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freenx-server/nxsetup
geos_one beb2263461 New upstream version 2.1.3
2025-08-08 20:28:57 +02:00

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#!/bin/bash
# Coypright (c) 2004-2005 by Fabian Franz <freenx@fabian-franz.de>.
# 2005 by Jon Severinsson <jonno@users.berlios.de>.
# 2023 by Dmitry Borisov <i@dimbor.ru>
#
# License: GNU GPL, version 2
HELP="no"; INSTALL="no"; SETUP_NOMACHINE_KEY="no"
SETUP_UID=""; SETUP_GID=""; LOCAL_USER_OPTION=""
# luseradd / luserdel are only available on RedHat
[ -f /etc/redhat-release ] && LOCAL_USER_OPTION="yes"
# altlinux have /etc/redhat-release file but don't have luseradd / luserdel commands
[ -f /etc/altlinux-release ] && LOCAL_USER_OPTION="no"
SETUP_LOCAL_USER="no"; CLEAN="no"; UNINSTALL="no"
PURGE="no"; BUILD_KNOWN_HOSTS="yes"; AUTOMATIC="no"
IGNORE_ERRORS="no"; MKDB="no"
if [ $UID -ne 0 ]; then
echo "You need to be root to use this program."
exit 1
fi
parse_cmdline() {
while [ "$1" ]; do
case "$1" in
--help) HELP="yes"; shift ;;
--install) INSTALL="yes"; shift ;;
--mkdb|mkdb|--reload) MKDB="yes"; shift ;;
--ignore-errors) IGNORE_ERRORS="yes"; shift;;
--setup-nomachine-key) SETUP_NOMACHINE_KEY="yes"; shift ;;
--dont-build-known-hosts) BUILD_KNOWN_HOSTS="no"; shift;;
--uid) SETUP_UID=$2; shift 2 ;;
--gid) SETUP_GID=$2; shift 2 ;;
--localuser) SETUP_LOCAL_USER="yes"; shift;;
--clean) CLEAN="yes"; shift ;;
--uninstall) UNINSTALL="yes"; shift ;;
--purge) PURGE="yes"; shift ;;
--auto) AUTOMATIC="yes"; shift ;;
--test) TEST="yes"; shift ;;
--) shift ; break ;;
*) echo "Invalid flag $1" ; HELP="yes"; shift ; break ;;
esac
done
[ "$TEST" = "yes" ] && return # If we just test, we can return directly
#Check for invalid combinations:
[ "$SETUP_LOCAL_USER" = "yes" -a -z "$LOCAL_USER_OPTION" ] && HELP="yes"
[ "$INSTALL" = "yes" -a "$UNINSTALL" = "yes" ] && HELP="yes"
[ "$INSTALL" = "yes" -a "$CLEAN" = "no" -a "$PURGE" = "yes" ] && HELP="yes"
[ "$UNINSTALL" = "yes" ] && [ "$SETUP_NOMACHINE_KEY" = "yes" -o \
-n "$SETUP_UID" -o "$CLEAN" = "yes" ] && HELP="yes"
[ "$UNINSTALL" = "yes" -a "$CLEAN" = "yes" ] && HELP="yes"
if [ "$INSTALL" = "no" -a "$UNINSTALL" = "no" -a \
"$AUTOMATIC" = "no" -a "$HELP" = "no" -a "$MKDB" = "no" ]; then
HELP="yes"
fi
[ "$INSTALL" = "yes" -o "$AUTOMATIC" = "yes" ] && MKDB="yes"
if [ "$HELP" = "yes" ]; then
echo "nxsetup - Setup the FreeNX server."
echo "Syntax: nxsetup --help"
echo " nxsetup --reload"
echo " nxsetup --mkdb"
echo " nxsetup --test [--ignore-errors]"
echo " nxsetup --install [--setup-nomachine-key] [--uid <nummber>] [--clean [--purge]]"
echo " nxsetup --uninstall [--purge]"
echo
echo " --help Display this help message."
echo " --reload Reload nxsettings db."
echo " --mkdb Reload nxsettings db."
echo " --test Test the configuration and connection to localhost NX Server."
echo " --install Install necessary files and add the special user \"nx\"."
echo " --ignore-errors Check for false configuration, but don't complain."
echo " --setup-nomachine-key Allow login with the key shipped with the NoMachine"
echo " client. This is fairly secure, and it simplifies the "
echo " configuration of clients. (Using a custom key pair."
echo " increases security even more, but complicates the"
echo " configuration of clients.)"
echo " Use this option at your own risk."
echo " --uid <number> Give the uid <number> to the user \"nx\"."
echo " --gid <number> Give the gid <number> to the user \"nx\"."
