privet_http_impl.cc revision 116680a4aac90f2aa7413d9095a592090648e557 
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/common/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
24using namespace cloud_devices::printer;
25
26namespace cloud_print {
27extern const char kContentTypeJSON[];
28}
29
30namespace local_discovery {
31
32namespace {
33const char kUrlPlaceHolder[] = "http://host/";
34const char kPrivetRegisterActionArgName[] = "action";
35const char kPrivetRegisterUserArgName[] = "user";
36
37const char kPrivetURLKeyUserName[] = "user_name";
38const char kPrivetURLKeyClientName[] = "client_name";
39const char kPrivetURLKeyJobname[] = "job_name";
40const char kPrivetURLKeyOffline[] = "offline";
41const char kPrivetURLValueOffline[] = "1";
42const char kPrivetURLValueClientName[] = "Chrome";
43
44const char kPrivetContentTypePDF[] = "application/pdf";
45const char kPrivetContentTypePWGRaster[] = "image/pwg-raster";
46const char kPrivetContentTypeAny[] = "*/*";
47
48const char kPrivetStorageListPath[] = "/privet/storage/list";
49const char kPrivetStorageContentPath[] = "/privet/storage/content";
50const char kPrivetStorageParamPathFormat[] = "path=%s";
51
52const char kPrivetKeyJobID[] = "job_id";
53
54const int kPrivetCancelationTimeoutSeconds = 3;
55
56const int kPrivetLocalPrintMaxRetries = 2;
57
58const int kPrivetLocalPrintDefaultTimeout = 5;
59
60const size_t kPrivetLocalPrintMaxJobNameLength = 64;
61
62GURL CreatePrivetURL(const std::string& path) {
63  GURL url(kUrlPlaceHolder);
64  GURL::Replacements replacements;
65  replacements.SetPathStr(path);
66  return url.ReplaceComponents(replacements);
67}
68
69GURL CreatePrivetRegisterURL(const std::string& action,
70                             const std::string& user) {
71  GURL url = CreatePrivetURL(kPrivetRegisterPath);
72  url = net::AppendQueryParameter(url, kPrivetRegisterActionArgName, action);
73  return net::AppendQueryParameter(url, kPrivetRegisterUserArgName, user);
74}
75
76GURL CreatePrivetParamURL(const std::string& path,
77                          const std::string& query_params) {
78  GURL url(kUrlPlaceHolder);
79  GURL::Replacements replacements;
80  replacements.SetPathStr(path);
81  if (!query_params.empty()) {
82    replacements.SetQueryStr(query_params);
83  }
84  return url.ReplaceComponents(replacements);
85}
86
87}  // namespace
88
89PrivetInfoOperationImpl::PrivetInfoOperationImpl(
90    PrivetHTTPClient* privet_client,
91    const PrivetJSONOperation::ResultCallback& callback)
92    : privet_client_(privet_client), callback_(callback) {
93}
94
95PrivetInfoOperationImpl::~PrivetInfoOperationImpl() {
96}
97
98void PrivetInfoOperationImpl::Start() {
99  url_fetcher_ = privet_client_->CreateURLFetcher(
100      CreatePrivetURL(kPrivetInfoPath), net::URLFetcher::GET, this);
101
102  url_fetcher_->DoNotRetryOnTransientError();
103  url_fetcher_->SendEmptyPrivetToken();
104
105  url_fetcher_->Start();
106}
107
108PrivetHTTPClient* PrivetInfoOperationImpl::GetHTTPClient() {
109  return privet_client_;
110}
111
112void PrivetInfoOperationImpl::OnError(PrivetURLFetcher* fetcher,
113                                      PrivetURLFetcher::ErrorType error) {
114  callback_.Run(NULL);
115}
116
117void PrivetInfoOperationImpl::OnParsedJson(PrivetURLFetcher* fetcher,
118                                           const base::DictionaryValue& value,
119                                           bool has_error) {
120  callback_.Run(&value);
121}
122
123PrivetRegisterOperationImpl::PrivetRegisterOperationImpl(
124    PrivetHTTPClient* privet_client,
125    const std::string& user,
126    PrivetRegisterOperation::Delegate* delegate)
127    : user_(user),
128      delegate_(delegate),
129      privet_client_(privet_client),
130      ongoing_(false) {
131}
132
133PrivetRegisterOperationImpl::~PrivetRegisterOperationImpl() {
134}
135
136void PrivetRegisterOperationImpl::Start() {
137  ongoing_ = true;
138  next_response_handler_ =
139      base::Bind(&PrivetRegisterOperationImpl::StartResponse,
140                 base::Unretained(this));
141  SendRequest(kPrivetActionStart);
142}
143
144void PrivetRegisterOperationImpl::Cancel() {
145  url_fetcher_.reset();
146
147  if (ongoing_) {
148    // Owned by the message loop.
