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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "chrome/browser/chrome_to_mobile_service.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "base/json/json_writer.h" |
| 9 #include "base/stringprintf.h" |
| 10 #include "base/utf_string_conversions.h" |
| 11 #include "base/values.h" |
| 12 #include "chrome/app/chrome_command_ids.h" |
| 13 #include "chrome/common/cloud_print/cloud_print_helpers.h" |
| 14 #include "chrome/browser/printing/cloud_print/cloud_print_url.h" |
| 15 #include "chrome/browser/profiles/profile.h" |
| 16 #include "chrome/browser/signin/token_service.h" |
| 17 #include "chrome/browser/signin/token_service_factory.h" |
| 18 #include "chrome/browser/ui/browser_list.h" |
| 19 #include "chrome/common/guid.h" |
| 20 #include "chrome/common/net/gaia/gaia_urls.h" |
| 21 #include "chrome/common/net/gaia/oauth2_access_token_fetcher.h" |
| 22 #include "content/public/browser/browser_thread.h" |
| 23 #include "content/public/common/url_fetcher.h" |
| 24 #include "net/base/escape.h" |
| 25 #include "net/url_request/url_request_context_getter.h" |
| 26 |
| 27 namespace { |
| 28 |
| 29 // The URLFetcher max number of retries. |
| 30 size_t kMaxRetries = 10; |
| 31 |
| 32 // The request retry delays in seconds. |
| 33 int kAuthRetryDelay = 30; |
| 34 int kAutoSearchRetryDelay = 300; |
| 35 |
| 36 const char kOAuth2Scope[] = "https://www.googleapis.com/auth/cloudprint"; |
| 37 const char kMobileTypeAndroidChromeSnapshot[] = "ANDROID_CHROME_SNAPSHOT"; |
| 38 |
| 39 const char kJobTypeURL[] = "url"; |
| 40 const char kJobTypeDelayedSnapshot[] = "url_with_delayed_snapshot"; |
| 41 const char kJobTypeSnapshot[] = "snapshot"; |
| 42 |
| 43 std::string GetJobString(const internal::SubmitData& data) { |
| 44 scoped_ptr<DictionaryValue> job(new DictionaryValue()); |
| 45 job->SetString("url", data.url.spec()); |
| 46 if (data.job_type == internal::URL) { |
| 47 job->SetString("type", kJobTypeURL); |
| 48 } else { |
| 49 job->SetString("snapID", data.snapshot_id); |
| 50 job->SetString("type", (data.job_type == internal::SNAPSHOT) ? |
| 51 kJobTypeSnapshot : kJobTypeDelayedSnapshot); |
| 52 } |
| 53 std::string job_string; |
| 54 base::JSONWriter::Write(job.get(), false, &job_string); |
| 55 return job_string; |
| 56 } |
| 57 |
| 58 GURL GetSubmitURL(GURL service_url, const internal::SubmitData& data) { |
| 59 GURL submit_url = cloud_print::GetUrlForSubmit(service_url); |
| 60 if (data.job_type == internal::SNAPSHOT) |
| 61 return submit_url; |
| 62 |
| 63 // Append form data to the URL's query for |URL| and |DELAYED_SNAPSHOT| jobs. |
| 64 static const bool kUsePlus = true; |
| 65 std::string tag_string = net::EscapeQueryParamValue( |
| 66 "__c2dm__job_data=" + GetJobString(data), kUsePlus); |
| 67 GURL::Replacements replacements; |
| 68 // Provide dummy content to workaround |errorCode| 412 'Document missing'. |
| 69 std::string query = StringPrintf("printerid=%s&tag=%s&title=%s" |
| 70 "&contentType=text/plain&content=dummy", |
| 71 net::EscapeQueryParamValue(UTF16ToUTF8(data.mobile_id), kUsePlus).c_str(), |
