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/*
* 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 "java/ManifestClassGenerator.h"
#include <algorithm>
#include "Source.h"
#include "java/AnnotationProcessor.h"
#include "java/ClassDefinition.h"
#include "util/Maybe.h"
#include "xml/XmlDom.h"
using android::StringPiece;
namespace aapt {
static Maybe<StringPiece> ExtractJavaIdentifier(IDiagnostics* diag,
const Source& source,
const StringPiece& value) {
const StringPiece sep = ".";
auto iter = std::find_end(value.begin(), value.end(), sep.begin(), sep.end());
StringPiece result;
if (iter != value.end()) {
result.assign(iter + sep.size(), value.end() - (iter + sep.size()));
} else {
result = value;
}
if (result.empty()) {
diag->Error(DiagMessage(source) << "empty symbol");
return {};
}
iter = util::FindNonAlphaNumericAndNotInSet(result, "_");
if (iter != result.end()) {
diag->Error(DiagMessage(source) << "invalid character '"
<< StringPiece(iter, 1) << "' in '"
<< result << "'");
return {};
}
if (*result.begin() >= '0' && *result.begin() <= '9') {
diag->Error(DiagMessage(source) << "symbol can not start with a digit");
return {};
}
return result;
}
static bool WriteSymbol(const Source& source, IDiagnostics* diag,
xml::Element* el, ClassDefinition* class_def) {
xml::Attribute* attr = el->FindAttribute(xml::kSchemaAndroid, "name");
if (!attr) {
diag->Error(DiagMessage(source) << "<" << el->name
<< "> must define 'android:name'");
return false;
}
Maybe<StringPiece> result = ExtractJavaIdentifier(
diag, source.WithLine(el->line_number), attr->value);
if (!result) {
return false;
}
std::unique_ptr<StringMember> string_member =
util::make_unique<StringMember>(result.value(), attr->value);
string_member->GetCommentBuilder()->AppendComment(el->comment);
if (class_def->AddMember(std::move(string_member)) == ClassDefinition::Result::kOverridden) {
diag->Warn(DiagMessage(source.WithLine(el->line_number))
<< "duplicate definitions of '" << result.value() << "', overriding previous");
}
return true;
}
std::unique_ptr<ClassDefinition> GenerateManifestClass(IDiagnostics* diag,
xml::XmlResource* res) {
xml::Element* el = xml::FindRootElement(res->root.get());
if (!el) {
diag->Error(DiagMessage(res->file.source) << "no root tag defined");
return {};
}
if (el->name != "manifest" && !el->namespace_uri.empty()) {
diag->Error(DiagMessage(res->file.source)
<< "no <manifest> root tag defined");
return {};
}
std::unique_ptr<ClassDefinition> permission_class =
util::make_unique<ClassDefinition>("permission", ClassQualifier::kStatic, false);
std::unique_ptr<ClassDefinition> permission_group_class =
util::make_unique<ClassDefinition>("permission_group", ClassQualifier::kStatic, false);
bool error = false;
std::vector<xml::Element*> children = el->GetChildElements();
for (xml::Element* child_el : children) {
if (child_el->namespace_uri.empty()) {
if (child_el->name == "permission") {
error |= !WriteSymbol(res->file.source, diag, child_el,
permission_class.get());
} else if (child_el->name == "permission-group") {
error |= !WriteSymbol(res->file.source, diag, child_el,
permission_group_class.get());
}
}
}
if (error) {
return {};
}
std::unique_ptr<ClassDefinition> manifest_class =
util::make_unique<ClassDefinition>("Manifest", ClassQualifier::kNone, false);
manifest_class->AddMember(std::move(permission_class));
manifest_class->AddMember(std::move(permission_group_class));
return manifest_class;
}
} // namespace aapt
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