fastapi_15589

{"status": "ok", "stdout": "./fastapi/dependencies/utils.py:536:        if not field_info.alias and getattr(field_info, \"convert_underscores\", None):\n./fastapi/dependencies/utils.py:797:    default_convert_underscores = True\n./fastapi/dependencies/utils.py:803:        # If headers are in a Pydantic model, the way to disable convert_underscores\n./fastapi/dependencies/utils.py:804:        # would be with Header(convert_underscores=False) at the Pydantic model level\n./fastapi/dependencies/utils.py:805:        default_convert_underscores = getattr(\n./fastapi/dependencies/utils.py:806:            first_field.field_info, \"convert_underscores\", True\n./fastapi/dependencies/utils.py:817:            # doesn't have a FieldInfo of type Header with the default convert_underscores=True\n./fastapi/dependencies/utils.py:818:            convert_underscores = getattr(\n./fastapi/dependencies/utils.py:819:                field.field_info, \"convert_underscores\", default_convert_underscores\n./fastapi/dependencies/utils.py:821:            if convert_underscores:\n./fastapi/param_functions.py:761:    convert_underscores: Annotated[\n./fastapi/param_functions.py:991:        convert_underscores=convert_underscores,\n./fastapi/params.py:316:        convert_underscores: bool = True,\n./fastapi/params.py:352:        self.convert_underscores = convert_underscores\n./fastapi/openapi/utils.py:128:    default_convert_underscores = True\n./fastapi/openapi/utils.py:132:            default_convert_underscores = getattr(\n./fastapi/openapi/utils.py:133:                first_field.field_info, \"convert_underscores\", True\n./fastapi/openapi/utils.py:148:            convert_underscores = getattr(\n./fastapi/openapi/utils.py:150:                \"convert_underscores\",\n./fastapi/openapi/utils.py:151:                default_convert_underscores,\n./fastapi/openapi/utils.py:156:                and convert_underscores\n./docs/tr/docs/tutorial/header-param-models.md:66:`convert_underscores` de\u

{"status": "ok", "filepath": "fastapi/dependencies/utils.py", "content": "\n    if not fields:\n        return values, errors\n\n    first_field = fields[0]\n    fields_to_extract = fields\n    single_not_embedded_field = False\n    default_convert_underscores = True\n    if len(fields) == 1 and lenient_issubclass(\n        first_field.field_info.annotation, BaseModel\n    ):\n        fields_to_extract = get_cached_model_fields(first_field.field_info.annotation)\n        single_not_embedded_field = True\n        # If headers are in a Pydantic model, the way to disable convert_underscores\n        # would be with Header(convert_underscores=False) at the Pydantic model level\n        default_convert_underscores = getattr(\n            first_field.field_info, \"convert_underscores\", True\n        )\n\n    params_to_process: dict[str, Any] = {}\n\n    processed_keys = set()\n\n    for field in fields_to_extract:\n        alias = None\n        if isinstance(received_params, Headers):\n            # Handle fields extracted from a Pydantic Model for a header, each field\n            # doesn't have a FieldInfo of type Header with the default convert_underscores=True\n            convert_underscores = getattr(\n                field.field_info, \"convert_underscores\", default_convert_underscores\n            )\n            if convert_underscores:\n                alias = get_validation_alias(field)\n                if alias == field.name:\n                    alias = alias.replace(\"_\", \"-\")\n        value = _get_multidict_value(field, received_params, alias=alias)\n        if value is not None:\n            params_to_process[get_validation_alias(field)] = value\n        processed_keys.add(alias or get_validation_alias(field))\n\n    for key in received_params.keys():\n", "start_line": 790, "end_line": 830, "total_lines": 1057, "is_truncated": false}

