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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 "net/ssl/server_bound_cert_service.h" | |
| 6 | |
| 7 #include <algorithm> | |
| 8 #include <limits> | |
| 9 | |
| 10 #include "base/bind.h" | |
| 11 #include "base/bind_helpers.h" | |
| 12 #include "base/callback_helpers.h" | |
| 13 #include "base/compiler_specific.h" | |
| 14 #include "base/location.h" | |
| 15 #include "base/logging.h" | |
| 16 #include "base/memory/ref_counted.h" | |
| 17 #include "base/memory/scoped_ptr.h" | |
| 18 #include "base/message_loop/message_loop_proxy.h" | |
| 19 #include "base/metrics/histogram.h" | |
| 20 #include "base/rand_util.h" | |
| 21 #include "base/stl_util.h" | |
| 22 #include "base/task_runner.h" | |
| 23 #include "crypto/ec_private_key.h" | |
| 24 #include "net/base/net_errors.h" | |
| 25 #include "net/base/registry_controlled_domains/registry_controlled_domain.h" | |
| 26 #include "net/cert/x509_certificate.h" | |
| 27 #include "net/cert/x509_util.h" | |
| 28 #include "url/gurl.h" | |
| 29 | |
| 30 #if defined(USE_NSS) | |
| 31 #include <private/pprthred.h> // PR_DetachThread | |
| 32 #endif | |
| 33 | |
| 34 namespace net { | |
| 35 | |
| 36 namespace { | |
| 37 | |
| 38 const int kValidityPeriodInDays = 365; | |
| 39 // When we check the system time, we add this many days to the end of the check | |
| 40 // so the result will still hold even after chrome has been running for a | |
| 41 // while. | |
| 42 const int kSystemTimeValidityBufferInDays = 90; | |
| 43 | |
| 44 // Used by the GetDomainBoundCertResult histogram to record the final | |
| 45 // outcome of each GetDomainBoundCert or GetOrCreateDomainBoundCert call. | |
| 46 // Do not re-use values. | |
| 47 enum GetCertResult { | |
| 48 // Synchronously found and returned an existing domain bound cert. | |
| 49 SYNC_SUCCESS = 0, | |
| 50 // Retrieved or generated and returned a domain bound cert asynchronously. | |
| 51 ASYNC_SUCCESS = 1, | |
| 52 // Retrieval/generation request was cancelled before the cert generation | |
| 53 // completed. | |
| 54 ASYNC_CANCELLED = 2, | |
| 55 // Cert generation failed. | |
| 56 ASYNC_FAILURE_KEYGEN = 3, | |
| 57 ASYNC_FAILURE_CREATE_CERT = 4, | |
| 58 ASYNC_FAILURE_EXPORT_KEY = 5, | |
| 59 ASYNC_FAILURE_UNKNOWN = 6, | |
| 60 // GetDomainBoundCert or GetOrCreateDomainBoundCert was called with | |
| 61 // invalid arguments. | |
| 62 INVALID_ARGUMENT = 7, | |
| 63 // We don't support any of the cert types the server requested. | |
| 64 UNSUPPORTED_TYPE = 8, | |
| 65 // Server asked for a different type of certs while we were generating one. | |
| 66 TYPE_MISMATCH = 9, | |
| 67 // Couldn't start a worker to generate a cert. | |
| 68 WORKER_FAILURE = 10, | |
| 69 GET_CERT_RESULT_MAX | |
| 70 }; | |
| 71 | |
| 72 void RecordGetDomainBoundCertResult(GetCertResult result) { | |
| 73 UMA_HISTOGRAM_ENUMERATION("DomainBoundCerts.GetDomainBoundCertResult", result, | |
| 74 GET_CERT_RESULT_MAX); | |
| 75 } | |
| 76 | |
| 77 void RecordGetCertTime(base::TimeDelta request_time) { | |
| 78 UMA_HISTOGRAM_CUSTOM_TIMES("DomainBoundCerts.GetCertTime", | |
| 79 request_time, | |
| 80 base::TimeDelta::FromMilliseconds(1), | |
| 81 base::TimeDelta::FromMinutes(5), | |
| 82 50); | |
| 83 } | |
| 84 | |
