/*
* Copyright 2006, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define ATRACE_TAG ATRACE_TAG_RESOURCES
#define LOG_TAG "asset"
#include <inttypes.h>
#include <linux/capability.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/system_properties.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <private/android_filesystem_config.h> // for AID_SYSTEM
#include "android-base/logging.h"
#include "android-base/properties.h"
#include "android-base/stringprintf.h"
#include "android_runtime/android_util_AssetManager.h"
#include "android_runtime/AndroidRuntime.h"
#include "android_util_Binder.h"
#include "androidfw/Asset.h"
#include "androidfw/AssetManager.h"
#include "androidfw/AssetManager2.h"
#include "androidfw/AttributeResolution.h"
#include "androidfw/MutexGuard.h"
#include "androidfw/ResourceTypes.h"
#include "core_jni_helpers.h"
#include "jni.h"
#include "nativehelper/JNIHelp.h"
#include "nativehelper/ScopedPrimitiveArray.h"
#include "nativehelper/ScopedStringChars.h"
#include "nativehelper/ScopedUtfChars.h"
#include "utils/Log.h"
#include "utils/misc.h"
#include "utils/String8.h"
#include "utils/Trace.h"
extern "C" int capget(cap_user_header_t hdrp, cap_user_data_t datap);
extern "C" int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
using ::android::base::StringPrintf;
namespace android {
// ----------------------------------------------------------------------------
static struct typedvalue_offsets_t {
jfieldID mType;
jfieldID mData;
jfieldID mString;
jfieldID mAssetCookie;
jfieldID mResourceId;
jfieldID mChangingConfigurations;
jfieldID mDensity;
} gTypedValueOffsets;
static struct assetfiledescriptor_offsets_t {
jfieldID mFd;
jfieldID mStartOffset;
jfieldID mLength;
} gAssetFileDescriptorOffsets;
// This is also used by asset_manager.cpp.
assetmanager_offsets_t gAssetManagerOffsets;
static struct {
jfieldID native_ptr;
} gApkAssetsFields;
static struct sparsearray_offsets_t {
jclass classObject;
jmethodID constructor;
jmethodID put;
} gSparseArrayOffsets;
static struct configuration_offsets_t {
jclass classObject;
jmethodID constructor;
jfieldID mSmallestScreenWidthDpOffset;
jfieldID mScreenWidthDpOffset;
jfieldID mScreenHeightDpOffset;
} gConfigurationOffsets;
jclass g_stringClass = nullptr;
// ----------------------------------------------------------------------------
// Java asset cookies have 0 as an invalid cookie, but TypedArray expects < 0.
constexpr inline static jint ApkAssetsCookieToJavaCookie(ApkAssetsCookie cookie) {
return cookie != kInvalidCookie ? static_cast<jint>(cookie + 1) : -1;
}
constexpr inline static ApkAssetsCookie JavaCookieToApkAssetsCookie(jint cookie) {
return cookie > 0 ? static_cast<ApkAssetsCookie>(cookie - 1) : kInvalidCookie;
}
// This is called by zygote (running as user root) as part of preloadResources.
static void NativeVerifySystemIdmaps(JNIEnv* /*env*/, jclass /*clazz*/) {
switch (pid_t pid = fork()) {
case -1:
PLOG(ERROR) << "failed to fork for idmap";
break;
// child
case 0: {
struct __user_cap_header_struct capheader;
struct __user_cap_data_struct capdata;
memset(&capheader, 0, sizeof(capheader));
memset(&capdata, 0, sizeof(capdata));
capheader.version = _LINUX_CAPABILITY_VERSION;
capheader.pid = 0;
if (capget(&capheader, &capdata) != 0) {
PLOG(ERROR) << "capget";
exit(1);
}
capdata.effective = capdata.permitted;
if (capset(&capheader, &capdata) != 0) {
PLOG(ERROR) << "capset";
exit(1);
}
if (setgid(AID_SYSTEM) != 0) {
PLOG(ERROR) << "setgid";
exit(1);
}
if (setuid(AID_SYSTEM) != 0) {
PLOG(ERROR) << "setuid";
exit(1);
}
// Generic idmap parameters
const char* argv[8];
int argc = 0;
struct stat st;
memset(argv, 0, sizeof(argv));
argv[argc++] = AssetManager::IDMAP_BIN;
argv[argc++] = "--scan";
argv[argc++] = AssetManager::TARGET_PACKAGE_NAME;
argv[argc++] = AssetManager::TARGET_APK_PATH;
argv[argc++] = AssetManager::IDMAP_DIR;
// Directories to scan for overlays: if OVERLAY_THEME_DIR_PROPERTY is defined,
// use OVERLAY_DIR/<value of OVERLAY_THEME_DIR_PROPERTY> in addition to OVERLAY_DIR.
std::string overlay_theme_path = base::GetProperty(AssetManager::OVERLAY_THEME_DIR_PROPERTY,
"");
if (!overlay_theme_path.empty()) {
overlay_theme_path = std::string(AssetManager::OVERLAY_DIR) + "/" + overlay_theme_path;
if (stat(overlay_theme_path.c_str(), &st) == 0) {
argv[argc++] = overlay_theme_path.c_str();
}
}
if (stat(AssetManager::OVERLAY_DIR, &st) == 0) {
argv[argc++] = AssetManager::OVERLAY_DIR;
}
if (stat(AssetManager::PRODUCT_OVERLAY_DIR, &st) == 0) {
argv[argc++] = AssetManager::PRODUCT_OVERLAY_DIR;
}
// Finally, invoke idmap (if any overlay directory exists)
if (argc > 5) {
execv(AssetManager::IDMAP_BIN, (char* const*)argv);
PLOG(ERROR) << "failed to execv for idmap";
exit(1); // should never get here
} else {
exit(0);
}
} break;
// parent
default:
waitpid(pid, nullptr, 0);
break;
}
}
static jint CopyValue(JNIEnv* env, ApkAssetsCookie cookie, const Res_value& value, uint32_t ref,
uint32_t type_spec_flags, ResTable_config* config, jobject out_typed_value) {
env->SetIntField(out_typed_value, gTypedValueOffsets.mType, value.dataType);
env->SetIntField(out_typed_value, gTypedValueOffsets.mAssetCookie,
ApkAssetsCookieToJavaCookie(cookie));
env->SetIntField(out_typed_value, gTypedValueOffsets.mData, value.data);
env->SetObjectField(out_typed_value, gTypedValueOffsets.mString, nullptr);
env->SetIntField(out_typed_value, gTypedValueOffsets.mResourceId, ref);
env->SetIntField(out_typed_value, gTypedValueOffsets.mChangingConfigurations, type_spec_flags);
if (config != nullptr) {
env->SetIntField(out_typed_value, gTypedValueOffsets.mDensity, config->density);
}
return static_cast<jint>(ApkAssetsCookieToJavaCookie(cookie));
}
// ----------------------------------------------------------------------------
// Let the opaque type AAssetManager refer to a guarded AssetManager2 instance.
