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1 // Copyright (c) 2017 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "content/browser/appcache/appcache_url_loader_job.h" | 5 #include "content/browser/appcache/appcache_url_loader_job.h" |
6 #include "content/browser/appcache/appcache_entry.h" | 6 #include "content/browser/appcache/appcache_histograms.h" |
7 #include "content/browser/url_loader_factory_getter.h" | |
8 #include "content/common/net_adapters.h" | |
9 #include "content/public/common/resource_type.h" | |
7 | 10 |
8 namespace content { | 11 namespace content { |
9 | 12 |
10 AppCacheURLLoaderJob::~AppCacheURLLoaderJob() {} | 13 AppCacheURLLoaderJob::~AppCacheURLLoaderJob() {} |
11 | 14 |
12 void AppCacheURLLoaderJob::Kill() {} | 15 void AppCacheURLLoaderJob::Kill() {} |
13 | 16 |
14 bool AppCacheURLLoaderJob::IsStarted() const { | 17 bool AppCacheURLLoaderJob::IsStarted() const { |
15 return false; | 18 return delivery_type_ != AWAITING_DELIVERY_ORDERS; |
16 } | |
17 | |
18 bool AppCacheURLLoaderJob::IsWaiting() const { | |
19 return false; | |
20 } | |
21 | |
22 bool AppCacheURLLoaderJob::IsDeliveringAppCacheResponse() const { | |
23 return false; | |
24 } | |
25 | |
26 bool AppCacheURLLoaderJob::IsDeliveringNetworkResponse() const { | |
27 return false; | |
28 } | |
29 | |
30 bool AppCacheURLLoaderJob::IsDeliveringErrorResponse() const { | |
31 return false; | |
32 } | |
33 | |
34 bool AppCacheURLLoaderJob::IsCacheEntryNotFound() const { | |
35 return false; | |
36 } | 19 } |
37 | 20 |
38 void AppCacheURLLoaderJob::DeliverAppCachedResponse(const GURL& manifest_url, | 21 void AppCacheURLLoaderJob::DeliverAppCachedResponse(const GURL& manifest_url, |
39 int64_t cache_id, | 22 int64_t cache_id, |
40 const AppCacheEntry& entry, | 23 const AppCacheEntry& entry, |
41 bool is_fallback) {} | 24 bool is_fallback) { |
42 | 25 delivery_type_ = APPCACHED_DELIVERY; |
43 void AppCacheURLLoaderJob::DeliverNetworkResponse() {} | 26 |
44 | 27 AppCacheHistograms::AddAppCacheJobStartDelaySample(base::TimeTicks::Now() - |
45 void AppCacheURLLoaderJob::DeliverErrorResponse() {} | 28 start_time_tick_); |
29 | |
30 manifest_url_ = manifest_url; | |
31 cache_id_ = cache_id; | |
32 entry_ = entry; | |
33 is_fallback_ = is_fallback; | |
34 | |
35 storage_->LoadResponseInfo(manifest_url_, entry_.response_id(), this); | |
michaeln
2017/06/09 02:06:18
Unfortunately, the rawptr is a problem
We're goin
ananta
2017/06/09 04:48:19
I added a call to CancelDelegateCallbacks in the d
michaeln
2017/06/09 19:59:53
The other class is actually safe but its not at al
| |
36 } | |
37 | |
38 void AppCacheURLLoaderJob::DeliverNetworkResponse() { | |
39 delivery_type_ = NETWORK_DELIVERY; | |
40 | |
41 AppCacheHistograms::AddNetworkJobStartDelaySample(base::TimeTicks::Now() - | |
42 start_time_tick_); | |
43 | |
44 // In network service land, if we are processing a navigation request, we | |
