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#!/bin/bash
#
# .---. . .
# | | |
# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
#
# Freedom in the Cloud
#
# Email functions
#
# License
# =======
#
# Copyright (C) 2014-2016 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# the default email address
MY_EMAIL_ADDRESS=$MY_USERNAME@$DEFAULT_DOMAIN_NAME
# If you want to run a public mailing list specify its name here.
# There should be no spaces in the name
PUBLIC_MAILING_LIST=
# Optional different domain name for the public mailing list
PUBLIC_MAILING_LIST_DOMAIN_NAME=
# Directory where the public mailing list data is stored
PUBLIC_MAILING_LIST_DIRECTORY="/var/spool/mlmmj"
# If you want to run an encrypted mailing list specify its name here.
# There should be no spaces in the name
PRIVATE_MAILING_LIST=
GPG_KEYSERVER="hkp://keys.gnupg.net"
# whether to encrypt all incoming email with your public key
GPG_ENCRYPT_STORED_EMAIL="yes"
# gets set to yes if gpg keys are imported from usb
GPG_KEYS_IMPORTED="no"
# optionally you can provide your exported GPG key pair here
# Note that the private key file will be deleted after use
# If these are unspecified then a new GPG key will be created
MY_GPG_PUBLIC_KEY=
MY_GPG_PRIVATE_KEY=
# optionally specify your public key ID
MY_GPG_PUBLIC_KEY_ID=
EXIM_ONION_REPO="https://github.com/petterreinholdtsen/exim4-smtorp"
# automatic archiving of email
CLEANUP_MAILDIR_REPO="https://github.com/bashrc/cleanup-maildir"
CLEANUP_MAILDIR_COMMIT='33241d2e3861f901ba17f5c77ada007e1ec06a86'
# email encryption at rest
GPGIT_REPO="https://github.com/mikecardwell/gpgit"
GPGIT_COMMIT='583dc76119f19420f8a33f606744faa7c8922738'
# refresh gpg keys every few hours
REFRESH_GPG_KEYS_HOURS=2
function backup_email {
echo ''
}
function configure_firewall_for_email {
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [[ $INSTALLED_WITHIN_DOCKER == "yes" ]]; then
# docker does its own firewalling
return
fi
if [[ $ONION_ONLY != "no" ]]; then
return
fi
firewall_add Email 25 tcp
firewall_add Email 587 tcp
firewall_add Email 465 tcp
firewall_add Imap 993 tcp
mark_completed $FUNCNAME
}
function encrypt_incoming_email {
# encrypts incoming mail using your GPG public key
# so even if an attacker gains access to the data at rest they still need
# to know your GPG key password to be able to read anything
if [ ! -d /etc/exim4 ]; then
return
fi
# update to the next commit
function_check set_repo_commit
set_repo_commit $INSTALL_DIR/gpgit "gpgit commit" "$GPGIT_COMMIT" $GPGIT_REPO
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [[ $GPG_ENCRYPT_STORED_EMAIL != "yes" ]]; then
return
fi
if [ ! -f /usr/bin/gpgit.pl ]; then
apt-get -yq install git libmail-gnupg-perl
cd $INSTALL_DIR
function_check git_clone
git_clone $GPGIT_REPO $INSTALL_DIR/gpgit
cd $INSTALL_DIR/gpgit
git checkout $GPGIT_COMMIT -b $GPGIT_COMMIT
set_completion_param "gpgit commit" "$GPGIT_COMMIT"
cp gpgit.pl /usr/bin
fi
# add a procmail rule
if ! grep -q "/usr/bin/gpgit.pl" /home/$MY_USERNAME/.procmailrc; then
echo '' >> /home/$MY_USERNAME/.procmailrc
echo ':0 f' >> /home/$MY_USERNAME/.procmailrc
echo "| /usr/bin/gpgit.pl --encrypt-mode prefer-inline --inline-flatten $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/.procmailrc
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.procmailrc
echo '' >> /etc/skel/.procmailrc
echo ':0 f' >> /etc/skel/.procmailrc
echo -n '| /usr/bin/gpgit.pl --encrypt-mode prefer-inline --inline-flatten $USER@' >> /etc/skel/.procmailrc
echo "$DEFAULT_DOMAIN_NAME" >> /etc/skel/.procmailrc
fi
mark_completed $FUNCNAME
}
function encrypt_outgoing_email {
# encrypts outgoing mail using your GPG public key
# so even if an attacker gains access to the data at rest they still need
# to know your GPG key password to be able to read sent mail
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [[ $GPG_ENCRYPT_STORED_EMAIL != "yes" ]]; then
return
fi
if [ ! -d /home/$MY_USERNAME/.gnupg ]; then
return
fi
if [ ! -f /home/$MY_USERNAME/.muttrc ]; then
return
fi
# obtain your public key ID
if [ ! $MY_GPG_PUBLIC_KEY_ID ]; then
MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
if [ ! "$MY_GPG_PUBLIC_KEY_ID" ]; then
return
fi
if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
return
fi
fi
if ! grep -q "pgp_encrypt_only_command" /home/$MY_USERNAME/.muttrc; then
echo '' >> /home/$MY_USERNAME/.muttrc
echo $'# Encrypt items in the Sent folder' >> /home/$MY_USERNAME/.muttrc
echo "set pgp_encrypt_only_command=\"/usr/lib/mutt/pgpewrap gpg --batch --quiet --no-verbose --output - --encrypt --textmode --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"" >> /home/$MY_USERNAME/.muttrc
else
sed -i "s|set pgp_encrypt_only_command.*|set pgp_encrypt_only_command=\"/usr/lib/mutt/pgpewrap gpg --batch --quiet --no-verbose --output - --encrypt --textmode --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"|g" /home/$MY_USERNAME/.muttrc
fi
if ! grep -q "pgp_encrypt_sign_command" /home/$MY_USERNAME/.muttrc; then
echo "set pgp_encrypt_sign_command=\"/usr/lib/mutt/pgpewrap gpg %?p?--passphrase-fd 0? --batch --quiet --no-verbose --textmode --output - --encrypt --sign %?a?-u %a? --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"" >> /home/$MY_USERNAME/.muttrc
else
sed -i "s|set pgp_encrypt_sign_command.*|set pgp_encrypt_sign_command=\"/usr/lib/mutt/pgpewrap gpg %?p?--passphrase-fd 0? --batch --quiet --no-verbose --textmode --output - --encrypt --sign %?a?-u %a? --armor --always-trust --encrypt-to 0x$MY_GPG_PUBLIC_KEY_ID -- -r %r -- %f\"|g" /home/$MY_USERNAME/.muttrc
fi
mark_completed $FUNCNAME
}
function encrypt_all_email {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $GPG_ENCRYPT_STORED_EMAIL != "yes" ]]; then
return
fi
if [ -f /usr/local/bin/${PROJECT_NAME}-encrypt-mail ]; then
cp /usr/local/bin/${PROJECT_NAME}-encrypt-mail /usr/bin/encmaildir
else
cp /usr/bin/${PROJECT_NAME}-encrypt-mail /usr/bin/encmaildir
fi
chmod +x /usr/bin/encmaildir
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [ ! /home/$MY_USERNAME/README ]; then
touch /home/$MY_USERNAME/README
fi
if ! grep -q $"If you have imported legacy email which is not encrypted" /home/$MY_USERNAME/README; then
echo '' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo $'# Encrypting legacy email' >> /home/$MY_USERNAME/README
echo $'If you have imported legacy email which is not encrypted' >> /home/$MY_USERNAME/README
echo $'then it can be encrypted with the command:' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo ' encmaildir' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo $'But be warned that depending upon how much email you have' >> /home/$MY_USERNAME/README
echo $'this could take a seriously LONG time on the Beaglebone' >> /home/$MY_USERNAME/README
echo $'and may be better done on a faster machine.' >> /home/$MY_USERNAME/README
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
chmod 600 /home/$MY_USERNAME/README
fi
mark_completed $FUNCNAME
}
function email_client {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
apt-get -yq install mutt-patched lynx abook
if [ ! -f /etc/Muttrc ]; then
echo $"ERROR: Mutt does not appear to have installed. $CHECK_MESSAGE"
exit 49
fi
if [ ! -d /home/$MY_USERNAME/.mutt ]; then
mkdir /home/$MY_USERNAME/.mutt
fi
echo "text/html; lynx -dump -width=78 -nolist %s | sed ‘s/^ //’; copiousoutput; needsterminal; nametemplate=%s.html" > /home/$MY_USERNAME/.mutt/mailcap
