#!/usr/bin/env python # -*- coding: utf-8 -*- import datetime import email.utils import errno import gzip import io import json import locale import math import os import pipes import platform import re import ssl import socket import subprocess import sys import traceback import zlib try: 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 urllib.parse as compat_urlparse except ImportError: # Python 2 import urlparse as compat_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.error import HTTPError as compat_HTTPError except ImportError: # Python 2 from urllib2 import HTTPError as compat_HTTPError try: from urllib.request import urlretrieve as compat_urlretrieve except ImportError: # Python 2 from urllib import urlretrieve as compat_urlretrieve try: from subprocess import DEVNULL compat_subprocess_get_DEVNULL = lambda: DEVNULL except ImportError: compat_subprocess_get_DEVNULL = lambda: open(os.path.devnull, 'w') 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 def compat_ord(c): if type(c) is int: return c else: return ord(c) # This is not clearly defined otherwise compiled_regex_type = type(re.compile('')) std_headers = { 'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20100101 Firefox/10.0 (Chrome)', '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. """ 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) # In Python 2.x, json.dump expects a bytestream. # In Python 3.x, it writes to a character stream if sys.version_info < (3,0): def write_json_file(obj, fn): with open(fn, 'wb') as f: json.dump(obj, f) else: def write_json_file(obj, fn): with open(fn, 'w', encoding='utf-8') as f: json.dump(obj, f) if sys.version_info >= (2,7): def find_xpath_attr(node, xpath, key, val): """ Find the xpath xpath[@key=val] """ assert re.match(r'^[a-zA-Z]+$', key) assert re.match(r'^[a-zA-Z0-9@\s]*$', val) expr = xpath + u"[@%s='%s']" % (key, val) return node.find(expr) else: def find_xpath_attr(node, xpath, key, val): for f in node.findall(xpath): if f.attrib.get(key) == val: return f return None # On python2.6 the xml.etree.ElementTree.Element methods don't support # the namespace parameter def xpath_with_ns(path, ns_map): components = [c.split(':') for c in path.split('/')] replaced = [] for c in components: if len(c) == 1: replaced.append(c[0]) else: ns, tag = c replaced.append('{%s}%s' % (ns_map[ns], tag)) return '/'.join(replaced) def htmlentity_transform(matchobj): """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 BaseHTMLParser(compat_html_parser.HTMLParser): def __init(self): compat_html_parser.HTMLParser.__init__(self) self.html = None def loads(self, html): self.html = html self.feed(html) self.close() class AttrParser(BaseHTMLParser): """Modified HTMLParser that isolates a tag with the specified attribute""" def __init__(self, attribute, value): self.attribute = attribute self.value = value self.result = None self.started = False self.depth = {} self.watch_startpos = False self.error_count = 0 BaseHTMLParser.__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 handle_starttag(self, tag, attrs): attrs = dict(attrs) if self.started: self.find_startpos(None) if self.attribute in attrs and attrs[self.attribute] == self.value: 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() # Hack for https://github.com/rg3/youtube-dl/issues/662 if sys.version_info < (2, 7, 3): AttrParser.parse_endtag = (lambda self, i: i + len("</scr'+'ipt>") if self.rawdata[i:].startswith("</scr'+'ipt>") else compat_html_parser.HTMLParser.parse_endtag(self, i)) def get_element_by_id(id, html): """Return the content of the tag with the specified ID in the passed HTML document""" return get_element_by_attribute("id", id, html) def get_element_by_attribute(attribute, value, html): """Return the content of the tag with the specified attribute in the passed HTML document""" parser = AttrParser(attribute, value) try: parser.loads(html) except compat_html_parser.HTMLParseError: pass return parser.get_result() class MetaParser(BaseHTMLParser): """ Modified HTMLParser that isolates a meta tag with the specified name attribute. """ def __init__(self, name): BaseHTMLParser.__init__(self) self.name = name self.content = None self.result = None def handle_starttag(self, tag, attrs): if tag != 'meta': return attrs = dict(attrs) if attrs.get('name') == self.name: self.result = attrs.get('content') def get_result(self): return self.result def get_meta_content(name, html): """ Return the content attribute from the meta tag with the given name attribute. """ parser = MetaParser(name) 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 <br /> html = html.replace('\n', ' ') html = re.sub(r'\s*<\s*br\s*/?