149    Cancelation* cancelation = new Cancelation(privet_client_, user_);
150
151    base::MessageLoop::current()->PostDelayedTask(
152        FROM_HERE,
153        base::Bind(&PrivetRegisterOperationImpl::Cancelation::Cleanup,
154                   base::Owned(cancelation)),
155        base::TimeDelta::FromSeconds(kPrivetCancelationTimeoutSeconds));
156
157    ongoing_ = false;
158  }
159}
160
161void PrivetRegisterOperationImpl::CompleteRegistration() {
162  next_response_handler_ =
163      base::Bind(&PrivetRegisterOperationImpl::CompleteResponse,
164                 base::Unretained(this));
165  SendRequest(kPrivetActionComplete);
166}
167
168PrivetHTTPClient* PrivetRegisterOperationImpl::GetHTTPClient() {
169  return privet_client_;
170}
171
172void PrivetRegisterOperationImpl::OnError(PrivetURLFetcher* fetcher,
173                                          PrivetURLFetcher::ErrorType error) {
174  ongoing_ = false;
175  int visible_http_code = -1;
176  FailureReason reason = FAILURE_NETWORK;
177
178  if (error == PrivetURLFetcher::RESPONSE_CODE_ERROR) {
179    visible_http_code = fetcher->response_code();
180    reason = FAILURE_HTTP_ERROR;
181  } else if (error == PrivetURLFetcher::JSON_PARSE_ERROR) {
182    reason = FAILURE_MALFORMED_RESPONSE;
183  } else if (error == PrivetURLFetcher::TOKEN_ERROR) {
184    reason = FAILURE_TOKEN;
185  } else if (error == PrivetURLFetcher::RETRY_ERROR) {
186    reason = FAILURE_RETRY;
187  }
188
189  delegate_->OnPrivetRegisterError(this,
190                                   current_action_,
191                                   reason,
192                                   visible_http_code,
193                                   NULL);
194}
195
196void PrivetRegisterOperationImpl::OnParsedJson(
197    PrivetURLFetcher* fetcher,
198    const base::DictionaryValue& value,
199    bool has_error) {
200  if (has_error) {
201    std::string error;
202    value.GetString(kPrivetKeyError, &error);
203
204    ongoing_ = false;
205    delegate_->OnPrivetRegisterError(this,
206                                     current_action_,
207                                     FAILURE_JSON_ERROR,
208                                     fetcher->response_code(),
209                                     &value);
210    return;
211  }
212
213  // TODO(noamsml): Match the user&action with the user&action in the object,
214  // and fail if different.
215
216  next_response_handler_.Run(value);
217}
218
219void PrivetRegisterOperationImpl::OnNeedPrivetToken(
220    PrivetURLFetcher* fetcher,
221    const PrivetURLFetcher::TokenCallback& callback) {
222  privet_client_->RefreshPrivetToken(callback);
223}
224
225void PrivetRegisterOperationImpl::SendRequest(const std::string& action) {
226  current_action_ = action;
227  url_fetcher_ = privet_client_->CreateURLFetcher(
228      CreatePrivetRegisterURL(action, user_), net::URLFetcher::POST, this);
229  url_fetcher_->Start();
230}
231
232void PrivetRegisterOperationImpl::StartResponse(
233    const base::DictionaryValue& value) {
234  next_response_handler_ =
235      base::Bind(&PrivetRegisterOperationImpl::GetClaimTokenResponse,
236                 base::Unretained(this));
237
238  SendRequest(kPrivetActionGetClaimToken);
239}
240
241void PrivetRegisterOperationImpl::GetClaimTokenResponse(
242    const base::DictionaryValue& value) {
243  std::string claimUrl;
244  std::string claimToken;
245  bool got_url = value.GetString(kPrivetKeyClaimURL, &claimUrl);
246  bool got_token = value.GetString(kPrivetKeyClaimToken, &claimToken);
247  if (got_url || got_token) {
248    delegate_->OnPrivetRegisterClaimToken(this, claimToken, GURL(claimUrl));
249  } else {
250    delegate_->OnPrivetRegisterError(this,
251                                     current_action_,
252                                     FAILURE_MALFORMED_RESPONSE,
253                                     -1,
254                                     NULL);
255  }
256}
257
258void PrivetRegisterOperationImpl::CompleteResponse(
259    const base::DictionaryValue& value) {
260  std::string id;
261  value.GetString(kPrivetKeyDeviceID, &id);
262  ongoing_ = false;
263  expected_id_ = id;
264  StartInfoOperation();
265}
266
267void PrivetRegisterOperationImpl::OnPrivetInfoDone(
268    const base::DictionaryValue* value) {
269  // TODO(noamsml): Simplify error case and depracate HTTP error value in
270  // OnPrivetRegisterError.
