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#!/usr/bin/perl
# save_user.cgi
# Saves or creates a new user. If the changes require moving of the user's
# home directory or changing file ownerships, do that as well
require './user-lib.pl';
use Time::Local;
&error_setup($text{'usave_err'});
&ReadParse();
# Check for buttons at end of user form, redirect if needed
if ($in{'list'}) {
&redirect("list_logins.cgi?username=".&urlize($in{'old'}));
return;
}
elsif ($in{'mailboxes'}) {
&redirect("../mailboxes/list_mail.cgi?user=".&urlize($in{'old'}));
return;
}
elsif ($in{'switch'}) {
&redirect("../usermin/switch.cgi?user=".&urlize($in{'old'}));
return;
}
elsif ($in{'delete'}) {
&redirect("delete_user.cgi?user=".&urlize($in{'old'}));
return;
}
# Build list of used UIDs and GIDs
&build_user_used(\%used);
&build_group_used(\%used) if ($config{'new_user_gid'});
&build_group_used(\%gused);
# Strip out \n characters in inputs
$in{'real'} =~ s/\r|\n//g;
$in{'user'} =~ s/\r|\n//g;
$in{'user'} =~ s/\0.*$//; # some people reports \0 in usernames!
$in{'pass'} =~ s/\r|\n//g;
$in{'encpass'} =~ s/\r|\n//g;
$in{'home'} =~ s/\r|\n//g;
$in{'gid'} =~ s/\r|\n//g;
$in{'uid'} =~ s/\r|\n//g;
$in{'uid'} = int($in{'uid'});
$in{'othersh'} =~ s/\r|\n//g;
# Validate username
$user{'user'} = $in{'user'};
$in{'user'} =~ /^[^:\t]+$/ ||
&error(&text('usave_ebadname', $in{'user'}));
$err = &check_username_restrictions($in{'user'});
&error($err) if ($err);
&lock_user_files();
@ulist = &list_users();
@glist = &list_groups();
if ($in{'old'} ne "") {
# Get old user info
($ouser_hash) = grep { $_->{'user'} eq $in{'old'} } @ulist;
$ouser_hash || &error($text{'uedit_egone'});
%ouser = %$ouser_hash;
if (!$access{'urename'} && $ouser{'user'} ne $user{'user'}) {
&error($text{'usave_erename'});
}
$user{'olduser'} = $ouser{'user'};
if ($user{'user'} ne $ouser{'user'}) {
foreach $ou (@ulist) {
&error(&text('usave_einuse', $in{'user'}))
if ($ou->{'user'} eq $in{'user'});
}
$access{'uedit_mode'} == 2 && &error($text{'usave_erename'});
$renaming = 1;
}
&can_edit_user(\%access, \%ouser) || &error($text{'usave_eedit'});
}
else {
# check new user details
$access{'ucreate'} || &error($text{'usave_ecreate'});
foreach $ou (@ulist) {
&error(&text('usave_einuse', $in{'user'}))
if ($ou->{'user'} eq $in{'user'});
}
}
if (($in{'old'} eq '' || $user{'user'} ne $ouser{'user'}) &&
$config{'alias_check'} && &foreign_check("sendmail")) {
# Check if the new username conflicts with a sendmail alias
&foreign_require("sendmail", "sendmail-lib.pl");
&foreign_require("sendmail", "aliases-lib.pl");
local $conf = &foreign_call("sendmail", "get_sendmailcf");
local $afiles = &foreign_call("sendmail", "aliases_file", $conf);
foreach $a (&foreign_call("sendmail", "list_aliases", $afiles)) {
&error(&text('usave_einuse_a', $in{'user'}))
if ($a->{'name'} eq $in{'user'});
}
}
# Validate and store basic inputs
if (!$in{'uid_def'} || $in{'old'} ne '') {
# Only do UID checks if not automatic
$in{'uid'} =~ /^\-?[0-9]+$/ || &error(&text('usave_euid', $in{'uid'}));
if (!%ouser || $ouser{'uid'} != $in{'uid'}) {
!$access{'lowuid'} || $in{'uid'} >= $access{'lowuid'} ||
&error(&text('usave_elowuid', $access{'lowuid'}));
!$access{'hiuid'} || $in{'uid'} <= $access{'hiuid'} ||
&error(&text('usave_ehiuid', $access{'hiuid'}));
}
if (!$access{'uuid'} && %ouser && $ouser{'uid'} != $in{'uid'}) {
&error($text{'usave_euuid'});
}
if (!$access{'umultiple'}) {
foreach $ou (@ulist) {
if ($ou->{'uid'} == $in{'uid'} &&
$ou->{'user'} ne $ouser{'user'}) {
&error(&text('usave_euidused',
$ou->{'user'}, $in{'uid'}));
}
}
}
}
elsif ( $in{'uid_def'} eq '1' ) {
# Can assign UID here
$in{'uid'} = int($config{'base_uid'} > $access{'lowuid'} ?
