totally thrashing at this point, but moving forward
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cf637b08b7
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79
lib/index.js
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79
lib/index.js
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var EventEmitter = require('events').EventEmitter;
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var sys = require('sys');
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var net = require('net');
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var NUL = '\0';
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var chars = Buffer('R','utf8');
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var UTF8 = {
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R: chars[0]
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};
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var Client = function(config) {
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EventEmitter.call(this);
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config = config || {};
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this.user = config.user;
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this.database = config.database;
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this.port = config.port || 5432;
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};
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sys.inherits(Client, EventEmitter);
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Client.prototype.connect = function() {
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var con = net.createConnection(this.port);
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var self = this;
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con.on('connect', function() {
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var data = ['user',self.user,'database', self.database,NUL].join(NUL);
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var dataBuffer = Buffer(data);
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var fullBuffer = Buffer(8 + dataBuffer.length);
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fullBuffer[0] = fullBuffer.length >>> 24;
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fullBuffer[1] = fullBuffer.length >>> 16;
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fullBuffer[2] = fullBuffer.length >>> 8;
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fullBuffer[3] = fullBuffer.length >>> 0;
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fullBuffer[4] = 0;
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fullBuffer[5] = 3;
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fullBuffer[6] = 0;
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fullBuffer[7] = 0;
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fullBuffer.write(data,8);
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console.log(fullBuffer);
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con.write(fullBuffer);
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});
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con.on('data', function(data) {
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console.log('data!');
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console.log(data);
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});
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};
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var Parser = {
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parse: function(buffer, offset) {
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offset = offset || 0;
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switch(buffer[offset]) {
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case UTF8.R:
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return Parser.parseR(buffer, offset);
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default:
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throw "Unsupported message id"
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}
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},
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parseR: function(buffer, offset) {
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var type = buffer[offset++];
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var length = ((buffer[offset++] << 24) +
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(buffer[offset++] << 16) +
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(buffer[offset++] << 8) +
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buffer[offset++]);
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if(length == 8) {
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return {
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name: 'AuthenticationOk',
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id: 'R',
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length: length
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}
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}
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}
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};
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module.exports = {
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Client: Client,
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Parser: Parser
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};
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26
test/api-tests.js
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26
test/api-tests.js
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require(__dirname+"/test-helper");
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//defaults
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var client = new Client();
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assert.equal(client.user, null);
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assert.equal(client.database, null);
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assert.equal(client.port, 5432);
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var client = new Client({
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user: 'brian',
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database: 'pgjstest',
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port: 321
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});
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assert.equal(client.user, 'brian');
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assert.equal(client.database, 'pgjstest');
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assert.equal(client.port, 321);
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client.port = 5432;
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client.connect(function() {
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console.log('connected');
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client.query('select count(*) from items',function(result) {
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console.log('ran query');
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});
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});
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12
test/parser-tests.js
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12
test/parser-tests.js
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require(__dirname+'/test-helper');
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test('Parser on single messages', function() {
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test('parses AuthenticationOk message', function() {
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var result = Parser.parse(Buffer([0x52, 00, 00, 00, 08, 00, 00, 00, 00]));
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assert.equal(result.name, 'AuthenticationOk');
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assert.equal(result.id, 'R');
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assert.equal(result.length, 8);
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});
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});
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15
test/test-helper.js
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15
test/test-helper.js
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sys = require('sys');
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assert = require('assert');
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Client = require(__dirname+"/../lib/").Client;
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Parser = require(__dirname+"/../lib/").Parser;
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test = function(name, action) {
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for(var i = 0; i < test.tabout; i++) {
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name = ' ' + name;
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}
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test.tabout += 2;
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console.log(name);
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action();
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test.tabout -= 2;
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};
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test.tabout = 0;
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