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cryptpad
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implement optional channel removal hooks 

add configuration variables to the default config
This commit is contained in:
ansuz 2016-05-14 13:04:05 +02:00
parent d59824929d
commit 3232671a6a
2 changed files with 33 additions and 0 deletions
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24
NetfluxWebsocketSrv.js
View File

@ -62,6 +62,17 @@ dropUser = function (ctx, user) {
if (chan.length === 0) {
console.log("Removing empty channel ["+chanName+"]");
delete ctx.channels[chanName];
/* Call removeChannel if it is a function and channel removal is
set to true in the config file */
if (ctx.config.removeChannels && typeof(ctx.store.removeChannel) === 'function') {
ctx.timeouts[chanName] = setTimeout(function () {
ctx.store.removeChannel(chanName, function (err) {
if (err) { console.error("[removeChannelErr]: %s", err); }
console.log("Deleted channel [%s] history from database...", chanName);
});
}, ctx.config.channelRemovalTimeout);
}
} else {
sendChannelMessage(ctx, chan, [user.id, 'LEAVE', chanName, 'Quit: [ dropUser() ]']);
}
@ -91,6 +102,12 @@ const handleMessage = function (ctx, user, msg) {
let chanName = obj || randName();
sendMsg(ctx, user, [seq, 'JACK', chanName]);
let chan = ctx.channels[chanName] = ctx.channels[chanName] || [];
// prevent removal of the channel if there is a pending timeout
if (ctx.config.removeChannels && ctx.timeouts[chanName]) {
clearTimeout(ctx.timeouts[chanName]);
}
chan.id = chanName;
if (USE_HISTORY_KEEPER) {
sendMsg(ctx, user, [0, HISTORY_KEEPER_ID, 'JOIN', chanName]);
@ -154,9 +171,16 @@ const handleMessage = function (ctx, user, msg) {
};
let run = module.exports.run = function (storage, socketServer, config) {
/* Channel removal timeout defaults to 60000ms (one minute) */
config.channelRemovalTimeout =
typeof(config.channelRemovalTimeout) === 'number'?
config.channelRemovalTimeout:
60000;
let ctx = {
users: {},
channels: {},
timeouts: {},
store: (USE_FILE_BACKUP_STORAGE) ? LogStore.create('messages.log', storage) : storage,
config: config
};

9
config.js.dist
View File

@ -17,6 +17,15 @@ module.exports = {
*/
logToStdout: false,
/* Cryptpad can be configured to remove channels some number of ms
after the last remaining client has disconnected.
Default behaviour is to keep channels forever.
If you enable channel removal, the default removal time is one minute
*/
removeChannels: false,
channelRemovalTimeout: 60000,
// You now have a choice of storage engines
/* amnesiadb only exists in memory.