| /* |
| * 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 "ResourceParser.h" |
| #include "ResourceTable.h" |
| #include "ResourceUtils.h" |
| #include "ResourceValues.h" |
| #include "ValueVisitor.h" |
| #include "util/ImmutableMap.h" |
| #include "util/Util.h" |
| #include "xml/XmlPullParser.h" |
| |
| #include <functional> |
| #include <sstream> |
| |
| namespace aapt { |
| |
| constexpr const char16_t* sXliffNamespaceUri = u"urn:oasis:names:tc:xliff:document:1.2"; |
| |
| /** |
| * Returns true if the element is <skip> or <eat-comment> and can be safely ignored. |
| */ |
| static bool shouldIgnoreElement(const StringPiece16& ns, const StringPiece16& name) { |
| return ns.empty() && (name == u"skip" || name == u"eat-comment"); |
| } |
| |
| static uint32_t parseFormatType(const StringPiece16& piece) { |
| if (piece == u"reference") return android::ResTable_map::TYPE_REFERENCE; |
| else if (piece == u"string") return android::ResTable_map::TYPE_STRING; |
| else if (piece == u"integer") return android::ResTable_map::TYPE_INTEGER; |
| else if (piece == u"boolean") return android::ResTable_map::TYPE_BOOLEAN; |
| else if (piece == u"color") return android::ResTable_map::TYPE_COLOR; |
| else if (piece == u"float") return android::ResTable_map::TYPE_FLOAT; |
| else if (piece == u"dimension") return android::ResTable_map::TYPE_DIMENSION; |
| else if (piece == u"fraction") return android::ResTable_map::TYPE_FRACTION; |
| else if (piece == u"enum") return android::ResTable_map::TYPE_ENUM; |
| else if (piece == u"flags") return android::ResTable_map::TYPE_FLAGS; |
| return 0; |
| } |
| |
| static uint32_t parseFormatAttribute(const StringPiece16& str) { |
| uint32_t mask = 0; |
| for (StringPiece16 part : util::tokenize(str, u'|')) { |
| StringPiece16 trimmedPart = util::trimWhitespace(part); |
| uint32_t type = parseFormatType(trimmedPart); |
| if (type == 0) { |
| return 0; |
| } |
| mask |= type; |
| } |
| return mask; |
| } |
| |
| /** |
| * A parsed resource ready to be added to the ResourceTable. |
| */ |
| struct ParsedResource { |
| ResourceName name; |
| ConfigDescription config; |
| std::string product; |
| Source source; |
| ResourceId id; |
| Maybe<SymbolState> symbolState; |
| std::u16string comment; |
| std::unique_ptr<Value> value; |
| std::list<ParsedResource> childResources; |
| }; |
| |
| // Recursively adds resources to the ResourceTable. |
| static bool addResourcesToTable(ResourceTable* table, IDiagnostics* diag, ParsedResource* res) { |
| StringPiece16 trimmedComment = util::trimWhitespace(res->comment); |
| if (trimmedComment.size() != res->comment.size()) { |
| // Only if there was a change do we re-assign. |
| res->comment = trimmedComment.toString(); |
| } |
| |
| if (res->symbolState) { |
| Symbol symbol; |
| symbol.state = res->symbolState.value(); |
| symbol.source = res->source; |
| symbol.comment = res->comment; |
| if (!table->setSymbolState(res->name, res->id, symbol, diag)) { |
| return false; |
| } |
| } |
| |
| if (res->value) { |
| // Attach the comment, source and config to the value. |
| res->value->setComment(std::move(res->comment)); |
| res->value->setSource(std::move(res->source)); |
| |
| if (!table->addResource(res->name, res->id, res->config, res->product, |
| std::move(res->value), diag)) { |
| return false; |
| } |
| } |
| |
| bool error = false; |
| for (ParsedResource& child : res->childResources) { |
| error |= !addResourcesToTable(table, diag, &child); |
| } |
| return !error; |
| } |
| |
| // Convenient aliases for more readable function calls. |
| enum { |
| kAllowRawString = true, |
| kNoRawString = false |
| }; |
| |
| ResourceParser::ResourceParser(IDiagnostics* diag, ResourceTable* table, const Source& source, |
| const ConfigDescription& config, |
| const ResourceParserOptions& options) : |
| mDiag(diag), mTable(table), mSource(source), mConfig(config), mOptions(options) { |
| } |
| |
| /** |
| * Build a string from XML that converts nested elements into Span objects. |
| */ |
| bool ResourceParser::flattenXmlSubtree(xml::XmlPullParser* parser, std::u16string* outRawString, |
| StyleString* outStyleString) { |
| std::vector<Span> spanStack; |
| |
| bool error = false; |
| outRawString->clear(); |
| outStyleString->spans.clear(); |
| util::StringBuilder builder; |
| size_t depth = 1; |
| while (xml::XmlPullParser::isGoodEvent(parser->next())) { |
| const xml::XmlPullParser::Event event = parser->getEvent(); |
| if (event == xml::XmlPullParser::Event::kEndElement) { |
| if (!parser->getElementNamespace().empty()) { |
| // We already warned and skipped the start element, so just skip here too |
| continue; |
| } |
| |
| depth--; |
| if (depth == 0) { |
| break; |
| } |
| |
| spanStack.back().lastChar = builder.str().size(); |
| outStyleString->spans.push_back(spanStack.back()); |
| spanStack.pop_back(); |
| |
| } else if (event == xml::XmlPullParser::Event::kText) { |
| outRawString->append(parser->getText()); |
| builder.append(parser->getText()); |
| |
| } else if (event == xml::XmlPullParser::Event::kStartElement) { |
| if (!parser->getElementNamespace().empty()) { |
| if (parser->getElementNamespace() != sXliffNamespaceUri) { |
| // Only warn if this isn't an xliff namespace. |
