cc5609d8e4
Defines a set of actions to perform on XML elements defined by their hierarchy, eg: manifest -> application -> activity. This can be used to easily add rules to check more tags in AndroidManifest.xml Change-Id: I76c6916a98b6403075a7e56e16230979dc6cbee1
113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
/*
|
|
* Copyright (C) 2016 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 "xml/XmlActionExecutor.h"
|
|
|
|
namespace aapt {
|
|
namespace xml {
|
|
|
|
static bool wrapperOne(XmlNodeAction::ActionFunc& f, Element* el, SourcePathDiagnostics*) {
|
|
return f(el);
|
|
}
|
|
|
|
static bool wrapperTwo(XmlNodeAction::ActionFuncWithDiag& f, Element* el,
|
|
SourcePathDiagnostics* diag) {
|
|
return f(el, diag);
|
|
}
|
|
|
|
void XmlNodeAction::action(XmlNodeAction::ActionFunc f) {
|
|
mActions.emplace_back(std::bind(wrapperOne, std::move(f),
|
|
std::placeholders::_1,
|
|
std::placeholders::_2));
|
|
}
|
|
|
|
void XmlNodeAction::action(XmlNodeAction::ActionFuncWithDiag f) {
|
|
mActions.emplace_back(std::bind(wrapperTwo, std::move(f),
|
|
std::placeholders::_1,
|
|
std::placeholders::_2));
|
|
}
|
|
|
|
static void printElementToDiagMessage(const Element* el, DiagMessage* msg) {
|
|
*msg << "<";
|
|
if (!el->namespaceUri.empty()) {
|
|
*msg << el->namespaceUri << ":";
|
|
}
|
|
*msg << el->name << ">";
|
|
}
|
|
|
|
bool XmlNodeAction::execute(XmlActionExecutorPolicy policy, SourcePathDiagnostics* diag,
|
|
Element* el) const {
|
|
bool error = false;
|
|
for (const ActionFuncWithDiag& action : mActions) {
|
|
error |= !action(el, diag);
|
|
}
|
|
|
|
for (Element* childEl : el->getChildElements()) {
|
|
if (childEl->namespaceUri.empty()) {
|
|
std::map<std::u16string, XmlNodeAction>::const_iterator iter =
|
|
mMap.find(childEl->name);
|
|
if (iter != mMap.end()) {
|
|
error |= !iter->second.execute(policy, diag, childEl);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (policy == XmlActionExecutorPolicy::Whitelist) {
|
|
DiagMessage errorMsg(childEl->lineNumber);
|
|
errorMsg << "unknown element ";
|
|
printElementToDiagMessage(childEl, &errorMsg);
|
|
errorMsg << " found";
|
|
diag->error(errorMsg);
|
|
error = true;
|
|
}
|
|
}
|
|
return !error;
|
|
}
|
|
|
|
bool XmlActionExecutor::execute(XmlActionExecutorPolicy policy, IDiagnostics* diag,
|
|
XmlResource* doc) const {
|
|
SourcePathDiagnostics sourceDiag(doc->file.source, diag);
|
|
|
|
Element* el = findRootElement(doc);
|
|
if (!el) {
|
|
if (policy == XmlActionExecutorPolicy::Whitelist) {
|
|
sourceDiag.error(DiagMessage() << "no root XML tag found");
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
if (el->namespaceUri.empty()) {
|
|
std::map<std::u16string, XmlNodeAction>::const_iterator iter = mMap.find(el->name);
|
|
if (iter != mMap.end()) {
|
|
return iter->second.execute(policy, &sourceDiag, el);
|
|
}
|
|
}
|
|
|
|
if (policy == XmlActionExecutorPolicy::Whitelist) {
|
|
DiagMessage errorMsg(el->lineNumber);
|
|
errorMsg << "unknown element ";
|
|
printElementToDiagMessage(el, &errorMsg);
|
|
errorMsg << " found";
|
|
sourceDiag.error(errorMsg);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
} // namespace xml
|
|
} // namespace aapt
|