public function execute()
{
// FIXME: This is horrible, no good, very bad hack. Only for testing,
// and probably should be eventually replaced with something more sane.
$updaterScript = "extensions/CirrusSearch/maintenance/updateSuggesterIndex.php";
$this->getResult()->addValue(null, 'result', wfShellExecWithStderr("unset REQUEST_METHOD; /usr/local/bin/mwscript {$updaterScript} --wiki " . wfWikiID()));
}
/**
* @param File $file
* @param array $params Rotate parameters.
* 'rotation' clockwise rotation in degrees, allowed are multiples of 90
* @since 1.21
* @return bool
*/
public function rotate($file, $params)
{
global $wgJpegTran;
$rotation = ($params['rotation'] + $this->getRotation($file)) % 360;
if ($wgJpegTran && is_file($wgJpegTran)) {
$cmd = wfEscapeShellArg($wgJpegTran) . " -rotate " . wfEscapeShellArg($rotation) . " -outfile " . wfEscapeShellArg($params['dstPath']) . " " . wfEscapeShellArg($params['srcPath']);
wfDebug(__METHOD__ . ": running jpgtran: {$cmd}\n");
wfProfileIn('jpegtran');
$retval = 0;
$err = wfShellExecWithStderr($cmd, $retval);
wfProfileOut('jpegtran');
if ($retval !== 0) {
$this->logErrorForExternalProcess($retval, $err, $cmd);
return new MediaTransformError('thumbnail_error', 0, 0, $err);
}
return false;
} else {
return parent::rotate($file, $params);
}
}
/**
* @param File $file
* @param array $params Rotate parameters.
* 'rotation' clockwise rotation in degrees, allowed are multiples of 90
* @since 1.21
* @return bool
*/
public function rotate($file, $params)
{
global $wgImageMagickConvertCommand;
$rotation = ($params['rotation'] + $this->getRotation($file)) % 360;
$scene = false;
$scaler = $this->getScalerType(null, false);
switch ($scaler) {
case 'im':
$cmd = wfEscapeShellArg($wgImageMagickConvertCommand) . " " . wfEscapeShellArg($this->escapeMagickInput($params['srcPath'], $scene)) . " -rotate " . wfEscapeShellArg("-{$rotation}") . " " . wfEscapeShellArg($this->escapeMagickOutput($params['dstPath']));
wfDebug(__METHOD__ . ": running ImageMagick: {$cmd}\n");
$retval = 0;
$err = wfShellExecWithStderr($cmd, $retval);
if ($retval !== 0) {
$this->logErrorForExternalProcess($retval, $err, $cmd);
return new MediaTransformError('thumbnail_error', 0, 0, $err);
}
return false;
case 'imext':
$im = new Imagick();
$im->readImage($params['srcPath']);
if (!$im->rotateImage(new ImagickPixel('white'), 360 - $rotation)) {
return new MediaTransformError('thumbnail_error', 0, 0, "Error rotating {$rotation} degrees");
}
$result = $im->writeImage($params['dstPath']);
if (!$result) {
return new MediaTransformError('thumbnail_error', 0, 0, "Unable to write image to {$params['dstPath']}");
}
return false;
default:
return new MediaTransformError('thumbnail_error', 0, 0, "{$scaler} rotation not implemented");
}
}
/**
* Generic wrapper function for a virus scanner program.
* This relies on the $wgAntivirus and $wgAntivirusSetup variables.
* $wgAntivirusRequired may be used to deny upload if the scan fails.
*
* @param string $file pathname to the temporary upload file
* @return mixed false if not virus is found, NULL if the scan fails or is disabled,
* or a string containing feedback from the virus scanner if a virus was found.
* If textual feedback is missing but a virus was found, this function returns true.