| mDiag->warn(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "skipping element '" |
| << parser->getElementName() |
| << "' with unknown namespace '" |
| << parser->getElementNamespace() |
| << "'"); |
| } |
| continue; |
| } |
| depth++; |
| |
| // Build a span object out of the nested element. |
| std::u16string spanName = parser->getElementName(); |
| const auto endAttrIter = parser->endAttributes(); |
| for (auto attrIter = parser->beginAttributes(); attrIter != endAttrIter; ++attrIter) { |
| spanName += u";"; |
| spanName += attrIter->name; |
| spanName += u"="; |
| spanName += attrIter->value; |
| } |
| |
| if (builder.str().size() > std::numeric_limits<uint32_t>::max()) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "style string '" << builder.str() << "' is too long"); |
| error = true; |
| } else { |
| spanStack.push_back(Span{ spanName, static_cast<uint32_t>(builder.str().size()) }); |
| } |
| |
| } else if (event == xml::XmlPullParser::Event::kComment) { |
| // Skip |
| } else { |
| assert(false); |
| } |
| } |
| assert(spanStack.empty() && "spans haven't been fully processed"); |
| |
| outStyleString->str = builder.str(); |
| return !error; |
| } |
| |
| bool ResourceParser::parse(xml::XmlPullParser* parser) { |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != xml::XmlPullParser::Event::kStartElement) { |
| // Skip comments and text. |
| continue; |
| } |
| |
| if (!parser->getElementNamespace().empty() || parser->getElementName() != u"resources") { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "root element must be <resources>"); |
| return false; |
| } |
| |
| error |= !parseResources(parser); |
| break; |
| }; |
| |
| if (parser->getEvent() == xml::XmlPullParser::Event::kBadDocument) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "xml parser error: " << parser->getLastError()); |
| return false; |
| } |
| return !error; |
| } |
| |
| bool ResourceParser::parseResources(xml::XmlPullParser* parser) { |
| std::set<ResourceName> strippedResources; |
| |
| bool error = false; |
| std::u16string comment; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| const xml::XmlPullParser::Event event = parser->getEvent(); |
| if (event == xml::XmlPullParser::Event::kComment) { |
| comment = parser->getComment(); |
| continue; |
| } |
| |
| if (event == xml::XmlPullParser::Event::kText) { |
| if (!util::trimWhitespace(parser->getText()).empty()) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "plain text not allowed here"); |
| error = true; |
| } |
| continue; |
| } |
| |
| assert(event == xml::XmlPullParser::Event::kStartElement); |
| |
| if (!parser->getElementNamespace().empty()) { |
| // Skip unknown namespace. |
| continue; |
| } |
| |
| std::u16string elementName = parser->getElementName(); |
| if (elementName == u"skip" || elementName == u"eat-comment") { |
| comment = u""; |
| continue; |
| } |
| |
| ParsedResource parsedResource; |
| parsedResource.config = mConfig; |
| parsedResource.source = mSource.withLine(parser->getLineNumber()); |
| parsedResource.comment = std::move(comment); |
| |
| // Extract the product name if it exists. |
| if (Maybe<StringPiece16> maybeProduct = xml::findNonEmptyAttribute(parser, u"product")) { |
| parsedResource.product = util::utf16ToUtf8(maybeProduct.value()); |
| } |
| |
| // Parse the resource regardless of product. |
| if (!parseResource(parser, &parsedResource)) { |
| error = true; |
| continue; |
| } |
| |
| if (!addResourcesToTable(mTable, mDiag, &parsedResource)) { |
| error = true; |
| } |
| } |
| |
| // Check that we included at least one variant of each stripped resource. |
| for (const ResourceName& strippedResource : strippedResources) { |
| if (!mTable->findResource(strippedResource)) { |
| // Failed to find the resource. |
| mDiag->error(DiagMessage(mSource) << "resource '" << strippedResource << "' " |
| "was filtered out but no product variant remains"); |
| error = true; |
| } |
| } |
| |
| return !error; |
| } |
| |
| |
| bool ResourceParser::parseResource(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| struct ItemTypeFormat { |
| ResourceType type; |
| uint32_t format; |
| }; |
| |
| using BagParseFunc = std::function<bool(ResourceParser*, xml::XmlPullParser*, ParsedResource*)>; |
| |
| static const auto elToItemMap = ImmutableMap<std::u16string, ItemTypeFormat>::createPreSorted({ |
| { u"bool", { ResourceType::kBool, android::ResTable_map::TYPE_BOOLEAN } }, |
| { u"color", { ResourceType::kColor, android::ResTable_map::TYPE_COLOR } }, |
| { u"dimen", { ResourceType::kDimen, android::ResTable_map::TYPE_FLOAT |
| | android::ResTable_map::TYPE_FRACTION |
| | android::ResTable_map::TYPE_DIMENSION } }, |
| { u"drawable", { ResourceType::kDrawable, android::ResTable_map::TYPE_COLOR } }, |
| { u"fraction", { ResourceType::kFraction, android::ResTable_map::TYPE_FLOAT |
| | android::ResTable_map::TYPE_FRACTION |
| | android::ResTable_map::TYPE_DIMENSION } }, |
| { u"integer", { ResourceType::kInteger, android::ResTable_map::TYPE_INTEGER } }, |
| { u"string", { ResourceType::kString, android::ResTable_map::TYPE_STRING } }, |
| }); |
| |
| static const auto elToBagMap = ImmutableMap<std::u16string, BagParseFunc>::createPreSorted({ |
