src/chrome/browser/local_discovery/privet_http_impl.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 "chrome/browser/local_discovery/privet_http_impl.h"
   6
   7 #include <algorithm>
   8 #include <vector>
   9
  10 #include "base/bind.h"
  11 #include "base/message_loop/message_loop.h"
  12 #include "base/rand_util.h"
  13 #include "base/strings/string_number_conversions.h"
  14 #include "base/strings/stringprintf.h"
  15 #include "base/strings/utf_string_conversions.h"
  16 #include "chrome/browser/local_discovery/privet_constants.h"
  17 #include "components/cloud_devices/printer_description.h"
  18 #include "net/base/url_util.h"
  19 #include "printing/pwg_raster_settings.h"
  20 #include "printing/units.h"
  21 #include "ui/gfx/text_elider.h"
  22 #include "url/gurl.h"
  23
  24 using namespace cloud_devices::printer;
  25
  26 namespace local_discovery {
  27
  28 namespace {
  29 const char kUrlPlaceHolder[] = "http://host/";
  30 const char kPrivetRegisterActionArgName[] = "action";
  31 const char kPrivetRegisterUserArgName[] = "user";
  32
  33 const char kPrivetURLKeyUserName[] = "user_name";
  34 const char kPrivetURLKeyClientName[] = "client_name";
  35 const char kPrivetURLKeyJobname[] = "job_name";
  36 const char kPrivetURLKeyOffline[] = "offline";
  37 const char kPrivetURLValueOffline[] = "1";
  38 const char kPrivetURLValueClientName[] = "Chrome";
  39
  40 const char kPrivetContentTypePDF[] = "application/pdf";
  41 const char kPrivetContentTypePWGRaster[] = "image/pwg-raster";
  42 const char kPrivetContentTypeAny[] = "*/*";
  43 const char kPrivetContentTypeCJT[] = "application/json";
  44
  45 const char kPrivetStorageListPath[] = "/privet/storage/list";
  46 const char kPrivetStorageContentPath[] = "/privet/storage/content";
  47 const char kPrivetStorageParamPathFormat[] = "path=%s";
  48
  49 const char kPrivetKeyJobID[] = "job_id";
  50
  51 const int kPrivetCancelationTimeoutSeconds = 3;
  52
  53 const int kPrivetLocalPrintMaxRetries = 2;
  54
  55 const int kPrivetLocalPrintDefaultTimeout = 5;
  56
  57 const size_t kPrivetLocalPrintMaxJobNameLength = 64;
  58
  59 GURL CreatePrivetURL(const std::string& path) {
  60   GURL url(kUrlPlaceHolder);
  61   GURL::Replacements replacements;
  62   replacements.SetPathStr(path);
  63   return url.ReplaceComponents(replacements);
  64 }
  65
  66 GURL CreatePrivetRegisterURL(const std::string& action,
  67                              const std::string& user) {
  68   GURL url = CreatePrivetURL(kPrivetRegisterPath);
  69   url = net::AppendQueryParameter(url, kPrivetRegisterActionArgName, action);
  70   return net::AppendQueryParameter(url, kPrivetRegisterUserArgName, user);
  71 }
  72
  73 GURL CreatePrivetParamURL(const std::string& path,
  74                           const std::string& query_params) {
  75   GURL url(kUrlPlaceHolder);
  76   GURL::Replacements replacements;
  77   replacements.SetPathStr(path);
  78   if (!query_params.empty()) {
  79     replacements.SetQueryStr(query_params);
  80   }
  81   return url.ReplaceComponents(replacements);
  82 }
  83
  84 }  // namespace
  85
  86 PrivetInfoOperationImpl::PrivetInfoOperationImpl(
  87     PrivetHTTPClientImpl* privet_client,
  88     const PrivetJSONOperation::ResultCallback& callback)
  89     : privet_client_(privet_client), callback_(callback) {
  90 }
  91
  92 PrivetInfoOperationImpl::~PrivetInfoOperationImpl() {
  93 }
  94
  95 void PrivetInfoOperationImpl::Start() {
  96   url_fetcher_ = privet_client_->CreateURLFetcher(
  97       CreatePrivetURL(kPrivetInfoPath), net::URLFetcher::GET, this);
  98
  99   url_fetcher_->DoNotRetryOnTransientError();
 100   url_fetcher_->AllowEmptyPrivetToken();
 101
 102   url_fetcher_->Start();
 103 }
 104
 105 PrivetHTTPClient* PrivetInfoOperationImpl::GetHTTPClient() {
 106   return privet_client_;
 107 }
 108
 109 void PrivetInfoOperationImpl::OnError(PrivetURLFetcher* fetcher,
 110                                       PrivetURLFetcher::ErrorType error) {
 111   callback_.Run(NULL);
 112 }
 113
 114 void PrivetInfoOperationImpl::OnParsedJson(PrivetURLFetcher* fetcher,
 115                                            const base::DictionaryValue* value,
 116                                            bool has_error) {
 117   callback_.Run(value);
 118 }
 119
 120 PrivetRegisterOperationImpl::PrivetRegisterOperationImpl(
 121     PrivetHTTPClientImpl* privet_client,
 122     const std::string& user,
 123     PrivetRegisterOperation::Delegate* delegate)
 124     : user_(user), delegate_(delegate), privet_client_(privet_client),
 125       ongoing_(false) {
 126 }
 127
 128 PrivetRegisterOperationImpl::~PrivetRegisterOperationImpl() {
 129 }
 130
 131 void PrivetRegisterOperationImpl::Start() {
 132   ongoing_ = true;
 133   next_response_handler_ =
 134       base::Bind(&PrivetRegisterOperationImpl::StartResponse,
 135                  base::Unretained(this));
 136   SendRequest(kPrivetActionStart);
 137 }
 138
 139 void PrivetRegisterOperationImpl::Cancel() {
 140   url_fetcher_.reset();
 141
 142   if (ongoing_) {
 143     // Owned by the message loop.
