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https://gitlab.com/bashrc2/epicyon
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Move notification script to scripts
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bashrc committed
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#!/bin/bash
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#
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# This can be called from a crontab entry to send notifications
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# when Epicyon events occur. You will need to have
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# sendxmpp+prosody or Synapse (matrix) installed.
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#
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# Something like:
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#
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# */1 * * * * root /usr/local/bin/epicyon-notification --epicyon yes
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#
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# License
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# =======
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#
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# Copyright (C) 2020-2021 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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PROJECT_NAME=epicyon
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epicyonInstallDir=/opt/${PROJECT_NAME}
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local_domain=$HOSTNAME
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if [ -f /var/lib/tor/hidden_service_epicyon/hostname ]; then
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local_domain=$(cat /var/lib/tor/hidden_service_epicyon/hostname)
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fi
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function notification_translate_text {
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text="$1"
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if ! grep -q '"language":' "${epicyonInstallDir}/config.json"; then
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echo "$text"
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return
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fi
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language=$(cat "${epicyonInstallDir}/config.json" | awk -F '"language":' '{print $2}' | awk -F '"' '{print $2}')
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translationsFilename="${epicyonInstallDir}/translations/${language}.json"
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if [ ! -f "$translationsFilename" ]; then
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echo "$text"
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return
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fi
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if ! grep -q "\"$text\":" "$translationsFilename"; then
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echo "$text"
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return
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fi
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grep "\"$text\":" "$translationsFilename" | awk -F '"' '{print $4}'
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}
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function kill_sendxmpp_process {
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# Sometimes the process can get stuck, so ensure that
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# it gets killed if necessary
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# shellcheck disable=SC2009
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sendxmpp_pid=$(ps ax | grep /usr/bin/sendxmpp | grep -v grep | awk -F ' ' '{print $1}')
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if [ "$sendxmpp_pid" ]; then
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kill -9 "$sendxmpp_pid"
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fi
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}
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function matrix_server_message {
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admin_username="$1"
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notifications_username="$2"
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message="$3"
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MATRIX_DATA_DIR='/var/lib/matrix'
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homeserver_config="${MATRIX_DATA_DIR}/homeserver.yaml"
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# shellcheck disable=SC2002
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MATRIX_DOMAIN_NAME=$(cat "$homeserver_config" | grep "server_name:" | head -n 1 | awk -F '"' '{print $2}')
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if [ ! "$MATRIX_DOMAIN_NAME" ]; then
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return
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fi
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# get the curl command and domain to send to
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curl_command='curl'
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homebase="https://$MATRIX_DOMAIN_NAME"
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if [ -f /var/lib/tor/hidden_service_matrix/hostname ]; then
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curl_command='torsocks curl'
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homebase="http://$(cat /var/lib/tor/hidden_service_matrix/hostname)"
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fi
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# get the token for the matrix admin user
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MATRIXADMIN="@${admin_username}:$MATRIX_DOMAIN_NAME"
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MATRIXUSER="@${notifications_username}:$MATRIX_DOMAIN_NAME"
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cd "$MATRIX_DATA_DIR" || return
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TOKEN=$(sqlite3 homeserver.db "select token from access_tokens where user_id like '$MATRIXADMIN' order by id desc limit 1;")
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if [ ! "$TOKEN" ]; then
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admin_username="${notifications_username}"
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TOKEN=$(sqlite3 homeserver.db "select token from access_tokens where user_id like '$MATRIXUSER' order by id desc limit 1;")
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if [ ! "$TOKEN" ]; then
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echo "No matrix token for $MATRIXADMIN"
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return
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fi
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fi
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# send server notice
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MATRIXPOST="${homebase}/_synapse/admin/v1/send_server_notice?access_token=${TOKEN}"
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MATRIXMESSAGE="{\"user_id\": \"${MATRIXUSER}\",\"content\": { \"msgtype\": \"m.text\",\"body\": \"${message}\" }}"
