增加环绕侦察场景适配

backend_service/venv/lib/python3.13/site-packages/fastapi/dependencies/utils.py

@@ -1,19 +1,16 @@
+import dataclasses
 import inspect
+import sys
+from collections.abc import Coroutine, Mapping, Sequence
 from contextlib import AsyncExitStack, contextmanager
 from copy import copy, deepcopy
 from dataclasses import dataclass
 from typing import (
+    Annotated,
     Any,
     Callable,
-    Coroutine,
-    Dict,
     ForwardRef,
-    List,
-    Mapping,
     Optional,
-    Sequence,
-    Tuple,
-    Type,
     Union,
     cast,
 )
@@ -21,17 +18,14 @@ from typing import (
 import anyio
 from fastapi import params
 from fastapi._compat import (
-    PYDANTIC_V2,
     ModelField,
     RequiredParam,
     Undefined,
-    _is_error_wrapper,
-    _is_model_class,
+    _regenerate_error_with_loc,
     copy_field_info,
     create_body_model,
     evaluate_forwardref,
     field_annotation_is_scalar,
-    get_annotation_from_field_info,
     get_cached_model_fields,
     get_missing_field_error,
     is_bytes_field,
@@ -42,23 +36,19 @@ from fastapi._compat import (
     is_uploadfile_or_nonable_uploadfile_annotation,
     is_uploadfile_sequence_annotation,
     lenient_issubclass,
-    may_v1,
     sequence_types,
     serialize_sequence_value,
     value_is_sequence,
 )
-from fastapi._compat.shared import annotation_is_pydantic_v1
 from fastapi.background import BackgroundTasks
 from fastapi.concurrency import (
     asynccontextmanager,
     contextmanager_in_threadpool,
 )
-from fastapi.dependencies.models import Dependant, SecurityRequirement
+from fastapi.dependencies.models import Dependant
 from fastapi.exceptions import DependencyScopeError
 from fastapi.logger import logger
-from fastapi.security.base import SecurityBase
-from fastapi.security.oauth2 import OAuth2, SecurityScopes
-from fastapi.security.open_id_connect_url import OpenIdConnect
+from fastapi.security.oauth2 import SecurityScopes
 from fastapi.types import DependencyCacheKey
 from fastapi.utils import create_model_field, get_path_param_names
 from pydantic import BaseModel
@@ -75,9 +65,7 @@ from starlette.datastructures import (
 from starlette.requests import HTTPConnection, Request
 from starlette.responses import Response
 from starlette.websockets import WebSocket
-from typing_extensions import Annotated, Literal, get_args, get_origin
-
-from .. import temp_pydantic_v1_params
+from typing_extensions import Literal, get_args, get_origin
 
 multipart_not_installed_error = (
     'Form data requires "python-multipart" to be installed. \n'
@@ -125,14 +113,14 @@ def get_parameterless_sub_dependant(*, depends: params.Depends, path: str) -> De
     assert callable(depends.dependency), (
         "A parameter-less dependency must have a callable dependency"
     )
-    use_security_scopes: List[str] = []
+    own_oauth_scopes: list[str] = []
     if isinstance(depends, params.Security) and depends.scopes:
-        use_security_scopes.extend(depends.scopes)
+        own_oauth_scopes.extend(depends.scopes)
     return get_dependant(
         path=path,
         call=depends.dependency,
         scope=depends.scope,
-        security_scopes=use_security_scopes,
+        own_oauth_scopes=own_oauth_scopes,
     )
 
 
@@ -140,11 +128,15 @@ def get_flat_dependant(
     dependant: Dependant,
     *,
     skip_repeats: bool = False,
-    visited: Optional[List[DependencyCacheKey]] = None,
+    visited: Optional[list[DependencyCacheKey]] = None,
+    parent_oauth_scopes: Optional[list[str]] = None,
 ) -> Dependant:
     if visited is None:
         visited = []
     visited.append(dependant.cache_key)
+    use_parent_oauth_scopes = (parent_oauth_scopes or []) + (
+        dependant.oauth_scopes or []
+    )
 