| { u"add-resource", std::mem_fn(&ResourceParser::parseAddResource) }, |
| { u"array", std::mem_fn(&ResourceParser::parseArray) }, |
| { u"attr", std::mem_fn(&ResourceParser::parseAttr) }, |
| { u"declare-styleable", std::mem_fn(&ResourceParser::parseDeclareStyleable) }, |
| { u"integer-array", std::mem_fn(&ResourceParser::parseIntegerArray) }, |
| { u"java-symbol", std::mem_fn(&ResourceParser::parseSymbol) }, |
| { u"plurals", std::mem_fn(&ResourceParser::parsePlural) }, |
| { u"public", std::mem_fn(&ResourceParser::parsePublic) }, |
| { u"public-group", std::mem_fn(&ResourceParser::parsePublicGroup) }, |
| { u"string-array", std::mem_fn(&ResourceParser::parseStringArray) }, |
| { u"style", std::mem_fn(&ResourceParser::parseStyle) }, |
| { u"symbol", std::mem_fn(&ResourceParser::parseSymbol) }, |
| }); |
| |
| std::u16string resourceType = parser->getElementName(); |
| |
| // The value format accepted for this resource. |
| uint32_t resourceFormat = 0u; |
| |
| if (resourceType == u"item") { |
| // Items have their type encoded in the type attribute. |
| if (Maybe<StringPiece16> maybeType = xml::findNonEmptyAttribute(parser, u"type")) { |
| resourceType = maybeType.value().toString(); |
| } else { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "<item> must have a 'type' attribute"); |
| return false; |
| } |
| |
| if (Maybe<StringPiece16> maybeFormat = xml::findNonEmptyAttribute(parser, u"format")) { |
| // An explicit format for this resource was specified. The resource will retain |
| // its type in its name, but the accepted value for this type is overridden. |
| resourceFormat = parseFormatType(maybeFormat.value()); |
| if (!resourceFormat) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "'" << maybeFormat.value() << "' is an invalid format"); |
| return false; |
| } |
| } |
| } |
| |
| // Get the name of the resource. This will be checked later, because not all |
| // XML elements require a name. |
| Maybe<StringPiece16> maybeName = xml::findNonEmptyAttribute(parser, u"name"); |
| |
| if (resourceType == u"id") { |
| if (!maybeName) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "<" << parser->getElementName() << "> missing 'name' attribute"); |
| return false; |
| } |
| |
| outResource->name.type = ResourceType::kId; |
| outResource->name.entry = maybeName.value().toString(); |
| outResource->value = util::make_unique<Id>(); |
| return true; |
| } |
| |
| const auto itemIter = elToItemMap.find(resourceType); |
| if (itemIter != elToItemMap.end()) { |
| // This is an item, record its type and format and start parsing. |
| |
| if (!maybeName) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "<" << parser->getElementName() << "> missing 'name' attribute"); |
| return false; |
| } |
| |
| outResource->name.type = itemIter->second.type; |
| outResource->name.entry = maybeName.value().toString(); |
| |
| // Only use the implicit format for this type if it wasn't overridden. |
| if (!resourceFormat) { |
| resourceFormat = itemIter->second.format; |
| } |
| |
| if (!parseItem(parser, outResource, resourceFormat)) { |
| return false; |
| } |
| return true; |
| } |
| |
| // This might be a bag or something. |
| const auto bagIter = elToBagMap.find(resourceType); |
| if (bagIter != elToBagMap.end()) { |
| // Ensure we have a name (unless this is a <public-group>). |
| if (resourceType != u"public-group") { |
| if (!maybeName) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "<" << parser->getElementName() << "> missing 'name' attribute"); |
| return false; |
| } |
| |
| outResource->name.entry = maybeName.value().toString(); |
| } |
| |
| // Call the associated parse method. The type will be filled in by the |
| // parse func. |
| if (!bagIter->second(this, parser, outResource)) { |
| return false; |
| } |
| return true; |
| } |
| |
| // Try parsing the elementName (or type) as a resource. These shall only be |
| // resources like 'layout' or 'xml' and they can only be references. |
| const ResourceType* parsedType = parseResourceType(resourceType); |
| if (parsedType) { |
| if (!maybeName) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "<" << parser->getElementName() << "> missing 'name' attribute"); |
| return false; |
| } |
| |
| outResource->name.type = *parsedType; |
| outResource->name.entry = maybeName.value().toString(); |
| outResource->value = parseXml(parser, android::ResTable_map::TYPE_REFERENCE, kNoRawString); |
| if (!outResource->value) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid value for type '" << *parsedType << "'. Expected a reference"); |
| return false; |
| } |
| return true; |
| } |
| |
| mDiag->warn(DiagMessage(outResource->source) |
| << "unknown resource type '" << parser->getElementName() << "'"); |
| return false; |
| } |
| |
| bool ResourceParser::parseItem(xml::XmlPullParser* parser, ParsedResource* outResource, |
| const uint32_t format) { |
| if (format == android::ResTable_map::TYPE_STRING) { |
| return parseString(parser, outResource); |
| } |
| |
| outResource->value = parseXml(parser, format, kNoRawString); |
| if (!outResource->value) { |
| mDiag->error(DiagMessage(outResource->source) << "invalid " << outResource->name.type); |
| return false; |
| } |
| return true; |
| } |
| |
| /** |
