import zlib
import urllib2
import email.utils
+import json
try:
import cStringIO as StringIO
except ImportError:
import StringIO
-
-try:
- import json
-except ImportError: # Python <2.6, use trivialjson (https://github.com/phihag/trivialjson):
- import trivialjson as json
std_headers = {
- 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:5.0.1) Gecko/20100101 Firefox/5.0.1',
+ 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0',
'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
'Accept-Encoding': 'gzip, deflate',
'Accept-Language': 'en-us,en;q=0.5',
}
+try:
+ compat_str = unicode # Python 2
+except NameError:
+ compat_str = str
+
def preferredencoding():
"""Get preferred encoding.
Returns the best encoding scheme for the system, based on
locale.getpreferredencoding() and some further tweaks.
"""
- def yield_preferredencoding():
- try:
- pref = locale.getpreferredencoding()
- u'TEST'.encode(pref)
- except:
- pref = 'UTF-8'
- while True:
- yield pref
- return yield_preferredencoding().next()
+ try:
+ pref = locale.getpreferredencoding()
+ u'TEST'.encode(pref)
+ except:
+ pref = 'UTF-8'
+
+ return pref
def htmlentity_transform(matchobj):
# Unknown entity in name, return its literal representation
return (u'&%s;' % entity)
+HTMLParser.locatestarttagend = re.compile(r"""<[a-zA-Z][-.a-zA-Z0-9:_]*(?:\s+(?:(?<=['"\s])[^\s/>][^\s/=>]*(?:\s*=+\s*(?:'[^']*'|"[^"]*"|(?!['"])[^>\s]*))?\s*)*)?\s*""", re.VERBOSE) # backport bugfix
+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
+ self.error_count = 0
+ HTMLParser.HTMLParser.__init__(self)
+
+ def error(self, message):
+ if self.error_count > 10 or self.started:
+ raise HTMLParser.HTMLParseError(message, self.getpos())
+ self.rawdata = '\n'.join(self.html.split('\n')[self.getpos()[0]:]) # skip one line
+ self.error_count += 1
+ self.goahead(1)
+
+ 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 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)
- return utitle.replace(unicode(os.sep), u'%')
+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_open(filename, open_mode):
timestamp = email.utils.mktime_tz(timetuple)
return timestamp
-def simplify_title(title):
- expr = re.compile(ur'[^\w\d_\-]+', flags=re.UNICODE)
- return expr.sub(u'_', title).strip(u'_')
+def sanitize_filename(s, restricted=False):
+ """Sanitizes a string so it could be used as part of a filename.
+ If restricted is set, use a stricter subset of allowed characters.
+ """
+ def replace_insane(char):
+ if char == '?' or ord(char) < 32 or ord(char) == 127:
+ return ''
+ elif char == '"':
+ return '' if restricted else '\''
+ elif char == ':':
+ return '_-' if restricted else ' -'
+ elif char in '\\/|*<>':
+ return '_'
+ if restricted and (char in '!&\'' or char.isspace()):
+ return '_'
+ if restricted and ord(char) > 127:
+ return '_'
+ return char
+
+ result = u''.join(map(replace_insane, s))
+ while '__' in result:
+ result = result.replace('__', '_')
+ result = result.strip('_')
+ # Common case of "Foreign band name - English song title"
+ if restricted and result.startswith('-_'):
+ result = result[2:]
+ if not result:
+ result = '_'
+ return result
def orderedSet(iterable):
""" Remove all duplicates from the input iterable """
"""
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):
"""
assert type(s) == type(u'')
- if sys.platform == 'win32' and sys.getwindowsversion().major >= 5:
+ if sys.platform == 'win32' and sys.getwindowsversion()[0] >= 5:
# Pass u'' directly to use Unicode APIs on Windows 2000 and up
# (Detecting Windows NT 4 is tricky because 'major >= 4' would
# match Windows 9x series as well. Besides, NT 4 is obsolete.)
self.expected = expected
+class Trouble(Exception):
+ """Trouble helper exception
+
+ This is an exception to be handled with
+ FileDownloader.trouble
+ """
+
class YoutubeDLHandler(urllib2.HTTPHandler):
"""Handler for HTTP requests and responses.
projects / youtube-dl / blobdiff