initial commit

api.php

@@ -0,0 +1,98 @@
+<?php
+$type = $_GET['type'];
+$timeout = $_GET['timeout'];
+$viewport = $_GET['viewport'];
+$js = $_GET['js'];
+$resizewidth = $_GET['width'];
+$cache = preg_replace("/[^A-Za-z0-9 ]/", '', $_GET['cache']);
+$onfail = rawurldecode($_GET['onfail']);
+if(!$onfail)
+	$onfail = 'https://http2pic.haschek.at/img/failed.jpg';
+$url = rawurldecode($_GET['url']);
+if(isBase64($url))
+	$url = base64_decode($url);
+
+if(!$timeout)
+	$timeout = 10;
+
+if($viewport)
+{
+	$a=explode('x', $viewport);
+	$w = $a[0];
+	$h = $a[1];
+	if($w)
+		$vp = "--width $w ";
+	if($h)
+		$vp.= "--height $h ";
+
+}	
+
+if($js=='no')
+	$jsp = '-n ';
+
+switch ($type) {
+	case 'png':
+		$ft = $type;
+		header('Content-Type: image/png');
+	break;
+
+	case 'jpg':
+	case 'jpeg':
+	default:
+		$ft = 'jpg';
+		header('Content-Type: image/jpeg');
+}
+
+
+
+if(!$cache)
+	$cache = md5(time().rand(1,2000));
+$hash = $cache.'-'.preg_replace("/[^A-Za-z0-9 ]/", '', $url).'.'.$ft;
+
+
+$file = __DIR__.'/cache/'.$hash;
+if(!file_exists($file))
+	shell_exec('timeout '.$timeout.' /usr/sbin/wkhtmltoimage '.$vp.$jsp.'-f '.$ft.' '.$url.' '.$file);
+
+if(filesize($file)==0 && $onfail)
+	@file_put_contents($file, file_get_contents($onfail));
+
+if($resizewidth)
+{
+	list($width_orig, $height_orig) = getimagesize($file);
+	if($width_orig!=$resizewidth) 
+	{
+		$ratio_orig = $width_orig/$height_orig;
+		$height = $resizewidth/$ratio_orig;
+
+		// resample
+		$image_p = imagecreatetruecolor($resizewidth, $height);
+		$image = imagecreatefromjpeg($file);
+		imagecopyresampled($image_p, $image, 0, 0, 0, 0, $resizewidth, $height, $width_orig, $height_orig);
+		imagejpeg($image_p, $file, 100);
+	}
+}
+
+
+if($ft=='jpg')
+{
+	$res = imagecreatefromjpeg($file);
+	imagejpeg($res,NULL,100);
+}
+else if($ft=='png')
+{
+	$res = imagecreatefrompng($file);
+	imagepng($res,NULL,9);
+}
+
+
+imagedestroy($res);
+
+function isBase64($data)
+{
+	if ( base64_encode(base64_decode($data, true)) === $data){
+    return true;
+	} else {
+		return false;
+	}
+}