| * Reads the entire XML subtree and attempts to parse it as some Item, |
| * with typeMask denoting which items it can be. If allowRawValue is |
| * true, a RawString is returned if the XML couldn't be parsed as |
| * an Item. If allowRawValue is false, nullptr is returned in this |
| * case. |
| */ |
| std::unique_ptr<Item> ResourceParser::parseXml(xml::XmlPullParser* parser, const uint32_t typeMask, |
| const bool allowRawValue) { |
| const size_t beginXmlLine = parser->getLineNumber(); |
| |
| std::u16string rawValue; |
| StyleString styleString; |
| if (!flattenXmlSubtree(parser, &rawValue, &styleString)) { |
| return {}; |
| } |
| |
| if (!styleString.spans.empty()) { |
| // This can only be a StyledString. |
| return util::make_unique<StyledString>( |
| mTable->stringPool.makeRef(styleString, StringPool::Context{ 1, mConfig })); |
| } |
| |
| auto onCreateReference = [&](const ResourceName& name) { |
| // name.package can be empty here, as it will assume the package name of the table. |
| std::unique_ptr<Id> id = util::make_unique<Id>(); |
| id->setSource(mSource.withLine(beginXmlLine)); |
| mTable->addResource(name, {}, {}, std::move(id), mDiag); |
| }; |
| |
| // Process the raw value. |
| std::unique_ptr<Item> processedItem = ResourceUtils::parseItemForAttribute(rawValue, typeMask, |
| onCreateReference); |
| if (processedItem) { |
| // Fix up the reference. |
| if (Reference* ref = valueCast<Reference>(processedItem.get())) { |
| transformReferenceFromNamespace(parser, u"", ref); |
| } |
| return processedItem; |
| } |
| |
| // Try making a regular string. |
| if (typeMask & android::ResTable_map::TYPE_STRING) { |
| // Use the trimmed, escaped string. |
| return util::make_unique<String>( |
| mTable->stringPool.makeRef(styleString.str, StringPool::Context{ 1, mConfig })); |
| } |
| |
| if (allowRawValue) { |
| // We can't parse this so return a RawString if we are allowed. |
| return util::make_unique<RawString>( |
| mTable->stringPool.makeRef(rawValue, StringPool::Context{ 1, mConfig })); |
| } |
| return {}; |
| } |
| |
| bool ResourceParser::parseString(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| bool formatted = true; |
| if (Maybe<StringPiece16> formattedAttr = xml::findAttribute(parser, u"formatted")) { |
| if (!ResourceUtils::tryParseBool(formattedAttr.value(), &formatted)) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid value for 'formatted'. Must be a boolean"); |
| return false; |
| } |
| } |
| |
| bool translateable = mOptions.translatable; |
| if (Maybe<StringPiece16> translateableAttr = xml::findAttribute(parser, u"translatable")) { |
| if (!ResourceUtils::tryParseBool(translateableAttr.value(), &translateable)) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid value for 'translatable'. Must be a boolean"); |
| return false; |
| } |
| } |
| |
| outResource->value = parseXml(parser, android::ResTable_map::TYPE_STRING, kNoRawString); |
| if (!outResource->value) { |
| mDiag->error(DiagMessage(outResource->source) << "not a valid string"); |
| return false; |
| } |
| |
| if (String* stringValue = valueCast<String>(outResource->value.get())) { |
| stringValue->setTranslateable(translateable); |
| |
| if (formatted && translateable) { |
| if (!util::verifyJavaStringFormat(*stringValue->value)) { |
| DiagMessage msg(outResource->source); |
| msg << "multiple substitutions specified in non-positional format; " |
| "did you mean to add the formatted=\"false\" attribute?"; |
| if (mOptions.errorOnPositionalArguments) { |
| mDiag->error(msg); |
| return false; |
| } |
| |
| mDiag->warn(msg); |
| } |
| } |
| |
| } else if (StyledString* stringValue = valueCast<StyledString>(outResource->value.get())) { |
| stringValue->setTranslateable(translateable); |
| } |
| return true; |
| } |
| |
| bool ResourceParser::parsePublic(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| Maybe<StringPiece16> maybeType = xml::findNonEmptyAttribute(parser, u"type"); |
| if (!maybeType) { |
| mDiag->error(DiagMessage(outResource->source) << "<public> must have a 'type' attribute"); |
| return false; |
| } |
| |
| const ResourceType* parsedType = parseResourceType(maybeType.value()); |
| if (!parsedType) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid resource type '" << maybeType.value() << "' in <public>"); |
| return false; |
| } |
| |
| outResource->name.type = *parsedType; |
| |
| if (Maybe<StringPiece16> maybeId = xml::findNonEmptyAttribute(parser, u"id")) { |
| android::Res_value val; |
| bool result = android::ResTable::stringToInt(maybeId.value().data(), |
| maybeId.value().size(), &val); |
| ResourceId resourceId(val.data); |
| if (!result || !resourceId.isValid()) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid resource ID '" << maybeId.value() << "' in <public>"); |
| return false; |
| } |
| outResource->id = resourceId; |
| } |
| |
| if (*parsedType == ResourceType::kId) { |
| // An ID marked as public is also the definition of an ID. |
| outResource->value = util::make_unique<Id>(); |
| } |
| |
| outResource->symbolState = SymbolState::kPublic; |
| return true; |
| } |
| |
| bool ResourceParser::parsePublicGroup(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| Maybe<StringPiece16> maybeType = xml::findNonEmptyAttribute(parser, u"type"); |
