--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebKit/Plugins/WebPluginDatabase.m Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,388 @@
+/*
+ * Copyright (C) 2005 Apple Computer, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#import <WebKit/WebPluginDatabase.h>
+
+#import <JavaScriptCore/Assertions.h>
+#import <WebKit/WebBasePluginPackage.h>
+#import <WebKit/WebDataSourcePrivate.h>
+#import <WebKit/WebFrame.h>
+#import <WebKit/WebFrameViewInternal.h>
+#import <WebKit/WebHTMLRepresentation.h>
+#import <WebKit/WebHTMLView.h>
+#import <WebKit/WebKitLogging.h>
+#import <WebKit/WebNetscapePluginPackage.h>
+#import <WebKit/WebPluginPackage.h>
+#import <WebKit/WebViewPrivate.h>
+#import <WebKitSystemInterface.h>
+
+@interface WebPluginDatabase (Internal)
++ (NSArray *)_defaultPlugInPaths;
+- (NSArray *)_plugInPaths;
+- (void)_addPlugin:(WebBasePluginPackage *)plugin;
+- (void)_removePlugin:(WebBasePluginPackage *)plugin;
+- (NSMutableSet *)_scanForNewPlugins;
+@end
+
+@implementation WebPluginDatabase
+
+static WebPluginDatabase *sharedDatabase = nil;
+
++ (WebPluginDatabase *)sharedDatabase
+{
+ if (!sharedDatabase) {
+ sharedDatabase = [[WebPluginDatabase alloc] init];
+ [sharedDatabase setPlugInPaths:[self _defaultPlugInPaths]];
+ [sharedDatabase refresh];
+ }
+
+ return sharedDatabase;
+}
+
++ (void)closeSharedDatabase
+{
+ [sharedDatabase close];
+}
+
+- (WebBasePluginPackage *)pluginForKey:(NSString *)key withEnumeratorSelector:(SEL)enumeratorSelector
+{
+ WebBasePluginPackage *plugin = nil;
+ WebBasePluginPackage *webPlugin = nil;
+#ifndef __LP64__
+ WebBasePluginPackage *CFMPlugin = nil;
+ WebBasePluginPackage *machoPlugin = nil;
+#endif
+ NSEnumerator *pluginEnumerator = [plugins objectEnumerator];
+ key = [key lowercaseString];
+
+ while ((plugin = [pluginEnumerator nextObject]) != nil) {
+ if ([[[plugin performSelector:enumeratorSelector] allObjects] containsObject:key]) {
+ if ([plugin isKindOfClass:[WebPluginPackage class]]) {
+ if (!webPlugin)
+ webPlugin = plugin;
+ }
+#ifndef __LP64__
+ else if([plugin isKindOfClass:[WebNetscapePluginPackage class]]) {
+ WebExecutableType executableType = [(WebNetscapePluginPackage *)plugin executableType];
+ if (executableType == WebCFMExecutableType) {
+ if (!CFMPlugin)
+ CFMPlugin = plugin;
+ } else if (executableType == WebMachOExecutableType) {
+ if (!machoPlugin)
+ machoPlugin = plugin;
+ } else {
+ ASSERT_NOT_REACHED();
+ }
+ } else {
+ ASSERT_NOT_REACHED();
+ }
+#endif
+ }
+ }
+
+ // Allow other plug-ins to win over QT because if the user has installed a plug-in that can handle a type
+ // that the QT plug-in can handle, they probably intended to override QT.
+ if (webPlugin && ![webPlugin isQuickTimePlugIn])
+ return webPlugin;
+
+#ifndef __LP64__
+ else if (machoPlugin && ![machoPlugin isQuickTimePlugIn])
+ return machoPlugin;
+ else if (CFMPlugin && ![CFMPlugin isQuickTimePlugIn])
+ return CFMPlugin;
+#endif
+ else if (webPlugin)
+ return webPlugin;
+#ifndef __LP64__
+ else if (machoPlugin)
+ return machoPlugin;
+ else if (CFMPlugin)
+ return CFMPlugin;
+#endif
+ return nil;
+}
+
+- (WebBasePluginPackage *)pluginForMIMEType:(NSString *)MIMEType
+{
+ return [self pluginForKey:[MIMEType lowercaseString]
+ withEnumeratorSelector:@selector(MIMETypeEnumerator)];
+}
+
+- (WebBasePluginPackage *)pluginForExtension:(NSString *)extension
+{
+ WebBasePluginPackage *plugin = [self pluginForKey:[extension lowercaseString]
+ withEnumeratorSelector:@selector(extensionEnumerator)];
+ if (!plugin) {
+ // If no plug-in was found from the extension, attempt to map from the extension to a MIME type
+ // and find the a plug-in from the MIME type. This is done in case the plug-in has not fully specified
+ // an extension <-> MIME type mapping.
