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/*
* Copyright (C) 2018 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.
*/
#include "idmap2/ResourceUtils.h"
#include <memory>
#include <string>
#include "androidfw/StringPiece.h"
#include "androidfw/Util.h"
#include "idmap2/Result.h"
#include "idmap2/Xml.h"
#include "idmap2/ZipFile.h"
using android::StringPiece16;
using android::idmap2::Result;
using android::idmap2::Xml;
using android::idmap2::ZipFile;
using android::util::Utf16ToUtf8;
namespace android::idmap2::utils {
Result<std::string> ResToTypeEntryName(const AssetManager2& am, ResourceId resid) {
AssetManager2::ResourceName name;
if (!am.GetResourceName(resid, &name)) {
return Error("no resource 0x%08x in asset manager", resid);
}
std::string out;
if (name.type != nullptr) {
out.append(name.type, name.type_len);
} else {
out += Utf16ToUtf8(StringPiece16(name.type16, name.type_len));
}
out.append("/");
if (name.entry != nullptr) {
out.append(name.entry, name.entry_len);
} else {
out += Utf16ToUtf8(StringPiece16(name.entry16, name.entry_len));
}
return out;
}
Result<OverlayManifestInfo> ExtractOverlayManifestInfo(const std::string& path,
bool assert_overlay) {
std::unique_ptr<const ZipFile> zip = ZipFile::Open(path);
if (!zip) {
return Error("failed to open %s as a zip file", path.c_str());
}
std::unique_ptr<const MemoryChunk> entry = zip->Uncompress("AndroidManifest.xml");
if (!entry) {
return Error("failed to uncompress AndroidManifest.xml from %s", path.c_str());
}
std::unique_ptr<const Xml> xml = Xml::Create(entry->buf, entry->size);
if (!xml) {
return Error("failed to parse AndroidManifest.xml from %s", path.c_str());
}
OverlayManifestInfo info{};
const auto tag = xml->FindTag("overlay");
if (!tag) {
if (assert_overlay) {
return Error("<overlay> missing from AndroidManifest.xml of %s", path.c_str());
}
return info;
}
auto iter = tag->find("targetPackage");
if (iter == tag->end()) {
if (assert_overlay) {
return Error("android:targetPackage missing from <overlay> of %s", path.c_str());
}
} else {
info.target_package = iter->second;
}
iter = tag->find("targetName");
if (iter != tag->end()) {
info.target_name = iter->second;
}
iter = tag->find("isStatic");
if (iter != tag->end()) {
info.is_static = std::stoul(iter->second) != 0U;
}
iter = tag->find("priority");
if (iter != tag->end()) {
info.priority = std::stoi(iter->second);
}
return info;
}
} // namespace android::idmap2::utils
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