522 lines
19 KiB
Python
522 lines
19 KiB
Python
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from tornado.httputil import (
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url_concat,
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parse_multipart_form_data,
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HTTPHeaders,
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format_timestamp,
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HTTPServerRequest,
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parse_request_start_line,
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parse_cookie,
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qs_to_qsl,
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HTTPInputError,
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HTTPFile,
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)
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from tornado.escape import utf8, native_str
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from tornado.log import gen_log
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from tornado.testing import ExpectLog
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import copy
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import datetime
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import logging
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import pickle
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import time
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import urllib.parse
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import unittest
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from typing import Tuple, Dict, List
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def form_data_args() -> Tuple[Dict[str, List[bytes]], Dict[str, List[HTTPFile]]]:
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"""Return two empty dicts suitable for use with parse_multipart_form_data.
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mypy insists on type annotations for dict literals, so this lets us avoid
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the verbose types throughout this test.
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"""
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return {}, {}
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class TestUrlConcat(unittest.TestCase):
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def test_url_concat_no_query_params(self):
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url = url_concat("https://localhost/path", [("y", "y"), ("z", "z")])
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self.assertEqual(url, "https://localhost/path?y=y&z=z")
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def test_url_concat_encode_args(self):
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url = url_concat("https://localhost/path", [("y", "/y"), ("z", "z")])
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self.assertEqual(url, "https://localhost/path?y=%2Fy&z=z")
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def test_url_concat_trailing_q(self):
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url = url_concat("https://localhost/path?", [("y", "y"), ("z", "z")])
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self.assertEqual(url, "https://localhost/path?y=y&z=z")
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def test_url_concat_q_with_no_trailing_amp(self):
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url = url_concat("https://localhost/path?x", [("y", "y"), ("z", "z")])
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self.assertEqual(url, "https://localhost/path?x=&y=y&z=z")
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def test_url_concat_trailing_amp(self):
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url = url_concat("https://localhost/path?x&", [("y", "y"), ("z", "z")])
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self.assertEqual(url, "https://localhost/path?x=&y=y&z=z")
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def test_url_concat_mult_params(self):
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url = url_concat("https://localhost/path?a=1&b=2", [("y", "y"), ("z", "z")])
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self.assertEqual(url, "https://localhost/path?a=1&b=2&y=y&z=z")
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def test_url_concat_no_params(self):
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url = url_concat("https://localhost/path?r=1&t=2", [])
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self.assertEqual(url, "https://localhost/path?r=1&t=2")
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def test_url_concat_none_params(self):
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url = url_concat("https://localhost/path?r=1&t=2", None)
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self.assertEqual(url, "https://localhost/path?r=1&t=2")
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def test_url_concat_with_frag(self):
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url = url_concat("https://localhost/path#tab", [("y", "y")])
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self.assertEqual(url, "https://localhost/path?y=y#tab")
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def test_url_concat_multi_same_params(self):
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url = url_concat("https://localhost/path", [("y", "y1"), ("y", "y2")])
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self.assertEqual(url, "https://localhost/path?y=y1&y=y2")
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def test_url_concat_multi_same_query_params(self):
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url = url_concat("https://localhost/path?r=1&r=2", [("y", "y")])
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self.assertEqual(url, "https://localhost/path?r=1&r=2&y=y")
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def test_url_concat_dict_params(self):
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url = url_concat("https://localhost/path", dict(y="y"))
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self.assertEqual(url, "https://localhost/path?y=y")
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class QsParseTest(unittest.TestCase):
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def test_parsing(self):
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qsstring = "a=1&b=2&a=3"
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qs = urllib.parse.parse_qs(qsstring)
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qsl = list(qs_to_qsl(qs))
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self.assertIn(("a", "1"), qsl)
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self.assertIn(("a", "3"), qsl)
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self.assertIn(("b", "2"), qsl)
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class MultipartFormDataTest(unittest.TestCase):
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def test_file_upload(self):
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data = b"""\
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--1234
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Content-Disposition: form-data; name="files"; filename="ab.txt"
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Foo
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--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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parse_multipart_form_data(b"1234", data, args, files)
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file = files["files"][0]
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self.assertEqual(file["filename"], "ab.txt")
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self.assertEqual(file["body"], b"Foo")
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def test_unquoted_names(self):
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# quotes are optional unless special characters are present
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data = b"""\
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--1234
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Content-Disposition: form-data; name=files; filename=ab.txt
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Foo
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--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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parse_multipart_form_data(b"1234", data, args, files)
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file = files["files"][0]
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self.assertEqual(file["filename"], "ab.txt")
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self.assertEqual(file["body"], b"Foo")
