Refactor enhance auth logic #23
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- Expand import to include dart:async for unawaited operation - Enhance documentation of completeEmailSignIn method - Refactor guest user sign-in logic to handle existing account check - Simplify _convertGuestUserToPermanent method by removing email conflict check
- Invalidate old guest token during account conversion - Update comments and step numbers in the login process - Add error logging for token invalidation
- Add current token extraction from Authorization header - Enhance anonymous-to-permanent account conversion - Support token invalidation in guest-to-permanent flow
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Summary of Changes
Hello @fulleni, 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 significantly refactors and enhances the authentication logic, particularly for guest users transitioning to permanent accounts. The completeEmailSignIn method has been updated to provide a more sophisticated flow, allowing guest users to either convert their temporary account into a new permanent one or sign into an existing permanent account if their email is already registered. This includes robust handling of token invalidation and guest account cleanup, leading to a more secure and seamless user experience.
Highlights
- Enhanced Guest User Authentication Flow: The
completeEmailSignInmethod now intelligently handles guest user sign-in attempts, distinguishing between converting a guest account to a new permanent one and signing into an existing permanent account. - Guest to Existing Account Sign-in: If a guest user signs in with an email already associated with a permanent account, the system now logs them into the existing account, invalidates their old guest token, and deletes the temporary guest account.
- Guest Account Conversion Refinement: The logic for converting a guest account to a new permanent account has been streamlined, with the responsibility of checking for existing emails moved to the
completeEmailSignInmethod, simplifying the_convertGuestUserToPermanenthelper. - Token Invalidation & Cleanup: The
completeEmailSignInmethod now accepts and uses the current authentication token to invalidate the old guest token upon successful sign-in or conversion. It also includes fire-and-forget cleanup for orphaned guest accounts.
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Code Review
This pull request refactors the authentication logic, primarily enhancing how guest users are handled when they sign in with an email. The new logic correctly distinguishes between converting a guest to a new permanent user and signing into a pre-existing account, abandoning the guest session. The changes are well-documented and improve the robustness of the sign-in flow. The review includes suggestions to refactor a portion of the logic to improve clarity and maintainability.
| // Extract the current token from the Authorization header, if it exists. | ||
| // This is needed for the guest-to-permanent flow to invalidate the old token. | ||
| final authHeader = context.request.headers[HttpHeaders.authorizationHeader]; | ||
| String? currentToken; | ||
| if (authHeader != null && authHeader.startsWith('Bearer ')) { | ||
| currentToken = authHeader.substring(7); | ||
| } |
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Consider extracting the token extraction logic into a separate helper function for better readability and maintainability. This also encapsulates the token format knowledge in one place.
String? _extractTokenFromHeader(Map<String, String> headers) {
final authHeader = headers[HttpHeaders.authorizationHeader];
if (authHeader != null && authHeader.startsWith('Bearer ')) {
return authHeader.substring(7);
}
return null;
}
// Usage:
final currentToken = _extractTokenFromHeader(context.request.headers);
Status
READY/IN DEVELOPMENT/HOLD
Description
Type of Change