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import unittest
import pytest
class TestFixedStreamReceiver(unittest.TestCase):
def _makeOne(self, cl, buf):
from waitress.receiver import FixedStreamReceiver
return FixedStreamReceiver(cl, buf)
def test_received_remain_lt_1(self):
buf = DummyBuffer()
inst = self._makeOne(0, buf)
result = inst.received("a")
self.assertEqual(result, 0)
self.assertTrue(inst.completed)
def test_received_remain_lte_datalen(self):
buf = DummyBuffer()
inst = self._makeOne(1, buf)
result = inst.received("aa")
self.assertEqual(result, 1)
self.assertTrue(inst.completed)
self.assertEqual(inst.completed, 1)
self.assertEqual(inst.remain, 0)
self.assertListEqual(buf.data, ["a"])
def test_received_remain_gt_datalen(self):
buf = DummyBuffer()
inst = self._makeOne(10, buf)
result = inst.received("aa")
self.assertEqual(result, 2)
self.assertFalse(inst.completed)
self.assertEqual(inst.remain, 8)
self.assertListEqual(buf.data, ["aa"])
def test_getfile(self):
buf = DummyBuffer()
inst = self._makeOne(10, buf)
self.assertEqual(inst.getfile(), buf)
def test_getbuf(self):
buf = DummyBuffer()
inst = self._makeOne(10, buf)
self.assertEqual(inst.getbuf(), buf)
def test___len__(self):
buf = DummyBuffer(["1", "2"])
inst = self._makeOne(10, buf)
self.assertEqual(inst.__len__(), 2)
class TestChunkedReceiver(unittest.TestCase):
def _makeOne(self, buf):
from waitress.receiver import ChunkedReceiver
return ChunkedReceiver(buf)
def test_alreadycompleted(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
inst.completed = True
result = inst.received(b"a")
self.assertEqual(result, 0)
self.assertTrue(inst.completed)
def test_received_remain_gt_zero(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
inst.chunk_remainder = 100
result = inst.received(b"a")
self.assertEqual(inst.chunk_remainder, 99)
self.assertEqual(result, 1)
self.assertFalse(inst.completed)
def test_received_control_line_notfinished(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
result = inst.received(b"a")
self.assertEqual(inst.control_line, b"a")
self.assertEqual(result, 1)
self.assertFalse(inst.completed)
def test_received_control_line_finished_garbage_in_input(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
result = inst.received(b"garbage\r\n")
self.assertEqual(result, 9)
self.assertTrue(inst.error)
def test_received_control_line_finished_all_chunks_not_received(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
result = inst.received(b"a;discard\r\n")
self.assertEqual(inst.control_line, b"")
self.assertEqual(inst.chunk_remainder, 10)
self.assertFalse(inst.all_chunks_received)
self.assertEqual(result, 11)
self.assertFalse(inst.completed)
def test_received_control_line_finished_all_chunks_received(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
result = inst.received(b"0;discard\r\n")
self.assertEqual(inst.control_line, b"")
self.assertTrue(inst.all_chunks_received)
self.assertEqual(result, 11)
self.assertFalse(inst.completed)
def test_received_trailer_startswith_crlf(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
inst.all_chunks_received = True
result = inst.received(b"\r\n")
self.assertEqual(result, 2)
self.assertTrue(inst.completed)
def test_received_trailer_startswith_lf(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
inst.all_chunks_received = True
result = inst.received(b"\n")
self.assertEqual(result, 1)
self.assertFalse(inst.completed)
def test_received_trailer_not_finished(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
inst.all_chunks_received = True
result = inst.received(b"a")
self.assertEqual(result, 1)
self.assertFalse(inst.completed)
def test_received_trailer_finished(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
