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<?php |
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namespace WebPConvert\Convert\Converters; |
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use WebPConvert\Convert\Converters\AbstractConverter; |
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use WebPConvert\Convert\Converters\ConverterTraits\EncodingAutoTrait; |
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use WebPConvert\Convert\Converters\ConverterTraits\ExecTrait; |
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use WebPConvert\Convert\Exceptions\ConversionFailed\ConverterNotOperational\SystemRequirementsNotMetException; |
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use WebPConvert\Convert\Exceptions\ConversionFailedException; |
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use WebPConvert\Convert\Exceptions\ConversionFailed\ConverterNotOperationalException; |
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use WebPConvert\Options\BooleanOption; |
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use WebPConvert\Options\SensitiveStringOption; |
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use WebPConvert\Options\StringOption; |
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/** |
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* Convert images to webp by calling cwebp binary. |
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* |
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* @package WebPConvert |
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* @author Bjørn Rosell <[email protected]> |
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* @since Class available since Release 2.0.0 |
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*/ |
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class Cwebp extends AbstractConverter |
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{ |
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use EncodingAutoTrait; |
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use ExecTrait; |
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protected function getUnsupportedDefaultOptions() |
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{ |
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return []; |
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} |
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protected function createOptions() |
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{ |
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parent::createOptions(); |
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$this->options2->addOptions( |
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new StringOption('command-line-options', ''), |
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new SensitiveStringOption('rel-path-to-precompiled-binaries', './Binaries'), |
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new BooleanOption('try-cwebp', true), |
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new BooleanOption('try-common-system-paths', true), |
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new BooleanOption('try-supplied-binary-for-os', true) |
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); |
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} |
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// System paths to look for cwebp binary |
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private static $cwebpDefaultPaths = [ |
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//'cwebp', |
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'/usr/bin/cwebp', |
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'/usr/local/bin/cwebp', |
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'/usr/gnu/bin/cwebp', |
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'/usr/syno/bin/cwebp' |
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]; |
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// OS-specific binaries included in this library, along with hashes |
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// If other binaries are going to be added, notice that the first argument is what PHP_OS returns. |
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// (possible values, see here: https://stackoverflow.com/questions/738823/possible-values-for-php-os) |
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// Got the precompiled binaries here: https://developers.google.com/speed/webp/docs/precompiled |
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private static $suppliedBinariesInfo = [ |
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'WINNT' => [ |
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['cwebp-1.0.3-windows-x64.exe', 'b3aaab03ca587e887f11f6ae612293d034ee04f4f7f6bc7a175321bb47a10169'], |
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], |
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'Darwin' => [ |
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['cwebp-1.0.3-mac-10.14', '7332ed5f0d4091e2379b1eaa32a764f8c0d51b7926996a1dc8b4ef4e3c441a12'], |
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], |
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'SunOS' => [ |
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// Got this from ewww Wordpress plugin, which unfortunately still uses the old 0.6.0 versions |
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// Can you help me get a 1.0.3 version? |