45 // need to inform the loader callback that we are not going to handle this | |
46 // request. The loader callback is valid only for navigation requests. | |
47 if (!loader_callback_.is_null()) { | |
48 std::move(loader_callback_).Run(StartLoaderCallback()); | |
49 return; | |
50 } | |
51 | |
52 url_loader_factory_getter_->GetNetworkFactory()->get()->CreateLoaderAndStart( | |
michaeln
2017/06/09 01:48:29
We don't yet know if there will be a chain of hand
ananta
2017/06/09 04:48:19
Removed
| |
53 mojo::MakeRequest(&url_loader_network_), routing_id_, request_id_, | |
54 mojom::kURLLoadOptionSendSSLInfo, request_, std::move(client_info_)); | |
55 } | |
56 | |
57 void AppCacheURLLoaderJob::DeliverErrorResponse() { | |
58 delivery_type_ = ERROR_DELIVERY; | |
59 | |
60 // TODO(ananta) | |
61 // Fill up the correct error code here and add support in NotifyError() to | |
62 // generate a proper error response. | |
63 NotifyCompleted(net::ERR_UNEXPECTED); | |
64 | |
65 AppCacheHistograms::AddErrorJobStartDelaySample(base::TimeTicks::Now() - | |
66 start_time_tick_); | |
67 } | |
46 | 68 |
47 const GURL& AppCacheURLLoaderJob::GetURL() const { | 69 const GURL& AppCacheURLLoaderJob::GetURL() const { |
48 return url_; | 70 return request_.url; |
49 } | 71 } |
50 | 72 |
51 AppCacheURLLoaderJob::AppCacheURLLoaderJob() {} | 73 AppCacheURLLoaderJob* AppCacheURLLoaderJob::AsURLLoaderJob() { |
74 return this; | |
75 } | |
76 | |
77 void AppCacheURLLoaderJob::FollowRedirect() { | |
78 if (url_loader_network_) | |
79 url_loader_network_->FollowRedirect(); | |
80 } | |
81 | |
82 void AppCacheURLLoaderJob::SetPriority(net::RequestPriority priority, | |
83 int32_t intra_priority_value) { | |
84 NOTREACHED() << "We don't support SetPriority()"; | |
85 } | |
86 | |
87 void AppCacheURLLoaderJob::Start(int routing_id, | |
88 int request_id, | |
89 mojom::URLLoaderRequest request, | |
90 mojom::URLLoaderClientPtr client) { | |
91 DCHECK(!binding_.is_bound()); | |
92 binding_.Bind(std::move(request)); | |
93 | |
94 binding_.set_connection_error_handler(base::Bind( | |
95 &AppCacheURLLoaderJob::OnConnectionError, StaticAsWeakPtr(this))); | |
96 | |
97 routing_id_ = routing_id; | |
98 request_id_ = request_id; | |
99 | |
100 client_info_ = std::move(client); | |
101 | |
102 // Send the cached AppCacheResponse if any. | |
103 if (info_.get()) | |
104 SendResponseInfo(); | |
105 } | |
106 | |
107 void AppCacheURLLoaderJob::SetURLLoaderFactoryGetter( | |
108 URLLoaderFactoryGetter* url_loader_factory_getter) { | |
109 url_loader_factory_getter_ = url_loader_factory_getter; | |
110 } | |
111 | |
112 AppCacheURLLoaderJob::AppCacheURLLoaderJob(const ResourceRequest& request, | |
113 AppCacheStorage* storage) | |
114 : request_(request), | |
115 storage_(storage), | |
116 start_time_tick_(base::TimeTicks::Now()), | |
117 cache_id_(kAppCacheNoCacheId), | |