| 85 // On success, returns a ServerBoundCert object and sets |*error| to OK. | |
| 86 // Otherwise, returns NULL, and |*error| will be set to a net error code. | |
| 87 // |serial_number| is passed in because base::RandInt cannot be called from an | |
| 88 // unjoined thread, due to relying on a non-leaked LazyInstance | |
| 89 scoped_ptr<ServerBoundCertStore::ServerBoundCert> GenerateCert( | |
| 90 const std::string& server_identifier, | |
| 91 uint32 serial_number, | |
| 92 int* error) { | |
| 93 scoped_ptr<ServerBoundCertStore::ServerBoundCert> result; | |
| 94 | |
| 95 base::TimeTicks start = base::TimeTicks::Now(); | |
| 96 base::Time not_valid_before = base::Time::Now(); | |
| 97 base::Time not_valid_after = | |
| 98 not_valid_before + base::TimeDelta::FromDays(kValidityPeriodInDays); | |
| 99 std::string der_cert; | |
| 100 std::vector<uint8> private_key_info; | |
| 101 scoped_ptr<crypto::ECPrivateKey> key; | |
| 102 if (!x509_util::CreateKeyAndDomainBoundCertEC(server_identifier, | |
| 103 serial_number, | |
| 104 not_valid_before, | |
| 105 not_valid_after, | |
| 106 &key, | |
| 107 &der_cert)) { | |
| 108 DLOG(ERROR) << "Unable to create x509 cert for client"; | |
| 109 *error = ERR_ORIGIN_BOUND_CERT_GENERATION_FAILED; | |
| 110 return result.Pass(); | |
| 111 } | |
| 112 | |
| 113 if (!key->ExportEncryptedPrivateKey(ServerBoundCertService::kEPKIPassword, | |
| 114 1, &private_key_info)) { | |
| 115 DLOG(ERROR) << "Unable to export private key"; | |
| 116 *error = ERR_PRIVATE_KEY_EXPORT_FAILED; | |
| 117 return result.Pass(); | |
| 118 } | |
| 119 | |
| 120 // TODO(rkn): Perhaps ExportPrivateKey should be changed to output a | |
| 121 // std::string* to prevent this copying. | |
| 122 std::string key_out(private_key_info.begin(), private_key_info.end()); | |
| 123 | |
| 124 result.reset(new ServerBoundCertStore::ServerBoundCert( | |
| 125 server_identifier, | |
| 126 not_valid_before, | |
| 127 not_valid_after, | |
| 128 key_out, | |
| 129 der_cert)); | |
| 130 UMA_HISTOGRAM_CUSTOM_TIMES("DomainBoundCerts.GenerateCertTime", | |
| 131 base::TimeTicks::Now() - start, | |
| 132 base::TimeDelta::FromMilliseconds(1), | |
| 133 base::TimeDelta::FromMinutes(5), | |
| 134 50); | |
| 135 *error = OK; | |
| 136 return result.Pass(); | |
| 137 } | |
| 138 | |
| 139 } // namespace | |
| 140 | |
| 141 // Represents the output and result callback of a request. | |
| 142 class ServerBoundCertServiceRequest { | |
| 143 public: | |
| 144 ServerBoundCertServiceRequest(base::TimeTicks request_start, | |
| 145 const CompletionCallback& callback, | |
| 146 std::string* private_key, | |
| 147 std::string* cert) | |
| 148 : request_start_(request_start), | |
| 149 callback_(callback), | |
| 150 private_key_(private_key), | |
| 151 cert_(cert) { | |
| 152 } | |
| 153 | |
| 154 // Ensures that the result callback will never be made. | |
| 155 void Cancel() { | |
| 156 RecordGetDomainBoundCertResult(ASYNC_CANCELLED); | |
| 157 callback_.Reset(); | |
| 158 private_key_ = NULL; | |
| 159 cert_ = NULL; | |
| 160 } | |
| 161 | |
| 162 // Copies the contents of |private_key| and |cert| to the caller's output | |
| 163 // arguments and calls the callback. | |
| 164 void Post(int error, | |
| 165 const std::string& private_key, | |
| 166 const std::string& cert) { | |
| 167 switch (error) { | |
| 168 case OK: { | |
