Upgrade dependencies and add socks proxy support

.env.sample

@@ -4,5 +4,8 @@ LND_REST_API_WS=wss://localhost:8080
 LND_REST_API=https://localhost:8080
 REJECT_UNAUTHORIZED=0
 TLS_CERT_BASE64=ABCD=
+USE_SOCKS_PROXY=0
+SOCKS_PROXY_HOST=""
+SOCKS_PROXY_PORT=1080
 #MACAROON_FILE=readonly.macaroon
 #TLS_CERT_FILE=tls.cert

.eslintrc.json

@@ -29,7 +29,8 @@
                 "project": "./tsconfig.json"
             },
             "rules": {
-                "@typescript-eslint/no-unnecessary-condition": "off"
+                "@typescript-eslint/no-unnecessary-condition": "off",
+                "@typescript-eslint/naming-convention": "off"
             }
         }
     ],

package.json

@@ -7,27 +7,28 @@
     "test": "test"
   },
   "dependencies": {
-    "@types/ws": "^8.2.2",
-    "axios": "^0.24.0",
-    "dotenv": "12",
-    "fastify": "^3.25.3",
-    "fastify-cors": "^6.0.2",
-    "fastify-decorators": "^3.10.0",
-    "fastify-helmet": "7.0",
-    "fastify-plugin": "^3.0.0",
+    "@types/ws": "^8.5.3",
+    "axios": "^0.26.1",
+    "dotenv": "16.0.0",
+    "fastify": "^3.28.0",
+    "fastify-cors": "^6.0.3",
+    "fastify-decorators": "^3.11.0",
+    "fastify-helmet": "7.0.1",
+    "fastify-plugin": "^3.0.1",
     "fastify-sensible": "^3.1.2",
     "fastify-socket.io": "^3.0.0",
-    "fastify-static": "^4.5.0",
+    "fastify-static": "^4.6.1",
     "reflect-metadata": "^0.1.13",
-    "rxjs": "^7.5.2",
+    "rxjs": "^7.5.5",
     "socket.io": "^4.4.1",
-    "typescript": "^4.5.4",
-    "ws": "^8.4.0"
+    "socks-proxy-agent": "^6.2.0-beta.0",
+    "typescript": "^4.6.3",
+    "ws": "^8.5.0"
   },
   "devDependencies": {
     "@shopify/eslint-plugin": "^41.0.1",
     "@types/jest": "^27.4.0",
-    "@types/node": "^17.0.8",
+    "@types/node": "^17.0.24",
     "@typescript-eslint/eslint-plugin": "^5.8.1",
     "@typescript-eslint/parser": "^5.8.1",
     "axios-mock-adapter": "^1.20.0",

src/controllers/channel.controller.ts

@@ -53,8 +53,7 @@ export default class ChannelController {
 
     try {
       return await this.lndService.getChannel(request.params.channelId);
-    } 
-    catch {
+    } catch {
       return reply.notFound();
     }
   }

src/services/lnd-service.ts

@@ -1,6 +1,7 @@
 import * as https from 'https';
 import {existsSync, readFileSync} from 'fs';
 
+import {SocksProxyAgent} from 'socks-proxy-agent';
 import axios from 'axios';
 import {Subject} from 'rxjs';
 import WebSocket from 'ws';
@@ -23,7 +24,7 @@ if (existsSync(process.env.MACAROON_FILE)) {
 if (existsSync(process.env.TLS_CERT_FILE)) {
   tlsCertData = readFileSync(process.env.TLS_CERT_FILE).toString('ascii');
 } else {
-  const tlsCertData = Buffer.from(
+  tlsCertData = Buffer.from(
     process.env.TLS_CERT_BASE64 || '',
     'base64',
   ).toString('ascii');
@@ -39,20 +40,37 @@ if (process.env.REJECT_UNAUTHORIZED) {
   rejectUnauthorized = Boolean(Number(process.env.REJECT_UNAUTHORIZED));
 }
 
-const httpsAgent = new https.Agent({
+let httpsAgent;
+
+if (process.env.USE_SOCKS_PROXY === '1') {
+  httpsAgent = new SocksProxyAgent({
+    host: process.env.SOCKS_PROXY_HOST || undefined,
+    hostname: process.env.SOCKS_PROXY_HOST || undefined,
+    port: process.env.SOCKS_PROXY_PORT || undefined,
+    tls: {
+      rejectUnauthorized: false,
+      checkServerIdentity: () => undefined,
+    },
+  });
+} else {
+  httpsAgent = new https.Agent({
     rejectUnauthorized,
     ca: tlsCertData,
-});
+  });
+}
 
+axios.defaults.httpAgent = httpsAgent;
 axios.defaults.httpsAgent = httpsAgent;
 
 interface GraphUpdateResult {
-  result: {
-    // eslint-disable-next-line @typescript-eslint/naming-convention
+  error?: {
+    code: number;
+    message?: string;
+    details: any;
+  };
+  result?: {
     node_updates: [];
-    // eslint-disable-next-line @typescript-eslint/naming-convention
     channel_updates: [];
-    // eslint-disable-next-line @typescript-eslint/naming-convention
     closed_chans: [];
   };
 }
@@ -82,6 +100,7 @@ export class LndService {
     this.ws = new WebSocket(
       `${this.lndRestApiWsUrl}/v1/graph/subscribe?method=GET`,
       {
+        agent: httpsAgent,
         rejectUnauthorized,
         ca: tlsCertData,
         headers: {
@@ -100,9 +119,13 @@ export class LndService {
     this.ws.on('error', (err: Error) => {
       console.log(`Error: ${err}`);
     });
-    this.ws.on('ping', (event: Buffer) => {});
+    this.ws.on('ping', (_event: Buffer) => {});
     this.ws.on('message', (event: WebSocket.RawData) => {
       const data: GraphUpdateResult = JSON.parse(event.toString());
+      if (data.error) {
+        console.log(data.error);
+        return;
+      }
 
       if (data.result.node_updates.length) {
         this.nodeUpdateSubject.next(data.result.node_updates);