michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:   nsPluginsDirDarwin.cpp
michael@0:   
michael@0:   Mac OS X implementation of the nsPluginsDir/nsPluginsFile classes.
michael@0:   
michael@0:   by Patrick C. Beard.
michael@0:  */
michael@0: 
michael@0: #include "GeckoChildProcessHost.h"
michael@0: #include "base/process_util.h"
michael@0: 
michael@0: #include "prlink.h"
michael@0: #include "prnetdb.h"
michael@0: #include "nsXPCOM.h"
michael@0: 
michael@0: #include "nsPluginsDir.h"
michael@0: #include "nsNPAPIPlugin.h"
michael@0: #include "nsPluginsDirUtils.h"
michael@0: 
michael@0: #include "nsILocalFileMac.h"
michael@0: 
michael@0: #include <string.h>
michael@0: #include <stdio.h>
michael@0: #include <unistd.h>
michael@0: #include <fcntl.h>
michael@0: 
michael@0: #include <Carbon/Carbon.h>
michael@0: #include <CoreServices/CoreServices.h>
michael@0: #include <mach-o/loader.h>
michael@0: #include <mach-o/fat.h>
michael@0: 
michael@0: typedef NS_NPAPIPLUGIN_CALLBACK(const char *, NP_GETMIMEDESCRIPTION) ();
michael@0: typedef NS_NPAPIPLUGIN_CALLBACK(OSErr, BP_GETSUPPORTEDMIMETYPES) (BPSupportedMIMETypes *mimeInfo, UInt32 flags);
michael@0: 
michael@0: 
michael@0: /*
michael@0: ** Returns a CFBundleRef if the path refers to a Mac OS X bundle directory.
michael@0: ** The caller is responsible for calling CFRelease() to deallocate.
michael@0: */
michael@0: static CFBundleRef getPluginBundle(const char* path)
michael@0: {
michael@0:   CFBundleRef bundle = nullptr;
michael@0:   CFStringRef pathRef = ::CFStringCreateWithCString(nullptr, path,
michael@0:                                                     kCFStringEncodingUTF8);
michael@0:   if (pathRef) {
michael@0:     CFURLRef bundleURL = ::CFURLCreateWithFileSystemPath(nullptr, pathRef,
michael@0:                                                          kCFURLPOSIXPathStyle,
michael@0:                                                          true);
michael@0:     if (bundleURL) {
michael@0:       bundle = ::CFBundleCreate(nullptr, bundleURL);
michael@0:       ::CFRelease(bundleURL);
michael@0:     }
michael@0:     ::CFRelease(pathRef);
michael@0:   }
michael@0:   return bundle;
michael@0: }
michael@0: 
michael@0: static nsresult toCFURLRef(nsIFile* file, CFURLRef& outURL)
michael@0: {
michael@0:   nsCOMPtr<nsILocalFileMac> lfm = do_QueryInterface(file);
michael@0:   if (!lfm)
michael@0:     return NS_ERROR_FAILURE;
michael@0:   CFURLRef url;
michael@0:   nsresult rv = lfm->GetCFURL(&url);
michael@0:   if (NS_SUCCEEDED(rv))
michael@0:     outURL = url;
michael@0:   
michael@0:   return rv;
michael@0: }
michael@0: 
michael@0: bool nsPluginsDir::IsPluginFile(nsIFile* file)
michael@0: {
michael@0:   nsCString fileName;
michael@0:   file->GetNativeLeafName(fileName);
michael@0:   /*
michael@0:    * Don't load the VDP fake plugin, to avoid tripping a bad bug in OS X
michael@0:    * 10.5.3 (see bug 436575).
michael@0:    */
michael@0:   if (!strcmp(fileName.get(), "VerifiedDownloadPlugin.plugin")) {
michael@0:     NS_WARNING("Preventing load of VerifiedDownloadPlugin.plugin (see bug 436575)");
michael@0:     return false;
michael@0:   }
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: // Caller is responsible for freeing returned buffer.