$config{'base_uid'} : $access{'lowuid'});
while($used{$in{'uid'}}) {
$in{'uid'}++;
}
if ($access{'hiuid'} && $in{'uid'} > $access{'hiuid'}) {
# Out of UIDs!
&error($text{'usave_ealluid'});
}
}
elsif ( $in{'uid_def'} eq '2' ) {
# Can calculate UID here
if ( $config{'uid_calc'} ) {
$in{'uid'} = &mkuid($in{'user'});
} else {
$in{'uid'} = &berkeley_cksum($in{'user'});
}
&error("Unable to calculate UID, invalid user name specified") if ( $in{'uid'} lt 0 );
while($used{$in{'uid'}}) {
$in{'uid'}++;
}
if ($access{'hiuid'} && $in{'uid'} > $access{'hiuid'}) {
# Out of UIDs!
&error($text{'usave_ealluid'});
}
}
$in{'real'} =~ /^[^:]*$/ || &error(&text('usave_ereal', $in{'real'}));
if ($in{'shell'} eq "*") { $in{'shell'} = $in{'othersh'}; }
if ($access{'shells'} ne "*") {
if (&indexof($in{'shell'}, split(/\s+/, $access{'shells'})) < 0 &&
(!%ouser || $in{'shell'} ne $ouser{'shell'})) {
&error(&text('usave_eshell', $in{'shell'}));
}
}
$user{'uid'} = $in{'uid'};
if ($in{'old'} ne "" || !$in{'gidmode'}) {
# Selecting existing group
$user{'gid'} = &my_getgrnam($in{'gid'});
if ($user{'gid'} eq "") { &error(&text('usave_egid', $in{'gid'})); }
$grp = $in{'gid'};
}
else {
# Creating a new group
$access{'gcreate'} || &error($text{'usave_egcreate'});
if ($in{'gidmode'} == 2) {
# New group has same name as user
$in{'newgid'} = $in{'user'};
}
else {
# New group has arbitrary name
$in{'newgid'} =~ /^[^: \t]+$/ ||
&error(&text('gsave_ebadname', $in{'newgid'}));
}
foreach $og (@glist) {
&error(&text('usave_einuseg', $in{'newgid'}))
if ($og->{'group'} eq $in{'newgid'});
}
$grp = $in{'newgid'};
}
if ($config{'extra_real'}) {
$in{'real'} =~ /^[^:,]*$/ || &error(&text('usave_ereal', $in{'real'}));
$in{'office'} =~ /^[^:,]*$/ || &error($text{'usave_eoffice'});
$in{'workph'} =~ /^[^:,]*$/ || &error($text{'usave_eworkph'});
$in{'homeph'} =~ /^[^:,]*$/ || &error($text{'usave_ehomeph'});
$user{'real'} = join(",", $in{'real'}, $in{'office'}, $in{'workph'},
$in{'homeph'});
$user{'real'} .= ",$in{'extra'}" if ($in{'extra'});
}
else {
$user{'real'} = $in{'real'};
}
if ($config{'real_base'} &&
$user{'home'} eq &auto_home_dir($config{'home_base'},
$ouser{'user'}, $grp)) {
# Work out old real home
$old_real_home = &auto_home_dir($config{'real_base'},
$ouser{'user'}, $grp);
}
if ($access{'autohome'}) {
# Home directory is forced to automatic
if ($in{'new'} || $ouser{'user'} ne $user{'user'}) {
$user{'home'} = &auto_home_dir($access{'home'}, $in{'user'},
$grp);
$real_home = &auto_home_dir($config{'real_base'}, $in{'user'},
$grp) if ($config{'real_base'});
}
else {
$user{'home'} = $ouser{'home'};
}
}
elsif ($config{'home_base'} && $in{'home_base'}) {
# Automatic home directory option chosen
$user{'home'} = &auto_home_dir($config{'home_base'}, $in{'user'},
$grp);
$real_home = &auto_home_dir($config{'real_base'}, $in{'user'},
$grp) if ($config{'real_base'});
}
else {
# Manual home directory chosen
$user{'home'} = $in{'home'};
}
$real_home ||= $user{'home'};
if (!$access{'autohome'}) {
$user{'home'} =~ /^\// || &error(&text('usave_ehome', $in{'home'}));
if (!&is_under_directory($access{'home'}, $user{'home'})) {