| 169 base::TimeDelta request_time = base::TimeTicks::Now() - request_start_; | |
| 170 UMA_HISTOGRAM_CUSTOM_TIMES("DomainBoundCerts.GetCertTimeAsync", | |
| 171 request_time, | |
| 172 base::TimeDelta::FromMilliseconds(1), | |
| 173 base::TimeDelta::FromMinutes(5), | |
| 174 50); | |
| 175 RecordGetCertTime(request_time); | |
| 176 RecordGetDomainBoundCertResult(ASYNC_SUCCESS); | |
| 177 break; | |
| 178 } | |
| 179 case ERR_KEY_GENERATION_FAILED: | |
| 180 RecordGetDomainBoundCertResult(ASYNC_FAILURE_KEYGEN); | |
| 181 break; | |
| 182 case ERR_ORIGIN_BOUND_CERT_GENERATION_FAILED: | |
| 183 RecordGetDomainBoundCertResult(ASYNC_FAILURE_CREATE_CERT); | |
| 184 break; | |
| 185 case ERR_PRIVATE_KEY_EXPORT_FAILED: | |
| 186 RecordGetDomainBoundCertResult(ASYNC_FAILURE_EXPORT_KEY); | |
| 187 break; | |
| 188 case ERR_INSUFFICIENT_RESOURCES: | |
| 189 RecordGetDomainBoundCertResult(WORKER_FAILURE); | |
| 190 break; | |
| 191 default: | |
| 192 RecordGetDomainBoundCertResult(ASYNC_FAILURE_UNKNOWN); | |
| 193 break; | |
| 194 } | |
| 195 if (!callback_.is_null()) { | |
| 196 *private_key_ = private_key; | |
| 197 *cert_ = cert; | |
| 198 callback_.Run(error); | |
| 199 } | |
| 200 delete this; | |
| 201 } | |
| 202 | |
| 203 bool canceled() const { return callback_.is_null(); } | |
| 204 | |
| 205 private: | |
| 206 base::TimeTicks request_start_; | |
| 207 CompletionCallback callback_; | |
| 208 std::string* private_key_; | |
| 209 std::string* cert_; | |
| 210 }; | |
| 211 | |
| 212 // ServerBoundCertServiceWorker runs on a worker thread and takes care of the | |
| 213 // blocking process of performing key generation. Will take care of deleting | |
| 214 // itself once Start() is called. | |
| 215 class ServerBoundCertServiceWorker { | |
| 216 public: | |
| 217 typedef base::Callback<void( | |
| 218 const std::string&, | |
| 219 int, | |
| 220 scoped_ptr<ServerBoundCertStore::ServerBoundCert>)> WorkerDoneCallback; | |
| 221 | |
| 222 ServerBoundCertServiceWorker( | |
| 223 const std::string& server_identifier, | |
| 224 const WorkerDoneCallback& callback) | |
| 225 : server_identifier_(server_identifier), | |
| 226 serial_number_(base::RandInt(0, std::numeric_limits<int>::max())), | |
| 227 origin_loop_(base::MessageLoopProxy::current()), | |
| 228 callback_(callback) { | |
| 229 } | |
| 230 | |
| 231 // Starts the worker on |task_runner|. If the worker fails to start, such as | |
| 232 // if the task runner is shutting down, then it will take care of deleting | |
| 233 // itself. | |
| 234 bool Start(const scoped_refptr<base::TaskRunner>& task_runner) { | |
| 235 DCHECK(origin_loop_->RunsTasksOnCurrentThread()); | |
| 236 | |
| 237 return task_runner->PostTask( | |
| 238 FROM_HERE, | |
| 239 base::Bind(&ServerBoundCertServiceWorker::Run, base::Owned(this))); | |
| 240 } | |
| 241 | |
| 242 private: | |
| 243 void Run() { | |
| 244 // Runs on a worker thread. | |
| 245 int error = ERR_FAILED; | |
| 246 scoped_ptr<ServerBoundCertStore::ServerBoundCert> cert = | |
| 247 GenerateCert(server_identifier_, serial_number_, &error); | |
| 248 DVLOG(1) << "GenerateCert " << server_identifier_ << " returned " << error; | |
| 249 #if defined(USE_NSS) | |
| 250 // Detach the thread from NSPR. | |
| 251 // Calling NSS functions attaches the thread to NSPR, which stores | |
