[Fix] remove trimspace in user authenticate

[ck89119]

What type of PR is this?

• API-change
• BUG
• Improvement
• Documentation
• Feature
• Test and CI
• Code Refactoring

Which issue(s) this PR fixes:

issue #15135

What this PR does / why we need it:

[Fix] remove trimspace in user authenticate

[matrix-meow]

@ck89119 Thanks for your contributions!

Pull Request Review:

Title:

The title of the pull request is clear and concise, indicating that the purpose of the PR is to fix an issue related to removing trimspace in user authentication.

Body:

The body of the pull request provides relevant information about the type of PR (BUG), the specific issue it fixes (issue #15135), and the reason for the PR (removing trimspace in user authenticate). It would be beneficial to include more details about why removing trimspace is necessary for user authentication.

Changes:

1. In the splitUserInput function in authenticate.go, the changes involve removing calls to strings.TrimSpace for the tenant, user, and role variables. While trimming spaces from user input is generally a good practice, in this context, removing trimspace may introduce potential issues.

Issues/Problems Identified:

1. Potential Input Validation Issue:
   • By removing the strings.TrimSpace calls, the code no longer trims leading and trailing spaces from the tenant, user, and role variables. This change could lead to unintended consequences such as allowing spaces in the input, which might affect the authentication process or introduce vulnerabilities.

Suggestions for Improvement:

1. Input Sanitization:

   • It is crucial to validate and sanitize user input to prevent injection attacks or unexpected behavior. Instead of completely removing strings.TrimSpace, consider modifying it to trim spaces only where necessary, ensuring that the input is clean and consistent.

2. Consistency in Input Handling:

   • Ensure a consistent approach to handling user input throughout the authentication process. If spaces are not allowed in certain fields, enforce validation rules consistently across all relevant functions.

3. Documentation Enhancement:

   • Provide detailed comments or documentation explaining the rationale behind trimming or not trimming spaces in user input. This will help future developers understand the decision-making process.

Overall Comments:

The pull request addresses a specific issue related to user authentication, but the removal of strings.TrimSpace without a clear explanation raises concerns about input validation and consistency. It is essential to carefully consider the impact of such changes on the security and functionality of the authentication process. By enhancing input validation and maintaining a consistent approach to handling user input, the codebase can be improved in terms of security and reliability.

It is recommended to revise the changes to ensure that input validation is robust and consistent across the authentication process. Additionally, providing more context in the PR body about the necessity of removing trimspace would help in understanding the decision better.