+ NSString *MIMEType = WKGetMIMETypeForExtension(extension);
+ if ([MIMEType length] > 0)
+ plugin = [self pluginForMIMEType:MIMEType];
+ }
+ return plugin;
+}
+
+- (NSArray *)plugins
+{
+ return [plugins allValues];
+}
+
+static NSArray *additionalWebPlugInPaths;
+
++ (void)setAdditionalWebPlugInPaths:(NSArray *)additionalPaths
+{
+ if (additionalPaths == additionalWebPlugInPaths)
+ return;
+
+ [additionalWebPlugInPaths release];
+ additionalWebPlugInPaths = [additionalPaths copy];
+
+ // One might be tempted to add additionalWebPlugInPaths to the global WebPluginDatabase here.
+ // For backward compatibility with earlier versions of the +setAdditionalWebPlugInPaths: SPI,
+ // we need to save a copy of the additional paths and not cause a refresh of the plugin DB
+ // at this time.
+ // See Radars 4608487 and 4609047.
+}
+
+- (void)setPlugInPaths:(NSArray *)newPaths
+{
+ if (plugInPaths == newPaths)
+ return;
+
+ [plugInPaths release];
+ plugInPaths = [newPaths copy];
+}
+
+- (void)close
+{
+ NSEnumerator *pluginEnumerator = [[self plugins] objectEnumerator];
+ WebBasePluginPackage *plugin;
+ while ((plugin = [pluginEnumerator nextObject]) != nil)
+ [self _removePlugin:plugin];
+ [plugins release];
+ plugins = nil;
+}
+
+- (id)init
+{
+ if (!(self = [super init]))
+ return nil;
+
+ registeredMIMETypes = [[NSMutableSet alloc] init];
+
+ return self;
+}
+
+- (void)dealloc
+{
+ [plugInPaths release];
+ [plugins release];
+ [registeredMIMETypes release];
+
+ [super dealloc];
+}
+
+- (void)refresh
+{
+ // This method does a bit of autoreleasing, so create an autorelease pool to ensure that calling
+ // -refresh multiple times does not bloat the default pool.
+ NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
+
+ // Create map from plug-in path to WebBasePluginPackage
+ if (!plugins)
+ plugins = [[NSMutableDictionary alloc] initWithCapacity:12];
+
+ // Find all plug-ins on disk
+ NSMutableSet *newPlugins = [self _scanForNewPlugins];
+
+ // Find plug-ins to remove from database (i.e., plug-ins that no longer exist on disk)
+ NSMutableSet *pluginsToRemove = [NSMutableSet set];
+ NSEnumerator *pluginEnumerator = [plugins objectEnumerator];
+ WebBasePluginPackage *plugin;
+ while ((plugin = [pluginEnumerator nextObject]) != nil) {
+ // Any plug-ins that were removed from disk since the last refresh should be removed from
+ // the database.
+ if (![newPlugins containsObject:plugin])
+ [pluginsToRemove addObject:plugin];
+
+ // Remove every member of 'plugins' from 'newPlugins'. After this loop exits, 'newPlugins'
+ // will be the set of new plug-ins that should be added to the database.
+ [newPlugins removeObject:plugin];
+ }
+
+#if !LOG_DISABLED
+ if ([newPlugins count] > 0)
+ LOG(Plugins, "New plugins:\n%@", newPlugins);
+ if ([pluginsToRemove count] > 0)
+ LOG(Plugins, "Removed plugins:\n%@", pluginsToRemove);
+#endif
+
+ // Remove plugins from database
+ pluginEnumerator = [pluginsToRemove objectEnumerator];
+ while ((plugin = [pluginEnumerator nextObject]) != nil)
+ [self _removePlugin:plugin];
+
+ // Add new plugins to database
+ pluginEnumerator = [newPlugins objectEnumerator];
+ while ((plugin = [pluginEnumerator nextObject]) != nil)
+ [self _addPlugin:plugin];
+
+ // Build a list of MIME types.
+ NSMutableSet *MIMETypes = [[NSMutableSet alloc] init];
+ pluginEnumerator = [plugins objectEnumerator];
+ while ((plugin = [pluginEnumerator nextObject]) != nil)
+ [MIMETypes addObjectsFromArray:[[plugin MIMETypeEnumerator] allObjects]];
+
+ // Register plug-in views and representations.
+ NSEnumerator *MIMEEnumerator = [MIMETypes objectEnumerator];
+ NSString *MIMEType;
+ while ((MIMEType = [MIMEEnumerator nextObject]) != nil) {
+ [registeredMIMETypes addObject:MIMEType];
+
+ if ([WebView canShowMIMETypeAsHTML:MIMEType])
+ // Don't allow plug-ins to override our core HTML types.
+ continue;
+ plugin = [self pluginForMIMEType:MIMEType];
+ if ([plugin isJavaPlugIn])
+ // Don't register the Java plug-in for a document view since Java files should be downloaded when not embedded.
