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// Copyright 2013 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 "chrome/browser/extensions/webstore_data_fetcher.h"
#include "base/bind.h"
#include "base/values.h"
#include "chrome/browser/extensions/webstore_data_fetcher_delegate.h"
#include "chrome/browser/safe_json_parser.h"
#include "chrome/common/extensions/extension_constants.h"
#include "net/base/load_flags.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_status.h"
namespace {
const char kInvalidWebstoreResponseError[] = "Invalid Chrome Web Store reponse";
} // namespace
namespace extensions {
WebstoreDataFetcher::WebstoreDataFetcher(
WebstoreDataFetcherDelegate* delegate,
net::URLRequestContextGetter* request_context,
const GURL& referrer_url,
const std::string webstore_item_id)
: delegate_(delegate),
request_context_(request_context),
referrer_url_(referrer_url),
id_(webstore_item_id) {
}
WebstoreDataFetcher::~WebstoreDataFetcher() {}
void WebstoreDataFetcher::Start() {
GURL webstore_data_url(extension_urls::GetWebstoreItemJsonDataURL(id_));
webstore_data_url_fetcher_.reset(net::URLFetcher::Create(
webstore_data_url, net::URLFetcher::GET, this));
webstore_data_url_fetcher_->SetRequestContext(request_context_);
webstore_data_url_fetcher_->SetReferrer(referrer_url_.spec());
webstore_data_url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SAVE_COOKIES |
net::LOAD_DISABLE_CACHE);
webstore_data_url_fetcher_->Start();
}
void WebstoreDataFetcher::OnJsonParseSuccess(
scoped_ptr<base::Value> parsed_json) {
if (!parsed_json->IsType(base::Value::TYPE_DICTIONARY)) {
OnJsonParseFailure(kInvalidWebstoreResponseError);
return;
}
delegate_->OnWebstoreResponseParseSuccess(
static_cast<base::DictionaryValue*>(parsed_json.release()));
}
void WebstoreDataFetcher::OnJsonParseFailure(
const std::string& error) {
delegate_->OnWebstoreResponseParseFailure(error);
}
void WebstoreDataFetcher::OnURLFetchComplete(const net::URLFetcher* source) {
CHECK_EQ(webstore_data_url_fetcher_.get(), source);
scoped_ptr<net::URLFetcher> fetcher(webstore_data_url_fetcher_.Pass());
if (!fetcher->GetStatus().is_success() ||
fetcher->GetResponseCode() != 200) {
delegate_->OnWebstoreRequestFailure();
return;
}
std::string webstore_json_data;
fetcher->GetResponseAsString(&webstore_json_data);
scoped_refptr<SafeJsonParser> parser =
new SafeJsonParser(webstore_json_data,
base::Bind(&WebstoreDataFetcher::OnJsonParseSuccess,
AsWeakPtr()),
base::Bind(&WebstoreDataFetcher::OnJsonParseFailure,
AsWeakPtr()));
// The parser will call us back via one of the callbacks.
parser->Start();
}
} // namespace extensions
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