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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /uriloader/exthandler/mac/nsOSHelperAppService.mm
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--uriloader/exthandler/mac/nsOSHelperAppService.mm589
1 files changed, 589 insertions, 0 deletions
diff --git a/uriloader/exthandler/mac/nsOSHelperAppService.mm b/uriloader/exthandler/mac/nsOSHelperAppService.mm
new file mode 100644
index 0000000000..3de5c1871b
--- /dev/null
+++ b/uriloader/exthandler/mac/nsOSHelperAppService.mm
@@ -0,0 +1,589 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include "mozilla/net/NeckoCommon.h"
+#include "mozilla/StaticPrefs_browser.h"
+#include "nsComponentManagerUtils.h"
+#include "nsOSHelperAppService.h"
+#include "nsObjCExceptions.h"
+#include "nsISupports.h"
+#include "nsString.h"
+#include "nsTArray.h"
+#include "nsIFile.h"
+#include "nsILocalFileMac.h"
+#include "nsMimeTypes.h"
+#include "nsCRT.h"
+#include "nsMIMEInfoMac.h"
+#include "nsEmbedCID.h"
+
+#import <CoreFoundation/CoreFoundation.h>
+#import <ApplicationServices/ApplicationServices.h>
+
+// chrome URL's
+#define HELPERAPPLAUNCHER_BUNDLE_URL "chrome://global/locale/helperAppLauncher.properties"
+#define BRAND_BUNDLE_URL "chrome://branding/locale/brand.properties"
+
+nsresult GetDefaultBundleURL(const nsACString& aScheme, CFURLRef* aBundleURL) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ nsresult rv = NS_ERROR_NOT_AVAILABLE;
+
+ CFStringRef schemeCFString = ::CFStringCreateWithBytes(
+ kCFAllocatorDefault, (const UInt8*)PromiseFlatCString(aScheme).get(), aScheme.Length(),
+ kCFStringEncodingUTF8, false);
+
+ if (schemeCFString) {
+ CFStringRef lookupCFString =
+ ::CFStringCreateWithFormat(NULL, NULL, CFSTR("%@:"), schemeCFString);
+
+ if (lookupCFString) {
+ CFURLRef lookupCFURL = ::CFURLCreateWithString(NULL, lookupCFString, NULL);
+
+ if (lookupCFURL) {
+ if (@available(macOS 10.10, *)) {
+ *aBundleURL = ::LSCopyDefaultApplicationURLForURL(lookupCFURL, kLSRolesAll, NULL);
+ if (*aBundleURL) {
+ rv = NS_OK;
+ }
+ } else {
+ OSStatus theErr = ::LSGetApplicationForURL(lookupCFURL, kLSRolesAll, NULL, aBundleURL);
+ if (theErr == noErr && *aBundleURL) {
+ rv = NS_OK;
+ }
+ }
+
+ ::CFRelease(lookupCFURL);
+ }
+
+ ::CFRelease(lookupCFString);
+ }
+
+ ::CFRelease(schemeCFString);
+ }
+
+ return rv;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+using mozilla::LogLevel;
+
+/* This is an undocumented interface (in the Foundation framework) that has
+ * been stable since at least 10.2.8 and is still present on SnowLeopard.
+ * Furthermore WebKit has three public methods (in WebKitSystemInterface.h)
+ * that are thin wrappers around this interface's last three methods. So
+ * it's unlikely to change anytime soon. Now that we're no longer using
+ * Internet Config Services, this is the only way to look up a MIME type
+ * from an extension, or vice versa.
