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Merge pull request #7296 from jaimeMF/xml_attrib_unicode

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Use a wrapper around xml.etree.ElementTree.fromstring in python 2.x (…
This commit is contained in:
Sergey M 2015-10-31 18:15:21 +00:00
commit 30eecc6a04
13 changed files with 89 additions and 48 deletions
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17
test/test_compat.py
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@ -13,8 +13,10 @@ sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
from youtube_dl.utils import get_filesystem_encoding
from youtube_dl.compat import (
compat_getenv,
compat_etree_fromstring,
compat_expanduser,
compat_shlex_split,
compat_str,
compat_urllib_parse_unquote,
compat_urllib_parse_unquote_plus,
)
@ -71,5 +73,20 @@ class TestCompat(unittest.TestCase):
def test_compat_shlex_split(self):
self.assertEqual(compat_shlex_split('-option "one two"'), ['-option', 'one two'])
def test_compat_etree_fromstring(self):
xml = '''
<root foo="bar" spam="中文">
<normal>foo</normal>
<chinese>中文</chinese>
<foo><bar>spam</bar></foo>
</root>
'''
doc = compat_etree_fromstring(xml.encode('utf-8'))
self.assertTrue(isinstance(doc.attrib['foo'], compat_str))
self.assertTrue(isinstance(doc.attrib['spam'], compat_str))
self.assertTrue(isinstance(doc.find('normal').text, compat_str))
self.assertTrue(isinstance(doc.find('chinese').text, compat_str))
self.assertTrue(isinstance(doc.find('foo/bar').text, compat_str))
if __name__ == '__main__':
unittest.main()

11
test/test_utils.py
View File

@ -68,6 +68,9 @@ from youtube_dl.utils import (
cli_valueless_option,
cli_bool_option,
)
from youtube_dl.compat import (
compat_etree_fromstring,
)
class TestUtil(unittest.TestCase):
@ -242,7 +245,7 @@ class TestUtil(unittest.TestCase):
<node x="b" y="d" />
<node x="" />
</root>'''
doc = xml.etree.ElementTree.fromstring(testxml)
doc = compat_etree_fromstring(testxml)
self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n'), None)
self.assertEqual(find_xpath_attr(doc, './/fourohfour', 'n', 'v'), None)
@ -263,7 +266,7 @@ class TestUtil(unittest.TestCase):
<url>http://server.com/download.mp3</url>
</media:song>
</root>'''
doc = xml.etree.ElementTree.fromstring(testxml)
doc = compat_etree_fromstring(testxml)
find = lambda p: doc.find(xpath_with_ns(p, {'media': 'http://example.com/'}))
self.assertTrue(find('media:song') is not None)
self.assertEqual(find('media:song/media:author').text, 'The Author')
@ -292,7 +295,7 @@ class TestUtil(unittest.TestCase):
<p>Foo</p>
</div>
</root>'''
doc = xml.etree.ElementTree.fromstring(testxml)
doc = compat_etree_fromstring(testxml)
self.assertEqual(xpath_text(doc, 'div/p'), 'Foo')
self.assertEqual(xpath_text(doc, 'div/bar', default='default'), 'default')
self.assertTrue(xpath_text(doc, 'div/bar') is None)
@ -304,7 +307,7 @@ class TestUtil(unittest.TestCase):
<p x="a">Foo</p>
</div>
</root>'''
doc = xml.etree.ElementTree.fromstring(testxml)
doc = compat_etree_fromstring(testxml)
self.assertEqual(xpath_attr(doc, 'div/p', 'x'), 'a')
self.assertEqual(xpath_attr(doc, 'div/bar', 'x'), None)
self.assertEqual(xpath_attr(doc, 'div/p', 'y'), None)

39
youtube_dl/compat.py
View File

@ -14,6 +14,7 @@ import socket
import subprocess
import sys
import itertools
import xml.etree.ElementTree
try:
@ -212,6 +213,43 @@ try:
except ImportError: # Python 2.6
from xml.parsers.expat import ExpatError as compat_xml_parse_error
if sys.version_info[0] >= 3:
compat_etree_fromstring = xml.etree.ElementTree.fromstring
else:
# python 2.x tries to encode unicode strings with ascii (see the
# XMLParser._fixtext method)
etree = xml.etree.ElementTree
try:
_etree_iter = etree.Element.iter
except AttributeError: # Python <=2.6
def _etree_iter(root):
for el in root.findall('*'):
yield el
for sub in _etree_iter(el):
yield sub
# on 2.6 XML doesn't have a parser argument, function copied from CPython
# 2.7 source
def _XML(text, parser=None):
if not parser:
parser = etree.XMLParser(target=etree.TreeBuilder())
parser.feed(text)
return parser.close()
def _element_factory(*args, **kwargs):
el = etree.Element(*args, **kwargs)
for k, v in el.items():
if isinstance(v, bytes):
el.set(k, v.decode('utf-8'))
return el
def compat_etree_fromstring(text):
doc = _XML(text, parser=etree.XMLParser(target=etree.TreeBuilder(element_factory=_element_factory)))
for el in _etree_iter(doc):
if el.text is not None and isinstance(el.text, bytes):
el.text = el.text.decode('utf-8')
return doc
try:
from urllib.parse import parse_qs as compat_parse_qs
@ -507,6 +545,7 @@ __all__ = [
'compat_chr',
'compat_cookiejar',
'compat_cookies',
'compat_etree_fromstring',
'compat_expanduser',
'compat_get_terminal_size',
'compat_getenv',