| if (!maybeType) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "<public-group> must have a 'type' attribute"); |
| return false; |
| } |
| |
| const ResourceType* parsedType = parseResourceType(maybeType.value()); |
| if (!parsedType) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid resource type '" << maybeType.value() << "' in <public-group>"); |
| return false; |
| } |
| |
| Maybe<StringPiece16> maybeId = xml::findNonEmptyAttribute(parser, u"first-id"); |
| if (!maybeId) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "<public-group> must have a 'first-id' attribute"); |
| return false; |
| } |
| |
| android::Res_value val; |
| bool result = android::ResTable::stringToInt(maybeId.value().data(), |
| maybeId.value().size(), &val); |
| ResourceId nextId(val.data); |
| if (!result || !nextId.isValid()) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid resource ID '" << maybeId.value() << "' in <public-group>"); |
| return false; |
| } |
| |
| std::u16string comment; |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() == xml::XmlPullParser::Event::kComment) { |
| comment = util::trimWhitespace(parser->getComment()).toString(); |
| continue; |
| } else if (parser->getEvent() != xml::XmlPullParser::Event::kStartElement) { |
| // Skip text. |
| continue; |
| } |
| |
| const Source itemSource = mSource.withLine(parser->getLineNumber()); |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && elementName == u"public") { |
| Maybe<StringPiece16> maybeName = xml::findNonEmptyAttribute(parser, u"name"); |
| if (!maybeName) { |
| mDiag->error(DiagMessage(itemSource) << "<public> must have a 'name' attribute"); |
| error = true; |
| continue; |
| } |
| |
| if (xml::findNonEmptyAttribute(parser, u"id")) { |
| mDiag->error(DiagMessage(itemSource) << "'id' is ignored within <public-group>"); |
| error = true; |
| continue; |
| } |
| |
| if (xml::findNonEmptyAttribute(parser, u"type")) { |
| mDiag->error(DiagMessage(itemSource) << "'type' is ignored within <public-group>"); |
| error = true; |
| continue; |
| } |
| |
| ParsedResource childResource; |
| childResource.name.type = *parsedType; |
| childResource.name.entry = maybeName.value().toString(); |
| childResource.id = nextId; |
| childResource.comment = std::move(comment); |
| childResource.source = itemSource; |
| childResource.symbolState = SymbolState::kPublic; |
| outResource->childResources.push_back(std::move(childResource)); |
| |
| nextId.id += 1; |
| |
| } else if (!shouldIgnoreElement(elementNamespace, elementName)) { |
| mDiag->error(DiagMessage(itemSource) << ":" << elementName << ">"); |
| error = true; |
| } |
| } |
| return !error; |
| } |
| |
| bool ResourceParser::parseSymbolImpl(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| Maybe<StringPiece16> maybeType = xml::findNonEmptyAttribute(parser, u"type"); |
| if (!maybeType) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "<" << parser->getElementName() << "> must have a 'type' attribute"); |
| return false; |
| } |
| |
| const ResourceType* parsedType = parseResourceType(maybeType.value()); |
| if (!parsedType) { |
| mDiag->error(DiagMessage(outResource->source) |
| << "invalid resource type '" << maybeType.value() |
| << "' in <" << parser->getElementName() << ">"); |
| return false; |
| } |
| |
| outResource->name.type = *parsedType; |
| return true; |
| } |
| |
| bool ResourceParser::parseSymbol(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| if (parseSymbolImpl(parser, outResource)) { |
| outResource->symbolState = SymbolState::kPrivate; |
| return true; |
| } |
| return false; |
| } |
| |
| bool ResourceParser::parseAddResource(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| if (parseSymbolImpl(parser, outResource)) { |
| outResource->symbolState = SymbolState::kUndefined; |
| return true; |
| } |
| return false; |
| } |
| |
| |
| bool ResourceParser::parseAttr(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| return parseAttrImpl(parser, outResource, false); |
| } |
| |
| bool ResourceParser::parseAttrImpl(xml::XmlPullParser* parser, ParsedResource* outResource, |
| bool weak) { |
| outResource->name.type = ResourceType::kAttr; |
| |
| // Attributes only end up in default configuration. |
| if (outResource->config != ConfigDescription::defaultConfig()) { |
| mDiag->warn(DiagMessage(outResource->source) << "ignoring configuration '" |
| << outResource->config << "' for attribute " << outResource->name); |
| outResource->config = ConfigDescription::defaultConfig(); |
| } |
| |
| uint32_t typeMask = 0; |
| |
| Maybe<StringPiece16> maybeFormat = xml::findAttribute(parser, u"format"); |
| if (maybeFormat) { |
| typeMask = parseFormatAttribute(maybeFormat.value()); |
| if (typeMask == 0) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "invalid attribute format '" << maybeFormat.value() << "'"); |
| return false; |
| } |
| } |
| |
| Maybe<int32_t> maybeMin, maybeMax; |
| |
| if (Maybe<StringPiece16> maybeMinStr = xml::findAttribute(parser, u"min")) { |
| StringPiece16 minStr = util::trimWhitespace(maybeMinStr.value()); |
| if (!minStr.empty()) { |
| android::Res_value value; |
| if (android::ResTable::stringToInt(minStr.data(), minStr.size(), &value)) { |
