| /* |
| * Copyright (C) 2015 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 "BinaryResourceParser.h" |
| #include "Logger.h" |
| #include "ResChunkPullParser.h" |
| #include "Resolver.h" |
| #include "ResourceParser.h" |
| #include "ResourceTable.h" |
| #include "ResourceTypeExtensions.h" |
| #include "ResourceValues.h" |
| #include "Source.h" |
| #include "Util.h" |
| |
| #include <androidfw/ResourceTypes.h> |
| #include <androidfw/TypeWrappers.h> |
| #include <map> |
| #include <string> |
| |
| namespace aapt { |
| |
| using namespace android; |
| |
| /* |
| * Visitor that converts a reference's resource ID to a resource name, |
| * given a mapping from resource ID to resource name. |
| */ |
| struct ReferenceIdToNameVisitor : ValueVisitor { |
| ReferenceIdToNameVisitor(const std::shared_ptr<IResolver>& resolver, |
| std::map<ResourceId, ResourceName>* cache) : |
| mResolver(resolver), mCache(cache) { |
| } |
| |
| void visit(Reference& reference, ValueVisitorArgs&) override { |
| idToName(reference); |
| } |
| |
| void visit(Attribute& attr, ValueVisitorArgs&) override { |
| for (auto& entry : attr.symbols) { |
| idToName(entry.symbol); |
| } |
| } |
| |
| void visit(Style& style, ValueVisitorArgs&) override { |
| if (style.parent.id.isValid()) { |
| idToName(style.parent); |
| } |
| |
| for (auto& entry : style.entries) { |
| idToName(entry.key); |
| entry.value->accept(*this, {}); |
| } |
| } |
| |
| void visit(Styleable& styleable, ValueVisitorArgs&) override { |
| for (auto& attr : styleable.entries) { |
| idToName(attr); |
| } |
| } |
| |
| void visit(Array& array, ValueVisitorArgs&) override { |
| for (auto& item : array.items) { |
| item->accept(*this, {}); |
| } |
| } |
| |
| void visit(Plural& plural, ValueVisitorArgs&) override { |
| for (auto& item : plural.values) { |
| if (item) { |
| item->accept(*this, {}); |
| } |
| } |
| } |
| |
| private: |
| void idToName(Reference& reference) { |
| if (!reference.id.isValid()) { |
| return; |
| } |
| |
| auto cacheIter = mCache->find(reference.id); |
| if (cacheIter != mCache->end()) { |
| reference.name = cacheIter->second; |
| reference.id = 0; |
| } else { |
| Maybe<ResourceName> result = mResolver->findName(reference.id); |
| if (result) { |
| reference.name = result.value(); |
| |
| // Add to cache. |
| mCache->insert({reference.id, reference.name}); |
| |
| reference.id = 0; |
| } |
| } |
| } |
| |
| std::shared_ptr<IResolver> mResolver; |
| std::map<ResourceId, ResourceName>* mCache; |
| }; |
| |
| |
| BinaryResourceParser::BinaryResourceParser(const std::shared_ptr<ResourceTable>& table, |
| const std::shared_ptr<IResolver>& resolver, |
| const Source& source, |
| const std::u16string& defaultPackage, |
| const void* data, |
| size_t len) : |
| mTable(table), mResolver(resolver), mSource(source), mDefaultPackage(defaultPackage), |
| mData(data), mDataLen(len) { |
| } |
| |
| bool BinaryResourceParser::parse() { |
| ResChunkPullParser parser(mData, mDataLen); |
| |
| bool error = false; |
| while(ResChunkPullParser::isGoodEvent(parser.next())) { |
| if (parser.getChunk()->type != android::RES_TABLE_TYPE) { |
| Logger::warn(mSource) |
| << "unknown chunk of type '" |
| << parser.getChunk()->type |
| << "'." |
| << std::endl; |
| continue; |
| } |
| |
| error |= !parseTable(parser.getChunk()); |
| } |
| |
| if (parser.getEvent() == ResChunkPullParser::Event::BadDocument) { |
| Logger::error(mSource) |
| << "bad document: " |
| << parser.getLastError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| return !error; |
| } |
| |
| bool BinaryResourceParser::getSymbol(const void* data, ResourceNameRef* outSymbol) { |
| if (!mSymbolEntries || mSymbolEntryCount == 0) { |
| return false; |
| } |
| |
| if (reinterpret_cast<uintptr_t>(data) < reinterpret_cast<uintptr_t>(mData)) { |
