openapi: Get parameters from requestBody too.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

zerver/openapi/curl_param_value_generators.py

@@ -84,8 +84,8 @@ def patch_openapi_example_values(
         if parameter.name in realm_example_values:
             parameter.example = realm_example_values[parameter.name]
 
-    if request_body is not None:
-        properties = request_body["content"]["multipart/form-data"]["schema"]["properties"]
+    if request_body is not None and "multipart/form-data" in (content := request_body["content"]):
+        properties = content["multipart/form-data"]["schema"]["properties"]
         for key, property in properties.items():
             if key in realm_example_values:
                 property["example"] = realm_example_values[key]

zerver/openapi/markdown_extension.py

@@ -336,10 +336,10 @@ def generate_curl_example(
         )
         lines.append(example_value)
 
-    if "requestBody" in operation_entry:
-        properties = operation_entry["requestBody"]["content"]["multipart/form-data"]["schema"][
-            "properties"
-        ]
+    if "requestBody" in operation_entry and "multipart/form-data" in (
+        content := operation_entry["requestBody"]["content"]
+    ):
+        properties = content["multipart/form-data"]["schema"]["properties"]
         for key, property in properties.items():
             lines.append("    -F " + shlex.quote("{}=@{}".format(key, property["example"])))
 

zerver/openapi/openapi.py

@@ -323,7 +323,7 @@ NO_EXAMPLE = object()
 
 
 class Parameter(BaseModel):
-    kind: Literal["query", "path"]
+    kind: Literal["query", "path", "formData"]
     name: str
     description: str
     json_encoded: bool
@@ -373,6 +373,31 @@ def get_openapi_parameters(
             )
         )
 
+    if "requestBody" in operation and "application/x-www-form-urlencoded" in (
+        content := operation["requestBody"]["content"]
+    ):
+        media_type = content["application/x-www-form-urlencoded"]
+        required = media_type["schema"].get("required", [])
+        for key, schema in media_type["schema"]["properties"].items():
+            json_encoded = (
+                "encoding" in media_type
+                and key in (encodings := media_type["encoding"])
+                and encodings[key].get("contentType") == "application/json"
+            ) or schema.get("type") == "object"
+
+            parameters.append(
+                Parameter(
+                    kind="formData",
+                    name=key,
+                    description=schema["description"],
+                    json_encoded=json_encoded,
+                    value_schema=schema,
+                    example=schema.get("example"),
+                    required=key in required,
+                    deprecated=schema.get("deprecated", False),
+                )
+            )
+
     return parameters