Remove exif image rotation

Author: L1lle

Lib/BlobFileHandler.php

@@ -181,6 +181,9 @@ public function loadFromFile($filename) {
 			default: $this->error ("File type must be GIF, PNG, or JPG to resize");
 		}
 
+		// rotate source image based on exif-orientation
+		$this->fixImageRotation($filename);
+
 	}
 
 	public function loadFromString($string) {
@@ -300,4 +303,27 @@ public function getImageWith() {
 		return imagesx($this->resource);		
 	}
 
+	protected function fixImageRotation($filename) {
+
+		if (! function_exists("exif_read_data")) {
+			return;
+		}
+
+		$exif = exif_read_data($filename);
+
+		if (!empty($exif['Orientation'])) {
+			switch ($exif['Orientation']) {
+				case 3:
+					$this->resource = imagerotate($this->resource, 180, 0);
+					break;
+				case 6:
+					$this->resource = imagerotate($this->resource, -90, 0);
+					break;
+				case 8:
+					$this->resource = imagerotate($this->resource, 90, 0);
+					break;
+			}
+		}
+	}
+
 }

Model/Behavior/BlobFileBehavior.php

@@ -67,7 +67,7 @@ public function beforeSave(Model $model, $options = array()) {
 
 	public function isUploadedFileImage($model,$params) {
 
-	    $val = array_shift($params);
+		$val = array_shift($params);
 
 		if ( ! empty($val['name']) and empty($val['tmp_name'])) {
 			return false;
@@ -77,10 +77,10 @@ public function isUploadedFileImage($model,$params) {
 			return true; // allow empty value
 		}
 
-	    $fileHandler = new BlobFileHandler;
-	    $fileHandler->loadFromFile($val['tmp_name']);
+		$fileHandler = new BlobFileHandler;
+		$fileHandler->loadFromFile($val['tmp_name']);
 
-	    return $fileHandler->isImage();
+		return $fileHandler->isImage();
 	}
 
 }