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| 1 | <?php |
| 2 | |
| 3 | namespace WebPConvert\Convert\Converters\ConverterTraits; |
| 4 | |
| 5 | use WebPConvert\Convert\Exceptions\ConversionFailed\ConverterNotOperational\SystemRequirementsNotMetException; |
| 6 | use WebPConvert\Convert\Converters\AbstractConverter; |
| 7 | |
| 8 | /** |
| 9 | * Trait for converters that works by uploading to a cloud service. |
| 10 | * |
| 11 | * The trait adds a method for checking against upload limits. |
| 12 | * |
| 13 | * @package WebPConvert |
| 14 | * @author Bjørn Rosell <it@rosell.dk> |
| 15 | * @since Class available since Release 2.0.0 |
| 16 | */ |
| 17 | trait CurlTrait |
| 18 | { |
| 19 | |
| 20 | /** |
| 21 | * Check basis operationality for converters relying on curl. |
| 22 | * |
| 23 | * Performs the same as ::checkOperationality(). It is here so converters that overrides the |
| 24 | * ::checkOperationality() still has a chance to do the checks. |
| 25 | * |
| 26 | * @throws SystemRequirementsNotMetException |
| 27 | * @return void |
| 28 | */ |
| 29 | public function checkOperationalityForCurlTrait() |
| 30 | { |
| 31 | if (!extension_loaded('curl')) { |
| 32 | throw new SystemRequirementsNotMetException('Required cURL extension is not available.'); |
| 33 | } |
| 34 | |
| 35 | if (!function_exists('curl_init')) { |
| 36 | throw new SystemRequirementsNotMetException('Required url_init() function is not available.'); |
| 37 | } |
| 38 | |
| 39 | if (!function_exists('curl_file_create')) { |
| 40 | throw new SystemRequirementsNotMetException( |
| 41 | 'Required curl_file_create() function is not available (requires PHP > 5.5).' |
| 42 | ); |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | /** |
| 47 | * Check basis operationality for converters relying on curl |
| 48 | * |
| 49 | * @throws SystemRequirementsNotMetException |
| 50 | * @return void |
| 51 | */ |
| 52 | public function checkOperationality() |
| 53 | { |
| 54 | $this->checkOperationalityForCurlTrait(); |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Init curl. |
| 59 | * |
| 60 | * @throws SystemRequirementsNotMetException if curl could not be initialized |
| 61 | * @return resource|\CurlHandle curl handle (from PHP8: CurlHandle) |
| 62 | */ |
| 63 | protected static function initCurl() |
| 64 | { |
| 65 | // Get curl handle |
| 66 | $ch = \curl_init(); |
| 67 | |
| 68 | if (defined('CURLOPT_PROTOCOLS_STR')) { |
| 69 | curl_setopt($ch, CURLOPT_PROTOCOLS_STR, 'http,https'); |
| 70 | curl_setopt($ch, CURLOPT_REDIR_PROTOCOLS_STR, 'http,https'); |
| 71 | } else { |
| 72 | curl_setopt($ch, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS); |
| 73 | curl_setopt($ch, CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS); |
| 74 | } |
| 75 | if ($ch === false) { |
| 76 | throw new SystemRequirementsNotMetException('Could not initialise cURL.'); |
| 77 | } |
| 78 | return $ch; |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Close curl. |
| 83 | * |
| 84 | * Before PHP 8.0, we need to call curl_close |
| 85 | * After PHP 8.0, PHP is smart enough to destroy the object by itself |
| 86 | * |
| 87 | * @param resource $curlHandle |
| 88 | */ |
| 89 | protected static function closeCurl($curlHandle) |
| 90 | { |
| 91 | if (PHP_VERSION_ID < 80000) { |
| 92 | curl_close($curlHandle); |
| 93 | } |
| 94 | } |
| 95 | } |