Facilitating downloads for message media

download.php

@@ -0,0 +1,19 @@
+<?php
+/**
+ * Facilitates downloading a file
+ */
+
+if (!array_key_exists('file', $_GET) || !array_key_exists('filename', $_GET)) {
+	header('Location: '.$_SERVER['HTTP_REFERER']);
+	exit;
+}
+
+$file = urldecode($_GET['file']);
+$filename = $_GET['filename'];
+$headers = get_headers($file, 1);
+$mimetype = $headers['Content-Type'];
+
+header("Content-type: $mimetype");
+header("Content-disposition: attachment; filename=\"$filename\"");
+
+readfile($file);

single-message.php

@@ -39,15 +39,15 @@
 						<div class="message-download">
 							<h3>Download</h3>
 							<?php
+							$downloader = $theme->info('base_url').'/download.php?';
 							if (!empty($meta['video_url'])) {
 								$icon = $theme->Html->image('video.png', array(
 									'alt' => 'Video',
 									'parent' => true
 								));
 								echo $theme->Html->tag('a', $icon, array(
-									'href' => $meta['video_url'],
-									'title' => 'Download Video',
-									'target' => '_blank'
+									'href' => $downloader.'file='.urlencode($meta['video_url']).'&filename='.urlencode(get_the_title()),
+									'title' => 'Download Video'
 								));
 							}
 							if (!empty($meta['audio_url'])) {
@@ -56,9 +56,8 @@
 									'parent' => true
 								));
 								echo $theme->Html->tag('a', $icon, array(
-									'href' => $meta['audio_url'],
-									'title' => 'Download Audio',
-									'target' => '_blank'
+									'href' => $downloader.'file='.urlencode($meta['audio_url']).'&filename='.urlencode(get_the_title()),
+									'title' => 'Download Audio'
 								));
 							}
 							?>