src/fastmcp/server/auth/auth.py

from mcp.server.auth.provider import (
    AccessToken,
    AuthorizationCode,
    OAuthAuthorizationServerProvider,
    RefreshToken,
)
from mcp.server.auth.settings import (
    ClientRegistrationOptions,
    RevocationOptions,
)
from pydantic import AnyHttpUrl


class OAuthProvider(
    OAuthAuthorizationServerProvider[AuthorizationCode, RefreshToken, AccessToken]
):
    def __init__(
        self,
        issuer_url: AnyHttpUrl | str,
        service_documentation_url: AnyHttpUrl | str | None = None,
        client_registration_options: ClientRegistrationOptions | None = None,
        revocation_options: RevocationOptions | None = None,
        required_scopes: list[str] | None = None,
    ):
        """
        Initialize the OAuth provider.

        Args:
            issuer_url: The URL of the OAuth issuer.
            service_documentation_url: The URL of the service documentation.
            client_registration_options: The client registration options.
            revocation_options: The revocation options.
            required_scopes: Scopes that are required for all requests.
        """
        super().__init__()
        if isinstance(issuer_url, str):
            issuer_url = AnyHttpUrl(issuer_url)
        if isinstance(service_documentation_url, str):
            service_documentation_url = AnyHttpUrl(service_documentation_url)

        self.issuer_url = issuer_url
        self.service_documentation_url = service_documentation_url
        self.client_registration_options = client_registration_options
        self.revocation_options = revocation_options
        self.required_scopes = required_scopes