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authorLukas Fleischer <archlinux@cryptocrack.de>2012-03-19 23:18:48 +0100
committerLukas Fleischer <archlinux@cryptocrack.de>2012-03-19 23:29:58 +0100
commit1f36664e9f55b175472436973a238aa36bd58bb2 (patch)
tree6edfb49d7d8ba0369e88eabbf4e708ae96646816 /web/html
parent1e29bd2217f4320d3df156c448bf16aaeaec53d6 (diff)
downloadaurweb-1f36664e9f55b175472436973a238aa36bd58bb2.tar.xz
web/html/pkgsubmit.php: Revamp tarball validation
* Reorder checks. * Use simple string functions instead of regular expressions. * Check for type flags before validating paths. The latter ensures we don't treat tarball keywords/flags as directories. This avoids problems with bsdtar inserting PaxHeader attributes into the archive which look something like the following to Archive_Tar: PaxHeader/xcursor-protozoa xcursor-protozoa/ xcursor-protozoa/PaxHeader/PKGBUILD xcursor-protozoa/PKGBUILD This only occurs on certain filesystems (e.g. jfs), but the tarball is by no means invalid. When extracted, it will only contain the PKGBUILD within a single subdirectory. Addresses FS#28802. Thanks-to: Dave Reisner <dreisner@archlinux.org> Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Diffstat (limited to 'web/html')
-rw-r--r--web/html/pkgsubmit.php26
1 files changed, 14 insertions, 12 deletions
diff --git a/web/html/pkgsubmit.php b/web/html/pkgsubmit.php
index 75a4b69..566890b 100644
--- a/web/html/pkgsubmit.php
+++ b/web/html/pkgsubmit.php
@@ -65,23 +65,25 @@ if ($uid):
$pkgbuild_raw = '';
$dircount = 0;
foreach ($tar->listContent() as $tar_file) {
- if (preg_match('/^[^\/]+\/PKGBUILD$/', $tar_file['filename'])) {
- $pkgbuild_raw = $tar->extractInString($tar_file['filename']);
+ if ($tar_file['typeflag'] == 0) {
+ if (strchr($tar_file['filename'], '/') === false) {
+ $error = __("Error - source tarball may not contain files outside a directory.");
+ break;
+ }
+ elseif (substr($tar_file['filename'], -9) == '/PKGBUILD') {
+ $pkgbuild_raw = $tar->extractInString($tar_file['filename']);
+ }
}
- elseif (preg_match('/^[^\/]+\/$/', $tar_file['filename'])) {
- if (++$dircount > 1) {
+ elseif ($tar_file['typeflag'] == 5) {
+ if (substr_count($tar_file['filename'], "/") > 1) {
+ $error = __("Error - source tarball may not contain nested subdirectories.");
+ break;
+ }
+ elseif (++$dircount > 1) {
$error = __("Error - source tarball may not contain more than one directory.");
break;
}
}
- elseif (preg_match('/^[^\/]+$/', $tar_file['filename'])) {
- $error = __("Error - source tarball may not contain files outside a directory.");
- break;
- }
- elseif (preg_match('/^[^\/]+\/[^\/]+\//', $tar_file['filename'])) {
- $error = __("Error - source tarball may not contain nested subdirectories.");
- break;
- }
}
if (!$error && empty($pkgbuild_raw)) {