cp /home/$MY_USERNAME/.mutt/mailcap /etc/skel/.mutt
chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.mutt
chown -R root:root /etc/skel/.mutt
echo 'set mbox_type=Maildir' >> /etc/Muttrc
echo 'set folder="~/Maildir"' >> /etc/Muttrc
echo 'set mask="!^\\.[^.]"' >> /etc/Muttrc
echo 'set mbox="~/Maildir"' >> /etc/Muttrc
echo 'set record="+Sent"' >> /etc/Muttrc
echo 'set postponed="+Drafts"' >> /etc/Muttrc
echo 'set trash="+Trash"' >> /etc/Muttrc
echo 'set spoolfile="~/Maildir"' >> /etc/Muttrc
echo 'auto_view text/x-vcard text/html text/enriched' >> /etc/Muttrc
echo 'set header_cache="+.cache"' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo 'macro index S "<tag-prefix><decode-save>=.learn-spam<enter>" "move to learn-spam"' >> /etc/Muttrc
echo 'macro pager S "<decode-save>=.learn-spam<enter>" "move to learn-spam"' >> /etc/Muttrc
echo 'macro index H "<tag-prefix><decode-copy>=.learn-ham<enter>" "copy to learn-ham"' >> /etc/Muttrc
echo 'macro pager H "<decode-copy>=.learn-ham<enter>" "copy to learn-ham"' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# set up the sidebar' >> /etc/Muttrc
echo 'set sidebar_width=22' >> /etc/Muttrc
echo 'set sidebar_visible=yes' >> /etc/Muttrc
echo "set sidebar_delim='|'" >> /etc/Muttrc
echo 'set sidebar_sort=yes' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo 'set rfc2047_parameters' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# Show inbox and sent items' >> /etc/Muttrc
echo 'mailboxes = =admin =Sent =maybe-spam =spam' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# Alter these colours as needed for maximum bling' >> /etc/Muttrc
echo 'color sidebar_new yellow default' >> /etc/Muttrc
echo 'color normal white default' >> /etc/Muttrc
echo 'color hdrdefault brightcyan default' >> /etc/Muttrc
echo 'color signature green default' >> /etc/Muttrc
echo 'color attachment brightyellow default' >> /etc/Muttrc
echo 'color quoted green default' >> /etc/Muttrc
echo 'color quoted1 white default' >> /etc/Muttrc
echo 'color tilde blue default' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# ctrl-n, ctrl-p to select next, prev folder' >> /etc/Muttrc
echo '# ctrl-o to open selected folder' >> /etc/Muttrc
echo 'bind index \Cp sidebar-prev' >> /etc/Muttrc
echo 'bind index \Cn sidebar-next' >> /etc/Muttrc
echo 'bind index \Co sidebar-open' >> /etc/Muttrc
echo 'bind pager \Cp sidebar-prev' >> /etc/Muttrc
echo 'bind pager \Cn sidebar-next' >> /etc/Muttrc
echo 'bind pager \Co sidebar-open' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# ctrl-b toggles sidebar visibility' >> /etc/Muttrc
echo "macro index,pager \Cb '<enter-command>toggle sidebar_visible<enter><redraw-screen>' 'toggle sidebar'" >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# esc-m Mark new messages as read' >> /etc/Muttrc
echo 'macro index <esc>m "T~N<enter>;WNT~O<enter>;WO\CT~T<enter>" "mark all messages read"' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# Collapsing threads' >> /etc/Muttrc
echo 'macro index [ "<collapse-thread>" "collapse/uncollapse thread"' >> /etc/Muttrc
echo 'macro index ] "<collapse-all>" "collapse/uncollapse all threads"' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# threads containing new messages' >> /etc/Muttrc
echo 'uncolor index "~(~N)"' >> /etc/Muttrc
echo 'color index brightblue default "~(~N)"' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# new messages themselves' >> /etc/Muttrc
echo 'uncolor index "~N"' >> /etc/Muttrc
echo 'color index brightyellow default "~N"' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# GPG/PGP integration' >> /etc/Muttrc
echo '# this set the number of seconds to keep in memory the passphrase used to encrypt/sign' >> /etc/Muttrc
echo 'set pgp_timeout=1800' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# automatically sign and encrypt with PGP/MIME' >> /etc/Muttrc
echo 'set pgp_autosign # autosign all outgoing mails' >> /etc/Muttrc
echo 'set pgp_autoencrypt # Try to encrypt automatically' >> /etc/Muttrc
echo 'set pgp_replyencrypt # autocrypt replies to crypted' >> /etc/Muttrc
echo 'set pgp_replysign # autosign replies to signed' >> /etc/Muttrc
echo 'set pgp_auto_decode=yes # decode attachments' >> /etc/Muttrc
echo 'set fcc_clear=no # Keep encrypted copy of sent encrypted mail' >> /etc/Muttrc
echo 'unset smime_is_default' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo 'set alias_file=~/.mutt-alias' >> /etc/Muttrc
echo 'source ~/.mutt-alias' >> /etc/Muttrc
echo 'set query_command= "abook --mutt-query \"%s\""' >> /etc/Muttrc
echo 'macro index,pager A "<pipe-message>abook --add-email-quiet<return>" "add the sender address to abook"' >> /etc/Muttrc
echo '' >> /etc/Muttrc
echo '# Optional relay of SMTP via ISP' >> /etc/Muttrc
echo '#set smtp_url="smtps://username:password@isp_mail_domain:465/"' >> /etc/Muttrc
cp -f /etc/Muttrc /home/$MY_USERNAME/.muttrc
cp -f /etc/Muttrc /etc/skel/.muttrc
touch /home/$MY_USERNAME/.mutt-alias
cp /home/$MY_USERNAME/.mutt-alias /etc/skel/.mutt-alias
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.muttrc
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.mutt-alias
# default user on generic images
if [ -d /home/${GENERIC_IMAGE_USERNAME} ]; then
cp -f /etc/Muttrc /home/${GENERIC_IMAGE_USERNAME}/.muttrc
chown ${GENERIC_IMAGE_USERNAME}:${GENERIC_IMAGE_USERNAME} /home/${GENERIC_IMAGE_USERNAME}/.muttrc
touch /home/${GENERIC_IMAGE_USERNAME}/.mutt-alias
chown ${GENERIC_IMAGE_USERNAME}:${GENERIC_IMAGE_USERNAME} /home/${GENERIC_IMAGE_USERNAME}/.mutt-alias
fi
mark_completed $FUNCNAME
}
function email_archiving {
if [ ! -d /etc/exim4 ]; then
return
fi
# ensure that the mail archive script is up to date
if [ -f /usr/local/bin/${PROJECT_NAME}-archive-mail ]; then
cp /usr/local/bin/${PROJECT_NAME}-archive-mail /etc/cron.daily/archivemail
else
if [ -f /usr/bin/${PROJECT_NAME}-archive-mail ]; then
cp /usr/bin/${PROJECT_NAME}-archive-mail /etc/cron.daily/archivemail
else
echo "/usr/bin/${PROJECT_NAME}-archive-mail was not found. ${PROJECT_NAME} might not have fully installed."
exit 62379
fi
fi
chmod +x /etc/cron.daily/archivemail
# update to the next commit
function_check set_repo_commit
set_repo_commit $INSTALL_DIR/cleanup-maildir "cleanup-maildir commit" "$CLEANUP_MAILDIR_COMMIT" $CLEANUP_MAILDIR_REPO
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [ ! -d $INSTALL_DIR ]; then
mkdir $INSTALL_DIR
fi
cd $INSTALL_DIR
function_check git_clone
git_clone $CLEANUP_MAILDIR_REPO $INSTALL_DIR/cleanup-maildir
cd $INSTALL_DIR/cleanup-maildir
git checkout $CLEANUP_MAILDIR_COMMIT -b $CLEANUP_MAILDIR_COMMIT
set_completion_param "cleanup-maildir commit" "$CLEANUP_MAILDIR_COMMIT"
cp $INSTALL_DIR/cleanup-maildir/cleanup-maildir /usr/bin
mark_completed $FUNCNAME
}
# Ensure that the from field is correct when sending email from Mutt
function email_from_address {
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [ ! -f /home/$MY_USERNAME/.muttrc ]; then
return
fi
if grep -q "set from=" /home/$MY_USERNAME/.muttrc; then
sed -i "s|set from=.*|set from='$MY_NAME <$MY_EMAIL_ADDRESS>'|g" /home/$MY_USERNAME/.muttrc
else
echo "set from='$MY_NAME <$MY_EMAIL_ADDRESS>'" >> /home/$MY_USERNAME/.muttrc
fi
mark_completed $FUNCNAME
}
function create_public_mailing_list {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [ ! $PUBLIC_MAILING_LIST ]; then