118 is_fallback_(false), | |
119 buffer_(nullptr), | |
120 binding_(this), | |
121 routing_id_(-1), | |
122 request_id_(-1), | |
123 writable_handle_watcher_(FROM_HERE, | |
124 mojo::SimpleWatcher::ArmingPolicy::MANUAL) {} | |
125 | |
126 void AppCacheURLLoaderJob::OnResponseInfoLoaded( | |
127 AppCacheResponseInfo* response_info, | |
128 int64_t response_id) { | |
129 DCHECK(IsDeliveringAppCacheResponse()); | |
130 | |
131 if (response_info) { | |
132 info_ = response_info; | |
133 reader_.reset( | |
134 storage_->CreateResponseReader(manifest_url_, entry_.response_id())); | |
135 | |
136 if (!loader_callback_.is_null()) { | |
michaeln
2017/06/09 01:48:30
in our current use case, navigation, this is never
ananta
2017/06/09 04:48:19
Replaced with a DCHECK
| |
137 std::move(loader_callback_) | |
138 .Run(base::Bind(&AppCacheURLLoaderJob::Start, StaticAsWeakPtr(this), | |
139 0, 0)); | |
140 } | |
141 | |
142 // TODO(ananta) | |
143 // Handle range requests. | |
144 | |
145 response_body_stream_ = std::move(data_pipe_.producer_handle); | |
146 | |
147 // Wait for the data pipe to be ready to accept data. | |
148 writable_handle_watcher_.Watch( | |
149 response_body_stream_.get(), MOJO_HANDLE_SIGNAL_WRITABLE, | |
150 base::Bind(&AppCacheURLLoaderJob::OnResponseBodyStreamReady, | |
michaeln
2017/06/09 01:48:29
is it possible/expected for OnResponseBodyStreamRe
ananta
2017/06/09 04:48:19
It is on the same thread?. Unless I am missing som
| |
151 StaticAsWeakPtr(this))); | |
152 | |
153 if (client_info_) | |
154 SendResponseInfo(); | |
155 | |
156 ReadMore(); | |
157 } else { | |
158 // Error case here. We fallback to the network. | |
159 // TODO(ananta) | |
160 // Should we be invoking the loader callback here to give control to the | |
161 // next handler in the chain?. | |
michaeln
2017/06/09 01:48:29
The TODO comment seems stale or misplaced, for nav
ananta
2017/06/09 04:48:19
Thanks. Removed the comment.
| |
162 DeliverNetworkResponse(); | |
163 AppCacheHistograms::CountResponseRetrieval( | |
164 false, IsResourceTypeFrame(request_.resource_type), | |
165 manifest_url_.GetOrigin()); | |
166 | |
167 cache_entry_not_found_ = true; | |
168 } | |
169 } | |
170 | |
171 void AppCacheURLLoaderJob::OnCacheLoaded(AppCache* cache, int64_t cache_id) { | |
172 NOTREACHED() << "Unhandled at the moment."; | |
173 } | |
174 | |
175 void AppCacheURLLoaderJob::OnReadComplete(int result) { | |
176 DLOG(WARNING) << "AppCache read completed with result: " << result; | |
177 | |
178 bool is_main_resource = IsResourceTypeFrame(request_.resource_type); | |
179 | |
180 if (result == 0) { | |
181 NotifyCompleted(result); | |
182 AppCacheHistograms::CountResponseRetrieval(true, is_main_resource, | |
183 manifest_url_.GetOrigin()); | |
michaeln
2017/06/09 01:48:30
you could early return here and avoid the if (resu
ananta
2017/06/09 04:48:19
Done.
