WebKit/mac/Plugins/WebBasePluginPackage.mm
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit/mac/Plugins/WebBasePluginPackage.mm	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,471 @@
+/*
+ * 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/WebBasePluginPackage.h>
+
+#import <algorithm>
+#import <WebCore/WebCoreObjCExtras.h>
+#import <WebKit/WebKitNSStringExtras.h>
+#import <WebKit/WebNSObjectExtras.h>
+#import <WebKit/WebNetscapePluginPackage.h>
+#import <WebKit/WebPluginPackage.h>
+#import <runtime/InitializeThreading.h>
+#import <wtf/Assertions.h>
+#import <wtf/Threading.h>
+#import <wtf/Vector.h>
+
+#import <WebKitSystemInterface.h>
+
+#import "WebKitLogging.h"
+#import "WebTypesInternal.h"
+
+#import <mach-o/arch.h>
+#import <mach-o/fat.h>
+#import <mach-o/loader.h>
+
+#define JavaCocoaPluginIdentifier   "com.apple.JavaPluginCocoa"
+#define JavaCarbonPluginIdentifier  "com.apple.JavaAppletPlugin"
+#define JavaCFMPluginFilename       "Java Applet Plugin Enabler"
+
+#define QuickTimeCarbonPluginIdentifier       "com.apple.QuickTime Plugin.plugin"
+#define QuickTimeCocoaPluginIdentifier        "com.apple.quicktime.webplugin"
+
+@interface NSArray (WebPluginExtensions)
+- (NSArray *)_web_lowercaseStrings;
+@end;
+
+using namespace std;
+using namespace WebCore;
+
+@implementation WebBasePluginPackage
+
++ (void)initialize
+{
+    JSC::initializeThreading();
+    WTF::initializeMainThreadToProcessMainThread();
+#ifndef BUILDING_ON_TIGER
+    WebCoreObjCFinalizeOnMainThread(self);
+#endif
+}
+
++ (WebBasePluginPackage *)pluginWithPath:(NSString *)pluginPath
+{
+    
+    WebBasePluginPackage *pluginPackage = [[WebPluginPackage alloc] initWithPath:pluginPath];
+
+    if (!pluginPackage) {
+#if ENABLE(NETSCAPE_PLUGIN_API)
+        pluginPackage = [[WebNetscapePluginPackage alloc] initWithPath:pluginPath];
+#else
+        return nil;
+#endif
+    }
+
+    return [pluginPackage autorelease];
+}
+
++ (NSString *)preferredLocalizationName
+{
+    return WebCFAutorelease(WKCopyCFLocalizationPreferredName(NULL));
+}
+
+static NSString *pathByResolvingSymlinksAndAliases(NSString *thePath)
+{
+    NSString *newPath = [thePath stringByResolvingSymlinksInPath];
+
+    FSRef fref;
+    OSStatus err;
+
+    err = FSPathMakeRef((const UInt8 *)[thePath fileSystemRepresentation], &fref, NULL);
+    if (err != noErr)
+        return newPath;
+
+    Boolean targetIsFolder;
+    Boolean wasAliased;
+    err = FSResolveAliasFileWithMountFlags(&fref, TRUE, &targetIsFolder, &wasAliased, kResolveAliasFileNoUI);
+    if (err != noErr)
+        return newPath;
+
+    if (wasAliased) {
+        CFURLRef URL = CFURLCreateFromFSRef(kCFAllocatorDefault, &fref);
+        newPath = [(NSURL *)URL path];
+        CFRelease(URL);
+    }
+
+    return newPath;
+}
+
+- (id)initWithPath:(NSString *)pluginPath
+{
+    if (!(self = [super init]))
+        return nil;
+        
+    path = pathByResolvingSymlinksAndAliases(pluginPath);
+    cfBundle.adoptCF(CFBundleCreate(kCFAllocatorDefault, (CFURLRef)[NSURL fileURLWithPath:path]));