| 252 // the NSPR thread ID in thread-specific data. | |
| 253 // The threads in our thread pool terminate after we have called | |
| 254 // PR_Cleanup. Unless we detach them from NSPR, net_unittests gets | |
| 255 // segfaults on shutdown when the threads' thread-specific data | |
| 256 // destructors run. | |
| 257 PR_DetachThread(); | |
| 258 #endif | |
| 259 origin_loop_->PostTask(FROM_HERE, | |
| 260 base::Bind(callback_, server_identifier_, error, | |
| 261 base::Passed(&cert))); | |
| 262 } | |
| 263 | |
| 264 const std::string server_identifier_; | |
| 265 // Note that serial_number_ must be initialized on a non-worker thread | |
| 266 // (see documentation for GenerateCert). | |
| 267 uint32 serial_number_; | |
| 268 scoped_refptr<base::SequencedTaskRunner> origin_loop_; | |
| 269 WorkerDoneCallback callback_; | |
| 270 | |
| 271 DISALLOW_COPY_AND_ASSIGN(ServerBoundCertServiceWorker); | |
| 272 }; | |
| 273 | |
| 274 // A ServerBoundCertServiceJob is a one-to-one counterpart of an | |
| 275 // ServerBoundCertServiceWorker. It lives only on the ServerBoundCertService's | |
| 276 // origin message loop. | |
| 277 class ServerBoundCertServiceJob { | |
| 278 public: | |
| 279 ServerBoundCertServiceJob(bool create_if_missing) | |
| 280 : create_if_missing_(create_if_missing) { | |
| 281 } | |
| 282 | |
| 283 ~ServerBoundCertServiceJob() { | |
| 284 if (!requests_.empty()) | |
| 285 DeleteAllCanceled(); | |
| 286 } | |
| 287 | |
| 288 void AddRequest(ServerBoundCertServiceRequest* request, | |
| 289 bool create_if_missing = false) { | |
| 290 create_if_missing_ |= create_if_missing; | |
| 291 requests_.push_back(request); | |
| 292 } | |
| 293 | |
| 294 void HandleResult(int error, | |
| 295 const std::string& private_key, | |
| 296 const std::string& cert) { | |
| 297 PostAll(error, private_key, cert); | |
| 298 } | |
| 299 | |
| 300 bool CreateIfMissing() const { return create_if_missing_; } | |
| 301 | |
| 302 private: | |
| 303 void PostAll(int error, | |
| 304 const std::string& private_key, | |
| 305 const std::string& cert) { | |
| 306 std::vector<ServerBoundCertServiceRequest*> requests; | |
| 307 requests_.swap(requests); | |
| 308 | |
| 309 for (std::vector<ServerBoundCertServiceRequest*>::iterator | |
| 310 i = requests.begin(); i != requests.end(); i++) { | |
| 311 (*i)->Post(error, private_key, cert); | |
| 312 // Post() causes the ServerBoundCertServiceRequest to delete itself. | |
| 313 } | |
| 314 } | |
| 315 | |
| 316 void DeleteAllCanceled() { | |
| 317 for (std::vector<ServerBoundCertServiceRequest*>::iterator | |
| 318 i = requests_.begin(); i != requests_.end(); i++) { | |
| 319 if ((*i)->canceled()) { | |
| 320 delete *i; | |
| 321 } else { | |
| 322 LOG(DFATAL) << "ServerBoundCertServiceRequest leaked!"; | |
| 323 } | |
| 324 } | |
| 325 } | |
| 326 | |
| 327 std::vector<ServerBoundCertServiceRequest*> requests_; | |
| 328 bool create_if_missing_; | |
| 329 }; | |
| 330 | |
| 331 // static | |
| 332 const char ServerBoundCertService::kEPKIPassword[] = ""; | |
| 333 | |
| 334 ServerBoundCertService::RequestHandle::RequestHandle() | |
| 335 : service_(NULL), | |
| 336 request_(NULL) {} | |
| 337 | |
| 338 ServerBoundCertService::RequestHandle::~RequestHandle() { | |
| 339 Cancel(); | |
| 340 } | |
| 341 | |
| 342 void ServerBoundCertService::RequestHandle::Cancel() { | |
