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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "extensions/common/manifest_handlers/web_accessible_resources_info.h"
#include <stddef.h>
#include "base/memory/scoped_ptr.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/values.h"
#include "extensions/common/error_utils.h"
#include "extensions/common/manifest.h"
#include "extensions/common/manifest_constants.h"
namespace extensions {
namespace keys = manifest_keys;
namespace errors = manifest_errors;
namespace {
const WebAccessibleResourcesInfo* GetResourcesInfo(const Extension* extension) {
return static_cast<WebAccessibleResourcesInfo*>(
extension->GetManifestData(keys::kWebAccessibleResources));
}
} // namespace
WebAccessibleResourcesInfo::WebAccessibleResourcesInfo() {
}
WebAccessibleResourcesInfo::~WebAccessibleResourcesInfo() {
}
// static
bool WebAccessibleResourcesInfo::IsResourceWebAccessible(
const Extension* extension,
const std::string& relative_path) {
// For old manifest versions which do not specify web_accessible_resources
// we always allow resource loads.
if (extension->manifest_version() < 2 &&
!WebAccessibleResourcesInfo::HasWebAccessibleResources(extension))
return true;
const WebAccessibleResourcesInfo* info = GetResourcesInfo(extension);
return info &&
extension->ResourceMatches(
info->web_accessible_resources_, relative_path);
}
// static
bool WebAccessibleResourcesInfo::HasWebAccessibleResources(
const Extension* extension) {
const WebAccessibleResourcesInfo* info = GetResourcesInfo(extension);
return info && info->web_accessible_resources_.size() > 0;
}
WebAccessibleResourcesHandler::WebAccessibleResourcesHandler() {
}
WebAccessibleResourcesHandler::~WebAccessibleResourcesHandler() {
}
bool WebAccessibleResourcesHandler::Parse(Extension* extension,
base::string16* error) {
scoped_ptr<WebAccessibleResourcesInfo> info(new WebAccessibleResourcesInfo);
const base::ListValue* list_value = NULL;
if (!extension->manifest()->GetList(keys::kWebAccessibleResources,
&list_value)) {
*error = base::ASCIIToUTF16(errors::kInvalidWebAccessibleResourcesList);
return false;
}
for (size_t i = 0; i < list_value->GetSize(); ++i) {
std::string relative_path;
if (!list_value->GetString(i, &relative_path)) {
*error = ErrorUtils::FormatErrorMessageUTF16(
errors::kInvalidWebAccessibleResource, base::SizeTToString(i));
return false;
}
URLPattern pattern(URLPattern::SCHEME_EXTENSION);
if (pattern.Parse(extension->url().spec()) != URLPattern::PARSE_SUCCESS) {
*error = ErrorUtils::FormatErrorMessageUTF16(
errors::kInvalidURLPatternError, extension->url().spec());
return false;
}
while (relative_path[0] == '/')
relative_path = relative_path.substr(1, relative_path.length() - 1);
pattern.SetPath(pattern.path() + relative_path);
info->web_accessible_resources_.AddPattern(pattern);
}
extension->SetManifestData(keys::kWebAccessibleResources, info.release());
return true;
}
const std::vector<std::string> WebAccessibleResourcesHandler::Keys() const {
return SingleKey(keys::kWebAccessibleResources);
}
} // namespace extensions
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