youtube-dl

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 # Author: Ricardo Garcia Gonzalez
   4 # Author: Danny Colligan
   5 # Author: Benjamin Johnson
   6 # Author: Vasyl' Vavrychuk
   7 # Author: Witold Baryluk
   8 # Author: Paweł Paprota
   9 # Author: Gergely Imreh
  10 # License: Public domain code
  11 import cookielib
  12 import ctypes
  13 import datetime
  14 import email.utils
  15 import gzip
  16 import htmlentitydefs
  17 import httplib
  18 import locale
  19 import math
  20 import netrc
  21 import os
  22 import os.path
  23 import re
  24 import socket
  25 import string
  26 import StringIO
  27 import subprocess
  28 import sys
  29 import time
  30 import urllib
  31 import urllib2
  32 import zlib
  33
  34 # parse_qs was moved from the cgi module to the urlparse module recently.
  35 try:
  36         from urlparse import parse_qs
  37 except ImportError:
  38         from cgi import parse_qs
  39
  40 std_headers = {
  41         'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64; rv:2.0b11) Gecko/20100101 Firefox/4.0b11',
  42         'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
  43         'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
  44         'Accept-Encoding': 'gzip, deflate',
  45         'Accept-Language': 'en-us,en;q=0.5',
  46 }
  47
  48 simple_title_chars = string.ascii_letters.decode('ascii') + string.digits.decode('ascii')
  49
  50 def preferredencoding():
  51         """Get preferred encoding.
  52
  53         Returns the best encoding scheme for the system, based on
  54         locale.getpreferredencoding() and some further tweaks.
  55         """
  56         def yield_preferredencoding():
  57                 try:
  58                         pref = locale.getpreferredencoding()
  59                         u'TEST'.encode(pref)
  60                 except:
  61                         pref = 'UTF-8'
  62                 while True:
  63                         yield pref
  64         return yield_preferredencoding().next()
  65
  66 def htmlentity_transform(matchobj):
  67         """Transforms an HTML entity to a Unicode character.
  68
  69         This function receives a match object and is intended to be used with
  70         the re.sub() function.
  71         """
  72         entity = matchobj.group(1)
  73
  74         # Known non-numeric HTML entity
  75         if entity in htmlentitydefs.name2codepoint:
  76                 return unichr(htmlentitydefs.name2codepoint[entity])
  77
  78         # Unicode character
  79         mobj = re.match(ur'(?u)#(x?\d+)', entity)
  80         if mobj is not None:
  81                 numstr = mobj.group(1)
  82                 if numstr.startswith(u'x'):
  83                         base = 16
  84                         numstr = u'0%s' % numstr
  85                 else:
  86                         base = 10
  87                 return unichr(long(numstr, base))
  88
  89         # Unknown entity in name, return its literal representation
  90         return (u'&%s;' % entity)
  91
  92 def sanitize_title(utitle):
  93         """Sanitizes a video title so it could be used as part of a filename."""
  94         utitle = re.sub(ur'(?u)&(.+?);', htmlentity_transform, utitle)
  95         return utitle.replace(unicode(os.sep), u'%')
  96
  97 def sanitize_open(filename, open_mode):
  98         """Try to open the given filename, and slightly tweak it if this fails.
  99
 100         Attempts to open the given filename. If this fails, it tries to change
 101         the filename slightly, step by step, until it's either able to open it
 102         or it fails and raises a final exception, like the standard open()
 103         function.
 104
 105         It returns the tuple (stream, definitive_file_name).
 106         """
 107         try:
 108                 if filename == u'-':
 109                         if sys.platform == 'win32':
 110                                 import msvcrt
 111                                 msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY)
 112                         return (sys.stdout, filename)
 113                 stream = open(filename, open_mode)
 114                 return (stream, filename)
 115         except (IOError, OSError), err:
 116                 # In case of error, try to remove win32 forbidden chars
 117                 filename = re.sub(ur'[/<>:"\|\?\*]', u'#', filename)
 118
 119                 # An exception here should be caught in the caller
 120                 stream = open(filename, open_mode)
 121                 return (stream, filename)
 122
 123 def timeconvert(timestr):
 124     """Convert RFC 2822 defined time string into system timestamp"""
 125     timestamp = None
 126     timetuple = email.utils.parsedate_tz(timestr)
 127     if timetuple is not None:
 128         timestamp = email.utils.mktime_tz(timetuple)
 129     return timestamp
 130
 131 class DownloadError(Exception):
 132         """Download Error exception.
 133
 134         This exception may be thrown by FileDownloader objects if they are not
 135         configured to continue on errors. They will contain the appropriate
 136         error message.
 137         """
 138         pass
 139
 140 class SameFileError(Exception):
 141         """Same File exception.
 142
 143         This exception will be thrown by FileDownloader objects if they detect
 144         multiple files would have to be downloaded to the same file on disk.
 145         """
 146         pass
 147
 148 class PostProcessingError(Exception):
 149         """Post Processing exception.
 150
 151         This exception may be raised by PostProcessor's .run() method to
 152         indicate an error in the postprocessing task.
 153         """
 154         pass
 155
 156 class UnavailableVideoError(Exception):
 157         """Unavailable Format exception.
 158
 159         This exception will be thrown when a video is requested
 160         in a format that is not available for that video.
 161         """
 162         pass
 163
 164 class ContentTooShortError(Exception):
 165         """Content Too Short exception.
 166
 167         This exception may be raised by FileDownloader objects when a file they
 168         download is too small for what the server announced first, indicating
 169         the connection was probably interrupted.
 170         """
 171         # Both in bytes
 172         downloaded = None
 173         expected = None
 174
 175         def __init__(self, downloaded, expected):
 176                 self.downloaded = downloaded
 177                 self.expected = expected
 178
 179 class YoutubeDLHandler(urllib2.HTTPHandler):
 180         """Handler for HTTP requests and responses.
 181
 182         This class, when installed with an OpenerDirector, automatically adds
 183         the standard headers to every HTTP request and handles gzipped and
 184         deflated responses from web servers. If compression is to be avoided in
 185         a particular request, the original request in the program code only has
 186         to include the HTTP header "Youtubedl-No-Compression", which will be
 187         removed before making the real request.
 188
 189         Part of this code was copied from:
 190
 191           http://techknack.net/python-urllib2-handlers/
 192
 193         Andrew Rowls, the author of that code, agreed to release it to the
 194         public domain.
 195         """
 196
 197         @staticmethod
 198         def deflate(data):
 199                 try:
 200                         return zlib.decompress(data, -zlib.MAX_WBITS)
 201                 except zlib.error:
 202                         return zlib.decompress(data)
 203
 204         @staticmethod
 205         def addinfourl_wrapper(stream, headers, url, code):
 206                 if hasattr(urllib2.addinfourl, 'getcode'):
 207                         return urllib2.addinfourl(stream, headers, url, code)
 208                 ret = urllib2.addinfourl(stream, headers, url)
 209                 ret.code = code
 210                 return ret
 211
 212         def http_request(self, req):
 213                 for h in std_headers:
 214                         if h in req.headers:
 215                                 del req.headers[h]
 216                         req.add_header(h, std_headers[h])
 217                 if 'Youtubedl-no-compression' in req.headers:
 218                         if 'Accept-encoding' in req.headers:
 219                                 del req.headers['Accept-encoding']
 220                         del req.headers['Youtubedl-no-compression']
 221                 return req
 222
 223         def http_response(self, req, resp):
 224                 old_resp = resp
 225                 # gzip
 226                 if resp.headers.get('Content-encoding', '') == 'gzip':
 227                         gz = gzip.GzipFile(fileobj=StringIO.StringIO(resp.read()), mode='r')
 228                         resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
 229                         resp.msg = old_resp.msg
 230                 # deflate
 231                 if resp.headers.get('Content-encoding', '') == 'deflate':
 232                         gz = StringIO.StringIO(self.deflate(resp.read()))
 233                         resp = self.addinfourl_wrapper(gz, old_resp.headers, old_resp.url, old_resp.code)
 234                         resp.msg = old_resp.msg
 235                 return resp
 236
 237 class FileDownloader(object):
 238         """File Downloader class.
