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 "components/data_reduction_proxy/common/data_reduction_proxy_headers.h"
   8 #include "content/public/browser/android/download_controller_android.h"
   9 #include "content/public/browser/resource_controller.h"
  10 #include "net/http/http_request_headers.h"
  11 #include "net/http/http_response_headers.h"
  12 #include "net/url_request/url_request.h"
  13
  14 namespace chrome {
  15
  16 static const char kOmaDrmContentMime[]  = "application/vnd.oma.drm.content";
  17 static const char kOmaDrmMessageMime[]  = "application/vnd.oma.drm.message";
  18
  19 InterceptDownloadResourceThrottle::InterceptDownloadResourceThrottle(
  20     net::URLRequest* request,
  21     int render_process_id,
  22     int render_view_id,
  23     int request_id)
  24     : request_(request),
  25       render_process_id_(render_process_id),
  26       render_view_id_(render_view_id),
  27       request_id_(request_id) {
  28 }
  29
  30 InterceptDownloadResourceThrottle::~InterceptDownloadResourceThrottle() {
  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_->url_chain().empty())
  43     return;
  44
  45   GURL url = request_->url_chain().back();
  46   if (!url.SchemeIsHTTPOrHTTPS())
  47     return;
  48
  49   if (request_->method() != net::HttpRequestHeaders::kGetMethod)
  50     return;
  51
  52   net::HttpRequestHeaders headers;
  53   if (!request_->GetFullRequestHeaders(&headers))
  54     return;
  55
  56   // In general, if the request uses HTTP authorization, either with the origin
  57   // or a proxy, then the network stack should handle the download. The one
  58   // exception is a request that is fetched via the Chrome Proxy and does not
  59   // authenticate with the origin.
  60   if (request_->response_info().did_use_http_auth) {
  61 #if defined(SPDY_PROXY_AUTH_ORIGIN)
  62     if (headers.HasHeader(net::HttpRequestHeaders::kAuthorization) ||
  63         !(request_->response_info().headers &&
  64             data_reduction_proxy::HasDataReductionProxyViaHeader(
  65                 request_->response_info().headers))) {
  66       return;
  67     }
  68 #else
  69     return;
  70 #endif
  71   }
  72
  73   // For OMA DRM downloads, Android Download Manager doesn't handle them
  74   // correctly. Use chromium network stack instead. http://crbug.com/382698.
  75   std::string mime;
  76   request_->GetMimeType(&mime);
  77   if (!mime.compare(kOmaDrmContentMime) || !mime.compare(kOmaDrmMessageMime))
  78     return;
  79
  80   content::DownloadControllerAndroid::Get()->CreateGETDownload(
  81       render_process_id_, render_view_id_, request_id_);
  82   controller()->Cancel();
  83 }
  84
  85 }  // namespace chrome