     flat_dependant = Dependant(
         path_params=dependant.path_params.copy(),
@@ -152,36 +144,51 @@ def get_flat_dependant(
         header_params=dependant.header_params.copy(),
         cookie_params=dependant.cookie_params.copy(),
         body_params=dependant.body_params.copy(),
-        security_requirements=dependant.security_requirements.copy(),
+        name=dependant.name,
+        call=dependant.call,
+        request_param_name=dependant.request_param_name,
+        websocket_param_name=dependant.websocket_param_name,
+        http_connection_param_name=dependant.http_connection_param_name,
+        response_param_name=dependant.response_param_name,
+        background_tasks_param_name=dependant.background_tasks_param_name,
+        security_scopes_param_name=dependant.security_scopes_param_name,
+        own_oauth_scopes=dependant.own_oauth_scopes,
+        parent_oauth_scopes=use_parent_oauth_scopes,
         use_cache=dependant.use_cache,
         path=dependant.path,
+        scope=dependant.scope,
     )
     for sub_dependant in dependant.dependencies:
         if skip_repeats and sub_dependant.cache_key in visited:
             continue
         flat_sub = get_flat_dependant(
-            sub_dependant, skip_repeats=skip_repeats, visited=visited
+            sub_dependant,
+            skip_repeats=skip_repeats,
+            visited=visited,
+            parent_oauth_scopes=flat_dependant.oauth_scopes,
         )
+        flat_dependant.dependencies.append(flat_sub)
         flat_dependant.path_params.extend(flat_sub.path_params)
         flat_dependant.query_params.extend(flat_sub.query_params)
         flat_dependant.header_params.extend(flat_sub.header_params)
         flat_dependant.cookie_params.extend(flat_sub.cookie_params)
         flat_dependant.body_params.extend(flat_sub.body_params)
-        flat_dependant.security_requirements.extend(flat_sub.security_requirements)
+        flat_dependant.dependencies.extend(flat_sub.dependencies)
+
     return flat_dependant
 
 
-def _get_flat_fields_from_params(fields: List[ModelField]) -> List[ModelField]:
+def _get_flat_fields_from_params(fields: list[ModelField]) -> list[ModelField]:
     if not fields:
         return fields
     first_field = fields[0]
-    if len(fields) == 1 and _is_model_class(first_field.type_):
+    if len(fields) == 1 and lenient_issubclass(first_field.type_, BaseModel):
         fields_to_extract = get_cached_model_fields(first_field.type_)
         return fields_to_extract
     return fields
 
 
-def get_flat_params(dependant: Dependant) -> List[ModelField]:
+def get_flat_params(dependant: Dependant) -> list[ModelField]:
     flat_dependant = get_flat_dependant(dependant, skip_repeats=True)
     path_params = _get_flat_fields_from_params(flat_dependant.path_params)
     query_params = _get_flat_fields_from_params(flat_dependant.query_params)
@@ -190,9 +197,23 @@ def get_flat_params(dependant: Dependant) -> List[ModelField]:
     return path_params + query_params + header_params + cookie_params
 
 
+def _get_signature(call: Callable[..., Any]) -> inspect.Signature:
+    if sys.version_info >= (3, 10):
+        try:
+            signature = inspect.signature(call, eval_str=True)
+        except NameError:
+            # Handle type annotations with if TYPE_CHECKING, not used by FastAPI
+            # e.g. dependency return types
+            signature = inspect.signature(call)
+    else:
+        signature = inspect.signature(call)
+    return signature
+
+
 def get_typed_signature(call: Callable[..., Any]) -> inspect.Signature:
-    signature = inspect.signature(call)
-    globalns = getattr(call, "__globals__", {})
+    signature = _get_signature(call)
+    unwrapped = inspect.unwrap(call)
+    globalns = getattr(unwrapped, "__globals__", {})
     typed_params = [
         inspect.Parameter(
             name=param.name,
@@ -206,7 +227,7 @@ def get_typed_signature(call: Callable[..., Any]) -> inspect.Signature:
     return typed_signature
 