 239
 240         File downloader objects are the ones responsible of downloading the
 241         actual video file and writing it to disk if the user has requested
 242         it, among some other tasks. In most cases there should be one per
 243         program. As, given a video URL, the downloader doesn't know how to
 244         extract all the needed information, task that InfoExtractors do, it
 245         has to pass the URL to one of them.
 246
 247         For this, file downloader objects have a method that allows
 248         InfoExtractors to be registered in a given order. When it is passed
 249         a URL, the file downloader handles it to the first InfoExtractor it
 250         finds that reports being able to handle it. The InfoExtractor extracts
 251         all the information about the video or videos the URL refers to, and
 252         asks the FileDownloader to process the video information, possibly
 253         downloading the video.
 254
 255         File downloaders accept a lot of parameters. In order not to saturate
 256         the object constructor with arguments, it receives a dictionary of
 257         options instead. These options are available through the params
 258         attribute for the InfoExtractors to use. The FileDownloader also
 259         registers itself as the downloader in charge for the InfoExtractors
 260         that are added to it, so this is a "mutual registration".
 261
 262         Available options:
 263
 264         username:         Username for authentication purposes.
 265         password:         Password for authentication purposes.
 266         usenetrc:         Use netrc for authentication instead.
 267         quiet:            Do not print messages to stdout.
 268         forceurl:         Force printing final URL.
 269         forcetitle:       Force printing title.
 270         forcethumbnail:   Force printing thumbnail URL.
 271         forcedescription: Force printing description.
 272         forcefilename:    Force printing final filename.
 273         simulate:         Do not download the video files.
 274         format:           Video format code.
 275         format_limit:     Highest quality format to try.
 276         outtmpl:          Template for output names.
 277         ignoreerrors:     Do not stop on download errors.
 278         ratelimit:        Download speed limit, in bytes/sec.
 279         nooverwrites:     Prevent overwriting files.
 280         retries:          Number of times to retry for HTTP error 5xx
 281         continuedl:       Try to continue downloads if possible.
 282         noprogress:       Do not print the progress bar.
 283         playliststart:    Playlist item to start at.
 284         playlistend:      Playlist item to end at.
 285         logtostderr:      Log messages to stderr instead of stdout.
 286         consoletitle:     Display progress in console window's titlebar.
 287         nopart:           Do not use temporary .part files.
 288         updatetime:       Use the Last-modified header to set output file timestamps.
 289         """
 290
 291         params = None
 292         _ies = []
 293         _pps = []
 294         _download_retcode = None
 295         _num_downloads = None
 296         _screen_file = None
 297
 298         def __init__(self, params):
 299                 """Create a FileDownloader object with the given options."""
 300                 self._ies = []
 301                 self._pps = []
 302                 self._download_retcode = 0
 303                 self._num_downloads = 0
 304                 self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)]
 305                 self.params = params
 306
 307         @staticmethod
 308         def pmkdir(filename):
 309                 """Create directory components in filename. Similar to Unix "mkdir -p"."""
 310                 components = filename.split(os.sep)
 311                 aggregate = [os.sep.join(components[0:x]) for x in xrange(1, len(components))]
 312                 aggregate = ['%s%s' % (x, os.sep) for x in aggregate] # Finish names with separator
 313                 for dir in aggregate:
 314                         if not os.path.exists(dir):
 315                                 os.mkdir(dir)
 316
 317         @staticmethod
 318         def format_bytes(bytes):
 319                 if bytes is None:
 320                         return 'N/A'
 321                 if type(bytes) is str:
 322                         bytes = float(bytes)
 323                 if bytes == 0.0:
 324                         exponent = 0
 325                 else:
 326                         exponent = long(math.log(bytes, 1024.0))
 327                 suffix = 'bkMGTPEZY'[exponent]
 328                 converted = float(bytes) / float(1024**exponent)
 329                 return '%.2f%s' % (converted, suffix)
 330
 331         @staticmethod
 332         def calc_percent(byte_counter, data_len):
 333                 if data_len is None:
 334                         return '---.-%'
 335                 return '%6s' % ('%3.1f%%' % (float(byte_counter) / float(data_len) * 100.0))
 336
 337         @staticmethod
 338         def calc_eta(start, now, total, current):
 339                 if total is None:
 340                         return '--:--'
 341                 dif = now - start
 342                 if current == 0 or dif < 0.001: # One millisecond
 343                         return '--:--'
 344                 rate = float(current) / dif
 345                 eta = long((float(total) - float(current)) / rate)
 346                 (eta_mins, eta_secs) = divmod(eta, 60)
 347                 if eta_mins > 99:
 348                         return '--:--'
 349                 return '%02d:%02d' % (eta_mins, eta_secs)
 350
 351         @staticmethod
 352         def calc_speed(start, now, bytes):
 353                 dif = now - start
 354                 if bytes == 0 or dif < 0.001: # One millisecond
 355                         return '%10s' % '---b/s'
 356                 return '%10s' % ('%s/s' % FileDownloader.format_bytes(float(bytes) / dif))
 357
 358         @staticmethod
 359         def best_block_size(elapsed_time, bytes):
 360                 new_min = max(bytes / 2.0, 1.0)
 361                 new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB
 362                 if elapsed_time < 0.001:
 363                         return long(new_max)
 364                 rate = bytes / elapsed_time
 365                 if rate > new_max:
 366                         return long(new_max)
 367                 if rate < new_min:
 368                         return long(new_min)
 369                 return long(rate)
 370
 371         @staticmethod
 372         def parse_bytes(bytestr):
 373                 """Parse a string indicating a byte quantity into a long integer."""
 374                 matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr)
 375                 if matchobj is None:
 376                         return None
 377                 number = float(matchobj.group(1))
 378                 multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower())
 379                 return long(round(number * multiplier))
 380
 381         def add_info_extractor(self, ie):
 382                 """Add an InfoExtractor object to the end of the list."""
 383                 self._ies.append(ie)
 384                 ie.set_downloader(self)
 385
 386         def add_post_processor(self, pp):
 387                 """Add a PostProcessor object to the end of the chain."""
 388                 self._pps.append(pp)
 389                 pp.set_downloader(self)
 390
 391         def to_screen(self, message, skip_eol=False, ignore_encoding_errors=False):
 392                 """Print message to stdout if not in quiet mode."""
 393                 try:
 394                         if not self.params.get('quiet', False):
 395                                 terminator = [u'\n', u''][skip_eol]
 396                                 print >>self._screen_file, (u'%s%s' % (message, terminator)).encode(preferredencoding()),
 397                         self._screen_file.flush()
 398                 except (UnicodeEncodeError), err:
 399                         if not ignore_encoding_errors:
 400                                 raise
 401
 402         def to_stderr(self, message):
 403                 """Print message to stderr."""
 404                 print >>sys.stderr, message.encode(preferredencoding())
 405
 406         def to_cons_title(self, message):
 407                 """Set console/terminal window title to message."""
 408                 if not self.params.get('consoletitle', False):
 409                         return
 410                 if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow():
 411                         # c_wchar_p() might not be necessary if `message` is
 412                         # already of type unicode()
 413                         ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
 414                 elif 'TERM' in os.environ:
 415                         sys.stderr.write('\033]0;%s\007' % message.encode(preferredencoding()))
 416
 417         def fixed_template(self):
 418                 """Checks if the output template is fixed."""
 419                 return (re.search(ur'(?u)%\(.+?\)s', self.params['outtmpl']) is None)
 420
 421         def trouble(self, message=None):
 422                 """Determine action to take when a download problem appears.
 423
 424                 Depending on if the downloader has been configured to ignore
 425                 download errors or not, this method may throw an exception or
 426                 not when errors are found, after printing the message.
