AAPT2: Add Manifest fixing/validation (2ae4a877) · Commits · e / os / android_frameworks_base

tools/aapt2/Android.mk

+3 −1

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@ sources := \
		flatten/TableFlattener.cpp \
		flatten/XmlFlattener.cpp \
		link/AutoVersioner.cpp \
		link/ManifestFixer.cpp \
		link/PrivateAttributeMover.cpp \
		link/ReferenceLinker.cpp \
		link/TableMerger.cpp \
		@@ -67,6 +68,7 @@ testSources := \
		flatten/TableFlattener_test.cpp \
		flatten/XmlFlattener_test.cpp \
		link/AutoVersioner_test.cpp \
		link/ManifestFixer_test.cpp \
		link/PrivateAttributeMover_test.cpp \
		link/ReferenceLinker_test.cpp \
		link/TableMerger_test.cpp \
		@@ -113,7 +115,7 @@ else
		endif

		cFlags := -Wall -Werror -Wno-unused-parameter -UNDEBUG
		cppFlags := -std=c++11 -Wno-missing-field-initializers -fno-exceptions
		cppFlags := -std=c++11 -Wno-missing-field-initializers -fno-exceptions -fno-rtti

		# ==========================================================
		# Build the host static library: libaapt2

tools/aapt2/Flags.cpp

+9 −1

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@

		#include "Flags.h"
		#include "util/StringPiece.h"
		#include "util/Util.h"

		#include <iomanip>
		#include <iostream>
		@@ -94,7 +95,14 @@ void Flags::usage(const StringPiece& command, std::ostream* out) {
		if (flag.numArgs > 0) {
		argLine += " arg";
		}
		*out << " " << std::setw(30) << std::left << argLine << flag.description << "\n";

		// Split the description by newlines and write out the argument (which is empty after
		// the first line) followed by the description line. This will make sure that multiline
		// descriptions are still right justified and aligned.
		for (StringPiece line : util::tokenize<char>(flag.description, '\n')) {
		*out << " " << std::setw(30) << std::left << argLine << line << "\n";
		argLine = " ";
		}
		}
		*out << " " << std::setw(30) << std::left << "-h" << "Displays this help menu\n";
		out->flush();

tools/aapt2/ManifestValidator.cpp

deleted100644 → 0

+0 −217

Original line number	Diff line number	Diff line
		/*
		* 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 "Logger.h"
		#include "ManifestValidator.h"
		#include "util/Maybe.h"
		#include "Source.h"
		#include "util/Util.h"

		#include <androidfw/ResourceTypes.h>

		namespace aapt {

		ManifestValidator::ManifestValidator(const android::ResTable& table)
		: mTable(table) {
		}

		bool ManifestValidator::validate(const Source& source, android::ResXMLParser* parser) {
		SourceLogger logger(source);

		android::ResXMLParser::event_code_t code;
		while ((code = parser->next()) != android::ResXMLParser::END_DOCUMENT &&
		code != android::ResXMLParser::BAD_DOCUMENT) {
		if (code != android::ResXMLParser::START_TAG) {
		continue;
		}

		size_t len = 0;
		const StringPiece16 namespaceUri(parser->getElementNamespace(&len), len);
		if (!namespaceUri.empty()) {
		continue;
		}

		const StringPiece16 name(parser->getElementName(&len), len);
		if (name.empty()) {
		logger.error(parser->getLineNumber())
		<< "failed to get the element name."
		<< std::endl;
		return false;
		}

		if (name == u"manifest") {
		if (!validateManifest(source, parser)) {
		return false;
		}
		}
		}
		return true;
		}

		Maybe<StringPiece16> ManifestValidator::getAttributeValue(android::ResXMLParser* parser,
		size_t idx) {
		android::Res_value value;
		if (parser->getAttributeValue(idx, &value) < 0) {
		return StringPiece16();
		}

		const android::ResStringPool* pool = &parser->getStrings();
		if (value.dataType == android::Res_value::TYPE_REFERENCE) {
		ssize_t strIdx = mTable.resolveReference(&value, 0x10000000u);
		if (strIdx < 0) {
		return {};
		}
		pool = mTable.getTableStringBlock(strIdx);
		}

		if (value.dataType != android::Res_value::TYPE_STRING \|\| !pool) {
		return {};
		}
		return util::getString(*pool, value.data);
		}