| return false; |
| } |
| |
| // We only support 32 bit offsets right now. |
| const uintptr_t offset = reinterpret_cast<uintptr_t>(data) - |
| reinterpret_cast<uintptr_t>(mData); |
| if (offset > std::numeric_limits<uint32_t>::max()) { |
| return false; |
| } |
| |
| for (size_t i = 0; i < mSymbolEntryCount; i++) { |
| if (mSymbolEntries[i].offset == offset) { |
| // This offset is a symbol! |
| const StringPiece16 str = util::getString(mSymbolPool, |
| mSymbolEntries[i].stringIndex); |
| StringPiece16 typeStr; |
| ResourceParser::extractResourceName(str, &outSymbol->package, &typeStr, |
| &outSymbol->entry); |
| const ResourceType* type = parseResourceType(typeStr); |
| if (!type) { |
| return false; |
| } |
| if (outSymbol->package.empty()) { |
| outSymbol->package = mTable->getPackage(); |
| } |
| outSymbol->type = *type; |
| |
| // Since we scan the symbol table in order, we can start looking for the |
| // next symbol from this point. |
| mSymbolEntryCount -= i + 1; |
| mSymbolEntries += i + 1; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| bool BinaryResourceParser::parseSymbolTable(const ResChunk_header* chunk) { |
| const SymbolTable_header* symbolTableHeader = convertTo<SymbolTable_header>(chunk); |
| if (!symbolTableHeader) { |
| Logger::error(mSource) |
| << "could not parse chunk as SymbolTable_header." |
| << std::endl; |
| return false; |
| } |
| |
| const size_t entrySizeBytes = symbolTableHeader->count * sizeof(SymbolTable_entry); |
| if (entrySizeBytes > getChunkDataLen(symbolTableHeader->header)) { |
| Logger::error(mSource) |
| << "entries extend beyond chunk." |
| << std::endl; |
| return false; |
| } |
| |
| mSymbolEntries = reinterpret_cast<const SymbolTable_entry*>( |
| getChunkData(symbolTableHeader->header)); |
| mSymbolEntryCount = symbolTableHeader->count; |
| |
| ResChunkPullParser parser(getChunkData(symbolTableHeader->header) + entrySizeBytes, |
| getChunkDataLen(symbolTableHeader->header) - entrySizeBytes); |
| if (!ResChunkPullParser::isGoodEvent(parser.next())) { |
| Logger::error(mSource) |
| << "failed to parse chunk: " |
| << parser.getLastError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| |
| if (parser.getChunk()->type != android::RES_STRING_POOL_TYPE) { |
| Logger::error(mSource) |
| << "expected Symbol string pool." |
| << std::endl; |
| return false; |
| } |
| |
| if (mSymbolPool.setTo(parser.getChunk(), parser.getChunk()->size) != NO_ERROR) { |
| Logger::error(mSource) |
| << "failed to parse symbol string pool with code: " |
| << mSymbolPool.getError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| return true; |
| } |
| |
| bool BinaryResourceParser::parseTable(const ResChunk_header* chunk) { |
| const ResTable_header* tableHeader = convertTo<ResTable_header>(chunk); |
| if (!tableHeader) { |
| Logger::error(mSource) |
| << "could not parse chunk as ResTable_header." |
| << std::endl; |
| return false; |
| } |
| |
| ResChunkPullParser parser(getChunkData(tableHeader->header), |
| getChunkDataLen(tableHeader->header)); |
| while (ResChunkPullParser::isGoodEvent(parser.next())) { |
| switch (parser.getChunk()->type) { |
| case android::RES_STRING_POOL_TYPE: |
| if (mValuePool.getError() == NO_INIT) { |
| if (mValuePool.setTo(parser.getChunk(), parser.getChunk()->size) != |
| NO_ERROR) { |
| Logger::error(mSource) |
| << "failed to parse value string pool with code: " |
| << mValuePool.getError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| |
| // Reserve some space for the strings we are going to add. |
| mTable->getValueStringPool().hintWillAdd( |
| mValuePool.size(), mValuePool.styleCount()); |
| } else { |
| Logger::warn(mSource) |
| << "unexpected string pool." |
| << std::endl; |
| } |
| break; |
| |
| case RES_TABLE_SYMBOL_TABLE_TYPE: |
| if (!parseSymbolTable(parser.getChunk())) { |