 427                 """
 428                 if message is not None:
 429                         self.to_stderr(message)
 430                 if not self.params.get('ignoreerrors', False):
 431                         raise DownloadError(message)
 432                 self._download_retcode = 1
 433
 434         def slow_down(self, start_time, byte_counter):
 435                 """Sleep if the download speed is over the rate limit."""
 436                 rate_limit = self.params.get('ratelimit', None)
 437                 if rate_limit is None or byte_counter == 0:
 438                         return
 439                 now = time.time()
 440                 elapsed = now - start_time
 441                 if elapsed <= 0.0:
 442                         return
 443                 speed = float(byte_counter) / elapsed
 444                 if speed > rate_limit:
 445                         time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit)
 446
 447         def temp_name(self, filename):
 448                 """Returns a temporary filename for the given filename."""
 449                 if self.params.get('nopart', False) or filename == u'-' or \
 450                                 (os.path.exists(filename) and not os.path.isfile(filename)):
 451                         return filename
 452                 return filename + u'.part'
 453
 454         def undo_temp_name(self, filename):
 455                 if filename.endswith(u'.part'):
 456                         return filename[:-len(u'.part')]
 457                 return filename
 458
 459         def try_rename(self, old_filename, new_filename):
 460                 try:
 461                         if old_filename == new_filename:
 462                                 return
 463                         os.rename(old_filename, new_filename)
 464                 except (IOError, OSError), err:
 465                         self.trouble(u'ERROR: unable to rename file')
 466
 467         def try_utime(self, filename, last_modified_hdr):
 468                 """Try to set the last-modified time of the given file."""
 469                 if last_modified_hdr is None:
 470                         return
 471                 if not os.path.isfile(filename):
 472                         return
 473                 timestr = last_modified_hdr
 474                 if timestr is None:
 475                         return
 476                 filetime = timeconvert(timestr)
 477                 if filetime is None:
 478                         return
 479                 try:
 480                         os.utime(filename,(time.time(), filetime))
 481                 except:
 482                         pass
 483
 484         def report_destination(self, filename):
 485                 """Report destination filename."""
 486                 self.to_screen(u'[download] Destination: %s' % filename, ignore_encoding_errors=True)
 487
 488         def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
 489                 """Report download progress."""
 490                 if self.params.get('noprogress', False):
 491                         return
 492                 self.to_screen(u'\r[download] %s of %s at %s ETA %s' %
 493                                 (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
 494                 self.to_cons_title(u'youtube-dl - %s of %s at %s ETA %s' %
 495                                 (percent_str.strip(), data_len_str.strip(), speed_str.strip(), eta_str.strip()))
 496
 497         def report_resuming_byte(self, resume_len):
 498                 """Report attempt to resume at given byte."""
 499                 self.to_screen(u'[download] Resuming download at byte %s' % resume_len)
 500
 501         def report_retry(self, count, retries):
 502                 """Report retry in case of HTTP error 5xx"""
 503                 self.to_screen(u'[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries))
 504
 505         def report_file_already_downloaded(self, file_name):
 506                 """Report file has already been fully downloaded."""
 507                 try:
 508                         self.to_screen(u'[download] %s has already been downloaded' % file_name)
 509                 except (UnicodeEncodeError), err:
 510                         self.to_screen(u'[download] The file has already been downloaded')
 511
 512         def report_unable_to_resume(self):
 513                 """Report it was impossible to resume download."""
 514                 self.to_screen(u'[download] Unable to resume')
 515
 516         def report_finish(self):
 517                 """Report download finished."""
 518                 if self.params.get('noprogress', False):
 519                         self.to_screen(u'[download] Download completed')
 520                 else:
 521                         self.to_screen(u'')
 522
 523         def increment_downloads(self):
 524                 """Increment the ordinal that assigns a number to each file."""
 525                 self._num_downloads += 1
 526
 527         def prepare_filename(self, info_dict):
 528                 """Generate the output filename."""
 529                 try:
 530                         template_dict = dict(info_dict)
 531                         template_dict['epoch'] = unicode(long(time.time()))
 532                         template_dict['autonumber'] = unicode('%05d' % self._num_downloads)
 533                         filename = self.params['outtmpl'] % template_dict
 534                         return filename
 535                 except (ValueError, KeyError), err:
 536                         self.trouble(u'ERROR: invalid system charset or erroneous output template')
 537                         return None
 538
 539         def process_info(self, info_dict):
 540                 """Process a single dictionary returned by an InfoExtractor."""
 541                 filename = self.prepare_filename(info_dict)
 542                 # Do nothing else if in simulate mode
 543                 if self.params.get('simulate', False):
 544                         # Forced printings
 545                         if self.params.get('forcetitle', False):
 546                                 print info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace')
 547                         if self.params.get('forceurl', False):
 548                                 print info_dict['url'].encode(preferredencoding(), 'xmlcharrefreplace')
 549                         if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict:
 550                                 print info_dict['thumbnail'].encode(preferredencoding(), 'xmlcharrefreplace')
 551                         if self.params.get('forcedescription', False) and 'description' in info_dict:
 552                                 print info_dict['description'].encode(preferredencoding(), 'xmlcharrefreplace')
 553                         if self.params.get('forcefilename', False) and filename is not None:
 554                                 print filename.encode(preferredencoding(), 'xmlcharrefreplace')
 555
 556                         return
 557
 558                 if filename is None:
 559                         return
 560                 if self.params.get('nooverwrites', False) and os.path.exists(filename):
 561                         self.to_stderr(u'WARNING: file exists and will be skipped')
 562                         return
 563
 564                 try:
 565                         self.pmkdir(filename)
 566                 except (OSError, IOError), err:
 567                         self.trouble(u'ERROR: unable to create directories: %s' % str(err))
 568                         return
 569
 570                 try:
 571                         success = self._do_download(filename, info_dict['url'].encode('utf-8'), info_dict.get('player_url', None))
 572                 except (OSError, IOError), err:
 573                         raise UnavailableVideoError
 574                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
 575                         self.trouble(u'ERROR: unable to download video data: %s' % str(err))
 576                         return
 577                 except (ContentTooShortError, ), err:
 578                         self.trouble(u'ERROR: content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
 579                         return
 580
 581                 if success:
 582                         try:
 583                                 self.post_process(filename, info_dict)
 584                         except (PostProcessingError), err:
 585                                 self.trouble(u'ERROR: postprocessing: %s' % str(err))
 586                                 return
 587
 588         def download(self, url_list):
 589                 """Download a given list of URLs."""
 590                 if len(url_list) > 1 and self.fixed_template():
 591                         raise SameFileError(self.params['outtmpl'])
 592
 593                 for url in url_list:
 594                         suitable_found = False
 595                         for ie in self._ies:
 596                                 # Go to next InfoExtractor if not suitable
 597                                 if not ie.suitable(url):
 598                                         continue
 599
 600                                 # Suitable InfoExtractor found
 601                                 suitable_found = True
 602
 603                                 # Extract information from URL and process it
 604                                 ie.extract(url)
 605
 606                                 # Suitable InfoExtractor had been found; go to next URL
 607                                 break
 608
 609                         if not suitable_found:
 610                                 self.trouble(u'ERROR: no suitable InfoExtractor: %s' % url)
 611
 612                 return self._download_retcode
 613
 614         def post_process(self, filename, ie_info):
 615                 """Run the postprocessing chain on the given file."""
 616                 info = dict(ie_info)
 617                 info['filepath'] = filename
 618                 for pp in self._pps:
 619                         info = pp.run(info)
 620                         if info is None:
 621                                 break
 622
 623         def _download_with_rtmpdump(self, filename, url, player_url):
 624                 self.report_destination(filename)
 625                 tmpfilename = self.temp_name(filename)
 626
 627                 # Check for rtmpdump first
 628                 try:
 629                         subprocess.call(['rtmpdump', '-h'], stdout=(file(os.path.devnull, 'w')), stderr=subprocess.STDOUT)
 630                 except (OSError, IOError):
 631                         self.trouble(u'ERROR: RTMP download detected but "rtmpdump" could not be run')
 632                         return False
 633
 634                 # Download using rtmpdump. rtmpdump returns exit code 2 when
 635                 # the connection was interrumpted and resuming appears to be
 636                 # possible. This is part of rtmpdump's normal usage, AFAIK.
