http://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=8268 --- Comment #12 from Frère Sébastien Marie <semarie-koha@latrappe.fr> --- (En réponse au commentaire 11)
Marking passed QA, I'll delay pushing, I'll wait for some feedback from semarie, just in case
The code seems globally ok: just 4 remarks. Some security remarks (in tools/export.pl): 1. a problem (common in koha): use of user-input in warn. An attacker can forge entries in log file (see CWE-93) (resume: if variable contains CRLF, the log file too... and the next line is forged: so who write in log ? koha or attacker ?)
warn "A suspicious attempt was made to download the db at '$filename' by ..."
2. about the regex for $filename verification
return unless ( ... && not $filename =~ m#(^\.\.|/)# );
The regex could be translated as: $filename should not: - start with '..' OR - contains '/' I don't understand the purpose of "^..", if '/' is forbidden; as you can't escape from directory without '/'. So I think m#/# is suffisent (please correct me if not). Some generals remarks: 3. the directory for backup is not consitent in differents files: in debian/templates/koha-conf-site.xml.in, the directory use for backupdir is:
<backupdir>/var/lib/koha/__KOHASITE__</backupdir>
in Makefile.PL, the directory seems to be in /var/spool :
'./skel/var/spool/koha' => { target => 'BACKUP_DIR', trimdir => -1 },
in debian/scripts/koha-dump:
[ -z "$backupdir" ] && backupdir="/var/spool/koha/$name"
4. in misc/cronjobs/backup.sh The lasts lines are for mail admin if ok, or mail admin if not ok.
[ -f $KOHA_BACKUP] && echo "$KOHA_BACKUP was successfully created." | mail kohaadmin -s $KOHA_BACKUP || echo "$KOHA_BACKUP was NOT successfully created." | mail kohaadmin -s $KOHA_BACKUP
First, there are *two* lines. I haven't test it, but it should be an error as "cmd_a && cmd_b ||" is not a valid shell expression. Should be one-line "cmd_a && cmd_b || cmd_c" Secondly, I'm not sure that the behaviour is correct. "cmd_a && cmd_b || cmd_c" could be expanded as: if cmd_a ; then if ! cmd_b ; then cmd_c fi else cmd_c fi so if cmd_b failed (echo "backup ok" | mail admin), the cmd_c (echo "backup err" | mail admin) will be run (and expected to failed too, as the first try). Proposed correction:
if [ -f $KOHA_BACKUP] ; then echo "$KOHA_BACKUP was successfully created." | mail kohaadmin -s $KOHA_BACKUP else echo "$KOHA_BACKUP was NOT successfully created." | mail kohaadmin -s $KOHA_BACKUP fi
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