[ -n "$LOCAL_USER_OPTION" ] && \
echo " --localuser The special user \"nx\" will be created locally using"
echo " \"luseradd\", for use in NIS and NISplus environments."
echo " --clean Perform an uninstallation prior to installation."
echo " --uninstall Remove log and session files, as well as the special"
echo " user \"nx\"."
echo " --purge Remove extra configuration files and ssh keys when"
echo " performing a \"--uninstall\"."
echo " Note that node.conf will always be saved."
echo " --auto Perform automatic installation without testing or asking."
exit 0
fi
#Undocumented
#
# --dont-build-known-hosts For system without /etc/ssh/ssh_host_key.rsa.pub and anyway
# expect should handle nx-users known-hosts keys so why borther
# in nxsetup?
if [ "$INSTALL" = "yes" -a "$AUTOMATIC" = "no" -a \
"$SETUP_NOMACHINE_KEY" = "no" ]; then
echo "------> It is recommended that you use the NoMachine key for"
echo " easier setup. If you answer \"y\", FreeNX creates a custom"
echo " KeyPair and expects you to setup your clients manually. "
echo " \"N\" is default and uses the NoMachine key for installation."
echo ""
echo -n " Do you want to use your own custom KeyPair? [y/N] "
read -n 1 CHOICE
[ "$CHOICE" = "y" ] || SETUP_NOMACHINE_KEY="yes"
fi
}
parse_cmdline "$@"
#======================= nxsettings db manipulatios =========================
SHARED_CONFS="/usr/share/freenx-server"
. $SHARED_CONFS/nxfuncs
ex_rules_cols="val_type,val_depend,val_check"; acl_user="#ACL#"
all_cols="user,key,value,$ex_rules_cols"
conf_buf=""; txt_err=""; txt_warn=""; txt_info="";
qs_create_settings="CREATE TABLE IF NOT EXISTS nxsettings.settings(\
user TEXT, key TEXT NOT NULL, value, val_type TEXT, \
val_depend TEXT, val_check TEXT, PRIMARY KEY(user,key));"
keyslst_for_user() {
#arg: [username] [table='settings']
#ret: keynames delimited by '\n'
local qstr res wstr table;
[ -n "$1" ] && wstr="WHERE user='$1'" || wstr="WHERE user IS NULL"
table="settings"; [ -n "$2" ] && table="$2"
qstr="SELECT key FROM $table $wstr;"
res=$(qa_dbe0 "$qstr"); echo "$res"
}
values_str_from_db() {
#args: key <col1,col2...> [username] [table='settings']
local ucond table qstr r a res;
ucond=" IS NULL"; [ -n "$3" -a "$3" != "NULL" ] && ucond="='$3'"
table="settings"; [ -n "$4" ] && table="$4"
qstr="SELECT $2 FROM $table WHERE user$ucond AND key='$1' LIMIT 1;"
r=$(qa_dbe0 "$qstr"); OIFS="$IFS"; IFS='&'; local a=($r)
res="${a[*]}"; IFS="$OIFS"
echo "${res//\"/}"
}
values_update_db() {
#args: key <col1,col2...> <val1&val2...> [username] [table='settings']
local ucond table qstr upd_s ins_s ik0="" iv0="" ik iv;
ucond=" IS NULL"; [ -n "$4" -a "$4" != "NULL" ] && ucond="='$4'"
table="settings"; [ -n "$5" ] && table="$5"
qstr=$(colval_set_or_cond "$2" "$3"); [ -n "$qstr" ] || return
upd_s="UPDATE $table SET $qstr WHERE user$ucond AND key='$1';"
[ -n "$4" ] && { ik0="user,"; iv0="'$4',"; }
qstr=$(colval_set_or_cond "$2" "$3" "INS"); ik=${qstr%&*}; iv=${qstr#*&}
ins_s="INSERT INTO $table($ik0""key,$ik) SELECT $iv0""'$1',$iv WHERE (SELECT Changes()=0);"
#echo "$upd_s" "$ins_s"
q_dbe0 "$upd_s" "$ins_s"
}
# ===========================================================================
parse_conf_buf() {
#args: user [is_defs] [table='settings']
local ex_vals="type depend check" l0 l ukv="" ik="" iv="";
local key val a0 a first cn cv upd_s ins_s v;
