1338 lines
47 KiB
Python
1338 lines
47 KiB
Python
import mimetypes
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import sys
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import typing as t
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from collections import defaultdict
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from datetime import datetime
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from datetime import timedelta
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from http.cookiejar import CookieJar
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from io import BytesIO
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from itertools import chain
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from random import random
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from tempfile import TemporaryFile
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from time import time
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from urllib.request import Request as _UrllibRequest
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from ._internal import _get_environ
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from ._internal import _make_encode_wrapper
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from ._internal import _wsgi_decoding_dance
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from ._internal import _wsgi_encoding_dance
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from .datastructures import Authorization
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from .datastructures import CallbackDict
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from .datastructures import CombinedMultiDict
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from .datastructures import EnvironHeaders
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from .datastructures import FileMultiDict
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from .datastructures import Headers
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from .datastructures import MultiDict
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from .http import dump_cookie
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from .http import dump_options_header
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from .http import parse_options_header
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from .sansio.multipart import Data
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from .sansio.multipart import Epilogue
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from .sansio.multipart import Field
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from .sansio.multipart import File
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from .sansio.multipart import MultipartEncoder
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from .sansio.multipart import Preamble
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from .urls import iri_to_uri
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from .urls import url_encode
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from .urls import url_fix
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from .urls import url_parse
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from .urls import url_unparse
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from .urls import url_unquote
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from .utils import cached_property
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from .utils import get_content_type
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from .wrappers.request import Request
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from .wrappers.response import Response
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from .wsgi import ClosingIterator
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from .wsgi import get_current_url
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if t.TYPE_CHECKING:
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from _typeshed.wsgi import WSGIApplication
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from _typeshed.wsgi import WSGIEnvironment
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def stream_encode_multipart(
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data: t.Mapping[str, t.Any],
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use_tempfile: bool = True,
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threshold: int = 1024 * 500,
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boundary: t.Optional[str] = None,
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charset: str = "utf-8",
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) -> t.Tuple[t.IO[bytes], int, str]:
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"""Encode a dict of values (either strings or file descriptors or
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:class:`FileStorage` objects.) into a multipart encoded string stored
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in a file descriptor.
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"""
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if boundary is None:
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boundary = f"---------------WerkzeugFormPart_{time()}{random()}"
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stream: t.IO[bytes] = BytesIO()
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total_length = 0
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on_disk = False
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write_binary: t.Callable[[bytes], int]
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if use_tempfile:
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def write_binary(s: bytes) -> int:
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nonlocal stream, total_length, on_disk
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if on_disk:
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return stream.write(s)
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else:
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length = len(s)
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if length + total_length <= threshold:
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stream.write(s)
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else:
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new_stream = t.cast(t.IO[bytes], TemporaryFile("wb+"))
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new_stream.write(stream.getvalue()) # type: ignore
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new_stream.write(s)
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stream = new_stream
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on_disk = True
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total_length += length
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return length
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else:
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write_binary = stream.write
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encoder = MultipartEncoder(boundary.encode())
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write_binary(encoder.send_event(Preamble(data=b"")))
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for key, value in _iter_data(data):
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reader = getattr(value, "read", None)
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if reader is not None:
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filename = getattr(value, "filename", getattr(value, "name", None))
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content_type = getattr(value, "content_type", None)
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if content_type is None:
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content_type = (
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filename
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and mimetypes.guess_type(filename)[0]
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or "application/octet-stream"
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)
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headers = Headers([("Content-Type", content_type)])
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if filename is None:
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write_binary(encoder.send_event(Field(name=key, headers=headers)))
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else:
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write_binary(
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encoder.send_event(
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File(name=key, filename=filename, headers=headers)
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)
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)
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while True:
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chunk = reader(16384)
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if not chunk:
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break
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write_binary(encoder.send_event(Data(data=chunk, more_data=True)))
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else:
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if not isinstance(value, str):
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value = str(value)
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write_binary(encoder.send_event(Field(name=key, headers=Headers())))
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write_binary(
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encoder.send_event(Data(data=value.encode(charset), more_data=False))
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)
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write_binary(encoder.send_event(Epilogue(data=b"")))
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length = stream.tell()
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stream.seek(0)
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return stream, length, boundary
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def encode_multipart(
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values: t.Mapping[str, t.Any],
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boundary: t.Optional[str] = None,
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charset: str = "utf-8",
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) -> t.Tuple[str, bytes]:
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"""Like `stream_encode_multipart` but returns a tuple in the form
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(``boundary``, ``data``) where data is bytes.
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"""
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stream, length, boundary = stream_encode_multipart(
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values, use_tempfile=False, boundary=boundary, charset=charset
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)
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return boundary, stream.read()
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class _TestCookieHeaders:
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"""A headers adapter for cookielib"""
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def __init__(self, headers: t.Union[Headers, t.List[t.Tuple[str, str]]]) -> None:
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self.headers = headers
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def getheaders(self, name: str) -> t.Iterable[str]:
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headers = []
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name = name.lower()
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for k, v in self.headers:
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if k.lower() == name:
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headers.append(v)
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return headers
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def get_all(
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self, name: str, default: t.Optional[t.Iterable[str]] = None
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) -> t.Iterable[str]:
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headers = self.getheaders(name)
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if not headers:
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return default # type: ignore
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return headers
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class _TestCookieResponse:
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"""Something that looks like a httplib.HTTPResponse, but is actually just an
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adapter for our test responses to make them available for cookielib.
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"""
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def __init__(self, headers: t.Union[Headers, t.List[t.Tuple[str, str]]]) -> None:
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self.headers = _TestCookieHeaders(headers)
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def info(self) -> _TestCookieHeaders:
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return self.headers
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class _TestCookieJar(CookieJar):
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"""A cookielib.CookieJar modified to inject and read cookie headers from
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and to wsgi environments, and wsgi application responses.
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"""
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def inject_wsgi(self, environ: "WSGIEnvironment") -> None:
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"""Inject the cookies as client headers into the server's wsgi
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environment.
