/**
* @param string $imagePath - either a local absolute/relative path, or a remote URL (e.g. http://...flickr.com/.../ ). See SECURITY note above.
* @param array $opts (
* curl(boolean) = false,
* maxCurlSize(int in Mbytes),
* w(pixels),
* h(pixels),
* crop(boolean) = false,
* scale(boolean) = true,
* thumbnail(boolean) = false,
* maxOnly(boolean) = true, # Resize only when file is larger.
* canvasColor(string) = '#FFFFFF',
* resultDir = null,
* remoteDir = null,
* outputFilename(string) = false,
* cacheHttpMinutes(int) = 20,
* overwrite(boolean) - false,
* onlyCreateWhenNew(boolean) - true)
* @throws \Exception
* @return bool|mixed|string string new URL for resized image.
*/
public static function resize($imagePath, $opts = null)
{
$imagePath = urldecode($imagePath);
# start configuration
$resultDir = null;
if (!empty($opts['resultDir'])) {
$resultDir = $opts['resultDir'];
# path to your result Dir, must be writeable by web server
$resultDir = str_replace('/', DIRECTORY_SEPARATOR, $resultDir);
}
$remoteDir = null;
if (!empty($opts['remoteDir'])) {
$remoteDir = $opts['remoteDir'];
}
if (empty($remoteDir)) {
$remoteDir = $resultDir . 'remote/';
# path to the Dir you wish to download remote images into
}
$overwrite = false;
if (isset($opts['overwrite'])) {
$overwrite = $opts['overwrite'];
}
$onlyCreateWhenNew = true;
if (isset($opts['onlyCreateWhenNew'])) {
$onlyCreateWhenNew = $opts['onlyCreateWhenNew'];
}
$defaults = array('curl' => false, 'crop' => false, 'scale' => true, 'thumbnail' => false, 'maxOnly' => true, 'canvasColor' => '#FFFFFF', 'outputFilename' => false, 'resultDir' => $resultDir, 'remoteDir' => $remoteDir, 'quality' => 90, 'cacheHttpMinutes' => 20);
$opts = array_merge($defaults, $opts);
$path_to_convert = 'convert';
# this could be something like /usr/bin/convert or /opt/local/share/bin/convert
## you shouldn't need to configure anything else beyond this point
$purl = parse_url($imagePath);
$finfo = pathinfo($imagePath);
$ext_r = explode('.', $imagePath);
$ext = $ext_r[count($ext_r) - 1];
//if not using imagic, run the following code and return the new path immediately
if (!empty($opts['noImagick']) && $opts['noImagick']) {
if (file_exists($imagePath) == false) {
$imagePath = $_SERVER['DOCUMENT_ROOT'] . $imagePath;
if (file_exists($imagePath) == false) {
throw new \Exception("Image not found. (" . $imagePath . ")");
}
}
$filename = md5_file($imagePath);
if (false !== $opts['outputFilename']) {
$opts['outputFilename'] = str_replace('/', DIRECTORY_SEPARATOR, $opts['outputFilename']);
$newPath = $resultDir . $opts['outputFilename'];
} else {
$newPath = $resultDir . $filename . $ext;
}
if (move_uploaded_file($imagePath, $newPath)) {
return $newPath;
} else {
$e = new \Exception("Unable to move the uploaded file. Please check your Dir permission.");
throw $e;
}
}
# check for remote image..
if (isset($purl['scheme']) && ($purl['scheme'] == 'http' || $purl['scheme'] == 'https')) {
# grab the image, and cache it so we have something to work with..
list($filename) = explode('?', $finfo['basename']);
$local_filepath = $remoteDir . $filename;
$download_image = true;
if (file_exists($local_filepath)) {
if (filemtime($local_filepath) < strtotime('+' . $opts['cacheHttpMinutes'] . ' minutes')) {
$download_image = false;
}
}
if ($download_image == true) {
try {
if ($opts['curl'] == true) {
if (!empty($opts['maxCurlSize'])) {
if (ImageProcessor::grabSize($imagePath) <= $opts['maxCurlSize'] * 1024 * 1024) {
ImageProcessor::grabImage($imagePath, $local_filepath);
} else {
throw new \Exception("image too large");
}
} else {
ImageProcessor::grabImage($imagePath, $local_filepath);
}
}
$img = @file_get_contents($imagePath);
if (empty($img)) {
return "invalid image pathname";
} else {
file_put_contents($local_filepath, $img);
}
} catch (\Exception $e) {
throw new \Exception("ERROR: While doing image resize, got this error: " . $e->getMessage());
}
}
$imagePath = $local_filepath;
}
if (file_exists($imagePath) == false) {
$imagePath = $_SERVER['DOCUMENT_ROOT'] . $imagePath;
if (file_exists($imagePath) == false) {
throw new \Exception('image not found. (' . $imagePath . ')');
}
}
$w = 0;
if (isset($opts['w'])) {
$w = $opts['w'];
}
if (isset($opts['h'])) {
$h = $opts['h'];
}
$filename = md5_file($imagePath);
// If the user has requested an explicit outputFilename, do not use the cache directory.
