706 lines
22 KiB
Python
706 lines
22 KiB
Python
|
from __future__ import annotations
|
||
|
|
|
||
|
|
import typing
|
||
|
|
from shlex import shlex
|
||
|
|
from urllib.parse import SplitResult, parse_qsl, urlencode, urlsplit
|
||
|
|
|
||
|
|
from starlette.concurrency import run_in_threadpool
|
||
|
|
from starlette.types import Scope
|
||
|
|
|
||
|
|
|
||
|
|
class Address(typing.NamedTuple):
|
||
|
|
host: str
|
||
|
|
port: int
|
||
|
|
|
||
|
|
|
||
|
|
_KeyType = typing.TypeVar("_KeyType")
|
||
|
|
# Mapping keys are invariant but their values are covariant since
|
||
|
|
# you can only read them
|
||
|
|
# that is, you can't do `Mapping[str, Animal]()["fido"] = Dog()`
|
||
|
|
_CovariantValueType = typing.TypeVar("_CovariantValueType", covariant=True)
|
||
|
|
|
||
|
|
|
||
|
|
class URL:
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
url: str = "",
|
||
|
|
scope: Scope | None = None,
|
||
|
|
**components: typing.Any,
|
||
|
|
) -> None:
|
||
|
|
if scope is not None:
|
||
|
|
assert not url, 'Cannot set both "url" and "scope".'
|
||
|
|
assert not components, 'Cannot set both "scope" and "**components".'
|
||
|
|
scheme = scope.get("scheme", "http")
|
||
|
|
server = scope.get("server", None)
|
||
|
|
path = scope["path"]
|
||
|
|
query_string = scope.get("query_string", b"")
|
||
|
|
|
||
|
|
host_header = None
|
||
|
|
for key, value in scope["headers"]:
|
||
|
|
if key == b"host":
|
||
|
|
host_header = value.decode("latin-1")
|
||
|
|
break
|
||
|
|
|
||
|
|
if host_header is not None:
|
||
|
|
url = f"{scheme}://{host_header}{path}"
|
||
|
|
elif server is None:
|
||
|
|
url = path
|
||
|
|
else:
|
||
|
|
host, port = server
|
||
|
|
default_port = {"http": 80, "https": 443, "ws": 80, "wss": 443}[scheme]
|
||
|
|
if port == default_port:
|
||
|
|
url = f"{scheme}://{host}{path}"
|
||
|
|
else:
|
||
|
|
url = f"{scheme}://{host}:{port}{path}"
|
||
|
|
|
||
|
|
if query_string:
|
||
|
|
url += "?" + query_string.decode()
|
||
|
|
elif components:
|
||
|
|
assert not url, 'Cannot set both "url" and "**components".'
|
||
|
|
url = URL("").replace(**components).components.geturl()
|
||
|
|
|
||
|
|
self._url = url
|
||
|
|
|
||
|
|
@property
|
||
|
|
def components(self) -> SplitResult:
|
||
|
|
if not hasattr(self, "_components"):
|
||
|
|
self._components = urlsplit(self._url)
|
||
|
|
return self._components
|
||
|
|
|
||
|
|
@property
|
||
|
|
def scheme(self) -> str:
|
||
|
|
return self.components.scheme
|
||
|
|
|
||
|
|
@property
|
||
|
|
def netloc(self) -> str:
|
||
|
|
return self.components.netloc
|
||
|
|
|
||
|
|
@property
|
||
|
|
def path(self) -> str:
|
||
|
|
return self.components.path
|
||
|
|
|
||
|
|
@property
|
||
|
|
def query(self) -> str:
|
||
|
|
return self.components.query
|
||
|
|
|
||
|
|
@property
|
||
|
|
def fragment(self) -> str:
|
||
|
|
return self.components.fragment
|
||
|
|
|
||
|
|
@property
|
||
|
|
def username(self) -> None | str:
|
||
|
|
