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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/autofill/wallet/wallet_client.h" | |
6 | |
7 #include "base/json/json_reader.h" | |
8 #include "base/json/json_writer.h" | |
9 #include "base/logging.h" | |
10 #include "base/memory/scoped_ptr.h" | |
11 #include "base/string_number_conversions.h" | |
12 #include "base/string_split.h" | |
13 #include "base/stringprintf.h" | |
14 #include "base/values.h" | |
15 #include "chrome/browser/autofill/wallet/cart.h" | |
16 #include "chrome/browser/autofill/wallet/full_wallet.h" | |
17 #include "chrome/browser/autofill/wallet/wallet_address.h" | |
18 #include "chrome/browser/autofill/wallet/wallet_items.h" | |
19 #include "chrome/browser/autofill/wallet/wallet_service_url.h" | |
20 #include "googleurl/src/gurl.h" | |
21 #include "net/http/http_status_code.h" | |
22 #include "net/url_request/url_fetcher.h" | |
23 #include "net/url_request/url_fetcher_delegate.h" | |
24 #include "net/url_request/url_request_context_getter.h" | |
25 | |
26 namespace { | |
27 | |
28 const char kEncryptOtpBodyFormat[] = "cvv=%s:%s"; | |
29 const char kJsonMimeType[] = "application/json"; | |
30 const char kApplicationMimeType[] = "application/x-www-form-urlencoded"; | |
31 const size_t kMaxBits = 63; | |
32 | |
33 } // end anonymous namespace | |
34 | |
35 namespace wallet { | |
36 | |
37 class WalletClient::Core | |
Evan Stade
2012/12/07 19:57:44
class level comment.
ahutter
2012/12/15 01:06:31
Done.
| |
38 : public base::RefCountedThreadSafe<WalletClient::Core>, | |
39 public net::URLFetcherDelegate { | |
40 public: | |
41 explicit Core(net::URLRequestContextGetter* context_getter) | |
Evan Stade
2012/12/07 19:57:44
i believe this should take a scoped_refptr
ahutter
2012/12/15 01:06:31
I'm not seeing any other users of RequestContextGe
| |
42 : context_getter_(context_getter), | |
43 observer_(NULL), | |
44 request_type_(NO_PENDING_REQUEST), | |
45 num_retries_(0) {} | |
46 void AcceptLegalDocuments(const std::vector<std::string>& document_ids, | |
47 const std::string& google_transaction_id, | |
48 WalletClientObserver* observer); | |
49 void EncryptOtp(const void* otp, | |
50 size_t length, | |
51 WalletClientObserver* observer); | |
52 void GetFullWallet(const std::string& instrument_id, | |
53 const std::string& address_id, | |
54 const std::string& merchant_domain, | |
55 const Cart& cart, | |
56 const std::string& google_transaction_id, | |
57 const std::string& encrypted_otp, | |
58 const std::string& session_material, | |
59 WalletClientObserver* observer); | |
60 void GetWalletItems(WalletClientObserver* observer); | |
61 void SendExtendedAutofillStatus(bool success, | |
62 const std::string& merchant_domain, | |
63 const std::string& reason, | |
64 const std::string& google_transaction_id, | |
65 WalletClientObserver* observer); | |
66 virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE; | |
67 private: | |
68 friend class base::RefCountedThreadSafe<Core>; | |
69 // TODO(ahutter): Implement this. | |
70 std::string GetRiskParams() { return ""; } | |
71 | |
72 enum RequestType { | |
73 NO_PENDING_REQUEST, | |
74 ACCEPT_LEGAL_DOCUMENTS, | |
75 ENCRYPT_OTP, | |
76 GET_FULL_WALLET, | |
77 GET_WALLET_ITEMS, | |
78 SEND_STATUS, | |
79 }; | |
80 | |
81 virtual ~Core() {} | |
82 | |
83 void MakeWalletRequest(const GURL url, | |
Ilya Sherman
2012/12/14 04:56:43
nit: Pass by const-reference.
ahutter
2012/12/15 01:06:31
Done.
| |
84 const std::string& post_body, | |
85 WalletClient::WalletClientObserver* observer, | |
86 const std::string& content_type); | |
87 | |
88 void HandleResponse(const net::URLFetcher* source, | |
89 bool* should_retry_request); | |
90 | |
91 void MaybeRetry(scoped_ptr<net::URLFetcher>* old_request, | |
92 const net::URLFetcher* source, | |
93 bool* should_retry_request); | |
94 | |
95 scoped_refptr<net::URLRequestContextGetter> context_getter_; | |
Evan Stade
2012/12/07 19:57:44
docs for all these
ahutter
2012/12/15 01:06:31
Done.
