X-Git-Url: https://git.rapsys.eu/.gitweb.cgi/youtubedl/blobdiff_plain/1169b048fab1ef2e5cbad85340928b8c69dd2758..674792cb64e32911631a5bbac2cddcfe25c8d68f:/youtube_dl/utils.py?ds=inline
diff --git a/youtube_dl/utils.py b/youtube_dl/utils.py
index 922e17e..44f9390 100644
--- a/youtube_dl/utils.py
+++ b/youtube_dl/utils.py
@@ -2,353 +2,510 @@
# -*- coding: utf-8 -*-
import gzip
-import htmlentitydefs
-import HTMLParser
+import io
import locale
import os
import re
import sys
import zlib
-import urllib2
import email.utils
import json
try:
- import cStringIO as StringIO
-except ImportError:
- import StringIO
+ import urllib.request as compat_urllib_request
+except ImportError: # Python 2
+ import urllib2 as compat_urllib_request
+
+try:
+ import urllib.error as compat_urllib_error
+except ImportError: # Python 2
+ import urllib2 as compat_urllib_error
+
+try:
+ import urllib.parse as compat_urllib_parse
+except ImportError: # Python 2
+ import urllib as compat_urllib_parse
+
+try:
+ from urllib.parse import urlparse as compat_urllib_parse_urlparse
+except ImportError: # Python 2
+ from urlparse import urlparse as compat_urllib_parse_urlparse
+
+try:
+ import http.cookiejar as compat_cookiejar
+except ImportError: # Python 2
+ import cookielib as compat_cookiejar
+
+try:
+ import html.entities as compat_html_entities
+except ImportError: # Python 2
+ import htmlentitydefs as compat_html_entities
+
+try:
+ import html.parser as compat_html_parser
+except ImportError: # Python 2
+ import HTMLParser as compat_html_parser
+
+try:
+ import http.client as compat_http_client
+except ImportError: # Python 2
+ import httplib as compat_http_client
+
+try:
+ from urllib.parse import parse_qs as compat_parse_qs
+except ImportError: # Python 2
+ # HACK: The following is the correct parse_qs implementation from cpython 3's stdlib.
+ # Python 2's version is apparently totally broken
+ def _unquote(string, encoding='utf-8', errors='replace'):
+ if string == '':
+ return string
+ res = string.split('%')
+ if len(res) == 1:
+ return string
+ if encoding is None:
+ encoding = 'utf-8'
+ if errors is None:
+ errors = 'replace'
+ # pct_sequence: contiguous sequence of percent-encoded bytes, decoded
+ pct_sequence = b''
+ string = res[0]
+ for item in res[1:]:
+ try:
+ if not item:
+ raise ValueError
+ pct_sequence += item[:2].decode('hex')
+ rest = item[2:]
+ if not rest:
+ # This segment was just a single percent-encoded character.
+ # May be part of a sequence of code units, so delay decoding.
+ # (Stored in pct_sequence).
+ continue
+ except ValueError:
+ rest = '%' + item
+ # Encountered non-percent-encoded characters. Flush the current
+ # pct_sequence.
+ string += pct_sequence.decode(encoding, errors) + rest
+ pct_sequence = b''
+ if pct_sequence:
+ # Flush the final pct_sequence
+ string += pct_sequence.decode(encoding, errors)
+ return string
+
+ def _parse_qsl(qs, keep_blank_values=False, strict_parsing=False,
+ encoding='utf-8', errors='replace'):
+ qs, _coerce_result = qs, unicode
+ pairs = [s2 for s1 in qs.split('&') for s2 in s1.split(';')]
+ r = []
+ for name_value in pairs:
+ if not name_value and not strict_parsing:
+ continue
+ nv = name_value.split('=', 1)
+ if len(nv) != 2:
+ if strict_parsing:
+ raise ValueError("bad query field: %r" % (name_value,))
+ # Handle case of a control-name with no equal sign
+ if keep_blank_values:
+ nv.append('')
+ else:
+ continue
+ if len(nv[1]) or keep_blank_values:
+ name = nv[0].replace('+', ' ')
+ name = _unquote(name, encoding=encoding, errors=errors)
+ name = _coerce_result(name)
+ value = nv[1].replace('+', ' ')
+ value = _unquote(value, encoding=encoding, errors=errors)
+ value = _coerce_result(value)
+ r.append((name, value))
+ return r
+
+ def compat_parse_qs(qs, keep_blank_values=False, strict_parsing=False,
+ encoding='utf-8', errors='replace'):
+ parsed_result = {}
+ pairs = _parse_qsl(qs, keep_blank_values, strict_parsing,
+ encoding=encoding, errors=errors)
+ for name, value in pairs:
+ if name in parsed_result:
+ parsed_result[name].append(value)
+ else:
+ parsed_result[name] = [value]
+ return parsed_result
+
+try:
+ compat_str = unicode # Python 2
+except NameError:
+ compat_str = str
+
+try:
+ compat_chr = unichr # Python 2
+except NameError:
+ compat_chr = chr
std_headers = {
- 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:5.0.1) Gecko/20100101 Firefox/5.0.1',
- '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',
+ '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',
}
-
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()
-
+ """Get preferred encoding.