 637                 basic_args = ['rtmpdump', '-q'] + [[], ['-W', player_url]][player_url is not None] + ['-r', url, '-o', tmpfilename]
 638                 retval = subprocess.call(basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)])
 639                 while retval == 2 or retval == 1:
 640                         prevsize = os.path.getsize(tmpfilename)
 641                         self.to_screen(u'\r[rtmpdump] %s bytes' % prevsize, skip_eol=True)
 642                         time.sleep(5.0) # This seems to be needed
 643                         retval = subprocess.call(basic_args + ['-e'] + [[], ['-k', '1']][retval == 1])
 644                         cursize = os.path.getsize(tmpfilename)
 645                         if prevsize == cursize and retval == 1:
 646                                 break
 647                 if retval == 0:
 648                         self.to_screen(u'\r[rtmpdump] %s bytes' % os.path.getsize(tmpfilename))
 649                         self.try_rename(tmpfilename, filename)
 650                         return True
 651                 else:
 652                         self.trouble(u'\nERROR: rtmpdump exited with code %d' % retval)
 653                         return False
 654
 655         def _do_download(self, filename, url, player_url):
 656                 # Check file already present
 657                 if self.params.get('continuedl', False) and os.path.isfile(filename) and not self.params.get('nopart', False):
 658                         self.report_file_already_downloaded(filename)
 659                         return True
 660
 661                 # Attempt to download using rtmpdump
 662                 if url.startswith('rtmp'):
 663                         return self._download_with_rtmpdump(filename, url, player_url)
 664
 665                 tmpfilename = self.temp_name(filename)
 666                 stream = None
 667                 open_mode = 'wb'
 668
 669                 # Do not include the Accept-Encoding header
 670                 headers = {'Youtubedl-no-compression': 'True'}
 671                 basic_request = urllib2.Request(url, None, headers)
 672                 request = urllib2.Request(url, None, headers)
 673
 674                 # Establish possible resume length
 675                 if os.path.isfile(tmpfilename):
 676                         resume_len = os.path.getsize(tmpfilename)
 677                 else:
 678                         resume_len = 0
 679
 680                 # Request parameters in case of being able to resume
 681                 if self.params.get('continuedl', False) and resume_len != 0:
 682                         self.report_resuming_byte(resume_len)
 683                         request.add_header('Range','bytes=%d-' % resume_len)
 684                         open_mode = 'ab'
 685
 686                 count = 0
 687                 retries = self.params.get('retries', 0)
 688                 while count <= retries:
 689                         # Establish connection
 690                         try:
 691                                 data = urllib2.urlopen(request)
 692                                 break
 693                         except (urllib2.HTTPError, ), err:
 694                                 if (err.code < 500 or err.code >= 600) and err.code != 416:
 695                                         # Unexpected HTTP error
 696                                         raise
 697                                 elif err.code == 416:
 698                                         # Unable to resume (requested range not satisfiable)
 699                                         try:
 700                                                 # Open the connection again without the range header
 701                                                 data = urllib2.urlopen(basic_request)
 702                                                 content_length = data.info()['Content-Length']
 703                                         except (urllib2.HTTPError, ), err:
 704                                                 if err.code < 500 or err.code >= 600:
 705                                                         raise
 706                                         else:
 707                                                 # Examine the reported length
 708                                                 if (content_length is not None and
 709                                                     (resume_len - 100 < long(content_length) < resume_len + 100)):
 710                                                         # The file had already been fully downloaded.
 711                                                         # Explanation to the above condition: in issue #175 it was revealed that
 712                                                         # YouTube sometimes adds or removes a few bytes from the end of the file,
 713                                                         # changing the file size slightly and causing problems for some users. So
 714                                                         # I decided to implement a suggested change and consider the file
 715                                                         # completely downloaded if the file size differs less than 100 bytes from
 716                                                         # the one in the hard drive.
 717                                                         self.report_file_already_downloaded(filename)
 718                                                         self.try_rename(tmpfilename, filename)
 719                                                         return True
 720                                                 else:
 721                                                         # The length does not match, we start the download over
 722                                                         self.report_unable_to_resume()
 723                                                         open_mode = 'wb'
 724                                                         break
 725                         # Retry
 726                         count += 1
 727                         if count <= retries:
 728                                 self.report_retry(count, retries)
 729
 730                 if count > retries:
 731                         self.trouble(u'ERROR: giving up after %s retries' % retries)
 732                         return False
 733
 734                 data_len = data.info().get('Content-length', None)
 735                 if data_len is not None:
 736                         data_len = long(data_len) + resume_len
 737                 data_len_str = self.format_bytes(data_len)
 738                 byte_counter = 0 + resume_len
 739                 block_size = 1024
 740                 start = time.time()
 741                 while True:
 742                         # Download and write
 743                         before = time.time()
 744                         data_block = data.read(block_size)
 745                         after = time.time()
 746                         if len(data_block) == 0:
 747                                 break
 748                         byte_counter += len(data_block)
 749
 750                         # Open file just in time
 751                         if stream is None:
 752                                 try:
 753                                         (stream, tmpfilename) = sanitize_open(tmpfilename, open_mode)
 754                                         filename = self.undo_temp_name(tmpfilename)
 755                                         self.report_destination(filename)
 756                                 except (OSError, IOError), err:
 757                                         self.trouble(u'ERROR: unable to open for writing: %s' % str(err))
 758                                         return False
 759                         try:
 760                                 stream.write(data_block)
 761                         except (IOError, OSError), err:
 762                                 self.trouble(u'\nERROR: unable to write data: %s' % str(err))
 763                                 return False
 764                         block_size = self.best_block_size(after - before, len(data_block))
 765
 766                         # Progress message
 767                         percent_str = self.calc_percent(byte_counter, data_len)
 768                         eta_str = self.calc_eta(start, time.time(), data_len - resume_len, byte_counter - resume_len)
 769                         speed_str = self.calc_speed(start, time.time(), byte_counter - resume_len)
 770                         self.report_progress(percent_str, data_len_str, speed_str, eta_str)
 771
 772                         # Apply rate limit
 773                         self.slow_down(start, byte_counter - resume_len)
 774
 775                 stream.close()
 776                 self.report_finish()
 777                 if data_len is not None and byte_counter != data_len:
 778                         raise ContentTooShortError(byte_counter, long(data_len))
 779                 self.try_rename(tmpfilename, filename)
 780
 781                 # Update file modification time
 782                 if self.params.get('updatetime', True):
 783                         self.try_utime(filename, data.info().get('last-modified', None))
 784
 785                 return True
 786
 787 class InfoExtractor(object):
 788         """Information Extractor class.
 789
 790         Information extractors are the classes that, given a URL, extract
 791         information from the video (or videos) the URL refers to. This
 792         information includes the real video URL, the video title and simplified
 793         title, author and others. The information is stored in a dictionary
 794         which is then passed to the FileDownloader. The FileDownloader
 795         processes this information possibly downloading the video to the file
 796         system, among other possible outcomes. The dictionaries must include
 797         the following fields:
 798
 799         id:             Video identifier.
 800         url:            Final video URL.
 801         uploader:       Nickname of the video uploader.
 802         title:          Literal title.
 803         stitle:         Simplified title.
 804         ext:            Video filename extension.
 805         format:         Video format.
 806         player_url:     SWF Player URL (may be None).
 807
 808         The following fields are optional. Their primary purpose is to allow
 809         youtube-dl to serve as the backend for a video search function, such
 810         as the one in youtube2mp3.  They are only used when their respective
 811         forced printing functions are called:
 812
 813         thumbnail:      Full URL to a video thumbnail image.
