Add the addFileNameHash option that allows users to remove the hash f… (#4915)

* Add the addFileNameHash option that allows users to remove the hash from file names

* Change option name to preserveFileName

* Revert changes to package-lock.json

Author: GabrielLomba

README.md

@@ -232,6 +232,7 @@ The client keys used with Parse are no longer necessary with Parse Server. If yo
 #### Advanced options
 
 * `fileKey` - For migrated apps, this is necessary to provide access to files already hosted on Parse.
+* `preserveFileName` - Set to true to remove the unique hash added to the file names. Defaults to false.
 * `allowClientClassCreation` - Set to false to disable client class creation. Defaults to true.
 * `enableAnonymousUsers` - Set to false to disable anonymous users. Defaults to true.
 * `auth` - Used to configure support for [3rd party authentication](http://docs.parseplatform.org/parse-server/guide/#oauth-and-3rd-party-authentication).

spec/FilesController.spec.js

@@ -14,13 +14,13 @@ const mockAdapter = {
 }
 
 // Small additional tests to improve overall coverage
-describe("FilesController",() =>{
+describe("FilesController", () => {
   it("should properly expand objects", (done) => {
 
     const config = Config.get(Parse.applicationId);
     const gridStoreAdapter = new GridStoreAdapter('mongodb://localhost:27017/parse');
     const filesController = new FilesController(gridStoreAdapter)
-    const result = filesController.expandFilesInObject(config, function(){});
+    const result = filesController.expandFilesInObject(config, function () { });
 
     expect(result).toBeUndefined();
 
@@ -43,7 +43,7 @@ describe("FilesController",() =>{
 
     reconfigureServer({ filesAdapter: mockAdapter })
       .then(() => new Promise(resolve => setTimeout(resolve, 1000)))
-      .then(() => new Parse.File("yolo.txt", [1,2,3], "text/plain").save())
+      .then(() => new Parse.File("yolo.txt", [1, 2, 3], "text/plain").save())
       .then(
         () => done.fail('should not succeed'),
         () => setImmediate(() => Parse.Promise.as('done'))
@@ -62,4 +62,40 @@ describe("FilesController",() =>{
         done();
       });
   });
+
+  it("should add a unique hash to the file name when the preserveFileName option is false", (done) => {
+
+    const config = Config.get(Parse.applicationId)
+    const gridStoreAdapter = new GridStoreAdapter('mongodb://localhost:27017/parse')
+    spyOn(gridStoreAdapter, 'createFile')
+    gridStoreAdapter.createFile.and.returnValue(Promise.resolve())
+    const fileName = 'randomFileName.pdf'
+    const regexEscapedFileName = fileName.replace(/\./g, "\\$&")
+    const filesController = new FilesController(gridStoreAdapter, null, { preserveFileName: false })
+
+    filesController.createFile(config, fileName)
+
+    expect(gridStoreAdapter.createFile).toHaveBeenCalledTimes(1)
+    expect(gridStoreAdapter.createFile.calls.mostRecent().args[0]).toMatch(`^.{32}_${regexEscapedFileName}$`)
+
+    done();
+  });
+
+  it("should not add a unique hash to the file name when the preserveFileName option is false", (done) => {
+
+    const config = Config.get(Parse.applicationId)
+    const gridStoreAdapter = new GridStoreAdapter('mongodb://localhost:27017/parse')
+    spyOn(gridStoreAdapter, 'createFile')
+    gridStoreAdapter.createFile.and.returnValue(Promise.resolve())
+    const fileName = 'randomFileName.pdf'
+    const filesController = new FilesController(gridStoreAdapter, null, { preserveFileName: true })
+
+    filesController.createFile(config, fileName)
+
+    expect(gridStoreAdapter.createFile).toHaveBeenCalledTimes(1)
+    expect(gridStoreAdapter.createFile.calls.mostRecent().args[0]).toEqual(fileName)
+
+    done();
+  });
+
 });

src/Controllers/FilesController.js

@@ -2,7 +2,7 @@
 import { randomHexString } from '../cryptoUtils';
 import AdaptableController from './AdaptableController';
 import { FilesAdapter } from '../Adapters/Files/FilesAdapter';
-import path  from 'path';
+import path from 'path';
 import mime from 'mime';
 
 const legacyFilesRegex = new RegExp("^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}-.*");
@@ -25,9 +25,11 @@ export class FilesController extends AdaptableController {
       contentType = mime.getType(filename);
     }
 
-    filename = randomHexString(32) + '_' + filename;
+    if (!this.options.preserveFileName) {
+      filename = randomHexString(32) + '_' + filename;
+    }
 
-    var location = this.adapter.getFileLocation(config, filename);
+    const location = this.adapter.getFileLocation(config, filename);
     return this.adapter.createFile(filename, data, contentType).then(() => {
       return Promise.resolve({
         url: location,

src/Controllers/index.js

@@ -82,14 +82,15 @@ export function getFilesController(options: ParseServerOptions): FilesController
     databaseURI,
     filesAdapter,
     databaseAdapter,
+    preserveFileName,
   } = options;
   if (!filesAdapter && databaseAdapter) {
     throw 'When using an explicit database adapter, you must also use an explicit filesAdapter.';
   }
   const filesControllerAdapter = loadAdapter(filesAdapter, () => {
     return new GridStoreAdapter(databaseURI);
   });
-  return new FilesController(filesControllerAdapter, appId);
+  return new FilesController(filesControllerAdapter, appId, { preserveFileName });
 }
 
 export function getUserController(options: ParseServerOptions): UserController {

src/Options/Definitions.js

@@ -135,6 +135,12 @@ module.exports.ParseServerOptions = {
     "env": "PARSE_SERVER_FILE_KEY",
     "help": "Key for your files"
   },
+  "preserveFileName": {
+    "env": "PARSE_SERVER_PRESERVE_FILE_NAME",
+    "help": "Enable (or disable) the addition of a unique hash to the file names",
+    "action": parsers.booleanParser,
+    "default": false
+  },
   "userSensitiveFields": {
     "env": "PARSE_SERVER_USER_SENSITIVE_FIELDS",
     "help": "Personally identifiable information fields in the user table the should be removed for non-authorized users.",

src/Options/index.js

@@ -64,6 +64,9 @@ export interface ParseServerOptions {
   webhookKey: ?string;
   /* Key for your files */
   fileKey: ?string;
+  /* Enable (or disable) the addition of a unique hash to the file names
+  :ENV: PARSE_SERVER_PRESERVE_FILE_NAME */
+  preserveFileName: ?boolean; // = false
   /* Personally identifiable information fields in the user table the should be removed for non-authorized users. */
   userSensitiveFields: ?string[]; // = ["email"]
   /* Enable (or disable) anon users, defaults to true