 144     Cancelation* cancelation = new Cancelation(privet_client_, user_);
 145
 146     base::MessageLoop::current()->PostDelayedTask(
 147         FROM_HERE,
 148         base::Bind(&PrivetRegisterOperationImpl::Cancelation::Cleanup,
 149                    base::Owned(cancelation)),
 150         base::TimeDelta::FromSeconds(kPrivetCancelationTimeoutSeconds));
 151
 152     ongoing_ = false;
 153   }
 154 }
 155
 156 void PrivetRegisterOperationImpl::CompleteRegistration() {
 157   next_response_handler_ =
 158       base::Bind(&PrivetRegisterOperationImpl::CompleteResponse,
 159                  base::Unretained(this));
 160   SendRequest(kPrivetActionComplete);
 161 }
 162
 163 PrivetHTTPClient* PrivetRegisterOperationImpl::GetHTTPClient() {
 164   return privet_client_;
 165 }
 166
 167 void PrivetRegisterOperationImpl::OnError(PrivetURLFetcher* fetcher,
 168                                           PrivetURLFetcher::ErrorType error) {
 169   ongoing_ = false;
 170   int visible_http_code = -1;
 171   FailureReason reason = FAILURE_NETWORK;
 172
 173   if (error == PrivetURLFetcher::RESPONSE_CODE_ERROR) {
 174     visible_http_code = fetcher->response_code();
 175     reason = FAILURE_HTTP_ERROR;
 176   } else if (error == PrivetURLFetcher::JSON_PARSE_ERROR) {
 177     reason = FAILURE_MALFORMED_RESPONSE;
 178   } else if (error == PrivetURLFetcher::TOKEN_ERROR) {
 179     reason = FAILURE_TOKEN;
 180   } else if (error == PrivetURLFetcher::RETRY_ERROR) {
 181     reason = FAILURE_RETRY;
 182   }
 183
 184   delegate_->OnPrivetRegisterError(this,
 185                                    current_action_,
 186                                    reason,
 187                                    visible_http_code,
 188                                    NULL);
 189 }
 190
 191 void PrivetRegisterOperationImpl::OnParsedJson(
 192     PrivetURLFetcher* fetcher,
 193     const base::DictionaryValue* value,
 194     bool has_error) {
 195   if (has_error) {
 196     std::string error;
 197     value->GetString(kPrivetKeyError, &error);
 198
 199     ongoing_ = false;
 200     delegate_->OnPrivetRegisterError(this,
 201                                      current_action_,
 202                                      FAILURE_JSON_ERROR,
 203                                      fetcher->response_code(),
 204                                      value);
 205     return;
 206   }
 207
 208   // TODO(noamsml): Match the user&action with the user&action in the object,
 209   // and fail if different.
