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user.subr

if [ ! "$_USERMGMT_USER_SUBR" ]; then _USERMGMT_USER_SUBR=1
#
# Copyright (c) 2012 Ron McDowell
# Copyright (c) 2012-2015 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.
#
#
############################################################ INCLUDES

BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_dprintf "%s: loading includes..." usermgmt/user.subr
f_include $BSDCFG_SHARE/dialog.subr
f_include $BSDCFG_SHARE/strings.subr
f_include $BSDCFG_SHARE/usermgmt/group_input.subr
f_include $BSDCFG_SHARE/usermgmt/user_input.subr

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

############################################################ CONFIGURATION

# set some reasonable defaults if /etc/adduser.conf does not exist.
[ -f /etc/adduser.conf ] && f_include /etc/adduser.conf
: ${defaultclass:=""}
: ${defaultshell:="/bin/sh"}
: ${homeprefix:="/home"}
: ${passwdtype:="yes"}
: ${udotdir:="/usr/share/skel"}
: ${uexpire:=""}
	# Default account expire time. Format is similar to upwexpire variable.
: ${ugecos:="User &"}
: ${upwexpire:=""}
	# The default password expiration time. Format of the date is either a
	# UNIX time in decimal, or a date in dd-mmm-yy[yy] format, where dd is
	# the day, mmm is the month in either numeric or alphabetic format, and
	# yy[yy] is either a two or four digit year. This variable also accepts
	# a relative date in the form of n[mhdwoy] where n is a decimal, octal
	# (leading 0) or hexadecimal (leading 0x) digit followed by the number
	# of Minutes, Hours, Days, Weeks, Months or Years from the current date
	# at which the expiration time is to be set.

#
# uexpire and upwexpire from adduser.conf(5) differ only slightly from what
# pw(8) accepts as `date' argument(s); pw(8) requires a leading `+' for the
# relative date syntax (n[mhdwoy]).
#
case "$uexpire" in *[mhdwoy])
	f_isinteger "${uexpire%[mhdwoy]}" && uexpire="+$uexpire"
esac
case "$upwexpire" in *[mhdwoy])
	f_isinteger "${upwexpire%[mhdwoy]}" && upwexpire="+$upwexpire"
esac

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

# f_user_create_homedir $user
#
# Create home directory for $user.
#
f_user_create_homedir()
{
	local funcname=f_user_create_homedir
	local user="$1"

[ "$user" ] || return $FAILURE

local user_account_expire user_class user_gecos user_gid user_home_dir
	local user_member_groups user_name user_password user_password_expire
	local user_shell user_uid # Variables created by f_input_user() below
	f_input_user "$user" || return $FAILURE

f_dprintf "Creating home directory \`%s' for user \`%s'" \
	          "$user_home_dir" "$user"

local _user_gid _user_home_dir _user_uid
	f_shell_escape "$user_gid"      _user_gid
	f_shell_escape "$user_home_dir" _user_home_dir
	f_shell_escape "$user_uid"      _user_uid
	f_eval_catch $funcname mkdir "mkdir -p '%s'" "$_user_home_dir" ||
		return $FAILURE
	f_eval_catch $funcname chown "chown '%i:%i' '%s'" \
		"$_user_uid" "$_user_gid" "$_user_home_dir" || return $FAILURE
}

# f_user_copy_dotfiles $user
#
# Copy `skel' dot-files from $udotdir (global inherited from /etc/adduser.conf)
# to the home-directory of $user. Attempts to create the home-directory first
# if it doesn't exist.
#
f_user_copy_dotfiles()
{
	local funcname=f_user_copy_dotfiles
	local user="$1"

[ "$udotdir" ] || return $FAILURE
	[ "$user"    ] || return $FAILURE

f_dprintf "Copying dot-files from \`%s' to \`%s'" \
	          "$udotdir" "$user_home_dir"

# Attempt to create the home directory if it doesn't exist
	[ -d "$user_home_dir" ] ||
		f_user_create_homedir "$user" || return $FAILURE

local _user_gid _user_home_dir _user_uid
	f_shell_escape "$user_gid"      _user_gid
	f_shell_escape "$user_home_dir" _user_home_dir
	f_shell_escape "$user_uid"      _user_uid

local - # Localize `set' to this function
	set +f # Enable glob pattern-matching for paths
	cd "$udotdir" || return $FAILURE

local _file file retval
	for file in dot.*; do
		[ -e "$file" ] || continue # no-match

f_shell_escape "$file" "_file"
		f_eval_catch $funcname cp "cp -n '%s' '%s'" \
			"$_file" "$_user_home_dir/${_file#dot}"
		retval=$?
		[ $retval -eq $SUCCESS ] || break
		f_eval_catch $funcname chown \
			"chown -h '%i:%i' '%s'" \
			"$_user_uid" "$_user_gid" \
			"$_user_home_dir/${_file#dot}"
		retval=$?
		[ $retval -eq $SUCCESS ] || break
	done