| maybeMin = static_cast<int32_t>(value.data); |
| } |
| } |
| |
| if (!maybeMin) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "invalid 'min' value '" << minStr << "'"); |
| return false; |
| } |
| } |
| |
| if (Maybe<StringPiece16> maybeMaxStr = xml::findAttribute(parser, u"max")) { |
| StringPiece16 maxStr = util::trimWhitespace(maybeMaxStr.value()); |
| if (!maxStr.empty()) { |
| android::Res_value value; |
| if (android::ResTable::stringToInt(maxStr.data(), maxStr.size(), &value)) { |
| maybeMax = static_cast<int32_t>(value.data); |
| } |
| } |
| |
| if (!maybeMax) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "invalid 'max' value '" << maxStr << "'"); |
| return false; |
| } |
| } |
| |
| if ((maybeMin || maybeMax) && (typeMask & android::ResTable_map::TYPE_INTEGER) == 0) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "'min' and 'max' can only be used when format='integer'"); |
| return false; |
| } |
| |
| struct SymbolComparator { |
| bool operator()(const Attribute::Symbol& a, const Attribute::Symbol& b) { |
| return a.symbol.name.value() < b.symbol.name.value(); |
| } |
| }; |
| |
| std::set<Attribute::Symbol, SymbolComparator> items; |
| |
| std::u16string comment; |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() == xml::XmlPullParser::Event::kComment) { |
| comment = util::trimWhitespace(parser->getComment()).toString(); |
| continue; |
| } else if (parser->getEvent() != xml::XmlPullParser::Event::kStartElement) { |
| // Skip text. |
| continue; |
| } |
| |
| const Source itemSource = mSource.withLine(parser->getLineNumber()); |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && (elementName == u"flag" || elementName == u"enum")) { |
| if (elementName == u"enum") { |
| if (typeMask & android::ResTable_map::TYPE_FLAGS) { |
| mDiag->error(DiagMessage(itemSource) |
| << "can not define an <enum>; already defined a <flag>"); |
| error = true; |
| continue; |
| } |
| typeMask |= android::ResTable_map::TYPE_ENUM; |
| |
| } else if (elementName == u"flag") { |
| if (typeMask & android::ResTable_map::TYPE_ENUM) { |
| mDiag->error(DiagMessage(itemSource) |
| << "can not define a <flag>; already defined an <enum>"); |
| error = true; |
| continue; |
| } |
| typeMask |= android::ResTable_map::TYPE_FLAGS; |
| } |
| |
| if (Maybe<Attribute::Symbol> s = parseEnumOrFlagItem(parser, elementName)) { |
| Attribute::Symbol& symbol = s.value(); |
| ParsedResource childResource; |
| childResource.name = symbol.symbol.name.value(); |
| childResource.source = itemSource; |
| childResource.value = util::make_unique<Id>(); |
| outResource->childResources.push_back(std::move(childResource)); |
| |
| symbol.symbol.setComment(std::move(comment)); |
| symbol.symbol.setSource(itemSource); |
| |
| auto insertResult = items.insert(std::move(symbol)); |
| if (!insertResult.second) { |
| const Attribute::Symbol& existingSymbol = *insertResult.first; |
| mDiag->error(DiagMessage(itemSource) |
| << "duplicate symbol '" << existingSymbol.symbol.name.value().entry |
| << "'"); |
| |
| mDiag->note(DiagMessage(existingSymbol.symbol.getSource()) |
| << "first defined here"); |
| error = true; |
| } |
| } else { |
| error = true; |
| } |
| } else if (!shouldIgnoreElement(elementNamespace, elementName)) { |
| mDiag->error(DiagMessage(itemSource) << ":" << elementName << ">"); |
| error = true; |
| } |
| |
| comment = {}; |
| } |
| |
| if (error) { |
| return false; |
| } |
| |
| std::unique_ptr<Attribute> attr = util::make_unique<Attribute>(weak); |
| attr->symbols = std::vector<Attribute::Symbol>(items.begin(), items.end()); |
| attr->typeMask = typeMask ? typeMask : uint32_t(android::ResTable_map::TYPE_ANY); |
| if (maybeMin) { |
| attr->minInt = maybeMin.value(); |
| } |
| |
| if (maybeMax) { |
| attr->maxInt = maybeMax.value(); |
| } |
| outResource->value = std::move(attr); |
| return true; |
| } |
| |
| Maybe<Attribute::Symbol> ResourceParser::parseEnumOrFlagItem(xml::XmlPullParser* parser, |
| const StringPiece16& tag) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| Maybe<StringPiece16> maybeName = xml::findNonEmptyAttribute(parser, u"name"); |
| if (!maybeName) { |
| mDiag->error(DiagMessage(source) << "no attribute 'name' found for tag <" << tag << ">"); |
| return {}; |
| } |
| |
| Maybe<StringPiece16> maybeValue = xml::findNonEmptyAttribute(parser, u"value"); |
| if (!maybeValue) { |
| mDiag->error(DiagMessage(source) << "no attribute 'value' found for tag <" << tag << ">"); |
| return {}; |
| } |
| |
| android::Res_value val; |
| if (!android::ResTable::stringToInt(maybeValue.value().data(), |
| maybeValue.value().size(), &val)) { |
| mDiag->error(DiagMessage(source) << "invalid value '" << maybeValue.value() |
| << "' for <" << tag << ">; must be an integer"); |
| return {}; |
| } |
| |
| return Attribute::Symbol{ |
| Reference(ResourceNameRef({}, ResourceType::kId, maybeName.value())), val.data }; |
| } |
| |
| static Maybe<Reference> parseXmlAttributeName(StringPiece16 str) { |
| str = util::trimWhitespace(str); |
| const char16_t* start = str.data(); |
| const char16_t* const end = start + str.size(); |
| const char16_t* p = start; |
| |
| Reference ref; |
| if (p != end && *p == u'*') { |