| return false; |
| } |
| break; |
| |
| case RES_TABLE_SOURCE_POOL_TYPE: { |
| if (mSourcePool.setTo(getChunkData(*parser.getChunk()), |
| getChunkDataLen(*parser.getChunk())) != NO_ERROR) { |
| Logger::error(mSource) |
| << "failed to parse source pool with code: " |
| << mSourcePool.getError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| break; |
| } |
| |
| case android::RES_TABLE_PACKAGE_TYPE: |
| if (!parsePackage(parser.getChunk())) { |
| return false; |
| } |
| break; |
| |
| default: |
| Logger::warn(mSource) |
| << "unexpected chunk of type " |
| << parser.getChunk()->type |
| << "." |
| << std::endl; |
| break; |
| } |
| } |
| |
| if (parser.getEvent() == ResChunkPullParser::Event::BadDocument) { |
| Logger::error(mSource) |
| << "bad resource table: " << parser.getLastError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| return true; |
| } |
| |
| bool BinaryResourceParser::parsePackage(const ResChunk_header* chunk) { |
| if (mValuePool.getError() != NO_ERROR) { |
| Logger::error(mSource) |
| << "no value string pool for ResTable." |
| << std::endl; |
| return false; |
| } |
| |
| const ResTable_package* packageHeader = convertTo<ResTable_package>(chunk); |
| if (!packageHeader) { |
| Logger::error(mSource) |
| << "could not parse chunk as ResTable_header." |
| << std::endl; |
| return false; |
| } |
| |
| if (mTable->getPackageId() == ResourceTable::kUnsetPackageId) { |
| // This is the first time the table has it's package ID set. |
| mTable->setPackageId(packageHeader->id); |
| } else if (mTable->getPackageId() != packageHeader->id) { |
| Logger::error(mSource) |
| << "ResTable_package has package ID " |
| << std::hex << packageHeader->id << std::dec |
| << " but ResourceTable has package ID " |
| << std::hex << mTable->getPackageId() << std::dec |
| << std::endl; |
| return false; |
| } |
| |
| size_t len = strnlen16(reinterpret_cast<const char16_t*>(packageHeader->name), |
| sizeof(packageHeader->name) / sizeof(packageHeader->name[0])); |
| if (mTable->getPackage().empty() && len == 0) { |
| mTable->setPackage(mDefaultPackage); |
| } else if (len > 0) { |
| StringPiece16 thisPackage(reinterpret_cast<const char16_t*>(packageHeader->name), len); |
| if (mTable->getPackage().empty()) { |
| mTable->setPackage(thisPackage); |
| } else if (thisPackage != mTable->getPackage()) { |
| Logger::error(mSource) |
| << "incompatible packages: " |
| << mTable->getPackage() |
| << " vs. " |
| << thisPackage |
| << std::endl; |
| return false; |
| } |
| } |
| |
| ResChunkPullParser parser(getChunkData(packageHeader->header), |
| getChunkDataLen(packageHeader->header)); |
| while (ResChunkPullParser::isGoodEvent(parser.next())) { |
| switch (parser.getChunk()->type) { |
| case android::RES_STRING_POOL_TYPE: |
| if (mTypePool.getError() == NO_INIT) { |
| if (mTypePool.setTo(parser.getChunk(), parser.getChunk()->size) != |
| NO_ERROR) { |
| Logger::error(mSource) |
| << "failed to parse type string pool with code " |
| << mTypePool.getError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| } else if (mKeyPool.getError() == NO_INIT) { |
| if (mKeyPool.setTo(parser.getChunk(), parser.getChunk()->size) != |
| NO_ERROR) { |
| Logger::error(mSource) |
| << "failed to parse key string pool with code " |
| << mKeyPool.getError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| } else { |
| Logger::warn(mSource) |
| << "unexpected string pool." |
| << std::endl; |
| } |
| break; |
| |
| case android::RES_TABLE_TYPE_SPEC_TYPE: |
| if (!parseTypeSpec(parser.getChunk())) { |
| return false; |
| } |
| break; |
| |
| case android::RES_TABLE_TYPE_TYPE: |
| if (!parseType(parser.getChunk())) { |
| return false; |
| } |
| break; |
| |
| case RES_TABLE_PUBLIC_TYPE: |
| if (!parsePublic(parser.getChunk())) { |
| return false; |