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# shellcheck disable=SC2086
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${curl_command} --request POST --silent --header "Content-Type: application/json" --data "${MATRIXMESSAGE}" ${MATRIXPOST} > /dev/null
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}
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function sendNotification {
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USERNAME="$1"
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SUBJECT="$2"
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MESSAGE="$3"
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if [ -d /etc/prosody ]; then
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if [ -f /usr/bin/sendxmpp ]; then
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notification_user_password=$(openssl rand -base64 32 | tr -dc A-Za-z0-9 | head -c 30 ; echo -n '')
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if prosodyctl register "notification" "$local_domain" "$notification_user_password"; then
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if [[ "$SUBJECT" == *' Tor '* ]]; then
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MESSAGE="$SUBJECT"
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fi
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if [ -f /usr/bin/sendxmpp ]; then
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kill_sendxmpp_process
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echo "${MESSAGE}" | /usr/bin/sendxmpp -u notification -p "${notification_user_password}" -j localhost -o ${local_domain} --message-type=headline -n -t -s ${PROJECT_NAME} ${USERNAME}@${local_domain}
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fi
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fi
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prosodyctl deluser "notification@$local_domain"
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fi
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fi
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if [ -d /etc/matrix ]; then
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matrix_server_message "${USERNAME}" "${USERNAME}" "$MESSAGE"
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fi
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}
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function notifications {
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# checks if DMs or replies have arrived and sends notifications to users
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if [ ! -f "$epicyonInstallDir/config.json" ]; then
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return
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fi
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if [ ! -f "${epicyonInstallDir}/config.json" ]; then
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return
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fi
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# shellcheck disable=SC2002
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EPICYON_DOMAIN_NAME=$(cat "${epicyonInstallDir}/config.json" | awk -F '"domain":' '{print $2}' | awk -F '"' '{print $2}')
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for d in ${epicyonInstallDir}/accounts/*/ ; do
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if [[ "$d" != *'@'* ]]; then
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continue
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fi
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epicyonDir="${d::-1}"
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USERNAME=$(echo "$epicyonDir" | awk -F '/' '{print $5}' | awk -F '@' '{print $1}')
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# send notifications for calendar events to XMPP/email users
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epicyonCalendarfile="$epicyonDir/.newCalendar"
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if [ -f "$epicyonCalendarfile" ]; then
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if ! grep -q "##sent##" "$epicyonCalendarfile"; then
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epicyonCalendarmessage=$(notification_translate_text 'New calendar event')
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epicyonCalendarfileContent=$(echo "$epicyonCalendarmessage")" "$(cat "$epicyonCalendarfile")
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if [[ "$epicyonCalendarfileContent" == '/calendar'* ]]; then
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epicyonCalendarmessage="Epicyon: ${EPICYON_DOMAIN_NAME}/users/${USERNAME}${epicyonCalendarfileContent}"
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fi
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sendNotification "$USERNAME" "Epicyon" "$epicyonCalendarmessage"
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echo "##sent##" >> "$epicyonCalendarfile"
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chown ${PROJECT_NAME}:${PROJECT_NAME} "$epicyonCalendarfile"
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fi
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fi
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# send notifications for DMs to XMPP/email users
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epicyonDMfile="$epicyonDir/.newDM"
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if [ -f "$epicyonDMfile" ]; then
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if ! grep -q "##sent##" "$epicyonDMfile"; then
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epicyonDMmessage=$(notification_translate_text 'New direct message')
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epicyonDMfileContent=$(echo "$epicyonDMmessage")" "$(cat "$epicyonDMfile")
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if [[ "$epicyonDMfileContent" == *':'* ]]; then
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epicyonDMmessage="Epicyon: $epicyonDMfileContent"
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fi
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sendNotification "$USERNAME" "Epicyon" "$epicyonDMmessage"
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echo "##sent##" > "$epicyonDMfile"
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chown ${PROJECT_NAME}:${PROJECT_NAME} "$epicyonDMfile"
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fi
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fi
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# send notifications for likes to XMPP/email users
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epicyonLikeFile="$epicyonDir/.newLike"
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if [ -f "$epicyonLikeFile" ]; then
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if ! grep -q "##sent##" "$epicyonLikeFile"; then
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epicyonLikeMessage=$(notification_translate_text 'liked your post')
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epicyonLikeFileContent=$(cat "$epicyonLikeFile" | awk -F ' ' '{print $1}')" "$(echo "$epicyonLikeMessage")" "$(cat "$epicyonLikeFile" | awk -F ' ' '{print $2}')
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if [[ "$epicyonLikeFileContent" == *':'* ]]; then