return
fi
# does the mailing list have a separate domain name?
if [ ! $PUBLIC_MAILING_LIST_DOMAIN_NAME ]; then
PUBLIC_MAILING_LIST_DOMAIN_NAME=$DEFAULT_DOMAIN_NAME
fi
PUBLIC_MAILING_LIST_USER="mlmmj"
apt-get -yq install mlmmj
adduser --system $PUBLIC_MAILING_LIST_USER
addgroup $PUBLIC_MAILING_LIST_USER
adduser $PUBLIC_MAILING_LIST_USER $PUBLIC_MAILING_LIST_USER
echo ''
echo $"Creating the $PUBLIC_MAILING_LIST mailing list"
echo ''
# create the list
mlmmj-make-ml -a -L "$PUBLIC_MAILING_LIST" -c $PUBLIC_MAILING_LIST_USER
echo 'SYSTEM_ALIASES_PIPE_TRANSPORT = address_pipe' > /etc/exim4/conf.d/main/000_localmacros
echo "SYSTEM_ALIASES_USER = $PUBLIC_MAILING_LIST_USER" >> /etc/exim4/conf.d/main/000_localmacros
echo "SYSTEM_ALIASES_GROUP = $PUBLIC_MAILING_LIST_USER" >> /etc/exim4/conf.d/main/000_localmacros
# router
echo 'mlmmj_router:' > /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' debug_print = "R: mlmmj_router for $local_part@$domain"' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' driver = accept' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' domains = +mlmmj_domains' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' #require_files = MLMMJ_HOME/${lc::$local_part}' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' # Use this instead, if you dont want to give Exim rx rights to mlmmj spool.' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' # Exim will then spawn a new process running under the UID of "mlmmj".' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' require_files = mlmmj:MLMMJ_HOME/${lc::$local_part}' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' local_part_suffix = +*' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' local_part_suffix_optional' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' headers_remove = Delivered-To' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' headers_add = Delivered-To: $local_part$local_part_suffix@$domain' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
echo ' transport = mlmmj_transport' >> /etc/exim4/conf.d/router/750_exim4-config_mlmmj
# transport
echo 'mlmmj_transport:' > /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' debug_print = "T: mlmmj_transport for $local_part@$domain"' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' driver = pipe' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' return_path_add' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' user = mlmmj' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' group = mlmmj' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' home_directory = MLMMJ_HOME' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' current_directory = MLMMJ_HOME' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
echo ' command = /usr/bin/mlmmj-receive -F -L MLMMJ_HOME/${lc:$local_part}' >> /etc/exim4/conf.d/transport/40_exim4-config_mlmmj
if ! grep -q "MLMMJ_HOME=/var/spool/mlmmj" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
sed -i '/MAIN CONFIGURATION SETTINGS/a\MLMMJ_HOME=/var/spool/mlmmj' /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
fi
if ! grep -q "domainlist mlmmj_domains =" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
sed -i "/MLMMJ_HOME/a\domainlist mlmmj_domains = $PUBLIC_MAILING_LIST_DOMAIN_NAME" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
fi
if ! grep -q "delay_warning_condition =" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
sed -i '/domainlist mlmmj_domains =/a\delay_warning_condition = ${if match_domain{$domain}{+mlmmj_domains}{no}{yes}}' /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
fi
if ! grep -q ": +mlmmj_domains" /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs; then
sed -i 's/domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS/domainlist relay_to_domains = MAIN_RELAY_TO_DOMAINS : +mlmmj_domains/g' /etc/exim4/conf.d/main/01_exim4-config_listmacrosdefs
fi
if ! grep -q "! +mlmmj_domains" /etc/exim4/conf.d/router/200_exim4-config_primary; then
sed -i 's/domains = ! +local_domains/domains = ! +mlmmj_domains : ! +local_domains/g' /etc/exim4/conf.d/router/200_exim4-config_primary
fi
update-exim4.conf.template -r
update-exim4.conf
systemctl restart exim4
if ! grep -q $"$PUBLIC_MAILING_LIST mailing list" /home/$MY_USERNAME/README; then
echo '' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo $"$PUBLIC_MAILING_LIST mailing list" >> /home/$MY_USERNAME/README
echo '=================================' >> /home/$MY_USERNAME/README
echo $"To subscribe to the $PUBLIC_MAILING_LIST mailing list send a" >> /home/$MY_USERNAME/README
echo $"cleartext email to $PUBLIC_MAILING_LIST+subscribe@$DEFAULT_DOMAIN_NAME" >> /home/$MY_USERNAME/README
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
chmod 600 /home/$MY_USERNAME/README
fi
${PROJECT_NAME}-addlist -u $MY_USERNAME -l "$PUBLIC_MAILING_LIST" -s "$PUBLIC_MAILING_LIST"
mark_completed $FUNCNAME
}
function create_private_mailing_list {
if [ ! -d /etc/exim4 ]; then
return
fi
# This installation doesn't work, results in ruby errors
# There is currently no schleuder package for Debian jessie
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [ ! $PRIVATE_MAILING_LIST ]; then
return
fi
if [[ $PRIVATE_MAILING_LIST == $MY_USERNAME ]]; then
echo $'The name of the private mailing list should not be the same as your username'
exit 10
fi
if [ ! $MY_GPG_PUBLIC_KEY ]; then
echo $'To create a private mailing list you need to specify a file'
echo $'containing your exported GPG key within MY_GPG_PUBLIC_KEY at'
echo $'the top of the script'
exit 11
fi
apt-get -yq install ruby ruby-dev ruby-gpgme libgpgme11-dev libmagic-dev
gem install schleuder
schleuder-fix-gem-dependencies
schleuder-init-setup --gem
# NOTE: this is version number sensitive and so might need changing
ln -s /var/lib/gems/2.1.0/gems/schleuder-2.2.4 /var/lib/schleuder
sed -i 's/#smtp_port: 25/smtp_port: 465/g' /etc/schleuder/schleuder.conf
sed -i 's/#superadminaddr: root@localhost/superadminaddr: root@localhost' /etc/schleuder/schleuder.conf
schleuder-newlist $PRIVATE_MAILING_LIST@$DEFAULT_DOMAIN_NAME -realname "$PRIVATE_MAILING_LIST" -adminaddress $MY_EMAIL_ADDRESS -initmember $MY_EMAIL_ADDRESS -initmemberkey $MY_GPG_PUBLIC_KEY -nointeractive
${PROJECT_NAME}-addemail -u $MY_USERNAME -e $PRIVATE_MAILING_LIST@$DEFAULT_DOMAIN_NAME -l $PRIVATE_MAILING_LIST
echo 'schleuder:' > /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' debug_print = "R: schleuder for $local_part@$domain"' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' driver = accept' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' local_part_suffix_optional' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' local_part_suffix = +* : -bounce : -sendkey' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' domains = +local_domains' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' user = schleuder' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' group = schleuder' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' require_files = schleuder:+/var/lib/schleuder/$domain/${local_part}' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo ' transport = schleuder_transport' >> /etc/exim4/conf.d/router/550_exim4-config_schleuder
echo 'schleuder_transport:' > /etc/exim4/conf.d/transport/30_exim4-config_schleuder
echo ' debug_print = "T: schleuder_transport for $local_part@$domain"' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
echo ' driver = pipe' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
echo ' home_directory = "/var/lib/schleuder/$domain/$local_part"' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
echo ' command = "/usr/bin/schleuder $local_part@$domain"' >> /etc/exim4/conf.d/transport/30_exim4-config_schleuder
chown -R schleuder:schleuder /var/lib/schleuder
update-exim4.conf.template -r
update-exim4.conf
systemctl restart exim4
useradd -d /var/schleuderlists -s /bin/false schleuder
adduser Debian-exim schleuder
usermod -a -G mail schleuder
#exim -d -bt $PRIVATE_MAILING_LIST@$DEFAULT_DOMAIN_NAME
mark_completed $FUNCNAME
}
function split_gpg_key_into_fragments {
# split the gpg key into fragments if social key management is enabled
if [[ $ENABLE_SOCIAL_KEY_MANAGEMENT == "yes" ]]; then
echo 'Splitting GPG key. You may need to enter your passphrase.'
${PROJECT_NAME}-splitkey -u $MY_USERNAME -e $MY_EMAIL_ADDRESS --fullname "$MY_NAME"
if [ ! -d /home/$MY_USERNAME/.gnupg_fragments ]; then
echo 'Yhe GPG key could not be split'
exit 86548
fi
fi
}
function import_email {
if [ ! -d /etc/exim4 ]; then
return
fi
EMAIL_COMPLETE_MSG=$"
*** ${PROJECT_NAME} mailbox installation is complete ***
Now on your internet router forward ports
25, 587, 465, 993 and 2222 to the ${PROJECT_NAME}
"
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
if [[ $SYSTEM_TYPE == "mail"* ]]; then
function_check backup_to_friends_servers
backup_to_friends_servers
function_check install_tripwire
install_tripwire
function_check split_gpg_key_into_fragments
split_gpg_key_into_fragments
clear
echo ''
echo "$EMAIL_COMPLETE_MSG"
if [ -d $USB_MOUNT ]; then
umount $USB_MOUNT
rm -rf $USB_MOUNT
echo $' You can now remove the USB drive'
fi
exit 0
fi
return
fi
mark_completed $FUNCNAME
if [[ $SYSTEM_TYPE == "mail"* ]]; then
function_check backup_to_friends_servers
backup_to_friends_servers
function_check install_tripwire
install_tripwire
function_check split_gpg_key_into_fragments
split_gpg_key_into_fragments
# unmount any attached usb drive
clear
echo ''
echo "$EMAIL_COMPLETE_MSG"
echo ''
if [ -d $USB_MOUNT ]; then
umount $USB_MOUNT
rm -rf $USB_MOUNT
echo $' You can now remove the USB drive'
fi
exit 0
fi
}
function remove_email {
echo ''
}
function install_email_with_tor {
apt-get -yq remove postfix
apt-get -yq install exim4 sasl2-bin swaks libnet-ssleay-perl procmail xinetd
if [ ! -d /etc/exim4 ]; then
echo $"ERROR: Exim does not appear to have installed. $CHECK_MESSAGE"
exit 48
fi
onion_service_name='email'
if [ ! -d /var/lib/tor ]; then
echo $"No Tor installation found. ${onion_service_name} onion site cannot be configured."
