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| 1 | <?php |
| 2 | |
| 3 | namespace WebPConvert\Convert\Converters; |
| 4 | |
| 5 | use WebPConvert\Convert\Converters\AbstractConverter; |
| 6 | use WebPConvert\Convert\Converters\ConverterTraits\CloudConverterTrait; |
| 7 | use WebPConvert\Convert\Converters\ConverterTraits\CurlTrait; |
| 8 | use WebPConvert\Convert\Exceptions\ConversionFailedException; |
| 9 | use WebPConvert\Convert\Exceptions\ConversionFailed\ConverterNotOperationalException; |
| 10 | use WebPConvert\Convert\Exceptions\ConversionFailed\ConverterNotOperational\InvalidApiKeyException; |
| 11 | use WebPConvert\Convert\Exceptions\ConversionFailed\ConverterNotOperational\SystemRequirementsNotMetException; |
| 12 | use WebPConvert\Options\BooleanOption; |
| 13 | use WebPConvert\Options\SensitiveStringOption; |
| 14 | use WebPConvert\Options\OptionFactory; |
| 15 | |
| 16 | /** |
| 17 | * Convert images to webp using ewww cloud service. |
| 18 | * |
| 19 | * @package WebPConvert |
| 20 | * @author Bjørn Rosell <it@rosell.dk> |
| 21 | * @since Class available since Release 2.0.0 |
| 22 | */ |
| 23 | class Ewww extends AbstractConverter |
| 24 | { |
| 25 | use CloudConverterTrait; |
| 26 | use CurlTrait; |
| 27 | |
| 28 | /** @var array|null Array of invalid or exceeded api keys discovered during conversions (during the request) */ |
| 29 | public static $nonFunctionalApiKeysDiscoveredDuringConversion; |
| 30 | |
| 31 | public function getUniqueOptions($imageType) |
| 32 | { |
| 33 | return OptionFactory::createOptions([ |
| 34 | ['api-key', 'string', [ |
| 35 | 'title' => 'Ewww API key', |
| 36 | 'description' => 'ewww API key. ' . |
| 37 | 'If you choose "auto", webp-convert will ' . |
| 38 | 'convert to both lossy and lossless and pick the smallest result', |
| 39 | 'default' => '', |
| 40 | 'sensitive' => true, |
| 41 | 'ui' => [ |
| 42 | 'component' => 'password', |
| 43 | ] |
| 44 | ]], |
| 45 | ['check-key-status-before-converting', 'boolean', [ |
| 46 | 'title' => 'Check key status before converting', |
| 47 | 'description' => |
| 48 | 'If enabled, the api key will be validated (relative inexpensive) before trying ' . |
| 49 | 'to convert. For automatic conversions, you should enable it. Otherwise you run the ' . |
| 50 | 'risk that the same files will be uploaded to ewww cloud service over and over again, ' . |
| 51 | 'in case the key has expired. For manually triggered conversions, you can safely disable ' . |
| 52 | 'the option.', |
| 53 | 'default' => true, |
| 54 | 'ui' => [ |
| 55 | 'component' => 'checkbox', |
| 56 | ] |
| 57 | ]], |
| 58 | ]); |
| 59 | } |
| 60 | |
| 61 | protected function getUnsupportedDefaultOptions() |
| 62 | { |
| 63 | return [ |
| 64 | 'alpha-quality', |
| 65 | 'auto-filter', |
| 66 | 'encoding', |
| 67 | 'low-memory', |
| 68 | 'method', |
| 69 | 'near-lossless', |
| 70 | 'preset', |
| 71 | 'sharp-yuv', |
| 72 | 'size-in-percentage', |
| 73 | ]; |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Get api key from options or environment variable |
| 78 | * |
| 79 | * @return string|false api key or false if none is set |
| 80 | */ |
| 81 | private function getKey() |
| 82 | { |
| 83 | if (!empty($this->options['api-key'])) { |
| 84 | return $this->options['api-key']; |
| 85 | } |
| 86 | if (defined('WEBPCONVERT_EWWW_API_KEY')) { |
| 87 | return constant('WEBPCONVERT_EWWW_API_KEY'); |
| 88 | } |
| 89 | if (!empty(getenv('WEBPCONVERT_EWWW_API_KEY'))) { |
| 90 | return getenv('WEBPCONVERT_EWWW_API_KEY'); |
| 91 | } |
| 92 | return false; |
| 93 | } |
| 94 | |