*/
public static function detectVirus($file)
{
global $wgAntivirus, $wgAntivirusSetup, $wgAntivirusRequired, $wgOut;
wfProfileIn(__METHOD__);
if (!$wgAntivirus) {
wfDebug(__METHOD__ . ": virus scanner disabled\n");
wfProfileOut(__METHOD__);
return null;
}
if (!$wgAntivirusSetup[$wgAntivirus]) {
wfDebug(__METHOD__ . ": unknown virus scanner: {$wgAntivirus}\n");
$wgOut->wrapWikiMsg("<div class=\"error\">\n\$1\n</div>", array('virus-badscanner', $wgAntivirus));
wfProfileOut(__METHOD__);
return wfMessage('virus-unknownscanner')->text() . " {$wgAntivirus}";
}
# look up scanner configuration
$command = $wgAntivirusSetup[$wgAntivirus]['command'];
$exitCodeMap = $wgAntivirusSetup[$wgAntivirus]['codemap'];
$msgPattern = isset($wgAntivirusSetup[$wgAntivirus]['messagepattern']) ? $wgAntivirusSetup[$wgAntivirus]['messagepattern'] : null;
if (strpos($command, "%f") === false) {
# simple pattern: append file to scan
$command .= " " . wfEscapeShellArg($file);
} else {
# complex pattern: replace "%f" with file to scan
$command = str_replace("%f", wfEscapeShellArg($file), $command);
}
wfDebug(__METHOD__ . ": running virus scan: {$command} \n");
# execute virus scanner
$exitCode = false;
# NOTE: there's a 50 line workaround to make stderr redirection work on windows, too.
# that does not seem to be worth the pain.
# Ask me (Duesentrieb) about it if it's ever needed.
$output = wfShellExecWithStderr($command, $exitCode);
# map exit code to AV_xxx constants.
$mappedCode = $exitCode;
if ($exitCodeMap) {
if (isset($exitCodeMap[$exitCode])) {
$mappedCode = $exitCodeMap[$exitCode];
} elseif (isset($exitCodeMap["*"])) {
$mappedCode = $exitCodeMap["*"];
}
}
/* NB: AV_NO_VIRUS is 0 but AV_SCAN_FAILED is false,
* so we need the strict equalities === and thus can't use a switch here
*/
if ($mappedCode === AV_SCAN_FAILED) {
# scan failed (code was mapped to false by $exitCodeMap)
wfDebug(__METHOD__ . ": failed to scan {$file} (code {$exitCode}).\n");
$output = $wgAntivirusRequired ? wfMessage('virus-scanfailed', array($exitCode))->text() : null;
} elseif ($mappedCode === AV_SCAN_ABORTED) {
# scan failed because filetype is unknown (probably imune)
wfDebug(__METHOD__ . ": unsupported file type {$file} (code {$exitCode}).\n");
$output = null;
} elseif ($mappedCode === AV_NO_VIRUS) {
# no virus found
wfDebug(__METHOD__ . ": file passed virus scan.\n");
$output = false;
} else {
$output = trim($output);
if (!$output) {
$output = true;
#if there's no output, return true
} elseif ($msgPattern) {
$groups = array();
if (preg_match($msgPattern, $output, $groups)) {
if ($groups[1]) {
$output = $groups[1];
}
}
}
wfDebug(__METHOD__ . ": FOUND VIRUS! scanner feedback: {$output} \n");
}
wfProfileOut(__METHOD__);
return $output;
}
/**
* Swaps an embedded ICC profile for another, if found. Depends on exiftool, no-op if not installed.
* @param string $filepath File to be manipulated (will be overwritten)
* @param string $oldProfileString Exact name of color profile to look for (the one that will be replaced)
* @param string $profileFilepath ICC profile file to apply to the file
* @since 1.26
* @return bool
*/
public function swapICCProfile($filepath, $oldProfileString, $profileFilepath)
{
global $wgExiftool;
if (!$wgExiftool || !is_executable($wgExiftool)) {
return false;
}
$cmd = wfEscapeShellArg($wgExiftool, '-DeviceModelDesc', '-S', '-T', $filepath);
$output = wfShellExecWithStderr($cmd, $retval);
if ($retval !== 0 || strcasecmp(trim($output), $oldProfileString) !== 0) {
// We can't establish that this file has the expected ICC profile, don't process it
return false;
}
$cmd = wfEscapeShellArg($wgExiftool, '-overwrite_original', '-icc_profile<=' . $profileFilepath, $filepath);
$output = wfShellExecWithStderr($cmd, $retval);
if ($retval !== 0) {
$this->logErrorForExternalProcess($retval, $output, $cmd);
return false;
}
return true;
}
/**
* Transform an SVG file to PNG
* This function can be called outside of thumbnail contexts
* @param string $srcPath
* @param string $dstPath
* @param string $width