exit 877367
fi
if ! grep -q "hidden_service_${onion_service_name}" /etc/tor/torrc; then
echo "HiddenServiceDir /var/lib/tor/hidden_service_${onion_service_name}/" >> /etc/tor/torrc
echo 'HiddenServicePort 25 127.0.0.1:25' >> /etc/tor/torrc
echo 'HiddenServicePort 587 127.0.0.1:587' >> /etc/tor/torrc
echo 'HiddenServicePort 465 127.0.0.1:465' >> /etc/tor/torrc
echo 'HiddenServicePort 993 127.0.0.1:993' >> /etc/tor/torrc
echo $"Added onion site for ${onion_service_name}"
fi
onion_update
function_check wait_for_onion_service
wait_for_onion_service ${onion_service_name}
if [ ! -f /var/lib/tor/hidden_service_${onion_service_name}/hostname ]; then
echo $"${onion_service_name} onion site hostname not found"
exit 76362
fi
EMAIL_ONION_HOSTNAME=$(cat /var/lib/tor/hidden_service_${onion_service_name}/hostname)
if [[ $ONION_ONLY != "no" ]]; then
function_check set_hostname
set_hostname ${EMAIL_ONION_HOSTNAME}
MY_EMAIL_ADDRESS=${MY_USERNAME}@${DEFAULT_DOMAIN_NAME}
fi
set_completion_param "email onion domain" "${EMAIL_ONION_HOSTNAME}"
# see https://github.com/petterreinholdtsen/exim4-smtorp
echo '# tor stuff first' > /etc/exim4/conf.d/router/100_exim4-smtorp
echo '#' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '# if were submitting mail *from* a .tor/.onion address,' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '# make sure any header lines that may give us away is' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '# stripped out, and add a new, cryptic Message-ID.' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '# In address_data we store the name we should HELO as.' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo 'tor_to_any:' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' debug_print = "R: manualroute from .onion to $local_part@$domain"' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' driver = manualroute' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' domains = ! +local_domains' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' condition = ${if match {$sender_address_domain}{\N.*\.(onion|tor)$\N}}' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' address_data = $sender_address_domain' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' transport = remote_smtp_onion' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' self = send' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' route_list = * localhost' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' headers_remove = Received:Message-ID:X-Mailer:User-Agent' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' headers_add = Message-ID: <${lc:${sha1:$message_id}}@$sender_address_domain>' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '# this catches the case where were submitting mail' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '# from a regular email address where we dont need to' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo '# rewrite any headers' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo 'any_to_tor:' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' debug_print = "R: manualroute for $local_part@$domain"' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' driver = manualroute' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' domains = ! +local_domains' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' transport = remote_smtp_onion' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' self = send' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' route_list = *.onion localhost ; *.tor localhost' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo ' address_data = $smtp_active_hostname' >> /etc/exim4/conf.d/router/100_exim4-smtorp
echo 'remote_smtp_onion:' > /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' debug_print = "T: remote_smtp_onion for $local_part@$original_domain"' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' driver = smtp' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo '' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' # set helo_data to where we want to connect to,' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' # for the proxy program tor-smtp' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' helo_data = "$address_data $original_domain"' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo '' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' # wherever we configured our script at' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' port = 12668' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo '' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' # cannot use TLS otherwise it will EHLO again!!' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
echo ' hosts_avoid_tls = *' >> /etc/exim4/conf.d/transport/100_exim4-smtorp
if [ ! -d $INSTALL_DIR ]; then
mkdir -p $INSTALL_DIR
fi
cd $INSTALL_DIR
function_check git_clone
git_clone $EXIM_ONION_REPO $INSTALL_DIR/exim4-smtorp
cd $INSTALL_DIR/exim4-smtorp/tor-smtp
make
if [ ! -f $INSTALL_DIR/exim4-smtorp/tor-smtp/tor-smtp ]; then
echo $'Unable to make tor smtp transport'
exit 52629
fi
if [ ! -d /usr/lib/exim4-smtorp ]; then
mkdir /usr/lib/exim4-smtorp
fi
cp $INSTALL_DIR/exim4-smtorp/tor-smtp/tor-smtp /usr/lib/exim4-smtorp/tor-smtp
if [ ! -f /usr/lib/exim4-smtorp/tor-smtp ]; then
echo $'Unable to copy tor-smtp'
exit 83503
fi
cp $INSTALL_DIR/exim4-smtorp/xinetd /etc/xinetd.d/tor-smtp
if [ ! -f /etc/xinetd.d/tor-smtp ]; then
echo $'Unable to copy to xinetd.d'
exit 835954
fi
systemctl restart xinetd
# configure for Maildir format
sed -i 's/MAIL_DIR/#MAIL_DIR/g' /etc/login.defs
sed -i 's|#MAIL_FILE.*|MAIL_FILE Maildir/|g' /etc/login.defs
if ! grep -q "export MAIL" /etc/profile; then
echo 'export MAIL=~/Maildir' >> /etc/profile
fi
sed -i 's|pam_mail.so standard|pam_mail.so dir=~/Maildir standard|g' /etc/pam.d/login
sed -i 's|pam_mail.so standard noenv|pam_mail.so dir=~/Maildir standard|g' /etc/pam.d/sshd
sed -i 's|pam_mail.so nopen|pam_mail.so dir=~/Maildir nopen|g' /etc/pam.d/su
echo "dc_eximconfig_configtype='internet'" > /etc/exim4/update-exim4.conf.conf
if [[ $ONION_ONLY == "no" ]]; then
# both ICANN and onion domains
echo "dc_other_hostnames='${DEFAULT_DOMAIN_NAME};mail.${DEFAULT_DOMAIN_NAME};${EMAIL_ONION_HOSTNAME}'" >> /etc/exim4/update-exim4.conf.conf
else
echo "dc_other_hostnames='${EMAIL_ONION_HOSTNAME}'" >> /etc/exim4/update-exim4.conf.conf
fi
echo "dc_local_interfaces=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_readhost=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_relay_domains=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_minimaldns='false'" >> /etc/exim4/update-exim4.conf.conf
IPv4_address=$(get_ipv4_address)
IPv4_address_base=$(echo "$IPv4_address" | awk -F '.' '{print $1"."$2"."$3}')
RELAY_NETS="${IPv4_address_base}.0/24"
if [ $LOCAL_NETWORK_STATIC_IP_ADDRESS ]; then
RELAY_NETS=$(echo $LOCAL_NETWORK_STATIC_IP_ADDRESS | awk -F '.' '{print $1 "." $2 "." $3 ".0/24"}')
fi
echo "dc_relay_nets='$RELAY_NETS'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_smarthost=''" >> /etc/exim4/update-exim4.conf.conf
echo "CFILEMODE='644'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_use_split_config='false'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_hide_mailname=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_mailname_in_oh='true'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_localdelivery='maildir_home'" >> /etc/exim4/update-exim4.conf.conf
update-exim4.conf
sed -i "s/START=no/START=yes/g" /etc/default/saslauthd
systemctl start saslauthd
# make a tls certificate for email
if [ ! -f /etc/ssl/certs/exim.dhparam ]; then
${PROJECT_NAME}-addcert -h exim --dhkey $DH_KEYLENGTH
check_certificates exim
fi
cp /etc/ssl/private/exim.key /etc/exim4
cp /etc/ssl/certs/exim.crt /etc/exim4
cp /etc/ssl/certs/exim.dhparam /etc/exim4
chown root:Debian-exim /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam
chmod 640 /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam
sed -i '/login_saslauthd_server/,/.endif/ s/# *//' /etc/exim4/exim4.conf.template
if ! grep -q "MAIN_TLS_ENABLE = true" /etc/exim4/exim4.conf.template; then
sed -i "/.ifdef MAIN_HARDCODE_PRIMARY_HOSTNAME/i\MAIN_HARDCODE_PRIMARY_HOSTNAME =\nMAIN_TLS_ENABLE = true" /etc/exim4/exim4.conf.template
else
sed -i "s|MAIN_HARDCODE_PRIMARY_HOSTNAME =.*|MAIN_HARDCODE_PRIMARY_HOSTNAME =|g" /etc/exim4/exim4.conf.template
fi
sed -i "s|SMTPLISTENEROPTIONS=''|SMTPLISTENEROPTIONS='-oX 465:25:587 -oP /var/run/exim4/exim.pid'|g" /etc/default/exim4
if ! grep -q "tls_on_connect_ports=465" /etc/exim4/exim4.conf.template; then
sed -i '/SSL configuration for exim/i\tls_on_connect_ports=465' /etc/exim4/exim4.conf.template
