1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "net/url_request/url_request_simple_job.h"
6
7 #include "base/bind.h"
8 #include "base/compiler_specific.h"
9 #include "base/message_loop/message_loop.h"
10 #include "net/base/io_buffer.h"
11 #include "net/base/net_errors.h"
12 #include "net/url_request/url_request_status.h"
13
14 namespace net {
15
URLRequestSimpleJob(URLRequest * request,NetworkDelegate * network_delegate)16 URLRequestSimpleJob::URLRequestSimpleJob(
17 URLRequest* request, NetworkDelegate* network_delegate)
18 : URLRequestJob(request, network_delegate),
19 data_offset_(0),
20 weak_factory_(this) {}
21
Start()22 void URLRequestSimpleJob::Start() {
23 // Start reading asynchronously so that all error reporting and data
24 // callbacks happen as they would for network requests.
25 base::MessageLoop::current()->PostTask(
26 FROM_HERE,
27 base::Bind(&URLRequestSimpleJob::StartAsync, weak_factory_.GetWeakPtr()));
28 }
29
GetMimeType(std::string * mime_type) const30 bool URLRequestSimpleJob::GetMimeType(std::string* mime_type) const {
31 *mime_type = mime_type_;
32 return true;
33 }
34
GetCharset(std::string * charset)35 bool URLRequestSimpleJob::GetCharset(std::string* charset) {
36 *charset = charset_;
37 return true;
38 }
39
~URLRequestSimpleJob()40 URLRequestSimpleJob::~URLRequestSimpleJob() {}
41
ReadRawData(IOBuffer * buf,int buf_size,int * bytes_read)42 bool URLRequestSimpleJob::ReadRawData(IOBuffer* buf, int buf_size,
43 int* bytes_read) {
44 DCHECK(bytes_read);
45 int remaining = static_cast<int>(data_.size()) - data_offset_;
46 if (buf_size > remaining)
47 buf_size = remaining;
48 memcpy(buf->data(), data_.data() + data_offset_, buf_size);
49 data_offset_ += buf_size;
50 *bytes_read = buf_size;
51 return true;
52 }
53
StartAsync()54 void URLRequestSimpleJob::StartAsync() {
55 if (!request_)
56 return;
57
58 int result = GetData(&mime_type_, &charset_, &data_,
59 base::Bind(&URLRequestSimpleJob::OnGetDataCompleted,
60 weak_factory_.GetWeakPtr()));
61 if (result != ERR_IO_PENDING)
62 OnGetDataCompleted(result);
63 }
64
OnGetDataCompleted(int result)65 void URLRequestSimpleJob::OnGetDataCompleted(int result) {
66 if (result == OK) {
67 // Notify that the headers are complete
68 NotifyHeadersComplete();
69 } else {
70 NotifyStartError(URLRequestStatus(URLRequestStatus::FAILED, result));
71 }
72 }
73
74 } // namespace net
75