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Code Issues Releases Wiki Activity

[extractor/common] Modernize

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This commit is contained in:
Philipp Hagemeister 2014-08-28 01:04:43 +02:00
parent 27f774862d
commit f1a9d64eea
1 changed files with 39 additions and 37 deletions
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76
youtube_dl/extractor/common.py
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@ -1,3 +1,5 @@
from __future__ import unicode_literals
import base64 import base64
import hashlib import hashlib
import json import json
@ -202,17 +204,17 @@ class InfoExtractor(object):
self.report_download_webpage(video_id) self.report_download_webpage(video_id)
elif note is not False: elif note is not False:
if video_id is None: if video_id is None:
self.to_screen(u'%s' % (note,)) self.to_screen('%s' % (note,))
else: else:
self.to_screen(u'%s: %s' % (video_id, note)) self.to_screen('%s: %s' % (video_id, note))
try: try:
return self._downloader.urlopen(url_or_request) return self._downloader.urlopen(url_or_request)
except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
if errnote is False: if errnote is False:
return False return False
if errnote is None: if errnote is None:
errnote = u'Unable to download webpage' errnote = 'Unable to download webpage'
errmsg = u'%s: %s' % (errnote, compat_str(err)) errmsg = '%s: %s' % (errnote, compat_str(err))
if fatal: if fatal:
raise ExtractorError(errmsg, sys.exc_info()[2], cause=err) raise ExtractorError(errmsg, sys.exc_info()[2], cause=err)
else: else:
@ -249,7 +251,7 @@ class InfoExtractor(object):
url = url_or_request.get_full_url() url = url_or_request.get_full_url()
except AttributeError: except AttributeError:
url = url_or_request url = url_or_request
self.to_screen(u'Dumping request to ' + url) self.to_screen('Dumping request to ' + url)
dump = base64.b64encode(webpage_bytes).decode('ascii') dump = base64.b64encode(webpage_bytes).decode('ascii')
self._downloader.to_screen(dump) self._downloader.to_screen(dump)
if self._downloader.params.get('write_pages', False): if self._downloader.params.get('write_pages', False):
@ -259,11 +261,11 @@ class InfoExtractor(object):
url = url_or_request url = url_or_request
basen = '%s_%s' % (video_id, url) basen = '%s_%s' % (video_id, url)
if len(basen) > 240: if len(basen) > 240:
h = u'___' + hashlib.md5(basen.encode('utf-8')).hexdigest() h = '___' + hashlib.md5(basen.encode('utf-8')).hexdigest()
basen = basen[:240 - len(h)] + h basen = basen[:240 - len(h)] + h
raw_filename = basen + '.dump' raw_filename = basen + '.dump'
filename = sanitize_filename(raw_filename, restricted=True) filename = sanitize_filename(raw_filename, restricted=True)
self.to_screen(u'Saving request to ' + filename) self.to_screen('Saving request to ' + filename)
with open(filename, 'wb') as outf: with open(filename, 'wb') as outf:
outf.write(webpage_bytes) outf.write(webpage_bytes)
@ -272,14 +274,14 @@ class InfoExtractor(object):
except LookupError: except LookupError:
content = webpage_bytes.decode('utf-8', 'replace') content = webpage_bytes.decode('utf-8', 'replace')
if (u'<title>Access to this site is blocked</title>' in content and if ('<title>Access to this site is blocked</title>' in content and
u'Websense' in content[:512]): 'Websense' in content[:512]):
msg = u'Access to this webpage has been blocked by Websense filtering software in your network.' msg = 'Access to this webpage has been blocked by Websense filtering software in your network.'