fi
if ! grep -q "# don't send system passwords" /etc/exim4/exim4.conf.template; then
sed -i "s|don't send system passwords.*|# don't send system passwords unencrypted|g" /etc/exim4/exim4.conf.template
fi
adduser $MY_USERNAME sasl
addgroup Debian-exim sasl
systemctl restart exim4
if [ ! -d /etc/skel/log ]; then
mkdir -m 700 /etc/skel/log
fi
if [ ! -d /etc/skel/Maildir ]; then
mkdir -m 700 /etc/skel/.mutt
mkdir -m 700 /etc/skel/Maildir
mkdir -m 700 /etc/skel/Maildir/new
mkdir -m 700 /etc/skel/Maildir/cur
mkdir -m 700 /etc/skel/Maildir/Sent
mkdir -m 700 /etc/skel/Maildir/Sent/tmp
mkdir -m 700 /etc/skel/Maildir/Sent/cur
mkdir -m 700 /etc/skel/Maildir/Sent/new
mkdir -m 700 /etc/skel/Maildir/.learn-spam
mkdir -m 700 /etc/skel/Maildir/.learn-spam/cur
mkdir -m 700 /etc/skel/Maildir/.learn-spam/new
mkdir -m 700 /etc/skel/Maildir/.learn-spam/tmp
mkdir -m 700 /etc/skel/Maildir/.learn-ham
mkdir -m 700 /etc/skel/Maildir/.learn-ham/cur
mkdir -m 700 /etc/skel/Maildir/.learn-ham/new
mkdir -m 700 /etc/skel/Maildir/.learn-ham/tmp
ln -s /etc/skel/Maildir/.learn-spam /etc/skel/Maildir/spam
ln -s /etc/skel/Maildir/.learn-ham /etc/skel/Maildir/ham
fi
if [ ! -d /home/$MY_USERNAME/Maildir ]; then
mkdir -m 700 /home/$MY_USERNAME/.mutt
mkdir -m 700 /home/$MY_USERNAME/Maildir
mkdir -m 700 /home/$MY_USERNAME/Maildir/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/tmp
mkdir -m 700 /home/$MY_USERNAME/Maildir/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/tmp
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/tmp
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/tmp
ln -s /home/$MY_USERNAME/Maildir/.learn-spam /home/$MY_USERNAME/Maildir/spam
ln -s /home/$MY_USERNAME/Maildir/.learn-ham /home/$MY_USERNAME/Maildir/ham
chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Maildir
fi
function_check configure_firewall_for_email
configure_firewall_for_email
dpkg-reconfigure --frontend noninteractive exim4-config
}
function install_email_basic {
apt-get -yq remove postfix
apt-get -yq install exim4 sasl2-bin swaks libnet-ssleay-perl procmail
if [ ! -d /etc/exim4 ]; then
echo $"ERROR: Exim does not appear to have installed. $CHECK_MESSAGE"
exit 48
fi
# configure for Maildir format
sed -i 's/MAIL_DIR/#MAIL_DIR/g' /etc/login.defs
sed -i 's|#MAIL_FILE.*|MAIL_FILE Maildir/|g' /etc/login.defs
if ! grep -q "export MAIL" /etc/profile; then
echo 'export MAIL=~/Maildir' >> /etc/profile
fi
sed -i 's|pam_mail.so standard|pam_mail.so dir=~/Maildir standard|g' /etc/pam.d/login
sed -i 's|pam_mail.so standard noenv|pam_mail.so dir=~/Maildir standard|g' /etc/pam.d/sshd
sed -i 's|pam_mail.so nopen|pam_mail.so dir=~/Maildir nopen|g' /etc/pam.d/su
echo "dc_eximconfig_configtype='internet'" > /etc/exim4/update-exim4.conf.conf
echo "dc_other_hostnames='${DEFAULT_DOMAIN_NAME};mail.${DEFAULT_DOMAIN_NAME}'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_local_interfaces=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_readhost=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_relay_domains=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_minimaldns='false'" >> /etc/exim4/update-exim4.conf.conf
IPv4_address=$(get_ipv4_address)
IPv4_address_base=$(echo "$IPv4_address" | awk -F '.' '{print $1"."$2"."$3}')
RELAY_NETS="${IPv4_address_base}.0/24"
if [ $LOCAL_NETWORK_STATIC_IP_ADDRESS ]; then
RELAY_NETS=$(echo $LOCAL_NETWORK_STATIC_IP_ADDRESS | awk -F '.' '{print $1 "." $2 "." $3 ".0/24"}')
fi
echo "dc_relay_nets='$RELAY_NETS'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_smarthost=''" >> /etc/exim4/update-exim4.conf.conf
echo "CFILEMODE='644'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_use_split_config='false'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_hide_mailname=''" >> /etc/exim4/update-exim4.conf.conf
echo "dc_mailname_in_oh='true'" >> /etc/exim4/update-exim4.conf.conf
echo "dc_localdelivery='maildir_home'" >> /etc/exim4/update-exim4.conf.conf
update-exim4.conf
sed -i "s/START=no/START=yes/g" /etc/default/saslauthd
systemctl start saslauthd
# make a tls certificate for email
if [ ! -f /etc/ssl/certs/exim.dhparam ]; then
${PROJECT_NAME}-addcert -h exim --dhkey $DH_KEYLENGTH
check_certificates exim
fi
cp /etc/ssl/private/exim.key /etc/exim4
cp /etc/ssl/certs/exim.crt /etc/exim4
cp /etc/ssl/certs/exim.dhparam /etc/exim4
chown root:Debian-exim /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam
chmod 640 /etc/exim4/exim.key /etc/exim4/exim.crt /etc/exim4/exim.dhparam
if [ ! -d /etc/skel/log ]; then
mkdir -m 700 /etc/skel/log
fi
if [ ! -d /etc/skel/Maildir ]; then
mkdir -m 700 /etc/skel/.mutt
mkdir -m 700 /etc/skel/Maildir
mkdir -m 700 /etc/skel/Maildir/new
mkdir -m 700 /etc/skel/Maildir/cur
mkdir -m 700 /etc/skel/Maildir/Sent
mkdir -m 700 /etc/skel/Maildir/Sent/tmp
mkdir -m 700 /etc/skel/Maildir/Sent/cur
mkdir -m 700 /etc/skel/Maildir/Sent/new
mkdir -m 700 /etc/skel/Maildir/.learn-spam
mkdir -m 700 /etc/skel/Maildir/.learn-spam/cur
mkdir -m 700 /etc/skel/Maildir/.learn-spam/new
mkdir -m 700 /etc/skel/Maildir/.learn-spam/tmp
mkdir -m 700 /etc/skel/Maildir/.learn-ham
mkdir -m 700 /etc/skel/Maildir/.learn-ham/cur
mkdir -m 700 /etc/skel/Maildir/.learn-ham/new
mkdir -m 700 /etc/skel/Maildir/.learn-ham/tmp
ln -s /etc/skel/Maildir/.learn-spam /etc/skel/Maildir/spam
ln -s /etc/skel/Maildir/.learn-ham /etc/skel/Maildir/ham
fi
if [ ! -d /home/$MY_USERNAME/Maildir ]; then
mkdir -m 700 /home/$MY_USERNAME/.mutt
mkdir -m 700 /home/$MY_USERNAME/Maildir
mkdir -m 700 /home/$MY_USERNAME/Maildir/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/tmp
mkdir -m 700 /home/$MY_USERNAME/Maildir/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/tmp
mkdir -m 700 /home/$MY_USERNAME/Maildir/Sent/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-spam/tmp
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/cur
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/new
mkdir -m 700 /home/$MY_USERNAME/Maildir/.learn-ham/tmp
ln -s /home/$MY_USERNAME/Maildir/.learn-spam /home/$MY_USERNAME/Maildir/spam
ln -s /home/$MY_USERNAME/Maildir/.learn-ham /home/$MY_USERNAME/Maildir/ham
chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Maildir
fi
function_check configure_firewall_for_email
configure_firewall_for_email
dpkg-reconfigure --frontend noninteractive exim4-config
systemctl restart exim4
}
function email_change_relay {
curr_ip_address="$1"
email_relay_base=$(echo "$curr_ip_address" | awk -F '.' '{print $1"."$2"."$3}')
RELAY_NETS="${email_relay_base}.0/24"
sed -i "s|dc_relay_nets=.*|dc_relay_nets='$RELAY_NETS'|g" /etc/exim4/update-exim4.conf.conf
dpkg-reconfigure --frontend noninteractive exim4-config
}
function create_procmail {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
if [ ! -f /home/$MY_USERNAME/.procmailrc ]; then
echo 'MAILDIR=$HOME/Maildir' > /home/$MY_USERNAME/.procmailrc
echo 'DEFAULT=$MAILDIR/' >> /home/$MY_USERNAME/.procmailrc
echo 'LOGFILE=$HOME/log/procmail.log' >> /home/$MY_USERNAME/.procmailrc
echo 'LOGABSTRACT=all' >> /home/$MY_USERNAME/.procmailrc
echo '' >> /home/$MY_USERNAME/.procmailrc
echo $"# Tripwire reports which have no violations don't need to be logged" >> /home/$MY_USERNAME/.procmailrc
echo ':0 BD:' >> /home/$MY_USERNAME/.procmailrc
TRIPWIRE_VIOLATIONS_STR=$'Total violations found: 0'
echo " * .*$TRIPWIRE_VIOLATIONS_STR" >> /home/$MY_USERNAME/.procmailrc
echo '/dev/null' >> /home/$MY_USERNAME/.procmailrc
echo '' >> /home/$MY_USERNAME/.procmailrc
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.procmailrc
fi
mkdir -p /home/$MY_USERNAME/Maildir/admin/new
mkdir -p /home/$MY_USERNAME/Maildir/admin/cur
chown -R $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/Maildir/admin
if [ ! -f /etc/skel/.procmailrc ]; then
cp /home/$MY_USERNAME/.procmailrc /etc/skel/.procmailrc
chown root:root /etc/skel/.procmailrc
fi
mark_completed $FUNCNAME
}
function handle_admin_emails {
# keep emails for root in a separate folder
if [ -d /home/$MY_USERNAME/Maildir/admin ]; then
return
fi
${PROJECT_NAME}-addemail -u $MY_USERNAME -e "root@$DEFAULT_DOMAIN_NAME" -g admin --public no
}
function spam_filtering {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
apt-get -yq install exim4-daemon-heavy
apt-get -yq install spamassassin
if [ ! -f /etc/default/spamassassin ]; then
echo 'Spamassassin was not installed'
exit 72570
fi
sa-update -v
sed -i 's/ENABLED=0/ENABLED=1/g' /etc/default/spamassassin
sed -i 's/# spamd_address = 127.0.0.1 783/spamd_address = 127.0.0.1 783/g' /etc/exim4/exim4.conf.template
# This configuration is based on https://wiki.debian.org/DebianSpamAssassin
sed -i 's/local_parts = postmaster/local_parts = postmaster:abuse/g' /etc/exim4/conf.d/acl/30_exim4-config_check_rcpt