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['cwebp-0.6.0-solaris', '1febaffbb18e52dc2c524cda9eefd00c6db95bc388732868999c0f48deb73b4f'] |
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], |
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'FreeBSD' => [ |
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// Got this from ewww Wordpress plugin, which unfortunately still uses the old 0.6.0 versions |
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// Can you help me get a 1.0.3 version? |
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['cwebp-0.6.0-fbsd', 'e5cbea11c97fadffe221fdf57c093c19af2737e4bbd2cb3cd5e908de64286573'] |
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], |
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'Linux' => [ |
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// Dynamically linked executable. |
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// It seems it is slightly faster than the statically linked |
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['cwebp-1.0.3-linux-x86-64', 'a663215a46d347f63e1ca641c18527a1ae7a2c9a0ae85ca966a97477ea13dfe0'], |
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// Statically linked executable |
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// It may be that it on some systems works, where the dynamically linked does not (see #196) |
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['cwebp-1.0.3-linux-x86-64-static', 'ab96f01b49336da8b976c498528080ff614112d5985da69943b48e0cb1c5228a'], |
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// Old executable for systems in case both of the above fails |
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['cwebp-0.6.1-linux-x86-64', '916623e5e9183237c851374d969aebdb96e0edc0692ab7937b95ea67dc3b2568'], |
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] |
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]; |
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/** |
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* Check all hashes of the precompiled binaries. |
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* |
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* This isn't used when converting, but can be used as a startup check. |
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*/ |
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public function checkAllHashes() |
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{ |
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foreach (self::$suppliedBinariesInfo as $os => $arr) { |
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foreach ($arr as $i => list($filename, $hash)) { |
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if ($hash != hash_file("sha256", __DIR__ . '/Binaries/' . $filename)) { |
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throw new \Exception('Hash for ' . $filename . ' is incorrect!'); |
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} |
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} |
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} |
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} |
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public function checkOperationality() |
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{ |
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$this->checkOperationalityExecTrait(); |
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$options = $this->options; |
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if (!$options['try-supplied-binary-for-os'] && !$options['try-common-system-paths'] && !$options['try-cwebp']) { |
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throw new ConverterNotOperationalException( |
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'Configured to neither try pure cwebp command, ' . |
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'nor look for cweb binaries in common system locations and ' . |
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'nor to use one of the supplied precompiled binaries. ' . |
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'But these are the only ways this converter can convert images. No conversion can be made!' |
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); |
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} |
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2 |
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} |
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private function executeBinary($binary, $commandOptions, $useNice) |
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{ |
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//$version = $this->detectVersion($binary); |
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$command = ($useNice ? 'nice ' : '') . $binary . ' ' . $commandOptions; |
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//$logger->logLn('command options:' . $commandOptions); |
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2 |
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$this->logLn('Trying to convert by executing the following command:'); |
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$this->logLn($command); |
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exec($command, $output, $returnCode); |
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$this->logExecOutput($output); |
