chore(): rename website/src -> website/server and website/public -> website/client (#7199)

website/server/middlewares/api-v3/errorHandler.js

@@ -0,0 +1,83 @@
+// The error handler middleware that handles all errors
+// and respond to the client
+import logger from '../../libs/api-v3/logger';
+import {
+  CustomError,
+  BadRequest,
+  InternalServerError,
+} from '../../libs/api-v3/errors';
+import { map } from 'lodash';
+
+module.exports = function errorHandler (err, req, res, next) { // eslint-disable-line no-unused-vars
+  logger.error(err, {
+    originalUrl: req.originalUrl,
+    headers: req.headers,
+    body: req.body,
+  });
+
+  // In case of a CustomError class, use it's data
+  // Otherwise try to identify the type of error (mongoose validation, mongodb unique, ...)
+  // If we can't identify it, respond with a generic 500 error
+  let responseErr = err instanceof CustomError ? err : null;
+
+  // Handle errors created with 'http-errors' or similar that have a status/statusCode property
+  if (err.statusCode && typeof err.statusCode === 'number') {
+    responseErr = new CustomError();
+    responseErr.httpCode = err.statusCode;
+    responseErr.name = err.name;
+    responseErr.message = err.message;
+  }
+
+  // Handle errors by express-validator
+  if (Array.isArray(err) && err[0].param && err[0].msg) {
+    responseErr = new BadRequest(res.t('invalidReqParams'));
+    responseErr.errors = err.map((paramErr) => {
+      return {
+        message: paramErr.msg,
+        param: paramErr.param,
+        value: paramErr.value,
+      };
+    });
+  }
+
+  // Handle mongoose validation errors
+  if (err.name === 'ValidationError') {
+    responseErr = new BadRequest(err.message); // TODO standard message? translate?
+    responseErr.errors = map(err.errors, (mongooseErr) => {
+      return {
+        message: mongooseErr.message,
+        path: mongooseErr.path,
+        value: mongooseErr.value,
+      };
+    });
+  }
+
+  // Handle Stripe Card errors errors (can be safely shown to the users)
+  // https://stripe.com/docs/api/node#errors
+  if (err.type === 'StripeCardError') {
+    responseErr = new BadRequest(err.message);
+  }
+
+  if (!responseErr || responseErr.httpCode >= 500) {
+    // Try to identify the error...
+    // ...
+    // Otherwise create an InternalServerError and use it
+    // we don't want to leak anything, just a generic error message
+    // Use it also in case of identified errors but with httpCode === 500
+    responseErr = new InternalServerError();
+  }
+
+  let jsonRes = {
+    success: false,
+    error: responseErr.name,
+    message: responseErr.message,
+  };
+
+  if (responseErr.errors) {
+    jsonRes.errors = responseErr.errors;
+  }
+
+  // In some occasions like when invalid JSON is supplied `res.respond` might be not yet avalaible,
+  // in this case we use the standard res.status(...).json(...)
+  return res.status(responseErr.httpCode).json(jsonRes);
+};