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CFBundle.c
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/* CFBundle.c
Copyright (c) 1999-2019, Apple Inc. and the Swift project authors
Portions Copyright (c) 2014-2019, Apple Inc. and the Swift project authors
Licensed under Apache License v2.0 with Runtime Library Exception
See http://swift.org/LICENSE.txt for license information
See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
Responsibility: Tony Parker
*/
#include "CoreFoundation.h"
#include "CFBundle_Internal.h"
#include "CFPropertyList.h"
#include "CFNumber.h"
#include "CFSet.h"
#include "CFURLAccess.h"
#include "CFError.h"
#include "CFError_Private.h"
#include <string.h>
#include "CFPriv.h"
#include "CFInternal.h"
#include "CFRuntime_Internal.h"
#include "CFByteOrder.h"
#include "CFBundle_BinaryTypes.h"
#include <ctype.h>
#include <sys/stat.h>
#include <stdlib.h>
#include <assert.h>
#if defined(BINARY_SUPPORT_DYLD)
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <crt_externs.h>
#endif /* BINARY_SUPPORT_DYLD */
#if defined(BINARY_SUPPORT_DLFCN)
#include <dlfcn.h>
#ifndef RTLD_FIRST
#define RTLD_FIRST 0
#endif
#endif /* BINARY_SUPPORT_DLFCN */
#if TARGET_OS_MAC || TARGET_OS_WASI
#include <fcntl.h>
#elif TARGET_OS_WIN32
#include <fcntl.h>
#include <io.h>
#endif
#define LOG_BUNDLE_LOAD 0
// Public CFBundle Info plist keys
CONST_STRING_DECL(kCFBundleInfoDictionaryVersionKey, "CFBundleInfoDictionaryVersion")
CONST_STRING_DECL(kCFBundleExecutableKey, "CFBundleExecutable")
CONST_STRING_DECL(kCFBundleIdentifierKey, "CFBundleIdentifier")
CONST_STRING_DECL(kCFBundleVersionKey, "CFBundleVersion")
CONST_STRING_DECL(kCFBundleDevelopmentRegionKey, "CFBundleDevelopmentRegion")
CONST_STRING_DECL(kCFBundleLocalizationsKey, "CFBundleLocalizations")
// Private CFBundle key, used to mean 'I support the same localizations as CoreFoundation'
CONST_STRING_DECL(_kCFBundleUseAppleLocalizationsKey, "_CFBundleUseAppleLocalizations")
// Private CFBundle Info plist keys, possible candidates for public constants
CONST_STRING_DECL(_kCFBundleAllowMixedLocalizationsKey, "CFBundleAllowMixedLocalizations")
CONST_STRING_DECL(_kCFBundleSupportedPlatformsKey, "CFBundleSupportedPlatforms")
CONST_STRING_DECL(_kCFBundleResourceSpecificationKey, "CFBundleResourceSpecification")
// Finder stuff
CONST_STRING_DECL(_kCFBundlePackageTypeKey, "CFBundlePackageType")
CONST_STRING_DECL(_kCFBundleSignatureKey, "CFBundleSignature")
CONST_STRING_DECL(_kCFBundleIconFileKey, "CFBundleIconFile")
CONST_STRING_DECL(_kCFBundleDocumentTypesKey, "CFBundleDocumentTypes")
CONST_STRING_DECL(_kCFBundleURLTypesKey, "CFBundleURLTypes")
// Keys that are usually localized in InfoPlist.strings
CONST_STRING_DECL(kCFBundleNameKey, "CFBundleName")
CONST_STRING_DECL(_kCFBundleDisplayNameKey, "CFBundleDisplayName")
CONST_STRING_DECL(_kCFBundleShortVersionStringKey, "CFBundleShortVersionString")
CONST_STRING_DECL(_kCFBundleGetInfoStringKey, "CFBundleGetInfoString")
CONST_STRING_DECL(_kCFBundleGetInfoHTMLKey, "CFBundleGetInfoHTML")
// Sub-keys for CFBundleDocumentTypes dictionaries
CONST_STRING_DECL(_kCFBundleTypeNameKey, "CFBundleTypeName")
CONST_STRING_DECL(_kCFBundleTypeRoleKey, "CFBundleTypeRole")
CONST_STRING_DECL(_kCFBundleTypeIconFileKey, "CFBundleTypeIconFile")
CONST_STRING_DECL(_kCFBundleTypeOSTypesKey, "CFBundleTypeOSTypes")
CONST_STRING_DECL(_kCFBundleTypeExtensionsKey, "CFBundleTypeExtensions")
CONST_STRING_DECL(_kCFBundleTypeMIMETypesKey, "CFBundleTypeMIMETypes")
// Sub-keys for CFBundleURLTypes dictionaries
CONST_STRING_DECL(_kCFBundleURLNameKey, "CFBundleURLName")
CONST_STRING_DECL(_kCFBundleURLIconFileKey, "CFBundleURLIconFile")
CONST_STRING_DECL(_kCFBundleURLSchemesKey, "CFBundleURLSchemes")
// Compatibility key names
CONST_STRING_DECL(_kCFBundleOldExecutableKey, "NSExecutable")
CONST_STRING_DECL(_kCFBundleOldInfoDictionaryVersionKey, "NSInfoPlistVersion")
CONST_STRING_DECL(_kCFBundleOldNameKey, "NSHumanReadableName")
CONST_STRING_DECL(_kCFBundleOldIconFileKey, "NSIcon")
CONST_STRING_DECL(_kCFBundleOldDocumentTypesKey, "NSTypes")
CONST_STRING_DECL(_kCFBundleOldShortVersionStringKey, "NSAppVersion")
// Compatibility CFBundleDocumentTypes key names
CONST_STRING_DECL(_kCFBundleOldTypeNameKey, "NSName")
CONST_STRING_DECL(_kCFBundleOldTypeRoleKey, "NSRole")
CONST_STRING_DECL(_kCFBundleOldTypeIconFileKey, "NSIcon")
CONST_STRING_DECL(_kCFBundleOldTypeExtensions1Key, "NSUnixExtensions")
CONST_STRING_DECL(_kCFBundleOldTypeExtensions2Key, "NSDOSExtensions")
CONST_STRING_DECL(_kCFBundleOldTypeOSTypesKey, "NSMacOSType")
// Internally used keys for loaded Info plists.