+
+ Returns the best encoding scheme for the system, based on
+ locale.getpreferredencoding() and some further tweaks.
+ """
+ try:
+ pref = locale.getpreferredencoding()
+ u'TEST'.encode(pref)
+ except:
+ pref = 'UTF-8'
+
+ return pref
+
+if sys.version_info < (3,0):
+ def compat_print(s):
+ print(s.encode(preferredencoding(), 'xmlcharrefreplace'))
+else:
+ def compat_print(s):
+ assert type(s) == type(u'')
+ print(s)
def htmlentity_transform(matchobj):
- """Transforms an HTML entity to a Unicode character.
-
- This function receives a match object and is intended to be used with
- the re.sub() function.
- """
- entity = matchobj.group(1)
-
- # Known non-numeric HTML entity
- if entity in htmlentitydefs.name2codepoint:
- return unichr(htmlentitydefs.name2codepoint[entity])
-
- # Unicode character
- mobj = re.match(ur'(?u)#(x?\d+)', entity)
- if mobj is not None:
- numstr = mobj.group(1)
- if numstr.startswith(u'x'):
- base = 16
- numstr = u'0%s' % numstr
- else:
- base = 10
- return unichr(long(numstr, base))
-
- # 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):
- print >> sys.stderr, self.getpos()
- 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()
+ """Transforms an HTML entity to a character.
+
+ This function receives a match object and is intended to be used with
+ the re.sub() function.
+ """
+ entity = matchobj.group(1)
+
+ # Known non-numeric HTML entity
+ if entity in compat_html_entities.name2codepoint:
+ return compat_chr(compat_html_entities.name2codepoint[entity])
+
+ mobj = re.match(u'(?u)#(x?\\d+)', entity)
+ if mobj is not None:
+ numstr = mobj.group(1)
+ if numstr.startswith(u'x'):
+ base = 16
+ numstr = u'0%s' % numstr
+ else:
+ base = 10
+ return compat_chr(int(numstr, base))
+
+ # Unknown entity in name, return its literal representation
+ return (u'&%s;' % entity)
+
+compat_html_parser.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(compat_html_parser.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
+ compat_html_parser.HTMLParser.__init__(self)
+
+ def error(self, message):
+ if self.error_count > 10 or self.started:
+ raise compat_html_parser.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 is 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()
+ """Return the content of the tag with the specified id in the passed HTML document"""
+ parser = IDParser(id)
+ try:
+ parser.loads(html)
+ except compat_html_parser.HTMLParseError:
+ pass
+ return parser.get_result()
def clean_html(html):
- """Clean an HTML snippet into a readable string"""
- # Newline vs
- 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
+ """Clean an HTML snippet into a readable string"""
+ # Newline vs
+ 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):
- """Try to open the given filename, and slightly tweak it if this fails.
-
- Attempts to open the given filename. If this fails, it tries to change
- the filename slightly, step by step, until it's either able to open it
- or it fails and raises a final exception, like the standard open()
- function.
-
- It returns the tuple (stream, definitive_file_name).
- """
- try:
- if filename == u'-':
- if sys.platform == 'win32':
- import msvcrt
- msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
- return (sys.stdout, filename)
- stream = open(encodeFilename(filename), open_mode)
- return (stream, filename)
- except (IOError, OSError), err:
- # In case of error, try to remove win32 forbidden chars
- filename = re.sub(ur'[/<>:"\|\?\*]', u'#', filename)
-
- # An exception here should be caught in the caller
- stream = open(encodeFilename(filename), open_mode)
- return (stream, filename)
+ """Try to open the given filename, and slightly tweak it if this fails.
+
+ Attempts to open the given filename. If this fails, it tries to change
+ the filename slightly, step by step, until it's either able to open it
+ or it fails and raises a final exception, like the standard open()
+ function.
+
+ It returns the tuple (stream, definitive_file_name).