michael@0: static char* CFStringRefToUTF8Buffer(CFStringRef cfString)
michael@0: {
michael@0:   const char* buffer = ::CFStringGetCStringPtr(cfString, kCFStringEncodingUTF8);
michael@0:   if (buffer) {
michael@0:     return PL_strdup(buffer);
michael@0:   }
michael@0: 
michael@0:   int bufferLength =
michael@0:     ::CFStringGetMaximumSizeForEncoding(::CFStringGetLength(cfString),
michael@0:                                         kCFStringEncodingUTF8) + 1;
michael@0:   char* newBuffer = static_cast<char*>(NS_Alloc(bufferLength));
michael@0:   if (!newBuffer) {
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   if (!::CFStringGetCString(cfString, newBuffer, bufferLength,
michael@0:                             kCFStringEncodingUTF8)) {
michael@0:     NS_Free(newBuffer);
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   newBuffer = static_cast<char*>(NS_Realloc(newBuffer,
michael@0:                                             strlen(newBuffer) + 1));
michael@0:   return newBuffer;
michael@0: }
michael@0: 
michael@0: class AutoCFTypeObject {
michael@0: public:
michael@0:   AutoCFTypeObject(CFTypeRef object)
michael@0:   {
michael@0:     mObject = object;
michael@0:   }
michael@0:   ~AutoCFTypeObject()
michael@0:   {
michael@0:     ::CFRelease(mObject);
michael@0:   }
michael@0: private:
michael@0:   CFTypeRef mObject;
michael@0: };
michael@0: 
michael@0: static Boolean MimeTypeEnabled(CFDictionaryRef mimeDict) {
michael@0:   if (!mimeDict) {
michael@0:     return true;
michael@0:   }
michael@0:   
michael@0:   CFTypeRef value;
michael@0:   if (::CFDictionaryGetValueIfPresent(mimeDict, CFSTR("WebPluginTypeEnabled"), &value)) {
michael@0:     if (value && ::CFGetTypeID(value) == ::CFBooleanGetTypeID()) {
michael@0:       return ::CFBooleanGetValue(static_cast<CFBooleanRef>(value));
michael@0:     }
michael@0:   }
michael@0:   return true;
michael@0: }
michael@0: 
michael@0: static CFDictionaryRef ParsePlistForMIMETypesFilename(CFBundleRef bundle)
michael@0: {
michael@0:   CFTypeRef mimeFileName = ::CFBundleGetValueForInfoDictionaryKey(bundle, CFSTR("WebPluginMIMETypesFilename"));
michael@0:   if (!mimeFileName || ::CFGetTypeID(mimeFileName) != ::CFStringGetTypeID()) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   FSRef homeDir;
michael@0:   if (::FSFindFolder(kUserDomain, kCurrentUserFolderType, kDontCreateFolder, &homeDir) != noErr) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   CFURLRef userDirURL = ::CFURLCreateFromFSRef(kCFAllocatorDefault, &homeDir);
michael@0:   if (!userDirURL) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   AutoCFTypeObject userDirURLAutorelease(userDirURL);
michael@0:   CFStringRef mimeFilePath = ::CFStringCreateWithFormat(kCFAllocatorDefault, nullptr, CFSTR("Library/Preferences/%@"), static_cast<CFStringRef>(mimeFileName));
michael@0:   if (!mimeFilePath) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   AutoCFTypeObject mimeFilePathAutorelease(mimeFilePath);
michael@0:   CFURLRef mimeFileURL = ::CFURLCreateWithFileSystemPathRelativeToBase(kCFAllocatorDefault, mimeFilePath, kCFURLPOSIXPathStyle, false, userDirURL);
michael@0:   if (!mimeFileURL) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   AutoCFTypeObject mimeFileURLAutorelease(mimeFileURL);
