content/test/weburl_loader_mock_factory.cc

   1 // Copyright 2013 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/test/weburl_loader_mock_factory.h"
   6
   7 #include "base/files/file_util.h"
   8 #include "base/logging.h"
   9 #include "base/run_loop.h"
  10 #include "content/test/weburl_loader_mock.h"
  11 #include "third_party/WebKit/public/platform/WebString.h"
  12 #include "third_party/WebKit/public/platform/WebURLError.h"
  13 #include "third_party/WebKit/public/platform/WebURLRequest.h"
  14 #include "third_party/WebKit/public/platform/WebURLResponse.h"
  15 #include "third_party/WebKit/public/web/WebCache.h"
  16
  17 using blink::WebCache;
  18 using blink::WebData;
  19 using blink::WebString;
  20 using blink::WebURL;
  21 using blink::WebURLError;
  22 using blink::WebURLLoader;
  23 using blink::WebURLRequest;
  24 using blink::WebURLResponse;
  25
  26 WebURLLoaderMockFactory::WebURLLoaderMockFactory() : delegate_(nullptr) {}
  27
  28 WebURLLoaderMockFactory::~WebURLLoaderMockFactory() {}
  29
  30 void WebURLLoaderMockFactory::RegisterURL(const WebURL& url,
  31                                           const WebURLResponse& response,
  32                                           const WebString& file_path) {
  33   ResponseInfo response_info;
  34   response_info.response = response;
  35   if (!file_path.isNull() && !file_path.isEmpty()) {
  36 #if defined(OS_POSIX)
  37     // TODO(jcivelli): On Linux, UTF8 might not be correct.
  38     response_info.file_path =
  39         base::FilePath(static_cast<std::string>(file_path.utf8()));
  40 #elif defined(OS_WIN)
  41     base::string16 file_path_16 = file_path;
  42     response_info.file_path = base::FilePath(std::wstring(
  43         file_path_16.data(), file_path_16.length()));
  44 #endif
  45     DCHECK(base::PathExists(response_info.file_path))
  46         << response_info.file_path.MaybeAsASCII() << " does not exist.";
  47   }
  48
  49   DCHECK(url_to_reponse_info_.find(url) == url_to_reponse_info_.end());
  50   url_to_reponse_info_[url] = response_info;
  51 }
  52
  53
  54 void WebURLLoaderMockFactory::RegisterErrorURL(const WebURL& url,
  55                                                const WebURLResponse& response,
  56                                                const WebURLError& error) {
  57   DCHECK(url_to_reponse_info_.find(url) == url_to_reponse_info_.end());
  58   RegisterURL(url, response, WebString());
  59   url_to_error_info_[url] = error;
  60 }
  61
  62 void WebURLLoaderMockFactory::UnregisterURL(const blink::WebURL& url) {
  63   URLToResponseMap::iterator iter = url_to_reponse_info_.find(url);
  64   DCHECK(iter != url_to_reponse_info_.end());
  65   url_to_reponse_info_.erase(iter);
  66
  67   URLToErrorMap::iterator error_iter = url_to_error_info_.find(url);
  68   if (error_iter != url_to_error_info_.end())
  69     url_to_error_info_.erase(error_iter);
  70 }
  71
  72 void WebURLLoaderMockFactory::UnregisterAllURLs() {
  73   url_to_reponse_info_.clear();
  74   url_to_error_info_.clear();
  75   WebCache::clear();
  76 }
  77
  78 void WebURLLoaderMockFactory::ServeAsynchronousRequests() {
  79   // Serving a request might trigger more requests, so we cannot iterate on
  80   // pending_loaders_ as it might get modified.
  81   while (!pending_loaders_.empty()) {
  82     LoaderToRequestMap::iterator iter = pending_loaders_.begin();
  83     WebURLLoaderMock* loader = iter->first;
  84     const WebURLRequest& request = iter->second;
  85     WebURLResponse response;
  86     WebURLError error;
  87     WebData data;
  88     LoadRequest(request, &response, &error, &data);
  89     // Follow any redirects while the loader is still active.
