BackupGuardStorage.php
5 years ago
SGDropbox.php
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SGDropboxStorage.php
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SGStorage.php
5 years ago
BackupGuardStorage.php
374 lines
| 1 | <?php |
| 2 | namespace BackupGuard; |
| 3 | |
| 4 | use \SGConfig; |
| 5 | use \SGExceptionForbidden; |
| 6 | require_once(SG_STORAGE_PATH.'SGStorage.php'); |
| 7 | require_once(SG_LIB_PATH.'BackupGuard/Client.php'); |
| 8 | |
| 9 | class Storage extends \SGStorage |
| 10 | { |
| 11 | private $client = null; |
| 12 | private $accessToken = ''; |
| 13 | private $refreshToken = ''; |
| 14 | |
| 15 | public function init() |
| 16 | { |
| 17 | $this->client = new Client(); |
| 18 | $this->client->setUploadAccessToken(SGConfig::get('SG_BACKUPGUARD_UPLOAD_ACCESS_TOKEN')); |
| 19 | } |
| 20 | |
| 21 | public function setAccessToken($accessToken) |
| 22 | { |
| 23 | $this->accessToken = $accessToken; |
| 24 | } |
| 25 | |
| 26 | private function getRefreshToken() |
| 27 | { |
| 28 | return SGConfig::get('SG_BACKUPGUARD_UPLOAD_REFRESH_TOKEN', true); |
| 29 | } |
| 30 | |
| 31 | private function getProfileId() |
| 32 | { |
| 33 | return SGConfig::get("BACKUP_GUARD_PROFILE_ID"); |
| 34 | } |
| 35 | |
| 36 | private function getAccessToken(&$expirationTs = 0) |
| 37 | { |
| 38 | $expirationTs = (int)SGConfig::get('SG_BACKUPGUARD_UPLOAD_ACCESS_TOKEN_EXPIRES'); |
| 39 | return SGConfig::get('SG_BACKUPGUARD_UPLOAD_ACCESS_TOKEN'); |
| 40 | } |
| 41 | |
| 42 | public function connect() |
| 43 | { |
| 44 | if ($this->isConnected()) { |
| 45 | return; |
| 46 | } |
| 47 | |
| 48 | $args = func_get_args(); |
| 49 | if (!count($args)) { |
| 50 | throw new SGExceptionForbidden('Invalid credentials'); |
| 51 | } |
| 52 | |
| 53 | $email = $args[0]; |
| 54 | $password = $args[1]; |
| 55 | $tmp = isset($args[2])?$args[2]:false; |
| 56 | |
| 57 | if (!$email || !$password) { |
| 58 | throw new SGExceptionForbidden('Invalid credentials'); |
| 59 | } |
| 60 | |
| 61 | if ($tmp) { |
| 62 | $tokens = $this->client->createAccessToken( |
| 63 | SG_BACKUPGUARD_UPLOAD_CLIENT_ID, |
| 64 | SG_BACKUPGUARD_UPLOAD_CLIENT_SECRET, |
| 65 | $email, |
| 66 | $password |
| 67 | ); |
| 68 | } |
| 69 | else { |
| 70 | $tokens = $this->client->createUploadAccessToken( |
| 71 | SG_BACKUPGUARD_UPLOAD_CLIENT_ID, |
| 72 | SG_BACKUPGUARD_UPLOAD_CLIENT_SECRET, |
| 73 | $email, |
| 74 | $password, |
| 75 | SG_BACKUPGUARD_UPLOAD_SCOPE |
| 76 | ); |
| 77 | } |
| 78 | |
| 79 | if (empty($tokens)) { |
| 80 | throw new SGExceptionForbidden('Invalid credentials'); |
| 81 | } |
| 82 | |
| 83 | $this->setTokens( |
| 84 | $tokens['access_token'], |
| 85 | time()+Config::TOKEN_EXPIRES, |
| 86 | $tokens['refresh_token'], |
| 87 | $tmp |
| 88 | ); |
| 89 | |
| 90 | return $tokens['access_token']; |
| 91 | } |
| 92 | |
| 93 | private function setTokens($accessToken = '', $accessTokenExpires = 0, $refreshToken = '', $tmp = false) |
| 94 | { |
| 95 | $this->accessToken = $accessToken; |
| 96 | $this->refreshToken = $refreshToken; |
