feat(cloud): Add CloudCredentials class and bearer token authentication support

airbyte/cloud/__init__.py

@@ -53,6 +53,7 @@
 
 from typing import TYPE_CHECKING
 
+from airbyte.cloud.client_config import CloudClientConfig
 from airbyte.cloud.connections import CloudConnection
 from airbyte.cloud.constants import JobStatusEnum
 from airbyte.cloud.sync_results import SyncResult
@@ -62,18 +63,20 @@
 # Submodules imported here for documentation reasons: https://github.com/mitmproxy/pdoc/issues/757
 if TYPE_CHECKING:
     # ruff: noqa: TC004
-    from airbyte.cloud import connections, constants, sync_results, workspaces
+    from airbyte.cloud import client_config, connections, constants, sync_results, workspaces
 
 
 __all__ = [
     # Submodules
     "workspaces",
     "connections",
     "constants",
+    "client_config",
     "sync_results",
     # Classes
     "CloudWorkspace",
     "CloudConnection",
+    "CloudClientConfig",
     "SyncResult",
     # Enums
     "JobStatusEnum",

airbyte/cloud/auth.py

@@ -6,6 +6,31 @@
 from airbyte.secrets.util import get_secret, try_get_secret
 
 
+def resolve_cloud_bearer_token(
+    input_value: str | SecretString | None = None,
+    /,
+) -> SecretString | None:
+    """Get the Airbyte Cloud bearer token from the environment.
+
+    Unlike other resolve functions, this returns None if no bearer token is found,
+    since bearer token authentication is optional (client credentials can be used instead).
+
+    Args:
+        input_value: Optional explicit bearer token value. If provided, it will be
+            returned directly (wrapped in SecretString if needed).
+
+    Returns:
+        The bearer token as a SecretString, or None if not found.
+    """
+    if input_value is not None:
+        return SecretString(input_value)
+
+    result = try_get_secret(constants.CLOUD_BEARER_TOKEN_ENV_VAR, default=None)
+    if result:
+        return SecretString(result)
+    return None
+
+
 def resolve_cloud_client_secret(
     input_value: str | SecretString | None = None,
     /,

