Implement monitoring of unconfirmed logins

backend/app.js

@@ -8,10 +8,10 @@ const ownermodel = require('./models/owner');
 const itemmodel = require('./models/item');
 const ordermodel = require('./models/order');
 const pricemodel = require('./models/price');
+const txmodel = require('./models/tx');
 const mongoose = require('mongoose');
 const stdrpc = require('stdrpc');
 const CoinGecko = require('coingecko-api');
-//const RequestIP = require('@supercharge/request-ip');
 
 var db = require('./config/db');
 mongoose.connect('mongodb://'+db.user+':'+db.password+'@'+db.server+'/'+db.database).then(() => {
@@ -84,7 +84,7 @@ var blockInterval = setInterval( function() {
 			//console.log(docs);
 		//}
 	//});
-	rpc.z_listreceivedbyaddress(fullnode.addr, 10).then(txs => {
+	rpc.z_listreceivedbyaddress(fullnode.addr, 1).then(txs => {
 		var re = /.*ZGO::(.*)\sReply-To:\s(z\w+)/;
 		async.each (txs, function(txData, callback) {
 			var memo = hexToString(txData.memo);
@@ -96,46 +96,58 @@ var blockInterval = setInterval( function() {
 					var session = match[1];
 					var blocktime = txData.blocktime;
 					//console.log('  ', session, blocktime);
-					usermodel.findOne({address: address, session: session, blocktime: blocktime}).then(function(doc){
-						if (doc != null) {
-							console.log('Found user');
-						} else {
-							console.log('User not found', session, blocktime);
-							var user = new usermodel({
-								address: address,
-								session: session,
-								blocktime: blocktime
-							});
-							user.save(function(error) {
-								if (error) {
-									console.log(error);
-								}
+					if (txData.confirmations >= 10 ) {
+						usermodel.findOne({address: address, session: session, blocktime: blocktime}).then(function(doc){
+							if (doc != null) {
+								console.log('Found user');
+							} else {
+								console.log('User not found', session, blocktime);
+								var user = new usermodel({
+									address: address,
+									session: session,
+									blocktime: blocktime
+								});
+								user.save(function(error) {
+									if (error) {
+										console.log(error);
+									}
 
-								console.log('User saved');
-							});
-						}
-					});
-					ownermodel.findOne({address: address}).then(function (oDoc) {
-						if (oDoc != null) {
-							console.log('Found owner');
-						} else {
-							console.log('Owner not found', session);
-							var owner = new ownermodel({
-								address: address,
-								name: 'Z-Go-'.concat(address.substring(0,5))
-							});
-							owner.save().then(function(err) {
-								if (err) {
-									console.log(err);
-								}
-								console.log('Owner saved!');
-							}).catch(() => {
-								console.log('Owner exists');
-							});
-						}
-					}).catch((err) => {
-						console.log(err);
-					});
+									console.log('User saved');
+								});
+							}
+						});
+						ownermodel.findOne({address: address}).then(function (oDoc) {
+							if (oDoc != null) {
+								console.log('Found owner');
+							} else {
+								console.log('Owner not found', session);
+								var owner = new ownermodel({
+									address: address,
+									name: 'Z-Go-'.concat(address.substring(0,5))
+								});
+								owner.save().then(function(err) {
+									if (err) {
+										console.log(err);
+									}
+									console.log('Owner saved!');
+								}).catch(() => {
+									console.log('Owner exists');
+								});
+							}
+						}).catch((err) => {
+							console.log(err);
+						});
+						txmodel.deleteMany({session: session}, function(err) {
+							if (err) console.log(err);
+							console.log('Deleted confirmed login');
+						});
+					} else {
+						txmodel.updateOne({address: address, session: session}, { confirmations: txData.confirmations, amount:txData.amount}, {new:true, upsert:true}, function(err,docs) {
+							if (err) {
+								console.log(err);
+							}
+						});
+					}
 				}
 			}
 		}, function (err) {
@@ -188,6 +200,26 @@ app.get('/api/users', (req, res, next) => {
 		});
 });
 
+app.get('/api/pending', (req, res, next) => {
+	console.log('Get: /api/pending');
+	txmodel.find({'session': req.query.session}).
+		then((documents) => {
+			if (documents.length > 0) {
+				//console.log('pending', documents);
+				res.status(200).json({
+					message: 'Found pending txs',
+					txs: documents
+				});
+			} else {
+				//console.log('pending not found', documents);
+				res.status(204).json({
+					message: 'No txs found',
+					txs: null
+				});
+			}
+		});
+});
+
 app.get('/api/getuser', (req, res, next) => {
 	console.log('Get: /api/getuser/', req.query.session);
 	var today = new Date().getTime() / 1000;

backend/models/tx.js

@@ -0,0 +1,10 @@
+const mongoose = require('mongoose');
+
+const txSchema = mongoose.Schema({
+	address: {type: String},
+	session: {type: String, required:true},
+	confirmations: {type: Number, required:true},
+	amount: {type: Number, required:true}
+});
+
+module.exports = mongoose.model('Tx', txSchema);

src/app/login/login.component.html

@@ -31,7 +31,13 @@
 			</ul>
 			</mat-card>
 		</td>
-		<td>
+		<td align="center">
+			<mat-card *ngIf = "txs.length > 0">
+				<h4>Login received!</h4>
+				<mat-list>
+					<mat-list-item *ngFor="let tx of txsUpdate | async">It has {{tx.confirmations}} confirmations, needs 10.</mat-list-item>
+				</mat-list>
+			</mat-card>
 			<mat-card>
 			<div align="center" id="info">
 				<p>