CONST_STRING_DECL(_kCFBundleInfoPlistURLKey, "CFBundleInfoPlistURL")
CONST_STRING_DECL(_kCFBundleRawInfoPlistURLKey, "CFBundleRawInfoPlistURL")
CONST_STRING_DECL(_kCFBundleNumericVersionKey, "CFBundleNumericVersion")
CONST_STRING_DECL(_kCFBundleExecutablePathKey, "CFBundleExecutablePath")
CONST_STRING_DECL(_kCFBundleResourcesFileMappedKey, "CSResourcesFileMapped")
CONST_STRING_DECL(_kCFBundleCFMLoadAsBundleKey, "CFBundleCFMLoadAsBundle")
// Keys used by NSBundle for loaded Info plists.
CONST_STRING_DECL(_kCFBundlePrincipalClassKey, "NSPrincipalClass")
static _CFMutex CFBundleGlobalDataLock = _CF_MUTEX_STATIC_INITIALIZER;
static CFMutableDictionaryRef _bundlesByIdentifier = NULL;
static CFMutableDictionaryRef _bundlesByURL = NULL;
static CFMutableArrayRef _allBundles = NULL;
static CFBundleRef _CFBundleCreate(CFAllocatorRef allocator, CFURLRef bundleURL, Boolean doFinalProcessing, Boolean unique, Boolean addToTables);
static void _CFBundleEnsureBundlesUpToDateWithHint(CFStringRef hint);
static void _CFBundleEnsureAllBundlesUpToDate(void);
static void _CFBundleEnsureBundleExistsForImagePath(CFStringRef imagePath, Boolean permissive);
static void _CFBundleEnsureBundlesExistForImagePaths(CFArrayRef imagePaths);
#pragma mark -
#if !DEPLOYMENT_RUNTIME_OBJC && !TARGET_OS_WIN32 && !TARGET_OS_ANDROID
// Functions and constants for FHS bundles:
#define _CFBundleFHSDirectory_share CFSTR("share")
static bool _CFBundleURLIsForFHSInstalledBundle(CFURLRef bundleURL) {
// Paths of this form are FHS installed bundles:
// <anywhere>/share/<name>.resources
CFStringRef extension = CFURLCopyPathExtension(bundleURL);
CFURLRef parentURL = CFURLCreateCopyDeletingLastPathComponent(kCFAllocatorSystemDefault, bundleURL);
CFStringRef containingDirectoryName = parentURL ? CFURLCopyLastPathComponent(parentURL) : NULL;
bool isFHSBundle =
extension &&
containingDirectoryName &&
CFEqual(extension, _CFBundleSiblingResourceDirectoryExtension) &&
CFEqual(containingDirectoryName, _CFBundleFHSDirectory_share);
if (extension) CFRelease(extension);
if (parentURL) CFRelease(parentURL);
if (containingDirectoryName) CFRelease(containingDirectoryName);
return isFHSBundle;
}
#endif // !DEPLOYMENT_RUNTIME_OBJC && !TARGET_OS_WIN32 && !TARGET_OS_ANDROID
CF_CROSS_PLATFORM_EXPORT bool _CFBundleSupportsFHSBundles() {
#if !DEPLOYMENT_RUNTIME_OBJC && !TARGET_OS_WIN32 && !TARGET_OS_ANDROID
return true;
#else
return false;
#endif
}
CF_CROSS_PLATFORM_EXPORT bool _CFBundleSupportsFreestandingBundles() {
#if !DEPLOYMENT_RUNTIME_OBJC
return true;
#else
return false;
#endif
}
#pragma mark -
CF_PRIVATE os_log_t _CFBundleResourceLogger(void) {
static os_log_t _log;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_log = os_log_create("com.apple.CFBundle", "resources");
});
return _log;
}
CF_PRIVATE os_log_t _CFBundleLocalizedStringLogger(void) {
static os_log_t _log;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_log = os_log_create("com.apple.CFBundle", "strings");
});
return _log;
}
CF_PRIVATE os_log_t _CFBundleLoadingLogger(void) {
static os_log_t _log;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_log = os_log_create("com.apple.CFBundle", "loading");
});
return _log;
}
#pragma mark -
#if TARGET_OS_OSX
// Some apps may rely on the fact that CFBundle used to allow bundle objects to be deallocated (despite handing out unretained pointers via CFBundleGetBundleWithIdentifier or CFBundleGetAllBundles). To remain compatible even in the face of unsafe behavior, we can optionally use unsafe-unretained memory management for holding on to bundles.
static Boolean _useUnsafeUnretainedTables(void) {
return false;
}
#endif
#pragma mark -
#pragma mark Utilities
// Create an absolute URL after creating a URL with the supplied URLString, baseURL.