return self.components.username
|
||
|
|
|
||
|
|
@property
|
||
|
|
def password(self) -> None | str:
|
||
|
|
return self.components.password
|
||
|
|
|
||
|
|
@property
|
||
|
|
def hostname(self) -> None | str:
|
||
|
|
return self.components.hostname
|
||
|
|
|
||
|
|
@property
|
||
|
|
def port(self) -> int | None:
|
||
|
|
return self.components.port
|
||
|
|
|
||
|
|
@property
|
||
|
|
def is_secure(self) -> bool:
|
||
|
|
return self.scheme in ("https", "wss")
|
||
|
|
|
||
|
|
def replace(self, **kwargs: typing.Any) -> URL:
|
||
|
|
if (
|
||
|
|
"username" in kwargs
|
||
|
|
or "password" in kwargs
|
||
|
|
or "hostname" in kwargs
|
||
|
|
or "port" in kwargs
|
||
|
|
):
|
||
|
|
hostname = kwargs.pop("hostname", None)
|
||
|
|
port = kwargs.pop("port", self.port)
|
||
|
|
username = kwargs.pop("username", self.username)
|
||
|
|
password = kwargs.pop("password", self.password)
|
||
|
|
|
||
|
|
if hostname is None:
|
||
|
|
netloc = self.netloc
|
||
|
|
_, _, hostname = netloc.rpartition("@")
|
||
|
|
|
||
|
|
if hostname[-1] != "]":
|
||
|
|
hostname = hostname.rsplit(":", 1)[0]
|
||
|
|
|
||
|
|
netloc = hostname
|
||
|
|
if port is not None:
|
||
|
|
netloc += f":{port}"
|
||
|
|
if username is not None:
|
||
|
|
userpass = username
|
||
|
|
if password is not None:
|
||
|
|
userpass += f":{password}"
|
||
|
|
netloc = f"{userpass}@{netloc}"
|
||
|
|
|
||
|
|
kwargs["netloc"] = netloc
|
||
|
|
|
||
|
|
components = self.components._replace(**kwargs)
|
||
|
|
return self.__class__(components.geturl())
|
||
|
|
|
||
|
|
def include_query_params(self, **kwargs: typing.Any) -> URL:
|
||
|
|
params = MultiDict(parse_qsl(self.query, keep_blank_values=True))
|
||
|
|
params.update({str(key): str(value) for key, value in kwargs.items()})
|
||
|
|
query = urlencode(params.multi_items())
|
||
|
|
return self.replace(query=query)
|
||
|
|
|
||
|
|
def replace_query_params(self, **kwargs: typing.Any) -> URL:
|
||
|
|
query = urlencode([(str(key), str(value)) for key, value in kwargs.items()])
|
||
|
|
return self.replace(query=query)
|
||
|
|
|
||
|
|
def remove_query_params(self, keys: str | typing.Sequence[str]) -> URL:
|
||
|
|
if isinstance(keys, str):
|
||
|
|
keys = [keys]
|
||
|
|
params = MultiDict(parse_qsl(self.query, keep_blank_values=True))
|
||
|
|
for key in keys:
|
||
|
|
params.pop(key, None)
|
||
|
|
query = urlencode(params.multi_items())
|
||
|
|
return self.replace(query=query)
|
||
|
|
|
||
|
|
def __eq__(self, other: typing.Any) -> bool:
|
||
|
|
return str(self) == str(other)
|
||
|
|
|
||
|
|
def __str__(self) -> str:
|
||
|
|
return self._url
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
url = str(self)
|
||
|
|
if self.password:
|
||
|
|
url = str(self.replace(password="********"))
|
||
|
|
return f"{self.__class__.__name__}({repr(url)})"
|
||
|
|
|
||
|
|
|
||
|
|
class URLPath(str):
|
||
|
|
"""
|
||
|
|
A URL path string that may also hold an associated protocol and/or host.
