Implement Janrain Capture and Janrain Engage auth provider (#2436)

* Janrain engage auth provider
* Modeled after the existing providers in /src/authDataManager/ and also after https://github.com/janrain/Janrain-Sample-Code/blob/master/widget-examples/server.js
* See also: http://developers.janrain.com/overview/social-login/identity-providers/user-profile-data/#normalized-user-profile-data

* Janrain capture auth provider
* Modeled after the existing providers in /src/authDataManager/
* See also: https://docs.janrain.com/api/registration/entity/#entity

* Janrain engage auth provider
* Modeled after the existing providers in /src/authDataManager/ and also after https://github.com/janrain/Janrain-Sample-Code/blob/master/widget-examples/server.js
* See also: http://developers.janrain.com/overview/social-login/identity-providers/user-profile-data/#normalized-user-profile-data

* Janrain capture auth provider
* Modeled after the existing providers in /src/authDataManager/
* See also: https://docs.janrain.com/api/registration/entity/#entity

* Adding missing newlines at EOF

spec/OAuth.spec.js

@@ -137,7 +137,7 @@ describe('OAuth', function() {
     })
   });
 
-  ["facebook", "github", "instagram", "google", "linkedin", "meetup", "twitter"].map(function(providerName){
+  ["facebook", "github", "instagram", "google", "linkedin", "meetup", "twitter", "janrainengage", "janraincapture"].map(function(providerName){
     it("Should validate structure of "+providerName, (done) => {
       var provider = require("../src/authDataManager/"+providerName);
       jequal(typeof provider.validateAuthData, "function");

src/authDataManager/index.js

@@ -7,6 +7,8 @@ let github = require("./github");
 let twitter = require("./twitter");
 let spotify = require("./spotify");
 let digits = require("./twitter"); // digits tokens are validated by twitter
+let janrainengage = require("./janrainengage");
+let janraincapture = require("./janraincapture");
 
 let anonymous = {
   validateAuthData: () => {
@@ -27,7 +29,9 @@ let providers = {
   twitter,
   spotify,
   anonymous,
-  digits
+  digits,
+  janrainengage,
+  janraincapture
 }
 
 module.exports = function(oauthOptions = {}, enableAnonymousUsers = true) {

src/authDataManager/janraincapture.js

@@ -0,0 +1,54 @@
+// Helper functions for accessing the Janrain Capture API.
+var https = require('https');
+var Parse = require('parse/node').Parse;
+var querystring = require('querystring');
+
+// Returns a promise that fulfills iff this user id is valid.
+function validateAuthData(authData, options) {
+  return request(options.janrain_capture_host, authData.access_token)
+    .then((data) => {
+      //successful response will have a "stat" (status) of 'ok' and a result node that stores the uuid, because that's all we asked for
+      //see: https://docs.janrain.com/api/registration/entity/#entity
+      if (data && data.stat == 'ok' && data.result == authData.id) {
+        return;
+      }
+      throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'Janrain capture auth is invalid for this user.');
+    });
+}
+
+// Returns a promise that fulfills iff this app id is valid.
+function validateAppId() {
+  //no-op
+  return Promise.resolve();
+}
+
+// A promisey wrapper for api requests
+function request(host, access_token) {
+
+  var query_string_data = querystring.stringify({
+    'access_token': access_token,
+    'attribute_name': 'uuid' // we only need to pull the uuid for this access token to make sure it matches
+  });
+
+  return new Promise(function(resolve, reject) {
+    https.get({
+      host: host,
+      path: '/entity?' + query_string_data
+    }, function(res) {
+      var data = '';
+      res.on('data', function(chunk) {
+        data += chunk;
+      });
+      res.on('end', function () {
+        resolve(JSON.parse(data));
+      });
+    }).on('error', function(e) {
+      reject('Failed to validate this access token with Janrain capture.');
+    });
+  });
+}
+
+module.exports = {
+  validateAppId: validateAppId,
+  validateAuthData: validateAuthData
+};

src/authDataManager/janrainengage.js

@@ -0,0 +1,67 @@
+// Helper functions for accessing the Janrain Engage API.
+var https = require('https');
+var Parse = require('parse/node').Parse;
+var querystring = require('querystring');
+
+// Returns a promise that fulfills iff this user id is valid.
+function validateAuthData(authData, options) {
+  return request(options.api_key, authData.auth_token)
+    .then((data) => {
+      //successful response will have a "stat" (status) of 'ok' and a profile node with an identifier
+      //see: http://developers.janrain.com/overview/social-login/identity-providers/user-profile-data/#normalized-user-profile-data
+      if (data && data.stat == 'ok' && data.profile.identifier == authData.id) {
+        return;
+      }
+      throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'Janrain engage auth is invalid for this user.');
+    });
+}
+
+// Returns a promise that fulfills iff this app id is valid.
+function validateAppId() {
+  //no-op
+  return Promise.resolve();
+}
+
+// A promisey wrapper for api requests
+function request(api_key, auth_token) {
+
+  var post_data = querystring.stringify({
+    'token': auth_token,
+    'apiKey': api_key,
+    'format': 'json'
+  });
+
+  var post_options = {
+    host: 'rpxnow.com',
+    path: '/api/v2/auth_info',
+    method: 'POST',
+    headers: {
+      'Content-Type': 'application/x-www-form-urlencoded',
+      'Content-Length': post_data.length
+    }
+  };
+
+  return new Promise(function (resolve, reject) {
+    // Create the post request.
+    var post_req = https.request(post_options, function (res) {
+      var data = '';
+      res.setEncoding('utf8');
+      // Append data as we receive it from the Janrain engage server.
+      res.on('data', function (d) {
+        data += d;
+      });
+      // Once we have all the data, we can parse it and return the data we want.
+      res.on('end', function () {
+        resolve(JSON.parse(data));
+      });
+    });
+
+    post_req.write(post_data);
+    post_req.end();
+  });
+}
+
+module.exports = {
+  validateAppId: validateAppId,
+  validateAuthData: validateAuthData
+};