// This is used to resolve symbolic links in the path (For example, for wrapped bundles)
CF_PRIVATE CFURLRef _CFURLCreateResolvedDirectoryWithString(CFAllocatorRef allocator, CFStringRef URLString, CFURLRef baseURL) {
CFURLRef relativeURL = CFURLCreateWithString(allocator, URLString, baseURL);
CFURLRef absoluteURL = CFURLCopyAbsoluteURL(relativeURL);
CFRelease(relativeURL);
CFStringRef absolutePath = CFURLCopyFileSystemPath(absoluteURL, PLATFORM_PATH_STYLE);
CFRelease(absoluteURL);
char absolutePathCString[PATH_MAX];
Boolean success = CFStringGetFileSystemRepresentation(absolutePath, absolutePathCString, PATH_MAX);
CFRelease(absolutePath);
if (success) {
int fd = open(absolutePathCString, O_RDONLY);
if (fd > 0) {
char resolvedPathCString[PATH_MAX];
if (_CFGetPathFromFileDescriptor(fd, resolvedPathCString)) {
os_log_error(_CFBundleResourceLogger(), "Unable to resolve directory (%d)", errno);
close(fd);
} else {
close(fd);
CFStringRef resolvedPath = CFStringCreateWithFileSystemRepresentation(allocator, resolvedPathCString);
CFURLRef result = CFURLCreateWithFileSystemPath(allocator, resolvedPath, PLATFORM_PATH_STYLE, true);
CFRelease(resolvedPath);
return result;
}
}
}
return NULL;
}
#pragma mark -
#pragma mark Bundle Tables
static void _CFBundleAddToTablesLocked(CFBundleRef bundle, CFStringRef bundleID) {
if (bundle->_isUnique) return;
// Add to the _allBundles list
if (!_allBundles) {
CFArrayCallBacks callbacks = kCFTypeArrayCallBacks;
#if TARGET_OS_OSX
if (_useUnsafeUnretainedTables()) {
callbacks.retain = NULL;
callbacks.release = NULL;
}
#endif
// The _allBundles array holds a strong reference on the bundle.
// It does this to prevent a race on bundle deallocation / creation. See: <rdar://problem/6606482> CFBundle isn't thread-safe in RR mode
// Also, the existence of the CFBundleGetBundleWithIdentifier / CFBundleGetAllBundles API means that any bundle we hand out from there must be permanently retained, or callers will potentially have an object that can be deallocated out from underneath them.
_allBundles = CFArrayCreateMutable(kCFAllocatorSystemDefault, 0, &callbacks);
}
CFArrayAppendValue(_allBundles, bundle);
// Add to the table that maps urls to bundles
if (!_bundlesByURL) {
CFDictionaryValueCallBacks nonRetainingDictionaryValueCallbacks = kCFTypeDictionaryValueCallBacks;
nonRetainingDictionaryValueCallbacks.retain = NULL;
nonRetainingDictionaryValueCallbacks.release = NULL;
_bundlesByURL = CFDictionaryCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeDictionaryKeyCallBacks, &nonRetainingDictionaryValueCallbacks);
}
CFDictionarySetValue(_bundlesByURL, bundle->_url, bundle);
// Add to the table that maps identifiers to bundles
if (bundleID) {
CFMutableArrayRef bundlesWithThisID = NULL;
CFBundleRef existingBundle = NULL;
if (!_bundlesByIdentifier) {
_bundlesByIdentifier = CFDictionaryCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
}
bundlesWithThisID = (CFMutableArrayRef)CFDictionaryGetValue(_bundlesByIdentifier, bundleID);
if (bundlesWithThisID) {
CFIndex i, count = CFArrayGetCount(bundlesWithThisID);
UInt32 existingVersion, newVersion = CFBundleGetVersionNumber(bundle);
for (i = 0; i < count; i++) {
existingBundle = (CFBundleRef)CFArrayGetValueAtIndex(bundlesWithThisID, i);
existingVersion = CFBundleGetVersionNumber(existingBundle);
// If you load two bundles with the same identifier and the same version, the last one wins.
if (newVersion >= existingVersion) break;
}
CFArrayInsertValueAtIndex(bundlesWithThisID, i, bundle);
// We've encountered a bundle with this ID already.
// Output some additional info here. It may not be an error (adding a newer version of a bundle is supported), so use os_log_debug.
if (os_log_debug_enabled(_CFBundleResourceLogger())) {
CFMutableArrayRef bundleList = CFArrayCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeArrayCallBacks);
for (CFIndex i = 0; i < CFArrayGetCount(bundlesWithThisID); i++) {
CFBundleRef bundle = (CFBundleRef)CFArrayGetValueAtIndex(bundlesWithThisID, i);
CFStringRef desc = CFStringCreateWithFormat(kCFAllocatorSystemDefault, NULL, CFSTR("Bundle %p at %@"), bundle, bundle->_url);
CFArrayAppendValue(bundleList, desc);
CFRelease(desc);
}
os_log_debug(_CFBundleResourceLogger(), "More than one bundle with the same identifier has been added: %{public}@", bundleList);
CFRelease(bundleList);
}
} else {
CFArrayCallBacks nonRetainingArrayCallbacks = kCFTypeArrayCallBacks;
nonRetainingArrayCallbacks.retain = NULL;
nonRetainingArrayCallbacks.release = NULL;
bundlesWithThisID = CFArrayCreateMutable(kCFAllocatorSystemDefault, 0, &nonRetainingArrayCallbacks);
CFArrayAppendValue(bundlesWithThisID, bundle);
CFDictionarySetValue(_bundlesByIdentifier, bundleID, bundlesWithThisID);
CFRelease(bundlesWithThisID);
}
}
}
static void _CFBundleRemoveFromTables(CFBundleRef bundle, CFURLRef bundleURL, CFStringRef bundleID) {
// Since we no longer allow bundles to be removed from tables, this method does nothing. Modifying the tables during deallocation is risky because if the caller has over-released the bundle object then we will deadlock on the global lock.
#if TARGET_OS_OSX
if (_useUnsafeUnretainedTables()) {
// Except for special cases of unsafe-unretained, where we must clean up the table or risk handing out a zombie object. There may still be outstanding pointers to these bundes (e.g. the result of CFBundleGetBundleWithIdentifier) but there is nothing we can do about that after this point.