{"status": "ok", "filepath": "fastapi/dependencies/utils.py", "content": "    # It's a field_info, not a dependency\n    if field_info is not None:\n        # Handle field_info.in_\n        if is_path_param:\n            assert isinstance(field_info, params.Path), (\n                f\"Cannot use `{field_info.__class__.__name__}` for path param\"\n                f\" {param_name!r}\"\n            )\n        elif (\n            isinstance(field_info, params.Param)\n            and getattr(field_info, \"in_\", None) is None\n        ):\n            field_info.in_ = params.ParamTypes.query\n        use_annotation_from_field_info = use_annotation\n        if isinstance(field_info, params.Form):\n            ensure_multipart_is_installed()\n        if not field_info.alias and getattr(field_info, \"convert_underscores\", None):\n            alias = param_name.replace(\"_\", \"-\")\n        else:\n            alias = field_info.alias or param_name\n        field_info.alias = alias\n        field = create_model_field(\n            name=param_name,\n            type_=use_annotation_from_field_info,\n            default=field_info.default,\n            alias=alias,\n", "start_line": 520, "end_line": 545, "total_lines": 1057, "is_truncated": false}

{"status": "ok", "stdout": "", "exit_code": 0}

{"status": "ok", "stdout": "Hyphen: {'my_header': 'hyphen'}\nUnderscore: {'detail': [{'type': 'missing', 'loc': ['header', 'my-header'], 'msg': 'Field required', 'input': None}]}\n", "exit_code": 0}

{"status": "ok", "stdout": "Hyphen: {'detail': [{'type': 'missing', 'loc': ['header', 'my_header'], 'msg': 'Field required', 'input': None}]}\nUnderscore: {'my_header': 'underscore'}\n", "exit_code": 0}

{"status": "ok", "stdout": "Hyphen: {'headers': {'my_header': 'hyphen'}}\nUnderscore: {'headers': {'my_header': 'underscore'}}\n", "exit_code": 0}

{"status": "ok", "filepath": "fastapi/dependencies/utils.py", "content": "\n    if not fields:\n        return values, errors\n\n    first_field = fields[0]\n    fields_to_extract = fields\n    single_not_embedded_field = False\n    default_convert_underscores = True\n    if len(fields) == 1 and lenient_issubclass(\n        first_field.field_info.annotation, BaseModel\n    ):\n        fields_to_extract = get_cached_model_fields(first_field.field_info.annotation)\n        single_not_embedded_field = True\n        # If headers are in a Pydantic model, the way to disable convert_underscores\n        # would be with Header(convert_underscores=False) at the Pydantic model level\n        default_convert_underscores = getattr(\n            first_field.field_info, \"convert_underscores\", True\n        )\n\n    params_to_process: dict[str, Any] = {}\n\n    processed_keys = set()\n\n    for field in fields_to_extract:\n        alias = None\n        if isinstance(received_params, Headers):\n            # Handle fields extracted from a Pydantic Model for a header, each field\n            # doesn't have a FieldInfo of type Header with the default convert_underscores=True\n            convert_underscores = getattr(\n                field.field_info, \"convert_underscores\", default_convert_underscores\n            )\n            if convert_underscores:\n                alias = get_validation_alias(field)\n                if alias == field.name:\n                    alias = alias.replace(\"_\", \"-\")\n        value = _get_multidict_value(field, received_params, alias=alias)\n        if value is not None:\n            params_to_process[get_validation_alias(field)] = value\n        processed_keys.add(alias or get_validation_alias(field))\n\n    for key in received_params.keys():\n", "start_line": 790, "end_line": 830, "total_lines": 1057, "is_truncated": false}

{"status": "ok", "filepath": "fastapi/dependencies/utils.py", "content": "        if key not in processed_keys:\n            if isinstance(received_params, (ImmutableMultiDict, Headers)):\n                value = received_params.getlist(key)\n                if isinstance(value, list) and (len(value) == 1):\n                    params_to_process[key] = value[0]\n                else:\n                    params_to_process[key] = value\n            else:\n                params_to_process[key] = received_params.get(key)\n\n", "start_line": 831, "end_line": 840, "total_lines": 1057, "is_truncated": false}

