58 lines
1.8 KiB
PHP
58 lines
1.8 KiB
PHP
<?php
|
|
require_once('../../../lib/base.php');
|
|
|
|
function CroppedThumbnail($imgSrc,$thumbnail_width,$thumbnail_height) { //$imgSrc is a FILE - Returns an image resource.
|
|
//getting the image dimensions
|
|
list($width_orig, $height_orig) = getimagesize($imgSrc);
|
|
switch (strtolower(substr($imgSrc, strrpos($imgSrc, '.')+1))) {
|
|
case "jpeg":
|
|
case "jpg":
|
|
case "tiff":
|
|
$myImage = imagecreatefromjpeg($imgSrc);
|
|
break;
|
|
case "png":
|
|
$myImage = imagecreatefrompng($imgSrc);
|
|
break;
|
|
default:
|
|
exit();
|
|
}
|
|
$ratio_orig = $width_orig/$height_orig;
|
|
|
|
if ($thumbnail_width/$thumbnail_height > $ratio_orig) {
|
|
$new_height = $thumbnail_width/$ratio_orig;
|
|
$new_width = $thumbnail_width;
|
|
} else {
|
|
$new_width = $thumbnail_height*$ratio_orig;
|
|
$new_height = $thumbnail_height;
|
|
}
|
|
|
|
$x_mid = $new_width/2; //horizontal middle
|
|
$y_mid = $new_height/2; //vertical middle
|
|
|
|
$process = imagecreatetruecolor(round($new_width), round($new_height));
|
|
|
|
imagecopyresampled($process, $myImage, 0, 0, 0, 0, $new_width, $new_height, $width_orig, $height_orig);
|
|
$thumb = imagecreatetruecolor($thumbnail_width, $thumbnail_height);
|
|
imagecopyresampled($thumb, $process, 0, 0, ($x_mid-($thumbnail_width/2)), ($y_mid-($thumbnail_height/2)), $thumbnail_width, $thumbnail_height, $thumbnail_width, $thumbnail_height);
|
|
|
|
imagedestroy($process);
|
|
imagedestroy($myImage);
|
|
return $thumb;
|
|
}
|
|
|
|
// Check if we are a user
|
|
if( !OC_User::isLoggedIn()){
|
|
echo json_encode( array( 'status' => 'error', 'data' => array( 'message' => 'You need to log in.')));
|
|
exit();
|
|
}
|
|
$box_size = 200;
|
|
$img = $_GET['img'];
|
|
|
|
$tmp = OC::$CONFIG_DATADIRECTORY . $img;
|
|
|
|
header('Content-Type: image/png');
|
|
$image = CroppedThumbnail($tmp, $box_size, $box_size);
|
|
|
|
imagepng($image);
|
|
imagedestroy($image);
|
|
?>
|