101 lines
2.0 KiB
PHP
101 lines
2.0 KiB
PHP
<?php
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$type = $_GET['type'];
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$timeout = $_GET['timeout'];
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$viewport = $_GET['viewport'];
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$js = $_GET['js'];
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$resizewidth = $_GET['width'];
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$cache = preg_replace("/[^A-Za-z0-9 ]/", '', $_GET['cache']);
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$onfail = rawurldecode($_GET['onfail']);
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if(!$onfail)
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$onfail = 'https://http2pic.haschek.at/img/failed.jpg';
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$url = rawurldecode($_GET['url']);
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if(isBase64($url))
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$url = base64_decode($url);
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if(!$timeout || !is_numeric($timeout) || ($timeout>30 || $timeout<1))
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$timeout = 10;
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if($viewport)
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{
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$a=explode('x', $viewport);
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$w = $a[0];
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$h = $a[1];
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if($w)
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$vp = "--width $w ";
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if($h)
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$vp.= "--height $h ";
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}
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if($js=='no')
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$jsp = '-n ';
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switch ($type) {
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case 'png':
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$ft = $type;
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header('Content-Type: image/png');
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break;
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case 'jpg':
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case 'jpeg':
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default:
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$ft = 'jpg';
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header('Content-Type: image/jpeg');
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}
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$hash = $cache.'-'.preg_replace("/[^A-Za-z0-9 ]/", '', $url).'.'.$ft;
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if(!$cache)
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$hash = md5(time().rand(1,2000)).$hash;
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if(!is_dir(__DIR__.'/cache/'))
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mkdir(__DIR__.'/cache/');
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$file = __DIR__.'/cache/'.$hash;
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if(!file_exists($file))
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shell_exec('timeout '.$timeout.' /usr/sbin/wkhtmltoimage '.escapeshellcmd($vp.$jsp.'-f '.$ft.' '.$url.' '.$file));
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if(filesize($file)==0 && $onfail)
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@file_put_contents($file, file_get_contents($onfail));
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if($resizewidth)
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{
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list($width_orig, $height_orig) = getimagesize($file);
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if($width_orig!=$resizewidth)
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{
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$ratio_orig = $width_orig/$height_orig;
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$height = $resizewidth/$ratio_orig;
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// resample
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$image_p = imagecreatetruecolor($resizewidth, $height);
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$image = imagecreatefromjpeg($file);
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imagecopyresampled($image_p, $image, 0, 0, 0, 0, $resizewidth, $height, $width_orig, $height_orig);
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imagejpeg($image_p, $file, 100);
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}
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}
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if($ft=='jpg')
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{
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$res = imagecreatefromjpeg($file);
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imagejpeg($res,NULL,100);
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}
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else if($ft=='png')
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{
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$res = imagecreatefrompng($file);
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imagepng($res,NULL,9);
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}
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imagedestroy($res);
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if(!$cache)
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unlink($file);
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function isBase64($data)
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{
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if ( base64_encode(base64_decode($data, true)) === $data)
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return true;
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else
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return false;
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} |