michael@0:   SInt32 errorCode = 0;
michael@0:   CFDataRef mimeFileData = nullptr;
michael@0:   Boolean result = ::CFURLCreateDataAndPropertiesFromResource(kCFAllocatorDefault, mimeFileURL, &mimeFileData, nullptr, nullptr, &errorCode);
michael@0:   if (!result) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   AutoCFTypeObject mimeFileDataAutorelease(mimeFileData);
michael@0:   if (errorCode != 0) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   CFPropertyListRef propertyList = ::CFPropertyListCreateFromXMLData(kCFAllocatorDefault, mimeFileData, kCFPropertyListImmutable, nullptr);
michael@0:   if (!propertyList) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   AutoCFTypeObject propertyListAutorelease(propertyList);
michael@0:   if (::CFGetTypeID(propertyList) != ::CFDictionaryGetTypeID()) {
michael@0:     return nullptr;
michael@0:   }
michael@0: 
michael@0:   CFTypeRef mimeTypes = ::CFDictionaryGetValue(static_cast<CFDictionaryRef>(propertyList), CFSTR("WebPluginMIMETypes"));
michael@0:   if (!mimeTypes || ::CFGetTypeID(mimeTypes) != ::CFDictionaryGetTypeID() || ::CFDictionaryGetCount(static_cast<CFDictionaryRef>(mimeTypes)) == 0) {
michael@0:     return nullptr;
michael@0:   }
michael@0:   
michael@0:   return static_cast<CFDictionaryRef>(::CFRetain(mimeTypes));
michael@0: }
michael@0: 
michael@0: static void ParsePlistPluginInfo(nsPluginInfo& info, CFBundleRef bundle)
michael@0: {
michael@0:   CFDictionaryRef mimeDict = ParsePlistForMIMETypesFilename(bundle);
michael@0:   
michael@0:   if (!mimeDict) {
michael@0:     CFTypeRef mimeTypes = ::CFBundleGetValueForInfoDictionaryKey(bundle, CFSTR("WebPluginMIMETypes"));
michael@0:     if (!mimeTypes || ::CFGetTypeID(mimeTypes) != ::CFDictionaryGetTypeID() || ::CFDictionaryGetCount(static_cast<CFDictionaryRef>(mimeTypes)) == 0)
michael@0:       return;
michael@0:     mimeDict = static_cast<CFDictionaryRef>(::CFRetain(mimeTypes));
michael@0:   }
michael@0:   
michael@0:   AutoCFTypeObject mimeDictAutorelease(mimeDict);
michael@0:   int mimeDictKeyCount = ::CFDictionaryGetCount(mimeDict);
michael@0: 
michael@0:   // Allocate memory for mime data
michael@0:   int mimeDataArraySize = mimeDictKeyCount * sizeof(char*);
michael@0:   info.fMimeTypeArray = static_cast<char**>(NS_Alloc(mimeDataArraySize));
michael@0:   if (!info.fMimeTypeArray)
michael@0:     return;
michael@0:   memset(info.fMimeTypeArray, 0, mimeDataArraySize);
michael@0:   info.fExtensionArray = static_cast<char**>(NS_Alloc(mimeDataArraySize));
michael@0:   if (!info.fExtensionArray)
michael@0:     return;
michael@0:   memset(info.fExtensionArray, 0, mimeDataArraySize);
michael@0:   info.fMimeDescriptionArray = static_cast<char**>(NS_Alloc(mimeDataArraySize));
michael@0:   if (!info.fMimeDescriptionArray)
michael@0:     return;
michael@0:   memset(info.fMimeDescriptionArray, 0, mimeDataArraySize);
michael@0: 
michael@0:   // Allocate memory for mime dictionary keys and values
michael@0:   nsAutoArrayPtr<CFTypeRef> keys(new CFTypeRef[mimeDictKeyCount]);
michael@0:   if (!keys)
michael@0:     return;
michael@0:   nsAutoArrayPtr<CFTypeRef> values(new CFTypeRef[mimeDictKeyCount]);
michael@0:   if (!values)
michael@0:     return;
michael@0:   
michael@0:   info.fVariantCount = 0;
michael@0: 
