Третий коммит, добавление share, share_kb, а также ADMIN_ID
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182
myenv/Lib/site-packages/aiohttp/formdata.py
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182
myenv/Lib/site-packages/aiohttp/formdata.py
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import io
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import warnings
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from typing import Any, Iterable, List, Optional
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from urllib.parse import urlencode
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from multidict import MultiDict, MultiDictProxy
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from . import hdrs, multipart, payload
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from .helpers import guess_filename
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from .payload import Payload
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__all__ = ("FormData",)
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class FormData:
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"""Helper class for form body generation.
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Supports multipart/form-data and application/x-www-form-urlencoded.
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"""
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def __init__(
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self,
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fields: Iterable[Any] = (),
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quote_fields: bool = True,
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charset: Optional[str] = None,
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*,
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default_to_multipart: bool = False,
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) -> None:
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self._writer = multipart.MultipartWriter("form-data")
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self._fields: List[Any] = []
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self._is_multipart = default_to_multipart
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self._is_processed = False
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self._quote_fields = quote_fields
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self._charset = charset
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if isinstance(fields, dict):
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fields = list(fields.items())
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elif not isinstance(fields, (list, tuple)):
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fields = (fields,)
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self.add_fields(*fields)
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@property
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def is_multipart(self) -> bool:
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return self._is_multipart
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def add_field(
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self,
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name: str,
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value: Any,
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*,
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content_type: Optional[str] = None,
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filename: Optional[str] = None,
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content_transfer_encoding: Optional[str] = None,
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) -> None:
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if isinstance(value, io.IOBase):
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self._is_multipart = True
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elif isinstance(value, (bytes, bytearray, memoryview)):
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msg = (
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"In v4, passing bytes will no longer create a file field. "
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"Please explicitly use the filename parameter or pass a BytesIO object."
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)
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if filename is None and content_transfer_encoding is None:
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warnings.warn(msg, DeprecationWarning)
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filename = name
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type_options: MultiDict[str] = MultiDict({"name": name})
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if filename is not None and not isinstance(filename, str):
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raise TypeError("filename must be an instance of str. Got: %s" % filename)
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if filename is None and isinstance(value, io.IOBase):
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filename = guess_filename(value, name)
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if filename is not None:
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type_options["filename"] = filename
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self._is_multipart = True
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headers = {}
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if content_type is not None:
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if not isinstance(content_type, str):
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raise TypeError(
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"content_type must be an instance of str. Got: %s" % content_type
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)
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headers[hdrs.CONTENT_TYPE] = content_type
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self._is_multipart = True
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if content_transfer_encoding is not None:
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if not isinstance(content_transfer_encoding, str):
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raise TypeError(
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"content_transfer_encoding must be an instance"
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" of str. Got: %s" % content_transfer_encoding
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)
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msg = (
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"content_transfer_encoding is deprecated. "
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"To maintain compatibility with v4 please pass a BytesPayload."
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)
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warnings.warn(msg, DeprecationWarning)
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self._is_multipart = True
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self._fields.append((type_options, headers, value))
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def add_fields(self, *fields: Any) -> None:
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to_add = list(fields)
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while to_add:
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rec = to_add.pop(0)
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if isinstance(rec, io.IOBase):
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k = guess_filename(rec, "unknown")
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self.add_field(k, rec) # type: ignore[arg-type]
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elif isinstance(rec, (MultiDictProxy, MultiDict)):
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to_add.extend(rec.items())
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elif isinstance(rec, (list, tuple)) and len(rec) == 2:
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k, fp = rec
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self.add_field(k, fp) # type: ignore[arg-type]
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else:
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raise TypeError(
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"Only io.IOBase, multidict and (name, file) "
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"pairs allowed, use .add_field() for passing "
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"more complex parameters, got {!r}".format(rec)
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)
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def _gen_form_urlencoded(self) -> payload.BytesPayload:
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# form data (x-www-form-urlencoded)
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data = []
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for type_options, _, value in self._fields:
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data.append((type_options["name"], value))
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charset = self._charset if self._charset is not None else "utf-8"
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if charset == "utf-8":
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content_type = "application/x-www-form-urlencoded"
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else:
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content_type = "application/x-www-form-urlencoded; charset=%s" % charset
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return payload.BytesPayload(
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urlencode(data, doseq=True, encoding=charset).encode(),
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content_type=content_type,
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)
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def _gen_form_data(self) -> multipart.MultipartWriter:
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"""Encode a list of fields using the multipart/form-data MIME format"""
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if self._is_processed:
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raise RuntimeError("Form data has been processed already")
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for dispparams, headers, value in self._fields:
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try:
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if hdrs.CONTENT_TYPE in headers:
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part = payload.get_payload(
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value,
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content_type=headers[hdrs.CONTENT_TYPE],
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headers=headers,
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encoding=self._charset,
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)
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else:
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part = payload.get_payload(
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value, headers=headers, encoding=self._charset
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)
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except Exception as exc:
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raise TypeError(
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"Can not serialize value type: %r\n "
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"headers: %r\n value: %r" % (type(value), headers, value)
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) from exc
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if dispparams:
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part.set_content_disposition(
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"form-data", quote_fields=self._quote_fields, **dispparams
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)
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# FIXME cgi.FieldStorage doesn't likes body parts with
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# Content-Length which were sent via chunked transfer encoding
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assert part.headers is not None
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part.headers.popall(hdrs.CONTENT_LENGTH, None)
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self._writer.append_payload(part)
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self._is_processed = True
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return self._writer
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def __call__(self) -> Payload:
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if self._is_multipart:
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return self._gen_form_data()
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else:
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return self._gen_form_urlencoded()
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