// Unique bundles aren't in the tables anyway
if (bundle->_isUnique) return;
_CFMutexLock(&CFBundleGlobalDataLock);
// Remove from the table of all bundles
if (_allBundles) {
CFIndex i = CFArrayGetFirstIndexOfValue(_allBundles, CFRangeMake(0, CFArrayGetCount(_allBundles)), bundle);
if (i >= 0) CFArrayRemoveValueAtIndex(_allBundles, i);
}
// Remove from the table that maps urls to bundles
if (bundleURL && _bundlesByURL) {
CFBundleRef bundleForURL = (CFBundleRef)CFDictionaryGetValue(_bundlesByURL, bundleURL);
if (bundleForURL == bundle) CFDictionaryRemoveValue(_bundlesByURL, bundleURL);
}
// Remove from the table that maps identifiers to bundles
if (bundleID && _bundlesByIdentifier) {
CFMutableArrayRef bundlesWithThisID = (CFMutableArrayRef)CFDictionaryGetValue(_bundlesByIdentifier, bundleID);
if (bundlesWithThisID) {
CFIndex count = CFArrayGetCount(bundlesWithThisID);
while (count-- > 0) if (bundle == (CFBundleRef)CFArrayGetValueAtIndex(bundlesWithThisID, count)) CFArrayRemoveValueAtIndex(bundlesWithThisID, count);
if (0 == CFArrayGetCount(bundlesWithThisID)) CFDictionaryRemoveValue(_bundlesByIdentifier, bundleID);
}
}
_CFMutexUnlock(&CFBundleGlobalDataLock);
}
#endif
}
static CFBundleRef _CFBundleGetFromTablesLocked(CFStringRef bundleID) {
CFBundleRef result = NULL, bundle;
if (_bundlesByIdentifier && bundleID) {
// Note that this array is maintained in descending order by version number
CFArrayRef bundlesWithThisID = (CFArrayRef)CFDictionaryGetValue(_bundlesByIdentifier, bundleID);
if (bundlesWithThisID) {
CFIndex i, count = CFArrayGetCount(bundlesWithThisID);
if (count > 0) {
// First check for loaded bundles so we will always prefer a loaded to an unloaded bundle
for (i = 0; !result && i < count; i++) {
bundle = (CFBundleRef)CFArrayGetValueAtIndex(bundlesWithThisID, i);
if (CFBundleIsExecutableLoaded(bundle)) result = bundle;
}
// If no loaded bundle, simply take the first item in the array, i.e. the one with the latest version number
if (!result) result = (CFBundleRef)CFArrayGetValueAtIndex(bundlesWithThisID, 0);
}
}
}
return result;
}
static CFBundleRef _CFBundleGetFromTables(CFStringRef bundleID) {
_CFMutexLock(&CFBundleGlobalDataLock);
CFBundleRef result = _CFBundleGetFromTablesLocked(bundleID);
_CFMutexUnlock(&CFBundleGlobalDataLock);
return result;
}
static CFBundleRef _CFBundleCopyFromTablesForURLLocked(CFURLRef url) {
/*
If you're curious why this doesn't consult the main bundle URL, consider the case where you have a directory structure like this:
/S/L/F/Foo.framework/Foo
/S/L/F/Foo.framework/food (a daemon for the Foo framework)
And the main executable is 'food'.
This flat structure can happen on iOS, with its more common version 3 bundles. In this scenario, there are theoretically two different bundles that could be returned: one for the framework, one for the daemon. They have the same URL but different bundle identifiers.
Since the main bundle is not part of the bundle tables, we can support this scenario by having the _bundlesByURL data structure hold the bundle for URL "/S/L/F/Foo.framework/Foo" and _mainBundle (in CFBundle_Main.c) hold the bundle for URL "/S/L/F/Foo.framework/food".
*/
CFBundleRef result = NULL;
if (_bundlesByURL) result = (CFBundleRef)CFDictionaryGetValue(_bundlesByURL, url);
if (result && !result->_url) {
result = NULL;
CFDictionaryRemoveValue(_bundlesByURL, url);
}
if (result) CFRetain(result);
return result;
}
static CFBundleRef _CFBundleCopyFromTablesForURL(CFURLRef url) {
_CFMutexLock(&CFBundleGlobalDataLock);
CFBundleRef result = _CFBundleCopyFromTablesForURLLocked(url);
_CFMutexUnlock(&CFBundleGlobalDataLock);
return result;
}
#pragma mark -
CF_PRIVATE _CFBundleVersion _CFBundleEffectiveLayoutVersion(CFBundleRef bundle) {
_CFBundleVersion localVersion = bundle->_version;
// exclude type 0 bundles with no binary (or CFM binary) and no Info.plist, since they give too many false positives
if (_CFBundleVersionOldStyleResources == localVersion) {
CFDictionaryRef infoDict = CFBundleGetInfoDictionary(bundle);
if (!infoDict || 0 == CFDictionaryGetCount(infoDict)) {
#if defined(BINARY_SUPPORT_DYLD)
CFURLRef executableURL = CFBundleCopyExecutableURL(bundle);
if (executableURL) {
if (bundle->_binaryType == __CFBundleUnknownBinary) bundle->_binaryType = _CFBundleGrokBinaryType(executableURL);
if (bundle->_binaryType == __CFBundleCFMBinary || bundle->_binaryType == __CFBundleUnreadableBinary) {
localVersion = _CFBundleVersionNotABundle;
} else {
bundle->_resourceData._executableLacksResourceFork = true;
}
CFRelease(executableURL);
} else {
localVersion = _CFBundleVersionNotABundle;
}
#else
CFURLRef executableURL = CFBundleCopyExecutableURL(bundle);
if (executableURL) {
CFRelease(executableURL);
} else {
localVersion = _CFBundleVersionNotABundle;
}
#endif /* BINARY_SUPPORT_DYLD */
}
}
return localVersion;
}
CFBundleRef _CFBundleCreateIfLooksLikeBundle(CFAllocatorRef allocator, CFURLRef url) {
// It is assumed that users of this SPI do not want this bundle to persist forever.