+
+#ifndef __ppc__
+    // 32-bit PowerPC is the only platform where non-bundled CFM plugins are supported
+    if (!cfBundle) {
+        [self release];
+        return nil;
+    }
+#endif
+    
+    return self;
+}
+
+- (void)unload
+{
+}
+
+- (void)createPropertyListFile
+{
+    if ([self load] && BP_CreatePluginMIMETypesPreferences) {
+        BP_CreatePluginMIMETypesPreferences();
+        [self unload];
+    }
+}
+
+- (NSDictionary *)pListForPath:(NSString *)pListPath createFile:(BOOL)createFile
+{
+    if (createFile)
+        [self createPropertyListFile];
+    
+    NSDictionary *pList = nil;
+    NSData *data = [NSData dataWithContentsOfFile:pListPath];
+    if (data) {
+        pList = [NSPropertyListSerialization propertyListFromData:data
+                                                 mutabilityOption:NSPropertyListImmutable
+                                                           format:nil
+                                                 errorDescription:nil];
+    }
+    
+    return pList;
+}
+
+- (id)_objectForInfoDictionaryKey:(NSString *)key
+{
+    CFDictionaryRef bundleInfoDictionary = CFBundleGetInfoDictionary(cfBundle.get());
+    if (!bundleInfoDictionary)
+        return nil;
+
+    return (id)CFDictionaryGetValue(bundleInfoDictionary, key);
+}
+
+- (BOOL)getPluginInfoFromPLists
+{
+    if (!cfBundle)
+        return NO;
+    
+    NSDictionary *MIMETypes = nil;
+    NSString *pListFilename = [self _objectForInfoDictionaryKey:WebPluginMIMETypesFilenameKey];
+    
+    // Check if the MIME types are claimed in a plist in the user's preferences directory.
+    if (pListFilename) {
+        NSString *pListPath = [NSString stringWithFormat:@"%@/Library/Preferences/%@", NSHomeDirectory(), pListFilename];
+        NSDictionary *pList = [self pListForPath:pListPath createFile:NO];
+        if (pList) {
+            // If the plist isn't localized, have the plug-in recreate it in the preferred language.
+            NSString *localizationName = [pList objectForKey:WebPluginLocalizationNameKey];
+            if (![localizationName isEqualToString:[[self class] preferredLocalizationName]])
+                pList = [self pListForPath:pListPath createFile:YES];
+            MIMETypes = [pList objectForKey:WebPluginMIMETypesKey];
+        } else
+            // Plist doesn't exist, ask the plug-in to create it.
+            MIMETypes = [[self pListForPath:pListPath createFile:YES] objectForKey:WebPluginMIMETypesKey];
+    }
+
+    if (!MIMETypes) {
+        MIMETypes = [self _objectForInfoDictionaryKey:WebPluginMIMETypesKey];
+        if (!MIMETypes)
+            return NO;
+    }
+
+    NSEnumerator *keyEnumerator = [MIMETypes keyEnumerator];
+    NSDictionary *MIMEDictionary;
+    NSString *MIME, *description;
+    NSArray *extensions;
+
+    while ((MIME = [keyEnumerator nextObject]) != nil) {
+        MIMEDictionary = [MIMETypes objectForKey:MIME];
+        
+        // FIXME: Consider storing disabled MIME types.
