mailinabox/setup/webmail.sh

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#!/bin/bash
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# Webmail with Roundcube
# ----------------------
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source setup/functions.sh # load our functions
source /etc/mailinabox.conf # load global vars
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# ### Installing Roundcube
# We install Roundcube from sources, rather than from Ubuntu, because:
#
# 1. Ubuntu's `roundcube-core` package has dependencies on Apache & MySQL, which we don't want.
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#
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# 2. The Roundcube shipped with Ubuntu is consistently out of date.
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#
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# 3. It's packaged incorrectly --- it seems to be missing a directory of files.
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#
# So we'll use apt-get to manually install the dependencies of roundcube that we know we need,
# and then we'll manually install roundcube from source.
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# These dependencies are from `apt-cache showpkg roundcube-core`.
echo "Installing Roundcube (webmail)..."
apt_install \
dbconfig-common \
php"${PHP_VER}"-cli php"${PHP_VER}"-sqlite3 php"${PHP_VER}"-intl php"${PHP_VER}"-common php"${PHP_VER}"-curl php"${PHP_VER}"-imap \
php"${PHP_VER}"-gd php"${PHP_VER}"-pspell php"${PHP_VER}"-mbstring libjs-jquery libjs-jquery-mousewheel libmagic1 \
sqlite3
# Install Roundcube from source if it is not already present or if it is out of date.
# Combine the Roundcube version number with the commit hash of plugins to track
# whether we have the latest version of everything.
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# For the latest versions, see:
# https://github.com/roundcube/roundcubemail/releases
# https://github.com/mfreiholz/persistent_login/commits/master
# https://github.com/stremlau/html5_notifier/commits/master
# https://github.com/mstilkerich/rcmcarddav/releases
# The easiest way to get the package hashes is to run this script and get the hash from
# the error message.
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VERSION=1.6.6
HASH=7705d2736890c49e7ae3ac75e3ae00ba56187056
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PERSISTENT_LOGIN_VERSION=bde7b6840c7d91de627ea14e81cf4133cbb3c07a # version 5.3
HTML5_NOTIFIER_VERSION=68d9ca194212e15b3c7225eb6085dbcf02fd13d7 # version 0.6.4+
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CARDDAV_VERSION=4.4.3
CARDDAV_HASH=74f8ba7aee33e78beb9de07f7f44b81f6071b644
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UPDATE_KEY=$VERSION:$PERSISTENT_LOGIN_VERSION:$HTML5_NOTIFIER_VERSION:$CARDDAV_VERSION
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# paths that are often reused.
RCM_DIR=/usr/local/lib/roundcubemail
RCM_PLUGIN_DIR=${RCM_DIR}/plugins
RCM_CONFIG=${RCM_DIR}/config/config.inc.php
needs_update=0 #NODOC
if [ ! -f /usr/local/lib/roundcubemail/version ]; then
# not installed yet #NODOC
needs_update=1 #NODOC
elif [[ "$UPDATE_KEY" != $(cat /usr/local/lib/roundcubemail/version) ]]; then
# checks if the version is what we want
needs_update=1 #NODOC
fi
if [ $needs_update == 1 ]; then
# if upgrading from 1.3.x, clear the temp_dir
if [ -f /usr/local/lib/roundcubemail/version ]; then
if [ "$(cat /usr/local/lib/roundcubemail/version | cut -c1-3)" == '1.3' ]; then
find /var/tmp/roundcubemail/ -type f ! -name 'RCMTEMP*' -delete
fi
fi
# install roundcube
wget_verify \
https://github.com/roundcube/roundcubemail/releases/download/$VERSION/roundcubemail-$VERSION-complete.tar.gz \
$HASH \
/tmp/roundcube.tgz
tar -C /usr/local/lib --no-same-owner -zxf /tmp/roundcube.tgz
rm -rf /usr/local/lib/roundcubemail
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mv /usr/local/lib/roundcubemail-$VERSION/ $RCM_DIR
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rm -f /tmp/roundcube.tgz
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# install roundcube persistent_login plugin
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git_clone https://github.com/mfreiholz/Roundcube-Persistent-Login-Plugin.git $PERSISTENT_LOGIN_VERSION '' ${RCM_PLUGIN_DIR}/persistent_login
# install roundcube html5_notifier plugin
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git_clone https://github.com/kitist/html5_notifier.git $HTML5_NOTIFIER_VERSION '' ${RCM_PLUGIN_DIR}/html5_notifier
# download and verify the full release of the carddav plugin
wget_verify \
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https://github.com/mstilkerich/rcmcarddav/releases/download/v${CARDDAV_VERSION}/carddav-v${CARDDAV_VERSION}.tar.gz \
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$CARDDAV_HASH \
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/tmp/carddav.tar.gz
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# unzip and cleanup
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tar -C ${RCM_PLUGIN_DIR} -zxf /tmp/carddav.tar.gz
rm -f /tmp/carddav.tar.gz
# record the version we've installed
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echo $UPDATE_KEY > ${RCM_DIR}/version
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fi
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# ### Configuring Roundcube
# Generate a secret key of PHP-string-safe characters appropriate
# for the cipher algorithm selected below.
SECRET_KEY=$(dd if=/dev/urandom bs=1 count=32 2>/dev/null | base64 | sed s/=//g)
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# Create a configuration file.
#
# For security, temp and log files are not stored in the default locations
# which are inside the roundcube sources directory. We put them instead
# in normal places.
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cat > $RCM_CONFIG <<EOF;
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<?php
/*
* Do not edit. Written by Mail-in-a-Box. Regenerated on updates.
