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rate_policy.js
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rate_policy.js
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var util = require("util");
var events = require("events")
var config = require("../../config")
var config_data = config.get('outbound_limit.json', 'json');
var delivery_concurrency = 0;
var conn_pool = {};
var policies = {};
function get_policy(domain) {
if (!policies[domain]) {
policies[domain] = new Policy(domain);
}
return policies[domain];
}
function get_ISPConfig(dom, name) {
var data = config_data[dom];
if (!data)
data = config_data['default'];
return data[name];
}
function Policy(dom) {
this.domain = dom;
// this.frozen_ts = -128000;
var data = config_data[dom];
if (!data)
data = config_data['default'];
this.cur_conn = 0;
this.conn_limit = data['conn_limit'];
this.micro_deliveries = 0;
this.micro_limit = data['micro_limit'];
this.tiny_deliveries = 0;
this.tiny_limit = data['tiny_limit'];
this.medium_deliveries = 0;
this.medium_limit = data['medium_limit'];
this.big_deliveries = 0;
this.big_limit = data['big_limit'];
this.MICRO = data['micro'];
this.TINY = data['tiny'];
this.MEDIUM = data['medium'];
this.BIG = data['big'];
// initialize three timestamps
this.tiny_timestamp = this.medium_timestamp
= this.big_timestamp = new Date().getTime();
}
Policy.prototype.exceed_limit = function()
{
// check if we are over connection limit
if (this.cur_conn > this.conn_limit)
return true;
var cur_time = new Date().getTime();
// if (cur_time - this.frozen_ts < 64 * 1000)
// return true;
var exceed_micro_limit = false,
exceed_tiny_limit = false,
exceed_medium_limit = false,
exceed_big_limit = false;
// check if we are over daily limit
if (cur_time - this.big_timestamp < this.BIG) {
if (this.big_deliveries >= this.big_limit)
exceed_big_limit = true;
}
else {
this.big_timestamp = cur_time;
this.big_deliveries = 0;
this.conn_tries = 0;
}
if (exceed_big_limit)
return true;
// check if we are over hourly limit
if (cur_time - this.medium_timestamp < this.MEDIUM) {
if (this.medium_deliveries > this.medium_limit)
exceed_medium_limit = true;
}
else {
this.medium_timestamp = cur_time;
this.medium_deliveries = 0;
}
if (exceed_medium_limit)
return true;
// check if we are over minute limit
if (cur_time - this.tiny_timestamp < this.TINY) {
if (this.tiny_deliveries >= this.tiny_limit)
exceed_tiny_limit = true;
}
else {
this.tiny_timestamp = cur_time;
this.tiny_deliveries = 0;
}
if (exceed_tiny_limit)
return true;
if (cur_time - this.micro_timestamp < this.MICRO) {
if (this.micro_deliveries >= this.micro_limit)
exceed_micro_limit = true;
}
else {
this.micro_timestamp = cur_time;
this.micro_deliveries = 0;
}
if (exceed_micro_limit)
return true;
return false;
}
// Policy.prototype.freeze = function() {
// this.frozen_ts = new Date().getTime();
// }
Policy.prototype.dispose = function(delivered, not_send) {
delivery_concurrency--;
this.cur_conn--;
}
Policy.prototype.prepose = function() {
delivery_concurrency++;
this.cur_conn++;
this.micro_deliveries++;
this.tiny_deliveries++;
this.medium_deliveries++;
this.big_deliveries++;
}
exports.get_policy = get_policy;
exports.policies = policies;
exports.get_ISPConfig = get_ISPConfig;
exports.delivery_concurrency = delivery_concurrency;
exports.conn_pool = conn_pool;
// exports.tracked_deliveries = tracked_deliveries;