1 files changed, 41 insertions, 0 deletions
diff --git a/includes/tarball.php b/includes/tarball.php
new file mode 100644
index 0000000..737aefa
--- /dev/null
+++ b/includes/tarball.php
@@ -0,0 +1,41 @@
+<?php
+/*
+ * Copyright (C) 2009  Nick White
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+function return_tarball($name, $contents)
+{
+	require("Archive/Tar.php");
+
+	$mimetype = "application/x-tar";
+	$extension = "tar.bz2";
+
+	$timestamp = strftime('%F');
+
+	/* Use output buffering (ob_start and ob_end_flush) to ensure that the
+	 * tarball data sent to stdout doesn't interfere with the headers. */
+	ob_start();
+	header('Content-Type: ' . $mimetype);
+	header('Content-Disposition: attachment; filename="' . $name . '-' . $timestamp . '.' . $extension . '"');
+	header('Expires: 0');
+	header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+	header('Pragma: public');
+	ob_end_flush();
+
+	$tarball = new Archive_Tar("php://stdout", "bz2");
+
+	$tarball->create($contents);
+}