 210
 211   next_response_handler_.Run(*value);
 212 }
 213
 214 void PrivetRegisterOperationImpl::OnNeedPrivetToken(
 215     PrivetURLFetcher* fetcher,
 216     const PrivetURLFetcher::TokenCallback& callback) {
 217   privet_client_->RefreshPrivetToken(callback);
 218 }
 219
 220 void PrivetRegisterOperationImpl::SendRequest(const std::string& action) {
 221   current_action_ = action;
 222   url_fetcher_ = privet_client_->CreateURLFetcher(
 223       CreatePrivetRegisterURL(action, user_), net::URLFetcher::POST, this);
 224   url_fetcher_->Start();
 225 }
 226
 227 void PrivetRegisterOperationImpl::StartResponse(
 228     const base::DictionaryValue& value) {
 229   next_response_handler_ =
 230       base::Bind(&PrivetRegisterOperationImpl::GetClaimTokenResponse,
 231                  base::Unretained(this));
 232
 233   SendRequest(kPrivetActionGetClaimToken);
 234 }
 235
 236 void PrivetRegisterOperationImpl::GetClaimTokenResponse(
 237     const base::DictionaryValue& value) {
 238   std::string claimUrl;
 239   std::string claimToken;
 240   bool got_url = value.GetString(kPrivetKeyClaimURL, &claimUrl);
 241   bool got_token = value.GetString(kPrivetKeyClaimToken, &claimToken);
 242   if (got_url || got_token) {
 243     delegate_->OnPrivetRegisterClaimToken(this, claimToken, GURL(claimUrl));
 244   } else {
 245     delegate_->OnPrivetRegisterError(this,
 246                                      current_action_,
 247                                      FAILURE_MALFORMED_RESPONSE,
 248                                      -1,
 249                                      NULL);
 250   }
 251 }
 252
 253 void PrivetRegisterOperationImpl::CompleteResponse(
 254     const base::DictionaryValue& value) {
 255   std::string id;
 256   value.GetString(kPrivetKeyDeviceID, &id);
 257   ongoing_ = false;
 258   expected_id_ = id;
 259   StartInfoOperation();
 260 }
 261
 262 void PrivetRegisterOperationImpl::OnPrivetInfoDone(
 263     const base::DictionaryValue* value) {
 264   // TODO(noamsml): Simplify error case and depracate HTTP error value in
 265   // OnPrivetRegisterError.
 266   if (!value) {
 267     delegate_->OnPrivetRegisterError(this,
 268                                      kPrivetActionNameInfo,
 269                                      FAILURE_NETWORK,
 270                                      -1,
 271                                      NULL);
 272     return;
 273   }
 274
 275   if (!value->HasKey(kPrivetInfoKeyID)) {
 276     if (value->HasKey(kPrivetKeyError)) {
 277       delegate_->OnPrivetRegisterError(this,
 278                                        kPrivetActionNameInfo,
 279                                         FAILURE_JSON_ERROR,
 280                                        -1,
 281                                        value);
 282     } else {
 283       delegate_->OnPrivetRegisterError(this,
 284                                        kPrivetActionNameInfo,
 285                                        FAILURE_MALFORMED_RESPONSE,
 286                                        -1,
 287                                        NULL);
 288     }
 289     return;
 290   }
 291
 292   std::string id;
 293
 294   if (!value->GetString(kPrivetInfoKeyID, &id) ||
 295       id != expected_id_) {
 296     delegate_->OnPrivetRegisterError(this,
 297                                      kPrivetActionNameInfo,
 298                                      FAILURE_MALFORMED_RESPONSE,
 299                                      -1,
 300                                      NULL);
 301   } else {
 302     delegate_->OnPrivetRegisterDone(this, id);
 303   }
 304 }
 305
 306 void PrivetRegisterOperationImpl::StartInfoOperation() {
 307   info_operation_ = privet_client_->CreateInfoOperation(
 308       base::Bind(&PrivetRegisterOperationImpl::OnPrivetInfoDone,
 309                  base::Unretained(this)));
 310   info_operation_->Start();
 311 }
 312
 313 PrivetRegisterOperationImpl::Cancelation::Cancelation(
 314     PrivetHTTPClientImpl* privet_client,
 315     const std::string& user) {
 316   url_fetcher_ =
 317       privet_client->CreateURLFetcher(
 318           CreatePrivetRegisterURL(kPrivetActionCancel, user),
 319           net::URLFetcher::POST, this);
 320   url_fetcher_->DoNotRetryOnTransientError();
 321   url_fetcher_->Start();
 322 }
 323
 324 PrivetRegisterOperationImpl::Cancelation::~Cancelation() {
 325 }
 326
 327 void PrivetRegisterOperationImpl::Cancelation::OnError(
 328     PrivetURLFetcher* fetcher,
 329     PrivetURLFetcher::ErrorType error) {
 330 }
 331
 332 void PrivetRegisterOperationImpl::Cancelation::OnParsedJson(
 333     PrivetURLFetcher* fetcher,
 334     const base::DictionaryValue* value,
 335     bool has_error) {
 336 }
 337
 338 void PrivetRegisterOperationImpl::Cancelation::Cleanup() {
 339   // Nothing needs to be done, as base::Owned will delete this object,
 340   // this callback is just here to pass ownership of the Cancelation to
 341   // the message loop.