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"""
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cvals = [f"{c.name}={c.value}" for c in self]
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if cvals:
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environ["HTTP_COOKIE"] = "; ".join(cvals)
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else:
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environ.pop("HTTP_COOKIE", None)
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def extract_wsgi(
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self,
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environ: "WSGIEnvironment",
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headers: t.Union[Headers, t.List[t.Tuple[str, str]]],
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) -> None:
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"""Extract the server's set-cookie headers as cookies into the
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cookie jar.
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"""
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self.extract_cookies(
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_TestCookieResponse(headers), # type: ignore
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_UrllibRequest(get_current_url(environ)),
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)
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def _iter_data(data: t.Mapping[str, t.Any]) -> t.Iterator[t.Tuple[str, t.Any]]:
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"""Iterate over a mapping that might have a list of values, yielding
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all key, value pairs. Almost like iter_multi_items but only allows
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lists, not tuples, of values so tuples can be used for files.
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"""
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if isinstance(data, MultiDict):
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yield from data.items(multi=True)
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else:
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for key, value in data.items():
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if isinstance(value, list):
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for v in value:
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yield key, v
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else:
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yield key, value
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_TAnyMultiDict = t.TypeVar("_TAnyMultiDict", bound=MultiDict)
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class EnvironBuilder:
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"""This class can be used to conveniently create a WSGI environment
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for testing purposes. It can be used to quickly create WSGI environments
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or request objects from arbitrary data.
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The signature of this class is also used in some other places as of
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Werkzeug 0.5 (:func:`create_environ`, :meth:`Response.from_values`,
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:meth:`Client.open`). Because of this most of the functionality is
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available through the constructor alone.
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Files and regular form data can be manipulated independently of each
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other with the :attr:`form` and :attr:`files` attributes, but are
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passed with the same argument to the constructor: `data`.
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`data` can be any of these values:
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- a `str` or `bytes` object: The object is converted into an
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:attr:`input_stream`, the :attr:`content_length` is set and you have to
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provide a :attr:`content_type`.
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- a `dict` or :class:`MultiDict`: The keys have to be strings. The values
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have to be either any of the following objects, or a list of any of the
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following objects:
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- a :class:`file`-like object: These are converted into
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:class:`FileStorage` objects automatically.
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- a `tuple`: The :meth:`~FileMultiDict.add_file` method is called
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with the key and the unpacked `tuple` items as positional
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arguments.
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- a `str`: The string is set as form data for the associated key.
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- a file-like object: The object content is loaded in memory and then
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handled like a regular `str` or a `bytes`.
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:param path: the path of the request. In the WSGI environment this will
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end up as `PATH_INFO`. If the `query_string` is not defined
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and there is a question mark in the `path` everything after
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it is used as query string.
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:param base_url: the base URL is a URL that is used to extract the WSGI
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URL scheme, host (server name + server port) and the
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script root (`SCRIPT_NAME`).
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:param query_string: an optional string or dict with URL parameters.
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:param method: the HTTP method to use, defaults to `GET`.
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:param input_stream: an optional input stream. Do not specify this and
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`data`. As soon as an input stream is set you can't
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modify :attr:`args` and :attr:`files` unless you
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set the :attr:`input_stream` to `None` again.
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:param content_type: The content type for the request. As of 0.5 you
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don't have to provide this when specifying files
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and form data via `data`.
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:param content_length: The content length for the request. You don't
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have to specify this when providing data via
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`data`.
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:param errors_stream: an optional error stream that is used for
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`wsgi.errors`. Defaults to :data:`stderr`.
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:param multithread: controls `wsgi.multithread`. Defaults to `False`.
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:param multiprocess: controls `wsgi.multiprocess`. Defaults to `False`.
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:param run_once: controls `wsgi.run_once`. Defaults to `False`.
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:param headers: an optional list or :class:`Headers` object of headers.
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:param data: a string or dict of form data or a file-object.
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See explanation above.
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:param json: An object to be serialized and assigned to ``data``.
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Defaults the content type to ``"application/json"``.
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Serialized with the function assigned to :attr:`json_dumps`.
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:param environ_base: an optional dict of environment defaults.
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:param environ_overrides: an optional dict of environment overrides.
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:param charset: the charset used to encode string data.
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:param auth: An authorization object to use for the
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``Authorization`` header value. A ``(username, password)`` tuple
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is a shortcut for ``Basic`` authorization.
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.. versionchanged:: 2.1
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``CONTENT_TYPE`` and ``CONTENT_LENGTH`` are not duplicated as
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header keys in the environ.
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.. versionchanged:: 2.0
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``REQUEST_URI`` and ``RAW_URI`` is the full raw URI including
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the query string, not only the path.
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.. versionchanged:: 2.0
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The default :attr:`request_class` is ``Request`` instead of
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``BaseRequest``.
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.. versionadded:: 2.0
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Added the ``auth`` parameter.
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.. versionadded:: 0.15
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The ``json`` param and :meth:`json_dumps` method.
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.. versionadded:: 0.15
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The environ has keys ``REQUEST_URI`` and ``RAW_URI`` containing
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the path before percent-decoding. This is not part of the WSGI
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PEP, but many WSGI servers include it.
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.. versionchanged:: 0.6
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``path`` and ``base_url`` can now be unicode strings that are
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encoded with :func:`iri_to_uri`.
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"""
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#: the server protocol to use. defaults to HTTP/1.1
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server_protocol = "HTTP/1.1"
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#: the wsgi version to use. defaults to (1, 0)
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wsgi_version = (1, 0)
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#: The default request class used by :meth:`get_request`.
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request_class = Request
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import json
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#: The serialization function used when ``json`` is passed.