| } |
| break; |
| |
| default: |
| Logger::warn(mSource) |
| << "unexpected chunk of type " |
| << parser.getChunk()->type |
| << "." |
| << std::endl; |
| break; |
| } |
| } |
| |
| if (parser.getEvent() == ResChunkPullParser::Event::BadDocument) { |
| Logger::error(mSource) |
| << "bad package: " |
| << parser.getLastError() |
| << "." |
| << std::endl; |
| return false; |
| } |
| |
| // Now go through the table and change resource ID references to |
| // symbolic references. |
| |
| ReferenceIdToNameVisitor visitor(mResolver, &mIdIndex); |
| for (auto& type : *mTable) { |
| for (auto& entry : type->entries) { |
| for (auto& configValue : entry->values) { |
| configValue.value->accept(visitor, {}); |
| } |
| } |
| } |
| return true; |
| } |
| |
| bool BinaryResourceParser::parsePublic(const ResChunk_header* chunk) { |
| const Public_header* header = convertTo<Public_header>(chunk); |
| |
| if (header->typeId == 0) { |
| Logger::error(mSource) |
| << "invalid type ID " << header->typeId << std::endl; |
| return false; |
| } |
| |
| const ResourceType* parsedType = parseResourceType(util::getString(mTypePool, |
| header->typeId - 1)); |
| if (!parsedType) { |
| Logger::error(mSource) |
| << "invalid type " << util::getString(mTypePool, header->typeId - 1) << std::endl; |
| return false; |
| } |
| |
| const uintptr_t chunkEnd = reinterpret_cast<uintptr_t>(chunk) + chunk->size; |
| const Public_entry* entry = reinterpret_cast<const Public_entry*>( |
| getChunkData(header->header)); |
| for (uint32_t i = 0; i < header->count; i++) { |
| if (reinterpret_cast<uintptr_t>(entry) + sizeof(*entry) > chunkEnd) { |
| Logger::error(mSource) |
| << "Public_entry extends beyond chunk." |
| << std::endl; |
| return false; |
| } |
| |
| const ResourceId resId = { mTable->getPackageId(), header->typeId, entry->entryId }; |
| const ResourceName name = { |
| mTable->getPackage(), |
| *parsedType, |
| util::getString(mKeyPool, entry->key.index).toString() }; |
| |
| SourceLine source; |
| if (mSourcePool.getError() == NO_ERROR) { |
| source.path = util::utf16ToUtf8(util::getString(mSourcePool, entry->source.index)); |
| source.line = entry->sourceLine; |
| } |
| |
| if (!mTable->markPublicAllowMangled(name, resId, source)) { |
| return false; |
| } |
| |
| // Add this resource name->id mapping to the index so |
| // that we can resolve all ID references to name references. |
| auto cacheIter = mIdIndex.find(resId); |
| if (cacheIter == mIdIndex.end()) { |
| mIdIndex.insert({ resId, name }); |
| } |
| |
| entry++; |
| } |
| return true; |
| } |
| |
| bool BinaryResourceParser::parseTypeSpec(const ResChunk_header* chunk) { |
| if (mTypePool.getError() != NO_ERROR) { |
| Logger::error(mSource) |
| << "no type string pool available for ResTable_typeSpec." |
| << std::endl; |
| return false; |
| } |
| |
| const ResTable_typeSpec* typeSpec = convertTo<ResTable_typeSpec>(chunk); |
| if (!typeSpec) { |
| Logger::error(mSource) |
| << "could not parse chunk as ResTable_typeSpec." |
| << std::endl; |
| return false; |
| } |
| |
| if (typeSpec->id == 0) { |
| Logger::error(mSource) |
| << "ResTable_typeSpec has invalid id: " |
| << typeSpec->id |
| << "." |
| << std::endl; |
| return false; |
| } |
| return true; |
| } |
| |
| bool BinaryResourceParser::parseType(const ResChunk_header* chunk) { |
| if (mTypePool.getError() != NO_ERROR) { |
| Logger::error(mSource) |
| << "no type string pool available for ResTable_typeSpec." |
| << std::endl; |
| return false; |
| } |
| |
| if (mKeyPool.getError() != NO_ERROR) { |
| Logger::error(mSource) |
| << "no key string pool available for ResTable_type." |
| << std::endl; |
| return false; |
| } |
| |
| const ResTable_type* type = convertTo<ResTable_type>(chunk); |
| if (!type) { |
| Logger::error(mSource) |
