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authorLukas Fleischer <archlinux@cryptocrack.de>2010-11-04 18:10:56 +0100
committerLukas Fleischer <archlinux@cryptocrack.de>2011-01-19 23:18:09 +0100
commitec0dfc27deb246ee7d7f19fd5290e499805869d2 (patch)
tree3f267383b82cc4ef34f3c3e51b10bb0795b948e6 /web/html
parent233f67b87edf0d063c0f56cece50c2f1bb1a31ff (diff)
downloadaurweb-ec0dfc27deb246ee7d7f19fd5290e499805869d2.tar.xz
Removed code for tarball extraction.
Automatic tarball extraction was vulnerable in different ways. Users should also only use source tarballs to build packages, so this has been removed completely. From now on, only the PKGBUILD is extracted in a secure manner. Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Diffstat (limited to 'web/html')
-rw-r--r--web/html/pkgsubmit.php60
1 files changed, 12 insertions, 48 deletions
diff --git a/web/html/pkgsubmit.php b/web/html/pkgsubmit.php
index 5ce945d..68f8634 100644
--- a/web/html/pkgsubmit.php
+++ b/web/html/pkgsubmit.php
@@ -28,34 +28,19 @@ if ($_COOKIE["AURSID"]):
$uid = uid_from_sid($_COOKIE['AURSID']);
- # Temporary dir to put the tarball contents
- $tempdir = UPLOAD_DIR . $uid . time();
-
if (!$error) {
- if (!@mkdir($tempdir)) {
- $error = __("Could not create incoming directory: %s.", $tempdir);
- } else {
- if (!@chdir($tempdir)) {
- $error = __("Could not change directory to %s.", $tempdir);
- } else {
- $tar = new Archive_Tar($_FILES['pfile']['tmp_name']);
- $extract = $tar->extract();
+ $tar = new Archive_Tar($_FILES['pfile']['tmp_name']);
- if (!$extract) {
- $error = __("Unknown file format for uploaded file.");
- }
+ # Extract PKGBUILD into a string
+ $pkgbuild_raw = '';
+ foreach ($tar->listContent() as $tar_file) {
+ if (preg_match('/^[^\/]+\/PKGBUILD$/', $tar_file['filename'])) {
+ $pkgbuild_raw = $tar->extractInString($tar_file['filename']);
+ break;
}
}
- }
-
- # Find the PKGBUILD
- if (!$error) {
- $pkgbuild = File_Find::search('PKGBUILD', $tempdir);
- if (count($pkgbuild)) {
- $pkgbuild = $pkgbuild[0];
- $pkg_dir = dirname($pkgbuild);
- } else {
+ if (empty($pkgbuild_raw)) {
$error = __("Error trying to unpack upload - PKGBUILD does not exist.");
}
}
@@ -67,14 +52,13 @@ if ($_COOKIE["AURSID"]):
# process PKGBUILD - remove line concatenation
#
$pkgbuild = array();
- $fp = fopen($pkg_dir."/PKGBUILD", "r");
$line_no = 0;
$lines = array();
$continuation_line = 0;
$current_line = "";
$paren_depth = 0;
- while (!feof($fp)) {
- $line = trim(fgets($fp));
+ foreach (split("\n", $pkgbuild_raw) as $line) {
+ $line = trim($line);
# Remove comments
$line = preg_replace('/\s*#.*/', '', $line);
@@ -109,7 +93,6 @@ if ($_COOKIE["AURSID"]):
$line_no++;
}
}
- fclose($fp);
# Now process the lines and put any var=val lines into the
# 'pkgbuild' array.
@@ -239,37 +222,18 @@ if ($_COOKIE["AURSID"]):
if (!@mkdir($incoming_pkgdir)) {
$error = __( "Could not create directory %s.", $incoming_pkgdir);
}
-
- rename($pkg_dir, $incoming_pkgdir . "/" . $pkg_name);
} else {
$error = __( "You are not allowed to overwrite the %h%s%h package.", "<b>", $pkg_name, "</b>");
}
}
- # Re-tar the package for consistency's sake
if (!$error) {
if (!@chdir($incoming_pkgdir)) {
$error = __("Could not change directory to %s.", $incoming_pkgdir);
}
- }
-
- if (!$error) {
- $tar = new Archive_Tar($pkg_name . '.tar.gz');
- $create = $tar->create(array($pkg_name));
-
- if (!$create) {
- $error = __("Could not re-tar");
- }
- }
-
- # Chmod files after everything has been done.
- if (!$error && !chmod_group($incoming_pkgdir)) {
- $error = __("Could not chmod directory %s.", $incoming_pkgdir);
- }
- # Whether it failed or not we can clean this out
- if (file_exists($tempdir)) {
- rm_rf($tempdir);
+ file_put_contents('PKGBUILD', $pkgbuild_raw);
+ rename($_FILES['pfile']['tmp_name'], $pkg_name . '.tar.gz');
}
# Update the backend database