diff options
Diffstat (limited to 'libs/androidfw/AssetManager.cpp')
| -rw-r--r-- | libs/androidfw/AssetManager.cpp | 363 |
1 files changed, 333 insertions, 30 deletions
diff --git a/libs/androidfw/AssetManager.cpp b/libs/androidfw/AssetManager.cpp index ed7808a..2ce8d0b 100644 --- a/libs/androidfw/AssetManager.cpp +++ b/libs/androidfw/AssetManager.cpp @@ -1,5 +1,6 @@ /* * Copyright (C) 2006 The Android Open Source Project + * This code has been modified. Portions copyright (C) 2010, T-Mobile USA, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -78,6 +79,7 @@ static const char* kSystemAssets = "framework/framework-res.apk"; static const char* kCMSDKAssets = "framework/org.cyanogenmod.platform-res.apk"; static const char* kResourceCache = "resource-cache"; static const char* kAndroidManifest = "AndroidManifest.xml"; +static const int kComposedIconAsset = 128; static const char* kExcludeExtension = ".EXCLUDE"; @@ -91,9 +93,10 @@ const char* AssetManager::OVERLAY_DIR = "/vendor/overlay"; const char* AssetManager::TARGET_PACKAGE_NAME = "android"; const char* AssetManager::TARGET_APK_PATH = "/system/framework/framework-res.apk"; const char* AssetManager::IDMAP_DIR = "/data/resource-cache"; +const char* AssetManager::APK_EXTENSION = ".apk"; namespace { - String8 idmapPathForPackagePath(const String8& pkgPath) + String8 idmapPathForPackagePath(const String8& pkgPath, const String8& targetPkgPath) { const char* root = getenv("ANDROID_DATA"); LOG_ALWAYS_FATAL_IF(root == NULL, "ANDROID_DATA not set"); @@ -101,7 +104,7 @@ namespace { path.appendPath(kResourceCache); char buf[256]; // 256 chars should be enough for anyone... - strncpy(buf, pkgPath.string(), 255); + strncpy(buf, targetPkgPath.string(), 255); buf[255] = '\0'; char* filename = buf; while (*filename && *filename == '/') { @@ -115,6 +118,22 @@ namespace { ++p; } path.appendPath(filename); + path.append("@"); + + strncpy(buf, pkgPath.string(), 255); + buf[255] = '\0'; + filename = buf; + while (*filename && *filename == '/') { + ++filename; + } + p = filename; + while (*p) { + if (*p == '/') { + *p = '@'; + } + ++p; + } + path.append(filename); path.append("@idmap"); return path; @@ -137,6 +156,13 @@ namespace { return newStr; } + + static String8 flatten_path(const char *path) + { + String16 tmp(path); + tmp.replaceAll('/', '@'); + return String8(tmp); + } } /* @@ -153,7 +179,8 @@ int32_t AssetManager::getGlobalCount() AssetManager::AssetManager(CacheMode cacheMode) : mLocale(NULL), mVendor(NULL), mResources(NULL), mConfig(new ResTable_config), - mCacheMode(cacheMode), mCacheValid(false) + mBasePackageIndex(-1), mCacheMode(cacheMode), + mCacheValid(false) { int count = android_atomic_inc(&gCount) + 1; if (kIsDebug) { @@ -239,18 +266,42 @@ bool AssetManager::addAssetPath(const String8& path, int32_t* cookie) #endif if (mResources != NULL) { - appendPathToResTable(ap); + appendPathToResTable(ap, NULL); } return true; } -bool AssetManager::addOverlayPath(const String8& packagePath, int32_t* cookie) +/** + * packagePath: Path to the APK that contains our overlay + * cookie: Set by this method. The caller can use this cookie to refer to the asset path that has + * been added. + * resApkPath: Path to the overlay's processed and cached resources. + * targetPkgPath: Path to the