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Issue 2273403003: Moving gRPC support interfaces out of cronet and into a new component. (Closed)
Patch Set: Address comments Created 4 years, 1 month ago
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1 // Copyright 2016 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 "components/cronet/ios/cronet_c_for_grpc.h"
6
7 #include <stdbool.h>
8
9 #include <memory>
10 #include <string>
11 #include <vector>
12
13 #include "base/bind.h"
14 #include "base/location.h"
15 #include "base/logging.h"
16 #include "base/macros.h"
17 #include "base/memory/ptr_util.h"
18 #include "base/memory/ref_counted.h"
19 #include "base/strings/string_number_conversions.h"
20 #include "base/strings/string_split.h"
21 #include "components/cronet/ios/cronet_bidirectional_stream.h"
22 #include "components/cronet/ios/cronet_environment.h"
23 #include "net/base/io_buffer.h"
24 #include "net/base/net_errors.h"
25 #include "net/base/request_priority.h"
26 #include "net/http/bidirectional_stream.h"
27 #include "net/http/bidirectional_stream_request_info.h"
28 #include "net/http/http_network_session.h"
29 #include "net/http/http_response_headers.h"
30 #include "net/http/http_status_code.h"
31 #include "net/http/http_transaction_factory.h"
32 #include "net/http/http_util.h"
33 #include "net/spdy/spdy_header_block.h"
34 #include "net/ssl/ssl_info.h"
35 #include "net/url_request/http_user_agent_settings.h"
36 #include "net/url_request/url_request_context.h"
37 #include "url/gurl.h"
38
39 namespace {
40
41 class HeadersArray : public cronet_bidirectional_stream_header_array {
42 public:
43 HeadersArray(const net::SpdyHeaderBlock& header_block);
44 ~HeadersArray();
45
46 private:
47 DISALLOW_COPY_AND_ASSIGN(HeadersArray);
48 base::StringPairs headers_strings_;
49 };
50
51 HeadersArray::HeadersArray(const net::SpdyHeaderBlock& header_block)
52 : headers_strings_(header_block.size()) {
53 // Count and headers are inherited from parent structure.
54 count = capacity = header_block.size();
55 headers = new cronet_bidirectional_stream_header[count];
56 size_t i = 0;
57 // Copy headers into |headers_strings_| because string pieces are not
58 // '\0'-terminated.
59 for (const auto& it : header_block) {
60 headers_strings_[i].first = it.first.as_string();
61 headers_strings_[i].second = it.second.as_string();
62 headers[i].key = headers_strings_[i].first.c_str();
63 headers[i].value = headers_strings_[i].second.c_str();
64 ++i;
65 }
66 }
67
68 HeadersArray::~HeadersArray() {
69 delete[] headers;
70 }
71
72 class CronetBidirectionalStreamAdapter
73 : public cronet::CronetBidirectionalStream::Delegate {
74 public:
75 CronetBidirectionalStreamAdapter(
76 cronet_engine* engine,
77 void* annotation,
78 cronet_bidirectional_stream_callback* callback);
79
80 virtual ~CronetBidirectionalStreamAdapter();
81
82 void OnStreamReady() override;
83
84 void OnHeadersReceived(const net::SpdyHeaderBlock& headers_block,
85 const char* negotiated_protocol) override;
86
87 void OnDataRead(char* data, int size) override;
88
89 void OnDataSent(const char* data) override;
90
91 void OnTrailersReceived(const net::SpdyHeaderBlock& trailers_block) override;
92
93 void OnSucceeded() override;
94
95 void OnFailed(int error) override;
96
97 void OnCanceled() override;
98
99 cronet_bidirectional_stream* c_stream() const { return c_stream_.get(); }
100
101 static cronet::CronetBidirectionalStream* GetCronetStream(
102 cronet_bidirectional_stream* stream);
103
104 static void DestroyAdapterForStream(cronet_bidirectional_stream* stream);
105
106 private:
107 void DestroyOnNetworkThread();
108
109 // None of these objects are owned by |this|.
