| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  *     _    _                    ___ ____  ____  ____ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  *    / \  | |__  _   _ ___  ___|_ _|  _ \|  _ \| __ ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  *   / _ \ | '_ \| | | / __|/ _ \| || |_) | | | |  _ \ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  *  / ___ \| |_) | |_| \__ \  __/| ||  __/| |_| | |_) | | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  * /_/   \_\_.__/ \__,_|___/\___|___|_|   |____/|____/ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  |  * This file is part of Kristuff\AbsuseIPDB. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  |  * (c) Kristuff <[email protected]> | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  * For the full copyright and license information, please view the LICENSE | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  |  * file that was distributed with this source code. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  * @version    0.9.10 | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  |  * @copyright  2020-2021 Kristuff | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | namespace Kristuff\AbuseIPDB; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | use Kristuff\Mishell\Console; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | use Kristuff\Mishell\Program; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  |  * Class ShellErrorHandler | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  |  *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  |  * Abstract base class for main cli program | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | abstract class ShellErrorHandler extends ShellUtils | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |      * Check and print errors in API response.  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  |      * @param object     $response        | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  |      * @param bool       $checkForEmpty      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  |      * @return bool      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  |     protected static function hasErrors(object $response, bool $checkForEmpty = true ) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  |         return $checkForEmpty ? self::parseErrors($response) || self::checkForEmpty($response) : self::parseErrors($response); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  |      * Check and print errors in API response.  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  |      * @param object     $response        | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  |      * @param bool       $checkForEmpty      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |      * @return bool      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  |     private static function parseErrors(object $response) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  |         if (isset($response) && isset($response->errors)){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  |             switch (self::$outputFormat){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  |                 case self::OUTPUT_DEFAULT: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  |                     self::printFormattedErrors($response); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  |                     break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  |                 case self::OUTPUT_PLAINTEXT: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  |                     self::printPlainTextErrors($response); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  |                     break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  |                 case self::OUTPUT_JSON: | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  |                     echo json_encode($response, JSON_PRETTY_PRINT); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  |                     break; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  |             return true; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |         return false;     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  |      * @param object     $response        | 
            
                                                                                                            
                            
            
                                    
            
            
                | 83 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 84 |  |  |      * @return void      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 85 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 86 |  |  |     protected static function printFormattedErrors(object $response) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 87 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 88 |  |  |         // top error badge     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 89 |  |  |         Console::log('  ' .   Console::text(' ERROR ','white', 'red')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 90 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  |         $num = 0; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |         // errors is an array, could have more than one error.. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  |         foreach ($response->errors as $err){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  |             $num++; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  |             Console::log(Console::text('   ✗', 'red') .  self::printResult(' Number:    ', $num, 'lightyellow','', false)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  |             self::printResult('     Status:    ', $err->status ?? null, 'lightyellow','');     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  |              | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  |             if (!empty($err->source) && !empty($err->source->parameter)){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  |                 self::printResult('     Parameter: ', $err->source->parameter, 'lightyellow');     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  |             self::printResult('     Title:     ', $err->title ?? null, 'lightyellow');     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  |             self::printResult('     Detail:    ', $err->detail ?? null, 'lightyellow');     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  |             // separate errors | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  |             if (count($response->errors) > 1){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  |                 Console::log('   ---'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  |         Console::log();            | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  |      * Print a single error | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  |      * @param string    $error      The error message | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  |      * @return void | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  |     protected static function error(string $error) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  |         if (self::isDefaultOuput()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  |             // ✗ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  |             Console::log('  ' .   Console::text(' ERROR ','white', 'red')); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  |             Console::log( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  |                 Console::text('   ✗', 'red') .  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  |                 Console::text(' Detail:    ', 'white') .  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  |                 Console::text($error, 'lightyellow') .  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  |                 Console::text('', 'white') | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  |             );     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  |             Console::log(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  |         }     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  |      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 138 |  |  |      * Helper to validate a condition or exit with an error | 
            
                                                                                                            
                            
            
                                    
            
            
                | 139 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 140 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 141 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 142 |  |  |      * @param bool      $condition      The condition to evaluate | 
            
                                                                                                            
                            
            
                                    
            
            
                | 143 |  |  |      * @param string    $message        Error message | 
            
                                                                                                            
                            
            
                                    
            
            
                | 144 |  |  |      * @param bool      $print          True to print error. Default is true | 
            
                                                                                                            
                            
            
                                    
            
            
                | 145 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 146 |  |  |      * @return bool | 
            
                                                                                                            
                            
            
                                    
            
            
                | 147 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 148 |  |  |     protected static function validate(bool $condition, string $message, bool $print = true) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 149 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 150 |  |  |         if ( !$condition ){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 151 |  |  |             if ($print && self::isDefaultOuput()) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 152 |  |  |                 Console::log(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 153 |  |  |                 self::error($message); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 154 |  |  |                 self::printFooter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 155 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 156 |  |  |             Program::exit(1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 157 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 158 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 159 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 160 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 161 |  |  |      * Get numeric parameter and exit on error | 
            
                                                                                                            
                            
            
                                    
            
            
                | 162 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 163 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 164 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 165 |  |  |      * @param array     $arguments | 
            
                                                                                                            
                            
            
                                    
            
            
                | 166 |  |  |      * @param string    $shortArg           The short argument name | 
            
                                                                                                            
                            