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json_dumps = staticmethod(json.dumps)
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del json
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_args: t.Optional[MultiDict]
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_query_string: t.Optional[str]
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_input_stream: t.Optional[t.IO[bytes]]
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_form: t.Optional[MultiDict]
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_files: t.Optional[FileMultiDict]
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def __init__(
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self,
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path: str = "/",
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base_url: t.Optional[str] = None,
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query_string: t.Optional[t.Union[t.Mapping[str, str], str]] = None,
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method: str = "GET",
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input_stream: t.Optional[t.IO[bytes]] = None,
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content_type: t.Optional[str] = None,
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content_length: t.Optional[int] = None,
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errors_stream: t.Optional[t.IO[str]] = None,
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multithread: bool = False,
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multiprocess: bool = False,
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run_once: bool = False,
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headers: t.Optional[t.Union[Headers, t.Iterable[t.Tuple[str, str]]]] = None,
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data: t.Optional[
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t.Union[t.IO[bytes], str, bytes, t.Mapping[str, t.Any]]
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] = None,
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environ_base: t.Optional[t.Mapping[str, t.Any]] = None,
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environ_overrides: t.Optional[t.Mapping[str, t.Any]] = None,
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charset: str = "utf-8",
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mimetype: t.Optional[str] = None,
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json: t.Optional[t.Mapping[str, t.Any]] = None,
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auth: t.Optional[t.Union[Authorization, t.Tuple[str, str]]] = None,
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) -> None:
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path_s = _make_encode_wrapper(path)
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if query_string is not None and path_s("?") in path:
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raise ValueError("Query string is defined in the path and as an argument")
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request_uri = url_parse(path)
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if query_string is None and path_s("?") in path:
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query_string = request_uri.query
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self.charset = charset
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self.path = iri_to_uri(request_uri.path)
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self.request_uri = path
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if base_url is not None:
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base_url = url_fix(iri_to_uri(base_url, charset), charset)
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self.base_url = base_url # type: ignore
|
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if isinstance(query_string, (bytes, str)):
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self.query_string = query_string
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else:
|
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if query_string is None:
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query_string = MultiDict()
|
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elif not isinstance(query_string, MultiDict):
|
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query_string = MultiDict(query_string)
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self.args = query_string
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self.method = method
|
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if headers is None:
|
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headers = Headers()
|
|
elif not isinstance(headers, Headers):
|
|
headers = Headers(headers)
|
|
self.headers = headers
|
|
if content_type is not None:
|
|
self.content_type = content_type
|
|
if errors_stream is None:
|
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errors_stream = sys.stderr
|
|
self.errors_stream = errors_stream
|
|
self.multithread = multithread
|
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self.multiprocess = multiprocess
|
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self.run_once = run_once
|
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self.environ_base = environ_base
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|
self.environ_overrides = environ_overrides
|
|
self.input_stream = input_stream
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|
self.content_length = content_length
|
|
self.closed = False
|
|
|
|
if auth is not None:
|
|
if isinstance(auth, tuple):
|
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auth = Authorization(
|
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"basic", {"username": auth[0], "password": auth[1]}
|
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)
|
|
|
|
self.headers.set("Authorization", auth.to_header())
|
|
|
|
if json is not None:
|
|
if data is not None:
|
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raise TypeError("can't provide both json and data")
|
|
|
|
data = self.json_dumps(json)
|
|
|
|
if self.content_type is None:
|
|
self.content_type = "application/json"
|
|
|
|
if data:
|
|
if input_stream is not None:
|
|
raise TypeError("can't provide input stream and data")
|
|
if hasattr(data, "read"):
|
|
data = data.read() # type: ignore
|
|
if isinstance(data, str):
|
|
data = data.encode(self.charset)
|
|
if isinstance(data, bytes):
|
|
self.input_stream = BytesIO(data)
|
|
if self.content_length is None:
|
|
self.content_length = len(data)
|
|
else:
|
|
for key, value in _iter_data(data): # type: ignore
|
|
if isinstance(value, (tuple, dict)) or hasattr(value, "read"):
|
|
self._add_file_from_data(key, value)
|
|
else:
|
|
self.form.setlistdefault(key).append(value)
|
|
|
|
if mimetype is not None:
|
|
self.mimetype = mimetype
|
|
|
|
@classmethod
|
|
def from_environ(
|
|
cls, environ: "WSGIEnvironment", **kwargs: t.Any
|
|
) -> "EnvironBuilder":
|
|
"""Turn an environ dict back into a builder. Any extra kwargs
|
|
override the args extracted from the environ.
|
|
|
|
.. versionchanged:: 2.0
|
|
Path and query values are passed through the WSGI decoding
|
|
dance to avoid double encoding.
|
|
|
|
.. versionadded:: 0.15
|
|
"""
|
|
headers = Headers(EnvironHeaders(environ))
|
|
out = {
|
|
"path": _wsgi_decoding_dance(environ["PATH_INFO"]),
|
|
"base_url": cls._make_base_url(
|
|
environ["wsgi.url_scheme"],
|
|
headers.pop("Host"),
|
|
_wsgi_decoding_dance(environ["SCRIPT_NAME"]),
|
|
),
|
|
"query_string": _wsgi_decoding_dance(environ["QUERY_STRING"]),
|
|
"method": environ["REQUEST_METHOD"],
|
|
"input_stream": environ["wsgi.input"],
|
|
"content_type": headers.pop("Content-Type", None),
|
|
"content_length": headers.pop("Content-Length", None),
|
|
"errors_stream": environ["wsgi.errors"],
|
|
"multithread": environ["wsgi.multithread"],
|
|
"multiprocess": environ["wsgi.multiprocess"],
|
|
"run_once": environ["wsgi.run_once"],
|
|
"headers": headers,
|
|
}
|
|
out.update(kwargs)
|
|
return cls(**out)
|
|
|
|
def _add_file_from_data(
|
|
self,
|
|
key: str,
|
|
value: t.Union[
|
|
t.IO[bytes], t.Tuple[t.IO[bytes], str], t.Tuple[t.IO[bytes], str, str]
|
|
],
|
|
) -> None:
|
|
"""Called in the EnvironBuilder to add files from the data dict."""
|
|
if isinstance(value, tuple):
|
|
self.files.add_file(key, *value)
|
|
else:
|
|
self.files.add_file(key, value)
|
|
|
|
@staticmethod
|
|
def _make_base_url(scheme: str, host: str, script_root: str) -> str:
|
|
return url_unparse((scheme, host, script_root, "", "")).rstrip("/") + "/"
|
|
|
|
@property
|
|
def base_url(self) -> str:
|
|
"""The base URL is used to extract the URL scheme, host name,
|
|
port, and root path.