|
||
|
|
Used by the routing to return `url_path_for` matches.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __new__(cls, path: str, protocol: str = "", host: str = "") -> URLPath:
|
||
|
|
assert protocol in ("http", "websocket", "")
|
||
|
|
return str.__new__(cls, path)
|
||
|
|
|
||
|
|
def __init__(self, path: str, protocol: str = "", host: str = "") -> None:
|
||
|
|
self.protocol = protocol
|
||
|
|
self.host = host
|
||
|
|
|
||
|
|
def make_absolute_url(self, base_url: str | URL) -> URL:
|
||
|
|
if isinstance(base_url, str):
|
||
|
|
base_url = URL(base_url)
|
||
|
|
if self.protocol:
|
||
|
|
scheme = {
|
||
|
|
"http": {True: "https", False: "http"},
|
||
|
|
"websocket": {True: "wss", False: "ws"},
|
||
|
|
}[self.protocol][base_url.is_secure]
|
||
|
|
else:
|
||
|
|
scheme = base_url.scheme
|
||
|
|
|
||
|
|
netloc = self.host or base_url.netloc
|
||
|
|
path = base_url.path.rstrip("/") + str(self)
|
||
|
|
return URL(scheme=scheme, netloc=netloc, path=path)
|
||
|
|
|
||
|
|
|
||
|
|
class Secret:
|
||
|
|
"""
|
||
|
|
Holds a string value that should not be revealed in tracebacks etc.
|
||
|
|
You should cast the value to `str` at the point it is required.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, value: str):
|
||
|
|
self._value = value
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
class_name = self.__class__.__name__
|
||
|
|
return f"{class_name}('**********')"
|
||
|
|
|
||
|
|
def __str__(self) -> str:
|
||
|
|
return self._value
|
||
|
|
|
||
|
|
def __bool__(self) -> bool:
|
||
|
|
return bool(self._value)
|
||
|
|
|
||
|
|
|
||
|
|
class CommaSeparatedStrings(typing.Sequence[str]):
|
||
|
|
def __init__(self, value: str | typing.Sequence[str]):
|
||
|
|
if isinstance(value, str):
|
||
|
|
splitter = shlex(value, posix=True)
|
||
|
|
splitter.whitespace = ","
|
||
|
|
splitter.whitespace_split = True
|
||
|
|
self._items = [item.strip() for item in splitter]
|
||
|
|
else:
|
||
|
|
self._items = list(value)
|
||
|
|
|
||
|
|
def __len__(self) -> int:
|
||
|
|
return len(self._items)
|
||
|
|
|
||
|
|
def __getitem__(self, index: int | slice) -> typing.Any:
|
||
|
|
return self._items[index]
|
||
|
|
|
||
|
|
def __iter__(self) -> typing.Iterator[str]:
|
||
|
|
return iter(self._items)
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
class_name = self.__class__.__name__
|
||
|
|
items = [item for item in self]
|
||
|
|
return f"{class_name}({items!r})"
|
||
|
|
|
||
|
|
def __str__(self) -> str:
|
||
|
|
return ", ".join(repr(item) for item in self)
|
||
|
|
|
||
|
|
|
||
|
|
class ImmutableMultiDict(typing.Mapping[_KeyType, _CovariantValueType]):
|
||
|
|
_dict: dict[_KeyType, _CovariantValueType]
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
*args: ImmutableMultiDict[_KeyType, _CovariantValueType]
|
||
|
|
| typing.Mapping[_KeyType, _CovariantValueType]
|
||
|
|
| typing.Iterable[tuple[_KeyType, _CovariantValueType]],
|
||
|
|
**kwargs: typing.Any,
|
||
|
|
) -> None:
|
||
|
|
assert len(args) < 2, "Too many arguments."
