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authorChristian Mauderer <christian.mauderer@embedded-brains.de>2012-06-28 10:43:08 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2012-07-12 09:51:44 +0200
commitad6c1f11384f16a7f79c9ceb3452e0bfed877c91 (patch)
treec1daa58f7cb58e42ba86b91538c3f32b5641be07
parentc65afce4300a14c77dd8b7557e919af5afd8d18a (diff)
downloadrtems-ad6c1f11384f16a7f79c9ceb3452e0bfed877c91.tar.bz2
mghttpd: Update Mongoose
Update to Mongoose Mercurial revision 268:38a02c8a6744 available at: https://code.google.com/p/mongoose/
-rw-r--r--cpukit/mghttpd/Makefile.am2
-rw-r--r--cpukit/mghttpd/mongoose.1233
-rw-r--r--cpukit/mghttpd/mongoose.c8409
-rw-r--r--cpukit/mghttpd/mongoose.h445
4 files changed, 4292 insertions, 4797 deletions
diff --git a/cpukit/mghttpd/Makefile.am b/cpukit/mghttpd/Makefile.am
index 2c2a918029..e4ed9fdee1 100644
--- a/cpukit/mghttpd/Makefile.am
+++ b/cpukit/mghttpd/Makefile.am
@@ -6,7 +6,7 @@ include_mghttpddir = $(includedir)/mghttpd
project_lib_LIBRARIES = libmghttpd.a
libmghttpd_a_CPPFLAGS = $(AM_CPPFLAGS)
# libmghttpd_a_CPPFLAGS += -DHAVE_MD5
-libmghttpd_a_CPPFLAGS += -DNO_SSI -DNO_SSL -DNO_CGI
+libmghttpd_a_CPPFLAGS += -DNO_SSL -DNO_POPEN -DNO_CGI
libmghttpd_a_SOURCES = mongoose.c mongoose.h
include_mghttpd_HEADERS = mongoose.h
diff --git a/cpukit/mghttpd/mongoose.1 b/cpukit/mghttpd/mongoose.1
index a83a44fefc..e02b186c2d 100644
--- a/cpukit/mghttpd/mongoose.1
+++ b/cpukit/mghttpd/mongoose.1
@@ -1,176 +1,167 @@
.\" Process this file with
.\" groff -man -Tascii mongoose.1
-.Dd Dec 1, 2008
+.\" $Id: mongoose.1,v 1.12 2008/11/29 15:32:42 drozd Exp $
+.Dd Aug 31, 2010
.Dt mongoose 1
.Sh NAME
.Nm mongoose
.Nd lightweight web server
.Sh SYNOPSIS
.Nm
-.Op Ar options
.Op Ar config_file
+.Op Ar OPTIONS
.Nm
.Fl A Ar htpasswd_file domain_name user_name password
.Sh DESCRIPTION
.Nm
-is small, fast and easy to use web server with CGI, SSL, Digest Authorization
-support.
+is small, fast and easy to use web server with CGI, SSL, MD5 authorization,
+and basic SSI support.
.Pp
.Nm
does not detach from terminal, and uses current working directory
as the web root, unless
-.Fl root
+.Fl r
option is specified.
-.Pp
-It is possible to specify multiple ports to listen on. For example, to
-make
+It is possible to specify multiple ports to listen on. For example, to make
+mongoose listen on HTTP port 80 and HTTPS port 443, one should start it as:
.Nm
-listen on HTTP port 80 and HTTPS port 443, one should start it as
-.Dq mongoose -ssl_cert cert.pem -ports 80,443s .
-.Pp
-Options may be specified in any order, with one exception: if SSL listening
-port is specified in the -ports option, then -ssl_cert option must be set
-before -ports option.
+.Fl s Ar cert.pem Fl p Ar 80,443s
.Pp
Unlike other web servers,
.Nm
-does not expect CGI scripts to be put in a special directory. CGI scripts may
-be anywhere. CGI files are recognized by the file extension.
-.Pp
-SSI files are also recognized by extension. Unknown SSI directives are silently
-ignored. Currently, two SSI directives supported, "include" and "exec". For the
-"include" directive, included file name can be specified in three different
-ways. Below is the summary of supported SSI directives:
-.Bl -bullet
-.It
-<!--#exec "shell command"--> Execute shell command.
-.It
-<!--#include "path"--> File path must be relative to the current document.
-.It
-<!--#include virtual="path"--> File path must be relative to the document root.
-.It
-<!--#include file="path"--> File path must be the absolute path.
+does not require CGI scripts be put in a special directory. CGI scripts can
+be anywhere. CGI (and SSI) files are recognized by the file name pattern.
+.Nm
+uses shell-like glob patterns with the following syntax:
+.Bl -tag -compact -width indent
+.It **
+Matches everything
+.It *
+Matches everything but slash character, '/'
+.It ?
+Matches any character
+.It $
+Matches the end of the string
+.It |
+Matches if pattern on the left side or the right side matches. Pattern on the
+left side is matched first
.El
+All other characters in the pattern match themselves.
.Pp
+If no arguments are given,
.Nm
-can use the configuration file. By default, it is "mongoose.conf", and if it
-is present in the same directory where
-.Nm
-lives, the command line options are read from it. Alternatively, the
-configuration file may be specified as a last argument. The format of the
-configuration file is exactly the same as for the command line options, the
-only difference is that the command line options must be specified on
-separate lines, and leading dashes for option names must be omitted.
-Lines beginning with '#' are regarded as comments and ignored.
+searches for a configuration file called "mongoose.conf" in the same directory
+where mongoose binary is located. Alternatively, a file name could be
+specified in the command line. Format of the configuration file is the same
+as for the command line options except that each option must be specified
+on a separate line, leading dashes for option names must be omitted.
+Lines beginning with '#' and empty lines are ignored.
.Pp
.Sh OPTIONS
.Bl -tag -width indent
.It Fl A Ar htpasswd_file domain_name user_name password
Add/edit user's password in the passwords file. Deleting users can be done
-with any text editor. Functionality similar to Apache's
+with any text editor. Functionality is similar to Apache's
.Ic htdigest
utility.
-.It Fl access_log Ar file
-Access log file. Default: not set, no logging is done.
-.It Fl acl Ar (+|-)x.x.x.x[/x],...
+.It Fl C Ar cgi_pattern
+All files that fully match cgi_pattern are treated as CGI.
+Default pattern allows CGI files be
+anywhere. To restrict CGIs to certain directory, use e.g. "-C /cgi-bin/**.cgi".
+Default: "**.cgi$|**.pl$|**.php$"
+.It Fl E Ar cgi_environment
+Extra environment variables to be passed to the CGI script in addition to
+standard ones. The list must be comma-separated list of X=Y pairs, like this:
+"VARIABLE1=VALUE1,VARIABLE2=VALUE2". Default: ""
+.It Fl G Ar put_delete_passwords_file
+PUT and DELETE passwords file. This must be specified if PUT or
+DELETE methods are used. Default: ""
+.It Fl I Ar cgi_interpreter
+Use
+.Ar cgi_interpreter
+as a CGI interpreter for all CGI scripts regardless script extension.
+Mongoose decides which interpreter to use by looking at
+the first line of a CGI script. Default: "".
+.It Fl M Ar max_request_size
+Maximum HTTP request size in bytes. Default: "16384"
+.It Fl P Ar protect_uri
+Comma separated list of URI=PATH pairs, specifying that given URIs
+must be protected with respected password files. Default: ""
+.It Fl R Ar authentication_domain
+Authorization realm. Default: "mydomain.com"
+.It Fl S Ar ssi_pattern
+All files that fully match ssi_pattern are treated as SSI.
+Unknown SSI directives are silently ignored. Currently, two SSI directives
+are supported, "include" and "exec". Default: "**.shtml$|**.shtm$"
+.It Fl a Ar access_log_file
+Access log file. Default: "", no logging is done.
+.It Fl d Ar enable_directory_listing
+Enable/disable directory listing. Default: "yes"
+.It Fl e Ar error_log_file
+Error log file. Default: "", no errors are logged.
+.It Fl g Ar global_passwords_file
+Location of a global passwords file. If set, per-directory .htpasswd files are
+ignored, and all requests must be authorised against that file. Default: ""
+.It Fl i Ar index_files
+Comma-separated list of files to be treated as directory index files.
+Default: "index.html,index.htm,index.cgi"
+.It Fl l Ar access_control_list
Specify access control list (ACL). ACL is a comma separated list
of IP subnets, each subnet is prepended by '-' or '+' sign. Plus means allow,
minus means deny. If subnet mask is
omitted, like "-1.2.3.4", then it means single IP address. Mask may vary
from 0 to 32 inclusive. On each request, full list is traversed, and
-last match wins. Default: not set, allow all.
-.It Fl admin_uri Ar uri
-If set,
-.Nm
-creates special administrative URI where options may be changed at runtime.
-This URI probably wants to be password-protected, look at
-.Fl protect
-option, and in the EXAMPLES section on how to do it. Default: not set.
-.It Fl aliases Ar list
-This options gives an ability to serve the directories outside web root
-by sort of symbolic linking to certain URI. The
-.Ar list
-must be comma-separated list of URI=PATH pairs, like this:
-"/etc/=/my_etc,/tmp=/my_tmp". Default: not set.
-.It Fl auth_PUT Ar file
-PUT and DELETE passwords file. This must be specified if PUT or
-DELETE methods are used. Default: not set.
-.It Fl auth_gpass Ar file
-Location of global passwords file. When set, per-directory .htpasswd files are
-ignored, and all accessed must be authorised against global passwords file.
-Default: not set.
-.It Fl auth_realm Ar domain_name
-Authorization realm. Default: "mydomain.com".
-.It Fl cgi_env Ar list
-Pass environment variables to the CGI script in addition to standard ones.
-The list must be comma-separated list of X=Y pairs, like this:
-"VARIABLE1=VALUE1,VARIABLE2=VALUE2". Default: not set.
-.It Fl cgi_ext Ar list
-Comma-separated list of CGI extensions. All files having these extensions
-are treated as CGI scripts. Default: "cgi,pl,php"
-.It Fl cgi_interp Ar file
-Force
-.Ar file
-to be a CGI interpreter for all CGI scripts. By default this option is not
-set, and
-.Nm
-decides which interpreter to use by looking at the first line of CGI script.
-.It Fl dir_list Ar yes|no
-Enable/disable directory listing. Default: "1" (enabled).
-.It Fl error_log Ar file
-Error log file. Default: not set, no errors are logged.
-.It Fl idle_time Ar num_seconds
-Number of seconds worker thread waits for some work before exit. Default: 10
-.It Fl max_threads Ar number
-Maximum number of worker threads to start. Default: 100
-.It Fl mime_types Ar list
-Additional to builtin mime types, in form
+last match wins. Default setting is to allow all. For example, to allow only
+192.168/16 subnet to connect, run "mongoose -0.0.0.0/0,+192.168/16".
+Default: ""
+.It Fl m Ar extra_mime_types
+Extra mime types to recognize, in form
"extension1=type1,extension2=type2,...". Extension must include dot.
-.It Fl ports Ar port_list
+Example: "mongoose -m .cpp=plain/text,.java=plain/text". Default: ""
+.It Fl p Ar listening_ports
Comma-separated list of ports to listen on. If the port is SSL, a letter 's'
-must be appeneded, for example, "-ports 80,443s" will open port 80 and port 443,
+must be appeneded, for example, "-p 80,443s" will open port 80 and port 443,
and connections on port 443 will be SSL-ed. It is possible to specify an
IP address to bind to. In this case, an IP address and a colon must be
-prepended to the port number, for example, "-ports 127.0.0.1:8080". Note that
-if SSL listening port is requested, then
-.Fl ssl_cert
-option must specified BEFORE
-.Fl ports
-option. Default: 8080
-.It Fl protect Ar list
-Comma separated list of URI=PATH pairs, specifying that given URIs
-must the protected with respected password files. Default: not set.
-.It Fl root Ar directory
-Location of the WWW root directory. Default: working directory from which
-.Nm
-has been started.
-.It Fl ssi_ext Ar list
-Comma separated list of SSI extensions. Default: "shtml,shtm".
-.It Fl ssl_cert Ar pem_file
-Location of SSL certificate file. Default: not set.
-.It Fl uid Ar login
-Switch to given user after startup. Default: not set.
+prepended to the port number. For example, to bind to a loopback interface
+on port 80 and to all interfaces on HTTPS port 443, use
+"mongoose -p 127.0.0.1:80,443s". Default: "8080"
+.It Fl r Ar document_root
+Location of the WWW root directory. Default: "."
+.It Fl s Ar ssl_certificate
+Location of SSL certificate file. Default: ""
+.It Fl t Ar num_threads
+Number of worker threads to start. Default: "10"
+.It Fl u Ar run_as_user
+Switch to given user's credentials after startup. Default: ""
+.It Fl w Ar url_rewrite_patterns
+Comma-separated list of URL rewrites in the form of
+"pattern=substitution,..." If the "pattern" matches some prefix
+of the requested URL, then matched prefix gets substituted with "substitution".
+For example, "-w /config=/etc,**.doc|**.rtf=/path/to/cgi-bin/handle_doc.cgi"
+will serve all URLs that start with "/config" from the "/etc" directory, and
+call handle_doc.cgi script for .doc and .rtf file requests. If some pattern
+matches, no further matching/substitution is performed
+(first matching pattern wins). Use full paths in substitutions. Default: ""
.El
.Pp
.Sh EMBEDDING
.Nm
was designed to be embeddable into C/C++ applications. Since the
-source code is contained in single C file, it is fairly easy to embed it,
-and to follow the updates. Please refer to http://code.google.com/p/mongoose
+source code is contained in single C file, it is fairly easy to embed it
+and follow the updates. Please refer to http://code.google.com/p/mongoose
for details.
.Pp
.Sh EXAMPLES
.Bl -tag -width indent
-.It Nm Fl root Ar /var/www Fl ssl_cert Ar /etc/cert.pem Fl ports Ar 8080,8043s Fl aliases Ar /aa=/tmp,/bb=/etc
-Start listening on port 8080 for HTTP, and 8043 for HTTPS connections.
-Use /etc/cert.pem as SSL certificate file. Web root is /var/www. In addition,
-map directory /tmp to URI /aa, directory /etc to URI /bb.
-.It Nm Fl acl Ar -0.0.0.0/0,+10.0.0.0/8,+1.2.3.4
+.It Nm Fl r Ar /var/www Fl s Ar /etc/cert.pem Fl p Ar 8080,8043s
+Start serving files from /var/www. Listen on port 8080 for HTTP, and 8043
+for HTTPS connections. Use /etc/cert.pem as SSL certificate file.
+.It Nm Fl l Ar -0.0.0.0/0,+10.0.0.0/8,+1.2.3.4
Deny connections from everywhere, allow only IP address 1.2.3.4 and
all IP addresses from 10.0.0.0/8 subnet to connect.
-.It Nm Fl admin_uri Ar /ctl Fl protect Ar /ctl=/tmp/passwords.txt
-Create an administrative URI "/ctl" where
-options may be changed at runtime, and protect that URI with authorization.
+.It Nm Fl w Ar **=/usr/bin/script.cgi
+Invoke /usr/bin/script.cgi for every incoming request, regardless of the URL.
.El
.Pp
.Sh COPYRIGHT
diff --git a/cpukit/mghttpd/mongoose.c b/cpukit/mghttpd/mongoose.c
index 24ce2cae0a..31c52756ee 100644
--- a/cpukit/mghttpd/mongoose.c
+++ b/cpukit/mghttpd/mongoose.c
@@ -1,41 +1,45 @@
-/*
- * Copyright (c) 2004-2009 Sergey Lyubka
- * Portions Copyright (c) 2009 Gilbert Wellisch
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#if HAVE_CONFIG_H
-#include "config.h"
-#endif
+// Copyright (c) 2004-2011 Sergey Lyubka
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
#if defined(_WIN32)
-#define _CRT_SECURE_NO_WARNINGS /* Disable deprecation warning in VS2005 */
-#endif /* _WIN32 */
+#define _CRT_SECURE_NO_WARNINGS // Disable deprecation warning in VS2005
+#else
+#define _XOPEN_SOURCE 600 // For flockfile() on Linux
+#define _LARGEFILE_SOURCE // Enable 64-bit file offsets
+#define __STDC_FORMAT_MACROS // <inttypes.h> wants this for C++
+#define __STDC_LIMIT_MACROS // C++ wants that for INT64_MAX
+#endif
+
+#if defined(__SYMBIAN32__)
+#define NO_SSL // SSL is not supported
+#define NO_CGI // CGI is not supported
+#define PATH_MAX FILENAME_MAX
+#endif // __SYMBIAN32__
-#ifndef _WIN32_WCE /* Some ANSI #includes are not available on Windows CE */
+#ifndef _WIN32_WCE // Some ANSI #includes are not available on Windows CE
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
-#endif /* !_WIN32_WCE */
+#endif // !_WIN32_WCE
#include <time.h>
#include <stdlib.h>
@@ -47,4691 +51,4204 @@
#include <stddef.h>
#include <stdio.h>
-#if defined(_WIN32) /* Windows specific #includes and #defines */
-#define _WIN32_WINNT 0x0400 /* To make it link in VS2005 */
+#if defined(_WIN32) && !defined(__SYMBIAN32__) // Windows specific
+#define _WIN32_WINNT 0x0400 // To make it link in VS2005
#include <windows.h>
+#ifndef PATH_MAX
+#define PATH_MAX MAX_PATH
+#endif
+
#ifndef _WIN32_WCE
#include <process.h>
#include <direct.h>
#include <io.h>
-#else /* _WIN32_WCE */
-/* Windows CE-specific definitions */
+#else // _WIN32_WCE
#include <winsock2.h>
-#define NO_CGI /* WinCE has no pipes */
-#define NO_SSI /* WinCE has no pipes */
+#include <ws2tcpip.h>
+#define NO_CGI // WinCE has no pipes
-#define FILENAME_MAX MAX_PATH
-#define BUFSIZ 4096
typedef long off_t;
-
-#define errno GetLastError()
-#define strerror(x) _ultoa(x, (char *) _alloca(sizeof(x) *3 ), 10)
-#endif /* _WIN32_WCE */
-
-#define EPOCH_DIFF 0x019DB1DED53E8000 /* 116444736000000000 nsecs */
-#define RATE_DIFF 10000000 /* 100 nsecs */
-#define MAKEUQUAD(lo, hi) ((uint64_t)(((uint32_t)(lo)) | \
- ((uint64_t)((uint32_t)(hi))) << 32))
-#define SYS2UNIX_TIME(lo, hi) \
- (time_t) ((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF)
-
-/*
- * Visual Studio 6 does not know __func__ or __FUNCTION__
- * The rest of MS compilers use __FUNCTION__, not C99 __func__
- * Also use _strtoui64 on modern M$ compilers
- */
+#define BUFSIZ 4096
+
+#define errno GetLastError()
+#define strerror(x) _ultoa(x, (char *) _alloca(sizeof(x) *3 ), 10)
+#endif // _WIN32_WCE
+
+#define MAKEUQUAD(lo, hi) ((uint64_t)(((uint32_t)(lo)) | \
+ ((uint64_t)((uint32_t)(hi))) << 32))
+#define RATE_DIFF 10000000 // 100 nsecs
+#define EPOCH_DIFF MAKEUQUAD(0xd53e8000, 0x019db1de)
+#define SYS2UNIX_TIME(lo, hi) \
+ (time_t) ((MAKEUQUAD((lo), (hi)) - EPOCH_DIFF) / RATE_DIFF)
+
+// Visual Studio 6 does not know __func__ or __FUNCTION__
+// The rest of MS compilers use __FUNCTION__, not C99 __func__
+// Also use _strtoui64 on modern M$ compilers
#if defined(_MSC_VER) && _MSC_VER < 1300
-#define STRX(x) #x
-#define STR(x) STRX(x)
-#define __func__ "line " STR(__LINE__)
-#define strtoull(x, y, z) strtoul(x, y, z)
+#define STRX(x) #x
+#define STR(x) STRX(x)
+#define __func__ "line " STR(__LINE__)
+#define strtoull(x, y, z) strtoul(x, y, z)
+#define strtoll(x, y, z) strtol(x, y, z)
#else
-#define __func__ __FUNCTION__
-#define strtoull(x, y, z) _strtoui64(x, y, z)
-#endif /* _MSC_VER */
-
-#define ERRNO GetLastError()
-#define NO_SOCKLEN_T
-#define SSL_LIB "ssleay32.dll"
-#define CRYPTO_LIB "libeay32.dll"
-#define DIRSEP '\\'
-#define IS_DIRSEP_CHAR(c) ((c) == '/' || (c) == '\\')
-#define O_NONBLOCK 0
-#define EWOULDBLOCK WSAEWOULDBLOCK
-#define _POSIX_
-#define INT64_FMT "I64"
-
-#define SHUT_WR 1
-#define snprintf _snprintf
-#define vsnprintf _vsnprintf
-#define sleep(x) Sleep((x) * 1000)
-
-#define popen(x, y) _popen(x, y)
-#define pclose(x) _pclose(x)
-#define close(x) _close(x)
-#define dlsym(x,y) GetProcAddress((HINSTANCE) (x), (y))
-#define RTLD_LAZY 0
-#define fseeko(x, y, z) fseek((x), (y), (z))
-#define fdopen(x, y) _fdopen((x), (y))
-#define write(x, y, z) _write((x), (y), (unsigned) z)
-#define read(x, y, z) _read((x), (y), (unsigned) z)
-#define flockfile(x) (void) 0
-#define funlockfile(x) (void) 0
+#define __func__ __FUNCTION__
+#define strtoull(x, y, z) _strtoui64(x, y, z)
+#define strtoll(x, y, z) _strtoi64(x, y, z)
+#endif // _MSC_VER
+
+#define ERRNO GetLastError()
+#define NO_SOCKLEN_T
+#define SSL_LIB "ssleay32.dll"
+#define CRYPTO_LIB "libeay32.dll"
+#define DIRSEP '\\'
+#define IS_DIRSEP_CHAR(c) ((c) == '/' || (c) == '\\')
+#define O_NONBLOCK 0
+#if !defined(EWOULDBLOCK)
+#define EWOULDBLOCK WSAEWOULDBLOCK
+#endif // !EWOULDBLOCK
+#define _POSIX_
+#define INT64_FMT "I64d"
+
+#define WINCDECL __cdecl
+#define SHUT_WR 1
+#define snprintf _snprintf
+#define vsnprintf _vsnprintf
+#define mg_sleep(x) Sleep(x)
+
+#define pipe(x) _pipe(x, BUFSIZ, _O_BINARY)
+#define popen(x, y) _popen(x, y)
+#define pclose(x) _pclose(x)
+#define close(x) _close(x)
+#define dlsym(x,y) GetProcAddress((HINSTANCE) (x), (y))
+#define RTLD_LAZY 0
+#define fseeko(x, y, z) fseek((x), (y), (z))
+#define fdopen(x, y) _fdopen((x), (y))
+#define write(x, y, z) _write((x), (y), (unsigned) z)
+#define read(x, y, z) _read((x), (y), (unsigned) z)
+#define flockfile(x) EnterCriticalSection(&global_log_file_lock)
+#define funlockfile(x) LeaveCriticalSection(&global_log_file_lock)
#if !defined(fileno)
-#define fileno(x) _fileno(x)
-#endif /* !fileno MINGW #defines fileno */
+#define fileno(x) _fileno(x)
+#endif // !fileno MINGW #defines fileno
typedef HANDLE pthread_mutex_t;
-typedef HANDLE pthread_cond_t;
+typedef struct {HANDLE signal, broadcast;} pthread_cond_t;
typedef DWORD pthread_t;
-#define pid_t HANDLE /* MINGW typedefs pid_t to int. Using #define here. */
+#define pid_t HANDLE // MINGW typedefs pid_t to int. Using #define here.
struct timespec {
- long tv_nsec;
- long tv_sec;
+ long tv_nsec;
+ long tv_sec;
};
static int pthread_mutex_lock(pthread_mutex_t *);
static int pthread_mutex_unlock(pthread_mutex_t *);
+static FILE *mg_fopen(const char *path, const char *mode);
#if defined(HAVE_STDINT)
#include <stdint.h>
#else
-typedef unsigned int uint32_t;
-typedef unsigned short uint16_t;
-typedef unsigned __int64 uint64_t;
-typedef __int64 int64_t;
-#define INT64_MAX 9223372036854775807
-#endif /* HAVE_STDINT */
-
-/*
- * POSIX dirent interface
- */
+typedef unsigned int uint32_t;
+typedef unsigned short uint16_t;
+typedef unsigned __int64 uint64_t;
+typedef __int64 int64_t;
+#define INT64_MAX 9223372036854775807
+#endif // HAVE_STDINT
+
+// POSIX dirent interface
struct dirent {
- char d_name[FILENAME_MAX];
+ char d_name[PATH_MAX];
};
typedef struct DIR {
- HANDLE handle;
- WIN32_FIND_DATAW info;
- struct dirent result;
+ HANDLE handle;
+ WIN32_FIND_DATAW info;
+ struct dirent result;
} DIR;
-#else /* UNIX specific */
+#else // UNIX specific
#include <sys/wait.h>
#include <sys/socket.h>
#include <sys/select.h>
-#if HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-#if defined(__rtems__)
-#define flockfile(x) (void) 0
-#define funlockfile(x) (void) 0
-#endif
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/time.h>
#include <stdint.h>
#include <inttypes.h>
+#include <netdb.h>
#include <pwd.h>
#include <unistd.h>
#include <dirent.h>
-#if HAVE_DLFCN_H
+#if !defined(NO_SSL_DL) && !defined(NO_SSL)
#include <dlfcn.h>
#endif
#include <pthread.h>
-#define SSL_LIB "libssl.so"
-#define CRYPTO_LIB "libcrypto.so"
-#define DIRSEP '/'
-#define IS_DIRSEP_CHAR(c) ((c) == '/')
-#define O_BINARY 0
-#define closesocket(a) close(a)
-#define mg_fopen(x, y) fopen(x, y)
-#define mg_mkdir(x, y) mkdir(x, y)
-#define mg_remove(x) remove(x)
-#define mg_rename(x, y) rename(x, y)
-#define ERRNO errno
-#define INVALID_SOCKET (-1)
-#define INT64_FMT PRId64
+#if defined(__MACH__)
+#define SSL_LIB "libssl.dylib"
+#define CRYPTO_LIB "libcrypto.dylib"
+#else
+#if !defined(SSL_LIB)
+#define SSL_LIB "libssl.so"
+#endif
+#if !defined(CRYPTO_LIB)
+#define CRYPTO_LIB "libcrypto.so"
+#endif
+#endif
+#define DIRSEP '/'
+#define IS_DIRSEP_CHAR(c) ((c) == '/')
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif // O_BINARY
+#define closesocket(a) close(a)
+#define mg_fopen(x, y) fopen(x, y)
+#define mg_mkdir(x, y) mkdir(x, y)
+#define mg_remove(x) remove(x)
+#define mg_rename(x, y) rename(x, y)
+#define mg_sleep(x) usleep((x) * 1000)
+#define ERRNO errno
+#define INVALID_SOCKET (-1)
+#define INT64_FMT PRId64
typedef int SOCKET;
+#define WINCDECL
-#endif /* End of Windows and UNIX specific includes */
+#endif // End of Windows and UNIX specific includes
#include "mongoose.h"
-#define MONGOOSE_VERSION "2.9"
-#define PASSWORDS_FILE_NAME ".htpasswd"
-#define CGI_ENVIRONMENT_SIZE 4096
-#define MAX_CGI_ENVIR_VARS 64
-#define MAX_REQUEST_SIZE 8192
-#define MAX_LISTENING_SOCKETS 10
-#define MAX_CALLBACKS 20
-#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
-#define DEBUG_MGS_PREFIX "*** Mongoose debug *** "
+#define MONGOOSE_VERSION "3.2"
+#define PASSWORDS_FILE_NAME ".htpasswd"
+#define CGI_ENVIRONMENT_SIZE 4096
+#define MAX_CGI_ENVIR_VARS 64
+#define ARRAY_SIZE(array) (sizeof(array) / sizeof(array[0]))
+
+#ifdef _WIN32
+static CRITICAL_SECTION global_log_file_lock;
+static pthread_t pthread_self(void) {
+ return GetCurrentThreadId();
+}
+#endif // _WIN32
#if defined(DEBUG)
-#define DEBUG_TRACE(x) do {printf x; putchar('\n'); fflush(stdout);} while (0)
+#define DEBUG_TRACE(x) do { \
+ flockfile(stdout); \
+ printf("*** %lu.%p.%s.%d: ", \
+ (unsigned long) time(NULL), (void *) pthread_self(), \
+ __func__, __LINE__); \
+ printf x; \
+ putchar('\n'); \
+ fflush(stdout); \
+ funlockfile(stdout); \
+} while (0)
#else
#define DEBUG_TRACE(x)
-#endif /* DEBUG */
+#endif // DEBUG
-/*
- * Darwin prior to 7.0 and Win32 do not have socklen_t
- */
+// Darwin prior to 7.0 and Win32 do not have socklen_t
#ifdef NO_SOCKLEN_T
typedef int socklen_t;
-#endif /* NO_SOCKLEN_T */
+#endif // NO_SOCKLEN_T
-#if !defined(FALSE)
-enum {FALSE, TRUE};
-#endif /* !FALSE */
+#if !defined(MSG_NOSIGNAL)
+#define MSG_NOSIGNAL 0
+#endif
-typedef int bool_t;
typedef void * (*mg_thread_func_t)(void *);
static const char *http_500_error = "Internal Server Error";
-/*
- * Snatched from OpenSSL includes. I put the prototypes here to be independent
- * from the OpenSSL source installation. Having this, mongoose + SSL can be
- * built on any system with binary SSL libraries installed.
- */
+// Snatched from OpenSSL includes. I put the prototypes here to be independent
+// from the OpenSSL source installation. Having this, mongoose + SSL can be
+// built on any system with binary SSL libraries installed.
typedef struct ssl_st SSL;
typedef struct ssl_method_st SSL_METHOD;
typedef struct ssl_ctx_st SSL_CTX;
-#define SSL_ERROR_WANT_READ 2
-#define SSL_ERROR_WANT_WRITE 3
-#define SSL_FILETYPE_PEM 1
-#define CRYPTO_LOCK 1
-
-/*
- * Dynamically loaded SSL functionality
- */
+#define SSL_ERROR_WANT_READ 2
+#define SSL_ERROR_WANT_WRITE 3
+#define SSL_FILETYPE_PEM 1
+#define CRYPTO_LOCK 1
+
+#if defined(NO_SSL_DL)
+extern void SSL_free(SSL *);
+extern int SSL_accept(SSL *);
+extern int SSL_connect(SSL *);
+extern int SSL_read(SSL *, void *, int);
+extern int SSL_write(SSL *, const void *, int);
+extern int SSL_get_error(const SSL *, int);
+extern int SSL_set_fd(SSL *, int);
+extern SSL *SSL_new(SSL_CTX *);
+extern SSL_CTX *SSL_CTX_new(SSL_METHOD *);
+extern SSL_METHOD *SSLv23_server_method(void);
+extern int SSL_library_init(void);
+extern void SSL_load_error_strings(void);
+extern int SSL_CTX_use_PrivateKey_file(SSL_CTX *, const char *, int);
+extern int SSL_CTX_use_certificate_file(SSL_CTX *, const char *, int);
+extern int SSL_CTX_use_certificate_chain_file(SSL_CTX *, const char *);
+extern void SSL_CTX_set_default_passwd_cb(SSL_CTX *, mg_callback_t);
+extern void SSL_CTX_free(SSL_CTX *);
+extern unsigned long ERR_get_error(void);
+extern char *ERR_error_string(unsigned long, char *);
+extern int CRYPTO_num_locks(void);
+extern void CRYPTO_set_locking_callback(void (*)(int, int, const char *, int));
+extern void CRYPTO_set_id_callback(unsigned long (*)(void));
+#else
+// Dynamically loaded SSL functionality
struct ssl_func {
- const char *name; /* SSL function name */
- void (*ptr)(void); /* Function pointer */
+ const char *name; // SSL function name
+ void (*ptr)(void); // Function pointer
};
-#define SSL_free(x) (* (void (*)(SSL *)) ssl_sw[0].ptr)(x)
-#define SSL_accept(x) (* (int (*)(SSL *)) ssl_sw[1].ptr)(x)
-#define SSL_connect(x) (* (int (*)(SSL *)) ssl_sw[2].ptr)(x)
-#define SSL_read(x,y,z) (* (int (*)(SSL *, void *, int)) \
- ssl_sw[3].ptr)((x),(y),(z))
-#define SSL_write(x,y,z) (* (int (*)(SSL *, const void *,int)) \
- ssl_sw[4].ptr)((x), (y), (z))
-#define SSL_get_error(x,y)(* (int (*)(SSL *, int)) ssl_sw[5])((x), (y))
-#define SSL_set_fd(x,y) (* (int (*)(SSL *, SOCKET)) ssl_sw[6].ptr)((x), (y))
-#define SSL_new(x) (* (SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)(x)
-#define SSL_CTX_new(x) (* (SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)(x)
-#define SSLv23_server_method() (* (SSL_METHOD * (*)(void)) ssl_sw[9].ptr)()
-#define SSL_library_init() (* (int (*)(void)) ssl_sw[10].ptr)()
-#define SSL_CTX_use_PrivateKey_file(x,y,z) (* (int (*)(SSL_CTX *, \
- const char *, int)) ssl_sw[11].ptr)((x), (y), (z))
-#define SSL_CTX_use_certificate_file(x,y,z) (* (int (*)(SSL_CTX *, \
- const char *, int)) ssl_sw[12].ptr)((x), (y), (z))
-#define SSL_CTX_set_default_passwd_cb(x,y) \
- (* (void (*)(SSL_CTX *, mg_spcb_t)) ssl_sw[13].ptr)((x),(y))
-#define SSL_CTX_free(x) (* (void (*)(SSL_CTX *)) ssl_sw[14].ptr)(x)
-
-#define CRYPTO_num_locks() (* (int (*)(void)) crypto_sw[0].ptr)()
-#define CRYPTO_set_locking_callback(x) \
- (* (void (*)(void (*)(int, int, const char *, int))) \
- crypto_sw[1].ptr)(x)
-#define CRYPTO_set_id_callback(x) \
- (* (void (*)(unsigned long (*)(void))) crypto_sw[2].ptr)(x)
-
-/*
- * set_ssl_option() function when called, updates this array.
- * It loads SSL library dynamically and changes NULLs to the actual addresses
- * of respective functions. The macros above (like SSL_connect()) are really
- * just calling these functions indirectly via the pointer.
- */
-static struct ssl_func ssl_sw[] = {
- {"SSL_free", NULL},
- {"SSL_accept", NULL},
- {"SSL_connect", NULL},
- {"SSL_read", NULL},
- {"SSL_write", NULL},
- {"SSL_get_error", NULL},
- {"SSL_set_fd", NULL},
- {"SSL_new", NULL},
- {"SSL_CTX_new", NULL},
- {"SSLv23_server_method", NULL},
- {"SSL_library_init", NULL},
- {"SSL_CTX_use_PrivateKey_file", NULL},
- {"SSL_CTX_use_certificate_file",NULL},
- {"SSL_CTX_set_default_passwd_cb",NULL},
- {"SSL_CTX_free", NULL},
- {NULL, NULL}
+#define SSL_free (* (void (*)(SSL *)) ssl_sw[0].ptr)
+#define SSL_accept (* (int (*)(SSL *)) ssl_sw[1].ptr)
+#define SSL_connect (* (int (*)(SSL *)) ssl_sw[2].ptr)
+#define SSL_read (* (int (*)(SSL *, void *, int)) ssl_sw[3].ptr)
+#define SSL_write (* (int (*)(SSL *, const void *,int)) ssl_sw[4].ptr)
+#define SSL_get_error (* (int (*)(SSL *, int)) ssl_sw[5].ptr)
+#define SSL_set_fd (* (int (*)(SSL *, SOCKET)) ssl_sw[6].ptr)
+#define SSL_new (* (SSL * (*)(SSL_CTX *)) ssl_sw[7].ptr)
+#define SSL_CTX_new (* (SSL_CTX * (*)(SSL_METHOD *)) ssl_sw[8].ptr)
+#define SSLv23_server_method (* (SSL_METHOD * (*)(void)) ssl_sw[9].ptr)
+#define SSL_library_init (* (int (*)(void)) ssl_sw[10].ptr)
+#define SSL_CTX_use_PrivateKey_file (* (int (*)(SSL_CTX *, \
+ const char *, int)) ssl_sw[11].ptr)
+#define SSL_CTX_use_certificate_file (* (int (*)(SSL_CTX *, \
+ const char *, int)) ssl_sw[12].ptr)
+#define SSL_CTX_set_default_passwd_cb \
+ (* (void (*)(SSL_CTX *, mg_callback_t)) ssl_sw[13].ptr)
+#define SSL_CTX_free (* (void (*)(SSL_CTX *)) ssl_sw[14].ptr)
+#define SSL_load_error_strings (* (void (*)(void)) ssl_sw[15].ptr)
+#define SSL_CTX_use_certificate_chain_file \
+ (* (int (*)(SSL_CTX *, const char *)) ssl_sw[16].ptr)
+
+#define CRYPTO_num_locks (* (int (*)(void)) crypto_sw[0].ptr)
+#define CRYPTO_set_locking_callback \
+ (* (void (*)(void (*)(int, int, const char *, int))) crypto_sw[1].ptr)
+#define CRYPTO_set_id_callback \
+ (* (void (*)(unsigned long (*)(void))) crypto_sw[2].ptr)
+#define ERR_get_error (* (unsigned long (*)(void)) crypto_sw[3].ptr)
+#define ERR_error_string (* (char * (*)(unsigned long,char *)) crypto_sw[4].ptr)
+
+// set_ssl_option() function updates this array.
+// It loads SSL library dynamically and changes NULLs to the actual addresses
+// of respective functions. The macros above (like SSL_connect()) are really
+// just calling these functions indirectly via the pointer.
+static struct ssl_func ssl_sw[] = {
+ {"SSL_free", NULL},
+ {"SSL_accept", NULL},
+ {"SSL_connect", NULL},
+ {"SSL_read", NULL},
+ {"SSL_write", NULL},
+ {"SSL_get_error", NULL},
+ {"SSL_set_fd", NULL},
+ {"SSL_new", NULL},
+ {"SSL_CTX_new", NULL},
+ {"SSLv23_server_method", NULL},
+ {"SSL_library_init", NULL},
+ {"SSL_CTX_use_PrivateKey_file", NULL},
+ {"SSL_CTX_use_certificate_file",NULL},
+ {"SSL_CTX_set_default_passwd_cb",NULL},
+ {"SSL_CTX_free", NULL},
+ {"SSL_load_error_strings", NULL},
+ {"SSL_CTX_use_certificate_chain_file", NULL},
+ {NULL, NULL}
};
+// Similar array as ssl_sw. These functions could be located in different lib.
#if !defined(NO_SSL)
-/*
- * Similar array as ssl_sw. These functions are located in different lib.
- */
-static struct ssl_func crypto_sw[] = {
- {"CRYPTO_num_locks", NULL},
- {"CRYPTO_set_locking_callback", NULL},
- {"CRYPTO_set_id_callback", NULL},
- {NULL, NULL}
+static struct ssl_func crypto_sw[] = {
+ {"CRYPTO_num_locks", NULL},
+ {"CRYPTO_set_locking_callback", NULL},
+ {"CRYPTO_set_id_callback", NULL},
+ {"ERR_get_error", NULL},
+ {"ERR_error_string", NULL},
+ {NULL, NULL}
};
-#endif
+#endif // NO_SSL
+#endif // NO_SSL_DL
-/*
- * Month names
- */
static const char *month_names[] = {
- "Jan", "Feb", "Mar", "Apr", "May", "Jun",
- "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+ "Jan", "Feb", "Mar", "Apr", "May", "Jun",
+ "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
-/*
- * Unified socket address. For IPv6 support, add IPv6 address structure
- * in the union u.
- */
-struct usa {
- socklen_t len;
- union {
- struct sockaddr sa;
- struct sockaddr_in sin;
- } u;
+// Unified socket address. For IPv6 support, add IPv6 address structure
+// in the union u.
+union usa {
+ struct sockaddr sa;
+ struct sockaddr_in sin;
+#if defined(USE_IPV6)
+ struct sockaddr_in6 sin6;
+#endif
};
-/*
- * Specifies a string (chunk of memory).
- * Used to traverse comma separated lists of options.
- */
+// Describes a string (chunk of memory).
struct vec {
- const char *ptr;
- size_t len;
+ const char *ptr;
+ size_t len;
};
-/*
- * Structure used by mg_stat() function. Uses 64 bit file length.
- */
+// Structure used by mg_stat() function. Uses 64 bit file length.
struct mgstat {
- bool_t is_directory; /* Directory marker */
- int64_t size; /* File size */
- time_t mtime; /* Modification time */
+ int is_directory; // Directory marker
+ int64_t size; // File size
+ time_t mtime; // Modification time
};
-struct mg_option {
- const char *name;
- const char *description;
- const char *default_value;
- int index;
- bool_t (*setter)(struct mg_context *, const char *);
-};
-
-/*
- * Numeric indexes for the option values in context, ctx->options
- */
-enum mg_option_index {
- OPT_ROOT, OPT_INDEX_FILES, OPT_PORTS, OPT_DIR_LIST, OPT_CGI_EXTENSIONS,
- OPT_CGI_INTERPRETER, OPT_CGI_ENV, OPT_SSI_EXTENSIONS, OPT_AUTH_DOMAIN,
- OPT_AUTH_GPASSWD, OPT_AUTH_PUT, OPT_ACCESS_LOG, OPT_ERROR_LOG,
- OPT_SSL_CERTIFICATE, OPT_ALIASES, OPT_ACL, OPT_UID, OPT_PROTECT,
- OPT_SERVICE, OPT_HIDE, OPT_ADMIN_URI, OPT_MAX_THREADS, OPT_IDLE_TIME,
- OPT_MIME_TYPES,
- NUM_OPTIONS
+// Describes listening socket, or socket which was accept()-ed by the master
+// thread and queued for future handling by the worker thread.