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epicyonLikeMessage="Epicyon: $epicyonLikeFileContent"
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fi
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"${PROJECT_NAME}-notification" -u "$USERNAME" -s "Epicyon" -m "$epicyonLikeMessage" --sensitive yes
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echo "##sent##" > "$epicyonLikeFile"
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chown ${PROJECT_NAME}:${PROJECT_NAME} "$epicyonLkeFile"
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fi
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fi
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# send notifications for replies to XMPP/email users
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epicyonReplyFile="$epicyonDir/.newReply"
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if [ -f "$epicyonReplyFile" ]; then
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if ! grep -q "##sent##" "$epicyonReplyFile"; then
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epicyonReplyMessage=$(notification_translate_text 'New reply')
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epicyonReplyFileContent=$(echo "$epicyonReplyMessage")" "$(cat "$epicyonReplyFile")
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if [[ "$epicyonReplyFileContent" == *':'* ]]; then
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epicyonReplyMessage="Epicyon: $epicyonReplyFileContent"
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fi
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sendNotification "$USERNAME" "Epicyon" "$epicyonReplyMessage"
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echo "##sent##" > "$epicyonReplyFile"
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chown ${PROJECT_NAME}:${PROJECT_NAME} "$epicyonReplyFile"
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fi
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fi
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# send notifications for git patches to XMPP/email users
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epicyonPatchFile="$epicyonDir/.newPatch"
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if [ -f "$epicyonPatchFile" ]; then
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if [ -f "${epicyonPatchFile}Content" ]; then
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if ! grep -q "##sent##" "$epicyonPatchFile"; then
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epicyonPatchMessage=$(cat "$epicyonPatchFile")
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if [ "$epicyonPatchMessage" ]; then
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# notify the member
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sendNotification "$USERNAME" "Epicyon" "$epicyonPatchMessage"
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echo "##sent##" > "$epicyonPatchFile"
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chown ${PROJECT_NAME}:${PROJECT_NAME} "$epicyonPatchFile"
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# send the patch to them by email
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cat "${epicyonPatchFile}Content" | mail -s "[Epicyon] $epicyonPatchMessage" "${USERNAME}@${HOSTNAME}"
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rm "${epicyonPatchFile}Content"
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fi
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fi
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fi
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fi
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# send notifications for new shared items to XMPP/email users
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epicyonShareFile="$epicyonDir/.newShare"
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if [ -f "$epicyonShareFile" ]; then
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if ! grep -q "##sent##" "$epicyonShareFile"; then
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epicyonShareMessage=$(notification_translate_text 'New shared item')
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epicyonShareFileContent=$(echo "$epicyonShareMessage")" "$(cat "$epicyonShareFile")
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if [[ "$epicyonShareFileContent" == *':'* ]]; then
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epicyonShareMessage="Epicyon: $epicyonShareFileContent"
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fi
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sendNotification "$USERNAME" "Epicyon" "$epicyonShareMessage"
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echo "##sent##" > "$epicyonShareFile"
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chown ${PROJECT_NAME}:${PROJECT_NAME} "$epicyonShareFile"
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fi
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fi
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# send notifications for follow requests to XMPP/email users
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epicyonFollowFile="$epicyonDir/followrequests.txt"
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epicyonFollowNotificationsFile="$epicyonDir/follownotifications.txt"
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if [ -f "$epicyonFollowFile" ]; then
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if [ -s "$epicyonFollowFile" ]; then
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epicyonNotify=
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if [ -f "$epicyonFollowNotificationsFile" ]; then
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hash1=$(sha256sum "$epicyonFollowFile" | awk -F ' ' '{print $1}')
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hash2=$(sha256sum "$epicyonFollowNotificationsFile" | awk -F ' ' '{print $1}')
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if [[ "$hash1" != "$hash2" ]]; then
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epicyonNotify=1
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fi
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else
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epicyonNotify=1
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fi
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if [ $epicyonNotify ]; then
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cp "$epicyonFollowFile" "$epicyonFollowNotificationsFile"
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chown ${PROJECT_NAME}:${PROJECT_NAME} "$epicyonFollowNotificationsFile"
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epicyonFollowMessage=$(notification_translate_text "New follow request")" ${EPICYON_DOMAIN_NAME}/users/${USERNAME}/followers"
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sendNotification "$USERNAME" "Epicyon" "$epicyonFollowMessage"
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fi
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fi
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fi
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done
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}
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notifications
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