&error(&text('usave_ehomepath', $user{'home'}));
}
}
$user{'shell'} = $in{'shell'};
@sgnames = $config{'secmode'} == 2 ? &split_quoted_string($in{'sgid'})
: split(/\r?\n/, $in{'sgid'});
foreach $gname (@sgnames) {
$ingroup{$gname}++;
$gid = &my_getgrnam($gname);
defined($gid) || &error(&text('usave_esgname', $gname));
push(@sgids, $gid);
}
if ($access{'ugroups'} ne "*") {
if ($in{'old'} ne "") {
# existing users can only be added to or removed from
# allowed groups
if ($ouser{'gid'} != $user{'gid'}) {
&can_use_group(\%access, $in{'gid'}) ||
&error(&text('usave_eprimary', $in{'gid'}));
local $og = &my_getgrgid($ouser{'gid'});
&can_use_group(\%access, $og) ||
&error(&text('usave_eprimaryr', $og));
}
foreach $g (@glist) {
local @mems = split(/,/ , $g->{'members'});
local $idx = &indexof($ouser{'user'}, @mems);
if ($ingroup{$g->{'group'}} && $idx<0 &&
!&can_use_group(\%access, $g->{'group'})) {
&error(&text('usave_esecondary',
$g->{'group'}));
}
elsif (!$ingroup{$g->{'group'}} && $idx>=0 &&
!&can_use_group(\%access, $g->{'group'})) {
&error(&text('usave_esecondaryr',
$g->{'group'}));
}
}
}
elsif (!$in{'gidmode'}) {
# new users can only be added to allowed groups
# This is skipped if we are creating a new group for
# new users
&can_use_group(\%access, $in{'gid'}) ||
&error(&text('usave_eprimary', $in{'gid'}));
foreach $gname (@sgnames) {
&can_use_group(\%access, $gname) ||
&error(&text('usave_esecondary', $group));
}
}
}
# Store password input
if ($in{'passmode'} == 0) {
# Password is blank
if (!$config{'empty_mode'}) {
local $err = &check_password_restrictions("", $user{'user'},
$in{'old'} eq '' ? 'none' : \%ouser);
&error($err) if ($err);
}
$user{'pass'} = "";
}
elsif ($in{'passmode'} == 1) {
# Password is locked
$user{'pass'} = $config{'lock_string'};
}
elsif ($in{'passmode'} == 2) {
# Specific encrypted password entered, or possibly no change
$user{'pass'} = $in{'encpass'};
}
elsif ($in{'passmode'} == 3) {
# Normal password entered - check restrictions
local $err = &check_password_restrictions($in{'pass'}, $user{'user'},
$in{'old'} eq '' ? 'none' : \%ouser);
&error($err) if ($err);
$user{'pass'} = &encrypt_password($in{'pass'});
}
if (&supports_temporary_disable() &&
$in{'disable'} && ($in{'passmode'} == 2 || $in{'passmode'} == 3)) {
$user{'pass'} = $disable_string.$user{'pass'};
}
$pft = &passfiles_type();
if ($pft == 2 || $pft == 5) {
if ($access{'peopt'}) {
# Validate shadow-password inputs
$in{'min'} =~ /^\-?[0-9]*$/ ||
&error(&text('usave_emin', $in{'min'}));
$in{'max'} =~ /^\-?[0-9]*$/ ||
&error(&text('usave_emax', $in{'max'}));
$user{'min'} = $in{'min'};
$user{'max'} = $in{'max'};
if ($pft == 2) {
if ($in{'expired'} ne "" && $in{'expirem'} ne ""
&& $in{'expirey'} ne "") {
eval { $expire = timelocal(0, 0, 12,
$in{'expired'},
$in{'expirem'}-1,
$in{'expirey'}-1900); };
if ($@) { &error($text{'usave_eexpire'}); }
$expire = int($expire / (60*60*24));
}
else { $expire = ""; }
$user{'expire'} = $expire;
$in{'warn'} =~ /^\-?[0-9]*$/ ||
&error(&text('usave_ewarn', $in{'warn'}));
$in{'inactive'} =~ /^\-?[0-9]*$/ ||
&error(&text('usave_einactive', $in{'inactive'}));