+struct socket {
+ struct socket *next; // Linkage
+ SOCKET sock; // Listening socket
+ union usa lsa; // Local socket address
+ union usa rsa; // Remote socket address
+ int is_ssl; // Is socket SSL-ed
};
-/*
- * Structure used to describe listening socket, or socket which was
- * accept()-ed by the master thread and queued for future handling
- * by the worker thread.
- */
-struct socket {
- SOCKET sock; /* Listening socket */
- struct usa lsa; /* Local socket address */
- struct usa rsa; /* Remote socket address */
- bool_t is_ssl; /* Is socket SSL-ed */
+enum {
+ CGI_EXTENSIONS, CGI_ENVIRONMENT, PUT_DELETE_PASSWORDS_FILE, CGI_INTERPRETER,
+ PROTECT_URI, AUTHENTICATION_DOMAIN, SSI_EXTENSIONS, ACCESS_LOG_FILE,
+ SSL_CHAIN_FILE, ENABLE_DIRECTORY_LISTING, ERROR_LOG_FILE,
+ GLOBAL_PASSWORDS_FILE, INDEX_FILES,
+ ENABLE_KEEP_ALIVE, ACCESS_CONTROL_LIST, MAX_REQUEST_SIZE,
+ EXTRA_MIME_TYPES, LISTENING_PORTS,
+ DOCUMENT_ROOT, SSL_CERTIFICATE, NUM_THREADS, RUN_AS_USER, REWRITE,
+ NUM_OPTIONS
};
-/*
- * Callback function, and where it is bound to
- */
-struct callback {
- char *uri_regex; /* URI regex to handle */
- mg_callback_t func; /* user callback */
- bool_t is_auth; /* func is auth checker */
- int status_code; /* error code to handle */
- void *user_data; /* opaque user data */
+static const char *config_options[] = {
+ "C", "cgi_pattern", "**.cgi$|**.pl$|**.php$",
+ "E", "cgi_environment", NULL,
+ "G", "put_delete_passwords_file", NULL,
+ "I", "cgi_interpreter", NULL,
+ "P", "protect_uri", NULL,
+ "R", "authentication_domain", "mydomain.com",
+ "S", "ssi_pattern", "**.shtml$|**.shtm$",
+ "a", "access_log_file", NULL,
+ "c", "ssl_chain_file", NULL,
+ "d", "enable_directory_listing", "yes",
+ "e", "error_log_file", NULL,
+ "g", "global_passwords_file", NULL,
+ "i", "index_files", "index.html,index.htm,index.cgi,index.shtml,index.php",
+ "k", "enable_keep_alive", "no",
+ "l", "access_control_list", NULL,
+ "M", "max_request_size", "16384",
+ "m", "extra_mime_types", NULL,
+ "p", "listening_ports", "8080",
+ "r", "document_root", ".",
+ "s", "ssl_certificate", NULL,
+ "t", "num_threads", "10",
+ "u", "run_as_user", NULL,
+ "w", "url_rewrite_patterns", NULL,
+ NULL
};
+#define ENTRIES_PER_CONFIG_OPTION 3
-/*
- * Mongoose context
- */
struct mg_context {
- int stop_flag; /* Should we stop event loop */
- SSL_CTX *ssl_ctx; /* SSL context */
+ volatile int stop_flag; // Should we stop event loop
+ SSL_CTX *ssl_ctx; // SSL context
+ char *config[NUM_OPTIONS]; // Mongoose configuration parameters
+ mg_callback_t user_callback; // User-defined callback function
+ void *user_data; // User-defined data
+
+ struct socket *listening_sockets;
+
+ volatile int num_threads; // Number of threads
+ pthread_mutex_t mutex; // Protects (max|num)_threads
+ pthread_cond_t cond; // Condvar for tracking workers terminations
+
+ struct socket queue[20]; // Accepted sockets
+ volatile int sq_head; // Head of the socket queue
+ volatile int sq_tail; // Tail of the socket queue
+ pthread_cond_t sq_full; // Singaled when socket is produced
+ pthread_cond_t sq_empty; // Signaled when socket is consumed
+};
- FILE *access_log; /* Opened access log */
- FILE *error_log; /* Opened error log */
+struct mg_connection {
+ struct mg_request_info request_info;
+ struct mg_context *ctx;
+ SSL *ssl; // SSL descriptor
+ struct socket client; // Connected client
+ time_t birth_time; // Time connection was accepted
+ int64_t num_bytes_sent; // Total bytes sent to client
+ int64_t content_len; // Content-Length header value
+ int64_t consumed_content; // How many bytes of content is already read
+ char *buf; // Buffer for received data
+ char *path_info; // PATH_INFO part of the URL
+ int must_close; // 1 if connection must be closed
+ int buf_size; // Buffer size
+ int request_len; // Size of the request + headers in a buffer
+ int data_len; // Total size of data in a buffer
+};
- struct socket listeners[MAX_LISTENING_SOCKETS];
- int num_listeners;
+const char **mg_get_valid_option_names(void) {
+ return config_options;
+}
+
+static void *call_user(struct mg_connection *conn, enum mg_event event) {
+ conn->request_info.user_data = conn->ctx->user_data;
+ return conn->ctx->user_callback == NULL ? NULL :
+ conn->ctx->user_callback(event, conn, &conn->request_info);
+}
+
+static int get_option_index(const char *name) {
+ int i;
+
+ for (i = 0; config_options[i] != NULL; i += ENTRIES_PER_CONFIG_OPTION) {
+ if (strcmp(config_options[i], name) == 0 ||
+ strcmp(config_options[i + 1], name) == 0) {
+ return i / ENTRIES_PER_CONFIG_OPTION;
+ }
+ }
+ return -1;
+}
+
+const char *mg_get_option(const struct mg_context *ctx, const char *name) {
+ int i;
+ if ((i = get_option_index(name)) == -1) {
+ return NULL;
+ } else if (ctx->config[i] == NULL) {
+ return "";
+ } else {
+ return ctx->config[i];
+ }
+}
+
+static void sockaddr_to_string(char *buf, size_t len,
+ const union usa *usa) {
+ buf[0] = '\0';
+#if defined(USE_IPV6)
+ inet_ntop(usa->sa.sa_family, usa->sa.sa_family == AF_INET ?
+ (void *) &usa->sin.sin_addr :
+ (void *) &usa->sin6.sin6_addr, buf, len);
+#elif defined(_WIN32)
+ // Only Windoze Vista (and newer) have inet_ntop()
+ strncpy(buf, inet_ntoa(usa->sin.sin_addr), len);
+#else
+ inet_ntop(usa->sa.sa_family, (void *) &usa->sin.sin_addr, buf, len);
+#endif
+}
- struct callback callbacks[MAX_CALLBACKS];
- int num_callbacks;
+// Print error message to the opened error log stream.
+static void cry(struct mg_connection *conn, const char *fmt, ...) {
+ char buf[BUFSIZ], src_addr[20];
+ va_list ap;
+ FILE *fp;
+ time_t timestamp;
- char *options[NUM_OPTIONS]; /* Configured opions */
- pthread_mutex_t opt_mutex[NUM_OPTIONS]; /* Option protector */
+ va_start(ap, fmt);
+ (void) vsnprintf(buf, sizeof(buf), fmt, ap);
+ va_end(ap);
- int max_threads; /* Maximum number of threads */
- int num_threads; /* Number of threads */
- int num_idle; /* Number of idle threads */
- pthread_mutex_t thr_mutex; /* Protects (max|num)_threads */
- pthread_cond_t thr_cond;
- pthread_mutex_t bind_mutex; /* Protects bind operations */
+ // Do not lock when getting the callback value, here and below.
+ // I suppose this is fine, since function cannot disappear in the
+ // same way string option can.
+ conn->request_info.log_message = buf;
+ if (call_user(conn, MG_EVENT_LOG) == NULL) {
+ fp = conn->ctx->config[ERROR_LOG_FILE] == NULL ? NULL :
+ mg_fopen(conn->ctx->config[ERROR_LOG_FILE], "a+");
- struct socket queue[20]; /* Accepted sockets */
- int sq_head; /* Head of the socket queue */
- int sq_tail; /* Tail of the socket queue */
- pthread_cond_t empty_cond; /* Socket queue empty condvar */
- pthread_cond_t full_cond; /* Socket queue full condvar */
+ if (fp != NULL) {
+ flockfile(fp);
+ timestamp = time(NULL);
- mg_spcb_t ssl_password_callback;
- mg_callback_t log_callback;
-};
+ sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
+ fprintf(fp, "[%010lu] [error] [client %s] ", (unsigned long) timestamp,
+ src_addr);
-/*
- * Client connection.
- */
-struct mg_connection {
- struct mg_request_info request_info;
- struct mg_context *ctx; /* Mongoose context we belong to*/
- SSL *ssl; /* SSL descriptor */
- struct socket client; /* Connected client */
- time_t birth_time; /* Time connection was accepted */
- bool_t free_post_data; /* post_data was malloc-ed */
- bool_t embedded_auth; /* Used for authorization */
- int64_t num_bytes_sent; /* Total bytes sent to client */
-};
+ if (conn->request_info.request_method != NULL) {
+ fprintf(fp, "%s %s: ", conn->request_info.request_method,
+ conn->request_info.uri);
+ }
-/*
- * Print error message to the opened error log stream.
- */
-static void
-cry(struct mg_connection *conn, const char *fmt, ...)
-{
- char buf[BUFSIZ];
- va_list ap;
+ (void) fprintf(fp, "%s", buf);
+ fputc('\n', fp);
+ funlockfile(fp);
+ if (fp != stderr) {
+ fclose(fp);
+ }
+ }
+ }
+ conn->request_info.log_message = NULL;
+}
- va_start(ap, fmt);
- (void) vsnprintf(buf, sizeof(buf), fmt, ap);
- conn->ctx->log_callback(conn, &conn->request_info, buf);
- va_end(ap);
+// Return fake connection structure. Used for logging, if connection
+// is not applicable at the moment of logging.
+static struct mg_connection *fc(struct mg_context *ctx) {
+ static struct mg_connection fake_connection;
+ fake_connection.ctx = ctx;
+ return &fake_connection;
}
-/*
- * Return fake connection structure. Used for logging, if connection
- * is not applicable at the moment of logging.
- */
-static struct mg_connection *
-fc(struct mg_context *ctx)
-{
- static struct mg_connection fake_connection;
- fake_connection.ctx = ctx;
- return (&fake_connection);
+const char *mg_version(void) {
+ return MONGOOSE_VERSION;
}
-/*
- * If an embedded code does not intercept logging by calling
- * mg_set_log_callback(), this function is used for logging. It prints
- * stuff to the conn->error_log, which is stderr unless "error_log"
- * option was set.
- */
-static void
-builtin_error_log(struct mg_connection *conn,
- const struct mg_request_info *request_info, void *message)
-{
- FILE *fp;
- time_t timestamp;
+static void mg_strlcpy(register char *dst, register const char *src, size_t n) {
+ for (; *src != '\0' && n > 1; n--) {
+ *dst++ = *src++;
+ }
+ *dst = '\0';
+}
- fp = conn->ctx->error_log;
- flockfile(fp);
+static int lowercase(const char *s) {
+ return tolower(* (const unsigned char *) s);
+}
- timestamp = time(NULL);
+static int mg_strncasecmp(const char *s1, const char *s2, size_t len) {
+ int diff = 0;
- (void) fprintf(fp,
- "[%010lu] [error] [client %s] ",
- (unsigned long) timestamp,
- inet_ntoa(conn->client.rsa.u.sin.sin_addr));
+ if (len > 0)
+ do {
+ diff = lowercase(s1++) - lowercase(s2++);
+ } while (diff == 0 && s1[-1] != '\0' && --len > 0);
- if (request_info->request_method != NULL)
- (void) fprintf(fp, "%s %s: ",
- request_info->request_method,
- request_info->uri);
+ return diff;
+}
- (void) fprintf(fp, "%s", (char *) message);
+static int mg_strcasecmp(const char *s1, const char *s2) {
+ int diff;
- fputc('\n', fp);
+ do {
+ diff = lowercase(s1++) - lowercase(s2++);
+ } while (diff == 0 && s1[-1] != '\0');
- funlockfile(fp);
+ return diff;
}
-const char *
-mg_version(void)
-{
- return (MONGOOSE_VERSION);
-}
+static char * mg_strndup(const char *ptr, size_t len) {
+ char *p;
+
+ if ((p = (char *) malloc(len + 1)) != NULL) {
+ mg_strlcpy(p, ptr, len + 1);
+ }
-static void
-mg_strlcpy(register char *dst, register const char *src, size_t n)
-{
- for (; *src != '\0' && n > 1; n--)
- *dst++ = *src++;
- *dst = '\0';
+ return p;
}
-static int
-lowercase(const char *s)
-{
- return (tolower(* (unsigned char *) s));
+static char * mg_strdup(const char *str) {
+ return mg_strndup(str, strlen(str));
}
-static int
-mg_strncasecmp(const char *s1, const char *s2, size_t len)
-{
- int diff = 0;
+// Like snprintf(), but never returns negative value, or the value
+// that is larger than a supplied buffer.
+// Thanks to Adam Zeldis to pointing snprintf()-caused vulnerability
+// in his audit report.
+static int mg_vsnprintf(struct mg_connection *conn, char *buf, size_t buflen,
+ const char *fmt, va_list ap) {
+ int n;
- if (len > 0)
- do {
- diff = lowercase(s1++) - lowercase(s2++);
- } while (diff == 0 && s1[-1] != '\0' && --len > 0);
+ if (buflen == 0)
+ return 0;
- return (diff);
+ n = vsnprintf(buf, buflen, fmt, ap);
+
+ if (n < 0) {
+ cry(conn, "vsnprintf error");
+ n = 0;
+ } else if (n >= (int) buflen) {
+ cry(conn, "truncating vsnprintf buffer: [%.*s]",
+ n > 200 ? 200 : n, buf);
+ n = (int) buflen - 1;
+ }
+ buf[n] = '\0';
+
+ return n;
}
-static int
-mg_strcasecmp(const char *s1, const char *s2)
-{
- int diff;
+static int mg_snprintf(struct mg_connection *conn, char *buf, size_t buflen,
+ const char *fmt, ...) {
+ va_list ap;
+ int n;
- do {
- diff = lowercase(s1++) - lowercase(s2++);
- } while (diff == 0 && s1[-1] != '\0');
+ va_start(ap, fmt);
+ n = mg_vsnprintf(conn, buf, buflen, fmt, ap);
+ va_end(ap);
- return (diff);
+ return n;
}
-static char *
-mg_strndup(const char *ptr, size_t len)
-{
- char *p;
+// Skip the characters until one of the delimiters characters found.
+// 0-terminate resulting word. Skip the delimiter and following whitespaces if any.
+// Advance pointer to buffer to the next word. Return found 0-terminated word.
+// Delimiters can be quoted with quotechar.
+static char *skip_quoted(char **buf, const char *delimiters, const char *whitespace, char quotechar) {
+ char *p, *begin_word, *end_word, *end_whitespace;
- if ((p = (char *) malloc(len + 1)) != NULL)
- mg_strlcpy(p, ptr, len + 1);
-
- return (p);
+ begin_word = *buf;
+ end_word = begin_word + strcspn(begin_word, delimiters);
+ // Check for quotechar
+ if (end_word > begin_word) {
+ p = end_word - 1;
+ while (*p == quotechar) {
+ // If there is anything beyond end_word, copy it
+ if (*end_word == '\0') {
+ *p = '\0';
+ break;
+ } else {
+ size_t end_off = strcspn(end_word + 1, delimiters);
+ memmove (p, end_word, end_off + 1);
+ p += end_off; // p must correspond to end_word - 1
+ end_word += end_off + 1;
+ }
+ }
+ for (p++; p < end_word; p++) {
+ *p = '\0';
+ }
+ }
+
+ if (*end_word == '\0') {
+ *buf = end_word;
+ } else {
+ end_whitespace = end_word + 1 + strspn(end_word + 1, whitespace);
+
+ for (p = end_word; p < end_whitespace; p++) {
+ *p = '\0';
+ }
+
+ *buf = end_whitespace;
+ }
+
+ return begin_word;
+}
+
+// Simplified version of skip_quoted without quote char
+// and whitespace == delimiters
+static char *skip(char **buf, const char *delimiters) {
+ return skip_quoted(buf, delimiters, delimiters, 0);
+}
+
+
+// Return HTTP header value, or NULL if not found.
+static const char *get_header(const struct mg_request_info *ri,
+ const char *name) {
+ int i;
+
+ for (i = 0; i < ri->num_headers; i++)
+ if (!mg_strcasecmp(name, ri->http_headers[i].name))
+ return ri->http_headers[i].value;
+
+ return NULL;
+}
+
+const char *mg_get_header(const struct mg_connection *conn, const char *name) {
+ return get_header(&conn->request_info, name);
+}
+
+// A helper function for traversing comma separated list of values.
+// It returns a list pointer shifted to the next value, of NULL if the end
+// of the list found.
+// Value is stored in val vector. If value has form "x=y", then eq_val
+// vector is initialized to point to the "y" part, and val vector length
+// is adjusted to point only to "x".
+static const char *next_option(const char *list, struct vec *val,
+ struct vec *eq_val) {
+ if (list == NULL || *list == '\0') {
+ // End of the list
+ list = NULL;
+ } else {
+ val->ptr = list;
+ if ((list = strchr(val->ptr, ',')) != NULL) {
+ // Comma found. Store length and shift the list ptr
+ val->len = list - val->ptr;
+ list++;
+ } else {
+ // This value is the last one
+ list = val->ptr + strlen(val->ptr);
+ val->len = list - val->ptr;
+ }
+
+ if (eq_val != NULL) {
+ // Value has form "x=y", adjust pointers and lengths
+ // so that val points to "x", and eq_val points to "y".
+ eq_val->len = 0;
+ eq_val->ptr = (const char *) memchr(val->ptr, '=', val->len);
+ if (eq_val->ptr != NULL) {
+ eq_val->ptr++; // Skip over '=' character
+ eq_val->len = val->ptr + val->len - eq_val->ptr;
+ val->len = (eq_val->ptr - val->ptr) - 1;
+ }
+ }
+ }
+
+ return list;
+}
+
+static int match_prefix(const char *pattern, int pattern_len, const char *str) {
+ const char *or_str;
+ int i, j, len, res;
+
+ if ((or_str = (const char *) memchr(pattern, '|', pattern_len)) != NULL) {
+ res = match_prefix(pattern, or_str - pattern, str);
+ return res > 0 ? res :
+ match_prefix(or_str + 1, (pattern + pattern_len) - (or_str + 1), str);
+ }
+
+ i = j = 0;
+ res = -1;
+ for (; i < pattern_len; i++, j++) {
+ if (pattern[i] == '?' && str[j] != '\0') {
+ continue;
+ } else if (pattern[i] == '$') {
+ return str[j] == '\0' ? j : -1;
+ } else if (pattern[i] == '*') {
+ i++;
+ if (pattern[i] == '*') {
+ i++;
+ len = strlen(str + j);
+ } else {
+ len = strcspn(str + j, "/");
+ }
+ if (i == pattern_len) {
+ return j + len;
+ }
+ do {
+ res = match_prefix(pattern + i, pattern_len - i, str + j + len);
+ } while (res == -1 && len-- > 0);
+ return res == -1 ? -1 : j + res + len;
+ } else if (pattern[i] != str[j]) {
+ return -1;
+ }
+ }
+ return j;
+}
+
+// HTTP 1.1 assumes keep alive if "Connection:" header is not set
+// This function must tolerate situations when connection info is not
+// set up, for example if request parsing failed.
+static int should_keep_alive(const struct mg_connection *conn) {
+ const char *http_version = conn->request_info.http_version;
+ const char *header = mg_get_header(conn, "Connection");
+ if (conn->must_close ||
+ conn->request_info.status_code == 401 ||
+ mg_strcasecmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes") != 0 ||
+ (header != NULL && mg_strcasecmp(header, "keep-alive") != 0) ||
+ (header == NULL && http_version && strcmp(http_version, "1.1"))) {
+ return 0;
+ }
+ return 1;
+}
+
+static const char *suggest_connection_header(const struct mg_connection *conn) {
+ return should_keep_alive(conn) ? "keep-alive" : "close";
+}
+
+static void send_http_error(struct mg_connection *conn, int status,
+ const char *reason, const char *fmt, ...) {
+ char buf[BUFSIZ];
+ va_list ap;
+ int len;
+
+ conn->request_info.status_code = status;
+
+ if (call_user(conn, MG_HTTP_ERROR) == NULL) {
+ buf[0] = '\0';
+ len = 0;
+
+ // Errors 1xx, 204 and 304 MUST NOT send a body
+ if (status > 199 && status != 204 && status != 304) {
+ len = mg_snprintf(conn, buf, sizeof(buf), "Error %d: %s", status, reason);
+ cry(conn, "%s", buf);
+ buf[len++] = '\n';
+
+ va_start(ap, fmt);
+ len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len, fmt, ap);
+ va_end(ap);
+ }
+ DEBUG_TRACE(("[%s]", buf));
+
+ mg_printf(conn, "HTTP/1.1 %d %s\r\n"
+ "Content-Type: text/plain\r\n"
+ "Content-Length: %d\r\n"
+ "Connection: %s\r\n\r\n", status, reason, len,
+ suggest_connection_header(conn));
+ conn->num_bytes_sent += mg_printf(conn, "%s", buf);
+ }
+}
+
+#if defined(_WIN32) && !defined(__SYMBIAN32__)
+static int pthread_mutex_init(pthread_mutex_t *mutex, void *unused) {
+ unused = NULL;
+ *mutex = CreateMutex(NULL, FALSE, NULL);
+ return *mutex == NULL ? -1 : 0;
+}
+
+static int pthread_mutex_destroy(pthread_mutex_t *mutex) {
+ return CloseHandle(*mutex) == 0 ? -1 : 0;
+}
+
+static int pthread_mutex_lock(pthread_mutex_t *mutex) {
+ return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
+}
+
+static int pthread_mutex_unlock(pthread_mutex_t *mutex) {
+ return ReleaseMutex(*mutex) == 0 ? -1 : 0;
+}
+
+static int pthread_cond_init(pthread_cond_t *cv, const void *unused) {
+ unused = NULL;
+ cv->signal = CreateEvent(NULL, FALSE, FALSE, NULL);
+ cv->broadcast = CreateEvent(NULL, TRUE, FALSE, NULL);
+ return cv->signal != NULL && cv->broadcast != NULL ? 0 : -1;
+}
+
+static int pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex) {
+ HANDLE handles[] = {cv->signal, cv->broadcast};
+ ReleaseMutex(*mutex);
+ WaitForMultipleObjects(2, handles, FALSE, INFINITE);
+ return WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1;
+}
+
+static int pthread_cond_signal(pthread_cond_t *cv) {
+ return SetEvent(cv->signal) == 0 ? -1 : 0;
+}
+
+static int pthread_cond_broadcast(pthread_cond_t *cv) {
+ // Implementation with PulseEvent() has race condition, see
+ // http://www.cs.wustl.edu/~schmidt/win32-cv-1.html
+ return PulseEvent(cv->broadcast) == 0 ? -1 : 0;
}
-static char *
-mg_strdup(const char *str)
-{
- return (mg_strndup(str, strlen(str)));
+static int pthread_cond_destroy(pthread_cond_t *cv) {
+ return CloseHandle(cv->signal) && CloseHandle(cv->broadcast) ? 0 : -1;
}
-/*
- * Like snprintf(), but never returns negative value, or the value
- * that is larger than a supplied buffer.
- * Thanks to Adam Zeldis to pointing snprintf()-caused vulnerability
- * in his audit report.
- */
-static int
-mg_vsnprintf(struct mg_connection *conn,
- char *buf, size_t buflen, const char *fmt, va_list ap)
-{
- int n;
+// For Windows, change all slashes to backslashes in path names.
+static void change_slashes_to_backslashes(char *path) {
+ int i;
- if (buflen == 0)
- return (0);
+ for (i = 0; path[i] != '\0'; i++) {
+ if (path[i] == '/')
+ path[i] = '\\';
+ // i > 0 check is to preserve UNC paths, like \\server\file.txt
+ if (path[i] == '\\' && i > 0)
+ while (path[i + 1] == '\\' || path[i + 1] == '/')
+ (void) memmove(path + i + 1,
+ path + i + 2, strlen(path + i + 1));
+ }
+}
- n = vsnprintf(buf, buflen, fmt, ap);
+// Encode 'path' which is assumed UTF-8 string, into UNICODE string.
+// wbuf and wbuf_len is a target buffer and its length.
+static void to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len) {
+ char buf[PATH_MAX], buf2[PATH_MAX], *p;
- if (n < 0) {
- cry(conn, "vsnprintf error");
- n = 0;
- } else if (n >= (int) buflen) {
- cry(conn, "truncating vsnprintf buffer: [%.*s]",
- n > 200 ? 200 : n, buf);
- n = (int) buflen - 1;
- }
- buf[n] = '\0';
+ mg_strlcpy(buf, path, sizeof(buf));
+ change_slashes_to_backslashes(buf);
- return (n);
-}
+ // Point p to the end of the file name
+ p = buf + strlen(buf) - 1;
-static int
-mg_snprintf(struct mg_connection *conn,
- char *buf, size_t buflen, const char *fmt, ...)
-{
- va_list ap;
- int n;
-
- va_start(ap, fmt);
- n = mg_vsnprintf(conn, buf, buflen, fmt, ap);
- va_end(ap);
-
- return (n);
-}
-
-/*
- * Convert string representing a boolean value to a boolean value
- */
-static bool_t
-is_true(const char *str)
-{
- static const char *trues[] = {"1", "yes", "true", "ja", NULL};
- int i;
-
- for (i = 0; trues[i] != NULL; i++)
- if (str != NULL && mg_strcasecmp(str, trues[i]) == 0)
- return (TRUE);
-
- return (FALSE);
-}
-
-/*
- * Skip the characters until one of the delimiters characters found.
- * 0-terminate resulting word. Skip the rest of the delimiters if any.
- * Advance pointer to buffer to the next word. Return found 0-terminated word.
- */
-static char *
-skip(char **buf, const char *delimiters)
-{
- char *p, *begin_word, *end_word, *end_delimiters;
-
- begin_word = *buf;
- end_word = begin_word + strcspn(begin_word, delimiters);
- end_delimiters = end_word + strspn(end_word, delimiters);
-
- for (p = end_word; p < end_delimiters; p++)
- *p = '\0';
-
- *buf = end_delimiters;
-
- return (begin_word);
-}
-
-/*
- * Return HTTP header value, or NULL if not found.
- */
-static const char *
-get_header(const struct mg_request_info *ri, const char *name)
-{
- int i;
-
- for (i = 0; i < ri->num_headers; i++)
- if (!mg_strcasecmp(name, ri->http_headers[i].name))
- return (ri->http_headers[i].value);
-
- return (NULL);
-}
-
-const char *
-mg_get_header(const struct mg_connection *conn, const char *name)
-{
- return (get_header(&conn->request_info, name));
-}
-
-/*
- * A helper function for traversing comma separated list of values.
- * It returns a list pointer shifted to the next value, of NULL if the end
- * of the list found.
- * Value is stored in val vector. If value has form "x=y", then eq_val
- * vector is initialized to point to the "y" part, and val vector length
- * is adjusted to point only to "x".
- */
-static const char *
-next_option(const char *list, struct vec *val, struct vec *eq_val)
-{
- if (list == NULL || *list == '\0') {
- /* End of the list */
- list = NULL;
- } else {
- val->ptr = list;
- if ((list = strchr(val->ptr, ',')) != NULL) {
- /* Comma found. Store length and shift the list ptr */
- val->len = list - val->ptr;
- list++;
- } else {
- /* This value is the last one */
- list = val->ptr + strlen(val->ptr);
- val->len = list - val->ptr;
- }
-
- if (eq_val != NULL) {
- /*
- * Value has form "x=y", adjust pointers and lengths
- * so that val points to "x", and eq_val points to "y".
- */
- eq_val->len = 0;
- eq_val->ptr = memchr(val->ptr, '=', val->len);
- if (eq_val->ptr != NULL) {
- eq_val->ptr++; /* Skip over '=' character */
- eq_val->len = val->ptr + val->len - eq_val->ptr;
- val->len = (eq_val->ptr - val->ptr) - 1;
- }
- }
- }
-
- return (list);
-}
-
-#if !(defined(NO_CGI) && defined(NO_SSI))
-/*
- * Verify that given file has certain extension
- */
-static bool_t
-match_extension(const char *path, const char *ext_list)
-{
- struct vec ext_vec;
- size_t path_len;
-
- path_len = strlen(path);
-
- while ((ext_list = next_option(ext_list, &ext_vec, NULL)) != NULL)
- if (ext_vec.len < path_len &&
- mg_strncasecmp(path + path_len - ext_vec.len,
- ext_vec.ptr, ext_vec.len) == 0)
- return (TRUE);
-
- return (FALSE);
-}
-#endif /* !(NO_CGI && NO_SSI) */
-
-/*
- * Return TRUE if "uri" matches "regexp".
- * '*' in the regexp means zero or more characters.
- */
-static bool_t
-match_regex(const char *uri, const char *regexp)
-{
- if (*regexp == '\0')
- return (*uri == '\0');
-
- if (*regexp == '*')
- do {
- if (match_regex(uri, regexp + 1))
- return (TRUE);
- } while (*uri++ != '\0');
-
- if (*uri != '\0' && *regexp == *uri)
- return (match_regex(uri + 1, regexp + 1));
-
- return (FALSE);
-}
-
-static const struct callback *
-find_callback(struct mg_context *ctx, bool_t is_auth,
- const char *uri, int status_code)
-{
- const struct callback *cb, *found;
- int i;
-
- found = NULL;
- pthread_mutex_lock(&ctx->bind_mutex);
- for (i = 0; i < ctx->num_callbacks; i++) {
- cb = ctx->callbacks + i;
- if ((uri != NULL && cb->uri_regex != NULL &&
- ((is_auth && cb->is_auth) || (!is_auth && !cb->is_auth)) &&
- match_regex(uri, cb->uri_regex)) || (uri == NULL &&
- (cb->status_code == 0 ||
- cb->status_code == status_code))) {
- found = cb;
- break;
- }
- }
- pthread_mutex_unlock(&ctx->bind_mutex);
-
- return (found);
-}
-
-/*
- * For use by external application. This sets custom logging function.
- */
-void
-mg_set_log_callback(struct mg_context *ctx, mg_callback_t log_callback)
-{
- /* If NULL is specified as a callback, revert back to the default */
- if (log_callback == NULL)
- ctx->log_callback = &builtin_error_log;
- else
- ctx->log_callback = log_callback;
-}
-
-/*
- * Send error message back to the client.
- */
-static void
-send_error(struct mg_connection *conn, int status, const char *reason,
- const char *fmt, ...)
-{
- const struct callback *cb;
- char buf[BUFSIZ];
- va_list ap;
- int len;
-
- conn->request_info.status_code = status;
-
- /* If error handler is set, call it. Otherwise, send error message */
- if ((cb = find_callback(conn->ctx, FALSE, NULL, status)) != NULL) {
- cb->func(conn, &conn->request_info, cb->user_data);
- } else {
- buf[0] = '\0';
- len = 0;
-
- /* Errors 1xx, 204 and 304 MUST NOT send a body */
- if (status > 199 && status != 204 && status != 304) {
- len = mg_snprintf(conn, buf, sizeof(buf),
- "Error %d: %s\n", status, reason);
- cry(conn, "%s", buf);
-
- va_start(ap, fmt);
- len += mg_vsnprintf(conn, buf + len, sizeof(buf) - len,
- fmt, ap);
- va_end(ap);
- conn->num_bytes_sent = len;
- }
-
- (void) mg_printf(conn,
- "HTTP/1.1 %d %s\r\n"
- "Content-Type: text/plain\r\n"
- "Content-Length: %d\r\n"
- "Connection: close\r\n"
- "\r\n%s", status, reason, len, buf);
- }
-}
+ // Trim trailing backslash character
+ while (p > buf && *p == '\\' && p[-1] != ':') {
+ *p-- = '\0';
+ }
-#ifdef _WIN32
-static int
-pthread_mutex_init(pthread_mutex_t *mutex, void *unused)
-{
- unused = NULL;
- *mutex = CreateMutex(NULL, FALSE, NULL);
- return (*mutex == NULL ? -1 : 0);
-}
-
-static int
-pthread_mutex_destroy(pthread_mutex_t *mutex)
-{
- return (CloseHandle(*mutex) == 0 ? -1 : 0);
-}
-
-static int
-pthread_mutex_lock(pthread_mutex_t *mutex)
-{
- return (WaitForSingleObject(*mutex, INFINITE) == WAIT_OBJECT_0? 0 : -1);
-}
-
-static int
-pthread_mutex_unlock(pthread_mutex_t *mutex)
-{
- return (ReleaseMutex(*mutex) == 0 ? -1 : 0);
-}
-
-static int
-pthread_cond_init(pthread_cond_t *cv, const void *unused)
-{
- unused = NULL;
- *cv = CreateEvent(NULL, FALSE, FALSE, NULL);
- return (*cv == NULL ? -1 : 0);
-}
-
-static int
-pthread_cond_timedwait(pthread_cond_t *cv, pthread_mutex_t *mutex,
- const struct timespec *ts)
-{
- DWORD status;
- DWORD msec = INFINITE;
- time_t now;
-
- if (ts != NULL) {
- now = time(NULL);
- msec = 1000 * (now > ts->tv_sec ? 0 : ts->tv_sec - now);
- }
-
- (void) ReleaseMutex(*mutex);
- status = WaitForSingleObject(*cv, msec);
- (void) WaitForSingleObject(*mutex, INFINITE);
-
- return (status == WAIT_OBJECT_0 ? 0 : -1);
-}
-
-static int
-pthread_cond_wait(pthread_cond_t *cv, pthread_mutex_t *mutex)
-{
- return (pthread_cond_timedwait(cv, mutex, NULL));
-}
-
-static int
-pthread_cond_signal(pthread_cond_t *cv)
-{
- return (SetEvent(*cv) == 0 ? -1 : 0);
-}
-
-static int
-pthread_cond_destroy(pthread_cond_t *cv)
-{
- return (CloseHandle(*cv) == 0 ? -1 : 0);
-}
-
-static pthread_t
-pthread_self(void)
-{
- return (GetCurrentThreadId());
-}
-
-/*
- * Change all slashes to backslashes. It is Windows.
- */
-static void
-fix_directory_separators(char *path)
-{
- int i;
-
- for (i = 0; path[i] != '\0'; i++) {
- if (path[i] == '/')
- path[i] = '\\';
- /* i > 0 check is to preserve UNC paths, \\server\file.txt */
- if (path[i] == '\\' && i > 0)
- while (path[i + 1] == '\\' || path[i + 1] == '/')
- (void) memmove(path + i + 1,
- path + i + 2, strlen(path + i + 1));
- }
-}
-
-/*
- * Encode 'path' which is assumed UTF-8 string, into UNICODE string.
- * wbuf and wbuf_len is a target buffer and its length.
- */
-static void
-to_unicode(const char *path, wchar_t *wbuf, size_t wbuf_len)
-{
- char buf[FILENAME_MAX], *p;
-
- mg_strlcpy(buf, path, sizeof(buf));
- fix_directory_separators(buf);
-
- /* Point p to the end of the file name */
- p = buf + strlen(buf) - 1;
-
- /* Trim trailing backslash character */
- while (p > buf && *p == '\\' && p[-1] != ':')
- *p-- = '\0';
-
- /*
- * Protect from CGI code disclosure.
- * This is very nasty hole. Windows happily opens files with
- * some garbage in the end of file name. So fopen("a.cgi ", "r")
- * actually opens "a.cgi", and does not return an error!
- */
- if (*p == 0x20 || /* No space at the end */
- (*p == 0x2e && p > buf) || /* No '.' but allow '.' as full path */
- *p == 0x2b || /* No '+' */
- (*p & ~0x7f)) { /* And generally no non-ascii chars */
- (void) fprintf(stderr, "Rejecting suspicious path: [%s]", buf);
- buf[0] = '\0';
- }
-
- (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
+ // Protect from CGI code disclosure.
+ // This is very nasty hole. Windows happily opens files with
+ // some garbage in the end of file name. So fopen("a.cgi ", "r")
+ // actually opens "a.cgi", and does not return an error!
+ if (*p == 0x20 || // No space at the end
+ (*p == 0x2e && p > buf) || // No '.' but allow '.' as full path
+ *p == 0x2b || // No '+'
+ (*p & ~0x7f)) { // And generally no non-ascii chars
+ (void) fprintf(stderr, "Rejecting suspicious path: [%s]", buf);
+ wbuf[0] = L'\0';
+ } else {
+ // Convert to Unicode and back. If doubly-converted string does not
+ // match the original, something is fishy, reject.
+ memset(wbuf, 0, wbuf_len * sizeof(wchar_t));
+ MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, (int) wbuf_len);
+ WideCharToMultiByte(CP_UTF8, 0, wbuf, (int) wbuf_len, buf2, sizeof(buf2),
+ NULL, NULL);
+ if (strcmp(buf, buf2) != 0) {
+ wbuf[0] = L'\0';
+ }
+ }
}
#if defined(_WIN32_WCE)
+static time_t time(time_t *ptime) {
+ time_t t;
+ SYSTEMTIME st;
+ FILETIME ft;
-static time_t
-time(time_t *ptime)
-{
- time_t t;
- SYSTEMTIME st;
- FILETIME ft;
-
- GetSystemTime(&st);
- SystemTimeToFileTime(&st, &ft);
- t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
-
- if (ptime != NULL)
- *ptime = t;
-
- return (t);
-}
-
-static time_t
-mktime(struct tm *ptm)
-{
- SYSTEMTIME st;
- FILETIME ft, lft;
-
- st.wYear = ptm->tm_year + 1900;
- st.wMonth = ptm->tm_mon + 1;
- st.wDay = ptm->tm_mday;
- st.wHour = ptm->tm_hour;
- st.wMinute = ptm->tm_min;
- st.wSecond = ptm->tm_sec;
- st.wMilliseconds = 0;
-
- SystemTimeToFileTime(&st, &ft);
- LocalFileTimeToFileTime(&ft, &lft);
- return (time_t)((MAKEUQUAD(lft.dwLowDateTime, lft.dwHighDateTime) -
- EPOCH_DIFF) / RATE_DIFF);
-}
-
-static struct tm *
-localtime(const time_t *ptime, struct tm *ptm)
-{
- int64_t t = ((int64_t)*ptime) * RATE_DIFF + EPOCH_DIFF;
- FILETIME ft, lft;
- SYSTEMTIME st;
- TIME_ZONE_INFORMATION tzinfo;
-
- if (ptm == NULL)
- return NULL;
-
- * (int64_t *) &ft = t;
- FileTimeToLocalFileTime(&ft, &lft);
- FileTimeToSystemTime(&lft, &st);
- ptm->tm_year = st.wYear - 1900;
- ptm->tm_mon = st.wMonth - 1;
- ptm->tm_wday = st.wDayOfWeek;
- ptm->tm_mday = st.wDay;
- ptm->tm_hour = st.wHour;
- ptm->tm_min = st.wMinute;
- ptm->tm_sec = st.wSecond;
- ptm->tm_yday = 0; // hope nobody uses this
- ptm->tm_isdst = ((GetTimeZoneInformation(&tzinfo) ==
- TIME_ZONE_ID_DAYLIGHT) ? 1 : 0);
-
- return ptm;
-}
-
-static size_t
-strftime(char *dst, size_t dst_size, const char *fmt, const struct tm *tm)
-{
- (void) snprintf(dst, dst_size, "implement strftime() for WinCE");
- return (0);
-}
-#endif
-
-static int
-mg_rename(const char* oldname, const char* newname)
-{
- wchar_t woldbuf[FILENAME_MAX];
- wchar_t wnewbuf[FILENAME_MAX];
+ GetSystemTime(&st);
+ SystemTimeToFileTime(&st, &ft);
+ t = SYS2UNIX_TIME(ft.dwLowDateTime, ft.dwHighDateTime);
- to_unicode(oldname, woldbuf, ARRAY_SIZE(woldbuf));
- to_unicode(newname, wnewbuf, ARRAY_SIZE(wnewbuf));
+ if (ptime != NULL) {
+ *ptime = t;
+ }
- return (MoveFileW(woldbuf, wnewbuf) ? 0 : -1);
+ return t;
}
+static struct tm *localtime(const time_t *ptime, struct tm *ptm) {
+ int64_t t = ((int64_t) *ptime) * RATE_DIFF + EPOCH_DIFF;
+ FILETIME ft, lft;
+ SYSTEMTIME st;
+ TIME_ZONE_INFORMATION tzinfo;
-static FILE *
-mg_fopen(const char *path, const char *mode)
-{
- wchar_t wbuf[FILENAME_MAX], wmode[20];
+ if (ptm == NULL) {
+ return NULL;
+ }
- to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
- MultiByteToWideChar(CP_UTF8, 0, mode, -1, wmode, ARRAY_SIZE(wmode));
+ * (int64_t *) &ft = t;
+ FileTimeToLocalFileTime(&ft, &lft);
+ FileTimeToSystemTime(&lft, &st);
+ ptm->tm_year = st.wYear - 1900;
+ ptm->tm_mon = st.wMonth - 1;
+ ptm->tm_wday = st.wDayOfWeek;
+ ptm->tm_mday = st.wDay;
+ ptm->tm_hour = st.wHour;
+ ptm->tm_min = st.wMinute;
+ ptm->tm_sec = st.wSecond;
+ ptm->tm_yday = 0; // hope nobody uses this
+ ptm->tm_isdst =
+ GetTimeZoneInformation(&tzinfo) == TIME_ZONE_ID_DAYLIGHT ? 1 : 0;
- return (_wfopen(wbuf, wmode));
+ return ptm;
}
-static int
-mg_stat(const char *path, struct mgstat *stp)
-{
- int ok = -1; /* Error */
- wchar_t wbuf[FILENAME_MAX];
- WIN32_FILE_ATTRIBUTE_DATA info;
-
- to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
-
- if (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0) {
- stp->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
- stp->mtime = SYS2UNIX_TIME(info.ftLastWriteTime.dwLowDateTime,
- info.ftLastWriteTime.dwHighDateTime);
- stp->is_directory =
- info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
- ok = 0; /* Success */
- }
+static struct tm *gmtime(const time_t *ptime, struct tm *ptm) {
+ // FIXME(lsm): fix this.