michael@0:   ::CFDictionaryGetKeysAndValues(mimeDict, keys, values);
michael@0:   for (int i = 0; i < mimeDictKeyCount; i++) {
michael@0:     CFTypeRef mimeString = keys[i];
michael@0:     if (!mimeString || ::CFGetTypeID(mimeString) != ::CFStringGetTypeID()) {
michael@0:       continue;
michael@0:     }
michael@0:     CFTypeRef mimeDict = values[i];
michael@0:     if (mimeDict && ::CFGetTypeID(mimeDict) == ::CFDictionaryGetTypeID()) {
michael@0:       if (!MimeTypeEnabled(static_cast<CFDictionaryRef>(mimeDict))) {
michael@0:         continue;
michael@0:       }
michael@0:       info.fMimeTypeArray[info.fVariantCount] = CFStringRefToUTF8Buffer(static_cast<CFStringRef>(mimeString));
michael@0:       if (!info.fMimeTypeArray[info.fVariantCount]) {
michael@0:         continue;
michael@0:       }
michael@0:       CFTypeRef extensions = ::CFDictionaryGetValue(static_cast<CFDictionaryRef>(mimeDict), CFSTR("WebPluginExtensions"));
michael@0:       if (extensions && ::CFGetTypeID(extensions) == ::CFArrayGetTypeID()) {
michael@0:         int extensionCount = ::CFArrayGetCount(static_cast<CFArrayRef>(extensions));
michael@0:         CFMutableStringRef extensionList = ::CFStringCreateMutable(kCFAllocatorDefault, 0);
michael@0:         for (int j = 0; j < extensionCount; j++) {
michael@0:           CFTypeRef extension = ::CFArrayGetValueAtIndex(static_cast<CFArrayRef>(extensions), j);
michael@0:           if (extension && ::CFGetTypeID(extension) == ::CFStringGetTypeID()) {
michael@0:             if (j > 0)
michael@0:               ::CFStringAppend(extensionList, CFSTR(","));
michael@0:             ::CFStringAppend(static_cast<CFMutableStringRef>(extensionList), static_cast<CFStringRef>(extension));
michael@0:           }
michael@0:         }
michael@0:         info.fExtensionArray[info.fVariantCount] = CFStringRefToUTF8Buffer(static_cast<CFStringRef>(extensionList));
michael@0:         ::CFRelease(extensionList);
michael@0:       }
michael@0:       CFTypeRef description = ::CFDictionaryGetValue(static_cast<CFDictionaryRef>(mimeDict), CFSTR("WebPluginTypeDescription"));
michael@0:       if (description && ::CFGetTypeID(description) == ::CFStringGetTypeID())
michael@0:         info.fMimeDescriptionArray[info.fVariantCount] = CFStringRefToUTF8Buffer(static_cast<CFStringRef>(description));
michael@0:     }
michael@0:     info.fVariantCount++;
michael@0:   }
michael@0: }
michael@0: 
michael@0: nsPluginFile::nsPluginFile(nsIFile *spec)
michael@0:     : mPlugin(spec)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsPluginFile::~nsPluginFile() {}
michael@0: 
michael@0: nsresult nsPluginFile::LoadPlugin(PRLibrary **outLibrary)
michael@0: {
michael@0:   if (!mPlugin)
michael@0:     return NS_ERROR_NULL_POINTER;
michael@0: 
michael@0:   // 64-bit NSPR does not (yet) support bundles.  So in 64-bit builds we need
michael@0:   // (for now) to load the bundle's executable.  However this can cause
michael@0:   // problems:  CFBundleCreate() doesn't run the bundle's executable's
michael@0:   // initialization code, while NSAddImage() and dlopen() do run it.  So using
michael@0:   // NSPR's dyld loading mechanisms here (NSAddImage() or dlopen()) can cause
michael@0:   // a bundle's initialization code to run earlier than expected, and lead to
michael@0:   // crashes.  See bug 577967.