local table="settings"; [ -n "$3" ] && table="$3"
while read l0; do
[ -n "$l0" ] || continue
l=($l0); first=${l[0]:0:1}
if [ "$first" = "#" ]; then
[ -z "$2" ] && continue
# parse comment for extras
l[0]=${l[0]:1}
[ "${l[0]}" = "@" ] && { # set extra column
unset l[0];
a0="${l[@]}"; OIFS="$IFS"; IFS=':'; a=($a0); IFS="$OIFS"
cn=$(trim "${a[0]}"); stringinstring "$cn" "$ex_vals" || continue
#cv=$(trim "${a[@]:1}"); # this kills all colons :(
cv=$(trim "${l0#*:}"); cv=$(s2sq "$cv")
ukv="$ukv,val_$cn='$cv'";
ik="$ik,val_$cn"; iv="$iv,'$cv'"
#echo "!$cn !$cv"
}
continue
fi
[[ "${l[0]:0:1}" =~ [[:upper:]] ]] || continue
# there can be more than one char '=' per line
key=$(trim "${l%%=*}"); [ "$l" = "$key" ] && continue
val=$(trim "${l[@]#*=}"); val=$(s2sq "$val")
# fake upsert to db
uk0="user IS NULL AND "; ik0=""; iv0="";
[ -n "$1" ] && { uk0="user='$1' AND "; ik0="user,"; iv0="'$1',"; }
upd_s="UPDATE $table SET value='$val'""$ukv WHERE $uk0""key='$key';"
ins_s="INSERT INTO $table($ik0""key,value""$ik) SELECT $iv0""'$key','$val'$iv WHERE (SELECT Changes()=0);"
q_dbe0 "$upd_s" "$ins_s"
ukv=""; ik=""; iv=""
done <<< "$conf_buf"
}
check_value() {
#args: <key> <value> <type> <cond> <user> [err_log] [ro=""] [table='settings']
local err_log="" msg="" key=$1 val="$2" cond="$4" nval="$2" umsg="";
local mpref="! $umsg""$key = '$val' " notempty="" act="";
local nump='^'"$num_pattern"'$' cl min max a OIFS;
local cnd cval lst nexe ug local mode mask;
local ma set_ug set_mode res st table;
[ -n "$6" ] && err_log=$6; [ -n "$5" -a "$5" != "NULL" ] && umsg="[$5] "
table="settings"; [ -n "$8" ] && table="$8"
stringinstring "notempty" "$cond" && \
{ notempty="1"; cond=$(trim "${cond/notempty/}"); }
stringinstring "perform" "$cond" && \
{ act="1"; cond=$(trim "${cond/perform/}"); }
case "$3" in
bool) [ "$val" = "0" -o "$val" = "1" ] || {
msg="$mpref must be 0/1, forced to;"$'\n'
[ -n "$val" ] && nval="1" || nval="0"
} ;;
int)
[[ $val =~ $nump ]] || {
msg="$mpref must be the number, forced to 0;"$'\n'; nval="0";
}
[ -n "$cond" ] && {
cl=($cond); min="${cl[0]}"; max="${cl[1]}";
[ -n "$min" ] && {
if ! [[ $min =~ $nump ]]; then
min="${!min}"; [[ $min =~ $nump ]] || min=""
fi
}
[ -n "$max" ] && {
if ! [[ $max =~ $nump ]]; then
max="${!max}"; [[ $max =~ $nump ]] || max=""
fi
}
[ -n "$min" ] && ((val<min)) && \
msg="$mpref is less than MIN value $min;"$'\n'
[ -n "$max" ] && ((val>max)) && \
msg="$mpref is greater than MAX value $max;"$'\n'
} ;;
string)
if [ -n "$notempty" ]; then
[ -z "$val" ] && \
msg="$mpref. Is empty! Set it please;"$'\n'
elif [ -n "$cond" ]; then
cnd=($cond); cval=($val);
[ "${cnd[0]}" = "path" ] && { cval[0]=${cval[0]%/*}; cnd[0]="dir"; }
if [ "${cnd[0]}" = "list:" ]; then
OIFS="$IFS"; local IFS='%'; a=($cond); IFS="$OIFS"; lst=${a[1]}
stringinstring "${cval[0]}" "$lst" || \
msg="! $umsg""$key = '${cval[0]}' value is not in ($lst);"$'\n'
elif stringinstring "${cnd[0]}" "dir,exe,file"; then
if [ -z "${cval[0]}" ]; then
msg="$mpref. Is empty! Set it;"$'\n'
else
if [ "${cnd[0]}" = "exe" -a ! -x "${cval[0]}" ]; then
nexe="$(which ${cval[0]} 2>/dev/null)"
[ -n "$nexe" ] && {
cval[0]=$nexe; nval="${cval[@]}"; err_log=""
} || \
msg="! $umsg""$key = '${cval[0]}': file is not executable;"$'\n'
elif [ "${cnd[0]}" = "dir" ]; then
[ -d "${cval[0]}" ] || \
msg="! $umsg""$key = '${cval[0]}': dir is not found;"$'\n'