| 343 if (request_) { | |
| 344 service_->CancelRequest(request_); | |
| 345 request_ = NULL; | |
| 346 callback_.Reset(); | |
| 347 } | |
| 348 } | |
| 349 | |
| 350 void ServerBoundCertService::RequestHandle::RequestStarted( | |
| 351 ServerBoundCertService* service, | |
| 352 ServerBoundCertServiceRequest* request, | |
| 353 const CompletionCallback& callback) { | |
| 354 DCHECK(request_ == NULL); | |
| 355 service_ = service; | |
| 356 request_ = request; | |
| 357 callback_ = callback; | |
| 358 } | |
| 359 | |
| 360 void ServerBoundCertService::RequestHandle::OnRequestComplete(int result) { | |
| 361 request_ = NULL; | |
| 362 // Running the callback might delete |this|, so we can't touch any of our | |
| 363 // members afterwards. Reset callback_ first. | |
| 364 base::ResetAndReturn(&callback_).Run(result); | |
| 365 } | |
| 366 | |
| 367 ServerBoundCertService::ServerBoundCertService( | |
| 368 ServerBoundCertStore* server_bound_cert_store, | |
| 369 const scoped_refptr<base::TaskRunner>& task_runner) | |
| 370 : server_bound_cert_store_(server_bound_cert_store), | |
| 371 task_runner_(task_runner), | |
| 372 requests_(0), | |
| 373 cert_store_hits_(0), | |
| 374 inflight_joins_(0), | |
| 375 workers_created_(0), | |
| 376 weak_ptr_factory_(this) { | |
| 377 base::Time start = base::Time::Now(); | |
| 378 base::Time end = start + base::TimeDelta::FromDays( | |
| 379 kValidityPeriodInDays + kSystemTimeValidityBufferInDays); | |
| 380 is_system_time_valid_ = x509_util::IsSupportedValidityRange(start, end); | |
| 381 } | |
| 382 | |
| 383 ServerBoundCertService::~ServerBoundCertService() { | |
| 384 STLDeleteValues(&inflight_); | |
| 385 } | |
| 386 | |
| 387 //static | |
| 388 std::string ServerBoundCertService::GetDomainForHost(const std::string& host) { | |
| 389 std::string domain = | |
| 390 registry_controlled_domains::GetDomainAndRegistry( | |
| 391 host, registry_controlled_domains::INCLUDE_PRIVATE_REGISTRIES); | |
| 392 if (domain.empty()) | |
| 393 return host; | |
| 394 return domain; | |
| 395 } | |
| 396 | |
| 397 int ServerBoundCertService::GetOrCreateDomainBoundCert( | |
| 398 const std::string& host, | |
| 399 std::string* private_key, | |
| 400 std::string* cert, | |
| 401 const CompletionCallback& callback, | |
| 402 RequestHandle* out_req) { | |
| 403 DVLOG(1) << __FUNCTION__ << " " << host; | |
| 404 DCHECK(CalledOnValidThread()); | |
| 405 base::TimeTicks request_start = base::TimeTicks::Now(); | |
| 406 | |
| 407 if (callback.is_null() || !private_key || !cert || host.empty()) { | |
| 408 RecordGetDomainBoundCertResult(INVALID_ARGUMENT); | |
| 409 return ERR_INVALID_ARGUMENT; | |
| 410 } | |
| 411 | |
| 412 std::string domain = GetDomainForHost(host); | |
| 413 if (domain.empty()) { | |
| 414 RecordGetDomainBoundCertResult(INVALID_ARGUMENT); | |
| 415 return ERR_INVALID_ARGUMENT; | |
| 416 } | |
| 417 | |
| 418 requests_++; | |
| 419 | |
| 420 // See if a request for the same domain is currently in flight. | |
| 421 bool create_if_missing = true; | |
| 422 if (JoinToInFlightRequest(request_start, domain, private_key, cert, | |
| 423 create_if_missing, callback, out_req)) { | |
| 424 return ERR_IO_PENDING; | |
| 425 } | |
| 426 | |
| 427 int err = LookupDomainBoundCert(request_start, domain, private_key, cert, | |
