Tar plugin disabled by default

[bizou.git] / plugins / _disabled / tar / tar.php

diff --git a/plugins/_disabled/tar/tar.php b/plugins/_disabled/tar/tar.php
new file mode 100644 (file)
index 0000000..9d3a46f
--- /dev/null
+++ b/plugins/_disabled/tar/tar.php
@@ -0,0 +1,73 @@
+<?php
+/*
+    Bizou - a (french) KISS php image gallery
+    Copyright (C) 2010  Marc MAURICE
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU 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 General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+# do not enable recursive tars by default
+$TAR_FLAGS = "--no-recursion";
+
+# send content length for browsers to display the progress bar
+# note : won't work if the http server uses Chunked transfer encoding (http://en.wikipedia.org/wiki/Chunked_transfer_encoding)
+# probably the case with gzip content-encoding.
+# For this we need to tar files to /dev/null before the real tar
+$SEND_CONTENT_LENGTH = true;
+
+########################
+$bizouRootFromHere = '../..';
+require "$bizouRootFromHere/config.php";
+
+if (isset($_SERVER["PATH_INFO"])) {
+       $simplePath = $_SERVER["PATH_INFO"];
+} else {
+       $simplePath = '/';
+}
+
+if (strpos($simplePath, '..') !== false) die(".. found in url");
+
+$realDir = "$bizouRootFromHere/".IMAGES_DIR.$simplePath;
+
+if ( ! is_dir($realDir) ) {
+       header("HTTP/1.1 404 Not Found");
+       die("Directory Not Found");
+}
+
+# change to the parent directory
+chdir(dirname($realDir));
+
+$filesarg = basename($realDir);
+# same as escapeshellarg function but this supports utf8 regardless of locale
+$filesarg = "'".str_replace("'", "'\\''", $filesarg)."'";
+$filesarg = "$filesarg/*";
+
+# compute and send content-length header
+if ($SEND_CONTENT_LENGTH) {
+       $out = exec("tar $TAR_FLAGS --totals -cf /dev/null $filesarg 2>&1", $output, $ret);
+       preg_match('/^Total bytes written: ([0-9]+) /', $out, $matches);
+       $totalsize = $matches[1];
+
+       ($totalsize > 1000 and $ret === 0) or die("Could not tar: $filesarg. Try checking permissions.");
+
+       header("Content-Length: $totalsize");
+}
+
+# final step : stream the directory content via tar
+header('Content-Type: application/x-tar');
+header('Content-Disposition: attachment; filename="'.basename($realDir).'.tar"');
+
+passthru("tar $TAR_FLAGS -c $filesarg");
+
+?>