581 lines
18 KiB
Bash
Executable File
581 lines
18 KiB
Bash
Executable File
#!/bin/bash
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#
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# .---. . .
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# | | |
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# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
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# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
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# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
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#
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# Freedom in the Cloud
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#
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# Onion functions
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#
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# License
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# =======
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#
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# Copyright (C) 2014-2018 Bob Mottram <bob@freedombone.net>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# The maximum amount of traffic per day in gigabytes
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TOR_MAX_TRAFFIC_PER_MONTH_GB=10
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USE_V2_ONION_ADDRESS=
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HIDDEN_SERVICE_PATH='/var/lib/tor/hidden_service_'
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function add_email_hostname {
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extra_email_hostname="$1"
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email_hostnames=$(cat /etc/exim4/update-exim4.conf.conf | grep "dc_other_hostnames" | awk -F "'" '{print $2}')
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if [[ "$email_hostnames" != *"$extra_email_hostname"* ]]; then
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sed -i "s|dc_other_hostnames=.*|dc_other_hostnames='$emailhostnames;extra_email_hostname'|g" /etc/exim4/update-exim4.conf.conf
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update-exim4.conf
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dpkg-reconfigure --frontend noninteractive exim4-config
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systemctl restart saslauthd
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fi
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}
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function onion_update {
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# update so that new onion services appear
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systemctl restart tor
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}
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function wait_for_onion_service_base {
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onion_service_name="$1"
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sleep_ctr=0
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while [ ! -f ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname ]; do
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sleep 1
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sleep_ctr=$((sleep_ctr + 1))
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if [ $sleep_ctr -gt 10 ]; then
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break
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fi
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done
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}
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function wait_for_onion_service {
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onion_service_name="$1"
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wait_for_onion_service_base ${onion_service_name}
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if [ ! -f ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname ]; then
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# try a second time
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onion_update
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wait_for_onion_service_base ${onion_service_name}
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fi
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sync
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}
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function remove_onion_service {
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onion_service_name="$1"
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onion_service_port_to=$2
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nick="$3"
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if [ ${#nick} -gt 0 ]; then
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sed -i "/stealth ${nick}/d" /etc/tor/torrc
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fi
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sed -i "/hidden_service_${onion_service_name}/,+1 d" /etc/tor/torrc
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sed -i "/hidden_service_${onion_service_name}_mobile/,+1 d" /etc/tor/torrc
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sed -i "/127.0.0.1:${onion_service_port_to}/d" /etc/tor/torrc
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if [ $3 ]; then
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sed -i "/127.0.0.1:${3}/d" /etc/tor/torrc
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if [ $4 ]; then
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sed -i "/127.0.0.1:${4}/d" /etc/tor/torrc
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if [ $5 ]; then
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sed -i "/127.0.0.1:${5}/d" /etc/tor/torrc
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fi
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fi
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fi
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if [ -d ${HIDDEN_SERVICE_PATH}${onion_service_name} ]; then
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shred -zu ${HIDDEN_SERVICE_PATH}${onion_service_name}/*
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rm -rf ${HIDDEN_SERVICE_PATH}${onion_service_name}
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fi
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if [ -d ${HIDDEN_SERVICE_PATH}${onion_service_name}_mobile ]; then
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shred -zu ${HIDDEN_SERVICE_PATH}${onion_service_name}_mobile/*
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rm -rf ${HIDDEN_SERVICE_PATH}${onion_service_name}_mobile
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fi
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remove_completion_param "${onion_service_name} onion domain"
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onion_update
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}
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function add_onion_service {
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onion_service_name="$1"
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onion_service_port_from=$2
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onion_service_port_to=$3
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onion_stealth_name="$4"
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if [ -f ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname ]; then
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echo $(cat ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname)
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USE_V2_ONION_ADDRESS=
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return
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fi
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if [ ! -d /var/lib/tor ]; then
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echo $"No Tor installation found. ${onion_service_name} onion site cannot be configured."
