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author | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
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committer | S. Solomon Darnell | 2025-03-28 21:52:21 -0500 |
commit | 4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch) | |
tree | ee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/fastapi/datastructures.py | |
parent | cc961e04ba734dd72309fb548a2f97d67d578813 (diff) | |
download | gn-ai-4a52a71956a8d46fcb7294ac71734504bb09bcc2.tar.gz |
Diffstat (limited to '.venv/lib/python3.12/site-packages/fastapi/datastructures.py')
-rw-r--r-- | .venv/lib/python3.12/site-packages/fastapi/datastructures.py | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/.venv/lib/python3.12/site-packages/fastapi/datastructures.py b/.venv/lib/python3.12/site-packages/fastapi/datastructures.py new file mode 100644 index 00000000..cf8406b0 --- /dev/null +++ b/.venv/lib/python3.12/site-packages/fastapi/datastructures.py @@ -0,0 +1,204 @@ +from typing import ( + Any, + BinaryIO, + Callable, + Dict, + Iterable, + Optional, + Type, + TypeVar, + cast, +) + +from fastapi._compat import ( + PYDANTIC_V2, + CoreSchema, + GetJsonSchemaHandler, + JsonSchemaValue, + with_info_plain_validator_function, +) +from starlette.datastructures import URL as URL # noqa: F401 +from starlette.datastructures import Address as Address # noqa: F401 +from starlette.datastructures import FormData as FormData # noqa: F401 +from starlette.datastructures import Headers as Headers # noqa: F401 +from starlette.datastructures import QueryParams as QueryParams # noqa: F401 +from starlette.datastructures import State as State # noqa: F401 +from starlette.datastructures import UploadFile as StarletteUploadFile +from typing_extensions import Annotated, Doc + + +class UploadFile(StarletteUploadFile): + """ + A file uploaded in a request. + + Define it as a *path operation function* (or dependency) parameter. + + If you are using a regular `def` function, you can use the `upload_file.file` + attribute to access the raw standard Python file (blocking, not async), useful and + needed for non-async code. + + Read more about it in the + [FastAPI docs for Request Files](https://fastapi.tiangolo.com/tutorial/request-files/). + + ## Example + + ```python + from typing import Annotated + + from fastapi import FastAPI, File, UploadFile + + app = FastAPI() + + + @app.post("/files/") + async def create_file(file: Annotated[bytes, File()]): + return {"file_size": len(file)} + + + @app.post("/uploadfile/") + async def create_upload_file(file: UploadFile): + return {"filename": file.filename} + ``` + """ + + file: Annotated[ + BinaryIO, + Doc("The standard Python file object (non-async)."), + ] + filename: Annotated[Optional[str], Doc("The original file name.")] + size: Annotated[Optional[int], Doc("The size of the file in bytes.")] + headers: Annotated[Headers, Doc("The headers of the request.")] + content_type: Annotated[ + Optional[str], Doc("The content type of the request, from the headers.") + ] + + async def write( + self, + data: Annotated[ + bytes, + Doc( + """ + The bytes to write to the file. + """ + ), + ], + ) -> None: + """ + Write some bytes to the file. + + You normally wouldn't use this from a file you read in a request. + + To be awaitable, compatible with async, this is run in threadpool. + """ + return await super().write(data) + + async def read( + self, + size: Annotated[ + int, + Doc( + """ + The number of bytes to read from the file. + """ + ), + ] = -1, + ) -> bytes: + """ + Read some bytes from the file. + + To be awaitable, compatible with async, this is run in threadpool. + """ + return await super().read(size) + + async def seek( + self, + offset: Annotated[ + int, + Doc( + """ + The position in bytes to seek to in the file. + """ + ), + ], + ) -> None: + """ + Move to a position in the file. + + Any next read or write will be done from that position. + + To be awaitable, compatible with async, this is run in threadpool. + """ + return await super().seek(offset) + + async def close(self) -> None: + """ + Close the file. + + To be awaitable, compatible with async, this is run in threadpool. + """ + return await super().close() + + @classmethod + def __get_validators__(cls: Type["UploadFile"]) -> Iterable[Callable[..., Any]]: + yield cls.validate + + @classmethod + def validate(cls: Type["UploadFile"], v: Any) -> Any: + if not isinstance(v, StarletteUploadFile): + raise ValueError(f"Expected UploadFile, received: {type(v)}") + return v + + @classmethod + def _validate(cls, __input_value: Any, _: Any) -> "UploadFile": + if not isinstance(__input_value, StarletteUploadFile): + raise ValueError(f"Expected UploadFile, received: {type(__input_value)}") + return cast(UploadFile, __input_value) + + if not PYDANTIC_V2: + + @classmethod + def __modify_schema__(cls, field_schema: Dict[str, Any]) -> None: + field_schema.update({"type": "string", "format": "binary"}) + + @classmethod + def __get_pydantic_json_schema__( + cls, core_schema: CoreSchema, handler: GetJsonSchemaHandler + ) -> JsonSchemaValue: + return {"type": "string", "format": "binary"} + + @classmethod + def __get_pydantic_core_schema__( + cls, source: Type[Any], handler: Callable[[Any], CoreSchema] + ) -> CoreSchema: + return with_info_plain_validator_function(cls._validate) + + +class DefaultPlaceholder: + """ + You shouldn't use this class directly. + + It's used internally to recognize when a default value has been overwritten, even + if the overridden default value was truthy. + """ + + def __init__(self, value: Any): + self.value = value + + def __bool__(self) -> bool: + return bool(self.value) + + def __eq__(self, o: object) -> bool: + return isinstance(o, DefaultPlaceholder) and o.value == self.value + + +DefaultType = TypeVar("DefaultType") + + +def Default(value: DefaultType) -> DefaultType: + """ + You shouldn't use this function directly. + + It's used internally to recognize when a default value has been overwritten, even + if the overridden default value was truthy. + """ + return DefaultPlaceholder(value) # type: ignore |