Added support for MP4 uploads and gif to mp4 conversions

README.md

@@ -6,6 +6,7 @@ PictShare is an multi lingual, open source image hosting service with a simple r
 
 UPDATES
 ========
+- Nov. 23: Added support for MP4 uploads and conversion from gif to mp4
 - Nov. 12: Created new git project: [Pictshare stats](https://github.com/chrisiaut/pictshare_stats)
 - Nov. 07: Added 9 new (instagram-like) filters
 - Nov. 06: Master delete code. One code to delete them all
@@ -48,6 +49,8 @@ If there is some option that's not recognized by PictShare it's simply ignored,
 **Resizing**   |  |  | 
 <width>**x**<height> | -none-			| https://pictshare.net/20x20/b260e36b60.jpg | ![Resized](https://pictshare.net/20x20/b260e36b60.jpg)
 forcesize      | -none-				| https://pictshare.net/100x400/forcesize/b260e36b60.jpg | ![Forced size](https://pictshare.net/100x400/forcesize/b260e36b60.jpg)
+**GIF to mp4**   |  |  | 
+mp4           | -none-             | https://www.pictshare.net/mp4/102687fe65.gif | Converts gif to mp4 and displays as that. Note that you can't include that mp4 in an img tag
 **Rotating**   |  |  | 
 left		   | -none-				| https://pictshare.net/left/b260e36b60.jpg | ![Rotated left](https://pictshare.net/200/left/b260e36b60.jpg)
 right		   | -none-				| https://pictshare.net/right/b260e36b60.jpg | ![Rotated right](https://pictshare.net/200/right/b260e36b60.jpg)
@@ -137,6 +140,7 @@ If you access the image with the code like this: ```https://www.pictshare.net/ch
 - Make sure you have PHP5 GD libraries installed: ```apt-get install php5-gd```
 - Unpack the [PictShare zip](https://github.com/chrisiaut/pictshare/archive/master.zip)
 - Rename /inc/example.config.inc.php to /inc/config.inc.php
+- ```chmod +x bin/ffmpeg``` if you want to be able to use mp4 uploads
 - (optional) You can and should put a [nginx](https://www.nginx.com/) proxy before the Apache server. That thing is just insanely fast with static content like images.
 - (optional) To secure your traffic I'd highly recommend getting an [SSL Cert](https://letsencrypt.org/) for your server if you don't already have one.
 
@@ -166,7 +170,7 @@ server {
         fastcgi_param PATH_INFO $fastcgi_script_name;
     }
 
-    location ~ /(upload|tmp) {
+    location ~ /(upload|tmp|bin) {
        deny all;
        return 404;
     }

inc/core.php

@@ -150,8 +150,22 @@ function renderImage($data)
             imagepng($im);
         break;
         case 'gif': 
-            header ("Content-type: image/gif");
+            
-            $im = imagecreatefromgif($path);
+            if($data['mp4'])
+            {
+                header("Content-Type: video/mp4");
+                readfile($pm->gifToMP4($path));
+            }
+                
+            else
+            {
+                header ("Content-type: image/gif");
+                readfile($path);
+            }
+                
+        break;
+        case 'mp4':
+            header("Content-Type: video/mp4");
             readfile($path);
         break;
     }

models/pictsharemodel.php

@@ -44,6 +44,8 @@ class PictshareModel extends Model
 			
 			if($this->isImage($el))
 				$data['hash']=$el;
+			else if($el=='mp4')
+				$data['mp4'] = 1;
 			else if($this->isSize($el))
 				$data['size'] = $el;
 			else if($this->isRotation($el))
@@ -68,6 +70,12 @@ class PictshareModel extends Model
 			return false;
 		}
 			
+		if($data['mp4'])
+		{
+			$hash = $data['hash'];
+			if(!$hash || $this->getTypeOfHash($hash)!='gif')
+				unset($data['mp4']);
+		}
 		
 		return $data;
 	}
@@ -257,10 +265,20 @@ class PictshareModel extends Model
 		if(count($arr)>1)
 		{
 			$a2 = explode('/', $arr[0]);
-			return $a2[1];
+			$type = $a2[1];
 		}
-		$a2 = explode('/', $type);
+		else
-			return $a2[1];
+		{
+			$a2 = explode('/', $type);
+			$type = $a2[1];
+		}
+
+		if($type=='mp4' && !$this->isProperMP4($url))
+			return false;
+		
+
+		return $type;
+
 	}
 
 	function isTypeAllowed($type)
@@ -278,19 +296,19 @@ class PictshareModel extends Model
 			
 			case 'image/gif':	return 'gif';
 			case 'gif':			return 'gif';
+
+			case 'mp4':			return 'mp4';
+
 			default: return false;
 		}
 	}
 
 	function uploadImageFromURL($url)
 	{
-		
-				
 		$type = $this->getTypeOfFile($url);
 		$type = $this->isTypeAllowed($type);
-			
-		$dup_id = $this->isDuplicate($url);
 
+		$dup_id = $this->isDuplicate($url);
 		if($dup_id)
 		{
 			$hash = $dup_id;
@@ -400,7 +418,10 @@ class PictshareModel extends Model
 
 				if($data['status']=='OK')
 				{
-					$o.= '<h2>'.$this->translate(4).' '.++$i.'</h2><a target="_blank" href="'.DOMAINPATH.$data['hash'].'"><img src="'.DOMAINPATH.'300/'.$data['hash'].'" /></a><br/>';
+					if($data['type']=='mp4')
+						$o.= '<h2>'.$this->translate(4).' '.++$i.'</h2><a target="_blank" href="'.DOMAINPATH.$data['hash'].'">'.$data['hash'].'</a><br/>';
+					else
+						$o.= '<h2>'.$this->translate(4).' '.++$i.'</h2><a target="_blank" href="'.DOMAINPATH.$data['hash'].'"><img src="'.DOMAINPATH.'300/'.$data['hash'].'" /></a><br/>';
 				}
 			}
 		}
@@ -571,4 +592,51 @@ class PictshareModel extends Model
 	
 		return $type;
 	}
+
+	function getTypeOfHash($hash)
+	{
+	    $base_path = ROOT.DS.'upload'.DS.$hash.DS;
+	    $path = $base_path.$hash;
+	    $type = $this->isTypeAllowed($this->getTypeOfFile($path));
+
+	    return $type;
+	}
+	
+	function isProperMP4($filename)
+	{
+		$filename = '/var/www/outfile.mp4';
+		$file = escapeshellarg($filename);
+		$tmp = ROOT.DS.'tmp'.DS.md5(time()+rand(1,10000)).'.'.rand(1,10000).'.log';
+		$bin = escapeshellcmd(ROOT.DS.'bin'.DS.'ffmpeg');
+		
+		$cmd = "$bin -i $file > $tmp 2>> $tmp";
+
+		system($cmd);
+
+		$answer = file($tmp);
+		unlink($tmp);
+		$ismp4 = false;
+		if(is_array($answer))
+		foreach($answer as $line)
+		{
+			$line = trim($line);
+			if(strpos($line,'Duration: 00:00:00')) return false;
+			if(strpos($line, 'Video: h264'))
+				$ismp4 = true;
+		}
+
+		return $ismp4;
+	}
+
+	function gifToMP4($gifpath)
+	{
+		$bin = escapeshellcmd(ROOT.DS.'bin'.DS.'ffmpeg');
+		$file = escapeshellarg($gifpath);
+		$mp4file = $gifpath.'.mp4';
+		$cmd = "$bin -f gif -i $file $file.mp4";
+
+		system($cmd);
+
+		return $mp4file;
+	}
 }