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/* |
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if ($returnCode == 255) { |
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if (isset($output[0])) { |
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// Could be an error like 'Error! Cannot open output file' or 'Error! ...preset... ' |
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$this->logLn(print_r($output[0], true)); |
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} |
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}*/ |
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//$logger->logLn(self::msgForExitCode($returnCode)); |
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2 |
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return intval($returnCode); |
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} |
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/** |
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* Use "escapeshellarg()" on all arguments in a commandline string of options |
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* |
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* For example, passing '-sharpness 5 -crop 10 10 40 40 -low_memory' will result in: |
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* [ |
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* "-sharpness '5'" |
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* "-crop '10' '10' '40' '40'" |
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* "-low_memory" |
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* ] |
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* @param string $commandLineOptions string which can contain multiple commandline options |
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* @return array Array of command options |
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*/ |
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1 |
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private static function escapeShellArgOnCommandLineOptions($commandLineOptions) |
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{ |
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1 |
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if (!ctype_print($commandLineOptions)) { |
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throw new ConversionFailedException( |
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'Non-printable characters are not allowed in the extra command line options' |
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); |
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} |
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1 |
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if (preg_match('#[^a-zA-Z0-9_\s\-]#', $commandLineOptions)) { |
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throw new ConversionFailedException('The extra command line options contains inacceptable characters'); |
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} |
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1 |
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$cmdOptions = []; |
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1 |
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$arr = explode(' -', ' ' . $commandLineOptions); |
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1 |
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foreach ($arr as $cmdOption) { |
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1 |
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$pos = strpos($cmdOption, ' '); |
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1 |
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$cName = ''; |
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1 |
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if (!$pos) { |
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1 |
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$cName = $cmdOption; |
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1 |
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if ($cName == '') { |
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1 |
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continue; |
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} |
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$cmdOptions[] = '-' . $cName; |
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} else { |
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1 |
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$cName = substr($cmdOption, 0, $pos); |
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1 |
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$cValues = substr($cmdOption, $pos + 1); |
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1 |
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$cValuesArr = explode(' ', $cValues); |
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1 |
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foreach ($cValuesArr as &$cArg) { |
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1 |
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$cArg = escapeshellarg($cArg); |
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} |
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1 |
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$cValues = implode(' ', $cValuesArr); |
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1 |
