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897 lines
33 KiB
Python
897 lines
33 KiB
Python
# -*- coding: utf-8 -*-
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"""
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werkzeug.test
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~~~~~~~~~~~~~
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This module implements a client to WSGI applications for testing.
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:copyright: (c) 2014 by the Werkzeug Team, see AUTHORS for more details.
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:license: BSD, see LICENSE for more details.
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"""
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import sys
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import mimetypes
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from time import time
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from random import random
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from itertools import chain
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from tempfile import TemporaryFile
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from io import BytesIO
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try:
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from urllib2 import Request as U2Request
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except ImportError:
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from urllib.request import Request as U2Request
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try:
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from http.cookiejar import CookieJar
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except ImportError: # Py2
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from cookielib import CookieJar
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from werkzeug._compat import iterlists, iteritems, itervalues, to_bytes, \
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string_types, text_type, reraise, wsgi_encoding_dance, \
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make_literal_wrapper
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from werkzeug._internal import _empty_stream, _get_environ
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from werkzeug.wrappers import BaseRequest
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from werkzeug.urls import url_encode, url_fix, iri_to_uri, url_unquote, \
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url_unparse, url_parse
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from werkzeug.wsgi import get_host, get_current_url, ClosingIterator
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from werkzeug.utils import dump_cookie
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from werkzeug.datastructures import FileMultiDict, MultiDict, \
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CombinedMultiDict, Headers, FileStorage
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def stream_encode_multipart(values, use_tempfile=True, threshold=1024 * 500,
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boundary=None, charset='utf-8'):
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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 = '---------------WerkzeugFormPart_%s%s' % (time(), random())
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_closure = [BytesIO(), 0, False]
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if use_tempfile:
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def write_binary(string):
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stream, total_length, on_disk = _closure
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if on_disk:
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stream.write(string)
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else:
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length = len(string)
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if length + _closure[1] <= threshold:
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stream.write(string)
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else:
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new_stream = TemporaryFile('wb+')
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new_stream.write(stream.getvalue())
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new_stream.write(string)
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_closure[0] = new_stream
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_closure[2] = True
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_closure[1] = total_length + length
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else:
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write_binary = _closure[0].write
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def write(string):
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write_binary(string.encode(charset))
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if not isinstance(values, MultiDict):
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values = MultiDict(values)
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for key, values in iterlists(values):
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for value in values:
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write('--%s\r\nContent-Disposition: form-data; name="%s"' %
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(boundary, key))
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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',
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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 = filename and \
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mimetypes.guess_type(filename)[0] or \
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'application/octet-stream'
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if filename is not None:
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write('; filename="%s"\r\n' % filename)
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else:
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write('\r\n')
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write('Content-Type: %s\r\n\r\n' % content_type)
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while 1:
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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(chunk)
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else:
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if not isinstance(value, string_types):
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value = str(value)
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value = to_bytes(value, charset)
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write('\r\n\r\n')
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write_binary(value)
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write('\r\n')
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write('--%s--\r\n' % boundary)
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length = int(_closure[0].tell())
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_closure[0].seek(0)
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return _closure[0], length, boundary
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def encode_multipart(values, boundary=None, charset='utf-8'):
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"""Like `stream_encode_multipart` but returns a tuple in the form
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(``boundary``, ``data``) where data is a bytestring.
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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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return boundary, stream.read()
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def File(fd, filename=None, mimetype=None):
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"""Backwards compat."""
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from warnings import warn
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warn(DeprecationWarning('werkzeug.test.File is deprecated, use the '
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'EnvironBuilder or FileStorage instead'))
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return FileStorage(fd, filename=filename, content_type=mimetype)
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class _TestCookieHeaders(object):
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"""A headers adapter for cookielib
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"""
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def __init__(self, headers):
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self.headers = headers
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def getheaders(self, name):
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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(self, name, default=None):
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rv = []
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for k, v in self.headers:
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if k.lower() == name.lower():
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rv.append(v)
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return rv or default or []
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class _TestCookieResponse(object):
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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):
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self.headers = _TestCookieHeaders(headers)
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def info(self):
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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):
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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 = []
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for cookie in self:
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cvals.append('%s=%s' % (cookie.name, cookie.value))
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if cvals:
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environ['HTTP_COOKIE'] = '; '.join(cvals)
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def extract_wsgi(self, environ, headers):
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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),
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U2Request(get_current_url(environ)),
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)
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def _iter_data(data):
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"""Iterates over a dict or multidict yielding all keys and values.
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This is used to iterate over the data passed to the
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:class:`EnvironBuilder`.