271  if (!value) {
272    delegate_->OnPrivetRegisterError(this,
273                                     kPrivetActionNameInfo,
274                                     FAILURE_NETWORK,
275                                     -1,
276                                     NULL);
277    return;
278  }
279
280  if (!value->HasKey(kPrivetInfoKeyID)) {
281    if (value->HasKey(kPrivetKeyError)) {
282      delegate_->OnPrivetRegisterError(this,
283                                       kPrivetActionNameInfo,
284                                        FAILURE_JSON_ERROR,
285                                       -1,
286                                       value);
287    } else {
288      delegate_->OnPrivetRegisterError(this,
289                                       kPrivetActionNameInfo,
290                                       FAILURE_MALFORMED_RESPONSE,
291                                       -1,
292                                       NULL);
293    }
294    return;
295  }
296
297  std::string id;
298
299  if (!value->GetString(kPrivetInfoKeyID, &id) ||
300      id != expected_id_) {
301    delegate_->OnPrivetRegisterError(this,
302                                     kPrivetActionNameInfo,
303                                     FAILURE_MALFORMED_RESPONSE,
304                                     -1,
305                                     NULL);
306  } else {
307    delegate_->OnPrivetRegisterDone(this, id);
308  }
309}
310
311void PrivetRegisterOperationImpl::StartInfoOperation() {
312  info_operation_ = privet_client_->CreateInfoOperation(
313      base::Bind(&PrivetRegisterOperationImpl::OnPrivetInfoDone,
314                 base::Unretained(this)));
315  info_operation_->Start();
316}
317
318PrivetRegisterOperationImpl::Cancelation::Cancelation(
319    PrivetHTTPClient* privet_client,
320    const std::string& user) {
321  url_fetcher_ =
322      privet_client->CreateURLFetcher(
323          CreatePrivetRegisterURL(kPrivetActionCancel, user),
324          net::URLFetcher::POST, this);
325  url_fetcher_->DoNotRetryOnTransientError();
326  url_fetcher_->Start();
327}
328
329PrivetRegisterOperationImpl::Cancelation::~Cancelation() {
330}
331
332void PrivetRegisterOperationImpl::Cancelation::OnError(
333    PrivetURLFetcher* fetcher,
334    PrivetURLFetcher::ErrorType error) {
335}
336
337void PrivetRegisterOperationImpl::Cancelation::OnParsedJson(
338    PrivetURLFetcher* fetcher,
339    const base::DictionaryValue& value,
340    bool has_error) {
341}
342
343void PrivetRegisterOperationImpl::Cancelation::Cleanup() {
344  // Nothing needs to be done, as base::Owned will delete this object,
345  // this callback is just here to pass ownership of the Cancelation to
346  // the message loop.
