Allow trailing slashes in SDK client url (#5057)

CHANGELOG.md

@@ -37,6 +37,8 @@ non-ascii paths while adding files from "Connected file share" (issue #4428)
 - Fixed cvat-core ESlint problems (<https://github.com/opencv/cvat/pull/5027>)
 - Fixed task creation with non-local files via the SDK/CLI
   (<https://github.com/opencv/cvat/issues/4962>)
+- A trailing slash in hostname does't allow SDK to send some requests
+  (<https://github.com/opencv/cvat/pull/5057>)
 
 ### Security
 - TDB

cvat-sdk/cvat_sdk/core/client.py

@@ -98,6 +98,8 @@ def _validate_and_prepare_url(cls, url: str) -> str:
             schema = ""
             base_url = url
 
+        base_url = base_url.rstrip("/")
+
         if schema and schema not in cls.ALLOWED_SCHEMAS:
             raise InvalidHostException(
                 f"Invalid url schema '{schema}', expected "
@@ -279,7 +281,7 @@ class CVAT_API_V2:
     """Build parameterized API URLs"""
 
     def __init__(self, host: str):
-        self.host = host
+        self.host = host.rstrip("/")
         self.base = self.host + "/api/"
         self.git = self.host + "/git/repository/"
 
@@ -308,7 +310,7 @@ def make_endpoint_url(
 def make_client(
     host: str, *, port: Optional[int] = None, credentials: Optional[Tuple[int, int]] = None
 ) -> Client:
-    url = host
+    url = host.rstrip("/")
     if port:
         url = f"{url}:{port}"
 

tests/python/sdk/test_client.py

@@ -58,6 +58,19 @@ def test_can_get_server_version(self):
         assert (version.major, version.minor) >= (2, 0)
 
 
+def test_can_strip_trailing_slash_in_hostname_in_make_client(admin_user: str):
+    host, port = BASE_URL.split("://", maxsplit=1)[1].rsplit(":", maxsplit=1)
+
+    with make_client(host=host + "/", port=port, credentials=(admin_user, USER_PASS)) as client:
+        assert client.api_map.host == BASE_URL
+
+
+def test_can_strip_trailing_slash_in_hostname_in_client_ctor(admin_user: str):
+    with Client(url=BASE_URL + "/") as client:
+        client.login((admin_user, USER_PASS))
+        assert client.api_map.host == BASE_URL
+
+
 def test_can_detect_server_schema_if_not_provided():
     host, port = BASE_URL.split("://", maxsplit=1)[1].rsplit(":", maxsplit=1)
     client = make_client(host=host, port=int(port))