elif [ "${cnd[0]}" = "file" ]; then
[ -f "${cval[0]}" ] || \
msg="! $umsg""$key = '${cval[0]}': file is not found;"$'\n'
fi
ug=""; mode=""; mask="";
if [ -n "${cnd[1]}" ]; then
for ((i=1; i<${#cnd[*]}; i++)) do # to collect attrs
if [ "${cnd[$i]:0:1}" = "&" ]; then
cnd[$i]=${cnd[$i]:1}; mask="1";
fi
if [[ ${cnd[$i]:0:1} =~ $nump ]]; then
mode=${cnd[$i]};
while [ "${mode:0:1}" = "0" ]; do mode=${mode:1}; done
else ug=${cnd[$i]}
fi
done
ma=($(stat -c '%U:%G %a' "${cval[0]}" 2>/dev/null));
set_ug=""; set_mode=""; res="";
if [ -n "$msg" -a -n "$act" -a "${cnd[0]}" != "exe" ]; then
if [ "${cnd[0]}" = "dir" ]; then
mkdir -p "${cval[0]}" 2>/dev/null
[ -d "${cval[0]}" ] && { set_mode="1"; set_ug="1"; }
else
touch "${cval[0]}" 2>/dev/null
[ -f "${cval[0]}" ] && { set_mode="1"; set_ug="1"; }
fi
[ -n "$set_mode" ] && \
msg=" $umsg""$key = '${cval[0]}': ${cnd[0]} is not found > Created;"$'\n'
else # check file attrs
ma=($(stat -c '%U:%G %a' "${cval[0]}"));
if [ -n "$ug" -a "$ug" != "${ma[0]}" ]; then
msg+="! $umsg""$key = '${cval[0]}': owners [${ma[0]}] is not \"$ug\";"$'\n'
[ -n "$act" ] && set_ug="1"
fi
if [ -n "$mode" ]; then
if [ -n "$mask" ]; then
res=$(printf '%o' $(( 0$mode & 0${ma[1]} )))
[ "$res" = "$mode" ] || {
msg+="! $umsg""$key = '${cval[0]}': mode [${ma[1]}] does not match the mask '$mode';"$'\n'
[ -n "$act" ] && set_mode="1"
}
elif [ "${ma[1]}" != "$mode" ]; then
msg+="! $umsg""$key = '${cval[0]}': mode [${ma[1]}] is not equal '$mode';"$'\n'
[ -n "$act" ] && set_mode="1"
fi
fi
fi
if [ -n "$set_ug" -a -n "$ug" ]; then
msg+="$umsg"" $key = '${cval[0]}' < owners change to '$ug'"
chown $ug "${cval[0]}" 2>/dev/null && st="OK" || st="FAILED"
msg+=" > $st;"$'\n'
fi
if [ -n "$set_mode" -a -n "$mode" ]; then
[ -n "$mask" ] && \
mode=$(printf '%o' $(( 0$mode | 0${ma[1]} )))
msg+="$umsg"" $key = '${cval[0]}' < mode change to '$mode'"
[ "${#mode}" = "3" ] && mode="00$mode"
chmod $mode "${cval[0]}" 2>/dev/null && st="OK" || st="FAILED"
msg+=" > $st;"$'\n'
fi
fi
fi
fi
fi
#msg="$umsg"" key $key ($3)='$val' checking: '$cond'"$'\n'
;;
esac
[ "$val" = "$nval" ] || {
[ -n "$7" ] || \
values_update_db $key "value" "$(s2sq "$nval")" "$5" "$table"
msg+=" $key < '$nval';"$'\n'; val="$nval"
}
[ -n "$5" ] || declare -g $key="$val" # expand not user's vals only ???
[ -n "$msg" ] && {
[ -n "$err_log" ] && txt_err+="$msg" || txt_warn+="$msg"
}
}
check_value_advanced() {
#args: <key> <value> <type> <cond> <user> [err_log] [ro=""] [table='settings']
local err_log=""; [ -n "$6" ] && err_log=$6
local msg="" key=$1 val="$2" nval="$2"
local umsg=""; [ -n "$5" ] && umsg="[$5] "
local table="settings"; [ -n "$8" ] && table="$8"
local mpref="! $umsg""$key = '$val'" ver;
case "$1" in
NX_LICENSE)
ver=$(rematchfn 'NXAGENT - Version ([[:digit:][:punct:]]+)' \
"$($COMMAND_NXAGENT -version 2>&1)") #'
# it was "$(strings $COMMAND_NXAGENT)"
if [ -n "$ver" ]; then
nval=${NX_LICENSE/\%BACKEND\%/$ver}; err_log=""
else msg="$mpref: backend version is not found;"$'\n'
fi
;;
COMMAND_GDM_X_SESSION)
[ ! -x "${val%% *}" ] && {
nval="/etc/X11/Xsession"; err_log=""
}
;;
esac
#echo "# $1($3)='$2' advanced checking." #debug
[ "$val" = "$nval" ] || {
[ -n "$7" ] || \
values_update_db $key "value" "$(s2sq "$nval")" "$5" "$table"
msg+=" $key < '$nval';"$'\n'; val="$nval"
}
[ -n "$4" ] || declare -g $key="$val" # expand not user's vals only ???