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"""
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if isinstance(data, MultiDict):
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for key, values in iterlists(data):
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for value in values:
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yield key, value
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else:
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for key, values in iteritems(data):
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if isinstance(values, list):
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for value in values:
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yield key, value
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else:
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yield key, values
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class EnvironBuilder(object):
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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:`BaseResponse.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`: If it's a string it is converted into a :attr:`input_stream`,
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the :attr:`content_length` is set and you have to provide a
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:attr:`content_type`.
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- a `dict`: If it's a dict the keys have to be strings and the values
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any of the 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 tuple items as positional arguments.
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.. versionadded:: 0.6
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`path` and `base_url` can now be unicode strings that are encoded using
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the :func:`iri_to_uri` function.
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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. See explanation above.
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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 unicode data.
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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 for :meth:`get_request`
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request_class = BaseRequest
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def __init__(self, path='/', base_url=None, query_string=None,
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method='GET', input_stream=None, content_type=None,
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content_length=None, errors_stream=None, multithread=False,
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multiprocess=False, run_once=False, headers=None, data=None,
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environ_base=None, environ_overrides=None, charset='utf-8'):
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path_s = make_literal_wrapper(path)
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if query_string is None and path_s('?') in path:
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path, query_string = path.split(path_s('?'), 1)
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self.charset = charset
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self.path = iri_to_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
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if isinstance(query_string, (bytes, text_type)):
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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()
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elif not isinstance(headers, Headers):
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headers = Headers(headers)
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self.headers = headers
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if content_type is not None:
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self.content_type = content_type
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if errors_stream is None:
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errors_stream = sys.stderr
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self.errors_stream = errors_stream
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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
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self.input_stream = input_stream
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self.content_length = content_length
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self.closed = False
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if data:
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if input_stream is not None:
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raise TypeError('can\'t provide input stream and data')
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if isinstance(data, text_type):
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data = data.encode(self.charset)
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if isinstance(data, bytes):
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self.input_stream = BytesIO(data)
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if self.content_length is None:
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self.content_length = len(data)
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else:
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for key, value in _iter_data(data):
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if isinstance(value, (tuple, dict)) or \
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hasattr(value, 'read'):
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self._add_file_from_data(key, value)
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else:
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self.form.setlistdefault(key).append(value)
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def _add_file_from_data(self, key, value):
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"""Called in the EnvironBuilder to add files from the data dict."""
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if isinstance(value, tuple):
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self.files.add_file(key, *value)
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elif isinstance(value, dict):
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from warnings import warn
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warn(DeprecationWarning('it\'s no longer possible to pass dicts '
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'as `data`. Use tuples or FileStorage '
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'objects instead'), stacklevel=2)
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value = dict(value)
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mimetype = value.pop('mimetype', None)
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if mimetype is not None:
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value['content_type'] = mimetype
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self.files.add_file(key, **value)
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else:
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self.files.add_file(key, value)
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def _get_base_url(self):
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return url_unparse((self.url_scheme, self.host,
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self.script_root, '', '')).rstrip('/') + '/'
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def _set_base_url(self, value):
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if value is None:
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scheme = 'http'
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netloc = 'localhost'
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script_root = ''
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else:
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scheme, netloc, script_root, qs, anchor = url_parse(value)
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if qs or anchor:
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raise ValueError('base url must not contain a query string '
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'or fragment')
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self.script_root = script_root.rstrip('/')
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self.host = netloc
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self.url_scheme = scheme
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base_url = property(_get_base_url, _set_base_url, doc='''
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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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del _get_base_url, _set_base_url
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def _get_content_type(self):
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ct = self.headers.get('Content-Type')
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if ct is None and not self._input_stream:
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if self._files:
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return 'multipart/form-data'
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elif self._form:
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return 'application/x-www-form-urlencoded'
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return None
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return ct
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def _set_content_type(self, value):
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if value is None:
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self.headers.pop('Content-Type', None)
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else:
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self.headers['Content-Type'] = value
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content_type = property(_get_content_type, _set_content_type, doc='''
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The content type for the request. Reflected from and to the
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:attr:`headers`. Do not set if you set :attr:`files` or
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:attr:`form` for auto detection.''')
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del _get_content_type, _set_content_type
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def _get_content_length(self):
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return self.headers.get('Content-Length', type=int)
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def _set_content_length(self, value):
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if value is None:
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self.headers.pop('Content-Length', None)
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else:
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self.headers['Content-Length'] = str(value)
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content_length = property(_get_content_length, _set_content_length, doc='''
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The content length as integer. Reflected from and to the
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:attr:`headers`. Do not set if you set :attr:`files` or
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:attr:`form` for auto detection.''')
