Merge pull request #708 from mcdonamp/mcdonald-gcs-adapter

Yet Another FileAdapter: Google Cloud Storage

.gitignore

@@ -40,3 +40,6 @@ lib/
 
 # cache folder
 .cache
+
+# Mac DS_Store files
+.DS_Store

README.md

@@ -135,9 +135,14 @@ PARSE_SERVER_MAX_UPLOAD_SIZE
 
 ```
 
-##### Configuring S3 Adapter
+##### Configuring File Adapters
+Parse Server allows developers to choose from several options when hosting files: the `GridStoreAdapter`, which backed by MongoDB; the `S3Adapter`, which is backed by [Amazon S3](https://aws.amazon.com/s3/); or the `GCSAdapter`, which is backed by [Google Cloud Storage](https://cloud.google.com/storage/).
 
-You can use the following environment variable setup the S3 adapter
+`GridStoreAdapter` is used by default and requires no setup, but if you're interested in using S3 or GCS, additional configuration information is available below.
+
+###### Configuring `S3Adapter`
+
+You can use the following environment variable setup to enable the S3 adapter:
 
 ```js
 S3_ACCESS_KEY
@@ -149,6 +154,19 @@ S3_DIRECT_ACCESS
 
 ```
 
+###### Configuring `GCSAdapter`
+
+You can use the following environment variable setup to enable the GCS adapter:
+
+```js
+GCP_PROJECT_ID
+GCP_KEYFILE_PATH
+GCS_BUCKET
+GCS_BUCKET_PREFIX
+GCS_DIRECT_ACCESS
+
+```
+
 ## Contributing
 
 We really want Parse to be yours, to see it grow and thrive in the open source community. Please see the [Contributing to Parse Server guide](CONTRIBUTING.md).

package.json

@@ -28,6 +28,7 @@
     "commander": "^2.9.0",
     "deepcopy": "^0.6.1",
     "express": "^4.13.4",
+    "gcloud": "^0.28.0",
     "mailgun-js": "^0.7.7",
     "mime": "^1.3.4",
     "mongodb": "~2.1.0",

spec/AdapterLoader.spec.js

@@ -3,72 +3,73 @@ var loadAdapter = require("../src/Adapters/AdapterLoader").loadAdapter;
 var FilesAdapter = require("../src/Adapters/Files/FilesAdapter").default;
 var ParsePushAdapter = require("../src/Adapters/Push/ParsePushAdapter");
 var S3Adapter = require("../src/Adapters/Files/S3Adapter").default;
+var GCSAdapter = require("../src/Adapters/Files/GCSAdapter").default;
 
 describe("AdapterLoader", ()=>{
-    
+
   it("should instantiate an adapter from string in object", (done) => {
     var adapterPath = require('path').resolve("./spec/MockAdapter");
 
     var adapter = loadAdapter({
       adapter: adapterPath,
       options: {
-        key: "value", 
+        key: "value",
         foo: "bar"
       }
     });
-    
+
     expect(adapter instanceof Object).toBe(true);
     expect(adapter.options.key).toBe("value");
     expect(adapter.options.foo).toBe("bar");
     done();
   });
-  
+
   it("should instantiate an adapter from string", (done) => {
     var adapterPath = require('path').resolve("./spec/MockAdapter");
     var adapter = loadAdapter(adapterPath);
-    
+
     expect(adapter instanceof Object).toBe(true);
     done();
   });
-  
+
   it("should instantiate an adapter from string that is module", (done) => {
     var adapterPath = require('path').resolve("./src/Adapters/Files/FilesAdapter");
     var adapter = loadAdapter({
       adapter: adapterPath
     });
-    
+
     expect(adapter instanceof FilesAdapter).toBe(true);
     done();
   });
-  
+
   it("should instantiate an adapter from function/Class", (done) => {
     var adapter = loadAdapter({
       adapter: FilesAdapter
     });
     expect(adapter instanceof FilesAdapter).toBe(true);
     done();
   });
-  
+
   it("should instantiate the default adapter from Class", (done) => {
     var adapter = loadAdapter(null, FilesAdapter);
     expect(adapter instanceof FilesAdapter).toBe(true);
     done();
   });
-  
+
   it("should use the default adapter", (done) => {
     var defaultAdapter = new FilesAdapter();
     var adapter = loadAdapter(null, defaultAdapter);
     expect(adapter instanceof FilesAdapter).toBe(true);
     done();
   });
-  
+
   it("should use the provided adapter", (done) => {
     var originalAdapter = new FilesAdapter();
     var adapter = loadAdapter(originalAdapter);
     expect(adapter).toBe(originalAdapter);
     done();
   });
-  
+
   it("should fail loading an improperly configured adapter", (done) => {
     var Adapter = function(options) {
       if (!options.foo) {
@@ -79,14 +80,14 @@ describe("AdapterLoader", ()=>{
       param: "key",
       doSomething: function() {}
     };
-     
+
     expect(() => {
       var adapter = loadAdapter(adapterOptions, Adapter);
       expect(adapter).toEqual(adapterOptions);
     }).not.toThrow("foo is required for that adapter");
     done();
   });
-  
+
   it("should load push adapter from options", (done) => {
     var options = {
       ios: {
@@ -100,7 +101,7 @@ describe("AdapterLoader", ()=>{
     }).not.toThrow();
     done();
   });
-  
+
   it("should load S3Adapter from direct passing", (done) => {
     var s3Adapter = new S3Adapter("key", "secret", "bucket")
     expect(() => {
@@ -109,4 +110,13 @@ describe("AdapterLoader", ()=>{