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def test_special_filenames(self):
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filenames = [
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"a;b.txt",
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'a"b.txt',
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'a";b.txt',
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'a;"b.txt',
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'a";";.txt',
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'a\\"b.txt',
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"a\\b.txt",
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]
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for filename in filenames:
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logging.debug("trying filename %r", filename)
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str_data = """\
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--1234
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Content-Disposition: form-data; name="files"; filename="%s"
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Foo
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--1234--""" % filename.replace(
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"\\", "\\\\"
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).replace(
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'"', '\\"'
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)
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data = utf8(str_data.replace("\n", "\r\n"))
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args, files = form_data_args()
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parse_multipart_form_data(b"1234", data, args, files)
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file = files["files"][0]
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self.assertEqual(file["filename"], filename)
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self.assertEqual(file["body"], b"Foo")
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def test_non_ascii_filename(self):
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data = b"""\
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--1234
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Content-Disposition: form-data; name="files"; filename="ab.txt"; filename*=UTF-8''%C3%A1b.txt
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Foo
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--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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parse_multipart_form_data(b"1234", data, args, files)
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file = files["files"][0]
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self.assertEqual(file["filename"], u"áb.txt")
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self.assertEqual(file["body"], b"Foo")
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def test_boundary_starts_and_ends_with_quotes(self):
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data = b"""\
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--1234
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Content-Disposition: form-data; name="files"; filename="ab.txt"
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Foo
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--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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parse_multipart_form_data(b'"1234"', data, args, files)
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file = files["files"][0]
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self.assertEqual(file["filename"], "ab.txt")
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self.assertEqual(file["body"], b"Foo")
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def test_missing_headers(self):
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data = b"""\
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--1234
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Foo
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--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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with ExpectLog(gen_log, "multipart/form-data missing headers"):
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parse_multipart_form_data(b"1234", data, args, files)
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self.assertEqual(files, {})
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def test_invalid_content_disposition(self):
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data = b"""\
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--1234
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Content-Disposition: invalid; name="files"; filename="ab.txt"
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Foo
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--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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with ExpectLog(gen_log, "Invalid multipart/form-data"):
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parse_multipart_form_data(b"1234", data, args, files)
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self.assertEqual(files, {})
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def test_line_does_not_end_with_correct_line_break(self):
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data = b"""\
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--1234
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Content-Disposition: form-data; name="files"; filename="ab.txt"
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Foo--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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with ExpectLog(gen_log, "Invalid multipart/form-data"):
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parse_multipart_form_data(b"1234", data, args, files)
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self.assertEqual(files, {})
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def test_content_disposition_header_without_name_parameter(self):
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data = b"""\
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--1234
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Content-Disposition: form-data; filename="ab.txt"
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Foo
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--1234--""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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with ExpectLog(gen_log, "multipart/form-data value missing name"):
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parse_multipart_form_data(b"1234", data, args, files)
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self.assertEqual(files, {})
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def test_data_after_final_boundary(self):
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# The spec requires that data after the final boundary be ignored.
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# http://www.w3.org/Protocols/rfc1341/7_2_Multipart.html
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# In practice, some libraries include an extra CRLF after the boundary.
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data = b"""\
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--1234
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Content-Disposition: form-data; name="files"; filename="ab.txt"
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Foo
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--1234--
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""".replace(
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b"\n", b"\r\n"
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)
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args, files = form_data_args()
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parse_multipart_form_data(b"1234", data, args, files)
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file = files["files"][0]
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self.assertEqual(file["filename"], "ab.txt")
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self.assertEqual(file["body"], b"Foo")
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class HTTPHeadersTest(unittest.TestCase):
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def test_multi_line(self):
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# Lines beginning with whitespace are appended to the previous line
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# with any leading whitespace replaced by a single space.
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# Note that while multi-line headers are a part of the HTTP spec,
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# their use is strongly discouraged.