| << "could not parse chunk as ResTable_type." |
| << std::endl; |
| return false; |
| } |
| |
| if (type->id == 0) { |
| Logger::error(mSource) |
| << "ResTable_type has invalid id: " |
| << type->id |
| << "." |
| << std::endl; |
| return false; |
| } |
| |
| const ConfigDescription config(type->config); |
| const StringPiece16 typeName = util::getString(mTypePool, type->id - 1); |
| |
| const ResourceType* parsedType = parseResourceType(typeName); |
| if (!parsedType) { |
| Logger::error(mSource) |
| << "invalid type name '" |
| << typeName |
| << "' for type with ID " |
| << uint32_t(type->id) |
| << "." << std::endl; |
| return false; |
| } |
| |
| android::TypeVariant tv(type); |
| for (auto it = tv.beginEntries(); it != tv.endEntries(); ++it) { |
| if (!*it) { |
| continue; |
| } |
| |
| const ResTable_entry* entry = *it; |
| const ResourceName name = { |
| mTable->getPackage(), |
| *parsedType, |
| util::getString(mKeyPool, entry->key.index).toString() |
| }; |
| |
| const ResourceId resId = { mTable->getPackageId(), type->id, it.index() }; |
| |
| std::unique_ptr<Value> resourceValue; |
| const ResTable_entry_source* sourceBlock = nullptr; |
| if (entry->flags & ResTable_entry::FLAG_COMPLEX) { |
| const ResTable_map_entry* mapEntry = static_cast<const ResTable_map_entry*>(entry); |
| if (mapEntry->size - sizeof(*mapEntry) == sizeof(*sourceBlock)) { |
| const uint8_t* data = reinterpret_cast<const uint8_t*>(mapEntry); |
| data += mapEntry->size - sizeof(*sourceBlock); |
| sourceBlock = reinterpret_cast<const ResTable_entry_source*>(data); |
| } |
| |
| // TODO(adamlesinski): Check that the entry count is valid. |
| resourceValue = parseMapEntry(name, config, mapEntry); |
| } else { |
| if (entry->size - sizeof(*entry) == sizeof(*sourceBlock)) { |
| const uint8_t* data = reinterpret_cast<const uint8_t*>(entry); |
| data += entry->size - sizeof(*sourceBlock); |
| sourceBlock = reinterpret_cast<const ResTable_entry_source*>(data); |
| } |
| |
| const Res_value* value = reinterpret_cast<const Res_value*>( |
| reinterpret_cast<const uint8_t*>(entry) + entry->size); |
| resourceValue = parseValue(name, config, value, entry->flags); |
| } |
| |
| if (!resourceValue) { |
| // TODO(adamlesinski): For now this is ok, but it really shouldn't be. |
| continue; |
| } |
| |
| SourceLine source = mSource.line(0); |
| if (sourceBlock) { |
| size_t len; |
| const char* str = mSourcePool.string8At(sourceBlock->pathIndex, &len); |
| if (str) { |
| source.path.assign(str, len); |
| } |
| source.line = sourceBlock->line; |
| } |
| |
| if (!mTable->addResourceAllowMangled(name, config, source, std::move(resourceValue))) { |
| return false; |
| } |
| |
| if ((entry->flags & ResTable_entry::FLAG_PUBLIC) != 0) { |
| if (!mTable->markPublicAllowMangled(name, resId, mSource.line(0))) { |
| return false; |
| } |
| } |
| |
| // Add this resource name->id mapping to the index so |
| // that we can resolve all ID references to name references. |
| auto cacheIter = mIdIndex.find(resId); |
| if (cacheIter == mIdIndex.end()) { |
| mIdIndex.insert({ resId, name }); |
| } |
| } |
| return true; |
| } |
| |
| std::unique_ptr<Item> BinaryResourceParser::parseValue(const ResourceNameRef& name, |
| const ConfigDescription& config, |
| const Res_value* value, |
| uint16_t flags) { |
| if (name.type == ResourceType::kId) { |
| return util::make_unique<Id>(); |
| } |
| |
| if (value->dataType == Res_value::TYPE_STRING) { |
| StringPiece16 str = util::getString(mValuePool, value->data); |
| |
| const ResStringPool_span* spans = mValuePool.styleAt(value->data); |
| if (spans != nullptr) { |
| StyleString styleStr = { str.toString() }; |
| while (spans->name.index != ResStringPool_span::END) { |
| styleStr.spans.push_back(Span{ |
| util::getString(mValuePool, spans->name.index).toString(), |
