1 files changed, 76 insertions, 0 deletions
diff --git a/pages/thumbnail.php b/pages/thumbnail.php
new file mode 100644
index 000000000..3aad5969d
--- /dev/null
+++ b/pages/thumbnail.php
@@ -0,0 +1,76 @@
+<?php
+
+	/**
+	 * Tidypics Thumbnail
+	 * 
+	 */
+	
+	// Get file GUID
+	$file_guid = (int) get_input('file_guid');
+	
+	// Get file thumbnail size
+	$size = get_input('size');
+	// only 3 possibilities
+	if ($size != 'small' && $size != 'thumb') {
+		$size = 'large';
+	}
+	
+	$error_image = '';
+	switch ($size) {
+		case 'thumb':
+			$error_image = "image_error_thumb.png";
+			break;
+		case 'small':
+			$error_image = "image_error_small.png";
+			break;
+		case 'large':
+			$error_image = "image_error_large.png";
+			break;
+	}
+	
+	// Get file entity
+	$file = get_entity($file_guid);
+	if (!$file)
+		forward('mod/tidypics/graphics/' . $error_image);
+	
+	if ($file->getSubtype() != "image")
+		forward('mod/tidypics/graphics/' . $error_image);
+	
+	// Get filename
+	if ($size == "thumb") {
+		$thumbfile = $file->thumbnail;
+	} else if ($size == "small") {
+		$thumbfile = $file->smallthumb;
+	} else {
+		$thumbfile = $file->largethumb;
+	}
+	
+	if (!$thumbfile)
+		forward('mod/tidypics/graphics/' . $error_image);
+	
+	// create Elgg File object
+	$readfile = new ElggFile();
+	$readfile->owner_guid = $file->owner_guid;
+	$readfile->setFilename($thumbfile);
+	$contents = $readfile->grabFile();
+
+	// send error image if file could not be read
+	if (!$contents) {
+		forward('mod/tidypics/graphics/' . $error_image);
+	}
+	
+	// expires every 14 days
+	$expires = 14 * 60*60*24;
+
+	// overwrite header caused by php session code so images can be cached
+	$mime = $file->getMimeType();
+	header("Content-Type: $mime");
+	header("Content-Length: " . strlen($contents));
+	header("Cache-Control: public", true);
+	header("Pragma: public", true);
+	header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT', true);
+	
+	// Return the thumbnail and exit
+	echo $contents;
+	exit;
+	
+\ No newline at end of file