Reject whitespace characters in API path components

Co-authored-by: Shri Sukhani <shrisukhani@users.noreply.github.com>

Author: cursoragent

hyperbrowser/client/base.py

@@ -100,6 +100,8 @@ def _build_url(self, path: str) -> str:
             raise HyperbrowserError("path must not contain backslashes")
         if "\n" in decoded_path or "\r" in decoded_path:
             raise HyperbrowserError("path must not contain newline characters")
+        if any(character.isspace() for character in decoded_path):
+            raise HyperbrowserError("path must not contain whitespace characters")
         normalized_segments = [
             segment for segment in decoded_path.split("/") if segment
         ]

tests/test_url_building.py

@@ -136,6 +136,10 @@ def test_client_build_url_rejects_empty_or_non_string_paths():
             HyperbrowserError, match="path must not contain newline characters"
         ):
             client._build_url("/session\nnext")
+        with pytest.raises(
+            HyperbrowserError, match="path must not contain whitespace characters"
+        ):
+            client._build_url("/session name")
         with pytest.raises(HyperbrowserError, match="path must be a relative API path"):
             client._build_url("https://api.hyperbrowser.ai/session")
         with pytest.raises(HyperbrowserError, match="path must be a relative API path"):
@@ -182,6 +186,14 @@ def test_client_build_url_rejects_empty_or_non_string_paths():
             HyperbrowserError, match="path must not contain newline characters"
         ):
             client._build_url("/api/%250Asegment")
+        with pytest.raises(
+            HyperbrowserError, match="path must not contain whitespace characters"
+        ):
+            client._build_url("/api/%20segment")
+        with pytest.raises(
+            HyperbrowserError, match="path must not contain whitespace characters"
+        ):
+            client._build_url("/api/%09segment")
     finally:
         client.close()