| ref.privateReference = true; |
| start++; |
| p++; |
| } |
| |
| StringPiece16 package; |
| StringPiece16 name; |
| while (p != end) { |
| if (*p == u':') { |
| package = StringPiece16(start, p - start); |
| name = StringPiece16(p + 1, end - (p + 1)); |
| break; |
| } |
| p++; |
| } |
| |
| ref.name = ResourceName(package.toString(), ResourceType::kAttr, |
| name.empty() ? str.toString() : name.toString()); |
| return Maybe<Reference>(std::move(ref)); |
| } |
| |
| bool ResourceParser::parseStyleItem(xml::XmlPullParser* parser, Style* style) { |
| const Source source = mSource.withLine(parser->getLineNumber()); |
| |
| Maybe<StringPiece16> maybeName = xml::findNonEmptyAttribute(parser, u"name"); |
| if (!maybeName) { |
| mDiag->error(DiagMessage(source) << "<item> must have a 'name' attribute"); |
| return false; |
| } |
| |
| Maybe<Reference> maybeKey = parseXmlAttributeName(maybeName.value()); |
| if (!maybeKey) { |
| mDiag->error(DiagMessage(source) << "invalid attribute name '" << maybeName.value() << "'"); |
| return false; |
| } |
| |
| transformReferenceFromNamespace(parser, u"", &maybeKey.value()); |
| maybeKey.value().setSource(source); |
| |
| std::unique_ptr<Item> value = parseXml(parser, 0, kAllowRawString); |
| if (!value) { |
| mDiag->error(DiagMessage(source) << "could not parse style item"); |
| return false; |
| } |
| |
| style->entries.push_back(Style::Entry{ std::move(maybeKey.value()), std::move(value) }); |
| return true; |
| } |
| |
| bool ResourceParser::parseStyle(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| outResource->name.type = ResourceType::kStyle; |
| |
| std::unique_ptr<Style> style = util::make_unique<Style>(); |
| |
| Maybe<StringPiece16> maybeParent = xml::findAttribute(parser, u"parent"); |
| if (maybeParent) { |
| // If the parent is empty, we don't have a parent, but we also don't infer either. |
| if (!maybeParent.value().empty()) { |
| std::string errStr; |
| style->parent = ResourceUtils::parseStyleParentReference(maybeParent.value(), &errStr); |
| if (!style->parent) { |
| mDiag->error(DiagMessage(outResource->source) << errStr); |
| return false; |
| } |
| |
| // Transform the namespace prefix to the actual package name, and mark the reference as |
| // private if appropriate. |
| transformReferenceFromNamespace(parser, u"", &style->parent.value()); |
| } |
| |
| } else { |
| // No parent was specified, so try inferring it from the style name. |
| std::u16string styleName = outResource->name.entry; |
| size_t pos = styleName.find_last_of(u'.'); |
| if (pos != std::string::npos) { |
| style->parentInferred = true; |
| style->parent = Reference(ResourceName({}, ResourceType::kStyle, |
| styleName.substr(0, pos))); |
| } |
| } |
| |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != xml::XmlPullParser::Event::kStartElement) { |
| // Skip text and comments. |
| continue; |
| } |
| |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace == u"" && elementName == u"item") { |
| error |= !parseStyleItem(parser, style.get()); |
| |
| } else if (!shouldIgnoreElement(elementNamespace, elementName)) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << ":" << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return false; |
| } |
| |
| outResource->value = std::move(style); |
| return true; |
| } |
| |
| bool ResourceParser::parseArray(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| return parseArrayImpl(parser, outResource, android::ResTable_map::TYPE_ANY); |
| } |
| |
| bool ResourceParser::parseIntegerArray(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| return parseArrayImpl(parser, outResource, android::ResTable_map::TYPE_INTEGER); |
| } |
| |
| bool ResourceParser::parseStringArray(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| return parseArrayImpl(parser, outResource, android::ResTable_map::TYPE_STRING); |
| } |
| |
| bool ResourceParser::parseArrayImpl(xml::XmlPullParser* parser, ParsedResource* outResource, |
| const uint32_t typeMask) { |
| outResource->name.type = ResourceType::kArray; |
| |
| std::unique_ptr<Array> array = util::make_unique<Array>(); |
| |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != xml::XmlPullParser::Event::kStartElement) { |
| // Skip text and comments. |
| continue; |
| } |
| |
| const Source itemSource = mSource.withLine(parser->getLineNumber()); |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && elementName == u"item") { |
| std::unique_ptr<Item> item = parseXml(parser, typeMask, kNoRawString); |
| if (!item) { |
| mDiag->error(DiagMessage(itemSource) << "could not parse array item"); |
| error = true; |
| continue; |
| } |
| item->setSource(itemSource); |
| array->items.emplace_back(std::move(item)); |
| |
| } else if (!shouldIgnoreElement(elementNamespace, elementName)) { |
| mDiag->error(DiagMessage(mSource.withLine(parser->getLineNumber())) |
| << "unknown tag <" << elementNamespace << ":" << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return false; |
| } |
| |
| outResource->value = std::move(array); |
| return true; |
| } |
| |
| bool ResourceParser::parsePlural(xml::XmlPullParser* parser, ParsedResource* outResource) { |
| outResource->name.type = ResourceType::kPlurals; |
| |
