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Diffstat (limited to 'mDNSResponder/Clients/Java/BrowserApp.java')
| -rw-r--r-- | mDNSResponder/Clients/Java/BrowserApp.java | 420 |
1 files changed, 420 insertions, 0 deletions
diff --git a/mDNSResponder/Clients/Java/BrowserApp.java b/mDNSResponder/Clients/Java/BrowserApp.java new file mode 100644 index 00000000..8f512151 --- /dev/null +++ b/mDNSResponder/Clients/Java/BrowserApp.java @@ -0,0 +1,420 @@ +/* -*- Mode: Java; tab-width: 4 -*- + * + * Copyright (c) 2004 Apple Computer, Inc. All rights reserved. + * + * Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. + * ("Apple") in consideration of your agreement to the following terms, and your + * use, installation, modification or redistribution of this Apple software + * constitutes acceptance of these terms. If you do not agree with these terms, + * please do not use, install, modify or redistribute this Apple software. + * + * In consideration of your agreement to abide by the following terms, and subject + * to these terms, Apple grants you a personal, non-exclusive license, under Apple's + * copyrights in this original Apple software (the "Apple Software"), to use, + * reproduce, modify and redistribute the Apple Software, with or without + * modifications, in source and/or binary forms; provided that if you redistribute + * the Apple Software in its entirety and without modifications, you must retain + * this notice and the following text and disclaimers in all such redistributions of + * the Apple Software. Neither the name, trademarks, service marks or logos of + * Apple Computer, Inc. may be used to endorse or promote products derived from the + * Apple Software without specific prior written permission from Apple. Except as + * expressly stated in this notice, no other rights or licenses, express or implied, + * are granted by Apple herein, including but not limited to any patent rights that + * may be infringed by your derivative works or by other works in which the Apple + * Software may be incorporated. + * + * The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO + * WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED + * WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN + * COMBINATION WITH YOUR PRODUCTS. + * + * IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE + * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION + * OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT + * (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + + BrowserApp demonstrates how to use DNS-SD to browse for and resolve services. + + To do: + - display resolved TXTRecord + */ + + +import java.awt.*; +import java.awt.event.*; +import java.util.*; +import java.text.*; +import javax.swing.*; +import javax.swing.event.*; + +import com.apple.dnssd.*; + + +class BrowserApp implements ListSelectionListener, ResolveListener, Runnable +{ + static BrowserApp app; + JFrame frame; + DomainListModel domainList; + BrowserListModel servicesList, serviceList; + JList domainPane, servicesPane, servicePane; + DNSSDService servicesBrowser, serviceBrowser, domainBrowser; + JLabel hostLabel, portLabel; + String hostNameForUpdate; + int portForUpdate; + + public BrowserApp() + { + frame = new JFrame("DNS-SD Service Browser"); + frame.addWindowListener(new WindowAdapter() { + public void windowClosing(WindowEvent e) {System.exit(0);} + }); + + domainList = new DomainListModel(); + servicesList = new ServicesBrowserListModel(); + serviceList = new BrowserListModel(); + + try { + domainBrowser = DNSSD.enumerateDomains( DNSSD.BROWSE_DOMAINS, 0, domainList); + + servicesBrowser = DNSSD.browse( 0, 0, "_services._dns-sd._udp.", "", servicesList); + serviceBrowser = null; + } + catch ( Exception ex) { terminateWithException( ex); } + + this.setupSubPanes( frame.getContentPane()); + frame.pack(); + frame.setVisible(true); + } + + protected void setupSubPanes( Container parent) + { + parent.setLayout( new BoxLayout( parent, BoxLayout.Y_AXIS)); + + JPanel browserRow = new JPanel(); + browserRow.setLayout( new BoxLayout( browserRow, BoxLayout.X_AXIS)); + domainPane = new JList( domainList); + domainPane.addListSelectionListener( this); + JScrollPane domainScroller = new JScrollPane( domainPane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); + browserRow.add( domainScroller); + servicesPane = new JList( servicesList); + servicesPane.addListSelectionListener( this); + JScrollPane servicesScroller = new JScrollPane( servicesPane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); + browserRow.add( servicesScroller); + servicePane = new JList( serviceList); + servicePane.addListSelectionListener( this); + JScrollPane serviceScroller = new JScrollPane( servicePane, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS); + browserRow.add( serviceScroller); + +/* + JPanel buttonRow = new JPanel(); + buttonRow.setLayout( new BoxLayout( buttonRow, BoxLayout.X_AXIS)); + buttonRow.add( Box.createHorizontalGlue()); + JButton connectButton = new JButton( "Don't Connect"); + buttonRow.add( connectButton); + buttonRow.add( Box.createRigidArea( new Dimension( 16, 0))); +*/ + + JPanel labelRow = new JPanel(); + labelRow.setLayout( new BoxLayout( labelRow, BoxLayout.X_AXIS)); + labelRow.add( new JLabel( " Host: ")); + hostLabel = new JLabel(); + labelRow.add( hostLabel); + labelRow.add( Box.createRigidArea( new Dimension( 32, 0))); + labelRow.add( new JLabel( "Port: ")); + portLabel = new JLabel(); + labelRow.add( portLabel); + labelRow.add( Box.createHorizontalGlue()); + + parent.add( browserRow); + parent.add( Box.createRigidArea( new Dimension( 0, 8))); + parent.add( labelRow); +// parent.add( buttonRow); + parent.add( Box.createRigidArea( new Dimension( 0, 16))); + } + + public void valueChanged( ListSelectionEvent e) + { + try { + if ( e.getSource() == domainPane && !e.getValueIsAdjusting()) + { + int newSel = domainPane.getSelectedIndex(); + if ( -1 != newSel) + { + if ( serviceBrowser != null) + serviceBrowser.stop(); + serviceList.removeAllElements(); + servicesBrowser = DNSSD.browse( 0, 0, "_services._dns-sd._udp.", "", servicesList); + } + } + else if ( e.getSource() == servicesPane && !e.getValueIsAdjusting()) + { + int newSel = servicesPane.getSelectedIndex(); + if ( serviceBrowser != null) + serviceBrowser.stop(); + serviceList.removeAllElements(); + if ( -1 != newSel) + serviceBrowser = DNSSD.browse( 0, 0, servicesList.getNthRegType( newSel), "", serviceList); + } + else if ( e.getSource() == servicePane && !e.getValueIsAdjusting()) + { + int newSel = servicePane.getSelectedIndex(); + + hostLabel.setText( ""); + portLabel.setText( ""); + + if ( -1 != newSel) + { + DNSSD.resolve( 0, serviceList.getNthInterface( newSel), + serviceList.getNthServiceName( newSel), + serviceList.getNthRegType( newSel), + serviceList.getNthDomain( newSel), + this); + } + } + } + catch ( Exception ex) { terminateWithException( ex); } + } + + public void run() + { + hostLabel.setText( hostNameForUpdate); + portLabel.setText( String.valueOf( portForUpdate)); + } + + public void serviceResolved( DNSSDService resolver, int flags, int ifIndex, String fullName, + String hostName, int port, TXTRecord txtRecord) + { + // We want to update GUI on the AWT event dispatching thread, but we can't stop + // the resolve from that thread, since stop() is synchronized with this callback. + // So, we stop the resolve on this thread, then invokeAndWait on the AWT event thread. + + resolver.stop(); + + hostNameForUpdate = hostName; + portForUpdate = port; + + try { + SwingUtilities.invokeAndWait(this); + } + catch ( Exception e) + { + e.printStackTrace(); + } + } + + public void operationFailed( DNSSDService service, int errorCode) + { + service.stop(); + // handle failure here + } + + protected static void terminateWithException( Exception e) + { + e.printStackTrace(); + System.exit( -1); + } + + public static void main(String s[]) + { + app = new BrowserApp(); + } +} + + +class BrowserListModel extends DefaultListModel implements BrowseListener, Runnable +{ + public BrowserListModel() + { + addCache = new Vector(); + removeCache = new Vector(); + } + + /* The Browser invokes this callback when a service is discovered. */ + public void serviceFound( DNSSDService browser, int flags, int ifIndex, + String serviceName, String regType, String domain) + { + addCache.add( new BrowserListElem( serviceName, domain, regType, ifIndex)); + if ( ( flags & DNSSD.MORE_COMING) == 0) + this.scheduleOnEventThread(); + } + + public void serviceLost( DNSSDService browser, int flags, int ifIndex, + String serviceName, String regType, String domain) + { + removeCache.add( serviceName); + if ( ( flags & DNSSD.MORE_COMING) == 0) + this.scheduleOnEventThread(); + } + + public void run() + { + while ( removeCache.size() > 0) + { + String serviceName = (String) removeCache.remove( removeCache.size() - 1); + int matchInd = this.findMatching( serviceName); // probably