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- <?php
- include '../auth.php';
- ?>
- <?php
- /*
- Title: Thumb.php
- URL: http://github.com/jamiebicknell/Thumb
- Author: Jamie Bicknell
- Twitter: @jamiebicknell
- */
- define('THUMB_CACHE', 'cache/'); // Path to cache directory (must be writeable)
- define('THUMB_CACHE_AGE', 86400); // Duration of cached files in seconds
- define('THUMB_BROWSER_CACHE', true); // Browser cache true or false
- define('SHARPEN_MIN', 12); // Minimum sharpen value
- define('SHARPEN_MAX', 28); // Maximum sharpen value
- define('ADJUST_ORIENTATION', true); // Auto adjust orientation for JPEG true or false
- define('JPEG_QUALITY', 100); // Quality of generated JPEGs (0 - 100; 100 being best)
- $src = isset($_GET['src']) ? $_GET['src'] : false;
- $size = isset($_GET['size']) ? str_replace(array('<', 'x'), '', $_GET['size']) != '' ? $_GET['size'] : 100 : 100;
- $crop = isset($_GET['crop']) ? max(0, min(1, $_GET['crop'])) : 1;
- $trim = isset($_GET['trim']) ? max(0, min(1, $_GET['trim'])) : 0;
- $zoom = isset($_GET['zoom']) ? max(0, min(1, $_GET['zoom'])) : 0;
- $align = isset($_GET['align']) ? $_GET['align'] : false;
- $sharpen = isset($_GET['sharpen']) ? max(0, min(100, $_GET['sharpen'])) : 0;
- $gray = isset($_GET['gray']) ? max(0, min(1, $_GET['gray'])) : 0;
- $ignore = isset($_GET['ignore']) ? max(0, min(1, $_GET['ignore'])) : 0;
- $path = parse_url($src);
- if (isset($path['scheme'])) {
- $base = parse_url('http://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI']);
- if (preg_replace('/^www\./i', '', $base['host']) == preg_replace('/^www\./i', '', $path['host'])) {
- $base = explode('/', preg_replace('/\/+/', '/', $base['path']));
- $path = explode('/', preg_replace('/\/+/', '/', $path['path']));
- $temp = $path;
- $part = count($base);
- foreach ($base as $k => $v) {
- if ($v == $path[$k]) {
- array_shift($temp);
- } else {
- if ($part - $k > 1) {
- $temp = array_pad($temp, 0 - (count($temp) + ($part - $k) - 1), '..');
- break;
- } else {
- $temp[0] = './' . $temp[0];
- }
- }
- }
- $src = implode('/', $temp);
- }
- }
- //$src = iconv('utf-8','big-5',$src);
- if (!extension_loaded('gd')) {
- die('GD extension is not installed');
- }
- if (!is_writable(THUMB_CACHE)) {
- die('Cache not writable');
- }
- if (isset($path['scheme']) || !file_exists($src)) {
- die('File cannot be found'.$src);
- }
- if (!in_array(strtolower(substr(strrchr($src, '.'), 1)), array('gif', 'jpg', 'jpeg', 'png'))) {
- die('File is not an image');
- }
- $file_salt = 'v1.0.5';
- $file_size = filesize($src);
- $file_time = filemtime($src);
- $file_date = gmdate('D, d M Y H:i:s T', $file_time);
- $file_type = strtolower(substr(strrchr($src, '.'), 1));
- $file_hash = md5($file_salt . ($src.$size.$crop.$trim.$zoom.$align.$sharpen.$gray.$ignore) . $file_time);
- $file_temp = THUMB_CACHE . $file_hash . '.img.txt';
- $file_name = basename(substr($src, 0, strrpos($src, '.')) . strtolower(strrchr($src, '.')));
- if (!file_exists(THUMB_CACHE . 'index.html')) {
- touch(THUMB_CACHE . 'index.html');
- }
- if (($fp = fopen(THUMB_CACHE . 'index.html', 'r')) !== false) {