| 72 net::EscapeQueryParamValue(tag_string, kUsePlus).c_str(), |
| 73 net::EscapeQueryParamValue(UTF16ToUTF8(data.title), kUsePlus).c_str()); |
| 74 replacements.SetQueryStr(query); |
| 75 return submit_url.ReplaceComponents(replacements); |
| 76 } |
| 77 |
| 78 void DeleteFilePath(const FilePath& file_path) { |
| 79 bool success = file_util::Delete(file_path, false); |
| 80 DCHECK(success); |
| 81 } |
| 82 |
| 83 void SubmitSnapshot(content::URLFetcher* request, |
| 84 const internal::SubmitData& data) { |
| 85 std::string file; |
| 86 if (file_util::ReadFileToString(data.snapshot_path, &file) && !file.empty()) { |
| 87 std::string post_data, mime_boundary; |
| 88 cloud_print::CreateMimeBoundaryForUpload(&mime_boundary); |
| 89 cloud_print::AddMultipartValueForUpload("printerid", |
| 90 UTF16ToUTF8(data.mobile_id), mime_boundary, std::string(), &post_data); |
| 91 cloud_print::AddMultipartValueForUpload("tag", "__c2dm__job_data=" + |
| 92 GetJobString(data), mime_boundary, std::string(), &post_data); |
| 93 cloud_print::AddMultipartValueForUpload("title", UTF16ToUTF8(data.title), |
| 94 mime_boundary, std::string(), &post_data); |
| 95 cloud_print::AddMultipartValueForUpload("contentType", "multipart/related", |
| 96 mime_boundary, std::string(), &post_data); |
| 97 |
| 98 // Append the snapshot MHTML content and terminate the request body. |
| 99 post_data.append("--" + mime_boundary + "\r\n" |
| 100 "Content-Disposition: form-data; " |
| 101 "name=\"content\"; filename=\"blob\"\r\n" |
| 102 "Content-Type: text/mhtml\r\n" |
| 103 "\r\n" + file + "\r\n" "--" + mime_boundary + "--\r\n"); |
| 104 std::string content_type = "multipart/form-data; boundary=" + mime_boundary; |
| 105 request->SetUploadData(content_type, post_data); |
| 106 request->Start(); |
| 107 } |
| 108 |
| 109 content::BrowserThread::PostBlockingPoolTask(FROM_HERE, |
| 110 base::Bind(&DeleteFilePath, data.snapshot_path)); |
| 111 } |
| 112 |
| 113 } // namespace |
| 114 |
| 115 namespace internal { |
| 116 |
| 117 SubmitData::SubmitData() {} |
| 118 |
| 119 SubmitData::~SubmitData() {} |
| 120 |
| 121 } |
| 122 |
| 123 ChromeToMobileService::ChromeToMobileService(Profile* profile) |
| 124 : profile_(profile), |
| 125 cloud_print_url_(new CloudPrintURL(profile)) { |
| 126 RequestMobileListUpdate(); |
| 127 } |
| 128 |
| 129 ChromeToMobileService::~ChromeToMobileService() {} |
| 130 |
| 131 void ChromeToMobileService::OnURLFetchComplete( |
| 132 const content::URLFetcher* source) { |
| 133 if (source == search_request_.get()) |
| 134 HandleSearchResponse(); |
| 135 else |
| 136 HandleSubmitResponse(source); |
| 137 } |
| 138 |
| 139 void ChromeToMobileService::OnGetTokenSuccess( |
| 140 const std::string& access_token) { |
| 141 oauth2_request_.reset(); |
| 142 request_timer_.Stop(); |
| 143 oauth2_token_ = access_token; |
| 144 RequestSearch(); |
| 145 } |
| 146 |
| 147 void ChromeToMobileService::OnGetTokenFailure( |
| 148 const GoogleServiceAuthError& error) { |
| 149 oauth2_request_.reset(); |
| 150 request_timer_.Start(FROM_HERE, base::TimeDelta::FromSeconds(kAuthRetryDelay), |
| 151 this, &ChromeToMobileService::RequestAuth); |