if (false !== $opts['outputFilename']) {
$newPath = $resultDir . $opts['outputFilename'];
} else {
if (!empty($w) and !empty($h)) {
$newPath = $resultDir . $filename . '_w' . $w . '_h' . $h . (isset($opts['crop']) && $opts['crop'] == true ? "_cp" : "") . (isset($opts['scale']) && $opts['scale'] == true ? "_sc" : "") . '.' . $ext;
} elseif (!empty($w)) {
$newPath = $resultDir . $filename . '_w' . $w . '.' . $ext;
} elseif (!empty($h)) {
$newPath = $resultDir . $filename . '_h' . $h . '.' . $ext;
} else {
return false;
}
}
$create = true;
if ($onlyCreateWhenNew) {
if (file_exists($newPath) == true) {
$create = false;
$origFileTime = date("YmdHis", filemtime($imagePath));
$newFileTime = date("YmdHis", filemtime($newPath));
if ($newFileTime < $origFileTime) {
# Not using $opts['expire-time'] ??
$create = true;
}
}
} else {
if (!$overwrite) {
if (file_exists($newPath) == true) {
$newExt = substr(strrchr($newPath, '.'), 1);
$pos = strrpos($newPath, '.' . $newExt);
if ($pos !== false) {
$noExt = substr_replace($newPath, '', $pos, strlen('.' . $newExt));
$count = 1;
while (file_exists($noExt . '-' . $count . '.' . $newExt)) {
$count += 1;
}
$newPath = $noExt . '-' . $count . '.' . $newExt;
} else {
$noExt = $newPath;
$count = 1;
while (file_exists($noExt . '-' . $count)) {
$count += 1;
}
$newPath = $noExt . '-' . $count;
}
}
}
}
if ($create == true) {
if (!empty($w) and !empty($h)) {
list($width, $height) = getimagesize($imagePath);
if ($width > $height) {
$resize = $w;
if (true === $opts['crop']) {
$resize = "x" . $h;
}
} else {
$resize = "x" . $h;
if (true === $opts['crop']) {
$resize = $w;
}
}
if (!empty($opts['imagickProgressive']) && $opts['imagickProgressive']) {
$progressiveCommand = "-strip -interlace Plane";
} else {
$progressiveCommand = "";
}
if (true === $opts['scale']) {
$resize = $w . "x" . $h;
$cmd = $path_to_convert . " {$progressiveCommand} " . escapeshellarg($imagePath) . " -resize " . escapeshellarg($resize) . (true === $opts['crop'] ? "^ -background transparent -gravity center -extent " . escapeshellarg($resize) : "") . " -quality " . escapeshellarg($opts['quality']) . " " . escapeshellarg($newPath);
} else {
$cmd = $path_to_convert . " {$progressiveCommand} " . escapeshellarg($imagePath) . " -resize " . escapeshellarg($resize) . " -size " . escapeshellarg($w . "x" . $h) . " xc:" . escapeshellarg($opts['canvasColor']) . " +swap -gravity center -composite -quality " . escapeshellarg($opts['quality']) . " " . escapeshellarg($newPath);
}
} else {
if (self::isWindows()) {
$maxSign = "^>";
} else {
$maxSign = "\\>";
}
$cmd = $path_to_convert . " " . escapeshellarg($imagePath) . " -thumbnail " . (!empty($h) ? 'x' : '') . $w . "" . (isset($opts['maxOnly']) && $opts['maxOnly'] == true ? $maxSign : "") . " -quality " . escapeshellarg($opts['quality']) . " " . escapeshellarg($newPath);
}
exec($cmd, $output, $return_code);
if ($return_code == 127) {
$path_to_convert = '/usr/local/bin/convert';
# this could be something like /usr/bin/convert or /opt/local/share/bin/convert
$cmd = preg_replace('/convert/', $path_to_convert, $cmd, 1);
exec($cmd, $output, $return_code);
}
if ($return_code != 0) {
throw new \Exception("Tried to execute : {$cmd}, return code: {$return_code}, output: " . print_r($output, true));
}
}
# return cache file path
return $newPath;
}