struct GuardedAssetManager : public ::AAssetManager {
Guarded<AssetManager2> guarded_assetmanager;
};
::AAssetManager* NdkAssetManagerForJavaObject(JNIEnv* env, jobject jassetmanager) {
jlong assetmanager_handle = env->GetLongField(jassetmanager, gAssetManagerOffsets.mObject);
::AAssetManager* am = reinterpret_cast<::AAssetManager*>(assetmanager_handle);
if (am == nullptr) {
jniThrowException(env, "java/lang/IllegalStateException", "AssetManager has been finalized!");
return nullptr;
}
return am;
}
Guarded<AssetManager2>* AssetManagerForNdkAssetManager(::AAssetManager* assetmanager) {
if (assetmanager == nullptr) {
return nullptr;
}
return &reinterpret_cast<GuardedAssetManager*>(assetmanager)->guarded_assetmanager;
}
Guarded<AssetManager2>* AssetManagerForJavaObject(JNIEnv* env, jobject jassetmanager) {
return AssetManagerForNdkAssetManager(NdkAssetManagerForJavaObject(env, jassetmanager));
}
static Guarded<AssetManager2>& AssetManagerFromLong(jlong ptr) {
return *AssetManagerForNdkAssetManager(reinterpret_cast<AAssetManager*>(ptr));
}
static jobject ReturnParcelFileDescriptor(JNIEnv* env, std::unique_ptr<Asset> asset,
jlongArray out_offsets) {
off64_t start_offset, length;
int fd = asset->openFileDescriptor(&start_offset, &length);
asset.reset();
if (fd < 0) {
jniThrowException(env, "java/io/FileNotFoundException",
"This file can not be opened as a file descriptor; it is probably "
"compressed");
return nullptr;
}
jlong* offsets = reinterpret_cast<jlong*>(env->GetPrimitiveArrayCritical(out_offsets, 0));
if (offsets == nullptr) {
close(fd);
return nullptr;
}
offsets[0] = start_offset;
offsets[1] = length;
env->ReleasePrimitiveArrayCritical(out_offsets, offsets, 0);
jobject file_desc = jniCreateFileDescriptor(env, fd);
if (file_desc == nullptr) {
close(fd);
return nullptr;
}
return newParcelFileDescriptor(env, file_desc);
}
static jint NativeGetGlobalAssetCount(JNIEnv* /*env*/, jobject /*clazz*/) {
return Asset::getGlobalCount();
}
static jobject NativeGetAssetAllocations(JNIEnv* env, jobject /*clazz*/) {
String8 alloc = Asset::getAssetAllocations();
if (alloc.length() <= 0) {
return nullptr;
}
return env->NewStringUTF(alloc.string());
}
static jint NativeGetGlobalAssetManagerCount(JNIEnv* /*env*/, jobject /*clazz*/) {
// TODO(adamlesinski): Switch to AssetManager2.
return AssetManager::getGlobalCount();
}
static jlong NativeCreate(JNIEnv* /*env*/, jclass /*clazz*/) {
// AssetManager2 needs to be protected by a lock. To avoid cache misses, we allocate the lock and
// AssetManager2 in a contiguous block (GuardedAssetManager).
return reinterpret_cast<jlong>(new GuardedAssetManager());
}
static void NativeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {
delete reinterpret_cast<GuardedAssetManager*>(ptr);
}
static void NativeSetApkAssets(JNIEnv* env, jclass /*clazz*/, jlong ptr,
jobjectArray apk_assets_array, jboolean invalidate_caches) {
ATRACE_NAME("AssetManager::SetApkAssets");
const jsize apk_assets_len = env->GetArrayLength(apk_assets_array);
std::vector<const ApkAssets*> apk_assets;
apk_assets.reserve(apk_assets_len);
for (jsize i = 0; i < apk_assets_len; i++) {
jobject obj = env->GetObjectArrayElement(apk_assets_array, i);
if (obj == nullptr) {
std::string msg = StringPrintf("ApkAssets at index %d is null", i);
jniThrowNullPointerException(env, msg.c_str());
return;
}
jlong apk_assets_native_ptr = env->GetLongField(obj, gApkAssetsFields.native_ptr);
if (env->ExceptionCheck()) {
return;
}
apk_assets.push_back(reinterpret_cast<const ApkAssets*>(apk_assets_native_ptr));
}
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
assetmanager->SetApkAssets(apk_assets, invalidate_caches);
}
static void NativeSetConfiguration(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint mcc, jint mnc,
jstring locale, jint orientation, jint touchscreen, jint density,
jint keyboard, jint keyboard_hidden, jint navigation,
jint screen_width, jint screen_height,
jint smallest_screen_width_dp, jint screen_width_dp,
jint screen_height_dp, jint screen_layout, jint ui_mode,
jint color_mode, jint major_version) {
ATRACE_NAME("AssetManager::SetConfiguration");
ResTable_config configuration;
memset(&configuration, 0, sizeof(configuration));
configuration.mcc = static_cast<uint16_t>(mcc);
configuration.mnc = static_cast<uint16_t>(mnc);
configuration.orientation = static_cast<uint8_t>(orientation);
configuration.touchscreen = static_cast<uint8_t>(touchscreen);
configuration.density = static_cast<uint16_t>(density);
configuration.keyboard = static_cast<uint8_t>(keyboard);
configuration.inputFlags = static_cast<uint8_t>(keyboard_hidden);
configuration.navigation = static_cast<uint8_t>(navigation);
configuration.screenWidth = static_cast<uint16_t>(screen_width);
configuration.screenHeight = static_cast<uint16_t>(screen_height);
configuration.smallestScreenWidthDp = static_cast<uint16_t>(smallest_screen_width_dp);
configuration.screenWidthDp = static_cast<uint16_t>(screen_width_dp);
configuration.screenHeightDp = static_cast<uint16_t>(screen_height_dp);
configuration.screenLayout = static_cast<uint8_t>(screen_layout);
configuration.uiMode = static_cast<uint8_t>(ui_mode);
configuration.colorMode = static_cast<uint8_t>(color_mode);
configuration.sdkVersion = static_cast<uint16_t>(major_version);
if (locale != nullptr) {
ScopedUtfChars locale_utf8(env, locale);
CHECK(locale_utf8.c_str() != nullptr);
configuration.setBcp47Locale(locale_utf8.c_str());
}
// Constants duplicated from Java class android.content.res.Configuration.
static const jint kScreenLayoutRoundMask = 0x300;
static const jint kScreenLayoutRoundShift = 8;
// In Java, we use a 32bit integer for screenLayout, while we only use an 8bit integer
// in C++. We must extract the round qualifier out of the Java screenLayout and put it
// into screenLayout2.