 342 }
 343
 344 PrivetJSONOperationImpl::PrivetJSONOperationImpl(
 345     PrivetHTTPClientImpl* privet_client,
 346     const std::string& path,
 347     const std::string& query_params,
 348     const PrivetJSONOperation::ResultCallback& callback)
 349     : privet_client_(privet_client), path_(path), query_params_(query_params),
 350       callback_(callback) {
 351 }
 352
 353 PrivetJSONOperationImpl::~PrivetJSONOperationImpl() {
 354 }
 355
 356 void PrivetJSONOperationImpl::Start() {
 357   url_fetcher_ = privet_client_->CreateURLFetcher(
 358       CreatePrivetParamURL(path_, query_params_), net::URLFetcher::GET, this);
 359   url_fetcher_->DoNotRetryOnTransientError();
 360   url_fetcher_->Start();
 361 }
 362
 363 PrivetHTTPClient* PrivetJSONOperationImpl::GetHTTPClient() {
 364   return privet_client_;
 365 }
 366
 367 void PrivetJSONOperationImpl::OnError(
 368     PrivetURLFetcher* fetcher,
 369     PrivetURLFetcher::ErrorType error) {
 370   callback_.Run(NULL);
 371 }
 372
 373 void PrivetJSONOperationImpl::OnParsedJson(
 374     PrivetURLFetcher* fetcher,
 375     const base::DictionaryValue* value,
 376     bool has_error) {
 377   callback_.Run(value);
 378 }
 379
 380 void PrivetJSONOperationImpl::OnNeedPrivetToken(
 381     PrivetURLFetcher* fetcher,
 382     const PrivetURLFetcher::TokenCallback& callback) {
 383   privet_client_->RefreshPrivetToken(callback);
 384 }
 385
 386 PrivetDataReadOperationImpl::PrivetDataReadOperationImpl(
 387     PrivetHTTPClientImpl* privet_client,
 388     const std::string& path,
 389     const std::string& query_params,
 390     const PrivetDataReadOperation::ResultCallback& callback)
 391     : privet_client_(privet_client), path_(path), query_params_(query_params),
 392       callback_(callback), has_range_(false), save_to_file_(false) {
 393 }
 394
 395 PrivetDataReadOperationImpl::~PrivetDataReadOperationImpl() {
 396 }
 397
 398
 399 void PrivetDataReadOperationImpl::Start() {
 400   url_fetcher_ = privet_client_->CreateURLFetcher(
 401       CreatePrivetParamURL(path_, query_params_), net::URLFetcher::GET, this);
 402   url_fetcher_->DoNotRetryOnTransientError();
 403
 404   if (has_range_) {
 405     url_fetcher_->SetByteRange(range_start_, range_end_);
 406   }
 407
 408   if (save_to_file_) {
 409     url_fetcher_->SaveResponseToFile();
 410   }
 411
 412   url_fetcher_->Start();
 413 }
 414
 415 void PrivetDataReadOperationImpl::SetDataRange(int range_start, int range_end) {
 416   has_range_ = true;
 417   range_start_ = range_start;
 418   range_end_ = range_end;
 419 }
 420
 421 void PrivetDataReadOperationImpl::SaveDataToFile() {
 422   save_to_file_ = false;
 423 }
 424
 425 PrivetHTTPClient* PrivetDataReadOperationImpl::GetHTTPClient() {
 426   return privet_client_;
 427 }
 428
 429 void PrivetDataReadOperationImpl::OnError(
 430     PrivetURLFetcher* fetcher,
 431     PrivetURLFetcher::ErrorType error) {
 432   callback_.Run(RESPONSE_TYPE_ERROR, std::string(), base::FilePath());
 433 }
 434
 435 void PrivetDataReadOperationImpl::OnParsedJson(
 436     PrivetURLFetcher* fetcher,
 437     const base::DictionaryValue* value,
 438     bool has_error) {
 439   NOTREACHED();
 440 }
 441
 442 void PrivetDataReadOperationImpl::OnNeedPrivetToken(
 443     PrivetURLFetcher* fetcher,
 444     const PrivetURLFetcher::TokenCallback& callback) {
 445   privet_client_->RefreshPrivetToken(callback);
 446 }
 447
 448 bool PrivetDataReadOperationImpl::OnRawData(PrivetURLFetcher* fetcher,
 449                                             bool is_file,
 450                                             const std::string& data_str,
 451                                             const base::FilePath& file_path) {
 452   ResponseType type = (is_file) ? RESPONSE_TYPE_FILE : RESPONSE_TYPE_STRING;
 453   callback_.Run(type, data_str, file_path);
 454   return true;
 455 }
 456
 457 PrivetLocalPrintOperationImpl::PrivetLocalPrintOperationImpl(
 458     PrivetHTTPClientImpl* privet_client,
 459     PrivetLocalPrintOperation::Delegate* delegate)
 460     : privet_client_(privet_client),
 461       delegate_(delegate),
 462       use_pdf_(false),
 463       has_extended_workflow_(false),
 464       started_(false),
 465       offline_(false),
 466       dpi_(printing::kDefaultPdfDpi),
 467       invalid_job_retries_(0),
 468       weak_factory_(this) {
 469 }
 470
 471 PrivetLocalPrintOperationImpl::~PrivetLocalPrintOperationImpl() {
 472 }
 473
 474 void PrivetLocalPrintOperationImpl::Start() {
 475   DCHECK(!started_);
 476
 477   // We need to get the /info response so we can know which APIs are available.