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del _get_content_length, _set_content_length
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def form_property(name, storage, doc):
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key = '_' + name
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def getter(self):
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if self._input_stream is not None:
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raise AttributeError('an input stream is defined')
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rv = getattr(self, key)
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if rv is None:
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rv = storage()
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setattr(self, key, rv)
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return rv
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def setter(self, value):
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self._input_stream = None
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setattr(self, key, value)
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return property(getter, setter, doc)
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form = form_property('form', MultiDict, doc='''
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A :class:`MultiDict` of form values.''')
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files = form_property('files', FileMultiDict, doc='''
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A :class:`FileMultiDict` of uploaded files. You can use the
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:meth:`~FileMultiDict.add_file` method to add new files to the
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dict.''')
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del form_property
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def _get_input_stream(self):
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return self._input_stream
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def _set_input_stream(self, value):
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self._input_stream = value
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self._form = self._files = None
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input_stream = property(_get_input_stream, _set_input_stream, doc='''
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An optional input stream. If you set this it will clear
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:attr:`form` and :attr:`files`.''')
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del _get_input_stream, _set_input_stream
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def _get_query_string(self):
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if self._query_string is None:
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if self._args is not None:
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return url_encode(self._args, charset=self.charset)
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return ''
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return self._query_string
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def _set_query_string(self, value):
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self._query_string = value
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self._args = None
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query_string = property(_get_query_string, _set_query_string, doc='''
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The query string. If you set this to a string :attr:`args` will
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no longer be available.''')
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del _get_query_string, _set_query_string
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def _get_args(self):
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if self._query_string is not None:
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raise AttributeError('a query string is defined')
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if self._args is None:
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self._args = MultiDict()
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return self._args
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def _set_args(self, value):
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self._query_string = None
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self._args = value
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args = property(_get_args, _set_args, doc='''
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The URL arguments as :class:`MultiDict`.''')
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del _get_args, _set_args
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@property
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def server_name(self):
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"""The server name (read-only, use :attr:`host` to set)"""
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return self.host.split(':', 1)[0]
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@property
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def server_port(self):
|
|
"""The server port as integer (read-only, use :attr:`host` to set)"""
|
|
pieces = self.host.split(':', 1)
|
|
if len(pieces) == 2 and pieces[1].isdigit():
|
|
return int(pieces[1])
|
|
elif self.url_scheme == 'https':
|
|
return 443
|
|
return 80
|
|
|
|
def __del__(self):
|
|
try:
|
|
self.close()
|
|
except Exception:
|
|
pass
|
|
|
|
def close(self):
|
|
"""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 = itervalues(self.files)
|
|
except AttributeError:
|
|
files = ()
|
|
for f in files:
|
|
try:
|
|
f.close()
|
|
except Exception:
|
|
pass
|
|
self.closed = True
|
|
|
|
def get_environ(self):
|
|
"""Return the built environ."""
|
|
input_stream = self.input_stream
|
|
content_length = self.content_length
|
|
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 content_type == 'multipart/form-data':
|
|
values = CombinedMultiDict([self.form, self.files])
|
|
input_stream, content_length, boundary = \
|
|
stream_encode_multipart(values, charset=self.charset)
|
|
content_type += '; boundary="%s"' % boundary
|
|
elif content_type == 'application/x-www-form-urlencoded':
|
|
# XXX: py2v3 review
|
|
values = url_encode(self.form, charset=self.charset)
|
|
values = values.encode('ascii')
|
|
content_length = len(values)
|
|
input_stream = BytesIO(values)
|
|
else:
|
|
input_stream = _empty_stream
|
|
|
|
result = {}
|
|
if self.environ_base:
|
|
result.update(self.environ_base)
|
|
|
|
def _path_encode(x):
|
|
return wsgi_encoding_dance(url_unquote(x, self.charset), self.charset)
|
|
|
|
qs = wsgi_encoding_dance(self.query_string)
|
|
|
|
result.update({
|
|
'REQUEST_METHOD': self.method,
|
|
'SCRIPT_NAME': _path_encode(self.script_root),
|
|
'PATH_INFO': _path_encode(self.path),
|
|
'QUERY_STRING': qs,
|
|
'SERVER_NAME': self.server_name,
|
|
'SERVER_PORT': str(self.server_port),
|
|
'HTTP_HOST': self.host,
|
|
'SERVER_PROTOCOL': self.server_protocol,
|
|
'CONTENT_TYPE': content_type or '',
|
|
'CONTENT_LENGTH': str(content_length or '0'),
|
|
'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
|
|
})
|
|
for key, value in self.headers.to_wsgi_list():
|
|
result['HTTP_%s' % key.upper().replace('-', '_')] = value
|
|
if self.environ_overrides:
|
|
result.update(self.environ_overrides)
|
|
return result
|
|
|
|
def get_request(self, cls=None):
|
|
"""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(object):
|
|
|
|
"""This class allows to send requests to a wrapped application.