347}
348
349PrivetJSONOperationImpl::PrivetJSONOperationImpl(
350    PrivetHTTPClient* privet_client,
351    const std::string& path,
352    const std::string& query_params,
353    const PrivetJSONOperation::ResultCallback& callback)
354    : privet_client_(privet_client),
355      path_(path),
356      query_params_(query_params),
357      callback_(callback) {
358}
359
360PrivetJSONOperationImpl::~PrivetJSONOperationImpl() {
361}
362
363void PrivetJSONOperationImpl::Start() {
364  url_fetcher_ = privet_client_->CreateURLFetcher(
365      CreatePrivetParamURL(path_, query_params_), net::URLFetcher::GET, this);
366  url_fetcher_->DoNotRetryOnTransientError();
367  url_fetcher_->Start();
368}
369
370PrivetHTTPClient* PrivetJSONOperationImpl::GetHTTPClient() {
371  return privet_client_;
372}
373
374void PrivetJSONOperationImpl::OnError(
375    PrivetURLFetcher* fetcher,
376    PrivetURLFetcher::ErrorType error) {
377  callback_.Run(NULL);
378}
379
380void PrivetJSONOperationImpl::OnParsedJson(PrivetURLFetcher* fetcher,
381                                           const base::DictionaryValue& value,
382                                           bool has_error) {
383  callback_.Run(&value);
384}
385
386void PrivetJSONOperationImpl::OnNeedPrivetToken(
387    PrivetURLFetcher* fetcher,
388    const PrivetURLFetcher::TokenCallback& callback) {
389  privet_client_->RefreshPrivetToken(callback);
390}
391
392PrivetDataReadOperationImpl::PrivetDataReadOperationImpl(
393    PrivetHTTPClient* privet_client,
394    const std::string& path,
395    const std::string& query_params,
396    const PrivetDataReadOperation::ResultCallback& callback)
397    : privet_client_(privet_client),
398      path_(path),
399      query_params_(query_params),
400      callback_(callback),
401      has_range_(false),
402      save_to_file_(false) {
403}
404
405PrivetDataReadOperationImpl::~PrivetDataReadOperationImpl() {
406}
407
408
409void PrivetDataReadOperationImpl::Start() {
410  url_fetcher_ = privet_client_->CreateURLFetcher(
411      CreatePrivetParamURL(path_, query_params_), net::URLFetcher::GET, this);
412  url_fetcher_->DoNotRetryOnTransientError();
413
414  if (has_range_) {
415    url_fetcher_->SetByteRange(range_start_, range_end_);
416  }
417
418  if (save_to_file_) {
419    url_fetcher_->SaveResponseToFile();
420  }
421
422  url_fetcher_->Start();
423}
424
425void PrivetDataReadOperationImpl::SetDataRange(int range_start, int range_end) {
426  has_range_ = true;
427  range_start_ = range_start;
428  range_end_ = range_end;
429}
430
431void PrivetDataReadOperationImpl::SaveDataToFile() {
432  save_to_file_ = false;
433}
434
435PrivetHTTPClient* PrivetDataReadOperationImpl::GetHTTPClient() {
436  return privet_client_;
437}
438
439void PrivetDataReadOperationImpl::OnError(
440    PrivetURLFetcher* fetcher,
441    PrivetURLFetcher::ErrorType error) {
442  callback_.Run(RESPONSE_TYPE_ERROR, std::string(), base::FilePath());
443}
444
445void PrivetDataReadOperationImpl::OnParsedJson(
446    PrivetURLFetcher* fetcher,
447    const base::DictionaryValue& value,
448    bool has_error) {
449  NOTREACHED();
450}
451
452void PrivetDataReadOperationImpl::OnNeedPrivetToken(
453    PrivetURLFetcher* fetcher,
454    const PrivetURLFetcher::TokenCallback& callback) {
455  privet_client_->RefreshPrivetToken(callback);
456}
457
458bool PrivetDataReadOperationImpl::OnRawData(PrivetURLFetcher* fetcher,
459                                            bool is_file,
460                                            const std::string& data_str,
461                                            const base::FilePath& file_path) {
462  ResponseType type = (is_file) ? RESPONSE_TYPE_FILE : RESPONSE_TYPE_STRING;
463  callback_.Run(type, data_str, file_path);
464  return true;
465}
466
467PrivetLocalPrintOperationImpl::PrivetLocalPrintOperationImpl(
468    PrivetHTTPClient* privet_client,
469    PrivetLocalPrintOperation::Delegate* delegate)
470    : privet_client_(privet_client),
471      delegate_(delegate),
472      use_pdf_(false),
473      has_extended_workflow_(false),
474      started_(false),
475      offline_(false),
476      dpi_(printing::kDefaultPdfDpi),
477      invalid_job_retries_(0),
478      weak_factory_(this) {
479}
480
481PrivetLocalPrintOperationImpl::~PrivetLocalPrintOperationImpl() {
482}
483
484void PrivetLocalPrintOperationImpl::Start() {
485  DCHECK(!started_);
486
487  // We need to get the /info response so we can know which APIs are available.
488  // TODO(noamsml): Use cached info when available.
