Sign in with Apple Auth Provider (#5694)

* Sign in with Apple Auth Provider

Closes: https://github.com/parse-community/parse-server/issues/5632

Should work out of the box.

* remove required options

package-lock.json

@@ -4292,8 +4292,7 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -4314,14 +4313,12 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -4336,20 +4333,17 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -4466,8 +4460,7 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -4479,7 +4472,6 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -4494,7 +4486,6 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -4502,14 +4493,12 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -4528,7 +4517,6 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -4609,8 +4597,7 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -4622,7 +4609,6 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -4708,8 +4694,7 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -4745,7 +4730,6 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -4765,7 +4749,6 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -4809,14 +4792,12 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         }
       }
     },
@@ -6977,7 +6958,6 @@
       "version": "2.3.5",
       "resolved": "https://registry.npmjs.org/minipass/-/minipass-2.3.5.tgz",
       "integrity": "sha512-Gi1W4k059gyRbyVUZQ4mEqLm0YIUiGYfvxhF6SIlk3ui1WVxMTGfGdQ2SInh3PDrRTVvPKgULkpJtT4RH10+VA==",
-      "optional": true,
       "requires": {
         "safe-buffer": "^5.1.2",
         "yallist": "^3.0.0"
@@ -6986,8 +6966,7 @@
         "yallist": {
           "version": "3.0.3",
           "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.3.tgz",
-          "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A==",
+          "integrity": "sha512-S+Zk8DEWE6oKpV+vI3qWkaK+jSbIK86pCwe2IF/xwIpQ8jEuxpw9NyaGjmp9+BoJv5FV2piqCDcoCtStppiq2A=="
-          "optional": true
         }
       }
     },
@@ -7511,6 +7490,14 @@
         }
       }
     },
+    "node-rsa": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/node-rsa/-/node-rsa-1.0.5.tgz",
+      "integrity": "sha512-9o51yfV167CtQANnuAf+5owNs7aIMsAKVLhNaKuRxihsUUnfoBMN5OTVOK/2mHSOWaWq9zZBiRM3bHORbTZqrg==",
+      "requires": {
+        "asn1": "^0.2.4"
+      }
+    },
     "nopt": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/nopt/-/nopt-4.0.1.tgz",

package.json

@@ -30,10 +30,12 @@
     "express": "4.17.1",
     "follow-redirects": "1.7.0",
     "intersect": "1.0.1",
+    "jsonwebtoken": "8.5.1",
     "lodash": "4.17.11",
     "lru-cache": "5.1.1",
     "mime": "2.4.4",
     "mongodb": "3.2.7",
+    "node-rsa": "1.0.5",
     "parse": "2.4.0",
     "pg-promise": "8.7.2",
     "redis": "2.8.0",

spec/AuthenticationAdapters.spec.js

@@ -17,6 +17,7 @@ const responses = {
 
 describe('AuthenticationProviders', function() {
   [
+    'apple-signin',
     'facebook',
     'facebookaccountkit',
     'github',
@@ -50,7 +51,7 @@ describe('AuthenticationProviders', function() {
     });
 