cd -
	return $retval
}

# f_user_add [$user]
#
# Create a login account. If both $user (as a first argument) and $VAR_USER are
# unset or NULL and we are running interactively, prompt the end-user to enter
# the name of a new login account and (if $VAR_NO_CONFIRM is unset or NULL)
# prompt the end-user to answer some questions about the new account. Variables
# that can be used to script user input:
#
# 	VAR_USER [Optional if running interactively]
# 		The login to add. Ignored if given non-NULL first-argument.
# 	VAR_USER_ACCOUNT_EXPIRE [Optional]
# 		The account expiration time. Format is similar to
# 		VAR_USER_PASSWORD_EXPIRE variable below. Default is to never
# 		expire the account.
# 	VAR_USER_DOTFILES_CREATE [Optional]
# 		If non-NULL, populate the user's home directory with the
# 		template files found in $udotdir (`/usr/share/skel' default).
# 	VAR_USER_GECOS [Optional]
# 		Often the full name of the account holder. Default is NULL.
# 	VAR_USER_GID [Optional]
# 		Numerical primary-group ID to use. If NULL or unset, the group
# 		ID is automatically chosen.
# 	VAR_USER_GROUPS [Optional]
# 		Comma-separated list of additional groups to which the user is
# 		a member of. Default is NULL (no additional groups).
# 	VAR_USER_HOME [Optional]
# 		The home directory to set. If NULL or unset, the home directory
# 		is automatically calculated.
# 	VAR_USER_HOME_CREATE [Optional]
# 		If non-NULL, create the user's home directory if it doesn't
# 		already exist.
# 	VAR_USER_LOGIN_CLASS [Optional]
# 		Login class to use when creating the login. Default is NULL.
# 	VAR_USER_PASSWORD [Optional]
# 		Unencrypted password to use. If unset or NULL, password
# 		authentication for the login is disabled.
# 	VAR_USER_PASSWORD_EXPIRE [Optional]
# 		The password expiration time. Format of the date is either a
# 		UNIX time in decimal, or a date in dd-mmm-yy[yy] format, where
# 		dd is the day, mmm is the month in either numeric or alphabetic
# 		format, and yy[yy] is either a two or four digit year. This
# 		variable also accepts a relative date in the form of +n[mhdwoy]
# 		where n is a decimal, octal (leading 0) or hexadecimal (leading
# 		0x) digit followed by the number of Minutes, Hours, Days,
# 		Weeks, Months or Years from the current date at which the
# 		expiration time is to be set. Default is to never expire the
# 		account password.
# 	VAR_USER_SHELL [Optional]
# 		Path to login shell to use. Default is `/bin/sh'.
# 	VAR_USER_UID [Optional]
# 		Numerical user ID to use. If NULL or unset, the user ID is
# 		automatically chosen.
#
# Returns success if the user account was successfully created.
#
f_user_add()
{
	local funcname=f_user_add
	local title # Calculated below
	local alert=f_show_msg no_confirm=

f_getvar $VAR_NO_CONFIRM no_confirm
	[ "$no_confirm" ] && alert=f_show_info

local input
	f_getvar 3:-\$$VAR_USER input "$1"

#
	# NB: pw(8) has a ``feature'' wherein `-n name' can be taken as UID
	# instead of name. Work-around is to also pass `-u UID' at the same
	# time (the UID is ignored in this case, so any UID will do).
	#
	if [ "$input" ] && f_quietly pw usershow -n "$input" -u 1337; then
		f_show_err "$msg_login_already_used" "$input"
		return $FAILURE
	fi

local user_name="$input"
	while f_interactive && [ ! "$user_name" ]; do
		f_dialog_input_name user_name "$user_name" ||
			return $SUCCESS
		[ "$user_name" ] ||
			f_show_err "$msg_please_enter_a_user_name"
	done
	if [ ! "$user_name" ]; then
		f_show_err "$msg_no_user_specified"
		return $FAILURE
	fi

local user_account_expire user_class user_gecos user_gid user_home_dir
	local user_member_groups user_password user_password_expire user_shell
	local user_uid user_dotfiles_create= user_home_create=
	f_getvar $VAR_USER_ACCOUNT_EXPIRE-\$uexpire    user_account_expire
	f_getvar $VAR_USER_DOTFILES_CREATE:+\$msg_yes  user_dotfiles_create
	f_getvar $VAR_USER_GECOS-\$ugecos              user_gecos
	f_getvar $VAR_USER_GID                         user_gid
	f_getvar $VAR_USER_GROUPS                      user_member_groups
	f_getvar $VAR_USER_HOME:-\${homeprefix%/}/\$user_name \
	                                               user_home_dir
	f_getvar $VAR_USER_HOME_CREATE:+\$msg_yes      user_home_create
	f_getvar $VAR_USER_LOGIN_CLASS-\$defaultclass  user_class
	f_getvar $VAR_USER_PASSWORD                    user_password
	f_getvar $VAR_USER_PASSWORD_EXPIRE-\$upwexpire user_password_expire
	f_getvar $VAR_USER_SHELL-\$defaultshell        user_shell
	f_getvar $VAR_USER_UID                         user_uid

# Create home-dir if no script-override and does not exist
	f_isset $VAR_USER_HOME_CREATE || [ -d "$user_home_dir" ] ||
		user_home_create="$msg_yes"
	# Copy dotfiles if home-dir creation is desired, does not yet exist,
	# and no script-override has been set
	f_isset $VAR_USER_DOTFILES_CREATE ||
		[ "$user_home_create" != "$msg_yes" ] ||
		[ -d "$user_home_dir" ] || user_dotfiles_create="$msg_yes"
	# Create home-dir if copying dotfiles but home-dir does not exist
	[ "$user_dotfiles_create" -a ! -d "$user_home_dir" ] &&
		user_home_create="$msg_yes"