sed -i '/domains = +local_domains : +relay_to_domains/a\ set acl_m0 = rfcnames' /etc/exim4/conf.d/acl/30_exim4-config_check_rcpt
sed -i 's/accept/accept condition = ${if eq{$acl_m0}{rfcnames} {1}{0}}/g' /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo 'warn message = X-Spam-Score: $spam_score ($spam_bar)' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo ' spam = nobody:true' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo 'warn message = X-Spam-Flag: YES' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo ' spam = nobody' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo 'warn message = X-Spam-Report: $spam_report' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo ' spam = nobody' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo '# reject spam at high scores (> 12)' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo 'deny message = This message scored $spam_score spam points.' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo ' spam = nobody:true' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
echo ' condition = ${if >{$spam_score_int}{120}{1}{0}}' >> /etc/exim4/conf.d/acl/40_exim4-config_check_data
# procmail configuration
echo '# get spamassassin to check emails' >> /home/$MY_USERNAME/.procmailrc
echo ':0fw: .spamassassin.lock' >> /home/$MY_USERNAME/.procmailrc
echo ' * < 256000' >> /home/$MY_USERNAME/.procmailrc
echo '| spamc' >> /home/$MY_USERNAME/.procmailrc
echo '# strong spam are discarded' >> /home/$MY_USERNAME/.procmailrc
echo ':0' >> /home/$MY_USERNAME/.procmailrc
echo ' * ^X-Spam-Level: \*\*\*\*\*\*' >> /home/$MY_USERNAME/.procmailrc
echo '/dev/null' >> /home/$MY_USERNAME/.procmailrc
echo '# weak spam are kept just in case - clear this out every now and then' >> /home/$MY_USERNAME/.procmailrc
echo ':0' >> /home/$MY_USERNAME/.procmailrc
echo ' * ^X-Spam-Level: \*\*\*\*\*' >> /home/$MY_USERNAME/.procmailrc
echo 'maybe-spam/' >> /home/$MY_USERNAME/.procmailrc
echo '# otherwise, marginal spam goes here for revision' >> /home/$MY_USERNAME/.procmailrc
echo ':0' >> /home/$MY_USERNAME/.procmailrc
echo ' * ^X-Spam-Level: \*\*' >> /home/$MY_USERNAME/.procmailrc
echo 'spam/' >> /home/$MY_USERNAME/.procmailrc
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.procmailrc
echo '# get spamassassin to check emails' >> /etc/skel/.procmailrc
echo ':0fw: .spamassassin.lock' >> /etc/skel/.procmailrc
echo ' * < 256000' >> /etc/skel/.procmailrc
echo '| spamc' >> /etc/skel/.procmailrc
echo '# strong spam are discarded' >> /etc/skel/.procmailrc
echo ':0' >> /etc/skel/.procmailrc
echo ' * ^X-Spam-Level: \*\*\*\*\*\*' >> /etc/skel/.procmailrc
echo '/dev/null' >> /etc/skel/.procmailrc
echo '# weak spam are kept just in case - clear this out every now and then' >> /etc/skel/.procmailrc
echo ':0' >> /etc/skel/.procmailrc
echo ' * ^X-Spam-Level: \*\*\*\*\*' >> /etc/skel/.procmailrc
echo 'maybe-spam/' >> /etc/skel/.procmailrc
echo '# otherwise, marginal spam goes here for revision' >> /etc/skel/.procmailrc
echo ':0' >> /etc/skel/.procmailrc
echo ' * ^X-Spam-Level: \*\*' >> /etc/skel/.procmailrc
echo 'spam/' >> /etc/skel/.procmailrc
# filtering scripts
echo '#!/bin/bash' > /usr/bin/filterspam
echo 'for d in /home/*/ ; do' >> /usr/bin/filterspam
echo ' USERNAME=$(echo "$d" | awk -F '"'"'/'"'"' '"'"'{print $3}'"'"')' >> /usr/bin/filterspam
echo ' if [[ $USERNAME != "git" && $USERNAME != "go" && $USERNAME != "gogs" && $USERNAME != "mirrors" && $USERNAME != "sync" && $USERNAME != "tahoelafs" ]]; then' >> /usr/bin/filterspam
echo ' MAILDIR=/home/$USERNAME/Maildir/.learn-spam' >> /usr/bin/filterspam
echo ' if [ ! -d "$MAILDIR" ]; then' >> /usr/bin/filterspam
echo ' exit' >> /usr/bin/filterspam
echo ' fi' >> /usr/bin/filterspam
echo ' for f in `ls $MAILDIR/cur`' >> /usr/bin/filterspam
echo ' do' >> /usr/bin/filterspam
echo ' spamc -L spam < "$MAILDIR/cur/$f" > /dev/null' >> /usr/bin/filterspam
echo ' rm "$MAILDIR/cur/$f"' >> /usr/bin/filterspam
echo ' done' >> /usr/bin/filterspam
echo ' for f in `ls $MAILDIR/new`' >> /usr/bin/filterspam
echo ' do' >> /usr/bin/filterspam
echo ' spamc -L spam < "$MAILDIR/new/$f" > /dev/null' >> /usr/bin/filterspam
echo ' rm "$MAILDIR/new/$f"' >> /usr/bin/filterspam
echo ' done' >> /usr/bin/filterspam
echo ' fi' >> /usr/bin/filterspam
echo 'done' >> /usr/bin/filterspam
echo 'exit 0' >> /usr/bin/filterspam
echo '#!/bin/bash' > /usr/bin/filterham
echo 'for d in /home/*/ ; do' >> /usr/bin/filterham
echo ' USERNAME=$(echo "$d" | awk -F '"'"'/'"'"' '"'"'{print $3}'"'"')' >> /usr/bin/filterham
echo ' if [[ $USERNAME != "git" && $USERNAME != "go" && $USERNAME != "gogs" && $USERNAME != "mirrors" && $USERNAME != "sync" && $USERNAME != "tahoelafs" ]]; then' >> /usr/bin/filterham
echo ' MAILDIR=/home/$USERNAME/Maildir/.learn-ham' >> /usr/bin/filterham
echo ' if [ ! -d "$MAILDIR" ]; then' >> /usr/bin/filterham
echo ' exit' >> /usr/bin/filterham
echo ' fi' >> /usr/bin/filterham
echo ' for f in `ls $MAILDIR/cur`' >> /usr/bin/filterham
echo ' do' >> /usr/bin/filterham
echo ' spamc -L ham < "$MAILDIR/cur/$f" > /dev/null' >> /usr/bin/filterham
echo ' rm "$MAILDIR/cur/$f"' >> /usr/bin/filterham
echo ' done' >> /usr/bin/filterham
echo ' for f in `ls $MAILDIR/new`' >> /usr/bin/filterham
echo ' do' >> /usr/bin/filterham
echo ' spamc -L ham < "$MAILDIR/new/$f" > /dev/null' >> /usr/bin/filterham
echo ' rm "$MAILDIR/new/$f"' >> /usr/bin/filterham
echo ' done' >> /usr/bin/filterham
echo ' fi' >> /usr/bin/filterham
echo 'done' >> /usr/bin/filterham
echo 'exit 0' >> /usr/bin/filterham
function_check cron_add_mins
cron_add_mins 3 '/usr/bin/timeout 120 /usr/bin/filterspam'
cron_add_mins 3 '/usr/bin/timeout 120 /usr/bin/filterham'
chmod 655 /usr/bin/filterspam /usr/bin/filterham
sed -i 's/# use_bayes 1/use_bayes 1/g' /etc/mail/spamassassin/local.cf
sed -i 's/# bayes_auto_learn 1/bayes_auto_learn 1/g' /etc/mail/spamassassin/local.cf
# user preferences
if [ ! -d /home/$MY_USERNAME/.spamassassin ]; then
mkdir /home/$MY_USERNAME/.spamassassin
echo $'# How many points before a mail is considered spam.' > /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# required_score 5' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# Whitelist and blacklist addresses are now file-glob-style patterns, so' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# "friend@somewhere.com", "*@isp.com", or "*.domain.net" will all work.' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# whitelist_from someone@somewhere.com' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# Add your own customised scores for some tests below. The default scores are' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# read from the installed spamassassin rules files, but you can override them' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# here. To see the list of tests and their default scores, go to' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# http://spamassassin.apache.org/tests.html .' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '#' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# score SYMBOLIC_TEST_NAME n.nn' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# Speakers of Asian languages, like Chinese, Japanese and Korean, will almost' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# definitely want to uncomment the following lines. They will switch off some' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# rules that detect 8-bit characters, which commonly trigger on mails using CJK' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# character sets, or that assume a western-style charset is in use. ' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# ' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# score HTML_COMMENT_8BITS 0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# score UPPERCASE_25_50 0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# score UPPERCASE_50_75 0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# score UPPERCASE_75_100 0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# score OBSCURED_EMAIL 0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# Speakers of any language that uses non-English, accented characters may wish' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# to uncomment the following lines. They turn off rules that fire on' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# misformatted messages generated by common mail apps in contravention of the' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo $'# email RFCs.' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '' >> /home/$MY_USERNAME/.spamassassin/user_prefs
echo '# score SUBJ_ILLEGAL_CHARS 0' >> /home/$MY_USERNAME/.spamassassin/user_prefs