489  info_operation_ = privet_client_->CreateInfoOperation(
490      base::Bind(&PrivetLocalPrintOperationImpl::OnPrivetInfoDone,
491                 base::Unretained(this)));
492  info_operation_->Start();
493
494  started_ = true;
495}
496
497void PrivetLocalPrintOperationImpl::OnPrivetInfoDone(
498    const base::DictionaryValue* value) {
499  if (value && !value->HasKey(kPrivetKeyError)) {
500    has_extended_workflow_ = false;
501    bool has_printing = false;
502
503    const base::ListValue* api_list;
504    if (value->GetList(kPrivetInfoKeyAPIList, &api_list)) {
505      for (size_t i = 0; i < api_list->GetSize(); i++) {
506        std::string api;
507        api_list->GetString(i, &api);
508        if (api == kPrivetSubmitdocPath) {
509          has_printing = true;
510        } else if (api == kPrivetCreatejobPath) {
511          has_extended_workflow_ = true;
512        }
513      }
514    }
515
516    if (!has_printing) {
517      delegate_->OnPrivetPrintingError(this, -1);
518      return;
519    }
520
521    StartInitialRequest();
522  } else {
523    delegate_->OnPrivetPrintingError(this, -1);
524  }
525}
526
527void PrivetLocalPrintOperationImpl::StartInitialRequest() {
528  use_pdf_ = false;
529  ContentTypesCapability content_types;
530  if (content_types.LoadFrom(capabilities_)) {
531    use_pdf_ = content_types.Contains(kPrivetContentTypePDF) ||
532               content_types.Contains(kPrivetContentTypeAny);
533  }
534
535  if (use_pdf_) {
536    StartPrinting();
537  } else {
538    DpiCapability dpis;
539    if (dpis.LoadFrom(capabilities_)) {
540      dpi_ = std::max(dpis.GetDefault().horizontal, dpis.GetDefault().vertical);
541    }
542    StartConvertToPWG();
543  }
544}
545
546void PrivetLocalPrintOperationImpl::DoCreatejob() {
547  current_response_ = base::Bind(
548      &PrivetLocalPrintOperationImpl::OnCreatejobResponse,
549      base::Unretained(this));
550
551  url_fetcher_= privet_client_->CreateURLFetcher(
552      CreatePrivetURL(kPrivetCreatejobPath), net::URLFetcher::POST, this);
553  url_fetcher_->SetUploadData(cloud_print::kContentTypeJSON,
554                              ticket_.ToString());
555
556  url_fetcher_->Start();
557}
558
559void PrivetLocalPrintOperationImpl::DoSubmitdoc() {
560  current_response_ = base::Bind(
561      &PrivetLocalPrintOperationImpl::OnSubmitdocResponse,
562      base::Unretained(this));
563
564  GURL url = CreatePrivetURL(kPrivetSubmitdocPath);
565
566  url = net::AppendQueryParameter(url,
567                                  kPrivetURLKeyClientName,
568                                  kPrivetURLValueClientName);
569
570  if (!user_.empty()) {
571    url = net::AppendQueryParameter(url,
572                                    kPrivetURLKeyUserName,
573                                    user_);
574  }
575
576  base::string16 shortened_jobname;
577
578  gfx::ElideString(base::UTF8ToUTF16(jobname_),
579                   kPrivetLocalPrintMaxJobNameLength,
580                   &shortened_jobname);
581
582  if (!jobname_.empty()) {
583    url = net::AppendQueryParameter(
584        url, kPrivetURLKeyJobname, base::UTF16ToUTF8(shortened_jobname));
585  }
586
587  if (!jobid_.empty()) {
588    url = net::AppendQueryParameter(url,
589                                    kPrivetKeyJobID,
590                                    jobid_);
591  }
592
593  if (offline_) {
594    url = net::AppendQueryParameter(url,
595                                    kPrivetURLKeyOffline,
596                                    kPrivetURLValueOffline);
597  }
598
599  url_fetcher_= privet_client_->CreateURLFetcher(
600      url, net::URLFetcher::POST, this);
601
602  if (!use_pdf_) {
603    url_fetcher_->SetUploadFilePath(kPrivetContentTypePWGRaster,
604                                    pwg_file_path_);
605  } else {
606    // TODO(noamsml): Move to file-based upload data?
607    std::string data_str((const char*)data_->front(), data_->size());
608    url_fetcher_->SetUploadData(kPrivetContentTypePDF, data_str);
609  }
610
611  url_fetcher_->Start();
612}
613
614void PrivetLocalPrintOperationImpl::StartPrinting() {
615  if (has_extended_workflow_ && jobid_.empty()) {
616    DoCreatejob();
617  } else {
618    DoSubmitdoc();
619  }
620}
621
622void PrivetLocalPrintOperationImpl::FillPwgRasterSettings(
623    printing::PwgRasterSettings* transform_settings) {
624  PwgRasterConfigCapability raster_capability;
625  // If the raster capability fails to load, raster_capability will contain
626  // the default value.