 
-def get_typed_annotation(annotation: Any, globalns: Dict[str, Any]) -> Any:
+def get_typed_annotation(annotation: Any, globalns: dict[str, Any]) -> Any:
     if isinstance(annotation, str):
         annotation = ForwardRef(annotation)
         annotation = evaluate_forwardref(annotation, globalns, globalns)
@@ -216,13 +237,14 @@ def get_typed_annotation(annotation: Any, globalns: Dict[str, Any]) -> Any:
 
 
 def get_typed_return_annotation(call: Callable[..., Any]) -> Any:
-    signature = inspect.signature(call)
+    signature = _get_signature(call)
+    unwrapped = inspect.unwrap(call)
     annotation = signature.return_annotation
 
     if annotation is inspect.Signature.empty:
         return None
 
-    globalns = getattr(call, "__globals__", {})
+    globalns = getattr(unwrapped, "__globals__", {})
     return get_typed_annotation(annotation, globalns)
 
 
@@ -231,7 +253,8 @@ def get_dependant(
     path: str,
     call: Callable[..., Any],
     name: Optional[str] = None,
-    security_scopes: Optional[List[str]] = None,
+    own_oauth_scopes: Optional[list[str]] = None,
+    parent_oauth_scopes: Optional[list[str]] = None,
     use_cache: bool = True,
     scope: Union[Literal["function", "request"], None] = None,
 ) -> Dependant:
@@ -239,21 +262,15 @@ def get_dependant(
         call=call,
         name=name,
         path=path,
-        security_scopes=security_scopes,
         use_cache=use_cache,
         scope=scope,
+        own_oauth_scopes=own_oauth_scopes,
+        parent_oauth_scopes=parent_oauth_scopes,
     )
+    current_scopes = (parent_oauth_scopes or []) + (own_oauth_scopes or [])
     path_param_names = get_path_param_names(path)
     endpoint_signature = get_typed_signature(call)
     signature_params = endpoint_signature.parameters
-    if isinstance(call, SecurityBase):
-        use_scopes: List[str] = []
-        if isinstance(call, (OAuth2, OpenIdConnect)):
-            use_scopes = security_scopes or use_scopes
-        security_requirement = SecurityRequirement(
-            security_scheme=call, scopes=use_scopes
-        )
-        dependant.security_requirements.append(security_requirement)
     for param_name, param in signature_params.items():
         is_path_param = param_name in path_param_names
         param_details = analyze_param(
@@ -274,15 +291,16 @@ def get_dependant(
                     f'The dependency "{dependant.call.__name__}" has a scope of '
                     '"request", it cannot depend on dependencies with scope "function".'
                 )
-            use_security_scopes = security_scopes or []
+            sub_own_oauth_scopes: list[str] = []
             if isinstance(param_details.depends, params.Security):
                 if param_details.depends.scopes:
-                    use_security_scopes.extend(param_details.depends.scopes)
+                    sub_own_oauth_scopes = list(param_details.depends.scopes)
             sub_dependant = get_dependant(
                 path=path,
                 call=param_details.depends.dependency,
                 name=param_name,
-                security_scopes=use_security_scopes,
+                own_oauth_scopes=sub_own_oauth_scopes,
+                parent_oauth_scopes=current_scopes,
                 use_cache=param_details.depends.use_cache,
