Add protection against input containing single-quotes (e.g., i18n-users).

This commit is contained in:
Devin Teske 2014-03-14 03:37:08 +00:00
parent 863bb16483
commit b00c7d1aa2
Notes: svn2git 2020-12-20 02:59:44 +00:00
svn path=/head/; revision=263149
2 changed files with 97 additions and 35 deletions

View File

@ -156,10 +156,17 @@ f_group_add()
case "$mtag" in
X) # Add/Exit
local cmd="pw groupadd -n '$group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$group_gid'"
local var
for var in gid members name; do
local _group_$var
eval f_shell_escape \
\"\$group_$var\" _group_$var
done
local cmd="pw groupadd -n '$_group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$_group_gid'"
[ "$group_members" ] &&
cmd="$cmd -M '$group_members'"
cmd="$cmd -M '$_group_members'"
# Execute the command (break on success)
if [ "$group_password_disable" ]; then
@ -196,10 +203,16 @@ f_group_add()
esac
done
else
local var
for var in gid members name; do
local _group_$var
eval f_shell_escape \"\$group_$var\" _group_$var
done
# Form the command
local cmd="pw groupadd -n '$group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$group_gid'"
[ "$group_members" ] && cmd="$cmd -M '$group_members'"
local cmd="pw groupadd -n '$_group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$_group_gid'"
[ "$group_members" ] && cmd="$cmd -M '$_group_members'"
# Execute the command
local retval err
@ -276,8 +289,10 @@ f_group_delete()
case "$mtag" in
X) # Delete/Exit
local _group_name
f_shell_escape "$group_name" _group_name
f_eval_catch $funcname pw 'pw groupdel "%s"' \
"$group_name" && break
"$_group_name" && break
;;
1) # Group Name (select different group from list)
f_dialog_menu_group_list "$group_name" || continue
@ -296,9 +311,10 @@ f_group_delete()
esac
done
else
local retval err
local retval err _group_name
f_shell_escape "$group_name" _group_name
f_eval_catch -k err $funcname pw \
'pw groupdel "%s"' "$group_name"
"pw groupdel '%s'" "$_group_name"
retval=$?
if [ $retval -ne $SUCCESS ]; then
f_show_err "%s" "$err"
@ -406,10 +422,17 @@ f_group_edit()
case "$mtag" in
X) # Save/Exit
local cmd="pw groupmod -n '$group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$group_gid'"
local var
for var in gid members name; do
local _group_$var
eval f_shell_escape \
\"\$group_$var\" _group_$var
done
local cmd="pw groupmod -n '$_group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$_group_gid'"
[ "$group_members" -o "$null_members" ] &&
cmd="$cmd -M '$group_members'"
cmd="$cmd -M '$_group_members'"
# Execute the command (break on success)
if [ "$group_password_disable" ]; then
@ -451,11 +474,17 @@ f_group_edit()
esac
done
else
local var
for var in gid members name; do
local _group_$var
eval f_shell_escape \"\$group_$var\" _group_$var
done
# Form the command
local cmd="pw groupmod -n '$group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$group_gid'"
local cmd="pw groupmod -n '$_group_name'"
[ "$group_gid" ] && cmd="$cmd -g '$_group_gid'"
[ "$group_members" -o "$null_members" ] &&
cmd="$cmd -M '$group_members'"
cmd="$cmd -M '$_group_members'"
# Execute the command
local retval err