+ return localtime(ptime, ptm);
+}
- return (ok);
+static size_t strftime(char *dst, size_t dst_size, const char *fmt,
+ const struct tm *tm) {
+ (void) snprintf(dst, dst_size, "implement strftime() for WinCE");
+ return 0;
}
+#endif
-static int
-mg_remove(const char *path)
-{
- wchar_t wbuf[FILENAME_MAX];
+static int mg_rename(const char* oldname, const char* newname) {
+ wchar_t woldbuf[PATH_MAX];
+ wchar_t wnewbuf[PATH_MAX];
- to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
+ to_unicode(oldname, woldbuf, ARRAY_SIZE(woldbuf));
+ to_unicode(newname, wnewbuf, ARRAY_SIZE(wnewbuf));
- return (DeleteFileW(wbuf) ? 0 : -1);
+ return MoveFileW(woldbuf, wnewbuf) ? 0 : -1;
}
-static int
-mg_mkdir(const char *path, int mode)
-{
- char buf[FILENAME_MAX];
- wchar_t wbuf[FILENAME_MAX];
- mode = 0; /* Unused */
- mg_strlcpy(buf, path, sizeof(buf));
- fix_directory_separators(buf);
+static FILE *mg_fopen(const char *path, const char *mode) {
+ wchar_t wbuf[PATH_MAX], wmode[20];
- (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, sizeof(wbuf));
+ to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
+ MultiByteToWideChar(CP_UTF8, 0, mode, -1, wmode, ARRAY_SIZE(wmode));
- return (CreateDirectoryW(wbuf, NULL) ? 0 : -1);
+ return _wfopen(wbuf, wmode);
}
-/*
- * Implementation of POSIX opendir/closedir/readdir for Windows.
- */
-static DIR *
-opendir(const char *name)
-{
- DIR *dir = NULL;
- wchar_t wpath[FILENAME_MAX];
- DWORD attrs;
+static int mg_stat(const char *path, struct mgstat *stp) {
+ int ok = -1; // Error
+ wchar_t wbuf[PATH_MAX];
+ WIN32_FILE_ATTRIBUTE_DATA info;
- if (name == NULL) {
- SetLastError(ERROR_BAD_ARGUMENTS);
- } else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
- SetLastError(ERROR_NOT_ENOUGH_MEMORY);
- } else {
- to_unicode(name, wpath, ARRAY_SIZE(wpath));
- attrs = GetFileAttributesW(wpath);
- if (attrs != 0xFFFFFFFF &&
- ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
- (void) wcscat(wpath, L"\\*");
- dir->handle = FindFirstFileW(wpath, &dir->info);
- dir->result.d_name[0] = '\0';
- } else {
- free(dir);
- dir = NULL;
- }
- }
+ to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
- return (dir);
+ if (GetFileAttributesExW(wbuf, GetFileExInfoStandard, &info) != 0) {
+ stp->size = MAKEUQUAD(info.nFileSizeLow, info.nFileSizeHigh);
+ stp->mtime = SYS2UNIX_TIME(info.ftLastWriteTime.dwLowDateTime,
+ info.ftLastWriteTime.dwHighDateTime);
+ stp->is_directory =
+ info.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY;
+ ok = 0; // Success
+ }
+
+ return ok;
+}
+
+static int mg_remove(const char *path) {
+ wchar_t wbuf[PATH_MAX];
+ to_unicode(path, wbuf, ARRAY_SIZE(wbuf));
+ return DeleteFileW(wbuf) ? 0 : -1;
}
-static int
-closedir(DIR *dir)
-{
- int result = 0;
+static int mg_mkdir(const char *path, int mode) {
+ char buf[PATH_MAX];
+ wchar_t wbuf[PATH_MAX];
- if (dir != NULL) {
- if (dir->handle != INVALID_HANDLE_VALUE)
- result = FindClose(dir->handle) ? 0 : -1;
+ mode = 0; // Unused
+ mg_strlcpy(buf, path, sizeof(buf));
+ change_slashes_to_backslashes(buf);
- free(dir);
- } else {
- result = -1;
- SetLastError(ERROR_BAD_ARGUMENTS);
- }
+ (void) MultiByteToWideChar(CP_UTF8, 0, buf, -1, wbuf, sizeof(wbuf));
- return (result);
+ return CreateDirectoryW(wbuf, NULL) ? 0 : -1;
}
-struct dirent *
-readdir(DIR *dir)
-{
- struct dirent *result = 0;
+// Implementation of POSIX opendir/closedir/readdir for Windows.
+static DIR * opendir(const char *name) {
+ DIR *dir = NULL;
+ wchar_t wpath[PATH_MAX];
+ DWORD attrs;
- if (dir) {
- if (dir->handle != INVALID_HANDLE_VALUE) {
- result = &dir->result;
- (void) WideCharToMultiByte(CP_UTF8, 0,
- dir->info.cFileName, -1, result->d_name,
- sizeof(result->d_name), NULL, NULL);
+ if (name == NULL) {
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ } else if ((dir = (DIR *) malloc(sizeof(*dir))) == NULL) {
+ SetLastError(ERROR_NOT_ENOUGH_MEMORY);
+ } else {
+ to_unicode(name, wpath, ARRAY_SIZE(wpath));
+ attrs = GetFileAttributesW(wpath);
+ if (attrs != 0xFFFFFFFF &&
+ ((attrs & FILE_ATTRIBUTE_DIRECTORY) == FILE_ATTRIBUTE_DIRECTORY)) {
+ (void) wcscat(wpath, L"\\*");
+ dir->handle = FindFirstFileW(wpath, &dir->info);
+ dir->result.d_name[0] = '\0';
+ } else {
+ free(dir);
+ dir = NULL;
+ }
+ }
- if (!FindNextFileW(dir->handle, &dir->info)) {
- (void) FindClose(dir->handle);
- dir->handle = INVALID_HANDLE_VALUE;
- }
+ return dir;
+}
- } else {
- SetLastError(ERROR_FILE_NOT_FOUND);
- }
- } else {
- SetLastError(ERROR_BAD_ARGUMENTS);
- }
+static int closedir(DIR *dir) {
+ int result = 0;
- return (result);
+ if (dir != NULL) {
+ if (dir->handle != INVALID_HANDLE_VALUE)
+ result = FindClose(dir->handle) ? 0 : -1;
+
+ free(dir);
+ } else {
+ result = -1;
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ }
+
+ return result;
}
-#define set_close_on_exec(fd) /* No FD_CLOEXEC on Windows */
+static struct dirent *readdir(DIR *dir) {
+ struct dirent *result = 0;
-static int
-start_thread(struct mg_context *ctx, mg_thread_func_t func, void *param)
-{
- HANDLE hThread;
+ if (dir) {
+ if (dir->handle != INVALID_HANDLE_VALUE) {
+ result = &dir->result;
+ (void) WideCharToMultiByte(CP_UTF8, 0,
+ dir->info.cFileName, -1, result->d_name,
+ sizeof(result->d_name), NULL, NULL);
- ctx = NULL; /* Unused */
-
- hThread = CreateThread(NULL, 0,
- (LPTHREAD_START_ROUTINE) func, param, 0, NULL);
+ if (!FindNextFileW(dir->handle, &dir->info)) {
+ (void) FindClose(dir->handle);
+ dir->handle = INVALID_HANDLE_VALUE;
+ }
- if (hThread != NULL)
- (void) CloseHandle(hThread);
+ } else {
+ SetLastError(ERROR_FILE_NOT_FOUND);
+ }
+ } else {
+ SetLastError(ERROR_BAD_ARGUMENTS);
+ }
- return (hThread == NULL ? -1 : 0);
+ return result;
}
-static HANDLE
-dlopen(const char *dll_name, int flags)
-{
- wchar_t wbuf[FILENAME_MAX];
+#define set_close_on_exec(fd) // No FD_CLOEXEC on Windows
- flags = 0; /* Unused */
- to_unicode(dll_name, wbuf, ARRAY_SIZE(wbuf));
-
- return (LoadLibraryW(wbuf));
+static int start_thread(struct mg_context *ctx, mg_thread_func_t f, void *p) {
+ return _beginthread((void (__cdecl *)(void *)) f, 0, p) == -1L ? -1 : 0;
+}
+
+static HANDLE dlopen(const char *dll_name, int flags) {
+ wchar_t wbuf[PATH_MAX];
+ flags = 0; // Unused
+ to_unicode(dll_name, wbuf, ARRAY_SIZE(wbuf));
+ return LoadLibraryW(wbuf);
}
#if !defined(NO_CGI)
-static int
-kill(pid_t pid, int sig_num)
-{
- (void) TerminateProcess(pid, sig_num);
- (void) CloseHandle(pid);
- return (0);
-}
-
-static pid_t
-spawn_process(struct mg_connection *conn, const char *prog, char *envblk,
- char *envp[], int fd_stdin, int fd_stdout, const char *dir)
-{
- HANDLE me;
- char *p, *interp, cmdline[FILENAME_MAX], line[FILENAME_MAX];
- FILE *fp;
- STARTUPINFOA si;
- PROCESS_INFORMATION pi;
-
- envp = NULL; /* Unused */
-
- (void) memset(&si, 0, sizeof(si));
- (void) memset(&pi, 0, sizeof(pi));
-
- /* XXX redirect CGI errors to the error log file */
- si.cb = sizeof(si);
- si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
- si.wShowWindow = SW_HIDE;
-
- me = GetCurrentProcess();
- (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdin), me,
- &si.hStdInput, 0, TRUE, DUPLICATE_SAME_ACCESS);
- (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdout), me,
- &si.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
-
- /* If CGI file is a script, try to read the interpreter line */
- interp = conn->ctx->options[OPT_CGI_INTERPRETER];
- if (interp == NULL) {
- line[2] = '\0';
- (void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%c%s",
- dir, DIRSEP, prog);
- if ((fp = fopen(cmdline, "r")) != NULL) {
- (void) fgets(line, sizeof(line), fp);
- if (memcmp(line, "#!", 2) != 0)
- line[2] = '\0';
- /* Trim whitespaces from interpreter name */
- for (p = &line[strlen(line) - 1]; p > line &&
- isspace(*p); p--)
- *p = '\0';
- (void) fclose(fp);
- }
- interp = line + 2;
- }
-
- if ((p = (char *) strrchr(prog, '/')) != NULL)
- prog = p + 1;
-
- (void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%s%s",
- interp, interp[0] == '\0' ? "" : " ", prog);
-
- (void) mg_snprintf(conn, line, sizeof(line), "%s", dir);
- fix_directory_separators(line);
-
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: Running [%s]", __func__, cmdline));
- if (CreateProcessA(NULL, cmdline, NULL, NULL, TRUE,
- CREATE_NEW_PROCESS_GROUP, envblk, line, &si, &pi) == 0) {
- cry(conn, "%s: CreateProcess(%s): %d",
- __func__, cmdline, ERRNO);
- pi.hProcess = (pid_t) -1;
- } else {
- (void) close(fd_stdin);
- (void) close(fd_stdout);
- }
-
- (void) CloseHandle(si.hStdOutput);
- (void) CloseHandle(si.hStdInput);
- (void) CloseHandle(pi.hThread);
-
- return ((pid_t) pi.hProcess);
-}
-
-static int
-pipe(int *fds)
-{
- return (_pipe(fds, BUFSIZ, _O_BINARY));
-}
-#endif /* !NO_CGI */
-
-static int
-set_non_blocking_mode(struct mg_connection *conn, SOCKET sock)
-{
- unsigned long on = 1;
-
- conn = NULL; /* unused */
- return (ioctlsocket(sock, FIONBIO, &on));
+#define SIGKILL 0
+static int kill(pid_t pid, int sig_num) {
+ (void) TerminateProcess(pid, sig_num);
+ (void) CloseHandle(pid);
+ return 0;
+}
+
+static pid_t spawn_process(struct mg_connection *conn, const char *prog,
+ char *envblk, char *envp[], int fd_stdin,
+ int fd_stdout, const char *dir) {
+ HANDLE me;
+ char *p, *interp, cmdline[PATH_MAX], buf[PATH_MAX];
+ FILE *fp;
+ STARTUPINFOA si = { sizeof(si) };
+ PROCESS_INFORMATION pi = { 0 };
+
+ envp = NULL; // Unused
+
+ // TODO(lsm): redirect CGI errors to the error log file
+ si.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
+ si.wShowWindow = SW_HIDE;
+
+ me = GetCurrentProcess();
+ (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdin), me,
+ &si.hStdInput, 0, TRUE, DUPLICATE_SAME_ACCESS);
+ (void) DuplicateHandle(me, (HANDLE) _get_osfhandle(fd_stdout), me,
+ &si.hStdOutput, 0, TRUE, DUPLICATE_SAME_ACCESS);
+
+ // If CGI file is a script, try to read the interpreter line
+ interp = conn->ctx->config[CGI_INTERPRETER];
+ if (interp == NULL) {
+ buf[2] = '\0';
+ mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%c%s", dir, DIRSEP, prog);
+ if ((fp = fopen(cmdline, "r")) != NULL) {
+ (void) fgets(buf, sizeof(buf), fp);
+ if (buf[0] != '#' || buf[1] != '!') {
+ // First line does not start with "#!". Do not set interpreter.
+ buf[2] = '\0';
+ } else {
+ // Trim whitespaces in interpreter name
+ for (p = &buf[strlen(buf) - 1]; p > buf && isspace(*p); p--) {
+ *p = '\0';
+ }
+ }
+ (void) fclose(fp);
+ }
+ interp = buf + 2;
+ }
+
+ (void) mg_snprintf(conn, cmdline, sizeof(cmdline), "%s%s%s%c%s",
+ interp, interp[0] == '\0' ? "" : " ", dir, DIRSEP, prog);
+
+ DEBUG_TRACE(("Running [%s]", cmdline));
+ if (CreateProcessA(NULL, cmdline, NULL, NULL, TRUE,
+ CREATE_NEW_PROCESS_GROUP, envblk, dir, &si, &pi) == 0) {
+ cry(conn, "%s: CreateProcess(%s): %d",
+ __func__, cmdline, ERRNO);
+ pi.hProcess = (pid_t) -1;
+ } else {
+ (void) close(fd_stdin);
+ (void) close(fd_stdout);
+ }
+
+ (void) CloseHandle(si.hStdOutput);
+ (void) CloseHandle(si.hStdInput);
+ (void) CloseHandle(pi.hThread);
+
+ return (pid_t) pi.hProcess;
+}
+#endif // !NO_CGI
+
+static int set_non_blocking_mode(SOCKET sock) {
+ unsigned long on = 1;
+ return ioctlsocket(sock, FIONBIO, &on);
}
#else
+static int mg_stat(const char *path, struct mgstat *stp) {
+ struct stat st;
+ int ok;
-static int
-mg_stat(const char *path, struct mgstat *stp)
-{
- struct stat st;
- int ok;
-
- if (stat(path, &st) == 0) {
- ok = 0;
- stp->size = st.st_size;
- stp->mtime = st.st_mtime;
- stp->is_directory = S_ISDIR(st.st_mode);
- } else {
- ok = -1;
- }
+ if (stat(path, &st) == 0) {
+ ok = 0;
+ stp->size = st.st_size;
+ stp->mtime = st.st_mtime;
+ stp->is_directory = S_ISDIR(st.st_mode);
+ } else {
+ ok = -1;
+ }
- return (ok);
+ return ok;
}
-static void
-set_close_on_exec(int fd)
-{
- (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
+static void set_close_on_exec(int fd) {
+ (void) fcntl(fd, F_SETFD, FD_CLOEXEC);
}
-static int
-start_thread(struct mg_context *ctx, mg_thread_func_t func, void *param)
-{
- pthread_t thread_id;
- pthread_attr_t attr;
- int retval;
+static int start_thread(struct mg_context *ctx, mg_thread_func_t func,
+ void *param) {
+ pthread_t thread_id;
+ pthread_attr_t attr;
+ int retval;
- (void) pthread_attr_init(&attr);
- (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ (void) pthread_attr_init(&attr);
+ (void) pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+ // TODO(lsm): figure out why mongoose dies on Linux if next line is enabled
+ // (void) pthread_attr_setstacksize(&attr, sizeof(struct mg_connection) * 5);
- if ((retval = pthread_create(&thread_id, &attr, func, param)) != 0)
- cry(fc(ctx), "%s: %s", __func__, strerror(retval));
+ if ((retval = pthread_create(&thread_id, &attr, func, param)) != 0) {
+ cry(fc(ctx), "%s: %s", __func__, strerror(retval));
+ }
- return (retval);
+ return retval;
}
#ifndef NO_CGI
-static pid_t
-spawn_process(struct mg_connection *conn, const char *prog, char *envblk,
- char *envp[], int fd_stdin, int fd_stdout, const char *dir)
-{
- pid_t pid;
- const char *interp;
-
- envblk = NULL; /* unused */
-
- if ((pid = fork()) == -1) {
- /* Parent */
- send_error(conn, 500, http_500_error,
- "fork(): %s", strerror(ERRNO));
- } else if (pid == 0) {
- /* Child */
- if (chdir(dir) != 0) {
- cry(conn, "%s: chdir(%s): %s",
- __func__, dir, strerror(ERRNO));
- } else if (dup2(fd_stdin, 0) == -1) {
- cry(conn, "%s: dup2(stdin, %d): %s",
- __func__, fd_stdin, strerror(ERRNO));
- } else if (dup2(fd_stdout, 1) == -1) {
- cry(conn, "%s: dup2(stdout, %d): %s",
- __func__, fd_stdout, strerror(ERRNO));
- } else {
- /* If error file is specified, send errors there */
- if (conn->ctx->error_log != NULL)
- (void) dup2(fileno(conn->ctx->error_log), 2);
-
- (void) close(fd_stdin);
- (void) close(fd_stdout);
-
- /* Execute CGI program */
- interp = conn->ctx->options[OPT_CGI_INTERPRETER];
- if (interp == NULL) {
- (void) execle(prog, prog, NULL, envp);
- cry(conn, "%s: execle(%s): %s",
- __func__, prog, strerror(ERRNO));
- } else {
- (void) execle(interp, interp, prog, NULL, envp);
- cry(conn, "%s: execle(%s %s): %s",
- __func__, interp, prog, strerror(ERRNO));
- }
- }
- exit(EXIT_FAILURE);
- } else {
- /* Parent. Close stdio descriptors */
- (void) close(fd_stdin);
- (void) close(fd_stdout);
- }
-
- return (pid);
-}
-#endif /* !NO_CGI */
-
-static int
-set_non_blocking_mode(struct mg_connection *conn, SOCKET sock)
-{
- int flags, ok = -1;
-
- if ((flags = fcntl(sock, F_GETFL, 0)) == -1) {
- cry(conn, "%s: fcntl(F_GETFL): %d", __func__, ERRNO);
- } else if (fcntl(sock, F_SETFL, flags | O_NONBLOCK) != 0) {
- cry(conn, "%s: fcntl(F_SETFL): %d", __func__, ERRNO);
- } else {
- ok = 0; /* Success */
- }
-
- return (ok);
-}
-#endif /* _WIN32 */
-
-static void
-lock_option(struct mg_context *ctx, int opt_index)
-{
- if (pthread_mutex_lock(&ctx->opt_mutex[opt_index]) != 0)
- cry(fc(ctx), "pthread_mutex_lock: %s", strerror(ERRNO));
-}
-
-static void
-unlock_option(struct mg_context *ctx, int opt_index)
-{
- if (pthread_mutex_unlock(&ctx->opt_mutex[opt_index]) != 0)
- cry(fc(ctx), "pthread_mutex_unlock: %s", strerror(ERRNO));
-}
-
-/*
- * Write data to the IO channel - opened file descriptor, socket or SSL
- * descriptor. Return number of bytes written.
- */
-static int64_t
-push(FILE *fp, SOCKET sock, SSL *ssl, const char *buf, int64_t len)
-{
- int64_t sent;
- int n, k;
-
- sent = 0;
- while (sent < len) {
-
- /* How many bytes we send in this iteration */
- k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent);
-
- if (ssl != NULL) {
- n = SSL_write(ssl, buf + sent, k);
- } else if (fp != NULL) {
- n = fwrite(buf + sent, 1, k, fp);
- if (ferror(fp))
- n = -1;
- } else {
- n = send(sock, buf + sent, k, 0);
- }
-
- if (n < 0)
- break;
-
- sent += n;
- }
-
- return (sent);
-}
-
-/*
- * Read from IO channel - opened file descriptor, socket, or SSL descriptor.
- * Return number of bytes read.
- */
-static int
-pull(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int len)
-{
- int nread;
-
- if (ssl != NULL) {
- nread = SSL_read(ssl, buf, len);
- } else if (fp != NULL) {
- nread = fread(buf, 1, (size_t) len, fp);
- if (ferror(fp))
- nread = -1;
- } else {
- nread = recv(sock, buf, (size_t) len, 0);
- }
-
- return (nread);
-}
-
-int
-mg_write(struct mg_connection *conn, const void *buf, int len)
-{
- assert(len >= 0);
- return ((int) push(NULL, conn->client.sock, conn->ssl,
- (const char *) buf, (int64_t) len));
-}
-
-int
-mg_printf(struct mg_connection *conn, const char *fmt, ...)
-{
- char buf[MAX_REQUEST_SIZE];
- int len;
- va_list ap;
-
- va_start(ap, fmt);
- len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
- va_end(ap);
-
- return (mg_write(conn, buf, len));
-}
-
-/*
- * Return content length of the request, or -1 constant if
- * Content-Length header is not set.
- */
-static int64_t
-get_content_length(const struct mg_connection *conn)
-{
- const char *cl = mg_get_header(conn, "Content-Length");
- return (cl == NULL ? -1 : strtoll(cl, NULL, 10));
-}
-
-/*
- * URL-decode input buffer into destination buffer.
- * 0-terminate the destination buffer. Return the length of decoded data.
- * form-url-encoded data differs from URI encoding in a way that it
- * uses '+' as character for space, see RFC 1866 section 8.2.1
- * http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
- */
-static size_t
-url_decode(const char *src, size_t src_len, char *dst, size_t dst_len,
- bool_t is_form_url_encoded)
-{
- size_t i, j;
- int a, b;
-#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
-
- for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
- if (src[i] == '%' &&
- isxdigit(* (unsigned char *) (src + i + 1)) &&
- isxdigit(* (unsigned char *) (src + i + 2))) {
- a = tolower(* (unsigned char *) (src + i + 1));
- b = tolower(* (unsigned char *) (src + i + 2));
- dst[j] = ((HEXTOI(a) << 4) | HEXTOI(b)) & 0xff;
- i += 2;
- } else if (is_form_url_encoded && src[i] == '+') {
- dst[j] = ' ';
- } else {
- dst[j] = src[i];
- }
- }
-
- dst[j] = '\0'; /* Null-terminate the destination */
-
- return (j);
-}
-
-/*
- * Search for a form variable in a given buffer.
- * Semantic is the same as for mg_get_var().
- */
-static char *
-get_var(const char *name, const char *buf, size_t buf_len)
-{
- const char *p, *e, *s;
- char *val;
- size_t var_len, len;
-
- var_len = strlen(name);
- e = buf + buf_len;
- val = NULL;
-
- /* buf is "var1=val1&var2=val2...". Find variable first */
- for (p = buf; p + var_len < e; p++)
- if ((p == buf || p[-1] == '&') && p[var_len] == '=' &&
- !mg_strncasecmp(name, p, var_len)) {
-
- /* Point p to variable value */
- p += var_len + 1;
-
- /* Point s to the end of the value */
- s = (const char *) memchr(p, '&', e - p);
- if (s == NULL)
- s = e;
-
- /* Try to allocate the buffer */
- len = s - p;
- if ((val = (char *) malloc(len + 1)) != NULL)
- (void) url_decode(p, len, val, len + 1, TRUE);
- break;
- }
-
- return (val);
-}
-
-/*
- * Free the pointer returned by mg_get_var(). This is needed for languages
- * like python, to have an ability to free allocated data without
- * loading C runtime library and calling free().
- */
-void
-mg_free(char *data)
-{
- free(data);
-}
-
-/*
- * Return form data variable.
- * It can be specified in query string, or in the POST data.
- * Return NULL if the variable not found, or allocated 0-terminated value.
- * It is caller's responsibility to free the returned value.
- */
-char *
-mg_get_var(const struct mg_connection *conn, const char *name)
-{
- const struct mg_request_info *ri = &conn->request_info;
- char *v1, *v2;
-
- v1 = v2 = NULL;
-
- /* Look in both query_string and POST data */
- if (ri->query_string != NULL)
- v1 = get_var(name, ri->query_string, strlen(ri->query_string));
- if (ri->post_data_len > 0)
- v2 = get_var(name, ri->post_data, ri->post_data_len);
-
- /* If they both have queried variable, POST data wins */
- if (v1 != NULL && v2 != NULL)
- free(v1);
-
- return (v2 == NULL ? v1 : v2);
-}
-
-/*
- * Transform URI to the file name.
- */
-static void
-convert_uri_to_file_name(struct mg_connection *conn, const char *uri,
- char *buf, size_t buf_len)
-{
- struct mg_context *ctx = conn->ctx;
- struct vec uri_vec, path_vec;
- const char *list;
-
- lock_option(ctx, OPT_ROOT);
- mg_snprintf(conn, buf, buf_len, "%s%s", ctx->options[OPT_ROOT], uri);
- unlock_option(ctx, OPT_ROOT);
-
- /* If requested URI has aliased prefix, use alternate root */
- lock_option(ctx, OPT_ALIASES);
- list = ctx->options[OPT_ALIASES];
-
- while ((list = next_option(list, &uri_vec, &path_vec)) != NULL) {
- if (memcmp(uri, uri_vec.ptr, uri_vec.len) == 0) {
- (void) mg_snprintf(conn, buf, buf_len, "%.*s%s",
- path_vec.len, path_vec.ptr, uri + uri_vec.len);
- break;
- }
- }
- unlock_option(ctx, OPT_ALIASES);
+static pid_t spawn_process(struct mg_connection *conn, const char *prog,
+ char *envblk, char *envp[], int fd_stdin,
+ int fd_stdout, const char *dir) {
+ pid_t pid;
+ const char *interp;
+
+ envblk = NULL; // Unused
+
+ if ((pid = fork()) == -1) {
+ // Parent
+ send_http_error(conn, 500, http_500_error, "fork(): %s", strerror(ERRNO));
+ } else if (pid == 0) {
+ // Child
+ if (chdir(dir) != 0) {
+ cry(conn, "%s: chdir(%s): %s", __func__, dir, strerror(ERRNO));
+ } else if (dup2(fd_stdin, 0) == -1) {
+ cry(conn, "%s: dup2(%d, 0): %s", __func__, fd_stdin, strerror(ERRNO));
+ } else if (dup2(fd_stdout, 1) == -1) {
+ cry(conn, "%s: dup2(%d, 1): %s", __func__, fd_stdout, strerror(ERRNO));
+ } else {
+ (void) dup2(fd_stdout, 2);
+ (void) close(fd_stdin);
+ (void) close(fd_stdout);
+
+ // Execute CGI program. No need to lock: new process
+ interp = conn->ctx->config[CGI_INTERPRETER];
+ if (interp == NULL) {
+ (void) execle(prog, prog, NULL, envp);
+ cry(conn, "%s: execle(%s): %s", __func__, prog, strerror(ERRNO));
+ } else {
+ (void) execle(interp, interp, prog, NULL, envp);
+ cry(conn, "%s: execle(%s %s): %s", __func__, interp, prog,
+ strerror(ERRNO));
+ }
+ }
+ exit(EXIT_FAILURE);
+ } else {
+ // Parent. Close stdio descriptors
+ (void) close(fd_stdin);
+ (void) close(fd_stdout);
+ }
+
+ return pid;
+}
+#endif // !NO_CGI
+
+static int set_non_blocking_mode(SOCKET sock) {
+ int flags;
+
+ flags = fcntl(sock, F_GETFL, 0);
+ (void) fcntl(sock, F_SETFL, flags | O_NONBLOCK);
+
+ return 0;
+}
+#endif // _WIN32
+
+// Write data to the IO channel - opened file descriptor, socket or SSL
+// descriptor. Return number of bytes written.
+static int64_t push(FILE *fp, SOCKET sock, SSL *ssl, const char *buf,
+ int64_t len) {
+ int64_t sent;
+ int n, k;
+
+ sent = 0;
+ while (sent < len) {
+
+ // How many bytes we send in this iteration
+ k = len - sent > INT_MAX ? INT_MAX : (int) (len - sent);
+
+ if (ssl != NULL) {
+ n = SSL_write(ssl, buf + sent, k);
+ } else if (fp != NULL) {
+ n = fwrite(buf + sent, 1, (size_t) k, fp);
+ if (ferror(fp))
+ n = -1;
+ } else {
+ n = send(sock, buf + sent, (size_t) k, MSG_NOSIGNAL);
+ }
+
+ if (n < 0)
+ break;
+
+ sent += n;
+ }
+
+ return sent;
+}
+
+// Read from IO channel - opened file descriptor, socket, or SSL descriptor.
+// Return number of bytes read.
+static int pull(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int len) {
+ int nread;
+
+ if (ssl != NULL) {
+ nread = SSL_read(ssl, buf, len);
+ } else if (fp != NULL) {
+ // Use read() instead of fread(), because if we're reading from the CGI
+ // pipe, fread() may block until IO buffer is filled up. We cannot afford
+ // to block and must pass all read bytes immediately to the client.
+ nread = read(fileno(fp), buf, (size_t) len);
+ if (ferror(fp))
+ nread = -1;
+ } else {
+ nread = recv(sock, buf, (size_t) len, 0);
+ }
+
+ return nread;
+}
+
+int mg_read(struct mg_connection *conn, void *buf, size_t len) {
+ int n, buffered_len, nread;
+ const char *buffered;
+
+ assert((conn->content_len == -1 && conn->consumed_content == 0) ||
+ conn->consumed_content <= conn->content_len);
+ DEBUG_TRACE(("%p %zu %lld %lld", buf, len,
+ conn->content_len, conn->consumed_content));
+ nread = 0;
+ if (conn->consumed_content < conn->content_len) {
+
+ // Adjust number of bytes to read.
+ int64_t to_read = conn->content_len - conn->consumed_content;
+ if (to_read < (int64_t) len) {
+ len = (int) to_read;
+ }
+
+ // How many bytes of data we have buffered in the request buffer?
+ buffered = conn->buf + conn->request_len + conn->consumed_content;
+ buffered_len = conn->data_len - conn->request_len;
+ assert(buffered_len >= 0);
+
+ // Return buffered data back if we haven't done that yet.
+ if (conn->consumed_content < (int64_t) buffered_len) {
+ buffered_len -= (int) conn->consumed_content;
+ if (len < (size_t) buffered_len) {
+ buffered_len = len;
+ }
+ memcpy(buf, buffered, (size_t)buffered_len);
+ len -= buffered_len;
+ buf = (char *) buf + buffered_len;
+ conn->consumed_content += buffered_len;
+ nread = buffered_len;
+ }
+
+ // We have returned all buffered data. Read new data from the remote socket.
+ while (len > 0) {
+ n = pull(NULL, conn->client.sock, conn->ssl, (char *) buf, (int) len);
+ if (n <= 0) {
+ break;
+ }
+ buf = (char *) buf + n;
+ conn->consumed_content += n;
+ nread += n;
+ len -= n;
+ }
+ }
+ return nread;
+}
+
+int mg_write(struct mg_connection *conn, const void *buf, size_t len) {
+ return (int) push(NULL, conn->client.sock, conn->ssl, (const char *) buf,
+ (int64_t) len);
+}
+
+int mg_printf(struct mg_connection *conn, const char *fmt, ...) {
+ char buf[BUFSIZ];
+ int len;
+ va_list ap;
+
+ va_start(ap, fmt);
+ len = mg_vsnprintf(conn, buf, sizeof(buf), fmt, ap);
+ va_end(ap);
+
+ return mg_write(conn, buf, (size_t)len);
+}
+
+// URL-decode input buffer into destination buffer.
+// 0-terminate the destination buffer. Return the length of decoded data.
+// form-url-encoded data differs from URI encoding in a way that it
+// uses '+' as character for space, see RFC 1866 section 8.2.1
+// http://ftp.ics.uci.edu/pub/ietf/html/rfc1866.txt
+static size_t url_decode(const char *src, size_t src_len, char *dst,
+ size_t dst_len, int is_form_url_encoded) {
+ size_t i, j;
+ int a, b;
+#define HEXTOI(x) (isdigit(x) ? x - '0' : x - 'W')
+
+ for (i = j = 0; i < src_len && j < dst_len - 1; i++, j++) {
+ if (src[i] == '%' &&
+ isxdigit(* (const unsigned char *) (src + i + 1)) &&
+ isxdigit(* (const unsigned char *) (src + i + 2))) {
+ a = tolower(* (const unsigned char *) (src + i + 1));
+ b = tolower(* (const unsigned char *) (src + i + 2));
+ dst[j] = (char) ((HEXTOI(a) << 4) | HEXTOI(b));
+ i += 2;
+ } else if (is_form_url_encoded && src[i] == '+') {
+ dst[j] = ' ';
+ } else {
+ dst[j] = src[i];
+ }
+ }
+
+ dst[j] = '\0'; // Null-terminate the destination
+
+ return j;
+}
+
+// Scan given buffer and fetch the value of the given variable.
+// It can be specified in query string, or in the POST data.
+// Return NULL if the variable not found, or allocated 0-terminated value.
+// It is caller's responsibility to free the returned value.
+int mg_get_var(const char *buf, size_t buf_len, const char *name,
+ char *dst, size_t dst_len) {
+ const char *p, *e, *s;
+ size_t name_len, len;
+
+ name_len = strlen(name);
+ e = buf + buf_len;
+ len = -1;
+ dst[0] = '\0';
+
+ // buf is "var1=val1&var2=val2...". Find variable first
+ for (p = buf; p != NULL && p + name_len < e; p++) {
+ if ((p == buf || p[-1] == '&') && p[name_len] == '=' &&
+ !mg_strncasecmp(name, p, name_len)) {
+
+ // Point p to variable value
+ p += name_len + 1;
+
+ // Point s to the end of the value
+ s = (const char *) memchr(p, '&', (size_t)(e - p));
+ if (s == NULL) {
+ s = e;
+ }
+ assert(s >= p);
+
+ // Decode variable into destination buffer
+ if ((size_t) (s - p) < dst_len) {
+ len = url_decode(p, (size_t)(s - p), dst, dst_len, 1);
+ }
+ break;
+ }
+ }
+
+ return len;
+}
+
+int mg_get_cookie(const struct mg_connection *conn, const char *cookie_name,
+ char *dst, size_t dst_size) {
+ const char *s, *p, *end;
+ int name_len, len = -1;
+
+ dst[0] = '\0';
+ if ((s = mg_get_header(conn, "Cookie")) == NULL) {
+ return 0;
+ }
+
+ name_len = strlen(cookie_name);
+ end = s + strlen(s);
+
+ for (; (s = strstr(s, cookie_name)) != NULL; s += name_len)
+ if (s[name_len] == '=') {
+ s += name_len + 1;
+ if ((p = strchr(s, ' ')) == NULL)
+ p = end;
+ if (p[-1] == ';')
+ p--;
+ if (*s == '"' && p[-1] == '"' && p > s + 1) {
+ s++;
+ p--;
+ }
+ if ((size_t) (p - s) < dst_size) {
+ len = (p - s) + 1;
+ mg_strlcpy(dst, s, (size_t)len);
+ }
+ break;
+ }
+
+ return len;
+}
+
+static int convert_uri_to_file_name(struct mg_connection *conn, char *buf,
+ size_t buf_len, struct mgstat *st) {
+ struct vec a, b;
+ const char *rewrite, *uri = conn->request_info.uri;
+ char *p;
+ int match_len, stat_result;
+
+ buf_len--; // This is because memmove() for PATH_INFO may shift part
+ // of the path one byte on the right.
+ mg_snprintf(conn, buf, buf_len, "%s%s", conn->ctx->config[DOCUMENT_ROOT],
+ uri);
+
+ rewrite = conn->ctx->config[REWRITE];
+ while ((rewrite = next_option(rewrite, &a, &b)) != NULL) {
+ if ((match_len = match_prefix(a.ptr, a.len, uri)) > 0) {
+ mg_snprintf(conn, buf, buf_len, "%.*s%s", b.len, b.ptr, uri + match_len);
+ break;
+ }
+ }
+
+#if defined(_WIN32) && !defined(__SYMBIAN32__)
+ //change_slashes_to_backslashes(buf);
+#endif // _WIN32
+
+ if ((stat_result = mg_stat(buf, st)) != 0) {
+ // Support PATH_INFO for CGI scripts.
+ for (p = buf + strlen(buf); p > buf + 1; p--) {
+ if (*p == '/') {
+ *p = '\0';
+ if (match_prefix(conn->ctx->config[CGI_EXTENSIONS],
+ strlen(conn->ctx->config[CGI_EXTENSIONS]), buf) > 0 &&
+ (stat_result = mg_stat(buf, st)) == 0) {
+ // Shift PATH_INFO block one character right, e.g.
+ // "/x.cgi/foo/bar\x00" => "/x.cgi\x00/foo/bar\x00"
+ // conn->path_info is pointing to the local variable "path" declared
+ // in handle_request(), so PATH_INFO not valid after
+ // handle_request returns.
+ conn->path_info = p + 1;
+ memmove(p + 2, p + 1, strlen(p + 1) + 1); // +1 is for trailing \0
+ p[1] = '/';
+ break;
+ } else {
+ *p = '/';
+ stat_result = -1;
+ }
+ }
+ }
+ }
+
+ return stat_result;
+}
+
+static int sslize(struct mg_connection *conn, int (*func)(SSL *)) {
+ return (conn->ssl = SSL_new(conn->ctx->ssl_ctx)) != NULL &&
+ SSL_set_fd(conn->ssl, conn->client.sock) == 1 &&
+ func(conn->ssl) == 1;
+}
+
+// Check whether full request is buffered. Return:
+// -1 if request is malformed
+// 0 if request is not yet fully buffered
+// >0 actual request length, including last \r\n\r\n
+static int get_request_len(const char *buf, int buflen) {
+ const char *s, *e;
+ int len = 0;
+
+ DEBUG_TRACE(("buf: %p, len: %d", buf, buflen));
+ for (s = buf, e = s + buflen - 1; len <= 0 && s < e; s++)
+ // Control characters are not allowed but >=128 is.
+ if (!isprint(* (const unsigned char *) s) && *s != '\r' &&
+ *s != '\n' && * (const unsigned char *) s < 128) {
+ len = -1;
+ } else if (s[0] == '\n' && s[1] == '\n') {
+ len = (int) (s - buf) + 2;
+ } else if (s[0] == '\n' && &s[1] < e &&
+ s[1] == '\r' && s[2] == '\n') {
+ len = (int) (s - buf) + 3;
+ }
+
+ return len;
+}
+
+// Convert month to the month number. Return -1 on error, or month number
+static int get_month_index(const char *s) {
+ size_t i;
+
+ for (i = 0; i < ARRAY_SIZE(month_names); i++)
+ if (!strcmp(s, month_names[i]))
+ return (int) i;
+
+ return -1;
+}
+
+// Parse UTC date-time string, and return the corresponding time_t value.
+static time_t parse_date_string(const char *datetime) {
+ static const unsigned short days_before_month[] = {
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334
+ };
+ char month_str[32];
+ int second, minute, hour, day, month, year, leap_days, days;
+ time_t result = (time_t) 0;
+
+ if (((sscanf(datetime, "%d/%3s/%d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6) ||
+ (sscanf(datetime, "%d %3s %d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6) ||
+ (sscanf(datetime, "%*3s, %d %3s %d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6) ||
+ (sscanf(datetime, "%d-%3s-%d %d:%d:%d",
+ &day, month_str, &year, &hour, &minute, &second) == 6)) &&
+ year > 1970 &&
+ (month = get_month_index(month_str)) != -1) {
+ year -= 1970;
+ leap_days = year / 4 - year / 100 + year / 400;
+ days = year * 365 + days_before_month[month] + (day - 1) + leap_days;
+ result = days * 24 * 3600 + hour * 3600 + minute * 60 + second;
+ }
+
+ return result;
+}
+
+// Protect against directory disclosure attack by removing '..',
+// excessive '/' and '\' characters
+static void remove_double_dots_and_double_slashes(char *s) {
+ char *p = s;
+
+ while (*s != '\0') {
+ *p++ = *s++;
+ if (IS_DIRSEP_CHAR(s[-1])) {
+ // Skip all following slashes and backslashes
+ while (IS_DIRSEP_CHAR(s[0])) {
+ s++;
+ }
+
+ // Skip all double-dots
+ while (*s == '.' && s[1] == '.') {
+ s += 2;
+ }
+ }
+ }
+ *p = '\0';
+}
-#ifdef _WIN32
- fix_directory_separators(buf);
-#endif /* _WIN32 */
-
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: [%s] -> [%s]", __func__, uri, buf));
-}
-
-/*
- * Setup listening socket on given address, return socket.