- if (flock($fp, LOCK_EX)) {
- if (time() - THUMB_CACHE_AGE > filemtime(THUMB_CACHE . 'index.html')) {
- $files = glob(THUMB_CACHE . '*.img.txt');
- if (is_array($files) && count($files) > 0) {
- foreach ($files as $file) {
- if (time() - THUMB_CACHE_AGE > filemtime($file)) {
- unlink($file);
- }
- }
- }
- touch(THUMB_CACHE . 'index.html');
- }
- flock($fp, LOCK_UN);
- }
- fclose($fp);
- }
- if (THUMB_BROWSER_CACHE && (isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) || isset($_SERVER['HTTP_IF_NONE_MATCH']))) {
- if ($_SERVER['HTTP_IF_MODIFIED_SINCE'] == $file_date && $_SERVER['HTTP_IF_NONE_MATCH'] == $file_hash) {
- header($_SERVER['SERVER_PROTOCOL'] . ' 304 Not Modified');
- die();
- }
- }
- if (!file_exists($file_temp)) {
- list($w0, $h0, $type) = getimagesize($src);
- $data = file_get_contents($src);
- if ($ignore && $type == 1) {
- if (preg_match('/\x00\x21\xF9\x04.{4}\x00(\x2C|\x21)/s', $data)) {
- header('Content-Type: image/gif');
- header('Content-Length: ' . $file_size);
- header('Content-Disposition: inline; filename="' . $file_name . '"');
- header('Last-Modified: ' . $file_date);
- header('ETag: ' . $file_hash);
- header('Accept-Ranges: none');
- if (THUMB_BROWSER_CACHE) {
- header('Cache-Control: max-age=604800, must-revalidate');
- header('Expires: ' . gmdate('D, d M Y H:i:s T', strtotime('+7 days')));
- } else {
- header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
- header('Expires: ' . gmdate('D, d M Y H:i:s T'));
- header('Pragma: no-cache');
- }
- die($data);
- }
- }
- $oi = imagecreatefromstring($data);
- if (function_exists('exif_read_data') && ADJUST_ORIENTATION && $type == 2) {
- // I know supressing errors is bad, but calling exif_read_data on invalid
- // or corrupted data returns a fatal error and there's no way to validate
- // the EXIF data before calling the function.
- $exif = @exif_read_data($src, EXIF);
- if (isset($exif['Orientation'])) {
- $degree = 0;
- $mirror = false;
- switch ($exif['Orientation']) {
- case 2:
- $mirror = true;
- break;
- case 3:
- $degree = 180;
- break;
- case 4:
- $degree = 180;
- $mirror = true;
- break;
- case 5:
- $degree = 270;
- $mirror = true;
- $w0 ^= $h0 ^= $w0 ^= $h0;
- break;
- case 6:
- $degree = 270;
- $w0 ^= $h0 ^= $w0 ^= $h0;
- break;
- case 7:
- $degree = 90;
- $mirror = true;
- $w0 ^= $h0 ^= $w0 ^= $h0;
- break;
- case 8:
- $degree = 90;
- $w0 ^= $h0 ^= $w0 ^= $h0;
- break;
- }
- if ($degree > 0) {
- $oi = imagerotate($oi, $degree, 0);
- }
- if ($mirror) {
- $nm = $oi;
- $oi = imagecreatetruecolor($w0, $h0);
- imagecopyresampled($oi, $nm, 0, 0, $w0 - 1, 0, $w0, $h0, -$w0, $h0);
- imagedestroy($nm);
- }
- }
- }
- list($w,$h) = explode('x', str_replace('<', '', $size) . 'x');
- $w = ($w != '') ? floor(max(8, min(1500, $w))) : '';
- $h = ($h != '') ? floor(max(8, min(1500, $h))) : '';
- if (strstr($size, '<')) {
- $h = $w;
- $crop = 0;
- $trim = 1;
- } elseif (!strstr($size, 'x')) {
- $h = $w;
- } elseif ($w == '' || $h == '') {
- $w = ($w == '') ? ($w0 * $h) / $h0 : $w;
- $h = ($h == '') ? ($h0 * $w) / $w0 : $h;
- $crop = 0;
- $trim = 1;
- }