$user{'warn'} = $in{'warn'};
$user{'inactive'} = $in{'inactive'};
}
}
else {
$user{'expire'} = $ouser{'expire'};
$user{'min'} = $ouser{'min'};
$user{'max'} = $ouser{'max'};
if ($pft == 2) {
$user{'warn'} = $ouser{'warn'};
$user{'inactive'} = $ouser{'inactive'};
}
}
$daynow = int(time() / (60*60*24));
$user{'change'} = $in{'forcechange'} ? 0 :
$pft == 5 && $in{'ask'} ? 0 :
!%ouser ? $daynow :
$in{'passmode'} == 3 ? $daynow :
$in{'passmode'} == 2 &&
$user{'pass'} ne $ouser{'pass'} ? $daynow :
$ouser{'change'};
}
elsif ($pft == 1 || $pft == 6) {
if ($access{'peopt'}) {
# Validate BSD-password inputs
if ($in{'expired'} ne "" && $in{'expirem'} ne ""
&& $in{'expirey'} ne "") {
eval { $expire = timelocal(59, $in{'expiremi'},
$in{'expireh'},
$in{'expired'},
$in{'expirem'}-1,
$in{'expirey'}-1900); };
if ($@) { &error($text{'usave_eexpire'}); }
}
else { $expire = ""; }
if ($in{'changed'} ne "" && $in{'changem'} ne ""
&& $in{'changey'} ne "") {
eval { $change = timelocal(59, $in{'changemi'},
$in{'changeh'},
$in{'changed'},
$in{'changem'}-1,
$in{'changey'}-1900); };
if ($@) { &error($text{'usave_echange'}); }
}
else { $change = ""; }
$in{'class'} =~ /^([^: ]*)$/ ||
&error(&text('usave_eclass', $in{'class'}));
$user{'expire'} = $expire;
$user{'change'} = $change;
$user{'class'} = $in{'class'};
}
else {
$user{'expire'} = $ouser{'expire'};
$user{'change'} = $ouser{'change'};
$user{'class'} = $ouser{'class'};
}
}
elsif ($pft == 4) {
# Validate AIX-style password inputs
if ($in{'expire_def'} == 1) {
# System default expiry date
$expire = undef;
}
elsif ($in{'expire_def'} == 2) {
# Never expires
$expire = "0";
}
else {
# Add a leading zero if only 1 digit long
$in{'expirem'} =~ /^\d+$/ && $in{'expired'} =~ /^\d+$/ &&
$in{'expireh'} =~ /^\d+$/ && $in{'expiremi'} =~ /^\d+$/ &&
$in{'expirey'} =~ /^\d+$/ || &error($text{'usave_eexpire'});
$in{'expirem'} =~ s/^(\d)$/0$1/;
$in{'expired'} =~ s/^(\d)$/0$1/;
$in{'expireh'} =~ s/^(\d)$/0$1/;
$in{'expiremi'} =~ s/^(\d)$/0$1/;
# Only use the last two digits of the year
$in{'expirey'} =~ s/^\d\d(\d\d)$/$1/;
# If the user didn't choose the hour and min make them 01
$in{'expireh'} = "01" if $in{'expireh'} eq "";
$in{'expiremi'} = "01" if $in{'expiremi'} eq "";
$expire="$in{'expirem'}$in{'expired'}$in{'expireh'}$in{'expiremi'}$in{'expirey'}";
}
if ($access{'peopt'}) {
$user{'admin'} = $in{'flags'} =~ /admin/;
$user{'admchg'} = $in{'flags'} =~ /admchg/;
$user{'nocheck'} = $in{'flags'} =~ /nocheck/;
$user{'expire'} = $expire;
$user{'min'} = $in{'min_def'} ? undef : $in{'min'};
$user{'max'} = $in{'max_def'} ? undef : $in{'max'};
$user{'warn'} = $in{'warn_def'} ? undef : $in{'warn'};
}
else {
$user{'admin'} = $ouser{'admin'};
$user{'admchg'} = $ouser{'admchg'};
$user{'nocheck'} = $ouser{'nocheck'};
$user{'expire'} = $ouser{'expire'};
$user{'min'} = $ouser{'min'};
$user{'max'} = $ouser{'max'};
$user{'warn'} = $ouser{'warn'};
}
$user{'change'} = !%ouser ? time() :
$in{'passmode'} == 3 ? time() :
$user{'pass'} ne $ouser{'pass'} ? time() :
$ouser{'change'};
}
if (%ouser) {
# We are changing an existing user
if ($ouser{'uid'} != $user{'uid'}) {