110 cronet::CronetEnvironment* cronet_environment_;
111 cronet::CronetBidirectionalStream* cronet_bidirectional_stream_;
112 // C side
113 std::unique_ptr<cronet_bidirectional_stream> c_stream_;
114 cronet_bidirectional_stream_callback* c_callback_;
115 };
116
117 CronetBidirectionalStreamAdapter::CronetBidirectionalStreamAdapter(
118 cronet_engine* engine,
119 void* annotation,
120 cronet_bidirectional_stream_callback* callback)
121 : cronet_environment_(
122 reinterpret_cast<cronet::CronetEnvironment*>(engine->obj)),
123 c_stream_(base::MakeUnique<cronet_bidirectional_stream>()),
124 c_callback_(callback) {
125 DCHECK(cronet_environment_);
126 cronet_bidirectional_stream_ =
127 new cronet::CronetBidirectionalStream(cronet_environment_, this);
128 c_stream_->obj = this;
129 c_stream_->annotation = annotation;
130 }
131
132 CronetBidirectionalStreamAdapter::~CronetBidirectionalStreamAdapter() {}
133
134 void CronetBidirectionalStreamAdapter::OnStreamReady() {
135 DCHECK(c_callback_->on_stream_ready);
136 c_callback_->on_stream_ready(c_stream());
137 }
138
139 void CronetBidirectionalStreamAdapter::OnHeadersReceived(
140 const net::SpdyHeaderBlock& headers_block,
141 const char* negotiated_protocol) {
142 DCHECK(c_callback_->on_response_headers_received);
143 HeadersArray response_headers(headers_block);
144 c_callback_->on_response_headers_received(c_stream(), &response_headers,
145 negotiated_protocol);
146 }
147
148 void CronetBidirectionalStreamAdapter::OnDataRead(char* data, int size) {
149 DCHECK(c_callback_->on_read_completed);
150 c_callback_->on_read_completed(c_stream(), data, size);
151 }
152
153 void CronetBidirectionalStreamAdapter::OnDataSent(const char* data) {
154 DCHECK(c_callback_->on_write_completed);
155 c_callback_->on_write_completed(c_stream(), data);
156 }
157
158 void CronetBidirectionalStreamAdapter::OnTrailersReceived(
159 const net::SpdyHeaderBlock& trailers_block) {
160 DCHECK(c_callback_->on_response_trailers_received);
161 HeadersArray response_trailers(trailers_block);
162 c_callback_->on_response_trailers_received(c_stream(), &response_trailers);
163 }
164
165 void CronetBidirectionalStreamAdapter::OnSucceeded() {
166 DCHECK(c_callback_->on_succeded);
167 c_callback_->on_succeded(c_stream());
168 }
169
170 void CronetBidirectionalStreamAdapter::OnFailed(int error) {
171 DCHECK(c_callback_->on_failed);
172 c_callback_->on_failed(c_stream(), error);
173 }
174
175 void CronetBidirectionalStreamAdapter::OnCanceled() {
176 DCHECK(c_callback_->on_canceled);
177 c_callback_->on_canceled(c_stream());
178 }
179
180 cronet::CronetBidirectionalStream*
181 CronetBidirectionalStreamAdapter::GetCronetStream(
182 cronet_bidirectional_stream* stream) {
183 DCHECK(stream);
184 CronetBidirectionalStreamAdapter* adapter =
185 static_cast<CronetBidirectionalStreamAdapter*>(stream->obj);
186 DCHECK(adapter->c_stream() == stream);
187 DCHECK(adapter->cronet_bidirectional_stream_);
188 return adapter->cronet_bidirectional_stream_;
189 }
190
191 void CronetBidirectionalStreamAdapter::DestroyAdapterForStream(
192 cronet_bidirectional_stream* stream) {
193 DCHECK(stream);
194 CronetBidirectionalStreamAdapter* adapter =
195 static_cast<CronetBidirectionalStreamAdapter*>(stream->obj);
196 DCHECK(adapter->c_stream() == stream);
197 // Destroy could be called from any thread, including network thread (if
198 // posting task to executor throws an exception), but is posted, so |this|
199 // is valid until calling task is complete.