|
|
"""
|
|
return self._make_base_url(self.url_scheme, self.host, self.script_root)
|
|
|
|
@base_url.setter
|
|
def base_url(self, value: t.Optional[str]) -> None:
|
|
if value is None:
|
|
scheme = "http"
|
|
netloc = "localhost"
|
|
script_root = ""
|
|
else:
|
|
scheme, netloc, script_root, qs, anchor = url_parse(value)
|
|
if qs or anchor:
|
|
raise ValueError("base url must not contain a query string or fragment")
|
|
self.script_root = script_root.rstrip("/")
|
|
self.host = netloc
|
|
self.url_scheme = scheme
|
|
|
|
@property
|
|
def content_type(self) -> t.Optional[str]:
|
|
"""The content type for the request. Reflected from and to
|
|
the :attr:`headers`. Do not set if you set :attr:`files` or
|
|
:attr:`form` for auto detection.
|
|
"""
|
|
ct = self.headers.get("Content-Type")
|
|
if ct is None and not self._input_stream:
|
|
if self._files:
|
|
return "multipart/form-data"
|
|
if self._form:
|
|
return "application/x-www-form-urlencoded"
|
|
return None
|
|
return ct
|
|
|
|
@content_type.setter
|
|
def content_type(self, value: t.Optional[str]) -> None:
|
|
if value is None:
|
|
self.headers.pop("Content-Type", None)
|
|
else:
|
|
self.headers["Content-Type"] = value
|
|
|
|
@property
|
|
def mimetype(self) -> t.Optional[str]:
|
|
"""The mimetype (content type without charset etc.)
|
|
|
|
.. versionadded:: 0.14
|
|
"""
|
|
ct = self.content_type
|
|
return ct.split(";")[0].strip() if ct else None
|
|
|
|
@mimetype.setter
|
|
def mimetype(self, value: str) -> None:
|
|
self.content_type = get_content_type(value, self.charset)
|
|
|
|
@property
|
|
def mimetype_params(self) -> t.Mapping[str, str]:
|
|
"""The mimetype parameters as dict. For example if the
|
|
content type is ``text/html; charset=utf-8`` the params would be
|
|
``{'charset': 'utf-8'}``.
|
|
|
|
.. versionadded:: 0.14
|
|
"""
|
|
|
|
def on_update(d: CallbackDict) -> None:
|
|
self.headers["Content-Type"] = dump_options_header(self.mimetype, d)
|
|
|
|
d = parse_options_header(self.headers.get("content-type", ""))[1]
|
|
return CallbackDict(d, on_update)
|
|
|
|
@property
|
|
def content_length(self) -> t.Optional[int]:
|
|
"""The content length as integer. Reflected from and to the
|
|
:attr:`headers`. Do not set if you set :attr:`files` or
|
|
:attr:`form` for auto detection.
|
|
"""
|
|
return self.headers.get("Content-Length", type=int)
|
|
|
|
@content_length.setter
|
|
def content_length(self, value: t.Optional[int]) -> None:
|
|
if value is None:
|
|
self.headers.pop("Content-Length", None)
|
|
else:
|
|
self.headers["Content-Length"] = str(value)
|
|
|
|
def _get_form(self, name: str, storage: t.Type[_TAnyMultiDict]) -> _TAnyMultiDict:
|
|
"""Common behavior for getting the :attr:`form` and
|
|
:attr:`files` properties.
|
|
|
|
:param name: Name of the internal cached attribute.
|
|
:param storage: Storage class used for the data.
|
|
"""
|
|
if self.input_stream is not None:
|
|
raise AttributeError("an input stream is defined")
|
|
|
|
rv = getattr(self, name)
|
|
|
|
if rv is None:
|
|
rv = storage()
|
|
setattr(self, name, rv)
|
|
|
|
return rv # type: ignore
|
|
|
|
def _set_form(self, name: str, value: MultiDict) -> None:
|
|
"""Common behavior for setting the :attr:`form` and
|
|
:attr:`files` properties.
|
|
|
|
:param name: Name of the internal cached attribute.
|
|
:param value: Value to assign to the attribute.
|
|
"""
|
|
self._input_stream = None
|
|
setattr(self, name, value)
|
|
|
|
@property
|
|
def form(self) -> MultiDict:
|
|
"""A :class:`MultiDict` of form values."""
|
|
return self._get_form("_form", MultiDict)
|
|
|
|
@form.setter
|
|
def form(self, value: MultiDict) -> None:
|
|
self._set_form("_form", value)
|
|
|
|
@property
|
|
def files(self) -> FileMultiDict:
|
|
"""A :class:`FileMultiDict` of uploaded files. Use
|
|
:meth:`~FileMultiDict.add_file` to add new files.
|
|
"""
|
|
return self._get_form("_files", FileMultiDict)
|
|
|
|
@files.setter
|
|
def files(self, value: FileMultiDict) -> None:
|
|
self._set_form("_files", value)
|
|
|
|
@property
|
|
def input_stream(self) -> t.Optional[t.IO[bytes]]:
|
|
"""An optional input stream. This is mutually exclusive with
|
|
setting :attr:`form` and :attr:`files`, setting it will clear
|
|
those. Do not provide this if the method is not ``POST`` or
|
|
another method that has a body.
|
|
"""
|
|
return self._input_stream
|
|
|
|
@input_stream.setter
|
|
def input_stream(self, value: t.Optional[t.IO[bytes]]) -> None:
|
|
self._input_stream = value
|
|
self._form = None
|
|
self._files = None
|
|
|
|
@property
|
|
def query_string(self) -> str:
|
|
"""The query string. If you set this to a string
|
|
:attr:`args` will no longer be available.
|
|
"""
|
|
if self._query_string is None:
|
|
if self._args is not None:
|
|
return url_encode(self._args, charset=self.charset)
|
|
return ""
|
|
return self._query_string
|
|
|
|
@query_string.setter
|
|
def query_string(self, value: t.Optional[str]) -> None:
|
|
self._query_string = value
|
|
self._args = None
|
|
|
|
@property
|
|
def args(self) -> MultiDict:
|
|
"""The URL arguments as :class:`MultiDict`."""
