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
ExtractJavaIdentifier(IDiagnostics * diag,const Source & source,const std::string & value)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
WriteSymbol(const Source & source,IDiagnostics * diag,xml::Element * el,ClassDefinition * class_def)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
GenerateManifestClass(IDiagnostics * diag,xml::XmlResource * res)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