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data = """\
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Foo: bar
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baz
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Asdf: qwer
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\tzxcv
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Foo: even
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more
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lines
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""".replace(
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"\n", "\r\n"
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)
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headers = HTTPHeaders.parse(data)
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self.assertEqual(headers["asdf"], "qwer zxcv")
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self.assertEqual(headers.get_list("asdf"), ["qwer zxcv"])
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self.assertEqual(headers["Foo"], "bar baz,even more lines")
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self.assertEqual(headers.get_list("foo"), ["bar baz", "even more lines"])
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self.assertEqual(
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sorted(list(headers.get_all())),
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[("Asdf", "qwer zxcv"), ("Foo", "bar baz"), ("Foo", "even more lines")],
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)
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def test_malformed_continuation(self):
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# If the first line starts with whitespace, it's a
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# continuation line with nothing to continue, so reject it
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# (with a proper error).
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data = " Foo: bar"
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self.assertRaises(HTTPInputError, HTTPHeaders.parse, data)
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def test_unicode_newlines(self):
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# Ensure that only \r\n is recognized as a header separator, and not
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# the other newline-like unicode characters.
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# Characters that are likely to be problematic can be found in
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# http://unicode.org/standard/reports/tr13/tr13-5.html
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# and cpython's unicodeobject.c (which defines the implementation
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# of unicode_type.splitlines(), and uses a different list than TR13).
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newlines = [
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u"\u001b", # VERTICAL TAB
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u"\u001c", # FILE SEPARATOR
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u"\u001d", # GROUP SEPARATOR
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u"\u001e", # RECORD SEPARATOR
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u"\u0085", # NEXT LINE
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u"\u2028", # LINE SEPARATOR
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u"\u2029", # PARAGRAPH SEPARATOR
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]
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for newline in newlines:
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# Try the utf8 and latin1 representations of each newline
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for encoding in ["utf8", "latin1"]:
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try:
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try:
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encoded = newline.encode(encoding)
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except UnicodeEncodeError:
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# Some chars cannot be represented in latin1
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continue
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data = b"Cookie: foo=" + encoded + b"bar"
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# parse() wants a native_str, so decode through latin1
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# in the same way the real parser does.
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headers = HTTPHeaders.parse(native_str(data.decode("latin1")))
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expected = [
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(
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"Cookie",
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"foo=" + native_str(encoded.decode("latin1")) + "bar",
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)
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]
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self.assertEqual(expected, list(headers.get_all()))
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except Exception:
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gen_log.warning("failed while trying %r in %s", newline, encoding)
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raise
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def test_optional_cr(self):
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# Both CRLF and LF should be accepted as separators. CR should not be
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# part of the data when followed by LF, but it is a normal char
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# otherwise (or should bare CR be an error?)
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headers = HTTPHeaders.parse("CRLF: crlf\r\nLF: lf\nCR: cr\rMore: more\r\n")
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self.assertEqual(
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sorted(headers.get_all()),
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[("Cr", "cr\rMore: more"), ("Crlf", "crlf"), ("Lf", "lf")],
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)
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def test_copy(self):
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all_pairs = [("A", "1"), ("A", "2"), ("B", "c")]
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h1 = HTTPHeaders()
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for k, v in all_pairs:
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h1.add(k, v)
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h2 = h1.copy()
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h3 = copy.copy(h1)
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h4 = copy.deepcopy(h1)
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|
for headers in [h1, h2, h3, h4]:
|
||
|
|
# All the copies are identical, no matter how they were
|
||
|
|
# constructed.
|
||
|
|
self.assertEqual(list(sorted(headers.get_all())), all_pairs)
|
||
|
|
for headers in [h2, h3, h4]:
|
||
|
|
# Neither the dict or its member lists are reused.
|
||
|
|
self.assertIsNot(headers, h1)
|
||
|
|
self.assertIsNot(headers.get_list("A"), h1.get_list("A"))
|
||
|
|
|
||
|
|
def test_pickle_roundtrip(self):
|
||
|
|
headers = HTTPHeaders()
|
||
|
|
headers.add("Set-Cookie", "a=b")
|
||
|
|
headers.add("Set-Cookie", "c=d")
|
||
|
|
headers.add("Content-Type", "text/html")
|
||
|
|
pickled = pickle.dumps(headers)
|
||
|
|
unpickled = pickle.loads(pickled)
|
||
|
|
self.assertEqual(sorted(headers.get_all()), sorted(unpickled.get_all()))
|
||
|
|
self.assertEqual(sorted(headers.items()), sorted(unpickled.items()))
|
||
|
|
|
||
|
|
def test_setdefault(self):
|
||
|
|
headers = HTTPHeaders()
|
||
|
|
headers["foo"] = "bar"