+ */
+@class NSURLFileTypeMappingsInternal;
+
+@interface NSURLFileTypeMappings : NSObject {
+ NSURLFileTypeMappingsInternal* _internal;
+}
+
++ (NSURLFileTypeMappings*)sharedMappings;
+- (NSString*)MIMETypeForExtension:(NSString*)aString;
+- (NSString*)preferredExtensionForMIMEType:(NSString*)aString;
+- (NSArray*)extensionsForMIMEType:(NSString*)aString;
+@end
+
+nsOSHelperAppService::~nsOSHelperAppService() {}
+
+nsresult nsOSHelperAppService::OSProtocolHandlerExists(const char* aProtocolScheme,
+ bool* aHandlerExists) {
+ // CFStringCreateWithBytes() can fail even if we're not out of memory --
+ // for example if the 'bytes' parameter is something very weird (like
+ // "\xFF\xFF~"), or possibly if it can't be interpreted as using what's
+ // specified in the 'encoding' parameter. See bug 548719.
+ CFStringRef schemeString =
+ ::CFStringCreateWithBytes(kCFAllocatorDefault, (const UInt8*)aProtocolScheme,
+ strlen(aProtocolScheme), kCFStringEncodingUTF8, false);
+ if (schemeString) {
+ // LSCopyDefaultHandlerForURLScheme() can fail to find the default handler
+ // for aProtocolScheme when it's never been explicitly set (using
+ // LSSetDefaultHandlerForURLScheme()). For example, Safari is the default
+ // handler for the "http" scheme on a newly installed copy of OS X. But
+ // this (presumably) wasn't done using LSSetDefaultHandlerForURLScheme(),
+ // so LSCopyDefaultHandlerForURLScheme() will fail to find Safari. To get
+ // around this we use LSCopyAllHandlersForURLScheme() instead -- which seems
+ // never to fail.
+ // http://lists.apple.com/archives/Carbon-dev/2007/May/msg00349.html
+ // http://www.realsoftware.com/listarchives/realbasic-nug/2008-02/msg00119.html
+ CFArrayRef handlerArray = ::LSCopyAllHandlersForURLScheme(schemeString);
+ *aHandlerExists = !!handlerArray;
+ if (handlerArray) ::CFRelease(handlerArray);
+ ::CFRelease(schemeString);
+ } else {
+ *aHandlerExists = false;
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP nsOSHelperAppService::GetApplicationDescription(const nsACString& aScheme,
+ nsAString& _retval) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ nsresult rv = NS_ERROR_NOT_AVAILABLE;
+
+ CFURLRef handlerBundleURL;
+ rv = GetDefaultBundleURL(aScheme, &handlerBundleURL);
+
+ if (NS_SUCCEEDED(rv) && handlerBundleURL) {
+ CFBundleRef handlerBundle = CFBundleCreate(NULL, handlerBundleURL);
+ if (!handlerBundle) {
+ ::CFRelease(handlerBundleURL);
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+
+ // Get the human-readable name of the bundle
+ CFStringRef bundleName =
+ (CFStringRef)::CFBundleGetValueForInfoDictionaryKey(handlerBundle, kCFBundleNameKey);
+
+ if (bundleName) {
+ AutoTArray<UniChar, 255> buffer;
+ CFIndex bundleNameLength = ::CFStringGetLength(bundleName);
+ buffer.SetLength(bundleNameLength);
+ ::CFStringGetCharacters(bundleName, CFRangeMake(0, bundleNameLength), buffer.Elements());
+ _retval.Assign(reinterpret_cast<char16_t*>(buffer.Elements()), bundleNameLength);
+ rv = NS_OK;
+ }
+ ::CFRelease(handlerBundle);
+ ::CFRelease(handlerBundleURL);
+ }
+
+ return rv;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+NS_IMETHODIMP nsOSHelperAppService::IsCurrentAppOSDefaultForProtocol(const nsACString& aScheme,
+ bool* _retval) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ nsresult rv = NS_ERROR_NOT_AVAILABLE;
+
+ CFURLRef handlerBundleURL;
+ rv = GetDefaultBundleURL(aScheme, &handlerBundleURL);
+ if (NS_SUCCEEDED(rv) && handlerBundleURL) {
+ // Ensure we don't accidentally return success if we can't get an app bundle.
