Feat: password settings for account (#65)

* feat: password settings for account

* feat: password settings for account

* fix: review comments

* fix: review comments

* fix: review comments

* return empty json

* fix: after review

lib/models/password-settings.js

@@ -0,0 +1,70 @@
+const {promisePool} = require('../db');
+
+class PasswordSettings {
+
+  /**
+   * Retrieve object from database
+   */
+  static async retrieve() {
+    const [r] = await promisePool.execute(`SELECT * FROM ${this.table}`);
+    return r;
+  }
+
+  /**
+  * Update object into the database
+  */
+  static async update(obj) {
+    let sql = `UPDATE ${this.table} SET `;
+    const values = [];
+    const keys = Object.keys(obj);
+    this.fields.forEach(({name}) => {
+      if (keys.includes(name)) {
+        sql = sql + `${name} = ?,`;
+        values.push(obj[name]);
+      }
+    });
+    if (values.length) {
+      sql = sql.slice(0, -1);
+      await promisePool.execute(sql, values);
+    }
+  }
+
+  /**
+     * insert object into the database
+     */
+  static async make(obj) {
+    let params = '', marks = '';
+    const values = [];
+    const keys = Object.keys(obj);
+    this.fields.forEach(({name}) => {
+      if (keys.includes(name)) {
+        params = params + `${name},`;
+        marks = marks + '?,';
+        values.push(obj[name]);
+      }
+    });
+    if (values.length) {
+      params = `(${params.slice(0, -1)})`;
+      marks = `values(${marks.slice(0, -1)})`;
+      return await promisePool.execute(`INSERT into ${this.table} ${params} ${marks}`, values);
+    }
+  }
+}
+
+
+PasswordSettings.table = 'password_settings';
+PasswordSettings.fields = [
+  {
+    name: 'min_password_length',
+    type: 'number'
+  },
+  {
+    name: 'require_digit',
+    type: 'number'
+  },
+  {
+    name: 'require_special_character',
+    type: 'number'
+  }
+];
+module.exports = PasswordSettings;

lib/routes/api/index.js

@@ -44,6 +44,7 @@ api.use('/Subscriptions', require('./subscriptions'));
 api.use('/Invoices', require('./invoices'));
 api.use('/InviteCodes', require('./invite-codes'));
 api.use('/PredefinedCarriers', require('./predefined-carriers'));
+api.use('/PasswordSettings', isAdminScope, require('./password-settings'));
 
 // messaging
 api.use('/Smpps', require('./smpps'));   // our smpp server info

lib/routes/api/password-settings.js

@@ -0,0 +1,42 @@
+const router = require('express').Router();
+const sysError = require('../error');
+const PasswordSettings = require('../../models/password-settings');
+const { DbErrorBadRequest } = require('../../utils/errors');
+
+const validate = (obj) => {
+  if (obj.min_password_length && (
+    obj.min_password_length < 8 ||
+    obj.min_password_length > 20
+  )) {
+    throw new DbErrorBadRequest('invalid min_password_length property: should be between 8-20');
+  }
+};
+
+router.post('/', async(req, res) => {
+  const logger = req.app.locals.logger;
+  try {
+    validate(req.body);
+    const [existing] = (await PasswordSettings.retrieve() || []);
+    if (existing) {
+      await PasswordSettings.update(req.body);
+    } else {
+      await PasswordSettings.make(req.body);
+    }
+    res.status(201).json({});
+  }
+  catch (err) {
+    sysError(logger, res, err);
+  }
+});
+
+router.get('/', async(req, res) => {
+  const logger = req.app.locals.logger;
+  try {
+    const [results] = (await PasswordSettings.retrieve() || []);
+    return res.status(200).json(results || {min_password_length: 8});
+  }
+  catch (err) {
+    sysError(logger, res, err);
+  }
+});
+module.exports = router;