		Maybe<StringPiece16> ManifestValidator::getAttributeInlineValue(android::ResXMLParser* parser,
		size_t idx) {
		android::Res_value value;
		if (parser->getAttributeValue(idx, &value) < 0) {
		return StringPiece16();
		}

		if (value.dataType != android::Res_value::TYPE_STRING) {
		return {};
		}
		return util::getString(parser->getStrings(), value.data);
		}

		bool ManifestValidator::validateInlineAttribute(android::ResXMLParser* parser, size_t idx,
		SourceLogger& logger,
		const StringPiece16& charSet) {
		size_t len = 0;
		StringPiece16 element(parser->getElementName(&len), len);
		StringPiece16 attributeName(parser->getAttributeName(idx, &len), len);
		Maybe<StringPiece16> result = getAttributeInlineValue(parser, idx);
		if (!result) {
		logger.error(parser->getLineNumber())
		<< "<"
		<< element
		<< "> must have a '"
		<< attributeName
		<< "' attribute with a string literal value."
		<< std::endl;
		return false;
		}
		return validateAttributeImpl(element, attributeName, result.value(), charSet,
		parser->getLineNumber(), logger);
		}

		bool ManifestValidator::validateAttribute(android::ResXMLParser* parser, size_t idx,
		SourceLogger& logger, const StringPiece16& charSet) {
		size_t len = 0;
		StringPiece16 element(parser->getElementName(&len), len);
		StringPiece16 attributeName(parser->getAttributeName(idx, &len), len);
		Maybe<StringPiece16> result = getAttributeValue(parser, idx);
		if (!result) {
		logger.error(parser->getLineNumber())
		<< "<"
		<< element
		<< "> must have a '"
		<< attributeName
		<< "' attribute that points to a string."
		<< std::endl;
		return false;
		}
		return validateAttributeImpl(element, attributeName, result.value(), charSet,
		parser->getLineNumber(), logger);
		}

		bool ManifestValidator::validateAttributeImpl(const StringPiece16& element,
		const StringPiece16& attributeName,
		const StringPiece16& attributeValue,
		const StringPiece16& charSet, size_t lineNumber,
		SourceLogger& logger) {
		StringPiece16::const_iterator badIter =
		util::findNonAlphaNumericAndNotInSet(attributeValue, charSet);
		if (badIter != attributeValue.end()) {
		logger.error(lineNumber)
		<< "tag <"
		<< element
		<< "> attribute '"
		<< attributeName
		<< "' has invalid character '"
		<< StringPiece16(badIter, 1)
		<< "'."
		<< std::endl;
		return false;
		}

		if (!attributeValue.empty()) {
		StringPiece16 trimmed = util::trimWhitespace(attributeValue);
		if (attributeValue.begin() != trimmed.begin()) {
		logger.error(lineNumber)
		<< "tag <"
		<< element
		<< "> attribute '"
		<< attributeName
		<< "' can not start with whitespace."
		<< std::endl;
		return false;
		}

		if (attributeValue.end() != trimmed.end()) {
		logger.error(lineNumber)
		<< "tag <"
		<< element
		<< "> attribute '"
		<< attributeName
		<< "' can not end with whitespace."
		<< std::endl;
		return false;
		}
		}
		return true;
		}

		constexpr const char16_t* kPackageIdentSet = u"._";

		bool ManifestValidator::validateManifest(const Source& source, android::ResXMLParser* parser) {
		bool error = false;
		SourceLogger logger(source);

		const StringPiece16 kAndroid = u"android";
		const StringPiece16 kPackage = u"package";
		const StringPiece16 kSharedUserId = u"sharedUserId";

		ssize_t idx;

		idx = parser->indexOfAttribute(nullptr, 0, kPackage.data(), kPackage.size());
		if (idx < 0) {
		logger.error(parser->getLineNumber())
		<< "missing package attribute."
		<< std::endl;
		error = true;
		} else {
		error \|= !validateInlineAttribute(parser, idx, logger, kPackageIdentSet);
		}

		idx = parser->indexOfAttribute(kAndroid.data(), kAndroid.size(),
		kSharedUserId.data(), kSharedUserId.size());
		if (idx >= 0) {
		error \|= !validateInlineAttribute(parser, idx, logger, kPackageIdentSet);
		}
		return !error;
		}

		} // namespace aapt

tools/aapt2/ResourceUtils.cpp

+9 −3

Original line number	Diff line number	Diff line
		@@ -74,9 +74,11 @@ bool tryParseReference(const StringPiece16& str, ResourceNameRef* outRef, bool*
		return false;
		}

		if (outRef != nullptr) {
		outRef->package = package;
		outRef->type = *parsedType;
		outRef->entry = entry;
		}
		if (outCreate) {
		*outCreate = create;
		}
		@@ -88,6 +90,10 @@ bool tryParseReference(const StringPiece16& str, ResourceNameRef* outRef, bool*
		return false;
		}

		bool isReference(const StringPiece16& str) {
		return tryParseReference(str, nullptr, nullptr, nullptr);
		}

		bool tryParseAttributeReference(const StringPiece16& str, ResourceNameRef* outRef) {
		StringPiece16 trimmedStr(util::trimWhitespace(str));
		if (trimmedStr.empty()) {

tools/aapt2/ResourceUtils.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -48,6 +48,11 @@ void extractResourceName(const StringPiece16& str, StringPiece16* outPackage,
		bool tryParseReference(const StringPiece16& str, ResourceNameRef* outReference,
		bool* outCreate = nullptr, bool* outPrivate = nullptr);

		/*
		* Returns true if the string is in the form of a resource reference (@[+][package:]type/name).
		*/
		bool isReference(const StringPiece16& str);

		/*
		* Returns true if the string was parsed as an attribute reference (?[package:]type/name),
		* with `outReference` set to the parsed reference.