configuration.screenLayout2 =
static_cast<uint8_t>((screen_layout & kScreenLayoutRoundMask) >> kScreenLayoutRoundShift);
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
assetmanager->SetConfiguration(configuration);
}
static jobject NativeGetAssignedPackageIdentifiers(JNIEnv* env, jclass /*clazz*/, jlong ptr) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
jobject sparse_array =
env->NewObject(gSparseArrayOffsets.classObject, gSparseArrayOffsets.constructor);
if (sparse_array == nullptr) {
// An exception is pending.
return nullptr;
}
assetmanager->ForEachPackage([&](const std::string& package_name, uint8_t package_id) {
jstring jpackage_name = env->NewStringUTF(package_name.c_str());
if (jpackage_name == nullptr) {
// An exception is pending.
return;
}
env->CallVoidMethod(sparse_array, gSparseArrayOffsets.put, static_cast<jint>(package_id),
jpackage_name);
});
return sparse_array;
}
static jobjectArray NativeList(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring path) {
ScopedUtfChars path_utf8(env, path);
if (path_utf8.c_str() == nullptr) {
// This will throw NPE.
return nullptr;
}
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::unique_ptr<AssetDir> asset_dir =
assetmanager->OpenDir(path_utf8.c_str());
if (asset_dir == nullptr) {
jniThrowException(env, "java/io/FileNotFoundException", path_utf8.c_str());
return nullptr;
}
const size_t file_count = asset_dir->getFileCount();
jobjectArray array = env->NewObjectArray(file_count, g_stringClass, nullptr);
if (array == nullptr) {
return nullptr;
}
for (size_t i = 0; i < file_count; i++) {
jstring java_string = env->NewStringUTF(asset_dir->getFileName(i).string());
// Check for errors creating the strings (if malformed or no memory).
if (env->ExceptionCheck()) {
return nullptr;
}
env->SetObjectArrayElement(array, i, java_string);
// If we have a large amount of string in our array, we might overflow the
// local reference table of the VM.
env->DeleteLocalRef(java_string);
}
return array;
}
static jlong NativeOpenAsset(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring asset_path,
jint access_mode) {
ScopedUtfChars asset_path_utf8(env, asset_path);
if (asset_path_utf8.c_str() == nullptr) {
// This will throw NPE.
return 0;
}
ATRACE_NAME(base::StringPrintf("AssetManager::OpenAsset(%s)", asset_path_utf8.c_str()).c_str());
if (access_mode != Asset::ACCESS_UNKNOWN && access_mode != Asset::ACCESS_RANDOM &&
access_mode != Asset::ACCESS_STREAMING && access_mode != Asset::ACCESS_BUFFER) {
jniThrowException(env, "java/lang/IllegalArgumentException", "Bad access mode");
return 0;
}
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::unique_ptr<Asset> asset =
assetmanager->Open(asset_path_utf8.c_str(), static_cast<Asset::AccessMode>(access_mode));
if (!asset) {
jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
return 0;
}
return reinterpret_cast<jlong>(asset.release());
}
static jobject NativeOpenAssetFd(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring asset_path,
jlongArray out_offsets) {
ScopedUtfChars asset_path_utf8(env, asset_path);
if (asset_path_utf8.c_str() == nullptr) {
// This will throw NPE.
return nullptr;
}
ATRACE_NAME(base::StringPrintf("AssetManager::OpenAssetFd(%s)", asset_path_utf8.c_str()).c_str());
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::unique_ptr<Asset> asset = assetmanager->Open(asset_path_utf8.c_str(), Asset::ACCESS_RANDOM);
if (!asset) {
jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
return nullptr;
}
return ReturnParcelFileDescriptor(env, std::move(asset), out_offsets);
}
static jlong NativeOpenNonAsset(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint jcookie,
jstring asset_path, jint access_mode) {
ApkAssetsCookie cookie = JavaCookieToApkAssetsCookie(jcookie);
ScopedUtfChars asset_path_utf8(env, asset_path);
if (asset_path_utf8.c_str() == nullptr) {
// This will throw NPE.
return 0;
}
ATRACE_NAME(base::StringPrintf("AssetManager::OpenNonAsset(%s)", asset_path_utf8.c_str()).c_str());
if (access_mode != Asset::ACCESS_UNKNOWN && access_mode != Asset::ACCESS_RANDOM &&
access_mode != Asset::ACCESS_STREAMING && access_mode != Asset::ACCESS_BUFFER) {
jniThrowException(env, "java/lang/IllegalArgumentException", "Bad access mode");
return 0;
}
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::unique_ptr<Asset> asset;
if (cookie != kInvalidCookie) {
asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), cookie,
static_cast<Asset::AccessMode>(access_mode));
} else {
asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(),
static_cast<Asset::AccessMode>(access_mode));
}
if (!asset) {
jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
return 0;
}
return reinterpret_cast<jlong>(asset.release());
}
static jobject NativeOpenNonAssetFd(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint jcookie,
jstring asset_path, jlongArray out_offsets) {
ApkAssetsCookie cookie = JavaCookieToApkAssetsCookie(jcookie);
ScopedUtfChars asset_path_utf8(env, asset_path);
if (asset_path_utf8.c_str() == nullptr) {
// This will throw NPE.
return nullptr;
}
ATRACE_NAME(base::StringPrintf("AssetManager::OpenNonAssetFd(%s)", asset_path_utf8.c_str()).c_str());
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::unique_ptr<Asset> asset;
if (cookie != kInvalidCookie) {
asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), cookie, Asset::ACCESS_RANDOM);
} else {
asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), Asset::ACCESS_RANDOM);
}
if (!asset) {
jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
return nullptr;
}
return ReturnParcelFileDescriptor(env, std::move(asset), out_offsets);
}
static jlong NativeOpenXmlAsset(JNIEnv* env, jobject /*clazz*/, jlong ptr, jint jcookie,
jstring asset_path) {
ApkAssetsCookie cookie = JavaCookieToApkAssetsCookie(jcookie);
ScopedUtfChars asset_path_utf8(env, asset_path);
if (asset_path_utf8.c_str() == nullptr) {
// This will throw NPE.
return 0;
}
ATRACE_NAME(base::StringPrintf("AssetManager::OpenXmlAsset(%s)", asset_path_utf8.c_str()).c_str());
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::unique_ptr<Asset> asset;
if (cookie != kInvalidCookie) {
asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), cookie, Asset::ACCESS_RANDOM);
} else {
asset = assetmanager->OpenNonAsset(asset_path_utf8.c_str(), Asset::ACCESS_RANDOM, &cookie);
}
if (!asset) {
jniThrowException(env, "java/io/FileNotFoundException", asset_path_utf8.c_str());
return 0;
}
// May be nullptr.
