removed dependency from lxml: added IDParser
This commit is contained in:
Filippo Valsorda - Campagna
parent
d6a9615347
commit
c6f45d4314
131
youtube-dl
131
youtube-dl
@ -15,6 +15,7 @@ __authors__ = (
|
||||
'Kevin Ngo',
|
||||
'Ori Avtalion',
|
||||
'shizeeg',
|
||||
'Filippo Valsorda',
|
||||
)
|
||||
|
||||
__license__ = 'Public Domain'
|
||||
@ -66,11 +67,6 @@ try:
|
||||
except ImportError:
|
||||
from cgi import parse_qs
|
||||
|
||||
try:
|
||||
import lxml.etree
|
||||
except ImportError:
|
||||
pass # Handled below
|
||||
|
||||
try:
|
||||
import xml.etree.ElementTree
|
||||
except ImportError: # Python<2.5: Not officially supported, but let it slip
|
||||
@ -197,6 +193,69 @@ except ImportError: # Python <2.6, use trivialjson (https://github.com/phihag/tr
|
||||
raise ValueError('Extra data at end of input (index ' + str(i) + ' of ' + repr(s) + ': ' + repr(s[i:]) + ')')
|
||||
return res
|
||||
|
||||
|
||||
class IDParser(HTMLParser.HTMLParser):
|
||||
"""Modified HTMLParser that isolates a tag with the specified id"""
|
||||
def __init__(self, id):
|
||||
self.id = id
|
||||
self.result = None
|
||||
self.started = False
|
||||
self.depth = {}
|
||||
self.html = None
|
||||
self.watch_startpos = False
|
||||
HTMLParser.HTMLParser.__init__(self)
|
||||
|
||||
def loads(self, html):
|
||||
self.html = html
|
||||
self.feed(html)
|
||||
self.close()
|
||||
|
||||
def handle_starttag(self, tag, attrs):
|
||||
attrs = dict(attrs)
|
||||
if self.started:
|
||||
self.find_startpos(None)
|
||||
if 'id' in attrs and attrs['id'] == self.id:
|
||||
self.result = [tag]
|
||||
self.started = True
|
||||
self.watch_startpos = True
|
||||
if self.started:
|
||||
if not tag in self.depth: self.depth[tag] = 0
|
||||
self.depth[tag] += 1
|
||||
|
||||
def handle_endtag(self, tag):
|
||||
if self.started:
|
||||
if tag in self.depth: self.depth[tag] -= 1
|
||||
if self.depth[self.result[0]] == 0:
|
||||
self.started = False
|
||||
self.result.append(self.getpos())
|
||||
|
||||
def find_startpos(self, x):
|
||||
"""Needed to put the start position of the result (self.result[1])
|
||||
after the opening tag with the requested id"""
|
||||
if self.watch_startpos:
|
||||
self.watch_startpos = False
|
||||
self.result.append(self.getpos())
|
||||
handle_entityref = handle_charref = handle_data = handle_comment = \
|
||||
handle_decl = handle_pi = unknown_decl = find_startpos
|
||||
|
||||
def get_result(self):
|
||||
if self.result == None: return None
|
||||
if len(self.result) != 3: return None
|
||||
lines = self.html.split('\n')
|
||||
lines = lines[self.result[1][0]-1:self.result[2][0]]
|
||||
lines[0] = lines[0][self.result[1][1]:]
|
||||
if len(lines) == 1:
|
||||
lines[-1] = lines[-1][:self.result[2][1]-self.result[1][1]]
|
||||
lines[-1] = lines[-1][:self.result[2][1]]
|
||||
return '\n'.join(lines).strip()
|
||||
|
||||
def get_element_by_id(id, html):
|
||||
"""Return the content of the tag with the specified id in the passed HTML document"""
|
||||
parser = IDParser(id)
|
||||
parser.loads(html)
|
||||
return parser.get_result()
|
||||
|
||||
|
||||
def preferredencoding():
|
||||
"""Get preferred encoding.
