content/browser/download/save_file_resource_handler.cc

   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
  17 namespace content {
  18
  19 SaveFileResourceHandler::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
  33 SaveFileResourceHandler::~SaveFileResourceHandler() {
  34 }
  35
  36 bool SaveFileResourceHandler::OnUploadProgress(uint64 position, uint64 size) {
  37   return true;
  38 }
  39
  40 bool 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
  48 bool 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
  68 bool SaveFileResourceHandler::OnWillStart(const GURL& url, bool* defer) {
  69   return true;
  70 }
  71
  72 bool SaveFileResourceHandler::OnBeforeNetworkStart(const GURL& url,
  73                                                    bool* defer) {
  74   return true;
  75 }
  76
  77 bool 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
  89 bool 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
 101 void 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
 112 void SaveFileResourceHandler::OnDataDownloaded(int bytes_downloaded) {
 113   NOTREACHED();
 114 }
 115
 116 void SaveFileResourceHandler::set_content_length(
 117     const std::string& content_length) {
 118   base::StringToInt64(content_length, &content_length_);
 119 }
 120
 121 }  // namespace content