|
|
if self._query_string is not None:
|
|
raise AttributeError("a query string is defined")
|
|
if self._args is None:
|
|
self._args = MultiDict()
|
|
return self._args
|
|
|
|
@args.setter
|
|
def args(self, value: t.Optional[MultiDict]) -> None:
|
|
self._query_string = None
|
|
self._args = value
|
|
|
|
@property
|
|
def server_name(self) -> str:
|
|
"""The server name (read-only, use :attr:`host` to set)"""
|
|
return self.host.split(":", 1)[0]
|
|
|
|
@property
|
|
def server_port(self) -> int:
|
|
"""The server port as integer (read-only, use :attr:`host` to set)"""
|
|
pieces = self.host.split(":", 1)
|
|
|
|
if len(pieces) == 2:
|
|
try:
|
|
return int(pieces[1])
|
|
except ValueError:
|
|
pass
|
|
|
|
if self.url_scheme == "https":
|
|
return 443
|
|
return 80
|
|
|
|
def __del__(self) -> None:
|
|
try:
|
|
self.close()
|
|
except Exception:
|
|
pass
|
|
|
|
def close(self) -> None:
|
|
"""Closes all files. If you put real :class:`file` objects into the
|
|
:attr:`files` dict you can call this method to automatically close
|
|
them all in one go.
|
|
"""
|
|
if self.closed:
|
|
return
|
|
try:
|
|
files = self.files.values()
|
|
except AttributeError:
|
|
files = () # type: ignore
|
|
for f in files:
|
|
try:
|
|
f.close()
|
|
except Exception:
|
|
pass
|
|
self.closed = True
|
|
|
|
def get_environ(self) -> "WSGIEnvironment":
|
|
"""Return the built environ.
|
|
|
|
.. versionchanged:: 0.15
|
|
The content type and length headers are set based on
|
|
input stream detection. Previously this only set the WSGI
|
|
keys.
|
|
"""
|
|
input_stream = self.input_stream
|
|
content_length = self.content_length
|
|
|
|
mimetype = self.mimetype
|
|
content_type = self.content_type
|
|
|
|
if input_stream is not None:
|
|
start_pos = input_stream.tell()
|
|
input_stream.seek(0, 2)
|
|
end_pos = input_stream.tell()
|
|
input_stream.seek(start_pos)
|
|
content_length = end_pos - start_pos
|
|
elif mimetype == "multipart/form-data":
|
|
input_stream, content_length, boundary = stream_encode_multipart(
|
|
CombinedMultiDict([self.form, self.files]), charset=self.charset
|
|
)
|
|
content_type = f'{mimetype}; boundary="{boundary}"'
|
|
elif mimetype == "application/x-www-form-urlencoded":
|
|
form_encoded = url_encode(self.form, charset=self.charset).encode("ascii")
|
|
content_length = len(form_encoded)
|
|
input_stream = BytesIO(form_encoded)
|
|
else:
|
|
input_stream = BytesIO()
|
|
|
|
result: "WSGIEnvironment" = {}
|
|
if self.environ_base:
|
|
result.update(self.environ_base)
|
|
|
|
def _path_encode(x: str) -> str:
|
|
return _wsgi_encoding_dance(url_unquote(x, self.charset), self.charset)
|
|
|
|
raw_uri = _wsgi_encoding_dance(self.request_uri, self.charset)
|
|
result.update(
|
|
{
|
|
"REQUEST_METHOD": self.method,
|
|
"SCRIPT_NAME": _path_encode(self.script_root),
|
|
"PATH_INFO": _path_encode(self.path),
|
|
"QUERY_STRING": _wsgi_encoding_dance(self.query_string, self.charset),
|
|
# Non-standard, added by mod_wsgi, uWSGI
|
|
"REQUEST_URI": raw_uri,
|
|
# Non-standard, added by gunicorn
|
|
"RAW_URI": raw_uri,
|
|
"SERVER_NAME": self.server_name,
|
|
"SERVER_PORT": str(self.server_port),
|
|
"HTTP_HOST": self.host,
|
|
"SERVER_PROTOCOL": self.server_protocol,
|
|
"wsgi.version": self.wsgi_version,
|
|
"wsgi.url_scheme": self.url_scheme,
|
|
"wsgi.input": input_stream,
|
|
"wsgi.errors": self.errors_stream,
|
|
"wsgi.multithread": self.multithread,
|
|
"wsgi.multiprocess": self.multiprocess,
|
|
"wsgi.run_once": self.run_once,
|
|
}
|
|
)
|
|
|
|
headers = self.headers.copy()
|
|
# Don't send these as headers, they're part of the environ.
|
|
headers.remove("Content-Type")
|
|
headers.remove("Content-Length")
|
|
|
|
if content_type is not None:
|
|
result["CONTENT_TYPE"] = content_type
|
|
|
|
if content_length is not None:
|
|
result["CONTENT_LENGTH"] = str(content_length)
|
|
|
|
combined_headers = defaultdict(list)
|
|
|
|
for key, value in headers.to_wsgi_list():
|
|
combined_headers[f"HTTP_{key.upper().replace('-', '_')}"].append(value)
|
|
|
|
for key, values in combined_headers.items():
|
|
result[key] = ", ".join(values)
|
|
|
|
if self.environ_overrides:
|
|
result.update(self.environ_overrides)
|
|
|
|
return result
|
|
|
|
def get_request(self, cls: t.Optional[t.Type[Request]] = None) -> Request:
|
|
"""Returns a request with the data. If the request class is not
|
|
specified :attr:`request_class` is used.
|
|
|
|
:param cls: The request wrapper to use.
|
|
"""
|
|
if cls is None:
|
|
cls = self.request_class
|
|
|
|
return cls(self.get_environ())
|
|
|
|
|
|
class ClientRedirectError(Exception):
|
|
"""If a redirect loop is detected when using follow_redirects=True with
|
|
the :cls:`Client`, then this exception is raised.