|
||
|
|
|
||
|
|
value: typing.Any = args[0] if args else []
|
||
|
|
if kwargs:
|
||
|
|
value = (
|
||
|
|
ImmutableMultiDict(value).multi_items()
|
||
|
|
+ ImmutableMultiDict(kwargs).multi_items()
|
||
|
|
)
|
||
|
|
|
||
|
|
if not value:
|
||
|
|
_items: list[tuple[typing.Any, typing.Any]] = []
|
||
|
|
elif hasattr(value, "multi_items"):
|
||
|
|
value = typing.cast(
|
||
|
|
ImmutableMultiDict[_KeyType, _CovariantValueType], value
|
||
|
|
)
|
||
|
|
_items = list(value.multi_items())
|
||
|
|
elif hasattr(value, "items"):
|
||
|
|
value = typing.cast(typing.Mapping[_KeyType, _CovariantValueType], value)
|
||
|
|
_items = list(value.items())
|
||
|
|
else:
|
||
|
|
value = typing.cast("list[tuple[typing.Any, typing.Any]]", value)
|
||
|
|
_items = list(value)
|
||
|
|
|
||
|
|
self._dict = {k: v for k, v in _items}
|
||
|
|
self._list = _items
|
||
|
|
|
||
|
|
def getlist(self, key: typing.Any) -> list[_CovariantValueType]:
|
||
|
|
return [item_value for item_key, item_value in self._list if item_key == key]
|
||
|
|
|
||
|
|
def keys(self) -> typing.KeysView[_KeyType]:
|
||
|
|
return self._dict.keys()
|
||
|
|
|
||
|
|
def values(self) -> typing.ValuesView[_CovariantValueType]:
|
||
|
|
return self._dict.values()
|
||
|
|
|
||
|
|
def items(self) -> typing.ItemsView[_KeyType, _CovariantValueType]:
|
||
|
|
return self._dict.items()
|
||
|
|
|
||
|
|
def multi_items(self) -> list[tuple[_KeyType, _CovariantValueType]]:
|
||
|
|
return list(self._list)
|
||
|
|
|
||
|
|
def __getitem__(self, key: _KeyType) -> _CovariantValueType:
|
||
|
|
return self._dict[key]
|
||
|
|
|
||
|
|
def __contains__(self, key: typing.Any) -> bool:
|
||
|
|
return key in self._dict
|
||
|
|
|
||
|
|
def __iter__(self) -> typing.Iterator[_KeyType]:
|
||
|
|
return iter(self.keys())
|
||
|
|
|
||
|
|
def __len__(self) -> int:
|
||
|
|
return len(self._dict)
|
||
|
|
|
||
|
|
def __eq__(self, other: typing.Any) -> bool:
|
||
|
|
if not isinstance(other, self.__class__):
|
||
|
|
return False
|
||
|
|
return sorted(self._list) == sorted(other._list)
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
class_name = self.__class__.__name__
|
||
|
|
items = self.multi_items()
|
||
|
|
return f"{class_name}({items!r})"
|
||
|
|
|
||
|
|
|
||
|
|
class MultiDict(ImmutableMultiDict[typing.Any, typing.Any]):
|
||
|
|
def __setitem__(self, key: typing.Any, value: typing.Any) -> None:
|
||
|
|
self.setlist(key, [value])
|
||
|
|
|
||
|
|
def __delitem__(self, key: typing.Any) -> None:
|
||
|
|
self._list = [(k, v) for k, v in self._list if k != key]
|
||
|
|
del self._dict[key]
|
||
|
|
|
||
|
|
def pop(self, key: typing.Any, default: typing.Any = None) -> typing.Any:
|
||
|
|
self._list = [(k, v) for k, v in self._list if k != key]
|
||
|
|
return self._dict.pop(key, default)
|
||
|
|
|
||
|
|
def popitem(self) -> tuple[typing.Any, typing.Any]:
|
||
|
|
key, value = self._dict.popitem()
|
||
|
|
self._list = [(k, v) for k, v in self._list if k != key]
|
||
|
|
return key, value
|
||
|
|
|
||
|
|