+        NSNumber *isEnabled = [MIMEDictionary objectForKey:WebPluginTypeEnabledKey];
+        if (isEnabled && [isEnabled boolValue] == NO)
+            continue;
+
+        MimeClassInfo mimeClassInfo;
+        
+        extensions = [[MIMEDictionary objectForKey:WebPluginExtensionsKey] _web_lowercaseStrings];
+        for (NSUInteger i = 0; i < [extensions count]; ++i)
+            mimeClassInfo.extensions.append((NSString *)[extensions objectAtIndex:i]);
+
+        if ([extensions count] == 0)
+            extensions = [NSArray arrayWithObject:@""];
+
+        mimeClassInfo.type = String(MIME).lower();
+
+        description = [MIMEDictionary objectForKey:WebPluginTypeDescriptionKey];
+        mimeClassInfo.desc = description;
+
+        pluginInfo.mimes.append(mimeClassInfo);
+        if (!description)
+            description = @"";
+    }
+
+    NSString *filename = [(NSString *)path lastPathComponent];
+    pluginInfo.file = filename;
+
+    NSString *theName = [self _objectForInfoDictionaryKey:WebPluginNameKey];
+    if (!theName)
+        theName = filename;
+    pluginInfo.name = theName;
+
+    description = [self _objectForInfoDictionaryKey:WebPluginDescriptionKey];
+    if (!description)
+        description = filename;
+    pluginInfo.desc = description;
+
+    return YES;
+}
+
+- (BOOL)load
+{
+    if (cfBundle && !BP_CreatePluginMIMETypesPreferences)
+        BP_CreatePluginMIMETypesPreferences = (BP_CreatePluginMIMETypesPreferencesFuncPtr)CFBundleGetFunctionPointerForName(cfBundle.get(), CFSTR("BP_CreatePluginMIMETypesPreferences"));
+    
+    return YES;
+}
+
+- (void)dealloc
+{
+    ASSERT(!pluginDatabases || [pluginDatabases count] == 0);
+    [pluginDatabases release];
+    
+    [super dealloc];
+}
+
+- (void)finalize
+{
+    ASSERT_MAIN_THREAD();
+    ASSERT(!pluginDatabases || [pluginDatabases count] == 0);
+    [pluginDatabases release];
+
+    [super finalize];
+}
+
+- (const String&)path
+{
+    return path;
+}
+
+- (const PluginInfo&)pluginInfo
+{
+    return pluginInfo;
+}
+
+- (BOOL)supportsExtension:(const String&)extension
+{
+    ASSERT(extension.lower() == extension);
+    
+    for (size_t i = 0; i < pluginInfo.mimes.size(); ++i) {
+        const Vector<String>& extensions = pluginInfo.mimes[i].extensions;
+
+        if (find(extensions.begin(), extensions.end(), extension) != extensions.end())
+            return YES;
+    }
+
+    return NO;
+}
+
+- (BOOL)supportsMIMEType:(const WebCore::String&)mimeType
+{
+    ASSERT(mimeType.lower() == mimeType);
+    
+    for (size_t i = 0; i < pluginInfo.mimes.size(); ++i) {
+        if (pluginInfo.mimes[i].type == mimeType)
+            return YES;
+    }
+    
+    return NO;
+}
+
+- (NSString *)MIMETypeForExtension:(const String&)extension
+{
+    ASSERT(extension.lower() == extension);
+    
+    for (size_t i = 0; i < pluginInfo.mimes.size(); ++i) {
+        const MimeClassInfo& mimeClassInfo = pluginInfo.mimes[i];
+        const Vector<String>& extensions = mimeClassInfo.extensions;
+
+        if (find(extensions.begin(), extensions.end(), extension) != extensions.end())
+            return mimeClassInfo.type;
+    }
+
+    return nil;
+}
+
+- (BOOL)isQuickTimePlugIn
+{
+    const String& bundleIdentifier = [self bundleIdentifier];
+    return bundleIdentifier == QuickTimeCocoaPluginIdentifier || bundleIdentifier == QuickTimeCocoaPluginIdentifier;
+}
+
+- (BOOL)isJavaPlugIn
+{
+    const String& bundleIdentifier = [self bundleIdentifier];
+    return bundleIdentifier == JavaCocoaPluginIdentifier || bundleIdentifier == JavaCarbonPluginIdentifier ||
+        equalIgnoringCase(pluginInfo.file, JavaCFMPluginFilename);
+}
+
+static inline void swapIntsInHeader(uint8_t* bytes, unsigned length)
+{
+    for (unsigned i = 0; i < length; i += 4) 
+        *(uint32_t*)(bytes + i) = OSSwapInt32(*(uint32_t *)(bytes + i));
+}
+
+- (BOOL)isNativeLibraryData:(NSData *)data
+{