|
|
"""
|
|
|
|
|
|
class Client:
|
|
"""This class allows you to send requests to a wrapped application.
|
|
|
|
The use_cookies parameter indicates whether cookies should be stored and
|
|
sent for subsequent requests. This is True by default, but passing False
|
|
will disable this behaviour.
|
|
|
|
If you want to request some subdomain of your application you may set
|
|
`allow_subdomain_redirects` to `True` as if not no external redirects
|
|
are allowed.
|
|
|
|
.. versionchanged:: 2.1
|
|
Removed deprecated behavior of treating the response as a
|
|
tuple. All data is available as properties on the returned
|
|
response object.
|
|
|
|
.. versionchanged:: 2.0
|
|
``response_wrapper`` is always a subclass of
|
|
:class:``TestResponse``.
|
|
|
|
.. versionchanged:: 0.5
|
|
Added the ``use_cookies`` parameter.
|
|
"""
|
|
|
|
def __init__(
|
|
self,
|
|
application: "WSGIApplication",
|
|
response_wrapper: t.Optional[t.Type["Response"]] = None,
|
|
use_cookies: bool = True,
|
|
allow_subdomain_redirects: bool = False,
|
|
) -> None:
|
|
self.application = application
|
|
|
|
if response_wrapper in {None, Response}:
|
|
response_wrapper = TestResponse
|
|
elif not isinstance(response_wrapper, TestResponse):
|
|
response_wrapper = type(
|
|
"WrapperTestResponse",
|
|
(TestResponse, response_wrapper), # type: ignore
|
|
{},
|
|
)
|
|
|
|
self.response_wrapper = t.cast(t.Type["TestResponse"], response_wrapper)
|
|
|
|
if use_cookies:
|
|
self.cookie_jar: t.Optional[_TestCookieJar] = _TestCookieJar()
|
|
else:
|
|
self.cookie_jar = None
|
|
|
|
self.allow_subdomain_redirects = allow_subdomain_redirects
|
|
|
|
def set_cookie(
|
|
self,
|
|
server_name: str,
|
|
key: str,
|
|
value: str = "",
|
|
max_age: t.Optional[t.Union[timedelta, int]] = None,
|
|
expires: t.Optional[t.Union[str, datetime, int, float]] = None,
|
|
path: str = "/",
|
|
domain: t.Optional[str] = None,
|
|
secure: bool = False,
|
|
httponly: bool = False,
|
|
samesite: t.Optional[str] = None,
|
|
charset: str = "utf-8",
|
|
) -> None:
|
|
"""Sets a cookie in the client's cookie jar. The server name
|
|
is required and has to match the one that is also passed to
|
|
the open call.
|
|
"""
|
|
assert self.cookie_jar is not None, "cookies disabled"
|
|
header = dump_cookie(
|
|
key,
|
|
value,
|
|
max_age,
|
|
expires,
|
|
path,
|
|
domain,
|
|
secure,
|
|
httponly,
|
|
charset,
|
|
samesite=samesite,
|
|
)
|
|
environ = create_environ(path, base_url=f"http://{server_name}")
|
|
headers = [("Set-Cookie", header)]
|
|
self.cookie_jar.extract_wsgi(environ, headers)
|
|
|
|
def delete_cookie(
|
|
self,
|
|
server_name: str,
|
|
key: str,
|
|
path: str = "/",
|
|
domain: t.Optional[str] = None,
|
|
secure: bool = False,
|
|
httponly: bool = False,
|
|
samesite: t.Optional[str] = None,
|
|
) -> None:
|
|
"""Deletes a cookie in the test client."""
|
|
self.set_cookie(
|
|
server_name,
|
|
key,
|
|
expires=0,
|
|
max_age=0,
|
|
path=path,
|
|
domain=domain,
|
|
secure=secure,
|
|
httponly=httponly,
|
|
samesite=samesite,
|
|
)
|
|
|
|
def run_wsgi_app(
|
|
self, environ: "WSGIEnvironment", buffered: bool = False
|
|
) -> t.Tuple[t.Iterable[bytes], str, Headers]:
|
|
"""Runs the wrapped WSGI app with the given environment.
|
|
|
|
:meta private:
|
|
"""
|
|
if self.cookie_jar is not None:
|
|
self.cookie_jar.inject_wsgi(environ)
|
|
|
|
rv = run_wsgi_app(self.application, environ, buffered=buffered)
|
|
|
|
if self.cookie_jar is not None:
|
|
self.cookie_jar.extract_wsgi(environ, rv[2])
|
|
|
|
return rv
|
|
|
|
def resolve_redirect(
|
|
self, response: "TestResponse", buffered: bool = False
|
|
) -> "TestResponse":
|
|
"""Perform a new request to the location given by the redirect
|
|
response to the previous request.
|
|
|
|
:meta private:
|
|
"""
|
|
scheme, netloc, path, qs, anchor = url_parse(response.location)
|
|
builder = EnvironBuilder.from_environ(
|
|
response.request.environ, path=path, query_string=qs
|
|
)
|
|
|
|
to_name_parts = netloc.split(":", 1)[0].split(".")
|
|
from_name_parts = builder.server_name.split(".")
|
|
|
|
if to_name_parts != [""]:
|
|
# The new location has a host, use it for the base URL.
|
|
builder.url_scheme = scheme
|
|
builder.host = netloc
|
|
else:
|
|
# A local redirect with autocorrect_location_header=False
|
|
# doesn't have a host, so use the request's host.
|
|
to_name_parts = from_name_parts
|
|
|
|
# Explain why a redirect to a different server name won't be followed.
|
|
if to_name_parts != from_name_parts:
|
|
if to_name_parts[-len(from_name_parts) :] == from_name_parts:
|
|
if not self.allow_subdomain_redirects:
|
|
raise RuntimeError("Following subdomain redirects is not enabled.")
|
|
else:
|
|
raise RuntimeError("Following external redirects is not supported.")