| spans->firstChar, |
| spans->lastChar |
| }); |
| spans++; |
| } |
| return util::make_unique<StyledString>( |
| mTable->getValueStringPool().makeRef( |
| styleStr, StringPool::Context{1, config})); |
| } else { |
| if (name.type != ResourceType::kString && |
| util::stringStartsWith<char16_t>(str, u"res/")) { |
| // This must be a FileReference. |
| return util::make_unique<FileReference>(mTable->getValueStringPool().makeRef( |
| str, StringPool::Context{ 0, config })); |
| } |
| |
| // There are no styles associated with this string, so treat it as |
| // a simple string. |
| return util::make_unique<String>( |
| mTable->getValueStringPool().makeRef( |
| str, StringPool::Context{1, config})); |
| } |
| } |
| |
| if (value->dataType == Res_value::TYPE_REFERENCE || |
| value->dataType == Res_value::TYPE_ATTRIBUTE) { |
| const Reference::Type type = (value->dataType == Res_value::TYPE_REFERENCE) ? |
| Reference::Type::kResource : Reference::Type::kAttribute; |
| |
| if (value->data != 0) { |
| // This is a normal reference. |
| return util::make_unique<Reference>(value->data, type); |
| } |
| |
| // This reference has an invalid ID. Check if it is an unresolved symbol. |
| ResourceNameRef symbol; |
| if (getSymbol(&value->data, &symbol)) { |
| return util::make_unique<Reference>(symbol, type); |
| } |
| |
| // This is not an unresolved symbol, so it must be the magic @null reference. |
| Res_value nullType = {}; |
| nullType.dataType = Res_value::TYPE_REFERENCE; |
| return util::make_unique<BinaryPrimitive>(nullType); |
| } |
| |
| if (value->dataType == ExtendedTypes::TYPE_RAW_STRING) { |
| return util::make_unique<RawString>( |
| mTable->getValueStringPool().makeRef(util::getString(mValuePool, value->data), |
| StringPool::Context{ 1, config })); |
| } |
| |
| // Treat this as a raw binary primitive. |
| return util::make_unique<BinaryPrimitive>(*value); |
| } |
| |
| std::unique_ptr<Value> BinaryResourceParser::parseMapEntry(const ResourceNameRef& name, |
| const ConfigDescription& config, |
| const ResTable_map_entry* map) { |
| switch (name.type) { |
| case ResourceType::kStyle: |
| return parseStyle(name, config, map); |
| case ResourceType::kAttr: |
| return parseAttr(name, config, map); |
| case ResourceType::kArray: |
| return parseArray(name, config, map); |
| case ResourceType::kStyleable: |
| return parseStyleable(name, config, map); |
| case ResourceType::kPlurals: |
| return parsePlural(name, config, map); |
| default: |
| break; |
| } |
| return {}; |
| } |
| |
| std::unique_ptr<Style> BinaryResourceParser::parseStyle(const ResourceNameRef& name, |
| const ConfigDescription& config, |
| const ResTable_map_entry* map) { |
| std::unique_ptr<Style> style = util::make_unique<Style>(); |
| if (map->parent.ident == 0) { |
| // The parent is either not set or it is an unresolved symbol. |
| // Check to see if it is a symbol. |
| ResourceNameRef symbol; |
| if (getSymbol(&map->parent.ident, &symbol)) { |
| style->parent.name = symbol.toResourceName(); |
| } |
| } else { |
| // The parent is a regular reference to a resource. |
| style->parent.id = map->parent.ident; |
| } |
| |
| for (const ResTable_map& mapEntry : map) { |
| style->entries.emplace_back(); |
| Style::Entry& styleEntry = style->entries.back(); |
| |
| if (mapEntry.name.ident == 0) { |
| // The map entry's key (attribute) is not set. This must be |
| // a symbol reference, so resolve it. |
| ResourceNameRef symbol; |
| bool result = getSymbol(&mapEntry.name.ident, &symbol); |
| assert(result); |
| styleEntry.key.name = symbol.toResourceName(); |
| } else { |
| // The map entry's key (attribute) is a regular reference. |
| styleEntry.key.id = mapEntry.name.ident; |
| } |
| |
| // Parse the attribute's value. |
| styleEntry.value = parseValue(name, config, &mapEntry.value, 0); |
