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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 "chrome/browser/devtools/protocol_http_request.h"
#include "base/threading/thread.h"
#include "chrome/browser/profiles/profile.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_context_getter.h"
using content::BrowserThread;
namespace {
const int kBufferSize = 16 * 1024;
} // namespace
ProtocolHttpRequest::ProtocolHttpRequest(
Profile* profile,
const std::string& url,
const Callback& callback)
: request_context_(profile->GetRequestContext()),
url_(url),
callback_(callback),
result_(net::OK) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (!url_.is_valid()) {
data_ = "Invalid URL: " + url_.possibly_invalid_spec();
result_ = net::ERR_FAILED;
RespondOnUIThread();
return;
}
BrowserThread::PostTask(
BrowserThread::IO, FROM_HERE,
base::Bind(&ProtocolHttpRequest::Start, base::Unretained(this)));
}
ProtocolHttpRequest::~ProtocolHttpRequest() {
}
void ProtocolHttpRequest::Start() {
request_ = new net::URLRequest(url_, this,
request_context_->GetURLRequestContext());
io_buffer_ = new net::IOBuffer(kBufferSize);
request_->Start();
}
void ProtocolHttpRequest::OnResponseStarted(net::URLRequest* request) {
if (!request->status().is_success()) {
data_ = "HTTP 404";
result_ = net::ERR_FAILED;
}
int bytes_read = 0;
if (request->status().is_success())
request->Read(io_buffer_.get(), kBufferSize, &bytes_read);
OnReadCompleted(request, bytes_read);
}
void ProtocolHttpRequest::OnReadCompleted(net::URLRequest* request,
int bytes_read) {
do {
if (!request->status().is_success() || bytes_read <= 0)
break;
data_ += std::string(io_buffer_->data(), bytes_read);
} while (request->Read(io_buffer_, kBufferSize, &bytes_read));
if (!request->status().is_io_pending()) {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
base::Bind(&ProtocolHttpRequest::RespondOnUIThread,
base::Unretained(this)));
delete request;
}
}
void ProtocolHttpRequest::RespondOnUIThread() {
callback_.Run(result_, data_);
delete this;
}
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