|
| 1 | +from __future__ import annotations |
| 2 | + |
| 3 | +import io |
| 4 | +import os |
| 5 | +import pathlib |
| 6 | +from typing import overload |
| 7 | +from typing_extensions import TypeGuard |
| 8 | + |
| 9 | +import anyio |
| 10 | + |
| 11 | +from ._types import ( |
| 12 | + FileTypes, |
| 13 | + FileContent, |
| 14 | + RequestFiles, |
| 15 | + HttpxFileTypes, |
| 16 | + HttpxFileContent, |
| 17 | + HttpxRequestFiles, |
| 18 | +) |
| 19 | +from ._utils import is_tuple_t, is_mapping_t, is_sequence_t |
| 20 | + |
| 21 | + |
| 22 | +def is_file_content(obj: object) -> TypeGuard[FileContent]: |
| 23 | + return ( |
| 24 | + isinstance(obj, bytes) or isinstance(obj, tuple) or isinstance(obj, io.IOBase) or isinstance(obj, os.PathLike) |
| 25 | + ) |
| 26 | + |
| 27 | + |
| 28 | +def assert_is_file_content(obj: object, *, key: str | None = None) -> None: |
| 29 | + if not is_file_content(obj): |
| 30 | + prefix = f"Expected entry at `{key}`" if key is not None else f"Expected file input `{obj!r}`" |
| 31 | + raise RuntimeError( |
| 32 | + f"{prefix} to be bytes, an io.IOBase instance, PathLike or a tuple but received {type(obj)} instead." |
| 33 | + ) from None |
| 34 | + |
| 35 | + |
| 36 | +@overload |
| 37 | +def to_httpx_files(files: None) -> None: |
| 38 | + ... |
| 39 | + |
| 40 | + |
| 41 | +@overload |
| 42 | +def to_httpx_files(files: RequestFiles) -> HttpxRequestFiles: |
| 43 | + ... |
| 44 | + |
| 45 | + |
| 46 | +def to_httpx_files(files: RequestFiles | None) -> HttpxRequestFiles | None: |
| 47 | + if files is None: |
| 48 | + return None |
| 49 | + |
| 50 | + if is_mapping_t(files): |
| 51 | + files = {key: _transform_file(file) for key, file in files.items()} |
| 52 | + elif is_sequence_t(files): |
| 53 | + files = [(key, _transform_file(file)) for key, file in files] |
| 54 | + else: |
| 55 | + raise TypeError(f"Unexpected file type input {type(files)}, expected mapping or sequence") |
| 56 | + |
| 57 | + return files |
| 58 | + |
| 59 | + |
| 60 | +def _transform_file(file: FileTypes) -> HttpxFileTypes: |
| 61 | + if is_file_content(file): |
| 62 | + if isinstance(file, os.PathLike): |
| 63 | + path = pathlib.Path(file) |
| 64 | + return (path.name, path.read_bytes()) |
| 65 | + |
| 66 | + return file |
| 67 | + |
| 68 | + if is_tuple_t(file): |
| 69 | + return (file[0], _read_file_content(file[1]), *file[2:]) |
| 70 | + |
| 71 | + raise TypeError(f"Expected file types input to be a FileContent type or to be a tuple") |
| 72 | + |
| 73 | + |
| 74 | +def _read_file_content(file: FileContent) -> HttpxFileContent: |
| 75 | + if isinstance(file, os.PathLike): |
| 76 | + return pathlib.Path(file).read_bytes() |
| 77 | + return file |
| 78 | + |
| 79 | + |
| 80 | +@overload |
| 81 | +async def async_to_httpx_files(files: None) -> None: |
| 82 | + ... |
| 83 | + |
| 84 | + |
| 85 | +@overload |
| 86 | +async def async_to_httpx_files(files: RequestFiles) -> HttpxRequestFiles: |
| 87 | + ... |
| 88 | + |
| 89 | + |
| 90 | +async def async_to_httpx_files(files: RequestFiles | None) -> HttpxRequestFiles | None: |
| 91 | + if files is None: |
| 92 | + return None |
| 93 | + |
| 94 | + if is_mapping_t(files): |
| 95 | + files = {key: await _async_transform_file(file) for key, file in files.items()} |
| 96 | + elif is_sequence_t(files): |
| 97 | + files = [(key, await _async_transform_file(file)) for key, file in files] |
| 98 | + else: |
| 99 | + raise TypeError("Unexpected file type input {type(files)}, expected mapping or sequence") |
| 100 | + |
| 101 | + return files |
| 102 | + |
| 103 | + |
| 104 | +async def _async_transform_file(file: FileTypes) -> HttpxFileTypes: |
| 105 | + if is_file_content(file): |
| 106 | + if isinstance(file, os.PathLike): |
| 107 | + path = anyio.Path(file) |
| 108 | + return (path.name, await path.read_bytes()) |
| 109 | + |
| 110 | + return file |
| 111 | + |
| 112 | + if is_tuple_t(file): |
| 113 | + return (file[0], await _async_read_file_content(file[1]), *file[2:]) |
| 114 | + |
| 115 | + raise TypeError(f"Expected file types input to be a FileContent type or to be a tuple") |
| 116 | + |
| 117 | + |
| 118 | +async def _async_read_file_content(file: FileContent) -> HttpxFileContent: |
| 119 | + if isinstance(file, os.PathLike): |
| 120 | + return await anyio.Path(file).read_bytes() |
| 121 | + |
| 122 | + return file |
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