627  raster_capability.LoadFrom(capabilities_);
628
629  DuplexTicketItem duplex_item;
630  DuplexType duplex_value = NO_DUPLEX;
631
632  DocumentSheetBack document_sheet_back =
633      raster_capability.value().document_sheet_back;
634
635  if (duplex_item.LoadFrom(ticket_)) {
636    duplex_value = duplex_item.value();
637  }
638
639  transform_settings->odd_page_transform = printing::TRANSFORM_NORMAL;
640  switch (duplex_value) {
641    case NO_DUPLEX:
642      transform_settings->odd_page_transform = printing::TRANSFORM_NORMAL;
643      break;
644    case LONG_EDGE:
645      if (document_sheet_back == ROTATED) {
646        transform_settings->odd_page_transform = printing::TRANSFORM_ROTATE_180;
647      } else if (document_sheet_back == FLIPPED) {
648        transform_settings->odd_page_transform =
649            printing::TRANSFORM_FLIP_VERTICAL;
650      }
651      break;
652    case SHORT_EDGE:
653      if (document_sheet_back == MANUAL_TUMBLE) {
654        transform_settings->odd_page_transform = printing::TRANSFORM_ROTATE_180;
655      } else if (document_sheet_back == FLIPPED) {
656        transform_settings->odd_page_transform =
657            printing::TRANSFORM_FLIP_HORIZONTAL;
658      }
659  }
660
661  transform_settings->rotate_all_pages =
662      raster_capability.value().rotate_all_pages;
663
664  transform_settings->reverse_page_order =
665      raster_capability.value().reverse_order_streaming;
666}
667
668void PrivetLocalPrintOperationImpl::StartConvertToPWG() {
669  printing::PwgRasterSettings transform_settings;
670
671  FillPwgRasterSettings(&transform_settings);
672
673  if (!pwg_raster_converter_)
674    pwg_raster_converter_ = PWGRasterConverter::CreateDefault();
675
676  double scale = dpi_;
677  scale /= printing::kPointsPerInch;
678  // Make vertical rectangle to optimize streaming to printer. Fix orientation
679  // by autorotate.
680  gfx::Rect area(std::min(page_size_.width(), page_size_.height()) * scale,
681                 std::max(page_size_.width(), page_size_.height()) * scale);
682  pwg_raster_converter_->Start(
683      data_,
684      printing::PdfRenderSettings(area, dpi_, true),
685      transform_settings,
686      base::Bind(&PrivetLocalPrintOperationImpl::OnPWGRasterConverted,
687                 base::Unretained(this)));
688}
689
690void PrivetLocalPrintOperationImpl::OnSubmitdocResponse(
691    bool has_error,
692    const base::DictionaryValue* value) {
693  std::string error;
694  // This error is only relevant in the case of extended workflow:
695  // If the print job ID is invalid, retry createjob and submitdoc,
696  // rather than simply retrying the current request.
697  if (has_error && value->GetString(kPrivetKeyError, &error)) {
698    if (has_extended_workflow_ &&
699        error == kPrivetErrorInvalidPrintJob &&
700        invalid_job_retries_ < kPrivetLocalPrintMaxRetries) {
701      invalid_job_retries_++;
702
703      int timeout = kPrivetLocalPrintDefaultTimeout;
704      value->GetInteger(kPrivetKeyTimeout, &timeout);
705
706      double random_scaling_factor =
707          1 + base::RandDouble() * kPrivetMaximumTimeRandomAddition;
708
709      timeout = static_cast<int>(timeout * random_scaling_factor);
710
711      timeout = std::max(timeout, kPrivetMinimumTimeout);
712
713      base::MessageLoop::current()->PostDelayedTask(
714          FROM_HERE, base::Bind(&PrivetLocalPrintOperationImpl::DoCreatejob,
715                                weak_factory_.GetWeakPtr()),
716          base::TimeDelta::FromSeconds(timeout));
717    } else if (use_pdf_ && error == kPrivetErrorInvalidDocumentType) {
718      use_pdf_ = false;
719      StartConvertToPWG();
720    } else {
721      delegate_->OnPrivetPrintingError(this, 200);
722    }
723
724    return;
725  }
726
727  // If we've gotten this far, there are no errors, so we've effectively
728  // succeeded.