blocked_iframe = self._html_search_regex( blocked_iframe = self._html_search_regex(
r'<iframe src="([^"]+)"', content, r'<iframe src="([^"]+)"', content,
u'Websense information URL', default=None) 'Websense information URL', default=None)
if blocked_iframe: if blocked_iframe:
msg += u' Visit %s for more details' % blocked_iframe msg += ' Visit %s for more details' % blocked_iframe
raise ExtractorError(msg, expected=True) raise ExtractorError(msg, expected=True)
return (content, urlh) return (content, urlh)
@ -294,7 +296,7 @@ class InfoExtractor(object):
return content return content
def _download_xml(self, url_or_request, video_id, def _download_xml(self, url_or_request, video_id,
note=u'Downloading XML', errnote=u'Unable to download XML', note='Downloading XML', errnote='Unable to download XML',
transform_source=None, fatal=True): transform_source=None, fatal=True):
"""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(
@ -306,8 +308,8 @@ class InfoExtractor(object):
return xml.etree.ElementTree.fromstring(xml_string.encode('utf-8')) return xml.etree.ElementTree.fromstring(xml_string.encode('utf-8'))
def _download_json(self, url_or_request, video_id, def _download_json(self, url_or_request, video_id,
note=u'Downloading JSON metadata', note='Downloading JSON metadata',
errnote=u'Unable to download JSON metadata', errnote='Unable to download JSON metadata',
transform_source=None, transform_source=None,
fatal=True): fatal=True):
json_string = self._download_webpage( json_string = self._download_webpage(
@ -322,29 +324,29 @@ class InfoExtractor(object):
raise ExtractorError('Failed to download JSON', cause=ve) raise ExtractorError('Failed to download JSON', cause=ve)
def report_warning(self, msg, video_id=None): def report_warning(self, msg, video_id=None):
idstr = u'' if video_id is None else u'%s: ' % video_id idstr = '' if video_id is None else '%s: ' % video_id
self._downloader.report_warning( self._downloader.report_warning(
u'[%s] %s%s' % (self.IE_NAME, idstr, msg)) '[%s] %s%s' % (self.IE_NAME, idstr, msg))
def to_screen(self, msg): def to_screen(self, msg):
"""Print msg to screen, prefixing it with '[ie_name]'""" """Print msg to screen, prefixing it with '[ie_name]'"""
self._downloader.to_screen(u'[%s] %s' % (self.IE_NAME, msg)) self._downloader.to_screen('[%s] %s' % (self.IE_NAME, msg))
def report_extraction(self, id_or_name): def report_extraction(self, id_or_name):
"""Report information extraction.""" """Report information extraction."""
self.to_screen(u'%s: Extracting information' % id_or_name) self.to_screen('%s: Extracting information' % id_or_name)
def report_download_webpage(self, video_id): def report_download_webpage(self, video_id):
"""Report webpage download.""" """Report webpage download."""
self.to_screen(u'%s: Downloading webpage' % video_id) self.to_screen('%s: Downloading webpage' % video_id)
def report_age_confirmation(self): def report_age_confirmation(self):
"""Report attempt to confirm age.""" """Report attempt to confirm age."""
self.to_screen(u'Confirming age') self.to_screen('Confirming age')
def report_login(self): def report_login(self):
"""Report attempt to log in.""" """Report attempt to log in."""
self.to_screen(u'Logging in') self.to_screen('Logging in')
#Methods for following #608 #Methods for following #608
@staticmethod @staticmethod
@ -384,7 +386,7 @@ class InfoExtractor(object):
break break
if os.name != 'nt' and sys.stderr.isatty(): if os.name != 'nt' and sys.stderr.isatty():
_name = u'\033[0;34m%s\033[0m' % name _name = '\033[0;34m%s\033[0m' % name
else: else:
_name = name _name = name
@ -394,10 +396,10 @@ class InfoExtractor(object):
elif default is not _NO_DEFAULT: elif default is not _NO_DEFAULT:
return default return default
elif fatal: elif fatal:
raise RegexNotFoundError(u'Unable to extract %s' % _name) raise RegexNotFoundError('Unable to extract %s' % _name)
else: else:
self._downloader.report_warning(u'unable to extract %s; ' self._downloader.report_warning('unable to extract %s; '
u'please report this issue on http://yt-dl.org/bug' % _name) 'please report this issue on http://yt-dl.org/bug' % _name)
return None return None
def _html_search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0): def _html_search_regex(self, pattern, string, name, default=_NO_DEFAULT, fatal=True, flags=0):
