Merge branch 'atomicdryad-pr-crashfix_compat_urllib_unquote'

This commit is contained in:
Sergey M․ 2015-07-17 22:59:17 +06:00
commit 13fc7f3a05
3 changed files with 69 additions and 30 deletions

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@ -14,6 +14,7 @@
from youtube_dl.compat import ( from youtube_dl.compat import (
compat_getenv, compat_getenv,
compat_expanduser, compat_expanduser,
compat_urllib_parse_unquote,
) )
@ -42,5 +43,23 @@ def test_all_present(self):
dir(youtube_dl.compat))) - set(['unicode_literals']) dir(youtube_dl.compat))) - set(['unicode_literals'])
self.assertEqual(all_names, sorted(present_names)) self.assertEqual(all_names, sorted(present_names))
def test_compat_urllib_parse_unquote(self):
self.assertEqual(compat_urllib_parse_unquote(''), '')
self.assertEqual(compat_urllib_parse_unquote('%'), '%')
self.assertEqual(compat_urllib_parse_unquote('%%'), '%%')
self.assertEqual(compat_urllib_parse_unquote('%%%'), '%%%')
self.assertEqual(compat_urllib_parse_unquote('%2F'), '/')
self.assertEqual(compat_urllib_parse_unquote('%2f'), '/')
self.assertEqual(compat_urllib_parse_unquote('%E6%B4%A5%E6%B3%A2'), '津波')
self.assertEqual(compat_urllib_parse_unquote(str('%E6%B4%A5%E6%B3%A2')), '津波')
self.assertEqual(
compat_urllib_parse_unquote('''<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'''),
'''<meta property="og:description" content="▁▂▃▄%▅▆▇█" />
%<a href="https://ar.wikipedia.org/wiki/تسونامي">%a''')
self.assertEqual(
compat_urllib_parse_unquote('''%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%'''),
'''(^◣_◢^)っ︻デ═一 ⇀ ⇀ ⇀ ⇀ ⇀ ↶%I%Break%Things%''')
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()

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@ -75,42 +75,61 @@
import BaseHTTPServer as compat_http_server import BaseHTTPServer as compat_http_server
try: try:
from urllib.parse import unquote_to_bytes as compat_urllib_parse_unquote_to_bytes
from urllib.parse import unquote as compat_urllib_parse_unquote from urllib.parse import unquote as compat_urllib_parse_unquote
except ImportError: except ImportError: # Python 2
def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'): # HACK: The following are the correct unquote_to_bytes and unquote
if string == '': # implementations from cpython 3.4.3's stdlib. Python 2's version
# is apparently broken (see https://github.com/rg3/youtube-dl/pull/6244)
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, unicode):
string = string.encode('utf-8')
bits = string.split(b'%')
if len(bits) == 1:
return string return string
res = string.split('%') res = [bits[0]]
if len(res) == 1: append = res.append
for item in bits[1:]:
try:
append(compat_urllib_parse._hextochr[item[:2]])
append(item[2:])
except KeyError:
append(b'%')
append(item)
return b''.join(res)
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 return string
if encoding is None: if encoding is None:
encoding = 'utf-8' encoding = 'utf-8'
if errors is None: if errors is None:
errors = 'replace' errors = 'replace'
# pct_sequence: contiguous sequence of percent-encoded bytes, decoded bits = compat_urllib_parse._asciire.split(string)
pct_sequence = b'' res = [bits[0]]
string = res[0] append = res.append
for item in res[1:]: for i in range(1, len(bits), 2):
try: append(compat_urllib_parse_unquote_to_bytes(bits[i]).decode(encoding, errors))
if not item: append(bits[i + 1])
raise ValueError return ''.join(res)
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
try: try:
compat_str = unicode # Python 2 compat_str = unicode # Python 2
@ -422,6 +441,7 @@ def compat_itertools_count(start=0, step=1):
'compat_urllib_error', 'compat_urllib_error',
'compat_urllib_parse', 'compat_urllib_parse',
'compat_urllib_parse_unquote', 'compat_urllib_parse_unquote',
'compat_urllib_parse_unquote_to_bytes',
'compat_urllib_parse_urlparse', 'compat_urllib_parse_urlparse',
'compat_urllib_request', 'compat_urllib_request',
'compat_urlparse', 'compat_urlparse',

View File

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