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USE_V2_ONION_ADDRESS=
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exit 877367
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fi
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if ! grep -q "hidden_service_${onion_service_name}" /etc/tor/torrc; then
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echo "HiddenServiceDir ${HIDDEN_SERVICE_PATH}${onion_service_name}/" >> /etc/tor/torrc
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if [ ! $USE_V2_ONION_ADDRESS ]; then
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echo 'HiddenServiceVersion 3' >> /etc/tor/torrc
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else
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echo 'HiddenServiceVersion 2' >> /etc/tor/torrc
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fi
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echo "HiddenServicePort ${onion_service_port_from} 127.0.0.1:${onion_service_port_to}" >> /etc/tor/torrc
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if [ ${#onion_stealth_name} -gt 0 ]; then
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echo "HiddenServiceAuthorizeClient stealth ${onion_stealth_name}" >> /etc/tor/torrc
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fi
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fi
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USE_V2_ONION_ADDRESS=
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onion_update
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function_check wait_for_onion_service
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wait_for_onion_service ${onion_service_name}
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if [ ! -f ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname ]; then
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ls -lh ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname
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echo $"${onion_service_name} onion site hostname not found"
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exit 763624
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fi
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onion_address=$(cat ${HIDDEN_SERVICE_PATH}${onion_service_name}/hostname)
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# Record the domain in the completion file
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set_completion_param "${onion_service_name} onion domain" "${onion_address}"
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echo $onion_address
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}
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function set_default_onion_domains {
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# If sites are only visible via Tor then for installation
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# purposes assign them some default domain names
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if [[ $ONION_ONLY == "no" ]]; then
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return
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fi
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POSTACTIV_DOMAIN_NAME='postactiv.local'
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GNUSOCIAL_DOMAIN_NAME='gnusocial.local'
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HTMLY_DOMAIN_NAME='htmly.local'
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GHOST_DOMAIN_NAME='ghost.local'
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DOKUWIKI_DOMAIN_NAME='dokuwiki.local'
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DEFAULT_DOMAIN_NAME="${LOCAL_NAME}.local"
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GIT_DOMAIN_NAME='gogs.local'
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}
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function create_avahi_onion_domains {
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if [[ $SYSTEM_TYPE == "mesh"* ]]; then
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return
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fi
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if [ ! -d /etc/avahi/services ]; then
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return
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fi
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if [ $GNUSOCIAL_DOMAIN_NAME ]; then
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function_check create_avahi_service
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create_avahi_service gnusocial http tcp $GNUSOCIAL_ONION_PORT
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fi
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if [ $HTMLY_DOMAIN_NAME ]; then
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function_check create_avahi_service
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create_avahi_service blog http tcp $HTMLY_ONION_PORT
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fi
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if [ $GIT_DOMAIN_NAME ]; then
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function_check create_avahi_service
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create_avahi_service git http tcp $GIT_ONION_PORT
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fi
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if [ $DOKUWIKI_DOMAIN_NAME ]; then
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function_check create_avahi_service
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create_avahi_service dokuwiki http tcp $DOKUWIKI_ONION_PORT
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fi
