feat(v3.2.3): new config validation

package.json

@@ -1,6 +1,6 @@
 {
   "name": "zip3",
-  "version": "3.2.2",
+  "version": "3.2.3",
   "scripts": {
     "prepare": "husky install",
     "dev": "NODE_ENV=development node server",

server/index.js

@@ -34,8 +34,7 @@ function shouldUseYarn() {
 
 (async () => {
   try {
-    const config = readConfig();
-    await validateConfig(config);
+    const config = await validateConfig(readConfig());
 
     const data = await prismaRun(config.core.database_url, ['migrate', 'status'], true);
     if (data.includes('Following migration have not yet been applied:')) {

server/validateConfig.js

@@ -1,45 +1,29 @@
 const Logger = require('../src/lib/logger');
+const yup = require('yup');
 
-function dot(str, obj) {
-  return str.split('.').reduce((a,b) => a[b], obj);
-}
 
-const path = (path, type) => ({ path, type });
+const validator = yup.object({
+  core: yup.object({
+    secure: yup.bool().default(false),
+    secret: yup.string().min(8).required(),
+    host: yup.string().default('0.0.0.0'),
+    port: yup.number().default(3000),
+    database_url: yup.string().required(),
+  }).required(),
+  uploader: yup.object({
+    route: yup.string().required(),
+    length: yup.number().default(6),
+    directory: yup.string().required(),
+    admin_limit: yup.number().default(104900000),
+    user_limit: yup.number().default(104900000),
+    disabled_extensions: yup.array().default([]),
+  }).required(),
+});
 
 module.exports = async config => {
-  const paths = [
-    path('core.secure', 'boolean'),
-    path('core.secret', 'string'),
-    path('core.host', 'string'),
-    path('core.port', 'number'),
-    path('core.database_url', 'string'),
-    path('uploader.route', 'string'),
-    path('uploader.length', 'number'),
-    path('uploader.directory', 'string'),
-    path('uploader.admin_limit', 'number'),
-    path('uploader.user_limit', 'number'),
-    path('uploader.disabled_extentions', 'object'),
-  ];
-
-  let errors = 0;
-
-  for (let i = 0, L = paths.length; i !== L; ++i) {
-    const path = paths[i];
-    const value = dot(path.path, config);
-    if (value === undefined) {
-      Logger.get('config').error(`there was no ${path.path} in config which was required`);
-      ++errors;
-    }
-
-    const type = typeof value;
-    if (value !== undefined && type !== path.type) {
-      Logger.get('config').error(`expected ${path.type} on ${path.path}, but got ${type}`);
-      ++errors;
-    }
-  }
-
-  if (errors !== 0) {
-    Logger.get('config').error(`exiting due to ${errors} errors`);
-    process.exit(1);
-  }  
+  try {
+    return await validator.validate(config, { abortEarly: false });
+  } catch (e) {
+    throw `${e.errors.length} errors occured\n${e.errors.map(x => '\t' + x).join('\n')}`;
+  } 
 };

src/lib/logger.js

@@ -19,7 +19,7 @@ class Logger {
   }
 
   error(error) {
-    console.log(this.formatMessage('ERROR', this.name, error.toString()));
+    console.log(this.formatMessage('ERROR', this.name, error.stack ?? error));
   }
 
   formatMessage(level, name, message) {

src/lib/readConfig.js

@@ -2,7 +2,7 @@ const { existsSync, readFileSync } = require('fs');
 const { join } = require('path');
 const Logger = require('./logger');
 
-const e = (val, type, fn, required = true) => ({ val, type, fn, required });
+const e = (val, type, fn) => ({ val, type, fn });
 
 const envValues = [
   e('SECURE', 'boolean', (c, v) => c.core.secure = v),
@@ -15,7 +15,7 @@ const envValues = [
   e('UPLOADER_DIRECTORY', 'string', (c, v) => c.uploader.directory = v),
   e('UPLOADER_ADMIN_LIMIT', 'number', (c, v) => c.uploader.admin_limit = v),
   e('UPLOADER_USER_LIMIT', 'number', (c, v) => c.uploader.user_limit = v),
-  e('UPLOADER_DISABLED_EXTS', 'array', (c, v) => v ? c.uploader.disabled_extentions = v : c.uploader.disabled_extentions = [], false),
+  e('UPLOADER_DISABLED_EXTS', 'array', (c, v) => v ? c.uploader.disabled_extentions = v : c.uploader.disabled_extentions = []),
 ];
 
 module.exports = () => {
@@ -54,21 +54,16 @@ function tryReadEnv() {
     const envValue = envValues[i];
     let value = process.env[envValue.val];
 
-    if (envValue.required && !value) {
-      Logger.get('config').error(`there is no config file or required environment variables (${envValue.val})... exiting...`);
-
-      process.exit(1);
-    }
-
-    envValues[i].fn(config, value);
-    if (envValue.required) {
+    if (!value) {
+      envValues[i].fn(config, undefined);
+    } else {
+      envValues[i].fn(config, value);
       if (envValue.type === 'number') value = parseToNumber(value);
       else if (envValue.type === 'boolean') value = parseToBoolean(value);
       else if (envValue.type === 'array') value = parseToArray(value);
       envValues[i].fn(config, value);
     }
   }
-
   return config;
 }