  90     while (response.httpStatusCode() >= 300 &&
  91            response.httpStatusCode() < 400) {
  92       WebURLRequest newRequest = loader->ServeRedirect(response);
  93       if (!IsPending(loader) || loader->isDeferred())
  94         break;
  95       LoadRequest(newRequest, &response, &error, &data);
  96     }
  97     // Serve the request if the loader is still active.
  98     if (IsPending(loader) && !loader->isDeferred())
  99       loader->ServeAsynchronousRequest(delegate_, response, data, error);
 100     // The loader might have already been removed.
 101     pending_loaders_.erase(loader);
 102   }
 103   base::RunLoop().RunUntilIdle();
 104 }
 105
 106 bool WebURLLoaderMockFactory::IsMockedURL(const blink::WebURL& url) {
 107   return url_to_reponse_info_.find(url) != url_to_reponse_info_.end();
 108 }
 109
 110 void WebURLLoaderMockFactory::CancelLoad(WebURLLoaderMock* loader) {
 111   pending_loaders_.erase(loader);
 112 }
 113
 114 WebURLLoader* WebURLLoaderMockFactory::CreateURLLoader(
 115     WebURLLoader* default_loader) {
 116   DCHECK(default_loader);
 117   return new WebURLLoaderMock(this, default_loader);
 118 }
 119
 120 void WebURLLoaderMockFactory::LoadSynchronously(const WebURLRequest& request,
 121                                                 WebURLResponse* response,
 122                                                 WebURLError* error,
 123                                                 WebData* data) {
 124   LoadRequest(request, response, error, data);
 125 }
 126
 127 void WebURLLoaderMockFactory::LoadAsynchronouly(const WebURLRequest& request,
 128                                                 WebURLLoaderMock* loader) {
 129   LoaderToRequestMap::iterator iter = pending_loaders_.find(loader);
 130   DCHECK(iter == pending_loaders_.end());
 131   pending_loaders_[loader] = request;
 132 }
 133
 134 void WebURLLoaderMockFactory::LoadRequest(const WebURLRequest& request,
 135                                           WebURLResponse* response,
 136                                           WebURLError* error,
 137                                           WebData* data) {
 138   URLToErrorMap::const_iterator error_iter =
 139       url_to_error_info_.find(request.url());
 140   if (error_iter != url_to_error_info_.end())
 141     *error = error_iter->second;
 142
 143   URLToResponseMap::const_iterator iter =
 144       url_to_reponse_info_.find(request.url());
 145   if (iter == url_to_reponse_info_.end()) {
 146     // Non mocked URLs should not have been passed to the default URLLoader.
 147     NOTREACHED();
 148     return;
 149   }
 150
 151   if (!error->reason && !ReadFile(iter->second.file_path, data)) {
 152     NOTREACHED();
 153     return;
 154   }
 155
 156   *response = iter->second.response;
 157 }
 158
 159 bool WebURLLoaderMockFactory::IsPending(WebURLLoaderMock* loader) {
 160   LoaderToRequestMap::iterator iter = pending_loaders_.find(loader);
 161   return iter != pending_loaders_.end();
 162 }
 163
 164 // static
 165 bool WebURLLoaderMockFactory::ReadFile(const base::FilePath& file_path,
 166                                        WebData* data) {
 167   // If the path is empty then we return an empty file so tests can simulate
 168   // requests without needing to actually load files.
 169   if (file_path.empty())
 170     return true;
 171
 172   int64 file_size = 0;
 173   if (!base::GetFileSize(file_path, &file_size))
 174     return false;
 175
 176   int size = static_cast<int>(file_size);
 177   scoped_ptr<char[]> buffer(new char[size]);
 178   data->reset();
 179   int read_count = base::ReadFile(file_path, buffer.get(), size);
 180   if (read_count == -1)
 181     return false;
 182   DCHECK(read_count == size);
 183   data->assign(buffer.get(), size);
 184
 185   return true;
 186 }