                 scope=param_details.depends.scope,
             )
@@ -298,9 +316,7 @@ def get_dependant(
             )
             continue
         assert param_details.field is not None
-        if isinstance(
-            param_details.field.field_info, (params.Body, temp_pydantic_v1_params.Body)
-        ):
+        if isinstance(param_details.field.field_info, params.Body):
             dependant.body_params.append(param_details.field)
         else:
             add_param_to_fields(field=param_details.field, dependant=dependant)
@@ -359,7 +375,7 @@ def analyze_param(
         fastapi_annotations = [
             arg
             for arg in annotated_args[1:]
-            if isinstance(arg, (FieldInfo, may_v1.FieldInfo, params.Depends))
+            if isinstance(arg, (FieldInfo, params.Depends))
         ]
         fastapi_specific_annotations = [
             arg
@@ -368,29 +384,27 @@ def analyze_param(
                 arg,
                 (
                     params.Param,
-                    temp_pydantic_v1_params.Param,
                     params.Body,
-                    temp_pydantic_v1_params.Body,
                     params.Depends,
                 ),
             )
         ]
         if fastapi_specific_annotations:
-            fastapi_annotation: Union[
-                FieldInfo, may_v1.FieldInfo, params.Depends, None
-            ] = fastapi_specific_annotations[-1]
+            fastapi_annotation: Union[FieldInfo, params.Depends, None] = (
+                fastapi_specific_annotations[-1]
+            )
         else:
             fastapi_annotation = None
         # Set default for Annotated FieldInfo
-        if isinstance(fastapi_annotation, (FieldInfo, may_v1.FieldInfo)):
+        if isinstance(fastapi_annotation, FieldInfo):
             # Copy `field_info` because we mutate `field_info.default` below.
             field_info = copy_field_info(
-                field_info=fastapi_annotation, annotation=use_annotation
+                field_info=fastapi_annotation,  # type: ignore[arg-type]
+                annotation=use_annotation,
             )
-            assert field_info.default in {
-                Undefined,
-                may_v1.Undefined,
-            } or field_info.default in {RequiredParam, may_v1.RequiredParam}, (
+            assert (
+                field_info.default == Undefined or field_info.default == RequiredParam
+            ), (
                 f"`{field_info.__class__.__name__}` default value cannot be set in"
                 f" `Annotated` for {param_name!r}. Set the default value with `=` instead."
             )
@@ -414,21 +428,20 @@ def analyze_param(
         )
         depends = value
     # Get FieldInfo from default value
-    elif isinstance(value, (FieldInfo, may_v1.FieldInfo)):
+    elif isinstance(value, FieldInfo):
         assert field_info is None, (
             "Cannot specify FastAPI annotations in `Annotated` and default value"
             f" together for {param_name!r}"
         )
-        field_info = value
-        if PYDANTIC_V2:
-            if isinstance(field_info, FieldInfo):
-                field_info.annotation = type_annotation
+        field_info = value  # type: ignore[assignment]
+        if isinstance(field_info, FieldInfo):
+            field_info.annotation = type_annotation
 