# Set flags for meaningful NULL values if-provided
	local no_account_expire= no_password_expire= null_gecos= null_members=
	local user_password_disable=
	f_isset $VAR_USER_ACCOUNT_EXPIRE &&
		[ ! "$user_account_expire"  ] && no_account_expire=1
	f_isset $VAR_USER_GECOS &&
		[ ! "$user_gecos"           ] && null_gecos=1
	f_isset $VAR_USER_GROUPS &&
		[ ! "$user_member_groups"   ] && null_members=1
	f_isset $VAR_USER_PASSWORD &&
		[ ! "$user_password"        ] && user_password_disable=1
	f_isset $VAR_USER_PASSWORD_EXPIRE &&
		[ ! "$user_password_expire" ] && no_password_expire=1

if f_interactive && [ ! "$no_confirm" ]; then
		f_dialog_noyes \
			"$msg_use_default_values_for_all_account_details"
		retval=$?
		if [ $retval -eq $DIALOG_ESC ]; then
			return $SUCCESS
		elif [ $retval -ne $DIALOG_OK ]; then
			#
			# Ask series of questions to pre-fill the editor screen
			#
			# Defaults used in each dialog should allow the user to
			# simply hit ENTER to proceed, because cancelling any
			# single dialog will cause them to be returned to the
			# previous menu.
			#

f_dialog_input_gecos user_gecos "$user_gecos" ||
				return $FAILURE
			if [ "$passwdtype" = "yes" ]; then
				f_dialog_input_password user_password \
					user_password_disable ||
					return $FAILURE
			fi
			f_dialog_input_uid user_uid "$user_uid" ||
				return $FAILURE
			f_dialog_input_gid user_gid "$user_gid" ||
				return $FAILURE
			f_dialog_input_member_groups user_member_groups \
				"$user_member_groups" || return $FAILURE
			f_dialog_input_class user_class "$user_class" ||
				return $FAILURE
			f_dialog_input_expire_password user_password_expire \
				"$user_password_expire" || return $FAILURE
			f_dialog_input_expire_account user_account_expire \
				"$user_account_expire" || return $FAILURE
			f_dialog_input_home_dir user_home_dir \
				"$user_home_dir" || return $FAILURE
			if [ ! -d "$user_home_dir" ]; then
				f_dialog_input_home_create user_home_create ||
					return $FAILURE
				if [ "$user_home_create" = "$msg_yes" ]; then
					f_dialog_input_dotfiles_create \
						user_dotfiles_create ||
						return $FAILURE
				fi
			fi
			f_dialog_input_shell user_shell "$user_shell" ||
				return $FAILURE
		fi
	fi

#
	# Loop until the user decides to Exit, Cancel, or presses ESC
	#
	title="$msg_add $msg_user: $user_name"
	if f_interactive; then
		local mtag retval defaultitem=
		while :; do
			f_dialog_title "$title"
			f_dialog_menu_user_add "$defaultitem"
			retval=$?
			f_dialog_title_restore
			f_dialog_menutag_fetch mtag
			f_dprintf "retval=%u mtag=[%s]" $retval "$mtag"
			defaultitem="$mtag"

# Return if user either pressed ESC or chose Cancel/No
			[ $retval -eq $DIALOG_OK ] || return $FAILURE

case "$mtag" in
			X) # Add/Exit
			   local var
			   for var in account_expire class gecos gid home_dir \
			   	member_groups name password_expire shell uid \
			   ; do
			   	local _user_$var
			   	eval f_shell_escape \"\$user_$var\" _user_$var
			   done

local cmd="pw useradd -n '$_user_name'"
			   [ "$user_gid"   ] && cmd="$cmd -g '$_user_gid'"
			   [ "$user_shell" ] && cmd="$cmd -s '$_user_shell'"
			   [ "$user_uid"   ] && cmd="$cmd -u '$_user_uid'"
			   [ "$user_account_expire" -o \
			     "$no_account_expire" ] &&
			   	cmd="$cmd -e '$_user_account_expire'"
			   [ "$user_class" -o "$null_class" ] &&
			   	cmd="$cmd -L '$_user_class'"
			   [ "$user_gecos" -o "$null_gecos" ] &&
			   	cmd="$cmd -c '$_user_gecos'"
			   [ "$user_home_dir" ] &&
			   	cmd="$cmd -d '$_user_home_dir'"
			   [ "$user_member_groups" ] &&
			   	cmd="$cmd -G '$_user_member_groups'"
			   [ "$user_password_expire" -o \
			     "$no_password_expire" ] &&
			   	cmd="$cmd -p '$_user_password_expire'"

# Execute the command
			   if [ "$user_password_disable" ]; then
			   	f_eval_catch $funcname pw '%s -h -' "$cmd"
			   elif [ "$user_password" ]; then
			   	echo "$user_password" | f_eval_catch \
			   		$funcname pw '%s -h 0' "$cmd"
			   else
			   	f_eval_catch $funcname pw '%s' "$cmd"
			   fi || continue

# Create home directory if desired
			   [ "${user_home_create:-$msg_no}" != "$msg_no" ] &&
			   	f_user_create_homedir "$user_name"

# Copy dotfiles if desired
			   [ "${user_dotfiles_create:-$msg_no}" != \
			     "$msg_no" ] && f_user_copy_dotfiles "$user_name"

