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// Copyright (c) 2010 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/debugger/devtools_netlog_observer.h"
#include "base/string_util.h"
#include "chrome/browser/io_thread.h"
#include "chrome/common/resource_response.h"
#include "net/base/load_flags.h"
#include "net/http/http_net_log_params.h"
#include "net/http/http_response_headers.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_netlog_params.h"
#include "webkit/glue/resource_loader_bridge.h"
const size_t kMaxNumEntries = 1000;
DevToolsNetLogObserver* DevToolsNetLogObserver::instance_ = NULL;
DevToolsNetLogObserver::DevToolsNetLogObserver(ChromeNetLog* chrome_net_log)
: ChromeNetLog::Observer(net::NetLog::LOG_ALL_BUT_BYTES),
chrome_net_log_(chrome_net_log) {
chrome_net_log_->AddObserver(this);
}
DevToolsNetLogObserver::~DevToolsNetLogObserver() {
chrome_net_log_->RemoveObserver(this);
}
DevToolsNetLogObserver::ResourceInfo*
DevToolsNetLogObserver::GetResourceInfo(uint32 id) {
RequestToInfoMap::iterator it = request_to_info_.find(id);
if (it != request_to_info_.end())
return it->second;
return NULL;
}
void DevToolsNetLogObserver::OnAddEntry(net::NetLog::EventType type,
const base::TimeTicks& time,
const net::NetLog::Source& source,
net::NetLog::EventPhase phase,
net::NetLog::EventParameters* params) {
if (type == net::NetLog::TYPE_URL_REQUEST_START_JOB) {
if (phase != net::NetLog::PHASE_BEGIN)
return;
int load_flags = static_cast<URLRequestStartEventParameters*>(params)->
load_flags();
if (!(load_flags & net::LOAD_REPORT_RAW_HEADERS))
return;
if (request_to_info_.size() > kMaxNumEntries) {
LOG(WARNING) << "The raw headers observer url request count has grown "
"larger than expected, resetting";
request_to_info_.clear();
}
scoped_refptr<ResourceInfo> new_record(new ResourceInfo());
// We may encounter multiple PHASE_BEGIN for same resource in case of
// redirect -- if so, replace the old record to avoid keeping headers
// from different requests.
std::pair<RequestToInfoMap::iterator, bool> inserted =
request_to_info_.insert(std::make_pair(source.id, new_record));
if (!inserted.second)
inserted.first->second = new_record;
return;
}
if (type == net::NetLog::TYPE_REQUEST_ALIVE &&
phase == net::NetLog::PHASE_END) {
request_to_info_.erase(source.id);
return;
}
if (type != net::NetLog::TYPE_HTTP_TRANSACTION_SEND_REQUEST_HEADERS &&
type != net::NetLog::TYPE_HTTP_TRANSACTION_READ_RESPONSE_HEADERS)
return;
ResourceInfo* info = GetResourceInfo(source.id);
if (!info)
return;
switch (type) {
case net::NetLog::TYPE_HTTP_TRANSACTION_SEND_REQUEST_HEADERS: {
const net::HttpRequestHeaders &request_headers =
static_cast<net::NetLogHttpRequestParameter*>(params)->GetHeaders();
for (net::HttpRequestHeaders::Iterator it(request_headers);
it.GetNext();) {
info->request_headers.push_back(std::make_pair(it.name(),
it.value()));
}
break;
}
case net::NetLog::TYPE_HTTP_TRANSACTION_READ_RESPONSE_HEADERS: {
const net::HttpResponseHeaders& response_headers =
static_cast<net::NetLogHttpResponseParameter*>(params)->GetHeaders();
info->http_status_code = response_headers.response_code();
info->http_status_text = response_headers.GetStatusText();
std::string name, value;
for (void* it = NULL;
response_headers.EnumerateHeaderLines(&it, &name, &value); ) {
info->response_headers.push_back(std::make_pair(name, value));
}
break;
}
default:
break;
}
}
void DevToolsNetLogObserver::Attach(IOThread* io_thread) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
DCHECK(!instance_);
instance_ = new DevToolsNetLogObserver(io_thread->globals()->net_log.get());
}
void DevToolsNetLogObserver::Detach() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
DCHECK(instance_);
delete instance_;
instance_ = NULL;
}
DevToolsNetLogObserver* DevToolsNetLogObserver::GetInstance() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
return instance_;
}
// static
void DevToolsNetLogObserver::PopulateResponseInfo(URLRequest* request,
ResourceResponse* response) {
if (!(request->load_flags() & net::LOAD_REPORT_RAW_HEADERS))
return;
uint32 source_id = request->net_log().source().id;
DevToolsNetLogObserver* dev_tools_net_log_observer =
DevToolsNetLogObserver::GetInstance();
if (!dev_tools_net_log_observer)
return;
response->response_head.devtools_info =
dev_tools_net_log_observer->GetResourceInfo(source_id);
}
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