[ -n "$msg" ] && {
[ -n "$err_log" ] && txt_err+="$msg" || txt_warn+="$msg"
}
}
check_keyvals() {
#args: [username] [ro=""] [table='settings']
#echo "$(date "+%T.%3N"): $FUNCNAME" #debug
local table="settings"; [ -n "$3" ] && table="$3"
local keys=$(keyslst_for_user "$1" "$table") r a ad;
local value val_type val_depend val_check;
local err_log dep_for_null vdep tdep nval;
for key in $keys; do
#echo "$(date "+%T.%3N"): ----- $key" #debug
r=$(values_str_from_db $key "value,$ex_rules_cols" "$1" "$table")
OIFS="$IFS"; IFS='&'; a=($r); IFS="$OIFS";
value=$(sq2s "${r%%&*}"); val_type=$(sq2s "${a[1]}");
val_depend=$(sq2s "${a[2]}"); val_check=$(sq2s "${a[3]}");
err_log=""; stringinstring "error" "$val_check" && \
{ err_log="1"; val_check=$(trim "${val_check/error/}"); }
# don't check if depend condition is set and not match
dep_for_null=""
[ -n "$val_depend" ] && {
local first=${val_depend:0:1}
[ "$first" = "!" ] && { val_depend=${val_depend:1}; dep_for_null="1"; }
r=$(values_str_from_db $val_depend "value,val_type" "$1" "$table")
OIFS="$IFS"; IFS='&'; ad=($r); IFS="$OIFS"
vdep=${ad[0]}; tdep=${ad[1]}
[ -z "$dep_for_null" ] && {
case "$tdep" in
bool) [ "$vdep" = "1" ] || continue ;;
string) [ -n "$vdep" ] || continue ;;
int) [ "$vdep" -ne "0" ] || continue ;;
esac
} || {
case "$tdep" in
bool) [ "$vdep" = "1" ] && continue ;;
string) [ -n "$vdep" ] && continue ;;
int) [ "$vdep" -ne "0" ] && continue ;;
esac
}
#echo "$key -> $val_depend ($tdep): '$vdep' $dep_for_null"
}
if stringinstring "rt_expand" "$val_check"; then
val_check=$(trim "${val_check/rt_expand/}")
elif [ "$val_type" = "string" ]; then # expand if no rt_expand only
#nval="${value@P}" # value from db (need to "ORDER BY rowid" in keylist)
nval="${!key}" # expands/chg defaults by means 'bash source *.conf'
[ -n "$nval" -a "$value" != "$nval" ] && {
[ -n "$2" ] || \
values_update_db $key "value" "$(s2sq "$nval")" "$1" "$table"
#txt_warn+=" $key ['$value'] < '$nval';"$'\n'
txt_warn+=" $key < '$nval';"$'\n'
value="$nval"
}
fi
stringinstring "advanced" "$val_check" && {
val_check=$(trim "${val_check/advanced/}")
check_value_advanced $key "$value" "$val_type" \
"$val_check" "$1" "$err_log" "$2" "$table"
continue
}
check_value "$key" "$value" "$val_type" \
"$val_check" "$1" "$err_log" "$2" "$table"
#echo "$key ($val_type) /$val_check/: $value"
done
}
parse_defaults() {
#arg: [table='settings']
local table="settings"; [ -n "$1" ] && table="$1"
local confd=$SHARED_CONFS/node.conf.def curd=$(pwd)
echo "Parse default settings in $confd:"; cd $confd
for fn in *.{cnf,conf}; do [ -r $fn ] && . $fn; done
for fn in *.{cnf,conf}; do
[ -r $fn ] || continue; echo -n " $fn ..";
conf_buf="$(< $fn)"; parse_conf_buf "" 1 "$table"; echo " done."
done
cd $curd
}
parse_settings() {
#arg: [table='settings']
local table="settings"; [ -n "$1" ] && table="$1"
local confd="node.conf.d" fn;
echo "Parse system settings in $NX_ETC_DIR:"; curd=$(pwd)
cd $NX_ETC_DIR
for fn in $confd/*.conf node.conf; do [ -r $fn ] && . $fn; done
for fn in $confd/*.conf node.conf; do
[ -r $fn ] || continue; echo -n " $fn ...";
conf_buf="$(< $fn)"; parse_conf_buf "" "" "$table";
echo " done."
done
cd $curd
}
parse_users_settings() {
#arg: [table='settings']
local table="settings"; [ -n "$1" ] && table="$1"
local fn un qstr ukeys key exvals;
echo "Parse users settings:"; curd=$(pwd)
cd $NX_ETC_DIR
for fn in *.conf; do
[ -r $fn ] || continue; un=${fn//.conf/}
getent passwd "$un" >/dev/null || continue
echo -n " $fn ...";
. $fn; conf_buf="$(< $fn)"; parse_conf_buf "$un" "" "$table"
echo -n " check rules for $un ..."