break # to success
			   ;;
			1) # Login (prompt for new login name)
			   f_dialog_input_name input "$user_name" ||
			   	continue
			   if f_quietly pw usershow -n "$input" -u 1337; then
			   	f_show_err "$msg_login_already_used" "$input"
			   	continue
			   fi
			   user_name="$input"
			   title="$msg_add $msg_user: $user_name"
			   user_home_dir="${homeprefix%/}/$user_name"
			   ;;
			2) # Full Name
			   f_dialog_input_gecos user_gecos "$user_gecos" &&
			   	[ ! "$user_gecos" ] && null_gecos=1 ;;
			3) # Password
			   f_dialog_input_password \
			   	user_password user_password_disable ;;
			4) # User ID
			   f_dialog_input_uid user_uid "$user_uid" ;;
			5) # Group ID
			   f_dialog_input_gid user_gid "$user_gid" ;;
			6) # Member of Groups
			   f_dialog_input_member_groups \
			   	user_member_groups "$user_member_groups" &&
			   	[ ! "$user_member_groups" ] &&
			   	null_members=1 ;;
			7) # Login Class
			   f_dialog_input_class user_class "$user_class" &&
			   	[ ! "$user_class" ] && null_class=1 ;;
			8) # Password Expires On
			   f_dialog_input_expire_password \
			   	user_password_expire "$user_password_expire" &&
			   	[ ! "$user_password_expire" ] &&
			   	no_password_expire=1 ;;
			9) # Account Expires On
			   f_dialog_input_expire_account \
			   	user_account_expire "$user_account_expire" &&
			   	[ ! "$user_account_expire" ] &&
			   	no_account_expire=1 ;;
			A) # Home Directory
			   f_dialog_input_home_dir \
			   	user_home_dir "$user_home_dir" ;;
			B) # Shell
			   f_dialog_input_shell user_shell "$user_shell" ;;
			C) # Create Home Directory?
			   if [ "${user_home_create:-$msg_no}" != "$msg_no" ]
			   then
			   	user_home_create="$msg_no"
			   else
			   	user_home_create="$msg_yes"
			   fi ;;
			D) # Create Dotfiles?
			   if [ "${user_dotfiles_create:-$msg_no}" != \
			        "$msg_no" ]
			   then
			   	user_dotfiles_create="$msg_no"
			   else
			   	user_dotfiles_create="$msg_yes"
			   fi ;;
			esac
		done
	else
		local var
		for var in account_expire class gecos gid home_dir \
			member_groups name password_expire shell uid \
		; do
			local _user_$var
			eval f_shell_escape \"\$user_$var\" _user_$var
		done

# Form the command
		local cmd="pw useradd -n '$_user_name'"
		[ "$user_gid"      ] && cmd="$cmd -g '$_user_gid'"
		[ "$user_home_dir" ] && cmd="$cmd -d '$_user_home_dir'"
		[ "$user_shell"    ] && cmd="$cmd -s '$_user_shell'"
		[ "$user_uid"      ] && cmd="$cmd -u '$_user_uid'"
		[ "$user_account_expire" -o "$no_account_expire" ] &&
			cmd="$cmd -e '$_user_account_expire'"
		[ "$user_class" -o "$null_class" ] &&
			cmd="$cmd -L '$_user_class'"
		[ "$user_gecos" -o "$null_gecos" ] &&
			cmd="$cmd -c '$_user_gecos'"
		[ "$user_member_groups" -o "$null_members" ] &&
			cmd="$cmd -G '$_user_member_groups'"
		[ "$user_password_expire" -o "$no_password_expire" ] &&
			cmd="$cmd -p '$_user_password_expire'"

# Execute the command
		local retval err
		if [ "$user_password_disable" ]; then
			f_eval_catch -k err $funcname pw '%s -h -' "$cmd"
		elif [ "$user_password" ]; then
			err=$( echo "$user_password" | f_eval_catch -de \
				$funcname pw '%s -h 0' "$cmd" 2>&1 )
		else
			f_eval_catch -k err $funcname pw '%s' "$cmd"
		fi
		retval=$?
		if [ $retval -ne $SUCCESS ]; then
			f_show_err "%s" "$err"
			return $retval
		fi

# Create home directory if desired
		[ "${user_home_create:-$msg_no}" != "$msg_no" ] &&
			f_user_create_homedir "$user_name"

# Copy dotfiles if desired
		[ "${user_dotfiles_create:-$msg_no}" != "$msg_no" ] &&
			f_user_copy_dotfiles "$user_name"
	fi

f_dialog_title "$title"
	$alert "$msg_login_added"
	f_dialog_title_restore
	[ "$no_confirm" -a "$USE_DIALOG" ] && sleep 1

return $SUCCESS
}

# f_user_delete [$user]
#
# Delete a user. If both $user (as a first argument) and $VAR_USER are unset or
# NULL and we are running interactively, prompt the end-user to select a user
# account from a list of those available. Variables that can be used to script
# user input:
#
# 	VAR_USER [Optional if running interactively]
# 		The user to delete. Ignored if given non-NULL first-argument.
#
# Returns success if the user account was successfully deleted.
#
f_user_delete()
{
	local funcname=f_user_delete
	local title # Calculated below
	local alert=f_show_msg no_confirm=

f_getvar $VAR_NO_CONFIRM no_confirm
	[ "$no_confirm" ] && alert=f_show_info

local input
	f_getvar 3:-\$$VAR_USER input "$1"

if f_interactive && [ ! "$input" ]; then
		f_dialog_menu_user_list || return $SUCCESS
		f_dialog_menutag_fetch input
		[ "$input" = "X $msg_exit" ] && return $SUCCESS
	elif [ ! "$input" ]; then
		f_show_err "$msg_no_user_specified"
		return $FAILURE
	fi

local user_group_delete= user_home_delete=
	f_getvar $VAR_USER_GROUP_DELETE:-\$msg_no user_group_delete
	f_getvar $VAR_USER_HOME_DELETE:-\$msg_no  user_home_delete

# Attempt to translate user GID into a group name
	local user_group
	if user_group=$( pw groupshow -g "$user_gid" 2> /dev/null ); then
		user_group="${user_group%%:*}"
		# Default to delete the primary group if no script-override and
		# exists with same name as the user (same logic used by pw(8))
		f_isset $VAR_USER_GROUP_DELETE ||
			[ "$user_group" != "$user_name" ] ||
			user_group_delete="$msg_yes"
	fi