| |
184 } else if (result < 0) { | |
185 // TODO(ananta) | |
186 // Populate the relevant fields of the ResourceRequestCompletionStatus | |
187 // structure. | |
188 NotifyCompleted(result); | |
189 AppCacheHistograms::CountResponseRetrieval(false, is_main_resource, | |
190 manifest_url_.GetOrigin()); | |
191 return; | |
192 } | |
193 | |
194 if (result > 0) { | |
195 uint32_t bytes_written = static_cast<uint32_t>(result); | |
196 response_body_stream_ = pending_write_->Complete(bytes_written); | |
197 pending_write_ = nullptr; | |
198 ReadMore(); | |
199 } | |
200 } | |
201 | |
202 void AppCacheURLLoaderJob::OnConnectionError() { | |
203 base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this); | |
204 } | |
205 | |
206 void AppCacheURLLoaderJob::SendResponseInfo() { | |
207 DCHECK(client_info_); | |
208 | |
209 // If this is null it means the response information was sent to the client. | |
210 if (!data_pipe_.consumer_handle.is_valid()) | |
211 return; | |
212 | |
213 const net::HttpResponseInfo* http_info = info_->http_response_info(); | |
214 | |
215 ResourceResponseHead response_head; | |
216 response_head.headers = http_info->headers; | |
217 | |
218 // TODO(ananta) | |
219 // Copy more fields. | |
220 http_info->headers->GetMimeType(&response_head.mime_type); | |
221 http_info->headers->GetCharset(&response_head.charset); | |
222 | |
223 response_head.request_time = http_info->request_time; | |
224 response_head.response_time = http_info->response_time; | |
225 response_head.content_length = info_->response_data_size(); | |
226 | |
227 client_info_->OnReceiveResponse(response_head, http_info->ssl_info, | |
228 mojom::DownloadedTempFilePtr()); | |
229 | |
230 client_info_->OnStartLoadingResponseBody( | |
231 std::move(data_pipe_.consumer_handle)); | |
232 } | |
233 | |
234 void AppCacheURLLoaderJob::ReadMore() { | |
235 DCHECK(!pending_write_.get()); | |
236 | |
237 uint32_t num_bytes; | |
238 // TODO: we should use the abstractions in MojoAsyncResourceHandler. | |
239 MojoResult result = NetToMojoPendingBuffer::BeginWrite( | |
240 &response_body_stream_, &pending_write_, &num_bytes); | |
241 if (result == MOJO_RESULT_SHOULD_WAIT) { | |
242 // The pipe is full. We need to wait for it to have more space. | |
243 writable_handle_watcher_.ArmOrNotify(); | |
244 return; | |
245 } else if (result != MOJO_RESULT_OK) { | |
246 // The response body stream is in a bad state. Bail. | |
247 // TODO: How should this be communicated to our client? | |
michaeln
2017/06/09 01:48:29
Probably NotifyComplete(ERR)? As coded will progre
ananta
2017/06/09 04:48:19
Added a call to NotifyCompleted here.
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248 writable_handle_watcher_.Cancel(); | |
249 response_body_stream_.reset(); | |
250 return; | |
251 } | |
252 | |
253 CHECK_GT(static_cast<uint32_t>(std::numeric_limits<int>::max()), num_bytes); | |
254 buffer_ = nullptr; | |
255 buffer_ = new NetToMojoIOBuffer(pending_write_.get()); | |
michaeln
2017/06/09 01:48:29
Is the buffer_ data member is needed? It's only ac
ananta
2017/06/09 04:48:19
The buffer_ member should not be needed I think. R
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256 | |
257 reader_->ReadData( | |
258 buffer_.get(), info_->response_data_size(), | |
259 base::Bind(&AppCacheURLLoaderJob::OnReadComplete, StaticAsWeakPtr(this))); | |
260 } | |
261 | |
262 void AppCacheURLLoaderJob::OnResponseBodyStreamReady(MojoResult result) { | |
263 // TODO: Handle a bad |result| value. | |
michaeln
2017/06/09 01:48:30
ditto probably NotifyComplete(ERR)
ananta
2017/06/09 04:48:19
Done.
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264 DCHECK_EQ(result, MOJO_RESULT_OK); | |
265 ReadMore(); | |
266 } | |
267 | |
268 void AppCacheURLLoaderJob::NotifyCompleted(int error_code) { | |
269 // TODO(ananta) | |
270 // Fill other details in the ResourceRequestCompletionStatus structure. | |
271 // In case of an error we may need to call OnReceiveResponse on the client. | |
272 // That requires HTTP header generation etc. | |
michaeln
2017/06/09 01:48:29
I think we only need http header generation and a
ananta
2017/06/09 04:48:19
Thanks. moved this comment to the DeliverErrorResp
| |
273 ResourceRequestCompletionStatus request_complete_data; | |
274 request_complete_data.error_code = error_code; | |
275 client_info_->OnComplete(request_complete_data); | |
276 } | |
52 | 277 |
53 } // namespace content | 278 } // namespace content |
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