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}
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function allow_ssh_to_onion_address {
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if [[ $SYSTEM_TYPE == "mesh"* ]]; then
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return
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fi
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if [ ! -d /home/$MY_USERNAME/.ssh ]; then
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mkdir /home/$MY_USERNAME/.ssh
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fi
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if [ ! -d /etc/tor ]; then
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echo $'Tor not found when updating ssh'
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exit 528257
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fi
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if ! grep -q "onion" /home/$MY_USERNAME/.ssh/config; then
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echo 'Host *.onion' >> /home/$MY_USERNAME/.ssh/config
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echo 'ProxyCommand connect -R remote -5 -S 127.0.0.1:9050 %h %p' >> /home/$MY_USERNAME/.ssh/config
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fi
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}
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function enable_ssh_via_onion {
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if [[ $SYSTEM_TYPE == "mesh"* ]]; then
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return
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fi
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if [[ $(is_completed "${FUNCNAME[0]}") == "1" ]]; then
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return
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fi
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apt-get -yq install tor connect-proxy
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if ! grep -q 'Host *.onion' /home/$MY_USERNAME/.ssh/config; then
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if [ ! -d /home/$MY_USERNAME/.ssh ]; then
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mkdir /home/$MY_USERNAME/.ssh
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fi
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echo 'Host *.onion' >> /home/$MY_USERNAME/.ssh/config
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echo 'ProxyCommand connect -R remote -5 -S 127.0.0.1:9050 %h %p' >> /home/$MY_USERNAME/.ssh/config
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chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.ssh
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chown $MY_USERNAME:$MY_USERNAME /home/$MY_USERNAME/.ssh/config
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fi
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if ! grep -q 'Host *.onion' /root/.ssh/config; then
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if [ ! -d /root/.ssh ]; then
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mkdir /root/.ssh
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fi
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echo 'Host *.onion' >> /root/.ssh/config
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echo 'ProxyCommand connect -R remote -5 -S 127.0.0.1:9050 %h %p' >> /root/.ssh/config
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fi
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if ! grep -q 'Host *.onion' /etc/skel/.ssh/config; then
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if [ ! -d /etc/skel/.ssh ]; then
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mkdir /etc/skel/.ssh
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fi
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echo 'Host *.onion' >> /etc/skel/.ssh/config
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echo 'ProxyCommand connect -R remote -5 -S 127.0.0.1:9050 %h %p' >> /etc/skel/.ssh/config
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fi
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mark_completed "${FUNCNAME[0]}"
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}
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function configure_ssh_onion {
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if [[ $(is_completed "${FUNCNAME[0]}") == "1" ]]; then
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return
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fi
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if [[ $SYSTEM_TYPE == "mesh"* ]]; then
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return
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fi
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SSH_ONION_HOSTNAME=$(add_onion_service ssh ${SSH_PORT} ${SSH_PORT})
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if [[ "$SSH_ONION_HOSTNAME" != *'.onion' ]]; then
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echo $'ssh onion site not generated'
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exit 624128
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fi
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set_completion_param "ssh onion domain" "${SSH_ONION_HOSTNAME}"
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add_email_hostname "${SSH_ONION_HOSTNAME}"
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mark_completed "${FUNCNAME[0]}"
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}
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function install_tor {
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if [[ $SYSTEM_TYPE == "mesh*" ]]; then
