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phorge-phorge/support/aphlict/server/lib/AphlictClientServer.js

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'use strict';
var JX = require('./javelin').JX;
require('./AphlictListenerList');
require('./AphlictLog');
Namespace Aphlict clients by request path, plus other fixes Summary: Fixes T7130. Fixes T7041. Fixes T7012. Major change here is partitioning clients. In the Phacility cluster, being able to get a huge pile of instances on a single server -- without needing to run a process per instance -- is desirable. To accomplish this, just bucket clients by the path they connect with. This will let us set client URIs to `/instancename/` and then route connections to a small set of servers. This degrades cleanly in the common case and has no effect on installs which don't do instancing. Also fix two unrelated issues: - Fix the timeouts, which were incorrectly initializing in `open()` (which is called during reconnect, causing them to reset every time). Instead, initialize in the constructor. Cap timeout at 5 minutes. - Probably fix subscriptions, which were using a property with an object definition. Since this is by-ref, all concrete instances of the object share the same property, so all users would be subscribed to everything. Probably. Test Plan: - Hit notification status page, saw version bump and instance/path name. - Saw instance/path name in client and server logs. - Stopped server, saw reconnects after 2, 4, 16, ... seconds. - Sent test notification; received test notification. - Didn't explicitly test the subscription thing but it should be obvious by looking at `/notification/status/` shortly after a push. Reviewers: joshuaspence, btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T7041, T7012, T7130 Differential Revision: https://secure.phabricator.com/D11769
2015-02-16 20:31:15 +01:00
var url = require('url');
var util = require('util');
var WebSocket = require('ws');
JX.install('AphlictClientServer', {
construct: function(server) {
this.setLogger(new JX.AphlictLog());
this._server = server;
Namespace Aphlict clients by request path, plus other fixes Summary: Fixes T7130. Fixes T7041. Fixes T7012. Major change here is partitioning clients. In the Phacility cluster, being able to get a huge pile of instances on a single server -- without needing to run a process per instance -- is desirable. To accomplish this, just bucket clients by the path they connect with. This will let us set client URIs to `/instancename/` and then route connections to a small set of servers. This degrades cleanly in the common case and has no effect on installs which don't do instancing. Also fix two unrelated issues: - Fix the timeouts, which were incorrectly initializing in `open()` (which is called during reconnect, causing them to reset every time). Instead, initialize in the constructor. Cap timeout at 5 minutes. - Probably fix subscriptions, which were using a property with an object definition. Since this is by-ref, all concrete instances of the object share the same property, so all users would be subscribed to everything. Probably. Test Plan: - Hit notification status page, saw version bump and instance/path name. - Saw instance/path name in client and server logs. - Stopped server, saw reconnects after 2, 4, 16, ... seconds. - Sent test notification; received test notification. - Didn't explicitly test the subscription thing but it should be obvious by looking at `/notification/status/` shortly after a push. Reviewers: joshuaspence, btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T7041, T7012, T7130 Differential Revision: https://secure.phabricator.com/D11769
2015-02-16 20:31:15 +01:00
this._lists = {};
},
members: {
_server: null,
Namespace Aphlict clients by request path, plus other fixes Summary: Fixes T7130. Fixes T7041. Fixes T7012. Major change here is partitioning clients. In the Phacility cluster, being able to get a huge pile of instances on a single server -- without needing to run a process per instance -- is desirable. To accomplish this, just bucket clients by the path they connect with. This will let us set client URIs to `/instancename/` and then route connections to a small set of servers. This degrades cleanly in the common case and has no effect on installs which don't do instancing. Also fix two unrelated issues: - Fix the timeouts, which were incorrectly initializing in `open()` (which is called during reconnect, causing them to reset every time). Instead, initialize in the constructor. Cap timeout at 5 minutes. - Probably fix subscriptions, which were using a property with an object definition. Since this is by-ref, all concrete instances of the object share the same property, so all users would be subscribed to everything. Probably. Test Plan: - Hit notification status page, saw version bump and instance/path name. - Saw instance/path name in client and server logs. - Stopped server, saw reconnects after 2, 4, 16, ... seconds. - Sent test notification; received test notification. - Didn't explicitly test the subscription thing but it should be obvious by looking at `/notification/status/` shortly after a push. Reviewers: joshuaspence, btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T7041, T7012, T7130 Differential Revision: https://secure.phabricator.com/D11769
2015-02-16 20:31:15 +01:00
_lists: null,
getListenerList: function(path) {
if (!this._lists[path]) {
this._lists[path] = new JX.AphlictListenerList(path);
}
return this._lists[path];
},
listen: function() {
var self = this;
var server = this._server.listen.apply(this._server, arguments);
var wss = new WebSocket.Server({server: server});
wss.on('connection', function(ws) {
