Fixing SSRC Typos and Minor Bugs (#841)

* Changes for percent comparison

* Fixing semantic version issues with invalid version

* Fixing Config values must retrun default values from invalid get operations

* Updating tolerance for percentage evaluation

* Removing dependency changes from fix branch

* Updating ServerConfig methods as per review changes

* Updating comments and vars for readability

* Added unit and integration tests

* Refactor and add unit test

* Implementation for Fetching and Caching Server Side Remote Config (#825)

* Minor update to API signature

* Updating init params for ServerTemplateData

* Adding validation errors and test

* Removing parameter groups

* Addressing PR comments and fixing async flow during fetch call

* Fixing lint issues

---------

Co-authored-by: Jonathan Edey <[email protected]>
Co-authored-by: Lahiru Maramba <[email protected]>
Co-authored-by: Pijush Chakraborty <[email protected]>
Co-authored-by: varun rathore <[email protected]>
Co-authored-by: Varun Rathore <[email protected]>

Author: 6 people

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "pip"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/ci.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ['3.8', '3.9', '3.10', '3.11', '3.12', 'pypy3.8']
+        python: ['3.8', '3.9', '3.10', '3.11', '3.12', 'pypy3.9']
 
     steps:
     - uses: actions/checkout@v4

.github/workflows/release.yml

@@ -108,6 +108,7 @@ jobs:
       uses: actions/[email protected]
       with:
         name: dist
+        path: dist
 
     - name: Publish preflight check
       id: preflight

firebase_admin/__about__.py

@@ -14,7 +14,7 @@
 
 """About information (version, etc) for Firebase Admin SDK."""
 
-__version__ = '6.5.0'
+__version__ = '6.6.0'
 __title__ = 'firebase_admin'
 __author__ = 'Firebase'
 __license__ = 'Apache License 2.0'

firebase_admin/__init__.py

@@ -18,6 +18,7 @@
 import os
 import threading
 
+from google.auth.credentials import Credentials as GoogleAuthCredentials
 from google.auth.exceptions import DefaultCredentialsError
 from firebase_admin import credentials
 from firebase_admin.__about__ import __version__
@@ -208,10 +209,13 @@ def __init__(self, name, credential, options):
                              'non-empty string.'.format(name))
         self._name = name
 
-        if not isinstance(credential, credentials.Base):
+        if isinstance(credential, GoogleAuthCredentials):
+            self._credential = credentials._ExternalCredentials(credential) # pylint: disable=protected-access
+        elif isinstance(credential, credentials.Base):
+            self._credential = credential
+        else:
             raise ValueError('Illegal Firebase credential provided. App must be initialized '
                              'with a valid credential instance.')
-        self._credential = credential
         self._options = _AppOptions(options)
         self._lock = threading.RLock()
         self._services = {}

firebase_admin/_http_client.py

@@ -21,6 +21,7 @@
 import requests
 from requests.packages.urllib3.util import retry # pylint: disable=import-error
 
+from firebase_admin import _utils
 
 if hasattr(retry.Retry.DEFAULT, 'allowed_methods'):
     _ANY_METHOD = {'allowed_methods': None}
@@ -36,6 +37,9 @@
 
 DEFAULT_TIMEOUT_SECONDS = 120
 
+METRICS_HEADERS = {
+    'X-GOOG-API-CLIENT': _utils.get_metrics_header(),
+}
 
 class HttpClient:
     """Base HTTP client used to make HTTP calls.
@@ -72,6 +76,7 @@ def __init__(
 
         if headers:
             self._session.headers.update(headers)
+        self._session.headers.update(METRICS_HEADERS)
         if retries:
             self._session.mount('http://', requests.adapters.HTTPAdapter(max_retries=retries))
             self._session.mount('https://', requests.adapters.HTTPAdapter(max_retries=retries))

firebase_admin/_utils.py

@@ -15,6 +15,7 @@
 """Internal utilities common to all modules."""
 
 import json
+from platform import python_version
 
 import google.auth
 import requests
@@ -75,6 +76,8 @@
     16: exceptions.UNAUTHENTICATED,
 }
 
+def get_metrics_header():
+    return f'gl-python/{python_version()} fire-admin/{firebase_admin.__version__}'
 
 def _get_initialized_app(app):
     """Returns a reference to an initialized App instance."""

firebase_admin/app_check.py

@@ -51,6 +51,10 @@ class _AppCheckService:
     _scoped_project_id = None
     _jwks_client = None
 
+    _APP_CHECK_HEADERS = {
+        'X-GOOG-API-CLIENT': _utils.get_metrics_header(),
+    }
+
     def __init__(self, app):
         # Validate and store the project_id to validate the JWT claims
         self._project_id = app.project_id
@@ -62,7 +66,8 @@ def __init__(self, app):
                 'GOOGLE_CLOUD_PROJECT environment variable.')
         self._scoped_project_id = 'projects/' + app.project_id
         # Default lifespan is 300 seconds (5 minutes) so we change it to 21600 seconds (6 hours).
-        self._jwks_client = PyJWKClient(self._JWKS_URL, lifespan=21600)
+        self._jwks_client = PyJWKClient(
+            self._JWKS_URL, lifespan=21600, headers=self._APP_CHECK_HEADERS)
 
 
     def verify_token(self, token: str) -> Dict[str, Any]:

firebase_admin/credentials.py

@@ -18,6 +18,7 @@
 import pathlib
 
 import google.auth
+from google.auth.credentials import Credentials as GoogleAuthCredentials
 from google.auth.transport import requests
 from google.oauth2 import credentials
 from google.oauth2 import service_account
@@ -58,6 +59,19 @@ def get_credential(self):
         """Returns the Google credential instance used for authentication."""
         raise NotImplementedError
 