     # Get Depends from type annotation
     if depends is not None and depends.dependency is None:
         # Copy `depends` before mutating it
         depends = copy(depends)
-        depends.dependency = type_annotation
+        depends = dataclasses.replace(depends, dependency=type_annotation)
 
     # Handle non-param type annotations like Request
     if lenient_issubclass(
@@ -459,14 +472,7 @@ def analyze_param(
         ) or is_uploadfile_sequence_annotation(type_annotation):
             field_info = params.File(annotation=use_annotation, default=default_value)
         elif not field_annotation_is_scalar(annotation=type_annotation):
-            if annotation_is_pydantic_v1(use_annotation):
-                field_info = temp_pydantic_v1_params.Body(
-                    annotation=use_annotation, default=default_value
-                )
-            else:
-                field_info = params.Body(
-                    annotation=use_annotation, default=default_value
-                )
+            field_info = params.Body(annotation=use_annotation, default=default_value)
         else:
             field_info = params.Query(annotation=use_annotation, default=default_value)
 
@@ -475,23 +481,17 @@ def analyze_param(
     if field_info is not None:
         # Handle field_info.in_
         if is_path_param:
-            assert isinstance(
-                field_info, (params.Path, temp_pydantic_v1_params.Path)
-            ), (
+            assert isinstance(field_info, params.Path), (
                 f"Cannot use `{field_info.__class__.__name__}` for path param"
                 f" {param_name!r}"
             )
         elif (
-            isinstance(field_info, (params.Param, temp_pydantic_v1_params.Param))
+            isinstance(field_info, params.Param)
             and getattr(field_info, "in_", None) is None
         ):
             field_info.in_ = params.ParamTypes.query
-        use_annotation_from_field_info = get_annotation_from_field_info(
-            use_annotation,
-            field_info,
-            param_name,
-        )
-        if isinstance(field_info, (params.Form, temp_pydantic_v1_params.Form)):
+        use_annotation_from_field_info = use_annotation
+        if isinstance(field_info, params.Form):
             ensure_multipart_is_installed()
         if not field_info.alias and getattr(field_info, "convert_underscores", None):
             alias = param_name.replace("_", "-")
@@ -503,20 +503,19 @@ def analyze_param(
             type_=use_annotation_from_field_info,
             default=field_info.default,
             alias=alias,
-            required=field_info.default
-            in (RequiredParam, may_v1.RequiredParam, Undefined),
+            required=field_info.default in (RequiredParam, Undefined),
             field_info=field_info,
         )
         if is_path_param:
             assert is_scalar_field(field=field), (
                 "Path params must be of one of the supported types"
             )
-        elif isinstance(field_info, (params.Query, temp_pydantic_v1_params.Query)):
+        elif isinstance(field_info, params.Query):
             assert (
                 is_scalar_field(field)
                 or is_scalar_sequence_field(field)
                 or (
-                    _is_model_class(field.type_)
+                    lenient_issubclass(field.type_, BaseModel)
                     # For Pydantic v1
                     and getattr(field, "shape", 1) == 1
                 )
@@ -542,34 +541,34 @@ def add_param_to_fields(*, field: ModelField, dependant: Dependant) -> None:
 
 
 async def _solve_generator(
-    *, dependant: Dependant, stack: AsyncExitStack, sub_values: Dict[str, Any]
+    *, dependant: Dependant, stack: AsyncExitStack, sub_values: dict[str, Any]
 ) -> Any:
     assert dependant.call
-    if dependant.is_gen_callable:
-        cm = contextmanager_in_threadpool(contextmanager(dependant.call)(**sub_values))
-    elif dependant.is_async_gen_callable:
+    if dependant.is_async_gen_callable:
         cm = asynccontextmanager(dependant.call)(**sub_values)
+    elif dependant.is_gen_callable:
+        cm = contextmanager_in_threadpool(contextmanager(dependant.call)(**sub_values))
     return await stack.enter_async_context(cm)
 
 
 @dataclass
 class SolvedDependency:
-    values: Dict[str, Any]
-    errors: List[Any]
+    values: dict[str, Any]
+    errors: list[Any]
     background_tasks: Optional[StarletteBackgroundTasks]
     response: Response
-    dependency_cache: Dict[DependencyCacheKey, Any]
+    dependency_cache: dict[DependencyCacheKey, Any]
 
 
 async def solve_dependencies(
     *,
     request: Union[Request, WebSocket],
     dependant: Dependant,
-    body: Optional[Union[Dict[str, Any], FormData]] = None,
+    body: Optional[Union[dict[str, Any], FormData]] = None,
     background_tasks: Optional[StarletteBackgroundTasks] = None,
     response: Optional[Response] = None,
     dependency_overrides_provider: Optional[Any] = None,
-    dependency_cache: Optional[Dict[DependencyCacheKey, Any]] = None,
+    dependency_cache: Optional[dict[DependencyCacheKey, Any]] = None,
     # TODO: remove this parameter later, no longer used, not removing it yet as some
     # people might be monkey patching this function (although that's not supported)
     async_exit_stack: AsyncExitStack,
@@ -583,8 +582,8 @@ async def solve_dependencies(
     assert isinstance(function_astack, AsyncExitStack), (
         "fastapi_function_astack not found in request scope"
     )
-    values: Dict[str, Any] = {}
-    errors: List[Any] = []
+    values: dict[str, Any] = {}
+    errors: list[Any] = []
     if response is None:
         response = Response()
         del response.headers["content-length"]
@@ -608,7 +607,7 @@ async def solve_dependencies(
                 path=use_path,
                 call=call,
                 name=sub_dependant.name,
-                security_scopes=sub_dependant.security_scopes,
+                parent_oauth_scopes=sub_dependant.oauth_scopes,
                 scope=sub_dependant.scope,
             )
 