|
|
|
|
path_parts = path.split("/")
|
|
root_parts = builder.script_root.split("/")
|
|
|
|
if path_parts[: len(root_parts)] == root_parts:
|
|
# Strip the script root from the path.
|
|
builder.path = path[len(builder.script_root) :]
|
|
else:
|
|
# The new location is not under the script root, so use the
|
|
# whole path and clear the previous root.
|
|
builder.path = path
|
|
builder.script_root = ""
|
|
|
|
# Only 307 and 308 preserve all of the original request.
|
|
if response.status_code not in {307, 308}:
|
|
# HEAD is preserved, everything else becomes GET.
|
|
if builder.method != "HEAD":
|
|
builder.method = "GET"
|
|
|
|
# Clear the body and the headers that describe it.
|
|
|
|
if builder.input_stream is not None:
|
|
builder.input_stream.close()
|
|
builder.input_stream = None
|
|
|
|
builder.content_type = None
|
|
builder.content_length = None
|
|
builder.headers.pop("Transfer-Encoding", None)
|
|
|
|
return self.open(builder, buffered=buffered)
|
|
|
|
def open(
|
|
self,
|
|
*args: t.Any,
|
|
buffered: bool = False,
|
|
follow_redirects: bool = False,
|
|
**kwargs: t.Any,
|
|
) -> "TestResponse":
|
|
"""Generate an environ dict from the given arguments, make a
|
|
request to the application using it, and return the response.
|
|
|
|
:param args: Passed to :class:`EnvironBuilder` to create the
|
|
environ for the request. If a single arg is passed, it can
|
|
be an existing :class:`EnvironBuilder` or an environ dict.
|
|
:param buffered: Convert the iterator returned by the app into
|
|
a list. If the iterator has a ``close()`` method, it is
|
|
called automatically.
|
|
:param follow_redirects: Make additional requests to follow HTTP
|
|
redirects until a non-redirect status is returned.
|
|
:attr:`TestResponse.history` lists the intermediate
|
|
responses.
|
|
|
|
.. versionchanged:: 2.1
|
|
Removed the ``as_tuple`` parameter.
|
|
|
|
.. versionchanged:: 2.0
|
|
``as_tuple`` is deprecated and will be removed in Werkzeug
|
|
2.1. Use :attr:`TestResponse.request` and
|
|
``request.environ`` instead.
|
|
|
|
.. versionchanged:: 2.0
|
|
The request input stream is closed when calling
|
|
``response.close()``. Input streams for redirects are
|
|
automatically closed.
|
|
|
|
.. versionchanged:: 0.5
|
|
If a dict is provided as file in the dict for the ``data``
|
|
parameter the content type has to be called ``content_type``
|
|
instead of ``mimetype``. This change was made for
|
|
consistency with :class:`werkzeug.FileWrapper`.
|
|
|
|
.. versionchanged:: 0.5
|
|
Added the ``follow_redirects`` parameter.
|
|
"""
|
|
request: t.Optional["Request"] = None
|
|
|
|
if not kwargs and len(args) == 1:
|
|
arg = args[0]
|
|
|
|
if isinstance(arg, EnvironBuilder):
|
|
request = arg.get_request()
|
|
elif isinstance(arg, dict):
|
|
request = EnvironBuilder.from_environ(arg).get_request()
|
|
elif isinstance(arg, Request):
|
|
request = arg
|
|
|
|
if request is None:
|
|
builder = EnvironBuilder(*args, **kwargs)
|
|
|
|
try:
|
|
request = builder.get_request()
|
|
finally:
|
|
builder.close()
|
|
|
|
response = self.run_wsgi_app(request.environ, buffered=buffered)
|
|
response = self.response_wrapper(*response, request=request)
|
|
|
|
redirects = set()
|
|
history: t.List["TestResponse"] = []
|
|
|
|
if not follow_redirects:
|
|
return response
|
|
|
|
while response.status_code in {
|
|
301,
|
|
302,
|
|
303,
|
|
305,
|
|
307,
|
|
308,
|
|
}:
|
|
# Exhaust intermediate response bodies to ensure middleware
|
|
# that returns an iterator runs any cleanup code.
|
|
if not buffered:
|
|
response.make_sequence()
|
|
response.close()
|
|
|
|
new_redirect_entry = (response.location, response.status_code)
|
|
|
|
if new_redirect_entry in redirects:
|
|
raise ClientRedirectError(
|
|
f"Loop detected: A {response.status_code} redirect"
|
|
f" to {response.location} was already made."
|
|
)
|
|
|
|
redirects.add(new_redirect_entry)
|
|
response.history = tuple(history)
|
|
history.append(response)
|
|
response = self.resolve_redirect(response, buffered=buffered)
|
|
else:
|
|
# This is the final request after redirects.
|
|
response.history = tuple(history)
|
|
# Close the input stream when closing the response, in case
|
|
# the input is an open temporary file.
|
|
response.call_on_close(request.input_stream.close)
|
|
return response
|
|
|
|
def get(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``GET``."""
|
|
kw["method"] = "GET"
|
|
return self.open(*args, **kw)
|
|
|
|
def post(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``POST``."""
|
|
kw["method"] = "POST"
|
|
return self.open(*args, **kw)
|
|
|
|
def put(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``PUT``."""
|
|
kw["method"] = "PUT"
|
|
return self.open(*args, **kw)
|
|
|
|
def delete(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``DELETE``."""
|
|
kw["method"] = "DELETE"
|
|
return self.open(*args, **kw)
|
|
|
|
def patch(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``PATCH``."""
|
|
kw["method"] = "PATCH"
|
|
return self.open(*args, **kw)
|
|
|
|
def options(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``OPTIONS``."""
|
|
kw["method"] = "OPTIONS"
|
|
return self.open(*args, **kw)
|
|
|
|
def head(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``HEAD``."""
|
|
kw["method"] = "HEAD"
|
|
return self.open(*args, **kw)
|
|
|
|
def trace(self, *args: t.Any, **kw: t.Any) -> "TestResponse":
|
|
"""Call :meth:`open` with ``method`` set to ``TRACE``."""
