Repository: Significant-Gravitas/Auto-GPT
File: autogpt_platform/backend/backend/data/block.py (Python)

Code before:

    # Check required credentials fields
    required_fields: set[str] = block.input_schema.get_required_fields()
    required_credentials = [f for f in credentials_fields if f in required_fields]

    if len(required_credentials) == 0:
        logger.debug(
            f"Block {block_cls.__name__} has no required credentials fields - therefore will work without credentials configured"
        )
        return True

    if len(required_credentials) > 1:
        logger.warn(
            f"Block {block_cls.__name__} has multiple required credentials fields"
        )

    # Check if theres is any correctly configured credential provider for this block
    configured_providers = {field_name: [] for field_name in required_credentials}

    for field_name in required_credentials:
        provider_names = block.input_schema.get_provider_from_credentials_field(
            field_name
        )
        if not provider_names:
            configured_providers[field_name].append(True)
            continue

        for provider_name in provider_names:
            if not provider_name or provider_name in ProviderName.__members__.values():
                logger.debug(
                    f"Block {block_cls.__name__} is part of the legacy provider system - Treating as valid"
                )
                configured_providers[field_name] = [True]
                break

            provider = AutoRegistry.get_provider(provider_name)
            if not provider:
                logger.debug(
                    f"Block {block_cls.__name__} has a required credentials field {field_name} that has no provider - Treating as valid"
                )
                continue

            # Check the provider's supported auth types
            supported_types = provider.supported_auth_types

            # If provider has no supported auth types, it means no auth method is configured
            if not supported_types:
                # This provider has no authentication methods configured at all
                configured_providers[field_name].append(False)
                logger.debug(
                    f"Block {block_cls.__name__} has a required credentials field {field_name} but no authentication methods are configured"

Review comment (security):
If this happens, the block has a misconfigured credentials input, which we probably don't want to show in the UI:
```suggestion
        provider_names = block.input_schema.get_provider_from_credentials_field(
            field_name
        )
        if not provider_names:
            logger.warning(
                f"Block {block_cls.__name__} "
                f"has required credentials field {field_name} with no providers"
            )
            return False
```

Code after:
    # Check if the credential inputs for this block are correctly configured
    for field_name, field_info in credential_inputs.items():
        provider_names = field_info.provider
        if not provider_names:
            logger.warning(
                f"Block {block_cls.__name__} "
                f"has credential input '{field_name}' with no provider options"
                " - Disabling"
            )
            return False

        # If a field has multiple possible providers, each one needs to be usable to
        # prevent breaking the UX
        for _provider_name in provider_names:
            provider_name = _provider_name.value
            if provider_name in ProviderName.__members__.values():
                logger.debug(
                    f"Block {block_cls.__name__} credential input '{field_name}' "
                    f"provider '{provider_name}' is part of the legacy provider system"
                    " - Treating as valid"
                )
                break

            provider = AutoRegistry.get_provider(provider_name)
            if not provider:
                logger.warning(
                    f"Block {block_cls.__name__} credential input '{field_name}' "
                    f"refers to unknown provider '{provider_name}' - Disabling"
                )
                return False

            # Check the provider's supported auth types
            if field_info.supported_types != provider.supported_auth_types:
                logger.warning(
                    f"Block {block_cls.__name__} credential input '{field_name}' "
                    f"has mismatched supported auth types (field <> Provider): "
                    f"{field_info.supported_types} != {provider.supported_auth_types}"
                )

            if not (supported_auth_types := provider.supported_auth_types):
                # No auth methods are been configured for this provider
                logger.warning(
                    f"Block {block_cls.__name__} credential input '{field_name}' "
                    f"provider '{provider_name}' "
                    "has no authentication methods configured - Disabling"
                )
                return False

            # Check if provider supports OAuth
            if "oauth2" in supported_auth_types:
                # Check if OAuth environment variables are set