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 #if defined(SPDY_PROXY_AUTH_ORIGIN)
  14 #include "chrome/browser/net/spdyproxy/data_reduction_proxy_settings.h"
  15 #endif  // defined(SPDY_PROXY_AUTH_ORIGIN)
  16
  17 namespace chrome {
  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::WillStartRequest(bool* defer) {
  34   ProcessDownloadRequest();
  35 }
  36
  37 void InterceptDownloadResourceThrottle::WillProcessResponse(bool* defer) {
  38   ProcessDownloadRequest();
  39 }
  40
  41 const char* InterceptDownloadResourceThrottle::GetNameForLogging() const {
  42   return "InterceptDownloadResourceThrottle";
  43 }
  44
  45 void InterceptDownloadResourceThrottle::ProcessDownloadRequest() {
  46   if (request_->method() != net::HttpRequestHeaders::kGetMethod)
  47     return;
  48
  49   // In general, if the request uses HTTP authorization, either with the origin
  50   // or a proxy, then the network stack should handle the download. The one
  51   // exception is a request that is fetched via the Chrome Proxy and does not
  52   // authenticate with the origin.
  53   if (request_->response_info().did_use_http_auth) {
  54 #if defined(SPDY_PROXY_AUTH_ORIGIN)
  55     net::HttpRequestHeaders headers;
  56     request_->GetFullRequestHeaders(&headers);
  57     if (headers.HasHeader(net::HttpRequestHeaders::kAuthorization) ||
  58         !DataReductionProxySettings::WasFetchedViaProxy(
  59             request_->response_info().headers)) {
  60       return;
  61     }
  62 #else
  63     return;
  64 #endif
  65   }
  66
  67   if (request_->url_chain().empty())
  68     return;
  69
  70   GURL url = request_->url_chain().back();
  71   if (!url.SchemeIsHTTPOrHTTPS())
  72     return;
  73
  74   content::DownloadControllerAndroid::Get()->CreateGETDownload(
  75       render_process_id_, render_view_id_, request_id_);
  76   controller()->Cancel();
  77 }
  78
  79 }  // namespace chrome