debian/postinst

   1 #!/bin/sh
   2
   3 set -e
   4
   5 [ "$1" = "configure" ] || exit 0
   6 [ "$DEBIAN_SCRIPT_DEBUG" ] && set -vx
   7
   8 # Load CARNet Tools
   9 . /usr/share/carnet-tools/functions.sh
  10
  11
  12 move_certs() {
  13         if [ -f /etc/dovecot/private/dovecot.pem -a ! -f /etc/dovecot/private/dovecot.key ]; then
  14                 mv -f /etc/dovecot/private/dovecot.pem /etc/dovecot/private/dovecot.key || true
  15         fi
  16
  17         if [ -f /etc/dovecot/dovecot.pem ]; then
  18                 mv -f /etc/dovecot/dovecot.pem /etc/dovecot/private/dovecot.pem || true
  19         fi
  20 }
  21
  22 put_new_certs() {
  23 # postavlja cert i key na nove putanje iz bustera
  24   cp_check_and_sed '#ssl_key = </etc/dovecot/private/dovecot.pem' \
  25                    's|#ssl_key = </etc/dovecot/private/dovecot.pem|ssl_key = </etc/dovecot/private/dovecot.key|g' \
  26                    /etc/dovecot/conf.d/10-ssl.conf || true
  27   cp_check_and_sed '#ssl_cert = </etc/dovecot/dovecot.pem' \
  28                    's|#ssl_cert = </etc/dovecot/dovecot.pem|ssl_cert = </etc/dovecot/private/dovecot.pem|g' \
  29                    /etc/dovecot/conf.d/10-ssl.conf || true
  30   cp_check_and_sed 'ssl_cert = </etc/dovecot/dovecot.pem' \
  31                    's|ssl_cert = </etc/dovecot/dovecot.pem|ssl_cert = </etc/dovecot/private/dovecot.pem|g' \
  32                    /etc/dovecot/conf.d/10-ssl.conf || true
  33   cp_check_and_sed 'ssl_key = </etc/dovecot/private/dovecot.pem' \
  34                    's|ssl_key = </etc/dovecot/private/dovecot.pem|ssl_key = </etc/dovecot/private/dovecot.key|g' \
  35                    /etc/dovecot/conf.d/10-ssl.conf || true
  36   cp_check_and_sed '#ssl_cert = </etc/dovecot/private/dovecot.pem' \
  37                    's|#ssl_cert = </etc/dovecot/private/dovecot.pem|ssl_cert = </etc/dovecot/private/dovecot.pem|g' \
  38                    /etc/dovecot/conf.d/10-ssl.conf || true
  39   cp_check_and_sed '#ssl_key = </etc/dovecot/private/dovecot.key' \
  40                    's|#ssl_key = </etc/dovecot/private/dovecot.key|ssl_key = </etc/dovecot/private/dovecot.key|g' \
  41                    /etc/dovecot/conf.d/10-ssl.conf || true
  42 }
  43
  44
  45 cp_check_and_sed '#disable_plaintext_auth' \
  46                  's/#disable_plaintext_auth/disable_plaintext_auth/g' \
  47                  /etc/dovecot/conf.d/10-auth.conf || true
  48
  49 cp_check_and_sed 'disable_plaintext_auth.*yes' \
  50                  's/disable_plaintext_auth.*$/disable_plaintext_auth = no/g' \
  51                  /etc/dovecot/conf.d/10-auth.conf || true
  52
  53 if ! grep -q "mail_privileged_group.*mail$" /etc/dovecot/conf.d/10-mail.conf; then
  54         cp_check_and_sed 'mail_privileged_group' \
  55                          's/mail_privileged_group.*$/mail_privileged_group = mail/g' \
  56                          /etc/dovecot/conf.d/10-mail.conf || true
  57 fi
  58
  59 cp_check_and_sed '#imap_client_workarounds' \