CFBundleRef bundle = _CFBundleCreateUnique(allocator, url);
if (bundle) {
_CFBundleVersion localVersion = _CFBundleEffectiveLayoutVersion(bundle);
if (_CFBundleVersionFlat == localVersion || _CFBundleVersionNotABundle == localVersion) {
CFRelease(bundle);
bundle = NULL;
}
}
return bundle;
}
CF_EXPORT Boolean _CFBundleURLLooksLikeBundle(CFURLRef url) {
Boolean result = false;
CFBundleRef bundle = _CFBundleCreateIfLooksLikeBundle(kCFAllocatorSystemDefault, url);
if (bundle) {
result = true;
CFRelease(bundle);
}
return result;
}
CFBundleRef _CFBundleGetMainBundleIfLooksLikeBundle(void) {
CFBundleRef mainBundle = CFBundleGetMainBundle();
if (mainBundle && (_CFBundleVersionFlat == mainBundle->_version || _CFBundleVersionNotABundle == mainBundle->_version)) mainBundle = NULL;
return mainBundle;
}
Boolean _CFBundleMainBundleInfoDictionaryComesFromResourceFork(void) {
CFBundleRef mainBundle = CFBundleGetMainBundle();
return (mainBundle && mainBundle->_resourceData._infoDictionaryFromResourceFork);
}
CF_EXPORT CFBundleRef _CFBundleCreateIfMightBeBundle(CFAllocatorRef allocator, CFURLRef url) {
// This function is obsolete
CFBundleRef bundle = CFBundleCreate(allocator, url);
return bundle;
}
CF_EXPORT void _CFBundleFlushBundleCaches(CFBundleRef bundle) {
__CFLock(&bundle->_lock);
CFDictionaryRef oldInfoDict = bundle->_infoDict;
CFTypeRef val;
bundle->_infoDict = NULL;
if (bundle->_localInfoDict) {
CFRelease(bundle->_localInfoDict);
bundle->_localInfoDict = NULL;
}
if (bundle->_infoPlistUrl) {
CFRelease(bundle->_infoPlistUrl);
bundle->_infoPlistUrl = NULL;
}
if (bundle->_developmentRegion) {
CFRelease(bundle->_developmentRegion);
bundle->_developmentRegion = NULL;
}
if (bundle->_executablePath) {
CFRelease(bundle->_executablePath);
bundle->_executablePath = NULL;
}
if (bundle->_searchLanguages) {
CFRelease(bundle->_searchLanguages);
bundle->_searchLanguages = NULL;
}
if (bundle->_stringTable) {
CFRelease(bundle->_stringTable);
bundle->_stringTable = NULL;
}
_CFBundleRefreshInfoDictionaryAlreadyLocked(bundle);
if (oldInfoDict) {
if (!bundle->_infoDict) bundle->_infoDict = CFDictionaryCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
val = CFDictionaryGetValue(oldInfoDict, _kCFBundlePrincipalClassKey);
if (val) CFDictionarySetValue((CFMutableDictionaryRef)bundle->_infoDict, _kCFBundlePrincipalClassKey, val);
CFRelease(oldInfoDict);
}
_CFBundleFlushQueryTableCache(bundle);
__CFUnlock(&bundle->_lock);
}
static CFBundleRef _CFBundleGetBundleWithIdentifier(CFStringRef bundleID, void *frameworkHint) {
CFBundleRef result = NULL;
if (bundleID) {
CFBundleRef main = CFBundleGetMainBundle();
if (main) {
CFDictionaryRef infoDict = CFBundleGetInfoDictionary(main);
if (infoDict) {
CFStringRef mainBundleID = CFDictionaryGetValue(infoDict, kCFBundleIdentifierKey);
if (mainBundleID && CFGetTypeID(mainBundleID) == CFStringGetTypeID() && CFEqual(mainBundleID, bundleID)) {
return main;
}
}
}
result = _CFBundleGetFromTables(bundleID);
#if TARGET_OS_MAC
if (!result) {
// Try to create the bundle for the caller and try again
if (frameworkHint) {
CFStringRef imagePath = _CFBundleCopyLoadedImagePathForPointer(frameworkHint);
if (imagePath) {
// As this is a fast-path check, we don't want to be aggressive about assuming that the executable URL that we may have received from DYLD via _CFBundleCopyLoadedImagePathForPointer should be turned into a framework URL. If we do, then it is possible that an executable located inside a framework bundle which does not normally link that framework will cause us to load it unintentionally (31165928).
// For example:
// Foo.framework/
// Resources/
// HelperTool
//
// With permissive set to 'true', this would make the 'Foo.framework' bundle exist, but there is no reason why HelperTool is required to have loaded Foo.framework.
_CFBundleEnsureBundleExistsForImagePath(imagePath, false);
CFRelease(imagePath);
}
// Now try again
result = _CFBundleGetFromTables(bundleID);
}
}
#endif
if (!result) {
// Try to guess the bundle from the identifier and try again
_CFBundleEnsureBundlesUpToDateWithHint(bundleID);
// Now try again
result = _CFBundleGetFromTables(bundleID);
}
}
if (!result) {
// Make sure all bundles have been created and try again.