inst.all_chunks_received = True
result = inst.received(b"abc\r\n\r\n")
self.assertEqual(inst.trailer, b"abc\r\n\r\n")
self.assertEqual(result, 7)
self.assertTrue(inst.completed)
def test_getfile(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
self.assertEqual(inst.getfile(), buf)
def test_getbuf(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
self.assertEqual(inst.getbuf(), buf)
def test___len__(self):
buf = DummyBuffer(["1", "2"])
inst = self._makeOne(buf)
self.assertEqual(len(inst), 2)
def test_received_chunk_is_properly_terminated(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
data = b"4\r\nWiki\r\n"
result = inst.received(data)
self.assertEqual(result, len(data))
self.assertFalse(inst.completed)
self.assertEqual(buf.data[0], b"Wiki")
def test_received_chunk_not_properly_terminated(self):
from waitress.utilities import BadRequest
buf = DummyBuffer()
inst = self._makeOne(buf)
data = b"4\r\nWikibadchunk\r\n"
result = inst.received(data)
self.assertEqual(result, len(data))
self.assertFalse(inst.completed)
self.assertEqual(buf.data[0], b"Wiki")
self.assertIsInstance(inst.error, BadRequest)
def test_received_multiple_chunks(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
data = (
b"4\r\n"
b"Wiki\r\n"
b"5\r\n"
b"pedia\r\n"
b"E\r\n"
b" in\r\n"
b"\r\n"
b"chunks.\r\n"
b"0\r\n"
b"\r\n"
)
result = inst.received(data)
self.assertEqual(result, len(data))
self.assertTrue(inst.completed)
self.assertEqual(b"".join(buf.data), b"Wikipedia in\r\n\r\nchunks.")
self.assertIsNone(inst.error)
def test_received_multiple_chunks_split(self):
buf = DummyBuffer()
inst = self._makeOne(buf)
data1 = b"4\r\nWiki\r"
result = inst.received(data1)
self.assertEqual(result, len(data1))
data2 = (
b"\n5\r\n"
b"pedia\r\n"
b"E\r\n"
b" in\r\n"
b"\r\n"
b"chunks.\r\n"
b"0\r\n"
b"\r\n"
)
result = inst.received(data2)
self.assertEqual(result, len(data2))
self.assertTrue(inst.completed)
self.assertEqual(b"".join(buf.data), b"Wikipedia in\r\n\r\nchunks.")
self.assertIsNone(inst.error)
class TestChunkedReceiverParametrized:
def _makeOne(self, buf):
from waitress.receiver import ChunkedReceiver
return ChunkedReceiver(buf)
@pytest.mark.parametrize(
"invalid_extension", [b"\n", b"invalid=", b"\r", b"invalid = true"]
)
def test_received_invalid_extensions(self, invalid_extension):
from waitress.utilities import BadRequest
buf = DummyBuffer()
inst = self._makeOne(buf)
data = b"4;" + invalid_extension + b"\r\ntest\r\n"
result = inst.received(data)
assert result == len(data)
assert isinstance(inst.error, BadRequest)
assert inst.error.body == "Invalid chunk extension"
@pytest.mark.parametrize(
"valid_extension", [b"test", b"valid=true", b"valid=true;other=true"]
)
def test_received_valid_extensions(self, valid_extension):
# While waitress may ignore extensions in Chunked Encoding, we do want
# to make sure that we don't fail when we do encounter one that is
# valid
buf = DummyBuffer()
inst = self._makeOne(buf)
data = b"4;" + valid_extension + b"\r\ntest\r\n"
result = inst.received(data)
assert result == len(data)
assert inst.error is None
@pytest.mark.parametrize(
"invalid_size", [b"0x04", b"+0x04", b"x04", b"+04", b" 04", b" 0x04"]
)
def test_received_invalid_size(self, invalid_size):
from waitress.utilities import BadRequest
buf = DummyBuffer()
inst = self._makeOne(buf)
data = invalid_size + b"\r\ntest\r\n"
result = inst.received(data)
assert result == len(data)
assert isinstance(inst.error, BadRequest)
assert inst.error.body == "Invalid chunk size"
class DummyBuffer:
def __init__(self, data=None):
if data is None:
data = []
self.data = data
def append(self, s):
self.data.append(s)
def getfile(self):
return self
def __len__(self):
return len(self.data)
|