+ rv = NS_ERROR_NOT_AVAILABLE;
+ CFBundleRef appBundle = ::CFBundleGetMainBundle();
+ if (appBundle) {
+ CFURLRef selfURL = ::CFBundleCopyBundleURL(appBundle);
+ *_retval = ::CFEqual(selfURL, handlerBundleURL);
+ rv = NS_OK;
+ ::CFRelease(selfURL);
+ }
+ ::CFRelease(handlerBundleURL);
+ }
+
+ return rv;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+nsresult nsOSHelperAppService::GetFileTokenForPath(const char16_t* aPlatformAppPath,
+ nsIFile** aFile) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+
+ nsresult rv;
+ nsCOMPtr<nsILocalFileMac> localFile(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ CFURLRef pathAsCFURL;
+ CFStringRef pathAsCFString = ::CFStringCreateWithCharacters(
+ NULL, reinterpret_cast<const UniChar*>(aPlatformAppPath), NS_strlen(aPlatformAppPath));
+ if (!pathAsCFString) return NS_ERROR_OUT_OF_MEMORY;
+
+ if (::CFStringGetCharacterAtIndex(pathAsCFString, 0) == '/') {
+ // we have a Posix path
+ pathAsCFURL =
+ ::CFURLCreateWithFileSystemPath(nullptr, pathAsCFString, kCFURLPOSIXPathStyle, false);
+ if (!pathAsCFURL) {
+ ::CFRelease(pathAsCFString);
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ } else {
+ // if it doesn't start with a / it's not an absolute Posix path
+ // let's check if it's a HFS path left over from old preferences
+
+ // If it starts with a ':' char, it's not an absolute HFS path
+ // so bail for that, and also if it's empty
+ if (::CFStringGetLength(pathAsCFString) == 0 ||
+ ::CFStringGetCharacterAtIndex(pathAsCFString, 0) == ':') {
+ ::CFRelease(pathAsCFString);
+ return NS_ERROR_FILE_UNRECOGNIZED_PATH;
+ }
+
+ pathAsCFURL =
+ ::CFURLCreateWithFileSystemPath(nullptr, pathAsCFString, kCFURLHFSPathStyle, false);
+ if (!pathAsCFURL) {
+ ::CFRelease(pathAsCFString);
+ return NS_ERROR_OUT_OF_MEMORY;
+ }
+ }
+
+ rv = localFile->InitWithCFURL(pathAsCFURL);
+ ::CFRelease(pathAsCFString);
+ ::CFRelease(pathAsCFURL);
+ if (NS_FAILED(rv)) return rv;
+ *aFile = localFile;
+ NS_IF_ADDREF(*aFile);
+
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+// Returns the MIME types an application bundle explicitly claims to handle.
+// Returns NULL if aAppRef doesn't explicitly claim to handle any MIME types.
+// If the return value is non-NULL, the caller is responsible for freeing it.
+// This isn't necessarily the same as the MIME types the application bundle
+// is registered to handle in the Launch Services database. (For example
+// the Preview application is normally registered to handle the application/pdf
+// MIME type, even though it doesn't explicitly claim to handle *any* MIME
+// types in its Info.plist. This is probably because Preview does explicitly
+// claim to handle the com.adobe.pdf UTI, and Launch Services somehow
+// translates this into a claim to support the application/pdf MIME type.
+// Launch Services doesn't provide any APIs (documented or undocumented) to
+// query which MIME types a given application is registered to handle. So any
+// app that wants this information (e.g. the Default Apps pref pane) needs to
+// iterate through the entire Launch Services database -- a process which can
+// take several seconds.)
