add operation module into back-end server

1.decrypt the password and check if valid or not

NodeServer/api/operation.js

@@ -0,0 +1,55 @@
+/**
+ * operation module
+ * @authors cha0s0000
+ * @github  https://github.com/Cha0s0000/MicroSteemit
+ * @webSite https://steemit.com/@cha0s0000
+ */
+
+var express = require('express');
+var router = express.Router();
+var steem = require('steem');
+const crypto = require('crypto')
+
+// length of key is 16 of 128 bit. JUST for test the Decrypt
+const key = '3454345434543454'
+// Hexadecimal number as the secret key offset. JUST for test the Decrypt
+const iv = '6666666666666666'
+
+// deal with GET request
+router.get('/wif_is_valid', function(req, res) {
+	var name = req.query.account;
+	var privWif = aesDecrypt(req.query.key,key,iv);
+	steem.api.getAccounts([name], function(err, result) {
+		var pubWif;
+		try{
+		 	pubWif= result[0].posting.key_auths[0][0];
+		}
+		catch(e){
+			pubWif = "none";
+		}
+		var isvalid;
+		try{ 
+			isvalid = steem.auth.wifIsValid(privWif, pubWif,'posting'); 
+		}
+		catch(e){ 
+			isvalid = 'false'; 
+		}
+		if(isvalid == true){
+			console.log(name+' Welcome.');
+			res.json({message:'success'});
+		}else{
+			console.log('Wrong! Check your Private key.');
+			res.json({message:'fail'});
+		}
+	});
+});
+
+
+const aesDecrypt = function(data, secretKey, iv) {
+    const cipherEncoding = 'hex'
+    const clearEncoding = 'utf8'
+    const cipher = crypto.createDecipheriv('aes-128-cbc',secretKey, iv)
+    return  cipher.update(data,cipherEncoding,clearEncoding) + cipher.final(clearEncoding)
+ }
+
+module.exports = router;

NodeServer/api/post.js

@@ -53,7 +53,7 @@ router.get('/get_discussions_by_author_before_date', function(req, res) {
 });
 
 router.get('/get_discussions_by_comments', function(req, res) {
-	steem.api.getDiscussionsByComments(req.query, function(err, result) {
+	steem.api.getDiscussionsByComments(JSON.parse(req.query.query), function(err, result) {
 	  res.send(result).end();
 	  console.log("get_discussions_by_comments");
 	});
@@ -74,7 +74,8 @@ router.get('/get_content_replies', function(req, res) {
 });
 
 router.get('/get_discussions_by_feed', function(req, res) {
-	steem.api.getDiscussionsByFeed(req.query, function(err, result) {
+	steem.api.getDiscussionsByFeed(JSON.parse(req.query.query), function(err, result) {
+	  console.log(result);
 	  res.send(result).end();
 	  console.log("get_discussions_by_feed");
 	});

NodeServer/routes/index.js

@@ -39,7 +39,13 @@ module.exports = function(app){
 	// app.use('/get_state',general);
 	// app.use('/get_dynamic_global_properties',general);
 
-
+	var operation = require('../api/operation');
+	app.use('/operation',operation);
+
+
+
+
+
 	// TO-DEAL api 
 	// https://api.steemjs.com/get_state?path=/@' + author + '/recent-replies
 	// https://uploadbeta.com/api/steemit/transfer-history/?id=' + account