flakes/private/ssh/ldap_authorized_keys.sh

   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=$(cat /etc/ssh/ldap_password)
   7 LDAP_HOST="ldap://ldap.immae.eu"
   8 LDAP_BASE="dc=immae,dc=eu"
   9 USER_LDAP_BASE="ou=users,dc=immae,dc=eu"
  10
  11 PSQL_BASE="immae"
  12 PSQL_HOST="localhost"
  13 PSQL_USER="immae_auth_read"
  14 PSQL_PASS=$(cat /etc/ssh/psql_password)
  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 "$@"
  51 }
  52
  53 psql_search() {
  54   PGPASSWORD="$PSQL_PASS" psql -U "$PSQL_USER" -h "$PSQL_HOST" -X -A -t -d "$PSQL_BASE" -c "$@"
  55 }
  56
  57 ldap_keys() {
  58   user=$1;
  59   @snippets@
  60 }
  61
  62 ldap_keys $@