Remove 'convert_manual_orient' functionality.

It was supposed to help in case the user had an unspecified imagemagik version that was old in 2013...

inc/config.php

@@ -788,8 +788,7 @@
 	// Strip EXIF metadata from JPEG files.
 	$config['strip_exif'] = false;
 	// Use the command-line `exiftool` tool to strip EXIF metadata without decompressing/recompressing JPEGs.
-	// Ignored when $config['redraw_image'] is true. This is also used to adjust the Orientation tag when
+	// Ignored when $config['redraw_image'] is true.
-	//  $config['strip_exif'] is false and $config['convert_manual_orient'] is true.
 	$config['use_exiftool'] = false;
 	
 	// Redraw the image to strip any excess data (commonly ZIP archives) WARNING: This might strip the
@@ -802,11 +801,6 @@
 	// this basically does the same thing as $config['redraw_image']. (If $config['redraw_image'] is enabled,
 	// this value doesn't matter as $config['redraw_image'] attempts to correct orientation too.)
 	$config['convert_auto_orient'] = false;
-	
-	// Is your version of ImageMagick or GraphicsMagick old? Older versions may not include the -auto-orient
-	// switch. This is a manual replacement for that switch. This is independent from the above switch;
-	// -auto-orrient is applied when thumbnailing too.
-	$config['convert_manual_orient'] = false;
 
 	// Regular expression to check for an XSS exploit with IE 6 and 7. To disable, set to false.
 	// Details: https://github.com/savetheinternet/Tinyboard/issues/20

inc/image.php

@@ -324,12 +324,7 @@ class ImageConvert extends ImageBase {
 					error(_('Failed to resize image!'), null, $error);
 				}
 			} else {
-				if ($config['convert_manual_orient'] && ($this->format == 'jpg' || $this->format == 'jpeg'))
+				$convert_args = &$config['convert_args'];
-					$convert_args = str_replace('-auto-orient', ImageConvert::jpeg_exif_orientation($this->src), $config['convert_args']);
-				elseif ($config['convert_manual_orient'])
-					$convert_args = str_replace('-auto-orient', '', $config['convert_args']);
-				else
-					$convert_args = &$config['convert_args'];
 
 				if (($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
 					sprintf($convert_args,
@@ -348,12 +343,8 @@ class ImageConvert extends ImageBase {
 				}
 			}
 		} else {
-			if ($config['convert_manual_orient'] && ($this->format == 'jpg' || $this->format == 'jpeg'))
+			$convert_args = &$config['convert_args'];
-				$convert_args = str_replace('-auto-orient', ImageConvert::jpeg_exif_orientation($this->src), $config['convert_args']);
+
-			elseif ($config['convert_manual_orient'])
-				$convert_args = str_replace('-auto-orient', '', $config['convert_args']);
-			else
-				$convert_args = &$config['convert_args'];
 			if (($error = shell_exec_error(($this->gm ? 'gm ' : '') . 'convert ' .
 				sprintf($convert_args,
 					$this->width,
@@ -380,69 +371,6 @@ class ImageConvert extends ImageBase {
 			}
 		}
 	}
-
-	// For when -auto-orient doesn't exist (older versions)
-	static public function jpeg_exif_orientation($src, $exif = false) {
-		if (!$exif) {
-			$exif = @exif_read_data($src);
-			if (!isset($exif['Orientation']))
-				return false;
-		}
-		switch($exif['Orientation']) {
-			case 1:
-				// Normal
-				return false;
-			case 2:
-				// 888888
-				//     88
-				//   8888
-				//     88
-				//     88
-
-				return '-flop';
-			case 3:
-
-				//     88
-				//     88
-				//   8888
-				//     88
-				// 888888
-
-				return '-flip -flop';
-			case 4:
-				// 88
-				// 88
-				// 8888
-				// 88
-				// 888888
-
-				return '-flip';
-			case 5:
-				// 8888888888
-				// 88  88
-				// 88
-
-				return '-rotate 90 -flop';
-			case 6:
-				// 88
-				// 88  88
-				// 8888888888
-
-				return '-rotate 90';
-			case 7:
-				//         88
-				//     88  88
-				// 8888888888
-
-				return '-rotate "-90" -flop';
-			case 8:
-				// 8888888888
-				//     88  88
-				//         88
-
-				return '-rotate "-90"';
-		}
-	}
 }
 
 class ImagePNG extends ImageBase {

post.php

@@ -999,27 +999,9 @@ if (isset($_POST['delete'])) {
 						$exif = @exif_read_data($file['tmp_name']);
 						$gm = in_array($config['thumb_method'], array('gm', 'gm+gifsicle'));
 						if (isset($exif['Orientation']) && $exif['Orientation'] != 1) {
-							if ($config['convert_manual_orient']) {
+							$error = shell_exec_error(($gm ? 'gm ' : '') . 'convert ' .
-								$error = shell_exec_error(($gm ? 'gm ' : '') . 'convert ' .
+									escapeshellarg($file['tmp_name']) . ' -auto-orient ' . escapeshellarg($upload));
-									escapeshellarg($file['tmp_name']) . ' ' .
+
-									ImageConvert::jpeg_exif_orientation(false, $exif) . ' ' .
-									($config['strip_exif'] ? '+profile "*"' :
-										($config['use_exiftool'] ? '' : '+profile "*"')
-									) . ' ' .
-									escapeshellarg($file['tmp_name']));
-								if ($config['use_exiftool'] && !$config['strip_exif']) {
-									if ($exiftool_error = shell_exec_error(
-										'exiftool -overwrite_original -q -q -orientation=1 -n ' .
-											escapeshellarg($file['tmp_name'])))
-										error(_('exiftool failed!'), null, $exiftool_error);
-								} else {
-									// TODO: Find another way to remove the Orientation tag from the EXIF profile
-									// without needing `exiftool`.
-								}
-							} else {
-								$error = shell_exec_error(($gm ? 'gm ' : '') . 'convert ' .
-										escapeshellarg($file['tmp_name']) . ' -auto-orient ' . escapeshellarg($upload));
-							}
 							if ($error)
 								error(_('Could not auto-orient image!'), null, $error);
 							$size = @getimagesize($file['tmp_name']);