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session.js
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session.js
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'use strict';
const Async = require('async');
const Bcrypt = require('bcrypt');
const Joi = require('joi');
const MongoModels = require('mongo-models');
const Uuid = require('uuid');
class Session extends MongoModels {
static generateKeyHash(callback) {
const key = Uuid.v4();
Async.auto({
salt: function (done) {
Bcrypt.genSalt(10, done);
},
hash: ['salt', function (results, done) {
Bcrypt.hash(key, results.salt, done);
}]
}, (err, results) => {
if (err) {
return callback(err);
}
callback(null, {
key,
hash: results.hash
});
});
}
static create(userId, callback) {
const self = this;
Async.auto({
keyHash: this.generateKeyHash.bind(this),
newSession: ['keyHash', function (results, done) {
const document = {
userId,
key: results.keyHash.hash,
time: new Date()
};
self.insertOne(document, done);
}],
clean: ['newSession', function (results, done) {
const query = {
userId,
key: { $ne: results.keyHash.hash }
};
self.deleteOne(query, done);
}]
}, (err, results) => {
if (err) {
return callback(err);
}
results.newSession[0].key = results.keyHash.key;
callback(null, results.newSession[0]);
});
}
static findByCredentials(id, key, callback) {
const self = this;
Async.auto({
session: function (done) {
self.findById(id, done);
},
keyMatch: ['session', function (results, done) {
if (!results.session) {
return done(null, false);
}
const source = results.session.key;
Bcrypt.compare(key, source, done);
}]
}, (err, results) => {
if (err) {
return callback(err);
}
if (results.keyMatch) {
return callback(null, results.session);
}
callback();
});
}
}
Session.collection = 'sessions';
Session.schema = Joi.object({
_id: Joi.object(),
userId: Joi.string().required(),
key: Joi.string().required(),
time: Joi.date().required()
});
Session.indexes = [
{ key: { userId: 1 } }
];
module.exports = Session;