|
||||
|
||||
@ -241,6 +300,18 @@ def htmlentity_transform(matchobj):
|
||||
return (u'&%s;' % entity)
|
||||
|
||||
|
||||
def clean_html(html):
|
||||
"""Clean an HTML snippet into a readable string"""
|
||||
# Newline vs <br />
|
||||
html = html.replace('\n', ' ')
|
||||
html = re.sub('\s*<\s*br\s*/?\s*>\s*', '\n', html)
|
||||
# Strip html tags
|
||||
html = re.sub('<.*?>', '', html)
|
||||
# Replace html entities
|
||||
html = re.sub(ur'(?u)&(.+?);', htmlentity_transform, html)
|
||||
return html
|
||||
|
||||
|
||||
def sanitize_title(utitle):
|
||||
"""Sanitizes a video title so it could be used as part of a filename."""
|
||||
utitle = re.sub(ur'(?u)&(.+?);', htmlentity_transform, utitle)
|
||||
@ -1419,18 +1490,9 @@ class YoutubeIE(InfoExtractor):
|
||||
pass
|
||||
|
||||
# description
|
||||
try:
|
||||
lxml.etree
|
||||
except NameError:
|
||||
video_description = u'No description available.'
|
||||
mobj = re.search(r'<meta name="description" content="(.*?)">', video_webpage)
|
||||
if mobj is not None:
|
||||
video_description = mobj.group(1).decode('utf-8')
|
||||
else:
|
||||
html_parser = lxml.etree.HTMLParser(encoding='utf-8')
|
||||
vwebpage_doc = lxml.etree.parse(StringIO.StringIO(video_webpage), html_parser)
|
||||
video_description = u''.join(vwebpage_doc.xpath('id("eow-description")//text()'))
|
||||
# TODO use another parser
|
||||
video_description = get_element_by_id("eow-description", video_webpage)
|
||||
if video_description: video_description = clean_html(video_description.decode('utf8'))
|
||||
else: video_description = ''
|
||||
|
||||
# closed captions
|
||||
video_subtitles = None
|
||||
@ -2164,18 +2226,9 @@ class VimeoIE(InfoExtractor):
|
||||
video_thumbnail = config["video"]["thumbnail"]
|
||||
|
||||
# Extract video description
|
||||
try:
|
||||
lxml.etree
|
||||
except NameError:
|
||||
video_description = u'No description available.'
|
||||
mobj = re.search(r'<meta name="description" content="(.*?)" />', webpage, re.MULTILINE)
|
||||
if mobj is not None:
|
||||
video_description = mobj.group(1)
|
||||
else:
|
||||
html_parser = lxml.etree.HTMLParser()
|
||||
vwebpage_doc = lxml.etree.parse(StringIO.StringIO(webpage), html_parser)
|
||||
video_description = u''.join(vwebpage_doc.xpath('id("description")//text()')).strip()
|
||||
# TODO use another parser
|
||||
video_description = get_element_by_id("description", webpage)
|
||||
if video_description: video_description = clean_html(video_description.decode('utf8'))
|
||||
else: video_description = ''
|
||||
|
||||
# Extract upload date
|
||||
video_upload_date = u'NA'
|
||||
@ -3342,8 +3395,6 @@ class EscapistIE(InfoExtractor):
|
||||
self._downloader.to_screen(u'[escapist] %s: Downloading configuration' % showName)
|
||||
|
||||
def _real_extract(self, url):
|
||||
htmlParser = HTMLParser.HTMLParser()
|
||||
|
||||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
|
||||
@ -3359,11 +3410,11 @@ class EscapistIE(InfoExtractor):
|
||||
return
|
||||
|
||||
descMatch = re.search('<meta name="description" content="([^"]*)"', webPage)
|
||||
description = htmlParser.unescape(descMatch.group(1))
|
||||
description = unescapeHTML(descMatch.group(1))
|
||||
imgMatch = re.search('<meta property="og:image" content="([^"]*)"', webPage)
|
||||
imgUrl = htmlParser.unescape(imgMatch.group(1))
|
||||
imgUrl = unescapeHTML(imgMatch.group(1))
|
||||
playerUrlMatch = re.search('<meta property="og:video" content="([^"]*)"', webPage)
|
||||
playerUrl = htmlParser.unescape(playerUrlMatch.group(1))
|
||||
playerUrl = unescapeHTML(playerUrlMatch.group(1))
|
||||
