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// Copyright (c) 2012 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/chrome_net_benchmarking_message_filter.h"
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/command_line.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/browser/net/predictor.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/common/benchmarking_messages.h"
#include "chrome/common/chrome_switches.h"
#include "net/base/net_errors.h"
#include "net/disk_cache/disk_cache.h"
#include "net/dns/host_cache.h"
#include "net/dns/host_resolver.h"
#include "net/http/http_cache.h"
#include "net/url_request/url_request_context.h"
#include "net/url_request/url_request_context_getter.h"
namespace {
void ClearCacheCallback(ChromeNetBenchmarkingMessageFilter* filter,
IPC::Message* reply_msg,
int result) {
ChromeViewHostMsg_ClearCache::WriteReplyParams(reply_msg, result);
filter->Send(reply_msg);
}
} // namespace
ChromeNetBenchmarkingMessageFilter::ChromeNetBenchmarkingMessageFilter(
Profile* profile,
net::URLRequestContextGetter* request_context)
: BrowserMessageFilter(ChromeBenchmarkingMsgStart),
profile_(profile),
request_context_(request_context) {
}
ChromeNetBenchmarkingMessageFilter::~ChromeNetBenchmarkingMessageFilter() {
}
bool ChromeNetBenchmarkingMessageFilter::OnMessageReceived(
const IPC::Message& message) {
bool handled = true;
IPC_BEGIN_MESSAGE_MAP(ChromeNetBenchmarkingMessageFilter, message)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_CloseCurrentConnections,
OnCloseCurrentConnections)
IPC_MESSAGE_HANDLER_DELAY_REPLY(ChromeViewHostMsg_ClearCache, OnClearCache)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ClearHostResolverCache,
OnClearHostResolverCache)
IPC_MESSAGE_HANDLER(ChromeViewHostMsg_ClearPredictorCache,
OnClearPredictorCache)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP()
return handled;
}
void ChromeNetBenchmarkingMessageFilter::OnClearCache(IPC::Message* reply_msg) {
// This function is disabled unless the user has enabled
// benchmarking extensions.
if (!CheckBenchmarkingEnabled()) {
NOTREACHED() << "Received unexpected benchmarking IPC";
return;
}
int rv = -1;
disk_cache::Backend* backend = request_context_->GetURLRequestContext()->
http_transaction_factory()->GetCache()->GetCurrentBackend();
if (backend) {
net::CompletionCallback callback =
base::Bind(&ClearCacheCallback, base::RetainedRef(this), reply_msg);
rv = backend->DoomAllEntries(callback);
if (rv == net::ERR_IO_PENDING) {
// The callback will send the reply.
return;
}
}
ChromeViewHostMsg_ClearCache::WriteReplyParams(reply_msg, rv);
Send(reply_msg);
}
void ChromeNetBenchmarkingMessageFilter::OnClearHostResolverCache() {
// This function is disabled unless the user has enabled
// benchmarking extensions.
if (!CheckBenchmarkingEnabled()) {
NOTREACHED() << "Received unexpected benchmarking IPC";
return;
}
net::HostCache* cache =
request_context_->GetURLRequestContext()->host_resolver()->GetHostCache();
if (cache) {
cache->clear();
}
}
void ChromeNetBenchmarkingMessageFilter::OnCloseCurrentConnections() {
// This function is disabled unless the user has enabled
// benchmarking extensions.
if (!CheckBenchmarkingEnabled()) {
NOTREACHED() << "Received unexpected benchmarking IPC";
return;
}
request_context_->GetURLRequestContext()->
http_transaction_factory()->GetCache()->CloseAllConnections();
}
void ChromeNetBenchmarkingMessageFilter::OnSetCacheMode(bool enabled) {
// This function is disabled unless the user has enabled
// benchmarking extensions.
if (!CheckBenchmarkingEnabled()) {
NOTREACHED() << "Received unexpected benchmarking IPC";
return;
}
net::HttpCache::Mode mode = enabled ?
net::HttpCache::NORMAL : net::HttpCache::DISABLE;
net::HttpCache* http_cache = request_context_->GetURLRequestContext()->
http_transaction_factory()->GetCache();
http_cache->set_mode(mode);
}
void ChromeNetBenchmarkingMessageFilter::OnClearPredictorCache() {
// This function is disabled unless the user has enabled
// benchmarking extensions.
if (!CheckBenchmarkingEnabled()) {
NOTREACHED() << "Received unexpected benchmarking IPC";
return;
}
chrome_browser_net::Predictor* predictor = profile_->GetNetworkPredictor();
if (predictor)
predictor->DiscardAllResults();
}
bool ChromeNetBenchmarkingMessageFilter::CheckBenchmarkingEnabled() const {
static bool checked = false;
static bool result = false;
if (!checked) {
const base::CommandLine& command_line =
*base::CommandLine::ForCurrentProcess();
result = command_line.HasSwitch(switches::kEnableNetBenchmarking);
checked = true;
}
return result;
}
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