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65 lines
2.5 KiB
65 lines
2.5 KiB
5 months ago
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From 92c5f8b8dbfc73780f8404b225b1282d58c5cd96 Mon Sep 17 00:00:00 2001
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From: Bert JW Regeer <bertjw@regeer.org>
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Date: Sat, 12 Mar 2022 19:16:23 -0700
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Subject: [PATCH 6/8] Remove extraneous calls to .strip() in Chunked Encoding
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To be valid chunked encoding we should not be removing any whitespace as
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the standard does not allow for optional whitespace.
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If whitespace is encountered in the wrong place, it should lead to a 400
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Bad Request instead.
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(cherry picked from commit bd22869c143a3f1284f271399524676efbafa655)
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---
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waitress/receiver.py | 6 +-----
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waitress/tests/test_receiver.py | 2 +-
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2 files changed, 2 insertions(+), 6 deletions(-)
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diff --git a/waitress/receiver.py b/waitress/receiver.py
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index 9e4bffe..806ff87 100644
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--- a/waitress/receiver.py
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+++ b/waitress/receiver.py
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@@ -135,7 +135,6 @@ class ChunkedReceiver(object):
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line = s[:pos]
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s = s[pos + 2 :]
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self.control_line = b""
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- line = line.strip()
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if line:
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# Begin a new chunk.
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@@ -153,9 +152,6 @@ class ChunkedReceiver(object):
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line = line[:semi]
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- # Remove any whitespace
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- line = line.strip()
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-
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if not ONLY_HEXDIG_RE.match(line):
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self.error = BadRequest("Invalid chunk size")
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self.all_chunks_received = True
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@@ -164,7 +160,7 @@ class ChunkedReceiver(object):
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# Can not fail due to matching against the regular
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# expression above
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- sz = int(line.strip(), 16) # hexadecimal
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+ sz = int(line, 16) # hexadecimal
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if sz > 0:
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# Start a new chunk.
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diff --git a/waitress/tests/test_receiver.py b/waitress/tests/test_receiver.py
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index b539264..fd192c1 100644
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--- a/waitress/tests/test_receiver.py
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+++ b/waitress/tests/test_receiver.py
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@@ -259,7 +259,7 @@ class TestChunkedReceiverParametrized:
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def test_received_invalid_size(self, invalid_size):
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from waitress.utilities import BadRequest
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- for invalid_size in [b"0x04", b"+0x04", b"x04", b"+04"]:
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+ for invalid_size in [b"0x04", b"+0x04", b"x04", b"+04", b" 04", b" 0x04"]:
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buf = DummyBuffer()
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inst = self._makeOne(buf)
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data = invalid_size + b"\r\ntest\r\n"
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--
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2.45.2
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