| |
96 WalletClient::WalletClientObserver* observer_; | |
97 scoped_ptr<net::URLFetcher> request_; | |
98 RequestType request_type_; | |
99 int num_retries_; | |
100 DISALLOW_COPY_AND_ASSIGN(Core); | |
101 }; | |
102 | |
103 void WalletClient::Core::AcceptLegalDocuments( | |
104 const std::vector<std::string>& document_ids, | |
105 const std::string& google_transaction_id, | |
106 WalletClient::WalletClientObserver* observer) { | |
107 DCHECK_EQ(request_type_, NO_PENDING_REQUEST); | |
108 request_type_ = ACCEPT_LEGAL_DOCUMENTS; | |
109 GURL url = GetAcceptLegalDocumentsUrl(); | |
110 DictionaryValue request_dict; | |
111 request_dict.SetString("api_key", wallet::kApiKey); | |
112 request_dict.SetString("google_transaction_id", google_transaction_id); | |
113 ListValue* docs_list = new ListValue(); | |
114 for (std::vector<std::string>::const_iterator it = document_ids.begin(); | |
115 it != document_ids.end(); | |
116 ++it) { | |
117 docs_list->AppendString(*it); | |
118 } | |
119 request_dict.Set("accepted_legal_document", docs_list); | |
120 | |
121 std::string post_body; | |
122 base::JSONWriter::Write(&request_dict, &post_body); | |
123 MakeWalletRequest(url, post_body, observer, kJsonMimeType); | |
124 } | |
125 | |
126 void WalletClient::Core::EncryptOtp( | |
127 const void* otp, | |
128 size_t length, | |
129 WalletClient::WalletClientObserver* observer) { | |
130 DCHECK_EQ(request_type_, NO_PENDING_REQUEST); | |
131 request_type_ = ENCRYPT_OTP; | |
132 GURL url = GetSecureUrl(); | |
133 size_t num_bits = length * 8; | |
134 DCHECK_LT(num_bits, kMaxBits); | |
135 std::string post_body = StringPrintf(kEncryptOtpBodyFormat, | |
136 base::HexEncode(&num_bits, 1).c_str(), | |
137 base::HexEncode(otp, length).c_str()); | |
138 MakeWalletRequest(url, post_body, observer, kApplicationMimeType); | |
139 } | |
140 | |
141 void WalletClient::Core::GetFullWallet( | |
142 const std::string& instrument_id, | |
143 const std::string& address_id, | |
144 const std::string& merchant_domain, | |
145 const Cart& cart, | |
146 const std::string& google_transaction_id, | |
147 const std::string& encrypted_otp, | |
148 const std::string& session_material, | |
149 WalletClient::WalletClientObserver* observer) { | |
150 DCHECK_EQ(request_type_, NO_PENDING_REQUEST); | |
151 request_type_ = GET_FULL_WALLET; | |
152 GURL url = GetGetFullWalletUrl(); | |
153 DictionaryValue request_dict; | |
154 request_dict.SetString("api_key", wallet::kApiKey); | |
155 request_dict.SetString("risk_params", GetRiskParams()); | |
156 request_dict.SetString("selected_instrument_id", instrument_id); | |
157 request_dict.SetString("selected_address_id", address_id); | |
158 request_dict.SetString("merchant_domain", merchant_domain); | |
159 request_dict.SetString("google_transaction_id", google_transaction_id); | |
160 request_dict.Set("cart", cart.ToDictionary().release()); | |
161 request_dict.SetString("encrypted_otp", encrypted_otp); | |
162 request_dict.SetString("session_material", session_material); | |
163 std::string post_body; | |
164 base::JSONWriter::Write(&request_dict, &post_body); | |
165 MakeWalletRequest(url, post_body, observer, kJsonMimeType); | |
166 } | |
167 | |
168 void WalletClient::Core::GetWalletItems( | |
169 WalletClient::WalletClientObserver* observer) { | |
Evan Stade
2012/12/07 19:57:44
more vertical whitespace in this fn, and pretty mu
ahutter
2012/12/15 01:06:31
Done.