const DynamicRefTable* dynamic_ref_table = assetmanager->GetDynamicRefTableForCookie(cookie);
std::unique_ptr<ResXMLTree> xml_tree = util::make_unique<ResXMLTree>(dynamic_ref_table);
status_t err = xml_tree->setTo(asset->getBuffer(true), asset->getLength(), true);
asset.reset();
if (err != NO_ERROR) {
jniThrowException(env, "java/io/FileNotFoundException", "Corrupt XML binary file");
return 0;
}
return reinterpret_cast<jlong>(xml_tree.release());
}
static jint NativeGetResourceValue(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid,
jshort density, jobject typed_value,
jboolean resolve_references) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
Res_value value;
ResTable_config selected_config;
uint32_t flags;
ApkAssetsCookie cookie =
assetmanager->GetResource(static_cast<uint32_t>(resid), false /*may_be_bag*/,
static_cast<uint16_t>(density), &value, &selected_config, &flags);
if (cookie == kInvalidCookie) {
return ApkAssetsCookieToJavaCookie(kInvalidCookie);
}
uint32_t ref = static_cast<uint32_t>(resid);
if (resolve_references) {
cookie = assetmanager->ResolveReference(cookie, &value, &selected_config, &flags, &ref);
if (cookie == kInvalidCookie) {
return ApkAssetsCookieToJavaCookie(kInvalidCookie);
}
}
return CopyValue(env, cookie, value, ref, flags, &selected_config, typed_value);
}
static jint NativeGetResourceBagValue(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid,
jint bag_entry_id, jobject typed_value) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
if (bag == nullptr) {
return ApkAssetsCookieToJavaCookie(kInvalidCookie);
}
uint32_t type_spec_flags = bag->type_spec_flags;
ApkAssetsCookie cookie = kInvalidCookie;
const Res_value* bag_value = nullptr;
for (const ResolvedBag::Entry& entry : bag) {
if (entry.key == static_cast<uint32_t>(bag_entry_id)) {
cookie = entry.cookie;
bag_value = &entry.value;
// Keep searching (the old implementation did that).
}
}
if (cookie == kInvalidCookie) {
return ApkAssetsCookieToJavaCookie(kInvalidCookie);
}
Res_value value = *bag_value;
uint32_t ref = static_cast<uint32_t>(resid);
ResTable_config selected_config;
cookie = assetmanager->ResolveReference(cookie, &value, &selected_config, &type_spec_flags, &ref);
if (cookie == kInvalidCookie) {
return ApkAssetsCookieToJavaCookie(kInvalidCookie);
}
return CopyValue(env, cookie, value, ref, type_spec_flags, nullptr, typed_value);
}
static jintArray NativeGetStyleAttributes(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
if (bag == nullptr) {
return nullptr;
}
jintArray array = env->NewIntArray(bag->entry_count);
if (env->ExceptionCheck()) {
return nullptr;
}
for (uint32_t i = 0; i < bag->entry_count; i++) {
jint attr_resid = bag->entries[i].key;
env->SetIntArrayRegion(array, i, 1, &attr_resid);
}
return array;
}
static jobjectArray NativeGetResourceStringArray(JNIEnv* env, jclass /*clazz*/, jlong ptr,
jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
if (bag == nullptr) {
return nullptr;
}
jobjectArray array = env->NewObjectArray(bag->entry_count, g_stringClass, nullptr);
if (array == nullptr) {
return nullptr;
}
for (uint32_t i = 0; i < bag->entry_count; i++) {
const ResolvedBag::Entry& entry = bag->entries[i];
// Resolve any references to their final value.
Res_value value = entry.value;
ResTable_config selected_config;
uint32_t flags;
uint32_t ref;
ApkAssetsCookie cookie =
assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
if (cookie == kInvalidCookie) {
return nullptr;
}
if (value.dataType == Res_value::TYPE_STRING) {
const ApkAssets* apk_assets = assetmanager->GetApkAssets()[cookie];
const ResStringPool* pool = apk_assets->GetLoadedArsc()->GetStringPool();
jstring java_string = nullptr;
size_t str_len;
const char* str_utf8 = pool->string8At(value.data, &str_len);
if (str_utf8 != nullptr) {
java_string = env->NewStringUTF(str_utf8);
} else {
const char16_t* str_utf16 = pool->stringAt(value.data, &str_len);
java_string = env->NewString(reinterpret_cast<const jchar*>(str_utf16), str_len);
}
// Check for errors creating the strings (if malformed or no memory).
if (env->ExceptionCheck()) {
return nullptr;
}
env->SetObjectArrayElement(array, i, java_string);
// If we have a large amount of string in our array, we might overflow the
// local reference table of the VM.
env->DeleteLocalRef(java_string);
}
}
return array;
}
static jintArray NativeGetResourceStringArrayInfo(JNIEnv* env, jclass /*clazz*/, jlong ptr,
jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
if (bag == nullptr) {
return nullptr;
}
jintArray array = env->NewIntArray(bag->entry_count * 2);
if (array == nullptr) {
return nullptr;
}
jint* buffer = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(array, nullptr));
if (buffer == nullptr) {
return nullptr;
}
for (size_t i = 0; i < bag->entry_count; i++) {
const ResolvedBag::Entry& entry = bag->entries[i];
Res_value value = entry.value;
ResTable_config selected_config;
uint32_t flags;
uint32_t ref;
ApkAssetsCookie cookie =
assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
if (cookie == kInvalidCookie) {
env->ReleasePrimitiveArrayCritical(array, buffer, JNI_ABORT);
return nullptr;
}
jint string_index = -1;
if (value.dataType == Res_value::TYPE_STRING) {
string_index = static_cast<jint>(value.data);
}
buffer[i * 2] = ApkAssetsCookieToJavaCookie(cookie);
buffer[(i * 2) + 1] = string_index;
}
env->ReleasePrimitiveArrayCritical(array, buffer, 0);
return array;
}
static jintArray NativeGetResourceIntArray(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
if (bag == nullptr) {
return nullptr;
}
jintArray array = env->NewIntArray(bag->entry_count);
if (array == nullptr) {
return nullptr;
}
jint* buffer = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(array, nullptr));
if (buffer == nullptr) {
return nullptr;
}
for (size_t i = 0; i < bag->entry_count; i++) {
const ResolvedBag::Entry& entry = bag->entries[i];
Res_value value = entry.value;
ResTable_config selected_config;
uint32_t flags;
uint32_t ref;
ApkAssetsCookie cookie =
assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
if (cookie == kInvalidCookie) {
env->ReleasePrimitiveArrayCritical(array, buffer, JNI_ABORT);
return nullptr;
}
if (value.dataType >= Res_value::TYPE_FIRST_INT && value.dataType <= Res_value::TYPE_LAST_INT) {
buffer[i] = static_cast<jint>(value.data);
}
}
env->ReleasePrimitiveArrayCritical(array, buffer, 0);
return array;
}
static jint NativeGetResourceArraySize(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr, jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
if (bag == nullptr) {
return -1;
}
return static_cast<jint>(bag->entry_count);
}
static jint NativeGetResourceArray(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid,
jintArray out_data) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
const ResolvedBag* bag = assetmanager->GetBag(static_cast<uint32_t>(resid));
if (bag == nullptr) {
return -1;
}
const jsize out_data_length = env->GetArrayLength(out_data);
if (env->ExceptionCheck()) {
return -1;
}
if (static_cast<jsize>(bag->entry_count) > out_data_length * STYLE_NUM_ENTRIES) {
jniThrowException(env, "java/lang/IllegalArgumentException", "Input array is not large enough");
return -1;
}
jint* buffer = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_data, nullptr));
if (buffer == nullptr) {
return -1;
}
jint* cursor = buffer;
for (size_t i = 0; i < bag->entry_count; i++) {
const ResolvedBag::Entry& entry = bag->entries[i];
Res_value value = entry.value;
ResTable_config selected_config;
selected_config.density = 0;
uint32_t flags = bag->type_spec_flags;
uint32_t ref = 0;
ApkAssetsCookie cookie =
assetmanager->ResolveReference(entry.cookie, &value, &selected_config, &flags, &ref);
if (cookie == kInvalidCookie) {
env->ReleasePrimitiveArrayCritical(out_data, buffer, JNI_ABORT);
return -1;
}
// Deal with the special @null value -- it turns back to TYPE_NULL.