#
	# Loop until the user decides to Exit, Cancel, or presses ESC
	#
	title="$msg_delete $msg_user: $user_name"
	if f_interactive; then
		local mtag retval defaultitem=
		while :; do
			f_dialog_title "$title"
			f_dialog_menu_user_delete "$user_name" "$defaultitem"
			retval=$?
			f_dialog_title_restore
			f_dialog_menutag_fetch mtag
			f_dprintf "retval=%u mtag=[%s]" $retval "$mtag"
			defaultitem="$mtag"

# Return if user either pressed ESC or chose Cancel/No
			[ $retval -eq $DIALOG_OK ] || return $FAILURE

case "$mtag" in
			X) # Delete/Exit
			   f_shell_escape "$user_uid" _user_uid

# Save group information in case pw(8) deletes it
			   # and we wanted to keep it (to be restored below)
			   if [ "${user_group_delete:-$msg_no}" = "$msg_no" ]
			   then
			   	local v vars="gid members name password"
			   	for v in $vars; do local group_$var; done
			   	f_input_group "$user_group"

# Remove user-to-delete from group members
			   	# NB: Otherwise group restoration could fail
			   	local name length=0 _members=
			  	while [ $length -ne ${#group_members} ]; do
			   		name="${group_members%%,*}"
			   		[ "$name" != "$user_name" ] &&
			   			_members="$_members,$name"
			   		length=${#group_members}
			   		group_members="${group_members#*,}"
			   	done
			   	group_members="${_members#,}"

# Create escaped variables for f_eval_catch()
			   	for v in $vars; do
			   		local _group_$v
			   		eval f_shell_escape \
			   			\"\$group_$v\" _group_$v
			   	done
			   fi

# Delete the user (if asked to delete home directory
			   # display [X]dialog notification to show activity)
			   local cmd="pw userdel -u '$_user_uid'"
			   if [ "$user_home_delete" = "$msg_yes" -a \
			        "$USE_XDIALOG" ]
			   then
			   	local err
			   	err=$(
			   		exec 9>&1
			   		f_eval_catch -e $funcname pw \
			   		  "%s -r" "$cmd" \
			   		  >&$DIALOG_TERMINAL_PASSTHRU_FD 2>&9 |
			   		  f_xdialog_info \
			   		  	"$msg_deleting_home_directory"
			   	)
			   	[ ! "$err" ]
			   elif [ "$user_home_delete" = "$msg_yes" ]; then
			   	f_dialog_info "$msg_deleting_home_directory"
			   	f_eval_catch $funcname pw '%s -r' "$cmd"
			   else
			   	f_eval_catch $funcname pw '%s' "$cmd"
			   fi || continue

#
			   # pw(8) may conditionally delete the primary group,
			   # which may not be what is desired.
			   #
			   # If we've been asked to delete the group and pw(8)
			   # chose not to, delete it. Otherwise, if we're told
			   # to NOT delete the group, we may need to restore it
			   # since pw(8) doesn't have a flag to tell `userdel'
			   # to not delete the group.
			   # 
			   # NB: If primary group and user have different names
			   # the group may not have been deleted (again, see PR
			   # 169471 and SVN r263114 for details).
			   #
			   if [ "${user_group_delete:-$msg_no}" != "$msg_no" ]
			   then
			   	f_quietly pw groupshow -g "$user_gid" &&
			   	f_eval_catch $funcname pw \
			   		"pw groupdel -g '%s'" "$_user_gid"
			   elif ! f_quietly pw groupshow -g "$group_gid" &&
			        [ "$group_name" -a "$group_gid" ]
			   then
			   	# Group deleted by pw(8), so restore it
			   	local cmd="pw groupadd -n '$_group_name'"
			   	cmd="$cmd -g '$_group_gid'"
			   	cmd="$cmd -M '$_group_members'"

# Get the group password (pw(8) groupshow does
			  	# NOT provide this (even if running privileged)
			   	local group_password_enc
			   	group_password_enc=$( getent group | awk -F: '
			   		!/^[[:space:]]*(#|$)/ && \
			   		    $1 == ENVIRON["group_name"] && \
			   		    $3 == ENVIRON["group_gid"] && \
			   		    $4 == ENVIRON["group_members"] \
			   		{ print $2; exit }
			   	' )
			   	if [ "$group_password_enc" ]; then
			   		echo "$group_password_enc" |
			   			f_eval_catch $funcname \
			   				pw '%s -H 0' "$cmd"
			   	else
			   		f_eval_catch $funcname \
			   			pw '%s -h -' "$cmd"
			   	fi
			   fi

break # to success
			   ;;
			1) # Login (select different login from list)
			   f_dialog_menu_user_list "$user_name" || continue
			   f_dialog_menutag_fetch mtag

[ "$mtag" = "X $msg_exit" ] && continue

if ! f_input_user "$mtag"; then
			   	f_show_err "$msg_login_not_found" "$mtag"
			   	# Attempt to fall back to previous selection
			   	f_input_user "$input" || return $FAILURE
			   else
			   	input="$mtag"
			   fi
			   title="$msg_delete $msg_user: $user_name"
			   ;;
			C) # Delete Primary Group?
			   if [ "${user_group_delete:-$msg_no}" != "$msg_no" ]
			   then
			   	user_group_delete="$msg_no"
			   else
			   	user_group_delete="$msg_yes"
			   fi ;;
			D) # Delete Home Directory?
			   if [ "${user_home_delete:-$msg_no}" != "$msg_no" ]
			   then
			   	user_home_delete="$msg_no"
			   else
			   	user_home_delete="$msg_yes"
			   fi ;;
			esac
		done
	else
		f_shell_escape "$user_uid" _user_uid

