xref: /freebsd-10.2-release/usr.sbin/bsdconfig/usermgmt/share/group_input.subr

if [ ! "$_USERMGMT_GROUP_INPUT_SUBR" ]; then _USERMGMT_GROUP_INPUT_SUBR=1
#
# Copyright (c) 2012 Ron McDowell
# Copyright (c) 2012 Devin Teske
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD: head/usr.sbin/bsdconfig/usermgmt/share/group_input.subr 240768 2012-09-20 23:44:13Z dteske $
#
############################################################ INCLUDES

BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_include $BSDCFG_SHARE/dialog.subr
f_include $BSDCFG_SHARE/strings.subr

BSDCFG_LIBE="/usr/libexec/bsdconfig" APP_DIR="070.usermgmt"
f_include_lang $BSDCFG_LIBE/include/messages.subr
f_include_lang $BSDCFG_LIBE/$APP_DIR/include/messages.subr

############################################################ FUNCTIONS

# f_input_group $group
#
# Given $group name or id, create the environment variables group_name,
# group_gid, and group_members (and group_password is reset to NULL).
#
f_input_group()
{
	eval $( pw groupshow "$1" | awk -F: '
	{
		printf "group_name='\'%s\''\n", $1
		printf "group_password=\n"
		printf "group_gid='\'%s\''\n", $3
		printf "group_members='\'%s\''\n", $4
		exit
	}' )
}

# f_dialog_menu_group_list
#
# Allows the user to select a group from a list.
#
f_dialog_menu_group_list()
{
	local menu_list size
	local hline="$hline_alnum_punc_tab_enter"

	menu_list="
		'X $msg_exit' ''
	" # END-QUOTE

	# Add groups from group(5)
	menu_list="$menu_list $( pw groupshow -a | awk -F: '
		!/^[[:space:]]*(#|$)/ {
			printf "'\'%s\'\ \'%s\''\n", $1, $1
		}'
	)"

	size=$( eval f_dialog_menu_size \
	        	\"\$DIALOG_TITLE\"     \
	        	\"\$DIALOG_BACKTITLE\" \
	        	\"\"                   \
	        	\"\$hline\"            \
	        	$menu_list             )

	local dialog_menu
	dialog_menu=$( eval $DIALOG \
		--clear --title \"\$DIALOG_TITLE\" \
		--backtitle \"\$DIALOG_BACKTITLE\" \
		--hline \"\$hline\"                \
		--ok-label \"\$msg_ok\"            \
		--cancel-label \"\$msg_cancel\"    \
		--menu \"\" $size $menu_list       \
		2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
	)
	local retval=$?
	setvar DIALOG_MENU_$$ "$dialog_menu"
	return $retval
}

# f_dialog_input_group_name [$group_name]
#
# Allows the user to enter a new groupname for a given group. If the user does
# not cancel or press ESC, the $group_name variable will hold the
# newly-configured value upon return.
#
# If $cur_group_name is defined, the user can enter that and by-pass error-
# checking (allowing the user to "revert" to an old value without, for example,
# being told that the groupname already exists).
#
f_dialog_input_group_name()
{
	local msg="$( printf "$msg_group" )"
	local hline="$hline_alnum_tab_enter"

	#
	# Loop until the user provides taint-free/valid input
	#
	local size retval _name="$1" _input="$1"
	while :; do
		size=$( f_dialog_inputbox_size \
		        	"$DIALOG_TITLE"     \
		        	"$DIALOG_BACKTITLE" \
		        	"$msg"              \
		        	"$_input"           \
		        	"$hline"            )

		local dialog_inputbox
		dialog_inputbox=$( eval $DIALOG \
			--title \"\$DIALOG_TITLE\"         \
			--backtitle \"\$DIALOG_BACKTITLE\" \
			--hline \"\$hline\"                \
			--ok-label \"\$msg_ok\"            \
			--cancel-label \"\$msg_cancel\"    \
			--inputbox \"\$msg\" $size         \
			\"\$_input\"                       \
			2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
		)

		retval=$?
		setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
		_input=$( f_dialog_inputstr )

		# Return if user has either pressed ESC or chosen Cancel/No
		[ $retval -eq $SUCCESS ] || return $retval

		# Check for no-change
		[ "$_input" = "$_name" ] && return $SUCCESS

		# Check for reversion
		if [ "$_input" = "$cur_group_name" ]; then
			group_name="$cur_group_name"
			return $SUCCESS
		fi

		# Check for NULL entry
		if [ ! "$_input" ]; then
			f_show_msg "$msg_group_is_empty"
			continue
		fi

		# Check for invalid entry
		if ! echo "$_input" | grep -q "^[[:alpha:]]"; then
			f_show_msg "$msg_group_must_start_with_letter"
			continue
		fi