@ -436,7 +438,7 @@ class InfoExtractor(object):
else: else:
raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE) raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
except (IOError, netrc.NetrcParseError) as err: except (IOError, netrc.NetrcParseError) as err:
self._downloader.report_warning(u'parsing .netrc: %s' % compat_str(err)) self._downloader.report_warning('parsing .netrc: %s' % compat_str(err))
return (username, password) return (username, password)
@ -476,7 +478,7 @@ class InfoExtractor(object):
return unescapeHTML(escaped) return unescapeHTML(escaped)
def _og_search_thumbnail(self, html, **kargs): def _og_search_thumbnail(self, html, **kargs):
return self._og_search_property('image', html, u'thumbnail url', fatal=False, **kargs) return self._og_search_property('image', html, 'thumbnail url', fatal=False, **kargs)
def _og_search_description(self, html, **kargs): def _og_search_description(self, html, **kargs):
return self._og_search_property('description', html, fatal=False, **kargs) return self._og_search_property('description', html, fatal=False, **kargs)
@ -535,7 +537,7 @@ class InfoExtractor(object):
def _sort_formats(self, formats): def _sort_formats(self, formats):
if not formats: if not formats:
raise ExtractorError(u'No video formats found') raise ExtractorError('No video formats found')
def _formats_key(f): def _formats_key(f):
# TODO remove the following workaround # TODO remove the following workaround
@ -555,9 +557,9 @@ class InfoExtractor(object):
if f.get('vcodec') == 'none': # audio only if f.get('vcodec') == 'none': # audio only
if self._downloader.params.get('prefer_free_formats'): if self._downloader.params.get('prefer_free_formats'):
ORDER = [u'aac', u'mp3', u'm4a', u'webm', u'ogg', u'opus'] ORDER = ['aac', 'mp3', 'm4a', 'webm', 'ogg', 'opus']
else: else:
ORDER = [u'webm', u'opus', u'ogg', u'mp3', u'aac', u'm4a'] ORDER = ['webm', 'opus', 'ogg', 'mp3', 'aac', 'm4a']
ext_preference = 0 ext_preference = 0
try: try:
audio_ext_preference = ORDER.index(f['ext']) audio_ext_preference = ORDER.index(f['ext'])
@ -565,9 +567,9 @@ class InfoExtractor(object):
audio_ext_preference = -1 audio_ext_preference = -1
else: else:
if self._downloader.params.get('prefer_free_formats'): if self._downloader.params.get('prefer_free_formats'):
ORDER = [u'flv', u'mp4', u'webm'] ORDER = ['flv', 'mp4', 'webm']
else: else:
ORDER = [u'webm', u'flv', u'mp4'] ORDER = ['webm', 'flv', 'mp4']
try: try:
ext_preference = ORDER.index(f['ext']) ext_preference = ORDER.index(f['ext'])
except ValueError: except ValueError:
@ -609,7 +611,7 @@ class InfoExtractor(object):
def _sleep(self, timeout, video_id, msg_template=None): def _sleep(self, timeout, video_id, msg_template=None):
if msg_template is None: if msg_template is None:
msg_template = u'%(video_id)s: Waiting for %(timeout)s seconds' msg_template = '%(video_id)s: Waiting for %(timeout)s seconds'
msg = msg_template % {'video_id': video_id, 'timeout': timeout} msg = msg_template % {'video_id': video_id, 'timeout': timeout}
self.to_screen(msg) self.to_screen(msg)
time.sleep(timeout) time.sleep(timeout)
@ -704,7 +706,7 @@ class SearchInfoExtractor(InfoExtractor):
def _real_extract(self, query): def _real_extract(self, query):
mobj = re.match(self._make_valid_url(), query) mobj = re.match(self._make_valid_url(), query)
if mobj is None: if mobj is None:
raise ExtractorError(u'Invalid search query "%s"' % query) raise ExtractorError('Invalid search query "%s"' % query)
prefix = mobj.group('prefix') prefix = mobj.group('prefix')
query = mobj.group('query') query = mobj.group('query')
@ -715,9 +717,9 @@ class SearchInfoExtractor(InfoExtractor):
else: else:
n = int(prefix) n = int(prefix)
if n <= 0: if n <= 0:
raise ExtractorError(u'invalid download number %s for query "%s"' % (n, query)) raise ExtractorError('invalid download number %s for query "%s"' % (n, query))
elif n > self._MAX_RESULTS: elif n > self._MAX_RESULTS:
self._downloader.report_warning(u'%s returns max %i results (you requested %i)' % (self._SEARCH_KEY, self._MAX_RESULTS, n)) self._downloader.report_warning('%s returns max %i results (you requested %i)' % (self._SEARCH_KEY, self._MAX_RESULTS, n))
n = self._MAX_RESULTS n = self._MAX_RESULTS
return self._get_n_results(query, n) return self._get_n_results(query, n)