| 95 | |
| 96 | /** |
| 97 | * Check operationality of Ewww converter. |
| 98 | * |
| 99 | * @throws SystemRequirementsNotMetException if system requirements are not met (curl) |
| 100 | * @throws ConverterNotOperationalException if key is missing or invalid, or quota has exceeded |
| 101 | */ |
| 102 | public function checkOperationality() |
| 103 | { |
| 104 | |
| 105 | $apiKey = $this->getKey(); |
| 106 | |
| 107 | if ($apiKey === false) { |
| 108 | if (isset($this->options['key'])) { |
| 109 | throw new InvalidApiKeyException( |
| 110 | 'The "key" option has been renamed to "api-key" in webp-convert 2.0. ' . |
| 111 | 'You must change the configuration accordingly.' |
| 112 | ); |
| 113 | } |
| 114 | |
| 115 | throw new InvalidApiKeyException('Missing API key.'); |
| 116 | } |
| 117 | |
| 118 | if (strlen($apiKey) < 20) { |
| 119 | throw new InvalidApiKeyException( |
| 120 | 'Api key is invalid. Api keys are supposed to be 32 characters long - ' . |
| 121 | 'the provided api key is much shorter' |
| 122 | ); |
| 123 | } |
| 124 | |
| 125 | // Check for curl requirements |
| 126 | $this->checkOperationalityForCurlTrait(); |
| 127 | |
| 128 | if ($this->options['check-key-status-before-converting']) { |
| 129 | $keyStatus = self::getKeyStatus($apiKey); |
| 130 | switch ($keyStatus) { |
| 131 | case 'great': |
| 132 | break; |
| 133 | case 'exceeded': |
| 134 | throw new ConverterNotOperationalException('Quota has exceeded'); |
| 135 | //break; |
| 136 | case 'invalid': |
| 137 | throw new InvalidApiKeyException('Api key is invalid'); |
| 138 | //break; |
| 139 | } |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | /* |
| 144 | public function checkConvertability() |
| 145 | { |
| 146 | // check upload limits |
| 147 | $this->checkConvertabilityCloudConverterTrait(); |
| 148 | } |
| 149 | */ |
| 150 | |
| 151 | // Although this method is public, do not call directly. |
| 152 | // You should rather call the static convert() function, defined in AbstractConverter, which |
| 153 | // takes care of preparing stuff before calling doConvert, and validating after. |
| 154 | protected function doActualConvert() |
| 155 | { |
| 156 | |
| 157 | $options = $this->options; |
| 158 | |
| 159 | $ch = self::initCurl(); |
| 160 | |
| 161 | //$this->logLn('api key:' . $this->getKey()); |
| 162 | |
| 163 | $postData = [ |
| 164 | 'api_key' => $this->getKey(), |
| 165 | 'webp' => '1', |
| 166 | 'file' => curl_file_create($this->source), |
| 167 | 'quality' => $this->getCalculatedQuality(), |
| 168 | 'metadata' => ($options['metadata'] == 'none' ? '0' : '1') |
| 169 | ]; |
| 170 | |
| 171 | curl_setopt_array( |
| 172 | $ch, |
| 173 | [ |
| 174 | CURLOPT_URL => "https://optimize.exactlywww.com/v2/", |
| 175 | CURLOPT_HTTPHEADER => [ |
| 176 | 'User-Agent: WebPConvert', |
| 177 | 'Accept: image/*' |
| 178 | ], |
| 179 | CURLOPT_POSTFIELDS => $postData, |
| 180 | CURLOPT_RETURNTRANSFER => true, |
| 181 | CURLOPT_HEADER => false, |
| 182 | CURLOPT_SSL_VERIFYPEER => false |
| 183 | ] |
| 184 | ); |
| 185 | |
| 186 | $response = curl_exec($ch); |
| 187 | |
| 188 | if (curl_errno($ch)) { |
| 189 | throw new ConversionFailedException(curl_error($ch)); |
| 190 | } |
| 191 | |
| 192 | // The API does not always return images. |
| 193 | // For example, it may return a message such as '{"error":"invalid","t":"exceeded"} |
| 194 | // Messages has a http content type of ie 'text/html; charset=UTF-8 |
| 195 | // Images has application/octet-stream. |
| 196 | // So verify that we got an image back. |
| 197 | $contentType = curl_getinfo($ch, CURLINFO_CONTENT_TYPE); |