  60                  's/#imap_client_workarounds/imap_client_workarounds/g' \
  61                  /etc/dovecot/conf.d/20-imap.conf || true
  62
  63 cp_check_and_sed '#pop3_client_workarounds' \
  64                  's/#pop3_client_workarounds/pop3_client_workarounds/g' \
  65                  /etc/dovecot/conf.d/20-pop3.conf || true
  66
  67 cp_check_and_sed 'imap_client_workarounds' \
  68                  's/imap_client_workarounds.*$/imap_client_workarounds = delay-newmail tb-extra-mailbox-sep tb-lsub-flags/g' \
  69                  /etc/dovecot/conf.d/20-imap.conf || true
  70
  71 cp_check_and_sed 'pop3_client_workarounds' \
  72                  's/pop3_client_workarounds.*$/pop3_client_workarounds = outlook-no-nuls oe-ns-eoh/g' \
  73                  /etc/dovecot/conf.d/20-pop3.conf || true
  74
  75 cp_check_and_sed '#ssl_cipher_list' \
  76                  's/#ssl_cipher_list.*/ssl_cipher_list = ALL:!aNULL:!eNULL:!ADH!LOW:!MEDIUM:!EXP:HIGH/g' \
  77                  /etc/dovecot/conf.d/10-ssl.conf || true
  78
  79 # izbacujemo SSLv2
  80 cp_check_and_sed 'ssl_cipher_list' \
  81                  's/:\!SSLv2//g' \
  82                  /etc/dovecot/conf.d/10-ssl.conf || true
  83
  84 # trazio zelja
  85 cp_check_and_sed '#ssl =' \
  86                  's/^#ssl =/ssl =/g' \
  87                  /etc/dovecot/conf.d/10-ssl.conf || true
  88
  89 # trazio zelja
  90 cp_check_and_sed 'ssl = no' \
  91                  's/^ssl = no/ssl = yes/g' \
  92                  /etc/dovecot/conf.d/10-ssl.conf || true
  93
  94
  95 dovecert="$(doveconf ssl_cert)"
  96 dovekey="$(doveconf ssl_key)"
  97
  98 if [ -n "$dovecert" -a -n "$dovekey" ]; then
  99         echo -n "CN: Opcije ssl_cert i ssl_key su pronađene"
 100
 101         cfile=$(grep -l ^ssl_cert /etc/dovecot/conf.d/*.conf | tail -1)
 102         kfile=$(grep -l ^ssl_key /etc/dovecot/conf.d/*.conf | tail -1)
 103
 104         if grep -q ^ssl_cert $cfile && grep -q ^ssl_key $kfile; then
 105                 if [ "$cfile" != "/etc/dovecot/conf.d/10-ssl.conf" -o "$kfile" != "/etc/dovecot/conf.d/10-ssl.conf" ]; then
 106                         echo " izvan 10-ssl.conf (u $cfile), preskačem rekonfiguraciju..."
 107                 else
 108                         echo " u /etc/dovecot/conf.d/10-ssl.conf. Postavljam default vrijednosti iz Debiana 10..."
 109                         put_new_certs
 110                         move_certs
 111                 fi
 112         fi
 113 else
 114         echo "CN: ssl_cert i ssl_key nisu definirani, postavljam default vrijednosti iz Debiana 10!"
 115         # ako postoji,  pomaknut ćemo stari certifikat na novo mjesto i preimenovati kljuc
 116         # ako ne postoje certifikati generiraj ih i postavi na prava mjesta
 117
 118         move_certs
 119
 120         if [ ! -f /etc/dovecot/private/dovecot.pem -a ! -f /etc/dovecot/private/dovecot.key ]; then
 121             echo "CN: Pravim certifikat i kljuc i postavljam ih u /etc/dovecot/private..."