+static CFArrayRef GetMIMETypesHandledByApp(FSRef* aAppRef) {
+ CFURLRef appURL = ::CFURLCreateFromFSRef(kCFAllocatorDefault, aAppRef);
+ if (!appURL) {
+ return NULL;
+ }
+ CFDictionaryRef infoDict = ::CFBundleCopyInfoDictionaryForURL(appURL);
+ ::CFRelease(appURL);
+ if (!infoDict) {
+ return NULL;
+ }
+ CFTypeRef cfObject = ::CFDictionaryGetValue(infoDict, CFSTR("CFBundleDocumentTypes"));
+ if (!cfObject || (::CFGetTypeID(cfObject) != ::CFArrayGetTypeID())) {
+ ::CFRelease(infoDict);
+ return NULL;
+ }
+
+ CFArrayRef docTypes = static_cast<CFArrayRef>(cfObject);
+ CFIndex docTypesCount = ::CFArrayGetCount(docTypes);
+ if (docTypesCount == 0) {
+ ::CFRelease(infoDict);
+ return NULL;
+ }
+
+ CFMutableArrayRef mimeTypes =
+ ::CFArrayCreateMutable(kCFAllocatorDefault, 0, &kCFTypeArrayCallBacks);
+ for (CFIndex i = 0; i < docTypesCount; ++i) {
+ cfObject = ::CFArrayGetValueAtIndex(docTypes, i);
+ if (!cfObject || (::CFGetTypeID(cfObject) != ::CFDictionaryGetTypeID())) {
+ continue;
+ }
+ CFDictionaryRef typeDict = static_cast<CFDictionaryRef>(cfObject);
+
+ // When this key is present (on OS X 10.5 and later), its contents
+ // take precedence over CFBundleTypeMIMETypes (and CFBundleTypeExtensions
+ // and CFBundleTypeOSTypes).
+ cfObject = ::CFDictionaryGetValue(typeDict, CFSTR("LSItemContentTypes"));
+ if (cfObject && (::CFGetTypeID(cfObject) == ::CFArrayGetTypeID())) {
+ continue;
+ }
+
+ cfObject = ::CFDictionaryGetValue(typeDict, CFSTR("CFBundleTypeMIMETypes"));
+ if (!cfObject || (::CFGetTypeID(cfObject) != ::CFArrayGetTypeID())) {
+ continue;
+ }
+ CFArrayRef mimeTypeHolder = static_cast<CFArrayRef>(cfObject);
+ CFArrayAppendArray(mimeTypes, mimeTypeHolder,
+ ::CFRangeMake(0, ::CFArrayGetCount(mimeTypeHolder)));
+ }
+
+ ::CFRelease(infoDict);
+ if (!::CFArrayGetCount(mimeTypes)) {
+ ::CFRelease(mimeTypes);
+ mimeTypes = NULL;
+ }
+ return mimeTypes;
+}
+
+nsresult nsOSHelperAppService::GetMIMEInfoFromOS(const nsACString& aMIMEType,
+ const nsACString& aFileExt, bool* aFound,
+ nsIMIMEInfo** aMIMEInfo) {
+ NS_OBJC_BEGIN_TRY_BLOCK_RETURN;
+ MOZ_ASSERT(XRE_IsParentProcess());
+
+ *aFound = false;
+
+ const nsCString& flatType = PromiseFlatCString(aMIMEType);
+ const nsCString& flatExt = PromiseFlatCString(aFileExt);
+
+ MOZ_LOG(sLog, LogLevel::Debug,
+ ("Mac: HelperAppService lookup for type '%s' ext '%s'\n", flatType.get(), flatExt.get()));
+
+ // Create a Mac-specific MIME info so we can use Mac-specific members.
+ RefPtr<nsMIMEInfoMac> mimeInfoMac = new nsMIMEInfoMac(aMIMEType);
+
+ NSAutoreleasePool* localPool = [[NSAutoreleasePool alloc] init];
+
+ OSStatus err;
+ bool haveAppForType = false;
+ bool haveAppForExt = false;
+ bool typeIsOctetStream = false;
+ bool typeAppIsDefault = false;
+ bool extAppIsDefault = false;
+ FSRef typeAppFSRef;
+ FSRef extAppFSRef;
+
+ CFStringRef cfMIMEType = NULL;
+
+ if (!aMIMEType.IsEmpty()) {
+ typeIsOctetStream = aMIMEType.LowerCaseEqualsLiteral(APPLICATION_OCTET_STREAM);
+ CFURLRef appURL = NULL;
+ // CFStringCreateWithCString() can fail even if we're not out of memory --
+ // for example if the 'cStr' parameter is something very weird (like
+ // "\xFF\xFF~"), or possibly if it can't be interpreted as using what's
+ // specified in the 'encoding' parameter. See bug 548719.