$changing_uid = 1;
}
if ($ouser{'gid'} != $user{'gid'}) {
$changing_gid = 1;
}
if ($ouser{'home'} ne $user{'home'}) {
$changing_homedir = 1;
}
$in{'old'} = $ouser{'user'};
# Force defaults for save options if necessary
$in{'movehome'} = !$access{'movehome'} if ($access{'movehome'} != 1);
$in{'chuid'} = !$access{'chuid'} if ($access{'chuid'} != 1);
$in{'chgid'} = !$access{'chgid'} if ($access{'chgid'} != 1);
$in{'others'} = !$access{'mothers'} if ($access{'mothers'} != 1);
# Run the pre-change command
&set_user_envs(\%user, 'MODIFY_USER',
$in{'passmode'} == 3 ? $in{'pass'} : "", \@sgids);
$merr = &making_changes();
&error(&text('usave_emaking', "<tt>$merr</tt>")) if (defined($merr));
# Move the home directory if needed
if ($changing_homedir && $in{'movehome'}) {
&error($text{'usave_efromroot'}) if ($ouser{'home'} eq "/");
&error($text{'usave_etoroot'}) if ($user{'home'} eq "/");
if (-d $ouser{'home'} && !-e $user{'home'}) {
# Move home directory if the old one exists and
# the new one does not.
if ($real_home && $old_real_home) {
# Move real home dir
$out = &backquote_logged(
"mv ".quotemeta($old_real_home)." ".
quotemeta($real_home)." 2>&1");
}
else {
$out = &backquote_logged(
"mv ".quotemeta($ouser{'home'})." ".
quotemeta($user{'home'})." 2>&1");
}
if ($?) { &error(&text('usave_emove', $out)); }
}
}
# Change GID on files if needed
if ($changing_gid && $in{'chgid'}) {
if ($in{'chgid'} == 1) {
&recursive_change($user{'home'}, $ouser{'uid'},
$ouser{'gid'}, -1, $user{'gid'});
}
else {
&recursive_change("/", $ouser{'uid'},
$ouser{'gid'}, -1, $user{'gid'});
}
}
# Change UID on files if needed
if ($changing_uid && $in{'chuid'}) {
if ($in{'chuid'} == 1) {
&recursive_change($user{'home'}, $ouser{'uid'},
-1, $user{'uid'}, -1);
}
else {
&recursive_change("/", $ouser{'uid'},
-1, $user{'uid'}, -1);
}
}
# Update user details
$user{'passmode'} = $in{'passmode'};
if ($in{'passmode'} == 2 && $user{'pass'} eq $ouser{'pass'}) {
# not changing password
$user{'passmode'} = 4;
}
$user{'plainpass'} = $in{'pass'} if ($in{'passmode'} == 3);
&modify_user(\%ouser, \%user);
# Rename group if needed and if possible
if ($user{'user'} ne $ouser{'user'} &&
$user{'gid'} == $ouser{'gid'} &&
$in{'grename'}) {
($group) = grep { $_->{'gid'} == $user{'gid'} } &list_groups();
if ($group->{'group'} eq $ouser{'user'} &&
&can_edit_group(\%access, $group)) {
# Do the rename
$ogroup = { %$group };
$group->{'group'} = $user{'user'};
&modify_group($ogroup, $group);
}
}
}
else {
# Force defaults for save options if necessary
$in{'makehome'} = !$access{'makehome'} if ($access{'makehome'} != 1);
$in{'copy_files'} = !$access{'copy'} if ($access{'copy'} != 1 &&
$config{'user_files'} =~ /\S/);
$in{'others'} = !$access{'cothers'} if ($access{'cothers'} != 1);
# Run the pre-change command
&set_user_envs(\%user, 'CREATE_USER',
$in{'passmode'} == 3 ? $in{'pass'} : "", \@sgids);
$merr = &making_changes();
&error(&text('usave_emaking', "<tt>$merr</tt>")) if (defined($merr));
# Create the home directory
if ($in{'makehome'}) {
&create_home_directory(\%user, $real_home);
$made_home = 1;
