add login with qq, wechat and weibo (#3069)

* add login with qq, wechat and weibo

* modify the code style, etc

Author: qiushi2012

src/authDataManager/index.js

@@ -10,6 +10,9 @@ let digits = require("./twitter"); // digits tokens are validated by twitter
 let janrainengage = require("./janrainengage");
 let janraincapture = require("./janraincapture");
 let vkontakte = require("./vkontakte");
+let qq = require("./qq");
+let wechat = require("./wechat");
+let weibo = require("./weibo");
 
 let anonymous = {
   validateAuthData: () => {
@@ -33,7 +36,10 @@ let providers = {
   digits,
   janrainengage,
   janraincapture,
-  vkontakte
+  vkontakte,
+  qq,
+  wechat,
+  weibo
 }
 
 module.exports = function(oauthOptions = {}, enableAnonymousUsers = true) {

src/authDataManager/qq.js

@@ -0,0 +1,47 @@
+// Helper functions for accessing the qq Graph API.
+var https = require('https');
+var Parse = require('parse/node').Parse;
+
+// Returns a promise that fulfills iff this user id is valid.
+function validateAuthData(authData) {
+  return graphRequest('me?access_token=' + authData.access_token).then(function (data) {
+    if (data && data.openid == authData.id) {
+      return;
+    }
+    throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'qq auth is invalid for this user.');
+  });
+}
+
+// Returns a promise that fulfills if this app id is valid.
+function validateAppId(appIds, authData) {
+  return Promise.resolve();
+}
+
+// A promisey wrapper for qq graph requests.
+function graphRequest(path) {
+  return new Promise(function (resolve, reject) {
+    https.get('https://graph.qq.com/oauth2.0/' + path, function (res) {
+      var data = '';
+      res.on('data', function (chunk) {
+        data += chunk;
+      });
+      res.on('end', function () {
+        var starPos=data.indexOf("(");
+        var endPos=data.indexOf(")");
+        if(starPos==-1||endPos==-1){
+          throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'qq auth is invalid for this user.');
+        }
+        data=data.substring(starPos+1,endPos-1);
+        data = JSON.parse(data);
+        resolve(data);
+      });
+    }).on('error', function (e) {
+      reject('Failed to validate this access token with qq.');
+    });
+  });
+}
+
+module.exports = {
+  validateAppId,
+  validateAuthData
+};

src/authDataManager/wechat.js

@@ -0,0 +1,41 @@
+// Helper functions for accessing the WeChat Graph API.
+var https = require('https');
+var Parse = require('parse/node').Parse;
+
+// Returns a promise that fulfills iff this user id is valid.
+function validateAuthData(authData) {
+  return graphRequest('auth?access_token=' + authData.access_token +'&openid=' +authData.id).then(function (data) {
+    if (data.errcode == 0) {
+      return;
+    }
+    throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'qq auth is invalid for this user.');
+  });
+}
+
+// Returns a promise that fulfills if this app id is valid.
+function validateAppId(appIds, authData) {
+  return Promise.resolve();
+}
+
+// A promisey wrapper for WeChat graph requests.
+function graphRequest(path) {
+  return new Promise(function (resolve, reject) {
+    https.get('https://api.weixin.qq.com/sns/' + path, function (res) {
+      var data = '';
+      res.on('data', function (chunk) {
+        data += chunk;
+      });
+      res.on('end', function () {
+        data = JSON.parse(data);
+        resolve(data);
+      });
+    }).on('error', function (e) {
+      reject('Failed to validate this access token with weixin.');
+    });
+  });
+}
+
+module.exports = {
+  validateAppId,
+  validateAuthData
+};

src/authDataManager/weibo.js

@@ -0,0 +1,60 @@
+// Helper functions for accessing the weibo Graph 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) {
+  return graphRequest(authData.access_token).then(function (data) {
+    if (data && data.uid == authData.id) {
+      return;
+    }
+    throw new Parse.Error(Parse.Error.OBJECT_NOT_FOUND, 'weibo auth is invalid for this user.');
+  });
+}
+
+// Returns a promise that fulfills if this app id is valid.
+function validateAppId(appIds, authData) {
+  return Promise.resolve();
+}
+
+// A promisey wrapper for weibo graph requests.
+function graphRequest(access_token) {
+  return new Promise(function (resolve, reject) {
+    var postData = querystring.stringify({
+      "access_token":access_token
+    });
+    var options = {
+      hostname: 'api.weibo.com',
+      path: '/oauth2/get_token_info',
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+        'Content-Length': Buffer.byteLength(postData)
+      }
+    };
+    var req = https.request(options, function(res){
+      var data = '';
+      res.on('data', function (chunk) {
+        data += chunk;
+      });
+      res.on('end', function () {
+        data = JSON.parse(data);
+        resolve(data);
+      });
+      res.on('error', function (err) {
+        reject('Failed to validate this access token with weibo.');
+      });
+    });
+    req.on('error', function (e){
+      reject('Failed to validate this access token with weibo.');
+    });
+    req.write(postData);
+    req.end();
+  });
+}
+
+module.exports = {
+  validateAppId,
+  validateAuthData
+};