# Save group information in case pw(8) deletes it
		# and we wanted to keep it (to be restored below)
		if [ "${user_group_delete:-$msg_no}" = "$msg_no" ]; then
			local v vars="gid members name password"
			for v in $vars; do local group_$v; done
			f_input_group "$user_group"

# Remove user we're about to delete from group members
			# NB: Otherwise group restoration could fail
			local name length=0 _members=
			while [ $length -ne ${#group_members} ]; do
				name="${group_members%%,*}"
				[ "$name" != "$user_name" ] &&
					_members="$_members,$name"
				length=${#group_members}
				group_members="${group_members#*,}"
			done
			group_members="${_members#,}"

# Create escaped variables for later f_eval_catch()
			for v in $vars; do
				local _group_$v
				eval f_shell_escape \"\$group_$v\" _group_$v
			done
		fi

# Delete the user (if asked to delete home directory
		# display [X]dialog notification to show activity)
		local err cmd="pw userdel -u '$_user_uid'"
		if [ "$user_home_delete" = "$msg_yes" -a "$USE_XDIALOG" ]; then
			err=$(
				exec 9>&1
				f_eval_catch -de $funcname pw \
					'%s -r' "$cmd" 2>&9 | f_xdialog_info \
					"$msg_deleting_home_directory"
			)
			[ ! "$err" ]
		elif [ "$user_home_delete" = "$msg_yes" ]; then
			f_dialog_info "$msg_deleting_home_directory"
			f_eval_catch -k err $funcname pw '%s -r' "$cmd"
		else
			f_eval_catch -k err $funcname pw '%s' "$cmd"
		fi
		local retval=$?
		if [ $retval -ne $SUCCESS ]; then
			f_show_err "%s" "$err"
			return $retval
		fi

#
		# pw(8) may conditionally delete the primary group, which may
		# not be what is desired.
		#
		# If we've been asked to delete the group and pw(8) chose not
		# to, delete it. Otherwise, if we're told to NOT delete the
		# group, we may need to restore it since pw(8) doesn't have a
		# flag to tell `userdel' to not delete the group.
		# 
		# NB: If primary group and user have different names the group
		# may not have been deleted (again, see PR 169471 and SVN
		# r263114 for details).
		#
		if [ "${user_group_delete:-$msg_no}" != "$msg_no" ]
		then
			f_quietly pw groupshow -g "$user_gid" &&
			f_eval_catch $funcname pw \
				"pw groupdel -g '%s'" "$_user_gid"
		elif ! f_quietly pw groupshow -g "$group_gid" &&
		     [ "$group_name" -a "$group_gid" ]
		then
			# Group deleted by pw(8), so restore it
			local cmd="pw groupadd -n '$_group_name'"
			cmd="$cmd -g '$_group_gid'"
			cmd="$cmd -M '$_group_members'"
			local group_password_enc
			group_password_enc=$( getent group | awk -F: '
				!/^[[:space:]]*(#|$)/ && \
				    $1 == ENVIRON["group_name"] && \
				    $3 == ENVIRON["group_gid"] && \
				    $4 == ENVIRON["group_members"] \
				{ print $2; exit }
			' )
			if [ "$group_password_enc" ]; then
				echo "$group_password_enc" |
					f_eval_catch $funcname \
						pw '%s -H 0' "$cmd"
			else
				f_eval_catch $funcname pw '%s -h -' "$cmd"
			fi
		fi
	fi

f_dialog_title "$title"
	$alert "$msg_login_deleted"
	f_dialog_title_restore
	[ "$no_confirm" -a "$USE_DIALOG" ] && sleep 1

return $SUCCESS
}

# f_user_edit [$user]
#
# Modify a login account. If both $user (as a first argument) and $VAR_USER are
# unset or NULL and we are running interactively, prompt the end-user to select
# a login account from a list of those available. Variables that can be used to
# script user input:
#
# 	VAR_USER [Optional if running interactively]
# 		The login to modify. Ignored if given non-NULL first-argument.
# 	VAR_USER_ACCOUNT_EXPIRE [Optional]
# 		The account expiration time. Format is similar to
# 		VAR_USER_PASSWORD_EXPIRE variable below. If unset, account
# 		expiry is unchanged. If set but NULL, account expiration is
# 		disabled (same as setting a value of `0').
# 	VAR_USER_DOTFILES_CREATE [Optional]
# 		If non-NULL, re-populate the user's home directory with the
# 		template files found in $udotdir (`/usr/share/skel' default).
# 	VAR_USER_GECOS [Optional]
# 		Often the full name of the account holder. If unset, the GECOS
# 		field is unmodified. If set but NULL, the field is blanked.
# 	VAR_USER_GID [Optional]
# 		Numerical primary-group ID to set. If NULL or unset, the group
# 		ID is unchanged.
# 	VAR_USER_GROUPS [Optional]
# 		Comma-separated list of additional groups to which the user is
# 		a member of. If set but NULL, group memberships are reset (this
# 		login will not be a member of any additional groups besides the
# 		primary group). If unset, group membership is unmodified.
# 	VAR_USER_HOME [Optional]
# 		The home directory to set. If NULL or unset, the home directory
# 		is unchanged.
# 	VAR_USER_HOME_CREATE [Optional]
# 		If non-NULL, create the user's home directory if it doesn't
# 		already exist.
# 	VAR_USER_LOGIN_CLASS [Optional]
# 		Login class to set. If unset, the login class is unchanged. If
# 		set but NULL, the field is blanked.
# 	VAR_USER_PASSWORD [Optional]
# 		Unencrypted password to set. If unset, the login password is
# 		unmodified. If set but NULL, password authentication for the
# 		login is disabled.
# 	VAR_USER_PASSWORD_EXPIRE [Optional]
# 		The password expiration time. Format of the date is either a
# 		UNIX time in decimal, or a date in dd-mmm-yy[yy] format, where
# 		dd is the day, mmm is the month in either numeric or alphabetic
# 		format, and yy[yy] is either a two or four digit year. This
# 		variable also accepts a relative date in the form of +n[mhdwoy]
# 		where n is a decimal, octal (leading 0) or hexadecimal (leading
# 		0x) digit followed by the number of Minutes, Hours, Days,
# 		Weeks, Months or Years from the current date at which the
# 		expiration time is to be set. If unset, password expiry is
# 		unchanged. If set but NULL, password expiration is disabled
# 		(same as setting a value of `0').
# 	VAR_USER_SHELL [Optional]
# 		Path to login shell to set. If NULL or unset, the shell is
# 		unchanged.
# 	VAR_USER_UID [Optional]
# 		Numerical user ID to set. If NULL or unset, the user ID is
# 		unchanged.
#
# Returns success if the user account was successfully modified.
#
f_user_edit()
{
	local funcname=f_user_edit
	local title # Calculated below
	local alert=f_show_msg no_confirm=