\s*>\s*', '\n', html) html = re.sub(r'<\s*/\s*p\s*>\s*<\s*p[^>]*>', '\n', html) # Strip html tags html = re.sub('<.*?>', '', html) # Replace html entities html = unescapeHTML(html) return html.strip() 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.buffer if hasattr(sys.stdout, 'buffer') else sys.stdout, filename) stream = open(encodeFilename(filename), open_mode) return (stream, filename) except (IOError, OSError) as err: if err.errno in (errno.EACCES,): raise # In case of error, try to remove win32 forbidden chars alt_filename = os.path.join( re.sub(u'[/<>:"\\|\\\\?\\*]', u'#', path_part) for path_part in os.path.split(filename) ) if alt_filename == filename: raise else: # An exception here should be caught in the caller stream = open(encodeFilename(filename), open_mode) return (stream, alt_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, 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 def unescapeHTML(s): """ @param s a string """ assert type(s) == type(u'') result = re.sub(u'(?u)&(.+?);', htmlentity_transform, s) return result def encodeFilename(s): """ @param s The name of the file """ 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: encoding = sys.getfilesystemencoding() if encoding is None: encoding = 'utf-8' return s.encode(encoding, 'ignore') def decodeOption(optval): if optval is None: return optval if isinstance(optval, bytes): optval = optval.decode(preferredencoding()) assert isinstance(optval, compat_str) return optval def formatSeconds(secs): if secs > 3600: return '%d:%02d:%02d' % (secs // 3600, (secs % 3600) // 60, secs % 60) elif secs > 60: return '%d:%02d' % (secs // 60, secs % 60) else: return '%d' % secs def make_HTTPS_handler(opts_no_check_certificate): if sys.version_info < (3, 2): import httplib class HTTPSConnectionV3(httplib.HTTPSConnection): def __init__(self, *args, **kwargs): httplib.HTTPSConnection.__init__(self, *args, **kwargs) def connect(self): sock = socket.create_connection((self.host, self.port), self.timeout) if getattr(self, '_tunnel_host', False): self.sock = sock self._tunnel() try: self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv3) except ssl.SSLError: self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file, ssl_version=ssl.PROTOCOL_SSLv23) class HTTPSHandlerV3(compat_urllib_request.HTTPSHandler): def https_open(self, req): return self.do_open(HTTPSConnectionV3, req) return HTTPSHandlerV3() else: context = ssl.SSLContext(ssl.PROTOCOL_SSLv3) context.verify_mode = (ssl.CERT_NONE if opts_no_check_certificate else ssl.CERT_REQUIRED) context.set_default_verify_paths() try: context.load_default_certs() except AttributeError: pass # Python < 3.4 return compat_urllib_request.HTTPSHandler(context=context) class ExtractorError(Exception): """Error during info extraction.""" def __init__(self, msg, tb=None, expected=False, cause=None): """ tb, if given, is the original traceback (so that it can be printed out). If expected is set, this is a normal error message and most likely not a bug in youtube-dl. """ if sys.exc_info()[0] in (compat_urllib_error.URLError, socket.timeout, UnavailableVideoError): expected = True if not expected: msg = msg + u'; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type youtube-dl -U to update.' super(ExtractorError, self).__init__(msg) self.traceback = tb self.exc_info = sys.exc_info() # preserve original exception self.cause = cause def format_traceback(self): if self.traceback is None: return None return u''.join(traceback.format_tb(self.traceback)) class RegexNotFoundError(ExtractorError): """Error when a regex didn't match""" pass class DownloadError(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. """ def __init__(self, msg, exc_info=None): """ exc_info, if given, is the original exception that caused the trouble (as returned by sys.exc_info()). """ super(DownloadError, self).