if (value.dataType == Res_value::TYPE_REFERENCE && value.data == 0) {
value.dataType = Res_value::TYPE_NULL;
value.data = Res_value::DATA_NULL_UNDEFINED;
}
cursor[STYLE_TYPE] = static_cast<jint>(value.dataType);
cursor[STYLE_DATA] = static_cast<jint>(value.data);
cursor[STYLE_ASSET_COOKIE] = ApkAssetsCookieToJavaCookie(cookie);
cursor[STYLE_RESOURCE_ID] = static_cast<jint>(ref);
cursor[STYLE_CHANGING_CONFIGURATIONS] = static_cast<jint>(flags);
cursor[STYLE_DENSITY] = static_cast<jint>(selected_config.density);
cursor += STYLE_NUM_ENTRIES;
}
env->ReleasePrimitiveArrayCritical(out_data, buffer, 0);
return static_cast<jint>(bag->entry_count);
}
static jint NativeGetResourceIdentifier(JNIEnv* env, jclass /*clazz*/, jlong ptr, jstring name,
jstring def_type, jstring def_package) {
ScopedUtfChars name_utf8(env, name);
if (name_utf8.c_str() == nullptr) {
// This will throw NPE.
return 0;
}
std::string type;
if (def_type != nullptr) {
ScopedUtfChars type_utf8(env, def_type);
CHECK(type_utf8.c_str() != nullptr);
type = type_utf8.c_str();
}
std::string package;
if (def_package != nullptr) {
ScopedUtfChars package_utf8(env, def_package);
CHECK(package_utf8.c_str() != nullptr);
package = package_utf8.c_str();
}
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
return static_cast<jint>(assetmanager->GetResourceId(name_utf8.c_str(), type, package));
}
static jstring NativeGetResourceName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
AssetManager2::ResourceName name;
if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
return nullptr;
}
std::string result;
if (name.package != nullptr) {
result.append(name.package, name.package_len);
}
if (name.type != nullptr || name.type16 != nullptr) {
if (!result.empty()) {
result += ":";
}
if (name.type != nullptr) {
result.append(name.type, name.type_len);
} else {
result += util::Utf16ToUtf8(StringPiece16(name.type16, name.type_len));
}
}
if (name.entry != nullptr || name.entry16 != nullptr) {
if (!result.empty()) {
result += "/";
}
if (name.entry != nullptr) {
result.append(name.entry, name.entry_len);
} else {
result += util::Utf16ToUtf8(StringPiece16(name.entry16, name.entry_len));
}
}
return env->NewStringUTF(result.c_str());
}
static jstring NativeGetResourcePackageName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
AssetManager2::ResourceName name;
if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
return nullptr;
}
if (name.package != nullptr) {
return env->NewStringUTF(name.package);
}
return nullptr;
}
static jstring NativeGetResourceTypeName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
AssetManager2::ResourceName name;
if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
return nullptr;
}
if (name.type != nullptr) {
return env->NewStringUTF(name.type);
} else if (name.type16 != nullptr) {
return env->NewString(reinterpret_cast<const jchar*>(name.type16), name.type_len);
}
return nullptr;
}
static jstring NativeGetResourceEntryName(JNIEnv* env, jclass /*clazz*/, jlong ptr, jint resid) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
AssetManager2::ResourceName name;
if (!assetmanager->GetResourceName(static_cast<uint32_t>(resid), &name)) {
return nullptr;
}
if (name.entry != nullptr) {
return env->NewStringUTF(name.entry);
} else if (name.entry16 != nullptr) {
return env->NewString(reinterpret_cast<const jchar*>(name.entry16), name.entry_len);
}
return nullptr;
}
static jobjectArray NativeGetLocales(JNIEnv* env, jclass /*class*/, jlong ptr,
jboolean exclude_system) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::set<std::string> locales =
assetmanager->GetResourceLocales(exclude_system, true /*merge_equivalent_languages*/);
jobjectArray array = env->NewObjectArray(locales.size(), g_stringClass, nullptr);
if (array == nullptr) {
return nullptr;
}
size_t idx = 0;
for (const std::string& locale : locales) {
jstring java_string = env->NewStringUTF(locale.c_str());
if (java_string == nullptr) {
return nullptr;
}
env->SetObjectArrayElement(array, idx++, java_string);
env->DeleteLocalRef(java_string);
}
return array;
}
static jobject ConstructConfigurationObject(JNIEnv* env, const ResTable_config& config) {
jobject result =
env->NewObject(gConfigurationOffsets.classObject, gConfigurationOffsets.constructor);
if (result == nullptr) {
return nullptr;
}
env->SetIntField(result, gConfigurationOffsets.mSmallestScreenWidthDpOffset,
config.smallestScreenWidthDp);
env->SetIntField(result, gConfigurationOffsets.mScreenWidthDpOffset, config.screenWidthDp);
env->SetIntField(result, gConfigurationOffsets.mScreenHeightDpOffset, config.screenHeightDp);
return result;
}
static jobjectArray NativeGetSizeConfigurations(JNIEnv* env, jclass /*clazz*/, jlong ptr) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
std::set<ResTable_config> configurations =
assetmanager->GetResourceConfigurations(true /*exclude_system*/, false /*exclude_mipmap*/);
jobjectArray array =
env->NewObjectArray(configurations.size(), gConfigurationOffsets.classObject, nullptr);
if (array == nullptr) {
return nullptr;
}
size_t idx = 0;
for (const ResTable_config& configuration : configurations) {
jobject java_configuration = ConstructConfigurationObject(env, configuration);
if (java_configuration == nullptr) {
return nullptr;
}
env->SetObjectArrayElement(array, idx++, java_configuration);
env->DeleteLocalRef(java_configuration);
}
return array;
}
static void NativeApplyStyle(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
jint def_style_attr, jint def_style_resid, jlong xml_parser_ptr,
jintArray java_attrs, jlong out_values_ptr, jlong out_indices_ptr) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
CHECK(theme->GetAssetManager() == &(*assetmanager));
(void) assetmanager;