# user extras setup scrutch
ukeys=$(keyslst_for_user "$un" "$table")
for key in $ukeys; do
echo -n " $key ..."
qstr="SELECT $ex_rules_cols FROM "$table""
qstr+=" WHERE user IS NULL AND key='$key' LIMIT 1;"
exvals=$(qa_dbe0 "$qstr"); exvals=${exvals//\"/}
values_update_db $key "$ex_rules_cols" "$exvals" "$un" "$table"
done
done
echo " done."
cd $curd
}
parse_acl() {
#args: filename [table='settings'] userlist grouplist
local table="settings"; [ -n "$2" ] && table="$2"
local un=${1##*/} user; un=${un%%\.*}; user="#$un" # user
local buf l key val val_dep val_chk ns=0 upd_s ins_s v;
local val_type i ca ans s ov a
if [ "$un" = "all" ]; then user="@$un"
elif ! stringinstring "$un" "$3"; then
stringinstring "$un" "$4" && user="*$un" # group
fi
buf="$(< $1)"
#echo $1
while read l; do
l="$(trim "$l")"; ((ns++))
[ -n "$l" ] || continue
[ "${l:0:1}" = "#" ] && continue
#echo "$l" #debug
key="$(trim "${l%%\%\%\%*}")"; key=$(s2sq "$key");
stringinstring "%%%" "$l" && l="$(trim "${l#*\%\%\%}")" || l=""
val="$(trim "${l%%\%\%\%*}")";
if [ "$key" != "@shadow@" ]; then
val=$(s2sq "$val"); val_type=""
stringinstring "%%%" "$l" && l="$(trim "${l#*\%\%\%}")" || l=""
val_dep="$(trim "${l%%\%\%\%*}")"; val_dep=$(s2sq "$val_dep")
else # parse shadow acl
val=$(trim "${val//\,/ }"); ans=($val); ca=${#ans[@]}
val=""; val_type=""; val_dep="";
for ((i=0; i<$ca; i++)) {
s=${ans[i]}
[ "${s:0:1}" != "#" ] && ov=0 || { ov=1; s=${s:1}; }
[ "${s:(-1):1}" != "!" ] && a=1 || { a=0; s=${s::-1}; }
val+="${val:+,}$s"; val_type+="${val_type:+,}$ov";
val_dep+="${val_dep:+,}$a";
}
fi
val_chk=$(printf "%04d" $ns)
#echo "$user; $key; $val; $val_dep; $val_chk"; #continue #debug
# fake upsert to db
upd_s="UPDATE $table SET value='$val',val_type='$val_type', \
val_depend='$val_dep', val_check='$val_chk' WHERE user='$user' AND key='$key';"
ins_s="INSERT INTO $table(user,key,value,val_type,val_depend,val_check) \
SELECT '$user','$key','$val','$val_type','$val_dep','$val_chk' \
WHERE (SELECT Changes()=0);"
q_dbe "$upd_s" "$ins_s"
#echo "$upd_s" "$ins_s" #debug
val=""; val_dep=""; val_chk=""
done <<< "$buf"
}
parse_acl_dir() {
#arg: [table='settings']
local table="settings"; [ -n "$1" ] && table="$1"
local ffn str ulist="" glist=""
while read str; do
str=${str%%:*}; ulist+="${ulist:+$' '}$str"
done <<< "$(getent passwd)"
while read str; do
str=${str%%:*}; glist+="${glist:+$' '}$str"
done <<< "$(getent group)"
echo "Parse $NX_ACL_DIR:";
for ffn in $NX_ACL_DIR/*; do
stringinstring "README" "$ffn" && continue
[ -r $ffn ] || continue; echo -n " ${ffn##*/} ...";
parse_acl "$ffn" "$table" "$ulist" "$glist";
done
echo " done."
