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fix(browser-use): harden browser settings state

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This commit is contained in:
Simos Mikelatos
2026-06-24 15:36:25 +00:00
parent 8c31ebcc63
commit 9457651fdd
9 changed files with 180 additions and 27 deletions
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48
server/modules/browser-use/browser-use.settings.ts
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@@ -1,4 +1,5 @@
import { randomBytes } from 'node:crypto';
import fs from 'node:fs';
import os from 'node:os';
import path from 'node:path';
@@ -9,6 +10,7 @@ import type { BrowserUseBackend, BrowserUseSettings } from './browser-use.types.
const IS_PLATFORM = process.env.VITE_IS_PLATFORM === 'true';
const BROWSER_USE_SETTINGS_KEY = 'browser_use_settings';
const BROWSER_USE_MCP_TOKEN_KEY = 'browser_use_mcp_token';
const MAX_PROFILE_NAME_LENGTH = 80;
export const DEFAULT_BROWSER_USE_SETTINGS: BrowserUseSettings = {
enabled: false,
@@ -26,12 +28,18 @@ export function normalizeBrowserBackend(value: unknown): BrowserUseBackend {
}
export function normalizeProfileName(profileName?: string | null): string | null {
const normalized = String(profileName || '').trim();
const normalized = String(profileName || '')
.trim()
.toLowerCase()
.replace(/[^a-z0-9._-]+/g, '-')
.replace(/^-+|-+$/g, '')
.slice(0, MAX_PROFILE_NAME_LENGTH)
.replace(/^-+|-+$/g, '');
if (!normalized) {
return null;
}
return normalized.slice(0, 80);
return /[a-z0-9]/.test(normalized) ? normalized : null;
}
export function normalizeDefaultProfileName(profileName?: string | null): string {
@@ -40,19 +48,43 @@ export function normalizeDefaultProfileName(profileName?: string | null): string
export function resolveSessionProfileName(settings: BrowserUseSettings, profileName?: string | null): string | null {
const requestedProfileName = normalizeProfileName(profileName);
if (String(profileName || '').trim() && !requestedProfileName) {
throw new Error('Browser profile name must include at least one letter or number.');
}
if (requestedProfileName) {
validateRequestedProfileName(profileName, requestedProfileName);
return requestedProfileName;
}
return settings.persistSessions ? normalizeDefaultProfileName(settings.defaultProfileName) : null;
}
export function getProfilePath(profileName: string): string {
const safeName = profileName
.toLowerCase()
.replace(/[^a-z0-9._-]+/g, '-')
.replace(/^-+|-+$/g, '')
.slice(0, 80) || 'default';
return path.join(PROFILE_ROOT, safeName);
return path.join(PROFILE_ROOT, normalizeDefaultProfileName(profileName));
}
function validateRequestedProfileName(profileName: string | null | undefined, normalizedProfileName: string): void {
const requestedProfileName = String(profileName || '').trim();
const existingProfileName = findExistingProfileName(normalizedProfileName);
if (
existingProfileName
&& (requestedProfileName !== normalizedProfileName || existingProfileName !== normalizedProfileName)
) {
throw new Error(`Browser profile "${requestedProfileName}" resolves to existing profile "${existingProfileName}". Use "${normalizedProfileName}" instead.`);
}
}
function findExistingProfileName(normalizedProfileName: string): string | null {
try {
if (!fs.existsSync(PROFILE_ROOT)) {
return null;
}
const entries = fs.readdirSync(PROFILE_ROOT, { withFileTypes: true });
const match = entries.find((entry) => entry.isDirectory() && normalizeProfileName(entry.name) === normalizedProfileName);
return match?.name || null;
} catch {
return null;
}
}
export function useVisibleCamoufoxBackend(settings: BrowserUseSettings): boolean {