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return
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fi
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if [[ $(is_completed "${FUNCNAME[0]}") == "1" ]]; then
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return
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fi
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apt-get -yq -t stretch-backports install tor
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if [ ! -f /etc/tor/torrc ]; then
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echo 'Tor failed to install'
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exit 38259
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fi
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# For torify
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apt-get -yq install torsocks
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# turn off logging
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sed -i 's|#Log notice file.*|Log notice file /dev/null|g' /etc/tor/torrc
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sed -i 's|Log notice file.*|Log notice file /dev/null|g' /etc/tor/torrc
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# Restrict traffic
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sed -i "s|#AccountingMax.*|AccountingMax $TOR_MAX_TRAFFIC_PER_MONTH_GB GBytes|g" /etc/tor/torrc
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sed -i "s|AccountingMax.*|AccountingMax $TOR_MAX_TRAFFIC_PER_MONTH_GB GBytes|g" /etc/tor/torrc
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mark_completed "${FUNCNAME[0]}"
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}
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function resolve_dns_via_tor {
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if [[ $SYSTEM_TYPE == "mesh"* ]]; then
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return
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fi
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if [[ $(is_completed "${FUNCNAME[0]}") == "1" ]]; then
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return
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fi
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if [ ! -f /etc/tor/torrc ]; then
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echo $'tor was not installed'
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exit 52952
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fi
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# resolve DNS via tor
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if ! grep -q 'DNSPort 53' /etc/tor/torrc; then
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echo 'DNSPort 53' >> /etc/tor/torrc
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echo 'AutomapHostsOnResolve 1' >> /etc/tor/torrc
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echo 'AutomapHostsSuffixes .exit,.onion' >> /etc/tor/torrc
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onion_update
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fi
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# don't change resolv.conf
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sed -i 's|, domain-name-servers||g' /etc/dhcp/dhclient.conf
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# point resolv.conf to tor
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resolvconf=/etc/resolvconf/resolv.conf.d/head
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echo 'nameserver 127.0.0.1:53' > $resolvconf
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resolvconf -u
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mark_completed "${FUNCNAME[0]}"
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}
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# see https://trac.torproject.org/projects/tor/wiki/doc/TransparentProxy
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# Local Redirection and Anonymizing Middlebox
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function route_outgoing_traffic_through_tor {
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if [[ $(is_completed "${FUNCNAME[0]}") == "1" ]]; then
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return
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fi
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if [[ $ROUTE_THROUGH_TOR != "yes" ]]; then
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return
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fi
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apt-get -yq install tor tor-arm
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### set variables
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# Destinations you don't want routed through Tor
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_non_tor="192.168.1.0/24 192.168.0.0/24"
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# The user that Tor runs as
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_tor_uid="debian-tor"
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# Tor's TransPort
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_trans_port="9040"
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# Your internal interface
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_int_if="eth0"
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### Set iptables *nat
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iptables -t nat -A OUTPUT -o lo -j RETURN
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iptables -t nat -A OUTPUT -m owner --uid-owner $_tor_uid -j RETURN
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iptables -t nat -A OUTPUT -p udp --dport 53 -j REDIRECT --to-ports 53