729  delegate_->OnPrivetPrintingDone(this);
730}
731
732void PrivetLocalPrintOperationImpl::OnCreatejobResponse(
733    bool has_error,
734    const base::DictionaryValue* value) {
735  if (has_error) {
736    delegate_->OnPrivetPrintingError(this, 200);
737    return;
738  }
739
740  // Try to get job ID from value. If not, jobid_ will be empty and we will use
741  // simple printing.
742  value->GetString(kPrivetKeyJobID, &jobid_);
743
744  DoSubmitdoc();
745}
746
747void PrivetLocalPrintOperationImpl::OnPWGRasterConverted(
748    bool success,
749    const base::FilePath& pwg_file_path) {
750  if (!success) {
751    delegate_->OnPrivetPrintingError(this, -1);
752    return;
753  }
754
755  DCHECK(!pwg_file_path.empty());
756
757  pwg_file_path_ = pwg_file_path;
758  StartPrinting();
759}
760
761PrivetHTTPClient* PrivetLocalPrintOperationImpl::GetHTTPClient() {
762  return privet_client_;
763}
764
765void PrivetLocalPrintOperationImpl::OnError(
766    PrivetURLFetcher* fetcher,
767    PrivetURLFetcher::ErrorType error) {
768  delegate_->OnPrivetPrintingError(this, -1);
769}
770
771void PrivetLocalPrintOperationImpl::OnParsedJson(
772    PrivetURLFetcher* fetcher,
773    const base::DictionaryValue& value,
774    bool has_error) {
775  DCHECK(!current_response_.is_null());
776  current_response_.Run(has_error, &value);
777}
778
779void PrivetLocalPrintOperationImpl::OnNeedPrivetToken(
780    PrivetURLFetcher* fetcher,
781    const PrivetURLFetcher::TokenCallback& callback) {
782  privet_client_->RefreshPrivetToken(callback);
783}
784
785void PrivetLocalPrintOperationImpl::SetData(base::RefCountedBytes* data) {
786  DCHECK(!started_);
787  data_ = data;
788}
789
790void PrivetLocalPrintOperationImpl::SetTicket(const std::string& ticket) {
791  DCHECK(!started_);
792  ticket_.InitFromString(ticket);
793}
794
795void PrivetLocalPrintOperationImpl::SetCapabilities(
796    const std::string& capabilities) {
797  DCHECK(!started_);
798  capabilities_.InitFromString(capabilities);
799}
800
801void PrivetLocalPrintOperationImpl::SetUsername(const std::string& user) {
802  DCHECK(!started_);
803  user_= user;
804}
805
806void PrivetLocalPrintOperationImpl::SetJobname(const std::string& jobname) {
807  DCHECK(!started_);
808  jobname_ = jobname;
809}
810
811void PrivetLocalPrintOperationImpl::SetOffline(bool offline) {
812  DCHECK(!started_);
813  offline_ = offline;
814}
815
816void PrivetLocalPrintOperationImpl::SetPageSize(const gfx::Size& page_size) {
817  DCHECK(!started_);
818  page_size_ = page_size;
819}
820
821void PrivetLocalPrintOperationImpl::SetPWGRasterConverterForTesting(
822    scoped_ptr<PWGRasterConverter> pwg_raster_converter) {
823  pwg_raster_converter_ = pwg_raster_converter.Pass();
824}
825
826PrivetHTTPClientImpl::PrivetHTTPClientImpl(
827    const std::string& name,
828    const net::HostPortPair& host_port,
829    net::URLRequestContextGetter* request_context)
830    : name_(name), request_context_(request_context), host_port_(host_port) {}
831
832PrivetHTTPClientImpl::~PrivetHTTPClientImpl() {
833}
834
835const std::string& PrivetHTTPClientImpl::GetName() {
836  return name_;
837}
838
839scoped_ptr<PrivetJSONOperation> PrivetHTTPClientImpl::CreateInfoOperation(
840    const PrivetJSONOperation::ResultCallback& callback) {
841  return scoped_ptr<PrivetJSONOperation>(
842      new PrivetInfoOperationImpl(this, callback));
843}
844
845scoped_ptr<PrivetURLFetcher> PrivetHTTPClientImpl::CreateURLFetcher(
846    const GURL& url,
847    net::URLFetcher::RequestType request_type,
848    PrivetURLFetcher::Delegate* delegate) {
849  GURL::Replacements replacements;
850  replacements.SetHostStr(host_port_.host());
851  std::string port(base::IntToString(host_port_.port()));  // Keep string alive.