 814         description:    One-line video description.
 815
 816         Subclasses of this one should re-define the _real_initialize() and
 817         _real_extract() methods, as well as the suitable() static method.
 818         Probably, they should also be instantiated and added to the main
 819         downloader.
 820         """
 821
 822         _ready = False
 823         _downloader = None
 824
 825         def __init__(self, downloader=None):
 826                 """Constructor. Receives an optional downloader."""
 827                 self._ready = False
 828                 self.set_downloader(downloader)
 829
 830         @staticmethod
 831         def suitable(url):
 832                 """Receives a URL and returns True if suitable for this IE."""
 833                 return False
 834
 835         def initialize(self):
 836                 """Initializes an instance (authentication, etc)."""
 837                 if not self._ready:
 838                         self._real_initialize()
 839                         self._ready = True
 840
 841         def extract(self, url):
 842                 """Extracts URL information and returns it in list of dicts."""
 843                 self.initialize()
 844                 return self._real_extract(url)
 845
 846         def set_downloader(self, downloader):
 847                 """Sets the downloader for this IE."""
 848                 self._downloader = downloader
 849
 850         def _real_initialize(self):
 851                 """Real initialization process. Redefine in subclasses."""
 852                 pass
 853
 854         def _real_extract(self, url):
 855                 """Real extraction process. Redefine in subclasses."""
 856                 pass
 857
 858 class YoutubeIE(InfoExtractor):
 859         """Information extractor for youtube.com."""
 860
 861         _VALID_URL = r'^((?:https?://)?(?:youtu\.be/|(?:\w+\.)?youtube(?:-nocookie)?\.com/)(?:(?:(?:v|embed)/)|(?:(?:watch(?:_popup)?(?:\.php)?)?(?:\?|#!?)(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$'
 862         _LANG_URL = r'http://www.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1'
 863         _LOGIN_URL = 'https://www.youtube.com/signup?next=/&gl=US&hl=en'
 864         _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en'
 865         _NETRC_MACHINE = 'youtube'
 866         # Listed in order of quality
 867         _available_formats = ['38', '37', '22', '45', '35', '34', '43', '18', '6', '5', '17', '13']
 868         _video_extensions = {
 869                 '13': '3gp',
 870                 '17': 'mp4',
 871                 '18': 'mp4',
 872                 '22': 'mp4',
 873                 '37': 'mp4',
 874                 '38': 'video', # You actually don't know if this will be MOV, AVI or whatever
 875                 '43': 'webm',
 876                 '45': 'webm',
 877         }
 878
 879         @staticmethod
 880         def suitable(url):
 881                 return (re.match(YoutubeIE._VALID_URL, url) is not None)
 882
 883         def report_lang(self):
 884                 """Report attempt to set language."""
 885                 self._downloader.to_screen(u'[youtube] Setting language')
 886
 887         def report_login(self):
 888                 """Report attempt to log in."""
 889                 self._downloader.to_screen(u'[youtube] Logging in')
 890
 891         def report_age_confirmation(self):
 892                 """Report attempt to confirm age."""
 893                 self._downloader.to_screen(u'[youtube] Confirming age')
 894
 895         def report_video_webpage_download(self, video_id):
 896                 """Report attempt to download video webpage."""
 897                 self._downloader.to_screen(u'[youtube] %s: Downloading video webpage' % video_id)
 898
 899         def report_video_info_webpage_download(self, video_id):
 900                 """Report attempt to download video info webpage."""
 901                 self._downloader.to_screen(u'[youtube] %s: Downloading video info webpage' % video_id)
 902
 903         def report_information_extraction(self, video_id):
 904                 """Report attempt to extract video information."""
 905                 self._downloader.to_screen(u'[youtube] %s: Extracting video information' % video_id)
 906
 907         def report_unavailable_format(self, video_id, format):
 908                 """Report extracted video URL."""
 909                 self._downloader.to_screen(u'[youtube] %s: Format %s not available' % (video_id, format))
 910
 911         def report_rtmp_download(self):
 912                 """Indicate the download will use the RTMP protocol."""
 913                 self._downloader.to_screen(u'[youtube] RTMP download detected')
 914
 915         def _real_initialize(self):
 916                 if self._downloader is None:
 917                         return
 918
 919                 username = None
 920                 password = None
 921                 downloader_params = self._downloader.params
 922
 923                 # Attempt to use provided username and password or .netrc data
 924                 if downloader_params.get('username', None) is not None:
 925                         username = downloader_params['username']
 926                         password = downloader_params['password']
 927                 elif downloader_params.get('usenetrc', False):
 928                         try:
 929                                 info = netrc.netrc().authenticators(self._NETRC_MACHINE)
 930                                 if info is not None:
 931                                         username = info[0]
 932                                         password = info[2]
 933                                 else:
 934                                         raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
 935                         except (IOError, netrc.NetrcParseError), err:
 936                                 self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
 937                                 return
 938
 939                 # Set language
 940                 request = urllib2.Request(self._LANG_URL)
 941                 try:
 942                         self.report_lang()
 943                         urllib2.urlopen(request).read()
 944                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
 945                         self._downloader.to_stderr(u'WARNING: unable to set language: %s' % str(err))
 946                         return
 947
 948                 # No authentication to be performed
 949                 if username is None:
 950                         return
 951
 952                 # Log in
 953                 login_form = {
 954                                 'current_form': 'loginForm',
 955                                 'next':         '/',
 956                                 'action_login': 'Log In',
 957                                 'username':     username,
 958                                 'password':     password,
 959                                 }
 960                 request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
 961                 try:
 962                         self.report_login()
 963                         login_results = urllib2.urlopen(request).read()
 964                         if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None:
 965                                 self._downloader.to_stderr(u'WARNING: unable to log in: bad username or password')
 966                                 return
 967                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
 968                         self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
 969                         return
 970
 971                 # Confirm age
 972                 age_form = {
 973                                 'next_url':             '/',
 974                                 'action_confirm':       'Confirm',
 975                                 }
 976                 request = urllib2.Request(self._AGE_URL, urllib.urlencode(age_form))
 977                 try:
 978                         self.report_age_confirmation()
 979                         age_results = urllib2.urlopen(request).read()
 980                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
 981                         self._downloader.trouble(u'ERROR: unable to confirm age: %s' % str(err))
 982                         return
 983
 984         def _real_extract(self, url):
 985                 # Extract video id from URL
 986                 mobj = re.match(self._VALID_URL, url)
 987                 if mobj is None:
 988                         self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
 989                         return
 990                 video_id = mobj.group(2)
 991
 992                 # Get video webpage
 993                 self.report_video_webpage_download(video_id)
 994                 request = urllib2.Request('http://www.youtube.com/watch?v=%s&gl=US&hl=en&amp;has_verified=1' % video_id)
 995                 try:
 996                         video_webpage = urllib2.urlopen(request).read()
 997                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
 998                         self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
 999                         return
1000
1001                 # Attempt to extract SWF player URL
1002                 mobj = re.search(r'swfConfig.*?"(http:\\/\\/.*?watch.*?-.*?\.swf)"', video_webpage)
1003                 if mobj is not None:
1004                         player_url = re.sub(r'\\(.)', r'\1', mobj.group(1))
1005                 else:
1006                         player_url = None
1007
1008                 # Get video info
1009                 self.report_video_info_webpage_download(video_id)
1010                 for el_type in ['&el=embedded', '&el=detailpage', '&el=vevo', '']:
1011                         video_info_url = ('http://www.youtube.com/get_video_info?&video_id=%s%s&ps=default&eurl=&gl=US&hl=en'
1012                                            % (video_id, el_type))
1013                         request = urllib2.Request(video_info_url)
1014                         try:
1015                                 video_info_webpage = urllib2.urlopen(request).read()
1016                                 video_info = parse_qs(video_info_webpage)
1017                                 if 'token' in video_info:
1018                                         break
1019                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1020                                 self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err))
1021                                 return
1022                 if 'token' not in video_info:
1023                         if 'reason' in video_info:
1024                                 self._downloader.trouble(u'ERROR: YouTube said: %s' % video_info['reason'][0].decode('utf-8'))
1025                         else:
1026                                 self._downloader.trouble(u'ERROR: "token" parameter not in video info for unknown reason')
1027                         return
1028
1029                 # Start extracting information
1030                 self.report_information_extraction(video_id)
1031
1032                 # uploader
1033                 if 'author' not in video_info:
1034                         self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
1035                         return
1036                 video_uploader = urllib.unquote_plus(video_info['author'][0])
1037
1038                 # title
1039                 if 'title' not in video_info:
1040                         self._downloader.trouble(u'ERROR: unable to extract video title')
1041                         return
1042                 video_title = urllib.unquote_plus(video_info['title'][0])
1043                 video_title = video_title.decode('utf-8')
1044                 video_title = sanitize_title(video_title)
1045
1046                 # simplified title
1047                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1048                 simple_title = simple_title.strip(ur'_')
1049
1050                 # thumbnail image
1051                 if 'thumbnail_url' not in video_info:
1052                         self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
1053                         video_thumbnail = ''
1054                 else:   # don't panic if we can't find it
1055                         video_thumbnail = urllib.unquote_plus(video_info['thumbnail_url'][0])
1056
1057                 # upload date
1058                 upload_date = u'NA'
1059                 mobj = re.search(r'id="eow-date".*?>(.*?)</span>', video_webpage, re.DOTALL)
1060                 if mobj is not None:
1061                         upload_date = ' '.join(re.sub(r'[/,-]', r' ', mobj.group(1)).split())
1062                         format_expressions = ['%d %B %Y', '%B %d %Y', '%b %d %Y']
1063                         for expression in format_expressions:
1064                                 try:
1065                                         upload_date = datetime.datetime.strptime(upload_date, expression).strftime('%Y%m%d')
1066                                 except:
1067                                         pass
1068
1069                 # description
1070                 video_description = 'No description available.'
