"""AWS authentication utilities."""
import boto3
def validate_aws_profile(profile_name: str) -> bool:
"""Validate that an AWS profile exists and is accessible.
Args:
profile_name: AWS profile name to validate
Returns:
True if profile is valid, False otherwise
"""
try:
session = boto3.Session(profile_name=profile_name)
# Try to get caller identity to validate credentials
sts = session.client("sts")
sts.get_caller_identity()
return True
except Exception:
return False
def list_available_profiles() -> list[str]:
"""List all available AWS profiles.
Returns:
List of profile names
"""
try:
session = boto3.Session()
return list(session.available_profiles)
except Exception:
return []
def get_default_region(profile_name: str | None = None) -> str | None:
"""Get default region for a profile.
Args:
profile_name: AWS profile name (uses default if None)
Returns:
Default region or None if not configured
"""
try:
session = boto3.Session(profile_name=profile_name)
region = session.region_name
return region if region is not None else None
except Exception:
return None
def validate_region(region: str) -> bool:
"""Validate AWS region using boto3's built-in region discovery.
Args:
region: AWS region to validate
Returns:
True if region is valid, False otherwise
"""
try:
return region in boto3.Session().get_available_regions("ec2")
except Exception:
# Fallback to common regions if boto3 call fails
common_regions = {
"us-east-1",
"us-east-2",
"us-west-1",
"us-west-2",
"eu-west-1",
"eu-central-1",
"ap-southeast-1",
"ap-northeast-1",
}
return region in common_regions
