Move validate_grafana_token_format to common location, use in sync_v2 (#4919)

# What this PR does
Moves validate_grafana_token_format to GrafanaAPIClient, use it in
sync_v2 to improve logging and skip requests that would not work.

## Which issue(s) this PR closes

Related to [issue link here]

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## Checklist

- [x] Unit, integration, and e2e (if applicable) tests updated
- [x] Documentation added (or `pr:no public docs` PR label added if not
required)
- [x] Added the relevant release notes label (see labels prefixed w/
`release:`). These labels dictate how your PR will
    show up in the autogenerated release notes.

engine/apps/grafana_plugin/helpers/client.py

@@ -166,6 +166,8 @@ class GrafanaAPIClient(APIClient):
 
     USER_PERMISSION_ENDPOINT = f"api/access-control/users/permissions/search?actionPrefix={ACTION_PREFIX}"
 
+    MIN_GRAFANA_TOKEN_LENGTH = 16
+
     class Types:
         class _BaseGrafanaAPIResponse(typing.TypedDict):
             totalCount: int
@@ -330,6 +332,14 @@ class GrafanaAPIClient(APIClient):
     def sync(self) -> APIClientResponse:
         return self.api_post("api/plugins/grafana-oncall-app/resources/plugin/sync")
 
+    @staticmethod
+    def validate_grafana_token_format(grafana_token: str) -> bool:
+        if not grafana_token or not isinstance(grafana_token, str):
+            return False
+        if len(grafana_token) < GrafanaAPIClient.MIN_GRAFANA_TOKEN_LENGTH:
+            return False
+        return True
+
 
 class GcomAPIClient(APIClient):
     ACTIVE_INSTANCE_QUERY = "instances?status=active"

engine/apps/grafana_plugin/helpers/gcom.py

@@ -6,13 +6,12 @@ from django.utils import timezone
 
 from apps.auth_token.exceptions import InvalidToken
 from apps.auth_token.models import PluginAuthToken
-from apps.grafana_plugin.helpers import GcomAPIClient
+from apps.grafana_plugin.helpers import GcomAPIClient, GrafanaAPIClient
 from apps.user_management.models import Organization
 
 logger = logging.getLogger(__name__)
 logger.setLevel(logging.DEBUG)
 GCOM_TOKEN_CHECK_PERIOD = timezone.timedelta(minutes=60)
-MIN_GRAFANA_TOKEN_LENGTH = 16
 
 
 class GcomToken:
@@ -20,14 +19,6 @@ class GcomToken:
         self.organization = organization
 
 
-def _validate_grafana_token_format(grafana_token: str) -> bool:
-    if not grafana_token or not isinstance(grafana_token, str):
-        return False
-    if len(grafana_token) < MIN_GRAFANA_TOKEN_LENGTH:
-        return False
-    return True
-
-
 def check_gcom_permission(token_string: str, context) -> GcomToken:
     """
     Verify that request from plugin is valid. Check it and synchronize the organization details
@@ -54,7 +45,7 @@ def check_gcom_permission(token_string: str, context) -> GcomToken:
     if not instance_info or str(instance_info["orgId"]) != org_id:
         raise InvalidToken
 
-    grafana_token_format_is_valid = _validate_grafana_token_format(grafana_token)
+    grafana_token_format_is_valid = GrafanaAPIClient.validate_grafana_token_format(grafana_token)
 
     if not organization:
         from apps.base.models import DynamicSetting

engine/apps/grafana_plugin/tasks/sync_v2.py

@@ -41,7 +41,7 @@ def sync_organizations_v2(org_ids=None):
             orgs_per_second = math.ceil(len(organization_qs) / SYNC_PERIOD.seconds)
             logger.info(f"Syncing {len(organization_qs)} organizations @ {orgs_per_second} per 1s pause")
             for idx, org in enumerate(organization_qs):
-                if org.api_token:
+                if GrafanaAPIClient.validate_grafana_token_format(org.api_token):
                     client = GrafanaAPIClient(api_url=org.grafana_url, api_token=org.api_token)
                     _, status = client.sync()
                     if status["status_code"] != 200:
@@ -52,6 +52,6 @@ def sync_organizations_v2(org_ids=None):
                         logger.info(f"Sleep 1s after {idx + 1} organizations processed")
                         sleep(1)
                 else:
-                    logger.info(f"Skipping stack_slug={org.stack_slug}, api_token is not set")
+                    logger.info(f"Skipping stack_slug={org.stack_slug}, api_token format is invalid or not set")
         else:
             logger.info(f"Issuing sync requests already in progress lock_id={lock_id}, check slow outgoing requests")

engine/apps/grafana_plugin/tests/test_sync_v2.py

@@ -51,7 +51,8 @@ def test_invalid_auth(make_organization_and_user_with_plugin_token, make_user_au
     "api_token, sync_called",
     [
         ("", False),
-        ("abc", True),
+        ("abc", False),
+        ("glsa_abcdefghijklmnopqrstuvwxyz", True),
     ],
 )
 @pytest.mark.django_db