chrome/browser/android/intercept_download_resource_throttle.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 "chrome/browser/android/intercept_download_resource_throttle.h"
   6
   7 #include "content/public/browser/android/download_controller_android.h"
   8 #include "content/public/browser/resource_controller.h"
   9 #include "net/http/http_request_headers.h"
  10 #include "net/http/http_response_headers.h"
  11 #include "net/url_request/url_request.h"
  12
  13 namespace chrome {
  14
  15 InterceptDownloadResourceThrottle::InterceptDownloadResourceThrottle(
  16     net::URLRequest* request,
  17     int render_process_id,
  18     int render_view_id,
  19     int request_id)
  20     : request_(request),
  21       render_process_id_(render_process_id),
  22       render_view_id_(render_view_id),
  23       request_id_(request_id) {
  24 }
  25
  26 InterceptDownloadResourceThrottle::~InterceptDownloadResourceThrottle() {
  27 }
  28
  29 void InterceptDownloadResourceThrottle::WillStartRequest(bool* defer) {
  30   ProcessDownloadRequest();
  31 }
  32
  33 void InterceptDownloadResourceThrottle::WillProcessResponse(bool* defer) {
  34   ProcessDownloadRequest();
  35 }
  36
  37 const char* InterceptDownloadResourceThrottle::GetNameForLogging() const {
  38   return "InterceptDownloadResourceThrottle";
  39 }
  40
  41 void InterceptDownloadResourceThrottle::ProcessDownloadRequest() {
  42   if (request_->method() != net::HttpRequestHeaders::kGetMethod)
  43     return;
  44
  45   // In general, if the request uses HTTP authorization, either with the origin
  46   // or a proxy, then the network stack should handle the download. The one
  47   // exception is a request that is fetched via the Chrome Proxy and does not
  48   // authenticate with the origin.
  49   if (request_->response_info().did_use_http_auth) {
  50 #if defined(SPDY_PROXY_AUTH_ORIGIN)
  51     net::HttpRequestHeaders headers;
  52     request_->GetFullRequestHeaders(&headers);
  53     if (headers.HasHeader(net::HttpRequestHeaders::kAuthorization) ||
  54         !(request_->response_info().headers &&
  55             request_->response_info().headers->
  56                 IsDataReductionProxyResponse())) {
  57       return;
  58     }
  59 #else
  60     return;
  61 #endif
  62   }
  63
  64   if (request_->url_chain().empty())
  65     return;
  66
  67   GURL url = request_->url_chain().back();
  68   if (!url.SchemeIsHTTPOrHTTPS())
  69     return;
  70
  71   content::DownloadControllerAndroid::Get()->CreateGETDownload(
  72       render_process_id_, render_view_id_, request_id_);
  73   controller()->Cancel();
  74 }
  75
  76 }  // namespace chrome