src/app/login/login.component.ts

@@ -2,6 +2,7 @@ import { Component, OnInit, OnDestroy, Injectable, ChangeDetectorRef } from '@an
 import { CanActivate, Router, RouterStateSnapshot, ActivatedRouteSnapshot, ActivatedRoute } from '@angular/router';
 import { UserService } from '../user.service';
 import { FullnodeService } from '../fullnode.service';
+import { Tx } from '../tx.model';
 import { Subscription, Observable } from 'rxjs';
 import { v4 as uuidv4 } from 'uuid';
 var QRCode = require('easyqrcodejs');
@@ -16,12 +17,14 @@ var Buffer = require('buffer/').Buffer;
 })
 
 export class LoginComponent implements OnInit {
+	txs: Tx[] = [];
 	intervalHolder: any;
 	nodeAddress: string = '';
 	private FullnodeSub: Subscription = new Subscription();
 	private UserSub: Subscription = new Subscription();
 	public heightUpdate: Observable<number>;
 	public uZaddrUpdate: Observable<string>;
+	public txsUpdate: Observable<Tx[]>;
 	constructor(
 		private activatedRoute: ActivatedRoute,
 		public fullnodeService: FullnodeService,
@@ -32,6 +35,10 @@ export class LoginComponent implements OnInit {
 		//this.fullnodeService.getAddr();
 		this.heightUpdate = fullnodeService.heightUpdate;
 		this.uZaddrUpdate = userService.uZaddrUpdate;
+		this.txsUpdate = userService.txUpdate;
+		this.txsUpdate.subscribe((txs) => {
+			this.txs = txs;
+		});
 	}
 
 	ngOnInit(){
@@ -78,6 +85,10 @@ export class LoginComponent implements OnInit {
 
 	loginCheck(){
 		this.userService.findUser();
+		this.userService.findPending();
+		this.txsUpdate.subscribe((txs) => {
+			this.txs = txs;
+		});
 		this.uZaddrUpdate.subscribe((userAddr: string) => {
 			if (userAddr.length != 0) {
 				console.log('Log in found in blockchain!');

src/app/tx.model.ts

@@ -0,0 +1,6 @@
+export interface Tx {
+	_id?: string;
+	address: string;
+	session: string;
+	confirmations: number;
+}

src/app/user.service.ts

@@ -3,12 +3,13 @@ import {Subject, BehaviorSubject, Observable} from 'rxjs';
 import {HttpClient, HttpParams, HttpHeaders} from '@angular/common/http';
 import {User} from './user.model';
 import {Owner} from './owner.model';
+import {Tx} from './tx.model';
 
 @Injectable({providedIn: 'root'})
 
 export class UserService{
 	beUrl = 'http://localhost:3000/';
-	private dataStore: { user: User, owner: Owner} = { 
+	private dataStore: { user: User, owner: Owner, txs: Tx[]} = { 
 		user: {
 			address: '',
 			session: '',
@@ -17,7 +18,8 @@ export class UserService{
 		owner: {
 			address: '',
 			name: ''
-		}
+		},
+		txs : []
 	};
 	private uZaddr = '';
 	private oZaddr = '';
@@ -27,18 +29,21 @@ export class UserService{
 	private _userUpdated: BehaviorSubject<User> = new BehaviorSubject(this.dataStore.user);
 	private uNameUpdated = new Subject<string>();
 	private _ownerUpdated: BehaviorSubject<Owner> = new BehaviorSubject(this.dataStore.owner);
+	private _txsUpdated: BehaviorSubject<Tx[]> = new BehaviorSubject(this.dataStore.txs);
 	public readonly uZaddrUpdate: Observable<string> = this._uZaddrUpdated.asObservable();
 	public readonly ownerUpdate: Observable<Owner> = this._ownerUpdated.asObservable();
 	public readonly userUpdate: Observable<User> = this._userUpdated.asObservable();
+	public readonly txUpdate: Observable<Tx[]> = this._txsUpdated.asObservable();
 	private reqHeaders: HttpHeaders;
 	private apiKey = 'Le2adeic8Thah4Aeng4daem6i';
 
 	constructor(private http: HttpClient){
 		this.reqHeaders = new HttpHeaders().set('Authorization', this.apiKey);
-		console.log('US:', this.reqHeaders);
+		//console.log('US:', this.reqHeaders);
 		this.session = localStorage.getItem('s4z_token');
 		if (this.session != null) {
 			this.findUser();
+			this.findPending();
 		}
 	}
 
@@ -68,6 +73,31 @@ export class UserService{
 		}
 	}
 	
+	findPending() {
+		this.session = localStorage.getItem('s4z_token');
+		if (this.session != null) {
+			const params = new HttpParams().append('session', this.session!);
+			let obs = this.http.get<{message: string, txs: any}>(this.beUrl+'api/pending', { headers: this.reqHeaders, params: params, observe: 'response'});
+
+			obs.subscribe((TxDataResponse) => {
+				//console.log('US Tx', TxDataResponse);
+				if (TxDataResponse.status == 200){
+					this.dataStore.txs = TxDataResponse.body!.txs;
+					console.log(`US: Pending logins found`);
+					this._txsUpdated.next(Object.assign({},this.dataStore).txs);
+				} else {
+					console.log('US: Did not find pending txs');
+					this.dataStore.txs = [];
+					this._txsUpdated.next(Object.assign({},this.dataStore).txs);
+				}
+			});
+
+			return obs;
+		} else {
+			console.log('No session loaded');
+			return null;
+		}
+	}
 
 	addOwner(address: string) {
 		const owner: Owner={_id: '', address: address, name: 'Zgo-'.concat(address.substring(0,5))};