diff options
Diffstat (limited to 'tdehtml/java/org/kde/kjas/server/Main.java')
| -rw-r--r-- | tdehtml/java/org/kde/kjas/server/Main.java | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/tdehtml/java/org/kde/kjas/server/Main.java b/tdehtml/java/org/kde/kjas/server/Main.java new file mode 100644 index 000000000..50ccb14f1 --- /dev/null +++ b/tdehtml/java/org/kde/kjas/server/Main.java @@ -0,0 +1,178 @@ +package org.kde.kjas.server; + +import java.io.*; +import java.security.*; +import java.net.*; + +/** + * KJAS server recognizes these variablers: + * kjas.debug - makes server actions verbose + * kjas.showConsole - shows Java Console window + * kjas.log - save a transcript of the debug output to /tmp/kjas.log + */ + +public class Main +{ + //We need to save a reference to the original stdout + //for sending messages back + static final KJASProtocolHandler protocol; + static Console console = null; + private static final boolean show_console; + public static final boolean Debug; + public static final boolean log; + static final boolean cacheImages; + static float java_version = (float) 0.0; + static String proxyHost = null; + static int proxyPort = 0; + private static boolean good_jdk = true; + + /************************************************************************** + * Initialization + **************************************************************************/ + static + { + Debug = System.getProperty( "kjas.debug" ) != null; + + show_console = System.getProperty( "kjas.showConsole" ) != null; + + if( System.getProperty( "kjas.useKio" ) != null ) + URL.setURLStreamHandlerFactory( new KJASURLStreamHandlerFactory() ); + + log = System.getProperty( "kjas.log" ) != null; + + cacheImages = System.getProperty( "kjas.noImageCache" ) != null; + + // determine system proxy + proxyHost = System.getProperty( "http.proxyHost" ); + String proxyPortString = System.getProperty( "http.proxyPort" ); + try { + proxyPort = Integer.parseInt(proxyPortString); + } catch (Exception e) { + } + //Main.debug( "JVM version = " + System.getProperty( "java.version" ) ); + String version = System.getProperty("java.version").substring( 0, 3 ); + // Hack for SGI Java2 runtime + if (version == "Jav") { // Skip over JavaVM- (the first 7 chars) + version = System.getProperty("java.version").substring(7,3); + } + //Main.debug( "JVM numerical version = " + version ); + try { + java_version = Float.parseFloat( version ); + if( java_version < 1.2 ) + good_jdk = false; + } catch( NumberFormatException e ) { + good_jdk = false; + } + PrintStream protocol_stdout = System.out; + console = new KJASSwingConsole(); + protocol = new KJASProtocolHandler( System.in, protocol_stdout ); + } + + /************************************************************************** + * Public Utility functions available to the KJAS framework + **************************************************************************/ + public static void debug( String msg ) + { + if( Debug ) + { + System.out.println( "KJAS: " + msg ); + } + } + public static void info (String msg ) { + System.err.println( "KJAS: " + msg ); + } + + public static void kjas_err( String msg, Exception e ) + { + System.err.println( msg ); + System.err.println( "Backtrace: " ); + e.printStackTrace(); + } + + public static void kjas_err( String msg, Throwable t ) + { + System.err.println( msg ); + t.printStackTrace(); + } + private Main() { + } + + /************************************************************************** + * Main- create the command loop + **************************************************************************/ + public static void main( String[] args ) + { + if( !good_jdk ) + { + console.setVisible( true ); + System.err.println( "ERROR: This version of Java is not supported for security reasons." ); + System.err.println( "\t\tPlease use Java version 1.2 or higher." ); + return; + } + + if( show_console ) + console.setVisible( true ); + + // set up https + boolean hasHTTPS = true; + + try { + // https needs a secure socket provider + Provider[] sslProviders = Security.getProviders("SSLContext.SSL"); + + if (sslProviders == null || sslProviders.length == 0) { + // as a fallback, try to dynamically install Sun's jsse + Class provider = Class.forName("com.sun.net.ssl.internal.ssl.Provider"); + + if (provider != null) { + Main.debug("adding Security Provider"); + Provider p = (Provider) provider.newInstance(); + Security.addProvider(p); + } else { + // Try jessie (http://www.nongnu.org/jessie/) as a fallback + // available in the Free World + provider = Class.forName("org.metastatic.jessie.provider.Jessie"); + if (provider != null) { + Main.debug("adding Jessie as Security Provider"); + Provider p = (Provider) provider.newInstance(); + Security.addProvider(p); + } else { + Main.debug("could not get class: com.sun.net.ssl.internal.ssl.Provider"); + hasHTTPS = false; + } + } + } + + if (hasHTTPS) { + // allow user to provide own protocol handler + // -Djava.protocol.handler.pkgs = user.package.name + // getting and setting of properties might generate SecurityExceptions + // so this needs to be in a try block + String handlerPkgs = System.getProperty("java.protocol.handler.pkgs"); + + if (handlerPkgs == null) { + // set default packages for Sun and IBM + handlerPkgs = "com.sun.net.ssl.internal.www.protocol" + + "|com.ibm.net.ssl.www.protocol"; + } else { + // add default packages for Sun and IBM as fallback + handlerPkgs += "|com.sun.net.ssl.internal.www.protocol" + + "|com.ibm.net.ssl.www.protocol"; + } + + System.setProperty("java.protocol.handler.pkgs", handlerPkgs); + } + } catch (Exception e) { + hasHTTPS = false; + } + + if (hasHTTPS == false) { + System.out.println("Unable to load JSSE SSL stream handler, https support not available"); + System.out.println("For more information see http://java.sun.com/products/jsse/"); + } + + //start the command parsing + protocol.commandLoop(); + } + +} |