fix: UUID generation fail in docker env#529
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Shironex
commented
Jan 16, 2026
- Closes [Bug]: GitHubIssuesView] Convert to task error: TypeError: crypto.randomUUID is not a function #526
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Summary of ChangesHello @Shironex, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed! This pull request addresses and resolves an issue where UUID generation could fail in certain environments, specifically within Docker containers, by implementing a more resilient UUID generation strategy. It introduces a new, centralized utility function that intelligently selects the most appropriate and available method for creating UUIDs, complete with fallbacks. This ensures that unique identifiers are consistently and reliably generated, improving the application's stability and resolving issue #526. Highlights
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Code Review
This pull request introduces a robust generateUUID utility function to address failures of crypto.randomUUID in non-secure environments like Docker. The new function correctly falls back to crypto.getRandomValues and then to Math.random if necessary. The changes across the codebase consistently adopt this new utility. My review includes a minor refactoring suggestion for the generateUUID function to improve its structure and readability.
| // Use native randomUUID if available (secure contexts: HTTPS or localhost) | ||
| if (typeof crypto !== 'undefined' && typeof crypto.randomUUID === 'function') { | ||
| return crypto.randomUUID(); | ||
| } | ||
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| // Fallback using crypto.getRandomValues() (works in all modern browsers, including non-secure contexts) | ||
| if (typeof crypto !== 'undefined' && typeof crypto.getRandomValues === 'function') { | ||
| const bytes = new Uint8Array(16); | ||
| crypto.getRandomValues(bytes); | ||
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| // Set version (4) and variant (RFC 4122) bits | ||
| bytes[6] = (bytes[6] & 0x0f) | 0x40; // Version 4 | ||
| bytes[8] = (bytes[8] & 0x3f) | 0x80; // Variant RFC 4122 | ||
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| // Convert to hex string with proper UUID format | ||
| const hex = Array.from(bytes, (b) => b.toString(16).padStart(2, '0')).join(''); | ||
| return `${hex.slice(0, 8)}-${hex.slice(8, 12)}-${hex.slice(12, 16)}-${hex.slice(16, 20)}-${hex.slice(20)}`; | ||
| } | ||
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| // Last resort fallback using Math.random() - less secure but ensures functionality | ||
| return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => { | ||
| const r = (Math.random() * 16) | 0; | ||
| const v = c === 'x' ? r : (r & 0x3) | 0x8; | ||
| return v.toString(16); | ||
| }); |
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For better readability and to avoid redundant checks, you can group the crypto related logic under a single typeof crypto !== 'undefined' check. This makes the code slightly cleaner and more efficient by checking for the existence of the crypto object only once.
if (typeof crypto !== 'undefined') {
// Use native randomUUID if available (secure contexts: HTTPS or localhost)
if (typeof crypto.randomUUID === 'function') {
return crypto.randomUUID();
}
// Fallback using crypto.getRandomValues() (works in all modern browsers, including non-secure contexts)
if (typeof crypto.getRandomValues === 'function') {
const bytes = new Uint8Array(16);
crypto.getRandomValues(bytes);
// Set version (4) and variant (RFC 4122) bits
bytes[6] = (bytes[6] & 0x0f) | 0x40; // Version 4
bytes[8] = (bytes[8] & 0x3f) | 0x80; // Variant RFC 4122
// Convert to hex string with proper UUID format
const hex = Array.from(bytes, (b) => b.toString(16).padStart(2, '0')).join('');
return `${hex.slice(0, 8)}-${hex.slice(8, 12)}-${hex.slice(12, 16)}-${hex.slice(16, 20)}-${hex.slice(20)}`;
}
}
// Last resort fallback using Math.random() - less secure but ensures functionality
return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, (c) => {
const r = (Math.random() * 16) | 0;
const v = c === 'x' ? r : (r & 0x3) | 0x8;
return v.toString(16);
});|
LGTM, tested it and it works fine for me |