		# Check for duplicate entry
		if f_quietly pw groupshow -n "$_input"; then
			f_show_msg "$msg_group_already_used" "$_input"
			continue
		fi

		group_name="$_input"
		break
	done
	save_flag=1

	f_dprintf "group_name: [$cur_group_name]->[$group_name]"

	return $SUCCESS
}

# f_dialog_input_group_password
#
# Prompt the user to enter a password (twice).
#
f_dialog_input_group_password()
{
	local hline="$hline_alnum_punc_tab_enter"
	local msg size rmsg rsize

	msg=$( printf "$msg_group_password" )
	size=$( f_dialog_inputbox_size \
	        	"$DIALOG_TITLE"     \
	        	"$DIALOG_BACKTITLE" \
	        	"$msg"              \
	        	""                  \
	        	"$hline"            )

	rmsg=$( printf "$msg_reenter_group_password" )
	rsize=$( f_dialog_inputbox_size \
	        	"$DIALOG_TITLE"     \
	        	"$DIALOG_BACKTITLE" \
	        	"$rmsg"             \
	        	""                  \
	        	"$hline"            )

	#
	# Loop until the user provides taint-free/valid input
	#
	local retval _password1 _password2
	while :; do
		local dialog_inputbox
		dialog_inputbox=$( eval $DIALOG \
			--title \"\$DIALOG_TITLE\"         \
			--backtitle \"\$DIALOG_BACKTITLE\" \
			--hline \"\$hline\"                \
			--ok-label \"\$msg_ok\"            \
			--cancel-label \"\$msg_cancel\"    \
			--insecure                         \
			--passwordbox \"\$msg\" $size      \
			2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
		)

		retval=$?
		setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
		_password1=$( f_dialog_inputstr )

		# Return if user has either pressed ESC or chosen Cancel/No
		[ $retval -eq $SUCCESS ] || return $retval

		dialog_inputbox=$( eval $DIALOG \
			--title \"\$DIALOG_TITLE\"         \
			--backtitle \"\$DIALOG_BACKTITLE\" \
			--hline \"\$hline\"                \
			--ok-label \"\$msg_ok\"            \
			--cancel-label \"\$msg_cancel\"    \
			--insecure                         \
			--passwordbox \"\$rmsg\" $rsize    \
			2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
		)

		retval=$?
		setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
		_password2=$( f_dialog_inputstr )

		# Return if user has either pressed ESC or chosen Cancel/No
		[ $retval -eq $SUCCESS ] || return $retval

		# Check for password mismatch
		if [ "$_password1" != "$_password2" ]; then
			f_show_msg "$msg_group_passwords_do_not_match"
			continue
		fi

		# Check for NULL entry
		if [ ! "$_password1" ]; then
			f_dialog_yesno \
				"$msg_disable_password_auth_for_group" ||
				continue
			pw_group_password_disable=1
		else
			pw_group_password_disable=
		fi

		group_password="$_password1"
		break
	done
	save_flag=1

	f_dprintf "group_password: [$cur_group_password]->[$group_password]"

	return $SUCCESS
}

# f_dialog_input_group_gid [$group_gid]
#
# Allow the user to enter a new GID for a given group. If the user does not
# cancel or press ESC, the $group_gid variable will hold the newly-configured
# value upon return.
#
f_dialog_input_group_gid()
{
	local msg size retval _input="$1"
	local hline="$hline_num_tab_enter"

	msg=$( printf "$msg_group_id_leave_empty_for_default" )
	size=$( f_dialog_inputbox_size \
	        	"$DIALOG_TITLE"     \
	        	"$DIALOG_BACKTITLE" \
	        	"$msg"              \
	        	"$_input"           \
	        	"$hline"            )

	local dialog_inputbox
	dialog_inputbox=$( eval $DIALOG \
		--title \"\$DIALOG_TITLE\"         \
		--backtitle \"\$DIALOG_BACKTITLE\" \
		--hline \"\$hline\"                \
		--ok-label \"\$msg_ok\"            \
		--cancel-label \"\$msg_cancel\"    \
		--inputbox \"\$msg\" $size         \
		\"\$_input\"                       \
		2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
	)

	retval=$?
	setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
	_input=$( f_dialog_inputstr )