}
open_dbe $$
[ ! -f $sq_settings_fn ] && MKDB="yes"
if [ "$MKDB" = "yes" ]; then
table="mem.settings"
echo "$(date "+%T.%3N"): mem.settings mkdb starting"
q_dbe0 "ATTACH DATABASE ':memory:' AS mem;" \
"${qs_create_settings/nxsettings/mem}";
parse_defaults "$table";
parse_settings "$table";
parse_users_settings "$table";
check_keyvals "" "" "$table"
[ -d "$NX_ACL_DIR" ] && parse_acl_dir "$table"
[ -n "$txt_warn" ] && { echo; echo "Checking results:"; echo "$txt_warn"; }
[ -n "$txt_err" ] && { echo; echo "!!! ERRORS !!!"; echo "$txt_err"; }
txt_err=""; txt_warn=""; txt_info="";
echo "$(date "+%T.%3N"): nxsettings mkdb attach"
attach_db "$sq_settings_fn"|| {
echo "Unable to attach $sq_settings_fn"; exit_proc 1; }
q_dbe0 "DROP TABLE IF EXISTS nxsettings.settings;" "$qs_create_settings" \
"INSERT INTO nxsettings.settings($all_cols) SELECT $all_cols FROM $table;"
echo "$(date "+%T.%3N"): nxsettings mkdb stop"
else
attach_db "$sq_settings_fn" ro || {
echo "Unable to attach db file $sq_settings_fn"; exit_proc 1;
}
set_vars_from_db
fi
#============================================================================
run_nscd() {
NSCD="nscd"
if [ -f /var/run/nscd/nscd.pid ]; then
$NSCD "$@" 2>/dev/null || true
fi
}
install_nx() {
if [ ! -f $NX_ETC_DIR/users.id_dsa ]; then
$COMMAND_SSH_KEYGEN -f $NX_ETC_DIR/users.id_dsa -t dsa -N ""
fi
echo "For backward compatibility to Nomachine, freenx works with dss-keys only."
echo "Please add string \"PubkeyAcceptedKeyTypes=+ssh-dss\" in sshd_config"
echo "and ssh_config if required. This is actual for modern openssh servers."
echo -n "Setting up user and group nx ..."
useradd -g nx -G utmp -d /var/lib/nxserver/home/ \
-s /usr/bin/nxserver -c "NX System User" nx 2>/dev/null
echo "done"
echo -n "Setting up $NX_SESS_DIR ..."
chmod 770 $NX_SESS_DIR
echo "done"
echo -n "Setting up $NX_LOGFILE ..."
mkdir -p $(dirname "$NX_LOGFILE")
touch "$NX_LOGFILE"
chmod 660 "$NX_LOGFILE"
echo "done"
echo -n "Setting up known_hosts and $SSH_AUTHORIZED_KEYS ..."
SETUP_NX_KEY="no"
mkdir -p $NX_HOME_DIR/.ssh
chmod 700 $NX_HOME_DIR/ $NX_HOME_DIR/.ssh
if [ ! -f $NX_HOME_DIR/.ssh/$SSH_AUTHORIZED_KEYS -o \
"$SETUP_NOMACHINE_KEY" = "yes" ]; then
SETUP_NX_KEY="yes"
if [ "$SETUP_NOMACHINE_KEY" = "yes" ]; then
cat << EOF >$NX_HOME_DIR/.ssh/$SSH_AUTHORIZED_KEYS
no-port-forwarding,no-agent-forwarding,command="$PATH_BIN/nxserver" ssh-dss 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 root@nettuno
EOF
chmod 600 $NX_HOME_DIR/.ssh/$SSH_AUTHORIZED_KEYS
cat << EOF >$NX_HOME_DIR/.ssh/client.id_dsa.key
-----BEGIN DSA PRIVATE KEY-----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-----END DSA PRIVATE KEY-----
EOF
chmod 600 $NX_HOME_DIR/.ssh/client.id_dsa.key
else
# generate a new key, backup the old and copy it to $SSH_AUTHORIZED_KEYS
$PATH_BIN/nxkeygen
fi
fi
if [ ! -f $NX_HOME_DIR/.ssh/known_hosts -a "$BUILD_KNOWN_HOSTS" = "yes" ]; then
echo -n "127.0.0.1 " > $NX_HOME_DIR/.ssh/known_hosts
if [ -e "/etc/openssh/ssh_host_rsa_key.pub" ] ; then
cat /etc/openssh/ssh_host_rsa_key.pub >> \
$NX_HOME_DIR/.ssh/known_hosts
else
[ -e "/etc/ssh/ssh_host_rsa_key.pub" ] && \
cat /etc/ssh/ssh_host_rsa_key.pub >> $NX_HOME_DIR/.ssh/known_hosts
fi
fi
echo "done"
echo -n "Setting up permissions ..."
chown -R nx:nx /var/lib/nxserver
chown -R nx:nx $NX_SESS_DIR
chown -R nx:nx $NX_HOME_DIR
chown nx:nx "$NX_LOGFILE"
echo "done"
}
test_nx() {
echo ""
echo "----> Testing your nxserver connection ..."
CONNECTION=""
while read -t 3 line; do
echo $line
case "$line" in
*"HELLO NXSERVER - Version $NX_VERSION"*)
CONNECTION="yes"
;;
*"HELLO NXSERVER - Version"*)
echo "Warning: Version mismatch. Expected $NX_VERSION got: $line."
