added support for downloading images

2 files changed, 50 insertions, 7 deletions

diff --git a/pages/photos/image/download.php b/pages/photos/image/download.php
new file mode 100644
index 000000000..ef47b7638
--- /dev/null
+++ b/pages/photos/image/download.php
@@ -0,0 +1,41 @@
+<?php
+/**
+ * Download a photo
+ *
+ * @author Cash Costello
+ * @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License v2
+ */
+
+$guid = (int) get_input('guid');
+$image = get_entity($guid);
+
+$disposition = get_input('disposition', 'attachment');
+
+if ($image) {
+	$filename = $image->originalfilename;
+	$mime = $image->mimetype;
+
+	header("Content-Type: $mime");
+	header("Content-Disposition: $disposition; filename=\"$filename\"");
+
+	$contents = $image->grabFile();
+
+	if (empty($contents)) {
+		echo file_get_contents(dirname(dirname(__FILE__)) . "/graphics/image_error_large.png" );
+	} else {
+
+		// expires every 60 days
+		$expires = 60 * 60*60*24;
+
+		header("Content-Length: " . strlen($contents));
+		header("Cache-Control: public", true);
+		header("Pragma: public", true);
+		header('Expires: ' . gmdate('D, d M Y H:i:s', time() + $expires) . ' GMT', true);
+
+		echo $contents;
+	}
+
+	exit;
+} else {
+	register_error(elgg_echo("image:downloadfailed"));
+}
diff --git a/pages/photos/image/view.php b/pages/photos/image/view.php
index 22ccfb34d..f9157a900 100644
--- a/pages/photos/image/view.php
+++ b/pages/photos/image/view.php
@@ -34,13 +34,15 @@ if (elgg_instanceof($owner, 'group')) {
 elgg_push_breadcrumb($album->title, $album->getURL());
 elgg_push_breadcrumb($photo->title);
 
-// add download button to title menu
-elgg_register_menu_item('title', array(
-	'name' => 'download',
-	'href' => 'photos/download',
-	'text' => elgg_echo('image:download'),
-	'link_class' => 'elgg-button elgg-button-action',
-));
+if (elgg_get_plugin_setting('download_link', 'tidypics')) {
+	// add download button to title menu
+	elgg_register_menu_item('title', array(
+		'name' => 'download',
+		'href' => "photos/download/$photo_guid",
+		'text' => elgg_echo('image:download'),
+		'link_class' => 'elgg-button elgg-button-action',
+	));
+}
 
 $content = elgg_view_entity($photo, array('full_view' => true));