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 "java/ManifestClassGenerator.h" 18 19 #include <algorithm> 20 21 #include "Source.h" 22 #include "java/AnnotationProcessor.h" 23 #include "java/ClassDefinition.h" 24 #include "java/JavaClassGenerator.h" 25 #include "text/Unicode.h" 26 #include "util/Maybe.h" 27 #include "xml/XmlDom.h" 28 29 using ::android::StringPiece; 30 using ::aapt::text::IsJavaIdentifier; 31 32 namespace aapt { 33 34 static Maybe<StringPiece> ExtractJavaIdentifier(IDiagnostics* diag, const Source& source, 35 const std::string& value) { 36 StringPiece result = value; 37 size_t pos = value.rfind('.'); 38 if (pos != std::string::npos) { 39 result = result.substr(pos + 1); 40 } 41 42 // Normalize only the java identifier, leave the original value unchanged. 43 if (result.contains("-")) { 44 result = JavaClassGenerator::TransformToFieldName(result); 45 } 46 47 if (result.empty()) { 48 diag->Error(DiagMessage(source) << "empty symbol"); 49 return {}; 50 } 51 52 if (!IsJavaIdentifier(result)) { 53 diag->Error(DiagMessage(source) << "invalid Java identifier '" << result << "'"); 54 return {}; 55 } 56 return result; 57 } 58 59 static bool WriteSymbol(const Source& source, IDiagnostics* diag, xml::Element* el, 60 ClassDefinition* class_def) { 61 xml::Attribute* attr = el->FindAttribute(xml::kSchemaAndroid, "name"); 62 if (!attr) { 63 diag->Error(DiagMessage(source) << "<" << el->name << "> must define 'android:name'"); 64 return false; 65 } 66 67 Maybe<StringPiece> result = 68 ExtractJavaIdentifier(diag, source.WithLine(el->line_number), attr->value); 69 if (!result) { 70 return false; 71 } 72 73 std::unique_ptr<StringMember> string_member = 74 util::make_unique<StringMember>(result.value(), attr->value); 75 string_member->GetCommentBuilder()->AppendComment(el->comment); 76 77 if (class_def->AddMember(std::move(string_member)) == ClassDefinition::Result::kOverridden) { 78 diag->Warn(DiagMessage(source.WithLine(el->line_number)) 79 << "duplicate definitions of '" << result.value() << "', overriding previous"); 80 } 81 return true; 82 } 83 84 std::unique_ptr<ClassDefinition> GenerateManifestClass(IDiagnostics* diag, xml::XmlResource* res) { 85 xml::Element* el = xml::FindRootElement(res->root.get()); 86 if (!el) { 87 diag->Error(DiagMessage(res->file.source) << "no root tag defined"); 88 return {}; 89 } 90 91 if (el->name != "manifest" && !el->namespace_uri.empty()) { 92 diag->Error(DiagMessage(res->file.source) << "no <manifest> root tag defined"); 93 return {}; 94 } 95 96 std::unique_ptr<ClassDefinition> permission_class = 97 util::make_unique<ClassDefinition>("permission", ClassQualifier::kStatic, false); 98 std::unique_ptr<ClassDefinition> permission_group_class = 99 util::make_unique<ClassDefinition>("permission_group", ClassQualifier::kStatic, false); 100 101 bool error = false; 102 std::vector<xml::Element*> children = el->GetChildElements(); 103 for (xml::Element* child_el : children) { 104 if (child_el->namespace_uri.empty()) { 105 if (child_el->name == "permission") { 106 error |= !WriteSymbol(res->file.source, diag, child_el, permission_class.get()); 107 } else if (child_el->name == "permission-group") { 108 error |= !WriteSymbol(res->file.source, diag, child_el, permission_group_class.get()); 109 } 110 } 111 } 112 113 if (error) { 114 return {}; 115 } 116 117 std::unique_ptr<ClassDefinition> manifest_class = 118 util::make_unique<ClassDefinition>("Manifest", ClassQualifier::kNone, false); 119 manifest_class->AddMember(std::move(permission_class)); 120 manifest_class->AddMember(std::move(permission_group_class)); 121 return manifest_class; 122 } 123 124 } // namespace aapt 125