fi
# this must be accessible by root
chown -R $MY_USERNAME:root /home/$MY_USERNAME/.spamassassin
systemctl start spamassassin
systemctl restart exim4
systemctl restart cron
mark_completed $FUNCNAME
}
function configure_imap {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
dpkg -P dovecot-imapd
dpkg -P dovecot-core
apt-get -yq install dovecot-imapd
if [ ! -d /etc/dovecot ]; then
echo $"ERROR: Dovecot does not appear to have installed. $CHECK_MESSAGE"
exit 48
fi
if [[ $ONION_ONLY == 'no' ]]; then
# obtain a cert for the default domain
if [[ "$(cert_exists ${DEFAULT_DOMAIN_NAME} pem)" == "0" ]]; then
echo $'Obtaining certificate for the main domain'
create_site_certificate ${DEFAULT_DOMAIN_NAME} 'yes'
fi
fi
if [[ "$(cert_exists ${DEFAULT_DOMAIN_NAME} pem)" == "0" ]]; then
if [[ "$(cert_exists dovecot)" == "0" ]]; then
${PROJECT_NAME}-addcert -h dovecot --dhkey $DH_KEYLENGTH
check_certificates dovecot
fi
fi
groupadd default
usermod -g default dovecot
chown root:default /etc/ssl/certs/dovecot.*
chown root:default /etc/ssl/private/dovecot.*
chown root:default /etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.*
chown root:default /etc/ssl/private/${DEFAULT_DOMAIN_NAME}.*
if [ ! -f /etc/dovecot/conf.d/10-ssl.conf ]; then
echo $'Unable to find /etc/dovecot/conf.d/10-ssl.conf'
exit 83629
fi
sed -i 's|#ssl =.*|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
sed -i 's|ssl =.*|ssl = required|g' /etc/dovecot/conf.d/10-ssl.conf
if [[ "$(cert_exists ${DEFAULT_DOMAIN_NAME} pem)" == "1" ]]; then
sed -i "s|#ssl_cert =.*|ssl_cert = </etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.pem|g" /etc/dovecot/conf.d/10-ssl.conf
sed -i "s|ssl_cert =.*|ssl_cert = </etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.pem|g" /etc/dovecot/conf.d/10-ssl.conf
else
sed -i "s|#ssl_cert =.*|ssl_cert = </etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.crt|g" /etc/dovecot/conf.d/10-ssl.conf
sed -i "s|ssl_cert =.*|ssl_cert = </etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.crt|g" /etc/dovecot/conf.d/10-ssl.conf
fi
sed -i "s|#ssl_key =.*|ssl_key = </etc/ssl/private/${DEFAULT_DOMAIN_NAME}.key|g" /etc/dovecot/conf.d/10-ssl.conf
sed -i "s|ssl_key =.*|ssl_key = </etc/ssl/private/${DEFAULT_DOMAIN_NAME}.key|g" /etc/dovecot/conf.d/10-ssl.conf
if [[ "$(cert_exists ${DEFAULT_DOMAIN_NAME})" == "1" ]]; then
sed -i "s|#ssl_dh_parameters_length.*|ssl_dh_parameters_length = ${DH_KEYLENGTH}|g" /etc/dovecot/conf.d/10-ssl.conf
fi
sed -i 's/#ssl_prefer_server_ciphers.*/ssl_prefer_server_ciphers = yes/g' /etc/dovecot/conf.d/10-ssl.conf
sed -i "s|#ssl_protocols =.*|ssl_protocols = '$SSL_PROTOCOLS'|g" /etc/dovecot/conf.d/10-ssl.conf
sed -i "s|ssl_protocols =.*|ssl_protocols = '$SSL_PROTOCOLS'|g" /etc/dovecot/conf.d/10-ssl.conf
echo "ssl_cipher_list = '$SSL_CIPHERS'" >> /etc/dovecot/conf.d/10-ssl.conf
if [ ! -f /etc/dovecot/conf.d/10-master.conf ]; then
echo $'Unable to find /etc/dovecot/conf.d/10-master.conf'
exit 49259
fi
sed -i 's/#process_limit =.*/process_limit = 100/g' /etc/dovecot/conf.d/10-master.conf
sed -i 's/#default_client_limit.*/default_client_limit = 100/g' /etc/dovecot/conf.d/10-master.conf
sed -i 's|#default_process_limit =.*|default_process_limit = 100|g' /etc/dovecot/conf.d/10-master.conf
if [ ! -f /etc/dovecot/conf.d/10-logging.conf ]; then
echo $'Unable to find /etc/dovecot/conf.d/10-logging.conf'
exit 48936
fi
sed -i 's/#auth_verbose.*/auth_verbose = yes/g' /etc/dovecot/conf.d/10-logging.conf
if [ ! -f /etc/dovecot/dovecot.conf ]; then
echo $'Unable to find /etc/dovecot/dovecot.conf'
exit 43890
fi
sed -i 's/#listen =.*/listen = */g' /etc/dovecot/dovecot.conf
if [ ! -f /etc/dovecot/conf.d/10-auth.conf ]; then
echo $'Unable to find /etc/dovecot/conf.d/10-auth.conf'
exit 843256
fi
sed -i 's/#disable_plaintext_auth =.*/disable_plaintext_auth = no/g' /etc/dovecot/conf.d/10-auth.conf
sed -i 's/auth_mechanisms =.*/auth_mechanisms = plain login/g' /etc/dovecot/conf.d/10-auth.conf
if [ ! -f /etc/dovecot/conf.d/10-mail.conf ]; then
echo $'Unable to find /etc/dovecot/conf.d/10-mail.conf'
exit 42036
fi
sed -i 's|mail_location =.*|mail_location = maildir:~/Maildir:LAYOUT=fs|g' /etc/dovecot/conf.d/10-mail.conf
# This long notify interval makes the system more suited for use with
# battery powered mobile devices
sed -i 's|#imap_idle_notify_interval =.*|imap_idle_notify_interval = 29|g' /etc/dovecot/conf.d/20-imap.conf
if [ -f /var/lib/dovecot/ssl-parameters.dat ]; then
rm /var/lib/dovecot/ssl-parameters.dat
fi
if [ -f /etc/systemd/system/sockets.target.wants/dovecot.socket ]; then
rm /etc/systemd/system/sockets.target.wants/dovecot.socket
fi
systemctl restart dovecot
mark_completed $FUNCNAME
}
function configure_imap_client_certs {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
# http://strange.systems/certificate-based-auth-with-dovecot-sendmail/
sed -i 's|#default_process_limit =.*|default_process_limit = 100|g' /etc/dovecot/conf.d/10-master.conf
sed -i 's/disable_plaintext_auth =.*/disable_plaintext_auth = yes/g' /etc/dovecot/conf.d/10-auth.conf
sed -i 's|#auth_ssl_require_client_cert =.*|auth_ssl_require_client_cert = yes|g' /etc/dovecot/conf.d/10-auth.conf
sed -i 's|#auth_ssl_username_from_cert =.*|auth_ssl_username_from_cert = yes|g' /etc/dovecot/conf.d/10-auth.conf
sed -i "s|#ssl_ca =.*|ssl_ca = /etc/ssl/certs/ca-$DEFAULT_DOMAIN_NAME.crt|g" /etc/dovecot/conf.d/10-ssl.conf
sed -i 's|#ssl_cert_username_field =.*|ssl_cert_username_field = commonName|g' /etc/dovecot/conf.d/10-ssl.conf
sed -i 's|#ssl_verify_client_cert =.*|ssl_verify_client_cert = yes|g' /etc/dovecot/conf.d/10-ssl.conf
if ! grep -q "passdb {" /etc/dovecot/conf.d/10-auth.conf; then
echo '' >> /etc/dovecot/conf.d/10-auth.conf
echo 'passdb {' >> /etc/dovecot/conf.d/10-auth.conf
echo ' driver = passwd-file' >> /etc/dovecot/conf.d/10-auth.conf
echo ' args = /etc/dovecot/passwd-file' >> /etc/dovecot/conf.d/10-auth.conf
echo ' deny = no' >> /etc/dovecot/conf.d/10-auth.conf
echo ' master = no' >> /etc/dovecot/conf.d/10-auth.conf
echo ' pass = no' >> /etc/dovecot/conf.d/10-auth.conf
echo '}' >> /etc/dovecot/conf.d/10-auth.conf
fi
if [[ $ONION_ONLY == "no" ]]; then
# make a CA cert
if [ ! -f /etc/ssl/private/ca-$DEFAULT_DOMAIN_NAME.key ]; then
if [[ $LETSENCRYPT_ENABLED != "yes" ]]; then
${PROJECT_NAME}-addcert -h $DEFAULT_DOMAIN_NAME --ca "" --dhkey $DH_KEYLENGTH
else
${PROJECT_NAME}-addcert -e $DEFAULT_DOMAIN_NAME -s $LETSENCRYPT_SERVER --ca "" --dhkey $DH_KEYLENGTH --email $MY_EMAIL_ADDRESS
fi
fi
fi
# CA configuration
echo '[ ca ]' > /etc/ssl/dovecot-ca.cnf
echo "default_ca = dovecot-ca" >> /etc/ssl/dovecot-ca.cnf
echo '' >> /etc/ssl/dovecot-ca.cnf
echo '[ crl_ext ]' >> /etc/ssl/dovecot-ca.cnf
echo 'authorityKeyIdentifier=keyid:always' >> /etc/ssl/dovecot-ca.cnf
echo '' >> /etc/ssl/dovecot-ca.cnf
echo '[ dovecot-ca ]' >> /etc/ssl/dovecot-ca.cnf
echo 'new_certs_dir = .' >> /etc/ssl/dovecot-ca.cnf
echo 'unique_subject = no' >> /etc/ssl/dovecot-ca.cnf
echo "certificate = /etc/ssl/certs/ca-$DEFAULT_DOMAIN_NAME.crt" >> /etc/ssl/dovecot-ca.cnf
echo 'database = ssldb' >> /etc/ssl/dovecot-ca.cnf
echo "private_key = /etc/ssl/private/ca-$DEFAULT_DOMAIN_NAME.key" >> /etc/ssl/dovecot-ca.cnf
echo 'serial = sslserial' >> /etc/ssl/dovecot-ca.cnf
echo 'default_days = 3650' >> /etc/ssl/dovecot-ca.cnf
echo 'default_md = sha256' >> /etc/ssl/dovecot-ca.cnf
echo 'default_bits = 4096' >> /etc/ssl/dovecot-ca.cnf
echo 'policy = dovecot-ca_policy' >> /etc/ssl/dovecot-ca.cnf
echo 'x509_extensions = dovecot-ca_extensions' >> /etc/ssl/dovecot-ca.cnf
echo '' >> /etc/ssl/dovecot-ca.cnf
echo '[ dovecot-ca_policy ]' >> /etc/ssl/dovecot-ca.cnf
echo 'commonName = supplied' >> /etc/ssl/dovecot-ca.cnf
echo 'stateOrProvinceName = supplied' >> /etc/ssl/dovecot-ca.cnf
echo 'countryName = supplied' >> /etc/ssl/dovecot-ca.cnf
echo 'emailAddress = optional' >> /etc/ssl/dovecot-ca.cnf
echo 'organizationName = supplied' >> /etc/ssl/dovecot-ca.cnf
echo 'organizationalUnitName = optional' >> /etc/ssl/dovecot-ca.cnf
echo '' >> /etc/ssl/dovecot-ca.cnf
echo '[ dovecot-ca_extensions ]' >> /etc/ssl/dovecot-ca.cnf
echo 'basicConstraints = CA:false' >> /etc/ssl/dovecot-ca.cnf
echo 'subjectKeyIdentifier = hash' >> /etc/ssl/dovecot-ca.cnf
echo 'authorityKeyIdentifier = keyid:always' >> /etc/ssl/dovecot-ca.cnf
echo 'keyUsage = digitalSignature,keyEncipherment' >> /etc/ssl/dovecot-ca.cnf
echo 'extendedKeyUsage = clientAuth' >> /etc/ssl/dovecot-ca.cnf
if [ -f /etc/ssl/ssldb ]; then
rm /etc/ssl/ssldb
fi
if [ -f /etc/ssl/sslserial ]; then
rm /etc/ssl/sslserial
fi
touch /etc/ssl/ssldb
echo 0001 > /etc/ssl/sslserial
#${PROJECT_NAME}-clientcert -u $MY_USERNAME
