FileUpload options for Server Config (#7071)

* New: fileUpload options to restrict file uploads

* review changes

* update review

* Update helper.js

* added complete fileUpload values for tests

* fixed config validation

* allow file upload only for authenicated user by default

* fixed inconsistent error messages

* consolidated and extended tests

* minor compacting

* removed irregular whitespace

* added changelog entry

* always allow file upload with master key

* fix lint

* removed fit

Co-authored-by: Manuel Trezza <trezza.m@gmail.com>

src/Options/index.js

@@ -198,6 +198,9 @@ export interface ParseServerOptions {
   :ENV: PARSE_SERVER_EXPERIMENTAL_IDEMPOTENCY_OPTIONS
   :DEFAULT: false */
   idempotencyOptions: ?IdempotencyOptions;
+  /* Options for file uploads
+  :ENV: PARSE_SERVER_FILE_UPLOAD_OPTIONS */
+  fileUpload: ?FileUploadOptions;
   /* Full path to your GraphQL custom schema.graphql file */
   graphQLSchema: ?string;
   /* Mounts the GraphQL endpoint
@@ -315,3 +318,15 @@ export interface PasswordPolicyOptions {
   /* resend token if it's still valid */
   resetTokenReuseIfValid: ?boolean;
 }
+
+export interface FileUploadOptions {
+  /*  Is true if file upload should be allowed for anonymous users.
+  :DEFAULT: false */
+  enableForAnonymousUser: ?boolean;
+  /* Is true if file upload should be allowed for authenticated users.
+  :DEFAULT: true */
+  enableForAuthenticatedUser: ?boolean;
+  /* Is true if file upload should be allowed for anyone, regardless of user authentication.
+  :DEFAULT: false */
+  enableForPublic: ?boolean;
+}