michael@0: #ifdef __LP64__
michael@0:   char executablePath[PATH_MAX];
michael@0:   executablePath[0] = '\0';
michael@0:   nsAutoCString bundlePath;
michael@0:   mPlugin->GetNativePath(bundlePath);
michael@0:   CFStringRef pathRef = ::CFStringCreateWithCString(nullptr, bundlePath.get(),
michael@0:                                                     kCFStringEncodingUTF8);
michael@0:   if (pathRef) {
michael@0:     CFURLRef bundleURL = ::CFURLCreateWithFileSystemPath(nullptr, pathRef,
michael@0:                                                          kCFURLPOSIXPathStyle,
michael@0:                                                          true);
michael@0:     if (bundleURL) {
michael@0:       CFBundleRef bundle = ::CFBundleCreate(nullptr, bundleURL);
michael@0:       if (bundle) {
michael@0:         CFURLRef executableURL = ::CFBundleCopyExecutableURL(bundle);
michael@0:         if (executableURL) {
michael@0:           if (!::CFURLGetFileSystemRepresentation(executableURL, true, (UInt8*)&executablePath, PATH_MAX))
michael@0:             executablePath[0] = '\0';
michael@0:           ::CFRelease(executableURL);
michael@0:         }
michael@0:         ::CFRelease(bundle);
michael@0:       }
michael@0:       ::CFRelease(bundleURL);
michael@0:     }
michael@0:     ::CFRelease(pathRef); 
michael@0:   }
michael@0: #else
michael@0:   nsAutoCString bundlePath;
michael@0:   mPlugin->GetNativePath(bundlePath);
michael@0:   const char *executablePath = bundlePath.get();
michael@0: #endif
michael@0: 
michael@0:   *outLibrary = PR_LoadLibrary(executablePath);
michael@0:   pLibrary = *outLibrary;
michael@0:   if (!pLibrary) {
michael@0:     return NS_ERROR_FAILURE;
michael@0:   }
michael@0: #ifdef DEBUG
michael@0:   printf("[loaded plugin %s]\n", bundlePath.get());
michael@0: #endif
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: static char* p2cstrdup(StringPtr pstr)
michael@0: {
michael@0:   int len = pstr[0];
michael@0:   char* cstr = static_cast<char*>(NS_Alloc(len + 1));
michael@0:   if (cstr) {
michael@0:     memmove(cstr, pstr + 1, len);
michael@0:     cstr[len] = '\0';
michael@0:   }
michael@0:   return cstr;
michael@0: }
michael@0: 
michael@0: static char* GetNextPluginStringFromHandle(Handle h, short *index)
michael@0: {
michael@0:   char *ret = p2cstrdup((unsigned char*)(*h + *index));
michael@0:   *index += (ret ? strlen(ret) : 0) + 1;
michael@0:   return ret;
michael@0: }
michael@0: 
michael@0: static bool IsCompatibleArch(nsIFile *file)
michael@0: {
michael@0:   CFURLRef pluginURL = nullptr;
michael@0:   if (NS_FAILED(toCFURLRef(file, pluginURL)))
michael@0:     return false;
michael@0:   
michael@0:   bool isPluginFile = false;
michael@0: 
michael@0:   CFBundleRef pluginBundle = ::CFBundleCreate(kCFAllocatorDefault, pluginURL);
michael@0:   if (pluginBundle) {
michael@0:     UInt32 packageType, packageCreator;
michael@0:     ::CFBundleGetPackageInfo(pluginBundle, &packageType, &packageCreator);
michael@0:     if (packageType == 'BRPL' || packageType == 'IEPL' || packageType == 'NSPL') {
michael@0:       // Get path to plugin as a C string.
michael@0:       char executablePath[PATH_MAX];
michael@0:       executablePath[0] = '\0';
michael@0:       if (!::CFURLGetFileSystemRepresentation(pluginURL, true, (UInt8*)&executablePath, PATH_MAX)) {
michael@0:         executablePath[0] = '\0';
michael@0:       }
michael@0: 
michael@0:       uint32_t pluginLibArchitectures;
michael@0:       nsresult rv = mozilla::ipc::GeckoChildProcessHost::GetArchitecturesForBinary(executablePath, &pluginLibArchitectures);
michael@0:       if (NS_FAILED(rv)) {
michael@0:         return false;
michael@0:       }
michael@0: 
michael@0:       uint32_t supportedArchitectures =
michael@0: #ifdef __LP64__
michael@0:           mozilla::ipc::GeckoChildProcessHost::GetSupportedArchitecturesForProcessType(GeckoProcessType_Plugin);
michael@0: #else
michael@0:           base::GetCurrentProcessArchitecture();
michael@0: #endif
michael@0: 
michael@0:       // Consider the plugin architecture valid if there is any overlap in the masks.
michael@0:       isPluginFile = !!(supportedArchitectures & pluginLibArchitectures);
michael@0:     }
michael@0:     ::CFRelease(pluginBundle);
michael@0:   }
michael@0: 
michael@0:   ::CFRelease(pluginURL);
michael@0:   return isPluginFile;
michael@0: }
michael@0: 
michael@0: /**
michael@0:  * Obtains all of the information currently available for this plugin.
