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move the SSL setup into its own bash script since it is used for much more than email now

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This commit is contained in:
Joshua Tauberer 2014-06-21 22:15:53 +00:00
parent 0ab43ef4fd
commit 67d31ed998
4 changed files with 48 additions and 29 deletions
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7
management/dns_update.py
View File

@ -132,7 +132,7 @@ def build_zone(domain, zonefile, env, with_ns=True):
records.append(("ns1", "A", env["PUBLIC_IP"]))
records.append(("ns2", "A", env["PUBLIC_IP"]))
# Add a TLSA record for SMTP.
# Add a DANE TLSA record for SMTP.
records.append(("_25._tcp", "TLSA", build_tlsa_record(env)))
def has_rec(qname, rtype):
@ -179,9 +179,8 @@ def build_zone(domain, zonefile, env, with_ns=True):
########################################################################
def build_tlsa_record(env):
# A TLSA record in DNS specifies that connections on a port, e.g.
# the SMTP port, must use TLS and the certificate must match a
# particular certificate.
# A DANE TLSA record in DNS specifies that connections on a port
# must use TLS and the certificate must match a particular certificate.
#
# Thanks to http://blog.huque.com/2012/10/dnssec-and-certificates.html
# for explaining all of this!

26
setup/mail.sh
View File

@ -18,8 +18,7 @@ source /etc/mailinabox.conf # load global vars
apt_install \
postfix postgrey postfix-pcre \
dovecot-core dovecot-imapd dovecot-lmtpd dovecot-sqlite sqlite3 \
openssl
dovecot-core dovecot-imapd dovecot-lmtpd dovecot-sqlite sqlite3
mkdir -p $STORAGE_ROOT/mail
@ -244,29 +243,6 @@ tools/editconf.py /etc/dovecot/conf.d/10-ssl.conf \
"ssl_cert=<$STORAGE_ROOT/ssl/ssl_certificate.pem" \
"ssl_key=<$STORAGE_ROOT/ssl/ssl_private_key.pem" \
# SSL CERTIFICATE
mkdir -p $STORAGE_ROOT/ssl
if [ ! -f $STORAGE_ROOT/ssl/ssl_certificate.pem ]; then
# Generate a new private key if one doesn't already exist.
# Set the umask so the key file is not world-readable.
(umask 077; openssl genrsa -out $STORAGE_ROOT/ssl/ssl_private_key.pem 2048)
fi
if [ ! -f $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr ]; then
# Generate a certificate signing request if one doesn't already exist.
openssl req -new -key $STORAGE_ROOT/ssl/ssl_private_key.pem -out $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr \
-subj "/C=$CSR_COUNTRY/ST=/L=/O=/CN=$PUBLIC_HOSTNAME"
fi
if [ ! -f $STORAGE_ROOT/ssl/ssl_certificate.pem ]; then
# Generate a SSL certificate by self-signing if a SSL certificate doesn't yet exist.
openssl x509 -req -days 365 \
-in $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr -signkey $STORAGE_ROOT/ssl/ssl_private_key.pem -out $STORAGE_ROOT/ssl/ssl_certificate.pem
fi
echo
echo "Your SSL certificate's fingerpint is:"
openssl x509 -in /home/user-data/ssl/ssl_certificate.pem -noout -fingerprint
echo
# PERMISSIONS / RESTART SERVICES
# Ensure configuration files are owned by dovecot and not world readable.

43
setup/ssl.sh Executable file
View File

@ -0,0 +1,43 @@
#!/bin/bash
#
# SSL Certificate
#
# Create a self-signed SSL certificate if one has not yet been created.
#
# The certificate is for PUBLIC_HOSTNAME specifically and is used for:
#
# * IMAP
# * SMTP submission (port 587) and opportunistic TLS (when on the receiving end)
# * the DNSSEC DANE TLSA record for SMTP
# * HTTPS (for PUBLIC_HOSTNAME only)
#
# When other domains besides PUBLIC_HOSTNAME are served over HTTPS,
# we generate a domain-specific self-signed certificate in the management
# daemon (web_update.py) as needed.
source setup/functions.sh # load our functions
source /etc/mailinabox.conf # load global vars
apt_install openssl
mkdir -p $STORAGE_ROOT/ssl
if [ ! -f $STORAGE_ROOT/ssl/ssl_certificate.pem ]; then
# Generate a new private key if one doesn't already exist.
# Set the umask so the key file is not world-readable.
(umask 077; openssl genrsa -out $STORAGE_ROOT/ssl/ssl_private_key.pem 2048)
fi
if [ ! -f $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr ]; then
# Generate a certificate signing request if one doesn't already exist.
openssl req -new -key $STORAGE_ROOT/ssl/ssl_private_key.pem -out $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr \
-subj "/C=$CSR_COUNTRY/ST=/L=/O=/CN=$PUBLIC_HOSTNAME"
fi
if [ ! -f $STORAGE_ROOT/ssl/ssl_certificate.pem ]; then
# Generate a SSL certificate by self-signing if a SSL certificate doesn't yet exist.
openssl x509 -req -days 365 \
-in $STORAGE_ROOT/ssl/ssl_cert_sign_req.csr -signkey $STORAGE_ROOT/ssl/ssl_private_key.pem -out $STORAGE_ROOT/ssl/ssl_certificate.pem
fi
echo
echo "Your SSL certificate's fingerpint is:"
openssl x509 -in /home/user-data/ssl/ssl_certificate.pem -noout -fingerprint
echo

1
setup/start.sh
View File

@ -122,6 +122,7 @@ EOF
# Start service configuration.
. setup/system.sh
. setup/ssl.sh
. setup/dns.sh
. setup/mail.sh
. setup/dkim.sh