Images on public sharing get downscaled to increase use experience - this will speed up loading time

- adding keep aspect to core/ajax/preview.php
- remove duplicate method Preview::show()
- no more hard coded mimetype of preview
- remove .png from the preview urls
- keep old route preview.png for backwards compatibility
- aspect preserving previews are now cached

1 files changed, 7 insertions, 1 deletions

diff --git a/core/ajax/preview.php b/core/ajax/preview.php
index 526719e8a1b..d38043707ac 100644
--- a/core/ajax/preview.php
+++ b/core/ajax/preview.php
@@ -11,6 +11,7 @@ $file = array_key_exists('file', $_GET) ? (string)$_GET['file'] : '';
 $maxX = array_key_exists('x', $_GET) ? (int)$_GET['x'] : '36';
 $maxY = array_key_exists('y', $_GET) ? (int)$_GET['y'] : '36';
 $scalingUp = array_key_exists('scalingup', $_GET) ? (bool)$_GET['scalingup'] : true;
+$keepAspect = array_key_exists('a', $_GET) ? true : false;
 $always = array_key_exists('forceIcon', $_GET) ? (bool)$_GET['forceIcon'] : true;
 
 if ($file === '') {
@@ -20,6 +21,10 @@ if ($file === '') {
 	exit;
 }
 
+if ($keepAspect === true) {
+	$maxY = $maxX;
+}
+
 if ($maxX === 0 || $maxY === 0) {
 	//400 Bad Request
 	\OC_Response::setStatus(400);
@@ -36,9 +41,10 @@ try {
 		$preview->setMaxX($maxX);
 		$preview->setMaxY($maxY);
 		$preview->setScalingUp($scalingUp);
+		$preview->setKeepAspect($keepAspect);
 	}
 
-	$preview->show();
+	$preview->showPreview();
 } catch (\Exception $e) {
 	\OC_Response::setStatus(500);
 	\OC_Log::write('core', $e->getmessage(), \OC_Log::DEBUG);