     }).not.toThrow();
     done();
   })
+
+  it("should load GCSAdapter from direct passing", (done) => {
+    var gcsAdapter = new GCSAdapter("projectId", "path/to/keyfile", "bucket")
+    expect(() => {
+      var adapter = loadAdapter(gcsAdapter, FilesAdapter);
+      expect(adapter).toBe(gcsAdapter);
+    }).not.toThrow();
+    done();
+  })
 });

spec/FilesController.spec.js

@@ -1,33 +1,52 @@
 var FilesController = require('../src/Controllers/FilesController').FilesController;
 var GridStoreAdapter = require("../src/Adapters/Files/GridStoreAdapter").GridStoreAdapter;
 var S3Adapter = require("../src/Adapters/Files/S3Adapter").S3Adapter;
+var GCSAdapter = require("../src/Adapters/Files/GCSAdapter").GCSAdapter;
 var Config = require("../src/Config");
 
 var FCTestFactory = require("./FilesControllerTestFactory");
 
 
 // Small additional tests to improve overall coverage
 describe("FilesController",()=>{
-  
+
   // Test the grid store adapter
   var gridStoreAdapter = new GridStoreAdapter('mongodb://localhost:27017/parse');
   FCTestFactory.testAdapter("GridStoreAdapter", gridStoreAdapter);
-  
+
   if (process.env.S3_ACCESS_KEY && process.env.S3_SECRET_KEY) {
-    
+
     // Test the S3 Adapter
     var s3Adapter = new S3Adapter(process.env.S3_ACCESS_KEY, process.env.S3_SECRET_KEY, 'parse.server.tests');
-    
+
     FCTestFactory.testAdapter("S3Adapter",s3Adapter);
-    
+
     // Test S3 with direct access
     var s3DirectAccessAdapter = new S3Adapter(process.env.S3_ACCESS_KEY, process.env.S3_SECRET_KEY, 'parse.server.tests', {
       directAccess: true
     });
-    
+
     FCTestFactory.testAdapter("S3AdapterDirect", s3DirectAccessAdapter);
-    
+
   } else if (!process.env.TRAVIS) {
     console.log("set S3_ACCESS_KEY and S3_SECRET_KEY to test S3Adapter")
   }
+
+  if (process.env.GCP_PROJECT_ID && process.env.GCP_KEYFILE_PATH && process.env.GCS_BUCKET) {
+
+    // Test the GCS Adapter
+    var gcsAdapter = new GCSAdapter(process.env.GCP_PROJECT_ID, process.env.GCP_KEYFILE_PATH, process.env.GCS_BUCKET);
+
+    FCTestFactory.testAdapter("GCSAdapter", gcsAdapter);
+
+    // Test GCS with direct access
+    var gcsDirectAccessAdapter = new GCSAdapter(process.env.GCP_PROJECT_ID, process.env.GCP_KEYFILE_PATH, process.env.GCS_BUCKET, {
+      directAccess: true
+    });
+
+    FCTestFactory.testAdapter("GCSAdapterDirect", gcsDirectAccessAdapter);
+
+  } else if (!process.env.TRAVIS) {
+    console.log("set GCP_PROJECT_ID, GCP_KEYFILE_PATH, and GCS_BUCKET to test GCSAdapter")
+  }
 });

spec/FilesControllerTestFactory.js

@@ -1,35 +1,34 @@
-
 var FilesController = require('../src/Controllers/FilesController').FilesController;
 var Config = require("../src/Config");
 
 var testAdapter = function(name, adapter) {
   // Small additional tests to improve overall coverage
-  
+
   var config = new Config(Parse.applicationId);
   var filesController = new FilesController(adapter);
 
   describe("FilesController with "+name,()=>{
-    
+
     it("should properly expand objects", (done) => {
-      
+
       var result = filesController.expandFilesInObject(config, function(){});
-      
+
       expect(result).toBeUndefined();
-      
+
       var fullFile = {
         type: '__type',
         url: "http://an.url"
       }
-      
+
       var anObject = {
         aFile: fullFile
       }
       filesController.expandFilesInObject(config, anObject);
       expect(anObject.aFile.url).toEqual("http://an.url");
-      
+
       done();
-    }) 
-    
+    })
+
     it("should properly create, read, delete files", (done) => {
       var filename;
       filesController.createFile(config, "file.txt", "hello world").then( (result) => {
@@ -51,14 +50,14 @@ var testAdapter = function(name, adapter) {
         console.error(err);
         done();
       }).then((result) => {
-        
+
         filesController.getFileData(config, filename).then((res) => {
           fail("the file should be deleted");
           done();
         }, (err) => {
-          done();  
+          done();
         });
-        
+
       }, (err) => {
         fail("The adapter should delete the file");
         console.error(err);

src/Adapters/AdapterLoader.js

@@ -1,6 +1,5 @@
 export function loadAdapter(adapter, defaultAdapter, options) {
-
-  if (!adapter)  
+  if (!adapter)
   {
     if (!defaultAdapter) {
       return options;
@@ -20,7 +19,7 @@ export function loadAdapter(adapter, defaultAdapter, options) {
     if (adapter.default) {
       adapter = adapter.default;
     }
-    
+
     return loadAdapter(adapter, undefined, options);
   } else if (adapter.module) {
     return loadAdapter(adapter.module, undefined, adapter.options);
@@ -30,7 +29,7 @@ export function loadAdapter(adapter, defaultAdapter, options) {
     return loadAdapter(adapter.adapter, undefined, adapter.options);
   }
   // return the adapter as provided
-  return adapter;     
+  return adapter;
 }
 
 export default loadAdapter;