80 lines
1.8 KiB
JavaScript
80 lines
1.8 KiB
JavaScript
|
var EventEmitter = require('events').EventEmitter;
|
||
|
|
var sys = require('sys');
|
||
|
|
var net = require('net');
|
||
|
|
var NUL = '\0';
|
||
|
|
|
||
|
|
var chars = Buffer('R','utf8');
|
||
|
|
var UTF8 = {
|
||
|
|
R: chars[0]
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
var Client = function(config) {
|
||
|
|
EventEmitter.call(this);
|
||
|
|
config = config || {};
|
||
|
|
this.user = config.user;
|
||
|
|
this.database = config.database;
|
||
|
|
this.port = config.port || 5432;
|
||
|
|
};
|
||
|
|
sys.inherits(Client, EventEmitter);
|
||
|
|
|
||
|
|
Client.prototype.connect = function() {
|
||
|
|
var con = net.createConnection(this.port);
|
||
|
|
var self = this;
|
||
|
|
con.on('connect', function() {
|
||
|
|
|
||
|
|
var data = ['user',self.user,'database', self.database,NUL].join(NUL);
|
||
|
|
var dataBuffer = Buffer(data);
|
||
|
|
var fullBuffer = Buffer(8 + dataBuffer.length);
|
||
|
|
fullBuffer[0] = fullBuffer.length >>> 24;
|
||
|
|
fullBuffer[1] = fullBuffer.length >>> 16;
|
||
|
|
fullBuffer[2] = fullBuffer.length >>> 8;
|
||
|
|
fullBuffer[3] = fullBuffer.length >>> 0;
|
||
|
|
fullBuffer[4] = 0;
|
||
|
|
fullBuffer[5] = 3;
|
||
|
|
fullBuffer[6] = 0;
|
||
|
|
fullBuffer[7] = 0;
|
||
|
|
fullBuffer.write(data,8);
|
||
|
|
console.log(fullBuffer);
|
||
|
|
con.write(fullBuffer);
|
||
|
|
});
|
||
|
|
con.on('data', function(data) {
|
||
|
|
console.log('data!');
|
||
|
|
console.log(data);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
var Parser = {
|
||
|
|
parse: function(buffer, offset) {
|
||
|
|
offset = offset || 0;
|
||
|
|
switch(buffer[offset]) {
|
||
|
|
case UTF8.R:
|
||
|
|
return Parser.parseR(buffer, offset);
|
||
|
|
default:
|
||
|
|
throw "Unsupported message id"
|
||
|
|
}
|
||
|
|
},
|
||
|
|
parseR: function(buffer, offset) {
|
||
|
|
var type = buffer[offset++];
|
||
|
|
var length = ((buffer[offset++] << 24) +
|
||
|
|
(buffer[offset++] << 16) +
|
||
|
|
(buffer[offset++] << 8) +
|
||
|
|
buffer[offset++]);
|
||
|
|
if(length == 8) {
|
||
|
|
return {
|
||
|
|
name: 'AuthenticationOk',
|
||
|
|
id: 'R',
|
||
|
|
length: length
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
module.exports = {
|
||
|
|
Client: Client,
|
||
|
|
Parser: Parser
|
||
|
|
};
|