| |
170 DCHECK_EQ(request_type_, NO_PENDING_REQUEST); | |
171 request_type_ = GET_WALLET_ITEMS; | |
172 GURL url = GetGetWalletItemsUrl(); | |
173 DictionaryValue request_dict; | |
174 request_dict.SetString("api_key", wallet::kApiKey); | |
175 request_dict.SetString("risk_params", GetRiskParams()); | |
176 std::string post_body; | |
177 base::JSONWriter::Write(&request_dict, &post_body); | |
178 MakeWalletRequest(url, post_body, observer, kJsonMimeType); | |
179 } | |
180 | |
181 void WalletClient::Core::SendExtendedAutofillStatus( | |
182 bool success, | |
183 const std::string& merchant_domain, | |
184 const std::string& reason, | |
185 const std::string& google_transaction_id, | |
186 WalletClient::WalletClientObserver* observer) { | |
187 DCHECK_EQ(request_type_, NO_PENDING_REQUEST); | |
188 request_type_ = SEND_STATUS; | |
189 GURL url = GetSendStatusUrl(); | |
190 DictionaryValue request_dict; | |
191 request_dict.SetString("api_key", wallet::kApiKey); | |
192 request_dict.SetBoolean("success", success); | |
193 request_dict.SetString("hostname", merchant_domain); | |
194 if (!success) { | |
195 // TODO(ahutter): Probably want to do some checks on reason. | |
196 request_dict.SetString("reason", reason); | |
197 } | |
198 request_dict.SetString("google_transaction_id", google_transaction_id); | |
199 std::string post_body; | |
200 base::JSONWriter::Write(&request_dict, &post_body); | |
201 MakeWalletRequest(url, post_body, observer, kJsonMimeType); | |
202 } | |
203 | |
204 void WalletClient::Core::MakeWalletRequest( | |
205 GURL url, | |
206 const std::string& post_body, | |
207 WalletClient::WalletClientObserver* observer, | |
208 const std::string& content_type) { | |
209 DCHECK(!request_.get()) << "Tried to fetch two things at once!"; | |
210 DCHECK(observer); | |
211 num_retries_ = 0; | |
212 observer_ = observer; | |
213 request_.reset(net::URLFetcher::Create( | |
214 0, url, net::URLFetcher::POST, this)); | |
215 request_->SetRequestContext(context_getter_); | |
216 DVLOG(1) << "Request body: " << post_body; | |
217 request_->SetUploadData(content_type, post_body); | |
218 request_->SetMaxRetries(3); | |
219 request_->Start(); | |
220 } | |
221 | |
222 | |
223 void WalletClient::Core::OnURLFetchComplete( | |
224 const net::URLFetcher* source) { | |
225 bool should_retry; | |
226 HandleResponse(source, &should_retry); | |
227 if (should_retry) { | |
228 // Explicitly call ReceivedContentWasMalformed() to ensure the current | |
229 // request gets counted as a failure for calculation of the back-off | |
230 // period. If it was already a failure by status code, this call will | |
231 // be ignored. | |
232 request_->ReceivedContentWasMalformed(); | |
233 num_retries_++; | |
234 // Set context_getter_ again because | |
235 // URLFetcher::Core::RetryOrCompleteUrlFetch resets it to NULL. | |
236 request_->SetRequestContext(context_getter_); | |
237 request_->Start(); | |
238 } | |
239 } | |
240 | |
241 void WalletClient::Core::MaybeRetry( | |
242 scoped_ptr<net::URLFetcher>* old_request, | |
243 const net::URLFetcher* source, | |
244 bool* should_retry_request) { | |
245 if (source->GetMaxRetries() != -1 && | |
246 num_retries_ >= source->GetMaxRetries()) { | |
247 request_type_ = NO_PENDING_REQUEST; | |
248 observer_->OnNetworkError(source->GetResponseCode()); | |
249 } else { | |
250 request_ = old_request->Pass(); | |
251 *should_retry_request = true; | |
252 } | |
253 } | |
254 | |
255 void WalletClient::Core::HandleResponse( | |
256 const net::URLFetcher* source, | |
257 bool* should_retry_request) { | |
258 // Keep the URLFetcher object in case we need to reuse it. | |
259 scoped_ptr<net::URLFetcher> old_request = request_.Pass(); | |
260 DCHECK_EQ(source, old_request.get()); | |
261 *should_retry_request = false; | |
262 | |
263 DVLOG(1) << "Got response from " << source->GetOriginalURL(); | |
264 | |
265 int response_code = source->GetResponseCode(); | |
266 std::string data; | |
267 scoped_ptr<DictionaryValue> response_dict; | |
268 switch (response_code) { | |
269 // HTTP_BAD_REQUEST means the arguments are invalid. No point retrying. | |
270 case net::HTTP_BAD_REQUEST: { | |
271 request_type_ = NO_PENDING_REQUEST; | |
272 observer_->OnWalletError(); | |
273 return; | |
274 } | |
275 // HTTP_OK holds a valid response and HTTP_INTERNAL_SERVER_ERROR holds an | |
276 // error code and message for the user. | |
277 case net::HTTP_OK: | |
278 case net::HTTP_INTERNAL_SERVER_ERROR: { | |
279 source->GetResponseAsString(&data); | |
