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[extractor/common] Introduce _parse_xml

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Sergey M․ 2017-08-23 00:32:41 +07:00
parent 05915e379a
commit e01c3d2ef7
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1 changed files with 18 additions and 3 deletions
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21
youtube_dl/extractor/common.py
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@ -27,6 +27,7 @@ from ..compat import (
compat_urllib_parse_urlencode, compat_urllib_parse_urlencode,
compat_urllib_request, compat_urllib_request,
compat_urlparse, compat_urlparse,
compat_xml_parse_error,
) )
from ..downloader.f4m import remove_encrypted_media from ..downloader.f4m import remove_encrypted_media
from ..utils import ( from ..utils import (
@ -646,15 +647,29 @@ class InfoExtractor(object):
def _download_xml(self, url_or_request, video_id, def _download_xml(self, url_or_request, video_id,
note='Downloading XML', errnote='Unable to download XML', note='Downloading XML', errnote='Unable to download XML',
transform_source=None, fatal=True, encoding=None, data=None, headers={}, query={}): transform_source=None, fatal=True, encoding=None,
data=None, headers={}, query={}):
"""Return the xml as an xml.etree.ElementTree.Element""" """Return the xml as an xml.etree.ElementTree.Element"""
xml_string = self._download_webpage( xml_string = self._download_webpage(
url_or_request, video_id, note, errnote, fatal=fatal, encoding=encoding, data=data, headers=headers, query=query) url_or_request, video_id, note, errnote, fatal=fatal,
encoding=encoding, data=data, headers=headers, query=query)
if xml_string is False: if xml_string is False:
return xml_string return xml_string
return self._parse_xml(
xml_string, video_id, transform_source=transform_source,
fatal=fatal)
def _parse_xml(self, xml_string, video_id, transform_source=None, fatal=True):
if transform_source: if transform_source:
xml_string = transform_source(xml_string) xml_string = transform_source(xml_string)
return compat_etree_fromstring(xml_string.encode('utf-8')) try:
return compat_etree_fromstring(xml_string.encode('utf-8'))
except compat_xml_parse_error as ve:
errmsg = '%s: Failed to parse XML ' % video_id
if fatal:
raise ExtractorError(errmsg, cause=ve)
else:
self.report_warning(errmsg + str(ve))
def _download_json(self, url_or_request, video_id, def _download_json(self, url_or_request, video_id,
note='Downloading JSON metadata', note='Downloading JSON metadata',