| 152 } |
| 153 |
| 154 void ChromeToMobileService::RequestMobileListUpdate() { |
| 155 if (oauth2_token_.empty()) |
| 156 RequestAuth(); |
| 157 else |
| 158 RequestSearch(); |
| 159 } |
| 160 |
| 161 void ChromeToMobileService::SendToMobile(const string16& printer_id, |
| 162 const GURL& url, |
| 163 const string16& title, |
| 164 const FilePath& snapshot, |
| 165 base::WeakPtr<Observer> observer) { |
| 166 if (oauth2_token_.empty() || !url.is_valid()) |
| 167 return; |
| 168 |
| 169 bool send_snapshot = !snapshot.empty(); |
| 170 std::string id = send_snapshot ? guid::GenerateGUID() : std::string(); |
| 171 internal::SubmitData data; |
| 172 data.mobile_id = printer_id; |
| 173 data.url = url; |
| 174 data.title = title; |
| 175 data.snapshot_path = snapshot; |
| 176 data.snapshot_id = id; |
| 177 data.job_type = send_snapshot ? internal::DELAYED_SNAPSHOT : internal::URL; |
| 178 content::URLFetcher* submit_url = CreateRequest(data); |
| 179 request_observer_map_[submit_url] = observer; |
| 180 submit_url->Start(); |
| 181 if (send_snapshot) { |
| 182 data.job_type = internal::SNAPSHOT; |
| 183 content::URLFetcher* submit_snapshot = CreateRequest(data); |
| 184 request_observer_map_[submit_snapshot] = observer; |
| 185 content::BrowserThread::PostBlockingPoolTask(FROM_HERE, |
| 186 base::Bind(&SubmitSnapshot, submit_snapshot, data)); |
| 187 } |
| 188 } |
| 189 |
| 190 content::URLFetcher* ChromeToMobileService::CreateRequest( |
| 191 const internal::SubmitData& data) { |
| 192 bool get = data.job_type != internal::SNAPSHOT; |
| 193 content::URLFetcher* request = content::URLFetcher::Create( |
| 194 GetSubmitURL(cloud_print_url_->GetCloudPrintServiceURL(), data), |
| 195 get ? content::URLFetcher::GET : content::URLFetcher::POST, this); |
| 196 request->SetRequestContext(profile_->GetRequestContext()); |
| 197 request->SetMaxRetries(kMaxRetries); |
| 198 request->SetExtraRequestHeaders("Authorization: OAuth " + |
| 199 oauth2_token_ + "\r\n" + cloud_print::kChromeCloudPrintProxyHeader); |
| 200 return request; |
| 201 } |
| 202 |
| 203 void ChromeToMobileService::RequestAuth() { |
| 204 if (oauth2_request_.get() || !oauth2_token_.empty()) |
| 205 return; |
| 206 |
| 207 GURL auth_url = cloud_print::GetUrlForGetAuthCode( |
| 208 cloud_print_url_->GetCloudPrintServiceURL(), |
| 209 cloud_print::kDefaultCloudPrintOAuthClientId, |
| 210 cloud_print::GenerateProxyId()); |
| 211 oauth2_request_.reset( |
| 212 new OAuth2AccessTokenFetcher(this, profile_->GetRequestContext())); |
| 213 std::string token = TokenServiceFactory::GetForProfile(profile_)-> |
| 214 GetOAuth2LoginRefreshToken(); |
| 215 std::vector<std::string> scopes(1, kOAuth2Scope); |
| 216 oauth2_request_->Start(GaiaUrls::GetInstance()->oauth2_chrome_client_id(), |
| 217 GaiaUrls::GetInstance()->oauth2_chrome_client_secret(), token, scopes); |
| 218 } |
| 219 |
| 220 void ChromeToMobileService::RequestSearch() { |
| 221 if (search_request_.get() || oauth2_token_.empty()) |
| 222 return; |
| 223 |
| 224 GURL search_url = |
| 225 cloud_print::GetUrlForSearch(cloud_print_url_->GetCloudPrintServiceURL()); |
| 226 search_request_.reset( |