+ """
+ try:
+ if filename == u'-':
+ if sys.platform == 'win32':
+ import msvcrt
+ msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
+ return (sys.stdout, filename)
+ stream = open(encodeFilename(filename), open_mode)
+ return (stream, filename)
+ except (IOError, OSError) as err:
+ # In case of error, try to remove win32 forbidden chars
+ filename = re.sub(u'[/<>:"\\|\\\\?\\*]', u'#', filename)
+
+ # An exception here should be caught in the caller
+ stream = open(encodeFilename(filename), open_mode)
+ return (stream, filename)
def timeconvert(timestr):
- """Convert RFC 2822 defined time string into system timestamp"""
- timestamp = None
- timetuple = email.utils.parsedate_tz(timestr)
- if timetuple is not None:
- timestamp = email.utils.mktime_tz(timetuple)
- return timestamp
-
-def sanitize_filename(s):
- """Sanitizes a string so it could be used as part of a filename."""
- def replace_insane(char):
- if char in u' .\\/|?*<>:"' or ord(char) < 32:
- return '_'
- return char
- return u''.join(map(replace_insane, s)).strip('_')
+ """Convert RFC 2822 defined time string into system timestamp"""
+ timestamp = None
+ timetuple = email.utils.parsedate_tz(timestr)
+ if timetuple is not None:
+ timestamp = email.utils.mktime_tz(timetuple)
+ return timestamp
+
+def sanitize_filename(s, restricted=False, is_id=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.
+ Set is_id if this is not an arbitrary string, but an ID that should be kept if possible
+ """
+ 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))
+ if not is_id:
+ 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 """
- res = []
- for el in iterable:
- if el not in res:
- res.append(el)
- return res
+ """ Remove all duplicates from the input iterable """
+ res = []
+ for el in iterable:
+ if el not in res:
+ res.append(el)
+ return res
def unescapeHTML(s):
- """
- @param s a string (of type unicode)
- """
- assert type(s) == type(u'')
+ """
+ @param s a string
+ """
+ assert type(s) == type(u'')
- result = re.sub(ur'(?u)&(.+?);', htmlentity_transform, s)
- return result
+ result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s)
+ return result
def encodeFilename(s):
- """
- @param s The name of the file (of type unicode)
- """
+ """
+ @param s The name of the file
+ """
+
+ assert type(s) == type(u'')
- assert type(s) == type(u'')
+ # Python 3 has a Unicode API
+ if sys.version_info >= (3, 0):
+ return s
- 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.)
- return s
- else:
- return s.encode(sys.getfilesystemencoding(), 'ignore')
+ 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.)
+ return s
+ else:
+ return s.encode(sys.getfilesystemencoding(), 'ignore')
class DownloadError(Exception):
- """Download Error exception.
+ """Download Error exception.
- This exception may be thrown by FileDownloader objects if they are not
- configured to continue on errors. They will contain the appropriate
- error message.
- """
- pass
+ This exception may be thrown by FileDownloader objects if they are not
+ configured to continue on errors. They will contain the appropriate
+ error message.
+ """
+ pass
class SameFileError(Exception):
- """Same File exception.
+ """Same File exception.
- This exception will be thrown by FileDownloader objects if they detect
- multiple files would have to be downloaded to the same file on disk.
- """
- pass
+ This exception will be thrown by FileDownloader objects if they detect
+ multiple files would have to be downloaded to the same file on disk.
+ """
+ pass
class PostProcessingError(Exception):
- """Post Processing exception.
+ """Post Processing exception.
- This exception may be raised by PostProcessor's .run() method to
- indicate an error in the postprocessing task.
- """
- pass
+ This exception may be raised by PostProcessor's .run() method to
+ indicate an error in the postprocessing task.
+ """
+ pass
class MaxDownloadsReached(Exception):
- """ --max-downloads limit has been reached. """
- pass
+ """ --max-downloads limit has been reached. """
+ pass
class UnavailableVideoError(Exception):
- """Unavailable Format exception.
+ """Unavailable Format exception.
- This exception will be thrown when a video is requested
- in a format that is not available for that video.
- """
- pass
+ This exception will be thrown when a video is requested
+ in a format that is not available for that video.
+ """
+ pass
class ContentTooShortError(Exception):
- """Content Too Short exception.
+ """Content Too Short exception.
- This exception may be raised by FileDownloader objects when a file they
- download is too small for what the server announced first, indicating
- the connection was probably interrupted.