+    Vector<uint8_t, 512> bytes([data length]);
+    memcpy(bytes.data(), [data bytes], bytes.size());
+    
+    unsigned numArchs = 0;
+    struct fat_arch singleArch = { 0, 0, 0, 0, 0 };
+    struct fat_arch* archs = 0;
+       
+    if (bytes.size() >= sizeof(struct mach_header_64)) {
+        uint32_t magic = *reinterpret_cast<uint32_t*>(bytes.data());
+        
+        if (magic == MH_MAGIC || magic == MH_CIGAM) {
+            // We have a 32-bit thin binary
+            struct mach_header* header = (struct mach_header*)bytes.data();
+
+            // Check if we need to swap the bytes
+            if (magic == MH_CIGAM)
+                swapIntsInHeader(bytes.data(), bytes.size());
+    
+            singleArch.cputype = header->cputype;
+            singleArch.cpusubtype = header->cpusubtype;
+
+            archs = &singleArch;
+            numArchs = 1;
+        } else if (magic == MH_MAGIC_64 || magic == MH_CIGAM_64) {
+            // We have a 64-bit thin binary
+            struct mach_header_64* header = (struct mach_header_64*)bytes.data();
+
+            // Check if we need to swap the bytes
+            if (magic == MH_CIGAM_64)
+                swapIntsInHeader(bytes.data(), bytes.size());
+            
+            singleArch.cputype = header->cputype;
+            singleArch.cpusubtype = header->cpusubtype;
+            
+            archs = &singleArch;
+            numArchs = 1;
+        } else if (magic == FAT_MAGIC || magic == FAT_CIGAM) {
+            // We have a fat (universal) binary
+
+            // Check if we need to swap the bytes
+            if (magic == FAT_CIGAM)
+                swapIntsInHeader(bytes.data(), bytes.size());
+            
+            archs = (struct fat_arch*)(bytes.data() + sizeof(struct fat_header));            
+            numArchs = ((struct fat_header *)bytes.data())->nfat_arch;
+            
+            unsigned maxArchs = (bytes.size() - sizeof(struct fat_header)) / sizeof(struct fat_arch);
+            if (numArchs > maxArchs)
+                numArchs = maxArchs;
+        }            
+    }
+    
+    if (!archs || !numArchs)
+        return NO;
+    
+    const NXArchInfo* localArch = NXGetLocalArchInfo();
+    if (!localArch)
+        return NO;
+    
+    cpu_type_t cputype = localArch->cputype;
+    cpu_subtype_t cpusubtype = localArch->cpusubtype;
+    
+#ifdef __x86_64__
+    // NXGetLocalArchInfo returns CPU_TYPE_X86 even when running in 64-bit. 
+    // See <rdar://problem/4996965> for more information.
+    cputype = CPU_TYPE_X86_64;
+#endif
+    
+    return NXFindBestFatArch(cputype, cpusubtype, archs, numArchs) != 0;
+}
+
+- (UInt32)versionNumber
+{
+    // CFBundleGetVersionNumber doesn't work with all possible versioning schemes, but we think for now it's good enough for us.
+    return CFBundleGetVersionNumber(cfBundle.get());
+}
+
+- (void)wasAddedToPluginDatabase:(WebPluginDatabase *)database
+{    
+    if (!pluginDatabases)
+        pluginDatabases = [[NSMutableSet alloc] init];
+        
+    ASSERT(![pluginDatabases containsObject:database]);
+    [pluginDatabases addObject:database];
+}
+
+- (void)wasRemovedFromPluginDatabase:(WebPluginDatabase *)database
+{
+    ASSERT(pluginDatabases);
+    ASSERT([pluginDatabases containsObject:database]);
+
+    [pluginDatabases removeObject:database];
+}
+
+- (WebCore::String)bundleIdentifier
+{
+    return CFBundleGetIdentifier(cfBundle.get());
+}
+
+@end
+
+@implementation NSArray (WebPluginExtensions)
+
+- (NSArray *)_web_lowercaseStrings
+{
+    NSMutableArray *lowercaseStrings = [NSMutableArray arrayWithCapacity:[self count]];
+    NSEnumerator *strings = [self objectEnumerator];
+    NSString *string;
+
+    while ((string = [strings nextObject]) != nil) {
+        if ([string isKindOfClass:[NSString class]])
+            [lowercaseStrings addObject:[string lowercaseString]];
+    }
+
+    return lowercaseStrings;
+}
+
+@end