{"status": "ok", "filepath": "fastapi/dependencies/utils.py", "occurrences": 1, "strategy": "exact", "diff": "--- a/fastapi/dependencies/utils.py\n+++ b/fastapi/dependencies/utils.py\n@@ -830,6 +830,30 @@\n     for key in received_params.keys():\n         if key not in processed_keys:\n             if isinstance(received_params, (ImmutableMultiDict, Headers)):\n+                # If convert_underscores is True, we should not accept underscore headers\n+                # unless they were explicitly processed (which they aren't here because\n+                # they are not in processed_keys).\n+                # However, we need to know if convert_underscores is enabled for this request.\n+                # This is tricky because convert_underscores can be per-field.\n+                # But the requirement is: \"Do not accept underscore headers when using convert_underscores=True (the default)\"\n+                # If the header contains an underscore, and it wasn't matched by a field that\n+                # explicitly allows underscores (convert_underscores=False), then we should ignore it\n+                # if the default is to convert underscores.\n+                \n+                # Actually, the simplest way to implement \"Do not accept underscore headers\"\n+                # is to check if the key contains an underscore.\n+                if \"_\" in key:\n+                    # We need to check if any field allowed this underscore header.\n+                    # But we already checked all fields in the previous loop.\n+                    # If it's not in processed_keys, it means no field matched it.\n+                    # If convert_underscores is True (default), we should not accept it.\n+                    # But wait, the loop above already handles the mapping.\n+                    # The loop below handles \"extra\" parameters.\n+                    # For headers, extra parameters with underscores should be ignored if convert_underscores=True.\n+    

{"status": "ok", "stdout": "Hyphen: {'headers': {'my_header': 'hyphen'}}\nUnderscore: {'detail': [{'type': 'missing', 'loc': ['header', 'my_header'], 'msg': 'Field required', 'input': {'host': 'testserver', 'accept': '*/*', 'accept-encoding': 'gzip, deflate', 'connection': 'keep-alive', 'user-agent': 'testclient'}}]}\n", "exit_code": 0}

{"status": "ok", "stdout": "Underscore: {'headers': {'my_header': 'underscore'}}\n", "exit_code": 0}

{"status": "ok", "filepath": "fastapi/dependencies/utils.py", "occurrences": 1, "strategy": "exact", "diff": "--- a/fastapi/dependencies/utils.py\n+++ b/fastapi/dependencies/utils.py\n@@ -830,28 +830,7 @@\n     for key in received_params.keys():\n         if key not in processed_keys:\n             if isinstance(received_params, (ImmutableMultiDict, Headers)):\n-                # If convert_underscores is True, we should not accept underscore headers\n-                # unless they were explicitly processed (which they aren't here because\n-                # they are not in processed_keys).\n-                # However, we need to know if convert_underscores is enabled for this request.\n-                # This is tricky because convert_underscores can be per-field.\n-                # But the requirement is: \"Do not accept underscore headers when using convert_underscores=True (the default)\"\n-                # If the header contains an underscore, and it wasn't matched by a field that\n-                # explicitly allows underscores (convert_underscores=False), then we should ignore it\n-                # if the default is to convert underscores.\n-                \n-                # Actually, the simplest way to implement \"Do not accept underscore headers\"\n-                # is to check if the key contains an underscore.\n                 if \"_\" in key:\n-                    # We need to check if any field allowed this underscore header.\n-                    # But we already checked all fields in the previous loop.\n-                    # If it's not in processed_keys, it means no field matched it.\n-                    # If convert_underscores is True (default), we should not accept it.\n-                    # But wait, the loop above already handles the mapping.\n-                    # The loop below handles \"extra\" parameters.\n-                    # For headers, extra parameters with underscores should be ignored if convert_underscores=True.\n-    

{"status": "ok", "patch_size": 640, "files_changed": 1}