 478   // TODO(noamsml): Use cached info when available.
 479   info_operation_ = privet_client_->CreateInfoOperation(
 480       base::Bind(&PrivetLocalPrintOperationImpl::OnPrivetInfoDone,
 481                  base::Unretained(this)));
 482   info_operation_->Start();
 483
 484   started_ = true;
 485 }
 486
 487 void PrivetLocalPrintOperationImpl::OnPrivetInfoDone(
 488     const base::DictionaryValue* value) {
 489   if (value && !value->HasKey(kPrivetKeyError)) {
 490     has_extended_workflow_ = false;
 491     bool has_printing = false;
 492
 493     const base::ListValue* api_list;
 494     if (value->GetList(kPrivetInfoKeyAPIList, &api_list)) {
 495       for (size_t i = 0; i < api_list->GetSize(); i++) {
 496         std::string api;
 497         api_list->GetString(i, &api);
 498         if (api == kPrivetSubmitdocPath) {
 499           has_printing = true;
 500         } else if (api == kPrivetCreatejobPath) {
 501           has_extended_workflow_ = true;
 502         }
 503       }
 504     }
 505
 506     if (!has_printing) {
 507       delegate_->OnPrivetPrintingError(this, -1);
 508       return;
 509     }
 510
 511     StartInitialRequest();
 512   } else {
 513     delegate_->OnPrivetPrintingError(this, -1);
 514   }
 515 }
 516
 517 void PrivetLocalPrintOperationImpl::StartInitialRequest() {
 518   use_pdf_ = false;
 519   ContentTypesCapability content_types;
 520   if (content_types.LoadFrom(capabilities_)) {
 521     use_pdf_ = content_types.Contains(kPrivetContentTypePDF) ||
 522                content_types.Contains(kPrivetContentTypeAny);
 523   }
 524
 525   if (use_pdf_) {
 526     StartPrinting();
 527   } else {
 528     DpiCapability dpis;
 529     if (dpis.LoadFrom(capabilities_)) {
 530       dpi_ = std::max(dpis.GetDefault().horizontal, dpis.GetDefault().vertical);
 531     }
 532     StartConvertToPWG();
 533   }
 534 }
 535
 536 void PrivetLocalPrintOperationImpl::DoCreatejob() {
 537   current_response_ = base::Bind(
 538       &PrivetLocalPrintOperationImpl::OnCreatejobResponse,
 539       base::Unretained(this));
 540
 541   url_fetcher_= privet_client_->CreateURLFetcher(
 542       CreatePrivetURL(kPrivetCreatejobPath), net::URLFetcher::POST, this);
 543   url_fetcher_->SetUploadData(kPrivetContentTypeCJT, ticket_.ToString());
 544
 545   url_fetcher_->Start();
 546 }
 547
 548 void PrivetLocalPrintOperationImpl::DoSubmitdoc() {
 549   current_response_ = base::Bind(
 550       &PrivetLocalPrintOperationImpl::OnSubmitdocResponse,
 551       base::Unretained(this));
 552
 553   GURL url = CreatePrivetURL(kPrivetSubmitdocPath);
 554
 555   url = net::AppendQueryParameter(url,
 556                                   kPrivetURLKeyClientName,
 557                                   kPrivetURLValueClientName);
 558
 559   if (!user_.empty()) {
 560     url = net::AppendQueryParameter(url,
 561                                     kPrivetURLKeyUserName,
 562                                     user_);
 563   }
 564
 565   base::string16 shortened_jobname;
 566
 567   gfx::ElideString(base::UTF8ToUTF16(jobname_),
 568                    kPrivetLocalPrintMaxJobNameLength,
 569                    &shortened_jobname);
 570
 571   if (!jobname_.empty()) {
 572     url = net::AppendQueryParameter(
 573         url, kPrivetURLKeyJobname, base::UTF16ToUTF8(shortened_jobname));
 574   }
 575
 576   if (!jobid_.empty()) {
 577     url = net::AppendQueryParameter(url,
 578                                     kPrivetKeyJobID,
 579                                     jobid_);
 580   }
 581
 582   if (offline_) {
 583     url = net::AppendQueryParameter(url,
 584                                     kPrivetURLKeyOffline,
 585                                     kPrivetURLValueOffline);
 586   }
 587
 588   url_fetcher_= privet_client_->CreateURLFetcher(
 589       url, net::URLFetcher::POST, this);
 590
 591   if (!use_pdf_) {
 592     url_fetcher_->SetUploadFilePath(kPrivetContentTypePWGRaster,
 593                                     pwg_file_path_);
 594   } else {
 595     // TODO(noamsml): Move to file-based upload data?
