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Optimize application performance #84
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2 changes: 1 addition & 1 deletion
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apps/dashboard/app/(main)/organizations/[slug]/components/website-selector.tsx
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apps/dashboard/app/(main)/websites/[id]/_components/tabs/performance-tab.tsx
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3 changes: 2 additions & 1 deletion
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apps/dashboard/app/(main)/websites/[id]/_components/utils/add-filters.tsx
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apps/dashboard/app/(main)/websites/[id]/errors/_components/errors-page-content.tsx
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apps/dashboard/app/(main)/websites/[id]/funnels/_components/edit-funnel-dialog.tsx
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apps/dashboard/app/(main)/websites/[id]/goals/_components/edit-goal-dialog.tsx
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apps/dashboard/app/(main)/websites/[id]/revenue/hooks/use-website-revenue.ts
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apps/dashboard/app/(main)/websites/_components/website-card.tsx
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🛠️ Refactor suggestion
Short-circuit on missing User-Agent before running regex checks
Currently, detection scans all compiled regexes before checking for a missing UA, doing unnecessary work for bot/malformed requests. Early-return to avoid the scan.
export function detectBot( userAgent: string, request: Request ): { isBot: boolean; reason?: string; category?: string; botName?: string; } { - const ua = userAgent || ''; - - const detectedBot = compiledBotRegexes.find((bot) => bot.regex.test(ua)); - if (detectedBot) { - return { - isBot: true, - reason: 'known_bot_user_agent', - category: 'Known Bot', - botName: detectedBot.name, - }; - } - - if (!userAgent) { + if (!userAgent) { return { isBot: true, reason: 'missing_user_agent', category: 'Missing Headers', }; } + const ua = userAgent || ''; + + const detectedBot = compiledBotRegexes.find((bot) => bot.regex.test(ua)); + if (detectedBot) { + return { + isBot: true, + reason: 'known_bot_user_agent', + category: 'Known Bot', + botName: detectedBot.name, + }; + }Also applies to: 96-116
🧰 Tools
🪛 ast-grep (0.38.6)
[warning] 83-83: Regular expression constructed from variable input detected. This can lead to Regular Expression Denial of Service (ReDoS) attacks if the variable contains malicious patterns. Use libraries like 'recheck' to validate regex safety or use static patterns.
Context: new RegExp(bot.regex, 'i')
Note: [CWE-1333] Inefficient Regular Expression Complexity [REFERENCES]
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS
- https://cwe.mitre.org/data/definitions/1333.html
(regexp-from-variable)
🤖 Prompt for AI Agents
💡 Verification agent
🧩 Analysis chain
Mitigate potential ReDoS risk from variable-driven regex patterns
Static analysis correctly flags new RegExp(bot.regex, 'i'). While these patterns are internal (not user-supplied), an adversarial UA can still trigger worst-case backtracking. Consider:
I can add a build-time check that scans packages/shared/src/lists/bots.ts for potentially catastrophic patterns and surfaces a CI warning. Want me to draft that script?
🏁 Script executed:
Length of output: 6413
🏁 Script executed:
Length of output: 38333
Action: low immediate ReDoS risk — recommend adding a CI safe-regex scan (I can draft it)
Short summary:
Locations:
Recommended (minimal, prioritized):
Want me to draft the build-time script that scans packages/shared/src/lists/bots.ts and emits a CI warning/fail for risky patterns?
🧰 Tools
🪛 ast-grep (0.38.6)
[warning] 83-83: Regular expression constructed from variable input detected. This can lead to Regular Expression Denial of Service (ReDoS) attacks if the variable contains malicious patterns. Use libraries like 'recheck' to validate regex safety or use static patterns.
Context: new RegExp(bot.regex, 'i')
Note: [CWE-1333] Inefficient Regular Expression Complexity [REFERENCES]
- https://owasp.org/www-community/attacks/Regular_expression_Denial_of_Service_-_ReDoS
- https://cwe.mitre.org/data/definitions/1333.html
(regexp-from-variable)
🤖 Prompt for AI Agents