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Securing websockets by frieck · Pull Request #1802 · evolution-foundation/evolution-api · GitHub

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Securing websockets #1802

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Merged
DavidsonGomes merged 3 commits into from
Aug 4, 2025
Conversation 9 Commits 3 Checks 1 Files changed
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Securing websockets #1802

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4f043f9
Securing websockets
frieck Aug 4, 2025
d4eb61f
Improving localhost check
frieck Aug 4, 2025
fb11f3f
Code quality
frieck Aug 4, 2025
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6 changes: 5 additions & 1 deletion src/api/integrations/event/websocket/websocket.controller.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -30,8 +30,12 @@ export class WebsocketController extends EventController implements EventControl
const url = new URL(req.url || '', 'http://localhost');
const params = new URLSearchParams(url.search);

const { remoteAddress } = req.socket;
const isLocalhost =
remoteAddress === '127.0.0.1' || remoteAddress === '::1' || remoteAddress === '::ffff:127.0.0.1';
Comment on lines +34 to +35

sourcery-ai Bot Aug 4, 2025

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Choose a reason Spam Abuse Off Topic Outdated Duplicate Resolved Low Quality

suggestion: Consider IPv6-mapped IPv4 and proxy scenarios for localhost detection.

This check may not handle all localhost scenarios, such as alternative IPv6-mapped formats or proxy headers like X-Forwarded-For. Consider updating the logic or documenting these limitations if relevant to your deployment.

// Permite conexões internas do Socket.IO (EIO=4 é o Engine.IO v4)
if (params.has('EIO')) {
if (params.has('EIO') && isLocalhost) {
return callback(null, true);
}

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