@@ -690,7 +689,7 @@ async def solve_dependencies(
         values[dependant.response_param_name] = response
     if dependant.security_scopes_param_name:
         values[dependant.security_scopes_param_name] = SecurityScopes(
-            scopes=dependant.security_scopes
+            scopes=dependant.oauth_scopes
         )
     return SolvedDependency(
         values=values,
@@ -702,18 +701,16 @@ async def solve_dependencies(
 
 
 def _validate_value_with_model_field(
-    *, field: ModelField, value: Any, values: Dict[str, Any], loc: Tuple[str, ...]
-) -> Tuple[Any, List[Any]]:
+    *, field: ModelField, value: Any, values: dict[str, Any], loc: tuple[str, ...]
+) -> tuple[Any, list[Any]]:
     if value is None:
         if field.required:
             return None, [get_missing_field_error(loc=loc)]
         else:
             return deepcopy(field.default), []
     v_, errors_ = field.validate(value, values, loc=loc)
-    if _is_error_wrapper(errors_):  # type: ignore[arg-type]
-        return None, [errors_]
-    elif isinstance(errors_, list):
-        new_errors = may_v1._regenerate_error_with_loc(errors=errors_, loc_prefix=())
+    if isinstance(errors_, list):
+        new_errors = _regenerate_error_with_loc(errors=errors_, loc_prefix=())
         return None, new_errors
     else:
         return v_, []
@@ -722,7 +719,7 @@ def _validate_value_with_model_field(
 def _get_multidict_value(
     field: ModelField, values: Mapping[str, Any], alias: Union[str, None] = None
 ) -> Any:
-    alias = alias or field.alias
+    alias = alias or get_validation_alias(field)
     if is_sequence_field(field) and isinstance(values, (ImmutableMultiDict, Headers)):
         value = values.getlist(alias)
     else:
@@ -730,7 +727,7 @@ def _get_multidict_value(
     if (
         value is None
         or (
-            isinstance(field.field_info, (params.Form, temp_pydantic_v1_params.Form))
+            isinstance(field.field_info, params.Form)
             and isinstance(value, str)  # For type checks
             and value == ""
         )
@@ -746,9 +743,9 @@ def _get_multidict_value(
 def request_params_to_args(
     fields: Sequence[ModelField],
     received_params: Union[Mapping[str, Any], QueryParams, Headers],
-) -> Tuple[Dict[str, Any], List[Any]]:
-    values: Dict[str, Any] = {}
-    errors: List[Dict[str, Any]] = []
+) -> tuple[dict[str, Any], list[Any]]:
+    values: dict[str, Any] = {}
+    errors: list[dict[str, Any]] = []
 
     if not fields:
         return values, errors
@@ -766,7 +763,7 @@ def request_params_to_args(
             first_field.field_info, "convert_underscores", True
         )
 
-    params_to_process: Dict[str, Any] = {}
+    params_to_process: dict[str, Any] = {}
 
     processed_keys = set()
 
@@ -779,27 +776,31 @@ def request_params_to_args(
                 field.field_info, "convert_underscores", default_convert_underscores
             )
             if convert_underscores:
-                alias = (
-                    field.alias
-                    if field.alias != field.name
-                    else field.name.replace("_", "-")
-                )
+                alias = get_validation_alias(field)
+                if alias == field.name:
+                    alias = alias.replace("_", "-")
         value = _get_multidict_value(field, received_params, alias=alias)
         if value is not None:
-            params_to_process[field.name] = value
-        processed_keys.add(alias or field.alias)
-        processed_keys.add(field.name)
+            params_to_process[get_validation_alias(field)] = value
+        processed_keys.add(alias or get_validation_alias(field))
 
-    for key, value in received_params.items():
+    for key in received_params.keys():
         if key not in processed_keys:
-            params_to_process[key] = value
+            if hasattr(received_params, "getlist"):
+                value = received_params.getlist(key)
+                if isinstance(value, list) and (len(value) == 1):
+                    params_to_process[key] = value[0]
+                else:
+                    params_to_process[key] = value
+            else:
+                params_to_process[key] = received_params.get(key)
 
