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bpo-30103: Allow Uuencode in Python using backtick as zero instead of space (#1326)

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Xiang Zhang 2017-05-03 11:16:21 +08:00 • committed by GitHub
parent 0360a9d015
commit 13f1f423fa
10 changed files with 137 additions and 67 deletions
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83
Lib/test/test_uu.py
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@ -10,11 +10,11 @@ import sys, os
import uu
import io
plaintext = b"The smooth-scaled python crept over the sleeping dog\n"
plaintext = b"The symbols on top of your keyboard are !@#$%^&*()_+|~\n"
encodedtext = b"""\
M5&AE('-M;V]T:\"US8V%L960@<'ET:&]N(&-R97!T(&]V97(@=&AE('-L965P
(:6YG(&1O9PH """
M5&AE('-Y;6)O;',@;VX@=&]P(&]F('EO=7(@:V5Y8F]A<F0@87)E("% (R0E
*7B8J*"E?*WQ^"@ """
# Stolen from io.py
class FakeIO(io.TextIOWrapper):
@ -44,9 +44,14 @@ class FakeIO(io.TextIOWrapper):
return self.buffer.getvalue().decode(self._encoding, self._errors)
def encodedtextwrapped(mode, filename):
return (bytes("begin %03o %s\n" % (mode, filename), "ascii") +
encodedtext + b"\n \nend\n")
def encodedtextwrapped(mode, filename, backtick=False):
if backtick:
res = (bytes("begin %03o %s\n" % (mode, filename), "ascii") +
encodedtext.replace(b' ', b'`') + b"\n`\nend\n")
else:
res = (bytes("begin %03o %s\n" % (mode, filename), "ascii") +
encodedtext + b"\n \nend\n")
return res
class UUTest(unittest.TestCase):
@ -59,20 +64,27 @@ class UUTest(unittest.TestCase):
out = io.BytesIO()
uu.encode(inp, out, "t1", 0o644)
self.assertEqual(out.getvalue(), encodedtextwrapped(0o644, "t1"))
inp = io.BytesIO(plaintext)
out = io.BytesIO()
uu.encode(inp, out, "t1", backtick=True)
self.assertEqual(out.getvalue(), encodedtextwrapped(0o666, "t1", True))
with self.assertRaises(TypeError):
uu.encode(inp, out, "t1", 0o644, True)
def test_decode(self):
inp = io.BytesIO(encodedtextwrapped(0o666, "t1"))
out = io.BytesIO()
uu.decode(inp, out)
self.assertEqual(out.getvalue(), plaintext)
inp = io.BytesIO(
b"UUencoded files may contain many lines,\n" +
b"even some that have 'begin' in them.\n" +
encodedtextwrapped(0o666, "t1")
)
out = io.BytesIO()
uu.decode(inp, out)
self.assertEqual(out.getvalue(), plaintext)
for backtick in True, False:
inp = io.BytesIO(encodedtextwrapped(0o666, "t1", backtick=backtick))
out = io.BytesIO()
uu.decode(inp, out)
self.assertEqual(out.getvalue(), plaintext)
inp = io.BytesIO(
b"UUencoded files may contain many lines,\n" +
b"even some that have 'begin' in them.\n" +
encodedtextwrapped(0o666, "t1", backtick=backtick)
)
out = io.BytesIO()
uu.decode(inp, out)
self.assertEqual(out.getvalue(), plaintext)
def test_truncatedinput(self):
inp = io.BytesIO(b"begin 644 t1\n" + encodedtext)
@ -94,25 +106,33 @@ class UUTest(unittest.TestCase):
def test_garbage_padding(self):
# Issue #22406
encodedtext = (
encodedtext1 = (
b"begin 644 file\n"
# length 1; bits 001100 111111 111111 111111
b"\x21\x2C\x5F\x5F\x5F\n"
b"\x20\n"
b"end\n"
)
encodedtext2 = (
b"begin 644 file\n"
# length 1; bits 001100 111111 111111 111111
b"\x21\x2C\x5F\x5F\x5F\n"
b"\x60\n"
b"end\n"
)
plaintext = b"\x33" # 00110011
with self.subTest("uu.decode()"):
inp = io.BytesIO(encodedtext)
out = io.BytesIO()
uu.decode(inp, out, quiet=True)
self.assertEqual(out.getvalue(), plaintext)
for encodedtext in encodedtext1, encodedtext2:
with self.subTest("uu.decode()"):
inp = io.BytesIO(encodedtext)
out = io.BytesIO()
uu.decode(inp, out, quiet=True)
self.assertEqual(out.getvalue(), plaintext)
with self.subTest("uu_codec"):
import codecs
decoded = codecs.decode(encodedtext, "uu_codec")
self.assertEqual(decoded, plaintext)
with self.subTest("uu_codec"):
import codecs
decoded = codecs.decode(encodedtext, "uu_codec")
self.assertEqual(decoded, plaintext)
class UUStdIOTest(unittest.TestCase):
@ -250,11 +270,6 @@ class UUFileTest(unittest.TestCase):
finally:
self._kill(f)
def test_main():
support.run_unittest(UUTest,
UUStdIOTest,
UUFileTest,
)
if __name__=="__main__":
test_main()
unittest.main()