f_getvar $VAR_NO_CONFIRM no_confirm
	[ "$no_confirm" ] && alert=f_show_info

local input
	f_getvar 3:-\$$VAR_USER input "$1"

#
	# NB: pw(8) has a ``feature'' wherein `-n name' can be taken as UID
	# instead of name. Work-around is to also pass `-u UID' at the same
	# time (the UID is ignored in this case, so any UID will do).
	#
	if [ "$input" ] && ! f_quietly pw usershow -n "$input" -u 1337; then
		f_show_err "$msg_login_not_found" "$input"
		return $FAILURE
	fi

#
	# Override values probed by f_input_user() with desired values
	#
	f_isset $VAR_USER_GID   && f_getvar $VAR_USER_GID   user_gid
	f_isset $VAR_USER_HOME  && f_getvar $VAR_USER_HOME  user_home_dir
	f_isset $VAR_USER_SHELL && f_getvar $VAR_USER_SHELL user_shell
	f_isset $VAR_USER_UID   && f_getvar $VAR_USER_UID   user_uid
	local user_dotfiles_create= user_home_create=
	f_getvar $VAR_USER_DOTFILES_CREATE:+\$msg_yes user_dotfiles_create
	f_getvar $VAR_USER_HOME_CREATE:+\$msg_yes     user_home_create
	local no_account_expire=
	if f_isset $VAR_USER_ACCOUNT_EXPIRE; then
		f_getvar $VAR_USER_ACCOUNT_EXPIRE user_account_expire
		[ "$user_account_expire" ] || no_account_expire=1
	fi
	local null_gecos=
	if f_isset $VAR_USER_GECOS; then
		f_getvar $VAR_USER_GECOS user_gecos
		[ "$user_gecos" ] || null_gecos=1
	fi
	local null_members=
	if f_isset $VAR_USER_GROUPS; then
		f_getvar $VAR_USER_GROUPS user_member_groups
		[ "$user_member_groups" ] || null_members=1
	fi
	local null_class=
	if f_isset $VAR_USER_LOGIN_CLASS; then
		f_getvar $VAR_USER_LOGIN_CLASS user_class
		[ "$user_class" ] || null_class=1
	fi
	local user_password_disable=
	if f_isset $VAR_USER_PASSWORD; then
		f_getvar $VAR_USER_PASSWORD user_password
		[ "$user_password" ] || user_password_disable=1
	fi
	local no_password_expire=
	if f_isset $VAR_USER_PASSWORD_EXPIRE; then
		f_getvar $VAR_USER_PASSWORD_EXPIRE user_password_expire
		[ "$user_password_expire" ] || no_password_expire=1
	fi

#
	# Loop until the user decides to Exit, Cancel, or presses ESC
	#
	title="$msg_edit_view $msg_user: $user_name"
	if f_interactive; then
		local mtag retval defaultitem=
		while :; do
			f_dialog_title "$title"
			f_dialog_menu_user_edit "$defaultitem"
			retval=$?
			f_dialog_title_restore
			f_dialog_menutag_fetch mtag
			f_dprintf "retval=%u mtag=[%s]" $retval "$mtag"
			defaultitem="$mtag"

# Return if user either pressed ESC or chose Cancel/No
			[ $retval -eq $DIALOG_OK ] || return $FAILURE

case "$mtag" in
			X) # Save/Exit
			   local var
			   for var in account_expire class gecos gid home_dir \
			   	member_groups name password_expire shell uid \
			   ; do
			   	local _user_$var
			   	eval f_shell_escape \"\$user_$var\" _user_$var
			   done

local cmd="pw usermod -n '$_user_name'"
			   [ "$user_gid"   ] && cmd="$cmd -g '$_user_gid'"
			   [ "$user_shell" ] && cmd="$cmd -s '$_user_shell'"
			   [ "$user_uid"   ] && cmd="$cmd -u '$_user_uid'"
			   [ "$user_account_expire" -o \
			     "$no_account_expire" ] &&
			   	cmd="$cmd -e '$_user_account_expire'"
			   [ "$user_class" -o "$null_class" ] &&
			   	cmd="$cmd -L '$_user_class'"
			   [ "$user_gecos" -o "$null_gecos" ] &&
			   	cmd="$cmd -c '$_user_gecos'"
			   [ "$user_home_dir"  ] &&
			   	cmd="$cmd -d '$_user_home_dir'"
			   [ "$user_member_groups" -o "$null_members" ] &&
			   	cmd="$cmd -G '$_user_member_groups'"
			   [ "$user_password_expire" -o \
			     "$no_password_expire" ] &&
			   	cmd="$cmd -p '$_user_password_expire'"

