nxkit/session.js

This is a collection of tools, independent of any other libraries

"use strict";
/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2015, xuewen.chu
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of xuewen.chu nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL xuewen.chu BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ***** END LICENSE BLOCK ***** */
Object.defineProperty(exports, "__esModule", { value: true });
const util_1 = require("./util");
const cookie_1 = require("./cookie");
var HttpService;
const SESSIONS = {};
const SESSION_TOKEN_NAME = '__SESSION_TOKEN';
function deleteSession(token) {
    var data = SESSIONS[token];
    if (data) {
        if (data.ws > 0) {
            data.timeoutid = deleteSession.setTimeout(data.expired, token);
        }
        else {
            delete SESSIONS[token];
        }
    }
}
function getData(self) {
    var token = self.token;
    if (!token) {
        token = util_1.default.id;
        var service = self.m_service;
        if (service instanceof HttpService) // http service
            service.cookie.set(SESSION_TOKEN_NAME, token);
        else //ws service
            throw new Error('Can not set the session, session must first be activated in HttpService');
        self.token = token;
    }
    var expired = self.m_service.server.session * 6e4;
    var value = SESSIONS[token];
    if (!value) {
        SESSIONS[token] = value = {
            timeoutid: deleteSession.setTimeout(expired, token),
            expired: expired,
            data: {},
            ws: 0,
        };
    }
    return value;
}
/**
 * @class Session
 */
class Session {
    /**
     * constructor
     * @param {Service} service HttpService or SocketService
     * @constructor
     */
    constructor(service) {
        /**
         * Conversation token
         * @type {Number}
         */
        this.token = 0;
        this.m_service = service;
        if (!HttpService) {
            HttpService = require('./http_service').HttpService;
        }
        var is_http = service instanceof HttpService;
        var cookie = is_http ? service.cookie : new cookie_1.ReadCookie(service.request);
        var token = cookie.get(SESSION_TOKEN_NAME);
        if (!token)
            return;
        this.token = token;
        var data = SESSIONS[token];
        if (data) {
            clearTimeout(data.timeoutid);
            data.timeoutid = deleteSession.setTimeout(service.server.session * 6e4, token);
        }
        if (is_http) // socket service
            return;
        var conv = service.conv;
        conv.onOpen.on(() => {
            var data = getData(this);
            data.ws++;
            conv.onClose.on(() => data.ws--);
        });
    }
    /**
     * get session value by name
     * @param  {String} name session name
     * @return {String}
     */
    get(name) {
        var value = SESSIONS[this.token];
        if (value && name in value.data) {
            return value.data[name];
        }
        return null;
    }
    /**
     * set session value
     * @param {String} name
     * @param {String} value
     */
    set(name, value) {
        getData(this).data[name] = value;
    }
    /**
     * delete session
     * @param {String} name
     */
    del(name) {
        var token = this.token;
        if (token) {
            var value = SESSIONS[token];
            if (value)
                delete value.data[name];
        }
    }
    /**
     * get all session
     * @return {Object}
     */
    getAll() {
        return getData(this).data;
    }
    /**
     * delete all session
     */
    delAll() {
        var token = this.token;
        if (token) {
            var value = SESSIONS[token];
            if (value)
                value.data = {};
        }
    }
}
exports.Session = Session;