#!/bin/sh

# Author: Christoph Galuschka <christoph.galuschka@chello.at>

t_Log "Running $0 - Postfix plain SASL test."

t_Log "Installing prerequisits"

t_InstallPackage openssl

#creating backups of changed files

cp -a /etc/postfix/main.cf /etc/postfix/main.cf_testing

if [ $centos_ver = 5 ]

  then

  cp -a /etc/dovecot.conf /etc/dovecot.conf_testing

else

  cp -a /etc/dovecot/dovecot.conf /etc/dovecot/dovecot.conf_testing

fi

#creating certificates

TESTDIR='/var/tmp/openssl-test'

mkdir $TESTDIR

t_Log "creating private key"

if [ $centos_ver = 6 ] 

  then

  openssl genpkey -algorithm rsa -out $TESTDIR/server.key.secure -pkeyopt rsa_keygen_bits:2048 > /dev/null 2>&1

else

  openssl genrsa -passout pass:centos -des3 -rand file1:file2:file3:file4:file5 -out $TESTDIR/server.key.secure 2048 > /dev/null 2>&1

fi

if [ $? == 1 ]

  then t_Log "Creation of private key failed."

  ret_val=1

  exit

fi

#create default answer file

cat > $TESTDIR/openssl_answers<

[ req ]

default_bits       = 2048

distinguished_name = req_distinguished_name

string_mask        = nombstr

[ req_distinguished_name ]

countryName                     = Country Name (2 letter code)

countryName_default             = UK

stateOrProvinceName             = State or Province Name (full name)

stateOrProvinceName_default     = somestate

localityName                    = Locality Name (eg, city)

localityName_default            = somecity

0.organizationName              = Organization Name (eg, company)

0.organizationName_default      = CentOS-Project

organizationalUnitName          = Organizational Unit Name (eg, section)

organizationalUnitName_default  = CentOS

EOF

t_Log "creating server key"

if [ $centos_ver = 6 ]

  then

  openssl rsa -in $TESTDIR/server.key.secure -out $TESTDIR/server.key > /dev/null 2>&1

else

  openssl rsa -passin pass:centos -in $TESTDIR/server.key.secure -out $TESTDIR/server.key > /dev/null 2>&1

fi

if [ $? == 1 ]

  then t_Log "Creation of server key failed."

  ret_val=1

  exit

fi

openssl req -batch -config $TESTDIR/openssl_answers -new -key $TESTDIR/server.key -out $TESTDIR/server.csr > /dev/null 2>&1

if [ $? == 1 ]

  then t_Log "Creation of CSR failed."

  ret_val=1

  exit

fi

t_Log "creating server certificate"

openssl x509 -req -days 3600 -in $TESTDIR/server.csr -signkey $TESTDIR/server.key -out $TESTDIR/server.crt > /dev/null 2>&1

if [ $? == 1 ]

  then t_Log "Creation of CRT failed."

  ret_val=1

  exit

fi

#copy files to destinations

cp -a $TESTDIR/server.crt /etc/pki/tls/certs/

cp -a $TESTDIR/server.key /etc/pki/tls/private/

#adding parameters to postfix

cat >> /etc/postfix/main.cf <

smtpd_sasl_auth_enable = yes

broken_sasl_auth_clients = yes

smtpd_sasl_type = dovecot

smtpd_sasl_path = private/auth

smtpd_sasl_security_options = noanonymous

smtpd_tls_security_level = may

smtpd_tls_key_file = /etc/pki/tls/private/mail.example.com.key

smtpd_tls_cert_file = /etc/pki/tls/certs/mail.example.com.cert

# smtpd_tls_CAfile = /etc/pki/tls/root.crt

smtpd_tls_loglevel = 1

smtpd_tls_session_cache_timeout = 3600s

smtpd_tls_session_cache_database = btree:/var/spool/postfix/smtpd_tls_cache

tls_random_source = dev:/dev/urandom

smtpd_tls_auth_only = yes

smtpd_recipient_restrictions =

      permit_mynetworks,

      permit_sasl_authenticated,

      reject_unauth_destination

EOF

#adding parameters to dovecot

if [ $centos_ver = 5 ]

  then

  cat > /etc/dovecot.conf <

protocol imap {

}

protocol pop3 {

}

protocol lda {

  postmaster_address = postmaster@example.com

}

auth default {

  mechanisms = plain

  passdb pam {

  }

  userdb passwd {

  }

  user = root

  socket listen {

    client {

      path = /var/spool/postfix/private/auth

      mode = 0660

      user = postfix

      group = postfix

    }

  }

}

dict {

}

plugin {

}

EOF

else

  cat >> /etc/dovecot/dovecot.conf <

service auth {

  unix_listener /var/spool/postfix/private/auth {

    mode = 0660

    user = postfix

    group = postfix

  }

}

EOF

fi

#restarting services

t_ServiceControl postfix restart

t_ServiceControl dovecot restart

#Running test

t_Log "Testing if postfix accepts connections and offers STARTTLS"

echo "ehlo test" | nc -w 3 localhost 25 | grep -q 'STARTTLS'

ret_val=$?

# restoring changed files

mv -f /etc/postfix/main.cf_testing /etc/postfix/main.cf

if [ $centos_ver = 5 ]

  then

  mv -f /etc/dovecot.conf_testing /etc/dovecot.conf

else

  mv -f /etc/dovecot/dovecot.conf_testing /etc/dovecot/dovecot.conf

fi

rm -rf $TESTDIR/server.*

rm -rf /etc/pki/tls/certs/server.crt         

rm -rf /etc/pki/tls/private/server.key

t_CheckExitStatus $ret_val