+ cfMIMEType = ::CFStringCreateWithCString(NULL, flatType.get(), kCFStringEncodingUTF8);
+ if (cfMIMEType) {
+ err = ::LSCopyApplicationForMIMEType(cfMIMEType, kLSRolesAll, &appURL);
+ if ((err == noErr) && appURL && ::CFURLGetFSRef(appURL, &typeAppFSRef)) {
+ haveAppForType = true;
+ MOZ_LOG(sLog, LogLevel::Debug,
+ ("LSCopyApplicationForMIMEType found a default application\n"));
+ }
+ if (appURL) {
+ ::CFRelease(appURL);
+ }
+ }
+ }
+ if (!aFileExt.IsEmpty()) {
+ // CFStringCreateWithCString() can fail even if we're not out of memory --
+ // for example if the 'cStr' parameter is something very weird (like
+ // "\xFF\xFF~"), or possibly if it can't be interpreted as using what's
+ // specified in the 'encoding' parameter. See bug 548719.
+ CFStringRef cfExt = ::CFStringCreateWithCString(NULL, flatExt.get(), kCFStringEncodingUTF8);
+ if (cfExt) {
+ err = ::LSGetApplicationForInfo(kLSUnknownType, kLSUnknownCreator, cfExt, kLSRolesAll,
+ &extAppFSRef, nullptr);
+ if (err == noErr) {
+ haveAppForExt = true;
+ MOZ_LOG(sLog, LogLevel::Debug, ("LSGetApplicationForInfo found a default application\n"));
+ }
+ ::CFRelease(cfExt);
+ }
+ }
+
+ if (haveAppForType && haveAppForExt) {
+ // Do aMIMEType and aFileExt match?
+ if (::FSCompareFSRefs((const FSRef*)&typeAppFSRef, (const FSRef*)&extAppFSRef) == noErr) {
+ typeAppIsDefault = true;
+ *aFound = true;
+ }
+ } else if (haveAppForType) {
+ // If aFileExt isn't empty, it doesn't match aMIMEType.
+ if (aFileExt.IsEmpty()) {
+ typeAppIsDefault = true;
+ *aFound = true;
+ }
+ }
+
+ // If we have an app for the extension, and either don't have one for the
+ // type, or the type is application/octet-stream (ie "binary blob"), rely
+ // on the file extension.
+ if ((!haveAppForType || (!*aFound && typeIsOctetStream)) && haveAppForExt) {
+ // If aMIMEType isn't empty, it doesn't match aFileExt, which should mean
+ // that we haven't found a matching app. But make an exception for an app
+ // that also explicitly claims to handle aMIMEType, or which doesn't claim
+ // to handle any MIME types. This helps work around the following Apple
+ // design flaw:
+ //
+ // Launch Services is somewhat unreliable about registering Apple apps to
+ // handle MIME types. Probably this is because Apple has officially
+ // deprecated support for MIME types (in favor of UTIs). As a result,
+ // most of Apple's own apps don't explicitly claim to handle any MIME
+ // types (instead they claim to handle one or more UTIs). So Launch
+ // Services must contain logic to translate support for a given UTI into
+ // support for one or more MIME types, and it doesn't always do this
+ // correctly. For example DiskImageMounter isn't (by default) registered
+ // to handle the application/x-apple-diskimage MIME type. See bug 675356.
+ //
+ // Apple has also deprecated support for file extensions, and Apple apps
+ // also don't register to handle them. But for some reason Launch Services
+ // is (apparently) better about translating support for a given UTI into
+ // support for one or more file extensions. It's not at all clear why.