 122             /usr/share/dovecot-cn/mkcert.sh || true
 123         fi
 124         put_new_certs
 125 fi
 126
 127
 128
 129 ### buster ima ssl_min_protocol umjesto ssl_protocols
 130 # ne radimo ništa ako već postoji ^ssl_min_protocol = TLS*, možda je sistemac smanjivao level TLS-a
 131
 132 if ! grep -q "^ssl_min_protocol = TLS" /etc/dovecot/conf.d/10-ssl.conf; then
 133         # postavlja minimalni TLS protokol i mijenja ime varijable
 134         cp_check_and_sed '#ssl_protocols =' \
 135                          's/^#ssl_protocols.*/ssl_min_protocol = TLSv1.2/g' \
 136                          /etc/dovecot/conf.d/10-ssl.conf || true
 137
 138         # postavlja minimalni TLS protokol ako je varijabla već uključena
 139         cp_check_and_sed 'ssl_protocols =' \
 140                          's/^ssl_protocols.*/ssl_min_protocol = TLSv1.2/g' \
 141                          /etc/dovecot/conf.d/10-ssl.conf || true
 142
 143         # samo popravlja inačicu protokola i uključuje varijablu
 144         cp_check_and_sed '#ssl_min_protocol =' \
 145                          's/^#ssl_min_protocol.*/ssl_min_protocol = TLSv1.2/g' \
 146                          /etc/dovecot/conf.d/10-ssl.conf || true
 147
 148         # popravlja inačicu protokola ako je varijabla već uključena (ako je zaostao SSLv2 i SSLv3)
 149         cp_check_and_sed 'ssl_min_protocol =' \
 150                          's/^ssl_min_protocol.*/ssl_min_protocol = TLSv1.2/g' \
 151                          /etc/dovecot/conf.d/10-ssl.conf || true
 152 fi
 153
 154 ### buster ima DH ključ koji se nalazi u paketu dovecot-core
 155 # ne radimo ništa ako već postoji ^ssl_dh koji nije prazan
 156
 157 if ! grep -q "^ssl_dh = /" /etc/dovecot/conf.d/10-ssl.conf; then
 158         # postavlja DH i uključuje varijablu
 159         cp_check_and_sed '#ssl_dh =' \
 160                          's,^#ssl_dh.*,ssl_dh = </usr/share/dovecot/dh.pem,g' \
 161                          /etc/dovecot/conf.d/10-ssl.conf || true
 162 fi
 163
 164 # maknuti kludge kreiran u carnet-upgrade
 165 test -f /etc/dovecot/conf.d/95-cn6-upgrade.conf && mv /etc/dovecot/conf.d/95-cn6-upgrade.conf /var/backups || true
 166 test -f /etc/dovecot/conf.d/95-cn7-upgrade.conf && mv /etc/dovecot/conf.d/95-cn7-upgrade.conf /var/backups || true
 167 test -f /etc/dovecot/conf.d/95-cn8-upgrade.conf && mv /etc/dovecot/conf.d/95-cn8-upgrade.conf /var/backups || true
 168 test -f /etc/dovecot/conf.d/95-cn9-upgrade.conf && mv /etc/dovecot/conf.d/95-cn9-upgrade.conf /var/backups || true
 169 # nije više potrebno editirati dovecot.conf koji je samo hrpa includea
 170 test -f /etc/dovecot/dovecot.conf.cn6-upgrade && mv /etc/dovecot/dovecot.conf.cn6-upgrade /var/backups || true
 171 test -f /etc/dovecot/dovecot.conf.cn7-upgrade && mv /etc/dovecot/dovecot.conf.cn7-upgrade /var/backups || true
 172 test -f /etc/dovecot/dovecot.conf.cn8-upgrade && mv /etc/dovecot/dovecot.conf.cn8-upgrade /var/backups || true
 173 test -f /etc/dovecot/dovecot.conf.cn9-upgrade && mv /etc/dovecot/dovecot.conf.cn9-upgrade /var/backups || true
 174
 175 # staro, može se brisati
 176 # dodao ico, gasi SSLv3 protokol
 177 #cp_check_and_sed '#ssl_protocols =' \
 178 #                's/^#ssl_protocols.*/ssl_protocols = !SSLv3/g' \
 179 #                /etc/dovecot/conf.d/10-ssl.conf || true
 180
 181 # dodao zelja, gasi stare SSL protokole
 182 #cp_check_and_sed 'ssl_protocols =' \
 183 #                's/\!SSLv2 //g' \
 184 #                /etc/dovecot/conf.d/10-ssl.conf || true
 185
 186 # dodao zelja, gasi stare SSL protokole/ciphere u 95-cn9-upgrade.conf ako postoje
 187 #if [ -f /etc/dovecot/conf.d/95-cn9-upgrade.conf ]; then
 188 #       cp_check_and_sed 'ssl_protocols =' \
 189 #                        's/\!SSLv2 //g' \
 190 #                        /etc/dovecot/conf.d/95-cn9-upgrade.conf || true
 191 #       cp_check_and_sed 'ssl_cipher_list' \
 192 #                        's/:\!SSLv2//g' \
 193 #                        /etc/dovecot/conf.d/95-cn9-upgrade.conf || true
 194 #fi
 195
 196 # restart
 197 service dovecot restart || true
 198
 199 #DEBHELPER#
 200
 201 exit 0