1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include "Source.h" 18#include "java/AnnotationProcessor.h" 19#include "java/ClassDefinition.h" 20#include "java/ManifestClassGenerator.h" 21#include "util/Maybe.h" 22#include "xml/XmlDom.h" 23 24#include <algorithm> 25 26namespace aapt { 27 28static Maybe<StringPiece16> extractJavaIdentifier(IDiagnostics* diag, const Source& source, 29 const StringPiece16& value) { 30 const StringPiece16 sep = u"."; 31 auto iter = std::find_end(value.begin(), value.end(), sep.begin(), sep.end()); 32 33 StringPiece16 result; 34 if (iter != value.end()) { 35 result.assign(iter + sep.size(), value.end() - (iter + sep.size())); 36 } else { 37 result = value; 38 } 39 40 if (result.empty()) { 41 diag->error(DiagMessage(source) << "empty symbol"); 42 return {}; 43 } 44 45 iter = util::findNonAlphaNumericAndNotInSet(result, u"_"); 46 if (iter != result.end()) { 47 diag->error(DiagMessage(source) 48 << "invalid character '" << StringPiece16(iter, 1) 49 << "' in '" << result << "'"); 50 return {}; 51 } 52 53 if (*result.begin() >= u'0' && *result.begin() <= u'9') { 54 diag->error(DiagMessage(source) << "symbol can not start with a digit"); 55 return {}; 56 } 57 58 return result; 59} 60 61static bool writeSymbol(const Source& source, IDiagnostics* diag, xml::Element* el, 62 ClassDefinition* classDef) { 63 xml::Attribute* attr = el->findAttribute(xml::kSchemaAndroid, u"name"); 64 if (!attr) { 65 diag->error(DiagMessage(source) << "<" << el->name << "> must define 'android:name'"); 66 return false; 67 } 68 69 Maybe<StringPiece16> result = extractJavaIdentifier(diag, source.withLine(el->lineNumber), 70 attr->value); 71 if (!result) { 72 return false; 73 } 74 75 std::unique_ptr<StringMember> stringMember = util::make_unique<StringMember>( 76 util::utf16ToUtf8(result.value()), util::utf16ToUtf8(attr->value)); 77 stringMember->getCommentBuilder()->appendComment(el->comment); 78 79 classDef->addMember(std::move(stringMember)); 80 return true; 81} 82 83std::unique_ptr<ClassDefinition> generateManifestClass(IDiagnostics* diag, xml::XmlResource* res) { 84 xml::Element* el = xml::findRootElement(res->root.get()); 85 if (!el) { 86 diag->error(DiagMessage(res->file.source) << "no root tag defined"); 87 return {}; 88 } 89 90 if (el->name != u"manifest" && !el->namespaceUri.empty()) { 91 diag->error(DiagMessage(res->file.source) << "no <manifest> root tag defined"); 92 return {}; 93 } 94 95 std::unique_ptr<ClassDefinition> permissionClass = 96 util::make_unique<ClassDefinition>("permission", ClassQualifier::Static, false); 97 std::unique_ptr<ClassDefinition> permissionGroupClass = 98 util::make_unique<ClassDefinition>("permission_group", ClassQualifier::Static, false); 99 100 bool error = false; 101 102 std::vector<xml::Element*> children = el->getChildElements(); 103 for (xml::Element* childEl : children) { 104 if (childEl->namespaceUri.empty()) { 105 if (childEl->name == u"permission") { 106 error |= !writeSymbol(res->file.source, diag, childEl, permissionClass.get()); 107 } else if (childEl->name == u"permission-group") { 108 error |= !writeSymbol(res->file.source, diag, childEl, permissionGroupClass.get()); 109 } 110 } 111 } 112 113 if (error) { 114 return {}; 115 } 116 117 std::unique_ptr<ClassDefinition> manifestClass = 118 util::make_unique<ClassDefinition>("Manifest", ClassQualifier::None, false); 119 manifestClass->addMember(std::move(permissionClass)); 120 manifestClass->addMember(std::move(permissionGroupClass)); 121 return manifestClass; 122} 123 124} // namespace aapt 125