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      1 // Copyright (c) 2011 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 "webkit/glue/alt_error_page_resource_fetcher.h"
      6 
      7 #include "base/callback.h"
      8 #include "webkit/glue/resource_fetcher.h"
      9 
     10 using WebKit::WebFrame;
     11 using WebKit::WebURLError;
     12 using WebKit::WebURLRequest;
     13 using WebKit::WebURLResponse;
     14 
     15 namespace webkit_glue {
     16 
     17 // Number of seconds to wait for the alternate error page server.  If it takes
     18 // too long, just use the local error page.
     19 static const int kDownloadTimeoutSec = 3;
     20 
     21 AltErrorPageResourceFetcher::AltErrorPageResourceFetcher(
     22     const GURL& url,
     23     WebFrame* frame,
     24     const WebURLError& original_error,
     25     Callback* callback)
     26     : frame_(frame),
     27       callback_(callback),
     28       original_error_(original_error) {
     29   fetcher_.reset(new ResourceFetcherWithTimeout(
     30       url, frame, WebURLRequest::TargetIsMainFrame, kDownloadTimeoutSec,
     31       NewCallback(this, &AltErrorPageResourceFetcher::OnURLFetchComplete)));
     32 }
     33 
     34 AltErrorPageResourceFetcher::~AltErrorPageResourceFetcher() {
     35 }
     36 
     37 void AltErrorPageResourceFetcher::Cancel() {
     38   fetcher_->Cancel();
     39 }
     40 
     41 void AltErrorPageResourceFetcher::OnURLFetchComplete(
     42     const WebURLResponse& response,
     43     const std::string& data) {
     44   // A null response indicates a network error.
     45   if (!response.isNull() && response.httpStatusCode() == 200) {
     46     callback_->Run(frame_, original_error_, data);
     47   } else {
     48     callback_->Run(frame_, original_error_, std::string());
     49   }
     50 }
     51 
     52 }  // namespace webkit_glue
     53