+ continue;
+ if ([plugin isQuickTimePlugIn] && [[WebFrameView _viewTypesAllowImageTypeOmission:NO] objectForKey:MIMEType])
+ // Don't allow the QT plug-in to override any types because it claims many that we can handle ourselves.
+ continue;
+
+ if (self == sharedDatabase)
+ [WebView registerViewClass:[WebHTMLView class] representationClass:[WebHTMLRepresentation class] forMIMEType:MIMEType];
+ }
+ [MIMETypes release];
+
+ [pool drain];
+}
+
+- (BOOL)isMIMETypeRegistered:(NSString *)MIMEType
+{
+ return [registeredMIMETypes containsObject:MIMEType];
+}
+
+@end
+
+@implementation WebPluginDatabase (Internal)
+
++ (NSArray *)_defaultPlugInPaths
+{
+ // Plug-ins are found in order of precedence.
+ // If there are duplicates, the first found plug-in is used.
+ // For example, if there is a QuickTime.plugin in the users's home directory
+ // that is used instead of the /Library/Internet Plug-ins version.
+ // The purpose is to allow non-admin users to update their plug-ins.
+ return [NSArray arrayWithObjects:
+ [NSHomeDirectory() stringByAppendingPathComponent:@"Library/Internet Plug-Ins"],
+ @"/Library/Internet Plug-Ins",
+ [[NSBundle mainBundle] builtInPlugInsPath],
+ nil];
+}
+
+- (NSArray *)_plugInPaths
+{
+ if (self == sharedDatabase && additionalWebPlugInPaths) {
+ // Add additionalWebPlugInPaths to the global WebPluginDatabase. We do this here for
+ // backward compatibility with earlier versions of the +setAdditionalWebPlugInPaths: SPI,
+ // which simply saved a copy of the additional paths and did not cause the plugin DB to
+ // refresh. See Radars 4608487 and 4609047.
+ NSMutableArray *modifiedPlugInPaths = [[plugInPaths mutableCopy] autorelease];
+ [modifiedPlugInPaths addObjectsFromArray:additionalWebPlugInPaths];
+ return modifiedPlugInPaths;
+ } else
+ return plugInPaths;
+}
+
+- (void)_addPlugin:(WebBasePluginPackage *)plugin
+{
+ ASSERT(plugin);
+ NSString *pluginPath = [plugin path];
+ ASSERT(pluginPath);
+ [plugins setObject:plugin forKey:pluginPath];
+ [plugin wasAddedToPluginDatabase:self];
+}
+
+- (void)_removePlugin:(WebBasePluginPackage *)plugin
+{
+ ASSERT(plugin);
+
+ // Unregister plug-in's MIME type registrations
+ NSEnumerator *MIMETypeEnumerator = [plugin MIMETypeEnumerator];
+ NSString *MIMEType;
+ while ((MIMEType = [MIMETypeEnumerator nextObject])) {
+ if ([registeredMIMETypes containsObject:MIMEType]) {
+ if (self == sharedDatabase)
+ [WebView _unregisterViewClassAndRepresentationClassForMIMEType:MIMEType];
+ [registeredMIMETypes removeObject:MIMEType];
+ }
+ }
+
+ // Remove plug-in from database
+ NSString *pluginPath = [plugin path];
+ ASSERT(pluginPath);
+ [plugin retain];
+ [plugins removeObjectForKey:pluginPath];
+ [plugin wasRemovedFromPluginDatabase:self];
+ [plugin release];
+}
+
+- (NSMutableSet *)_scanForNewPlugins
+{
+ NSMutableSet *newPlugins = [NSMutableSet set];
+ NSEnumerator *directoryEnumerator = [[self _plugInPaths] objectEnumerator];
+ NSMutableSet *uniqueFilenames = [[NSMutableSet alloc] init];
+ NSFileManager *fileManager = [NSFileManager defaultManager];
+ NSString *pluginDirectory;
+ while ((pluginDirectory = [directoryEnumerator nextObject]) != nil) {
+ // Get contents of each plug-in directory
+ NSEnumerator *filenameEnumerator = [[fileManager directoryContentsAtPath:pluginDirectory] objectEnumerator];
+ NSString *filename;
+ while ((filename = [filenameEnumerator nextObject]) != nil) {
+ // Unique plug-ins by filename
+ if ([uniqueFilenames containsObject:filename])
+ continue;
+ [uniqueFilenames addObject:filename];
+
+ // Create a plug-in package for this path
+ NSString *pluginPath = [pluginDirectory stringByAppendingPathComponent:filename];
+ WebBasePluginPackage *pluginPackage = [plugins objectForKey:pluginPath];
+ if (!pluginPackage)
+ pluginPackage = [WebBasePluginPackage pluginWithPath:pluginPath];
+ if (pluginPackage)
+ [newPlugins addObject:pluginPackage];
+ }
+ }
+ [uniqueFilenames release];
+
+ return newPlugins;
+}
+
+@end