|
|
|
|
The response wrapper can be a class or factory function that takes
|
|
three arguments: app_iter, status and headers. The default response
|
|
wrapper just returns a tuple.
|
|
|
|
Example::
|
|
|
|
class ClientResponse(BaseResponse):
|
|
...
|
|
|
|
client = Client(MyApplication(), response_wrapper=ClientResponse)
|
|
|
|
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.
|
|
|
|
.. versionadded:: 0.5
|
|
`use_cookies` is new in this version. Older versions did not provide
|
|
builtin cookie support.
|
|
"""
|
|
|
|
def __init__(self, application, response_wrapper=None, use_cookies=True,
|
|
allow_subdomain_redirects=False):
|
|
self.application = application
|
|
self.response_wrapper = response_wrapper
|
|
if use_cookies:
|
|
self.cookie_jar = _TestCookieJar()
|
|
else:
|
|
self.cookie_jar = None
|
|
self.allow_subdomain_redirects = allow_subdomain_redirects
|
|
|
|
def set_cookie(self, server_name, key, value='', max_age=None,
|
|
expires=None, path='/', domain=None, secure=None,
|
|
httponly=False, charset='utf-8'):
|
|
"""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)
|
|
environ = create_environ(path, base_url='http://' + server_name)
|
|
headers = [('Set-Cookie', header)]
|
|
self.cookie_jar.extract_wsgi(environ, headers)
|
|
|
|
def delete_cookie(self, server_name, key, path='/', domain=None):
|
|
"""Deletes a cookie in the test client."""
|
|
self.set_cookie(server_name, key, expires=0, max_age=0,
|
|
path=path, domain=domain)
|
|
|
|
def run_wsgi_app(self, environ, buffered=False):
|
|
"""Runs the wrapped WSGI app with the given environment."""
|
|
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, new_location, environ, buffered=False):
|
|
"""Resolves a single redirect and triggers the request again
|
|
directly on this redirect client.
|
|
"""
|
|
scheme, netloc, script_root, qs, anchor = url_parse(new_location)
|
|
base_url = url_unparse((scheme, netloc, '', '', '')).rstrip('/') + '/'
|
|
|
|
cur_server_name = netloc.split(':', 1)[0].split('.')
|
|
real_server_name = get_host(environ).rsplit(':', 1)[0].split('.')
|
|
|
|
if self.allow_subdomain_redirects:
|
|
allowed = cur_server_name[-len(real_server_name):] == real_server_name
|
|
else:
|
|
allowed = cur_server_name == real_server_name
|
|
|
|
if not allowed:
|
|
raise RuntimeError('%r does not support redirect to '
|
|
'external targets' % self.__class__)
|
|
|
|
status_code = int(response[1].split(None, 1)[0])
|
|
if status_code == 307:
|
|
method = environ['REQUEST_METHOD']
|
|
else:
|
|
method = 'GET'
|
|
|
|
# For redirect handling we temporarily disable the response
|
|
# wrapper. This is not threadsafe but not a real concern
|
|
# since the test client must not be shared anyways.
|
|
old_response_wrapper = self.response_wrapper
|
|
self.response_wrapper = None
|
|
try:
|
|
return self.open(path=script_root, base_url=base_url,
|
|
query_string=qs, as_tuple=True,
|
|
buffered=buffered, method=method)
|
|
finally:
|
|
self.response_wrapper = old_response_wrapper
|
|
|
|
def open(self, *args, **kwargs):
|
|
"""Takes the same arguments as the :class:`EnvironBuilder` class with
|
|
some additions: You can provide a :class:`EnvironBuilder` or a WSGI
|
|
environment as only argument instead of the :class:`EnvironBuilder`
|
|
arguments and two optional keyword arguments (`as_tuple`, `buffered`)
|
|
that change the type of the return value or the way the application is
|
|
executed.
|
|
|
|
.. 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` now instead of
|
|
`mimetype`. This change was made for consistency with
|
|
:class:`werkzeug.FileWrapper`.