     if single_not_embedded_field:
         field_info = first_field.field_info
-        assert isinstance(field_info, (params.Param, temp_pydantic_v1_params.Param)), (
+        assert isinstance(field_info, params.Param), (
             "Params must be subclasses of Param"
         )
-        loc: Tuple[str, ...] = (field_info.in_.value,)
+        loc: tuple[str, ...] = (field_info.in_.value,)
         v_, errors_ = _validate_value_with_model_field(
             field=first_field, value=params_to_process, values=values, loc=loc
         )
@@ -808,10 +809,10 @@ def request_params_to_args(
     for field in fields:
         value = _get_multidict_value(field, received_params)
         field_info = field.field_info
-        assert isinstance(field_info, (params.Param, temp_pydantic_v1_params.Param)), (
+        assert isinstance(field_info, params.Param), (
             "Params must be subclasses of Param"
         )
-        loc = (field_info.in_.value, field.alias)
+        loc = (field_info.in_.value, get_validation_alias(field))
         v_, errors_ = _validate_value_with_model_field(
             field=field, value=value, values=values, loc=loc
         )
@@ -835,13 +836,13 @@ def is_union_of_base_models(field_type: Any) -> bool:
     union_args = get_args(field_type)
 
     for arg in union_args:
-        if not _is_model_class(arg):
+        if not lenient_issubclass(arg, BaseModel):
             return False
 
     return True
 
 
-def _should_embed_body_fields(fields: List[ModelField]) -> bool:
+def _should_embed_body_fields(fields: list[ModelField]) -> bool:
     if not fields:
         return False
     # More than one dependency could have the same field, it would show up as multiple
@@ -857,8 +858,8 @@ def _should_embed_body_fields(fields: List[ModelField]) -> bool:
     # If it's a Form (or File) field, it has to be a BaseModel (or a union of BaseModels) to be top level
     # otherwise it has to be embedded, so that the key value pair can be extracted
     if (
-        isinstance(first_field.field_info, (params.Form, temp_pydantic_v1_params.Form))
-        and not _is_model_class(first_field.type_)
+        isinstance(first_field.field_info, params.Form)
+        and not lenient_issubclass(first_field.type_, BaseModel)
         and not is_union_of_base_models(first_field.type_)
     ):
         return True
@@ -866,28 +867,28 @@ def _should_embed_body_fields(fields: List[ModelField]) -> bool:
 
 
 async def _extract_form_body(
-    body_fields: List[ModelField],
+    body_fields: list[ModelField],
     received_body: FormData,
-) -> Dict[str, Any]:
+) -> dict[str, Any]:
     values = {}
 
     for field in body_fields:
         value = _get_multidict_value(field, received_body)
         field_info = field.field_info
         if (
-            isinstance(field_info, (params.File, temp_pydantic_v1_params.File))
+            isinstance(field_info, params.File)
             and is_bytes_field(field)
             and isinstance(value, UploadFile)
         ):
             value = await value.read()
         elif (
             is_bytes_sequence_field(field)
-            and isinstance(field_info, (params.File, temp_pydantic_v1_params.File))
+            and isinstance(field_info, params.File)
             and value_is_sequence(value)
         ):
             # For types
-            assert isinstance(value, sequence_types)  # type: ignore[arg-type]
-            results: List[Union[bytes, str]] = []
+            assert isinstance(value, sequence_types)
+            results: list[Union[bytes, str]] = []
 
             async def process_fn(
                 fn: Callable[[], Coroutine[Any, Any, Any]],
@@ -900,30 +901,35 @@ async def _extract_form_body(
                     tg.start_soon(process_fn, sub_value.read)
             value = serialize_sequence_value(field=field, value=results)
         if value is not None:
-            values[field.alias] = value
-    for key, value in received_body.items():
-        if key not in values:
-            values[key] = value
+            values[get_validation_alias(field)] = value
+    field_aliases = {get_validation_alias(field) for field in body_fields}
+    for key in received_body.keys():
+        if key not in field_aliases:
+            param_values = received_body.getlist(key)
+            if len(param_values) == 1:
+                values[key] = param_values[0]
+            else:
+                values[key] = param_values
     return values
 
 
 async def request_body_to_args(
-    body_fields: List[ModelField],
-    received_body: Optional[Union[Dict[str, Any], FormData]],
+    body_fields: list[ModelField],
+    received_body: Optional[Union[dict[str, Any], FormData]],
     embed_body_fields: bool,
-) -> Tuple[Dict[str, Any], List[Dict[str, Any]]]:
-    values: Dict[str, Any] = {}
-    errors: List[Dict[str, Any]] = []
+) -> tuple[dict[str, Any], list[dict[str, Any]]]:
+    values: dict[str, Any] = {}
+    errors: list[dict[str, Any]] = []
     assert body_fields, "request_body_to_args() should be called with fields"
     single_not_embedded_field = len(body_fields) == 1 and not embed_body_fields
     first_field = body_fields[0]
     body_to_process = received_body
 
