@owstack/wallet-service/base-service/lib/model/session.js

A service for multisignature HD wallets

const owsCommon = require('@owstack/ows-common');
const Uuid = require('uuid');
const lodash = owsCommon.deps.lodash;

const FIELDS = [
    'version',
    'createdOn',
    'updatedOn',
    'id',
    'copayerId',
    'walletId'
];

class Session {
    constructor(context, opts) {
    // Context defines the coin network and is set by the implementing service in
    // order to instance this base service; e.g., btc-service.
        context.inject(this);

        opts = opts || {};

        if (opts.fromObj) {
            return;
        }

        const now = Math.floor(Date.now() / 1000);

        this.id = Uuid.v4();
        this.version = 1;
        this.createdOn = now;
        this.updatedOn = now;
        this.copayerId = opts.copayerId;
        this.walletId = opts.walletId;
    }
}

Session.fromObj = function (context, obj) {
    const x = new Session(context, {fromObj: true});

    lodash.each(FIELDS, function (k) {
        x[k] = obj[k];
    });

    return x;
};

Session.prototype.toObject = function () {
    const self = this;

    const x = {};
    lodash.each(FIELDS, function (k) {
        x[k] = self[k];
    });
    return x;
};

Session.prototype.isValid = function () {
    const now = Math.floor(Date.now() / 1000);
    return (now - this.updatedOn) <= this.ctx.Defaults.SESSION_EXPIRATION;
};

Session.prototype.touch = function () {
    const now = Math.floor(Date.now() / 1000);
    this.updatedOn = now;
};

module.exports = Session;