From f36f4b5398561dcf7365729c530f5b1868c6b994 Mon Sep 17 00:00:00 2001
From: rectcoordsystem <heohyun73@gmail.com>
Date: Wed, 6 Nov 2024 05:31:11 +0900
Subject: fix(backend): check target IP before sending HTTP request

---
 packages/backend/src/core/DownloadService.ts | 22 ----------------------
 1 file changed, 22 deletions(-)

(limited to 'packages/backend/src/core/DownloadService.ts')

diff --git a/packages/backend/src/core/DownloadService.ts b/packages/backend/src/core/DownloadService.ts
index 0e992f05de..05b9e64a37 100644
--- a/packages/backend/src/core/DownloadService.ts
+++ b/packages/backend/src/core/DownloadService.ts
@@ -6,7 +6,6 @@
 import * as fs from 'node:fs';
 import * as stream from 'node:stream/promises';
 import { Inject, Injectable } from '@nestjs/common';
-import ipaddr from 'ipaddr.js';
 import chalk from 'chalk';
 import got, * as Got from 'got';
 import { parse } from 'content-disposition';
@@ -70,13 +69,6 @@ export class DownloadService {
 			},
 			enableUnixSockets: false,
 		}).on('response', (res: Got.Response) => {
-			if ((process.env.NODE_ENV === 'production' || process.env.NODE_ENV === 'test') && !this.config.proxy && res.ip) {
-				if (this.isPrivateIp(res.ip)) {
-					this.logger.warn(`Blocked address: ${res.ip}`);
-					req.destroy();
-				}
-			}
-
 			const contentLength = res.headers['content-length'];
 			if (contentLength != null) {
 				const size = Number(contentLength);
@@ -139,18 +131,4 @@ export class DownloadService {
 			cleanup();
 		}
 	}
-
-	@bindThis
-	private isPrivateIp(ip: string): boolean {
-		const parsedIp = ipaddr.parse(ip);
-
-		for (const net of this.config.allowedPrivateNetworks ?? []) {
-			const cidr = ipaddr.parseCIDR(net);
-			if (cidr[0].kind() === parsedIp.kind() && parsedIp.match(ipaddr.parseCIDR(net))) {
-				return false;
-			}
-		}
-
-		return parsedIp.range() !== 'unicast';
-	}
 }
-- 
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