	# Return if user has either pressed ESC or chosen Cancel/No
	[ $retval -eq $SUCCESS ] || return $retval

	group_gid="$_input"
	save_flag=1

	f_dprintf "group_gid: [$cur_group_gid]->[$group_gid]"

	return $SUCCESS
}

# f_dialog_input_group_members [$group_members]
#
# Allow the user to modify a list of members for a given group. If the user does
# not cancel or press ESC, the $group_members variable will hold the newly-
# configured value upon return.
#
f_dialog_input_group_members()
{
	local menu_choice msg size retval _input="$1"
	local hline="$hline_num_arrows_tab_enter"
	local user 
	local menu_list
	local all_users_valid
	local _group_members
	local checklist_users

	menu_list="
		'X' '$msg_continue'
		'1' '$msg_select_group_members_from_list'
		'2' '$msg_enter_group_members_manually'
	" # END-QUOTE

	local dialog_menu
	while :; do
		msg="$msg_group_members:"
		menu_size=$( eval f_dialog_menu_size \
				\"\$DIALOG_TITLE\"     \
				\"\$DIALOG_BACKTITLE\" \
				\"\$msg\"              \
				\"\$hline\"            \
				$menu_list             )
		dialog_menu=$( eval $DIALOG \
			--title \"\$DIALOG_TITLE\"         \
			--backtitle \"\$DIALOG_BACKTITLE\" \
			--hline \"\$hline\"                \
			--ok-label \"\$msg_ok\"            \
			--cancel-label \"\$msg_cancel\"    \
			--menu \"\$msg\" $menu_size        \
			$menu_list                         \
			2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
		)
		retval=$?
		setvar DIALOG_MENU_$$ "$dialog_menu"
		menu_choice=$( f_dialog_menutag )
		f_dprintf "retval=$retval menu_choice=[$menu_choice]"

		# Return if user has either pressed ESC or chosen Cancel/No
		[ $retval -eq $SUCCESS ] || return $retval

		case "$menu_choice" in
		X) # Exit
			break ;;
		1) # Select Group Members from a list
			user_list=$( pw usershow -a | awk -F: '
				!/^[[:space:]]*(#|$)/ { printf "%s\n", $1 }' )
			checklist_users=
			for user in $user_list; do
				checklist_users="$checklist_users $user \"\""
				if echo "$_input" | grep -q "\<$user\>"; then
					checklist_users="$checklist_users on"
				else
					checklist_users="$checklist_users off"
				fi
			done

			size=$( eval f_dialog_radiolist_size \
			        	\"\$DIALOG_TITLE\"     \
			        	\"\$DIALOG_BACKTITLE\" \
			        	\"\"                   \
			        	\"\$hline\"            \
			        	$checklist_users       )
			local dialog_inputbox
			dialog_inputbox=$( eval $DIALOG \
				--title \"\$DIALOG_TITLE\"         \
				--backtitle \"\$DIALOG_BACKTITLE\" \
				--separate-output                  \
				--hline \"\$hline\"                \
				--ok-label \"\$msg_ok\"            \
				--cancel-label \"\$msg_cancel\"    \
				--checklist \"\$msg\" $size        \
				$checklist_users                   \
				2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
			)
			retval=$?
			setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
			_group_members=$( f_dialog_inputstr | tr '\n' ' ' |
				sed -e 's/[[:space:]]\{1,\}/,/g;s/^,//;s/,$//' )

			# Return to previous menu if user has either
			#     pressed ESC or chosen Cancel/No
			[ $retval -eq $SUCCESS ] || continue

			_input="$_group_members"
			;;
		2) # Enter Group Members manually
			hline="$hline_num_tab_enter"
			msg=$(
			  printf "$msg_group_members ($msg_separated_by_commas)"
			)
			size=$( f_dialog_inputbox_size \
	        		"$DIALOG_TITLE"     \
	        		"$DIALOG_BACKTITLE" \
	        		"$msg"              \
	        		"$_input"           \
	        		"$hline"            )

			local dialog_inputbox
			dialog_inputbox=$( eval $DIALOG \
				--title \"\$DIALOG_TITLE\"         \
				--backtitle \"\$DIALOG_BACKTITLE\" \
				--hline \"\$hline\"                \
				--ok-label \"\$msg_ok\"            \
				--cancel-label \"\$msg_cancel\"    \
				--inputbox \"\$msg\" $size         \
				\"\$_input\"                       \
				2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
			)

			retval=$?
			setvar DIALOG_INPUTBOX_$$ "$dialog_inputbox"
			_group_members=$( f_dialog_inputstr )

			# Return to previous menu if user has either
			#     pressed ESC or chosen Cancel/No
			[ $retval -eq $SUCCESS ] || continue

			_input="$_group_members"
			;;
		esac
	done

	group_members="$_input"
	save_flag=1
	f_dprintf "group_members: [$cur_group_members]->[$group_members]"

	return $SUCCESS
}

fi # ! $_USERMGMT_GROUP_INPUT_SUBR