An error occurred while loading the file. Please try again.
-
Lukas F. Hartmann authored6d2d2310
'use strict';const config = require('config');// this is a mock version of the Redis API,// emulating Redis if it is not available locallyvar notRedis = { state: {}, topics: {}, publish: function(topic, msg, cb) { if (!this.topics[topic]) { this.topics[topic] = { subscribers: [] }; } var t=this.topics[topic]; for (var i=0; i<t.subscribers.length; i++) { var s=t.subscribers[i]; if (s.handler) { s.handler(topic, msg); } } if (cb) cb(null); }, subscribe: function(topics, cb) { var handle = { handler: null, on: function(evt, cb) { if (evt == "message") { this.handler = cb; } } }; for (var i=0; i<topics.length; i++) { var topic = topics[i]; if (!this.topics[topic]) { this.topics[topic] = { subscribers: [] }; } var t=this.topics[topic]; t.subscribers.push(handle); } cb(null, topics.length); return handle; }, get: function(key, cb) { cb(null, this.state[key]); return this.state[key]; }, set: function(key, val, cb) { this.state[key] = val; cb(); }, del: function(key, cb) { delete this.state[key]; cb(null); }, sadd: function(key, skey, cb) { if (!this.state[key]) this.state[key] = {}; this.state[key][skey] = true;
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
cb(null);
},
srem: function(key, skey, cb) {
if (this.state[key]) {
delete this.state[key][skey];
}
cb(null);
},
smembers: function(key, cb) {
cb(null, Object.keys(this.state[key]));
},
incr: function(key, cb) {
if (!this.state[key]) this.state[key] = 0;
this.state[key]++;
cb(null, this.state[key]);
},
expire: function() {
},
}
module.exports = {
connectRedis: function() {
if (config.get("redis_mock")) {
this.connection = notRedis;
} else {
const redisHost = process.env.REDIS_PORT_6379_TCP_ADDR || 'sync';
this.connection = new RedisConnection(6379, redisHost);
}
},
getConnection: function() {
this.connectRedis();
return this.connection;
},
sendMessage: function(action, model, attributes, channelId) {
const data = JSON.stringify({
channel_id: channelId,
action: action,
model: model,
object: attributes
});
this.connection.publish('updates', data);
},
logIp: function(ip, cb) {
this.connection.incr("ip_"+ ip, (err, socketCounter) => {
cb();
});
},
rateLimit: function(namespace, ip, cb) {
const key = "limit_"+ namespace + "_"+ ip;
const redis = this.connection;
redis.get(key, (err, count)=> {
if (count) {
if(count < 150) {
redis.incr(key, (err, newCount) => {
if (newCount==150) {
// limit
}
cb(true);
});
} else {
cb(false);
}
} else {
redis.set(key, 1, (err, count) => {
redis.expire(key, 1800, (err, expResult) => {
cb(true);
});
});
}
});
},
isOnlineInSpace: function(user, space, cb) {
this.connection.smembers("space_" + space._id.toString(), function(err, list) {
if (err) cb(err);
else {
var users = list.filter(function(item) {
return user._id.toString() === item;
});
cb(null, (users.length > 0));
}
});
}
};
return module.exports;