+ if (aMIMEType.IsEmpty() || typeIsOctetStream) {
+ extAppIsDefault = true;
+ *aFound = true;
+ } else {
+ CFArrayRef extAppMIMETypes = GetMIMETypesHandledByApp(&extAppFSRef);
+ if (extAppMIMETypes) {
+ if (cfMIMEType) {
+ if (::CFArrayContainsValue(extAppMIMETypes,
+ ::CFRangeMake(0, ::CFArrayGetCount(extAppMIMETypes)),
+ cfMIMEType)) {
+ extAppIsDefault = true;
+ *aFound = true;
+ }
+ }
+ ::CFRelease(extAppMIMETypes);
+ } else {
+ extAppIsDefault = true;
+ *aFound = true;
+ }
+ }
+ }
+
+ if (cfMIMEType) {
+ ::CFRelease(cfMIMEType);
+ }
+
+ if (aMIMEType.IsEmpty()) {
+ if (haveAppForExt) {
+ // If aMIMEType is empty and we've found a default app for aFileExt, try
+ // to get the MIME type from aFileExt. (It might also be worth doing
+ // this when aMIMEType isn't empty but haveAppForType is false -- but
+ // the doc for this method says that if we have a MIME type (in
+ // aMIMEType), we need to give it preference.)
+ NSURLFileTypeMappings* map = [NSURLFileTypeMappings sharedMappings];
+ NSString* extStr = [NSString stringWithCString:flatExt.get() encoding:NSASCIIStringEncoding];
+ NSString* typeStr = map ? [map MIMETypeForExtension:extStr] : NULL;
+ if (typeStr) {
+ nsAutoCString mimeType;
+ mimeType.Assign((char*)[typeStr cStringUsingEncoding:NSASCIIStringEncoding]);
+ mimeInfoMac->SetMIMEType(mimeType);
+ haveAppForType = true;
+ } else {
+ // Sometimes the OS won't give us a MIME type for an extension that's
+ // registered with Launch Services and has a default app: For example
+ // Real Player registers itself for the "ogg" extension and for the
+ // audio/x-ogg and application/x-ogg MIME types, but
+ // MIMETypeForExtension returns nil for the "ogg" extension even on
+ // systems where Real Player is installed. This is probably an Apple
+ // bug. But bad things happen if we return an nsIMIMEInfo structure
+ // with an empty MIME type and set *aFound to true. So in this
+ // case we need to set it to false here.
+ haveAppForExt = false;
+ extAppIsDefault = false;
+ *aFound = false;
+ }
+ } else {
+ // Otherwise set the MIME type to a reasonable fallback.
+ mimeInfoMac->SetMIMEType(nsLiteralCString(APPLICATION_OCTET_STREAM));
+ }
+ }
+
+ if (typeAppIsDefault || extAppIsDefault) {
+ if (haveAppForExt) mimeInfoMac->AppendExtension(aFileExt);
+
+ nsresult rv;
+ nsCOMPtr<nsILocalFileMac> app(do_CreateInstance(NS_LOCAL_FILE_CONTRACTID, &rv));
+ if (NS_FAILED(rv)) {
+ [localPool release];
+ return rv;
+ }
+
+ CFStringRef cfAppName = NULL;
+ if (typeAppIsDefault) {
+ app->InitWithFSRef(&typeAppFSRef);
+ ::LSCopyItemAttribute((const FSRef*)&typeAppFSRef, kLSRolesAll, kLSItemDisplayName,
+ (CFTypeRef*)&cfAppName);
+ } else {
+ app->InitWithFSRef(&extAppFSRef);
+ ::LSCopyItemAttribute((const FSRef*)&extAppFSRef, kLSRolesAll, kLSItemDisplayName,
+ (CFTypeRef*)&cfAppName);
+ }
+ if (cfAppName) {
+ AutoTArray<UniChar, 255> buffer;
+ CFIndex appNameLength = ::CFStringGetLength(cfAppName);
+ buffer.SetLength(appNameLength);
+ ::CFStringGetCharacters(cfAppName, CFRangeMake(0, appNameLength), buffer.Elements());
+ nsAutoString appName;
+ appName.Assign(reinterpret_cast<char16_t*>(buffer.Elements()), appNameLength);
+ mimeInfoMac->SetDefaultDescription(appName);
+ ::CFRelease(cfAppName);
+ }
+
+ mimeInfoMac->SetDefaultApplication(app);
+ mimeInfoMac->SetPreferredAction(nsIMIMEInfo::saveToDisk);
+
+ } else {
+ mimeInfoMac->SetPreferredAction(nsIMIMEInfo::saveToDisk);
+ }
+
+ nsAutoCString mimeType;
+ mimeInfoMac->GetMIMEType(mimeType);
+ if (*aFound && !mimeType.IsEmpty()) {
+ // If we have a MIME type, make sure its extension list is included in our
+ // list.