def poplist(self, key: typing.Any) -> list[typing.Any]:
|
||
|
|
values = [v for k, v in self._list if k == key]
|
||
|
|
self.pop(key)
|
||
|
|
return values
|
||
|
|
|
||
|
|
def clear(self) -> None:
|
||
|
|
self._dict.clear()
|
||
|
|
self._list.clear()
|
||
|
|
|
||
|
|
def setdefault(self, key: typing.Any, default: typing.Any = None) -> typing.Any:
|
||
|
|
if key not in self:
|
||
|
|
self._dict[key] = default
|
||
|
|
self._list.append((key, default))
|
||
|
|
|
||
|
|
return self[key]
|
||
|
|
|
||
|
|
def setlist(self, key: typing.Any, values: list[typing.Any]) -> None:
|
||
|
|
if not values:
|
||
|
|
self.pop(key, None)
|
||
|
|
else:
|
||
|
|
existing_items = [(k, v) for (k, v) in self._list if k != key]
|
||
|
|
self._list = existing_items + [(key, value) for value in values]
|
||
|
|
self._dict[key] = values[-1]
|
||
|
|
|
||
|
|
def append(self, key: typing.Any, value: typing.Any) -> None:
|
||
|
|
self._list.append((key, value))
|
||
|
|
self._dict[key] = value
|
||
|
|
|
||
|
|
def update(
|
||
|
|
self,
|
||
|
|
*args: MultiDict
|
||
|
|
| typing.Mapping[typing.Any, typing.Any]
|
||
|
|
| list[tuple[typing.Any, typing.Any]],
|
||
|
|
**kwargs: typing.Any,
|
||
|
|
) -> None:
|
||
|
|
value = MultiDict(*args, **kwargs)
|
||
|
|
existing_items = [(k, v) for (k, v) in self._list if k not in value.keys()]
|
||
|
|
self._list = existing_items + value.multi_items()
|
||
|
|
self._dict.update(value)
|
||
|
|
|
||
|
|
|
||
|
|
class QueryParams(ImmutableMultiDict[str, str]):
|
||
|
|
"""
|
||
|
|
An immutable multidict.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
*args: ImmutableMultiDict[typing.Any, typing.Any]
|
||
|
|
| typing.Mapping[typing.Any, typing.Any]
|
||
|
|
| list[tuple[typing.Any, typing.Any]]
|
||
|
|
| str
|
||
|
|
| bytes,
|
||
|
|
**kwargs: typing.Any,
|
||
|
|
) -> None:
|
||
|
|
assert len(args) < 2, "Too many arguments."
|
||
|
|
|
||
|
|
value = args[0] if args else []
|
||
|
|
|
||
|
|
if isinstance(value, str):
|
||
|
|
super().__init__(parse_qsl(value, keep_blank_values=True), **kwargs)
|
||
|
|
elif isinstance(value, bytes):
|
||
|
|
super().__init__(
|
||
|
|
parse_qsl(value.decode("latin-1"), keep_blank_values=True), **kwargs
|
||
|
|
)
|
||
|
|
else:
|
||
|
|
super().__init__(*args, **kwargs) # type: ignore[arg-type]
|
||
|
|
self._list = [(str(k), str(v)) for k, v in self._list]
|
||
|
|
self._dict = {str(k): str(v) for k, v in self._dict.items()}
|
||
|
|
|
||
|
|
def __str__(self) -> str:
|
||
|
|
return urlencode(self._list)
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
class_name = self.__class__.__name__
|
||
|
|
query_string = str(self)
|
||
|
|
return f"{class_name}({query_string!r})"
|
||
|
|
|
||
|
|
|
||
|
|
class UploadFile:
|
||
|
|
"""
|
||
|
|
An uploaded file included as part of the request data.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
file: typing.BinaryIO,
|
||
|
|
*,
|
||
|
|
size: int | None = None,
|
||
|
|
filename: str | None = None,
|
||
|
|
headers: Headers | None = None,
|
||
|
|