     it(`should provide the right responses for adapter ${providerName}`, async () => {
-      if (providerName === 'twitter') {
+      if (providerName === 'twitter' || providerName === 'apple-signin') {
         return;
       }
       spyOn(require('../lib/Adapters/Auth/httpsRequest'), 'get').and.callFake(
@@ -1033,3 +1034,83 @@ describe('oauth2 auth adapter', () => {
     }
   });
 });
+
+describe('apple signin auth adapter', () => {
+  const apple = require('../lib/Adapters/Auth/apple-signin');
+  const jwt = require('jsonwebtoken');
+
+  it('should throw error with missing id_token', async () => {
+    try {
+      await apple.validateAuthData({}, { client_id: 'secret' });
+      fail();
+    } catch (e) {
+      expect(e.message).toBe('id_token is invalid for this user.');
+    }
+  });
+
+  it('should not verify invalid id_token', async () => {
+    try {
+      await apple.validateAuthData(
+        { id_token: 'the_token' },
+        { client_id: 'secret' }
+      );
+      fail();
+    } catch (e) {
+      expect(e.message).toBe('jwt malformed');
+    }
+  });
+
+  it('should verify id_token', async () => {
+    const fakeClaim = {
+      iss: 'https://appleid.apple.com',
+      aud: 'secret',
+      exp: Date.now(),
+    };
+    spyOn(jwt, 'verify').and.callFake(() => fakeClaim);
+
+    const result = await apple.validateAuthData(
+      { id_token: 'the_token' },
+      { client_id: 'secret' }
+    );
+    expect(result).toEqual(fakeClaim);
+  });
+
+  it('should throw error with with invalid jwt issuer', async () => {
+    const fakeClaim = {
+      iss: 'https://not.apple.com',
+    };
+    spyOn(jwt, 'verify').and.callFake(() => fakeClaim);
+
+    try {
+      await apple.validateAuthData(
+        { id_token: 'the_token' },
+        { client_id: 'secret' }
+      );
+      fail();
+    } catch (e) {
+      expect(e.message).toBe(
+        'id_token not issued by correct OpenID provider - expected: https://appleid.apple.com | from: https://not.apple.com'
+      );
+    }
+  });
+
+  it('should throw error with with invalid jwt client_id', async () => {
+    const fakeClaim = {
+      iss: 'https://appleid.apple.com',
+      aud: 'invalid_client_id',
+    };
+    spyOn(jwt, 'verify').and.callFake(() => fakeClaim);
+
+    try {
+      await apple.validateAuthData(
+        { id_token: 'the_token' },
+        { client_id: 'secret' }
+      );
+      fail();
+    } catch (e) {
+      expect(e.message).toBe(
+        'jwt aud parameter does not include this client - is: invalid_client_id | expected: secret'
+      );
+    }
+  });
+});

src/Adapters/Auth/apple-signin.js

@@ -0,0 +1,58 @@
+const Parse = require('parse/node').Parse;
+const httpsRequest = require('./httpsRequest');
+const NodeRSA = require('node-rsa');
+const jwt = require('jsonwebtoken');
+
+const TOKEN_ISSUER = 'https://appleid.apple.com';
+
+const getApplePublicKey = async () => {
+  const data = await httpsRequest.get('https://appleid.apple.com/auth/keys');
+  const key = data.keys[0];
+
+  const pubKey = new NodeRSA();
+  pubKey.importKey(
+    { n: Buffer.from(key.n, 'base64'), e: Buffer.from(key.e, 'base64') },
+    'components-public'
+  );
+  return pubKey.exportKey(['public']);
+};
+
+const verifyIdToken = async (token, clientID) => {
+  if (!token) {
+    throw new Parse.Error(
+      Parse.Error.OBJECT_NOT_FOUND,
+      'id_token is invalid for this user.'
+    );
+  }
+  const applePublicKey = await getApplePublicKey();
+  const jwtClaims = jwt.verify(token, applePublicKey, { algorithms: 'RS256' });
+
+  if (jwtClaims.iss !== TOKEN_ISSUER) {
+    throw new Parse.Error(
+      Parse.Error.OBJECT_NOT_FOUND,
+      `id_token not issued by correct OpenID provider - expected: ${TOKEN_ISSUER} | from: ${jwtClaims.iss}`
+    );
+  }
+  if (clientID !== undefined && jwtClaims.aud !== clientID) {
+    throw new Parse.Error(
+      Parse.Error.OBJECT_NOT_FOUND,
+      `jwt aud parameter does not include this client - is: ${jwtClaims.aud} | expected: ${clientID}`
+    );
+  }
+  return jwtClaims;
+};
+
+// Returns a promise that fulfills if this id_token is valid
+function validateAuthData(authData, options = {}) {
+  return verifyIdToken(authData.id_token, options.client_id);
+}
+
+// Returns a promise that fulfills if this app id is valid.
+function validateAppId() {
+  return Promise.resolve();
+}
+
+module.exports = {
+  validateAppId: validateAppId,
+  validateAuthData: validateAuthData,
+};