- $trim_w = ($trim) ? 1 : ($w == '') ? 1 : 0;
- $trim_h = ($trim) ? 1 : ($h == '') ? 1 : 0;
- if ($crop) {
- $w1 = (($w0 / $h0) > ($w / $h)) ? floor($w0 * $h / $h0) : $w;
- $h1 = (($w0 / $h0) < ($w / $h)) ? floor($h0 * $w / $w0) : $h;
- if (!$zoom) {
- if ($h0 < $h || $w0 < $w) {
- $w1 = $w0;
- $h1 = $h0;
- }
- }
- } else {
- $w1 = (($w0 / $h0) < ($w / $h)) ? floor($w0 * $h / $h0) : floor($w);
- $h1 = (($w0 / $h0) > ($w / $h)) ? floor($h0 * $w / $w0) : floor($h);
- $w = floor($w);
- $h = floor($h);
- if (!$zoom) {
- if ($h0 < $h && $w0 < $w) {
- $w1 = $w0;
- $h1 = $h0;
- }
- }
- }
- $w = ($trim_w) ? (($w0 / $h0) > ($w / $h)) ? min($w, $w1) : $w1 : $w;
- $h = ($trim_h) ? (($w0 / $h0) < ($w / $h)) ? min($h, $h1) : $h1 : $h;
- if ($sharpen) {
- $matrix = array (
- array(-1, -1, -1),
- array(-1, SHARPEN_MAX - ($sharpen * (SHARPEN_MAX - SHARPEN_MIN)) / 100, -1),
- array(-1, -1, -1));
- $divisor = array_sum(array_map('array_sum', $matrix));
- }
- $x = strpos($align, 'l') !== false ? 0 : (strpos($align, 'r') !== false ? $w - $w1 : ($w - $w1) / 2);
- $y = strpos($align, 't') !== false ? 0 : (strpos($align, 'b') !== false ? $h - $h1 : ($h - $h1) / 2);
- $im = imagecreatetruecolor($w, $h);
- $bg = imagecolorallocate($im, 255, 255, 255);
- imagefill($im, 0, 0, $bg);
- switch ($type) {
- case 1:
- imagecopyresampled($im, $oi, $x, $y, 0, 0, $w1, $h1, $w0, $h0);
- if ($sharpen && version_compare(PHP_VERSION, '5.1.0', '>=')) {
- imageconvolution($im, $matrix, $divisor, 0);
- }
- if ($gray) {
- imagefilter($im, IMG_FILTER_GRAYSCALE);
- }
- imagegif($im, $file_temp);
- break;
- case 2:
- imagecopyresampled($im, $oi, $x, $y, 0, 0, $w1, $h1, $w0, $h0);
- if ($sharpen && version_compare(PHP_VERSION, '5.1.0', '>=')) {
- imageconvolution($im, $matrix, $divisor, 0);
- }
- if ($gray) {
- imagefilter($im, IMG_FILTER_GRAYSCALE);
- }
- imagejpeg($im, $file_temp, JPEG_QUALITY);
- break;
- case 3:
- imagefill($im, 0, 0, imagecolorallocatealpha($im, 0, 0, 0, 127));
- imagesavealpha($im, true);
- imagealphablending($im, false);
- imagecopyresampled($im, $oi, $x, $y, 0, 0, $w1, $h1, $w0, $h0);
- if ($sharpen && version_compare(PHP_VERSION, '5.1.0', '>=')) {
- $fix = imagecolorat($im, 0, 0);
- imageconvolution($im, $matrix, $divisor, 0);
- imagesetpixel($im, 0, 0, $fix);
- }
- if ($gray) {
- imagefilter($im, IMG_FILTER_GRAYSCALE);
- }
- imagepng($im, $file_temp);
- break;
- }
- imagedestroy($im);
- imagedestroy($oi);
- }
- header('Content-Type: image/' . $file_type);
- header('Content-Length: ' . filesize($file_temp));
- header('Content-Disposition: inline; filename="' . $file_name . '"');
- header('Last-Modified: ' . $file_date);
- header('ETag: ' . $file_hash);
- header('Accept-Ranges: none');
- if (THUMB_BROWSER_CACHE) {
- header('Cache-Control: max-age=604800, must-revalidate');
- header('Expires: ' . gmdate('D, d M Y H:i:s T', strtotime('+7 days')));
- } else {
- header('Cache-Control: no-store, no-cache, must-revalidate, max-age=0');
- header('Expires: ' . gmdate('D, d M Y H:i:s T'));
- header('Pragma: no-cache');
- }
- readfile($file_temp);
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