| 428 create_if_missing, callback, out_req); | |
| 429 if (err == ERR_FILE_NOT_FOUND) { | |
| 430 // Sync lookup did not find a valid cert. Start generating a new one. | |
| 431 workers_created_++; | |
| 432 ServerBoundCertServiceWorker* worker = new ServerBoundCertServiceWorker( | |
| 433 domain, | |
| 434 base::Bind(&ServerBoundCertService::GeneratedServerBoundCert, | |
| 435 weak_ptr_factory_.GetWeakPtr())); | |
| 436 if (!worker->Start(task_runner_)) { | |
| 437 // TODO(rkn): Log to the NetLog. | |
| 438 LOG(ERROR) << "ServerBoundCertServiceWorker couldn't be started."; | |
| 439 RecordGetDomainBoundCertResult(WORKER_FAILURE); | |
| 440 return ERR_INSUFFICIENT_RESOURCES; | |
| 441 } | |
| 442 // We are waiting for cert generation. Create a job & request to track it. | |
| 443 ServerBoundCertServiceJob* job = | |
| 444 new ServerBoundCertServiceJob(create_if_missing); | |
| 445 inflight_[domain] = job; | |
| 446 | |
| 447 ServerBoundCertServiceRequest* request = new ServerBoundCertServiceRequest( | |
| 448 request_start, | |
| 449 base::Bind(&RequestHandle::OnRequestComplete, | |
| 450 base::Unretained(out_req)), | |
| 451 private_key, | |
| 452 cert); | |
| 453 job->AddRequest(request); | |
| 454 out_req->RequestStarted(this, request, callback); | |
| 455 return ERR_IO_PENDING; | |
| 456 } | |
| 457 | |
| 458 return err; | |
| 459 } | |
| 460 | |
| 461 int ServerBoundCertService::GetDomainBoundCert( | |
| 462 const std::string& host, | |
| 463 std::string* private_key, | |
| 464 std::string* cert, | |
| 465 const CompletionCallback& callback, | |
| 466 RequestHandle* out_req) { | |
| 467 DVLOG(1) << __FUNCTION__ << " " << host; | |
| 468 DCHECK(CalledOnValidThread()); | |
| 469 base::TimeTicks request_start = base::TimeTicks::Now(); | |
| 470 | |
| 471 if (callback.is_null() || !private_key || !cert || host.empty()) { | |
| 472 RecordGetDomainBoundCertResult(INVALID_ARGUMENT); | |
| 473 return ERR_INVALID_ARGUMENT; | |
| 474 } | |
| 475 | |
| 476 std::string domain = GetDomainForHost(host); | |
| 477 if (domain.empty()) { | |
| 478 RecordGetDomainBoundCertResult(INVALID_ARGUMENT); | |
| 479 return ERR_INVALID_ARGUMENT; | |
| 480 } | |
| 481 | |
| 482 requests_++; | |
| 483 | |
| 484 // See if a request for the same domain currently in flight. | |
| 485 bool create_if_missing = false; | |
| 486 if (JoinToInFlightRequest(request_start, domain, private_key, cert, | |
| 487 create_if_missing, callback, out_req)) { | |
| 488 return ERR_IO_PENDING; | |
| 489 } | |
| 490 | |
| 491 int err = LookupDomainBoundCert(request_start, domain, private_key, cert, | |
| 492 create_if_missing, callback, out_req); | |
| 493 return err; | |
| 494 } | |
| 495 | |
| 496 void ServerBoundCertService::GotServerBoundCert( | |
| 497 int err, | |
| 498 const std::string& server_identifier, | |
| 499 base::Time expiration_time, | |
| 500 const std::string& key, | |
| 501 const std::string& cert) { | |
| 502 DCHECK(CalledOnValidThread()); | |
| 503 | |
| 504 std::map<std::string, ServerBoundCertServiceJob*>::iterator j; | |
| 505 j = inflight_.find(server_identifier); | |
| 506 if (j == inflight_.end()) { | |
| 507 NOTREACHED(); | |
| 508 return; | |
| 509 } | |
| 510 | |
| 511 if (err == OK) { | |
| 512 // Async DB lookup found a valid cert. | |
