121 lines
2.7 KiB
JavaScript
121 lines
2.7 KiB
JavaScript
var sys = require('sys');
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var net = require('net');
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var crypto = require('crypto');
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var EventEmitter = require('events').EventEmitter;
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var utils = require(__dirname + '/utils');
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var BufferList = require(__dirname + '/buffer-list');
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var Connection = require(__dirname + '/connection');
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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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this.host = config.host;
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this.queryQueue = [];
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this.stream = config.stream || new net.Stream();
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this.connection = new Connection({stream: this.stream});
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this.queryQueue = [];
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this.password = config.password || '';
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this.lastBuffer = false;
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this.lastOffset = 0;
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this.buffer = null;
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this.offset = null;
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this.encoding = 'utf8';
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};
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sys.inherits(Client, EventEmitter);
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var p = Client.prototype;
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p.connect = function() {
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var self = this;
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var con = this.connection;
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con.connect(this.port, this.host);
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con.on('connect', function() {
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con.startupMessage({
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user: self.user,
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database: self.database
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});
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});
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con.on('authenticationCleartextPassword', function() {
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con.passwordMessage(self.password);
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});
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con.on('authenticationMD5Password', function(msg) {
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var inner = Client.md5(self.password + self.user);
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var outer = Client.md5(inner + msg.salt.toString('binary'));
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var md5password = "md5" + outer;
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con.passwordMessage(md5password);
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});
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};
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Client.md5 = function(string) {
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return crypto.createHash('md5').update(string).digest('hex');
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};
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var intParser = {
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fromDbValue: parseInt
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};
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var floatParser = {
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fromDbValue: parseFloat
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};
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var timeParser = {
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fromDbValue: function(isoTime) {
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var when = new Date();
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var split = isoTime.split(':');
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when.setHours(split[0]);
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when.setMinutes(split[1]);
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when.setSeconds(split[2].split('-') [0]);
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return when;
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}
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};
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var dateParser = {
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fromDbValue: function(isoDate) {
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return Date.parse(isoDate);
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}
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};
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Client.dataTypes = {
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20: intParser,
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21: intParser,
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23: intParser,
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26: intParser,
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1700: floatParser,
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700: floatParser,
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701: floatParser,
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1083: timeParser,
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1266: timeParser,
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1114: dateParser,
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1184: dateParser
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};
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p.processRowDescription = function(description) {
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this.fields = description.fields;
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};
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p.processDataRow = function(dataRow) {
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var row = dataRow.fields;
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var fields = this.fields || [];
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var field, dataType;
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for(var i = 0, len = row.length; i < len; i++) {
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field = fields[i] || 0
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var dataType = Client.dataTypes[field.dataTypeID];
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if(dataType) {
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row[i] = dataType.fromDbValue(row[i]);
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}
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}
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this.emit('row',row);
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};
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//end parsing methods
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module.exports = Client;
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