852  replacements.SetPortStr(port);
853  return scoped_ptr<PrivetURLFetcher>(
854      new PrivetURLFetcher(url.ReplaceComponents(replacements),
855                           request_type,
856                           request_context_.get(),
857                           delegate));
858}
859
860void PrivetHTTPClientImpl::RefreshPrivetToken(
861    const PrivetURLFetcher::TokenCallback& callback) {
862  token_callbacks_.push_back(callback);
863
864  if (!info_operation_) {
865    info_operation_ = CreateInfoOperation(
866        base::Bind(&PrivetHTTPClientImpl::OnPrivetInfoDone,
867                   base::Unretained(this)));
868    info_operation_->Start();
869  }
870}
871
872void PrivetHTTPClientImpl::OnPrivetInfoDone(
873    const base::DictionaryValue* value) {
874  info_operation_.reset();
875  std::string token;
876
877  // If this does not succeed, token will be empty, and an empty string
878  // is our sentinel value, since empty X-Privet-Tokens are not allowed.
879  if (value) {
880    value->GetString(kPrivetInfoKeyToken, &token);
881  }
882
883  TokenCallbackVector token_callbacks;
884  token_callbacks_.swap(token_callbacks);
885
886  for (TokenCallbackVector::iterator i = token_callbacks.begin();
887       i != token_callbacks.end(); i++) {
888    i->Run(token);
889  }
890}
891
892PrivetV1HTTPClientImpl::PrivetV1HTTPClientImpl(
893    scoped_ptr<PrivetHTTPClient> info_client)
894    : info_client_(info_client.Pass()) {
895}
896
897PrivetV1HTTPClientImpl::~PrivetV1HTTPClientImpl() {
898}
899
900const std::string& PrivetV1HTTPClientImpl::GetName() {
901  return info_client()->GetName();
902}
903
904scoped_ptr<PrivetJSONOperation> PrivetV1HTTPClientImpl::CreateInfoOperation(
905    const PrivetJSONOperation::ResultCallback& callback) {
906  return info_client()->CreateInfoOperation(callback);
907}
908
909scoped_ptr<PrivetRegisterOperation>
910PrivetV1HTTPClientImpl::CreateRegisterOperation(
911    const std::string& user,
912    PrivetRegisterOperation::Delegate* delegate) {
913  return scoped_ptr<PrivetRegisterOperation>(
914      new PrivetRegisterOperationImpl(info_client(), user, delegate));
915}
916
917scoped_ptr<PrivetJSONOperation>
918PrivetV1HTTPClientImpl::CreateCapabilitiesOperation(
919    const PrivetJSONOperation::ResultCallback& callback) {
920  return scoped_ptr<PrivetJSONOperation>(new PrivetJSONOperationImpl(
921      info_client(), kPrivetCapabilitiesPath, "", callback));
922}
923
924scoped_ptr<PrivetLocalPrintOperation>
925PrivetV1HTTPClientImpl::CreateLocalPrintOperation(
926    PrivetLocalPrintOperation::Delegate* delegate) {
927  return scoped_ptr<PrivetLocalPrintOperation>(
928      new PrivetLocalPrintOperationImpl(info_client(), delegate));
929}
930
931scoped_ptr<PrivetJSONOperation>
932PrivetV1HTTPClientImpl::CreateStorageListOperation(
933    const std::string& path,
934    const PrivetJSONOperation::ResultCallback& callback) {
935  std::string url_param =
936      base::StringPrintf(kPrivetStorageParamPathFormat, path.c_str());
937  return scoped_ptr<PrivetJSONOperation>(new PrivetJSONOperationImpl(
938      info_client(), kPrivetStorageListPath, url_param, callback));
939}
940
941scoped_ptr<PrivetDataReadOperation>
942PrivetV1HTTPClientImpl::CreateStorageReadOperation(
943    const std::string& path,
944    const PrivetDataReadOperation::ResultCallback& callback) {
945  std::string url_param =
946      base::StringPrintf(kPrivetStorageParamPathFormat, path.c_str());
947  return scoped_ptr<PrivetDataReadOperation>(new PrivetDataReadOperationImpl(
948      info_client(), kPrivetStorageContentPath, url_param, callback));
949}
950
951}  // namespace local_discovery
952