1071                 if self._downloader.params.get('forcedescription', False):
1072                         mobj = re.search(r'<meta name="description" content="(.*)"(?:\s*/)?>', video_webpage)
1073                         if mobj is not None:
1074                                 video_description = mobj.group(1)
1075
1076                 # token
1077                 video_token = urllib.unquote_plus(video_info['token'][0])
1078
1079                 # Decide which formats to download
1080                 req_format = self._downloader.params.get('format', None)
1081
1082                 if 'fmt_url_map' in video_info:
1083                         url_map = dict(tuple(pair.split('|')) for pair in video_info['fmt_url_map'][0].split(','))
1084                         format_limit = self._downloader.params.get('format_limit', None)
1085                         if format_limit is not None and format_limit in self._available_formats:
1086                                 format_list = self._available_formats[self._available_formats.index(format_limit):]
1087                         else:
1088                                 format_list = self._available_formats
1089                         existing_formats = [x for x in format_list if x in url_map]
1090                         if len(existing_formats) == 0:
1091                                 self._downloader.trouble(u'ERROR: no known formats available for video')
1092                                 return
1093                         if req_format is None:
1094                                 video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
1095                         elif req_format == '-1':
1096                                 video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
1097                         else:
1098                                 # Specific format
1099                                 if req_format not in url_map:
1100                                         self._downloader.trouble(u'ERROR: requested format not available')
1101                                         return
1102                                 video_url_list = [(req_format, url_map[req_format])] # Specific format
1103
1104                 elif 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1105                         self.report_rtmp_download()
1106                         video_url_list = [(None, video_info['conn'][0])]
1107
1108                 else:
1109                         self._downloader.trouble(u'ERROR: no fmt_url_map or conn information found in video info')
1110                         return
1111
1112                 for format_param, video_real_url in video_url_list:
1113                         # At this point we have a new video
1114                         self._downloader.increment_downloads()
1115
1116                         # Extension
1117                         video_extension = self._video_extensions.get(format_param, 'flv')
1118
1119                         # Find the video URL in fmt_url_map or conn paramters
1120                         try:
1121                                 # Process video information
1122                                 self._downloader.process_info({
1123                                         'id':           video_id.decode('utf-8'),
1124                                         'url':          video_real_url.decode('utf-8'),
1125                                         'uploader':     video_uploader.decode('utf-8'),
1126                                         'upload_date':  upload_date,
1127                                         'title':        video_title,
1128                                         'stitle':       simple_title,
1129                                         'ext':          video_extension.decode('utf-8'),
1130                                         'format':       (format_param is None and u'NA' or format_param.decode('utf-8')),
1131                                         'thumbnail':    video_thumbnail.decode('utf-8'),
1132                                         'description':  video_description.decode('utf-8'),
1133                                         'player_url':   player_url,
1134                                 })
1135                         except UnavailableVideoError, err:
1136                                 self._downloader.trouble(u'\nERROR: unable to download video')
1137
1138
1139 class MetacafeIE(InfoExtractor):
1140         """Information Extractor for metacafe.com."""
1141
1142         _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
1143         _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
1144         _FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
1145         _youtube_ie = None
1146
1147         def __init__(self, youtube_ie, downloader=None):
1148                 InfoExtractor.__init__(self, downloader)
1149                 self._youtube_ie = youtube_ie
1150
1151         @staticmethod
1152         def suitable(url):
1153                 return (re.match(MetacafeIE._VALID_URL, url) is not None)
1154
1155         def report_disclaimer(self):
1156                 """Report disclaimer retrieval."""
1157                 self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
1158
1159         def report_age_confirmation(self):
1160                 """Report attempt to confirm age."""
1161                 self._downloader.to_screen(u'[metacafe] Confirming age')
1162
1163         def report_download_webpage(self, video_id):
1164                 """Report webpage download."""
1165                 self._downloader.to_screen(u'[metacafe] %s: Downloading webpage' % video_id)
1166
1167         def report_extraction(self, video_id):
1168                 """Report information extraction."""
