LocalStrategy.validate lacked a try-catch, so infrastructure errors
(DB timeouts, bcrypt failures, null/undefined phone) escaped as raw
Error instances. LocalAuthGuard.handleRequest blindly re-threw them,
causing GlobalExceptionFilter to map them to 500 Internal Server Error
instead of 401 Unauthorized.
Changes:
- Add null/falsy guard for phone and password in LocalStrategy.validate
- Wrap validate body in try-catch; re-throw DomainExceptions, wrap
unexpected errors as UnauthorizedException (401)
- Add error type-checking in LocalAuthGuard.handleRequest: re-throw
HttpException subclasses directly, wrap other errors as 401
- Add @IsNotEmpty() validators to LoginDto for Swagger accuracy
- Add 5 new test cases covering undefined/null/empty inputs, DB
errors, and bcrypt failures
- Update guard tests for the new type-checking behaviour
Resolves TEC-1841
Co-Authored-By: Paperclip <noreply@paperclip.ing>
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