4
youtube_dl/downloader/f4m.py
View File

@ -5,10 +5,10 @@ import io
import itertools
import os
import time
import xml.etree.ElementTree as etree
from .fragment import FragmentFD
from ..compat import (
compat_etree_fromstring,
compat_urlparse,
compat_urllib_error,
compat_urllib_parse_urlparse,
@ -290,7 +290,7 @@ class F4mFD(FragmentFD):
man_url = urlh.geturl()
manifest = urlh.read()
doc = etree.fromstring(manifest)
doc = compat_etree_fromstring(manifest)
formats = [(int(f.attrib.get('bitrate', -1)), f)
for f in self._get_unencrypted_media(doc)]
if requested_bitrate is None:

4
youtube_dl/extractor/ard.py
View File

@ -14,8 +14,8 @@ from ..utils import (
parse_duration,
unified_strdate,
xpath_text,
parse_xml,
)
from ..compat import compat_etree_fromstring
class ARDMediathekIE(InfoExtractor):
@ -161,7 +161,7 @@ class ARDMediathekIE(InfoExtractor):
raise ExtractorError('This program is only suitable for those aged 12 and older. Video %s is therefore only available between 20 pm and 6 am.' % video_id, expected=True)
if re.search(r'[\?&]rss($|[=&])', url):
doc = parse_xml(webpage)
doc = compat_etree_fromstring(webpage.encode('utf-8'))
if doc.tag == 'rss':
return GenericIE()._extract_rss(url, video_id, doc)

8
youtube_dl/extractor/bbc.py
View File

@ -2,7 +2,6 @@
from __future__ import unicode_literals
import re
import xml.etree.ElementTree
from .common import InfoExtractor
from ..utils import (
@ -14,7 +13,10 @@ from ..utils import (
remove_end,
unescapeHTML,
)
from ..compat import compat_HTTPError
from ..compat import (
compat_etree_fromstring,
compat_HTTPError,
)
class BBCCoUkIE(InfoExtractor):
@ -344,7 +346,7 @@ class BBCCoUkIE(InfoExtractor):
url, programme_id, 'Downloading media selection XML')
except ExtractorError as ee:
if isinstance(ee.cause, compat_HTTPError) and ee.cause.code == 403:
media_selection = xml.etree.ElementTree.fromstring(ee.cause.read().decode('utf-8'))
media_selection = compat_etree_fromstring(ee.cause.read().decode('utf-8'))
else:
raise
return self._process_media_selector(media_selection, programme_id)

6
youtube_dl/extractor/bilibili.py
View File

@ -4,9 +4,11 @@ from __future__ import unicode_literals
import re
import itertools
import json
import xml.etree.ElementTree as ET
from .common import InfoExtractor
from ..compat import (
compat_etree_fromstring,
)
from ..utils import (
int_or_none,
unified_strdate,
@ -88,7 +90,7 @@ class BiliBiliIE(InfoExtractor):
except ValueError:
pass
lq_doc = ET.fromstring(lq_page)
lq_doc = compat_etree_fromstring(lq_page)
lq_durls = lq_doc.findall('./durl')
hq_doc = self._download_xml(

4
youtube_dl/extractor/brightcove.py
View File

@ -3,10 +3,10 @@ from __future__ import unicode_literals
import re
import json
import xml.etree.ElementTree
from .common import InfoExtractor
from ..compat import (
compat_etree_fromstring,
compat_parse_qs,
compat_str,
compat_urllib_parse,
@ -119,7 +119,7 @@ class BrightcoveIE(InfoExtractor):
object_str = fix_xml_ampersands(object_str)
try:
object_doc = xml.etree.ElementTree.fromstring(object_str.encode('utf-8'))
object_doc = compat_etree_fromstring(object_str.encode('utf-8'))
except compat_xml_parse_error:
return

4
youtube_dl/extractor/common.py
View File

@ -10,7 +10,6 @@ import re
import socket
import sys
import time
import xml.etree.ElementTree
from ..compat import (
compat_cookiejar,
@ -23,6 +22,7 @@ from ..compat import (
compat_urllib_request,
compat_urlparse,
compat_str,
compat_etree_fromstring,
)
from ..utils import (
NO_DEFAULT,
@ -461,7 +461,7 @@ class InfoExtractor(object):
return xml_string
if transform_source:
xml_string = transform_source(xml_string)
return xml.etree.ElementTree.fromstring(xml_string.encode('utf-8'))
return compat_etree_fromstring(xml_string.encode('utf-8'))
def _download_json(self, url_or_request, video_id,
note='Downloading JSON metadata',