_CFBundleEnsureAllBundlesUpToDate();
// Now try again
result = _CFBundleGetFromTables(bundleID);
}
return result;
}
CFBundleRef CFBundleGetBundleWithIdentifier(CFStringRef bundleID) {
// Use the frame that called this as a hint
void *hint;
#if TARGET_OS_WASI
hint = NULL;
#else
hint = __builtin_frame_address(0);
#endif
return _CFBundleGetBundleWithIdentifier(bundleID, hint);
}
CFBundleRef _CFBundleGetBundleWithIdentifierWithHint(CFStringRef bundleID, void *pointer) {
return _CFBundleGetBundleWithIdentifier(bundleID, pointer);
}
static CFStringRef __CFBundleCopyDescription(CFTypeRef cf) {
char buff[CFMaxPathSize];
CFStringRef path = NULL, binaryType = NULL, retval = NULL;
if (((CFBundleRef)cf)->_url && CFURLGetFileSystemRepresentation(((CFBundleRef)cf)->_url, true, (uint8_t *)buff, CFMaxPathSize)) path = CFStringCreateWithFileSystemRepresentation(kCFAllocatorSystemDefault, buff);
switch (((CFBundleRef)cf)->_binaryType) {
case __CFBundleCFMBinary:
binaryType = CFSTR("");
break;
case __CFBundleDYLDExecutableBinary:
binaryType = CFSTR("executable, ");
break;
case __CFBundleDYLDBundleBinary:
binaryType = CFSTR("bundle, ");
break;
case __CFBundleDYLDFrameworkBinary:
binaryType = CFSTR("framework, ");
break;
case __CFBundleDLLBinary:
binaryType = CFSTR("DLL, ");
break;
case __CFBundleUnreadableBinary:
binaryType = CFSTR("");
break;
default:
binaryType = CFSTR("");
break;
}
if (((CFBundleRef)cf)->_plugInData._isPlugIn) {
retval = CFStringCreateWithFormat(kCFAllocatorSystemDefault, NULL, CFSTR("CFBundle/CFPlugIn %p <%@> (%@%@loaded)"), cf, path, binaryType, ((CFBundleRef)cf)->_isLoaded ? CFSTR("") : CFSTR("not "));
} else {
retval = CFStringCreateWithFormat(kCFAllocatorSystemDefault, NULL, CFSTR("CFBundle %p <%@> (%@%@loaded)"), cf, path, binaryType, ((CFBundleRef)cf)->_isLoaded ? CFSTR("") : CFSTR("not "));
}
if (path) CFRelease(path);
return retval;
}
static void __CFBundleDeallocate(CFTypeRef cf) {
CFBundleRef bundle = (CFBundleRef)cf;
CFURLRef bundleURL;
CFStringRef bundleID = NULL;
__CFGenericValidateType(cf, CFBundleGetTypeID());
bundleURL = bundle->_url;
bundle->_url = NULL;
if (bundle->_infoDict) bundleID = (CFStringRef)CFDictionaryGetValue(bundle->_infoDict, kCFBundleIdentifierKey);
_CFBundleRemoveFromTables(bundle, bundleURL, bundleID);
CFBundleUnloadExecutable(bundle);
_CFBundleDeallocatePlugIn(bundle);
if (bundleURL) {
CFRelease(bundleURL);
}
if (bundle->_infoDict) CFRelease(bundle->_infoDict);
if (bundle->_localInfoDict) CFRelease(bundle->_localInfoDict);
if (bundle->_searchLanguages) CFRelease(bundle->_searchLanguages);
if (bundle->_executablePath) CFRelease(bundle->_executablePath);
if (bundle->_developmentRegion) CFRelease(bundle->_developmentRegion);
if (bundle->_infoPlistUrl) CFRelease(bundle->_infoPlistUrl);
if (bundle->_stringTable) CFRelease(bundle->_stringTable);
if (bundle->_bundleBasePath) CFRelease(bundle->_bundleBasePath);
if (bundle->_queryTable) CFRelease(bundle->_queryTable);
if (bundle->_localizations) CFRelease(bundle->_localizations);
if (bundle->_resourceDirectoryContents) CFRelease(bundle->_resourceDirectoryContents);
if (bundle->_additionalResourceBundles) CFRelease(bundle->_additionalResourceBundles);
_CFMutexDestroy(&(bundle->_bundleLoadingLock));
}
const CFRuntimeClass __CFBundleClass = {
_kCFRuntimeScannedObject,
"CFBundle",
NULL, // init
NULL, // copy
__CFBundleDeallocate,
NULL, // equal
NULL, // hash
NULL, //
__CFBundleCopyDescription
};
CFTypeID CFBundleGetTypeID(void) {
return _kCFRuntimeIDCFBundle;
}
// TODO: Remove this SPI, it appears no one is using it
// <rdar://problem/30925651> Remove _CFBundleGetExistingBundleWithBundleURL
CFBundleRef _CFBundleGetExistingBundleWithBundleURL(CFURLRef bundleURL) {
CFBundleRef bundle = NULL;
char buff[CFMaxPathSize];
CFURLRef newURL = NULL;
if (!CFURLGetFileSystemRepresentation(bundleURL, true, (uint8_t *)buff, CFMaxPathSize)) return NULL;
newURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)buff, strlen(buff), true);
if (!newURL) newURL = (CFURLRef)CFRetain(bundleURL);
// First check the main bundle; otherwise fallback to the other tables
CFBundleRef main = CFBundleGetMainBundle();
if (main->_url && newURL && CFEqual(main->_url, newURL)) {
CFRelease(newURL);
return main;
}
bundle = _CFBundleCopyFromTablesForURL(newURL);
if (bundle) CFRelease(bundle);
CFRelease(newURL);
return bundle;
}
static Boolean _CFBundlesHaveEquivalentURL(CFBundleRef b1, CFBundleRef b2) {
CFStringRef path1 = b1->_bundleBasePath;
CFStringRef path2 = b2->_bundleBasePath;
char path1CString[PATH_MAX];
char path2CString[PATH_MAX];
Boolean result = false;
if (CFStringGetFileSystemRepresentation(path1, path1CString, PATH_MAX) &&
CFStringGetFileSystemRepresentation(path2, path2CString, PATH_MAX)) {
int fd1 = open(path1CString, O_RDONLY);
int fd2 = open(path2CString, O_RDONLY);
if (fd1 > 0 && fd2 > 0) {
struct stat statbuf1;
struct stat statbuf2;
if (fstat(fd1, &statbuf1) == 0 &&
fstat(fd2, &statbuf2) == 0 &&
statbuf1.st_dev == statbuf2.st_dev &&
statbuf1.st_ino == statbuf2.st_ino)
{
result = true;
}
}
if (fd1 > 0) close(fd1);
if (fd2 > 0) close(fd2);
}
return result;
}
/*
The combinations of boolean arguments to this function are as follows:
doFinal | unique | addToTables
------- | ------ | -----------
true false true // CFBundleCreate
true true false // _CFBundleCreateUnique
false false false // _CFBundleCreateMain
false false true // _CFBundleEnsureBundleExistsForImagePath
n.b.