airbyte/cloud/client_config.py

@@ -0,0 +1,189 @@
+# Copyright (c) 2024 Airbyte, Inc., all rights reserved.
+"""Cloud client configuration for Airbyte Cloud API authentication.
+
+This module provides the CloudClientConfig class for managing authentication
+credentials and API configuration when connecting to Airbyte Cloud, OSS, or
+Enterprise instances.
+
+Two authentication methods are supported (mutually exclusive):
+1. OAuth2 client credentials (client_id + client_secret)
+2. Bearer token authentication
+
+Example usage with client credentials:
+    ```python
+    from airbyte.cloud.client_config import CloudClientConfig
+
+    config = CloudClientConfig(
+        client_id="your-client-id",
+        client_secret="your-client-secret",
+    )
+    ```
+
+Example usage with bearer token:
+    ```python
+    from airbyte.cloud.client_config import CloudClientConfig
+
+    config = CloudClientConfig(
+        bearer_token="your-bearer-token",
+    )
+    ```
+
+Example using environment variables:
+    ```python
+    from airbyte.cloud.client_config import CloudClientConfig
+
+    # Resolves from AIRBYTE_CLOUD_CLIENT_ID, AIRBYTE_CLOUD_CLIENT_SECRET,
+    # AIRBYTE_CLOUD_BEARER_TOKEN, and AIRBYTE_CLOUD_API_URL environment variables
+    config = CloudClientConfig.from_env()
+    ```
+"""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from airbyte._util import api_util
+from airbyte.cloud.auth import (
+    resolve_cloud_api_url,
+    resolve_cloud_bearer_token,
+    resolve_cloud_client_id,
+    resolve_cloud_client_secret,
+)
+from airbyte.exceptions import PyAirbyteInputError
+from airbyte.secrets.base import SecretString
+
+
+@dataclass
+class CloudClientConfig:
+    """Client configuration for Airbyte Cloud API.
+
+    This class encapsulates the authentication and API configuration needed to connect
+    to Airbyte Cloud, OSS, or Enterprise instances. It supports two mutually
+    exclusive authentication methods:
+
+    1. OAuth2 client credentials flow (client_id + client_secret)
+    2. Bearer token authentication
+
+    Exactly one authentication method must be provided. Providing both or neither
+    will raise a validation error.
+
+    Attributes:
+        client_id: OAuth2 client ID for client credentials flow.
+        client_secret: OAuth2 client secret for client credentials flow.
+        bearer_token: Pre-generated bearer token for direct authentication.
+        api_root: The API root URL. Defaults to Airbyte Cloud API.
+    """
+
+    client_id: SecretString | None = None
+    """OAuth2 client ID for client credentials authentication."""
+
+    client_secret: SecretString | None = None
+    """OAuth2 client secret for client credentials authentication."""
+
+    bearer_token: SecretString | None = None
+    """Bearer token for direct authentication (alternative to client credentials)."""
+
+    api_root: str = api_util.CLOUD_API_ROOT
+    """The API root URL. Defaults to Airbyte Cloud API."""
+
+    def __post_init__(self) -> None:
+        """Validate credentials and ensure secrets are properly wrapped."""
+        # Wrap secrets in SecretString if they aren't already
+        if self.client_id is not None:
+            self.client_id = SecretString(self.client_id)
+        if self.client_secret is not None:
+            self.client_secret = SecretString(self.client_secret)
+        if self.bearer_token is not None:
+            self.bearer_token = SecretString(self.bearer_token)
+
+        # Validate mutual exclusivity
+        has_client_credentials = self.client_id is not None or self.client_secret is not None
+        has_bearer_token = self.bearer_token is not None
+
+        if has_client_credentials and has_bearer_token:
+            raise PyAirbyteInputError(
+                message="Cannot use both client credentials and bearer token authentication.",
+                guidance=(
+                    "Provide either client_id and client_secret together, "
+                    "or bearer_token alone, but not both."
+                ),
+            )
+
+        if has_client_credentials and (self.client_id is None or self.client_secret is None):
+            # If using client credentials, both must be provided
+            raise PyAirbyteInputError(
+                message="Incomplete client credentials.",
+                guidance=(
+                    "When using client credentials authentication, "
+                    "both client_id and client_secret must be provided."
+                ),
+            )
+
+        if not has_client_credentials and not has_bearer_token:
+            raise PyAirbyteInputError(
+                message="No authentication credentials provided.",
+                guidance=(
+                    "Provide either client_id and client_secret together for OAuth2 "
+                    "client credentials flow, or bearer_token for direct authentication."
+                ),
+            )
+
+    @property
+    def uses_bearer_token(self) -> bool:
+        """Return True if using bearer token authentication."""
+        return self.bearer_token is not None
+
+    @property
+    def uses_client_credentials(self) -> bool:
+        """Return True if using client credentials authentication."""
+        return self.client_id is not None and self.client_secret is not None
+
+    @classmethod
+    def from_env(
+        cls,
+        *,
+        api_root: str | None = None,
+    ) -> CloudClientConfig:
+        """Create CloudClientConfig from environment variables.
+
+        This factory method resolves credentials from environment variables,
+        providing a convenient way to create credentials without explicitly
+        passing secrets.
+
+        Environment variables used:
+            - `AIRBYTE_CLOUD_CLIENT_ID`: OAuth client ID (for client credentials flow).
+            - `AIRBYTE_CLOUD_CLIENT_SECRET`: OAuth client secret (for client credentials flow).
+            - `AIRBYTE_CLOUD_BEARER_TOKEN`: Bearer token (alternative to client credentials).
+            - `AIRBYTE_CLOUD_API_URL`: Optional. The API root URL (defaults to Airbyte Cloud).
+
+        The method will first check for a bearer token. If not found, it will
+        attempt to use client credentials.
+
+        Args:
+            api_root: The API root URL. If not provided, will be resolved from
+                the `AIRBYTE_CLOUD_API_URL` environment variable, or default to
+                the Airbyte Cloud API.
+
+        Returns:
+            A CloudClientConfig instance configured with credentials from the environment.
+
+        Raises:
+            PyAirbyteSecretNotFoundError: If required credentials are not found in
+                the environment.
+        """
+        resolved_api_root = resolve_cloud_api_url(api_root)
+
+        # Try bearer token first
+        bearer_token = resolve_cloud_bearer_token()
+        if bearer_token:
+            return cls(
+                bearer_token=bearer_token,
+                api_root=resolved_api_root,
+            )
+
+        # Fall back to client credentials
+        return cls(
+            client_id=resolve_cloud_client_id(),
+            client_secret=resolve_cloud_client_secret(),
+            api_root=resolved_api_root,
+        )

airbyte/cloud/connections.py

@@ -62,6 +62,7 @@ def _fetch_connection_info(self) -> ConnectionResponse:
             api_root=self.workspace.api_root,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
         )
 
     @classmethod
@@ -180,6 +181,7 @@ def run_sync(
             workspace_id=self.workspace.workspace_id,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
         )
         sync_result = SyncResult(
             workspace=self.workspace,
@@ -242,6 +244,7 @@ def get_previous_sync_logs(
             order_by=order_by,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
         )
         return [
             SyncResult(
@@ -298,6 +301,7 @@ def get_state_artifacts(self) -> list[dict[str, Any]] | None:
             api_root=self.workspace.api_root,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
         )
         if state_response.get("stateType") == "not_set":
             return None
@@ -319,6 +323,7 @@ def get_catalog_artifact(self) -> dict[str, Any] | None:
             api_root=self.workspace.api_root,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
         )
         return connection_response.get("syncCatalog")
 
@@ -336,6 +341,7 @@ def rename(self, name: str) -> CloudConnection:
             api_root=self.workspace.api_root,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
             name=name,
         )
         self._connection_info = updated_response
@@ -355,6 +361,7 @@ def set_table_prefix(self, prefix: str) -> CloudConnection:
             api_root=self.workspace.api_root,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
             prefix=prefix,
         )
         self._connection_info = updated_response
@@ -379,6 +386,7 @@ def set_selected_streams(self, stream_names: list[str]) -> CloudConnection:
             api_root=self.workspace.api_root,
             client_id=self.workspace.client_id,
             client_secret=self.workspace.client_secret,
+            bearer_token=self.workspace.bearer_token,
             configurations=configurations,
         )
         self._connection_info = updated_response