) -> None:
|
||
|
|
self.filename = filename
|
||
|
|
self.file = file
|
||
|
|
self.size = size
|
||
|
|
self.headers = headers or Headers()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def content_type(self) -> str | None:
|
||
|
|
return self.headers.get("content-type", None)
|
||
|
|
|
||
|
|
@property
|
||
|
|
def _in_memory(self) -> bool:
|
||
|
|
# check for SpooledTemporaryFile._rolled
|
||
|
|
rolled_to_disk = getattr(self.file, "_rolled", True)
|
||
|
|
return not rolled_to_disk
|
||
|
|
|
||
|
|
async def write(self, data: bytes) -> None:
|
||
|
|
if self.size is not None:
|
||
|
|
self.size += len(data)
|
||
|
|
|
||
|
|
if self._in_memory:
|
||
|
|
self.file.write(data)
|
||
|
|
else:
|
||
|
|
await run_in_threadpool(self.file.write, data)
|
||
|
|
|
||
|
|
async def read(self, size: int = -1) -> bytes:
|
||
|
|
if self._in_memory:
|
||
|
|
return self.file.read(size)
|
||
|
|
return await run_in_threadpool(self.file.read, size)
|
||
|
|
|
||
|
|
async def seek(self, offset: int) -> None:
|
||
|
|
if self._in_memory:
|
||
|
|
self.file.seek(offset)
|
||
|
|
else:
|
||
|
|
await run_in_threadpool(self.file.seek, offset)
|
||
|
|
|
||
|
|
async def close(self) -> None:
|
||
|
|
if self._in_memory:
|
||
|
|
self.file.close()
|
||
|
|
else:
|
||
|
|
await run_in_threadpool(self.file.close)
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
return (
|
||
|
|
f"{self.__class__.__name__}("
|
||
|
|
f"filename={self.filename!r}, "
|
||
|
|
f"size={self.size!r}, "
|
||
|
|
f"headers={self.headers!r})"
|
||
|
|
)
|
||
|
|
|
||
|
|
|
||
|
|
class FormData(ImmutableMultiDict[str, typing.Union[UploadFile, str]]):
|
||
|
|
"""
|
||
|
|
An immutable multidict, containing both file uploads and text input.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
*args: FormData
|
||
|
|
| typing.Mapping[str, str | UploadFile]
|
||
|
|
| list[tuple[str, str | UploadFile]],
|
||
|
|
**kwargs: str | UploadFile,
|
||
|
|
) -> None:
|
||
|
|
super().__init__(*args, **kwargs)
|
||
|
|
|
||
|
|
async def close(self) -> None:
|
||
|
|
for key, value in self.multi_items():
|
||
|
|
if isinstance(value, UploadFile):
|
||
|
|
await value.close()
|
||
|
|
|
||
|
|
|
||
|
|
class Headers(typing.Mapping[str, str]):
|
||
|
|
"""
|
||
|
|
An immutable, case-insensitive multidict.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self,
|
||
|
|
headers: typing.Mapping[str, str] | None = None,
|
||
|
|
raw: list[tuple[bytes, bytes]] | None = None,
|
||
|
|
scope: typing.MutableMapping[str, typing.Any] | None = None,
|
||
|
|
) -> None:
|
||
|
|
self._list: list[tuple[bytes, bytes]] = []
|
||
|
|
if headers is not None:
|
||
|
|
assert raw is None, 'Cannot set both "headers" and "raw".'
|
||
|
|
assert scope is None, 'Cannot set both "headers" and "scope".'
|
||
|
|
self._list = [
|
||
|
|
(key.lower().encode("latin-1"), value.encode("latin-1"))
|
||
|
|
for key, value in headers.items()
|
||
|
|
]
|
||
|
|
elif raw is not None:
|
||
|
|
assert scope is None, 'Cannot set both "raw" and "scope".'