- """
- # Both in bytes
- downloaded = None
- expected = None
+ This exception may be raised by FileDownloader objects when a file they
+ download is too small for what the server announced first, indicating
+ the connection was probably interrupted.
+ """
+ # Both in bytes
+ downloaded = None
+ expected = None
- def __init__(self, downloaded, expected):
- self.downloaded = downloaded
- self.expected = expected
+ def __init__(self, downloaded, expected):
+ self.downloaded = downloaded
+ 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.
-
- This class, when installed with an OpenerDirector, automatically adds
- the standard headers to every HTTP request and handles gzipped and
- deflated responses from web servers. If compression is to be avoided in
- a particular request, the original request in the program code only has
- to include the HTTP header "Youtubedl-No-Compression", which will be
- removed before making the real request.
-
- Part of this code was copied from:
-
- http://techknack.net/python-urllib2-handlers/
-
- Andrew Rowls, the author of that code, agreed to release it to the
- public domain.
- """
-
- @staticmethod
- def deflate(data):
- try:
- return zlib.decompress(data, -zlib.MAX_WBITS)
- except zlib.error:
- return zlib.decompress(data)
-
- @staticmethod
- def addinfourl_wrapper(stream, headers, url, code):
- if hasattr(urllib2.addinfourl, 'getcode'):
- return urllib2.addinfourl(stream, headers, url, code)
- ret = urllib2.addinfourl(stream, headers, url)
- ret.code = code
- return ret
-
- def http_request(self, req):
- for h in std_headers:
- if h in req.headers:
- del req.headers[h]
- req.add_header(h, std_headers[h])
- if 'Youtubedl-no-compression' in req.headers:
- if 'Accept-encoding' in req.headers:
- del req.headers['Accept-encoding']
- del req.headers['Youtubedl-no-compression']
- return req
-
- def http_response(self, req, resp):
- old_resp = resp
- # gzip
- if resp.headers.get('Content-encoding', '') == 'gzip':
- gz = gzip.GzipFile(fileobj=StringIO.StringIO(resp.read()), mode='r')
- resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
- resp.msg = old_resp.msg
- # deflate
- if resp.headers.get('Content-encoding', '') == 'deflate':
- gz = StringIO.StringIO(self.deflate(resp.read()))
- resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
- resp.msg = old_resp.msg
- return resp
+ """Trouble helper exception
+
+ This is an exception to be handled with
+ FileDownloader.trouble
+ """
+
+class YoutubeDLHandler(compat_urllib_request.HTTPHandler):
+ """Handler for HTTP requests and responses.
+
+ This class, when installed with an OpenerDirector, automatically adds
+ the standard headers to every HTTP request and handles gzipped and
+ deflated responses from web servers. If compression is to be avoided in
+ a particular request, the original request in the program code only has
+ to include the HTTP header "Youtubedl-No-Compression", which will be
+ removed before making the real request.
+
+ Part of this code was copied from:
+
+ http://techknack.net/python-urllib2-handlers/
+
+ Andrew Rowls, the author of that code, agreed to release it to the
+ public domain.
+ """
+
+ @staticmethod
+ def deflate(data):
+ try:
+ return zlib.decompress(data, -zlib.MAX_WBITS)
+ except zlib.error:
+ return zlib.decompress(data)
+
+ @staticmethod
+ def addinfourl_wrapper(stream, headers, url, code):
+ if hasattr(compat_urllib_request.addinfourl, 'getcode'):
+ return compat_urllib_request.addinfourl(stream, headers, url, code)
+ ret = compat_urllib_request.addinfourl(stream, headers, url)
+ ret.code = code
+ return ret
+
+ def http_request(self, req):
+ for h in std_headers:
+ if h in req.headers:
+ del req.headers[h]
+ req.add_header(h, std_headers[h])
+ if 'Youtubedl-no-compression' in req.headers:
+ if 'Accept-encoding' in req.headers:
+ del req.headers['Accept-encoding']
+ del req.headers['Youtubedl-no-compression']
+ return req
+
+ def http_response(self, req, resp):
+ old_resp = resp
+ # gzip
+ if resp.headers.get('Content-encoding', '') == 'gzip':
+ gz = gzip.GzipFile(fileobj=io.BytesIO(resp.read()), mode='r')
+ resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+ resp.msg = old_resp.msg
+ # deflate
+ if resp.headers.get('Content-encoding', '') == 'deflate':
+ gz = io.BytesIO(self.deflate(resp.read()))
+ resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
+ resp.msg = old_resp.msg
+ return resp
+
+ https_request = http_request
+ https_response = http_response