def get_principal_display_name()

in generators/frontend/templates/src/frontend/app.py [0:0]

• 9 lines of code
• 4 McCabe index (conditional complexity)

def get_principal_display_name():
    """
    Get the display name of the current user from the request headers.
    
    Extracts user information from the 'x-ms-client-principal' header used in 
    Azure Container Apps authentication.
    
    Returns:
        str: The user's display name if available, otherwise 'Default User'
        
    See https://learn.microsoft.com/en-us/azure/container-apps/authentication#access-user-claims-in-application-code for more information.
    """
    default_user_name = "Default User"
    principal = st.context.headers.get('x-ms-client-principal')
    if principal:
        principal = json.loads(base64.b64decode(principal).decode('utf-8'))
        claims = principal.get("claims", [])
        return next((claim["val"] for claim in claims if claim["typ"] == "name"), default_user_name)
    else:
        return default_user_name