| 198 | if (($contentType != 'application/octet-stream') && ($contentType != 'image/webp')) { |
| 199 | //echo curl_getinfo($ch, CURLINFO_CONTENT_TYPE); |
| 200 | self::closeCurl($ch); |
| 201 | |
| 202 | /* |
| 203 | For bogus or expired key it returns: {"error":"invalid","t":"exceeded"} |
| 204 | For exceeded key it returns: {"error":"exceeded"} |
| 205 | */ |
| 206 | $responseObj = json_decode($response); |
| 207 | if (isset($responseObj->error)) { |
| 208 | $this->logLn('We received the following error response: ' . $responseObj->error); |
| 209 | $this->logLn('Complete response: ' . json_encode($responseObj)); |
| 210 | |
| 211 | // Store the invalid key in array so it can be received once the Stack is completed |
| 212 | // (even when stack succeeds) |
| 213 | if (!isset(self::$nonFunctionalApiKeysDiscoveredDuringConversion)) { |
| 214 | self::$nonFunctionalApiKeysDiscoveredDuringConversion = []; |
| 215 | } |
| 216 | if (!in_array($options['api-key'], self::$nonFunctionalApiKeysDiscoveredDuringConversion)) { |
| 217 | self::$nonFunctionalApiKeysDiscoveredDuringConversion[] = $options['api-key']; |
| 218 | } |
| 219 | if ($responseObj->error == "invalid") { |
| 220 | throw new InvalidApiKeyException('The api key is invalid (or expired)'); |
| 221 | } else { |
| 222 | throw new InvalidApiKeyException('The quota is exceeded for the api-key'); |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | throw new ConversionFailedException( |
| 227 | 'ewww api did not return an image. It could be that the key is invalid. Response: ' |
| 228 | . $response |
| 229 | . ". Content type: " |
| 230 | . curl_getinfo($ch, CURLINFO_CONTENT_TYPE) |
| 231 | ); |
| 232 | } |
| 233 | |
| 234 | // Not sure this can happen. So just in case |
| 235 | if ($response == '') { |
| 236 | throw new ConversionFailedException('ewww api did not return anything'); |
| 237 | } |
| 238 | |
| 239 | $success = file_put_contents($this->destination, $response); |
| 240 | |
| 241 | if (!$success) { |
| 242 | throw new ConversionFailedException('Error saving file'); |
| 243 | } |
| 244 | } |
| 245 | |
| 246 | /** |
| 247 | * Keep subscription alive by optimizing a jpeg |
| 248 | * (ewww closes accounts after 6 months of inactivity - and webp conversions seems not to be counted? ) |
| 249 | */ |
| 250 | public static function keepSubscriptionAlive($source, $key) |
| 251 | { |
| 252 | try { |
| 253 | $ch = curl_init(); |
| 254 | } catch (\Exception $e) { |
| 255 | return 'curl is not installed'; |
| 256 | } |
| 257 | if ($ch === false) { |
| 258 | return 'curl could not be initialized'; |
| 259 | } |
| 260 | curl_setopt_array( |
| 261 | $ch, |
| 262 | [ |
| 263 | CURLOPT_URL => "https://optimize.exactlywww.com/v2/", |
| 264 | CURLOPT_HTTPHEADER => [ |
| 265 | 'User-Agent: WebPConvert', |
| 266 | 'Accept: image/*' |
| 267 | ], |
| 268 | CURLOPT_POSTFIELDS => [ |
| 269 | 'api_key' => $key, |
| 270 | 'webp' => '0', |
| 271 | 'file' => curl_file_create($source), |
| 272 | 'domain' => $_SERVER['HTTP_HOST'], |
| 273 | 'quality' => 60, |
| 274 | 'metadata' => 0 |
| 275 | ], |
| 276 | CURLOPT_RETURNTRANSFER => true, |
| 277 | CURLOPT_HEADER => false, |
| 278 | CURLOPT_SSL_VERIFYPEER => false |
| 279 | ] |
| 280 | ); |
| 281 | |
| 282 | $response = curl_exec($ch); |
| 283 | if (curl_errno($ch)) { |
| 284 | return 'curl error' . curl_error($ch); |
| 285 | } |
| 286 | $contentType = curl_getinfo($ch, CURLINFO_CONTENT_TYPE); |
| 287 | if (($contentType != 'application/octet-stream') && ($contentType != 'image/webp')) { |
| 288 | self::closeCurl($ch); |