 596     std::string data_str((const char*)data_->front(), data_->size());
 597     url_fetcher_->SetUploadData(kPrivetContentTypePDF, data_str);
 598   }
 599
 600   url_fetcher_->Start();
 601 }
 602
 603 void PrivetLocalPrintOperationImpl::StartPrinting() {
 604   if (has_extended_workflow_ && jobid_.empty()) {
 605     DoCreatejob();
 606   } else {
 607     DoSubmitdoc();
 608   }
 609 }
 610
 611 void PrivetLocalPrintOperationImpl::FillPwgRasterSettings(
 612     printing::PwgRasterSettings* transform_settings) {
 613   PwgRasterConfigCapability raster_capability;
 614   // If the raster capability fails to load, raster_capability will contain
 615   // the default value.
 616   raster_capability.LoadFrom(capabilities_);
 617
 618   DuplexTicketItem duplex_item;
 619   DuplexType duplex_value = NO_DUPLEX;
 620
 621   DocumentSheetBack document_sheet_back =
 622       raster_capability.value().document_sheet_back;
 623
 624   if (duplex_item.LoadFrom(ticket_)) {
 625     duplex_value = duplex_item.value();
 626   }
 627
 628   transform_settings->odd_page_transform = printing::TRANSFORM_NORMAL;
 629   switch (duplex_value) {
 630     case NO_DUPLEX:
 631       transform_settings->odd_page_transform = printing::TRANSFORM_NORMAL;
 632       break;
 633     case LONG_EDGE:
 634       if (document_sheet_back == ROTATED) {
 635         transform_settings->odd_page_transform = printing::TRANSFORM_ROTATE_180;
 636       } else if (document_sheet_back == FLIPPED) {
 637         transform_settings->odd_page_transform =
 638             printing::TRANSFORM_FLIP_VERTICAL;
 639       }
 640       break;
 641     case SHORT_EDGE:
 642       if (document_sheet_back == MANUAL_TUMBLE) {
 643         transform_settings->odd_page_transform = printing::TRANSFORM_ROTATE_180;
 644       } else if (document_sheet_back == FLIPPED) {
 645         transform_settings->odd_page_transform =
 646             printing::TRANSFORM_FLIP_HORIZONTAL;
 647       }
 648   }
 649
 650   transform_settings->rotate_all_pages =
 651       raster_capability.value().rotate_all_pages;
 652
 653   transform_settings->reverse_page_order =
 654       raster_capability.value().reverse_order_streaming;
 655 }
 656
 657 void PrivetLocalPrintOperationImpl::StartConvertToPWG() {
 658   printing::PwgRasterSettings transform_settings;
 659
 660   FillPwgRasterSettings(&transform_settings);
 661
 662   if (!pwg_raster_converter_)
 663     pwg_raster_converter_ = PWGRasterConverter::CreateDefault();
 664
 665   double scale = dpi_;
 666   scale /= printing::kPointsPerInch;
 667   // Make vertical rectangle to optimize streaming to printer. Fix orientation
 668   // by autorotate.
 669   gfx::Rect area(std::min(page_size_.width(), page_size_.height()) * scale,
 670                  std::max(page_size_.width(), page_size_.height()) * scale);
 671   pwg_raster_converter_->Start(
 672       data_,
 673       printing::PdfRenderSettings(area, dpi_, true),
 674       transform_settings,
 675       base::Bind(&PrivetLocalPrintOperationImpl::OnPWGRasterConverted,
 676                  base::Unretained(this)));
 677 }
 678
 679 void PrivetLocalPrintOperationImpl::OnSubmitdocResponse(
 680     bool has_error,
 681     const base::DictionaryValue* value) {
 682   std::string error;
 683   // This error is only relevant in the case of extended workflow:
 684   // If the print job ID is invalid, retry createjob and submitdoc,
 685   // rather than simply retrying the current request.
