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-rw-r--r--youtube_dl/InfoExtractors.py61
-rw-r--r--youtube_dl/utils.py83
2 files changed, 92 insertions, 52 deletions
diff --git a/youtube_dl/InfoExtractors.py b/youtube_dl/InfoExtractors.py
index 4314f1402..d77154dcb 100644
--- a/youtube_dl/InfoExtractors.py
+++ b/youtube_dl/InfoExtractors.py
@@ -25,11 +25,6 @@ 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
warnings.warn('xml.etree.ElementTree support is missing. Consider upgrading to Python >= 2.5 if you get related errors.')
@@ -193,8 +188,8 @@ class YoutubeIE(InfoExtractor):
end = start + float(dur)
start = "%02i:%02i:%02i,%03i" %(start/(60*60), start/60%60, start%60, start%1*1000)
end = "%02i:%02i:%02i,%03i" %(end/(60*60), end/60%60, end%60, end%1*1000)
- caption = re.sub(ur'(?u)&(.+?);', htmlentity_transform, caption)
- caption = re.sub(ur'(?u)&(.+?);', htmlentity_transform, caption) # double cycle, inentional
+ caption = unescapeHTML(caption)
+ caption = unescapeHTML(caption) # double cycle, inentional
srt += str(n) + '\n'
srt += start + ' --> ' + end + '\n'
srt += caption + '\n\n'
@@ -364,18 +359,9 @@ 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
@@ -992,7 +978,7 @@ class YahooIE(InfoExtractor):
self._downloader.trouble(u'ERROR: Unable to extract media URL')
return
video_url = urllib.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
- video_url = re.sub(r'(?u)&(.+?);', htmlentity_transform, video_url)
+ video_url = unescapeHTML(video_url)
return [{
'id': video_id.decode('utf-8'),
@@ -1069,18 +1055,9 @@ 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'
@@ -2248,8 +2225,6 @@ 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)
@@ -2265,11 +2240,11 @@ 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))
@@ -2324,8 +2299,6 @@ 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)
@@ -2391,8 +2364,6 @@ 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)
@@ -2475,8 +2446,6 @@ 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)
@@ -2561,8 +2530,6 @@ 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)
@@ -2782,8 +2749,6 @@ class StanfordOpenClassroomIE(InfoExtractor):
info['format'] = info['ext']
return [info]
elif mobj.group('course'): # A course page
- unescapeHTML = HTMLParser.HTMLParser().unescape
-
course = mobj.group('course')
info = {
'id': simplify_title(course),
@@ -2822,8 +2787,6 @@ class StanfordOpenClassroomIE(InfoExtractor):
return results
else: # Root page
- unescapeHTML = HTMLParser.HTMLParser().unescape
-
info = {
'id': 'Stanford OpenClassroom',
'type': 'playlist',
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 737cca8e1..a19656000 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -74,9 +74,86 @@ def htmlentity_transform(matchobj):
return (u'&%s;' % entity)
+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)
+ try:
+ parser.loads(html)
+ except HTMLParser.HTMLParseError:
+ pass
+ return parser.get_result()
+
+
+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 = unescapeHTML(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)
+ utitle = unescapeHTML(utitle)
return utitle.replace(unicode(os.sep), u'%')
@@ -133,8 +210,8 @@ def unescapeHTML(s):
"""
assert type(s) == type(u'')
- htmlParser = HTMLParser.HTMLParser()
- return htmlParser.unescape(s)
+ result = re.sub(ur'(?u)&(.+?);', htmlentity_transform, s)
+ return result
def encodeFilename(s):
"""
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-09 21:47:52 +0000