|
||
|
|
self._list = raw
|
||
|
|
elif scope is not None:
|
||
|
|
# scope["headers"] isn't necessarily a list
|
||
|
|
# it might be a tuple or other iterable
|
||
|
|
self._list = scope["headers"] = list(scope["headers"])
|
||
|
|
|
||
|
|
@property
|
||
|
|
def raw(self) -> list[tuple[bytes, bytes]]:
|
||
|
|
return list(self._list)
|
||
|
|
|
||
|
|
def keys(self) -> list[str]: # type: ignore[override]
|
||
|
|
return [key.decode("latin-1") for key, value in self._list]
|
||
|
|
|
||
|
|
def values(self) -> list[str]: # type: ignore[override]
|
||
|
|
return [value.decode("latin-1") for key, value in self._list]
|
||
|
|
|
||
|
|
def items(self) -> list[tuple[str, str]]: # type: ignore[override]
|
||
|
|
return [
|
||
|
|
(key.decode("latin-1"), value.decode("latin-1"))
|
||
|
|
for key, value in self._list
|
||
|
|
]
|
||
|
|
|
||
|
|
def getlist(self, key: str) -> list[str]:
|
||
|
|
get_header_key = key.lower().encode("latin-1")
|
||
|
|
return [
|
||
|
|
item_value.decode("latin-1")
|
||
|
|
for item_key, item_value in self._list
|
||
|
|
if item_key == get_header_key
|
||
|
|
]
|
||
|
|
|
||
|
|
def mutablecopy(self) -> MutableHeaders:
|
||
|
|
return MutableHeaders(raw=self._list[:])
|
||
|
|
|
||
|
|
def __getitem__(self, key: str) -> str:
|
||
|
|
get_header_key = key.lower().encode("latin-1")
|
||
|
|
for header_key, header_value in self._list:
|
||
|
|
if header_key == get_header_key:
|
||
|
|
return header_value.decode("latin-1")
|
||
|
|
raise KeyError(key)
|
||
|
|
|
||
|
|
def __contains__(self, key: typing.Any) -> bool:
|
||
|
|
get_header_key = key.lower().encode("latin-1")
|
||
|
|
for header_key, header_value in self._list:
|
||
|
|
if header_key == get_header_key:
|
||
|
|
return True
|
||
|
|
return False
|
||
|
|
|
||
|
|
def __iter__(self) -> typing.Iterator[typing.Any]:
|
||
|
|
return iter(self.keys())
|
||
|
|
|
||
|
|
def __len__(self) -> int:
|
||
|
|
return len(self._list)
|
||
|
|
|
||
|
|
def __eq__(self, other: typing.Any) -> bool:
|
||
|
|
if not isinstance(other, Headers):
|
||
|
|
return False
|
||
|
|
return sorted(self._list) == sorted(other._list)
|
||
|
|
|
||
|
|
def __repr__(self) -> str:
|
||
|
|
class_name = self.__class__.__name__
|
||
|
|
as_dict = dict(self.items())
|
||
|
|
if len(as_dict) == len(self):
|
||
|
|
return f"{class_name}({as_dict!r})"
|
||
|
|
return f"{class_name}(raw={self.raw!r})"
|
||
|
|
|
||
|
|
|
||
|
|
class MutableHeaders(Headers):
|
||
|
|
def __setitem__(self, key: str, value: str) -> None:
|
||
|
|
"""
|
||
|
|
Set the header `key` to `value`, removing any duplicate entries.
|
||
|
|
Retains insertion order.
|
||
|
|
"""
|
||
|
|
set_key = key.lower().encode("latin-1")
|
||
|
|
set_value = value.encode("latin-1")
|
||
|
|
|
||
|
|
found_indexes: list[int] = []
|
||
|
|
for idx, (item_key, item_value) in enumerate(self._list):
|
||
|
|
if item_key == set_key:
|
||
|
|
found_indexes.append(idx)
|
||
|
|
|
||
|
|
for idx in reversed(found_indexes[1:]):
|
||
|
|
del self._list[idx]
|
||
|
|
|
||
|
|
if found_indexes:
|
||
|
|
idx = found_indexes[0]
|
||
|
|
self._list[idx] = (set_key, set_value)
|
||
|
|
else:
|
||
|
|
self._list.append((set_key, set_value))
|
||
|
|
|
||
|
|
def __delitem__(self, key: str) -> None:
|
||
|
|
"""
|
||
|
|
Remove the header `key`.