 686   if (has_error && value->GetString(kPrivetKeyError, &error)) {
 687     if (has_extended_workflow_ &&
 688         error == kPrivetErrorInvalidPrintJob &&
 689         invalid_job_retries_ < kPrivetLocalPrintMaxRetries) {
 690       invalid_job_retries_++;
 691
 692       int timeout = kPrivetLocalPrintDefaultTimeout;
 693       value->GetInteger(kPrivetKeyTimeout, &timeout);
 694
 695       double random_scaling_factor =
 696           1 + base::RandDouble() * kPrivetMaximumTimeRandomAddition;
 697
 698       timeout = static_cast<int>(timeout * random_scaling_factor);
 699
 700       timeout = std::max(timeout, kPrivetMinimumTimeout);
 701
 702       base::MessageLoop::current()->PostDelayedTask(
 703           FROM_HERE, base::Bind(&PrivetLocalPrintOperationImpl::DoCreatejob,
 704                                 weak_factory_.GetWeakPtr()),
 705           base::TimeDelta::FromSeconds(timeout));
 706     } else if (use_pdf_ && error == kPrivetErrorInvalidDocumentType) {
 707       use_pdf_ = false;
 708       StartConvertToPWG();
 709     } else {
 710       delegate_->OnPrivetPrintingError(this, 200);
 711     }
 712
 713     return;
 714   }
 715
 716   // If we've gotten this far, there are no errors, so we've effectively
 717   // succeeded.
 718   delegate_->OnPrivetPrintingDone(this);
 719 }
 720
 721 void PrivetLocalPrintOperationImpl::OnCreatejobResponse(
 722     bool has_error,
 723     const base::DictionaryValue* value) {
 724   if (has_error) {
 725     delegate_->OnPrivetPrintingError(this, 200);
 726     return;
 727   }
 728
 729   // Try to get job ID from value. If not, jobid_ will be empty and we will use
 730   // simple printing.
 731   value->GetString(kPrivetKeyJobID, &jobid_);
 732
 733   DoSubmitdoc();
 734 }
 735
 736 void PrivetLocalPrintOperationImpl::OnPWGRasterConverted(
 737     bool success,
 738     const base::FilePath& pwg_file_path) {
 739   if (!success) {
 740     delegate_->OnPrivetPrintingError(this, -1);
 741     return;
 742   }
 743
 744   DCHECK(!pwg_file_path.empty());
 745
 746   pwg_file_path_ = pwg_file_path;
 747   StartPrinting();
 748 }
 749
 750 PrivetHTTPClient* PrivetLocalPrintOperationImpl::GetHTTPClient() {
 751   return privet_client_;
 752 }
 753
 754 void PrivetLocalPrintOperationImpl::OnError(
 755     PrivetURLFetcher* fetcher,
 756     PrivetURLFetcher::ErrorType error) {
 757   delegate_->OnPrivetPrintingError(this, -1);
 758 }
 759
 760 void PrivetLocalPrintOperationImpl::OnParsedJson(
 761     PrivetURLFetcher* fetcher,
 762     const base::DictionaryValue* value,
 763     bool has_error) {
 764   DCHECK(!current_response_.is_null());
 765   current_response_.Run(has_error, value);
 766 }
 767
 768 void PrivetLocalPrintOperationImpl::OnNeedPrivetToken(
 769     PrivetURLFetcher* fetcher,
 770     const PrivetURLFetcher::TokenCallback& callback) {
 771   privet_client_->RefreshPrivetToken(callback);
 772 }
 773
 774 void PrivetLocalPrintOperationImpl::SetData(base::RefCountedBytes* data) {
 775   DCHECK(!started_);
 776   data_ = data;
 777 }
 778
 779 void PrivetLocalPrintOperationImpl::SetTicket(const std::string& ticket) {
 780   DCHECK(!started_);
 781   ticket_.InitFromString(ticket);
 782 }
 783
 784 void PrivetLocalPrintOperationImpl::SetCapabilities(
 785     const std::string& capabilities) {
 786   DCHECK(!started_);
 787   capabilities_.InitFromString(capabilities);
 788 }
 789
 790 void PrivetLocalPrintOperationImpl::SetUsername(const std::string& user) {
 791   DCHECK(!started_);
 792   user_= user;
 793 }
 794
 795 void PrivetLocalPrintOperationImpl::SetJobname(const std::string& jobname) {
 796   DCHECK(!started_);
 797   jobname_ = jobname;
 798 }
 799
 800 void PrivetLocalPrintOperationImpl::SetOffline(bool offline) {
 801   DCHECK(!started_);
 802   offline_ = offline;
 803 }
 804
 805 void PrivetLocalPrintOperationImpl::SetPageSize(const gfx::Size& page_size) {
 806   DCHECK(!started_);
 807   page_size_ = page_size;
 808 }
 809
 810 void PrivetLocalPrintOperationImpl::SetPWGRasterConverterForTesting(
 811     scoped_ptr<PWGRasterConverter> pwg_raster_converter) {
 812   pwg_raster_converter_ = pwg_raster_converter.Pass();
 813 }
 814
 815 PrivetHTTPClientImpl::PrivetHTTPClientImpl(
 816     const std::string& name,
 817     const net::HostPortPair& host_port,
