@dazejs/framework/dist/http/session/index.js

Daze.js - A powerful web framework for Node.js

"use strict";
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    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
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    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
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    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Session = void 0;
const uuid = __importStar(require("uuid"));
const container_1 = require("../../container");
const symbols = __importStar(require("../../symbol"));
const utils_1 = require("../../utils");
const defaultOpts = {
    store: 'cookie',
    key: 'dazejs:sess',
    httpOnly: true,
    signed: false,
    autoCommit: true,
};
const ONE_DAY = 86400000;
const EXTRA_STROES = new Set([
    'redis',
]);
class Session {
    constructor(request, options = {}) {
        this.app = container_1.Container.get('app');
        this.session = {};
        this.id = '';
        this.request = request;
        this.options = Object.assign(defaultOpts, this.app.get('config').get('session', {}), options);
        this.initializeStore();
    }
    async initializeStore() {
        var _a;
        if (!this.options.store || this.options.store === 'cookie' || !EXTRA_STROES.has(this.options.store))
            return;
        const Store = (await (_a = `./stores/${this.options.store.toLowerCase()}`, Promise.resolve().then(() => __importStar(require(_a))))).default;
        this.store = new Store(this.app);
    }
    async loadSession() {
        await this.initializeStore();
        if (this.store) {
            await this.loadFromExtraStore();
            return;
        }
        this.loadFromCookieStore();
    }
    loadFromCookieStore() {
        const cookie = this.request.cookies.get(this.options.key, this.options);
        if (!cookie) {
            return this.generate();
        }
        let json = {};
        try {
            json = utils_1.Str.decodeBASE64(cookie);
        }
        catch (err) {
            return this.generate();
        }
        if (!this.verify(json)) {
            return this.generate();
        }
        return this.generate(json);
    }
    async loadFromExtraStore() {
        this.id = this.request.cookies.get(this.options.key, this.options) || this.generateSessionId();
        const json = await this.store.get(this.id, this.options.maxAge);
        if (!this.verify(json)) {
            return this.generate();
        }
        return this.generate(json);
    }
    verify(session) {
        if (!session || typeof session !== 'object')
            return false;
        if (session._expire && session._expire < Date.now())
            return false;
        return true;
    }
    generate(data = {}) {
        if (!this.session)
            this.session = {};
        const maxAge = this.options.maxAge ? this.options.maxAge : ONE_DAY;
        this.session = data;
        this.session._expire = maxAge + Date.now();
        this.session._maxAge = maxAge;
        return this.session;
    }
    generateSessionId() {
        return uuid.v4();
    }
    get(key, defaultVal) {
        if (!key)
            return this.session;
        return this.session[key] || defaultVal;
    }
    set(key, value) {
        if (!this.session)
            this.session = {};
        this.session[key] = value;
        return this;
    }
    remove(key) {
        if (!this.session)
            this.session = {};
        delete this.session[key];
        return this;
    }
    push(key, value) {
        const arr = this.get(key, []);
        arr.push(value);
        this.set(key, arr);
        return this;
    }
    flash(key, value) {
        this.set(key, value);
        this.push(symbols.SESSION.NEW_FLASHS, key);
        this.updateOldFlashSession(key);
    }
    ageFlashSession() {
        const oldFlashs = this.get(symbols.SESSION.OLD_FLASHS, []);
        for (const old of oldFlashs) {
            this.remove(old);
        }
        this.set(symbols.SESSION.OLD_FLASHS, this.get(symbols.SESSION.NEW_FLASHS, []));
        this.set(symbols.SESSION.NEW_FLASHS, []);
    }
    updateOldFlashSession(...keys) {
        const oldFlashs = this.get(symbols.SESSION.OLD_FLASHS, []);
        const _keys = oldFlashs.filter((key) => !keys.includes(key));
        this.set(symbols.SESSION.OLD_FLASHS, _keys);
        return this;
    }
    async commit() {
        this.ageFlashSession();
        if (!this.store) {
            const encodedSession = utils_1.Str.encodeBASE64(this.session);
            this.request.cookies.set(this.options.key, encodedSession, this.options);
        }
        else {
            await this.store.set(this.id, this.session);
            this.request.cookies.set(this.options.key, this.id, this.options);
        }
    }
    async autoCommit() {
        if (this.options.autoCommit === true) {
            await this.commit();
        }
    }
}
exports.Session = Session;
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