Merge branch 'pr-crashfix_compat_urllib_unquote' of https://github.com/atomicdryad/youtube-dl into atomicdryad-pr-crashfix_compat_urllib_unquote

This commit is contained in:
Sergey M․ 2015-07-17 21:15:55 +06:00
commit 89f691e141
3 changed files with 84 additions and 29 deletions

View file

@ -14,6 +14,7 @@ from youtube_dl.utils import get_filesystem_encoding
from youtube_dl.compat import (
compat_getenv,
compat_expanduser,
compat_urllib_parse_unquote,
)
@ -42,5 +43,24 @@ class TestCompat(unittest.TestCase):
dir(youtube_dl.compat))) - set(['unicode_literals'])
self.assertEqual(all_names, sorted(present_names))
def test_compat_urllib_parse_unquote(self):
test_strings = [
['''''', ''''''],
['''津波''', '''%E6%B4%A5%E6%B3%A2'''],
['''津波''', str('%E6%B4%A5%E6%B3%A2')],
['''<meta property="og:description" content="▁▂▃▄%▅▆▇█" />
%<a href="https://ar.wikipedia.org/wiki/تسونامي">%a''',
'''<meta property="og:description" content="%E2%96%81%E2%96%82%E2%96%83%E2%96%84%25%E2%96%85%E2%96%86%E2%96%87%E2%96%88" />
%<a href="https://ar.wikipedia.org/wiki/%D8%AA%D8%B3%D9%88%D9%86%D8%A7%D9%85%D9%8A">%a'''],
['''(^◣_◢^)っ︻デ═一 ⇀ ⇀ ⇀ ⇀ ⇀ ↶%I%Break%Things%''',
'''%28%5E%E2%97%A3_%E2%97%A2%5E%29%E3%81%A3%EF%B8%BB%E3%83%87%E2%95%90%E4%B8%80 %E2%87%80 %E2%87%80 %E2%87%80 %E2%87%80 %E2%87%80 %E2%86%B6%I%Break%25Things%''']
]
for test in test_strings:
strutf = test[0]
strurlenc = test[1]
strurldec = compat_urllib_parse_unquote(strurlenc)
self.assertEqual(strutf, strurldec)
self.assertEqual(strutf, compat_urllib_parse_unquote(strurlenc))
if __name__ == '__main__':
unittest.main()

View file

@ -77,40 +77,73 @@ except ImportError:
try:
from urllib.parse import unquote as compat_urllib_parse_unquote
except ImportError:
def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
if string == '':
def compat_urllib_parse_unquote_to_bytes(string):
"""unquote_to_bytes('abc%20def') -> b'abc def'."""
# Note: strings are encoded as UTF-8. This is only an issue if it contains
# unescaped non-ASCII characters, which URIs should not.
if not string:
# Is it a string-like object?
string.split
return b''
if isinstance(string, str):
string = string.encode('utf-8')
# string = encode('utf-8')
# python3 -> 2: must implicitly convert to bits
bits = bytes(string).split(b'%')
if len(bits) == 1:
return string
res = string.split('%')
if len(res) == 1:
res = [bits[0]]
append = res.append
for item in bits[1:]:
if item == '':
append(b'%')
continue
try:
append(item[:2].decode('hex'))
append(item[2:])
except:
append(b'%')
append(item)
return b''.join(res)
compat_urllib_parse_asciire = re.compile('([\x00-\x7f]+)')
def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
"""Replace %xx escapes by their single-character equivalent. The optional
encoding and errors parameters specify how to decode percent-encoded
sequences into Unicode characters, as accepted by the bytes.decode()
method.
By default, percent-encoded sequences are decoded with UTF-8, and invalid
sequences are replaced by a placeholder character.
unquote('abc%20def') -> 'abc def'.
"""
if '%' not in string:
string.split
return string
if encoding is None:
encoding = 'utf-8'
if errors is None:
errors = 'replace'
# pct_sequence: contiguous sequence of percent-encoded bytes, decoded
pct_sequence = b''
string = res[0]
for item in res[1:]:
try:
if not item:
raise ValueError
pct_sequence += item[:2].decode('hex')
rest = item[2:]
if not rest:
# This segment was just a single percent-encoded character.
# May be part of a sequence of code units, so delay decoding.
# (Stored in pct_sequence).
continue
except ValueError:
rest = '%' + item
# Encountered non-percent-encoded characters. Flush the current
# pct_sequence.
string += pct_sequence.decode(encoding, errors) + rest
pct_sequence = b''
if pct_sequence:
# Flush the final pct_sequence
string += pct_sequence.decode(encoding, errors)
return string
bits = compat_urllib_parse_asciire.split(string)
res = [bits[0]]
append = res.append
for i in range(1, len(bits), 2):
foo = compat_urllib_parse_unquote_to_bytes(bits[i])
foo = foo.decode(encoding, errors)
append(foo)
if bits[i + 1]:
bar = bits[i + 1]
if not isinstance(bar, unicode):
bar = bar.decode('utf-8')
append(bar)
return ''.join(res)
try:
compat_str = unicode # Python 2
@ -421,7 +454,9 @@ __all__ = [
'compat_subprocess_get_DEVNULL',
'compat_urllib_error',
'compat_urllib_parse',
'compat_urllib_parse_asciire',
'compat_urllib_parse_unquote',
'compat_urllib_parse_unquote_to_bytes',
'compat_urllib_parse_urlparse',
'compat_urllib_request',
'compat_urlparse',

View file

@ -1115,7 +1115,7 @@ class GenericIE(InfoExtractor):
# Sometimes embedded video player is hidden behind percent encoding
# (e.g. https://github.com/rg3/youtube-dl/issues/2448)
# Unescaping the whole page allows to handle those cases in a generic way
webpage = compat_urllib_parse.unquote(webpage)
webpage = compat_urllib_parse_unquote(webpage)
# it's tempting to parse this further, but you would
# have to take into account all the variations like