|
|
kw["method"] = "TRACE"
|
|
return self.open(*args, **kw)
|
|
|
|
def __repr__(self) -> str:
|
|
return f"<{type(self).__name__} {self.application!r}>"
|
|
|
|
|
|
def create_environ(*args: t.Any, **kwargs: t.Any) -> "WSGIEnvironment":
|
|
"""Create a new WSGI environ dict based on the values passed. The first
|
|
parameter should be the path of the request which defaults to '/'. The
|
|
second one can either be an absolute path (in that case the host is
|
|
localhost:80) or a full path to the request with scheme, netloc port and
|
|
the path to the script.
|
|
|
|
This accepts the same arguments as the :class:`EnvironBuilder`
|
|
constructor.
|
|
|
|
.. versionchanged:: 0.5
|
|
This function is now a thin wrapper over :class:`EnvironBuilder` which
|
|
was added in 0.5. The `headers`, `environ_base`, `environ_overrides`
|
|
and `charset` parameters were added.
|
|
"""
|
|
builder = EnvironBuilder(*args, **kwargs)
|
|
|
|
try:
|
|
return builder.get_environ()
|
|
finally:
|
|
builder.close()
|
|
|
|
|
|
def run_wsgi_app(
|
|
app: "WSGIApplication", environ: "WSGIEnvironment", buffered: bool = False
|
|
) -> t.Tuple[t.Iterable[bytes], str, Headers]:
|
|
"""Return a tuple in the form (app_iter, status, headers) of the
|
|
application output. This works best if you pass it an application that
|
|
returns an iterator all the time.
|
|
|
|
Sometimes applications may use the `write()` callable returned
|
|
by the `start_response` function. This tries to resolve such edge
|
|
cases automatically. But if you don't get the expected output you
|
|
should set `buffered` to `True` which enforces buffering.
|
|
|
|
If passed an invalid WSGI application the behavior of this function is
|
|
undefined. Never pass non-conforming WSGI applications to this function.
|
|
|
|
:param app: the application to execute.
|
|
:param buffered: set to `True` to enforce buffering.
|
|
:return: tuple in the form ``(app_iter, status, headers)``
|
|
"""
|
|
# Copy environ to ensure any mutations by the app (ProxyFix, for
|
|
# example) don't affect subsequent requests (such as redirects).
|
|
environ = _get_environ(environ).copy()
|
|
status: str
|
|
response: t.Optional[t.Tuple[str, t.List[t.Tuple[str, str]]]] = None
|
|
buffer: t.List[bytes] = []
|
|
|
|
def start_response(status, headers, exc_info=None): # type: ignore
|
|
nonlocal response
|
|
|
|
if exc_info:
|
|
try:
|
|
raise exc_info[1].with_traceback(exc_info[2])
|
|
finally:
|
|
exc_info = None
|
|
|
|
response = (status, headers)
|
|
return buffer.append
|
|
|
|
app_rv = app(environ, start_response)
|
|
close_func = getattr(app_rv, "close", None)
|
|
app_iter: t.Iterable[bytes] = iter(app_rv)
|
|
|
|
# when buffering we emit the close call early and convert the
|
|
# application iterator into a regular list
|
|
if buffered:
|
|
try:
|
|
app_iter = list(app_iter)
|
|
finally:
|
|
if close_func is not None:
|
|
close_func()
|
|
|
|
# otherwise we iterate the application iter until we have a response, chain
|
|
# the already received data with the already collected data and wrap it in
|
|
# a new `ClosingIterator` if we need to restore a `close` callable from the
|
|
# original return value.
|
|
else:
|
|
for item in app_iter:
|
|
buffer.append(item)
|
|
|
|
if response is not None:
|
|
break
|
|
|
|
if buffer:
|
|
app_iter = chain(buffer, app_iter)
|
|
|
|
if close_func is not None and app_iter is not app_rv:
|
|
app_iter = ClosingIterator(app_iter, close_func)
|
|
|
|
status, headers = response # type: ignore
|
|
return app_iter, status, Headers(headers)
|
|
|
|
|
|
class TestResponse(Response):
|
|
""":class:`~werkzeug.wrappers.Response` subclass that provides extra
|
|
information about requests made with the test :class:`Client`.
|
|
|
|
Test client requests will always return an instance of this class.
|
|
If a custom response class is passed to the client, it is
|
|
subclassed along with this to support test information.
|
|
|
|
If the test request included large files, or if the application is
|
|
serving a file, call :meth:`close` to close any open files and
|
|
prevent Python showing a ``ResourceWarning``.
|
|
|
|
.. versionchanged:: 2.2
|
|
Set the ``default_mimetype`` to None to prevent a mimetype being
|
|
assumed if missing.
|
|
|
|
.. versionchanged:: 2.1
|
|
Removed deprecated behavior for treating the response instance
|
|
as a tuple.
|
|
|
|
.. versionadded:: 2.0
|
|
Test client methods always return instances of this class.
|
|
"""
|
|
|
|
default_mimetype = None
|
|
# Don't assume a mimetype, instead use whatever the response provides
|
|
|
|
request: Request
|
|
"""A request object with the environ used to make the request that
|
|
resulted in this response.
|
|
"""
|
|
|
|
history: t.Tuple["TestResponse", ...]
|
|
"""A list of intermediate responses. Populated when the test request
|
|
is made with ``follow_redirects`` enabled.
|
|
"""
|
|
|
|
# Tell Pytest to ignore this, it's not a test class.
|
|
__test__ = False
|
|
|
|
def __init__(
|
|
self,
|
|
response: t.Iterable[bytes],
|
|
status: str,
|
|
headers: Headers,
|
|
request: Request,
|
|
history: t.Tuple["TestResponse"] = (), # type: ignore
|
|
**kwargs: t.Any,
|
|
) -> None:
|
|
super().__init__(response, status, headers, **kwargs)
|
|
self.request = request
|
|
self.history = history
|
|
self._compat_tuple = response, status, headers
|
|
|
|
@cached_property
|
|
def text(self) -> str:
|
|
"""The response data as text. A shortcut for
|
|
``response.get_data(as_text=True)``.
|
|
|
|
.. versionadded:: 2.1
|
|
"""
|
|
return self.get_data(as_text=True)
|