configUrlMatch = re.search('config=(.*)$', playerUrl)
|
||||
configUrl = urllib2.unquote(configUrlMatch.group(1))
|
||||
|
||||
@ -3422,8 +3473,6 @@ class CollegeHumorIE(InfoExtractor):
|
||||
self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
|
||||
|
||||
def _real_extract(self, url):
|
||||
htmlParser = HTMLParser.HTMLParser()
|
||||
|
||||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
|
||||
@ -3494,8 +3543,6 @@ class XVideosIE(InfoExtractor):
|
||||
self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
|
||||
|
||||
def _real_extract(self, url):
|
||||
htmlParser = HTMLParser.HTMLParser()
|
||||
|
||||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
|
||||
@ -3584,8 +3631,6 @@ class SoundcloudIE(InfoExtractor):
|
||||
self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
|
||||
|
||||
def _real_extract(self, url):
|
||||
htmlParser = HTMLParser.HTMLParser()
|
||||
|
||||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
|
||||
@ -3673,8 +3718,6 @@ class InfoQIE(InfoExtractor):
|
||||
self._downloader.to_screen(u'[%s] %s: Extracting information' % (self.IE_NAME, video_id))
|
||||
|
||||
def _real_extract(self, url):
|
||||
htmlParser = HTMLParser.HTMLParser()
|
||||
|
||||
mobj = re.match(self._VALID_URL, url)
|
||||
if mobj is None:
|
||||
self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
|
||||
@ -3908,8 +3951,6 @@ class StanfordOpenClassroomIE(InfoExtractor):
|
||||
except UnavailableVideoError, err:
|
||||
self._downloader.trouble(u'\nERROR: unable to download video')
|
||||
elif mobj.group('course'): # A course page
|
||||
unescapeHTML = HTMLParser.HTMLParser().unescape
|
||||
|
||||
course = mobj.group('course')
|
||||
info = {
|
||||
'id': _simplify_title(course),
|
||||
@ -3946,8 +3987,6 @@ class StanfordOpenClassroomIE(InfoExtractor):
|
||||
assert entry['type'] == 'reference'
|
||||
self.extract(entry['url'])
|
||||
else: # Root page
|
||||
unescapeHTML = HTMLParser.HTMLParser().unescape
|
||||
|
||||
info = {
|
||||
'id': 'Stanford OpenClassroom',
|
||||
'type': 'playlist',
|
||||
|
||||
@ -67,11 +67,6 @@ try:
|
||||
except ImportError:
|
||||
from cgi import parse_qs
|
||||
|
||||
try:
|
||||
import lxml.etree
|
||||
except ImportError:
|
||||
pass # Handled below
|
||||
|
||||
try:
|
||||
import xml.etree.ElementTree
|
||||
except ImportError: # Python<2.5: Not officially supported, but let it slip
|
||||
@ -198,6 +193,69 @@ except ImportError: # Python <2.6, use trivialjson (https://github.com/phihag/tr
|
||||
raise ValueError('Extra data at end of input (index ' + str(i) + ' of ' + repr(s) + ': ' + repr(s[i:]) + ')')
|
||||
return res
|
||||
|
||||
|
||||
class IDParser(HTMLParser.HTMLParser):
|
||||
"""Modified HTMLParser that isolates a tag with the specified id"""
|
||||
def __init__(self, id):
|
||||
self.id = id
|
||||
self.result = None
|
||||
self.started = False
|
||||
self.depth = {}
|
||||
self.html = None
|
||||
self.watch_startpos = False
|
||||
HTMLParser.HTMLParser.__init__(self)
|
||||
|
||||
def loads(self, html):
|
||||
self.html = html
|
||||
self.feed(html)
|
||||
self.close()
|
||||
|
||||
def handle_starttag(self, tag, attrs):
|
||||
attrs = dict(attrs)
|
||||
if self.started:
|
||||
self.find_startpos(None)
|
||||
if 'id' in attrs and attrs['id'] == self.id:
|
||||
self.result = [tag]
|
||||
self.started = True
|
||||
self.watch_startpos = True
|
||||
if self.started:
|
||||
if not tag in self.depth: self.depth[tag] = 0
|
||||
self.depth[tag] += 1
|
||||
|
||||
def handle_endtag(self, tag):
|
||||
if self.started:
|
||||
if tag in self.depth: self.depth[tag] -= 1
|
||||