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# Allow clearnet access for hosts in $_non_tor
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for _clearnet in $_non_tor; do
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iptables -t nat -A OUTPUT -d $_clearnet -j RETURN
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iptables -t nat -A PREROUTING -i $_int_if -d $_clearnet -j RETURN
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done
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# Redirect all other pre-routing and output to Tor
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iptables -t nat -A OUTPUT -p tcp --syn -j REDIRECT --to-ports $_trans_port
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iptables -t nat -A PREROUTING -i $_int_if -p udp --dport 53 -j REDIRECT --to-ports 53
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iptables -t nat -A PREROUTING -i $_int_if -p tcp --syn -j REDIRECT --to-ports $_trans_port
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### set iptables *filter
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iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
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# Allow clearnet access for hosts in $_non_tor
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for _clearnet in $_non_tor 127.0.0.0/8; do
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iptables -A OUTPUT -d $_clearnet -j ACCEPT
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done
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# Allow only Tor output
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iptables -A OUTPUT -m owner --uid-owner $_tor_uid -j ACCEPT
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iptables -A OUTPUT -j REJECT
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function_check save_firewall_settings
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save_firewall_settings
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if ! grep -q "fs.file-max" /etc/sysctl.conf; then
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echo "fs.file-max=100000" >> /etc/sysctl.conf
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/sbin/sysctl -p -q
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fi
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resolvconf=/etc/resolvconf/resolv.conf.d/head
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echo 'domain localdomain' > $resolvconf
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echo 'search localdomain' >> $resolvconf
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echo 'nameserver 127.0.0.1' >> $resolvconf
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resolvconf -u
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if ! grep -q "VirtualAddrNetworkIPv4" /etc/tor/torrc; then
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echo 'VirtualAddrNetworkIPv4 10.192.0.0/10' >> /etc/tor/torrc
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fi
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if ! grep -q "AutomapHostsOnResolve" /etc/tor/torrc; then
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echo 'AutomapHostsOnResolve 1' >> /etc/tor/torrc
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fi
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if ! grep -q "TransPort" /etc/tor/torrc; then
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echo 'TransPort 9040' >> /etc/tor/torrc
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fi
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if ! grep -q "TransListenAddress 127.0.0.1" /etc/tor/torrc; then
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echo 'TransListenAddress 127.0.0.1' >> /etc/tor/torrc
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fi
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if ! grep -q "TransListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" /etc/tor/torrc; then
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echo "TransListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" >> /etc/tor/torrc
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fi
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if ! grep -q "DNSPort" /etc/tor/torrc; then
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echo 'DNSPort 53' >> /etc/tor/torrc
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fi
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if ! grep -q "DNSListenAddress 127.0.0.1" /etc/tor/torrc; then
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echo 'DNSListenAddress 127.0.0.1' >> /etc/tor/torrc
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fi
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if ! grep -q "DNSListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" /etc/tor/torrc; then
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echo "DNSListenAddress $LOCAL_NETWORK_STATIC_IP_ADDRESS" >> /etc/tor/torrc
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fi
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mark_completed "${FUNCNAME[0]}"
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}
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function get_app_onion_address {
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app_name="$1"
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mobilestr="$2"
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if [ ${#mobilestr} -gt 0 ]; then
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app_name="mobile${app_name}"
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fi
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if grep -q "${app_name} onion domain" $COMPLETION_FILE; then
