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 "content/browser/download/save_file_resource_handler.h"
6
7#include "base/bind.h"
8#include "base/logging.h"
9#include "base/message_loop/message_loop.h"
10#include "base/strings/string_number_conversions.h"
11#include "content/browser/download/save_file_manager.h"
12#include "content/public/browser/browser_thread.h"
13#include "net/base/io_buffer.h"
14#include "net/url_request/redirect_info.h"
15#include "net/url_request/url_request_status.h"
16
17namespace content {
18
19SaveFileResourceHandler::SaveFileResourceHandler(net::URLRequest* request,
20                                                 int render_process_host_id,
21                                                 int render_view_id,
22                                                 const GURL& url,
23                                                 SaveFileManager* manager)
24    : ResourceHandler(request),
25      save_id_(-1),
26      render_process_id_(render_process_host_id),
27      render_view_id_(render_view_id),
28      url_(url),
29      content_length_(0),
30      save_manager_(manager) {
31}
32
33SaveFileResourceHandler::~SaveFileResourceHandler() {
34}
35
36bool SaveFileResourceHandler::OnUploadProgress(uint64 position, uint64 size) {
37  return true;
38}
39
40bool SaveFileResourceHandler::OnRequestRedirected(
41    const net::RedirectInfo& redirect_info,
42    ResourceResponse* response,
43    bool* defer) {
44  final_url_ = redirect_info.new_url;
45  return true;
46}
47
48bool SaveFileResourceHandler::OnResponseStarted(ResourceResponse* response,
49                                                bool* defer) {
50  save_id_ = save_manager_->GetNextId();
51  // |save_manager_| consumes (deletes):
52  SaveFileCreateInfo* info = new SaveFileCreateInfo;
53  info->url = url_;
54  info->final_url = final_url_;
55  info->total_bytes = content_length_;
56  info->save_id = save_id_;
57  info->render_process_id = render_process_id_;
58  info->render_view_id = render_view_id_;
59  info->request_id = GetRequestID();
60  info->content_disposition = content_disposition_;
61  info->save_source = SaveFileCreateInfo::SAVE_FILE_FROM_NET;
62  BrowserThread::PostTask(
63      BrowserThread::FILE, FROM_HERE,
64      base::Bind(&SaveFileManager::StartSave, save_manager_, info));
65  return true;
66}
67
68bool SaveFileResourceHandler::OnWillStart(const GURL& url, bool* defer) {
69  return true;
70}
71
72bool SaveFileResourceHandler::OnBeforeNetworkStart(const GURL& url,
73                                                   bool* defer) {
74  return true;
75}
76
77bool SaveFileResourceHandler::OnWillRead(scoped_refptr<net::IOBuffer>* buf,
78                                         int* buf_size,
79                                         int min_size) {
80  DCHECK(buf && buf_size);
81  if (!read_buffer_.get()) {
82    *buf_size = min_size < 0 ? kReadBufSize : min_size;
83    read_buffer_ = new net::IOBuffer(*buf_size);
84  }
85  *buf = read_buffer_.get();
86  return true;
87}
88
89bool SaveFileResourceHandler::OnReadCompleted(int bytes_read, bool* defer) {
90  DCHECK(read_buffer_.get());
91  // We are passing ownership of this buffer to the save file manager.
92  scoped_refptr<net::IOBuffer> buffer;
93  read_buffer_.swap(buffer);
94  BrowserThread::PostTask(
95      BrowserThread::FILE, FROM_HERE,
96      base::Bind(&SaveFileManager::UpdateSaveProgress,
97          save_manager_, save_id_, buffer, bytes_read));
98  return true;
99}
100
101void SaveFileResourceHandler::OnResponseCompleted(
102    const net::URLRequestStatus& status,
103    const std::string& security_info,
104    bool* defer) {
105  BrowserThread::PostTask(
106      BrowserThread::FILE, FROM_HERE,
107      base::Bind(&SaveFileManager::SaveFinished, save_manager_, save_id_, url_,
108          render_process_id_, status.is_success() && !status.is_io_pending()));
109  read_buffer_ = NULL;
110}
111
112void SaveFileResourceHandler::OnDataDownloaded(int bytes_downloaded) {
113  NOTREACHED();
114}
115
116void SaveFileResourceHandler::set_content_length(
117    const std::string& content_length) {
118  base::StringToInt64(content_length, &content_length_);
119}
120
121}  // namespace content
122