Arthur de Jong

Open Source / Free Software developer

summaryrefslogtreecommitdiffstats
path: root/debian/libnss-ldapd.config
blob: fcbf407bc39dea4ae70c2eea32f05676a5b5b6d4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
#!/bin/sh

set -e

CONFFILE="/etc/nss-ldapd.conf"

# source debconf library.
. /usr/share/debconf/confmodule
db_version 2.0
db_capb backup

# set title
db_title "Configuring libnss-ldapd"

#
# This is the fist part of the script. In this part an attempt
# is made to get or guess the current configuration. This information
# is used later on to prompt the user and to provide a sensible
# default.
#

# check the system (non-LDAP configuration files) for some
# reasonable defaults
parsesys()
{
  # guess domain based on system information
  domain=`hostname --domain` || true
  [ -z "$domain" ] && domain=`hostname --nis | grep '\.'` || true
  [ -z "$domain" ] && domain=`hostname --fqdn | sed -n 's/^[^.]*\.//p'` || true
  [ -z "$domain" ] && domain=`sed -n 's/^ *\(domain\|search\) *\([^ ]*\) *$/\2/p' /etc/resolv.conf | head -n 1` || true
  if [ -n "$domain" ]
  then
    # set search base
    searchbase=`echo "$domain" | sed 's/^/dc=/;s/\./,dc=/'` || true
    db_set libnss-ldapd/ldap-base "$searchbase"
  fi
  # guess ldap server
  server=`getent hosts ldap` || true
  [ -z "$server" ] && server=`getent hosts dirhost` || true
  if [ -n "$domain" ] && [ -z "$server" ]
  then
    server=`getent hosts ldap."$domain"` || true
    [ -z "$server" ] && server=`getent hosts dirhost."$domain"` || true
  fi
  if [ -n "$server" ]
  then
    # extract ip address from host entry and quote ipv6 address
    ip=`echo $server | sed 's/[[:space:]].*//;s/^\(.*:.*\)$/[\1]/'`
    db_set libnss-ldapd/ldap-uris "ldap://$ip/"
  fi
}

# parse a LDAP-like configuration file
parsecfg()
{
  cfgfile="$1"
  # check existance
  [ -f "$cfgfile" ] || return 0
  # find uri/host/port combo
  uris=`sed -n 's/^uri[[:space:]]*//ip' "$cfgfile" | tr '\n' ' '`
  if [ -z "$uris" ]
  then
    hosts=`sed -n 's/^host[[:space:]]*//ip' "$cfgfile"`
    port=`sed -n 's/^port[[:space:]]*//ip' "$cfgfile"`
    for host in $hosts
    do
      if [ -z "$port" ] || (echo "$host" | grep -q ':' )
      then
        uris="$uris ldap://$host/"
      else
        uris="$uris ldap://$host:$port/"
      fi
    done
  fi
  [ -n "$uris" ] && db_set libnss-ldapd/ldap-uris "$uris"
  # find base config
  searchbase=`sed -n 's/^base[[:space:]]*\([^[:space:]]*\)[[:space:]]*$/\1/ip' "$cfgfile"`
  [ -n "$searchbase" ] && db_set libnss-ldapd/ldap-base "$searchbase"
  # find binddb
  binddn=`sed -n 's/^binddn[[:space:]]*//ip' "$cfgfile"`
  db_set libnss-ldapd/ldap-binddn "$binddn"
  # find bindpw
  bindpw=`sed -n 's/^bindpw[[:space:]]*//ip' "$cfgfile"`
  db_set libnss-ldapd/ldap-bindpw "$bindpw"
  # find rootbinddb
  rootbinddn=`sed -n 's/^rootbinddn[[:space:]]*//ip' "$cfgfile"`
  db_set libnss-ldapd/ldap-rootbinddn "$rootbinddn"
  # find rootbindpw
  rootbindpw=`sed -n 's/^rootbindpw[[:space:]]*//ip' "$cfgfile"`
  db_set libnss-ldapd/ldap-rootbindpw "$rootbindpw"
  # we're done
  return 0
}

# parse /etc/nsswitch.conf and see which services have ldap specified
parsensswitch()
{
  # find name services that currently use LDAP
  configured=`sed -n 's/^\([a-z]*\):.*[[:space:]]ldap\([[:space:]].*\)\?/\1/p' /etc/nsswitch.conf`
  # separate by commas
  configured=`echo $configured | sed 's/ /, /g'`
  # store configured services
  db_set libnss-ldapd/nsswitch "$configured"
  # we're done
  return 0
}

# clear some settings in case they are not set in the config
db_set libnss-ldapd/ldap-binddn ""
db_set libnss-ldapd/ldap-bindpw ""
db_set libnss-ldapd/ldap-rootbinddn ""
db_set libnss-ldapd/ldap-rootbindpw ""

# fill our defaults with the current configuration if available
# and fall back to guessing the config from some other system files
if [ -f "$CONFFILE" ]
then
  # parse current configuration
  parsecfg "$CONFFILE"
else
  # newer found values override older values
  parsesys
  parsecfg /etc/ldap/ldap.conf
  parsecfg /etc/pam_ldap.conf
  parsecfg /etc/libnss-ldap.conf
fi
# check /etc/nsswitch.conf
parsensswitch

#
# This is the second part of the script. In this part the configurable
# settings will be presented to the user for approval. The postinst
# will finaly perform the actual modifications.
#

state="server"
while [ "$state" != "done" ]
do
  case "$state" in
  server)
    # ask about server configuration
    db_input high libnss-ldapd/ldap-uris || true
    db_input high libnss-ldapd/ldap-base || true
    # ask the questions, go to the next question or exit
    state="binddn"
    db_go || exit 1
    # TODO: add error checking on options
    ;;
  binddn)
    # ask for login information
    db_input medium libnss-ldapd/ldap-binddn || true
    # ask the question, go to the next question or back
    state="bindpw"
    db_go || state="server"
    ;;
  bindpw)
    # only ask question if we have a binddn
    db_get libnss-ldapd/ldap-binddn
    if [ -n "$RET" ]
    then
      # ask for login information
      db_input medium libnss-ldapd/ldap-bindpw || true
    else
      # clear password
      db_set libnss-ldapd/ldap-bindpw ""
    fi
    # ask the question, go to the next question or back
#    state="rootbinddn"
    state="nsswitch"
    db_go || state="binddn"
    ;;
# DISABLE rootbinddn for now because it's not supported
#  rootbinddn)
#    # ask for login information
#    db_input medium libnss-ldapd/ldap-rootbinddn || true
#    # ask the question, go to the next question or back
#    state="rootbindpw"
#    db_go || state="bindpw"
#    ;;
#  rootbindpw)
#    # only ask question if we have a rootbinddn
#    db_get libnss-ldapd/ldap-rootbinddn
#    if [ -n "$RET" ]
#    then
#      # ask for login information
#      db_input medium libnss-ldapd/ldap-rootbindpw || true
#    else
#      # clear password
#      db_set libnss-ldapd/ldap-rootbindpw ""
#    fi
#    # ask the question, go to the next question or back
#    state="nsswitch"
#    db_go || state="rootbinddn"
#    ;;
  nsswitch)
    # ask for which nsswitch options to configure
    db_capb multiselect
    db_input high libnss-ldapd/nsswitch || true
    state="done"
    db_go || state="rootbindpw"
    ;;
  esac
done

exit 0