Enable support for converting pngs to jpgs (#80)

* Enable support for converting pngs to jpgs

Due to BOSO only supporting pdf and jpg we could only allow users to upload those formats.
With this change users can start to upload png files and it will be converted to jpg.

* Fix comment

complete/completeprocessing.php

@@ -39,7 +39,7 @@
             $uploadErrMessage = "";
             $sqlErr = "";
 
-            $okayFileTypes = ['pdf', 'jpeg', 'jpg'];
+            $okayFileTypes = ['pdf', 'jpeg', 'jpg', 'png'];
             $maxFileSize = 2 * 1024 * 1024; // MB * KB * B
 
             // Make sure it actually uploaded
@@ -58,7 +58,7 @@
 
             // Allow certain file formats
             if (!in_array(strtolower($FileType), $okayFileTypes)) {
-                $uploadErrMessage = $uploadErrMessage . "Only PDFs and JPEGs are allowed<br>";
+                $uploadErrMessage = $uploadErrMessage . "Only PDFs, JPEGs, and PNGs are allowed<br>";
                 $isUploadError = true;
             }
 
@@ -75,6 +75,20 @@
                 if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
                     //echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has been uploaded.<br>";
                     $receipt = str_replace(' ', '%20', $target_file_save);
+
+            	    // Convert png to jpg
+            	    if (strtolower($FileType) == 'png') {
+			$im = new Imagick($target_file);	
+			$im->setImageFormat('jpg');
+
+			$delete_file = $target_file;
+			$target_file = str_replace('png', 'jpg', $target_file);		
+
+			$im->writeImage($target_file);
+
+			$receipt = str_replace('png', 'jpg', $receipt);		
+			unlink($delete_file);
+            	    }
                 } else {
                     $uploadErrMessage = $uploadErrMessage . "Could not transfer file to destination on server<br>";
                     $isUploadError = true;