- * Address format: [local_ip_address:]port_number
- */
-static SOCKET
-mg_open_listening_port(struct mg_context *ctx, const char *str, struct usa *usa)
-{
- SOCKET sock;
- int on = 1, a, b, c, d, port;
-
- /* MacOS needs that. If we do not zero it, bind() will fail. */
- (void) memset(usa, 0, sizeof(*usa));
-
- if (sscanf(str, "%d.%d.%d.%d:%d", &a, &b, &c, &d, &port) == 5) {
- /* IP address to bind to is specified */
- usa->u.sin.sin_addr.s_addr =
- htonl(((uint32_t)a << 24) | ((uint32_t)b << 16) | ((uint32_t)c << 8) | (uint32_t)d);
- } else if (sscanf(str, "%d", &port) == 1) {
- /* Only port number is specified. Bind to all addresses */
- usa->u.sin.sin_addr.s_addr = htonl(INADDR_ANY);
- } else {
- return (INVALID_SOCKET);
- }
-
- usa->len = sizeof(usa->u.sin);
- usa->u.sin.sin_family = AF_INET;
- usa->u.sin.sin_port = htons((uint16_t) port);
-
- if ((sock = socket(PF_INET, SOCK_STREAM, 6)) != INVALID_SOCKET &&
- setsockopt(sock, SOL_SOCKET, SO_REUSEADDR,
- (char *) &on, sizeof(on)) == 0 &&
- bind(sock, &usa->u.sa, usa->len) == 0 &&
- listen(sock, 20) == 0) {
- /* Success */
- set_close_on_exec(sock);
- } else {
- /* Error */
- cry(fc(ctx), "%s(%d): %s", __func__, port, strerror(ERRNO));
- if (sock != INVALID_SOCKET)
- (void) closesocket(sock);
- sock = INVALID_SOCKET;
- }
-
- return (sock);
-}
-
-/*
- * Check whether full request is buffered. Return:
- * -1 if request is malformed
- * 0 if request is not yet fully buffered
- * >0 actual request length, including last \r\n\r\n
- */
-static int
-get_request_len(const char *buf, size_t buflen)
-{
- const char *s, *e;
- int len = 0;
-
- for (s = buf, e = s + buflen - 1; len <= 0 && s < e; s++)
- /* Control characters are not allowed but >=128 is. */
- if (!isprint(* (unsigned char *) s) && *s != '\r' &&
- *s != '\n' && * (unsigned char *) s < 128)
- len = -1;
- else if (s[0] == '\n' && s[1] == '\n')
- len = (int) (s - buf) + 2;
- else if (s[0] == '\n' && &s[1] < e &&
- s[1] == '\r' && s[2] == '\n')
- len = (int) (s - buf) + 3;
-
- return (len);
-}
-
-/*
- * Convert month to the month number. Return -1 on error, or month number
- */
-static int
-montoi(const char *s)
-{
- size_t i;
-
- for (i = 0; i < sizeof(month_names) / sizeof(month_names[0]); i++)
- if (!strcmp(s, month_names[i]))
- return ((int) i);
-
- return (-1);
-}
-
-/*
- * Parse date-time string, and return the corresponding time_t value
- */
-static time_t
-date_to_epoch(const char *s)
-{
- time_t current_time;
- struct tm tm, *tmp;
- char mon[32];
- int sec, min, hour, mday, month, year;
-
- (void) memset(&tm, 0, sizeof(tm));
- sec = min = hour = mday = month = year = 0;
-
- if (((sscanf(s, "%d/%3s/%d %d:%d:%d",
- &mday, mon, &year, &hour, &min, &sec) == 6) ||
- (sscanf(s, "%d %3s %d %d:%d:%d",
- &mday, mon, &year, &hour, &min, &sec) == 6) ||
- (sscanf(s, "%*3s, %d %3s %d %d:%d:%d",
- &mday, mon, &year, &hour, &min, &sec) == 6) ||
- (sscanf(s, "%d-%3s-%d %d:%d:%d",
- &mday, mon, &year, &hour, &min, &sec) == 6)) &&
- (month = montoi(mon)) != -1) {
- tm.tm_mday = mday;
- tm.tm_mon = month;
- tm.tm_year = year;
- tm.tm_hour = hour;
- tm.tm_min = min;
- tm.tm_sec = sec;
- }
-
- if (tm.tm_year > 1900)
- tm.tm_year -= 1900;
- else if (tm.tm_year < 70)
- tm.tm_year += 100;
-
- /* Set Daylight Saving Time field */
- current_time = time(NULL);
- tmp = localtime(&current_time);
- tm.tm_isdst = tmp->tm_isdst;
-
- return (mktime(&tm));
-}
-
-/*
- * Protect against directory disclosure attack by removing '..',
- * excessive '/' and '\' characters
- */
-static void
-remove_double_dots_and_double_slashes(char *s)
-{
- char *p = s;
-
- while (*s != '\0') {
- *p++ = *s++;
- if (s[-1] == '/' || s[-1] == '\\') {
- /* Skip all following slashes and backslashes */
- while (*s == '/' || *s == '\\')
- s++;
-
- /* Skip all double-dots */
- while (*s == '.' && s[1] == '.')
- s += 2;
- }
- }
- *p = '\0';
-}
-
-/*
- * Built-in mime types
- */
static const struct {
- const char *extension;
- size_t ext_len;
- const char *mime_type;
- size_t mime_type_len;
-} mime_types[] = {
- {".html", 5, "text/html", 9},
- {".htm", 4, "text/html", 9},
- {".shtm", 5, "text/html", 9},
- {".shtml", 6, "text/html", 9},
- {".css", 4, "text/css", 8},
- {".js", 3, "application/x-javascript", 24},
- {".ico", 4, "image/x-icon", 12},
- {".gif", 4, "image/gif", 9},
- {".jpg", 4, "image/jpeg", 10},
- {".jpeg", 5, "image/jpeg", 10},
- {".png", 4, "image/png", 9},
- {".svg", 4, "image/svg+xml", 13},
- {".torrent", 8, "application/x-bittorrent", 24},
- {".wav", 4, "audio/x-wav", 11},
- {".mp3", 4, "audio/x-mp3", 11},
- {".mid", 4, "audio/mid", 9},
- {".m3u", 4, "audio/x-mpegurl", 15},
- {".ram", 4, "audio/x-pn-realaudio", 20},
- {".xml", 4, "text/xml", 8},
- {".xslt", 5, "application/xml", 15},
- {".ra", 3, "audio/x-pn-realaudio", 20},
- {".doc", 4, "application/msword", 19},
- {".exe", 4, "application/octet-stream", 24},
- {".zip", 4, "application/x-zip-compressed", 28},
- {".xls", 4, "application/excel", 17},
- {".tgz", 4, "application/x-tar-gz", 20},
- {".tar", 4, "application/x-tar", 17},
- {".gz", 3, "application/x-gunzip", 20},
- {".arj", 4, "application/x-arj-compressed", 28},
- {".rar", 4, "application/x-arj-compressed", 28},
- {".rtf", 4, "application/rtf", 15},
- {".pdf", 4, "application/pdf", 15},
- {".swf", 4, "application/x-shockwave-flash",29},
- {".mpg", 4, "video/mpeg", 10},
- {".mpeg", 5, "video/mpeg", 10},
- {".asf", 4, "video/x-ms-asf", 14},
- {".avi", 4, "video/x-msvideo", 15},
- {".bmp", 4, "image/bmp", 9},
- {NULL, 0, NULL, 0}
+ const char *extension;
+ size_t ext_len;
+ const char *mime_type;
+ size_t mime_type_len;
+} builtin_mime_types[] = {
+ {".html", 5, "text/html", 9},
+ {".htm", 4, "text/html", 9},
+ {".shtm", 5, "text/html", 9},
+ {".shtml", 6, "text/html", 9},
+ {".css", 4, "text/css", 8},
+ {".js", 3, "application/x-javascript", 24},
+ {".ico", 4, "image/x-icon", 12},
+ {".gif", 4, "image/gif", 9},
+ {".jpg", 4, "image/jpeg", 10},
+ {".jpeg", 5, "image/jpeg", 10},
+ {".png", 4, "image/png", 9},
+ {".svg", 4, "image/svg+xml", 13},
+ {".torrent", 8, "application/x-bittorrent", 24},
+ {".wav", 4, "audio/x-wav", 11},
+ {".mp3", 4, "audio/x-mp3", 11},
+ {".mid", 4, "audio/mid", 9},
+ {".m3u", 4, "audio/x-mpegurl", 15},
+ {".ram", 4, "audio/x-pn-realaudio", 20},
+ {".xml", 4, "text/xml", 8},
+ {".xslt", 5, "application/xml", 15},
+ {".ra", 3, "audio/x-pn-realaudio", 20},
+ {".doc", 4, "application/msword", 19},
+ {".exe", 4, "application/octet-stream", 24},
+ {".zip", 4, "application/x-zip-compressed", 28},
+ {".xls", 4, "application/excel", 17},
+ {".tgz", 4, "application/x-tar-gz", 20},
+ {".tar", 4, "application/x-tar", 17},
+ {".gz", 3, "application/x-gunzip", 20},
+ {".arj", 4, "application/x-arj-compressed", 28},
+ {".rar", 4, "application/x-arj-compressed", 28},
+ {".rtf", 4, "application/rtf", 15},
+ {".pdf", 4, "application/pdf", 15},
+ {".swf", 4, "application/x-shockwave-flash",29},
+ {".mpg", 4, "video/mpeg", 10},
+ {".mpeg", 5, "video/mpeg", 10},
+ {".mp4", 4, "video/mp4", 9},
+ {".m4v", 4, "video/x-m4v", 11},
+ {".asf", 4, "video/x-ms-asf", 14},
+ {".avi", 4, "video/x-msvideo", 15},
+ {".bmp", 4, "image/bmp", 9},
+ {NULL, 0, NULL, 0}
};
-/*
- * Look at the "path" extension and figure what mime type it has.
- * Store mime type in the vector.
- */
-static void
-get_mime_type(struct mg_context *ctx, const char *path, struct vec *vec)
-{
- struct vec ext_vec, mime_vec;
- const char *list, *ext;
- size_t i, path_len;
-
- path_len = strlen(path);
-
- /*
- * Scan user-defined mime types first, in case user wants to
- * override default mime types.
- */
- lock_option(ctx, OPT_MIME_TYPES);
- list = ctx->options[OPT_MIME_TYPES];
- while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
- /* ext now points to the path suffix */
- ext = path + path_len - ext_vec.len;
- if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
- *vec = mime_vec;
- unlock_option(ctx, OPT_MIME_TYPES);
- return;
- }
- }
- unlock_option(ctx, OPT_MIME_TYPES);
-
- /* Now scan built-in mime types */
- for (i = 0; mime_types[i].extension != NULL; i++) {
- ext = path + (path_len - mime_types[i].ext_len);
- if (path_len > mime_types[i].ext_len &&
- mg_strcasecmp(ext, mime_types[i].extension) == 0) {
- vec->ptr = mime_types[i].mime_type;
- vec->len = mime_types[i].mime_type_len;
- return;
- }
- }
-
- /* Nothing found. Fall back to text/plain */
- vec->ptr = "text/plain";
- vec->len = 10;
+// Look at the "path" extension and figure what mime type it has.
+// Store mime type in the vector.
+static void get_mime_type(struct mg_context *ctx, const char *path,
+ struct vec *vec) {
+ struct vec ext_vec, mime_vec;
+ const char *list, *ext;
+ size_t i, path_len;
+
+ path_len = strlen(path);
+
+ // Scan user-defined mime types first, in case user wants to
+ // override default mime types.
+ list = ctx->config[EXTRA_MIME_TYPES];
+ while ((list = next_option(list, &ext_vec, &mime_vec)) != NULL) {
+ // ext now points to the path suffix
+ ext = path + path_len - ext_vec.len;
+ if (mg_strncasecmp(ext, ext_vec.ptr, ext_vec.len) == 0) {
+ *vec = mime_vec;
+ return;
+ }
+ }
+
+ // Now scan built-in mime types
+ for (i = 0; builtin_mime_types[i].extension != NULL; i++) {
+ ext = path + (path_len - builtin_mime_types[i].ext_len);
+ if (path_len > builtin_mime_types[i].ext_len &&
+ mg_strcasecmp(ext, builtin_mime_types[i].extension) == 0) {
+ vec->ptr = builtin_mime_types[i].mime_type;
+ vec->len = builtin_mime_types[i].mime_type_len;
+ return;
+ }
+ }
+
+ // Nothing found. Fall back to "text/plain"
+ vec->ptr = "text/plain";
+ vec->len = 10;
}
#ifndef HAVE_MD5
typedef struct MD5Context {
- uint32_t buf[4];
- uint32_t bits[2];
- unsigned char in[64];
+ uint32_t buf[4];
+ uint32_t bits[2];
+ unsigned char in[64];
} MD5_CTX;
-#if __BYTE_ORDER == 1234
-#define byteReverse(buf, len) /* Nothing */
+#if defined(__BYTE_ORDER) && (__BYTE_ORDER == 1234)
+#define byteReverse(buf, len) // Do nothing
#else
-/*
- * Note: this code is harmless on little-endian machines.
- */
-static void
-byteReverse(unsigned char *buf, unsigned longs)
-{
- uint32_t t;
- do {
- t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
- ((unsigned) buf[1] << 8 | buf[0]);
- *(uint32_t *) buf = t;
- buf += 4;
- } while (--longs);
-}
-#endif /* __BYTE_ORDER */
-
-/* The four core functions - F1 is optimized somewhat */
-
-/* #define F1(x, y, z) (x & y | ~x & z) */
+static void byteReverse(unsigned char *buf, unsigned longs) {
+ uint32_t t;
+ do {
+ t = (uint32_t) ((unsigned) buf[3] << 8 | buf[2]) << 16 |
+ ((unsigned) buf[1] << 8 | buf[0]);
+ *(uint32_t *) buf = t;
+ buf += 4;
+ } while (--longs);
+}
+#endif
+
#define F1(x, y, z) (z ^ (x & (y ^ z)))
#define F2(x, y, z) F1(z, x, y)
#define F3(x, y, z) (x ^ y ^ z)
#define F4(x, y, z) (y ^ (x | ~z))
-/* This is the central step in the MD5 algorithm. */
#define MD5STEP(f, w, x, y, z, data, s) \
-( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
-
-/*
- * Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
- * initialization constants.
- */
-static void
-MD5Init(MD5_CTX *ctx)
-{
- ctx->buf[0] = 0x67452301;
- ctx->buf[1] = 0xefcdab89;
- ctx->buf[2] = 0x98badcfe;
- ctx->buf[3] = 0x10325476;
-
- ctx->bits[0] = 0;
- ctx->bits[1] = 0;
-}
-
-/*
- * The core of the MD5 algorithm, this alters an existing MD5 hash to
- * reflect the addition of 16 longwords of new data. MD5Update blocks
- * the data and converts bytes into longwords for this routine.
- */
-static void
-MD5Transform(uint32_t buf[4], uint32_t const in[16])
-{
- register uint32_t a, b, c, d;
-
- a = buf[0];
- b = buf[1];
- c = buf[2];
- d = buf[3];
-
- MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
- MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
- MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
- MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
- MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
- MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
- MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
- MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
- MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
- MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
- MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
- MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
- MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
- MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
- MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
- MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
-
- MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
- MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
- MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
- MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
- MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
- MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
- MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
- MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
- MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
- MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
- MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
- MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
- MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
- MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
- MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
- MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
-
- MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
- MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
- MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
- MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
- MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
- MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
- MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
- MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
- MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
- MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
- MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
- MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
- MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
- MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
- MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
- MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
-
- MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
- MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
- MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
- MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
- MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
- MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
- MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
- MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
- MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
- MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
- MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
- MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
- MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
- MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
- MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
- MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
-
- buf[0] += a;
- buf[1] += b;
- buf[2] += c;
- buf[3] += d;
-}
-
-/*
- * Update context to reflect the concatenation of another buffer full
- * of bytes.
- */
-static void
-MD5Update(MD5_CTX *ctx, unsigned char const *buf, uint32_t len)
-{
- uint32_t t;
-
- /* Update bitcount */
-
- t = ctx->bits[0];
- if ((ctx->bits[0] = t + (len << 3)) < t)
- ctx->bits[1]++; /* Carry from low to high */
- ctx->bits[1] += len >> 29;
-
- t = (t >> 3) & 0x3f; /* Bytes already in shsInfo->data */
-
- /* Handle any leading odd-sized chunks */
-
- if (t) {
- unsigned char *p = (unsigned char *) ctx->in + t;
-
- t = 64 - t;
- if (len < t) {
- memcpy(p, buf, len);
- return;
- }
- memcpy(p, buf, t);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- buf += t;
- len -= t;
- }
- /* Process data in 64-byte chunks */
-
- while (len >= 64) {
- memcpy(ctx->in, buf, 64);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- buf += 64;
- len -= 64;
- }
-
- /* Handle any remaining bytes of data. */
-
- memcpy(ctx->in, buf, len);
-}
-
-/*
- * Final wrapup - pad to 64-byte boundary with the bit pattern
- * 1 0* (64-bit count of bits processed, MSB-first)
- */
-static void
-MD5Final(unsigned char digest[16], MD5_CTX *ctx)
-{
- unsigned count;
- unsigned char *p;
-
- /* Compute number of bytes mod 64 */
- count = (ctx->bits[0] >> 3) & 0x3F;
-
- /* Set the first char of padding to 0x80. This is safe since there is
- always at least one byte free */
- p = ctx->in + count;
- *p++ = 0x80;
-
- /* Bytes of padding needed to make 64 bytes */
- count = 64 - 1 - count;
-
- /* Pad out to 56 mod 64 */
- if (count < 8) {
- /* Two lots of padding: Pad the first block to 64 bytes */
- memset(p, 0, count);
- byteReverse(ctx->in, 16);
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
-
- /* Now fill the next block with 56 bytes */
- memset(ctx->in, 0, 56);
- } else {
- /* Pad block to 56 bytes */
- memset(p, 0, count - 8);
- }
- byteReverse(ctx->in, 14);
-
- /* Append length in bits and transform */
- ((uint32_t *) ctx->in)[14] = ctx->bits[0];
- ((uint32_t *) ctx->in)[15] = ctx->bits[1];
-
- MD5Transform(ctx->buf, (uint32_t *) ctx->in);
- byteReverse((unsigned char *) ctx->buf, 4);
- memcpy(digest, ctx->buf, 16);
- memset((char *) ctx, 0, sizeof(ctx)); /* In case it's sensitive */
-}
-#endif /* !HAVE_MD5 */
-
-/*
- * Stringify binary data. Output buffer must be twice as big as input,
- * because each byte takes 2 bytes in string representation
- */
-static void
-bin2str(char *to, const unsigned char *p, size_t len)
-{
- static const char *hex = "0123456789abcdef";
-
- for (; len--; p++) {
- *to++ = hex[p[0] >> 4];
- *to++ = hex[p[0] & 0x0f];
- }
- *to = '\0';
-}
-
-/*
- * Return stringified MD5 hash for list of vectors.
- * buf must point to 33-bytes long buffer
- */
-static void
-mg_md5(char *buf, ...)
-{
- unsigned char hash[16];
- const char *p;
- va_list ap;
- MD5_CTX ctx;
-
- MD5Init(&ctx);
-
- va_start(ap, buf);
- while ((p = va_arg(ap, const char *)) != NULL)
- MD5Update(&ctx, (unsigned char *) p, strlen(p));
- va_end(ap);
-
- MD5Final(hash, &ctx);
- bin2str(buf, hash, sizeof(hash));
-}
-
-/*
- * Check the user's password, return 1 if OK
- */
-static bool_t
-check_password(const char *method, const char *ha1, const char *uri,
- const char *nonce, const char *nc, const char *cnonce,
- const char *qop, const char *response)
-{
- char ha2[32 + 1], expected_response[32 + 1];
-
- /* XXX Due to a bug in MSIE, we do not compare the URI */
- /* Also, we do not check for authentication timeout */
- if (/*strcmp(dig->uri, c->ouri) != 0 || */
- strlen(response) != 32 /*||
- now - strtoul(dig->nonce, NULL, 10) > 3600 */)
- return (FALSE);
-
- mg_md5(ha2, method, ":", uri, NULL);
- mg_md5(expected_response, ha1, ":", nonce, ":", nc,
- ":", cnonce, ":", qop, ":", ha2, NULL);
-
- return (!mg_strcasecmp(response, expected_response));
-}
-
-/*
- * Use the global passwords file, if specified by auth_gpass option,
- * or search for .htpasswd in the requested directory.
- */
-static FILE *
-open_auth_file(struct mg_connection *conn, const char *path)
-{
- struct mg_context *ctx = conn->ctx;
- char name[FILENAME_MAX];
- const char *p, *e;
- struct mgstat st;
- FILE *fp;
-
- if (ctx->options[OPT_AUTH_GPASSWD] != NULL) {
- /* Use global passwords file */
- fp = mg_fopen(ctx->options[OPT_AUTH_GPASSWD], "r");
- if (fp == NULL)
- cry(fc(ctx), "fopen(%s): %s",
- ctx->options[OPT_AUTH_GPASSWD], strerror(ERRNO));
- } else if (!mg_stat(path, &st) && st.is_directory) {
- (void) mg_snprintf(conn, name, sizeof(name), "%s%c%s",
- path, DIRSEP, PASSWORDS_FILE_NAME);
- fp = mg_fopen(name, "r");
- } else {
- /*
- * Try to find .htpasswd in requested directory.
- * Given the path, create the path to .htpasswd file
- * in the same directory. Find the right-most
- * directory separator character first. That would be the
- * directory name. If directory separator character is not
- * found, 'e' will point to 'p'.
- */
- for (p = path, e = p + strlen(p) - 1; e > p; e--)
- if (IS_DIRSEP_CHAR(*e))
- break;
-
- /*
- * Make up the path by concatenating directory name and
- * .htpasswd file name.
- */
- (void) mg_snprintf(conn, name, sizeof(name), "%.*s%c%s",
- (int) (e - p), p, DIRSEP, PASSWORDS_FILE_NAME);
- fp = mg_fopen(name, "r");
- }
-
- return (fp);
-}
-
-/*
- * Parsed Authorization: header
- */
+ ( w += f(x, y, z) + data, w = w<<s | w>>(32-s), w += x )
+
+// Start MD5 accumulation. Set bit count to 0 and buffer to mysterious
+// initialization constants.
+static void MD5Init(MD5_CTX *ctx) {
+ ctx->buf[0] = 0x67452301;
+ ctx->buf[1] = 0xefcdab89;
+ ctx->buf[2] = 0x98badcfe;
+ ctx->buf[3] = 0x10325476;
+
+ ctx->bits[0] = 0;
+ ctx->bits[1] = 0;
+}
+
+static void MD5Transform(uint32_t buf[4], uint32_t const in[16]) {
+ register uint32_t a, b, c, d;
+
+ a = buf[0];
+ b = buf[1];
+ c = buf[2];
+ d = buf[3];
+
+ MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+ MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+ MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+ MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+ MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+ MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+ MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+ MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+ MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+ MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+ MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+ MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+ MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+ MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+ MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+ MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+ MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+ MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+ MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+ MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+ MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+ MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+ MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+ MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+ MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+ MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+ MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+ MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+ MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+ MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+ MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+ MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+ MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+ MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+ MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+ MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+ MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+ MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+ MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+ MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+ MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+ MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+ MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+ MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+ MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+ MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+ MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+ MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+ MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+ MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+ MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+ MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+ MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+ MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+ MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+ MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+ MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+ MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+ MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+ MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+ MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+ MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+ MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+ MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+ buf[0] += a;
+ buf[1] += b;
+ buf[2] += c;
+ buf[3] += d;
+}
+
+static void MD5Update(MD5_CTX *ctx, unsigned char const *buf, unsigned len) {
+ uint32_t t;
+
+ t = ctx->bits[0];
+ if ((ctx->bits[0] = t + ((uint32_t) len << 3)) < t)
+ ctx->bits[1]++;
+ ctx->bits[1] += len >> 29;
+
+ t = (t >> 3) & 0x3f;
+
+ if (t) {
+ unsigned char *p = (unsigned char *) ctx->in + t;
+
+ t = 64 - t;
+ if (len < t) {
+ memcpy(p, buf, len);
+ return;
+ }
+ memcpy(p, buf, t);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ buf += t;
+ len -= t;
+ }
+
+ while (len >= 64) {
+ memcpy(ctx->in, buf, 64);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ buf += 64;
+ len -= 64;
+ }
+
+ memcpy(ctx->in, buf, len);
+}
+
+static void MD5Final(unsigned char digest[16], MD5_CTX *ctx) {
+ unsigned count;
+ unsigned char *p;
+
+ count = (ctx->bits[0] >> 3) & 0x3F;
+
+ p = ctx->in + count;
+ *p++ = 0x80;
+ count = 64 - 1 - count;
+ if (count < 8) {
+ memset(p, 0, count);
+ byteReverse(ctx->in, 16);
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ memset(ctx->in, 0, 56);
+ } else {
+ memset(p, 0, count - 8);
+ }
+ byteReverse(ctx->in, 14);
+
+ ((uint32_t *) ctx->in)[14] = ctx->bits[0];
+ ((uint32_t *) ctx->in)[15] = ctx->bits[1];
+
+ MD5Transform(ctx->buf, (uint32_t *) ctx->in);
+ byteReverse((unsigned char *) ctx->buf, 4);
+ memcpy(digest, ctx->buf, 16);
+ memset((char *) ctx, 0, sizeof(*ctx));
+}
+#endif // !HAVE_MD5
+
+// Stringify binary data. Output buffer must be twice as big as input,
+// because each byte takes 2 bytes in string representation
+static void bin2str(char *to, const unsigned char *p, size_t len) {
+ static const char *hex = "0123456789abcdef";
+
+ for (; len--; p++) {
+ *to++ = hex[p[0] >> 4];
+ *to++ = hex[p[0] & 0x0f];
+ }
+ *to = '\0';
+}
+
+// Return stringified MD5 hash for list of vectors. Buffer must be 33 bytes.
+void mg_md5(char *buf, ...) {
+ unsigned char hash[16];
+ const char *p;
+ va_list ap;
+ MD5_CTX ctx;
+
+ MD5Init(&ctx);
+
+ va_start(ap, buf);
+ while ((p = va_arg(ap, const char *)) != NULL) {
+ MD5Update(&ctx, (const unsigned char *) p, (unsigned) strlen(p));
+ }
+ va_end(ap);
+
+ MD5Final(hash, &ctx);
+ bin2str(buf, hash, sizeof(hash));
+}
+
+// Check the user's password, return 1 if OK
+static int check_password(const char *method, const char *ha1, const char *uri,
+ const char *nonce, const char *nc, const char *cnonce,
+ const char *qop, const char *response) {
+ char ha2[32 + 1], expected_response[32 + 1];
+
+ // Some of the parameters may be NULL
+ if (method == NULL || nonce == NULL || nc == NULL || cnonce == NULL ||
+ qop == NULL || response == NULL) {
+ return 0;
+ }
+
+ // NOTE(lsm): due to a bug in MSIE, we do not compare the URI
+ // TODO(lsm): check for authentication timeout
+ if (// strcmp(dig->uri, c->ouri) != 0 ||
+ strlen(response) != 32
+ // || now - strtoul(dig->nonce, NULL, 10) > 3600
+ ) {
+ return 0;
+ }
+
+ mg_md5(ha2, method, ":", uri, NULL);
+ mg_md5(expected_response, ha1, ":", nonce, ":", nc,
+ ":", cnonce, ":", qop, ":", ha2, NULL);
+
+ return mg_strcasecmp(response, expected_response) == 0;
+}
+
+// Use the global passwords file, if specified by auth_gpass option,
+// or search for .htpasswd in the requested directory.
+static FILE *open_auth_file(struct mg_connection *conn, const char *path) {
+ struct mg_context *ctx = conn->ctx;
+ char name[PATH_MAX];
+ const char *p, *e;
+ struct mgstat st;
+ FILE *fp;
+
+ if (ctx->config[GLOBAL_PASSWORDS_FILE] != NULL) {
+ // Use global passwords file
+ fp = mg_fopen(ctx->config[GLOBAL_PASSWORDS_FILE], "r");
+ if (fp == NULL)
+ cry(fc(ctx), "fopen(%s): %s",
+ ctx->config[GLOBAL_PASSWORDS_FILE], strerror(ERRNO));
+ } else if (!mg_stat(path, &st) && st.is_directory) {
+ (void) mg_snprintf(conn, name, sizeof(name), "%s%c%s",
+ path, DIRSEP, PASSWORDS_FILE_NAME);
+ fp = mg_fopen(name, "r");
+ } else {
+ // Try to find .htpasswd in requested directory.
+ for (p = path, e = p + strlen(p) - 1; e > p; e--)
+ if (IS_DIRSEP_CHAR(*e))
+ break;
+ (void) mg_snprintf(conn, name, sizeof(name), "%.*s%c%s",
+ (int) (e - p), p, DIRSEP, PASSWORDS_FILE_NAME);
+ fp = mg_fopen(name, "r");
+ }
+
+ return fp;
+}
+
+// Parsed Authorization header
struct ah {
- char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
+ char *user, *uri, *cnonce, *response, *qop, *nc, *nonce;
};
-static bool_t
-parse_auth_header(struct mg_connection *conn, char *buf, size_t buf_size,
- struct ah *ah)
-{
- char *name, *value, *s;
- const char *auth_header;
-
- if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
- mg_strncasecmp(auth_header, "Digest ", 7) != 0)
- return (FALSE);
-
- /* Make modifiable copy of the auth header */
- (void) mg_strlcpy(buf, auth_header + 7, buf_size);
-
- s = buf;
- (void) memset(ah, 0, sizeof(*ah));
-
- /* Gobble initial spaces */
- while (isspace(* (unsigned char *) s))
- s++;
-
- /* Parse authorization header */
- for (;;) {
- name = skip(&s, "=");
- value = skip(&s, ", ");
-
- if (*value == '"') {
- value++;
- value[strlen(value) - 1] = '\0';
- } else if (*value == '\0') {
- break;
- }
-
- if (!strcmp(name, "username")) {
- ah->user = value;
- } else if (!strcmp(name, "cnonce")) {
- ah->cnonce = value;
- } else if (!strcmp(name, "response")) {
- ah->response = value;
- } else if (!strcmp(name, "uri")) {
- ah->uri = value;
- } else if (!strcmp(name, "qop")) {
- ah->qop = value;
- } else if (!strcmp(name, "nc")) {
- ah->nc = value;
- } else if (!strcmp(name, "nonce")) {
- ah->nonce = value;
- }
- }
-
- /* CGI needs it as REMOTE_USER */
- if (ah->user != NULL)
- conn->request_info.remote_user = mg_strdup(ah->user);
-
- return (TRUE);
-}
-
-/*
- * Authorize against the opened passwords file. Return 1 if authorized.
- */
-static bool_t
-authorize(struct mg_connection *conn, FILE *fp)
-{
- struct ah ah;
- char line[256], f_user[256], domain[256], ha1[256],
- buf[MAX_REQUEST_SIZE];
-
- if (!parse_auth_header(conn, buf, sizeof(buf), &ah))
- return (FALSE);
-
- /* Loop over passwords file */
- while (fgets(line, sizeof(line), fp) != NULL) {
-
- if (sscanf(line, "%[^:]:%[^:]:%s", f_user, domain, ha1) != 3)
- continue;
-
- if (!strcmp(ah.user, f_user) &&
- !strcmp(domain, conn->ctx->options[OPT_AUTH_DOMAIN]))
- return (check_password(
- conn->request_info.request_method, ha1,
- ah.uri, ah.nonce, ah.nc, ah.cnonce,
- ah.qop, ah.response));
- }
-
- return (FALSE);
-}
-
-/*
- * Return TRUE if request is authorised, FALSE otherwise.
- */
-static bool_t
-check_authorization(struct mg_connection *conn, const char *path)
-{
- FILE *fp;
- char fname[FILENAME_MAX];
- struct vec uri_vec, filename_vec;
- const char *list;
- bool_t authorized;
-
- fp = NULL;
- authorized = TRUE;
-
- lock_option(conn->ctx, OPT_PROTECT);
- list = conn->ctx->options[OPT_PROTECT];
- while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
- if (!memcmp(conn->request_info.uri, uri_vec.ptr, uri_vec.len)) {
- (void) mg_snprintf(conn, fname, sizeof(fname), "%.*s",
- filename_vec.len, filename_vec.ptr);
- if ((fp = mg_fopen(fname, "r")) == NULL)
- cry(conn, "%s: cannot open %s: %s",
- __func__, fname, strerror(errno));
- break;
- }
- }
- unlock_option(conn->ctx, OPT_PROTECT);
-
- if (fp == NULL)
- fp = open_auth_file(conn, path);
-
- if (fp != NULL) {
- authorized = authorize(conn, fp);
- (void) fclose(fp);
- }
-
- return (authorized);
-}
-
-static void
-send_authorization_request(struct mg_connection *conn)
-{
- conn->request_info.status_code = 401;
- (void) mg_printf(conn,
- "HTTP/1.1 401 Unauthorized\r\n"
- "WWW-Authenticate: Digest qop=\"auth\", "
- "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
- conn->ctx->options[OPT_AUTH_DOMAIN], (unsigned long) time(NULL));
-}
-
-static bool_t
-is_authorized_for_put(struct mg_connection *conn)
-{
- FILE *fp;
- int ret = FALSE;
-
- if ((fp = mg_fopen(conn->ctx->options[OPT_AUTH_PUT], "r")) != NULL) {
- set_close_on_exec(fileno(fp));
- ret = authorize(conn, fp);
- (void) fclose(fp);
- }
-
- return (ret);
-}
-
-int
-mg_modify_passwords_file(struct mg_context *ctx, const char *fname,
- const char *user, const char *pass)
-{
- int found;
- char line[512], u[512], d[512], ha1[33], tmp[FILENAME_MAX];
- const char *domain;
- FILE *fp, *fp2;
-
- found = 0;
- fp = fp2 = NULL;
- domain = ctx->options[OPT_AUTH_DOMAIN];
-
- /* Regard empty password as no password - remove user record. */
- if (pass[0] == '\0')
- pass = NULL;
-
- (void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname);
-
- /* Create the file if does not exist */
- if ((fp = mg_fopen(fname, "a+")) != NULL)
- (void) fclose(fp);
-
- /* Open the given file and temporary file */
- if ((fp = mg_fopen(fname, "r")) == NULL) {
- cry(fc(ctx), "Cannot open %s: %s", fname, strerror(errno));
- return (0);
- } else if ((fp2 = mg_fopen(tmp, "w+")) == NULL) {
- cry(fc(ctx), "Cannot open %s: %s", tmp, strerror(errno));
- return (0);
- }
-
- /* Copy the stuff to temporary file */
- while (fgets(line, sizeof(line), fp) != NULL) {
-
- if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2)
- continue;
-
- if (!strcmp(u, user) && !strcmp(d, domain)) {
- found++;
- if (pass != NULL) {
- mg_md5(ha1, user, ":", domain, ":", pass, NULL);
- fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
- }
- } else {
- (void) fprintf(fp2, "%s", line);
- }
- }
-
- /* If new user, just add it */
- if (!found && pass != NULL) {
- mg_md5(ha1, user, ":", domain, ":", pass, NULL);
- (void) fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
- }
-
- /* Close files */
- (void) fclose(fp);
- (void) fclose(fp2);
-
- /* Put the temp file in place of real file */
- (void) mg_remove(fname);
- (void) mg_rename(tmp, fname);
-
- return (0);
+static int parse_auth_header(struct mg_connection *conn, char *buf,
+ size_t buf_size, struct ah *ah) {
+ char *name, *value, *s;
+ const char *auth_header;
+
+ if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
+ mg_strncasecmp(auth_header, "Digest ", 7) != 0) {
+ return 0;
+ }
+
+ // Make modifiable copy of the auth header
+ (void) mg_strlcpy(buf, auth_header + 7, buf_size);
+
+ s = buf;
+ (void) memset(ah, 0, sizeof(*ah));
+
+ // Parse authorization header
+ for (;;) {
+ // Gobble initial spaces
+ while (isspace(* (unsigned char *) s)) {
+ s++;
+ }
+ name = skip_quoted(&s, "=", " ", 0);
+ // Value is either quote-delimited, or ends at first comma or space.
+ if (s[0] == '\"') {
+ s++;
+ value = skip_quoted(&s, "\"", " ", '\\');
+ if (s[0] == ',') {
+ s++;
+ }
+ } else {
+ value = skip_quoted(&s, ", ", " ", 0); // IE uses commas, FF uses spaces
+ }
+ if (*name == '\0') {
+ break;
+ }
+
+ if (!strcmp(name, "username")) {
+ ah->user = value;
+ } else if (!strcmp(name, "cnonce")) {
+ ah->cnonce = value;
+ } else if (!strcmp(name, "response")) {
+ ah->response = value;
+ } else if (!strcmp(name, "uri")) {
+ ah->uri = value;
+ } else if (!strcmp(name, "qop")) {
+ ah->qop = value;
+ } else if (!strcmp(name, "nc")) {
+ ah->nc = value;
+ } else if (!strcmp(name, "nonce")) {
+ ah->nonce = value;
+ }
+ }
+
+ // CGI needs it as REMOTE_USER
+ if (ah->user != NULL) {
+ conn->request_info.remote_user = mg_strdup(ah->user);
+ } else {
+ return 0;
+ }
+
+ return 1;
+}
+
+// Authorize against the opened passwords file. Return 1 if authorized.
+static int authorize(struct mg_connection *conn, FILE *fp) {
+ struct ah ah;
+ char line[256], f_user[256], ha1[256], f_domain[256], buf[BUFSIZ];
+
+ if (!parse_auth_header(conn, buf, sizeof(buf), &ah)) {
+ return 0;
+ }
+
+ // Loop over passwords file
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ if (sscanf(line, "%[^:]:%[^:]:%s", f_user, f_domain, ha1) != 3) {
+ continue;
+ }
+
+ if (!strcmp(ah.user, f_user) &&
+ !strcmp(conn->ctx->config[AUTHENTICATION_DOMAIN], f_domain))
+ return check_password(
+ conn->request_info.request_method,
+ ha1, ah.uri, ah.nonce, ah.nc, ah.cnonce, ah.qop,
+ ah.response);
+ }
+
+ return 0;
+}
+
+// Return 1 if request is authorised, 0 otherwise.
+static int check_authorization(struct mg_connection *conn, const char *path) {
+ FILE *fp;
+ char fname[PATH_MAX];
+ struct vec uri_vec, filename_vec;
+ const char *list;
+ int authorized;
+
+ fp = NULL;
+ authorized = 1;
+
+ list = conn->ctx->config[PROTECT_URI];
+ while ((list = next_option(list, &uri_vec, &filename_vec)) != NULL) {
+ if (!memcmp(conn->request_info.uri, uri_vec.ptr, uri_vec.len)) {
+ (void) mg_snprintf(conn, fname, sizeof(fname), "%.*s",
+ filename_vec.len, filename_vec.ptr);
+ if ((fp = mg_fopen(fname, "r")) == NULL) {
+ cry(conn, "%s: cannot open %s: %s", __func__, fname, strerror(errno));
+ }
+ break;
+ }
+ }
+
+ if (fp == NULL) {
+ fp = open_auth_file(conn, path);
+ }
+
+ if (fp != NULL) {
+ authorized = authorize(conn, fp);
+ (void) fclose(fp);
+ }
+
+ return authorized;
+}
+
+static void send_authorization_request(struct mg_connection *conn) {
+ conn->request_info.status_code = 401;
+ (void) mg_printf(conn,
+ "HTTP/1.1 401 Unauthorized\r\n"
+ "Content-Length: 0\r\n"
+ "WWW-Authenticate: Digest qop=\"auth\", "
+ "realm=\"%s\", nonce=\"%lu\"\r\n\r\n",
+ conn->ctx->config[AUTHENTICATION_DOMAIN],
+ (unsigned long) time(NULL));
+}
+
+static int is_authorized_for_put(struct mg_connection *conn) {
+ FILE *fp;
+ int ret = 0;
+
+ fp = conn->ctx->config[PUT_DELETE_PASSWORDS_FILE] == NULL ? NULL :
+ mg_fopen(conn->ctx->config[PUT_DELETE_PASSWORDS_FILE], "r");
+
+ if (fp != NULL) {
+ ret = authorize(conn, fp);
+ (void) fclose(fp);
+ }
+
+ return ret;
+}
+
+int mg_modify_passwords_file(const char *fname, const char *domain,
+ const char *user, const char *pass) {
+ int found;
+ char line[512], u[512], d[512], ha1[33], tmp[PATH_MAX];
+ FILE *fp, *fp2;
+
+ found = 0;
+ fp = fp2 = NULL;
+
+ // Regard empty password as no password - remove user record.
