[BUG] GitHub OAuth Sign-In Skips Username Validation #139
Description
🔖 Bug ID
No response
📝 Bug Summary
When users sign in using GitHub OAuth, the returned GitHub username is not validated at all.
Unlike normal sign-up or manual username entry (which uses strict regex rules), the GitHub sign-in flow bypasses validation completely.
🔄 Steps to Reproduce
Sign in using GitHub OAuth.
After successful login, go to the Search page.
Try to open the profile returned in search results.
You will see that the username is not validated and appears in an invalid format, for example:
like @mohamed-sameh-albaz
🚨 Severity
Minor (low impact)
🎯 Priority
P0 (fix immediately)
❌ Actual Result
When mentioning (@username) or searching for a user, the system expects usernames that match the app’s username regex.
However, GitHub OAuth usernames do not follow this regex, so:
Search does not return the GitHub user
Mention autocomplete does not detect the user
GitHub username appears in an invalid format
✅ Expected Result
Usernames from GitHub should match the same regex rules used for mention and search
OR
GitHub usernames should be validated or normalized before saving so they become compatible with the regex
AND
📋 Error Messages/Logs
📸 Screenshots/Videos
No response