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$cmdOptions[] = '-' . $cName . ' ' . $cValues; |
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} |
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} |
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1 |
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return $cmdOptions; |
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} |
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/** |
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* Build command line options for a given version of cwebp. |
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* |
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* The "-near_lossless" param is not supported on older versions of cwebp, so skip on those. |
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* |
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* @param string $version Version of cwebp (ie "1.0.3") |
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* @return string |
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*/ |
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private function createCommandLineOptions($version) |
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{ |
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$this->logLn('Creating command line options for version: ' . $version); |
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// we only need two decimal places for version. |
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// convert to number to make it easier to compare |
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6 |
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$version = preg_match('#^\d+\.\d+#', $version, $matches); |
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6 |
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$versionNum = 0; |
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6 |
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if (isset($matches[0])) { |
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6 |
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$versionNum = floatval($matches[0]); |
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} else { |
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$this->logLn( |
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'Could not extract version number from the following version string: ' . $version, |
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'bold' |
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); |
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} |
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//$this->logLn('version:' . strval($versionNum)); |
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6 |
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$options = $this->options; |
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6 |
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$cmdOptions = []; |
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// Metadata (all, exif, icc, xmp or none (default)) |
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// Comma-separated list of existing metadata to copy from input to output |
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6 |
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if ($versionNum >= 0.3) { |
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6 |
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$cmdOptions[] = '-metadata ' . $options['metadata']; |
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} |
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// preset. Appears first in the list as recommended in the docs |
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6 |
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if (!is_null($options['preset'])) { |
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6 |
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if ($options['preset'] != 'none') { |
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1 |
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$cmdOptions[] = '-preset ' . $options['preset']; |
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} |
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} |
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// Size |
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6 |
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$addedSizeOption = false; |
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6 |
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if (!is_null($options['size-in-percentage'])) { |
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1 |
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$sizeSource = filesize($this->source); |
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1 |
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if ($sizeSource !== false) { |
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1 |
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$targetSize = floor($sizeSource * $options['size-in-percentage'] / 100); |
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1 |
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$cmdOptions[] = '-size ' . $targetSize; |
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1 |
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$addedSizeOption = true; |
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} |