APK we are trying to overlay + * prefixPath: This is the base path internal to the overlay APK. + * For example, if we have theme "com.redtheme.apk" + * with a launcher overlay then this theme will have a structure like this: + * assets/ + * com.android.launcher/ + * res/ + * drawable/ + * foo.png + * Our resources.arsc will reference foo.png's path as "res/drawable/foo.png" + * so we need "assets/com.android.launcher/" as a prefix + */ +bool AssetManager::addOverlayPath(const String8& packagePath, int32_t* cookie, + const String8& resApkPath, const String8& targetPkgPath, + const String8& prefixPath) { - const String8 idmapPath = idmapPathForPackagePath(packagePath); + const String8 idmapPath = idmapPathForPackagePath(packagePath, targetPkgPath); AutoMutex _l(mLock); + ALOGV("package path: %s, idmap Path: %s, resApkPath %s, targetPkgPath: %s", + packagePath.string(), idmapPath.string(), + resApkPath.string(), + targetPkgPath.string()); + for (size_t i = 0; i < mAssetPaths.size(); ++i) { if (mAssetPaths[i].idmap == idmapPath) { *cookie = static_cast<int32_t>(i + 1); @@ -296,32 +347,195 @@ bool AssetManager::addOverlayPath(const String8& packagePath, int32_t* cookie) oap.path = overlayPath; oap.type = ::getFileType(overlayPath.string()); oap.idmap = idmapPath; + oap.resApkPath = resApkPath; #if 0 ALOGD("Overlay added: targetPath=%s overlayPath=%s idmapPath=%s\n", targetPath.string(), overlayPath.string(), idmapPath.string()); #endif + oap.prefixPath = prefixPath; //ex: assets/com.foo.bar mAssetPaths.add(oap); *cookie = static_cast<int32_t>(mAssetPaths.size()); if (mResources != NULL) { - appendPathToResTable(oap); + appendPathToResTable(oap, NULL); } return true; } +bool AssetManager::addCommonOverlayPath(const String8& packagePath, int32_t* cookie, + const String8& resApkPath, const String8& prefixPath) +{ + AutoMutex _l(mLock); + + ALOGV("targetApkPath: %s, resApkPath %s, prefixPath %s", + packagePath.string(), resApkPath.string(), prefixPath.string()); + + // Skip if we have it already. + for (size_t i = 0; i < mAssetPaths.size(); ++i) { + if (mAssetPaths[i].path == packagePath && mAssetPaths[i].resApkPath == resApkPath) { + *cookie = static_cast<int32_t>(i + 1); + return true; + } + } + + asset_path oap; + oap.path = packagePath; + oap.type = ::getFileType(packagePath.string()); + oap.resApkPath = resApkPath; + oap.prefixPath = prefixPath; + mAssetPaths.add(oap); + *cookie = static_cast<int32_t>(mAssetPaths.size()); + + if (mResources != NULL) { + size_t index = mAssetPaths.size() - 1; + appendPathToResTable(oap, &index); + } + + return true; +} + +/* + * packagePath: Path to the APK that contains our icon assets + * cookie: Set by this method. The caller can use this cookie to refer to the added asset path. + * resApkPath: Path to the icon APK's processed and cached resources. + * prefixPath: This is the base path internal to the icon APK. + For example, if we have theme "com.redtheme.apk" + * assets/ + * icons/ + * res/ + * drawable/ + * foo.png + * Our restable will reference foo.png's path as "res/drawable/foo.png" + * so we need "assets/com.android.launcher/" as a prefix + * pkgIdOverride: The package id we want to give. This will overridet the id in the res table. + * This is necessary for legacy icon packs because