# Create home directory if desired
			   [ "${user_home_create:-$msg_no}" != "$msg_no" ] &&
			   	f_user_create_homedir "$user_name"

# Copy dotfiles if desired
			   [ "${user_dotfiles_create:-$msg_no}" != \
			     "$msg_no" ] && f_user_copy_dotfiles "$user_name"

break # to success
			   ;;
			1) # Login (select different login from list)
			   f_dialog_menu_user_list "$user_name" || continue
			   f_dialog_menutag_fetch mtag

[ "$mtag" = "X $msg_exit" ] && continue

if ! f_input_user "$mtag"; then
			   	f_show_err "$msg_login_not_found" "$mtag"
			   	# Attempt to fall back to previous selection
			   	f_input_user "$input" || return $FAILURE
			   else
			   	input="$mtag"
			   fi
			   title="$msg_edit_view $msg_user: $user_name"
			   ;;
			2) # Full Name
			   f_dialog_input_gecos user_gecos "$user_gecos" &&
			   	[ ! "$user_gecos" ] && null_gecos=1 ;;
			3) # Password
			   f_dialog_input_password \
			   	user_password user_password_disable ;;
			4) # User ID
			   f_dialog_input_uid user_uid "$user_uid" ;;
			5) # Group ID
			   f_dialog_input_gid user_gid "$user_gid" ;;
			6) # Member of Groups
			   f_dialog_input_member_groups \
			   	user_member_groups "$user_member_groups" &&
			   	[ ! "$user_member_groups" ] &&
			   	null_members=1 ;;
			7) # Login Class
			   f_dialog_input_class user_class "$user_class" &&
			   	[ ! "$user_class" ] && null_class=1 ;;
			8) # Password Expires On
			   f_dialog_input_expire_password \
			   	user_password_expire "$user_password_expire" &&
			   	[ ! "$user_password_expire" ] &&
			   	no_password_expire=1 ;;
			9) # Account Expires On
			   f_dialog_input_expire_account \
			   	user_account_expire "$user_account_expire" &&
			   	[ ! "$user_account_expire" ] &&
			   	no_account_expire=1 ;;
			A) # Home Directory
			   f_dialog_input_home_dir \
			   	user_home_dir "$user_home_dir" ;;
			B) # Shell
			   f_dialog_input_shell user_shell "$user_shell" ;;
			C) # Create Home Directory?
			   if [ "${user_home_create:-$msg_no}" != "$msg_no" ]
			   then
			   	user_home_create="$msg_no"
			   else
			   	user_home_create="$msg_yes"
			   fi ;;
			D) # Create Dotfiles?
			   if [ "${user_dotfiles_create:-$msg_no}" != \
			        "$msg_no" ]
			   then
			   	user_dotfiles_create="$msg_no"
			   else
			   	user_dotfiles_create="$msg_yes"
			   fi ;;
			esac
		done
	else
		local var
		for var in account_expire class gecos gid home_dir \
			member_groups name password_expire shell uid \
		; do
			local _user_$var
			eval f_shell_escape \"\$user_$var\" _user_$var
		done

# Form the command
		local cmd="pw usermod -n '$_user_name'"
		[ "$user_gid"      ] && cmd="$cmd -g '$_user_gid'"
		[ "$user_home_dir" ] && cmd="$cmd -d '$_user_home_dir'"
		[ "$user_shell"    ] && cmd="$cmd -s '$_user_shell'"
		[ "$user_uid"      ] && cmd="$cmd -u '$_user_uid'"
		[ "$user_account_expire" -o "$no_account_expire" ] &&
			cmd="$cmd -e '$_user_account_expire'"
		[ "$user_class" -o "$null_class" ] &&
			cmd="$cmd -L '$_user_class'"
		[ "$user_gecos" -o "$null_gecos" ] &&
			cmd="$cmd -c '$_user_gecos'"
		[ "$user_member_groups" -o "$null_members" ] &&
			cmd="$cmd -G '$_user_member_groups'"
		[ "$user_password_expire" -o "$no_password_expire" ] &&
			cmd="$cmd -p '$_user_password_expire'"

# Create home directory if desired
		[ "${user_home_create:-$msg_no}" != "$msg_no" ] &&
			f_user_create_homedir "$user_name"

# Copy dotfiles if desired
		[ "${user_dotfiles_create:-$msg_no}" != "$msg_no" ] &&
			f_user_copy_dotfiles "$user_name"
	fi

f_dialog_title "$title"
	$alert "$msg_login_updated"
	f_dialog_title_restore
	[ "$no_confirm" -a "$USE_DIALOG" ] && sleep 1

return $SUCCESS
}

############################################################ MAIN

f_dprintf "%s: Successfully loaded." usermgmt/user.subr

fi # ! $_USERMGMT_USER_SUBR

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File : BlackDragon /hide.php

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.	dir	-	0/0	0755	2024-04-03 10:33:46
..	dir	-	0/0	0755	2024-04-03 10:33:46
group.subr	text/plain	15.36 KB	0/0	0444	2024-04-03 10:33:46
group_input.subr	text/plain	18.18 KB	0/0	0444	2024-04-03 10:33:46
user.subr	text/plain	39.76 KB	0/0	0444	2024-04-03 10:33:46
user_input.subr	text/plain	41.88 KB	0/0	0444	2024-04-03 10:33:46