| 513 DVLOG(1) << "Cert store had valid cert for " << server_identifier; | |
| 514 cert_store_hits_++; | |
| 515 // ServerBoundCertServiceRequest::Post will do the histograms and stuff. | |
| 516 HandleResult(OK, server_identifier, key, cert); | |
| 517 return; | |
| 518 } | |
| 519 // Async lookup failed or the certificate was missing. Return the error | |
| 520 // directly, unless the certificate was missing and a request asked to create | |
| 521 // one. | |
| 522 if (err != ERR_FILE_NOT_FOUND || !j->second->CreateIfMissing()) { | |
| 523 HandleResult(err, server_identifier, key, cert); | |
| 524 return; | |
| 525 } | |
| 526 // At least one request asked to create a cert => start generating a new one. | |
| 527 workers_created_++; | |
| 528 ServerBoundCertServiceWorker* worker = new ServerBoundCertServiceWorker( | |
| 529 server_identifier, | |
| 530 base::Bind(&ServerBoundCertService::GeneratedServerBoundCert, | |
| 531 weak_ptr_factory_.GetWeakPtr())); | |
| 532 if (!worker->Start(task_runner_)) { | |
| 533 // TODO(rkn): Log to the NetLog. | |
| 534 LOG(ERROR) << "ServerBoundCertServiceWorker couldn't be started."; | |
| 535 HandleResult(ERR_INSUFFICIENT_RESOURCES, | |
| 536 server_identifier, | |
| 537 std::string(), | |
| 538 std::string()); | |
| 539 } | |
| 540 } | |
| 541 | |
| 542 ServerBoundCertStore* ServerBoundCertService::GetCertStore() { | |
| 543 return server_bound_cert_store_.get(); | |
| 544 } | |
| 545 | |
| 546 void ServerBoundCertService::CancelRequest(ServerBoundCertServiceRequest* req) { | |
| 547 DCHECK(CalledOnValidThread()); | |
| 548 req->Cancel(); | |
| 549 } | |
| 550 | |
| 551 void ServerBoundCertService::GeneratedServerBoundCert( | |
| 552 const std::string& server_identifier, | |
| 553 int error, | |
| 554 scoped_ptr<ServerBoundCertStore::ServerBoundCert> cert) { | |
| 555 DCHECK(CalledOnValidThread()); | |
| 556 | |
| 557 if (error == OK) { | |
| 558 // TODO(mattm): we should just Pass() the cert object to | |
| 559 // SetServerBoundCert(). | |
| 560 server_bound_cert_store_->SetServerBoundCert( | |
| 561 cert->server_identifier(), | |
| 562 cert->creation_time(), | |
| 563 cert->expiration_time(), | |
| 564 cert->private_key(), | |
| 565 cert->cert()); | |
| 566 | |
| 567 HandleResult(error, server_identifier, cert->private_key(), cert->cert()); | |
| 568 } else { | |
| 569 HandleResult(error, server_identifier, std::string(), std::string()); | |
| 570 } | |
| 571 } | |
| 572 | |
| 573 void ServerBoundCertService::HandleResult( | |
| 574 int error, | |
| 575 const std::string& server_identifier, | |
| 576 const std::string& private_key, | |
| 577 const std::string& cert) { | |
| 578 DCHECK(CalledOnValidThread()); | |
| 579 | |
| 580 std::map<std::string, ServerBoundCertServiceJob*>::iterator j; | |
| 581 j = inflight_.find(server_identifier); | |
| 582 if (j == inflight_.end()) { | |
| 583 NOTREACHED(); | |
| 584 return; | |
| 585 } | |
| 586 ServerBoundCertServiceJob* job = j->second; | |
| 587 inflight_.erase(j); | |
| 588 | |
| 589 job->HandleResult(error, private_key, cert); | |
| 590 delete job; | |
| 591 } | |
| 592 | |
| 593 bool ServerBoundCertService::JoinToInFlightRequest( | |
| 594 const base::TimeTicks& request_start, | |
| 595 const std::string& domain, | |
| 596 std::string* private_key, | |
| 597 std::string* cert, | |