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} |
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248
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// quality |
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6 |
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if (!$addedSizeOption) { |
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5 |
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$cmdOptions[] = '-q ' . $this->getCalculatedQuality(); |
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} |
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252
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253
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// alpha-quality |
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254
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6 |
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if ($this->options['alpha-quality'] !== 100) { |
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255
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6 |
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$cmdOptions[] = '-alpha_q ' . escapeshellarg($this->options['alpha-quality']); |
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} |
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257
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258
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// Losless PNG conversion |
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259
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6 |
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if ($options['encoding'] == 'lossless') { |
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260
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// No need to add -lossless when near-lossless is used (on version >= 0.5) |
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4 |
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if (($options['near-lossless'] === 100) || ($versionNum < 0.5)) { |
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1 |
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$cmdOptions[] = '-lossless'; |
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} |
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264
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} |
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266
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// Near-lossles |
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267
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6 |
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if ($options['near-lossless'] !== 100) { |
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268
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5 |
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if ($versionNum < 0.5) { |
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$this->logLn( |
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'The near-lossless option is not supported on this (rather old) version of cwebp' . |
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'- skipping it.', |
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'italic' |
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); |
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} else { |
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// We only let near_lossless have effect when encoding is set to "lossless" |
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// otherwise encoding=auto would not work as expected |
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278
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5 |
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if ($options['encoding'] == 'lossless') { |
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3 |
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$cmdOptions[] ='-near_lossless ' . $options['near-lossless']; |
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} else { |
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281
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4 |
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$this->logLn( |
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4 |
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'The near-lossless option ignored for lossy' |
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283
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); |
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284
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} |
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285
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} |
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286
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} |
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287
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288
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6 |
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if ($options['auto-filter'] === true) { |
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289
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1 |
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$cmdOptions[] = '-af'; |
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290
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} |
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291