| 97 | |
| 98 | if (!$tmp) { |
| 99 | SGConfig::set('SG_BACKUPGUARD_UPLOAD_ACCESS_TOKEN', $accessToken); |
| 100 | SGConfig::set('SG_BACKUPGUARD_UPLOAD_ACCESS_TOKEN_EXPIRES', $accessTokenExpires); |
| 101 | SGConfig::set('SG_BACKUPGUARD_UPLOAD_REFRESH_TOKEN', $refreshToken); |
| 102 | |
| 103 | $this->client->setUploadAccessToken($accessToken); |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | public function connectOffline() |
| 108 | { |
| 109 | if ($this->isConnected()) { |
| 110 | return; |
| 111 | } |
| 112 | |
| 113 | $refreshToken = $this->getRefreshToken(); |
| 114 | |
| 115 | if (!$refreshToken) { |
| 116 | throw new \SGExceptionNotFound('Refresh token not found'); |
| 117 | } |
| 118 | |
| 119 | // refresh access token using the refresh token |
| 120 | $tokens = $this->client->refreshAccessToken(SG_BACKUPGUARD_UPLOAD_CLIENT_ID, SG_BACKUPGUARD_UPLOAD_CLIENT_SECRET, $refreshToken); |
| 121 | |
| 122 | // set the new access token |
| 123 | $this->setTokens( |
| 124 | $tokens['access_token'], |
| 125 | time()+Config::TOKEN_EXPIRES, |
| 126 | $tokens['refresh_token'] |
| 127 | ); |
| 128 | |
| 129 | $this->connected = true; |
| 130 | } |
| 131 | |
| 132 | public function checkConnected() |
| 133 | { |
| 134 | $accessToken = $this->getAccessToken($expirationTs); |
| 135 | // to avoid case where token can expire in the middle of upload |
| 136 | $this->connected = ($accessToken&&$expirationTs>=(time()+60))?true:false; |
| 137 | |
| 138 | if ($this->connected) { |
| 139 | $this->client->setUploadAccessToken(SGConfig::get('SG_BACKUPGUARD_UPLOAD_ACCESS_TOKEN')); |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | public function getListOfFiles() |
| 144 | { |
| 145 | if (!$this->isConnected()) { |
| 146 | $this->connectOffline(); |
| 147 | } |
| 148 | |
| 149 | $profileId = $this->getProfileId(); |
| 150 | |
| 151 | if ($profileId) { |
| 152 | $list = $this->client->getAllBackups($profileId); |
| 153 | return $list; |
| 154 | } |
| 155 | |
| 156 | return array(); |
| 157 | } |
| 158 | |
| 159 | public function createFolder($folderName) |
| 160 | { |
| 161 | |
| 162 | } |
| 163 | |
| 164 | public function downloadFile($filePath, $size, $backupId = null) |
| 165 | { |
| 166 | $offset = 0; |
| 167 | $result = false; |
| 168 | $chunk = 2000000; // 2MB |
| 169 | $loaclFilePath = SG_BACKUP_DIRECTORY.basename($filePath); |
| 170 | $serverFilePath = $filePath; |
| 171 | |
| 172 | $fp = @fopen($loaclFilePath, 'ab'); |
| 173 | |
| 174 | while ($size > $offset) { |
| 175 | if (!file_exists($loaclFilePath)) { |
| 176 | $result = false; |
| 177 | break; |
| 178 | } |
| 179 | |
| 180 | $data = $this->client->downloadFile($backupId, $serverFilePath, $offset, $chunk); |
| 181 | |
| 182 | if (strlen($data)) { |
| 183 | fwrite($fp, $data); |
| 184 | } |
| 185 | else { |
| 186 | break; |
| 187 | } |
| 188 | |
| 189 | $offset += $chunk; |
| 190 | $result = true; |
| 191 | } |
| 192 | |
| 193 | return $result; |
| 194 | } |
| 195 | |
| 196 | private function saveStateData($fileOffset, $uploadId, $backupId, $profileId) |
