Merge pull request #150 from beabee-communityrm/feat/jpeg-orientation

Add JPEG EXIF orientation rotation

content-controllers/image/image.controller.php

@@ -24,8 +24,43 @@ class ImageController implements ContentController
             case 17: $ext = 'ico';break;  // ico
             case 18: $ext = 'webp';break; // webp
 
-            case 2: //we clean up exif data of JPGs so GPS and other data is removed
+            case 2:
+                //we clean up exif data of JPGs so GPS and other data is removed
                 $res = imagecreatefromjpeg($tmpfile);
+
+                // rotate based on EXIF Orientation
+                $exif = exif_read_data($tmpfile);
+                if (!empty($exif['Orientation'])) {
+                    switch ($exif['Orientation']) {
+                        case 2:
+                            imageflip($res, IMG_FLIP_HORIZONTAL);
+                        case 1:
+                            // Nothing to do
+                            break;
+
+                        case 4:
+                            imageflip($res, IMG_FLIP_HORIZONTAL);
+                            // Also rotate
+                        case 3:
+                            $res = imagerotate($res, 180, 0);
+                            break;
+
+                        case 5:
+                            imageflip($res, IMG_FLIP_VERTICAL);
+                            // Also rotate
+                        case 6:
+                            $res = imagerotate($res, -90, 0);
+                            break;
+
+                        case 7:
+                            imageflip($res, IMG_FLIP_VERTICAL);
+                            // Also rotate
+                        case 8:
+                            $res = imagerotate($res, 90, 0);
+                            break;
+                    }
+                }
+
                 imagejpeg($res, $tmpfile, (defined('JPEG_COMPRESSION')?JPEG_COMPRESSION:90));
                 $ext = 'jpg';
             break;

rtfm/DOCKER.md

@@ -11,7 +11,7 @@ docker run -d -p 80:80 -e "TITLE=My own PictShare" -e "URL=http://localhost/" gh
 
 ### Building it
 ```bash
-docker build -t pictshare .
+docker build -t pictshare -f docker/Dockerfile .
 ```
 
 ### Quick start