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if grep -q "${app_name} onion domain" $COMPLETION_FILE; then
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echo $(cat ${COMPLETION_FILE} | grep "${app_name} onion domain" | head -n 1 | awk -F ':' '{print $2}')
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return
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fi
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fi
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echo ""
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}
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function tor_add_bridge {
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bridge_ip_address="$1"
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bridge_port="$2"
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bridge_key="$3"
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bridge_type='obfs4'
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if [[ "$bridge_ip_address" != *"."* ]]; then
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return
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fi
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if [ ${#bridge_port} -eq 0 ]; then
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return
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fi
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if [ ${#bridge_key} -eq 0 ]; then
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return
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fi
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apt-get -yq install obfs4proxy
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if grep -q "ClientTransportPlugin" /etc/tor/torrc; then
|
|
sed -i 's|#ClientTransportPlugin|ClientTransportPlugin|g' /etc/tor/torrc
|
|
sed -i 's|# ClientTransportPlugin|ClientTransportPlugin|g' /etc/tor/torrc
|
|
sed -i 's|ClientTransportPlugin.*|ClientTransportPlugin obfs4 exec /usr/bin/obfs4proxy managed|g' /etc/tor/torrc
|
|
else
|
|
echo 'ClientTransportPlugin obfs4 exec /usr/bin/obfs4proxy managed' >> /etc/tor/torrc
|
|
fi
|
|
if grep -q "UseBridges" /etc/tor/torrc; then
|
|
sed -i 's|#UseBridges|UseBridges|g' /etc/tor/torrc
|
|
sed -i 's|# UseBridges|UseBridges|g' /etc/tor/torrc
|
|
sed -i 's|UseBridges.*|UseBridges 1|g' /etc/tor/torrc
|
|
else
|
|
echo 'UseBridges 1' >> /etc/tor/torrc
|
|
fi
|
|
|
|
bridge_str="Bridge $bridge_type ${bridge_ip_address}:${bridge_port} ${bridge_key}"
|
|
if ! grep -q "${bridge_str}" /etc/tor/torrc; then
|
|
sed -i "/UseBridges/a ${bridge_str}" >> /etc/tor/torrc
|
|
fi
|
|
|
|
systemctl restart tor
|
|
}
|
|
|
|
function tor_remove_bridge {
|
|
bridge_ip_address="$1"
|
|
bridge_type='obfs4'
|
|
|
|
if [[ "$bridge_ip_address" == *"."* ]]; then
|
|
bridge_str="Bridge $bridge_type ${bridge_ip_address}"
|
|
else
|
|
if grep -q " ${bridge_ip_address}" /etc/tor/torrc; then
|
|
bridge_str=" ${bridge_ip_address}"
|
|
else
|
|
return
|
|
fi
|
|
fi
|
|
if grep -q "${bridge_str}" /etc/tor/torrc; then
|
|
sed -i "/${bridge_str}/d" /etc/tor/torrc
|
|
fi
|
|
|
|
# If there are no bridges remaining then remove UseBridges
|
|
if ! grep -q "Bridge " /etc/tor/torrc; then
|
|
if ! grep -q "#UseBridges" /etc/tor/torrc; then
|
|
sed -i 's|UseBridges|#UseBridges|g' /etc/tor/torrc
|
|
fi
|
|
if ! grep -q "#ClientTransportPlugin" /etc/tor/torrc; then
|
|
sed -i 's|ClientTransportPlugin|#ClientTransportPlugin|g' /etc/tor/torrc
|
|
fi
|
|
fi
|
|
|
|
systemctl restart tor
|
|
}
|
|
|
|
function tor_create_bridge_relay {
|
|
read_config_param 'TOR_BRIDGE_PORT'
|
|
read_config_param 'TOR_BRIDGE_NICKNAME'
|
|
if [ ! $TOR_BRIDGE_PORT ]; then
|
|
return
|
|
fi
|
|
if [ ${#TOR_BRIDGE_PORT} -eq 0 ]; then
|
|
return
|
|
fi
|
|
if [ ${#TOR_BRIDGE_NICKNAME} -eq 0 ]; then
|
|
return
|
|
fi
|
|
|
|
apt-get -yq install obfs4proxy
|
|
|
|
sed -i 's|#BridgeRelay.*|BridgeRelay 1|g' /etc/tor/torrc
|
|
sed -i 's|BridgeRelay.*|BridgeRelay 1|g' /etc/tor/torrc
|
|
sed -i 's|#ServerTransportPlugin.*|ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy|g' /etc/tor/torrc
|
|
sed -i 's|ServerTransportPlugin.*|ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy|g' /etc/tor/torrc
|
|
|
|
if ! grep -q 'ExtORPort ' /etc/tor/torrc; then
|
|
echo "ExtORPort $TOR_BRIDGE_PORT" >> /etc/tor/torrc
|
|
else
|
|
sed -i "s|#ExtORPort .*|ExtORPort $TOR_BRIDGE_PORT|g" /etc/tor/torrc
|
|
sed -i "s|ExtORPort .*|ExtORPort $TOR_BRIDGE_PORT|g" /etc/tor/torrc
|
|
fi
|
|
|
|
read_config_param 'MY_EMAIL_ADDRESS'
|
|
|
|
sed -i "s|#ContactInfo.*|ContactInfo $MY_EMAIL_ADDRESS|g" /etc/tor/torrc
|
|
if [ $TOR_BRIDGE_NICKNAME ]; then
|
|
sed -i "s|#Nickname.*|Nickname $TOR_BRIDGE_NICKNAME|g" /etc/tor/torrc
|
|
sed -i "s|Nickname.*|Nickname $TOR_BRIDGE_NICKNAME|g" /etc/tor/torrc
|
|
fi
|
|
firewall_add tor_bridge $TOR_BRIDGE_PORT tcp
|
|
systemctl restart tor
|
|
}
|
|
|
|
function tor_remove_bridge_relay {
|
|
if ! grep -q '#BridgeRelay ' /etc/tor/torrc; then
|
|
sed -i 's|BridgeRelay |#BridgeRelay |g' /etc/tor/torrc
|
|
fi
|
|
if ! grep -q '#ServerTransportPlugin ' /etc/tor/torrc; then
|
|
sed -i 's|ServerTransportPlugin |#ServerTransportPlugin |g' /etc/tor/torrc
|
|
fi
|
|
if ! grep -q '#ExtORPort ' /etc/tor/torrc; then
|
|
sed -i 's|ExtORPort |#ExtORPort |g' /etc/tor/torrc
|
|
fi
|
|
if ! grep -q '#ContactInfo ' /etc/tor/torrc; then
|
|
sed -i "s|ContactInfo |#ContactInfo |g" /etc/tor/torrc
|
|
fi
|
|
if ! grep -q '#Nickname ' /etc/tor/torrc; then
|
|
sed -i "s|Nickname |#Nickname |g" /etc/tor/torrc
|
|
fi
|
|
read_config_param 'TOR_BRIDGE_PORT'
|
|
firewall_remove $TOR_BRIDGE_PORT tcp
|
|
systemctl restart tor
|
|
}
|
|
|
|
# NOTE: deliberately no exit 0
|