+ if (pass != NULL && pass[0] == '\0') {
+ pass = NULL;
+ }
+
+ (void) snprintf(tmp, sizeof(tmp), "%s.tmp", fname);
+
+ // Create the file if does not exist
+ if ((fp = mg_fopen(fname, "a+")) != NULL) {
+ (void) fclose(fp);
+ }
+
+ // Open the given file and temporary file
+ if ((fp = mg_fopen(fname, "r")) == NULL) {
+ return 0;
+ } else if ((fp2 = mg_fopen(tmp, "w+")) == NULL) {
+ fclose(fp);
+ return 0;
+ }
+
+ // Copy the stuff to temporary file
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ if (sscanf(line, "%[^:]:%[^:]:%*s", u, d) != 2) {
+ continue;
+ }
+
+ if (!strcmp(u, user) && !strcmp(d, domain)) {
+ found++;
+ if (pass != NULL) {
+ mg_md5(ha1, user, ":", domain, ":", pass, NULL);
+ fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
+ }
+ } else {
+ (void) fprintf(fp2, "%s", line);
+ }
+ }
+
+ // If new user, just add it
+ if (!found && pass != NULL) {
+ mg_md5(ha1, user, ":", domain, ":", pass, NULL);
+ (void) fprintf(fp2, "%s:%s:%s\n", user, domain, ha1);
+ }
+
+ // Close files
+ (void) fclose(fp);
+ (void) fclose(fp2);
+
+ // Put the temp file in place of real file
+ (void) mg_remove(fname);
+ (void) mg_rename(tmp, fname);
+
+ return 1;
}
struct de {
- struct mg_connection *conn;
- char *file_name;
- struct mgstat st;
+ struct mg_connection *conn;
+ char *file_name;
+ struct mgstat st;
+};
+
+static void url_encode(const char *src, char *dst, size_t dst_len) {
+ static const char *dont_escape = "._-$,;~()";
+ static const char *hex = "0123456789abcdef";
+ const char *end = dst + dst_len - 1;
+
+ for (; *src != '\0' && dst < end; src++, dst++) {
+ if (isalnum(*(const unsigned char *) src) ||
+ strchr(dont_escape, * (const unsigned char *) src) != NULL) {
+ *dst = *src;
+ } else if (dst + 2 < end) {
+ dst[0] = '%';
+ dst[1] = hex[(* (const unsigned char *) src) >> 4];
+ dst[2] = hex[(* (const unsigned char *) src) & 0xf];
+ dst += 2;
+ }
+ }
+
+ *dst = '\0';
+}
+
+static void print_dir_entry(struct de *de) {
+ char size[64], mod[64], href[PATH_MAX];
+
+ if (de->st.is_directory) {
+ (void) mg_snprintf(de->conn, size, sizeof(size), "%s", "[DIRECTORY]");
+ } else {
+ // We use (signed) cast below because MSVC 6 compiler cannot
+ // convert unsigned __int64 to double. Sigh.
+ if (de->st.size < 1024) {
+ (void) mg_snprintf(de->conn, size, sizeof(size),
+ "%lu", (unsigned long) de->st.size);
+ } else if (de->st.size < 1024 * 1024) {
+ (void) mg_snprintf(de->conn, size, sizeof(size),
+ "%.1fk", (double) de->st.size / 1024.0);
+ } else if (de->st.size < 1024 * 1024 * 1024) {
+ (void) mg_snprintf(de->conn, size, sizeof(size),
+ "%.1fM", (double) de->st.size / 1048576);
+ } else {
+ (void) mg_snprintf(de->conn, size, sizeof(size),
+ "%.1fG", (double) de->st.size / 1073741824);
+ }
+ }
+ (void) strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M", localtime(&de->st.mtime));
+ url_encode(de->file_name, href, sizeof(href));
+ de->conn->num_bytes_sent += mg_printf(de->conn,
+ "<tr><td><a href=\"%s%s%s\">%s%s</a></td>"
+ "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
+ de->conn->request_info.uri, href, de->st.is_directory ? "/" : "",
+ de->file_name, de->st.is_directory ? "/" : "", mod, size);
+}
+
+// This function is called from send_directory() and used for
+// sorting directory entries by size, or name, or modification time.
+// On windows, __cdecl specification is needed in case if project is built
+// with __stdcall convention. qsort always requires __cdels callback.
+static int WINCDECL compare_dir_entries(const void *p1, const void *p2) {
+ const struct de *a = (const struct de *) p1, *b = (const struct de *) p2;
+ const char *query_string = a->conn->request_info.query_string;
+ int cmp_result = 0;
+
+ if (query_string == NULL) {
+ query_string = "na";
+ }
+
+ if (a->st.is_directory && !b->st.is_directory) {
+ return -1; // Always put directories on top
+ } else if (!a->st.is_directory && b->st.is_directory) {
+ return 1; // Always put directories on top
+ } else if (*query_string == 'n') {
+ cmp_result = strcmp(a->file_name, b->file_name);
+ } else if (*query_string == 's') {
+ cmp_result = a->st.size == b->st.size ? 0 :
+ a->st.size > b->st.size ? 1 : -1;
+ } else if (*query_string == 'd') {
+ cmp_result = a->st.mtime == b->st.mtime ? 0 :
+ a->st.mtime > b->st.mtime ? 1 : -1;
+ }
+
+ return query_string[1] == 'd' ? -cmp_result : cmp_result;
+}
+
+static int scan_directory(struct mg_connection *conn, const char *dir,
+ void *data, void (*cb)(struct de *, void *)) {
+ char path[PATH_MAX];
+ struct dirent *dp;
+ DIR *dirp;
+ struct de de;
+
+ if ((dirp = opendir(dir)) == NULL) {
+ return 0;
+ } else {
+ de.conn = conn;
+
+ while ((dp = readdir(dirp)) != NULL) {
+ // Do not show current dir and passwords file
+ if (!strcmp(dp->d_name, ".") ||
+ !strcmp(dp->d_name, "..") ||
+ !strcmp(dp->d_name, PASSWORDS_FILE_NAME))
+ continue;
+
+ mg_snprintf(conn, path, sizeof(path), "%s%c%s", dir, DIRSEP, dp->d_name);
+
+ // If we don't memset stat structure to zero, mtime will have
+ // garbage and strftime() will segfault later on in
+ // print_dir_entry(). memset is required only if mg_stat()
+ // fails. For more details, see
+ // http://code.google.com/p/mongoose/issues/detail?id=79
+ if (mg_stat(path, &de.st) != 0) {
+ memset(&de.st, 0, sizeof(de.st));
+ }
+ de.file_name = dp->d_name;
+
+ cb(&de, data);
+ }
+ (void) closedir(dirp);
+ }
+ return 1;
+}
+
+struct dir_scan_data {
+ struct de *entries;
+ int num_entries;
+ int arr_size;
};
-static void
-url_encode(const char *src, char *dst, size_t dst_len)
-{
- const char *dont_escape = "._-$,;~()";
- const char *hex = "0123456789abcdef";
- const char *end = dst + dst_len - 1;
-
- for (; *src != '\0' && dst < end; src++, dst++) {
- if (isalnum(*(unsigned char *) src) ||
- strchr(dont_escape, * (unsigned char *) src) != NULL) {
- *dst = *src;
- } else if (dst + 2 < end) {
- dst[0] = '%';
- dst[1] = hex[(* (unsigned char *) src) >> 4];
- dst[2] = hex[(* (unsigned char *) src) & 0xf];
- dst += 2;
- }
- }
-
- *dst = '\0';
-}
-
-/*
- * This function is called from send_directory() and prints out
- * single directory entry.
- */
-static void
-print_dir_entry(struct de *de)
-{
- char size[64], mod[64], href[FILENAME_MAX];
-
- if (de->st.is_directory) {
- (void) mg_snprintf(de->conn,
- size, sizeof(size), "%s", "[DIRECTORY]");
- } else {
- /*
- * We use (signed) cast below because MSVC 6 compiler cannot
- * convert unsigned __int64 to double. Sigh.
- */
- if (de->st.size < 1024)
- (void) mg_snprintf(de->conn, size, sizeof(size),
- "%lu", (unsigned long) de->st.size);
- else if (de->st.size < 0x100000 /* 1024 * 1024 */)
- (void) mg_snprintf(de->conn, size, sizeof(size),
- "%.1fk", (double) de->st.size / 1024.0);
- else if (de->st.size < 0x40000000 /* 1024 * 1024 * 1024 */)
- (void) mg_snprintf(de->conn, size, sizeof(size),
- "%.1fM", (double) de->st.size / 1048576);
- else
- (void) mg_snprintf(de->conn, size, sizeof(size),
- "%.1fG", (double) de->st.size / 1073741824);
- }
- (void) strftime(mod, sizeof(mod), "%d-%b-%Y %H:%M",
- localtime(&de->st.mtime));
-
- url_encode(de->file_name, href, sizeof(href));
-
- de->conn->num_bytes_sent += mg_printf(de->conn,
- "<tr><td><a href=\"%s%s%s\">%s%s</a></td>"
- "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
- de->conn->request_info.uri, href, de->st.is_directory ? "/" : "",
- de->file_name, de->st.is_directory ? "/" : "", mod, size);
-}
-
-/*
- * This function is called from send_directory() and used for
- * sorting direcotory entries by size, or name, or modification time.
- */
-static int
-compare_dir_entries(const void *p1, const void *p2)
-{
- const struct de *a = (struct de *) p1, *b = (struct de *) p2;
- const char *query_string = a->conn->request_info.query_string;
- int cmp_result = 0;
-
- if (query_string == NULL)
- query_string = "na";
-
- if (a->st.is_directory && !b->st.is_directory) {
- return (-1); /* Always put directories on top */
- } else if (!a->st.is_directory && b->st.is_directory) {
- return (1); /* Always put directories on top */
- } else if (*query_string == 'n') {
- cmp_result = strcmp(a->file_name, b->file_name);
- } else if (*query_string == 's') {
- cmp_result = a->st.size == b->st.size ? 0 :
- a->st.size > b->st.size ? 1 : -1;
- } else if (*query_string == 'd') {
- cmp_result = a->st.mtime == b->st.mtime ? 0 :
- a->st.mtime > b->st.mtime ? 1 : -1;
- }
-
- return (query_string[1] == 'd' ? -cmp_result : cmp_result);
-}
-
-/*
- * Send directory contents.
- */
-static void
-send_directory(struct mg_connection *conn, const char *dir)
-{
- struct dirent *dp;
- DIR *dirp;
- struct de *entries = NULL;
- char path[FILENAME_MAX];
- int i, sort_direction, num_entries = 0, arr_size = 128;
-
- if ((dirp = opendir(dir)) == NULL) {
- send_error(conn, 500, "Cannot open directory",
- "Error: opendir(%s): %s", path, strerror(ERRNO));
- return;
- }
-
- (void) mg_printf(conn, "%s",
- "HTTP/1.1 200 OK\r\n"
- "Connection: close\r\n"
- "Content-Type: text/html; charset=utf-8\r\n\r\n");
-
- sort_direction = conn->request_info.query_string != NULL &&
- conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
-
- while ((dp = readdir(dirp)) != NULL) {
-
- /* Do not show current dir and passwords file */
- if (!strcmp(dp->d_name, ".") ||
- !strcmp(dp->d_name, "..") ||
- !strcmp(dp->d_name, PASSWORDS_FILE_NAME))
- continue;
-
- if (entries == NULL || num_entries >= arr_size) {
- arr_size *= 2;
- entries = (struct de *) realloc(entries,
- arr_size * sizeof(entries[0]));
- }
-
- if (entries == NULL) {
- send_error(conn, 500, "Cannot open directory",
- "%s", "Error: cannot allocate memory");
- return;
- }
-
- (void) mg_snprintf(conn, path, sizeof(path), "%s%c%s",
- dir, DIRSEP, dp->d_name);
-
- /*
- * If we don't memset stat structure to zero, mtime will have
- * garbage and strftime() will segfault later on in
- * print_dir_entry(). memset is required only if mg_stat()
- * fails. For more details, see
- * http://code.google.com/p/mongoose/issues/detail?id=79
- */
- if (mg_stat(path, &entries[num_entries].st) != 0)
- (void) memset(&entries[num_entries].st, 0,
- sizeof(entries[num_entries].st));
-
- entries[num_entries].conn = conn;
- entries[num_entries].file_name = mg_strdup(dp->d_name);
- num_entries++;
- }
- (void) closedir(dirp);
-
- conn->num_bytes_sent += mg_printf(conn,
- "<html><head><title>Index of %s</title>"
- "<style>th {text-align: left;}</style></head>"
- "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
- "<tr><th><a href=\"?n%c\">Name</a></th>"
- "<th><a href=\"?d%c\">Modified</a></th>"
- "<th><a href=\"?s%c\">Size</a></th></tr>"
- "<tr><td colspan=\"3\"><hr></td></tr>",
- conn->request_info.uri, conn->request_info.uri,
- sort_direction, sort_direction, sort_direction);
-
- /* Print first entry - link to a parent directory */
- conn->num_bytes_sent += mg_printf(conn,
- "<tr><td><a href=\"%s%s\">%s</a></td>"
- "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
- conn->request_info.uri, "..", "Parent directory", "-", "-");
-
- /* Sort and print directory entries */
- qsort(entries, num_entries, sizeof(entries[0]), compare_dir_entries);
- for (i = 0; i < num_entries; i++) {
- print_dir_entry(&entries[i]);
- free(entries[i].file_name);
- }
- free(entries);
-
- conn->num_bytes_sent += mg_printf(conn, "%s", "</table></body></html>");
- conn->request_info.status_code = 200;
-}
-
-/*
- * Send len bytes from the opened file to the client.
- */
-static void
-send_opened_file_stream(struct mg_connection *conn, FILE *fp, int64_t len)
-{
- char buf[BUFSIZ];
- int to_read, num_read, num_written;
-
- while (len > 0) {
- /* Calculate how much to read from the file in the buffer */
- to_read = sizeof(buf);
- if ((int64_t) to_read > len)
- to_read = (int) len;
-
- /* Read from file, exit the loop on error */
- if ((num_read = fread(buf, 1, to_read, fp)) == 0)
- break;
-
- /* Send read bytes to the client, exit the loop on error */
- if ((num_written = mg_write(conn, buf, num_read)) != num_read)
- break;
-
- /* Both read and were successful, adjust counters */
- conn->num_bytes_sent += num_written;
- len -= num_written;
- }
-}
-
-/*
- * Send regular file contents.
- */
-static void
-send_file(struct mg_connection *conn, const char *path, struct mgstat *stp)
-{
- char date[64], lm[64], etag[64], range[64];
- const char *fmt = "%a, %d %b %Y %H:%M:%S %Z", *msg = "OK", *hdr;
- time_t curtime = time(NULL);
- int64_t cl, r1, r2;
- struct vec mime_vec;
- FILE *fp;
- int n;
-
- get_mime_type(conn->ctx, path, &mime_vec);
- cl = stp->size;
- conn->request_info.status_code = 200;
- range[0] = '\0';
-
- if ((fp = mg_fopen(path, "rb")) == NULL) {
- send_error(conn, 500, http_500_error,
- "fopen(%s): %s", path, strerror(ERRNO));
- return;
- }
- set_close_on_exec(fileno(fp));
-
- /* If Range: header specified, act accordingly */
- r1 = r2 = 0;
- hdr = mg_get_header(conn, "Range");
- if (hdr != NULL && (n = sscanf(hdr,
- "bytes=%" INT64_FMT "-%" INT64_FMT, &r1, &r2)) > 0) {
- conn->request_info.status_code = 206;
- (void) fseeko(fp, (off_t) r1, SEEK_SET);
- cl = n == 2 ? r2 - r1 + 1: cl - r1;
- (void) mg_snprintf(conn, range, sizeof(range),
- "Content-Range: bytes "
- "%" INT64_FMT "-%"
- INT64_FMT "/%" INT64_FMT "\r\n",
- r1, r1 + cl - 1, stp->size);
- msg = "Partial Content";
- }
-
- /* Prepare Etag, Date, Last-Modified headers */
- (void) strftime(date, sizeof(date), fmt, localtime(&curtime));
- (void) strftime(lm, sizeof(lm), fmt, localtime(&stp->mtime));
- (void) mg_snprintf(conn, etag, sizeof(etag), "%lx.%lx",
- (unsigned long) stp->mtime, (unsigned long) stp->size);
-
- (void) mg_printf(conn,
- "HTTP/1.1 %d %s\r\n"
- "Date: %s\r\n"
- "Last-Modified: %s\r\n"
- "Etag: \"%s\"\r\n"
- "Content-Type: %.*s\r\n"
- "Content-Length: %" INT64_FMT "\r\n"
- "Connection: close\r\n"
- "Accept-Ranges: bytes\r\n"
- "%s\r\n",
- conn->request_info.status_code, msg, date, lm, etag,
- mime_vec.len, mime_vec.ptr, cl, range);
-
- if (strcmp(conn->request_info.request_method, "HEAD") != 0)
- send_opened_file_stream(conn, fp, cl);
- (void) fclose(fp);
-}
-
-/*
- * Parse HTTP headers from the given buffer, advance buffer to the point
- * where parsing stopped.
- */
-static void
-parse_http_headers(char **buf, struct mg_request_info *ri)
-{
- int i;
-
- for (i = 0; i < (int) ARRAY_SIZE(ri->http_headers); i++) {
- ri->http_headers[i].name = skip(buf, ": ");
- ri->http_headers[i].value = skip(buf, "\r\n");
- if (ri->http_headers[i].name[0] == '\0')
- break;
- ri->num_headers = i + 1;
- }
-}
-
-static bool_t
-is_valid_http_method(const char *method)
-{
- return (!strcmp(method, "GET") ||
- !strcmp(method, "POST") ||
- !strcmp(method, "HEAD") ||
- !strcmp(method, "PUT") ||
- !strcmp(method, "DELETE"));
-}
-
-/*
- * Parse HTTP request, fill in mg_request_info structure.
- */
-static bool_t
-parse_http_request(char *buf, struct mg_request_info *ri, const struct usa *usa)
-{
- int success_code = FALSE;
-
- ri->request_method = skip(&buf, " ");
- ri->uri = skip(&buf, " ");
- ri->http_version = skip(&buf, "\r\n");
-
- if (is_valid_http_method(ri->request_method) &&
- ri->uri[0] == '/' &&
- strncmp(ri->http_version, "HTTP/", 5) == 0) {
- ri->http_version += 5; /* Skip "HTTP/" */
- parse_http_headers(&buf, ri);
- ri->remote_port = ntohs(usa->u.sin.sin_port);
- (void) memcpy(&ri->remote_ip, &usa->u.sin.sin_addr.s_addr, 4);
- ri->remote_ip = ntohl(ri->remote_ip);
- success_code = TRUE;
- }
-
- return (success_code);
-}
-
-/*
- * Keep reading the input (either opened file descriptor fd, or socket sock,
- * or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
- * buffer (which marks the end of HTTP request). Buffer buf may already
- * have some data. The length of the data is stored in nread.
- * Upon every read operation, increase nread by the number of bytes read.
- */
-static int
-read_request(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int bufsiz, int *nread)
-{
- int n, request_len;
-
- request_len = 0;
- while (*nread < bufsiz && request_len == 0) {
- n = pull(fp, sock, ssl, buf + *nread, bufsiz - *nread);
- if (n <= 0) {
- break;
- } else {
- *nread += n;
- request_len = get_request_len(buf, (size_t) *nread);
- }
- }
-
- return (request_len);
-}
-
-/*
- * For given directory path, substitute it to valid index file.
- * Return 0 if index file has been found, -1 if not found.
- * If the file is found, it's stats is returned in stp.
- */
-static bool_t
-substitute_index_file(struct mg_connection *conn,
- char *path, size_t path_len, struct mgstat *stp)
-{
- const char *list;
- struct mgstat st;
- struct vec filename_vec;
- size_t n;
- bool_t found;
-
- n = strlen(path);
-
- /*
- * The 'path' given to us points to the directory. Remove all trailing
- * directory separator characters from the end of the path, and
- * then append single directory separator character.
- */
- while (n > 0 && IS_DIRSEP_CHAR(path[n - 1]))
- n--;
- path[n] = DIRSEP;
-
- /*
- * Traverse index files list. For each entry, append it to the given
- * path and see if the file exists. If it exists, break the loop
- */
- lock_option(conn->ctx, OPT_INDEX_FILES);
- list = conn->ctx->options[OPT_INDEX_FILES];
- found = FALSE;
-
- while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
-
- /* Ignore too long entries that may overflow path buffer */
- if (filename_vec.len > path_len - n)
- continue;
-
- /* Prepare full path to the index file */
- (void) mg_strlcpy(path + n + 1,
- filename_vec.ptr, filename_vec.len + 1);
-
- /* Does it exist ? */
- if (mg_stat(path, &st) == 0) {
- /* Yes it does, break the loop */
- *stp = st;
- found = TRUE;
- break;
- }
- }
- unlock_option(conn->ctx, OPT_INDEX_FILES);
-
- /* If no index file exists, restore directory path */
- if (found == FALSE)
- path[n] = '\0';
-
- return (found);
-}
-
-static void
-remove_callback(struct mg_context *ctx,
- const char *uri_regex, int status_code, bool_t is_auth)
-{
- struct callback *cb;
- int i;
-
- for (i = 0; i < ctx->num_callbacks; i++) {
- cb = ctx->callbacks + i;
- if ((uri_regex != NULL && cb->uri_regex != NULL &&
- ((is_auth && cb->is_auth) || (!is_auth && !cb->is_auth)) &&
- !strcmp(uri_regex, cb->uri_regex)) || (uri_regex == NULL &&
- (cb->status_code == 0 ||
- cb->status_code == status_code))) {
- (void) memmove(cb, cb + 1,
- (char *) (ctx->callbacks + ctx->num_callbacks) -
- (char *) (cb + 1));
- break;
- }
- }
-}
-
-static void
-add_callback(struct mg_context *ctx, const char *uri_regex, int status_code,
- mg_callback_t func, bool_t is_auth, void *user_data)
-{
- struct callback *cb;
-
- pthread_mutex_lock(&ctx->bind_mutex);
- if (func == NULL) {
- remove_callback(ctx, uri_regex, status_code, is_auth);
- } else if (ctx->num_callbacks >= (int) ARRAY_SIZE(ctx->callbacks) - 1) {
- cry(fc(ctx), "Too many callbacks! Increase MAX_CALLBACKS.");
- } else {
- cb = &ctx->callbacks[ctx->num_callbacks];
- cb->uri_regex = uri_regex ? mg_strdup(uri_regex) : NULL;
- cb->func = func;
- cb->is_auth = is_auth;
- cb->status_code = status_code;
- cb->user_data = user_data;
- ctx->num_callbacks++;
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: uri %s code %d",
- __func__, uri_regex ? uri_regex : "NULL", status_code));
- }
- pthread_mutex_unlock(&ctx->bind_mutex);
-}
-
-void
-mg_set_uri_callback(struct mg_context *ctx, const char *uri_regex,
- mg_callback_t func, void *user_data)
-{
- assert(uri_regex != NULL);
- add_callback(ctx, uri_regex, -1, func, FALSE, user_data);
-}
-
-void
-mg_set_error_callback(struct mg_context *ctx, int error_code,
- mg_callback_t func, void *user_data)
-{
- assert(error_code >= 0 && error_code < 1000);
- add_callback(ctx, NULL, error_code, func, FALSE, user_data);
-}
-
-void
-mg_set_auth_callback(struct mg_context *ctx, const char *uri_regex,
- mg_callback_t func, void *user_data)
-{
- assert(uri_regex != NULL);
- add_callback(ctx, uri_regex, -1, func, TRUE, user_data);
-}
-
-/*
- * Return True if we should reply 304 Not Modified.
- */
-static bool_t
-is_not_modified(const struct mg_connection *conn, const struct mgstat *stp)
-{
- const char *ims = mg_get_header(conn, "If-Modified-Since");
- return (ims != NULL && stp->mtime < date_to_epoch(ims));
-}
-
-static bool_t
-append_chunk(struct mg_request_info *ri, FILE *fp, const char *buf, int len)
-{
- bool_t ret_code = TRUE;
-
- if (fp == NULL) {
- /* TODO: check for NULL here */
- ri->post_data = (char *) realloc(ri->post_data,
- ri->post_data_len + len);
- (void) memcpy(ri->post_data + ri->post_data_len, buf, len);
- ri->post_data_len += len;
- } else if (push(fp, INVALID_SOCKET,
- NULL, buf, (int64_t) len) != (int64_t) len) {
- ret_code = FALSE;
- }
-
- return (ret_code);
-}
-
-static bool_t
-handle_request_body(struct mg_connection *conn, FILE *fp)
-{
- struct mg_request_info *ri = &conn->request_info;
- const char *expect, *tmp;
- int64_t content_len;
- char buf[BUFSIZ];
- int to_read, nread, already_read;
- bool_t success_code = FALSE;
-
- content_len = get_content_length(conn);
- expect = mg_get_header(conn, "Expect");
-
- if (content_len == -1) {
- send_error(conn, 411, "Length Required", "");
- } else if (expect != NULL && mg_strcasecmp(expect, "100-continue")) {
- send_error(conn, 417, "Expectation Failed", "");
- } else {
- if (expect != NULL)
- (void) mg_printf(conn, "HTTP/1.1 100 Continue\r\n\r\n");
-
- already_read = ri->post_data_len;
- assert(already_read >= 0);
-
- if (content_len <= (int64_t) already_read) {
- ri->post_data_len = (int) content_len;
- /*
- * If fp is NULL, this is embedded mode, and we do not
- * have to do anything: POST data is already there,
- * no need to allocate a buffer and copy it in.
- * If fp != NULL, we need to write the data.
- */
- success_code = fp == NULL || (push(fp, INVALID_SOCKET,
- NULL, ri->post_data, content_len) == content_len) ?
- TRUE : FALSE;
- } else {
-
- if (fp == NULL) {
- conn->free_post_data = TRUE;
- tmp = ri->post_data;
- /* +1 in case if already_read == 0 */
- ri->post_data = (char*)malloc(already_read + 1);
- (void) memcpy(ri->post_data, tmp, already_read);
- } else {
- (void) push(fp, INVALID_SOCKET, NULL,
- ri->post_data, (int64_t) already_read);
- }
-
- content_len -= already_read;
-
- while (content_len > 0) {
- to_read = sizeof(buf);
- if ((int64_t) to_read > content_len)
- to_read = (int) content_len;
- nread = pull(NULL, conn->client.sock,
- conn->ssl, buf, to_read);
- if (nread <= 0)
- break;
- if (!append_chunk(ri, fp, buf, nread))
- break;
- content_len -= nread;
- }
- success_code = content_len == 0 ? TRUE : FALSE;
- }
-
- /* Each error code path in this function must send an error */
- if (success_code != TRUE)
- send_error(conn, 577, http_500_error,
- "%s", "Error handling body data");
- }
-
- return (success_code);
+static void dir_scan_callback(struct de *de, void *data) {
+ struct dir_scan_data *dsd = (struct dir_scan_data *) data;
+
+ if (dsd->entries == NULL || dsd->num_entries >= dsd->arr_size) {
+ dsd->arr_size *= 2;
+ dsd->entries = (struct de *) realloc(dsd->entries, dsd->arr_size *
+ sizeof(dsd->entries[0]));
+ }
+ if (dsd->entries == NULL) {
+ // TODO(lsm): propagate an error to the caller
+ dsd->num_entries = 0;
+ } else {
+ dsd->entries[dsd->num_entries].file_name = mg_strdup(de->file_name);
+ dsd->entries[dsd->num_entries].st = de->st;
+ dsd->entries[dsd->num_entries].conn = de->conn;
+ dsd->num_entries++;
+ }
+}
+
+static void handle_directory_request(struct mg_connection *conn,
+ const char *dir) {
+ int i, sort_direction;
+ struct dir_scan_data data = { NULL, 0, 128 };
+
+ if (!scan_directory(conn, dir, &data, dir_scan_callback)) {
+ send_http_error(conn, 500, "Cannot open directory",
+ "Error: opendir(%s): %s", dir, strerror(ERRNO));
+ return;
+ }
+
+ sort_direction = conn->request_info.query_string != NULL &&
+ conn->request_info.query_string[1] == 'd' ? 'a' : 'd';
+
+ conn->must_close = 1;
+ mg_printf(conn, "%s",
+ "HTTP/1.1 200 OK\r\n"
+ "Connection: close\r\n"
+ "Content-Type: text/html; charset=utf-8\r\n\r\n");
+
+ conn->num_bytes_sent += mg_printf(conn,
+ "<html><head><title>Index of %s</title>"
+ "<style>th {text-align: left;}</style></head>"
+ "<body><h1>Index of %s</h1><pre><table cellpadding=\"0\">"
+ "<tr><th><a href=\"?n%c\">Name</a></th>"
+ "<th><a href=\"?d%c\">Modified</a></th>"
+ "<th><a href=\"?s%c\">Size</a></th></tr>"
+ "<tr><td colspan=\"3\"><hr></td></tr>",
+ conn->request_info.uri, conn->request_info.uri,
+ sort_direction, sort_direction, sort_direction);
+
+ // Print first entry - link to a parent directory
+ conn->num_bytes_sent += mg_printf(conn,
+ "<tr><td><a href=\"%s%s\">%s</a></td>"
+ "<td>&nbsp;%s</td><td>&nbsp;&nbsp;%s</td></tr>\n",
+ conn->request_info.uri, "..", "Parent directory", "-", "-");
+
+ // Sort and print directory entries
+ qsort(data.entries, (size_t) data.num_entries, sizeof(data.entries[0]),
+ compare_dir_entries);
+ for (i = 0; i < data.num_entries; i++) {
+ print_dir_entry(&data.entries[i]);
+ free(data.entries[i].file_name);
+ }
+ free(data.entries);
+
+ conn->num_bytes_sent += mg_printf(conn, "%s", "</table></body></html>");
+ conn->request_info.status_code = 200;
+}
+
+// Send len bytes from the opened file to the client.
+static void send_file_data(struct mg_connection *conn, FILE *fp, int64_t len) {
+ char buf[BUFSIZ];
+ int to_read, num_read, num_written;
+
+ while (len > 0) {
+ // Calculate how much to read from the file in the buffer
+ to_read = sizeof(buf);
+ if ((int64_t) to_read > len)
+ to_read = (int) len;
+
+ // Read from file, exit the loop on error
+ if ((num_read = fread(buf, 1, (size_t)to_read, fp)) == 0)
+ break;
+
+ // Send read bytes to the client, exit the loop on error
+ if ((num_written = mg_write(conn, buf, (size_t)num_read)) != num_read)
+ break;
+
+ // Both read and were successful, adjust counters
+ conn->num_bytes_sent += num_written;
+ len -= num_written;
+ }
+}
+
+static int parse_range_header(const char *header, int64_t *a, int64_t *b) {
+ return sscanf(header, "bytes=%" INT64_FMT "-%" INT64_FMT, a, b);
+}
+
+static void gmt_time_string(char *buf, size_t buf_len, time_t *t) {
+ strftime(buf, buf_len, "%a, %d %b %Y %H:%M:%S GMT", gmtime(t));
+}
+
+static void handle_file_request(struct mg_connection *conn, const char *path,
+ struct mgstat *stp) {
+ char date[64], lm[64], etag[64], range[64];
+ const char *msg = "OK", *hdr;
+ time_t curtime = time(NULL);
+ int64_t cl, r1, r2;
+ struct vec mime_vec;
+ FILE *fp;
+ int n;
+
+ get_mime_type(conn->ctx, path, &mime_vec);
+ cl = stp->size;
+ conn->request_info.status_code = 200;
+ range[0] = '\0';
+
+ if ((fp = mg_fopen(path, "rb")) == NULL) {
+ send_http_error(conn, 500, http_500_error,
+ "fopen(%s): %s", path, strerror(ERRNO));
+ return;
+ }
+ set_close_on_exec(fileno(fp));
+
+ // If Range: header specified, act accordingly
+ r1 = r2 = 0;
+ hdr = mg_get_header(conn, "Range");
+ if (hdr != NULL && (n = parse_range_header(hdr, &r1, &r2)) > 0) {
+ conn->request_info.status_code = 206;
+ (void) fseeko(fp, (off_t) r1, SEEK_SET);
+ cl = n == 2 ? r2 - r1 + 1: cl - r1;
+ (void) mg_snprintf(conn, range, sizeof(range),
+ "Content-Range: bytes "
+ "%" INT64_FMT "-%"
+ INT64_FMT "/%" INT64_FMT "\r\n",
+ r1, r1 + cl - 1, stp->size);
+ msg = "Partial Content";
+ }
+
+ // Prepare Etag, Date, Last-Modified headers. Must be in UTC, according to
+ // http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.3
+ gmt_time_string(date, sizeof(date), &curtime);
+ gmt_time_string(lm, sizeof(lm), &stp->mtime);
+ (void) mg_snprintf(conn, etag, sizeof(etag), "%lx.%lx",
+ (unsigned long) stp->mtime, (unsigned long) stp->size);
+
+ (void) mg_printf(conn,
+ "HTTP/1.1 %d %s\r\n"
+ "Date: %s\r\n"
+ "Last-Modified: %s\r\n"
+ "Etag: \"%s\"\r\n"
+ "Content-Type: %.*s\r\n"
+ "Content-Length: %" INT64_FMT "\r\n"
+ "Connection: %s\r\n"
+ "Accept-Ranges: bytes\r\n"
+ "%s\r\n",
+ conn->request_info.status_code, msg, date, lm, etag, (int) mime_vec.len,
+ mime_vec.ptr, cl, suggest_connection_header(conn), range);
+
+ if (strcmp(conn->request_info.request_method, "HEAD") != 0) {
+ send_file_data(conn, fp, cl);
+ }
+ (void) fclose(fp);
+}
+
+void mg_send_file(struct mg_connection *conn, const char *path) {
+ struct mgstat st;
+ if (mg_stat(path, &st) == 0) {
+ handle_file_request(conn, path, &st);
+ } else {
+ send_http_error(conn, 404, "Not Found", "%s", "File not found");
+ }
+}
+
+
+// Parse HTTP headers from the given buffer, advance buffer to the point
+// where parsing stopped.
+static void parse_http_headers(char **buf, struct mg_request_info *ri) {
+ int i;
+
+ for (i = 0; i < (int) ARRAY_SIZE(ri->http_headers); i++) {
+ ri->http_headers[i].name = skip_quoted(buf, ":", " ", 0);
+ ri->http_headers[i].value = skip(buf, "\r\n");
+ if (ri->http_headers[i].name[0] == '\0')
+ break;
+ ri->num_headers = i + 1;
+ }
+}
+
+static int is_valid_http_method(const char *method) {
+ return !strcmp(method, "GET") || !strcmp(method, "POST") ||
+ !strcmp(method, "HEAD") || !strcmp(method, "CONNECT") ||
+ !strcmp(method, "PUT") || !strcmp(method, "DELETE") ||
+ !strcmp(method, "OPTIONS") || !strcmp(method, "PROPFIND");
+}
+
+// Parse HTTP request, fill in mg_request_info structure.
+static int parse_http_request(char *buf, struct mg_request_info *ri) {
+ int status = 0;
+
+ // RFC says that all initial whitespaces should be ingored
+ while (*buf != '\0' && isspace(* (unsigned char *) buf)) {
+ buf++;
+ }
+
+ ri->request_method = skip(&buf, " ");
+ ri->uri = skip(&buf, " ");
+ ri->http_version = skip(&buf, "\r\n");
+
+ if (is_valid_http_method(ri->request_method) &&
+ strncmp(ri->http_version, "HTTP/", 5) == 0) {
+ ri->http_version += 5; // Skip "HTTP/"
+ parse_http_headers(&buf, ri);
+ status = 1;
+ }
+
+ return status;
+}
+
+// Keep reading the input (either opened file descriptor fd, or socket sock,
+// or SSL descriptor ssl) into buffer buf, until \r\n\r\n appears in the
+// buffer (which marks the end of HTTP request). Buffer buf may already
+// have some data. The length of the data is stored in nread.
+// Upon every read operation, increase nread by the number of bytes read.
+static int read_request(FILE *fp, SOCKET sock, SSL *ssl, char *buf, int bufsiz,
+ int *nread) {
+ int request_len, n = 0;
+
+ do {
+ request_len = get_request_len(buf, *nread);
+ if (request_len == 0 &&
+ (n = pull(fp, sock, ssl, buf + *nread, bufsiz - *nread)) > 0) {
+ *nread += n;
+ }
+ } while (*nread < bufsiz && request_len == 0 && n > 0);
+
+ return request_len;
+}
+
+// For given directory path, substitute it to valid index file.
+// Return 0 if index file has been found, -1 if not found.
+// If the file is found, it's stats is returned in stp.
+static int substitute_index_file(struct mg_connection *conn, char *path,
+ size_t path_len, struct mgstat *stp) {
+ const char *list = conn->ctx->config[INDEX_FILES];
+ struct mgstat st;
+ struct vec filename_vec;
+ size_t n = strlen(path);
+ int found = 0;
+
+ // The 'path' given to us points to the directory. Remove all trailing
+ // directory separator characters from the end of the path, and
+ // then append single directory separator character.
+ while (n > 0 && IS_DIRSEP_CHAR(path[n - 1])) {
+ n--;
+ }
+ path[n] = DIRSEP;
+
+ // Traverse index files list. For each entry, append it to the given
+ // path and see if the file exists. If it exists, break the loop
+ while ((list = next_option(list, &filename_vec, NULL)) != NULL) {
+
+ // Ignore too long entries that may overflow path buffer
+ if (filename_vec.len > path_len - (n + 2))
+ continue;
+
+ // Prepare full path to the index file
+ (void) mg_strlcpy(path + n + 1, filename_vec.ptr, filename_vec.len + 1);
+
+ // Does it exist?
+ if (mg_stat(path, &st) == 0) {
+ // Yes it does, break the loop
+ *stp = st;
+ found = 1;
+ break;
+ }
+ }
+
+ // If no index file exists, restore directory path
+ if (!found) {
+ path[n] = '\0';
+ }
+
+ return found;
+}
+
+// Return True if we should reply 304 Not Modified.
+static int is_not_modified(const struct mg_connection *conn,
+ const struct mgstat *stp) {
+ const char *ims = mg_get_header(conn, "If-Modified-Since");
+ return ims != NULL && stp->mtime <= parse_date_string(ims);
+}
+
+static int forward_body_data(struct mg_connection *conn, FILE *fp,
+ SOCKET sock, SSL *ssl) {
+ const char *expect, *buffered;
+ char buf[BUFSIZ];
+ int to_read, nread, buffered_len, success = 0;
+
+ expect = mg_get_header(conn, "Expect");
+ assert(fp != NULL);
+
+ if (conn->content_len == -1) {
+ send_http_error(conn, 411, "Length Required", "");
+ } else if (expect != NULL && mg_strcasecmp(expect, "100-continue")) {
+ send_http_error(conn, 417, "Expectation Failed", "");
+ } else {
+ if (expect != NULL) {
+ (void) mg_printf(conn, "%s", "HTTP/1.1 100 Continue\r\n\r\n");
+ }
+
+ buffered = conn->buf + conn->request_len;
+ buffered_len = conn->data_len - conn->request_len;
+ assert(buffered_len >= 0);
+ assert(conn->consumed_content == 0);
+
+ if (buffered_len > 0) {
+ if ((int64_t) buffered_len > conn->content_len) {
+ buffered_len = (int) conn->content_len;
+ }
+ push(fp, sock, ssl, buffered, (int64_t) buffered_len);
+ conn->consumed_content += buffered_len;
+ }
+
+ while (conn->consumed_content < conn->content_len) {
+ to_read = sizeof(buf);
+ if ((int64_t) to_read > conn->content_len - conn->consumed_content) {
+ to_read = (int) (conn->content_len - conn->consumed_content);
+ }
+ nread = pull(NULL, conn->client.sock, conn->ssl, buf, to_read);
+ if (nread <= 0 || push(fp, sock, ssl, buf, nread) != nread) {
+ break;
+ }
+ conn->consumed_content += nread;
+ }
+
+ if (conn->consumed_content == conn->content_len) {
+ success = 1;
+ }
+
+ // Each error code path in this function must send an error
+ if (!success) {
+ send_http_error(conn, 577, http_500_error, "");
+ }
+ }
+
+ return success;
}
#if !defined(NO_CGI)
-
-/*
- * This structure helps to create an environment for the spawned CGI program.
- * Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
- * last element must be NULL.
- * However, on Windows there is a requirement that all these VARIABLE=VALUE\0
- * strings must reside in a contiguous buffer. The end of the buffer is
- * marked by two '\0' characters.
- * We satisfy both worlds: we create an envp array (which is vars), all
- * entries are actually pointers inside buf.
- */
+// This structure helps to create an environment for the spawned CGI program.
+// Environment is an array of "VARIABLE=VALUE\0" ASCIIZ strings,
+// last element must be NULL.
+// However, on Windows there is a requirement that all these VARIABLE=VALUE\0
+// strings must reside in a contiguous buffer. The end of the buffer is
+// marked by two '\0' characters.
+// We satisfy both worlds: we create an envp array (which is vars), all
+// entries are actually pointers inside buf.
struct cgi_env_block {
- struct mg_connection *conn;
- char buf[CGI_ENVIRONMENT_SIZE]; /* Environment buffer */
- int len; /* Space taken */
- char *vars[MAX_CGI_ENVIR_VARS]; /* char **envp */
- int nvars; /* Number of variables */
+ struct mg_connection *conn;
+ char buf[CGI_ENVIRONMENT_SIZE]; // Environment buffer
+ int len; // Space taken
+ char *vars[MAX_CGI_ENVIR_VARS]; // char **envp
+ int nvars; // Number of variables
};
-/*
- * Append VARIABLE=VALUE\0 string to the buffer, and add a respective
- * pointer into the vars array.
- */
-static char *
-addenv(struct cgi_env_block *block, const char *fmt, ...)
