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// Copyright (c) 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 "chromeos/network/dhcp_proxy_script_fetcher_chromeos.h"
#include "base/location.h"
#include "base/task_runner_util.h"
#include "chromeos/network/network_event_log.h"
#include "chromeos/network/network_handler.h"
#include "chromeos/network/network_state.h"
#include "chromeos/network/network_state_handler.h"
#include "net/proxy/proxy_script_fetcher.h"
#include "net/proxy/proxy_script_fetcher_impl.h"
#include "net/url_request/url_request_context.h"
namespace chromeos {
namespace {
// Runs on NetworkHandler::Get()->message_loop().
std::string GetPacUrlFromDefaultNetwork() {
if (!NetworkHandler::IsInitialized())
return std::string();
const NetworkState* default_network =
NetworkHandler::Get()->network_state_handler()->DefaultNetwork();
if (default_network)
return default_network->web_proxy_auto_discovery_url().spec();
return std::string();
}
} // namespace
DhcpProxyScriptFetcherChromeos::DhcpProxyScriptFetcherChromeos(
net::URLRequestContext* url_request_context)
: url_request_context_(url_request_context),
weak_ptr_factory_(this) {
DCHECK(url_request_context_);
proxy_script_fetcher_.reset(
new net::ProxyScriptFetcherImpl(url_request_context_));
if (NetworkHandler::IsInitialized())
network_handler_task_runner_ = NetworkHandler::Get()->task_runner();
}
DhcpProxyScriptFetcherChromeos::~DhcpProxyScriptFetcherChromeos() {
}
int DhcpProxyScriptFetcherChromeos::Fetch(
base::string16* utf16_text,
const net::CompletionCallback& callback) {
if (!network_handler_task_runner_.get())
return net::ERR_PAC_NOT_IN_DHCP;
CHECK(!callback.is_null());
base::PostTaskAndReplyWithResult(
network_handler_task_runner_.get(), FROM_HERE,
base::Bind(&GetPacUrlFromDefaultNetwork),
base::Bind(&DhcpProxyScriptFetcherChromeos::ContinueFetch,
weak_ptr_factory_.GetWeakPtr(), utf16_text, callback));
return net::ERR_IO_PENDING;
}
void DhcpProxyScriptFetcherChromeos::Cancel() {
proxy_script_fetcher_->Cancel();
// Invalidate any pending callbacks (i.e. calls to ContinueFetch).
weak_ptr_factory_.InvalidateWeakPtrs();
}
const GURL& DhcpProxyScriptFetcherChromeos::GetPacURL() const {
return pac_url_;
}
std::string DhcpProxyScriptFetcherChromeos::GetFetcherName() const {
return "chromeos";
}
void DhcpProxyScriptFetcherChromeos::ContinueFetch(
base::string16* utf16_text,
net::CompletionCallback callback,
std::string pac_url) {
NET_LOG_EVENT("DhcpProxyScriptFetcher", pac_url);
pac_url_ = GURL(pac_url);
if (pac_url_.is_empty()) {
callback.Run(net::ERR_PAC_NOT_IN_DHCP);
return;
}
int res = proxy_script_fetcher_->Fetch(pac_url_, utf16_text, callback);
if (res != net::ERR_IO_PENDING)
callback.Run(res);
}
} // namespace chromeos
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