__init__(msg) self.exc_info = exc_info class SameFileError(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 class PostProcessingError(Exception): """Post Processing exception. This exception may be raised by PostProcessor's .run() method to indicate an error in the postprocessing task. """ def __init__(self, msg): self.msg = msg class MaxDownloadsReached(Exception): """ --max-downloads limit has been reached. """ pass class UnavailableVideoError(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 class ContentTooShortError(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 def __init__(self, downloaded, expected): self.downloaded = downloaded self.expected = expected 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,v in std_headers.items(): if h in req.headers: del req.headers[h] req.add_header(h, v) if 'Youtubedl-no-compression' in req.headers: if 'Accept-encoding' in req.headers: del req.headers['Accept-encoding'] del req.headers['Youtubedl-no-compression'] if 'Youtubedl-user-agent' in req.headers: if 'User-agent' in req.headers: del req.headers['User-agent'] req.headers['User-agent'] = req.headers['Youtubedl-user-agent'] del req.headers['Youtubedl-user-agent'] return req def http_response(self, req, resp): old_resp = resp # gzip if resp.headers.get('Content-encoding', '') == 'gzip': content = resp.read() gz = gzip.GzipFile(fileobj=io.BytesIO(content), mode='rb') try: uncompressed = io.BytesIO(gz.read()) except IOError as original_ioerror: # There may be junk add the end of the file # See http://stackoverflow.com/q/4928560/35070 for details for i in range(1, 1024): try: gz = gzip.GzipFile(fileobj=io.BytesIO(content[:-i]), mode='rb') uncompressed = io.BytesIO(gz.read()) except IOError: continue break else: raise original_ioerror resp = self.addinfourl_wrapper(uncompressed, 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 def unified_strdate(date_str): """Return a string with the date in the format YYYYMMDD""" upload_date = None #Replace commas date_str = date_str.replace(',',' ') # %z (UTC offset) is only supported in python>=3.2 date_str = re.sub(r' (\+|-)[\d]*$', '', date_str) format_expressions = [ '%d %B %Y', '%B %d %Y', '%b %d %Y', '%Y-%m-%d', '%d/%m/%Y', '%Y/%m/%d %H:%M:%S', '%d.%m.%Y %H:%M', '%Y-%m-%dT%H:%M:%SZ', '%Y-%m-%dT%H:%M:%S.%fZ', '%Y-%m-%dT%H:%M:%S.%f0Z', '%Y-%m-%dT%H:%M:%S', ] for expression in format_expressions: try: upload_date = datetime.datetime.strptime(date_str, expression).strftime('%Y%m%d') except: pass return upload_date def determine_ext(url, default_ext=u'unknown_video'): guess = url.partition(u'?')[0].rpartition(u'.')[2] if re.match(r'^[A-Za-z0-9]+$', guess): return guess else: return default_ext def subtitles_filename(filename, sub_lang, sub_format): return filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format def date_from_str(date_str): """ Return a datetime object from a string in the format YYYYMMDD or (now|today)[+-][0-9](day|week|month|year)(s)?""" today = datetime.date.today() if date_str == 'now'or date_str == 'today': return today match = re.match('(now|today)(?P<sign>[+-])(?P<time>\d+)(?P<unit>day|week|month|year)(s)?', date_str) if match is not None: sign = match.group('sign') time = int(match.group('time')) if sign == '-': time = -time unit = match.group('unit') #A bad aproximation? if unit == 'month': unit = 'day' time *= 30 elif unit == 'year': unit = 'day' time *= 365 unit += 's' delta = datetime.timedelta(**{unit: time}) return today + delta return datetime.datetime.strptime(date_str, "%Y%m%d").date() class DateRange(object): """Represents a time interval between two dates""" def __init__(self, start=None, end=None): """start and end must be strings in the format accepted by date""" if start is not None: self.start = date_from_str(start) else: self.start = datetime.datetime.min.date() if end is not None: self.end = date_from_str(end) else: self.end = datetime.datetime.max.date() if self.start > self.end: raise ValueError('Date range: "%s" , the start date must be before the end date' % self) @classmethod def day(cls, day): """Returns a range that only contains the given day""" return cls(day,day) def __contains__(self, date): """Check if the date is in the range""" if not isinstance(date, datetime.date): date = date_from_str(date) return self.start <= date <= self.end def __str__(self): return '%s - %s' % ( self.start.isoformat(), self.end.isoformat()) def platform_name(): """ Returns the platform name as a compat_str """ res = platform.platform() if isinstance(res, bytes): res = res.decode(preferredencoding()) assert isinstance(res, compat_str) return res def write_string(s, out=None): if out is None: out = sys.stderr assert type(s) == type(u'') if ('b' in getattr(out, 'mode', '') or sys.version_info[0] < 3): # Python 2 lies about mode of sys.stderr s = s.encode(preferredencoding(), 'ignore') out.write(s) out.flush() def bytes_to_intlist(bs): if not bs: return [] if isinstance(bs[0], int): # Python 3 return list(bs) else: return [ord(c) for c in bs] def intlist_to_bytes(xs): if not xs: return b'' if isinstance(chr(0), bytes): # Python 2 return ''.join([chr(x) for