|
||
|
|
# If a value is present, setdefault returns it without changes.
|
||
|
|
self.assertEqual(headers.setdefault("foo", "baz"), "bar")
|
||
|
|
self.assertEqual(headers["foo"], "bar")
|
||
|
|
# If a value is not present, setdefault sets it for future use.
|
||
|
|
self.assertEqual(headers.setdefault("quux", "xyzzy"), "xyzzy")
|
||
|
|
self.assertEqual(headers["quux"], "xyzzy")
|
||
|
|
self.assertEqual(sorted(headers.get_all()), [("Foo", "bar"), ("Quux", "xyzzy")])
|
||
|
|
|
||
|
|
def test_string(self):
|
||
|
|
headers = HTTPHeaders()
|
||
|
|
headers.add("Foo", "1")
|
||
|
|
headers.add("Foo", "2")
|
||
|
|
headers.add("Foo", "3")
|
||
|
|
headers2 = HTTPHeaders.parse(str(headers))
|
||
|
|
self.assertEqual(headers, headers2)
|
||
|
|
|
||
|
|
|
||
|
|
class FormatTimestampTest(unittest.TestCase):
|
||
|
|
# Make sure that all the input types are supported.
|
||
|
|
TIMESTAMP = 1359312200.503611
|
||
|
|
EXPECTED = "Sun, 27 Jan 2013 18:43:20 GMT"
|
||
|
|
|
||
|
|
def check(self, value):
|
||
|
|
self.assertEqual(format_timestamp(value), self.EXPECTED)
|
||
|
|
|
||
|
|
def test_unix_time_float(self):
|
||
|
|
self.check(self.TIMESTAMP)
|
||
|
|
|
||
|
|
def test_unix_time_int(self):
|
||
|
|
self.check(int(self.TIMESTAMP))
|
||
|
|
|
||
|
|
def test_struct_time(self):
|
||
|
|
self.check(time.gmtime(self.TIMESTAMP))
|
||
|
|
|
||
|
|
def test_time_tuple(self):
|
||
|
|
tup = tuple(time.gmtime(self.TIMESTAMP))
|
||
|
|
self.assertEqual(9, len(tup))
|
||
|
|
self.check(tup)
|
||
|
|
|
||
|
|
def test_datetime(self):
|
||
|
|
self.check(datetime.datetime.utcfromtimestamp(self.TIMESTAMP))
|
||
|
|
|
||
|
|
|
||
|
|
# HTTPServerRequest is mainly tested incidentally to the server itself,
|
||
|
|
# but this tests the parts of the class that can be tested in isolation.
|
||
|
|
class HTTPServerRequestTest(unittest.TestCase):
|
||
|
|
def test_default_constructor(self):
