]>
Commit | Line | Data |
---|---|---|
1 | #!/usr/bin/env bash | |
2 | ||
3 | LDAPSEARCH=ldapsearch | |
4 | KEY="immaeSshKey" | |
5 | LDAP_BIND="cn=ssh,ou=services,dc=immae,dc=eu" | |
6 | LDAP_PASS=$(cat /etc/ssh/ldap_password) | |
7 | LDAP_HOST="ldap.immae.eu" | |
8 | LDAP_MEMBER="cn=users,cn=ssh,ou=services,dc=immae,dc=eu" | |
9 | LDAP_GITOLITE_MEMBER="cn=users,cn=gitolite,ou=services,dc=immae,dc=eu" | |
10 | LDAP_PUB_RESTRICT_MEMBER="cn=restrict,cn=pub,ou=services,dc=immae,dc=eu" | |
11 | LDAP_PUB_FORWARD_MEMBER="cn=forward,cn=pub,ou=services,dc=immae,dc=eu" | |
12 | LDAP_BASE="dc=immae,dc=eu" | |
13 | GITOLITE_SHELL=$(which gitolite-shell) | |
14 | ECHO=$(which echo) | |
15 | ||
16 | suitable_for() { | |
17 | type_for="$1" | |
18 | key="$2" | |
19 | ||
20 | if [[ $key != *$'\n'* ]] && [[ $key == ssh-* ]]; then | |
21 | echo "$key" | |
22 | else | |
23 | key_type=$(cut -d " " -f 1 <<< "$key") | |
24 | ||
25 | if grep -q "\b-$type_for\b" <<< "$key_type"; then | |
26 | echo "" | |
27 | elif grep -q "\b$type_for\b" <<< "$key_type"; then | |
28 | echo $(sed -e "s/^[^ ]* //g" <<< "$key") | |
29 | else | |
30 | echo "" | |
31 | fi | |
32 | fi | |
33 | } | |
34 | ||
35 | clean_key_line() { | |
36 | type_for="$1" | |
37 | line="$2" | |
38 | ||
39 | if [[ "$line" == $KEY::* ]]; then | |
40 | # base64 keys should't happen, unless wrong copy-pasting | |
41 | key="" | |
42 | else | |
43 | key=$(sed -e "s/^$KEY: *//" -e "s/ *$//" <<< "$line") | |
44 | fi | |
45 | ||
46 | suitable_for "$type_for" "$key" | |
47 | } | |
48 | ||
49 | ldap_search() { | |
50 | $LDAPSEARCH -h $LDAP_HOST -ZZ -b $LDAP_BASE -D $LDAP_BIND -w "$LDAP_PASS" -x -o ldif-wrap=no -LLL "$@" | |
51 | } | |
52 | ||
53 | ldap_keys() { | |
54 | user=$1; | |
55 | if [[ $user == gitolite ]]; then | |
56 | ldap_search '(&(memberOf='$LDAP_GITOLITE_MEMBER')('$KEY'=*))' $KEY | \ | |
57 | while read line ; | |
58 | do | |
59 | if [ ! -z "$line" ]; then | |
60 | if [[ $line == dn* ]]; then | |
61 | user=$(sed -n 's/.*uid=\([^,]*\).*/\1/p' <<< "$line") | |
62 | if [ -n "$user" ]; then | |
63 | if [[ $user == "immae" ]] || [[ $user == "denise" ]]; then | |
64 | # Capitalize first letter (backward compatibility) | |
65 | user=$(sed -r 's/^([a-z])/\U\1/' <<< "$user") | |
66 | fi | |
67 | else | |
68 | # Service fake user | |
69 | user=$(sed -n 's/.*cn=\([^,]*\).*/\1/p' <<< "$line") | |
70 | fi | |
71 | elif [[ $line == $KEY* ]]; then | |
72 | key=$(clean_key_line git "$line") | |
73 | if [ ! -z "$key" ]; then | |
74 | if [[ $key != *$'\n'* ]] && [[ $key == ssh-* ]]; then | |
75 | echo -n 'command="'$GITOLITE_SHELL' '$user'",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ' | |
76 | echo $key | |
77 | fi | |
78 | fi | |
79 | fi | |
80 | fi | |
81 | done | |
82 | exit 0 | |
83 | elif [[ $user == pub ]]; then | |
84 | ldap_search '(&(memberOf='$LDAP_PUB_RESTRICT_MEMBER')('$KEY'=*))' $KEY | \ | |
85 | while read line ; | |
86 | do | |
87 | if [ ! -z "$line" ]; then | |
88 | if [[ $line == dn* ]]; then | |
89 | echo "" | |
90 | user=$(sed -n 's/.*uid=\([^,]*\).*/\1/p' <<< "$line") | |
91 | echo "# $user" | |
92 | elif [[ $line == $KEY* ]]; then | |
93 | key=$(clean_key_line pub "$line") | |
94 | key_forward=$(clean_key_line forward "$line") | |
95 | if [ ! -z "$key" ]; then | |
96 | if [[ $key != *$'\n'* ]] && [[ $key == ssh-* ]]; then | |
97 | echo -n 'command="/etc/profiles/per-user/pub/bin/restrict '$user'" ' | |
98 | echo $key | |
99 | fi | |
100 | elif [ ! -z "$key_forward" ]; then | |
101 | if [[ $key_forward != *$'\n'* ]] && [[ $key_forward == ssh-* ]]; then | |
102 | echo "# forward only" | |
103 | echo -n 'no-pty,no-X11-forwarding,command="'$ECHO' forward only" ' | |
104 | echo $key_forward | |
105 | fi | |
106 | fi | |
107 | fi | |
108 | fi | |
109 | done | |
110 | ||
111 | echo "" | |
112 | ldap_search '(&(memberOf='$LDAP_PUB_FORWARD_MEMBER')('$KEY'=*))' $KEY | \ | |
113 | while read line ; | |
114 | do | |
115 | if [ ! -z "$line" ]; then | |
116 | if [[ $line == dn* ]]; then | |
117 | echo "" | |
118 | user=$(sed -n 's/.*uid=\([^,]*\).*/\1/p' <<< "$line") | |
119 | echo "# $user" | |
120 | elif [[ $line == $KEY* ]]; then | |
121 | key=$(clean_key_line forward "$line") | |
122 | if [ ! -z "$key" ]; then | |
123 | if [[ $key != *$'\n'* ]] && [[ $key == ssh-* ]]; then | |
124 | echo -n 'no-pty,no-X11-forwarding,command="'$ECHO' forward only" ' | |
125 | echo $key | |
126 | fi | |
127 | fi | |
128 | fi | |
129 | fi | |
130 | done | |
131 | exit 0 | |
132 | else | |
133 | ldap_search '(&(memberOf='$LDAP_MEMBER')('$KEY'=*)(uid='$user'))' $KEY | \ | |
134 | while read line ; | |
135 | do | |
136 | if [ ! -z "$line" ]; then | |
137 | if [[ $line == dn* ]]; then | |
138 | user=$(sed -n 's/.*uid=\([^,]*\).*/\1/p' <<< "$line") | |
139 | elif [[ $line == $KEY* ]]; then | |
140 | key=$(clean_key_line ssh "$line") | |
141 | if [ ! -z "$key" ]; then | |
142 | if [[ $key != *$'\n'* ]] && [[ $key == ssh-* ]]; then | |
143 | echo $key | |
144 | fi | |
145 | fi | |
146 | fi | |
147 | fi | |
148 | done | |
149 | fi | |
150 | } | |
151 | ||
152 | ldap_keys $@ |