systemctl restart dovecot
mark_completed $FUNCNAME
}
function create_gpg_subkey {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
apt-get -yq install gnupg
GPG_KEY_USAGE=$1
if [[ $GPG_KEY_USAGE != "sign" && $GPG_KEY_USAGE != "auth" && $GPG_KEY_USAGE != "encrypt" ]]; then
echo $"Unknown subkey usage: $GPG_KEY_USAGE"
echo $'Available types: sign|auth|encrypt'
exit 14783
fi
KEYGRIP=$(gpg --fingerprint --fingerprint $MY_EMAIL_ADDRESS | grep fingerprint | tail -1 | cut -d= -f2 | sed -e 's/ //g')
# Generate a GPG subkey
# Here a 2048bit length is used to be compatible with yubikey
echo 'Key-Type: 1' > /home/$MY_USERNAME/gpg-genkey.conf
echo "Key-Grip: $KEYGRIP" > /home/$MY_USERNAME/gpg-genkey.conf
echo 'Subkey-Type: 1' >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Subkey-Length: 2048' >> /home/$MY_USERNAME/gpg-genkey.conf
echo "subkey-Usage: $GPG_KEY_USAGE" > /home/$MY_USERNAME/gpg-genkey.conf
echo "Name-Real: $MY_NAME" >> /home/$MY_USERNAME/gpg-genkey.conf
echo "Name-Email: $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/gpg-genkey.conf
echo "Name-Comment: $GPG_KEY_USAGE" >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Expire-Date: 0' >> /home/$MY_USERNAME/gpg-genkey.conf
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/gpg-genkey.conf
su -c "gpg --batch --gen-key /home/$MY_USERNAME/gpg-genkey.conf" - $MY_USERNAME
shred -zu /home/$MY_USERNAME/gpg-genkey.conf
MY_GPG_SUBKEY_ID=$(su -c "gpg --list-keys $MY_EMAIL_ADDRESS | grep 'pub '" - $MY_USERNAME | awk -F ' ' '{print $2}' | awk -F '/' '{print $2}')
mark_completed $FUNCNAME
}
function gpg_key_exists {
key_owner_username=$1
key_search_text=$2
if [[ $key_owner_username != "root" ]]; then
KEY_EXISTS=$(su -c "gpg --list-keys \"${key_search_text}\"" - $key_owner_username)
else
KEY_EXISTS=$(gpg --list-keys "${key_search_text}")
fi
if [ ! "$KEY_EXISTS" ]; then
echo "no"
return
fi
if [ "$KEY_EXISTS" == *"error"* ]; then
echo "no"
return
fi
echo "yes"
}
function gpg_pubkey_from_email {
key_owner_username=$1
key_email_address=$2
key_id=
if [[ $key_owner_username != "root" ]]; then
key_id=$(su -c "gpg --list-keys $key_email_address | grep 'pub '" - $key_owner_username | awk -F ' ' '{print $2}' | awk -F '/' '{print $2}')
else
key_id=$(gpg --list-keys $key_email_address | grep 'pub ' | awk -F ' ' '{print $2}' | awk -F '/' '{print $2}')
fi
echo $key_id
}
function configure_gpg {
if [ ! -d /etc/exim4 ]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
apt-get -yq install gnupg
gpg_dir=/home/$MY_USERNAME/.gnupg
# if gpg keys directory was previously imported from usb
if [[ $GPG_KEYS_IMPORTED == "yes" && -d $gpg_dir ]]; then
echo $'GPG keys were imported'
sed -i "s|keyserver hkp://keys.gnupg.net|keyserver $GPG_KEYSERVER|g" $gpg_dir/gpg.conf
MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
echo $'GPG public key ID could not be obtained'
fi
chown -R $MY_USERNAME:$MY_USERNAME $gpg_dir
chmod 700 $gpg_dir
chmod 600 $gpg_dir/*
mark_completed $FUNCNAME
return
fi
if [ ! -d $gpg_dir ]; then
mkdir $gpg_dir
echo "keyserver $GPG_KEYSERVER" >> $gpg_dir/gpg.conf
echo 'keyserver-options auto-key-retrieve' >> $gpg_dir/gpg.conf
fi
sed -i "s|keyserver hkp://keys.gnupg.net|keyserver $GPG_KEYSERVER|g" $gpg_dir/gpg.conf
if ! grep -q "# default preferences" $gpg_dir/gpg.conf; then
echo '' >> $gpg_dir/gpg.conf
echo '# default preferences' >> $gpg_dir/gpg.conf
echo 'personal-digest-preferences SHA256' >> $gpg_dir/gpg.conf
echo 'cert-digest-algo SHA256' >> $gpg_dir/gpg.conf
echo 'default-preference-list SHA512 SHA384 SHA256 SHA224 AES256 AES192 AES CAST5 ZLIB BZIP2 ZIP Uncompressed' >> $gpg_dir/gpg.conf
fi
chown -R $MY_USERNAME:$MY_USERNAME $gpg_dir
chmod 700 $gpg_dir
chmod 600 $gpg_dir/*
if [[ $MY_GPG_PUBLIC_KEY && $MY_GPG_PRIVATE_KEY ]]; then
echo $'Importing GPG keys from file'
echo $"Public key: $MY_GPG_PUBLIC_KEY"
echo $"Private key: $MY_GPG_PRIVATE_KEY"
# use your existing GPG keys which were exported
if [ ! -f $MY_GPG_PUBLIC_KEY ]; then
echo $"GPG public key file $MY_GPG_PUBLIC_KEY was not found"
exit 2483
fi
if [ ! -f $MY_GPG_PRIVATE_KEY ]; then
echo $"GPG private key file $MY_GPG_PRIVATE_KEY was not found"
exit 5383
fi
su -c "gpg --import $MY_GPG_PUBLIC_KEY" - $MY_USERNAME
su -c "gpg --allow-secret-key-import --import $MY_GPG_PRIVATE_KEY" - $MY_USERNAME
KEY_EXISTS=$(gpg_key_exists "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
if [[ $KEY_EXISTS == "no" ]]; then
echo $"The GPG key for $MY_EMAIL_ADDRESS could not be imported"
exit 13821
fi
# for security ensure that the private key file doesn't linger around
shred -zu $MY_GPG_PRIVATE_KEY
MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
echo $'GPG public key ID could not be obtained'
fi
else
# Generate a GPG key
echo 'Key-Type: 1' > /home/$MY_USERNAME/gpg-genkey.conf
echo 'Key-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Subkey-Type: 1' >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Subkey-Length: 4096' >> /home/$MY_USERNAME/gpg-genkey.conf
echo "Name-Real: $MY_NAME" >> /home/$MY_USERNAME/gpg-genkey.conf
echo "Name-Email: $MY_EMAIL_ADDRESS" >> /home/$MY_USERNAME/gpg-genkey.conf
echo 'Expire-Date: 0' >> /home/$MY_USERNAME/gpg-genkey.conf
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/gpg-genkey.conf
echo $'Generating a new GPG key'
su -c "gpg --batch --gen-key /home/$MY_USERNAME/gpg-genkey.conf" - $MY_USERNAME
KEY_EXISTS=$(gpg_key_exists "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
if [[ $KEY_EXISTS == "no" ]]; then
echo $"A GPG key for $MY_EMAIL_ADDRESS could not be created"
exit 6362
fi
shred -zu /home/$MY_USERNAME/gpg-genkey.conf
MY_GPG_PUBLIC_KEY_ID=$(gpg_pubkey_from_email "$MY_USERNAME" "$MY_EMAIL_ADDRESS")
if [ ${#MY_GPG_PUBLIC_KEY_ID} -lt 4 ]; then
echo $'GPG public key ID could not be obtained'
fi
MY_GPG_PUBLIC_KEY=/tmp/public_key.gpg
su -c "gpg --output $MY_GPG_PUBLIC_KEY --armor --export $MY_GPG_PUBLIC_KEY_ID" - $MY_USERNAME
if grep -q "install_email" $COMPLETION_FILE; then
if ! grep -q $"Change your GPG password" /home/$MY_USERNAME/README; then
echo '' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo $'Change your GPG password' >> /home/$MY_USERNAME/README
echo '========================' >> /home/$MY_USERNAME/README
echo $"It's very important to add a password to your GPG key so that" >> /home/$MY_USERNAME/README
echo $"if anyone does get access to your email they still won't be able" >> /home/$MY_USERNAME/README
echo $'to read them without knowning the GPG password.' >> /home/$MY_USERNAME/README
echo $'You can change the it with:' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo " gpg --edit-key $MY_GPG_PUBLIC_KEY_ID" >> /home/$MY_USERNAME/README
echo ' passwd' >> /home/$MY_USERNAME/README
echo ' save' >> /home/$MY_USERNAME/README
echo ' quit' >> /home/$MY_USERNAME/README
fi
if ! grep -q $"Publish your GPG public key" /home/$MY_USERNAME/README; then
echo '' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo $'Publish your GPG public key' >> /home/$MY_USERNAME/README
echo '===========================' >> /home/$MY_USERNAME/README
echo $'So that others can send emails to you securely you should' >> /home/$MY_USERNAME/README
echo $'publish your GPG public key with the command:' >> /home/$MY_USERNAME/README
echo '' >> /home/$MY_USERNAME/README
echo " gpg --send-keys $MY_GPG_PUBLIC_KEY_ID" >> /home/$MY_USERNAME/README
fi
chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/README
chmod 600 /home/$MY_USERNAME/README
fi
fi
mark_completed $FUNCNAME
}
function refresh_gpg_keys {
REFRESH_GPG_KEYS_SCRIPT=/usr/bin/update-gpg-keys
echo '#!/bin/bash' > $REFRESH_GPG_KEYS_SCRIPT
echo "if [ -f /usr/local/bin/${PROJECT_NAME}-sec ]; then" >> $REFRESH_GPG_KEYS_SCRIPT
echo " /usr/bin/timeout 600 /usr/local/bin/${PROJECT_NAME}-sec --refresh yes" >> $REFRESH_GPG_KEYS_SCRIPT
echo 'else' >> $REFRESH_GPG_KEYS_SCRIPT
echo " /usr/bin/timeout 600 /usr/bin/${PROJECT_NAME}-sec --refresh yes" >> $REFRESH_GPG_KEYS_SCRIPT
echo 'fi' >> $REFRESH_GPG_KEYS_SCRIPT
chmod +x $REFRESH_GPG_KEYS_SCRIPT
if grep -q "${PROJECT_NAME}-sec" /etc/crontab; then
sed -i "/${PROJECT_NAME}-sec /d" /etc/crontab
fi
if ! grep -q "$REFRESH_GPG_KEYS_SCRIPT" /etc/crontab; then
GPG_REFRESH_TIME=$(( RANDOM % 60 ))
echo "$GPG_REFRESH_TIME */$REFRESH_GPG_KEYS_HOURS * * * root cronic $REFRESH_GPG_KEYS_SCRIPT" >> /etc/crontab
systemctl restart cron
else
sed -i "s|root $REFRESH_GPG_KEYS_SCRIPT.*|root cronic $REFRESH_GPG_KEYS_SCRIPT|g" /etc/crontab
fi
}
function install_email {
if [[ $SYSTEM_TYPE == "mesh"* ]]; then
return
fi
if [[ $(is_completed $FUNCNAME) == "1" ]]; then
return
fi
install_email_basic
#install_email_with_tor
mark_completed $FUNCNAME
}
# NOTE: deliberately no exit 0