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