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- #!/bin/bash
- #
- # .---. . .
- # | | |
- # |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
- # | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
- # ' ' --' --' -' - -' ' ' -' -' -' ' - --'
- #
- # Freedom in the Cloud
- #
- # Time functions
- #
- # License
- # =======
- #
- # Copyright (C) 2014-2016 Bob Mottram <bob@robotics.uk.to>
- #
- # 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/>.
-
- # Why use Google as a time source?
- # The thinking here is that it's likely to be reliable and fast.
- # The ping doesn't reveal any information other than that the server
- # is running, and if anyone maliciously alters the time on Google's
- # servers then that would certainly be newsworthy and they'd be
- # likely to do something about it quickly.
- # If you have better time sources then change them here.
- TLS_TIME_SOURCE1="google.com"
- TLS_TIME_SOURCE2="www.ptb.de"
-
- # Time synchronisation
- TLSDATE_REPO="https://github.com/bashrc/tlsdate"
- TLSDATE_COMMIT='505e31540eebde8074e7dc93b29be0d848def06a'
-
- function check_date {
- curr_date=$(date)
- if [[ $curr_date == *"1970"* ]]; then
- apt-get -y install ntp
- fi
- }
-
- function time_synchronisation {
- # mesh peers typically don't sync over the internet
- if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
- return
- fi
-
- if [ -f /usr/local/bin/${PROJECT_NAME}-update-date ]; then
- cp /usr/local/bin/${PROJECT_NAME}-update-date /usr/bin/updatedate
- else
- cp /usr/bin/${PROJECT_NAME}-update-date /usr/bin/updatedate
- fi
- chmod +x /usr/bin/updatedate
-
- if grep -Fxq "time_synchronisation" $COMPLETION_FILE; then
- return
- fi
-
- apt-get -y install tlsdate
- apt-get -y remove ntpdate
-
- function_check cron_add_mins
- cron_add_mins 15 '/usr/bin/updatedate'
-
- systemctl restart cron
-
- echo 'time_synchronisation' >> $COMPLETION_FILE
- }
-
- function time_synchronisation_tlsdate {
- # mesh peers typically don't sync over the internet
- if [[ $SYSTEM_TYPE == "$VARIANT_MESH" ]]; then
- return
- fi
-
- if [ -f /usr/local/bin/${PROJECT_NAME}-update-date ]; then
- cp /usr/local/bin/${PROJECT_NAME}-update-date /usr/bin/updatedate
- else
- cp /usr/bin/${PROJECT_NAME}-update-date /usr/bin/updatedate
- fi
- chmod +x /usr/bin/updatedate
-
- if [ ! -d $INSTALL_DIR ]; then
- mkdir -p $INSTALL_DIR
- fi
- set_repo_commit $INSTALL_DIR/tlsdate "tlsdate commit" "$TLSDATE_COMMIT" $TLSDATE_REPO
-
- if grep -Fxq "time_synchronisation_tlsdate" $COMPLETION_FILE; then
- return
- fi
-
- apt-get -y remove tlsdate ntpdate
- apt-get -y install build-essential autoconf libevent-dev
- apt-get -y install pkg-config libtool libssl-dev
-
- cd $INSTALL_DIR
- function_check git_clone
- git_clone $TLSDATE_REPO $INSTALL_DIR/tlsdate
- cd $INSTALL_DIR/tlsdate
- git checkout $TLSDATE_COMMIT -b $TLSDATE_COMMIT
- ./autogen.sh
- ./configure
- if [ ! "$?" = "0" ]; then
- echo $'Unable to configure tlsdate'
- exit 6825277
- fi
- make
- if [ ! "$?" = "0" ]; then
- echo $'Unable to build tlsdate'
- exit 3792726
- fi
- make install
-
- function_check cron_add_mins
- cron_add_mins 15 '/usr/bin/updatedate'
-
- echo 'time_synchronisation_tlsdate' >> $COMPLETION_FILE
- }
-
- # NOTE: deliberately no exit 0
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