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-rw-r--r--youtube_dl/compat.py91
-rw-r--r--youtube_dl/extractor/generic.py2
2 files changed, 64 insertions, 29 deletions
diff --git a/youtube_dl/compat.py b/youtube_dl/compat.py
index c3783337a..9e506352f 100644
--- a/youtube_dl/compat.py
+++ b/youtube_dl/compat.py
@@ -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',
diff --git a/youtube_dl/extractor/generic.py b/youtube_dl/extractor/generic.py
index 392ad3648..fc1bf2b6e 100644
--- a/youtube_dl/extractor/generic.py
+++ b/youtube_dl/extractor/generic.py
@@ -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