-    fields_to_extract: List[ModelField] = body_fields
+    fields_to_extract: list[ModelField] = body_fields
 
     if (
         single_not_embedded_field
-        and _is_model_class(first_field.type_)
+        and lenient_issubclass(first_field.type_, BaseModel)
         and isinstance(received_body, FormData)
     ):
         fields_to_extract = get_cached_model_fields(first_field.type_)
@@ -932,17 +938,17 @@ async def request_body_to_args(
         body_to_process = await _extract_form_body(fields_to_extract, received_body)
 
     if single_not_embedded_field:
-        loc: Tuple[str, ...] = ("body",)
+        loc: tuple[str, ...] = ("body",)
         v_, errors_ = _validate_value_with_model_field(
             field=first_field, value=body_to_process, values=values, loc=loc
         )
         return {first_field.name: v_}, errors_
     for field in body_fields:
-        loc = ("body", field.alias)
+        loc = ("body", get_validation_alias(field))
         value: Optional[Any] = None
         if body_to_process is not None:
             try:
-                value = body_to_process.get(field.alias)
+                value = body_to_process.get(get_validation_alias(field))
             # If the received body is a list, not a dict
             except AttributeError:
                 errors.append(get_missing_field_error(loc))
@@ -980,36 +986,23 @@ def get_body_field(
         fields=flat_dependant.body_params, model_name=model_name
     )
     required = any(True for f in flat_dependant.body_params if f.required)
-    BodyFieldInfo_kwargs: Dict[str, Any] = {
+    BodyFieldInfo_kwargs: dict[str, Any] = {
         "annotation": BodyModel,
         "alias": "body",
     }
     if not required:
         BodyFieldInfo_kwargs["default"] = None
     if any(isinstance(f.field_info, params.File) for f in flat_dependant.body_params):
-        BodyFieldInfo: Type[params.Body] = params.File
-    elif any(
-        isinstance(f.field_info, temp_pydantic_v1_params.File)
-        for f in flat_dependant.body_params
-    ):
-        BodyFieldInfo: Type[temp_pydantic_v1_params.Body] = temp_pydantic_v1_params.File  # type: ignore[no-redef]
+        BodyFieldInfo: type[params.Body] = params.File
     elif any(isinstance(f.field_info, params.Form) for f in flat_dependant.body_params):
         BodyFieldInfo = params.Form
-    elif any(
-        isinstance(f.field_info, temp_pydantic_v1_params.Form)
-        for f in flat_dependant.body_params
-    ):
-        BodyFieldInfo = temp_pydantic_v1_params.Form  # type: ignore[assignment]
     else:
-        if annotation_is_pydantic_v1(BodyModel):
-            BodyFieldInfo = temp_pydantic_v1_params.Body  # type: ignore[assignment]
-        else:
-            BodyFieldInfo = params.Body
+        BodyFieldInfo = params.Body
 
         body_param_media_types = [
             f.field_info.media_type
             for f in flat_dependant.body_params
-            if isinstance(f.field_info, (params.Body, temp_pydantic_v1_params.Body))
+            if isinstance(f.field_info, params.Body)
         ]
         if len(set(body_param_media_types)) == 1:
             BodyFieldInfo_kwargs["media_type"] = body_param_media_types[0]
@@ -1021,3 +1014,8 @@ def get_body_field(
         field_info=BodyFieldInfo(**BodyFieldInfo_kwargs),
     )
     return final_field
+
+
+def get_validation_alias(field: ModelField) -> str:
+    va = getattr(field, "validation_alias", None)
+    return va or field.alias