* @param string $height
* @param bool|string $lang Language code of the language to render the SVG in
* @throws MWException
* @return bool|MediaTransformError
*/
public function rasterize($srcPath, $dstPath, $width, $height, $lang = false)
{
global $wgSVGConverters, $wgSVGConverter, $wgSVGConverterPath;
$err = false;
$retval = '';
if (isset($wgSVGConverters[$wgSVGConverter])) {
if (is_array($wgSVGConverters[$wgSVGConverter])) {
// This is a PHP callable
$func = $wgSVGConverters[$wgSVGConverter][0];
$args = array_merge(array($srcPath, $dstPath, $width, $height, $lang), array_slice($wgSVGConverters[$wgSVGConverter], 1));
if (!is_callable($func)) {
throw new MWException("{$func} is not callable");
}
$err = call_user_func_array($func, $args);
$retval = (bool) $err;
} else {
// External command
$cmd = str_replace(array('$path/', '$width', '$height', '$input', '$output'), array($wgSVGConverterPath ? wfEscapeShellArg("{$wgSVGConverterPath}/") : "", intval($width), intval($height), wfEscapeShellArg($srcPath), wfEscapeShellArg($dstPath)), $wgSVGConverters[$wgSVGConverter]);
$env = array();
if ($lang !== false) {
$env['LANG'] = $lang;
}
wfProfileIn('rsvg');
wfDebug(__METHOD__ . ": {$cmd}\n");
$err = wfShellExecWithStderr($cmd, $retval, $env);
wfProfileOut('rsvg');
}
}
$removed = $this->removeBadFile($dstPath, $retval);
if ($retval != 0 || $removed) {
$this->logErrorForExternalProcess($retval, $err, $cmd);
return new MediaTransformError('thumbnail_error', $width, $height, $err);
}
return true;
}
/**
* @param $image File
* @param $dstPath string
* @param $dstUrl string
* @param $params array
* @param $flags int
* @return MediaTransformError|MediaTransformOutput|ThumbnailImage|TransformParameterError
*/
function doTransform($image, $dstPath, $dstUrl, $params, $flags = 0)
{
global $wgPdfProcessor, $wgPdfPostProcessor, $wgPdfHandlerDpi, $wgPdfHandlerJpegQuality;
$metadata = $image->getMetadata();
if (!$metadata) {
return $this->doThumbError(isset($params['width']) ? $params['width'] : null, isset($params['height']) ? $params['height'] : null, 'pdf_no_metadata');
}
if (!$this->normaliseParams($image, $params)) {
return new TransformParameterError($params);
}
$width = $params['width'];
$height = $params['height'];
$page = $params['page'];
if ($page > $this->pageCount($image)) {
return $this->doThumbError($width, $height, 'pdf_page_error');
}
if ($flags & self::TRANSFORM_LATER) {
return new ThumbnailImage($image, $dstUrl, $width, $height, false, $page);
}
if (!wfMkdirParents(dirname($dstPath), null, __METHOD__)) {
return $this->doThumbError($width, $height, 'thumbnail_dest_directory');
}
// Thumbnail extraction is very inefficient for large files.
// Provide a way to pool count limit the number of downloaders.
if ($image->getSize() >= 10000000.0) {
// 10MB
$work = new PoolCounterWorkViaCallback('GetLocalFileCopy', sha1($image->getName()), array('doWork' => function () use($image) {
return $image->getLocalRefPath();
}));
$srcPath = $work->execute();
} else {
$srcPath = $image->getLocalRefPath();
}
if ($srcPath === false) {
// could not download original
return $this->doThumbError($width, $height, 'filemissing');
}
$cmd = '(' . wfEscapeShellArg($wgPdfProcessor, "-sDEVICE=jpeg", "-sOutputFile=-", "-dFirstPage={$page}", "-dLastPage={$page}", "-r{$wgPdfHandlerDpi}", "-dBATCH", "-dNOPAUSE", "-q", $srcPath);
$cmd .= " | " . wfEscapeShellArg($wgPdfPostProcessor, "-depth", "8", "-quality", $wgPdfHandlerJpegQuality, "-resize", $width, "-", $dstPath);
$cmd .= ")";
wfProfileIn('PdfHandler');
wfDebug(__METHOD__ . ": {$cmd}\n");
$retval = '';
$err = wfShellExecWithStderr($cmd, $retval);
wfProfileOut('PdfHandler');
$removed = $this->removeBadFile($dstPath, $retval);
if ($retval != 0 || $removed) {
wfDebugLog('thumbnail', sprintf('thumbnail failed on %s: error %d "%s" from "%s"', wfHostname(), $retval, trim($err), $cmd));
return new MediaTransformError('thumbnail_error', $width, $height, $err);
} else {
return new ThumbnailImage($image, $dstUrl, $width, $height, $dstPath, $page);
}
}