ResXMLParser* xml_parser = reinterpret_cast<ResXMLParser*>(xml_parser_ptr);
uint32_t* out_values = reinterpret_cast<uint32_t*>(out_values_ptr);
uint32_t* out_indices = reinterpret_cast<uint32_t*>(out_indices_ptr);
jsize attrs_len = env->GetArrayLength(java_attrs);
jint* attrs = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_attrs, nullptr));
if (attrs == nullptr) {
return;
}
ApplyStyle(theme, xml_parser, static_cast<uint32_t>(def_style_attr),
static_cast<uint32_t>(def_style_resid), reinterpret_cast<uint32_t*>(attrs), attrs_len,
out_values, out_indices);
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
}
static jboolean NativeResolveAttrs(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
jint def_style_attr, jint def_style_resid, jintArray java_values,
jintArray java_attrs, jintArray out_java_values,
jintArray out_java_indices) {
const jsize attrs_len = env->GetArrayLength(java_attrs);
const jsize out_values_len = env->GetArrayLength(out_java_values);
if (out_values_len < (attrs_len * STYLE_NUM_ENTRIES)) {
jniThrowException(env, "java/lang/IndexOutOfBoundsException", "outValues too small");
return JNI_FALSE;
}
jint* attrs = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_attrs, nullptr));
if (attrs == nullptr) {
return JNI_FALSE;
}
jint* values = nullptr;
jsize values_len = 0;
if (java_values != nullptr) {
values_len = env->GetArrayLength(java_values);
values = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_values, nullptr));
if (values == nullptr) {
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
return JNI_FALSE;
}
}
jint* out_values =
reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_values, nullptr));
if (out_values == nullptr) {
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
if (values != nullptr) {
env->ReleasePrimitiveArrayCritical(java_values, values, JNI_ABORT);
}
return JNI_FALSE;
}
jint* out_indices = nullptr;
if (out_java_indices != nullptr) {
jsize out_indices_len = env->GetArrayLength(out_java_indices);
if (out_indices_len > attrs_len) {
out_indices =
reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_indices, nullptr));
if (out_indices == nullptr) {
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
if (values != nullptr) {
env->ReleasePrimitiveArrayCritical(java_values, values, JNI_ABORT);
}
env->ReleasePrimitiveArrayCritical(out_java_values, out_values, JNI_ABORT);
return JNI_FALSE;
}
}
}
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
CHECK(theme->GetAssetManager() == &(*assetmanager));
(void) assetmanager;
bool result = ResolveAttrs(
theme, static_cast<uint32_t>(def_style_attr), static_cast<uint32_t>(def_style_resid),
reinterpret_cast<uint32_t*>(values), values_len, reinterpret_cast<uint32_t*>(attrs),
attrs_len, reinterpret_cast<uint32_t*>(out_values), reinterpret_cast<uint32_t*>(out_indices));
if (out_indices != nullptr) {
env->ReleasePrimitiveArrayCritical(out_java_indices, out_indices, 0);
}
env->ReleasePrimitiveArrayCritical(out_java_values, out_values, 0);
if (values != nullptr) {
env->ReleasePrimitiveArrayCritical(java_values, values, JNI_ABORT);
}
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
return result ? JNI_TRUE : JNI_FALSE;
}
static jboolean NativeRetrieveAttributes(JNIEnv* env, jclass /*clazz*/, jlong ptr,
jlong xml_parser_ptr, jintArray java_attrs,
jintArray out_java_values, jintArray out_java_indices) {
const jsize attrs_len = env->GetArrayLength(java_attrs);
const jsize out_values_len = env->GetArrayLength(out_java_values);
if (out_values_len < (attrs_len * STYLE_NUM_ENTRIES)) {
jniThrowException(env, "java/lang/IndexOutOfBoundsException", "outValues too small");
return JNI_FALSE;
}
jint* attrs = reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(java_attrs, nullptr));
if (attrs == nullptr) {
return JNI_FALSE;
}
jint* out_values =
reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_values, nullptr));
if (out_values == nullptr) {
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
return JNI_FALSE;
}
jint* out_indices = nullptr;
if (out_java_indices != nullptr) {
jsize out_indices_len = env->GetArrayLength(out_java_indices);
if (out_indices_len > attrs_len) {
out_indices =
reinterpret_cast<jint*>(env->GetPrimitiveArrayCritical(out_java_indices, nullptr));
if (out_indices == nullptr) {
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
env->ReleasePrimitiveArrayCritical(out_java_values, out_values, JNI_ABORT);
return JNI_FALSE;
}
}
}
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
ResXMLParser* xml_parser = reinterpret_cast<ResXMLParser*>(xml_parser_ptr);
bool result = RetrieveAttributes(assetmanager.get(), xml_parser,
reinterpret_cast<uint32_t*>(attrs), attrs_len,
reinterpret_cast<uint32_t*>(out_values),
reinterpret_cast<uint32_t*>(out_indices));
if (out_indices != nullptr) {
env->ReleasePrimitiveArrayCritical(out_java_indices, out_indices, 0);
}
env->ReleasePrimitiveArrayCritical(out_java_values, out_values, 0);
env->ReleasePrimitiveArrayCritical(java_attrs, attrs, JNI_ABORT);
return result ? JNI_TRUE : JNI_FALSE;
}
static jlong NativeThemeCreate(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
return reinterpret_cast<jlong>(assetmanager->NewTheme().release());
}
static void NativeThemeDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong theme_ptr) {
delete reinterpret_cast<Theme*>(theme_ptr);
}
static void NativeThemeApplyStyle(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
jint resid, jboolean force) {
// AssetManager is accessed via the theme, so grab an explicit lock here.
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
CHECK(theme->GetAssetManager() == &(*assetmanager));
(void) assetmanager;
theme->ApplyStyle(static_cast<uint32_t>(resid), force);
// TODO(adamlesinski): Consider surfacing exception when result is failure.