280 DVLOG(1) << "Response body: " << data; | |
281 scoped_ptr<Value> message_value(base::JSONReader::Read(data)); | |
282 if (message_value.get() && | |
283 message_value->IsType(Value::TYPE_DICTIONARY)) { | |
284 response_dict.reset( | |
285 static_cast<DictionaryValue*>(message_value.release())); | |
286 } | |
287 if (response_code == net::HTTP_INTERNAL_SERVER_ERROR) { | |
288 request_type_ = NO_PENDING_REQUEST; | |
289 // TODO(ahutter): Do something with the response. See | |
290 // http://crbug.com/164410. | |
291 observer_->OnWalletError(); | |
292 return; | |
293 } | |
294 break; | |
295 } | |
296 // Anything else is an error. | |
297 default: { | |
298 MaybeRetry(&old_request, source, should_retry_request); | |
299 return; | |
300 } | |
301 } | |
302 | |
303 RequestType type = request_type_; | |
304 request_type_ = NO_PENDING_REQUEST; | |
305 | |
306 switch (type) { | |
307 case ACCEPT_LEGAL_DOCUMENTS: { | |
308 observer_->OnAcceptLegalDocuments(); | |
309 break; | |
310 } | |
311 case SEND_STATUS: { | |
312 observer_->OnSendExtendedAutofillStatus(); | |
313 break; | |
314 } | |
315 case ENCRYPT_OTP: { | |
316 if (!data.empty()) { | |
317 std::vector<std::string> splits; | |
318 base::SplitString(data, '|', &splits); | |
319 if (splits.size() == 2) | |
320 observer_->OnEncryptOtp(splits[1], splits[0]); | |
321 else | |
322 observer_->OnNetworkError(response_code); | |
323 } else { | |
324 MaybeRetry(&old_request, source, should_retry_request); | |
325 } | |
326 break; | |
327 } | |
328 case GET_FULL_WALLET: { | |
329 if (response_dict.get()) { | |
330 scoped_ptr<FullWallet> full_wallet( | |
331 FullWallet::CreateFullWallet(*response_dict)); | |
332 if (full_wallet.get()) | |
333 observer_->OnGetFullWallet(full_wallet.release()); | |
334 else | |
335 observer_->OnNetworkError(response_code); | |
336 } else { | |
337 MaybeRetry(&old_request, source, should_retry_request); | |
338 } | |
339 break; | |
340 } | |
341 case GET_WALLET_ITEMS: { | |
342 if (response_dict.get()) { | |
343 scoped_ptr<WalletItems> wallet_items( | |
344 WalletItems::CreateWalletItems(*response_dict)); | |
345 if (wallet_items.get()) | |
346 observer_->OnGetWalletItems(wallet_items.release()); | |
347 else | |
348 observer_->OnNetworkError(response_code); | |
349 } else { | |
350 MaybeRetry(&old_request, source, should_retry_request); | |
351 } | |
352 break; | |
353 } | |
354 default: { | |
355 NOTREACHED(); | |
356 } | |
357 } | |
358 } | |
359 | |
360 WalletClient::WalletClient( | |
361 net::URLRequestContextGetter* context_getter) { | |
362 DCHECK(context_getter); | |
363 core_ = new Core(context_getter); | |
364 } | |
365 | |
366 WalletClient::~WalletClient() {} | |
367 | |
368 void WalletClient::GetWalletItems( | |
369 WalletClient::WalletClientObserver* observer) { | |
370 core_->GetWalletItems(observer); | |
371 } | |
372 | |
373 void WalletClient::AcceptLegalDocuments( | |
374 const std::vector<std::string>& document_ids, | |
375 const std::string& google_transaction_id, | |
376 WalletClient::WalletClientObserver* observer) { | |
377 core_->AcceptLegalDocuments(document_ids, | |
378 google_transaction_id, | |
379 observer); | |
380 } | |
381 | |
382 void WalletClient::EncryptOtp( | |
383 const void* otp, | |
384 size_t length, | |
385 WalletClient::WalletClientObserver* observer) { | |
386 core_->EncryptOtp(otp, length, observer); | |
387 } | |
388 | |
389 void WalletClient::GetFullWallet( | |
390 const std::string& instrument_id, | |
391 const std::string& address_id, | |
392 const std::string& merchant_domain, | |
393 const Cart& cart, | |
394 const std::string& google_transaction_id, | |
395 const std::string& encrypted_otp, | |
396 const std::string& session_material, | |
397 WalletClient::WalletClientObserver* observer) { | |
398 core_->GetFullWallet(instrument_id, | |
399 address_id, | |
400 merchant_domain, | |
401 cart, | |
402 google_transaction_id, | |
403 encrypted_otp, | |
404 session_material, | |
405 observer); | |
406 } | |
407 | |
408 void WalletClient::SendExtendedAutofillStatus( | |
409 bool success, | |
410 const std::string& merchant_domain, | |
411 const std::string& reason, | |
412 const std::string& google_transaction_id, | |
413 WalletClient::WalletClientObserver* observer) { | |
414 core_->SendExtendedAutofillStatus(success, | |
415 merchant_domain, | |
416 reason, | |
417 google_transaction_id, | |
418 observer); | |
419 } | |
420 | |
421 } // end wallet namespace | |
422 | |
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