 818     net::URLRequestContextGetter* request_context)
 819     : name_(name), request_context_(request_context), host_port_(host_port) {}
 820
 821 PrivetHTTPClientImpl::~PrivetHTTPClientImpl() {
 822 }
 823
 824 scoped_ptr<PrivetRegisterOperation>
 825 PrivetHTTPClientImpl::CreateRegisterOperation(
 826     const std::string& user,
 827     PrivetRegisterOperation::Delegate* delegate) {
 828   return scoped_ptr<PrivetRegisterOperation>(
 829       new PrivetRegisterOperationImpl(this, user, delegate));
 830 }
 831
 832 scoped_ptr<PrivetJSONOperation> PrivetHTTPClientImpl::CreateInfoOperation(
 833     const PrivetJSONOperation::ResultCallback& callback) {
 834   return scoped_ptr<PrivetJSONOperation>(
 835       new PrivetInfoOperationImpl(this, callback));
 836 }
 837
 838 scoped_ptr<PrivetJSONOperation>
 839 PrivetHTTPClientImpl::CreateCapabilitiesOperation(
 840     const PrivetJSONOperation::ResultCallback& callback) {
 841   return scoped_ptr<PrivetJSONOperation>(
 842       new PrivetJSONOperationImpl(this, kPrivetCapabilitiesPath, "", callback));
 843 }
 844
 845 scoped_ptr<PrivetLocalPrintOperation>
 846 PrivetHTTPClientImpl::CreateLocalPrintOperation(
 847     PrivetLocalPrintOperation::Delegate* delegate) {
 848   return scoped_ptr<PrivetLocalPrintOperation>(
 849       new PrivetLocalPrintOperationImpl(this, delegate));
 850 }
 851
 852 scoped_ptr<PrivetJSONOperation>
 853 PrivetHTTPClientImpl::CreateStorageListOperation(
 854       const std::string& path,
 855       const PrivetJSONOperation::ResultCallback& callback) {
 856   std::string url_param = base::StringPrintf(kPrivetStorageParamPathFormat,
 857                                             path.c_str());
 858   return scoped_ptr<PrivetJSONOperation>(
 859       new PrivetJSONOperationImpl(this, kPrivetStorageListPath, url_param,
 860                                   callback));
 861 }
 862
 863
 864 scoped_ptr<PrivetDataReadOperation>
 865 PrivetHTTPClientImpl::CreateStorageReadOperation(
 866     const std::string& path,
 867     const PrivetDataReadOperation::ResultCallback& callback) {
 868   std::string url_param = base::StringPrintf(kPrivetStorageParamPathFormat,
 869                                              path.c_str());
 870   return scoped_ptr<PrivetDataReadOperation>(
 871       new PrivetDataReadOperationImpl(this, kPrivetStorageContentPath,
 872                                       url_param, callback));
 873 }
 874
 875 const std::string& PrivetHTTPClientImpl::GetName() {
 876   return name_;
 877 }
 878
 879 scoped_ptr<PrivetURLFetcher> PrivetHTTPClientImpl::CreateURLFetcher(
 880     const GURL& url, net::URLFetcher::RequestType request_type,
 881     PrivetURLFetcher::Delegate* delegate) const {
 882   GURL::Replacements replacements;
 883   replacements.SetHostStr(host_port_.host());
 884   std::string port(base::IntToString(host_port_.port()));  // Keep string alive.
 885   replacements.SetPortStr(port);
 886   return scoped_ptr<PrivetURLFetcher>(
 887       new PrivetURLFetcher(url.ReplaceComponents(replacements),
 888                            request_type,
 889                            request_context_.get(),
 890                            delegate));
 891 }
 892
 893 void PrivetHTTPClientImpl::RefreshPrivetToken(
 894     const PrivetURLFetcher::TokenCallback& callback) {
 895   token_callbacks_.push_back(callback);
 896
 897   if (!info_operation_) {
 898     info_operation_ = CreateInfoOperation(
 899         base::Bind(&PrivetHTTPClientImpl::OnPrivetInfoDone,
 900                    base::Unretained(this)));
 901     info_operation_->Start();
 902   }
 903 }
 904
 905 void PrivetHTTPClientImpl::OnPrivetInfoDone(
 906     const base::DictionaryValue* value) {
 907   info_operation_.reset();
 908   std::string token;
 909
 910   // If this does not succeed, token will be empty, and an empty string
 911   // is our sentinel value, since empty X-Privet-Tokens are not allowed.
 912   if (value) {
 913     value->GetString(kPrivetInfoKeyToken, &token);
 914   }
 915
 916   TokenCallbackVector token_callbacks;
 917   token_callbacks_.swap(token_callbacks);
 918
 919   for (TokenCallbackVector::iterator i = token_callbacks.begin();
 920        i != token_callbacks.end(); i++) {
 921     i->Run(token);
 922   }
 923 }
 924
 925 }  // namespace local_discovery