| 227 content::URLFetcher::Create(search_url, content::URLFetcher::GET, this)); |
| 228 search_request_->SetRequestContext(profile_->GetRequestContext()); |
| 229 search_request_->SetMaxRetries(kMaxRetries); |
| 230 search_request_->SetExtraRequestHeaders("Authorization: OAuth " + |
| 231 oauth2_token_ + "\r\n" + cloud_print::kChromeCloudPrintProxyHeader); |
| 232 search_request_->Start(); |
| 233 } |
| 234 |
| 235 void ChromeToMobileService::HandleSearchResponse() { |
| 236 std::string data; |
| 237 search_request_->GetResponseAsString(&data); |
| 238 search_request_.reset(); |
| 239 |
| 240 DictionaryValue* json_data = NULL; |
| 241 ListValue* list = NULL; |
| 242 cloud_print::ParseResponseJSON(data, NULL, &json_data); |
| 243 if (json_data && json_data->GetList(cloud_print::kPrinterListValue, &list)) { |
| 244 mobiles_.clear(); |
| 245 for (size_t index = 0; index < list->GetSize(); index++) { |
| 246 DictionaryValue* mobile_data = NULL; |
| 247 if (list->GetDictionary(index, &mobile_data)) { |
| 248 std::string mobile_type; |
| 249 mobile_data->GetString("type", &mobile_type); |
| 250 if (mobile_type.compare(kMobileTypeAndroidChromeSnapshot) == 0) |
| 251 mobiles_.push_back(mobile_data); |
| 252 } |
| 253 } |
| 254 } |
| 255 |
| 256 BrowserList::GetLastActiveWithProfile(profile_)->command_updater()-> |
| 257 UpdateCommandEnabled(IDC_CHROME_TO_MOBILE_PAGE, !mobiles_.empty()); |
| 258 |
| 259 if (!request_timer_.IsRunning()) |
| 260 request_timer_.Start(FROM_HERE, |
| 261 base::TimeDelta::FromSeconds(kAutoSearchRetryDelay), |
| 262 this, &ChromeToMobileService::RequestSearch); |
| 263 } |
| 264 |
| 265 void ChromeToMobileService::HandleSubmitResponse( |
| 266 const content::URLFetcher* source) { |
| 267 // Get the observer for this response; bail if there is none or it is NULL. |
| 268 RequestObserverMap::iterator i = request_observer_map_.find(source); |
| 269 if (i == request_observer_map_.end()) |
| 270 return; |
| 271 base::WeakPtr<Observer> observer = i->second; |
| 272 request_observer_map_.erase(i); |
| 273 if (!observer.get()) |
| 274 return; |
| 275 |
| 276 // Get the success value from the CloudPrint server response data. |
| 277 std::string data; |
| 278 source->GetResponseAsString(&data); |
| 279 DictionaryValue* json_data = NULL; |
| 280 cloud_print::ParseResponseJSON(data, NULL, &json_data); |
| 281 bool success = false; |
| 282 if (json_data) |
| 283 json_data->GetBoolean("success", &success); |
| 284 |
| 285 // Check if the observer is waiting on a second response (url and snapshot). |
| 286 RequestObserverMap::iterator other = request_observer_map_.begin(); |
| 287 for (; other != request_observer_map_.end(); ++other) { |
| 288 if (other->second == observer) { |
| 289 // Do not call OnSendComplete for observers waiting on a second response. |
| 290 if (success) |
| 291 return; |
| 292 |
| 293 // Ensure a second response is not sent after reporting failure below. |
| 294 request_observer_map_.erase(other); |
| 295 break; |
| 296 } |
| 297 } |
| 298 |
| 299 observer->OnSendComplete(success); |
| 300 } |
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