-{
- int n, space;
- char *added;
- va_list ap;
-
- /* Calculate how much space is left in the buffer */
- space = sizeof(block->buf) - block->len - 2;
- assert(space >= 0);
-
- /* Make a pointer to the free space int the buffer */
- added = block->buf + block->len;
-
- /* Copy VARIABLE=VALUE\0 string into the free space */
- va_start(ap, fmt);
- n = mg_vsnprintf(block->conn, added, (size_t) space, fmt, ap);
- va_end(ap);
-
- /* Make sure we do not overflow buffer and the envp array */
- if (n > 0 && n < space &&
- block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
- /* Append a pointer to the added string into the envp array */
- block->vars[block->nvars++] = block->buf + block->len;
- /* Bump up used length counter. Include \0 terminator */
- block->len += n + 1;
- }
-
- return (added);
-}
-
-static void
-prepare_cgi_environment(struct mg_connection *conn, const char *prog,
- struct cgi_env_block *blk)
-{
- const char *s, *script_filename, *root, *slash;
- struct vec var_vec;
- char *p;
- int i;
-
- blk->len = blk->nvars = 0;
- blk->conn = conn;
-
- /* SCRIPT_FILENAME */
- script_filename = prog;
- if ((s = strrchr(prog, '/')) != NULL)
- script_filename = s + 1;
-
- lock_option(conn->ctx, OPT_ROOT);
- root = conn->ctx->options[OPT_ROOT];
- addenv(blk, "SERVER_NAME=%s", conn->ctx->options[OPT_AUTH_DOMAIN]);
- unlock_option(conn->ctx, OPT_ROOT);
-
- /* Prepare the environment block */
- addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
- addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
- addenv(blk, "%s", "REDIRECT_STATUS=200"); /* PHP */
- addenv(blk, "SERVER_PORT=%d", ntohs(conn->client.lsa.u.sin.sin_port));
- addenv(blk, "SERVER_ROOT=%s", root);
- addenv(blk, "DOCUMENT_ROOT=%s", root);
- addenv(blk, "REQUEST_METHOD=%s", conn->request_info.request_method);
- addenv(blk, "REMOTE_ADDR=%s",
- inet_ntoa(conn->client.rsa.u.sin.sin_addr));
- addenv(blk, "REMOTE_PORT=%d", conn->request_info.remote_port);
- addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
-
- slash = strrchr(conn->request_info.uri, '/');
- addenv(blk, "SCRIPT_NAME=%.*s%s",
- (slash - conn->request_info.uri) + 1, conn->request_info.uri,
- script_filename);
-
- addenv(blk, "SCRIPT_FILENAME=%s", script_filename); /* PHP */
- addenv(blk, "PATH_TRANSLATED=%s", prog);
- addenv(blk, "HTTPS=%s", conn->ssl == NULL ? "off" : "on");
-
- if ((s = mg_get_header(conn, "Content-Type")) != NULL)
- addenv(blk, "CONTENT_TYPE=%s", s);
-
- if (conn->request_info.query_string != NULL)
- addenv(blk, "QUERY_STRING=%s", conn->request_info.query_string);
-
- if ((s = mg_get_header(conn, "Content-Length")) != NULL)
- addenv(blk, "CONTENT_LENGTH=%s", s);
-
- if ((s = getenv("PATH")) != NULL)
- addenv(blk, "PATH=%s", s);
+// Append VARIABLE=VALUE\0 string to the buffer, and add a respective
+// pointer into the vars array.
+static char *addenv(struct cgi_env_block *block, const char *fmt, ...) {
+ int n, space;
+ char *added;
+ va_list ap;
+
+ // Calculate how much space is left in the buffer
+ space = sizeof(block->buf) - block->len - 2;
+ assert(space >= 0);
+
+ // Make a pointer to the free space int the buffer
+ added = block->buf + block->len;
+
+ // Copy VARIABLE=VALUE\0 string into the free space
+ va_start(ap, fmt);
+ n = mg_vsnprintf(block->conn, added, (size_t) space, fmt, ap);
+ va_end(ap);
+
+ // Make sure we do not overflow buffer and the envp array
+ if (n > 0 && n < space &&
+ block->nvars < (int) ARRAY_SIZE(block->vars) - 2) {
+ // Append a pointer to the added string into the envp array
+ block->vars[block->nvars++] = block->buf + block->len;
+ // Bump up used length counter. Include \0 terminator
+ block->len += n + 1;
+ }
+
+ return added;
+}
+
+static void prepare_cgi_environment(struct mg_connection *conn,
+ const char *prog,
+ struct cgi_env_block *blk) {
+ const char *s, *slash;
+ struct vec var_vec;
+ char *p, src_addr[20];
+ int i;
+
+ blk->len = blk->nvars = 0;
+ blk->conn = conn;
+ sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
+
+ addenv(blk, "SERVER_NAME=%s", conn->ctx->config[AUTHENTICATION_DOMAIN]);
+ addenv(blk, "SERVER_ROOT=%s", conn->ctx->config[DOCUMENT_ROOT]);
+ addenv(blk, "DOCUMENT_ROOT=%s", conn->ctx->config[DOCUMENT_ROOT]);
+
+ // Prepare the environment block
+ addenv(blk, "%s", "GATEWAY_INTERFACE=CGI/1.1");
+ addenv(blk, "%s", "SERVER_PROTOCOL=HTTP/1.1");
+ addenv(blk, "%s", "REDIRECT_STATUS=200"); // For PHP
+
+ // TODO(lsm): fix this for IPv6 case
+ addenv(blk, "SERVER_PORT=%d", ntohs(conn->client.lsa.sin.sin_port));
+
+ addenv(blk, "REQUEST_METHOD=%s", conn->request_info.request_method);
+ addenv(blk, "REMOTE_ADDR=%s", src_addr);
+ addenv(blk, "REMOTE_PORT=%d", conn->request_info.remote_port);
+ addenv(blk, "REQUEST_URI=%s", conn->request_info.uri);
+
+ // SCRIPT_NAME
+ assert(conn->request_info.uri[0] == '/');
+ slash = strrchr(conn->request_info.uri, '/');
+ if ((s = strrchr(prog, '/')) == NULL)
+ s = prog;
+ addenv(blk, "SCRIPT_NAME=%.*s%s", slash - conn->request_info.uri,
+ conn->request_info.uri, s);
+
+ addenv(blk, "SCRIPT_FILENAME=%s", prog);
+ addenv(blk, "PATH_TRANSLATED=%s", prog);
+ addenv(blk, "HTTPS=%s", conn->ssl == NULL ? "off" : "on");
+
+ if ((s = mg_get_header(conn, "Content-Type")) != NULL)
+ addenv(blk, "CONTENT_TYPE=%s", s);
+
+ if (conn->request_info.query_string != NULL)
+ addenv(blk, "QUERY_STRING=%s", conn->request_info.query_string);
+
+ if ((s = mg_get_header(conn, "Content-Length")) != NULL)
+ addenv(blk, "CONTENT_LENGTH=%s", s);
+
+ if ((s = getenv("PATH")) != NULL)
+ addenv(blk, "PATH=%s", s);
+
+ if (conn->path_info != NULL) {
+ addenv(blk, "PATH_INFO=%s", conn->path_info);
+ }
#if defined(_WIN32)
- if ((s = getenv("COMSPEC")) != NULL)
- addenv(blk, "COMSPEC=%s", s);
- if ((s = getenv("SYSTEMROOT")) != NULL)
- addenv(blk, "SYSTEMROOT=%s", s);
+ if ((s = getenv("COMSPEC")) != NULL) {
+ addenv(blk, "COMSPEC=%s", s);
+ }
+ if ((s = getenv("SYSTEMROOT")) != NULL) {
+ addenv(blk, "SYSTEMROOT=%s", s);
+ }
+ if ((s = getenv("SystemDrive")) != NULL) {
+ addenv(blk, "SystemDrive=%s", s);
+ }
#else
- if ((s = getenv("LD_LIBRARY_PATH")) != NULL)
- addenv(blk, "LD_LIBRARY_PATH=%s", s);
-#endif /* _WIN32 */
-
- if ((s = getenv("PERLLIB")) != NULL)
- addenv(blk, "PERLLIB=%s", s);
-
- if (conn->request_info.remote_user != NULL) {
- addenv(blk, "REMOTE_USER=%s", conn->request_info.remote_user);
- addenv(blk, "%s", "AUTH_TYPE=Digest");
- }
-
- /* Add all headers as HTTP_* variables */
- for (i = 0; i < conn->request_info.num_headers; i++) {
- p = addenv(blk, "HTTP_%s=%s",
- conn->request_info.http_headers[i].name,
- conn->request_info.http_headers[i].value);
-
- /* Convert variable name into uppercase, and change - to _ */
- for (; *p != '=' && *p != '\0'; p++) {
- if (*p == '-')
- *p = '_';
- *p = (char) toupper(* (unsigned char *) p);
- }
- }
-
- /* Add user-specified variables */
- lock_option(conn->ctx, OPT_CGI_ENV);
- s = conn->ctx->options[OPT_CGI_ENV];
- while ((s = next_option(s, &var_vec, NULL)) != NULL)
- addenv(blk, "%.*s", var_vec.len, var_vec.ptr);
- unlock_option(conn->ctx, OPT_CGI_ENV);
-
- blk->vars[blk->nvars++] = NULL;
- blk->buf[blk->len++] = '\0';
-
- assert(blk->nvars < (int) ARRAY_SIZE(blk->vars));
- assert(blk->len > 0);
- assert(blk->len < (int) sizeof(blk->buf));
-}
-
-static void
-send_cgi(struct mg_connection *conn, const char *prog)
-{
- int headers_len, data_len, i;
- const char *status;
- char buf[MAX_REQUEST_SIZE], *pbuf;
- struct mg_request_info ri;
- struct cgi_env_block blk;
- char dir[FILENAME_MAX], *p;
- int fd_stdin[2], fd_stdout[2];
- FILE *in, *out;
- pid_t pid;
-
- prepare_cgi_environment(conn, prog, &blk);
-
- /* CGI must be executed in its own directory */
- (void) mg_snprintf(conn, dir, sizeof(dir), "%s", prog);
- if ((p = strrchr(dir, DIRSEP)) != NULL)
- *p++ = '\0';
-
- pid = (pid_t) -1;
- fd_stdin[0] = fd_stdin[1] = fd_stdout[0] = fd_stdout[1] = -1;
- in = out = NULL;
-
- if (pipe(fd_stdin) != 0 || pipe(fd_stdout) != 0) {
- send_error(conn, 500, http_500_error,
- "Cannot create CGI pipe: %s", strerror(ERRNO));
- goto done;
- } else if ((pid = spawn_process(conn, p, blk.buf, blk.vars,
- fd_stdin[0], fd_stdout[1], dir)) == (pid_t) -1) {
- goto done;
- } else if ((in = fdopen(fd_stdin[1], "wb")) == NULL ||
- (out = fdopen(fd_stdout[0], "rb")) == NULL) {
- send_error(conn, 500, http_500_error,
- "fopen: %s", strerror(ERRNO));
- goto done;
- }
-
- setbuf(in, NULL);
- setbuf(out, NULL);
-
- /*
- * spawn_process() must close those!
- * If we don't mark them as closed, close() attempt before
- * return from this function throws an exception on Windows.
- * Windows does not like when closed descriptor is closed again.
- */
- fd_stdin[0] = fd_stdout[1] = -1;
-
- /* Send POST data to the CGI process if needed */
- if (!strcmp(conn->request_info.request_method, "POST") &&
- !handle_request_body(conn, in)) {
- goto done;
- }
-
- /*
- * Now read CGI reply into a buffer. We need to set correct
- * status code, thus we need to see all HTTP headers first.
- * Do not send anything back to client, until we buffer in all
- * HTTP headers.
- */
- data_len = 0;
- headers_len = read_request(out, INVALID_SOCKET, NULL,
- buf, sizeof(buf), &data_len);
- if (headers_len <= 0) {
- send_error(conn, 500, http_500_error,
- "CGI program sent malformed HTTP headers: [%.*s]",
- data_len, buf);
- goto done;
- }
- pbuf = buf;
- buf[headers_len - 1] = '\0';
- parse_http_headers(&pbuf, &ri);
-
- /* Make up and send the status line */
- status = get_header(&ri, "Status");
- conn->request_info.status_code = status == NULL ? 200 : atoi(status);
- (void) mg_printf(conn, "HTTP/1.1 %d OK\r\n",
- conn->request_info.status_code);
-
- /* Send headers */
- for (i = 0; i < ri.num_headers; i++)
- (void) mg_printf(conn, "%s: %s\r\n",
- ri.http_headers[i].name,
- ri.http_headers[i].value);
- (void) mg_write(conn, "\r\n", 2);
-
- /* Send chunk of data that may be read after the headers */
- conn->num_bytes_sent += mg_write(conn,
- buf + headers_len, data_len - headers_len);
-
- /* Read the rest of CGI output and send to the client */
- send_opened_file_stream(conn, out, INT64_MAX);
+ if ((s = getenv("LD_LIBRARY_PATH")) != NULL)
+ addenv(blk, "LD_LIBRARY_PATH=%s", s);
+#endif // _WIN32
+
+ if ((s = getenv("PERLLIB")) != NULL)
+ addenv(blk, "PERLLIB=%s", s);
+
+ if (conn->request_info.remote_user != NULL) {
+ addenv(blk, "REMOTE_USER=%s", conn->request_info.remote_user);
+ addenv(blk, "%s", "AUTH_TYPE=Digest");
+ }
+
+ // Add all headers as HTTP_* variables
+ for (i = 0; i < conn->request_info.num_headers; i++) {
+ p = addenv(blk, "HTTP_%s=%s",
+ conn->request_info.http_headers[i].name,
+ conn->request_info.http_headers[i].value);
+
+ // Convert variable name into uppercase, and change - to _
+ for (; *p != '=' && *p != '\0'; p++) {
+ if (*p == '-')
+ *p = '_';
+ *p = (char) toupper(* (unsigned char *) p);
+ }
+ }
+
+ // Add user-specified variables
+ s = conn->ctx->config[CGI_ENVIRONMENT];
+ while ((s = next_option(s, &var_vec, NULL)) != NULL) {
+ addenv(blk, "%.*s", var_vec.len, var_vec.ptr);
+ }
+
+ blk->vars[blk->nvars++] = NULL;
+ blk->buf[blk->len++] = '\0';
+
+ assert(blk->nvars < (int) ARRAY_SIZE(blk->vars));
+ assert(blk->len > 0);
+ assert(blk->len < (int) sizeof(blk->buf));
+}
+
+static void handle_cgi_request(struct mg_connection *conn, const char *prog) {
+ int headers_len, data_len, i, fd_stdin[2], fd_stdout[2];
+ const char *status, *status_text;
+ char buf[16384], *pbuf, dir[PATH_MAX], *p;
+ struct mg_request_info ri;
+ struct cgi_env_block blk;
+ FILE *in, *out;
+ pid_t pid;
+
+ prepare_cgi_environment(conn, prog, &blk);
+
+ // CGI must be executed in its own directory. 'dir' must point to the
+ // directory containing executable program, 'p' must point to the
+ // executable program name relative to 'dir'.
+ (void) mg_snprintf(conn, dir, sizeof(dir), "%s", prog);
+ if ((p = strrchr(dir, DIRSEP)) != NULL) {
+ *p++ = '\0';
+ } else {
+ dir[0] = '.', dir[1] = '\0';
+ p = (char *) prog;
+ }
+
+ pid = (pid_t) -1;
+ fd_stdin[0] = fd_stdin[1] = fd_stdout[0] = fd_stdout[1] = -1;
+ in = out = NULL;
+
+ if (pipe(fd_stdin) != 0 || pipe(fd_stdout) != 0) {
+ send_http_error(conn, 500, http_500_error,
+ "Cannot create CGI pipe: %s", strerror(ERRNO));
+ goto done;
+ } else if ((pid = spawn_process(conn, p, blk.buf, blk.vars,
+ fd_stdin[0], fd_stdout[1], dir)) == (pid_t) -1) {
+ goto done;
+ } else if ((in = fdopen(fd_stdin[1], "wb")) == NULL ||
+ (out = fdopen(fd_stdout[0], "rb")) == NULL) {
+ send_http_error(conn, 500, http_500_error,
+ "fopen: %s", strerror(ERRNO));
+ goto done;
+ }
+
+ setbuf(in, NULL);
+ setbuf(out, NULL);
+
+ // spawn_process() must close those!
+ // If we don't mark them as closed, close() attempt before
+ // return from this function throws an exception on Windows.
+ // Windows does not like when closed descriptor is closed again.
+ fd_stdin[0] = fd_stdout[1] = -1;
+
+ // Send POST data to the CGI process if needed
+ if (!strcmp(conn->request_info.request_method, "POST") &&
+ !forward_body_data(conn, in, INVALID_SOCKET, NULL)) {
+ goto done;
+ }
+
+ // Now read CGI reply into a buffer. We need to set correct
+ // status code, thus we need to see all HTTP headers first.
+ // Do not send anything back to client, until we buffer in all
+ // HTTP headers.
+ data_len = 0;
+ headers_len = read_request(out, INVALID_SOCKET, NULL,
+ buf, sizeof(buf), &data_len);
+ if (headers_len <= 0) {
+ send_http_error(conn, 500, http_500_error,
+ "CGI program sent malformed HTTP headers: [%.*s]",
+ data_len, buf);
+ goto done;
+ }
+ pbuf = buf;
+ buf[headers_len - 1] = '\0';
+ parse_http_headers(&pbuf, &ri);
+
+ // Make up and send the status line
+ status_text = "OK";
+ if ((status = get_header(&ri, "Status")) != NULL) {
+ conn->request_info.status_code = atoi(status);
+ status_text = status;
+ while (isdigit(* (unsigned char *) status_text) || *status_text == ' ') {
+ status_text++;
+ }
+ } else if (get_header(&ri, "Location") != NULL) {
+ conn->request_info.status_code = 302;
+ } else {
+ conn->request_info.status_code = 200;
+ }
+ if (get_header(&ri, "Connection") != NULL &&
+ !mg_strcasecmp(get_header(&ri, "Connection"), "keep-alive")) {
+ conn->must_close = 1;
+ }
+ (void) mg_printf(conn, "HTTP/1.1 %d %s\r\n", conn->request_info.status_code,
+ status_text);
+
+ // Send headers
+ for (i = 0; i < ri.num_headers; i++) {
+ mg_printf(conn, "%s: %s\r\n",
+ ri.http_headers[i].name, ri.http_headers[i].value);
+ }
+ (void) mg_write(conn, "\r\n", 2);
+
+ // Send chunk of data that may be read after the headers
+ conn->num_bytes_sent += mg_write(conn, buf + headers_len,
+ (size_t)(data_len - headers_len));
+
+ // Read the rest of CGI output and send to the client
+ send_file_data(conn, out, INT64_MAX);
done:
- if (pid != (pid_t) -1)
- kill(pid, SIGTERM);
- if (fd_stdin[0] != -1)
- (void) close(fd_stdin[0]);
- if (fd_stdout[1] != -1)
- (void) close(fd_stdout[1]);
-
- if (in != NULL)
- (void) fclose(in);
- else if (fd_stdin[1] != -1)
- (void) close(fd_stdin[1]);
-
- if (out != NULL)
- (void) fclose(out);
- else if (fd_stdout[0] != -1)
- (void) close(fd_stdout[0]);
-}
-#endif /* !NO_CGI */
-
-/*
- * For a given PUT path, create all intermediate subdirectories
- * for given path. Return 0 if the path itself is a directory,
- * or -1 on error, 1 if OK.
- */
-static int
-put_dir(const char *path)
-{
- char buf[FILENAME_MAX];
- const char *s, *p;
- struct mgstat st;
- size_t len;
-
- for (s = p = path + 2; (p = strchr(s, '/')) != NULL; s = ++p) {
- len = p - path;
- assert(len < sizeof(buf));
- (void) memcpy(buf, path, len);
- buf[len] = '\0';
-
- /* Try to create intermediate directory */
- if (mg_stat(buf, &st) == -1 && mg_mkdir(buf, 0755) != 0)
- return (-1);
-
- /* Is path itself a directory ? */
- if (p[1] == '\0')
- return (0);
- }
-
- return (1);
-}
-
-static void
-put_file(struct mg_connection *conn, const char *path)
-{
- struct mgstat st;
- FILE *fp;
- int rc;
-
- conn->request_info.status_code = mg_stat(path, &st) == 0 ? 200 : 201;
-
- if (mg_get_header(conn, "Range")) {
- send_error(conn, 501, "Not Implemented",
- "%s", "Range support for PUT requests is not implemented");
- } else if ((rc = put_dir(path)) == 0) {
- (void) mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n",
- conn->request_info.status_code);
- } else if (rc == -1) {
- send_error(conn, 500, http_500_error,
- "put_dir(%s): %s", path, strerror(ERRNO));
- } else if ((fp = mg_fopen(path, "wb+")) == NULL) {
- send_error(conn, 500, http_500_error,
- "fopen(%s): %s", path, strerror(ERRNO));
- } else {
- set_close_on_exec(fileno(fp));
- if (handle_request_body(conn, fp))
- (void) mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n",
- conn->request_info.status_code);
- (void) fclose(fp);
- }
-}
-
-#if !defined(NO_SSI)
+ if (pid != (pid_t) -1) {
+ kill(pid, SIGKILL);
+ }
+ if (fd_stdin[0] != -1) {
+ (void) close(fd_stdin[0]);
+ }
+ if (fd_stdout[1] != -1) {
+ (void) close(fd_stdout[1]);
+ }
+
+ if (in != NULL) {
+ (void) fclose(in);
+ } else if (fd_stdin[1] != -1) {
+ (void) close(fd_stdin[1]);
+ }
+
+ if (out != NULL) {
+ (void) fclose(out);
+ } else if (fd_stdout[0] != -1) {
+ (void) close(fd_stdout[0]);
+ }
+}
+#endif // !NO_CGI
+
+// For a given PUT path, create all intermediate subdirectories
+// for given path. Return 0 if the path itself is a directory,
+// or -1 on error, 1 if OK.
+static int put_dir(const char *path) {
+ char buf[PATH_MAX];
+ const char *s, *p;
+ struct mgstat st;
+ int len, res = 1;
+
+ for (s = p = path + 2; (p = strchr(s, DIRSEP)) != NULL; s = ++p) {
+ len = p - path;
+ if (len >= (int) sizeof(buf)) {
+ res = -1;
+ break;
+ }
+ memcpy(buf, path, len);
+ buf[len] = '\0';
+
+ // Try to create intermediate directory
+ DEBUG_TRACE(("mkdir(%s)", buf));
+ if (mg_stat(buf, &st) == -1 && mg_mkdir(buf, 0755) != 0) {
+ res = -1;
+ break;
+ }
+
+ // Is path itself a directory?
+ if (p[1] == '\0') {
+ res = 0;
+ }
+ }
+
+ return res;
+}
+
+static void put_file(struct mg_connection *conn, const char *path) {
+ struct mgstat st;
+ const char *range;
+ int64_t r1, r2;
+ FILE *fp;
+ int rc;
+
+ conn->request_info.status_code = mg_stat(path, &st) == 0 ? 200 : 201;
+
+ if ((rc = put_dir(path)) == 0) {
+ mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n", conn->request_info.status_code);
+ } else if (rc == -1) {
+ send_http_error(conn, 500, http_500_error,
+ "put_dir(%s): %s", path, strerror(ERRNO));
+ } else if ((fp = mg_fopen(path, "wb+")) == NULL) {
+ send_http_error(conn, 500, http_500_error,
+ "fopen(%s): %s", path, strerror(ERRNO));
+ } else {
+ set_close_on_exec(fileno(fp));
+ range = mg_get_header(conn, "Content-Range");
+ r1 = r2 = 0;
+ if (range != NULL && parse_range_header(range, &r1, &r2) > 0) {
+ conn->request_info.status_code = 206;
+ // TODO(lsm): handle seek error
+ (void) fseeko(fp, (off_t) r1, SEEK_SET);
+ }
+ if (forward_body_data(conn, fp, INVALID_SOCKET, NULL))
+ (void) mg_printf(conn, "HTTP/1.1 %d OK\r\n\r\n",
+ conn->request_info.status_code);
+ (void) fclose(fp);
+ }
+}
+
static void send_ssi_file(struct mg_connection *, const char *, FILE *, int);
-static void
-do_ssi_include(struct mg_connection *conn, const char *ssi, char *tag,
- int include_level)
-{
- char file_name[BUFSIZ], path[FILENAME_MAX], *p;
- FILE *fp;
-
- /*
- * sscanf() is safe here, since send_ssi_file() also uses buffer
- * of size BUFSIZ to get the tag. So strlen(tag) is always < BUFSIZ.
- */
- if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
- /* File name is relative to the webserver root */
- lock_option(conn->ctx, OPT_ROOT);
- (void) mg_snprintf(conn, path, sizeof(path), "%s%c%s",
- conn->ctx->options[OPT_ROOT], DIRSEP, file_name);
- unlock_option(conn->ctx, OPT_ROOT);
- } else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1) {
- /*
- * File name is relative to the webserver working directory
- * or it is absolute system path
- */
- (void) mg_snprintf(conn, path, sizeof(path), "%s", file_name);
- } else if (sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
- /* File name is relative to the currect document */
- (void) mg_snprintf(conn, path, sizeof(path), "%s", ssi);
- if ((p = strrchr(path, DIRSEP)) != NULL)
- p[1] = '\0';
- (void) mg_snprintf(conn, path + strlen(path),
- sizeof(path) - strlen(path), "%s", file_name);
- } else {
- cry(conn, "Bad SSI #include: [%s]", tag);
- return;
- }
-
- if ((fp = mg_fopen(path, "rb")) == NULL) {
- cry(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
- tag, path, strerror(ERRNO));
- } else {
- set_close_on_exec(fileno(fp));
- if (match_extension(path,
- conn->ctx->options[OPT_SSI_EXTENSIONS])) {
- send_ssi_file(conn, path, fp, include_level + 1);
- } else {
- send_opened_file_stream(conn, fp, INT64_MAX);
- }
- (void) fclose(fp);
- }
-}
-
-static void
-do_ssi_exec(struct mg_connection *conn, char *tag)
-{
- char cmd[BUFSIZ];
- FILE *fp;
-
- if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
- cry(conn, "Bad SSI #exec: [%s]", tag);
- } else if ((fp = popen(cmd, "r")) == NULL) {
- cry(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(ERRNO));
- } else {
- send_opened_file_stream(conn, fp, INT64_MAX);
- (void) pclose(fp);
- }
-}
-
-static void
-send_ssi_file(struct mg_connection *conn, const char *path, FILE *fp,
- int include_level)
-{
- char buf[BUFSIZ];
- int ch, len, in_ssi_tag;
-
- if (include_level > 10) {
- cry(conn, "SSI #include level is too deep (%s)", path);
- return;
- }
-
- in_ssi_tag = FALSE;
- len = 0;
-
- while ((ch = fgetc(fp)) != EOF) {
- if (in_ssi_tag && ch == '>') {
- in_ssi_tag = FALSE;
- buf[len++] = ch & 0xff;
- buf[len] = '\0';
- assert(len <= (int) sizeof(buf));
- if (len < 6 || memcmp(buf, "<!--#", 5) != 0) {
- /* Not an SSI tag, pass it */
- (void) mg_write(conn, buf, len);
- } else {
- if (!memcmp(buf + 5, "include", 7)) {
- do_ssi_include(conn, path, buf + 12,
- include_level);
- } else if (!memcmp(buf + 5, "exec", 4)) {
- do_ssi_exec(conn, buf + 9);
- } else {
- cry(conn, "%s: unknown SSI "
- "command: \"%s\"", path, buf);
- }
- }
- len = 0;
- } else if (in_ssi_tag) {
- if (len == 5 && memcmp(buf, "<!--#", 5) != 0) {
- /* Not an SSI tag */
- in_ssi_tag = FALSE;
- } else if (len == (int) sizeof(buf) - 2) {
- cry(conn, "%s: SSI tag is too large", path);
- len = 0;
- }
- buf[len++] = ch & 0xff;
- } else if (ch == '<') {
- in_ssi_tag = TRUE;
- if (len > 0)
- (void) mg_write(conn, buf, len);
- len = 0;
- buf[len++] = ch & 0xff;
- } else {
- buf[len++] = ch & 0xff;
- if (len == (int) sizeof(buf)) {
- (void) mg_write(conn, buf, len);
- len = 0;
- }
- }
- }
-
- /* Send the rest of buffered data */
- if (len > 0)
- (void) mg_write(conn, buf, len);
-
-}
-
-static void
-send_ssi(struct mg_connection *conn, const char *path)
-{
- FILE *fp;
-
- if ((fp = mg_fopen(path, "rb")) == NULL) {
- send_error(conn, 500, http_500_error,
- "fopen(%s): %s", path, strerror(ERRNO));
- } else {
- set_close_on_exec(fileno(fp));
- (void) mg_printf(conn, "%s", "HTTP/1.1 200 OK\r\n"
- "Content-Type: text/html\r\nConnection: close\r\n\r\n");
- send_ssi_file(conn, path, fp, 0);
- (void) fclose(fp);
- }
-}
-#endif /* !NO_SSI */
-
-void
-mg_authorize(struct mg_connection *conn)
-{
- conn->embedded_auth = TRUE;
-}
-
-static bool_t
-check_embedded_authorization(struct mg_connection *conn)
-{
- const struct callback *cb;
- bool_t authorized;
-
- authorized = TRUE;
- cb = find_callback(conn->ctx, TRUE, conn->request_info.uri, -1);
-
- if (cb != NULL) {
- cb->func(conn, &conn->request_info, cb->user_data);
- authorized = conn->embedded_auth;
- }
-
- return (authorized);
-}
-
-/*
- * This is the heart of the Mongoose's logic.
- * This function is called when the request is read, parsed and validated,
- * and Mongoose must decide what action to take: serve a file, or
- * a directory, or call embedded function, etcetera.
- */
-static void
-analyze_request(struct mg_connection *conn)
-{
- struct mg_request_info *ri = &conn->request_info;
- char path[FILENAME_MAX], *uri = ri->uri;
- struct mgstat st;
- const struct callback *cb;
-
- if ((conn->request_info.query_string = strchr(uri, '?')) != NULL)
- * conn->request_info.query_string++ = '\0';
-
- (void) url_decode(uri, (int) strlen(uri), uri, strlen(uri) + 1, FALSE);
- remove_double_dots_and_double_slashes(uri);
- convert_uri_to_file_name(conn, uri, path, sizeof(path));
-
- if (!check_authorization(conn, path)) {
- send_authorization_request(conn);
- } else if (check_embedded_authorization(conn) == FALSE) {
- /*
- * Embedded code failed authorization. Do nothing here, since
- * an embedded code must handle this itself by either
- * showing proper error message, or redirecting to some
- * sort of login page, or something else.
- */
- } else if ((cb = find_callback(conn->ctx, FALSE, uri, -1)) != NULL) {
- if ((strcmp(ri->request_method, "POST") != 0 &&
- strcmp(ri->request_method, "PUT") != 0) ||
- handle_request_body(conn, NULL))
- cb->func(conn, &conn->request_info, cb->user_data);
- } else if (strstr(path, PASSWORDS_FILE_NAME)) {
- /* Do not allow to view passwords files */
- send_error(conn, 403, "Forbidden", "Access Forbidden");
- } else if ((!strcmp(ri->request_method, "PUT") ||
- !strcmp(ri->request_method, "DELETE")) &&
- (conn->ctx->options[OPT_AUTH_PUT] == NULL ||
- !is_authorized_for_put(conn))) {
- send_authorization_request(conn);
- } else if (!strcmp(ri->request_method, "PUT")) {
- put_file(conn, path);
- } else if (!strcmp(ri->request_method, "DELETE")) {
- if (mg_remove(path) == 0)
- send_error(conn, 200, "OK", "");
- else
- send_error(conn, 500, http_500_error,
- "remove(%s): %s", path, strerror(ERRNO));
- } else if (mg_stat(path, &st) != 0) {
- send_error(conn, 404, "Not Found", "%s", "File not found");
- } else if (st.is_directory && uri[strlen(uri) - 1] != '/') {
- (void) mg_printf(conn,
- "HTTP/1.1 301 Moved Permanently\r\n"
- "Location: %s/\r\n\r\n", uri);
- } else if (st.is_directory &&
- substitute_index_file(conn, path, sizeof(path), &st) == FALSE) {
- if (is_true(conn->ctx->options[OPT_DIR_LIST])) {
- send_directory(conn, path);
- } else {
- send_error(conn, 403, "Directory Listing Denied",
- "Directory listing denied");
- }
+static void do_ssi_include(struct mg_connection *conn, const char *ssi,
+ char *tag, int include_level) {
+ char file_name[BUFSIZ], path[PATH_MAX], *p;
+ FILE *fp;
+
+ // sscanf() is safe here, since send_ssi_file() also uses buffer
+ // of size BUFSIZ to get the tag. So strlen(tag) is always < BUFSIZ.
+ if (sscanf(tag, " virtual=\"%[^\"]\"", file_name) == 1) {
+ // File name is relative to the webserver root
+ (void) mg_snprintf(conn, path, sizeof(path), "%s%c%s",
+ conn->ctx->config[DOCUMENT_ROOT], DIRSEP, file_name);
+ } else if (sscanf(tag, " file=\"%[^\"]\"", file_name) == 1) {
+ // File name is relative to the webserver working directory
+ // or it is absolute system path
+ (void) mg_snprintf(conn, path, sizeof(path), "%s", file_name);
+ } else if (sscanf(tag, " \"%[^\"]\"", file_name) == 1) {
+ // File name is relative to the currect document
+ (void) mg_snprintf(conn, path, sizeof(path), "%s", ssi);
+ if ((p = strrchr(path, DIRSEP)) != NULL) {
+ p[1] = '\0';
+ }
+ (void) mg_snprintf(conn, path + strlen(path),
+ sizeof(path) - strlen(path), "%s", file_name);
+ } else {
+ cry(conn, "Bad SSI #include: [%s]", tag);
+ return;
+ }
+
+ if ((fp = mg_fopen(path, "rb")) == NULL) {
+ cry(conn, "Cannot open SSI #include: [%s]: fopen(%s): %s",
+ tag, path, strerror(ERRNO));
+ } else {
+ set_close_on_exec(fileno(fp));
+ if (match_prefix(conn->ctx->config[SSI_EXTENSIONS],
+ strlen(conn->ctx->config[SSI_EXTENSIONS]), path) > 0) {
+ send_ssi_file(conn, path, fp, include_level + 1);
+ } else {
+ send_file_data(conn, fp, INT64_MAX);
+ }
+ (void) fclose(fp);
+ }
+}
+
+#if !defined(NO_POPEN)
+static void do_ssi_exec(struct mg_connection *conn, char *tag) {
+ char cmd[BUFSIZ];
+ FILE *fp;
+
+ if (sscanf(tag, " \"%[^\"]\"", cmd) != 1) {
+ cry(conn, "Bad SSI #exec: [%s]", tag);
+ } else if ((fp = popen(cmd, "r")) == NULL) {
+ cry(conn, "Cannot SSI #exec: [%s]: %s", cmd, strerror(ERRNO));
+ } else {
+ send_file_data(conn, fp, INT64_MAX);
+ (void) pclose(fp);
+ }
+}
+#endif // !NO_POPEN
+
+static void send_ssi_file(struct mg_connection *conn, const char *path,
+ FILE *fp, int include_level) {
+ char buf[BUFSIZ];
+ int ch, len, in_ssi_tag;
+
+ if (include_level > 10) {
+ cry(conn, "SSI #include level is too deep (%s)", path);
+ return;
+ }
+
+ in_ssi_tag = 0;
+ len = 0;
+
+ while ((ch = fgetc(fp)) != EOF) {
+ if (in_ssi_tag && ch == '>') {
+ in_ssi_tag = 0;
+ buf[len++] = (char) ch;
+ buf[len] = '\0';
+ assert(len <= (int) sizeof(buf));
+ if (len < 6 || memcmp(buf, "<!--#", 5) != 0) {
+ // Not an SSI tag, pass it
+ (void) mg_write(conn, buf, (size_t)len);
+ } else {
+ if (!memcmp(buf + 5, "include", 7)) {
+ do_ssi_include(conn, path, buf + 12, include_level);
+#if !defined(NO_POPEN)
+ } else if (!memcmp(buf + 5, "exec", 4)) {
+ do_ssi_exec(conn, buf + 9);
+#endif // !NO_POPEN
+ } else {
+ cry(conn, "%s: unknown SSI " "command: \"%s\"", path, buf);
+ }
+ }
+ len = 0;
+ } else if (in_ssi_tag) {
+ if (len == 5 && memcmp(buf, "<!--#", 5) != 0) {
+ // Not an SSI tag
+ in_ssi_tag = 0;
+ } else if (len == (int) sizeof(buf) - 2) {
+ cry(conn, "%s: SSI tag is too large", path);
+ len = 0;
+ }
+ buf[len++] = ch & 0xff;
+ } else if (ch == '<') {
+ in_ssi_tag = 1;
+ if (len > 0) {
+ (void) mg_write(conn, buf, (size_t)len);
+ }
+ len = 0;
+ buf[len++] = ch & 0xff;
+ } else {
+ buf[len++] = ch & 0xff;
+ if (len == (int) sizeof(buf)) {
+ (void) mg_write(conn, buf, (size_t)len);
+ len = 0;
+ }
+ }
+ }
+
+ // Send the rest of buffered data
+ if (len > 0) {
+ (void) mg_write(conn, buf, (size_t)len);
+ }
+}
+
+static void handle_ssi_file_request(struct mg_connection *conn,
+ const char *path) {
+ FILE *fp;
+
+ if ((fp = mg_fopen(path, "rb")) == NULL) {
+ send_http_error(conn, 500, http_500_error, "fopen(%s): %s", path,
+ strerror(ERRNO));
+ } else {
+ conn->must_close = 1;
+ set_close_on_exec(fileno(fp));
+ mg_printf(conn, "HTTP/1.1 200 OK\r\n"
+ "Content-Type: text/html\r\nConnection: %s\r\n\r\n",
+ suggest_connection_header(conn));
+ send_ssi_file(conn, path, fp, 0);
+ (void) fclose(fp);
+ }
+}
+
+static void send_options(struct mg_connection *conn) {
+ conn->request_info.status_code = 200;
+
+ (void) mg_printf(conn,
+ "HTTP/1.1 200 OK\r\n"
+ "Allow: GET, POST, HEAD, CONNECT, PUT, DELETE, OPTIONS\r\n"
+ "DAV: 1\r\n\r\n");
+}
+
+// Writes PROPFIND properties for a collection element
+static void print_props(struct mg_connection *conn, const char* uri,
+ struct mgstat* st) {
+ char mtime[64];
+ gmt_time_string(mtime, sizeof(mtime), &st->mtime);
+ conn->num_bytes_sent += mg_printf(conn,
+ "<d:response>"
+ "<d:href>%s</d:href>"
+ "<d:propstat>"
+ "<d:prop>"
+ "<d:resourcetype>%s</d:resourcetype>"
+ "<d:getcontentlength>%" INT64_FMT "</d:getcontentlength>"
+ "<d:getlastmodified>%s</d:getlastmodified>"
+ "</d:prop>"
+ "<d:status>HTTP/1.1 200 OK</d:status>"
+ "</d:propstat>"
+ "</d:response>\n",
+ uri,
+ st->is_directory ? "<d:collection/>" : "",
+ st->size,
+ mtime);
+}
+
+static void print_dav_dir_entry(struct de *de, void *data) {
+ char href[PATH_MAX];
+ struct mg_connection *conn = (struct mg_connection *) data;
+ mg_snprintf(conn, href, sizeof(href), "%s%s",
+ conn->request_info.uri, de->file_name);
+ print_props(conn, href, &de->st);
+}
+
+static void handle_propfind(struct mg_connection *conn, const char* path,
+ struct mgstat* st) {
+ const char *depth = mg_get_header(conn, "Depth");
+
+ conn->must_close = 1;
+ conn->request_info.status_code = 207;
+ mg_printf(conn, "HTTP/1.1 207 Multi-Status\r\n"
+ "Connection: close\r\n"
+ "Content-Type: text/xml; charset=utf-8\r\n\r\n");
+
+ conn->num_bytes_sent += mg_printf(conn,
+ "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
+ "<d:multistatus xmlns:d='DAV:'>\n");
+
+ // Print properties for the requested resource itself
+ print_props(conn, conn->request_info.uri, st);
+
+ // If it is a directory, print directory entries too if Depth is not 0
+ if (st->is_directory &&
+ !mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes") &&
+ (depth == NULL || strcmp(depth, "0") != 0)) {
+ scan_directory(conn, path, conn, &print_dav_dir_entry);
+ }
+
+ conn->num_bytes_sent += mg_printf(conn, "%s\n", "</d:multistatus>");
+}
+
+// This is the heart of the Mongoose's logic.
+// This function is called when the request is read, parsed and validated,
+// and Mongoose must decide what action to take: serve a file, or
+// a directory, or call embedded function, etcetera.
