From 3ddd30bea0bf9f7f966b3fed8d2cb455a148092f Mon Sep 17 00:00:00 2001
From: Christian Heller <c.heller@plomlompom.de>
Date: Mon, 18 May 2020 22:59:20 +0200
Subject: [PATCH] Add mail data migration to mail setup script.

---
 buster/setup_scripts/setup_mail.sh | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/buster/setup_scripts/setup_mail.sh b/buster/setup_scripts/setup_mail.sh
index 925d433..a72dc2a 100755
--- a/buster/setup_scripts/setup_mail.sh
+++ b/buster/setup_scripts/setup_mail.sh
@@ -1,11 +1,12 @@
 #!/bin/sh
 set -e
 
-if [ "$#" -ne 1 ]; then
-    echo 'Need mail for letsencrypt.'
+if [ "$#" -lt 1 ]; then
+    echo 'Need mail for letsencrypt (and optionally old server IP).'
     false
 fi
 mail="$1"
+old_server="$2"
 
 config_tree_prefix="${HOME}/config/buster"
 echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections
@@ -13,9 +14,10 @@ echo "postfix postfix/mailname string $(hostname -f)" | debconf-set-selections
 ./install_for_target.sh mail
 ./copy_dirtree.sh "${config_tree_prefix}/etc_files" "" mail
 nft -f /etc/nftables.conf
+newaliases
 
 cat "${config_tree_prefix}/other_files/append_postfix_main.cf" >> /etc/postfix/main.cf
-cat "${config_tree_prefix}/other_files/append_postfix_master.cf" >> /etc/postfix/main.cf
+cat "${config_tree_prefix}/other_files/append_postfix_master.cf" >> /etc/postfix/master.cf
 cat "${config_tree_prefix}/other_files/append_opendkim.conf" >> /etc/opendkim.conf
 
 # Set up letsencrypt certificate.  We need this for STARTTLS on port
@@ -44,6 +46,21 @@ password=$(pwgen -s 100 1)
 #echo 'mail_privileged_group = mail' >> /etc/dovecot/conf.d/99-mail.conf
 echo "plom:${password}" | chpasswd
 
+# Get old mail data.
+if [ "${old_server}" != "" ]; then
+  cp "${config_tree_prefix}/setup_scripts/prepare_to_meet_server.sh" /home/plom/
+  chown plom:plom /home/plom/prepare_to_meet_server.sh
+  su -lc "./prepare_to_meet_server.sh ${old_server}" plom
+  read -p'Hit Enter when you are done.' ignore
+  rm /home/plom/prepare_to_meet_server.sh
+  cp "${config_tree_prefix}/setup_scripts/mirror_dir.sh" /home/plom/
+  su -lc "./mirror_dir.sh ${old_server} /home/plom/mail" plom
+  rm /home/plom/mirror_dir.sh
+  su -lc "scp plom@${old_server}:.dovecot.sieve ~" plom
+  su -lc "scp plom@${old_server}:/var/mail/plom /var/mail/plom" plom
+  su -lc "ssh plom@${old_server} \"su -lc 'service postfix stop'\"" plom
+fi
+
 service opendkim restart
 service postfix restart
 service dovecot restart
@@ -52,7 +69,7 @@ echo "To put into DNS:"
 cat "/etc/dkimkeys/${selector}.txt"
 echo "If subdomain, append .subdomain to _domainkeys!"
 echo "Also ensure DMARC record of 'v=DMARC1; p=none; rua=mailto:plom+dmarc@plomlompom.com;' as TXT entry at _dmarc or, if subdomain, _dmarc.subdomain"
-echo "Also ensure SPF record of 'v=spf1 mx -all' at @ or subdomain"
+echo "Also ensure SPF record of 'v=spf1 mx -all' as TXT entry at @ or subdomain"
 echo "Also ensure reverse DNS lookup for our IP points to $(hostname -f)"
 echo "Also ensure MX record of priority 10 for @ or subdomain pointing to $(hostname -f)"
 echo "IMAPS password for user plom is: ${password}"
-- 
2.30.2