if self.depth[self.result[0]] == 0:
|
||||
self.started = False
|
||||
self.result.append(self.getpos())
|
||||
|
||||
def find_startpos(self, x):
|
||||
"""Needed to put the start position of the result (self.result[1])
|
||||
after the opening tag with the requested id"""
|
||||
if self.watch_startpos:
|
||||
self.watch_startpos = False
|
||||
self.result.append(self.getpos())
|
||||
handle_entityref = handle_charref = handle_data = handle_comment = \
|
||||
handle_decl = handle_pi = unknown_decl = find_startpos
|
||||
|
||||
def get_result(self):
|
||||
if self.result == None: return None
|
||||
if len(self.result) != 3: return None
|
||||
lines = self.html.split('\n')
|
||||
lines = lines[self.result[1][0]-1:self.result[2][0]]
|
||||
lines[0] = lines[0][self.result[1][1]:]
|
||||
if len(lines) == 1:
|
||||
lines[-1] = lines[-1][:self.result[2][1]-self.result[1][1]]
|
||||
lines[-1] = lines[-1][:self.result[2][1]]
|
||||
return '\n'.join(lines).strip()
|
||||
|
||||
def get_element_by_id(id, html):
|
||||
"""Return the content of the tag with the specified id in the passed HTML document"""
|
||||
parser = IDParser(id)
|
||||
parser.loads(html)
|
||||
return parser.get_result()
|
||||
|
||||
|
||||
def preferredencoding():
|
||||
"""Get preferred encoding.
|
||||
|
||||
@ -246,7 +304,7 @@ def clean_html(html):
|
||||
"""Clean an HTML snippet into a readable string"""
|
||||
# Newline vs <br />
|
||||
html = html.replace('\n', ' ')
|
||||
html = re.sub('<\s*br\s*/?\s*>', '\n', html)
|
||||
html = re.sub('\s*<\s*br\s*/?\s*>\s*', '\n', html)
|
||||
# Strip html tags
|
||||
html = re.sub('<.*?>', '', html)
|
||||
# Replace html entities
|
||||
@ -1432,18 +1490,9 @@ class YoutubeIE(InfoExtractor):
|
||||
pass
|
||||
|
||||
# description
|
||||
try:
|
||||
lxml.etree
|
||||
except NameError:
|
||||
video_description = u'No description available.'
|
||||
mobj = re.search(r'<meta name="description" content="(.*?)">', video_webpage)
|
||||
if mobj is not None:
|
||||
video_description = mobj.group(1).decode('utf-8')
|
||||
else:
|
||||
html_parser = lxml.etree.HTMLParser(encoding='utf-8')
|
||||
vwebpage_doc = lxml.etree.parse(StringIO.StringIO(video_webpage), html_parser)
|
||||
video_description = u''.join(vwebpage_doc.xpath('id("eow-description")//text()'))
|
||||
# TODO use another parser
|
||||
video_description = get_element_by_id("eow-description", video_webpage)
|
||||
if video_description: video_description = clean_html(video_description.decode('utf8'))
|
||||
else: video_description = ''
|
||||
|
||||
# closed captions
|
||||
video_subtitles = None
|
||||
@ -2177,18 +2226,9 @@ class VimeoIE(InfoExtractor):
|
||||
video_thumbnail = config["video"]["thumbnail"]
|
||||
|
||||
# Extract video description
|
||||
try:
|
||||
lxml.etree
|
||||
except NameError:
|
||||
video_description = u'No description available.'
|
||||
mobj = re.search(r'<meta name="description" content="(.*?)" />', webpage, re.MULTILINE)
|
||||
if mobj is not None:
|
||||
video_description = mobj.group(1)
|
||||
else:
|
||||
html_parser = lxml.etree.HTMLParser()
|
||||
vwebpage_doc = lxml.etree.parse(StringIO.StringIO(webpage), html_parser)
|
||||
video_description = u''.join(vwebpage_doc.xpath('id("description")//text()')).strip()
|
||||
# TODO use another parser
|
||||
video_description = get_element_by_id("description", webpage)
|
||||
if video_description: video_description = clean_html(video_description.decode('utf8'))
|
||||
else: video_description = ''
|
||||
|
||||
# Extract upload date
|
||||
video_upload_date = u'NA'
|
||||
|
||||
Loading…
Reference in New Issue
Block a user