+ NSURLFileTypeMappings* map = [NSURLFileTypeMappings sharedMappings];
+ NSString* typeStr = [NSString stringWithCString:mimeType.get() encoding:NSASCIIStringEncoding];
+ NSArray* extensionsList = map ? [map extensionsForMIMEType:typeStr] : NULL;
+ if (extensionsList) {
+ for (NSString* extension in extensionsList) {
+ nsAutoCString ext;
+ ext.Assign((char*)[extension cStringUsingEncoding:NSASCIIStringEncoding]);
+ mimeInfoMac->AppendExtension(ext);
+ }
+ }
+
+ if (CFStringRef cfType =
+ ::CFStringCreateWithCString(NULL, mimeType.get(), kCFStringEncodingUTF8)) {
+ if (CFStringRef cfTypeDesc = ::UTTypeCopyDescription(cfType)) {
+ AutoTArray<UniChar, 255> buffer;
+ CFIndex typeDescLength = ::CFStringGetLength(cfTypeDesc);
+ buffer.SetLength(typeDescLength);
+ ::CFStringGetCharacters(cfTypeDesc, CFRangeMake(0, typeDescLength), buffer.Elements());
+ nsAutoString typeDesc;
+ typeDesc.Assign(reinterpret_cast<char16_t*>(buffer.Elements()), typeDescLength);
+ mimeInfoMac->SetDescription(typeDesc);
+ ::CFRelease(cfTypeDesc);
+ }
+ ::CFRelease(cfType);
+ }
+ }
+
+ MOZ_LOG(sLog, LogLevel::Debug, ("OS gave us: type '%s' found '%i'\n", mimeType.get(), *aFound));
+
+ [localPool release];
+ mimeInfoMac.forget(aMIMEInfo);
+ return NS_OK;
+
+ NS_OBJC_END_TRY_BLOCK_RETURN(NS_ERROR_FAILURE);
+}
+
+NS_IMETHODIMP
+nsOSHelperAppService::GetProtocolHandlerInfoFromOS(const nsACString& aScheme, bool* found,
+ nsIHandlerInfo** _retval) {
+ NS_ASSERTION(!aScheme.IsEmpty(), "No scheme was specified!");
+
+ nsresult rv = OSProtocolHandlerExists(nsPromiseFlatCString(aScheme).get(), found);
+ if (NS_FAILED(rv)) return rv;
+
+ nsMIMEInfoMac* handlerInfo = new nsMIMEInfoMac(aScheme, nsMIMEInfoBase::eProtocolInfo);
+ NS_ENSURE_TRUE(handlerInfo, NS_ERROR_OUT_OF_MEMORY);
+ NS_ADDREF(*_retval = handlerInfo);
+
+ if (!*found) {
+ // Code that calls this requires an object regardless if the OS has
+ // something for us, so we return the empty object.
+ return NS_OK;
+ }
+
+ // As a workaround for the OS X problem described in bug 1391186, don't
+ // attempt to get/set the application description from the child process.
+ if (!mozilla::net::IsNeckoChild()) {
+ nsAutoString desc;
+ rv = GetApplicationDescription(aScheme, desc);
+ NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "GetApplicationDescription failed");
+ handlerInfo->SetDefaultDescription(desc);
+ }
+
+ return NS_OK;
+}