fix(repository): Move backend code into subdirectory

Signed-off-by: Tilman Vatteroth <git@tilmanvatteroth.de>

backend/src/config/customization.config.ts

@@ -0,0 +1,80 @@
+/*
+ * SPDX-FileCopyrightText: 2021 The HedgeDoc developers (see AUTHORS file)
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+import { registerAs } from '@nestjs/config';
+import * as Joi from 'joi';
+
+import { buildErrorMessage } from './utils';
+
+export interface CustomizationConfig {
+  branding: {
+    customName: string;
+    customLogo: string;
+  };
+  specialUrls: {
+    privacy: string;
+    termsOfUse: string;
+    imprint: string;
+  };
+}
+
+const schema = Joi.object({
+  branding: Joi.object({
+    customName: Joi.string().optional().label('HD_CUSTOM_NAME'),
+    customLogo: Joi.string()
+      .uri({
+        scheme: [/https?/],
+      })
+      .optional()
+      .label('HD_CUSTOM_LOGO'),
+  }),
+  specialUrls: Joi.object({
+    privacy: Joi.string()
+      .uri({
+        scheme: /https?/,
+      })
+      .optional()
+      .label('HD_PRIVACY_URL'),
+    termsOfUse: Joi.string()
+      .uri({
+        scheme: /https?/,
+      })
+      .optional()
+      .label('HD_TERMS_OF_USE_URL'),
+    imprint: Joi.string()
+      .uri({
+        scheme: /https?/,
+      })
+      .optional()
+      .label('HD_IMPRINT_URL'),
+  }),
+});
+
+export default registerAs('customizationConfig', () => {
+  const customizationConfig = schema.validate(
+    {
+      branding: {
+        customName: process.env.HD_CUSTOM_NAME,
+        customLogo: process.env.HD_CUSTOM_LOGO,
+      },
+      specialUrls: {
+        privacy: process.env.HD_PRIVACY_URL,
+        termsOfUse: process.env.HD_TERMS_OF_USE_URL,
+        imprint: process.env.HD_IMPRINT_URL,
+      },
+    },
+    {
+      abortEarly: false,
+      presence: 'required',
+    },
+  );
+  if (customizationConfig.error) {
+    const errorMessages = customizationConfig.error.details.map(
+      (detail) => detail.message,
+    );
+    throw new Error(buildErrorMessage(errorMessages));
+  }
+  return customizationConfig.value as CustomizationConfig;
+});