|
@@ -0,0 +1,141 @@
|
|
|
+#!/bin/bash
|
|
|
+
|
|
|
+# this script will use the api:
|
|
|
+# https://github.com/matrix-org/synapse/blob/master/docs/admin_api/purge_history_api.rst
|
|
|
+#
|
|
|
+# It will purge all messages in a list of rooms up to a cetrain event
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# define your domain and admin user
|
|
|
+###################################################################################################
|
|
|
+# add this user as admin in your home server:
|
|
|
+DOMAIN=yourserver.tld
|
|
|
+# add this user as admin in your home server:
|
|
|
+ADMIN="@you_admin_username:$DOMAIN"
|
|
|
+
|
|
|
+API_URL="$DOMAIN:8008/_matrix/client/r0"
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+#choose the rooms to prune old messages from (add a free comment at the end)
|
|
|
+###################################################################################################
|
|
|
+# the room_id's you can get e.g. from your Riot clients "View Source" button on each message
|
|
|
+ROOMS_ARRAY=(
|
|
|
+'!DgvjtOljKujDBrxyHk:matrix.org#riot:matrix.org'
|
|
|
+'!QtykxKocfZaZOUrTwp:matrix.org#Matrix HQ'
|
|
|
+)
|
|
|
+
|
|
|
+# ALTERNATIVELY:
|
|
|
+# you can select all the rooms that are not encrypted and loop over the result:
|
|
|
+# SELECT room_id FROM rooms WHERE room_id NOT IN (SELECT DISTINCT room_id FROM events WHERE type ='m.room.encrypted')
|
|
|
+# or
|
|
|
+# select all rooms with at least 100 members:
|
|
|
+# SELECT q.room_id FROM (select count(*) as numberofusers, room_id FROM current_state_events WHERE type ='m.room.member'
|
|
|
+# GROUP BY room_id) AS q LEFT JOIN room_aliases a ON q.room_id=a.room_id WHERE q.numberofusers > 100 ORDER BY numberofusers desc
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# evaluate the EVENT_ID before which should be pruned
|
|
|
+###################################################################################################
|
|
|
+# choose a time before which the messages should be pruned:
|
|
|
+TIME='12 months ago'
|
|
|
+# ALTERNATIVELY:
|
|
|
+# a certain time:
|
|
|
+# TIME='2016-08-31 23:59:59'
|
|
|
+
|
|
|
+# creates a timestamp from the given time string:
|
|
|
+UNIX_TIMESTAMP=$(date +%s%3N --date='TZ="UTC+2" '"$TIME")
|
|
|
+
|
|
|
+# ALTERNATIVELY:
|
|
|
+# prune all messages that are older than 1000 messages ago:
|
|
|
+# LAST_MESSAGES=1000
|
|
|
+# SQL_GET_EVENT="SELECT event_id from events WHERE type='m.room.message' AND room_id ='$ROOM' ORDER BY received_ts DESC LIMIT 1 offset $(($LAST_MESSAGES - 1))"
|
|
|
+
|
|
|
+# ALTERNATIVELY:
|
|
|
+# select the EVENT_ID manually:
|
|
|
+#EVENT_ID='$1471814088343495zpPNI:matrix.org' # an example event from 21st of Aug 2016 by Matthew
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# make the admin user a server admin in the database with
|
|
|
+###################################################################################################
|
|
|
+# psql -A -t --dbname=synapse -c "UPDATE users SET admin=1 WHERE name LIKE '$ADMIN'"
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# database function
|
|
|
+###################################################################################################
|
|
|
+sql (){
|
|
|
+ # for sqlite3:
|
|
|
+ #sqlite3 homeserver.db "pragma busy_timeout=20000;$1" | awk '{print $2}'
|
|
|
+ # for postgres:
|
|
|
+ psql -A -t --dbname=synapse -c "$1" | grep -v 'Pager'
|
|
|
+}
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# get an access token
|
|
|
+###################################################################################################
|
|
|
+# for example externally by watching Riot in your browser's network inspector
|
|
|
+# or internally on the server locally, use this:
|
|
|
+TOKEN=$(sql "SELECT token FROM access_tokens WHERE user_id='$ADMIN' ORDER BY id DESC LIMIT 1")
|
|
|
+AUTH="Authorization: Bearer $TOKEN"
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# check, if your TOKEN works. For example this works:
|
|
|
+###################################################################################################
|
|
|
+# $ curl --header "$AUTH" "$API_URL/rooms/$ROOM/state/m.room.power_levels"
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# finally start pruning the room:
|
|
|
+###################################################################################################
|
|
|
+POSTDATA='{"delete_local_events":"true"}' # this will really delete local events, so the messages in the room really disappear unless they are restored by remote federation
|
|
|
+
|
|
|
+for ROOM in "${ROOMS_ARRAY[@]}"; do
|
|
|
+ echo "########################################### $(date) ################# "
|
|
|
+ echo "pruning room: $ROOM ..."