}
if ($in{'gidmode'}) {
# New group for the new user ..
if ($config{'new_user_gid'}) {
# gid is the same as the uid
$newgid = $user{'uid'};
}
else {
# find the first free GID above the base
$newgid = int($config{'base_gid'} > $access{'lowgid'} ?
$config{'base_gid'} : $access{'lowgid'});
while($gused{$newgid}) {
$newgid++;
}
}
# create a new group for this user
$created_group = $group{'group'} = $in{'newgid'};
$user{'gid'} = $group{'gid'} = $newgid;
&create_group(\%group);
$created_group = \%group;
}
if ($made_home) {
&set_ownership_permissions($user{'uid'}, $user{'gid'},
undef, $real_home) ||
&error(&text('usave_echown', $!));
}
# Save user details
$user{'passmode'} = $in{'passmode'};
$user{'plainpass'} = $in{'pass'} if ($in{'passmode'} == 3);
&create_user(\%user);
# Copy files into user's directory
if ($in{'copy_files'} && $in{'makehome'}) {
local $uf = &get_skel_directory(\%user, $in{'gid'});
©_skel_files($uf, $real_home, $user{'uid'}, $user{'gid'});
}
}
if ($config{'secmode'} != 1) {
# Update secondary groups
foreach $g (@glist) {
@mems = split(/,/ , $g->{'members'});
if ($renaming) {
$idx = &indexof($ouser{'user'}, @mems);
if ($ingroup{$g->{'group'}} && $idx<0) {
# Need to add to the group
push(@mems, $user{'user'});
}
elsif (!$ingroup{$g->{'group'}} && $idx>=0) {
# Need to remove from the group
splice(@mems, $idx, 1);
}
elsif ($idx >= 0) {
# Need to rename in group
$mems[$idx] = $user{'user'};
}
else { next; }
}
else {
$idx = &indexof($user{'user'}, @mems);
if ($ingroup{$g->{'group'}} && $idx<0) {
# Need to add to the group
push(@mems, $user{'user'});
}
elsif (!$ingroup{$g->{'group'}} && $idx>=0) {
# Need to remove from the group
splice(@mems, $idx, 1);
}
else { next; }
}
%newg = %$g;
$newg{'members'} = join(',', @mems);
&modify_group($g, \%newg);
}
}
&unlock_user_files();
&made_changes();
# Run other modules' scripts
if ($in{'others'}) {
$error_must_die = 1;
eval {
if (%ouser) {
&other_modules("useradmin_modify_user", \%user,\%ouser);
}
else {
&other_modules("useradmin_create_user", \%user);
}
if ($created_group) {
&other_modules("useradmin_create_group",
$created_group);
}
};
$error_must_die = 0;
$others_err = $@;
}
delete($in{'pass'});
delete($in{'encpass'});
&webmin_log(%ouser ? 'modify' : 'create', 'user', $in{'user'}, \%in);
&webmin_log('create', 'group', $created_group->{'group'}, \%in)
if ($created_group);
# Bounce back to the list, if everything worked
&error(&text('usave_eothers', $others_err)) if ($others_err);
&redirect("index.cgi?mode=users");
|