| 289 | |
| 290 | /* May return this: {"error":"invalid","t":"exceeded"} */ |
| 291 | $responseObj = json_decode($response); |
| 292 | if (isset($responseObj->error)) { |
| 293 | return 'The key is invalid'; |
| 294 | } |
| 295 | |
| 296 | return 'ewww api did not return an image. It could be that the key is invalid. Response: ' . $response; |
| 297 | } |
| 298 | |
| 299 | // Not sure this can happen. So just in case |
| 300 | if ($response == '') { |
| 301 | return 'ewww api did not return anything'; |
| 302 | } |
| 303 | |
| 304 | return true; |
| 305 | } |
| 306 | |
| 307 | /* |
| 308 | public static function blacklistKey($key) |
| 309 | { |
| 310 | } |
| 311 | |
| 312 | public static function isKeyBlacklisted($key) |
| 313 | { |
| 314 | }*/ |
| 315 | |
| 316 | /** |
| 317 | * Return "great", "exceeded" or "invalid" |
| 318 | */ |
| 319 | public static function getKeyStatus($key) |
| 320 | { |
| 321 | $ch = self::initCurl(); |
| 322 | |
| 323 | curl_setopt($ch, CURLOPT_URL, "https://optimize.exactlywww.com/verify/"); |
| 324 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
| 325 | curl_setopt($ch, CURLOPT_POSTFIELDS, [ |
| 326 | 'api_key' => $key |
| 327 | ]); |
| 328 | |
| 329 | curl_setopt($ch, CURLOPT_USERAGENT, 'WebPConvert'); |
| 330 | |
| 331 | $response = curl_exec($ch); |
| 332 | // echo $response; |
| 333 | if (curl_errno($ch)) { |
| 334 | throw new \Exception(curl_error($ch)); |
| 335 | } |
| 336 | self::closeCurl($ch); |
| 337 | |
| 338 | // Possible responses: |
| 339 | // “great” = verification successful |
| 340 | // “exceeded” = indicates a valid key with no remaining image credits. |
| 341 | // an empty response indicates that the key is not valid |
| 342 | |
| 343 | if ($response == '') { |
| 344 | return 'invalid'; |
| 345 | } |
| 346 | $responseObj = json_decode($response); |
| 347 | if (isset($responseObj->error)) { |
| 348 | if (($responseObj->error == 'invalid') || ($responseObj->error == 'bye invalid')) { |
| 349 | return 'invalid'; |
| 350 | } else { |
| 351 | if ($responseObj->error == 'bye invalid') { |
| 352 | return 'invalid'; |
| 353 | } else { |
| 354 | throw new \Exception('Ewww returned unexpected error: ' . $response); |
| 355 | } |
| 356 | } |
| 357 | } |
| 358 | if (!isset($responseObj->status)) { |
| 359 | throw new \Exception('Ewww returned unexpected response to verify request: ' . $response); |
| 360 | } |
| 361 | switch ($responseObj->status) { |
| 362 | case 'great': |
| 363 | case 'exceeded': |
| 364 | return $responseObj->status; |
| 365 | } |
| 366 | throw new \Exception('Ewww returned unexpected status to verify request: "' . $responseObj->status . '"'); |
| 367 | } |
| 368 | |
| 369 | public static function isWorkingKey($key) |
| 370 | { |
| 371 | return (self::getKeyStatus($key) == 'great'); |
| 372 | } |
| 373 | |
| 374 | public static function isValidKey($key) |
| 375 | { |
| 376 | return (self::getKeyStatus($key) != 'invalid'); |
| 377 | } |
| 378 | |
| 379 | public static function getQuota($key) |
| 380 | { |
| 381 | $ch = self::initCurl(); |
| 382 | |
| 383 | curl_setopt($ch, CURLOPT_URL, "https://optimize.exactlywww.com/quota/"); |
| 384 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); |
| 385 | curl_setopt($ch, CURLOPT_POSTFIELDS, [ |
| 386 | 'api_key' => $key |
| 387 | ]); |
| 388 | curl_setopt($ch, CURLOPT_USERAGENT, 'WebPConvert'); |
| 389 | |
| 390 | $response = curl_exec($ch); |
| 391 | return $response; // ie -830 23. Seems to return empty for invalid keys |
| 392 | // or empty |
| 393 | //echo $response; |
| 394 | } |
| 395 | } |