|
|
|
|
The `follow_redirects` parameter was added to :func:`open`.
|
|
|
|
Additional parameters:
|
|
|
|
:param as_tuple: Returns a tuple in the form ``(environ, result)``
|
|
:param buffered: Set this to True to buffer the application run.
|
|
This will automatically close the application for
|
|
you as well.
|
|
:param follow_redirects: Set this to True if the `Client` should
|
|
follow HTTP redirects.
|
|
"""
|
|
as_tuple = kwargs.pop('as_tuple', False)
|
|
buffered = kwargs.pop('buffered', False)
|
|
follow_redirects = kwargs.pop('follow_redirects', False)
|
|
environ = None
|
|
if not kwargs and len(args) == 1:
|
|
if isinstance(args[0], EnvironBuilder):
|
|
environ = args[0].get_environ()
|
|
elif isinstance(args[0], dict):
|
|
environ = args[0]
|
|
if environ is None:
|
|
builder = EnvironBuilder(*args, **kwargs)
|
|
try:
|
|
environ = builder.get_environ()
|
|
finally:
|
|
builder.close()
|
|
|
|
response = self.run_wsgi_app(environ, buffered=buffered)
|
|
|
|
# handle redirects
|
|
redirect_chain = []
|
|
while 1:
|
|
status_code = int(response[1].split(None, 1)[0])
|
|
if status_code not in (301, 302, 303, 305, 307) \
|
|
or not follow_redirects:
|
|
break
|
|
new_location = response[2]['location']
|
|
new_redirect_entry = (new_location, status_code)
|
|
if new_redirect_entry in redirect_chain:
|
|
raise ClientRedirectError('loop detected')
|
|
redirect_chain.append(new_redirect_entry)
|
|
environ, response = self.resolve_redirect(response, new_location,
|
|
environ,
|
|
buffered=buffered)
|
|
|
|
if self.response_wrapper is not None:
|
|
response = self.response_wrapper(*response)
|
|
if as_tuple:
|
|
return environ, response
|
|
return response
|
|
|
|
def get(self, *args, **kw):
|
|
"""Like open but method is enforced to GET."""
|
|
kw['method'] = 'GET'
|
|
return self.open(*args, **kw)
|
|
|
|
def patch(self, *args, **kw):
|
|
"""Like open but method is enforced to PATCH."""
|
|
kw['method'] = 'PATCH'
|
|
return self.open(*args, **kw)
|
|
|
|
def post(self, *args, **kw):
|
|
"""Like open but method is enforced to POST."""
|
|
kw['method'] = 'POST'
|
|
return self.open(*args, **kw)
|
|
|
|
def head(self, *args, **kw):
|
|
"""Like open but method is enforced to HEAD."""
|
|
kw['method'] = 'HEAD'
|
|
return self.open(*args, **kw)
|
|
|
|
def put(self, *args, **kw):
|
|
"""Like open but method is enforced to PUT."""
|
|
kw['method'] = 'PUT'
|
|
return self.open(*args, **kw)
|
|
|
|
def delete(self, *args, **kw):
|
|
"""Like open but method is enforced to DELETE."""
|
|
kw['method'] = 'DELETE'
|
|
return self.open(*args, **kw)
|
|
|
|
def options(self, *args, **kw):
|
|
"""Like open but method is enforced to OPTIONS."""
|
|
kw['method'] = 'OPTIONS'
|
|
return self.open(*args, **kw)
|
|
|
|
def trace(self, *args, **kw):
|
|
"""Like open but method is enforced to TRACE."""
|
|
kw['method'] = 'TRACE'
|
|
return self.open(*args, **kw)
|
|
|
|
def __repr__(self):
|
|
return '<%s %r>' % (
|
|
self.__class__.__name__,
|
|
self.application
|
|
)
|
|
|
|
|
|
def create_environ(*args, **kwargs):
|
|
"""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, environ, buffered=False):
|
|
"""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)``
|
|
"""
|
|
environ = _get_environ(environ)
|
|
response = []
|
|
buffer = []
|
|
|
|
def start_response(status, headers, exc_info=None):
|
|
if exc_info is not None:
|
|
reraise(*exc_info)
|
|
response[:] = [status, headers]
|
|
return buffer.append
|
|
|
|
app_rv = app(environ, start_response)
|
|
close_func = getattr(app_rv, 'close', None)
|
|
app_iter = 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:
|
|
while not response:
|
|
buffer.append(next(app_iter))
|
|
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)
|
|
|
|
return app_iter, response[0], Headers(response[1])
|