michael@0:  */
michael@0: nsresult nsPluginFile::GetPluginInfo(nsPluginInfo& info, PRLibrary **outLibrary)
michael@0: {
michael@0:   *outLibrary = nullptr;
michael@0: 
michael@0:   nsresult rv = NS_OK;
michael@0: 
michael@0:   if (!IsCompatibleArch(mPlugin)) {
michael@0:       return NS_ERROR_FAILURE;
michael@0:   }
michael@0: 
michael@0:   // clear out the info, except for the first field.
michael@0:   memset(&info, 0, sizeof(info));
michael@0: 
michael@0:   // Try to get a bundle reference.
michael@0:   nsAutoCString path;
michael@0:   if (NS_FAILED(rv = mPlugin->GetNativePath(path)))
michael@0:     return rv;
michael@0:   CFBundleRef bundle = getPluginBundle(path.get());
michael@0: 
michael@0:   // fill in full path
michael@0:   info.fFullPath = PL_strdup(path.get());
michael@0: 
michael@0:   // fill in file name
michael@0:   nsAutoCString fileName;
michael@0:   if (NS_FAILED(rv = mPlugin->GetNativeLeafName(fileName)))
michael@0:     return rv;
michael@0:   info.fFileName = PL_strdup(fileName.get());
michael@0: 
michael@0:   // Get fName
michael@0:   if (bundle) {
michael@0:     CFTypeRef name = ::CFBundleGetValueForInfoDictionaryKey(bundle, CFSTR("WebPluginName"));
michael@0:     if (name && ::CFGetTypeID(name) == ::CFStringGetTypeID())
michael@0:       info.fName = CFStringRefToUTF8Buffer(static_cast<CFStringRef>(name));
michael@0:   }
michael@0: 
michael@0:   // Get fDescription
michael@0:   if (bundle) {
michael@0:     CFTypeRef description = ::CFBundleGetValueForInfoDictionaryKey(bundle, CFSTR("WebPluginDescription"));
michael@0:     if (description && ::CFGetTypeID(description) == ::CFStringGetTypeID())
michael@0:       info.fDescription = CFStringRefToUTF8Buffer(static_cast<CFStringRef>(description));
michael@0:   }
michael@0: 
michael@0:   // Get fVersion
michael@0:   if (bundle) {
michael@0:     // Look for the release version first
michael@0:     CFTypeRef version = ::CFBundleGetValueForInfoDictionaryKey(bundle, CFSTR("CFBundleShortVersionString"));
michael@0:     if (!version) // try the build version
michael@0:       version = ::CFBundleGetValueForInfoDictionaryKey(bundle, kCFBundleVersionKey);
michael@0:     if (version && ::CFGetTypeID(version) == ::CFStringGetTypeID())
michael@0:       info.fVersion = CFStringRefToUTF8Buffer(static_cast<CFStringRef>(version));
michael@0:   }
michael@0: 
michael@0:   // The last thing we need to do is get MIME data
michael@0:   // fVariantCount, fMimeTypeArray, fExtensionArray, fMimeDescriptionArray
michael@0: 
michael@0:   // First look for data in a bundle plist
michael@0:   if (bundle) {
michael@0:     ParsePlistPluginInfo(info, bundle);
michael@0:     ::CFRelease(bundle);
michael@0:     if (info.fVariantCount > 0)
michael@0:       return NS_OK;
michael@0:   }
michael@0: 
michael@0:   // It's possible that our plugin has 2 entry points that'll give us mime type
michael@0:   // info. Quicktime does this to get around the need of having admin rights to
michael@0:   // change mime info in the resource fork. We need to use this info instead of
michael@0:   // the resource. See bug 113464.
michael@0: 
michael@0:   // Sadly we have to load the library for this to work.