|
||
|
|
# All parameters are formally optional, but uri is required
|
||
|
|
# (and has been for some time). This test ensures that no
|
||
|
|
# more required parameters slip in.
|
||
|
|
HTTPServerRequest(uri="/")
|
||
|
|
|
||
|
|
def test_body_is_a_byte_string(self):
|
||
|
|
requets = HTTPServerRequest(uri="/")
|
||
|
|
self.assertIsInstance(requets.body, bytes)
|
||
|
|
|
||
|
|
def test_repr_does_not_contain_headers(self):
|
||
|
|
request = HTTPServerRequest(
|
||
|
|
uri="/", headers=HTTPHeaders({"Canary": ["Coal Mine"]})
|
||
|
|
)
|
||
|
|
self.assertTrue("Canary" not in repr(request))
|
||
|
|
|
||
|
|
|
||
|
|
class ParseRequestStartLineTest(unittest.TestCase):
|
||
|
|
METHOD = "GET"
|
||
|
|
PATH = "/foo"
|
||
|
|
VERSION = "HTTP/1.1"
|
||
|
|
|
||
|
|
def test_parse_request_start_line(self):
|
||
|
|
start_line = " ".join([self.METHOD, self.PATH, self.VERSION])
|
||
|
|
parsed_start_line = parse_request_start_line(start_line)
|
||
|
|
self.assertEqual(parsed_start_line.method, self.METHOD)
|
||
|
|
self.assertEqual(parsed_start_line.path, self.PATH)
|
||
|
|
self.assertEqual(parsed_start_line.version, self.VERSION)
|
||
|
|
|
||
|
|
|
||
|
|
class ParseCookieTest(unittest.TestCase):
|
||
|
|
# These tests copied from Django:
|
||
|
|
# https://github.com/django/django/pull/6277/commits/da810901ada1cae9fc1f018f879f11a7fb467b28
|
||
|
|
def test_python_cookies(self):
|
||
|
|
"""
|
||
|
|
Test cases copied from Python's Lib/test/test_http_cookies.py
|
||
|
|
"""
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie("chips=ahoy; vienna=finger"),
|
||
|
|
{"chips": "ahoy", "vienna": "finger"},
|
||
|
|
)
|
||
|
|
# Here parse_cookie() differs from Python's cookie parsing in that it
|
||
|
|
# treats all semicolons as delimiters, even within quotes.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie('keebler="E=mc2; L=\\"Loves\\"; fudge=\\012;"'),
|
||
|
|
{"keebler": '"E=mc2', "L": '\\"Loves\\"', "fudge": "\\012", "": '"'},
|
||
|
|
)
|
||
|
|
# Illegal cookies that have an '=' char in an unquoted value.
|
||
|
|
self.assertEqual(parse_cookie("keebler=E=mc2"), {"keebler": "E=mc2"})
|
||
|
|
# Cookies with ':' character in their name.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie("key:term=value:term"), {"key:term": "value:term"}
|
||
|
|
)
|
||
|
|
# Cookies with '[' and ']'.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie("a=b; c=[; d=r; f=h"), {"a": "b", "c": "[", "d": "r", "f": "h"}
|
||
|
|
)
|
||
|
|
|
||
|
|
def test_cookie_edgecases(self):
|
||
|
|
# Cookies that RFC6265 allows.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie("a=b; Domain=example.com"), {"a": "b", "Domain": "example.com"}
|
||
|
|
)
|
||
|
|
# parse_cookie() has historically kept only the last cookie with the
|
||
|
|
# same name.
|
||
|
|
self.assertEqual(parse_cookie("a=b; h=i; a=c"), {"a": "c", "h": "i"})
|
||
|
|
|
||
|
|
def test_invalid_cookies(self):
|
||
|
|
"""
|
||
|
|
Cookie strings that go against RFC6265 but browsers will send if set
|
||
|
|
via document.cookie.
|
||
|
|
"""
|
||
|
|
# Chunks without an equals sign appear as unnamed values per
|
||
|
|
# https://bugzilla.mozilla.org/show_bug.cgi?id=169091
|
||
|
|
self.assertIn(
|
||
|
|
"django_language",
|
||
|
|
parse_cookie("abc=def; unnamed; django_language=en").keys(),
|
||
|
|
)
|
||
|
|
# Even a double quote may be an unamed value.
|
||
|
|
self.assertEqual(parse_cookie('a=b; "; c=d'), {"a": "b", "": '"', "c": "d"})
|
||
|
|
# Spaces in names and values, and an equals sign in values.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie("a b c=d e = f; gh=i"), {"a b c": "d e = f", "gh": "i"}
|
||
|
|
)
|
||
|
|
# More characters the spec forbids.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie('a b,c<>@:/[]?{}=d " =e,f g'),
|
||
|
|
{"a b,c<>@:/[]?{}": 'd " =e,f g'},
|
||
|
|
)
|
||
|
|
# Unicode characters. The spec only allows ASCII.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie("saint=André Bessette"),
|
||
|
|
{"saint": native_str("André Bessette")},
|
||
|
|
)
|
||
|
|
# Browsers don't send extra whitespace or semicolons in Cookie headers,
|
||
|
|
# but parse_cookie() should parse whitespace the same way
|
||
|
|
# document.cookie parses whitespace.
|
||
|
|
self.assertEqual(
|
||
|
|
parse_cookie(" = b ; ; = ; c = ; "), {"": "b", "c": ""}
|
||
|
|
)
|