|
|
|
+ ROOM=${ROOM%#*}
|
|
|
+ #set -x
|
|
|
+ echo "check for alias in db..."
|
|
|
+ # for postgres:
|
|
|
+ sql "SELECT * FROM room_aliases WHERE room_id='$ROOM'"
|
|
|
+ echo "get event..."
|
|
|
+ # for postgres:
|
|
|
+ EVENT_ID=$(sql "SELECT event_id FROM events WHERE type='m.room.message' AND received_ts<'$UNIX_TIMESTAMP' AND room_id='$ROOM' ORDER BY received_ts DESC LIMIT 1;")
|
|
|
+ if [ "$EVENT_ID" == "" ]; then
|
|
|
+ echo "no event $TIME"
|
|
|
+ else
|
|
|
+ echo "event: $EVENT_ID"
|
|
|
+ SLEEP=2
|
|
|
+ set -x
|
|
|
+ # call purge
|
|
|
+ OUT=$(curl --header "$AUTH" -s -d $POSTDATA POST "$API_URL/admin/purge_history/$ROOM/$EVENT_ID")
|
|
|
+ PURGE_ID=$(echo "$OUT" |grep purge_id|cut -d'"' -f4 )
|
|
|
+ if [ "$PURGE_ID" == "" ]; then
|
|
|
+ # probably the history purge is already in progress for $ROOM
|
|
|
+ : "continuing with next room"
|
|
|
+ else
|
|
|
+ while : ; do
|
|
|
+ # get status of purge and sleep longer each time if still active
|
|
|
+ sleep $SLEEP
|
|
|
+ STATUS=$(curl --header "$AUTH" -s GET "$API_URL/admin/purge_history_status/$PURGE_ID" |grep status|cut -d'"' -f4)
|
|
|
+ : "$ROOM --> Status: $STATUS"
|
|
|
+ [[ "$STATUS" == "active" ]] || break
|
|
|
+ SLEEP=$((SLEEP + 1))
|
|
|
+ done
|
|
|
+ fi
|
|
|
+ set +x
|
|
|
+ sleep 1
|
|
|
+ fi
|
|
|
+done
|
|
|
+
|
|
|
+
|
|
|
+###################################################################################################
|
|
|
+# additionally
|
|
|
+###################################################################################################
|
|
|
+# to benefit from pruning large amounts of data, you need to call VACUUM to free the unused space.
|
|
|
+# This can take a very long time (hours) and the client have to be stopped while you do so:
|
|
|
+# $ synctl stop
|
|
|
+# $ sqlite3 -line homeserver.db "vacuum;"
|
|
|
+# $ synctl start
|
|
|
+
|
|
|
+# This could be set, so you don't need to prune every time after deleting some rows:
|
|
|
+# $ sqlite3 homeserver.db "PRAGMA auto_vacuum = FULL;"
|
|
|
+# be cautious, it could make the database somewhat slow if there are a lot of deletions
|
|
|
+
|
|
|
+exit
|