they are compiled with the + * standard 7F package id. +*/ +bool AssetManager::addIconPath(const String8& packagePath, int32_t* cookie, + const String8& resApkPath, const String8& prefixPath, + uint32_t pkgIdOverride) +{ + AutoMutex _l(mLock); + + ALOGV("package path: %s, resApkPath %s, prefixPath %s", + packagePath.string(), + resApkPath.string(), prefixPath.string()); + + // Skip if we have it already. + for (size_t i = 0; i < mAssetPaths.size(); i++) { + if (mAssetPaths[i].path == packagePath && mAssetPaths[i].resApkPath == resApkPath) { + *cookie = static_cast<int32_t>(i + 1); + return true; + } + } + + asset_path oap; + oap.path = packagePath; + oap.type = ::getFileType(packagePath.string()); + oap.resApkPath = resApkPath; + oap.prefixPath = prefixPath; + oap.pkgIdOverride = pkgIdOverride; + mAssetPaths.add(oap); + *cookie = static_cast<int32_t>(mAssetPaths.size()); + + if (mResources != NULL) { + size_t index = mAssetPaths.size() - 1; + appendPathToResTable(oap, &index); + } + + return true; +} + +String8 AssetManager::getPkgName(const char *apkPath) { + String8 pkgName; + + asset_path ap; + ap.type = kFileTypeRegular; + ap.path = String8(apkPath); + + ResXMLTree tree; + + Asset* manifestAsset = openNonAssetInPathLocked(kAndroidManifest, Asset::ACCESS_BUFFER, ap); + tree.setTo(manifestAsset->getBuffer(true), + manifestAsset->getLength()); + tree.restart(); + + size_t len; + ResXMLTree::event_code_t code; + while ((code=tree.next()) != ResXMLTree::END_DOCUMENT && code != ResXMLTree::BAD_DOCUMENT) { + if (code != ResXMLTree::START_TAG) { + continue; + } + String8 tag(tree.getElementName(&len)); + if (tag != "manifest") break; //Manifest does not start with <manifest> + size_t len; + ssize_t idx = tree.indexOfAttribute(NULL, "package"); + const char16_t* str = tree.getAttributeStringValue(idx, &len); + pkgName = (str ? String8(str, len) : String8()); + + } + + manifestAsset->close(); + return pkgName; + } + +/** + * Returns the base package name as defined in the AndroidManifest.xml + */ +String8 AssetManager::getBasePackageName(uint32_t index) +{ + if (index >= mAssetPaths.size()) return String8::empty(); + + if (mBasePackageName.isEmpty() || mBasePackageIndex != index) { + mBasePackageName = getPkgName(mAssetPaths[index].path.string()); + mBasePackageIndex = index; + } + return mBasePackageName; +} + +String8 AssetManager::getOverlayResPath(const char* targetApkPath, const char* overlayApkPath) +{ + //Remove leading '/' + if (strlen(overlayApkPath) >= 2 && *overlayApkPath == '/') { + overlayApkPath++; + } + String8 overlayApkPathFlat = flatten_path(overlayApkPath); + String8 targetPkgName = getPkgName(targetApkPath); + + String8 resPath(AssetManager::IDMAP_DIR); + resPath.appendPath(overlayApkPathFlat); + resPath.append("@"); + resPath.append(targetPkgName); + resPath.append("/"); + resPath.append("resources"); + resPath.append(AssetManager::APK_EXTENSION); + return resPath; +} + bool AssetManager::createIdmap(const char* targetApkPath, const char* overlayApkPath, - uint32_t targetCrc, uint32_t overlayCrc, uint32_t** outData, size_t* outSize) + uint32_t targetCrc, uint32_t overlayCrc, + time_t targetMtime, time_t overlayMtime, + uint32_t** outData, size_t* outSize) { AutoMutex _l(mLock); const String8 