doesn't handle near-duplicates well. + if ( matchInd != -1) + this.removeElementAt( matchInd); + } + while ( addCache.size() > 0) + { + BrowserListElem elem = (BrowserListElem) addCache.remove( addCache.size() - 1); + if ( -1 == this.findMatching( elem.fServiceName)) // probably doesn't handle near-duplicates well. + this.addInSortOrder( elem); + } + } + + public void operationFailed( DNSSDService service, int errorCode) + { + // handle failure here + } + + /* The list contains BrowserListElem's */ + class BrowserListElem + { + public BrowserListElem( String serviceName, String domain, String type, int ifIndex) + { fServiceName = serviceName; fDomain = domain; fType = type; fInt = ifIndex; } + + public String toString() { return fServiceName; } + + public String fServiceName, fDomain, fType; + public int fInt; + } + + public String getNthServiceName( int n) + { + BrowserListElem sel = (BrowserListElem) this.get( n); + return sel.fServiceName; + } + + public String getNthRegType( int n) + { + BrowserListElem sel = (BrowserListElem) this.get( n); + return sel.fType; + } + + public String getNthDomain( int n) + { + BrowserListElem sel = (BrowserListElem) this.get( n); + return sel.fDomain; + } + + public int getNthInterface( int n) + { + BrowserListElem sel = (BrowserListElem) this.get( n); + return sel.fInt; + } + + protected void addInSortOrder( Object obj) + { + int i; + for ( i = 0; i < this.size(); i++) + if ( sCollator.compare( obj.toString(), this.getElementAt( i).toString()) < 0) + break; + this.add( i, obj); + } + + protected int findMatching( String match) + { + for ( int i = 0; i < this.size(); i++) + if ( match.equals( this.getElementAt( i).toString())) + return i; + return -1; + } + + protected void scheduleOnEventThread() + { + try { + SwingUtilities.invokeAndWait( this); + } + catch ( Exception e) + { + e.printStackTrace(); + } + } + + protected Vector removeCache; // list of serviceNames to remove + protected Vector addCache; // list of BrowserListElem's to add + + protected static Collator sCollator; + + static // Initialize our static variables + { + sCollator = Collator.getInstance(); + sCollator.setStrength( Collator.PRIMARY); + } +} + + +class ServicesBrowserListModel extends BrowserListModel +{ + /* The Browser invokes this callback when a service is discovered. */ + public void serviceFound( DNSSDService browser, int flags, int ifIndex, + String serviceName, String regType, String domain) + // Overridden to stuff serviceName into regType and make serviceName human-readable. + { + regType = serviceName + ( regType.startsWith( "_udp.") ? "._udp." : "._tcp."); + super.serviceFound( browser, flags, ifIndex, this.mapTypeToName( serviceName), regType, domain); + } + + public void serviceLost( DNSSDService browser, int flags, int ifIndex, + String serviceName, String regType, String domain) + // Overridden to make serviceName human-readable. + { + super.serviceLost( browser, flags, ifIndex, this.mapTypeToName( serviceName), regType, domain); + } + + protected String mapTypeToName( String type) + // Convert a registration type into a human-readable string. Returns original string on no-match. + { + final String[] namedServices = { + "_afpovertcp", "Apple File Sharing", + "_http", "World Wide Web servers", + "_daap", "Digital Audio Access", + "_apple-sasl", "Apple Password Servers", + "_distcc", "Distributed Compiler nodes", + "_finger", "Finger servers", + "_ichat", "iChat clients", + "_presence", "iChat AV clients", + "_ssh", "SSH servers", + "_telnet", "Telnet servers", + "_workstation", "Macintosh Manager clients", + "_bootps", "BootP servers", + "_xserveraid", "XServe RAID devices", + "_eppc", "Remote AppleEvents", + "_ftp", "FTP services", + "_tftp", "TFTP services" + }; + + for ( int i = 0; i < namedServices.length; i+=2) + if ( namedServices[i].equals( type)) + return namedServices[i + 1]; + return type; + } +} + + +class DomainListModel extends DefaultListModel implements DomainListener +{ + /* Called when a domain is discovered. */ + public void domainFound( DNSSDService domainEnum, int flags, int ifIndex, String domain) + { + if ( !this.contains( domain)) + this.addElement( domain); + } + + public void domainLost( DNSSDService domainEnum, int flags, int ifIndex, String domain) + { + if ( this.contains( domain)) + this.removeElement( domain); + } + + public void operationFailed( DNSSDService service, int errorCode) + { + // handle failure here + } +} + |