merge of features from hosted branch (#7)

major merge of features from the hosted branch that was created temporarily during the initial launch of jambonz.org

lib/routes/api/sip-gateways.js

@@ -1,8 +1,53 @@
 const router = require('express').Router();
 const SipGateway = require('../../models/sip-gateway');
+const {DbErrorBadRequest, DbErrorUnprocessableRequest} = require('../../utils/errors');
 const decorate = require('./decorate');
-const preconditions = {};
+const sysError = require('../error');
 
-decorate(router, SipGateway, ['*'], preconditions);
+const validate = async(req, sid) => {
+  const {lookupCarrierBySid, lookupSipGatewayBySid} = req.app.locals;
+  let voip_carrier_sid;
+
+  if (sid) {
+    const gateway = await lookupSipGatewayBySid(sid);
+    if (!gateway) throw new DbErrorBadRequest('invalid sip_gateway_sid');
+    voip_carrier_sid = gateway.voip_carrier_sid;
+  }
+  else {
+    voip_carrier_sid = req.body.voip_carrier_sid;
+    if (!voip_carrier_sid) throw new DbErrorBadRequest('missing voip_carrier_sid');
+  }
+  if (req.hasAccountAuth) {
+    const carrier = await lookupCarrierBySid(voip_carrier_sid);
+    if (!carrier) throw new DbErrorBadRequest('invalid voip_carrier_sid');
+    if (carrier.account_sid !== req.user.account_sid) {
+      throw new DbErrorUnprocessableRequest('user can not add gateway for voip_carrier belonging to other account');
+    }
+  }
+};
+
+const preconditions = {
+  'add': validate,
+  'update': validate,
+  'delete': validate
+};
+
+decorate(router, SipGateway, ['add', 'retrieve', 'update', 'delete'], preconditions);
+
+/* list */
+router.get('/', async(req, res) => {
+  const logger = req.app.locals.logger;
+  const voip_carrier_sid = req.query.voip_carrier_sid;
+  try {
+    if (!voip_carrier_sid) {
+      logger.info('GET /SipGateways missing voip_carrier_sid param');
+      return res.status(400).json({message: 'missing voip_carrier_sid query param'});
+    }
+    const results = await SipGateway.retrieveForVoipCarrier(voip_carrier_sid);
+    res.status(200).json(results);
+  } catch (err) {
+    sysError(logger, res, err);
+  }
+});
 
 module.exports = router;