+static void handle_request(struct mg_connection *conn) {
+ struct mg_request_info *ri = &conn->request_info;
+ char path[PATH_MAX];
+ int stat_result, uri_len;
+ struct mgstat st;
+
+ if ((conn->request_info.query_string = strchr(ri->uri, '?')) != NULL) {
+ * conn->request_info.query_string++ = '\0';
+ }
+ uri_len = strlen(ri->uri);
+ url_decode(ri->uri, (size_t)uri_len, ri->uri, (size_t)(uri_len + 1), 0);
+ remove_double_dots_and_double_slashes(ri->uri);
+ stat_result = convert_uri_to_file_name(conn, path, sizeof(path), &st);
+
+ DEBUG_TRACE(("%s", ri->uri));
+ if (!check_authorization(conn, path)) {
+ send_authorization_request(conn);
+ } else if (call_user(conn, MG_NEW_REQUEST) != NULL) {
+ // Do nothing, callback has served the request
+ } else if (!strcmp(ri->request_method, "OPTIONS")) {
+ send_options(conn);
+ } else if (strstr(path, PASSWORDS_FILE_NAME)) {
+ // Do not allow to view passwords files
+ send_http_error(conn, 403, "Forbidden", "Access Forbidden");
+ } else if (conn->ctx->config[DOCUMENT_ROOT] == NULL) {
+ send_http_error(conn, 404, "Not Found", "Not Found");
+ } else if ((!strcmp(ri->request_method, "PUT") ||
+ !strcmp(ri->request_method, "DELETE")) &&
+ (conn->ctx->config[PUT_DELETE_PASSWORDS_FILE] == NULL ||
+ !is_authorized_for_put(conn))) {
+ send_authorization_request(conn);
+ } else if (!strcmp(ri->request_method, "PUT")) {
+ put_file(conn, path);
+ } else if (!strcmp(ri->request_method, "DELETE")) {
+ if (mg_remove(path) == 0) {
+ send_http_error(conn, 200, "OK", "");
+ } else {
+ send_http_error(conn, 500, http_500_error, "remove(%s): %s", path,
+ strerror(ERRNO));
+ }
+ } else if (stat_result != 0) {
+ send_http_error(conn, 404, "Not Found", "%s", "File not found");
+ } else if (st.is_directory && ri->uri[uri_len - 1] != '/') {
+ (void) mg_printf(conn,
+ "HTTP/1.1 301 Moved Permanently\r\n"
+ "Location: %s/\r\n\r\n", ri->uri);
+ } else if (!strcmp(ri->request_method, "PROPFIND")) {
+ handle_propfind(conn, path, &st);
+ } else if (st.is_directory &&
+ !substitute_index_file(conn, path, sizeof(path), &st)) {
+ if (!mg_strcasecmp(conn->ctx->config[ENABLE_DIRECTORY_LISTING], "yes")) {
+ handle_directory_request(conn, path);
+ } else {
+ send_http_error(conn, 403, "Directory Listing Denied",
+ "Directory listing denied");
+ }
#if !defined(NO_CGI)
- } else if (match_extension(path,
- conn->ctx->options[OPT_CGI_EXTENSIONS])) {
- if (strcmp(ri->request_method, "POST") &&
- strcmp(ri->request_method, "GET")) {
- send_error(conn, 501, "Not Implemented",
- "Method %s is not implemented", ri->request_method);
- } else {
- send_cgi(conn, path);
- }
-#endif /* NO_CGI */
-#if !defined(NO_SSI)
- } else if (match_extension(path,
- conn->ctx->options[OPT_SSI_EXTENSIONS])) {
- send_ssi(conn, path);
-#endif /* NO_SSI */
- } else if (is_not_modified(conn, &st)) {
- send_error(conn, 304, "Not Modified", "");
- } else {
- send_file(conn, path, &st);
- }
-}
-
-static void
-close_all_listening_sockets(struct mg_context *ctx)
-{
- int i;
-
- for (i = 0; i < ctx->num_listeners; i++)
- (void) closesocket(ctx->listeners[i].sock);
- ctx->num_listeners = 0;
-}
-
-static bool_t
-set_ports_option(struct mg_context *ctx, const char *list)
-{
- SOCKET sock;
- int is_ssl;
- struct vec vec;
- struct socket *listener;
-
- close_all_listening_sockets(ctx);
- assert(ctx->num_listeners == 0);
-
- while ((list = next_option(list, &vec, NULL)) != NULL) {
-
- is_ssl = vec.ptr[vec.len - 1] == 's' ? TRUE : FALSE;
- listener = ctx->listeners + ctx->num_listeners;
-
- if (ctx->num_listeners >=
- (int) (ARRAY_SIZE(ctx->listeners) - 1)) {
- cry(fc(ctx), "%s", "Too many listeninig sockets");
- return (FALSE);
- } else if ((sock = mg_open_listening_port(ctx,
- vec.ptr, &listener->lsa)) == INVALID_SOCKET) {
- cry(fc(ctx), "cannot bind to %.*s", vec.len, vec.ptr);
- return (FALSE);
- } else if (is_ssl == TRUE && ctx->ssl_ctx == NULL) {
- (void) closesocket(sock);
- cry(fc(ctx), "cannot add SSL socket, please specify "
- "-ssl_cert option BEFORE -ports option");
- return (FALSE);
- } else {
- listener->sock = sock;
- listener->is_ssl = is_ssl;
- ctx->num_listeners++;
- }
- }
-
- return (TRUE);
-}
-
-static void
-log_header(const struct mg_connection *conn, const char *header, FILE *fp)
-{
- const char *header_value;
-
- if ((header_value = mg_get_header(conn, header)) == NULL) {
- (void) fprintf(fp, "%s", " -");
- } else {
- (void) fprintf(fp, " \"%s\"", header_value);
- }
-}
-
-static void
-log_access(const struct mg_connection *conn)
-{
- const struct mg_request_info *ri;
- char date[64];
-
- if (conn->ctx->access_log == NULL)
- return;
-
- (void) strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z",
- localtime(&conn->birth_time));
-
- ri = &conn->request_info;
-
- flockfile(conn->ctx->access_log);
-
- (void) fprintf(conn->ctx->access_log,
- "%s - %s [%s] \"%s %s HTTP/%s\" %d %" INT64_FMT,
- inet_ntoa(conn->client.rsa.u.sin.sin_addr),
- ri->remote_user == NULL ? "-" : ri->remote_user,
- date,
- ri->request_method ? ri->request_method : "-",
- ri->uri ? ri->uri : "-",
- ri->http_version,
- conn->request_info.status_code, conn->num_bytes_sent);
- log_header(conn, "Referer", conn->ctx->access_log);
- log_header(conn, "User-Agent", conn->ctx->access_log);
- (void) fputc('\n', conn->ctx->access_log);
- (void) fflush(conn->ctx->access_log);
-
- funlockfile(conn->ctx->access_log);
-}
-
-static bool_t
-isbyte(int n) {
- return (n >= 0 && n <= 255);
-}
-
-/*
- * Verify given socket address against the ACL.
- * Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
- */
-static int
-check_acl(struct mg_context *ctx, const char *list, const struct usa *usa)
-{
- int a, b, c, d, n, mask, allowed;
- char flag;
- uint32_t acl_subnet, acl_mask, remote_ip;
- struct vec vec;
-
- (void) memcpy(&remote_ip, &usa->u.sin.sin_addr, sizeof(remote_ip));
-
- /* If any ACL is set, deny by default */
- allowed = '-';
-
- while ((list = next_option(list, &vec, NULL)) != NULL) {
-
- mask = 32;
-
- if (sscanf(vec.ptr, "%c%d.%d.%d.%d%n",
- &flag, &a, &b, &c, &d, &n) != 5) {
- cry(fc(ctx),
- "%s: subnet must be [+|-]x.x.x.x[/x]", __func__);
- return (-1);
- } else if (flag != '+' && flag != '-') {
- cry(fc(ctx), "%s: flag must be + or -: [%s]",
- __func__, vec.ptr);
- return (-1);
- } else if (!isbyte(a)||!isbyte(b)||!isbyte(c)||!isbyte(d)) {
- cry(fc(ctx),
- "%s: bad ip address: [%s]", __func__, vec.ptr);
- return (-1);
- } else if (sscanf(vec.ptr + n, "/%d", &mask) == 0) {
- /* Do nothing, no mask specified */
- } else if (mask < 0 || mask > 32) {
- cry(fc(ctx), "%s: bad subnet mask: %d [%s]",
- __func__, n, vec.ptr);
- return (-1);
- }
-
- acl_subnet = ((uint32_t)a << 24) | ((uint32_t)b << 16) | ((uint32_t)c << 8) | (uint32_t)d;
- acl_mask = mask ? 0xffffffffU << (32 - mask) : 0;
-
- if (acl_subnet == (ntohl(remote_ip) & acl_mask))
- allowed = flag;
- }
-
- return (allowed == '+' ? 1 : 0);
-}
-
-static void
-add_to_set(SOCKET fd, fd_set *set, int *max_fd)
-{
- FD_SET(fd, set);
- if (fd > (SOCKET) *max_fd)
- *max_fd = (int) fd;
-}
-
-/*
- * Deallocate mongoose context, free up the resources
- */
-static void
-mg_fini(struct mg_context *ctx)
-{
- int i;
-
- close_all_listening_sockets(ctx);
-
- /* Wait until all threads finish */
- (void) pthread_mutex_lock(&ctx->thr_mutex);
- while (ctx->num_threads > 0)
- (void) pthread_cond_wait(&ctx->thr_cond, &ctx->thr_mutex);
- (void) pthread_mutex_unlock(&ctx->thr_mutex);
-
- /* Deallocate all registered callbacks */
- for (i = 0; i < ctx->num_callbacks; i++)
- if (ctx->callbacks[i].uri_regex != NULL)
- free(ctx->callbacks[i].uri_regex);
-
- /* Deallocate all options */
- for (i = 0; i < NUM_OPTIONS; i++)
- if (ctx->options[i] != NULL)
- free(ctx->options[i]);
-
- /* Close log files */
- if (ctx->access_log)
- (void) fclose(ctx->access_log);
- if (ctx->error_log)
- (void) fclose(ctx->error_log);
-
- /* Deallocate SSL context */
- if (ctx->ssl_ctx)
- SSL_CTX_free(ctx->ssl_ctx);
-
- /* Deallocate mutexes and condvars */
- for (i = 0; i < NUM_OPTIONS; i++)
- (void) pthread_mutex_destroy(&ctx->opt_mutex[i]);
-
- (void) pthread_mutex_destroy(&ctx->thr_mutex);
- (void) pthread_mutex_destroy(&ctx->bind_mutex);
- (void) pthread_cond_destroy(&ctx->thr_cond);
- (void) pthread_cond_destroy(&ctx->empty_cond);
- (void) pthread_cond_destroy(&ctx->full_cond);
-
- /* Signal mg_stop() that we're done */
- ctx->stop_flag = 2;
-}
+ } else if (match_prefix(conn->ctx->config[CGI_EXTENSIONS],
+ strlen(conn->ctx->config[CGI_EXTENSIONS]),
+ path) > 0) {
+ if (strcmp(ri->request_method, "POST") &&
+ strcmp(ri->request_method, "GET")) {
+ send_http_error(conn, 501, "Not Implemented",
+ "Method %s is not implemented", ri->request_method);
+ } else {
+ handle_cgi_request(conn, path);
+ }
+#endif // !NO_CGI
+ } else if (match_prefix(conn->ctx->config[SSI_EXTENSIONS],
+ strlen(conn->ctx->config[SSI_EXTENSIONS]),
+ path) > 0) {
+ handle_ssi_file_request(conn, path);
+ } else if (is_not_modified(conn, &st)) {
+ send_http_error(conn, 304, "Not Modified", "");
+ } else {
+ handle_file_request(conn, path, &st);
+ }
+}
+
+static void close_all_listening_sockets(struct mg_context *ctx) {
+ struct socket *sp, *tmp;
+ for (sp = ctx->listening_sockets; sp != NULL; sp = tmp) {
+ tmp = sp->next;
+ (void) closesocket(sp->sock);
+ free(sp);
+ }
+}
+
+// Valid listening port specification is: [ip_address:]port[s]
+// Examples: 80, 443s, 127.0.0.1:3128,1.2.3.4:8080s
+// TODO(lsm): add parsing of the IPv6 address
+static int parse_port_string(const struct vec *vec, struct socket *so) {
+ int a, b, c, d, port, len;
+
+ // MacOS needs that. If we do not zero it, subsequent bind() will fail.
+ // Also, all-zeroes in the socket address means binding to all addresses
+ // for both IPv4 and IPv6 (INADDR_ANY and IN6ADDR_ANY_INIT).
+ memset(so, 0, sizeof(*so));
+
+ if (sscanf(vec->ptr, "%d.%d.%d.%d:%d%n", &a, &b, &c, &d, &port, &len) == 5) {
+ // Bind to a specific IPv4 address
+ so->lsa.sin.sin_addr.s_addr = htonl((a << 24) | (b << 16) | (c << 8) | d);
+ } else if (sscanf(vec->ptr, "%d%n", &port, &len) != 1 ||
+ len <= 0 ||
+ len > (int) vec->len ||
+ (vec->ptr[len] && vec->ptr[len] != 's' && vec->ptr[len] != ',')) {
+ return 0;
+ }
+
+ so->is_ssl = vec->ptr[len] == 's';
+#if defined(USE_IPV6)
+ so->lsa.sin6.sin6_family = AF_INET6;
+ so->lsa.sin6.sin6_port = htons((uint16_t) port);
+#else
+ so->lsa.sin.sin_family = AF_INET;
+ so->lsa.sin.sin_port = htons((uint16_t) port);
+#endif
+ return 1;
+}
+
+static int set_ports_option(struct mg_context *ctx) {
+ const char *list = ctx->config[LISTENING_PORTS];
+ int on = 1, success = 1;
+ SOCKET sock;
+ struct vec vec;
+ struct socket so, *listener;
+
+ while (success && (list = next_option(list, &vec, NULL)) != NULL) {
+ if (!parse_port_string(&vec, &so)) {
+ cry(fc(ctx), "%s: %.*s: invalid port spec. Expecting list of: %s",
+ __func__, vec.len, vec.ptr, "[IP_ADDRESS:]PORT[s|p]");
+ success = 0;
+ } else if (so.is_ssl && ctx->ssl_ctx == NULL) {
+ cry(fc(ctx), "Cannot add SSL socket, is -ssl_certificate option set?");
+ success = 0;
+ } else if ((sock = socket(so.lsa.sa.sa_family, SOCK_STREAM, 6)) ==
+ INVALID_SOCKET ||
#if !defined(_WIN32)
-static bool_t
-set_uid_option(struct mg_context *ctx, const char *uid)
-{
- struct passwd *pw;
- int retval = FALSE;
-
- if ((pw = getpwnam(uid)) == NULL)
- cry(fc(ctx), "%s: unknown user [%s]", __func__, uid);
- else if (setgid(pw->pw_gid) == -1)
- cry(fc(ctx), "%s: setgid(%s): %s",
- __func__, uid, strerror(errno));
- else if (setuid(pw->pw_uid) == -1)
- cry(fc(ctx), "%s: setuid(%s): %s",
- __func__, uid, strerror(errno));
- else
- retval = TRUE;
-
- return (retval);
-}
-#endif /* !_WIN32 */
+ // On Windows, SO_REUSEADDR is recommended only for
+ // broadcast UDP sockets
+ setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &on,
+ sizeof(on)) != 0 ||
+#endif // !_WIN32
+ // Set TCP keep-alive. This is needed because if HTTP-level
+ // keep-alive is enabled, and client resets the connection,
+ // server won't get TCP FIN or RST and will keep the connection
+ // open forever. With TCP keep-alive, next keep-alive
+ // handshake will figure out that the client is down and
+ // will close the server end.
+ // Thanks to Igor Klopov who suggested the patch.
+ setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (void *) &on,
+ sizeof(on)) != 0 ||
+ bind(sock, &so.lsa.sa, sizeof(so.lsa)) != 0 ||
+ listen(sock, 100) != 0) {
+ closesocket(sock);
+ cry(fc(ctx), "%s: cannot bind to %.*s: %s", __func__,
+ vec.len, vec.ptr, strerror(ERRNO));
+ success = 0;
+ } else if ((listener = (struct socket *)
+ calloc(1, sizeof(*listener))) == NULL) {
+ closesocket(sock);
+ cry(fc(ctx), "%s: %s", __func__, strerror(ERRNO));
+ success = 0;
+ } else {
+ *listener = so;
+ listener->sock = sock;
+ set_close_on_exec(listener->sock);
+ listener->next = ctx->listening_sockets;
+ ctx->listening_sockets = listener;
+ }
+ }
+
+ if (!success) {
+ close_all_listening_sockets(ctx);
+ }
+
+ return success;
+}
+
+static void log_header(const struct mg_connection *conn, const char *header,
+ FILE *fp) {
+ const char *header_value;
+
+ if ((header_value = mg_get_header(conn, header)) == NULL) {
+ (void) fprintf(fp, "%s", " -");
+ } else {
+ (void) fprintf(fp, " \"%s\"", header_value);
+ }
+}
+
+static void log_access(const struct mg_connection *conn) {
+ const struct mg_request_info *ri;
+ FILE *fp;
+ char date[64], src_addr[20];
+
+ fp = conn->ctx->config[ACCESS_LOG_FILE] == NULL ? NULL :
+ mg_fopen(conn->ctx->config[ACCESS_LOG_FILE], "a+");
+
+ if (fp == NULL)
+ return;
+
+ strftime(date, sizeof(date), "%d/%b/%Y:%H:%M:%S %z",
+ localtime(&conn->birth_time));
+
+ ri = &conn->request_info;
+ flockfile(fp);
+
+ sockaddr_to_string(src_addr, sizeof(src_addr), &conn->client.rsa);
+ fprintf(fp, "%s - %s [%s] \"%s %s HTTP/%s\" %d %" INT64_FMT,
+ src_addr, ri->remote_user == NULL ? "-" : ri->remote_user, date,
+ ri->request_method ? ri->request_method : "-",
+ ri->uri ? ri->uri : "-", ri->http_version,
+ conn->request_info.status_code, conn->num_bytes_sent);
+ log_header(conn, "Referer", fp);
+ log_header(conn, "User-Agent", fp);
+ fputc('\n', fp);
+ fflush(fp);
+
+ funlockfile(fp);
+ fclose(fp);
+}
+
+static int isbyte(int n) {
+ return n >= 0 && n <= 255;
+}
+
+// Verify given socket address against the ACL.
+// Return -1 if ACL is malformed, 0 if address is disallowed, 1 if allowed.
+static int check_acl(struct mg_context *ctx, const union usa *usa) {
+ int a, b, c, d, n, mask, allowed;
+ char flag;
+ uint32_t acl_subnet, acl_mask, remote_ip;
+ struct vec vec;
+ const char *list = ctx->config[ACCESS_CONTROL_LIST];
+
+ if (list == NULL) {
+ return 1;
+ }
+
+ (void) memcpy(&remote_ip, &usa->sin.sin_addr, sizeof(remote_ip));
+
+ // If any ACL is set, deny by default
+ allowed = '-';
+
+ while ((list = next_option(list, &vec, NULL)) != NULL) {
+ mask = 32;
+
+ if (sscanf(vec.ptr, "%c%d.%d.%d.%d%n", &flag, &a, &b, &c, &d, &n) != 5) {
+ cry(fc(ctx), "%s: subnet must be [+|-]x.x.x.x[/x]", __func__);
+ return -1;
+ } else if (flag != '+' && flag != '-') {
+ cry(fc(ctx), "%s: flag must be + or -: [%s]", __func__, vec.ptr);
+ return -1;
+ } else if (!isbyte(a)||!isbyte(b)||!isbyte(c)||!isbyte(d)) {
+ cry(fc(ctx), "%s: bad ip address: [%s]", __func__, vec.ptr);
+ return -1;
+ } else if (sscanf(vec.ptr + n, "/%d", &mask) == 0) {
+ // Do nothing, no mask specified
+ } else if (mask < 0 || mask > 32) {
+ cry(fc(ctx), "%s: bad subnet mask: %d [%s]", __func__, n, vec.ptr);
+ return -1;
+ }
-#if !defined(NO_SSL)
-void
-mg_set_ssl_password_callback(struct mg_context *ctx, mg_spcb_t func)
-{
- ctx->ssl_password_callback = func;
+ acl_subnet = (a << 24) | (b << 16) | (c << 8) | d;
+ acl_mask = mask ? 0xffffffffU << (32 - mask) : 0;
+
+ if (acl_subnet == (ntohl(remote_ip) & acl_mask)) {
+ allowed = flag;
+ }
+ }
+
+ return allowed == '+';
+}
+
+static void add_to_set(SOCKET fd, fd_set *set, int *max_fd) {
+ FD_SET(fd, set);
+ if (fd > (SOCKET) *max_fd) {
+ *max_fd = (int) fd;
+ }
}
+#if !defined(_WIN32)
+static int set_uid_option(struct mg_context *ctx) {
+ struct passwd *pw;
+ const char *uid = ctx->config[RUN_AS_USER];
+ int success = 0;
+
+ if (uid == NULL) {
+ success = 1;
+ } else {
+ if ((pw = getpwnam(uid)) == NULL) {
+ cry(fc(ctx), "%s: unknown user [%s]", __func__, uid);
+ } else if (setgid(pw->pw_gid) == -1) {
+ cry(fc(ctx), "%s: setgid(%s): %s", __func__, uid, strerror(errno));
+ } else if (setuid(pw->pw_uid) == -1) {
+ cry(fc(ctx), "%s: setuid(%s): %s", __func__, uid, strerror(errno));
+ } else {
+ success = 1;
+ }
+ }
+
+ return success;
+}
+#endif // !_WIN32
+
+#if !defined(NO_SSL)
static pthread_mutex_t *ssl_mutexes;
-static void
-ssl_locking_callback(int mode, int mutex_num, const char *file, int line)
-{
- line = 0; /* Unused */
- file = NULL; /* Unused */
+// Return OpenSSL error message
+static const char *ssl_error(void) {
+ unsigned long err;
+ err = ERR_get_error();
+ return err == 0 ? "" : ERR_error_string(err, NULL);
+}
+
+static void ssl_locking_callback(int mode, int mutex_num, const char *file,
+ int line) {
+ line = 0; // Unused
+ file = NULL; // Unused
- if (mode & CRYPTO_LOCK)
- (void) pthread_mutex_lock(&ssl_mutexes[mutex_num]);
- else
- (void) pthread_mutex_unlock(&ssl_mutexes[mutex_num]);
+ if (mode & CRYPTO_LOCK) {
+ (void) pthread_mutex_lock(&ssl_mutexes[mutex_num]);
+ } else {
+ (void) pthread_mutex_unlock(&ssl_mutexes[mutex_num]);
+ }
}
-static unsigned long
-ssl_id_callback(void)
-{
- return ((unsigned long) pthread_self());
+static unsigned long ssl_id_callback(void) {
+ return (unsigned long) pthread_self();
}
-static bool_t
-load_dll(struct mg_context *ctx, const char *dll_name, struct ssl_func *sw)
-{
- union {void *p; void (*fp)(void);} u;
- void *dll_handle;
- struct ssl_func *fp;
+#if !defined(NO_SSL_DL)
+static int load_dll(struct mg_context *ctx, const char *dll_name,
+ struct ssl_func *sw) {
+ union {void *p; void (*fp)(void);} u;
+ void *dll_handle;
+ struct ssl_func *fp;
- if ((dll_handle = dlopen(dll_name, RTLD_LAZY)) == NULL) {
- cry(fc(ctx), "%s: cannot load %s", __func__, dll_name);
- return (FALSE);
- }
+ if ((dll_handle = dlopen(dll_name, RTLD_LAZY)) == NULL) {
+ cry(fc(ctx), "%s: cannot load %s", __func__, dll_name);
+ return 0;
+ }
- for (fp = sw; fp->name != NULL; fp++) {
+ for (fp = sw; fp->name != NULL; fp++) {
#ifdef _WIN32
- /* GetProcAddress() returns pointer to function */
- u.fp = (void (*)(void)) dlsym(dll_handle, fp->name);
+ // GetProcAddress() returns pointer to function
+ u.fp = (void (*)(void)) dlsym(dll_handle, fp->name);
#else
- /*
- * dlsym() on UNIX returns void *.
- * ISO C forbids casts of data pointers to function
- * pointers. We need to use a union to make a cast.
- */
- u.p = dlsym(dll_handle, fp->name);
-#endif /* _WIN32 */
- if (u.fp == NULL) {
- cry(fc(ctx), "%s: cannot find %s", __func__, fp->name);
- return (FALSE);
- } else {
- fp->ptr = u.fp;
- }
- }
-
- return (TRUE);
-}
-
-/*
- * Dynamically load SSL library. Set up ctx->ssl_ctx pointer.
- */
-static bool_t
-set_ssl_option(struct mg_context *ctx, const char *pem)
-{
- SSL_CTX *CTX;
- int i, size, retval = FALSE;
-
- if (load_dll(ctx, SSL_LIB, ssl_sw) == FALSE ||
- load_dll(ctx, CRYPTO_LIB, crypto_sw) == FALSE)
- return (FALSE);
-
- /* Initialize SSL crap */
- SSL_library_init();
-
- if ((CTX = SSL_CTX_new(SSLv23_server_method())) == NULL)
- cry(fc(ctx), "SSL_CTX_new error");
- else if (ctx->ssl_password_callback != NULL)
- SSL_CTX_set_default_passwd_cb(CTX, ctx->ssl_password_callback);
-
- if (CTX != NULL && SSL_CTX_use_certificate_file(
- CTX, pem, SSL_FILETYPE_PEM) == 0)
- cry(fc(ctx), "%s: cannot open %s", __func__, pem);
- else if (CTX != NULL && SSL_CTX_use_PrivateKey_file(
- CTX, pem, SSL_FILETYPE_PEM) == 0)
- cry(fc(ctx), "%s: cannot open %s", NULL, pem);
- else
- retval = TRUE;
-
- /*
- * Initialize locking callbacks, needed for thread safety.
- * http://www.openssl.org/support/faq.html#PROG1
- */
- size = sizeof(pthread_mutex_t) * CRYPTO_num_locks();
- if ((ssl_mutexes = (pthread_mutex_t *) malloc(size)) == NULL) {
- cry(fc(ctx), "%s: cannot allocate mutexes", __func__);
- return (FALSE);
- }
-
- for (i = 0; i < CRYPTO_num_locks(); i++)
- pthread_mutex_init(&ssl_mutexes[i], NULL);
-
- CRYPTO_set_locking_callback(&ssl_locking_callback);
- CRYPTO_set_id_callback(&ssl_id_callback);
-
- /* Done with everything. Save the context. */
- ctx->ssl_ctx = CTX;
-
- return (retval);
-}
-#endif /* !NO_SSL */
-
-static bool_t
-open_log_file(struct mg_context *ctx, FILE **fpp, const char *path)
-{
- bool_t retval = TRUE;
-
- if (*fpp != NULL)
- (void) fclose(*fpp);
-
- if (path == NULL) {
- *fpp = NULL;
- } else if ((*fpp = mg_fopen(path, "a")) == NULL) {
- cry(fc(ctx), "%s(%s): %s", __func__, path, strerror(errno));
- retval = FALSE;
- } else {
- set_close_on_exec(fileno(*fpp));
- }
-
- return (retval);
-}
-
-static bool_t
-set_alog_option(struct mg_context *ctx, const char *path)
-{
- return (open_log_file(ctx, &ctx->access_log, path));
-}
-
-static bool_t
-set_elog_option(struct mg_context *ctx, const char *path)
-{
- return (open_log_file(ctx, &ctx->error_log, path));
-}
-
-static bool_t
-set_gpass_option(struct mg_context *ctx, const char *path)
-{
- struct mgstat mgstat;
- ctx = NULL;
- return (mg_stat(path, &mgstat) == 0);
-}
-
-static bool_t
-set_max_threads_option(struct mg_context *ctx, const char *str)
-{
- ctx->max_threads = atoi(str);
- return (TRUE);
-}
-
-static bool_t
-set_acl_option(struct mg_context *ctx, const char *acl)
-{
- struct usa fake;
-
- return (check_acl(ctx, acl, &fake) != -1);
-}
-
-static void admin_page(struct mg_connection *,
- const struct mg_request_info *, void *);
-static bool_t
-set_admin_uri_option(struct mg_context *ctx, const char *uri)
-{
- mg_set_uri_callback(ctx, uri, &admin_page, NULL);
- return (TRUE);
-}
-
-/*
- * Check if the comma-separated list of options has a format of key-value
- * pairs: "k1=v1,k2=v2". Return FALSE if any entry has invalid key or value.
- */
-static bool_t
-set_kv_list_option(struct mg_context *ctx, const char *str)
-{
- const char *list;
- struct vec key, value;
+ // dlsym() on UNIX returns void *. ISO C forbids casts of data pointers to
+ // function pointers. We need to use a union to make a cast.
+ u.p = dlsym(dll_handle, fp->name);
+#endif // _WIN32
+ if (u.fp == NULL) {
+ cry(fc(ctx), "%s: %s: cannot find %s", __func__, dll_name, fp->name);
+ return 0;
+ } else {
+ fp->ptr = u.fp;
+ }
+ }
+
+ return 1;
+}
+#endif // NO_SSL_DL
+
+// Dynamically load SSL library. Set up ctx->ssl_ctx pointer.
+static int set_ssl_option(struct mg_context *ctx) {
+ struct mg_request_info request_info;
+ SSL_CTX *CTX;
+ int i, size;
+ const char *pem = ctx->config[SSL_CERTIFICATE];
+ const char *chain = ctx->config[SSL_CHAIN_FILE];
+
+ if (pem == NULL) {
+ return 1;
+ }
+
+#if !defined(NO_SSL_DL)
+ if (!load_dll(ctx, SSL_LIB, ssl_sw) ||
+ !load_dll(ctx, CRYPTO_LIB, crypto_sw)) {
+ return 0;
+ }
+#endif // NO_SSL_DL
+
+ // Initialize SSL crap
+ SSL_library_init();
+ SSL_load_error_strings();
+
+ if ((CTX = SSL_CTX_new(SSLv23_server_method())) == NULL) {
+ cry(fc(ctx), "SSL_CTX_new error: %s", ssl_error());
+ } else if (ctx->user_callback != NULL) {
+ memset(&request_info, 0, sizeof(request_info));
+ request_info.user_data = ctx->user_data;
+ ctx->user_callback(MG_INIT_SSL, (struct mg_connection *) CTX,
+ &request_info);
+ }
+
+ if (CTX != NULL && SSL_CTX_use_certificate_file(CTX, pem,
+ SSL_FILETYPE_PEM) == 0) {
+ cry(fc(ctx), "%s: cannot open %s: %s", __func__, pem, ssl_error());
+ return 0;
+ } else if (CTX != NULL && SSL_CTX_use_PrivateKey_file(CTX, pem,
+ SSL_FILETYPE_PEM) == 0) {
+ cry(fc(ctx), "%s: cannot open %s: %s", NULL, pem, ssl_error());
+ return 0;
+ }
+
+ if (CTX != NULL && chain != NULL &&
+ SSL_CTX_use_certificate_chain_file(CTX, chain) == 0) {
+ cry(fc(ctx), "%s: cannot open %s: %s", NULL, chain, ssl_error());
+ return 0;
+ }
+
+ // Initialize locking callbacks, needed for thread safety.
+ // http://www.openssl.org/support/faq.html#PROG1
+ size = sizeof(pthread_mutex_t) * CRYPTO_num_locks();
+ if ((ssl_mutexes = (pthread_mutex_t *) malloc((size_t)size)) == NULL) {
+ cry(fc(ctx), "%s: cannot allocate mutexes: %s", __func__, ssl_error());
+ return 0;
+ }
+
+ for (i = 0; i < CRYPTO_num_locks(); i++) {
+ pthread_mutex_init(&ssl_mutexes[i], NULL);
+ }
+
+ CRYPTO_set_locking_callback(&ssl_locking_callback);
+ CRYPTO_set_id_callback(&ssl_id_callback);
+
+ // Done with everything. Save the context.
+ ctx->ssl_ctx = CTX;
+
+ return 1;
+}
+
+static void uninitialize_ssl(struct mg_context *ctx) {
+ int i;
+ if (ctx->ssl_ctx != NULL) {
+ CRYPTO_set_locking_callback(NULL);
+ for (i = 0; i < CRYPTO_num_locks(); i++) {
+ pthread_mutex_destroy(&ssl_mutexes[i]);
+ }
+ CRYPTO_set_locking_callback(NULL);
+ CRYPTO_set_id_callback(NULL);
+ }
+}
+#endif // !NO_SSL
+
+static int set_gpass_option(struct mg_context *ctx) {
+ struct mgstat mgstat;
+ const char *path = ctx->config[GLOBAL_PASSWORDS_FILE];
+ return path == NULL || mg_stat(path, &mgstat) == 0;
+}
+
+static int set_acl_option(struct mg_context *ctx) {
+ union usa fake;
+ return check_acl(ctx, &fake) != -1;
+}
+
+static void reset_per_request_attributes(struct mg_connection *conn) {
+ struct mg_request_info *ri = &conn->request_info;
+
+ // Reset request info attributes. DO NOT TOUCH is_ssl, remote_ip, remote_port
+ ri->remote_user = ri->request_method = ri->uri = ri->http_version =
+ conn->path_info = NULL;
+ ri->num_headers = 0;
+ ri->status_code = -1;
+
+ conn->num_bytes_sent = conn->consumed_content = 0;
+ conn->content_len = -1;
+ conn->request_len = conn->data_len = 0;
+ conn->must_close = 0;
+}
+
+static void close_socket_gracefully(SOCKET sock) {
+ char buf[BUFSIZ];
+ struct linger linger;
+ int n;
+
+ // Set linger option to avoid socket hanging out after close. This prevent
+ // ephemeral port exhaust problem under high QPS.
+ linger.l_onoff = 1;
+ linger.l_linger = 1;
+ setsockopt(sock, SOL_SOCKET, SO_LINGER, (void *) &linger, sizeof(linger));
+
+ // Send FIN to the client
+ (void) shutdown(sock, SHUT_WR);
+ set_non_blocking_mode(sock);
+
+ // Read and discard pending data. If we do not do that and close the
+ // socket, the data in the send buffer may be discarded. This
+ // behaviour is seen on Windows, when client keeps sending data
+ // when server decide to close the connection; then when client
+ // does recv() it gets no data back.
+ do {
+ n = pull(NULL, sock, NULL, buf, sizeof(buf));
+ } while (n > 0);
+
+ // Now we know that our FIN is ACK-ed, safe to close
+ (void) closesocket(sock);
+}
+
+static void close_connection(struct mg_connection *conn) {
+ if (conn->ssl) {
+ SSL_free(conn->ssl);
+ conn->ssl = NULL;
+ }
+
+ if (conn->client.sock != INVALID_SOCKET) {
+ close_socket_gracefully(conn->client.sock);
+ }
+}
+
+static void discard_current_request_from_buffer(struct mg_connection *conn) {
+ char *buffered;
+ int buffered_len, body_len;
+
+ buffered = conn->buf + conn->request_len;
+ buffered_len = conn->data_len - conn->request_len;
+ assert(buffered_len >= 0);
+
+ if (conn->content_len <= 0) {
+ // Protect from negative Content-Length, too
+ body_len = 0;
+ } else if (conn->content_len < (int64_t) buffered_len) {
+ body_len = (int) conn->content_len;
+ } else {
+ body_len = buffered_len;
+ }
+
+ conn->data_len -= conn->request_len + body_len;
+ memmove(conn->buf, conn->buf + conn->request_len + body_len,
+ (size_t) conn->data_len);
+}
+
+static int is_valid_uri(const char *uri) {
+ // Conform to http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html#sec5.1.2
+ // URI can be an asterisk (*) or should start with slash.
+ return uri[0] == '/' || (uri[0] == '*' && uri[1] == '\0');
+}
+
+static void process_new_connection(struct mg_connection *conn) {
+ struct mg_request_info *ri = &conn->request_info;
+ int keep_alive_enabled;
+ const char *cl;
+
+ keep_alive_enabled = !strcmp(conn->ctx->config[ENABLE_KEEP_ALIVE], "yes");
+
+ do {
+ reset_per_request_attributes(conn);
+ conn->request_len = read_request(NULL, conn->client.sock, conn->ssl,
+ conn->buf, conn->buf_size,
+ &conn->data_len);
+ assert(conn->data_len >= conn->request_len);
+ if (conn->request_len == 0 && conn->data_len == conn->buf_size) {
+ send_http_error(conn, 413, "Request Too Large", "");
+ return;
+ } if (conn->request_len <= 0) {
+ return; // Remote end closed the connection
+ }
+
+ // Nul-terminate the request cause parse_http_request() uses sscanf
+ conn->buf[conn->request_len - 1] = '\0';
+ if (!parse_http_request(conn->buf, ri) || !is_valid_uri(ri->uri)) {
+ // Do not put garbage in the access log, just send it back to the client
+ send_http_error(conn, 400, "Bad Request",
+ "Cannot parse HTTP request: [%.*s]", conn->data_len, conn->buf);
+ } else if (strcmp(ri->http_version, "1.0") &&
+ strcmp(ri->http_version, "1.1")) {
+ // Request seems valid, but HTTP version is strange
+ send_http_error(conn, 505, "HTTP version not supported", "");
+ log_access(conn);
+ } else {
+ // Request is valid, handle it
+ cl = get_header(ri, "Content-Length");
+ conn->content_len = cl == NULL ? -1 : strtoll(cl, NULL, 10);
+ conn->birth_time = time(NULL);
+ handle_request(conn);
+ call_user(conn, MG_REQUEST_COMPLETE);
+ log_access(conn);
+ discard_current_request_from_buffer(conn);
+ }
+ if (ri->remote_user != NULL) {
+ free((void *) ri->remote_user);
+ }
+ } while (conn->ctx->stop_flag == 0 &&
+ keep_alive_enabled &&
+ should_keep_alive(conn));
+}
+
+// Worker threads take accepted socket from the queue
+static int consume_socket(struct mg_context *ctx, struct socket *sp) {
+ (void) pthread_mutex_lock(&ctx->mutex);
+ DEBUG_TRACE(("going idle"));
+
+ // If the queue is empty, wait. We're idle at this point.
+ while (ctx->sq_head == ctx->sq_tail && ctx->stop_flag == 0) {
+ pthread_cond_wait(&ctx->sq_full, &ctx->mutex);
+ }
+
+ // If we're stopping, sq_head may be equal to sq_tail.
+ if (ctx->sq_head > ctx->sq_tail) {
+ // Copy socket from the queue and increment tail
+ *sp = ctx->queue[ctx->sq_tail % ARRAY_SIZE(ctx->queue)];
+ ctx->sq_tail++;
+ DEBUG_TRACE(("grabbed socket %d, going busy", sp->sock));
+
+ // Wrap pointers if needed
+ while (ctx->sq_tail > (int) ARRAY_SIZE(ctx->queue)) {
+ ctx->sq_tail -= ARRAY_SIZE(ctx->queue);
+ ctx->sq_head -= ARRAY_SIZE(ctx->queue);
+ }
+ }
+
+ (void) pthread_cond_signal(&ctx->sq_empty);
+ (void) pthread_mutex_unlock(&ctx->mutex);
+
+ return !ctx->stop_flag;
+}
+
+static void worker_thread(struct mg_context *ctx) {
+ struct mg_connection *conn;
+ int buf_size = atoi(ctx->config[MAX_REQUEST_SIZE]);
+
+ conn = (struct mg_connection *) calloc(1, sizeof(*conn) + buf_size);
+ if (conn == NULL) {
+ cry(fc(ctx), "%s", "Cannot create new connection struct, OOM");
+ return;
+ }
+ conn->buf_size = buf_size;
+ conn->buf = (char *) (conn + 1);
+
+ // Call consume_socket() even when ctx->stop_flag > 0, to let it signal
+ // sq_empty condvar to wake up the master waiting in produce_socket()
+ while (consume_socket(ctx, &conn->client)) {
+ conn->birth_time = time(NULL);
+ conn->ctx = ctx;
+
+ // Fill in IP, port info early so even if SSL setup below fails,
+ // error handler would have the corresponding info.
+ // Thanks to Johannes Winkelmann for the patch.