| assert(styleEntry.value); |
| } |
| return style; |
| } |
| |
| std::unique_ptr<Attribute> BinaryResourceParser::parseAttr(const ResourceNameRef& name, |
| const ConfigDescription& config, |
| const ResTable_map_entry* map) { |
| const bool isWeak = (map->flags & ResTable_entry::FLAG_WEAK) != 0; |
| std::unique_ptr<Attribute> attr = util::make_unique<Attribute>(isWeak); |
| |
| // First we must discover what type of attribute this is. Find the type mask. |
| auto typeMaskIter = std::find_if(begin(map), end(map), [](const ResTable_map& entry) -> bool { |
| return entry.name.ident == ResTable_map::ATTR_TYPE; |
| }); |
| |
| if (typeMaskIter != end(map)) { |
| attr->typeMask = typeMaskIter->value.data; |
| } |
| |
| if (attr->typeMask & (ResTable_map::TYPE_ENUM | ResTable_map::TYPE_FLAGS)) { |
| for (const ResTable_map& mapEntry : map) { |
| if (Res_INTERNALID(mapEntry.name.ident)) { |
| continue; |
| } |
| |
| Attribute::Symbol symbol; |
| symbol.value = mapEntry.value.data; |
| if (mapEntry.name.ident == 0) { |
| // The map entry's key (id) is not set. This must be |
| // a symbol reference, so resolve it. |
| ResourceNameRef symbolName; |
| bool result = getSymbol(&mapEntry.name.ident, &symbolName); |
| assert(result); |
| symbol.symbol.name = symbolName.toResourceName(); |
| } else { |
| // The map entry's key (id) is a regular reference. |
| symbol.symbol.id = mapEntry.name.ident; |
| } |
| |
| attr->symbols.push_back(std::move(symbol)); |
| } |
| } |
| |
| // TODO(adamlesinski): Find min, max, i80n, etc attributes. |
| return attr; |
| } |
| |
| std::unique_ptr<Array> BinaryResourceParser::parseArray(const ResourceNameRef& name, |
| const ConfigDescription& config, |
| const ResTable_map_entry* map) { |
| std::unique_ptr<Array> array = util::make_unique<Array>(); |
| for (const ResTable_map& mapEntry : map) { |
| array->items.push_back(parseValue(name, config, &mapEntry.value, 0)); |
| } |
| return array; |
| } |
| |
| std::unique_ptr<Styleable> BinaryResourceParser::parseStyleable(const ResourceNameRef& name, |
| const ConfigDescription& config, |
| const ResTable_map_entry* map) { |
| std::unique_ptr<Styleable> styleable = util::make_unique<Styleable>(); |
| for (const ResTable_map& mapEntry : map) { |
| if (mapEntry.name.ident == 0) { |
| // The map entry's key (attribute) is not set. This must be |
| // a symbol reference, so resolve it. |
| ResourceNameRef symbol; |
| bool result = getSymbol(&mapEntry.name.ident, &symbol); |
| assert(result); |
| styleable->entries.emplace_back(symbol); |
| } else { |
| // The map entry's key (attribute) is a regular reference. |
| styleable->entries.emplace_back(mapEntry.name.ident); |
| } |
| } |
| return styleable; |
| } |
| |
| std::unique_ptr<Plural> BinaryResourceParser::parsePlural(const ResourceNameRef& name, |
| const ConfigDescription& config, |
| const ResTable_map_entry* map) { |
| std::unique_ptr<Plural> plural = util::make_unique<Plural>(); |
| for (const ResTable_map& mapEntry : map) { |
| std::unique_ptr<Item> item = parseValue(name, config, &mapEntry.value, 0); |
| |
| switch (mapEntry.name.ident) { |
| case android::ResTable_map::ATTR_ZERO: |
| plural->values[Plural::Zero] = std::move(item); |
| break; |
| case android::ResTable_map::ATTR_ONE: |
| plural->values[Plural::One] = std::move(item); |
| break; |
| case android::ResTable_map::ATTR_TWO: |
| plural->values[Plural::Two] = std::move(item); |
| break; |
| case android::ResTable_map::ATTR_FEW: |
| plural->values[Plural::Few] = std::move(item); |
| break; |
| case android::ResTable_map::ATTR_MANY: |
| plural->values[Plural::Many] = std::move(item); |
| break; |
| case android::ResTable_map::ATTR_OTHER: |
| plural->values[Plural::Other] = std::move(item); |
| break; |
| } |
| } |
| return plural; |
| } |
| |
| } // namespace aapt |