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292
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// Built-in method option |
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293
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6 |
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$cmdOptions[] = '-m ' . strval($options['method']); |
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294
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295
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// Built-in low memory option |
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296
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6 |
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if ($options['low-memory']) { |
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297
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1 |
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$cmdOptions[] = '-low_memory'; |
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298
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} |
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299
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|
|
|
300
|
|
|
// command-line-options |
|
301
|
6 |
|
if ($options['command-line-options']) { |
|
302
|
|
|
/* |
|
303
|
|
|
In some years, we can use the splat instead (requires PHP 5.6) |
|
304
|
|
|
array_push( |
|
305
|
|
|
$cmdOptions, |
|
306
|
|
|
...self::escapeShellArgOnCommandLineOptions($options['command-line-options']) |
|
307
|
|
|
); |
|
308
|
|
|
*/ |
|
309
|
1 |
|
foreach (self::escapeShellArgOnCommandLineOptions($options['command-line-options']) as $cmdLineOption) { |
|
310
|
1 |
|
array_push($cmdOptions, $cmdLineOption); |
|
311
|
|
|
} |
|
312
|
|
|
} |
|
313
|
|
|
|
|
314
|
|
|
// Source file |
|
315
|
6 |
|
$cmdOptions[] = escapeshellarg($this->source); |
|
316
|
|
|
|
|
317
|
|
|
// Output |
|
318
|
6 |
|
$cmdOptions[] = '-o ' . escapeshellarg($this->destination); |
|
319
|
|
|
|
|
320
|
|
|
// Redirect stderr to same place as stdout |
|
321
|
|
|
// https://www.brianstorti.com/understanding-shell-script-idiom-redirect/ |
|
322
|
6 |
|
$cmdOptions[] = '2>&1'; |
|
323
|
|
|
|
|
324
|
6 |
|
$commandOptions = implode(' ', $cmdOptions); |
|
325
|
|
|
//$this->logLn('command line options:' . $commandOptions); |
|
326
|
|
|
|
|
327
|
6 |
|
return $commandOptions; |
|
328
|
|
|
} |
|
329
|
|
|
|
|
330
|
|
|
/** |
|
331
|
|
|
* Get path for supplied binary for current OS - and validate hash. |
|
332
|
|
|
* |
|
333
|
|
|
* @return array Array of supplied binaries (which actually exists, and where hash validates) |
|
334
|
|
|
*/ |
|
335
|
2 |
|
private function getSuppliedBinaryPathForOS() |
|
336
|
|
|
{ |
|
337
|
2 |
|
$this->log('Checking if we have a supplied precompiled binary for your OS (' . PHP_OS . ')... '); |
|
338
|
|
|
|
|
339
|
|
|
// Try supplied binary (if available for OS, and hash is correct) |
|
340
|
2 |
|
$options = $this->options; |
|
341
|
2 |
|
if (!isset(self::$suppliedBinariesInfo[PHP_OS])) { |
|
342
|
|
|
$this->logLn('No we dont - not for that OS'); |
|
343
|
|
|
return []; |
|
344
|
|
|
} |
|
345
|
|
|
|
|
346
|
2 |
|
$result = []; |
|
347
|
2 |
|
$files = self::$suppliedBinariesInfo[PHP_OS]; |
|
348
|
2 |
|
if (count($files) == 1) { |
|
349
|
|
|
$this->logLn('We do.'); |
|
350
|
|
|
} else { |
|
351
|
2 |
|
$this->logLn('We do. We in fact have ' . count($files)); |
|
352
|
|
|
} |
|
353
|
|
|
|
|
354
|
2 |
|
foreach ($files as $i => list($file, $hash)) { |
|
355
|
|
|
//$file = $info[0]; |
|
356
|
|
|
//$hash = $info[1]; |
|
357
|
|
|
|
|
358
|
2 |
|
$binaryFile = __DIR__ . '/' . $options['rel-path-to-precompiled-binaries'] . '/' . $file; |
|
359
|
|
|
|
|
360
|
|
|
// Replace "/./" with "/" in path (we could alternatively use realpath) |
|
361
|
|
|
//$binaryFile = preg_replace('#\/\.\/#', '/', $binaryFile); |
|
362
|
|
|
// The file should exist, but may have been removed manually. |
|
363
|
|
|
/* |
|
364
|
|
|
if (!file_exists($binaryFile)) { |
|
365
|
|
|
$this->logLn('Supplied binary not found! It ought to be here:' . $binaryFile, 'italic'); |
|
366
|
|
|
return false; |
|
367
|
|
|
}*/ |
|
368
|
|
|
|
|
369
|
2 |
|
$realPathResult = realpath($binaryFile); |
|
370
|
2 |
|
if ($realPathResult === false) { |
|
371
|
|
|
$this->logLn('Supplied binary not found! It ought to be here:' . $binaryFile, 'italic'); |
|
372
|
|
|
continue; |
|
373
|
|
|
} |
|
374
|
2 |
|
$binaryFile = $realPathResult; |
|
375
|
|
|
|
|
376
|
|
|
// File exists, now generate its hash |
|
377
|
|
|
// hash_file() is normally available, but it is not always |
|
378
|
|
|
// - https://stackoverflow.com/questions/17382712/php-5-3-20-undefined-function-hash |
|
379
|
|
|
// If available, validate that hash is correct. |
|
380
|
|
|
|
|
381
|
2 |
|
if (function_exists('hash_file')) { |
|
382
|
2 |
|
$binaryHash = hash_file('sha256', $binaryFile); |
|
383
|
|
|
|
|
384
|
2 |
|
if ($binaryHash != $hash) { |
|
385
|
|
|
$this->logLn( |
|
386
|
|
|
'Binary checksum of supplied binary is invalid! ' . |
|
387
|
|
|
'Did you transfer with FTP, but not in binary mode? ' . |
|
388
|
|
|
'File:' . $binaryFile . '. ' . |
|
389
|
|
|
'Expected checksum: ' . $hash . '. ' . |
|
390
|
|
|
'Actual checksum:' . $binaryHash . '.', |
|
391
|
|
|
'bold' |
|
392
|
|
|
); |
|
393
|
|
|
continue; |
|
394
|
|
|
} |
|
395
|
|
|
} |
|
396
|
2 |
|
$result[] = $binaryFile; |
|
397
|
|
|
} |
