Use a wrapper around xml.etree.ElementTree.fromstring in python 2.x (#7178)

Attributes aren't unicode objects, so they couldn't be directly used in info_dict fields (for example '--write-description' doesn't work with bytes).
This commit is contained in:
Jaime Marquínez Ferrándiz 2015-10-25 20:04:55 +01:00
parent 755ff8d22c
commit 36e6f62cd0
11 changed files with 61 additions and 21 deletions

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@ -13,8 +13,10 @@
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 +73,10 @@ def test_compat_urllib_parse_unquote_plus(self):
def test_compat_shlex_split(self):
self.assertEqual(compat_shlex_split('-option "one two"'), ['-option', 'one two'])
def test_compat_etree_fromstring(self):
xml = '<el foo="bar"></el>'
doc = compat_etree_fromstring(xml.encode('utf-8'))
self.assertTrue(isinstance(doc.attrib['foo'], compat_str))
if __name__ == '__main__':
unittest.main()

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@ -68,6 +68,9 @@
cli_valueless_option,
cli_bool_option,
)
from youtube_dl.compat import (
compat_etree_fromstring,
)
class TestUtil(unittest.TestCase):
@ -242,7 +245,7 @@ def test_find_xpath_attr(self):
<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 @@ def test_xpath_with_ns(self):
<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')
@ -285,7 +288,7 @@ def test_xpath_text(self):
<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)
@ -297,7 +300,7 @@ def test_xpath_attr(self):
<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)

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@ -14,6 +14,7 @@
import subprocess
import sys
import itertools
import xml.etree.ElementTree
try:
@ -212,6 +213,29 @@ def data_open(self, req):
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:
# on python 2.x the the attributes of a node are str objects instead of
# unicode
etree = xml.etree.ElementTree
# 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():
el.set(k, v.decode('utf-8'))
return el
def compat_etree_fromstring(text):
return _XML(text, parser=etree.XMLParser(target=etree.TreeBuilder(element_factory=_element_factory)))
try:
from urllib.parse import parse_qs as compat_parse_qs
@ -507,6 +531,7 @@ def compat_itertools_count(start=0, step=1):
'compat_chr',
'compat_cookiejar',
'compat_cookies',
'compat_etree_fromstring',
'compat_expanduser',
'compat_get_terminal_size',
'compat_getenv',

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@ -5,10 +5,10 @@
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 @@ def real_download(self, filename, info_dict):
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:

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@ -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 @@
remove_end,
unescapeHTML,
)
from ..compat import compat_HTTPError
from ..compat import (
compat_etree_fromstring,
compat_HTTPError,
)
class BBCCoUkIE(InfoExtractor):
@ -344,7 +346,7 @@ def _download_media_selector_url(self, url, programme_id=None):
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)

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@ -4,9 +4,11 @@
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 @@ def _real_extract(self, url):
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(

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@ -3,10 +3,10 @@
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 @@ def _build_brighcove_url(cls, object_str):
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

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@ -10,7 +10,6 @@
import socket
import sys
import time
import xml.etree.ElementTree
from ..compat import (
compat_cookiejar,
@ -23,6 +22,7 @@
compat_urllib_request,
compat_urlparse,
compat_str,
compat_etree_fromstring,
)
from ..utils import (
NO_DEFAULT,
@ -461,7 +461,7 @@ def _download_xml(self, url_or_request, video_id,
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',

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@ -5,12 +5,12 @@
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 @@ def ass_bool(strvalue):
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),

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@ -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 @@ def _formats_from_json(self, video_info):
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 @@ def _formats_from_json(self, video_info):
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']

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@ -36,6 +36,7 @@
from .compat import (
compat_basestring,
compat_chr,
compat_etree_fromstring,
compat_html_entities,
compat_http_client,
compat_kwargs,
@ -1974,7 +1975,7 @@ def parse_node(node):
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')