michael@0:   rv = LoadPlugin(outLibrary);
michael@0:   if (NS_FAILED(rv))
michael@0:     return rv;
michael@0: 
michael@0:   // Try to get data from NP_GetMIMEDescription
michael@0:   if (pLibrary) {
michael@0:     NP_GETMIMEDESCRIPTION pfnGetMimeDesc = (NP_GETMIMEDESCRIPTION)PR_FindFunctionSymbol(pLibrary, NP_GETMIMEDESCRIPTION_NAME); 
michael@0:     if (pfnGetMimeDesc)
michael@0:       ParsePluginMimeDescription(pfnGetMimeDesc(), info);
michael@0:     if (info.fVariantCount)
michael@0:       return NS_OK;
michael@0:   }
michael@0: 
michael@0:   // We'll fill this in using BP_GetSupportedMIMETypes and/or resource fork data
michael@0:   BPSupportedMIMETypes mi = {kBPSupportedMIMETypesStructVers_1, nullptr, nullptr};
michael@0: 
michael@0:   // Try to get data from BP_GetSupportedMIMETypes
michael@0:   if (pLibrary) {
michael@0:     BP_GETSUPPORTEDMIMETYPES pfnMime = (BP_GETSUPPORTEDMIMETYPES)PR_FindFunctionSymbol(pLibrary, "BP_GetSupportedMIMETypes");
michael@0:     if (pfnMime && noErr == pfnMime(&mi, 0) && mi.typeStrings) {
michael@0:       info.fVariantCount = (**(short**)mi.typeStrings) / 2;
michael@0:       ::HLock(mi.typeStrings);
michael@0:       if (mi.infoStrings)  // it's possible some plugins have infoStrings missing
michael@0:         ::HLock(mi.infoStrings);
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   // Fill in the info struct based on the data in the BPSupportedMIMETypes struct
michael@0:   int variantCount = info.fVariantCount;
michael@0:   info.fMimeTypeArray = static_cast<char**>(NS_Alloc(variantCount * sizeof(char*)));
michael@0:   if (!info.fMimeTypeArray)
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0:   info.fExtensionArray = static_cast<char**>(NS_Alloc(variantCount * sizeof(char*)));
michael@0:   if (!info.fExtensionArray)
michael@0:     return NS_ERROR_OUT_OF_MEMORY;
michael@0:   if (mi.infoStrings) {
michael@0:     info.fMimeDescriptionArray = static_cast<char**>(NS_Alloc(variantCount * sizeof(char*)));
michael@0:     if (!info.fMimeDescriptionArray)
michael@0:       return NS_ERROR_OUT_OF_MEMORY;
michael@0:   }
michael@0:   short mimeIndex = 2;
michael@0:   short descriptionIndex = 2;
michael@0:   for (int i = 0; i < variantCount; i++) {
michael@0:     info.fMimeTypeArray[i] = GetNextPluginStringFromHandle(mi.typeStrings, &mimeIndex);
michael@0:     info.fExtensionArray[i] = GetNextPluginStringFromHandle(mi.typeStrings, &mimeIndex);
michael@0:     if (mi.infoStrings)
michael@0:       info.fMimeDescriptionArray[i] = GetNextPluginStringFromHandle(mi.infoStrings, &descriptionIndex);
michael@0:   }
michael@0: 
michael@0:   ::HUnlock(mi.typeStrings);
michael@0:   ::DisposeHandle(mi.typeStrings);
michael@0:   if (mi.infoStrings) {
michael@0:     ::HUnlock(mi.infoStrings);
michael@0:     ::DisposeHandle(mi.infoStrings);
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: nsresult nsPluginFile::FreePluginInfo(nsPluginInfo& info)
michael@0: {
michael@0:   NS_Free(info.fName);
michael@0:   NS_Free(info.fDescription);
michael@0:   int variantCount = info.fVariantCount;
michael@0:   for (int i = 0; i < variantCount; i++) {
michael@0:     NS_Free(info.fMimeTypeArray[i]);
michael@0:     NS_Free(info.fExtensionArray[i]);
michael@0:     NS_Free(info.fMimeDescriptionArray[i]);
michael@0:   }
michael@0:   NS_Free(info.fMimeTypeArray);
michael@0:   NS_Free(info.fMimeDescriptionArray);
michael@0:   NS_Free(info.fExtensionArray);
michael@0:   NS_Free(info.fFileName);
michael@0:   NS_Free(info.fFullPath);
michael@0:   NS_Free(info.fVersion);
michael@0: 
michael@0:   return NS_OK;
michael@0: }