| std::unique_ptr<Plural> plural = util::make_unique<Plural>(); |
| |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() != xml::XmlPullParser::Event::kStartElement) { |
| // Skip text and comments. |
| continue; |
| } |
| |
| const Source itemSource = mSource.withLine(parser->getLineNumber()); |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && elementName == u"item") { |
| Maybe<StringPiece16> maybeQuantity = xml::findNonEmptyAttribute(parser, u"quantity"); |
| if (!maybeQuantity) { |
| mDiag->error(DiagMessage(itemSource) << "<item> in <plurals> requires attribute " |
| << "'quantity'"); |
| error = true; |
| continue; |
| } |
| |
| StringPiece16 trimmedQuantity = util::trimWhitespace(maybeQuantity.value()); |
| size_t index = 0; |
| if (trimmedQuantity == u"zero") { |
| index = Plural::Zero; |
| } else if (trimmedQuantity == u"one") { |
| index = Plural::One; |
| } else if (trimmedQuantity == u"two") { |
| index = Plural::Two; |
| } else if (trimmedQuantity == u"few") { |
| index = Plural::Few; |
| } else if (trimmedQuantity == u"many") { |
| index = Plural::Many; |
| } else if (trimmedQuantity == u"other") { |
| index = Plural::Other; |
| } else { |
| mDiag->error(DiagMessage(itemSource) |
| << "<item> in <plural> has invalid value '" << trimmedQuantity |
| << "' for attribute 'quantity'"); |
| error = true; |
| continue; |
| } |
| |
| if (plural->values[index]) { |
| mDiag->error(DiagMessage(itemSource) |
| << "duplicate quantity '" << trimmedQuantity << "'"); |
| error = true; |
| continue; |
| } |
| |
| if (!(plural->values[index] = parseXml(parser, android::ResTable_map::TYPE_STRING, |
| kNoRawString))) { |
| error = true; |
| } |
| plural->values[index]->setSource(itemSource); |
| |
| } else if (!shouldIgnoreElement(elementNamespace, elementName)) { |
| mDiag->error(DiagMessage(itemSource) << "unknown tag <" << elementNamespace << ":" |
| << elementName << ">"); |
| error = true; |
| } |
| } |
| |
| if (error) { |
| return false; |
| } |
| |
| outResource->value = std::move(plural); |
| return true; |
| } |
| |
| bool ResourceParser::parseDeclareStyleable(xml::XmlPullParser* parser, |
| ParsedResource* outResource) { |
| outResource->name.type = ResourceType::kStyleable; |
| |
| // Declare-styleable is kPrivate by default, because it technically only exists in R.java. |
| outResource->symbolState = SymbolState::kPublic; |
| |
| // Declare-styleable only ends up in default config; |
| if (outResource->config != ConfigDescription::defaultConfig()) { |
| mDiag->warn(DiagMessage(outResource->source) << "ignoring configuration '" |
| << outResource->config << "' for styleable " |
| << outResource->name.entry); |
| outResource->config = ConfigDescription::defaultConfig(); |
| } |
| |
| std::unique_ptr<Styleable> styleable = util::make_unique<Styleable>(); |
| |
| std::u16string comment; |
| bool error = false; |
| const size_t depth = parser->getDepth(); |
| while (xml::XmlPullParser::nextChildNode(parser, depth)) { |
| if (parser->getEvent() == xml::XmlPullParser::Event::kComment) { |
| comment = util::trimWhitespace(parser->getComment()).toString(); |
| continue; |
| } else if (parser->getEvent() != xml::XmlPullParser::Event::kStartElement) { |
| // Ignore text. |
| continue; |
| } |
| |
| const Source itemSource = mSource.withLine(parser->getLineNumber()); |
| const std::u16string& elementNamespace = parser->getElementNamespace(); |
| const std::u16string& elementName = parser->getElementName(); |
| if (elementNamespace.empty() && elementName == u"attr") { |
| Maybe<StringPiece16> maybeName = xml::findNonEmptyAttribute(parser, u"name"); |
| if (!maybeName) { |
| mDiag->error(DiagMessage(itemSource) << "<attr> tag must have a 'name' attribute"); |
| error = true; |
| continue; |
| } |
| |
| // If this is a declaration, the package name may be in the name. Separate these out. |
| // Eg. <attr name="android:text" /> |
| Maybe<Reference> maybeRef = parseXmlAttributeName(maybeName.value()); |
| if (!maybeRef) { |
| mDiag->error(DiagMessage(itemSource) << "<attr> tag has invalid name '" |
| << maybeName.value() << "'"); |
| error = true; |
| continue; |
| } |
| |
| Reference& childRef = maybeRef.value(); |
| xml::transformReferenceFromNamespace(parser, u"", &childRef); |
| |
| // Create the ParsedResource that will add the attribute to the table. |
| ParsedResource childResource; |
| childResource.name = childRef.name.value(); |
| childResource.source = itemSource; |
| childResource.comment = std::move(comment); |
| |
| if (!parseAttrImpl(parser, &childResource, true)) { |
| error = true; |
| continue; |
| } |
| |
| // Create the reference to this attribute. |
| childRef.setComment(childResource.comment); |
| childRef.setSource(itemSource); |
| styleable->entries.push_back(std::move(childRef)); |
| |
| outResource->childResources.push_back(std::move(childResource)); |
| |
| } else if (!shouldIgnoreElement(elementNamespace, elementName)) { |
| mDiag->error(DiagMessage(itemSource) << "unknown tag <" << elementNamespace << ":" |
| << elementName << ">"); |
| error = true; |
| } |
| |
| comment = {}; |
| } |
| |
| if (error) { |
| return false; |
| } |
| |
| outResource->value = std::move(styleable); |
| return true; |
| } |
| |
| } // namespace aapt |