1169                 self._downloader.to_screen(u'[metacafe] %s: Extracting information' % video_id)
1170
1171         def _real_initialize(self):
1172                 # Retrieve disclaimer
1173                 request = urllib2.Request(self._DISCLAIMER)
1174                 try:
1175                         self.report_disclaimer()
1176                         disclaimer = urllib2.urlopen(request).read()
1177                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1178                         self._downloader.trouble(u'ERROR: unable to retrieve disclaimer: %s' % str(err))
1179                         return
1180
1181                 # Confirm age
1182                 disclaimer_form = {
1183                         'filters': '0',
1184                         'submit': "Continue - I'm over 18",
1185                         }
1186                 request = urllib2.Request(self._FILTER_POST, urllib.urlencode(disclaimer_form))
1187                 try:
1188                         self.report_age_confirmation()
1189                         disclaimer = urllib2.urlopen(request).read()
1190                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1191                         self._downloader.trouble(u'ERROR: unable to confirm age: %s' % str(err))
1192                         return
1193
1194         def _real_extract(self, url):
1195                 # Extract id and simplified title from URL
1196                 mobj = re.match(self._VALID_URL, url)
1197                 if mobj is None:
1198                         self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
1199                         return
1200
1201                 video_id = mobj.group(1)
1202
1203                 # Check if video comes from YouTube
1204                 mobj2 = re.match(r'^yt-(.*)$', video_id)
1205                 if mobj2 is not None:
1206                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % mobj2.group(1))
1207                         return
1208
1209                 # At this point we have a new video
1210                 self._downloader.increment_downloads()
1211
1212                 simple_title = mobj.group(2).decode('utf-8')
1213
1214                 # Retrieve video webpage to extract further information
1215                 request = urllib2.Request('http://www.metacafe.com/watch/%s/' % video_id)
1216                 try:
1217                         self.report_download_webpage(video_id)
1218                         webpage = urllib2.urlopen(request).read()
1219                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1220                         self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
1221                         return
1222
1223                 # Extract URL, uploader and title from webpage
1224                 self.report_extraction(video_id)
1225                 mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
1226                 if mobj is not None:
1227                         mediaURL = urllib.unquote(mobj.group(1))
1228                         video_extension = mediaURL[-3:]
1229
1230                         # Extract gdaKey if available
1231                         mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
1232                         if mobj is None:
1233                                 video_url = mediaURL
1234                         else:
1235                                 gdaKey = mobj.group(1)
1236                                 video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
1237                 else:
1238                         mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
1239                         if mobj is None:
1240                                 self._downloader.trouble(u'ERROR: unable to extract media URL')
1241                                 return
1242                         vardict = parse_qs(mobj.group(1))
1243                         if 'mediaData' not in vardict:
1244                                 self._downloader.trouble(u'ERROR: unable to extract media URL')
1245                                 return
1246                         mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
1247                         if mobj is None:
1248                                 self._downloader.trouble(u'ERROR: unable to extract media URL')
1249                                 return
1250                         mediaURL = mobj.group(1).replace('\\/', '/')
1251                         video_extension = mediaURL[-3:]
1252                         video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
1253
1254                 mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
1255                 if mobj is None:
1256                         self._downloader.trouble(u'ERROR: unable to extract title')
1257                         return
1258                 video_title = mobj.group(1).decode('utf-8')
1259                 video_title = sanitize_title(video_title)
1260
1261                 mobj = re.search(r'(?ms)By:\s*<a .*?>(.+?)<', webpage)
1262                 if mobj is None:
1263                         self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
1264                         return
1265                 video_uploader = mobj.group(1)
1266
1267                 try:
1268                         # Process video information
1269                         self._downloader.process_info({
1270                                 'id':           video_id.decode('utf-8'),
1271                                 'url':          video_url.decode('utf-8'),
1272                                 'uploader':     video_uploader.decode('utf-8'),
1273                                 'upload_date':  u'NA',
1274                                 'title':        video_title,
1275                                 'stitle':       simple_title,
1276                                 'ext':          video_extension.decode('utf-8'),
1277                                 'format':       u'NA',
1278                                 'player_url':   None,
1279                         })
1280                 except UnavailableVideoError:
1281                         self._downloader.trouble(u'\nERROR: unable to download video')
1282
1283
1284 class DailymotionIE(InfoExtractor):
1285         """Information Extractor for Dailymotion"""
1286
1287         _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^_/]+)_([^/]+)'
1288
1289         def __init__(self, downloader=None):
1290                 InfoExtractor.__init__(self, downloader)
1291
1292         @staticmethod
1293         def suitable(url):
1294                 return (re.match(DailymotionIE._VALID_URL, url) is not None)
1295
1296         def report_download_webpage(self, video_id):
1297                 """Report webpage download."""
1298                 self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
1299
1300         def report_extraction(self, video_id):
1301                 """Report information extraction."""
1302                 self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
1303
1304         def _real_initialize(self):
1305                 return
1306
1307         def _real_extract(self, url):
1308                 # Extract id and simplified title from URL
1309                 mobj = re.match(self._VALID_URL, url)
1310                 if mobj is None:
1311                         self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
1312                         return
1313
1314                 # At this point we have a new video
1315                 self._downloader.increment_downloads()
1316                 video_id = mobj.group(1)
1317
1318                 simple_title = mobj.group(2).decode('utf-8')
1319                 video_extension = 'flv'
1320
1321                 # Retrieve video webpage to extract further information
1322                 request = urllib2.Request(url)
1323                 try:
1324                         self.report_download_webpage(video_id)
1325                         webpage = urllib2.urlopen(request).read()
1326                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1327                         self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
1328                         return
1329
1330                 # Extract URL, uploader and title from webpage
1331                 self.report_extraction(video_id)
1332                 mobj = re.search(r'(?i)addVariable\(\"video\"\s*,\s*\"([^\"]*)\"\)', webpage)
1333                 if mobj is None:
1334                         self._downloader.trouble(u'ERROR: unable to extract media URL')
1335                         return
1336                 mediaURL = urllib.unquote(mobj.group(1))
1337
1338                 # if needed add http://www.dailymotion.com/ if relative URL
1339
1340                 video_url = mediaURL
1341
1342                 # '<meta\s+name="title"\s+content="Dailymotion\s*[:\-]\s*(.*?)"\s*\/\s*>'
1343                 mobj = re.search(r'(?im)<title>Dailymotion\s*[\-:]\s*(.+?)</title>', webpage)
1344                 if mobj is None:
1345                         self._downloader.trouble(u'ERROR: unable to extract title')
1346                         return
1347                 video_title = mobj.group(1).decode('utf-8')
1348                 video_title = sanitize_title(video_title)
1349
1350                 mobj = re.search(r'(?im)<Attribute name="owner">(.+?)</Attribute>', webpage)
1351                 if mobj is None:
1352                         self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
1353                         return
1354                 video_uploader = mobj.group(1)
1355
1356                 try:
1357                         # Process video information
1358                         self._downloader.process_info({
1359                                 'id':           video_id.decode('utf-8'),
1360                                 'url':          video_url.decode('utf-8'),
1361                                 'uploader':     video_uploader.decode('utf-8'),
1362                                 'upload_date':  u'NA',
1363                                 'title':        video_title,
1364                                 'stitle':       simple_title,
1365                                 'ext':          video_extension.decode('utf-8'),
1366                                 'format':       u'NA',
1367                                 'player_url':   None,
1368                         })
1369                 except UnavailableVideoError:
1370                         self._downloader.trouble(u'\nERROR: unable to download video')
1371
1372 class GoogleIE(InfoExtractor):
1373         """Information extractor for video.google.com."""
1374
1375         _VALID_URL = r'(?:http://)?video\.google\.(?:com(?:\.au)?|co\.(?:uk|jp|kr|cr)|ca|de|es|fr|it|nl|pl)/videoplay\?docid=([^\&]+).*'
1376
1377         def __init__(self, downloader=None):
1378                 InfoExtractor.__init__(self, downloader)
1379
1380         @staticmethod
1381         def suitable(url):
1382                 return (re.match(GoogleIE._VALID_URL, url) is not None)
1383
1384         def report_download_webpage(self, video_id):
1385                 """Report webpage download."""
1386                 self._downloader.to_screen(u'[video.google] %s: Downloading webpage' % video_id)
1387
1388         def report_extraction(self, video_id):
1389                 """Report information extraction."""
1390                 self._downloader.to_screen(u'[video.google] %s: Extracting information' % video_id)
1391
1392         def _real_initialize(self):
1393                 return
1394
1395         def _real_extract(self, url):
1396                 # Extract id from URL
1397                 mobj = re.match(self._VALID_URL, url)
1398                 if mobj is None:
1399                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1400                         return
1401
1402                 # At this point we have a new video
1403                 self._downloader.increment_downloads()
1404                 video_id = mobj.group(1)
1405
1406                 video_extension = 'mp4'
1407
1408                 # Retrieve video webpage to extract further information
1409                 request = urllib2.Request('http://video.google.com/videoplay?docid=%s&hl=en&oe=utf-8' % video_id)
1410                 try:
1411                         self.report_download_webpage(video_id)
1412                         webpage = urllib2.urlopen(request).read()
1413                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1414                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1415                         return
1416
1417                 # Extract URL, uploader, and title from webpage
1418                 self.report_extraction(video_id)
1419                 mobj = re.search(r"download_url:'([^']+)'", webpage)
1420                 if mobj is None:
1421                         video_extension = 'flv'
1422                         mobj = re.search(r"(?i)videoUrl\\x3d(.+?)\\x26", webpage)
1423                 if mobj is None:
1424                         self._downloader.trouble(u'ERROR: unable to extract media URL')
1425                         return
1426                 mediaURL = urllib.unquote(mobj.group(1))
1427                 mediaURL = mediaURL.replace('\\x3d', '\x3d')
1428                 mediaURL = mediaURL.replace('\\x26', '\x26')
1429
1430                 video_url = mediaURL
1431
1432                 mobj = re.search(r'<title>(.*)</title>', webpage)
1433                 if mobj is None:
1434                         self._downloader.trouble(u'ERROR: unable to extract title')
1435                         return
1436                 video_title = mobj.group(1).decode('utf-8')
1437                 video_title = sanitize_title(video_title)
1438                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1439
1440                 # Extract video description
1441                 mobj = re.search(r'<span id=short-desc-content>([^<]*)</span>', webpage)
1442                 if mobj is None:
1443                         self._downloader.trouble(u'ERROR: unable to extract video description')
1444                         return
1445                 video_description = mobj.group(1).decode('utf-8')
1446                 if not video_description:
1447                         video_description = 'No description available.'
