107 lines
3.6 KiB
Bash
Executable File
107 lines
3.6 KiB
Bash
Executable File
#!/bin/bash
|
|
#
|
|
# User Authentication and Destination Validation
|
|
#
|
|
# This script configures user authentication for Dovecot
|
|
# and Postfix (which relies on Dovecot) and destination
|
|
# validation by quering an Sqlite3 database of mail users.
|
|
|
|
source setup/functions.sh # load our functions
|
|
source /etc/mailinabox.conf # load global vars
|
|
|
|
# The database of mail users (i.e. authenticated users, who have mailboxes)
|
|
# and aliases (forwarders).
|
|
|
|
db_path=$STORAGE_ROOT/mail/users.sqlite
|
|
|
|
# Create an empty database if it doesn't yet exist.
|
|
if [ ! -f $db_path ]; then
|
|
echo Creating new user database: $db_path;
|
|
echo "CREATE TABLE users (id INTEGER PRIMARY KEY AUTOINCREMENT, email TEXT NOT NULL UNIQUE, password TEXT NOT NULL, extra, privileges TEXT NOT NULL DEFAULT '');" | sqlite3 $db_path;
|
|
echo "CREATE TABLE aliases (id INTEGER PRIMARY KEY AUTOINCREMENT, source TEXT NOT NULL UNIQUE, destination TEXT NOT NULL);" | sqlite3 $db_path;
|
|
fi
|
|
|
|
# User Authentication
|
|
#####################
|
|
|
|
# Have Dovecot query our database, and not system users, for authentication.
|
|
sed -i "s/#*\(\!include auth-system.conf.ext\)/#\1/" /etc/dovecot/conf.d/10-auth.conf
|
|
sed -i "s/#\(\!include auth-sql.conf.ext\)/\1/" /etc/dovecot/conf.d/10-auth.conf
|
|
|
|
# Specify how the database is to be queried for user authentication (passdb)
|
|
# and where user mailboxes are stored (userdb).
|
|
cat > /etc/dovecot/conf.d/auth-sql.conf.ext << EOF;
|
|
passdb {
|
|
driver = sql
|
|
args = /etc/dovecot/dovecot-sql.conf.ext
|
|
}
|
|
userdb {
|
|
driver = static
|
|
args = uid=mail gid=mail home=$STORAGE_ROOT/mail/mailboxes/%d/%n
|
|
}
|
|
EOF
|
|
|
|
# Configure the SQL to query for a user's password.
|
|
cat > /etc/dovecot/dovecot-sql.conf.ext << EOF;
|
|
driver = sqlite
|
|
connect = $db_path
|
|
default_pass_scheme = SHA512-CRYPT
|
|
password_query = SELECT email as user, password FROM users WHERE email='%u';
|
|
EOF
|
|
chmod 0600 /etc/dovecot/dovecot-sql.conf.ext # per Dovecot instructions
|
|
|
|
# Have Dovecot provide an authorization service that Postfix can access & use.
|
|
# Drew Crawford sets the auth-worker process to run as the mail user, but we don't care if it runs as root.
|
|
cat > /etc/dovecot/conf.d/99-local-auth.conf << EOF;
|
|
service auth {
|
|
unix_listener /var/spool/postfix/private/auth {
|
|
mode = 0666
|
|
user = postfix
|
|
group = postfix
|
|
}
|
|
}
|
|
EOF
|
|
|
|
# And have Postfix use that service.
|
|
tools/editconf.py /etc/postfix/main.cf \
|
|
smtpd_sasl_type=dovecot \
|
|
smtpd_sasl_path=private/auth \
|
|
smtpd_sasl_auth_enable=yes
|
|
|
|
# Destination Validation
|
|
########################
|
|
|
|
# Use a Sqlite3 database to check whether a destination email address exists,
|
|
# and to perform any email alias rewrites in Postfix.
|
|
tools/editconf.py /etc/postfix/main.cf \
|
|
virtual_mailbox_domains=sqlite:/etc/postfix/virtual-mailbox-domains.cf \
|
|
virtual_mailbox_maps=sqlite:/etc/postfix/virtual-mailbox-maps.cf \
|
|
virtual_alias_maps=sqlite:/etc/postfix/virtual-alias-maps.cf \
|
|
local_recipient_maps=\$virtual_mailbox_maps
|
|
|
|
# SQL statement to check if we handle mail for a domain, either for users or aliases.
|
|
cat > /etc/postfix/virtual-mailbox-domains.cf << EOF;
|
|
dbpath=$db_path
|
|
query = SELECT 1 FROM users WHERE email LIKE '%%@%s' UNION SELECT 1 FROM aliases WHERE source LIKE '%%@%s'
|
|
EOF
|
|
|
|
# SQL statement to check if we handle mail for a user.
|
|
cat > /etc/postfix/virtual-mailbox-maps.cf << EOF;
|
|
dbpath=$db_path
|
|
query = SELECT 1 FROM users WHERE email='%s'
|
|
EOF
|
|
|
|
# SQL statement to rewrite an email address if an alias is present.
|
|
cat > /etc/postfix/virtual-alias-maps.cf << EOF;
|
|
dbpath=$db_path
|
|
query = SELECT destination FROM aliases WHERE source='%s'
|
|
EOF
|
|
|
|
# Restart Services
|
|
##################
|
|
|
|
restart_service postfix
|
|
restart_service dovecot
|
|
|
|
|