(unique && addToTables) is an invalid configuration and this function will assert.
(unique && doFinalProcessing) does nothing but there is no assert; doFinalProcessing is ignored
This is because doFinalProcessing is primarily about initializing plugins, but unique bundles cannot be plugins.
*/
static CFBundleRef _CFBundleCreate(CFAllocatorRef allocator, CFURLRef bundleURL, Boolean doFinalProcessing, Boolean unique, Boolean addToTables) {
char buff[CFMaxPathSize];
CFURLRef newURL = NULL;
if (!CFURLGetFileSystemRepresentation(bundleURL, true, (uint8_t *)buff, CFMaxPathSize)) return NULL;
newURL = CFURLCreateFromFileSystemRepresentation(allocator, (uint8_t *)buff, strlen(buff), true);
if (!newURL) newURL = (CFURLRef)CFRetain(bundleURL);
// Don't go searching for the URL in the tables if the bundle is unique or the main bundle (addToTables == false)
if (!unique && addToTables) {
CFBundleRef existingBundle = _CFBundleCopyFromTablesForURL(newURL);
if (existingBundle) {
CFRelease(newURL);
return existingBundle;
}
}
// This section of _CFBundleCreate touches the disk, so it should be done outside the lock. This avoids blocking threads which are just attempting to get an existing bundle on file system access, potentially from a lower-piority thread.
_CFBundleVersion localVersion = _CFBundleGetBundleVersionForURL(newURL);
if (_CFBundleVersionFlat == localVersion) {
Boolean exists = false;
SInt32 mode = 0;
SInt32 res = _CFGetPathProperties(allocator, (char *)buff, &exists, &mode, NULL, NULL, NULL, NULL);
#if DEPLOYMENT_RUNTIME_OBJC && TARGET_OS_WIN32
if (!(res == 0 && exists && ((mode & S_IFMT) == S_IFDIR))) {
// 2nd chance at finding a bundle path - remove the last path component (e.g., mybundle.resources) and try again
CFURLRef shorterPath = CFURLCreateCopyDeletingLastPathComponent(allocator, newURL);
CFRelease(newURL);
newURL = shorterPath;
res = _CFGetFileProperties(allocator, newURL, &exists, &mode, NULL, NULL, NULL, NULL);
}
#endif
if (res == 0) {
if (!exists || ((mode & S_IFMT) != S_IFDIR)) {
CFRelease(newURL);
return NULL;
}
} else {
CFRelease(newURL);
return NULL;
}
}
CFBundleRef bundle = (CFBundleRef)_CFRuntimeCreateInstance(allocator, CFBundleGetTypeID(), sizeof(struct __CFBundle) - sizeof(CFRuntimeBase), NULL);
if (!bundle) {
CFRelease(newURL);
return NULL;
}
bundle->_url = newURL;
#if !DEPLOYMENT_RUNTIME_OBJC && !TARGET_OS_WIN32 && !TARGET_OS_ANDROID
bundle->_isFHSInstalledBundle = _CFBundleURLIsForFHSInstalledBundle(newURL);
#endif
bundle->_version = localVersion;
#if defined(BINARY_SUPPORT_DYLD)
/* We'll have to figure it out later */
bundle->_binaryType = __CFBundleUnknownBinary;
#elif defined(BINARY_SUPPORT_DLL)
/* We support DLL only */
bundle->_binaryType = __CFBundleDLLBinary;
#else
/* We'll have to figure it out later */
bundle->_binaryType = __CFBundleUnknownBinary;
#endif /* BINARY_SUPPORT_DYLD */
bundle->_isUnique = unique;
#if TARGET_OS_OSX
if (!__CFgetenv("CFBundleDisableStringsSharing") &&
(strncmp(buff, "/System/Library/Frameworks", 26) == 0) &&
(strncmp(buff + strlen(buff) - 10, ".framework", 10) == 0)) bundle->_sharesStringsFiles = true;
#endif
_CFMutexCreate(&(bundle->_bundleLoadingLock));
bundle->_lock = CFLockInit;
bundle->_queryLock = CFLockInit;
CFURLRef absoURL = CFURLCopyAbsoluteURL(bundle->_url);
bundle->_bundleBasePath = CFURLCopyFileSystemPath(absoURL, PLATFORM_PATH_STYLE);
CFRelease(absoURL);
bundle->_additionalResourceLock = CFLockInit;
CFDictionaryRef infoDict = CFBundleGetInfoDictionary(bundle);
CFStringRef bundleID = CFBundleGetIdentifier(bundle);
// Do this so that we can use the dispatch_once on the ivar of this bundle safely
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wdeprecated"
OSMemoryBarrier();
#pragma GCC diagnostic pop
// We cannot add to tables for unique bundles. Return unique bundle results here without heading into the section below where we take a lock.
if (unique) {
assert(!addToTables);
return bundle;
}
// Locked after here for the global tables
_CFMutexLock(&CFBundleGlobalDataLock);
// Check to see if we already have a bundle with the same identifier or URL. Someone may have raced us to this point.
CFBundleRef existingBundleWithSameURL = _CFBundleCopyFromTablesForURLLocked(bundle->_url);
if (existingBundleWithSameURL) {
// Deallocating a bundle takes the lock when _useUnsafeUnretainedTables returns true, so release the lock first.