CONNECTION="yes"
;;
*"NX> 999 Bye"*)
break;
;;
esac
done < <(NODE_PUBLICKEY="$NX_HOME_DIR/.ssh/client.id_dsa.key" \
$PATH_BIN/nxnode-login test-nx nx 22 nxserver --check)
if [ -z "$CONNECTION" ]; then
echo "Fatal error: Could not connect to NX Server."
echo
echo "Please check your ssh setup:"
echo ""
echo "The following are _examples_ of what you might need to check."
echo ""
echo " - Make sure \"nx\" is one of the AllowUsers in sshd_config."
echo " (or that the line is outcommented/not there)"
echo " - Make sure \"nx\" is one of the AllowGroups in sshd_config."
echo " (or that the line is outcommented/not there)"
echo " - Make sure your sshd allows public key authentication."
echo " - Make sure your sshd is really running on port 22."
echo " - Make sure your sshd_config AuthorizedKeysFile in sshd_config is set to $SSH_AUTHORIZED_KEYS."
echo " (this should be a filename not a pathname+filename)"
echo " - Make sure you allow ssh on localhost, this could come from some"
echo " restriction of:"
echo " -the tcp wrapper. Then add in /etc/hosts.allow: ALL:localhost"
echo " -the iptables. add to it:"
echo " $ iptables -A INPUT -i lo -j ACCEPT"
echo " $ iptables -A OUTPUT -o lo -j ACCEPT"
exit_proc 1
fi
echo "<--- done"
echo ""
}
uninstall_nx() {
if [ -e "$NX_SESS_DIR" ]; then
echo -n "Removing session database ..."
rmdir -p $NX_SESS_DIR 2>/dev/null
echo "done"
fi
if [ -e "$NX_LOGFILE" ]; then
echo -n "Removing logfile ..."
rm -f "$NX_LOGFILE" 2>/dev/null
rmdir -p $(dirname "$NX_LOGFILE") 2>/dev/null
echo "done"
fi
if [ "$PURGE" = "yes" -a -e "$NX_HOME_DIR" ]; then
echo -n "Removing home directory of special user \"nx\" ..."
rm -f -r "$NX_HOME_DIR" 2>/dev/null
rmdir -p $(dirname "$NX_HOME_DIR") 2>/dev/null
echo "done"
fi
if [ "$PURGE" = "yes" -a -e "$NX_ETC_DIR" ]; then
echo -n "Removing configuration files ..."
rm -f "$NX_ETC_DIR/users.id_dsa" \
"$NX_ETC_DIR/users.id_dsa.pub" 2>/dev/null
for i in `ls $NX_ETC_DIR/*.node.conf 2>/dev/null`; do
rm -f "$i" 2>/dev/null;
done
echo "done"
fi
}
if [ "$TEST" = "yes" ]; then
test_nx
exit_proc 0
fi
if [ "$INSTALL" = "yes" ]; then
#Perform cleanup?
[ "$CLEAN" = "yes" ] && uninstall_nx
[ -f /etc/nscd.conf ] && { run_nscd --invalidate passwd; run_nscd --invalidate group; }
install_nx
[ "$AUTOMATIC" = "no" ] && test_nx
echo "Ok, nxserver is ready."
if [ "$SETUP_NOMACHINE_KEY" = "no" -a "$SETUP_NX_KEY" = "yes" ]; then
echo
echo "Warning: Clients will not be able to login to this server with the standard key."
echo " Please replace /usr/NX/share/client.id_dsa.key on all clients you want"
echo " to use with $NX_HOME_DIR/.ssh/client.id_dsa.key"
echo " and protect it accordingly."
echo ""
echo " Since 1.5.0 you need to import the correct key via the GUI."
echo
echo " If you really want to use the NoMachine key please remove"
echo " '$NX_HOME_DIR/.ssh/$SSH_AUTHORIZED_KEYS'"
echo " and then run this script with the --setup-nomachine-key parameter."
fi
echo "Have Fun!"
elif [ "$UNINSTALL" = "yes" ]; then
uninstall_nx
echo "Ok, nxserver is uninstalled"
echo
if [ "$PURGE" = "yes" ]; then
echo "To complete the uninstallation process, remove the FreeNX scripts in $PATH_BIN"
echo "and the $NX_ETC_DIR/node.conf configuration file."
else
echo "To complete the uninstallation process, remove the FreeNX scripts in $PATH_BIN"
echo
echo "Configuration files and ssh keys are saved in case you would like to reinstall"
echo "freenx at a later time. To remove them, please run 'nxsetup --uninstall --purge'"
fi
fi
exit_proc 0
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