x in xs]) else: return bytes(xs) def get_cachedir(params={}): cache_root = os.environ.get('XDG_CACHE_HOME', os.path.expanduser('~/.cache')) return params.get('cachedir', os.path.join(cache_root, 'youtube-dl')) # Cross-platform file locking if sys.platform == 'win32': import ctypes.wintypes import msvcrt class OVERLAPPED(ctypes.Structure): _fields_ = [ ('Internal', ctypes.wintypes.LPVOID), ('InternalHigh', ctypes.wintypes.LPVOID), ('Offset', ctypes.wintypes.DWORD), ('OffsetHigh', ctypes.wintypes.DWORD), ('hEvent', ctypes.wintypes.HANDLE), ] kernel32 = ctypes.windll.kernel32 LockFileEx = kernel32.LockFileEx LockFileEx.argtypes = [ ctypes.wintypes.HANDLE, # hFile ctypes.wintypes.DWORD, # dwFlags ctypes.wintypes.DWORD, # dwReserved ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh ctypes.POINTER(OVERLAPPED) # Overlapped ] LockFileEx.restype = ctypes.wintypes.BOOL UnlockFileEx = kernel32.UnlockFileEx UnlockFileEx.argtypes = [ ctypes.wintypes.HANDLE, # hFile ctypes.wintypes.DWORD, # dwReserved ctypes.wintypes.DWORD, # nNumberOfBytesToLockLow ctypes.wintypes.DWORD, # nNumberOfBytesToLockHigh ctypes.POINTER(OVERLAPPED) # Overlapped ] UnlockFileEx.restype = ctypes.wintypes.BOOL whole_low = 0xffffffff whole_high = 0x7fffffff def _lock_file(f, exclusive): overlapped = OVERLAPPED() overlapped.Offset = 0 overlapped.OffsetHigh = 0 overlapped.hEvent = 0 f._lock_file_overlapped_p = ctypes.pointer(overlapped) handle = msvcrt.get_osfhandle(f.fileno()) if not LockFileEx(handle, 0x2 if exclusive else 0x0, 0, whole_low, whole_high, f._lock_file_overlapped_p): raise OSError('Locking file failed: %r' % ctypes.FormatError()) def _unlock_file(f): assert f._lock_file_overlapped_p handle = msvcrt.get_osfhandle(f.fileno()) if not UnlockFileEx(handle, 0, whole_low, whole_high, f._lock_file_overlapped_p): raise OSError('Unlocking file failed: %r' % ctypes.FormatError()) else: import fcntl def _lock_file(f, exclusive): fcntl.lockf(f, fcntl.LOCK_EX if exclusive else fcntl.LOCK_SH) def _unlock_file(f): fcntl.lockf(f, fcntl.LOCK_UN) class locked_file(object): def __init__(self, filename, mode, encoding=None): assert mode in ['r', 'a', 'w'] self.f = io.open(filename, mode, encoding=encoding) self.mode = mode def __enter__(self): exclusive = self.mode != 'r' try: _lock_file(self.f, exclusive) except IOError: self.f.close() raise return self def __exit__(self, etype, value, traceback): try: _unlock_file(self.f) finally: self.f.close() def __iter__(self): return iter(self.f) def write(self, *args): return self.f.write(*args) def read(self, *args): return self.f.read(*args) def shell_quote(args): quoted_args = [] encoding = sys.getfilesystemencoding() if encoding is None: encoding = 'utf-8' for a in args: if isinstance(a, bytes): # We may get a filename encoded with 'encodeFilename' a = a.decode(encoding) quoted_args.append(pipes.quote(a)) return u' '.join(quoted_args) def takewhile_inclusive(pred, seq): """ Like itertools.takewhile, but include the latest evaluated element (the first element so that Not pred(e)) """ for e in seq: yield e if not pred(e): return def smuggle_url(url, data): """ Pass additional data in a URL for internal use. """ sdata = compat_urllib_parse.urlencode( {u'__youtubedl_smuggle': json.dumps(data)}) return url + u'#' + sdata def unsmuggle_url(smug_url): if not '#__youtubedl_smuggle' in smug_url: return smug_url, None url, _, sdata = smug_url.rpartition(u'#') jsond = compat_parse_qs(sdata)[u'__youtubedl_smuggle'][0] data = json.loads(jsond) return url, data def format_bytes(bytes): if bytes is None: return u'N/A' if type(bytes) is str: bytes = float(bytes) if bytes == 0.0: exponent = 0 else: exponent = int(math.log(bytes, 1024.0)) suffix = [u'B', u'KiB', u'MiB', u'GiB', u'TiB', u'PiB', u'EiB', u'ZiB', u'YiB'][exponent] converted = float(bytes) / float(1024 ** exponent) return u'%.2f%s' % (converted, suffix) def str_to_int(int_str): int_str = re.sub(r'[,\.]', u'', int_str) return int(int_str) def get_term_width(): columns = os.environ.get('COLUMNS', None) if columns: return int(columns) try: sp = subprocess.Popen( ['stty', 'size'], stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = sp.communicate() return int(out.split()[1]) except: pass return None def month_by_name(name): """ Return the number of a month by (locale-independently) English name """ ENGLISH_NAMES = [ u'Januar', u'February', u'March', u'April', u'May', u'June', u'July', u'August', u'September', u'October', u'November', u'December'] try: return ENGLISH_NAMES.index(name) + 1 except ValueError: return None