4
youtube_dl/extractor/crunchyroll.py
View File

@ -5,12 +5,12 @@ import re
import json
import base64
import zlib
import xml.etree.ElementTree
from hashlib import sha1
from math import pow, sqrt, floor
from .common import InfoExtractor
from ..compat import (
compat_etree_fromstring,
compat_urllib_parse,
compat_urllib_parse_unquote,
compat_urllib_request,
@ -234,7 +234,7 @@ Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
return output
def _extract_subtitles(self, subtitle):
sub_root = xml.etree.ElementTree.fromstring(subtitle)
sub_root = compat_etree_fromstring(subtitle)
return [{
'ext': 'srt',
'data': self._convert_subtitles_to_srt(sub_root),

4
youtube_dl/extractor/generic.py
View File

@ -9,6 +9,7 @@ import sys
from .common import InfoExtractor
from .youtube import YoutubeIE
from ..compat import (
compat_etree_fromstring,
compat_urllib_parse_unquote,
compat_urllib_request,
compat_urlparse,
@ -21,7 +22,6 @@ from ..utils import (
HEADRequest,
is_html,
orderedSet,
parse_xml,
smuggle_url,
unescapeHTML,
unified_strdate,
@ -1238,7 +1238,7 @@ class GenericIE(InfoExtractor):
# Is it an RSS feed, a SMIL file or a XSPF playlist?
try:
doc = parse_xml(webpage)
doc = compat_etree_fromstring(webpage.encode('utf-8'))
if doc.tag == 'rss':
return self._extract_rss(url, video_id, doc)
elif re.match(r'^(?:{[^}]+})?smil$', doc.tag):

6
youtube_dl/extractor/vevo.py
View File

@ -1,10 +1,10 @@
from __future__ import unicode_literals
import re
import xml.etree.ElementTree
from .common import InfoExtractor
from ..compat import (
compat_etree_fromstring,
compat_urllib_request,
)
from ..utils import (
@ -97,7 +97,7 @@ class VevoIE(InfoExtractor):
if last_version['version'] == -1:
raise ExtractorError('Unable to extract last version of the video')
renditions = xml.etree.ElementTree.fromstring(last_version['data'])
renditions = compat_etree_fromstring(last_version['data'])
formats = []
# Already sorted from worst to best quality
for rend in renditions.findall('rendition'):
@ -114,7 +114,7 @@ class VevoIE(InfoExtractor):
def _formats_from_smil(self, smil_xml):
formats = []
smil_doc = xml.etree.ElementTree.fromstring(smil_xml.encode('utf-8'))
smil_doc = compat_etree_fromstring(smil_xml.encode('utf-8'))
els = smil_doc.findall('.//{http://www.w3.org/2001/SMIL20/Language}video')
for el in els:
src = el.attrib['src']

26
youtube_dl/utils.py
View File

@ -36,6 +36,7 @@ import zlib
from .compat import (
compat_basestring,
compat_chr,
compat_etree_fromstring,
compat_html_entities,
compat_http_client,
compat_kwargs,
@ -1665,29 +1666,6 @@ def encode_dict(d, encoding='utf-8'):
return dict((k.encode(encoding), v.encode(encoding)) for k, v in d.items())
try:
etree_iter = xml.etree.ElementTree.Element.iter
except AttributeError: # Python <=2.6
etree_iter = lambda n: n.findall('.//*')
def parse_xml(s):
class TreeBuilder(xml.etree.ElementTree.TreeBuilder):
def doctype(self, name, pubid, system):
pass # Ignore doctypes
parser = xml.etree.ElementTree.XMLParser(target=TreeBuilder())
kwargs = {'parser': parser} if sys.version_info >= (2, 7) else {}
tree = xml.etree.ElementTree.XML(s.encode('utf-8'), **kwargs)
# Fix up XML parser in Python 2.x
if sys.version_info < (3, 0):
for n in etree_iter(tree):
if n.text is not None:
if not isinstance(n.text, compat_str):
n.text = n.text.decode('utf-8')
return tree
US_RATINGS = {
'G': 0,
'PG': 10,
@ -1988,7 +1966,7 @@ def dfxp2srt(dfxp_data):
return out
dfxp = xml.etree.ElementTree.fromstring(dfxp_data.encode('utf-8'))
dfxp = compat_etree_fromstring(dfxp_data.encode('utf-8'))
out = []
paras = dfxp.findall(_x('.//ttml:p')) or dfxp.findall(_x('.//ttaf1:p')) or dfxp.findall('.//p')