+ // TODO(lsm): Fix IPv6 case
+ conn->request_info.remote_port = ntohs(conn->client.rsa.sin.sin_port);
+ memcpy(&conn->request_info.remote_ip,
+ &conn->client.rsa.sin.sin_addr.s_addr, 4);
+ conn->request_info.remote_ip = ntohl(conn->request_info.remote_ip);
+ conn->request_info.is_ssl = conn->client.is_ssl;
+
+ if (!conn->client.is_ssl ||
+ (conn->client.is_ssl && sslize(conn, SSL_accept))) {
+ process_new_connection(conn);
+ }
+
+ close_connection(conn);
+ }
+ free(conn);
+
+ // Signal master that we're done with connection and exiting
+ (void) pthread_mutex_lock(&ctx->mutex);
+ ctx->num_threads--;
+ (void) pthread_cond_signal(&ctx->cond);
+ assert(ctx->num_threads >= 0);
+ (void) pthread_mutex_unlock(&ctx->mutex);
+
+ DEBUG_TRACE(("exiting"));
+}
+
+// Master thread adds accepted socket to a queue
+static void produce_socket(struct mg_context *ctx, const struct socket *sp) {
+ (void) pthread_mutex_lock(&ctx->mutex);
+
+ // If the queue is full, wait
+ while (ctx->stop_flag == 0 &&
+ ctx->sq_head - ctx->sq_tail >= (int) ARRAY_SIZE(ctx->queue)) {
+ (void) pthread_cond_wait(&ctx->sq_empty, &ctx->mutex);
+ }
+
+ if (ctx->sq_head - ctx->sq_tail < (int) ARRAY_SIZE(ctx->queue)) {
+ // Copy socket to the queue and increment head
+ ctx->queue[ctx->sq_head % ARRAY_SIZE(ctx->queue)] = *sp;
+ ctx->sq_head++;
+ DEBUG_TRACE(("queued socket %d", sp->sock));
+ }
+
+ (void) pthread_cond_signal(&ctx->sq_full);
+ (void) pthread_mutex_unlock(&ctx->mutex);
+}
+
+static void accept_new_connection(const struct socket *listener,
+ struct mg_context *ctx) {
+ struct socket accepted;
+ char src_addr[20];
+ socklen_t len;
+ int allowed;
+
+ len = sizeof(accepted.rsa);
+ accepted.lsa = listener->lsa;
+ accepted.sock = accept(listener->sock, &accepted.rsa.sa, &len);
+ if (accepted.sock != INVALID_SOCKET) {
+ allowed = check_acl(ctx, &accepted.rsa);
+ if (allowed) {
+ // Put accepted socket structure into the queue
+ DEBUG_TRACE(("accepted socket %d", accepted.sock));
+ accepted.is_ssl = listener->is_ssl;
+ produce_socket(ctx, &accepted);
+ } else {
+ sockaddr_to_string(src_addr, sizeof(src_addr), &accepted.rsa);
+ cry(fc(ctx), "%s: %s is not allowed to connect", __func__, src_addr);
+ (void) closesocket(accepted.sock);
+ }
+ }
+}
+
+static void master_thread(struct mg_context *ctx) {
+ fd_set read_set;
+ struct timeval tv;
+ struct socket *sp;
+ int max_fd;
+
+ // Increase priority of the master thread
+#if defined(_WIN32)
+ SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_ABOVE_NORMAL);
+#endif
+
+#if defined(ISSUE_317)
+ struct sched_param sched_param;
+ sched_param.sched_priority = sched_get_priority_max(SCHED_RR);
+ pthread_setschedparam(pthread_self(), SCHED_RR, &sched_param);
+#endif
- list = str;
- while ((list = next_option(list, &key, &value)) != NULL)
- if (key.len == 0 || value.len == 0) {
- cry(fc(ctx), "Invalid list specified: [%s], "
- "expecting key1=value1,key2=value2,...", str);
- return (FALSE);
- }
+ while (ctx->stop_flag == 0) {
+ FD_ZERO(&read_set);
+ max_fd = -1;
- return (TRUE);
-}
+ // Add listening sockets to the read set
+ for (sp = ctx->listening_sockets; sp != NULL; sp = sp->next) {
+ add_to_set(sp->sock, &read_set, &max_fd);
+ }
-static const struct mg_option known_options[] = {
- {"root", "\tWeb root directory", ".", OPT_ROOT, NULL},
- {"index_files", "Index files", "index.html,index.htm,index.cgi",
- OPT_INDEX_FILES, NULL},
-#if !defined(NO_SSL)
- {"ssl_cert", "SSL certificate file", NULL,
- OPT_SSL_CERTIFICATE, &set_ssl_option},
-#endif /* !NO_SSL */
- {"ports", "Listening ports", NULL,
- OPT_PORTS, &set_ports_option},
- {"dir_list", "Directory listing", "yes",
- OPT_DIR_LIST, NULL},
- {"protect", "URI to htpasswd mapping", NULL,
- OPT_PROTECT, &set_kv_list_option},
-#if !defined(NO_CGI)
- {"cgi_ext", "CGI extensions", ".cgi,.pl,.php",
- OPT_CGI_EXTENSIONS, NULL},
- {"cgi_interp", "CGI interpreter to use with all CGI scripts", NULL,
- OPT_CGI_INTERPRETER, NULL},
- {"cgi_env", "Custom CGI enviroment variables", NULL,
- OPT_CGI_ENV, &set_kv_list_option},
-#endif /* NO_CGI */
- {"ssi_ext", "SSI extensions", ".shtml,.shtm",
- OPT_SSI_EXTENSIONS, NULL},
- {"auth_realm", "Authentication domain name", "mydomain.com",
- OPT_AUTH_DOMAIN, NULL},
- {"auth_gpass", "Global passwords file", NULL,
- OPT_AUTH_GPASSWD, &set_gpass_option},
- {"auth_PUT", "PUT,DELETE auth file", NULL,
- OPT_AUTH_PUT, NULL},
-#if !defined(_WIN32)
- {"uid", "\tRun as user", NULL, OPT_UID, &set_uid_option},
-#endif /* !_WIN32 */
- {"access_log", "Access log file", NULL,
- OPT_ACCESS_LOG, &set_alog_option},
- {"error_log", "Error log file", NULL,
- OPT_ERROR_LOG, &set_elog_option},
- {"aliases", "Path=URI mappings", NULL,
- OPT_ALIASES, &set_kv_list_option},
- {"admin_uri", "Administration page URI", NULL,
- OPT_ADMIN_URI, &set_admin_uri_option},
- {"acl", "\tAllow/deny IP addresses/subnets", NULL,
- OPT_ACL, &set_acl_option},
- {"max_threads", "Maximum simultaneous threads to spawn", "100",
- OPT_MAX_THREADS, &set_max_threads_option},
- {"idle_time", "Time in seconds connection stays idle", "10",
- OPT_IDLE_TIME, NULL},
- {"mime_types", "Comma separated list of ext=mime_type pairs", NULL,
- OPT_MIME_TYPES, &set_kv_list_option},
- {NULL, NULL, NULL, 0, NULL}
-};
+ tv.tv_sec = 0;
+ tv.tv_usec = 200 * 1000;
-static const struct mg_option *
-find_opt(const char *opt_name)
-{
- int i;
-
- for (i = 0; known_options[i].name != NULL; i++)
- if (!strcmp(opt_name, known_options[i].name))
- return (known_options + i);
-
- return (NULL);
-}
-
-int
-mg_set_option(struct mg_context *ctx, const char *opt, const char *val)
-{
- const struct mg_option *option;
- int i, retval;
-
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: [%s]->[%s]", __func__, opt, val));
- if (opt != NULL && (option = find_opt(opt)) != NULL) {
- i = (int) (option - known_options);
- lock_option(ctx, i);
-
- if (option->setter != NULL)
- retval = option->setter(ctx, val);
- else
- retval = TRUE;
-
- /* Free old value if any */
- if (ctx->options[option->index] != NULL)
- free(ctx->options[option->index]);
-
- /* Set new option value */
- ctx->options[option->index] = val ? mg_strdup(val) : NULL;
- unlock_option(ctx, i);
-
- if (retval == FALSE)
- cry(fc(ctx), "%s(%s): failure", __func__, opt);
- } else {
- cry(fc(ctx), "%s: No such option: [%s]", __func__, opt);
- retval = -1;
- }
-
- return (retval);
-}
-
-void
-mg_show_usage_string(FILE *fp)
-{
- const struct mg_option *o;
-
- (void) fprintf(stderr,
- "Mongoose version %s (c) Sergey Lyubka\n"
- "usage: mongoose [options] [config_file]\n", mg_version());
-
- fprintf(fp, " -A <htpasswd_file> <realm> <user> <passwd>\n");
-
- for (o = known_options; o->name != NULL; o++) {
- (void) fprintf(fp, " -%s\t%s", o->name, o->description);
- if (o->default_value != NULL)
- fprintf(fp, " (default: \"%s\")", o->default_value);
- fputc('\n', fp);
- }
-}
-
-const char *
-mg_get_option(const struct mg_context *ctx, const char *option_name)
-{
- const struct mg_option *option;
-
- if ((option = find_opt(option_name)) != NULL)
- return (ctx->options[option->index]);
- else
- return (NULL);
-}
-
-static void
-admin_page(struct mg_connection *conn, const struct mg_request_info *ri,
- void *user_data)
-{
- const struct mg_option *option;
- const char *option_name, *option_value;
-
- user_data = NULL; /* Unused */
-
- (void) mg_printf(conn,
- "HTTP/1.1 200 OK\r\n"
- "Content-Type: text/html\r\n\r\n"
- "<html><body><h1>Mongoose v. %s</h1>", mg_version());
-
- if (!strcmp(ri->request_method, "POST")) {
- option_name = mg_get_var(conn, "o");
- option_value = mg_get_var(conn, "v");
- if (mg_set_option(conn->ctx,
- option_name, option_value) == -1) {
- (void) mg_printf(conn,
- "<p style=\"background: red\">Error setting "
- "option \"%s\"</p>",
- option_name ? option_name : "(null)");
- } else {
- (void) mg_printf(conn,
- "<p style=\"color: green\">Saved: %s=%s</p>",
- option_name, option_value ? option_value : "NULL");
- }
- }
-
- /* Print table with all options */
- (void) mg_printf(conn, "%s", "<table border=\"1\""
- "<tr><th>Option</th><th>Description</th>"
- "<th colspan=2>Value</th></tr>");
-
- for (option = known_options; option->name != NULL; option++) {
- option_value = mg_get_option(conn->ctx, option->name);
- if (option_value == NULL)
- option_value = "";
- (void) mg_printf(conn,
- "<form method=post><tr><td>%s</td><td>%s</td>"
- "<input type=hidden name=o value='%s'>"
- "<td><input type=text name=v value='%s'></td>"
- "<td><input type=submit value=save></td></form></tr>",
- option->name, option->description,
- option->name, option_value);
- }
-
- (void) mg_printf(conn, "%s", "</table></body></html>");
-}
-
-static void
-reset_per_request_attributes(struct mg_connection *conn)
-{
- if (conn->request_info.remote_user != NULL) {
- free((void *) conn->request_info.remote_user);
- conn->request_info.remote_user = NULL;
- }
- if (conn->free_post_data && conn->request_info.post_data != NULL) {
- free((void *) conn->request_info.post_data);
- conn->request_info.post_data = NULL;
- }
-}
-
-static void
-close_socket_gracefully(struct mg_connection *conn, SOCKET sock)
-{
- char buf[BUFSIZ];
- int n;
-
- /* Send FIN to the client */
- (void) shutdown(sock, SHUT_WR);
- set_non_blocking_mode(conn, sock);
-
- /*
- * Read and discard pending data. If we do not do that and close the
- * socket, the data in the send buffer may be discarded. This
- * behaviour is seen on Windows, when client keeps sending data
- * when server decide to close the connection; then when client
- * does recv() it gets no data back.
- */
- do {
- n = pull(NULL, sock, NULL, buf, sizeof(buf));
- } while (n > 0);
-
- /* Now we know that our FIN is ACK-ed, safe to close */
- (void) closesocket(sock);
-}
-
-static void
-close_connection(struct mg_connection *conn)
-{
- reset_per_request_attributes(conn);
-
- if (conn->ssl)
- SSL_free(conn->ssl);
-
- if (conn->client.sock != INVALID_SOCKET)
- close_socket_gracefully(conn, conn->client.sock);
-}
-
-static void
-reset_connection_attributes(struct mg_connection *conn)
-{
- reset_per_request_attributes(conn);
- conn->free_post_data = FALSE;
- conn->request_info.status_code = -1;
- conn->num_bytes_sent = 0;
- (void) memset(&conn->request_info, 0, sizeof(conn->request_info));
-}
-
-static void
-shift_to_next(struct mg_connection *conn, char *buf, int req_len, int *nread)
-{
- int64_t cl;
- int over_len, body_len;
-
- cl = get_content_length(conn);
- over_len = *nread - req_len;
- assert(over_len >= 0);
-
- if (cl == -1) {
- body_len = 0;
- } else if (cl < (int64_t) over_len) {
- body_len = (int) cl;
- } else {
- body_len = over_len;
- }
-
- *nread -= req_len + body_len;
- (void) memmove(buf, buf + req_len + body_len, *nread);
-}
-
-static void
-process_new_connection(struct mg_connection *conn)
-{
- struct mg_request_info *ri = &conn->request_info;
- char buf[MAX_REQUEST_SIZE];
- int request_len, nread;
-
- nread = 0;
- reset_connection_attributes(conn);
-
- /* If next request is not pipelined, read it in */
- if ((request_len = get_request_len(buf, (size_t) nread)) == 0)
- request_len = read_request(NULL, conn->client.sock,
- conn->ssl, buf, sizeof(buf), &nread);
- assert(nread >= request_len);
-
- if (request_len <= 0)
- return; /* Remote end closed the connection */
-
- /* 0-terminate the request: parse_request uses sscanf */
- buf[request_len - 1] = '\0';
-
- if (parse_http_request(buf, ri, &conn->client.rsa)) {
- if (strcmp(ri->http_version, "1.0") != 0 &&
- strcmp(ri->http_version, "1.1") != 0) {
- send_error(conn, 505,
- "HTTP version not supported",
- "%s", "Weird HTTP version");
- log_access(conn);
- } else {
- ri->post_data = buf + request_len;
- ri->post_data_len = nread - request_len;
- conn->birth_time = time(NULL);
- analyze_request(conn);
- log_access(conn);
- shift_to_next(conn, buf, request_len, &nread);
- }
- } else {
- /* Do not put garbage in the access log */
- send_error(conn, 400, "Bad Request",
- "Can not parse request: [%.*s]", nread, buf);
- }
-
-}
-
-/*
- * Worker threads take accepted socket from the queue
- */
-static bool_t
-get_socket(struct mg_context *ctx, struct socket *sp)
-{
- struct timespec ts;
-
- (void) pthread_mutex_lock(&ctx->thr_mutex);
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: thread %p: going idle",
- __func__, (void *) pthread_self()));
-
- /* If the queue is empty, wait. We're idle at this point. */
- ctx->num_idle++;
- while (ctx->sq_head == ctx->sq_tail) {
- ts.tv_nsec = 0;
- ts.tv_sec = time(NULL) + atoi(ctx->options[OPT_IDLE_TIME]) + 1;
- if (pthread_cond_timedwait(&ctx->empty_cond,
- &ctx->thr_mutex, &ts) != 0) {
- /* Timeout! release the mutex and return */
- (void) pthread_mutex_unlock(&ctx->thr_mutex);
- return (FALSE);
- }
- }
- assert(ctx->sq_head > ctx->sq_tail);
-
- /* We're going busy now: got a socket to process! */
- ctx->num_idle--;
-
- /* Copy socket from the queue and increment tail */
- *sp = ctx->queue[ctx->sq_tail % ARRAY_SIZE(ctx->queue)];
- ctx->sq_tail++;
- DEBUG_TRACE((DEBUG_MGS_PREFIX
- "%s: thread %p grabbed socket %d, going busy",
- __func__, (void *) pthread_self(), sp->sock));
-
- /* Wrap pointers if needed */
- while (ctx->sq_tail > (int) ARRAY_SIZE(ctx->queue)) {
- ctx->sq_tail -= ARRAY_SIZE(ctx->queue);
- ctx->sq_head -= ARRAY_SIZE(ctx->queue);
- }
-
- pthread_cond_signal(&ctx->full_cond);
- (void) pthread_mutex_unlock(&ctx->thr_mutex);
-
- return (TRUE);
-}
-
-static void
-worker_thread(struct mg_context *ctx)
-{
- struct mg_connection conn;
-
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: thread %p starting",
- __func__, (void *) pthread_self()));
-
- (void) memset(&conn, 0, sizeof(conn));
-
- while (get_socket(ctx, &conn.client) == TRUE) {
- conn.birth_time = time(NULL);
- conn.ctx = ctx;
-
- if (conn.client.is_ssl &&
- (conn.ssl = SSL_new(conn.ctx->ssl_ctx)) == NULL) {
- cry(&conn, "%s: SSL_new: %d", __func__, ERRNO);
- } else if (conn.client.is_ssl &&
- SSL_set_fd(conn.ssl, conn.client.sock) != 1) {
- cry(&conn, "%s: SSL_set_fd: %d", __func__, ERRNO);
- } else if (conn.client.is_ssl && SSL_accept(conn.ssl) != 1) {
- cry(&conn, "%s: SSL handshake error", __func__);
- } else {
- process_new_connection(&conn);
- }
-
- close_connection(&conn);
- }
-
- /* Signal master that we're done with connection and exiting */
- pthread_mutex_lock(&ctx->thr_mutex);
- ctx->num_threads--;
- ctx->num_idle--;
- pthread_cond_signal(&ctx->thr_cond);
- assert(ctx->num_threads >= 0);
- pthread_mutex_unlock(&ctx->thr_mutex);
-
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: thread %p exiting",
- __func__, (void *) pthread_self()));
-}
-
-/*
- * Master thread adds accepted socket to a queue
- */
-static void
-put_socket(struct mg_context *ctx, const struct socket *sp)
-{
- (void) pthread_mutex_lock(&ctx->thr_mutex);
-
- /* If the queue is full, wait */
- while (ctx->sq_head - ctx->sq_tail >= (int) ARRAY_SIZE(ctx->queue))
- (void) pthread_cond_wait(&ctx->full_cond, &ctx->thr_mutex);
- assert(ctx->sq_head - ctx->sq_tail < (int) ARRAY_SIZE(ctx->queue));
-
- /* Copy socket to the queue and increment head */
- ctx->queue[ctx->sq_head % ARRAY_SIZE(ctx->queue)] = *sp;
- ctx->sq_head++;
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: queued socket %d",
- __func__, sp->sock));
-
- /* If there are no idle threads, start one */
- if (ctx->num_idle == 0 && ctx->num_threads < ctx->max_threads) {
- if (start_thread(ctx,
- (mg_thread_func_t) worker_thread, ctx) != 0)
- cry(fc(ctx), "Cannot start thread: %d", ERRNO);
- else
- ctx->num_threads++;
- }
-
- pthread_cond_signal(&ctx->empty_cond);
- (void) pthread_mutex_unlock(&ctx->thr_mutex);
-}
-
-static void
-accept_new_connection(const struct socket *listener, struct mg_context *ctx)
-{
- struct socket accepted;
-
- accepted.rsa.len = sizeof(accepted.rsa.u.sin);
- accepted.lsa = listener->lsa;
- if ((accepted.sock = accept(listener->sock,
- &accepted.rsa.u.sa, &accepted.rsa.len)) == INVALID_SOCKET)
- return;
-
- lock_option(ctx, OPT_ACL);
- if (ctx->options[OPT_ACL] != NULL &&
- !check_acl(ctx, ctx->options[OPT_ACL], &accepted.rsa)) {
- cry(fc(ctx), "%s: %s is not allowed to connect",
- __func__, inet_ntoa(accepted.rsa.u.sin.sin_addr));
- (void) closesocket(accepted.sock);
- unlock_option(ctx, OPT_ACL);
- return;
- }
- unlock_option(ctx, OPT_ACL);
-
- /* Put accepted socket structure into the queue */
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: accepted socket %d",
- __func__, accepted.sock));
- accepted.is_ssl = listener->is_ssl;
- put_socket(ctx, &accepted);
-}
-
-static void
-master_thread(struct mg_context *ctx)
-{
- fd_set read_set;
- struct timeval tv;
- int i, max_fd;
-
- while (ctx->stop_flag == 0) {
- FD_ZERO(&read_set);
- max_fd = -1;
-
- /* Add listening sockets to the read set */
- lock_option(ctx, OPT_PORTS);
- for (i = 0; i < ctx->num_listeners; i++)
- add_to_set(ctx->listeners[i].sock, &read_set, &max_fd);
- unlock_option(ctx, OPT_PORTS);
-
- tv.tv_sec = 1;
- tv.tv_usec = 0;
-
- if (select(max_fd + 1, &read_set, NULL, NULL, &tv) < 0) {
+ if (select(max_fd + 1, &read_set, NULL, NULL, &tv) < 0) {
#ifdef _WIN32
- /*
- * On windows, if read_set and write_set are empty,
- * select() returns "Invalid parameter" error
- * (at least on my Windows XP Pro). So in this case,
- * we sleep here.
- */
- sleep(1);
-#endif /* _WIN32 */
- } else {
- lock_option(ctx, OPT_PORTS);
- for (i = 0; i < ctx->num_listeners; i++)
- if (FD_ISSET(ctx->listeners[i].sock, &read_set))
- accept_new_connection(
- ctx->listeners + i, ctx);
- unlock_option(ctx, OPT_PORTS);
- }
- }
-
- /* Stop signal received: somebody called mg_stop. Quit. */
- mg_fini(ctx);
-}
-
-void
-mg_stop(struct mg_context *ctx)
-{
- ctx->stop_flag = 1;
-
- /* Wait until mg_fini() stops */
- while (ctx->stop_flag != 2)
- (void) sleep(1);
-
- assert(ctx->num_threads == 0);
- free(ctx);
-
-#if defined(_WIN32)
- (void) WSACleanup();
-#endif /* _WIN32 */
-}
-
-struct mg_context *
-mg_start(void)
-{
- struct mg_context *ctx;
- const struct mg_option *option;
- int i;
+ // On windows, if read_set and write_set are empty,
+ // select() returns "Invalid parameter" error
+ // (at least on my Windows XP Pro). So in this case, we sleep here.
+ mg_sleep(1000);
+#endif // _WIN32
+ } else {
+ for (sp = ctx->listening_sockets; sp != NULL; sp = sp->next) {
+ if (ctx->stop_flag == 0 && FD_ISSET(sp->sock, &read_set)) {
+ accept_new_connection(sp, ctx);
+ }
+ }
+ }
+ }
+ DEBUG_TRACE(("stopping workers"));
+
+ // Stop signal received: somebody called mg_stop. Quit.
+ close_all_listening_sockets(ctx);
+
+ // Wakeup workers that are waiting for connections to handle.
+ pthread_cond_broadcast(&ctx->sq_full);
+
+ // Wait until all threads finish
+ (void) pthread_mutex_lock(&ctx->mutex);
+ while (ctx->num_threads > 0) {
+ (void) pthread_cond_wait(&ctx->cond, &ctx->mutex);
+ }
+ (void) pthread_mutex_unlock(&ctx->mutex);
+
+ // All threads exited, no sync is needed. Destroy mutex and condvars
+ (void) pthread_mutex_destroy(&ctx->mutex);
+ (void) pthread_cond_destroy(&ctx->cond);
+ (void) pthread_cond_destroy(&ctx->sq_empty);
+ (void) pthread_cond_destroy(&ctx->sq_full);
-#if defined(_WIN32)
- WSADATA data;
- WSAStartup(MAKEWORD(2,2), &data);
-#endif /* _WIN32 */
-
- if ((ctx = (struct mg_context *) calloc(1, sizeof(*ctx))) == NULL) {
- cry(fc(ctx), "cannot allocate mongoose context");
- return (NULL);
- }
-
- ctx->error_log = stderr;
- mg_set_log_callback(ctx, builtin_error_log);
-
- /* Initialize options. First pass: set default option values */
- for (option = known_options; option->name != NULL; option++)
- ctx->options[option->index] = option->default_value == NULL ?
- NULL : mg_strdup(option->default_value);
-
- /* Call setter functions */
- for (option = known_options; option->name != NULL; option++)
- if (option->setter != NULL &&
- ctx->options[option->index] != NULL)
- if (option->setter(ctx,
- ctx->options[option->index]) == FALSE) {
- mg_fini(ctx);
- return (NULL);
- }
-
- DEBUG_TRACE((DEBUG_MGS_PREFIX "%s: root [%s]",
- __func__, ctx->options[OPT_ROOT]));
+#if !defined(NO_SSL)
+ uninitialize_ssl(ctx);
+#endif
+ // Signal mg_stop() that we're done
+ ctx->stop_flag = 2;
+
+ DEBUG_TRACE(("exiting"));
+}
+
+static void free_context(struct mg_context *ctx) {
+ int i;
+
+ // Deallocate config parameters
+ for (i = 0; i < NUM_OPTIONS; i++) {
+ if (ctx->config[i] != NULL)
+ free(ctx->config[i]);
+ }
+
+ // Deallocate SSL context
+ if (ctx->ssl_ctx != NULL) {
+ SSL_CTX_free(ctx->ssl_ctx);
+ }
+#ifndef NO_SSL
+ if (ssl_mutexes != NULL) {
+ free(ssl_mutexes);
+ }
+#endif // !NO_SSL
+
+ // Deallocate context itself
+ free(ctx);
+}
+
+void mg_stop(struct mg_context *ctx) {
+ ctx->stop_flag = 1;
+
+ // Wait until mg_fini() stops
+ while (ctx->stop_flag != 2) {
+ mg_sleep(10);
+ }
+ free_context(ctx);
+
+#if defined(_WIN32) && !defined(__SYMBIAN32__)
+ (void) WSACleanup();
+#endif // _WIN32
+}
+
+struct mg_context *mg_start(mg_callback_t user_callback, void *user_data,
+ const char **options) {
+ struct mg_context *ctx;
+ const char *name, *value, *default_value;
+ int i;
+
+#if defined(_WIN32) && !defined(__SYMBIAN32__)
+ WSADATA data;
+ WSAStartup(MAKEWORD(2,2), &data);
+ InitializeCriticalSection(&global_log_file_lock);
+#endif // _WIN32
+
+ // Allocate context and initialize reasonable general case defaults.
+ // TODO(lsm): do proper error handling here.
+ ctx = (struct mg_context *) calloc(1, sizeof(*ctx));
+ ctx->user_callback = user_callback;
+ ctx->user_data = user_data;
+
+ while (options && (name = *options++) != NULL) {
+ if ((i = get_option_index(name)) == -1) {
+ cry(fc(ctx), "Invalid option: %s", name);
+ free_context(ctx);
+ return NULL;
+ } else if ((value = *options++) == NULL) {
+ cry(fc(ctx), "%s: option value cannot be NULL", name);
+ free_context(ctx);
+ return NULL;
+ }
+ if (ctx->config[i] != NULL) {
+ cry(fc(ctx), "%s: duplicate option", name);
+ }
+ ctx->config[i] = mg_strdup(value);
+ DEBUG_TRACE(("[%s] -> [%s]", name, value));
+ }
+
+ // Set default value if needed
+ for (i = 0; config_options[i * ENTRIES_PER_CONFIG_OPTION] != NULL; i++) {
+ default_value = config_options[i * ENTRIES_PER_CONFIG_OPTION + 2];
+ if (ctx->config[i] == NULL && default_value != NULL) {
+ ctx->config[i] = mg_strdup(default_value);
+ DEBUG_TRACE(("Setting default: [%s] -> [%s]",
+ config_options[i * ENTRIES_PER_CONFIG_OPTION + 1],
+ default_value));
+ }
+ }
+
+ // NOTE(lsm): order is important here. SSL certificates must
+ // be initialized before listening ports. UID must be set last.
+ if (!set_gpass_option(ctx) ||
+#if !defined(NO_SSL)
+ !set_ssl_option(ctx) ||
+#endif
+ !set_ports_option(ctx) ||
#if !defined(_WIN32)
- /*
- * Ignore SIGPIPE signal, so if browser cancels the request, it
- * won't kill the whole process.
- */
- (void) signal(SIGPIPE, SIG_IGN);
-#endif /* _WIN32 */
-
- /* Initialize options mutexes */
- for (i = 0; i < NUM_OPTIONS; i++)
- (void) pthread_mutex_init(&ctx->opt_mutex[i], NULL);
-
- (void) pthread_mutex_init(&ctx->thr_mutex, NULL);
- (void) pthread_mutex_init(&ctx->bind_mutex, NULL);
- (void) pthread_cond_init(&ctx->thr_cond, NULL);
- (void) pthread_cond_init(&ctx->empty_cond, NULL);
- (void) pthread_cond_init(&ctx->full_cond, NULL);
-
- /* Start master (listening) thread */
- start_thread(ctx, (mg_thread_func_t) master_thread, ctx);
-
- return (ctx);
+ !set_uid_option(ctx) ||
+#endif
+ !set_acl_option(ctx)) {
+ free_context(ctx);
+ return NULL;
+ }
+
+#if !defined(_WIN32) && !defined(__SYMBIAN32__)
+ // Ignore SIGPIPE signal, so if browser cancels the request, it
+ // won't kill the whole process.
+ (void) signal(SIGPIPE, SIG_IGN);
+ // Also ignoring SIGCHLD to let the OS to reap zombies properly.
+ (void) signal(SIGCHLD, SIG_IGN);
+#endif // !_WIN32
+
+ (void) pthread_mutex_init(&ctx->mutex, NULL);
+ (void) pthread_cond_init(&ctx->cond, NULL);
+ (void) pthread_cond_init(&ctx->sq_empty, NULL);
+ (void) pthread_cond_init(&ctx->sq_full, NULL);
+
+ // Start master (listening) thread
+ start_thread(ctx, (mg_thread_func_t) master_thread, ctx);
+
+ // Start worker threads
+ for (i = 0; i < atoi(ctx->config[NUM_THREADS]); i++) {
+ if (start_thread(ctx, (mg_thread_func_t) worker_thread, ctx) != 0) {
+ cry(fc(ctx), "Cannot start worker thread: %d", ERRNO);
+ } else {
+ ctx->num_threads++;
+ }
+ }
+
+ return ctx;
}
diff --git a/cpukit/mghttpd/mongoose.h b/cpukit/mghttpd/mongoose.h
index 5a71e6095d..61a560a553 100644
--- a/cpukit/mghttpd/mongoose.h
+++ b/cpukit/mghttpd/mongoose.h
@@ -1,251 +1,238 @@
-/*
- * Copyright (c) 2004-2009 Sergey Lyubka
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
+// Copyright (c) 2004-2011 Sergey Lyubka
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
#ifndef MONGOOSE_HEADER_INCLUDED
-#define MONGOOSE_HEADER_INCLUDED
+#define MONGOOSE_HEADER_INCLUDED
+
+#include <stddef.h>
#ifdef __cplusplus
extern "C" {
-#endif /* __cplusplus */
+#endif // __cplusplus
-struct mg_context; /* Handle for the HTTP service itself */
-struct mg_connection; /* Handle for the individual connection */
+struct mg_context; // Handle for the HTTP service itself
+struct mg_connection; // Handle for the individual connection
-/*
- * This structure contains full information about the HTTP request.
- * It is passed to the user-specified callback function as a parameter.
- */
+// This structure contains information about the HTTP request.
struct mg_request_info {
- char *request_method; /* "GET", "POST", etc */
- char *uri; /* Normalized URI */
- char *http_version; /* E.g. "1.0", "1.1" */
- char *query_string; /* \0 - terminated */
- char *post_data; /* POST data buffer */
- char *remote_user; /* Authenticated user */
- long remote_ip; /* Client's IP address */
- int remote_port; /* Client's port */
- int post_data_len; /* POST buffer length */
- int status_code; /* HTTP status code */
- int num_headers; /* Number of headers */
- struct mg_header {
- char *name; /* HTTP header name */
- char *value; /* HTTP header value */
- } http_headers[64]; /* Maximum 64 headers */
+ void *user_data; // User-defined pointer passed to mg_start()
+ char *request_method; // "GET", "POST", etc
+ char *uri; // URL-decoded URI
+ char *http_version; // E.g. "1.0", "1.1"
+ char *query_string; // URL part after '?' (not including '?') or NULL
+ char *remote_user; // Authenticated user, or NULL if no auth used
+ char *log_message; // Mongoose error log message, MG_EVENT_LOG only
+ long remote_ip; // Client's IP address
+ int remote_port; // Client's port
+ int status_code; // HTTP reply status code, e.g. 200
+ int is_ssl; // 1 if SSL-ed, 0 if not
+ int num_headers; // Number of headers
+ struct mg_header {
+ char *name; // HTTP header name
+ char *value; // HTTP header value
+ } http_headers[64]; // Maximum 64 headers
};
+// Various events on which user-defined function is called by Mongoose.
+enum mg_event {
+ MG_NEW_REQUEST, // New HTTP request has arrived from the client
+ MG_HTTP_ERROR, // HTTP error must be returned to the client
+ MG_EVENT_LOG, // Mongoose logs an event, request_info.log_message
+ MG_INIT_SSL, // Mongoose initializes SSL. Instead of mg_connection *,
+ // SSL context is passed to the callback function.
+ MG_REQUEST_COMPLETE // Mongoose has finished handling the request
+};
-/*
- * User-defined callback function prototype for URI handling, error handling,
- * or logging server messages.
- */
-typedef void (*mg_callback_t)(struct mg_connection *,
- const struct mg_request_info *info, void *user_data);
-
-
-/*
- * Start the web server.
- * This must be the first function called by the application.
- * It creates a serving thread, and returns a context structure that
- * can be used to alter the configuration, and stop the server.
- */
-struct mg_context *mg_start(void);
-
-
-/*
- * Stop the web server.
- * Must be called last, when an application wants to stop the web server and
- * release all associated resources. This function blocks until all Mongoose
- * threads are stopped. Context pointer becomes invalid.
- */
+// Prototype for the user-defined function. Mongoose calls this function
+// on every MG_* event.
+//
+// Parameters:
+// event: which event has been triggered.
+// conn: opaque connection handler. Could be used to read, write data to the
+// client, etc. See functions below that have "mg_connection *" arg.
+// request_info: Information about HTTP request.
+//
+// Return:
+// If handler returns non-NULL, that means that handler has processed the
+// request by sending appropriate HTTP reply to the client. Mongoose treats
+// the request as served.
+// If handler returns NULL, that means that handler has not processed
+// the request. Handler must not send any data to the client in this case.
+// Mongoose proceeds with request handling as if nothing happened.
+typedef void * (*mg_callback_t)(enum mg_event event,
+ struct mg_connection *conn,
+ const struct mg_request_info *request_info);
+
+
+// Start web server.
+//
+// Parameters:
+// callback: user defined event handling function or NULL.
+// options: NULL terminated list of option_name, option_value pairs that
+// specify Mongoose configuration parameters.
+//
+// Side-effects: on UNIX, ignores SIGCHLD and SIGPIPE signals. If custom
+// processing is required for these, signal handlers must be set up
+// after calling mg_start().
+//
+//
+// Example:
+// const char *options[] = {
+// "document_root", "/var/www",
+// "listening_ports", "80,443s",
+// NULL
+// };
+// struct mg_context *ctx = mg_start(&my_func, NULL, options);
+//
+// Please refer to http://code.google.com/p/mongoose/wiki/MongooseManual
+// for the list of valid option and their possible values.
+//
+// Return:
+// web server context, or NULL on error.
+struct mg_context *mg_start(mg_callback_t callback, void *user_data,
+ const char **options);
+
+
+// Stop the web server.
+//
+// Must be called last, when an application wants to stop the web server and
+// release all associated resources. This function blocks until all Mongoose
+// threads are stopped. Context pointer becomes invalid.
void mg_stop(struct mg_context *);
-/*
- * Return current value of a particular option.
- */
-const char *mg_get_option(const struct mg_context *, const char *option_name);
-
-
-/*
- * Set a value for a particular option.
- * Mongoose makes an internal copy of the option value string, which must be
- * valid nul-terminated ASCII or UTF-8 string. It is safe to change any option
- * at any time. The order of setting various options is also irrelevant with
- * one exception: if "ports" option contains SSL listening ports, a "ssl_cert"
- * option must be set BEFORE the "ports" option.
- * Return value:
- * -1 if option is unknown
- * 0 if mg_set_option() failed
- * 1 if mg_set_option() succeeded
- */
-int mg_set_option(struct mg_context *, const char *opt_name, const char *value);
-
-
-/*
- * Add, edit or delete the entry in the passwords file.
- * This function allows an application to manipulate .htpasswd files on the
- * fly by adding, deleting and changing user records. This is one of the two
- * ways of implementing authentication on the server side. For another,
- * cookie-based way please refer to the examples/authentication.c in the
- * source tree.
- * If password is not NULL, entry is added (or modified if already exists).
- * If password is NULL, entry is deleted. Return:
- * 1 on success
- * 0 on error
- */
-int mg_modify_passwords_file(struct mg_context *ctx, const char *file_name,
- const char *user_name, const char *password);
-
-
-/*
- * Register URI handler.
- * It is possible to handle many URIs if using * in the uri_regex, which
- * matches zero or more characters. user_data pointer will be passed to the
- * handler as a third parameter. If func is NULL, then the previously installed
- * handler for this uri_regex is removed.
- */
-void mg_set_uri_callback(struct mg_context *ctx, const char *uri_regex,
- mg_callback_t func, void *user_data);
-
-
-/*
- * Register HTTP error handler.
- * An application may use that function if it wants to customize the error
- * page that user gets on the browser (for example, 404 File Not Found message).
- * It is possible to specify a error handler for all errors by passing 0 as
- * error_code. That '0' error handler must be set last, if more specific error
- * handlers are also used. The actual error code value can be taken from
- * the request info structure that is passed to the callback.
- */
-void mg_set_error_callback(struct mg_context *ctx, int error_code,
- mg_callback_t func, void *user_data);
-
-
-/*
- * Register authorization handler.
- * This function provides a mechanism to implement custom authorization,
- * for example cookie based (look at examples/authorization.c).
- * The callback function must analyze the request, and make its own judgement
- * on wether it should be authorized or not. After the decision is made, a
- * callback must call mg_authorize() if the request is authorized.
- */
-void mg_set_auth_callback(struct mg_context *ctx, const char *uri_regex,
- mg_callback_t func, void *user_data);
-
-
-/*
- * Register log handler.
- * By default, Mongoose logs all error messages to stderr. If "error_log"
- * option is specified, the errors are written in the specified file. However,
- * if an application registers its own log handler, Mongoose will not log
- * anything but call the handler function, passing an error message as
- * "user_data" callback argument.
- */
-void mg_set_log_callback(struct mg_context *ctx, mg_callback_t func);
-
-
-/*
- * Register SSL password handler.
- * This is needed only if SSL certificate asks for a password. Instead of
- * prompting for a password on a console a specified function will be called.
- */
-typedef int (*mg_spcb_t)(char *buf, int num, int w, void *key);
-void mg_set_ssl_password_callback(struct mg_context *ctx, mg_spcb_t func);
-
-
-/*
- * Send data to the browser.
- * Return number of bytes sent. If the number of bytes sent is less then
- * requested or equals to -1, network error occured, usually meaning the
- * remote side has closed the connection.
- */
-int mg_write(struct mg_connection *, const void *buf, int len);
-
-
-/*
- * Send data to the browser using printf() semantics.
- * Works exactly like mg_write(), but allows to do message formatting.
- * Note that mg_printf() uses internal buffer of size MAX_REQUEST_SIZE
- * (8 Kb by default) as temporary message storage for formatting. Do not
- * print data that is bigger than that, otherwise it will be truncated.
- * Return number of bytes sent.
- */
-int mg_printf(struct mg_connection *, const char *fmt, ...);
-
-
-/*
- * Read data from the remote or local end.
- */
-int mg_read(struct mg_connection *, int local, void *buf, int len);
-
-/*
- * Get the value of particular HTTP header.
- * This is a helper function. It traverses request_info->http_headers array,
- * and if the header is present in the array, returns its value. If it is
- * not present, NULL is returned.
- */
-const char *mg_get_header(const struct mg_connection *, const char *hdr_name);
-
-
-/*
- * Authorize the request.
- * See the documentation for mg_set_auth_callback() function.
- */
-void mg_authorize(struct mg_connection *);
-
-
-/*
- * Get a value of particular form variable.
- * Both query string (whatever comes after '?' in the URL) and a POST buffer
- * are scanned. If a variable is specified in both query string and POST
- * buffer, POST buffer wins. Return value:
- * NULL if the variable is not found
- * non-NULL if found. NOTE: this returned value is dynamically allocated
- * and is subject to mg_free() when no longer needed. It is
- * an application's responsibility to mg_free() the variable.
- */
-char *mg_get_var(const struct mg_connection *, const char *var_name);
-
-
-/*
- * Free up memory returned by mg_get_var().
- */
-void mg_free(char *var);
-
-
-/*
- * Return Mongoose version.
- */
+// Get the value of particular configuration parameter.
+// The value returned is read-only. Mongoose does not allow changing
+// configuration at run time.
+// If given parameter name is not valid, NULL is returned. For valid
+// names, return value is guaranteed to be non-NULL. If parameter is not
+// set, zero-length string is returned.
+const char *mg_get_option(const struct mg_context *ctx, const char *name);
+
+
+// Return array of strings that represent valid configuration options.
+// For each option, a short name, long name, and default value is returned.
+// Array is NULL terminated.
+const char **mg_get_valid_option_names(void);
+
+
+// Add, edit or delete the entry in the passwords file.
+//
+// This function allows an application to manipulate .htpasswd files on the
+// fly by adding, deleting and changing user records. This is one of the
+// several ways of implementing authentication on the server side. For another,
+// cookie-based way please refer to the examples/chat.c in the source tree.
+//
+// If password is not NULL, entry is added (or modified if already exists).
+// If password is NULL, entry is deleted.
+//
+// Return:
+// 1 on success, 0 on error.
+int mg_modify_passwords_file(const char *passwords_file_name,
+ const char *domain,
+ const char *user,
+ const char *password);
+
+// Send data to the client.
+int mg_write(struct mg_connection *, const void *buf, size_t len);
+
+
+// Send data to the browser using printf() semantics.
+//
+// Works exactly like mg_write(), but allows to do message formatting.
+// Note that mg_printf() uses internal buffer of size IO_BUF_SIZE
+// (8 Kb by default) as temporary message storage for formatting. Do not
+// print data that is bigger than that, otherwise it will be truncated.
+int mg_printf(struct mg_connection *, const char *fmt, ...)
+#ifdef __GNUC__
+__attribute__((format(printf, 2, 3)))
+#endif
+;
+
+
+// Send contents of the entire file together with HTTP headers.
+void mg_send_file(struct mg_connection *conn, const char *path);
+
+
+// Read data from the remote end, return number of bytes read.
+int mg_read(struct mg_connection *, void *buf, size_t len);
+
+
+// Get the value of particular HTTP header.
+//
+// This is a helper function. It traverses request_info->http_headers array,
+// and if the header is present in the array, returns its value. If it is
+// not present, NULL is returned.
+const char *mg_get_header(const struct mg_connection *, const char *name);
+
+
+// Get a value of particular form variable.
+//
+// Parameters:
+// data: pointer to form-uri-encoded buffer. This could be either POST data,
+// or request_info.query_string.
+// data_len: length of the encoded data.
+// var_name: variable name to decode from the buffer
+// buf: destination buffer for the decoded variable
+// buf_len: length of the destination buffer
+//
+// Return:
+// On success, length of the decoded variable.
+// On error, -1 (variable not found, or destination buffer is too small).
+//
+// Destination buffer is guaranteed to be '\0' - terminated. In case of
+// failure, dst[0] == '\0'.
+int mg_get_var(const char *data, size_t data_len,
+ const char *var_name, char *buf, size_t buf_len);
+
+// Fetch value of certain cookie variable into the destination buffer.
+//
+// Destination buffer is guaranteed to be '\0' - terminated. In case of
+// failure, dst[0] == '\0'. Note that RFC allows many occurrences of the same
+// parameter. This function returns only first occurrence.
+//
+// Return:
+// On success, value length.
+// On error, 0 (either "Cookie:" header is not present at all, or the
+// requested parameter is not found, or destination buffer is too small
+// to hold the value).
+int mg_get_cookie(const struct mg_connection *,
+ const char *cookie_name, char *buf, size_t buf_len);
+
+
+// Return Mongoose version.
const char *mg_version(void);
-/*
- * Print command line usage string.
- */
-void mg_show_usage_string(FILE *fp);
+// MD5 hash given strings.
+// Buffer 'buf' must be 33 bytes long. Varargs is a NULL terminated list of
+// asciiz strings. When function returns, buf will contain human-readable
+// MD5 hash. Example:
+// char buf[33];
+// mg_md5(buf, "aa", "bb", NULL);
+void mg_md5(char *buf, ...);
+
#ifdef __cplusplus
}
-#endif /* __cplusplus */
+#endif // __cplusplus
-#endif /* MONGOOSE_HEADER_INCLUDED */
+#endif // MONGOOSE_HEADER_INCLUDED