| 197 | { |
| 198 | $token = $this->delegate->getToken(); |
| 199 | $actionId = $this->delegate->getActionId(); |
| 200 | $pendingStorageUploads = $this->delegate->getPendingStorageUploads(); |
| 201 | $currentUploadChunksCount = $this->delegate->getCurrentUploadChunksCount(); |
| 202 | $progress = $this->delegate->getProgress(); |
| 203 | |
| 204 | $this->state->setCurrentUploadChunksCount($currentUploadChunksCount); |
| 205 | $this->state->setStorageType(SG_STORAGE_BACKUP_GUARD); |
| 206 | $this->state->setPendingStorageUploads($pendingStorageUploads); |
| 207 | $this->state->setToken($token); |
| 208 | $this->state->setActionId($actionId); |
| 209 | $this->state->setAction(SG_STATE_ACTION_UPLOADING_BACKUP); |
| 210 | $this->state->setProgress($progress); |
| 211 | |
| 212 | $this->state->setOffset($fileOffset); |
| 213 | $this->state->setUploadId($uploadId); |
| 214 | $this->state->setBackupId($backupId); |
| 215 | $this->state->setProfileId($profileId); |
| 216 | |
| 217 | $this->state->save(); |
| 218 | } |
| 219 | |
| 220 | public function uploadFile($filePath) |
| 221 | { |
| 222 | if (!$this->isConnected()) { |
| 223 | throw new SGExceptionForbidden('Permission denied. Authentication required.'); |
| 224 | } |
| 225 | |
| 226 | if (!file_exists($filePath) || !is_readable($filePath)) { |
| 227 | throw new \SGExceptionNotFound('File does not exist or is not readable: '.$filePath); |
| 228 | } |
| 229 | |
| 230 | //$chunkSizeBytes = 2000000; |
| 231 | $chunkSizeBytes = (int)getCloudUploadChunkSize() * 1024 * 1024; |
| 232 | $fileSize = backupGuardRealFilesize($filePath); |
| 233 | $backupFileName = $this->state->getBackupFileName().'.sgbp'; |
| 234 | |
| 235 | $this->delegate->willStartUpload((int)ceil($fileSize/$chunkSizeBytes)); |
| 236 | |
| 237 | $handle = fopen($filePath, "rb"); |
| 238 | $byteOffset = $this->state->getOffset(); |
| 239 | fseek($handle, $byteOffset); |
| 240 | |
| 241 | if ($this->state->getAction() == SG_STATE_ACTION_PREPARING_STATE_FILE) { |
| 242 | |
| 243 | $profileId = $this->getProfileId(); |
| 244 | if ($profileId) { |
| 245 | $result = $this->client->createBackup($profileId, $backupFileName); |
| 246 | if (count($result)) { |
| 247 | $profileId = $result['profile_id']; |
| 248 | $backupId = $result['backup_id']; |
| 249 | } |
| 250 | else { |
| 251 | throw new SGExceptionForbidden('Something went wrong. Unable to create backup.'); |
| 252 | } |
| 253 | } |
| 254 | else { |
| 255 | throw new SGExceptionForbidden('Something went wrong. Unable to create profile.'); |
| 256 | } |
| 257 | |
| 258 | $data = fread($handle, $chunkSizeBytes); |
| 259 | $result = $this->client->createUploadSession($backupId, $data); |
| 260 | if (count($result)) { |
| 261 | $uploadId = $result['upload_id']; |
| 262 | $offset = $result['offset']; |
| 263 | } |
| 264 | else { |
| 265 | throw new SGExceptionForbidden('Something went wrong. Unable to start upload session.'); |
| 266 | } |
| 267 | |
| 268 | $byteOffset += strlen($data); |
| 269 | } |
| 270 | else { |
