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Fix email resolution from Azure AD token claims

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Azure AD v1 access tokens (sts.windows.net issuer) use the 'upn' claim
for the user principal name/email, not 'email' or 'preferred_username'.
Add 'upn' as a fallback so email is correctly resolved on login.

Also add debug logging to show which claims are present.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Vadym Samoilenko 2026-03-03 15:55:00 +00:00
parent fa00a86777
commit dfb758fa61
1 changed files with 9 additions and 1 deletions
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10
backend/app/dependencies/auth.py
View file

@ -101,9 +101,17 @@ async def get_current_db_user(
detail="Missing user identifier in token claims",
)
# Azure AD v1 access tokens use 'upn'; v2/ID tokens use 'email' or 'preferred_username'
email = (
user_claims.get("email")
or user_claims.get("preferred_username")
or user_claims.get("upn")
or ""
)
logger.debug(f"[Auth] Resolved email='{email}' from claims keys: {list(user_claims.keys())}")
user = await user_repo.get_or_create_from_azure(
azure_ad_oid=azure_oid,
email=user_claims.get("email", user_claims.get("preferred_username", "")),
email=email,
name=user_claims.get("name", "Unknown"),
)