_CFMutexUnlock(&CFBundleGlobalDataLock);
CFRelease(bundle);
return existingBundleWithSameURL;
}
// It's unfortunate, but valid, for two different bundles to have the same identifier. However, if they also have the same URL (resolving symlinks), then we can return the original one because they are really the same bundle after all.
CFBundleRef existingBundleWithSameIdentifier = _CFBundleGetFromTablesLocked(bundleID);
if (existingBundleWithSameIdentifier && _CFBundlesHaveEquivalentURL(bundle, existingBundleWithSameIdentifier)) {
// Deallocating a bundle takes the lock when _useUnsafeUnretainedTables returns true, so release the lock first.
_CFMutexUnlock(&CFBundleGlobalDataLock);
CFRelease(bundle);
return (CFBundleRef)CFRetain(existingBundleWithSameIdentifier);
}
if (doFinalProcessing) {
// Initializing the tables for the list of plugins and initializing the tables for the list of bundles are inherently tied together, because plugins have references back to bundles.
// In order to preserve safety, we take both locks. Always in the order of CFBundleGlobalDataLock -> CFPlugInGlobalDataLock.
// We have to do this before adding the bundle to the tables, otherwise another thread coming along and fetching the bundle will get the bundle ref but the factories for PlugIn have not yet been registered.
CFBundleRef duplicateFactoryBundle = NULL;
if (!_CFBundleInitPlugIn(bundle, infoDict, &duplicateFactoryBundle)) {
// At this point the most likely explanation is that we have the same factory ID but two different bundles. There is no way to really proceed safely here because the plugin system can only deal with one factory ID -> bundle pairing.
// Get some info for error logging
CFDictionaryRef factoryDict = (CFDictionaryRef)CFDictionaryGetValue(infoDict, kCFPlugInFactoriesKey);
if (factoryDict && CFGetTypeID(factoryDict) != CFDictionaryGetTypeID()) factoryDict = NULL;
os_log_error(_CFBundleLoadingLogger(), "More than one bundle with the same factory UUID detected: %{public}@ in %{public}@ and %{public}@", factoryDict, bundle, duplicateFactoryBundle);
// Deallocating a bundle takes the lock when _useUnsafeUnretainedTables returns true, so release the lock first.
_CFMutexUnlock(&CFBundleGlobalDataLock);
// Release the allocated instance
CFRelease(bundle);
// Release the duplicate factory bundle
if (duplicateFactoryBundle) CFRelease(duplicateFactoryBundle);
return NULL;
}
}
if (addToTables) {
_CFBundleAddToTablesLocked(bundle, bundleID);
}
_CFMutexUnlock(&CFBundleGlobalDataLock);
if (doFinalProcessing) {
// Outside of the lock, handle dynamic registration
_CFPlugInHandleDynamicRegistration(bundle);
}
return bundle;
}
CFBundleRef CFBundleCreate(CFAllocatorRef allocator, CFURLRef bundleURL) {
if (NULL == bundleURL) return NULL;
// _CFBundleCreate doesn't know about the main bundle, so we have to check that first. If the URL passed in is the same as the main bundle, then we'll need to return that bundle first.
// Result will be nil if the bundleURL passed in happened to have been the main bundle.
// As a fallback, check now to see if the main bundle URL is equal to bundleURL. If so, return that bundle instead of nil (32988858).
CFBundleRef main = CFBundleGetMainBundle();
if (main && main->_url && CFEqual(main->_url, bundleURL)) {
CFRetain(main);
return main;
}
return _CFBundleCreate(allocator, bundleURL, true, false, true);
}
CFBundleRef _CFBundleCreateUnique(CFAllocatorRef allocator, CFURLRef bundleURL) {
// This function can never return an existing CFBundleRef object.
return _CFBundleCreate(allocator, bundleURL, true, true, false);
}
CF_PRIVATE CFBundleRef _CFBundleCreateMain(CFAllocatorRef allocator, CFURLRef mainBundleURL) {
// Do not add the main bundle to tables
return _CFBundleCreate(allocator, mainBundleURL, false, false, false);
}
CFArrayRef CFBundleCreateBundlesFromDirectory(CFAllocatorRef alloc, CFURLRef directoryURL, CFStringRef bundleType) {
CFMutableArrayRef bundles = CFArrayCreateMutable(alloc, 0, &kCFTypeArrayCallBacks);
CFArrayRef URLs = _CFCreateContentsOfDirectory(alloc, NULL, NULL, directoryURL, bundleType);
if (URLs) {
CFIndex c = CFArrayGetCount(URLs);
CFURLRef curURL;
CFBundleRef curBundle;
for (CFIndex i = 0; i < c; i++) {
curURL = (CFURLRef)CFArrayGetValueAtIndex(URLs, i);
curBundle = CFBundleCreate(alloc, curURL);
if (curBundle) {
CFArrayAppendValue(bundles, curBundle);
#ifdef __clang_analyzer__
// The contract of this function is that the bundles created inside here are 'not released'.
CFRelease(curBundle);
#endif
}
}
CFRelease(URLs);
}
return bundles;
}
CFURLRef CFBundleCopyBundleURL(CFBundleRef bundle) {
CF_ASSERT_TYPE(_kCFRuntimeIDCFBundle, bundle);
if (bundle->_url) CFRetain(bundle->_url);
return bundle->_url;
}
UInt32 CFBundleGetVersionNumber(CFBundleRef bundle) {
CFDictionaryRef infoDict = CFBundleGetInfoDictionary(bundle);
CFNumberRef versionValue = (CFNumberRef)CFDictionaryGetValue(infoDict, _kCFBundleNumericVersionKey);
if (!versionValue || CFGetTypeID(versionValue) != CFNumberGetTypeID()) return 0;
UInt32 vers = 0;
CFNumberGetValue(versionValue, kCFNumberSInt32Type, &vers);
return vers;
}
CFStringRef CFBundleGetDevelopmentRegion(CFBundleRef bundle) {