| 271 | $uploadId = $this->state->getUploadId(); |
| 272 | $backupId = $this->state->getBackupId(); |
| 273 | $profileId = $this->state->getProfileId(); |
| 274 | } |
| 275 | |
| 276 | \SGPing::update(); |
| 277 | |
| 278 | while ($byteOffset < $fileSize) { |
| 279 | $data = fread($handle, $chunkSizeBytes); |
| 280 | $result = $this->client->resumeUploadSession($backupId, $uploadId, $byteOffset, $data); |
| 281 | if (count($result)) { |
| 282 | $uploadId = $result['upload_id']; |
| 283 | $offset = $result['offset']; |
| 284 | } |
| 285 | else { |
| 286 | throw new SGExceptionForbidden('Something went wrong. Unable to start upload session.'); |
| 287 | } |
| 288 | |
| 289 | if (!$this->delegate->shouldUploadNextChunk()) { |
| 290 | fclose($handle); |
| 291 | return; |
| 292 | } |
| 293 | |
| 294 | \SGPing::update(); |
| 295 | $byteOffset += strlen($data); |
| 296 | $shouldReload = $this->shouldReload(); |
| 297 | if ($shouldReload && backupGuardIsReloadEnabled()) { |
| 298 | $this->saveStateData($byteOffset, $uploadId, $backupId, $profileId); |
| 299 | @fclose($handle); |
| 300 | $this->reload(); |
| 301 | } |
| 302 | } |
| 303 | |
| 304 | $path = $backupFileName; |
| 305 | |
| 306 | $this->client->finalizeUpload($backupId, $uploadId, $path); |
| 307 | $this->client->finalizeBackup($backupId); |
| 308 | fclose($handle); |
| 309 | } |
| 310 | |
| 311 | public function deleteFile($fileName) |
| 312 | { |
| 313 | |
| 314 | } |
| 315 | |
| 316 | public function deleteFolder($folderName) |
| 317 | { |
| 318 | |
| 319 | } |
| 320 | |
| 321 | public function fileExists($path) |
| 322 | { |
| 323 | |
| 324 | } |
| 325 | |
| 326 | public function checkCloudAccount() |
| 327 | { |
| 328 | $this->client->setAccessToken($this->accessToken); |
| 329 | $account = $this->client->checkCloudAccount(); |
| 330 | return $account; |
| 331 | } |
| 332 | |
| 333 | public function getProfiles() |
| 334 | { |
| 335 | $profiles = array(); |
| 336 | |
| 337 | try { |
| 338 | $profiles = $this->client->getProfiles(); |
| 339 | } |
| 340 | catch (UnauthorizedException $exp) { |
| 341 | $this->connected = false; |
| 342 | $this->connectOffline(); |
| 343 | $profiles = $this->getProfiles(); |
| 344 | } |
| 345 | catch (Exception $exp) { |
| 346 | $profileId = $this->createProfile(); |
| 347 | $profiles[] = array( |
| 348 | 'id' => $profileId, |
| 349 | 'name' => $profileName |
| 350 | ); |
| 351 | } |
| 352 | |
| 353 | return $profiles; |
| 354 | } |
| 355 | |
| 356 | public function createProfile($name = null) |
| 357 | { |
| 358 | $profileName = $name?$name:backupGuardGetSiteUrl(); |
| 359 | try { |
| 360 | $result = $this->client->createProfile($profileName); |
| 361 | $profileId = $result['profile_id']; |
| 362 | } |
| 363 | catch (UnauthorizedException $exp) { |
| 364 | $this->connected = false; |
| 365 | $this->connectOffline(); |
| 366 | $profileId = $this->createProfile(); |
| 367 | } |
| 368 | catch (Exception $exp) { |
| 369 | $profileId = 0; |
| 370 | } |
| 371 | |
| 372 | return $profileId; |
| 373 | } |
| 374 | } |