*/
\$config = array();
\$config['log_dir'] = '/var/log/roundcubemail/';
\$config['temp_dir'] = '/var/tmp/roundcubemail/';
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\$config['db_dsnw'] = 'sqlite:///$STORAGE_ROOT/mail/roundcube/roundcube.sqlite?mode=0640';
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\$config['imap_host'] = 'ssl://localhost:993';
\$config['imap_conn_options'] = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
),
);
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\$config['imap_timeout'] = 15;
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\$config['smtp_host'] = 'tls://127.0.0.1';
\$config['smtp_conn_options'] = array(
'ssl' => array(
'verify_peer' => false,
'verify_peer_name' => false,
),
);
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\$config['support_url'] = 'https://mailinabox.email/';
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\$config['product_name'] = '$PRIMARY_HOSTNAME Webmail';
\$config['cipher_method'] = 'AES-256-CBC'; # persistent login cookie and potentially other things
\$config['des_key'] = '$SECRET_KEY'; # 37 characters -> ~256 bits for AES-256, see above
\$config['plugins'] = array('html5_notifier', 'archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'persistent_login', 'carddav');
\$config['skin'] = 'elastic';
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\$config['login_autocomplete'] = 2;
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\$config['login_username_filter'] = 'email';
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\$config['password_charset'] = 'UTF-8';
\$config['junk_mbox'] = 'Spam';
/* ensure roudcube session id's aren't leaked to other parts of the server */
\$config['session_path'] = '/mail/';
/* prevent CSRF, requires php 7.3+ */
\$config['session_samesite'] = 'Strict';
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?>
EOF
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# Configure CardDav
cat > ${RCM_PLUGIN_DIR}/carddav/config.inc.php <<EOF;
<?php
/* Do not edit. Written by Mail-in-a-Box. Regenerated on updates. */
\$prefs['_GLOBAL']['hide_preferences'] = true;
\$prefs['_GLOBAL']['suppress_version_warning'] = true;
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\$prefs['ownCloud'] = array(
'name' => 'ownCloud',
'username' => '%u', // login username
'password' => '%p', // login password
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'url' => 'https://${PRIMARY_HOSTNAME}/cloud/remote.php/dav/addressbooks/users/%u/contacts/',
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'active' => true,
'readonly' => false,
'refresh_time' => '02:00:00',
'fixed' => array('username','password'),
'preemptive_auth' => '1',
'hide' => false,
);
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?>
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EOF
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# Create writable directories.
mkdir -p /var/log/roundcubemail /var/tmp/roundcubemail "$STORAGE_ROOT/mail/roundcube"
chown -R www-data:www-data /var/log/roundcubemail /var/tmp/roundcubemail "$STORAGE_ROOT/mail/roundcube"
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# Ensure the log file monitored by fail2ban exists, or else fail2ban can't start.
sudo -u www-data touch /var/log/roundcubemail/errors.log
# Password changing plugin settings
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# The config comes empty by default, so we need the settings
# we're not planning to change in config.inc.dist...
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cp ${RCM_PLUGIN_DIR}/password/config.inc.php.dist \
${RCM_PLUGIN_DIR}/password/config.inc.php
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tools/editconf.py ${RCM_PLUGIN_DIR}/password/config.inc.php \
"\$config['password_minimum_length']=8;" \
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"\$config['password_db_dsn']='sqlite:///$STORAGE_ROOT/mail/users.sqlite';" \
"\$config['password_query']='UPDATE users SET password=%P WHERE email=%u';" \
"\$config['password_algorithm']='sha512-crypt';" \
"\$config['password_algorithm_prefix']='{SHA512-CRYPT}';"
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# so PHP can use doveadm, for the password changing plugin
usermod -a -G dovecot www-data
# set permissions so that PHP can use users.sqlite
# could use dovecot instead of www-data, but not sure it matters
chown root:www-data "$STORAGE_ROOT/mail"
chmod 775 "$STORAGE_ROOT/mail"
chown root:www-data "$STORAGE_ROOT/mail/users.sqlite"
chmod 664 "$STORAGE_ROOT/mail/users.sqlite"
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# Fix Carddav permissions:
chown -f -R root:www-data ${RCM_PLUGIN_DIR}/carddav
# root:www-data need all permissions, others only read
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chmod -R 774 ${RCM_PLUGIN_DIR}/carddav
# Run Roundcube database migration script (database is created if it does not exist)
php"$PHP_VER" ${RCM_DIR}/bin/updatedb.sh --dir ${RCM_DIR}/SQL --package roundcube
chown www-data:www-data "$STORAGE_ROOT/mail/roundcube/roundcube.sqlite"
chmod 664 "$STORAGE_ROOT/mail/roundcube/roundcube.sqlite"
# Patch the Roundcube code to eliminate an issue that causes postfix to reject our sqlite
# user database (see https://github.com/mail-in-a-box/mailinabox/issues/2185)
sed -i.miabold 's/^[^#]\+.\+PRAGMA journal_mode = WAL.\+$/#&/' \
/usr/local/lib/roundcubemail/program/lib/Roundcube/db/sqlite.php
# Because Roundcube wants to set the PRAGMA we just deleted from the source, we apply it here
# to the roundcube database (see https://github.com/roundcube/roundcubemail/issues/8035)
# Database should exist, created by migration script
hide_output sqlite3 "$STORAGE_ROOT/mail/roundcube/roundcube.sqlite" 'PRAGMA journal_mode=WAL;'
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# Enable PHP modules.
phpenmod -v "$PHP_VER" imap
restart_service php"$PHP_VER"-fpm