|
398
|
|
|
|
|
399
|
2 |
|
return $result; |
|
400
|
|
|
} |
|
401
|
|
|
|
|
402
|
|
|
private function who() |
|
403
|
|
|
{ |
|
404
|
|
|
exec('whoami', $whoOutput, $whoReturnCode); |
|
405
|
|
|
if (($whoReturnCode == 0) && (isset($whoOutput[0]))) { |
|
406
|
|
|
return $whoOutput[0]; |
|
407
|
|
|
} else { |
|
408
|
|
|
return 'the user that the command was run with'; |
|
409
|
|
|
} |
|
410
|
|
|
} |
|
411
|
|
|
|
|
412
|
|
|
/** |
|
413
|
|
|
* |
|
414
|
|
|
* @return string|int Version string (ie "1.0.2") OR return code, in case of failure |
|
415
|
|
|
*/ |
|
416
|
2 |
|
private function detectVersion($binary) |
|
417
|
|
|
{ |
|
418
|
2 |
|
$command = $binary . ' -version'; |
|
419
|
2 |
|
$this->log('- Executing: ' . $command); |
|
420
|
2 |
|
exec($command, $output, $returnCode); |
|
421
|
|
|
|
|
422
|
2 |
|
if ($returnCode == 0) { |
|
423
|
2 |
|
if (isset($output[0])) { |
|
424
|
2 |
|
$this->logLn('. Result: version: *' . $output[0] . '*'); |
|
425
|
2 |
|
return $output[0]; |
|
426
|
|
|
} |
|
427
|
|
|
} else { |
|
428
|
2 |
|
$this->log('. Result: '); |
|
429
|
2 |
|
if ($returnCode == 127) { |
|
430
|
2 |
|
$this->logLn('*Exec failed* (the cwebp binary was not found at path: ' . $binary. ')'); |
|
431
|
|
|
} else { |
|
432
|
|
|
if ($returnCode == 126) { |
|
433
|
|
|
$this->logLn( |
|
434
|
|
|
'*Exec failed*. ' . |
|
435
|
|
|
'Permission denied (' . $this->who() . ' does not have permission to execute that binary)' |
|
436
|
|
|
); |
|
437
|
|
|
} else { |
|
438
|
|
|
$this->logLn( |
|
439
|
|
|
'*Exec failed* (return code: ' . $returnCode . ')' |
|
440
|
|
|
); |
|
441
|
|
|
$this->logExecOutput($output); |
|
442
|
|
|
} |
|
443
|
|
|
} |
|
444
|
2 |
|
return $returnCode; |
|
445
|
|
|
} |
|
446
|
|
|
} |
|
447
|
|
|
|
|
448
|
|
|
/** |
|
449
|
|
|
* Check versions for an array of binaries. |
|
450
|
|
|
* |
|
451
|
|
|
* @return array the "detected" key holds working binaries and their version numbers, the |
|
452
|
|
|
* the "failed" key holds failed binaries and their error codes. |
|
453
|
|
|
*/ |
|
454
|
2 |
|
private function detectVersions($binaries) |
|
455
|
|
|
{ |
|
456
|
2 |
|
$binariesWithVersions = []; |
|
457
|
2 |
|
$binariesWithFailCodes = []; |
|
458
|
|
|
|
|
459
|
2 |
|
foreach ($binaries as $binary) { |
|
460
|
2 |
|
$versionStringOrFailCode = $this->detectVersion($binary); |
|
461
|
|
|
// $this->logLn($binary . ': ' . $versionString); |
|
462
|
2 |
|
if (gettype($versionStringOrFailCode) == 'string') { |
|
463
|
2 |
|
$binariesWithVersions[$binary] = $versionStringOrFailCode; |
|
464
|
|
|
} else { |
|
465
|
2 |
|
$binariesWithFailCodes[$binary] = $versionStringOrFailCode; |
|
466
|
|
|
} |
|
467
|
|
|
} |
|
468
|
2 |
|
return ['detected' => $binariesWithVersions, 'failed' => $binariesWithFailCodes]; |
|
469
|
|
|
} |
|
470
|
|
|
|
|
471
|
|
|
/** |
|
472
|
|
|
* Detect versions of all cwebps that are of relevance (according to configuration). |
|
473
|
|
|
* |
|
474
|
|
|
* @return array the "detected" key holds working binaries and their version numbers, the |
|
475
|
|
|
* the "failed" key holds failed binaries and their error codes. |
|
476
|
|
|
*/ |
|
477
|
2 |
|
private function getCwebpVersions() |
|
478
|
|
|
{ |
|
479
|
|
|
// TODO: Check out if exec('whereis cwebp'); would be a good idea |
|
480
|
|
|
|
|
481
|
2 |
|
if (defined('WEBPCONVERT_CWEBP_PATH')) { |
|
482
|
|
|
$this->logLn('WEBPCONVERT_CWEBP_PATH was defined, so using that path and ignoring any other'); |
|
483
|
|
|
return $this->detectVersions([constant('WEBPCONVERT_CWEBP_PATH')]); |
|
484
|
|
|
} |
|
485
|
2 |
|
if (!empty(getenv('WEBPCONVERT_CWEBP_PATH'))) { |
|
486
|
|
|
$this->logLn( |
|
487
|
|
|
'WEBPCONVERT_CWEBP_PATH environment variable was set, so using that path and ignoring any other' |
|
488
|
|
|
); |
|
489
|
|
|
return $this->detectVersions([getenv('WEBPCONVERT_CWEBP_PATH')]); |
|
490
|
|
|
} |
|
491
|
|
|
|
|
492
|
2 |
|
$versions = []; |
|
493
|
2 |
|
if ($this->options['try-cwebp']) { |
|
494
|
2 |
|
$this->logLn( |
|
495
|
2 |
|
'Detecting version of cwebp command (it may not be available, but we try nonetheless)' |
|
496
|
|
|
); |
|
497
|
2 |
|
$versions = $this->detectVersions(['cwebp']); |
|
498
|
|
|
} |
|
499
|
2 |
|
if ($this->options['try-common-system-paths']) { |
|
500
|
|
|
// Note: |
|
501
|
|
|
// We used to do a file_exists($binary) check. |
|
502
|
|
|
// That was not a good idea because it could trigger open_basedir errors. The open_basedir |
|
503
|
|
|
// restriction does not operate on the exec command. So note to self: Do not do that again. |
|
504
|
1 |
|
$this->logLn( |
|
505
|
|
|
'Detecting versions of the cwebp binaries in common system paths ' . |
|
506
|
1 |
|
'(some may not be found, that is to be expected)' |
|
507
|
|
|
); |
|
508
|
1 |
|
$versions = array_merge_recursive($versions, $this->detectVersions(self::$cwebpDefaultPaths)); |
|
509
|
|
|
} |
|
510
|
2 |
|
if ($this->options['try-supplied-binary-for-os']) { |
|
511
|
2 |
|
$versions = array_merge_recursive( |
|
512
|
2 |
|
$versions, |
|
513
|
2 |
|
$this->detectVersions($this->getSuppliedBinaryPathForOS()) |
|
514
|
|
|
); |
|
515
|
|
|
} |
|
516
|
2 |
|
return $versions; |
|
517
|
|
|
} |
|
518
|
|
|
|
|
519
|
|
|
/** |
|
520
|
|
|
* Try executing a cwebp binary (or command, like: "cwebp") |
|
521
|
|
|
* |
|
522
|
|
|
* @param string $binary |
|
523
|
|
|
* @param string $version Version of cwebp (ie "1.0.3") |
|
524
|
|
|
