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<?php |
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namespace WebPConvert\Convert\BaseConverters\BaseTraits; |
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trait WarningLoggerTrait |
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{ |
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abstract protected function logLn($msg, $style = ''); |
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/** |
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* Handle errors during conversion. |
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* The function is a callback used with "set_error_handler". It logs |
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*/ |
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protected function warningHandler($errno, $errstr, $errfile, $errline) |
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{ |
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/* |
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We do NOT do the following (even though it is generally recommended): |
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if (!(error_reporting() & $errno)) { |
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// This error code is not included in error_reporting, so let it fall |
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// through to the standard PHP error handler |
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return false; |
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} |
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- Because we want to log all warnings and errors (also the ones that was suppressed with @) |
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https://secure.php.net/manual/en/language.operators.errorcontrol.php |
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*/ |
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$errorTypes = [ |
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E_WARNING => "Warning", |
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E_NOTICE => "Notice", |
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E_USER_ERROR => "User Error", |
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E_USER_WARNING => "User Warning", |
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E_USER_NOTICE => "User Notice", |
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E_STRICT => "Strict Notice", |
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E_DEPRECATED => "Deprecated", |
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E_USER_DEPRECATED => "User Deprecated", |
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/* |
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The following can never be catched by a custom error handler: |
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E_PARSE, E_ERROR, E_CORE_ERROR, E_CORE_WARNING, E_COMPILE_ERROR, E_COMPILE_WARNING |
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We do do not currently trigger the following: |
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E_USER_ERROR, E_USER_WARNING, E_USER_NOTICE |
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But we may want to do that at some point, like this: |
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trigger_error('Your version of Gd is very old', E_USER_WARNING); |
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*/ |
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]; |
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if (isset($errorTypes[$errno])) { |
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$errType = $errorTypes[$errno]; |
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} else { |
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$errType = "Unknown error ($errno)"; |
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} |
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$msg = $errType . ': ' . $errstr . ' in ' . $errfile . ', line ' . $errline . ', PHP ' . PHP_VERSION . |
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' (' . PHP_OS . ')'; |
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$this->logLn($msg); |
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/* |
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if ($errno == E_USER_ERROR) { |
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// trigger error. |
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// unfortunately, we can only catch user errors |
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throw new ConversionFailedException('Uncaught error in converter', $msg); |
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}*/ |
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return false; // let PHP handle the error from here |
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} |
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protected function activateWarningLogger() |
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{ |
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set_error_handler( |
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array($this, "warningHandler"), |
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E_WARNING | E_USER_WARNING | E_NOTICE | E_USER_NOTICE | E_USER_ERROR |
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); |
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} |
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protected function deactivateWarningLogger() |
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{ |
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restore_error_handler(); |
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} |
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} |
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