Namespace Aphlict clients by request path, plus other fixes Summary: Fixes T7130. Fixes T7041. Fixes T7012. Major change here is partitioning clients. In the Phacility cluster, being able to get a huge pile of instances on a single server -- without needing to run a process per instance -- is desirable. To accomplish this, just bucket clients by the path they connect with. This will let us set client URIs to `/instancename/` and then route connections to a small set of servers. This degrades cleanly in the common case and has no effect on installs which don't do instancing. Also fix two unrelated issues: - Fix the timeouts, which were incorrectly initializing in `open()` (which is called during reconnect, causing them to reset every time). Instead, initialize in the constructor. Cap timeout at 5 minutes. - Probably fix subscriptions, which were using a property with an object definition. Since this is by-ref, all concrete instances of the object share the same property, so all users would be subscribed to everything. Probably. Test Plan: - Hit notification status page, saw version bump and instance/path name. - Saw instance/path name in client and server logs. - Stopped server, saw reconnects after 2, 4, 16, ... seconds. - Sent test notification; received test notification. - Didn't explicitly test the subscription thing but it should be obvious by looking at `/notification/status/` shortly after a push. Reviewers: joshuaspence, btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T7041, T7012, T7130 Differential Revision: https://secure.phabricator.com/D11769
2015-02-16 20:31:15 +01:00
var path = url.parse(ws.upgradeReq.url).pathname;
var listener = self.getListenerList(path).addListener(ws);
function log() {
self.getLogger().log(
util.format('<%s>', listener.getDescription()) +
' ' +
util.format.apply(null, arguments));
}
log('Connected from %s.', ws._socket.remoteAddress);
ws.on('message', function(data) {
log('Received message: %s', data);
var message;
try {
message = JSON.parse(data);
} catch (err) {
log('Message is invalid: %s', err.message);
return;
}
switch (message.command) {
case 'subscribe':
log(
'Subscribed to: %s',
JSON.stringify(message.data));
listener.subscribe(message.data);
break;
case 'unsubscribe':
log(
'Unsubscribed from: %s',
JSON.stringify(message.data));
listener.unsubscribe(message.data);
break;
default:
log(
'Unrecognized command "%s".',
message.command || '<undefined>');
}
});
ws.on('close', function() {
Namespace Aphlict clients by request path, plus other fixes Summary: Fixes T7130. Fixes T7041. Fixes T7012. Major change here is partitioning clients. In the Phacility cluster, being able to get a huge pile of instances on a single server -- without needing to run a process per instance -- is desirable. To accomplish this, just bucket clients by the path they connect with. This will let us set client URIs to `/instancename/` and then route connections to a small set of servers. This degrades cleanly in the common case and has no effect on installs which don't do instancing. Also fix two unrelated issues: - Fix the timeouts, which were incorrectly initializing in `open()` (which is called during reconnect, causing them to reset every time). Instead, initialize in the constructor. Cap timeout at 5 minutes. - Probably fix subscriptions, which were using a property with an object definition. Since this is by-ref, all concrete instances of the object share the same property, so all users would be subscribed to everything. Probably. Test Plan: - Hit notification status page, saw version bump and instance/path name. - Saw instance/path name in client and server logs. - Stopped server, saw reconnects after 2, 4, 16, ... seconds. - Sent test notification; received test notification. - Didn't explicitly test the subscription thing but it should be obvious by looking at `/notification/status/` shortly after a push. Reviewers: joshuaspence, btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T7041, T7012, T7130 Differential Revision: https://secure.phabricator.com/D11769
2015-02-16 20:31:15 +01:00
self.getListenerList(path).removeListener(listener);
log('Disconnected.');
});
wss.on('close', function() {
Namespace Aphlict clients by request path, plus other fixes Summary: Fixes T7130. Fixes T7041. Fixes T7012. Major change here is partitioning clients. In the Phacility cluster, being able to get a huge pile of instances on a single server -- without needing to run a process per instance -- is desirable. To accomplish this, just bucket clients by the path they connect with. This will let us set client URIs to `/instancename/` and then route connections to a small set of servers. This degrades cleanly in the common case and has no effect on installs which don't do instancing. Also fix two unrelated issues: - Fix the timeouts, which were incorrectly initializing in `open()` (which is called during reconnect, causing them to reset every time). Instead, initialize in the constructor. Cap timeout at 5 minutes. - Probably fix subscriptions, which were using a property with an object definition. Since this is by-ref, all concrete instances of the object share the same property, so all users would be subscribed to everything. Probably. Test Plan: - Hit notification status page, saw version bump and instance/path name. - Saw instance/path name in client and server logs. - Stopped server, saw reconnects after 2, 4, 16, ... seconds. - Sent test notification; received test notification. - Didn't explicitly test the subscription thing but it should be obvious by looking at `/notification/status/` shortly after a push. Reviewers: joshuaspence, btrahan Reviewed By: btrahan Subscribers: epriestley Maniphest Tasks: T7041, T7012, T7130 Differential Revision: https://secure.phabricator.com/D11769
2015-02-16 20:31:15 +01:00
self.getListenerList(path).removeListener(listener);
log('Disconnected.');
});
wss.on('error', function(err) {
log('Error: %s', err.message);
});
});
},
},
properties: {
logger: null,
}
});