|
||
|
|
"""
|
||
|
|
del_key = key.lower().encode("latin-1")
|
||
|
|
|
||
|
|
pop_indexes: list[int] = []
|
||
|
|
for idx, (item_key, item_value) in enumerate(self._list):
|
||
|
|
if item_key == del_key:
|
||
|
|
pop_indexes.append(idx)
|
||
|
|
|
||
|
|
for idx in reversed(pop_indexes):
|
||
|
|
del self._list[idx]
|
||
|
|
|
||
|
|
def __ior__(self, other: typing.Mapping[str, str]) -> MutableHeaders:
|
||
|
|
if not isinstance(other, typing.Mapping):
|
||
|
|
raise TypeError(f"Expected a mapping but got {other.__class__.__name__}")
|
||
|
|
self.update(other)
|
||
|
|
return self
|
||
|
|
|
||
|
|
def __or__(self, other: typing.Mapping[str, str]) -> MutableHeaders:
|
||
|
|
if not isinstance(other, typing.Mapping):
|
||
|
|
raise TypeError(f"Expected a mapping but got {other.__class__.__name__}")
|
||
|
|
new = self.mutablecopy()
|
||
|
|
new.update(other)
|
||
|
|
return new
|
||
|
|
|
||
|
|
@property
|
||
|
|
def raw(self) -> list[tuple[bytes, bytes]]:
|
||
|
|
return self._list
|
||
|
|
|
||
|
|
def setdefault(self, key: str, value: str) -> str:
|
||
|
|
"""
|
||
|
|
If the header `key` does not exist, then set it to `value`.
|
||
|
|
Returns the header value.
|
||
|
|
"""
|
||
|
|
set_key = key.lower().encode("latin-1")
|
||
|
|
set_value = value.encode("latin-1")
|
||
|
|
|
||
|
|
for idx, (item_key, item_value) in enumerate(self._list):
|
||
|
|
if item_key == set_key:
|
||
|
|
return item_value.decode("latin-1")
|
||
|
|
self._list.append((set_key, set_value))
|
||
|
|
return value
|
||
|
|
|
||
|
|
def update(self, other: typing.Mapping[str, str]) -> None:
|
||
|
|
for key, val in other.items():
|
||
|
|
self[key] = val
|
||
|
|
|
||
|
|
def append(self, key: str, value: str) -> None:
|
||
|
|
"""
|
||
|
|
Append a header, preserving any duplicate entries.
|
||
|
|
"""
|
||
|
|
append_key = key.lower().encode("latin-1")
|
||
|
|
append_value = value.encode("latin-1")
|
||
|
|
self._list.append((append_key, append_value))
|
||
|
|
|
||
|
|
def add_vary_header(self, vary: str) -> None:
|
||
|
|
existing = self.get("vary")
|
||
|
|
if existing is not None:
|
||
|
|
vary = ", ".join([existing, vary])
|
||
|
|
self["vary"] = vary
|
||
|
|
|
||
|
|
|
||
|
|
class State:
|
||
|
|
"""
|
||
|
|
An object that can be used to store arbitrary state.
|
||
|
|
|
||
|
|
Used for `request.state` and `app.state`.
|
||
|
|
"""
|
||
|
|
|
||
|
|
_state: dict[str, typing.Any]
|
||
|
|
|
||
|
|
def __init__(self, state: dict[str, typing.Any] | None = None):
|
||
|
|
if state is None:
|
||
|
|
state = {}
|
||
|
|
super().__setattr__("_state", state)
|
||
|
|
|
||
|
|
def __setattr__(self, key: typing.Any, value: typing.Any) -> None:
|
||
|
|
self._state[key] = value
|
||
|
|
|
||
|
|
def __getattr__(self, key: typing.Any) -> typing.Any:
|
||
|
|
try:
|
||
|
|
return self._state[key]
|
||
|
|
except KeyError:
|
||
|
|
message = "'{}' object has no attribute '{}'"
|
||
|
|
raise AttributeError(message.format(self.__class__.__name__, key))
|
||
|
|
|
||
|
|
def __delattr__(self, key: typing.Any) -> None:
|
||
|
|
del self._state[key]
|