// CTS currently expects no exceptions from this method.
// std::string error_msg = StringPrintf("Failed to apply style 0x%08x to theme", resid);
// jniThrowException(env, "java/lang/IllegalArgumentException", error_msg.c_str());
}
static void NativeThemeCopy(JNIEnv* env, jclass /*clazz*/, jlong dst_theme_ptr,
jlong src_theme_ptr) {
Theme* dst_theme = reinterpret_cast<Theme*>(dst_theme_ptr);
Theme* src_theme = reinterpret_cast<Theme*>(src_theme_ptr);
if (!dst_theme->SetTo(*src_theme)) {
jniThrowException(env, "java/lang/IllegalArgumentException",
"Themes are from different AssetManagers");
}
}
static void NativeThemeClear(JNIEnv* /*env*/, jclass /*clazz*/, jlong theme_ptr) {
reinterpret_cast<Theme*>(theme_ptr)->Clear();
}
static jint NativeThemeGetAttributeValue(JNIEnv* env, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
jint resid, jobject typed_value,
jboolean resolve_references) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
CHECK(theme->GetAssetManager() == &(*assetmanager));
(void) assetmanager;
Res_value value;
uint32_t flags;
ApkAssetsCookie cookie = theme->GetAttribute(static_cast<uint32_t>(resid), &value, &flags);
if (cookie == kInvalidCookie) {
return ApkAssetsCookieToJavaCookie(kInvalidCookie);
}
uint32_t ref = 0u;
if (resolve_references) {
ResTable_config selected_config;
cookie =
theme->GetAssetManager()->ResolveReference(cookie, &value, &selected_config, &flags, &ref);
if (cookie == kInvalidCookie) {
return ApkAssetsCookieToJavaCookie(kInvalidCookie);
}
}
return CopyValue(env, cookie, value, ref, flags, nullptr, typed_value);
}
static void NativeThemeDump(JNIEnv* /*env*/, jclass /*clazz*/, jlong ptr, jlong theme_ptr,
jint priority, jstring tag, jstring prefix) {
ScopedLock<AssetManager2> assetmanager(AssetManagerFromLong(ptr));
Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
CHECK(theme->GetAssetManager() == &(*assetmanager));
(void) assetmanager;
(void) theme;
(void) priority;
(void) tag;
(void) prefix;
}
static jint NativeThemeGetChangingConfigurations(JNIEnv* /*env*/, jclass /*clazz*/,
jlong theme_ptr) {
Theme* theme = reinterpret_cast<Theme*>(theme_ptr);
return static_cast<jint>(theme->GetChangingConfigurations());
}
static void NativeAssetDestroy(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
delete reinterpret_cast<Asset*>(asset_ptr);
}
static jint NativeAssetReadChar(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
uint8_t b;
ssize_t res = asset->read(&b, sizeof(b));
return res == sizeof(b) ? static_cast<jint>(b) : -1;
}
static jint NativeAssetRead(JNIEnv* env, jclass /*clazz*/, jlong asset_ptr, jbyteArray java_buffer,
jint offset, jint len) {
if (len == 0) {
return 0;
}
jsize buffer_len = env->GetArrayLength(java_buffer);
if (offset < 0 || offset >= buffer_len || len < 0 || len > buffer_len ||
offset > buffer_len - len) {
jniThrowException(env, "java/lang/IndexOutOfBoundsException", "");
return -1;
}
ScopedByteArrayRW byte_array(env, java_buffer);
if (byte_array.get() == nullptr) {
return -1;
}
Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
ssize_t res = asset->read(byte_array.get() + offset, len);
if (res < 0) {
jniThrowException(env, "java/io/IOException", "");
return -1;
}
return res > 0 ? static_cast<jint>(res) : -1;
}
static jlong NativeAssetSeek(JNIEnv* env, jclass /*clazz*/, jlong asset_ptr, jlong offset,
jint whence) {
Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
return static_cast<jlong>(asset->seek(
static_cast<off64_t>(offset), (whence > 0 ? SEEK_END : (whence < 0 ? SEEK_SET : SEEK_CUR))));
}
static jlong NativeAssetGetLength(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
return static_cast<jlong>(asset->getLength());
}
static jlong NativeAssetGetRemainingLength(JNIEnv* /*env*/, jclass /*clazz*/, jlong asset_ptr) {
Asset* asset = reinterpret_cast<Asset*>(asset_ptr);
return static_cast<jlong>(asset->getRemainingLength());
}
// ----------------------------------------------------------------------------
// JNI registration.
static const JNINativeMethod gAssetManagerMethods[] = {
// AssetManager setup methods.
{"nativeCreate", "()J", (void*)NativeCreate},
{"nativeDestroy", "(J)V", (void*)NativeDestroy},
{"nativeSetApkAssets", "(J[Landroid/content/res/ApkAssets;Z)V", (void*)NativeSetApkAssets},
{"nativeSetConfiguration", "(JIILjava/lang/String;IIIIIIIIIIIIIII)V",
(void*)NativeSetConfiguration},
{"nativeGetAssignedPackageIdentifiers", "(J)Landroid/util/SparseArray;",
(void*)NativeGetAssignedPackageIdentifiers},
// AssetManager file methods.
{"nativeList", "(JLjava/lang/String;)[Ljava/lang/String;", (void*)NativeList},
{"nativeOpenAsset", "(JLjava/lang/String;I)J", (void*)NativeOpenAsset},
{"nativeOpenAssetFd", "(JLjava/lang/String;[J)Landroid/os/ParcelFileDescriptor;",
(void*)NativeOpenAssetFd},
{"nativeOpenNonAsset", "(JILjava/lang/String;I)J", (void*)NativeOpenNonAsset},
{"nativeOpenNonAssetFd", "(JILjava/lang/String;[J)Landroid/os/ParcelFileDescriptor;",
(void*)NativeOpenNonAssetFd},
{"nativeOpenXmlAsset", "(JILjava/lang/String;)J", (void*)NativeOpenXmlAsset},
// AssetManager resource methods.
{"nativeGetResourceValue", "(JISLandroid/util/TypedValue;Z)I", (void*)NativeGetResourceValue},
{"nativeGetResourceBagValue", "(JIILandroid/util/TypedValue;)I",
(void*)NativeGetResourceBagValue},
{"nativeGetStyleAttributes", "(JI)[I", (void*)NativeGetStyleAttributes},
{"nativeGetResourceStringArray", "(JI)[Ljava/lang/String;",
(void*)NativeGetResourceStringArray},
{"nativeGetResourceStringArrayInfo", "(JI)[I", (void*)NativeGetResourceStringArrayInfo},
{"nativeGetResourceIntArray", "(JI)[I", (void*)NativeGetResourceIntArray},
{"nativeGetResourceArraySize", "(JI)I", (void*)NativeGetResourceArraySize},
{"nativeGetResourceArray", "(JI[I)I", (void*)NativeGetResourceArray},
// AssetManager resource name/ID methods.