paths[2] = { String8(targetApkPath), String8(overlayApkPath) }; ResTable tables[2]; + //Our overlay APK might use an external restable + String8 resPath = getOverlayResPath(targetApkPath, overlayApkPath); + for (int i = 0; i < 2; ++i) { asset_path ap; ap.type = kFileTypeRegular; ap.path = paths[i]; - Asset* ass = openNonAssetInPathLocked("resources.arsc", Asset::ACCESS_BUFFER, ap); + Asset* ass; + if (i == 1 && access(resPath.string(), R_OK) != -1) { + ap.path = resPath; + ass = openNonAssetInPathLocked("resources.arsc", Asset::ACCESS_BUFFER, ap); + } else { + ass = openNonAssetInPathLocked("resources.arsc", Asset::ACCESS_BUFFER, ap); + } if (ass == NULL) { ALOGW("failed to find resources.arsc in %s\n", ap.path.string()); return false; @@ -329,7 +543,7 @@ bool AssetManager::createIdmap(const char* targetApkPath, const char* overlayApk tables[i].add(ass); } - return tables[0].createIdmap(tables[1], targetCrc, overlayCrc, + return tables[0].createIdmap(tables[1], targetCrc, overlayCrc, targetMtime, overlayMtime, targetApkPath, overlayApkPath, (void**)outData, outSize) == NO_ERROR; } @@ -522,6 +736,10 @@ Asset* AssetManager::open(const char* fileName, AccessMode mode) i--; ALOGV("Looking for asset '%s' in '%s'\n", assetName.string(), mAssetPaths.itemAt(i).path.string()); + + // Skip theme/icon attached assets + if (mAssetPaths.itemAt(i).prefixPath.length() > 0) continue; + Asset* pAsset = openNonAssetInPathLocked(assetName.string(), mode, mAssetPaths.itemAt(i)); if (pAsset != NULL) { return pAsset != kExcludedAsset ? pAsset : NULL; @@ -555,6 +773,10 @@ Asset* AssetManager::openNonAsset(const char* fileName, AccessMode mode, int32_t while (i > 0) { i--; ALOGV("Looking for non-asset '%s' in '%s'\n", fileName, mAssetPaths.itemAt(i).path.string()); + + // Skip theme/icon attached assets + if (mAssetPaths.itemAt(i).prefixPath.length() > 0) continue; + Asset* pAsset = openNonAssetInPathLocked( fileName, mode, mAssetPaths.itemAt(i)); if (pAsset != NULL) { @@ -585,6 +807,16 @@ Asset* AssetManager::openNonAsset(const int32_t cookie, const char* fileName, Ac if (pAsset != NULL) { return pAsset != kExcludedAsset ? pAsset : NULL; } + } else if ((size_t)cookie == kComposedIconAsset) { + asset_path ap; + String8 path(fileName); + ap.type = kFileTypeDirectory; + ap.path = path.getPathDir(); + Asset* pAsset = openNonAssetInPathLocked( + path.getPathLeaf().string(), mode, ap); + if (pAsset != NULL) { + return pAsset; + } } return NULL; @@ -614,7 +846,7 @@ FileType AssetManager::getFileType(const char* fileName) return kFileTypeRegular; } -bool AssetManager::appendPathToResTable(const asset_path& ap) const { +bool AssetManager::appendPathToResTable(const asset_path& ap, size_t* entryIdx) const { // skip those ap's that correspond to system overlays if (ap.isSystemOverlay) { return true; @@ -628,8 +860,12 @@ bool AssetManager::appendPathToResTable(const asset_path& ap) const { Asset* idmap = openIdmapLocked(ap); size_t nextEntryIdx = mResources->getTableCount(); ALOGV("Looking for resource asset in '%s'\n", ap.path.string()); - if (ap.type != kFileTypeDirectory) { - if (nextEntryIdx == 0) { + if (!ap.resApkPath.isEmpty()) { + // Avoid using prefix path in this case since the compiled resApk will simply have resources.arsc in it + ass = const_cast<AssetManager*>(this)->openNonAssetInPathLocked("resources.arsc", Asset::ACCESS_BUFFER, ap, false); + shared = false; + } else if (ap.type != kFileTypeDirectory) { + if (*entryIdx == 0) { // The first item is typically the framework resources, // which we want to avoid parsing every time. sharedRes = const_cast<AssetManager*>(this)-> @@ -660,7 +896,7 @@ bool AssetManager::appendPathToResTable(const asset_path& ap) const { // can quickly copy it out for others. ALOGV("Creating shared resources for %s", ap.path.string()); sharedRes = new ResTable(); - sharedRes->add(ass, idmap, nextEntryIdx + 1, false); + sharedRes->add(ass, idmap, *entryIdx + 1, false, ap.pkgIdOverride); #ifdef HAVE_ANDROID_OS const char* data = getenv("ANDROID_DATA"); LOG_ALWAYS_FATAL_IF(data == NULL, "ANDROID_DATA not set"); @@ -689,7 +925,7 @@ bool AssetManager::appendPathToResTable(const asset_path& ap) const { mResources->add(sharedRes); } else { ALOGV("Parsing resources for %s", ap.path.string()); - mResources->add(ass, idmap, nextEntryIdx + 1, !shared); + mResources->add(ass, idmap, *entryIdx + 1, !shared, ap.pkgIdOverride); } onlyEmptyResources = false; @@ -738,7 +974,7 @@ const ResTable* AssetManager::getResTable(bool required) const bool onlyEmptyResources = true; const size_t N = mAssetPaths.size(); for (size_t i=0; i<N; i++) { - bool empty = appendPathToResTable(mAssetPaths.itemAt(i)); + bool empty = appendPathToResTable(mAssetPaths.itemAt(i), &i); onlyEmptyResources = onlyEmptyResources && empty; } @@ -815,7 +1051,7 @@ void AssetManager::addSystemOverlays(const char* pathOverlaysList, if (oass != NULL) { Asset* oidmap = openIdmapLocked(oap); offset++; - sharedRes->add(oass, oidmap, offset + 1, false); + sharedRes->add(oass, oidmap, offset + 1, false, oap.pkgIdOverride); const_cast<AssetManager*>(this)->mAssetPaths.add(oap); const_cast<AssetManager*>(this)->mZipSet.addOverlay(targetPackagePath, oap); } @@ -823,6 +1059,29 @@ void AssetManager::addSystemOverlays(const char* pathOverlaysList, fclose(fin); } +bool AssetManager::removeOverlayPath(const String8& packageName, int32_t cookie) +{ + AutoMutex _l(mLock); + + const size_t which = ((size_t)cookie)-1; + if (which >= mAssetPaths.size()) { + ALOGE("cookie was larger than paths size"); + return false; + } + + mAssetPaths.removeAt(which); + + ResTable* rt = mResources; + if (rt == NULL) { + ALOGE("Unable to remove overlayPath, ResTable must not be NULL"); + return false; + } + + rt->removeAssetsByCookie(packageName, cookie); + + return true; +} + const ResTable& AssetManager::getResources(bool required) const { const ResTable* rt = getResTable(required); @@ -857,18 +1116,28 @@ void AssetManager::getLocales(Vector<String8>* locales) const * Open a non-asset file as if it were an asset, searching for it in the * specified app. * + * * Pass in a NULL values for "appName" if the common app directory should * be used. */ Asset* AssetManager::openNonAssetInPathLocked(const char* fileName, AccessMode mode, - const asset_path& ap) + const asset_path& ap, bool usePrefix) { Asset* pAsset = NULL; + // Append asset_path prefix if needed + const char* fileNameFinal = fileName; + String8 fileNameWithPrefix; + if (usePrefix && ap.prefixPath.length() > 0) { + fileNameWithPrefix.append(ap.prefixPath); + fileNameWithPrefix.append(fileName); + fileNameFinal = fileNameWithPrefix.string(); + } + /* look at the filesystem on disk */ if (ap.type == kFileTypeDirectory) { String8 path(ap.path); - path.appendPath(fileName); + path.appendPath(fileNameFinal); pAsset = openAssetFromFileLocked(path, mode); @@ -886,24 +1155,45 @@ Asset* AssetManager::openNonAssetInPathLocked(const char* fileName, AccessMode m /* look inside the zip file */ } else { String8 path(fileName); + const char* zipPath; /* check the appropriate Zip file */ - ZipFileRO* pZip = getZipFileLocked(ap); - if (pZip != NULL) { - //printf("GOT zip, checking NA '%s'\n", (const char*) path); - ZipEntryRO entry = pZip->findEntryByName(path.string()); - if (entry != NULL) { - //printf("FOUND NA in Zip file for %s\n", appName ? appName : kAppCommon); - pAsset = openAssetFromZipLocked(pZip, entry, mode, path); - pZip->releaseEntry(entry); + ZipFileRO* pZip; + ZipEntryRO entry; + + if (!ap.resApkPath.isEmpty()) { + pZip = getZipFileLocked(ap.resApkPath); + if (pZip != NULL) { + //printf("GOT zip, checking NA '%s'\n", (const char*) path); + entry = pZip->findEntryByName(path.string()); + if (entry != NULL) { + //printf("FOUND NA in Zip file for %s\n", appName ? appName : kAppCommon); + pAsset = openAssetFromZipLocked(pZip, entry, mode, path); + zipPath = ap.resApkPath.string(); + } + } + } + + if (pAsset == NULL) { + path.setTo(fileNameFinal); + pZip = getZipFileLocked(ap); + if (pZip != NULL) { + //printf("GOT zip, checking NA '%s'\n", (const char*) path); + ZipEntryRO entry = pZip->findEntryByName(path.string()); + if (entry != NULL) { + //printf("FOUND NA in Zip file for %s\n", appName ? appName : kAppCommon); + pAsset = openAssetFromZipLocked(pZip, entry, mode, path); + pZip->releaseEntry(entry); + zipPath = ap.path.string(); + } } } if (pAsset != NULL) { /* create a "source" name, for debug/display */ pAsset->setAssetSource( - createZipSourceNameLocked(ZipSet::getPathName(ap.path.string()), String8(""), - String8(fileName))); + createZipSourceNameLocked(ZipSet::getPathName(zipPath), String8(""), + String8(path.string()))); } } @@ -1115,9 +1405,14 @@ String8 AssetManager::createPathNameLocked(const asset_path& ap, const char* roo */ ZipFileRO* AssetManager::getZipFileLocked(const asset_path& ap) { + return getZipFileLocked(ap.path); +} + +ZipFileRO* AssetManager::getZipFileLocked(const String8& path) +{ ALOGV("getZipFileLocked() in %p\n", this); - return mZipSet.getZip(ap.path); + return mZipSet.getZip(path); } /* @@ -1239,6 +1534,10 @@ AssetDir* AssetManager::openDir(const char* dirName) while (i > 0) { i--; const asset_path& ap = mAssetPaths.itemAt(i); + + // Skip theme/icon attached assets + if (ap.prefixPath.length() > 0) continue; + if (ap.type == kFileTypeRegular) { ALOGV("Adding directory %s from zip %s", dirName, ap.path.string()); scanAndMergeZipLocked(pMergedInfo, ap, kAssetsRoot, dirName); @@ -1780,6 +2079,10 @@ void AssetManager::fncScanLocked(SortedVector<AssetDir::FileInfo>* pMergedInfo, while (i > 0) { i--; const asset_path& ap = mAssetPaths.itemAt(i); + + // Skip theme/icon attached assets + if (ap.prefixPath.length() > 0) continue; + fncScanAndMergeDirLocked(pMergedInfo, ap, NULL, NULL, dirName); if (mLocale != NULL) fncScanAndMergeDirLocked(pMergedInfo, ap, mLocale, NULL, dirName); |