            
                                    
            
            
                | 167 |  |  |      * @param string    $longArg            The long argument name | 
            
                                                                                                            
                            
            
                                    
            
            
                | 168 |  |  |      * @param int       $defaultValue | 
            
                                                                                                            
                            
            
                                    
            
            
                | 169 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 170 |  |  |      * @return int | 
            
                                                                                                            
                            
            
                                    
            
            
                | 171 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 172 |  |  |     protected static function getNumericParameter(array $arguments, string $shortArg, string $longArg, int $defaultValue) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 173 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 174 |  |  |          if (self::inArguments($arguments,$shortArg, $longArg)){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 175 |  |  |             $val = self::getArgumentValue($arguments,$shortArg, $longArg); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 176 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 177 |  |  |             if (!is_numeric($val)){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 178 |  |  |                 self::error("Invalid parameter: $longArg must be a numeric value."); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 179 |  |  |                 self::printFooter(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 180 |  |  |                 Program::exit(1); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 181 |  |  |             } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 182 |  |  |             return intval($val); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 183 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 184 |  |  |         return $defaultValue; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 185 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 186 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 187 |  |  |         /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 188 |  |  |      * Check and print errors in API response. Null response object is considered as no errors | 
            
                                                                                                            
                            
            
                                    
            
            
                | 189 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 190 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 191 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 192 |  |  |      * @param object     $response        | 
            
                                                                                                            
                            
            
                                    
            
            
                | 193 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 194 |  |  |      * @return void      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 195 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 196 |  |  |     protected static function printPlainTextErrors(object $response) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 197 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 198 |  |  |         foreach ($response->errors as $err){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 199 |  |  |             $text = 'Error: '; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 200 |  |  |             $text .= self::getErrorDetail($err, 'title'); | 
                            
                    |  |  |  | 
                                                                                        
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                | 201 |  |  |             $text .= self::getErrorDetail($err, 'statuts'); | 
                            
                    |  |  |  | 
                                                                                        
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                | 202 |  |  |             $text .= self::getErrorDetail($err, 'parameter', 'source'); | 
                            
                    |  |  |  | 
                                                                                        
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                | 203 |  |  |             $text .= self::getErrorDetail($err, 'detail'); | 
                            
                    |  |  |  | 
                                                                                        
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                | 204 |  |  |             $text .= PHP_EOL; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 205 |  |  |             echo $text; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 206 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 207 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 208 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 209 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 210 |  |  |      * Get error property if exist | 
            
                                                                                                            
                            
            
                                    
            
            
                | 211 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 212 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 213 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 214 |  |  |      * @param object     $error        | 
            
                                                                                                            
                            
            
                                    
            
            
                | 215 |  |  |      * @param string     $field        | 
            
                                                                                                            
                            
            
                                    
            
            
                | 216 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 217 |  |  |      * @return void      | 
            
                                                                                                            
                            
            
                                    
            
            
                | 218 |  |  |      */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 219 |  |  |     private static function getErrorDetail(object $error, string $field, ?string $parent = null) | 
            
                                                                                                            
                            
            
                                    
            
            
                | 220 |  |  |     { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 221 |  |  |         if (!empty($parent)){ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 222 |  |  |             return  !empty($error->$parent) && !empty($error->$parent->$field) ? ' ' . $field . ': ' . $error->$parent->$field : ''; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 223 |  |  |         } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 224 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 225 |  |  |         return !empty($error->$field) ? ' ' . $field . ': ' . $error->$field : ''; | 
                            
                    |  |  |  | 
                                                                                        
                                                                                     | 
            
                                                                                                            
                            
            
                                    
            
            
                | 226 |  |  |     } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 227 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 228 |  |  |     /** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 229 |  |  |      * Check and print errors in API response.  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 230 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 231 |  |  |      * @access protected | 
            
                                                                                                            
                            
            
                                    
            
            
                | 232 |  |  |      * @static | 
            
                                                                                                            
                            
            
                                    
            
            
                | 233 |  |  |      * @param object     $response        | 
            
                                                                                                            
                            
            
                                    
            
            
                | 234 |  |  |      *  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 235 |  |  |      * @return bool      | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 236 |  |  |      */ | 
            
                                                        
            
                                    
            
            
                | 237 |  |  |     protected static function checkForEmpty(object $response) | 
            
                                                        
            
                                    
            
            
                | 238 |  |  |     { | 
            
                                                        
            
                                    
            
            
                | 239 |  |  |         // check for empty response ? | 
            
                                                        
            
                                    
            
            
                | 240 |  |  |         if ( empty($response) || empty($response->data) ){ | 
            
                                                        
            
                                    
            
            
                | 241 |  |  |             self::error('An unexpected error occurred.'); | 
            
                                                        
            
                                    
            
            
                | 242 |  |  |             return true; | 
            
                                                        
            
                                    
            
            
                | 243 |  |  |         } | 
            
                                                        
            
                                    
            
            
                | 244 |  |  |         return false;     | 
            
                                                        
            
                                    
            
            
                | 245 |  |  |     } | 
            
                                                        
            
                                    
            
            
                | 246 |  |  | } | 
            
                        
This check looks for function or method calls that always return null and whose return value is used.
The method
getObject()can return nothing but null, so it makes no sense to use the return value.The reason is most likely that a function or method is imcomplete or has been reduced for debug purposes.