| 598 bool create_if_missing, | |
| 599 const CompletionCallback& callback, | |
| 600 RequestHandle* out_req) { | |
| 601 ServerBoundCertServiceJob* job = NULL; | |
| 602 std::map<std::string, ServerBoundCertServiceJob*>::const_iterator j = | |
| 603 inflight_.find(domain); | |
| 604 if (j != inflight_.end()) { | |
| 605 // A request for the same domain is in flight already. We'll attach our | |
| 606 // callback, but we'll also mark it as requiring a cert if one's mising. | |
| 607 job = j->second; | |
| 608 inflight_joins_++; | |
| 609 | |
| 610 ServerBoundCertServiceRequest* request = new ServerBoundCertServiceRequest( | |
| 611 request_start, | |
| 612 base::Bind(&RequestHandle::OnRequestComplete, | |
| 613 base::Unretained(out_req)), | |
| 614 private_key, | |
| 615 cert); | |
| 616 job->AddRequest(request, create_if_missing); | |
| 617 out_req->RequestStarted(this, request, callback); | |
| 618 return true; | |
| 619 } | |
| 620 return false; | |
| 621 } | |
| 622 | |
| 623 int ServerBoundCertService::LookupDomainBoundCert( | |
| 624 const base::TimeTicks& request_start, | |
| 625 const std::string& domain, | |
| 626 std::string* private_key, | |
| 627 std::string* cert, | |
| 628 bool create_if_missing, | |
| 629 const CompletionCallback& callback, | |
| 630 RequestHandle* out_req) { | |
| 631 // Check if a domain bound cert already exists for this domain. Note that | |
| 632 // |expiration_time| is ignored, and expired certs are considered valid. | |
| 633 base::Time expiration_time; | |
| 634 int err = server_bound_cert_store_->GetServerBoundCert( | |
| 635 domain, | |
| 636 &expiration_time /* ignored */, | |
| 637 private_key, | |
| 638 cert, | |
| 639 base::Bind(&ServerBoundCertService::GotServerBoundCert, | |
| 640 weak_ptr_factory_.GetWeakPtr())); | |
| 641 | |
| 642 if (err == OK) { | |
| 643 // Sync lookup found a valid cert. | |
| 644 DVLOG(1) << "Cert store had valid cert for " << domain; | |
| 645 cert_store_hits_++; | |
| 646 RecordGetDomainBoundCertResult(SYNC_SUCCESS); | |
| 647 base::TimeDelta request_time = base::TimeTicks::Now() - request_start; | |
| 648 UMA_HISTOGRAM_TIMES("DomainBoundCerts.GetCertTimeSync", request_time); | |
| 649 RecordGetCertTime(request_time); | |
| 650 return OK; | |
| 651 } | |
| 652 | |
| 653 if (err == ERR_IO_PENDING) { | |
| 654 // We are waiting for async DB lookup. Create a job & request to track it. | |
| 655 ServerBoundCertServiceJob* job = | |
| 656 new ServerBoundCertServiceJob(create_if_missing); | |
| 657 inflight_[domain] = job; | |
| 658 | |
| 659 ServerBoundCertServiceRequest* request = new ServerBoundCertServiceRequest( | |
| 660 request_start, | |
| 661 base::Bind(&RequestHandle::OnRequestComplete, | |
| 662 base::Unretained(out_req)), | |
| 663 private_key, | |
| 664 cert); | |
| 665 job->AddRequest(request); | |
| 666 out_req->RequestStarted(this, request, callback); | |
| 667 return ERR_IO_PENDING; | |
| 668 } | |
| 669 | |
| 670 return err; | |
| 671 } | |
| 672 | |
| 673 int ServerBoundCertService::cert_count() { | |
| 674 return server_bound_cert_store_->GetCertCount(); | |
| 675 } | |
| 676 | |
| 677 } // namespace net | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 356713005:
Rename ServerBoundCert => ChannelID to reflect the current name (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src