200 adapter->cronet_bidirectional_stream_->Destroy();
201 adapter->cronet_environment_->PostToNetworkThread(
202 FROM_HERE,
203 base::Bind(&CronetBidirectionalStreamAdapter::DestroyOnNetworkThread,
204 base::Unretained(adapter)));
205 }
206
207 void CronetBidirectionalStreamAdapter::DestroyOnNetworkThread() {
208 DCHECK(cronet_environment_->IsOnNetworkThread());
209 delete this;
210 }
211
212 } // namespace
213
214 cronet_bidirectional_stream* cronet_bidirectional_stream_create(
215 cronet_engine* engine,
216 void* annotation,
217 cronet_bidirectional_stream_callback* callback) {
218 // Allocate new C++ adapter that will invoke |callback|.
219 CronetBidirectionalStreamAdapter* stream_adapter =
220 new CronetBidirectionalStreamAdapter(engine, annotation, callback);
221 return stream_adapter->c_stream();
222 }
223
224 int cronet_bidirectional_stream_destroy(cronet_bidirectional_stream* stream) {
225 CronetBidirectionalStreamAdapter::DestroyAdapterForStream(stream);
226 return 1;
227 }
228
229 void cronet_bidirectional_stream_disable_auto_flush(
230 cronet_bidirectional_stream* stream,
231 bool disable_auto_flush) {
232 CronetBidirectionalStreamAdapter::GetCronetStream(stream)->disable_auto_flush(
233 disable_auto_flush);
234 }
235
236 void cronet_bidirectional_stream_delay_request_headers_until_flush(
237 cronet_bidirectional_stream* stream,
238 bool delay_headers_until_flush) {
239 CronetBidirectionalStreamAdapter::GetCronetStream(stream)
240 ->delay_headers_until_flush(delay_headers_until_flush);
241 }
242
243 int cronet_bidirectional_stream_start(
244 cronet_bidirectional_stream* stream,
245 const char* url,
246 int priority,
247 const char* method,
248 const cronet_bidirectional_stream_header_array* headers,
249 bool end_of_stream) {
250 cronet::CronetBidirectionalStream* cronet_stream =
251 CronetBidirectionalStreamAdapter::GetCronetStream(stream);
252 net::HttpRequestHeaders request_headers;
253 if (headers) {
254 for (size_t i = 0; i < headers->count; ++i) {
255 std::string name(headers->headers[i].key);
256 std::string value(headers->headers[i].value);
257 if (!net::HttpUtil::IsValidHeaderName(name) ||
258 !net::HttpUtil::IsValidHeaderValue(value)) {
259 DLOG(ERROR) << "Invalid Header " << name << "=" << value;
260 return i + 1;
261 }
262 request_headers.SetHeader(name, value);
263 }
264 }
265 return cronet_stream->Start(url, priority, method, request_headers,
266 end_of_stream);
267 }
268
269 int cronet_bidirectional_stream_read(cronet_bidirectional_stream* stream,
270 char* buffer,
271 int capacity) {
272 return CronetBidirectionalStreamAdapter::GetCronetStream(stream)->ReadData(
273 buffer, capacity);
274 }
275
276 int cronet_bidirectional_stream_write(cronet_bidirectional_stream* stream,
277 const char* buffer,
278 int count,
279 bool end_of_stream) {
280 return CronetBidirectionalStreamAdapter::GetCronetStream(stream)->WriteData(
281 buffer, count, end_of_stream);
282 }
283
284 void cronet_bidirectional_stream_flush(cronet_bidirectional_stream* stream) {
285 return CronetBidirectionalStreamAdapter::GetCronetStream(stream)->Flush();
286 }
287
288 void cronet_bidirectional_stream_cancel(cronet_bidirectional_stream* stream) {
289 CronetBidirectionalStreamAdapter::GetCronetStream(stream)->Cancel();
290 }
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