* @param boolean $useNice Whether to use "nice" command or not |
|
525
|
|
|
* |
|
526
|
|
|
* @return boolean success or not. |
|
527
|
|
|
*/ |
|
528
|
2 |
|
private function tryCwebpBinary($binary, $version, $useNice) |
|
529
|
|
|
{ |
|
530
|
|
|
|
|
531
|
|
|
//$this->logLn('Trying binary: ' . $binary); |
|
532
|
2 |
|
$commandOptions = $this->createCommandLineOptions($version); |
|
533
|
|
|
|
|
534
|
2 |
|
$returnCode = $this->executeBinary($binary, $commandOptions, $useNice); |
|
535
|
2 |
|
if ($returnCode == 0) { |
|
536
|
|
|
// It has happened that even with return code 0, there was no file at destination. |
|
537
|
2 |
|
if (!file_exists($this->destination)) { |
|
538
|
|
|
$this->logLn('executing cweb returned success code - but no file was found at destination!'); |
|
539
|
|
|
return false; |
|
540
|
|
|
} else { |
|
541
|
2 |
|
$this->logLn('Success'); |
|
542
|
2 |
|
return true; |
|
543
|
|
|
} |
|
544
|
|
|
} else { |
|
545
|
|
|
$this->logLn( |
|
546
|
|
|
'Exec failed (return code: ' . $returnCode . ')' |
|
547
|
|
|
); |
|
548
|
|
|
return false; |
|
549
|
|
|
} |
|
550
|
|
|
} |
|
551
|
|
|
|
|
552
|
|
|
/** |
|
553
|
|
|
* Helper for composing an error message when no converters are working. |
|
554
|
|
|
* |
|
555
|
|
|
* @param array $versions The array which we get from calling ::getCwebpVersions() |
|
556
|
|
|
* @return string An informative and to the point error message. |
|
557
|
|
|
*/ |
|
558
|
|
|
private function composeMeaningfullErrorMessageNoVersionsWorking($versions) |
|
559
|
|
|
{ |
|
560
|
|
|
|
|
561
|
|
|
$uniqueFailCodes = array_unique(array_values($versions['failed'])); |
|
562
|
|
|
$justOne = (count($versions['failed']) == 1); |
|
563
|
|
|
|
|
564
|
|
|
if (count($uniqueFailCodes) == 1) { |
|
565
|
|
|
if ($uniqueFailCodes[0] == 127) { |
|
566
|
|
|
return 'No cwebp binaries located. Check the conversion log for details.'; |
|
567
|
|
|
} |
|
568
|
|
|
} |
|
569
|
|
|
// If there are more failures than 127, the 127 failures are unintesting. |
|
570
|
|
|
// It is to be expected that some of the common system paths does not contain a cwebp. |
|
571
|
|
|
$uniqueFailCodesBesides127 = array_diff($uniqueFailCodes, [127]); |
|
572
|
|
|
|
|
573
|
|
|
if (count($uniqueFailCodesBesides127) == 1) { |
|
574
|
|
|
if ($uniqueFailCodesBesides127[0] == 126) { |
|
575
|
|
|
return 'No cwebp binaries could be executed (permission denied for ' . $this->who() . ').'; |
|
576
|
|
|
} |
|
577
|
|
|
} |
|
578
|
|
|
|
|
579
|
|
|
$errorMsg = ''; |
|
580
|
|
|
if ($justOne) { |
|
581
|
|
|
$errorMsg .= 'The cwebp file found cannot be can be executed '; |
|
582
|
|
|
} else { |
|
583
|
|
|
$errorMsg .= 'None of the cwebp files can be executed '; |
|
584
|
|
|
} |
|
585
|
|
|
if (count($uniqueFailCodesBesides127) == 1) { |
|
586
|
|
|
$errorMsg .= '(failure code: ' . $uniqueFailCodesBesides127[0] . ')'; |
|
587
|
|
|
} else { |
|
588
|
|
|
$errorMsg .= '(failure codes: ' . implode(', ', $uniqueFailCodesBesides127) . ')'; |
|
589
|
|
|
} |
|
590
|
|
|
return $errorMsg; |
|
591
|
|
|
} |
|
592
|
|
|
|
|
593
|
2 |
|
protected function doActualConvert() |
|
594
|
|
|
{ |
|
595
|
2 |
|
$versions = $this->getCwebpVersions(); |
|
596
|
2 |
|
$binaryVersions = $versions['detected']; |
|
597
|
2 |
|
if (count($binaryVersions) == 0) { |
|
598
|
|
|
// No working cwebp binaries found. |
|
599
|
|
|
|
|
600
|
|
|
throw new SystemRequirementsNotMetException( |
|
601
|
|
|
$this->composeMeaningfullErrorMessageNoVersionsWorking($versions) |
|
602
|
|
|
); |
|
603
|
|
|
} |
|
604
|
|
|
|
|
605
|
|
|
// Sort binaries so those with highest numbers comes first |
|
606
|
2 |
|
arsort($binaryVersions); |
|
607
|
2 |
|
$this->logLn( |
|
608
|
2 |
|
'Here is what we found, ordered by version number.' |
|
609
|
|
|
); |
|
610
|
2 |
|
foreach ($binaryVersions as $binary => $version) { |
|
611
|
2 |
|
$this->logLn('- ' . $binary . ': (version: ' . $version .')'); |
|
612
|
|
|
} |
|
613
|
|
|
|
|
614
|
|
|
// Execute! |
|
615
|
2 |
|
$this->logLn( |
|
616
|
2 |
|
'Trying the first of these. If that should fail (it should not), the next will be tried and so on.' |
|
617
|
|
|
); |
|
618
|
2 |
|
$useNice = (($this->options['use-nice']) && self::hasNiceSupport()); |
|
619
|
2 |
|
$success = false; |
|
620
|
2 |
|
foreach ($binaryVersions as $binary => $version) { |
|
621
|
2 |
|
if ($this->tryCwebpBinary($binary, $version, $useNice)) { |
|
622
|
2 |
|
$success = true; |
|
623
|
2 |
|
break; |
|
624
|
|
|
} |
|
625
|
|
|
} |
|
626
|
|
|
|
|
627
|
|
|
// cwebp sets file permissions to 664 but instead .. |
|
628
|
|
|
// .. $destination's parent folder's permissions should be used (except executable bits) |
|
629
|
|
|
// (or perhaps the current umask instead? https://www.php.net/umask) |
|
630
|
|
|
|
|
631
|
2 |
|
if ($success) { |
|
632
|
2 |
|
$destinationParent = dirname($this->destination); |
|
633
|
2 |
|
$fileStatistics = stat($destinationParent); |
|
634
|
2 |
|
if ($fileStatistics !== false) { |
|
635
|
|
|
// Apply same permissions as parent folder but strip off the executable bits |
|
636
|
2 |
|
$permissions = $fileStatistics['mode'] & 0000666; |
|
637
|
2 |
|
chmod($this->destination, $permissions); |
|
638
|
|
|
} |
|
639
|
|
|
} else { |
|
640
|
|
|
throw new SystemRequirementsNotMetException('Failed converting. Check the conversion log for details.'); |
|
641
|
|
|
} |
|
642
|
2 |
|
} |
|
643
|
|
|
} |
|
644
|
|
|
|
rosell-dk /
webp-convert