+class _ExternalCredentials(Base):
+    """A wrapper for google.auth.credentials.Credentials typed credential instances"""
+
+    def __init__(self, credential: GoogleAuthCredentials):
+        super(_ExternalCredentials, self).__init__()
+        self._g_credential = credential
+
+    def get_credential(self):
+        """Returns the underlying Google Credential
+
+        Returns:
+          google.auth.credentials.Credentials: A Google Auth credential instance."""
+        return self._g_credential
 
 class Certificate(Base):
     """A credential initialized from a JSON certificate keyfile."""

firebase_admin/firestore.py

@@ -18,59 +18,75 @@
 Firebase apps. This requires the ``google-cloud-firestore`` Python module.
 """
 
+from __future__ import annotations
+from typing import Optional, Dict
+from firebase_admin import App
+from firebase_admin import _utils
+
 try:
-    from google.cloud import firestore # pylint: disable=import-error,no-name-in-module
+    from google.cloud import firestore
+    from google.cloud.firestore_v1.base_client import DEFAULT_DATABASE
     existing = globals().keys()
     for key, value in firestore.__dict__.items():
         if not key.startswith('_') and key not in existing:
             globals()[key] = value
-except ImportError:
+except ImportError as error:
     raise ImportError('Failed to import the Cloud Firestore library for Python. Make sure '
-                      'to install the "google-cloud-firestore" module.')
-
-from firebase_admin import _utils
+                      'to install the "google-cloud-firestore" module.') from error
 
 
 _FIRESTORE_ATTRIBUTE = '_firestore'
 
 
-def client(app=None) -> firestore.Client:
+def client(app: Optional[App] = None, database_id: Optional[str] = None) -> firestore.Client:
     """Returns a client that can be used to interact with Google Cloud Firestore.
 
     Args:
-      app: An App instance (optional).
+        app: An App instance (optional).
+        database_id: The database ID of the Google Cloud Firestore database to be used.
+            Defaults to the default Firestore database ID if not specified or an empty string
+            (optional).
 
     Returns:
-      google.cloud.firestore.Firestore: A `Firestore Client`_.
+        google.cloud.firestore.Firestore: A `Firestore Client`_.
 
     Raises:
-      ValueError: If a project ID is not specified either via options, credentials or
-          environment variables, or if the specified project ID is not a valid string.
+        ValueError: If the specified database ID is not a valid string, or if a project ID is not
+            specified either via options, credentials or environment variables, or if the specified
+            project ID is not a valid string.
 
-    .. _Firestore Client: https://googlecloudplatform.github.io/google-cloud-python/latest\
-          /firestore/client.html
+    .. _Firestore Client: https://cloud.google.com/python/docs/reference/firestore/latest/\
+        google.cloud.firestore_v1.client.Client
     """
-    fs_client = _utils.get_app_service(app, _FIRESTORE_ATTRIBUTE, _FirestoreClient.from_app)
-    return fs_client.get()
-
-
-class _FirestoreClient:
-    """Holds a Google Cloud Firestore client instance."""
-
-    def __init__(self, credentials, project):
-        self._client = firestore.Client(credentials=credentials, project=project)
-
-    def get(self):
-        return self._client
-
-    @classmethod
-    def from_app(cls, app):
-        """Creates a new _FirestoreClient for the specified app."""
-        credentials = app.credential.get_credential()
-        project = app.project_id
-        if not project:
-            raise ValueError(
-                'Project ID is required to access Firestore. Either set the projectId option, '
-                'or use service account credentials. Alternatively, set the GOOGLE_CLOUD_PROJECT '
-                'environment variable.')
-        return _FirestoreClient(credentials, project)
+    # Validate database_id
+    if database_id is not None and not isinstance(database_id, str):
+        raise ValueError(f'database_id "{database_id}" must be a string or None.')
+    fs_service = _utils.get_app_service(app, _FIRESTORE_ATTRIBUTE, _FirestoreService)
+    return fs_service.get_client(database_id)
+
+
+class _FirestoreService:
+    """Service that maintains a collection of firestore clients."""
+
+    def __init__(self, app: App) -> None:
+        self._app: App = app
+        self._clients: Dict[str, firestore.Client] = {}
+
+    def get_client(self, database_id: Optional[str]) -> firestore.Client:
+        """Creates a client based on the database_id. These clients are cached."""
+        database_id = database_id or DEFAULT_DATABASE
+        if database_id not in self._clients:
+            # Create a new client and cache it in _clients
+            credentials = self._app.credential.get_credential()
+            project = self._app.project_id
+            if not project:
+                raise ValueError(
+                    'Project ID is required to access Firestore. Either set the projectId option, '
+                    'or use service account credentials. Alternatively, set the '
+                    'GOOGLE_CLOUD_PROJECT environment variable.')
+
+            fs_client = firestore.Client(
+                credentials=credentials, project=project, database=database_id)
+            self._clients[database_id] = fs_client
+
+        return self._clients[database_id]