{"nativeGetResourceIdentifier", "(JLjava/lang/String;Ljava/lang/String;Ljava/lang/String;)I",
(void*)NativeGetResourceIdentifier},
{"nativeGetResourceName", "(JI)Ljava/lang/String;", (void*)NativeGetResourceName},
{"nativeGetResourcePackageName", "(JI)Ljava/lang/String;", (void*)NativeGetResourcePackageName},
{"nativeGetResourceTypeName", "(JI)Ljava/lang/String;", (void*)NativeGetResourceTypeName},
{"nativeGetResourceEntryName", "(JI)Ljava/lang/String;", (void*)NativeGetResourceEntryName},
{"nativeGetLocales", "(JZ)[Ljava/lang/String;", (void*)NativeGetLocales},
{"nativeGetSizeConfigurations", "(J)[Landroid/content/res/Configuration;",
(void*)NativeGetSizeConfigurations},
// Style attribute related methods.
{"nativeApplyStyle", "(JJIIJ[IJJ)V", (void*)NativeApplyStyle},
{"nativeResolveAttrs", "(JJII[I[I[I[I)Z", (void*)NativeResolveAttrs},
{"nativeRetrieveAttributes", "(JJ[I[I[I)Z", (void*)NativeRetrieveAttributes},
// Theme related methods.
{"nativeThemeCreate", "(J)J", (void*)NativeThemeCreate},
{"nativeThemeDestroy", "(J)V", (void*)NativeThemeDestroy},
{"nativeThemeApplyStyle", "(JJIZ)V", (void*)NativeThemeApplyStyle},
{"nativeThemeCopy", "(JJ)V", (void*)NativeThemeCopy},
{"nativeThemeClear", "(J)V", (void*)NativeThemeClear},
{"nativeThemeGetAttributeValue", "(JJILandroid/util/TypedValue;Z)I",
(void*)NativeThemeGetAttributeValue},
{"nativeThemeDump", "(JJILjava/lang/String;Ljava/lang/String;)V", (void*)NativeThemeDump},
{"nativeThemeGetChangingConfigurations", "(J)I", (void*)NativeThemeGetChangingConfigurations},
// AssetInputStream methods.
{"nativeAssetDestroy", "(J)V", (void*)NativeAssetDestroy},
{"nativeAssetReadChar", "(J)I", (void*)NativeAssetReadChar},
{"nativeAssetRead", "(J[BII)I", (void*)NativeAssetRead},
{"nativeAssetSeek", "(JJI)J", (void*)NativeAssetSeek},
{"nativeAssetGetLength", "(J)J", (void*)NativeAssetGetLength},
{"nativeAssetGetRemainingLength", "(J)J", (void*)NativeAssetGetRemainingLength},
// System/idmap related methods.
{"nativeVerifySystemIdmaps", "()V", (void*)NativeVerifySystemIdmaps},
// Global management/debug methods.
{"getGlobalAssetCount", "()I", (void*)NativeGetGlobalAssetCount},
{"getAssetAllocations", "()Ljava/lang/String;", (void*)NativeGetAssetAllocations},
{"getGlobalAssetManagerCount", "()I", (void*)NativeGetGlobalAssetManagerCount},
};
int register_android_content_AssetManager(JNIEnv* env) {
jclass apk_assets_class = FindClassOrDie(env, "android/content/res/ApkAssets");
gApkAssetsFields.native_ptr = GetFieldIDOrDie(env, apk_assets_class, "mNativePtr", "J");
jclass typedValue = FindClassOrDie(env, "android/util/TypedValue");
gTypedValueOffsets.mType = GetFieldIDOrDie(env, typedValue, "type", "I");
gTypedValueOffsets.mData = GetFieldIDOrDie(env, typedValue, "data", "I");
gTypedValueOffsets.mString =
GetFieldIDOrDie(env, typedValue, "string", "Ljava/lang/CharSequence;");
gTypedValueOffsets.mAssetCookie = GetFieldIDOrDie(env, typedValue, "assetCookie", "I");
gTypedValueOffsets.mResourceId = GetFieldIDOrDie(env, typedValue, "resourceId", "I");
gTypedValueOffsets.mChangingConfigurations =
GetFieldIDOrDie(env, typedValue, "changingConfigurations", "I");
gTypedValueOffsets.mDensity = GetFieldIDOrDie(env, typedValue, "density", "I");
jclass assetFd = FindClassOrDie(env, "android/content/res/AssetFileDescriptor");
gAssetFileDescriptorOffsets.mFd =
GetFieldIDOrDie(env, assetFd, "mFd", "Landroid/os/ParcelFileDescriptor;");
gAssetFileDescriptorOffsets.mStartOffset = GetFieldIDOrDie(env, assetFd, "mStartOffset", "J");
gAssetFileDescriptorOffsets.mLength = GetFieldIDOrDie(env, assetFd, "mLength", "J");
jclass assetManager = FindClassOrDie(env, "android/content/res/AssetManager");
gAssetManagerOffsets.mObject = GetFieldIDOrDie(env, assetManager, "mObject", "J");
jclass stringClass = FindClassOrDie(env, "java/lang/String");
g_stringClass = MakeGlobalRefOrDie(env, stringClass);
jclass sparseArrayClass = FindClassOrDie(env, "android/util/SparseArray");
gSparseArrayOffsets.classObject = MakeGlobalRefOrDie(env, sparseArrayClass);
gSparseArrayOffsets.constructor =
GetMethodIDOrDie(env, gSparseArrayOffsets.classObject, "<init>", "()V");
gSparseArrayOffsets.put =
GetMethodIDOrDie(env, gSparseArrayOffsets.classObject, "put", "(ILjava/lang/Object;)V");
jclass configurationClass = FindClassOrDie(env, "android/content/res/Configuration");
gConfigurationOffsets.classObject = MakeGlobalRefOrDie(env, configurationClass);
gConfigurationOffsets.constructor = GetMethodIDOrDie(env, configurationClass, "<init>", "()V");
gConfigurationOffsets.mSmallestScreenWidthDpOffset =
GetFieldIDOrDie(env, configurationClass, "smallestScreenWidthDp", "I");
gConfigurationOffsets.mScreenWidthDpOffset =
GetFieldIDOrDie(env, configurationClass, "screenWidthDp", "I");
gConfigurationOffsets.mScreenHeightDpOffset =
GetFieldIDOrDie(env, configurationClass, "screenHeightDp", "I");
return RegisterMethodsOrDie(env, "android/content/res/AssetManager", gAssetManagerMethods,
NELEM(gAssetManagerMethods));
}
}; // namespace android