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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 "net/url_request/url_request_simple_job.h"
#include <vector>
#include "base/bind.h"
#include "base/compiler_specific.h"
#include "base/message_loop/message_loop.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/http/http_request_headers.h"
#include "net/http/http_util.h"
#include "net/url_request/url_request_status.h"
namespace net {
URLRequestSimpleJob::URLRequestSimpleJob(
URLRequest* request, NetworkDelegate* network_delegate)
: URLRangeRequestJob(request, network_delegate),
data_offset_(0),
weak_factory_(this) {}
void URLRequestSimpleJob::Start() {
// Start reading asynchronously so that all error reporting and data
// callbacks happen as they would for network requests.
base::MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&URLRequestSimpleJob::StartAsync, weak_factory_.GetWeakPtr()));
}
bool URLRequestSimpleJob::GetMimeType(std::string* mime_type) const {
*mime_type = mime_type_;
return true;
}
bool URLRequestSimpleJob::GetCharset(std::string* charset) {
*charset = charset_;
return true;
}
URLRequestSimpleJob::~URLRequestSimpleJob() {}
bool URLRequestSimpleJob::ReadRawData(IOBuffer* buf, int buf_size,
int* bytes_read) {
DCHECK(bytes_read);
int remaining = byte_range_.last_byte_position() - data_offset_ + 1;
if (buf_size > remaining)
buf_size = remaining;
memcpy(buf->data(), data_.data() + data_offset_, buf_size);
data_offset_ += buf_size;
*bytes_read = buf_size;
return true;
}
void URLRequestSimpleJob::StartAsync() {
if (!request_)
return;
if (ranges().size() > 1) {
NotifyDone(URLRequestStatus(URLRequestStatus::FAILED,
ERR_REQUEST_RANGE_NOT_SATISFIABLE));
return;
}
if (!ranges().empty() && range_parse_result() == OK)
byte_range_ = ranges().front();
int result = GetData(&mime_type_, &charset_, &data_,
base::Bind(&URLRequestSimpleJob::OnGetDataCompleted,
weak_factory_.GetWeakPtr()));
if (result != ERR_IO_PENDING)
OnGetDataCompleted(result);
}
void URLRequestSimpleJob::OnGetDataCompleted(int result) {
if (result == OK) {
// Notify that the headers are complete
if (!byte_range_.ComputeBounds(data_.size())) {
NotifyDone(URLRequestStatus(URLRequestStatus::FAILED,
ERR_REQUEST_RANGE_NOT_SATISFIABLE));
return;
}
data_offset_ = byte_range_.first_byte_position();
int remaining_bytes = byte_range_.last_byte_position() -
byte_range_.first_byte_position() + 1;
set_expected_content_size(remaining_bytes);
NotifyHeadersComplete();
} else {
NotifyStartError(URLRequestStatus(URLRequestStatus::FAILED, result));
}
}
} // namespace net
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