View File

@ -53,12 +53,16 @@ f_input_group()
f_dprintf "$funcname: Getting info for group \`%s'" "$group"
eval "$( pw groupshow "$group" 2> /dev/null | awk -F: '
function set_value(var, value) {
gsub(/'\''/, "'\''\\'\'\''", value)
printf "group_%s='\'%s\''\n", var, value
}
{
found = $1 != ""
printf "group_name='\'%s\''\n", $1
printf "group_password=\n"
printf "group_gid='\'%s\''\n", $3
printf "group_members='\'%s\''\n", $4
set_value("name", $1)
set_value("password", "")
set_value("gid", $3)
set_value("members", $4)
exit
}
END { if (!found) print "false" }' )"
@ -80,10 +84,13 @@ f_dialog_menu_group_list()
# Add groups from group(5)
menu_list="$menu_list $( pw groupshow -a | awk -F: '
!/^[[:space:]]*(#|$)/ {
printf "'\'%s\'\ \'%s\''\n", $1, $1
}'
)"
function mprint(tag, item) {
gsub(/'\''/, "'\''\\'\'\''", tag)
gsub(/'\''/, "'\''\\'\'\''", item)
printf "'\'%s\'\ \'%s\''\n", tag, item
}
!/^[[:space:]]*(#|$)/ { mprint($1, $1) }
' )"
local height width rows
eval f_dialog_menu_size height width rows \
@ -331,16 +338,18 @@ f_dialog_input_group_members()
X) # Exit
break ;;
1) # Select Group Members from a list
local __user_list __length=0 __user __check_list=
local __check_list= # Calculated below
local __user_list __u __user __length=0
__user_list=$( pw usershow -a |
awk -F: '!/^[[:space:]]*(#|$)/{print $1}' )
while [ $__length -ne ${#__user_list} ]; do
__user="${__user_list%%$NL*}" # First line
__u="${__user_list%%$NL*}" # First line
f_shell_escape "$__u" __user
# Format of a checklist entry: tag item status
__check_list="$__check_list '$__user' ''"
case "$__input" in
"$__user"|"$__user",*|*,"$__user",*|*,"$__user")
"$__u"|"$__u",*|*,"$__u",*|*,"$__u")
__check_list="$__check_list on" ;;
*)
__check_list="$__check_list off"
@ -416,12 +425,20 @@ f_dialog_menu_group_add()
local defaultitem="$1"
local hline="$hline_arrows_tab_enter"
# Localize potentially hostile variables and escape their values
# to the local variable (see f_shell_escape() of `strings.subr')
local var
for var in gid members name; do
local _group_$var
eval f_shell_escape \"\$group_$var\" _group_$var
done
menu_list="
'X' '$msg_add/$msg_exit'
'1' '$msg_group: $group_name'
'1' '$msg_group: $_group_name'
'2' '$msg_password: -----'
'3' '$msg_group_id: $group_gid'
'4' '$msg_group_members: $group_members'
'3' '$msg_group_id: $_group_gid'
'4' '$msg_group_members: $_group_members'
" # END-QUOTE
local height width rows
@ -470,12 +487,20 @@ f_dialog_menu_group_delete()
local group_name group_password group_gid group_members
f_input_group "$1"
# Localize potentially hostile variables and escape their values
# to the local variable (see f_shell_escape() of `strings.subr')
local var
for var in gid members name; do
local _group_$var
eval f_shell_escape \"\$group_$var\" _group_$var
done
menu_list="
'X' '$msg_delete/$msg_exit'
'1' '$msg_group: $group_name'
'1' '$msg_group: $_group_name'
'-' '$msg_password: -----'
'-' '$msg_group_id: $group_gid'
'-' '$msg_group_members: $group_members'
'-' '$msg_group_id: $_group_gid'
'-' '$msg_group_members: $_group_members'
" # END-QUOTE
local height width rows
@ -521,12 +546,20 @@ f_dialog_menu_group_edit()
local defaultitem="$1"
local hline="$hline_arrows_tab_enter"
# Localize potentially hostile variables and escape their values
# to the local variable (see f_shell_escape() of `strings.subr')
local var
for var in gid members name; do
local _group_$var
eval f_shell_escape \"\$group_$var\" _group_$var
done
menu_list="
'X' '$msg_save/$msg_exit'
'1' '$msg_group: $group_name'
'1' '$msg_group: $_group_name'
'2' '$msg_password: -----'
'3' '$msg_group_id: $group_gid'
'4' '$msg_group_members: $group_members'
'3' '$msg_group_id: $_group_gid'
'4' '$msg_group_members: $_group_members'
" # END-QUOTE
local height width rows