1448
1449                 # Extract video thumbnail
1450                 if self._downloader.params.get('forcethumbnail', False):
1451                         request = urllib2.Request('http://video.google.com/videosearch?q=%s+site:video.google.com&hl=en' % abs(int(video_id)))
1452                         try:
1453                                 webpage = urllib2.urlopen(request).read()
1454                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1455                                 self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1456                                 return
1457                         mobj = re.search(r'<img class=thumbnail-img (?:.* )?src=(http.*)>', webpage)
1458                         if mobj is None:
1459                                 self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
1460                                 return
1461                         video_thumbnail = mobj.group(1)
1462                 else:   # we need something to pass to process_info
1463                         video_thumbnail = ''
1464
1465
1466                 try:
1467                         # Process video information
1468                         self._downloader.process_info({
1469                                 'id':           video_id.decode('utf-8'),
1470                                 'url':          video_url.decode('utf-8'),
1471                                 'uploader':     u'NA',
1472                                 'upload_date':  u'NA',
1473                                 'title':        video_title,
1474                                 'stitle':       simple_title,
1475                                 'ext':          video_extension.decode('utf-8'),
1476                                 'format':       u'NA',
1477                                 'player_url':   None,
1478                         })
1479                 except UnavailableVideoError:
1480                         self._downloader.trouble(u'\nERROR: unable to download video')
1481
1482
1483 class PhotobucketIE(InfoExtractor):
1484         """Information extractor for photobucket.com."""
1485
1486         _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
1487
1488         def __init__(self, downloader=None):
1489                 InfoExtractor.__init__(self, downloader)
1490
1491         @staticmethod
1492         def suitable(url):
1493                 return (re.match(PhotobucketIE._VALID_URL, url) is not None)
1494
1495         def report_download_webpage(self, video_id):
1496                 """Report webpage download."""
1497                 self._downloader.to_screen(u'[photobucket] %s: Downloading webpage' % video_id)
1498
1499         def report_extraction(self, video_id):
1500                 """Report information extraction."""
1501                 self._downloader.to_screen(u'[photobucket] %s: Extracting information' % video_id)
1502
1503         def _real_initialize(self):
1504                 return
1505
1506         def _real_extract(self, url):
1507                 # Extract id from URL
1508                 mobj = re.match(self._VALID_URL, url)
1509                 if mobj is None:
1510                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1511                         return
1512
1513                 # At this point we have a new video
1514                 self._downloader.increment_downloads()
1515                 video_id = mobj.group(1)
1516
1517                 video_extension = 'flv'
1518
1519                 # Retrieve video webpage to extract further information
1520                 request = urllib2.Request(url)
1521                 try:
1522                         self.report_download_webpage(video_id)
1523                         webpage = urllib2.urlopen(request).read()
1524                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1525                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1526                         return
1527
1528                 # Extract URL, uploader, and title from webpage
1529                 self.report_extraction(video_id)
1530                 mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
1531                 if mobj is None:
1532                         self._downloader.trouble(u'ERROR: unable to extract media URL')
1533                         return
1534                 mediaURL = urllib.unquote(mobj.group(1))
1535
1536                 video_url = mediaURL
1537
1538                 mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
1539                 if mobj is None:
1540                         self._downloader.trouble(u'ERROR: unable to extract title')
1541                         return
1542                 video_title = mobj.group(1).decode('utf-8')
1543                 video_title = sanitize_title(video_title)
1544                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1545
1546                 video_uploader = mobj.group(2).decode('utf-8')
1547
1548                 try:
1549                         # Process video information
1550                         self._downloader.process_info({
1551                                 'id':           video_id.decode('utf-8'),
1552                                 'url':          video_url.decode('utf-8'),
1553                                 'uploader':     video_uploader,
1554                                 'upload_date':  u'NA',
1555                                 'title':        video_title,
1556                                 'stitle':       simple_title,
1557                                 'ext':          video_extension.decode('utf-8'),
1558                                 'format':       u'NA',
1559                                 'player_url':   None,
1560                         })
1561                 except UnavailableVideoError:
1562                         self._downloader.trouble(u'\nERROR: unable to download video')
1563
1564
1565 class YahooIE(InfoExtractor):
1566         """Information extractor for video.yahoo.com."""
1567
1568         # _VALID_URL matches all Yahoo! Video URLs
1569         # _VPAGE_URL matches only the extractable '/watch/' URLs
1570         _VALID_URL = r'(?:http://)?(?:[a-z]+\.)?video\.yahoo\.com/(?:watch|network)/([0-9]+)(?:/|\?v=)([0-9]+)(?:[#\?].*)?'
1571         _VPAGE_URL = r'(?:http://)?video\.yahoo\.com/watch/([0-9]+)/([0-9]+)(?:[#\?].*)?'
1572
1573         def __init__(self, downloader=None):
1574                 InfoExtractor.__init__(self, downloader)
1575
1576         @staticmethod
1577         def suitable(url):
1578                 return (re.match(YahooIE._VALID_URL, url) is not None)
1579
1580         def report_download_webpage(self, video_id):
1581                 """Report webpage download."""
1582                 self._downloader.to_screen(u'[video.yahoo] %s: Downloading webpage' % video_id)
1583
1584         def report_extraction(self, video_id):
1585                 """Report information extraction."""
1586                 self._downloader.to_screen(u'[video.yahoo] %s: Extracting information' % video_id)
1587
1588         def _real_initialize(self):
1589                 return
1590
1591         def _real_extract(self, url, new_video=True):
1592                 # Extract ID from URL
1593                 mobj = re.match(self._VALID_URL, url)
1594                 if mobj is None:
1595                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1596                         return
1597
1598                 # At this point we have a new video
1599                 self._downloader.increment_downloads()
1600                 video_id = mobj.group(2)
1601                 video_extension = 'flv'
1602
1603                 # Rewrite valid but non-extractable URLs as
1604                 # extractable English language /watch/ URLs
1605                 if re.match(self._VPAGE_URL, url) is None:
1606                         request = urllib2.Request(url)
1607                         try:
1608                                 webpage = urllib2.urlopen(request).read()
1609                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1610                                 self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1611                                 return
1612
1613                         mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
1614                         if mobj is None:
1615                                 self._downloader.trouble(u'ERROR: Unable to extract id field')
1616                                 return
1617                         yahoo_id = mobj.group(1)
1618
1619                         mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
1620                         if mobj is None:
1621                                 self._downloader.trouble(u'ERROR: Unable to extract vid field')
1622                                 return
1623                         yahoo_vid = mobj.group(1)
1624
1625                         url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
1626                         return self._real_extract(url, new_video=False)
1627
1628                 # Retrieve video webpage to extract further information
1629                 request = urllib2.Request(url)
1630                 try:
1631                         self.report_download_webpage(video_id)
1632                         webpage = urllib2.urlopen(request).read()
1633                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1634                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1635                         return
1636
1637                 # Extract uploader and title from webpage
1638                 self.report_extraction(video_id)
1639                 mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
1640                 if mobj is None:
1641                         self._downloader.trouble(u'ERROR: unable to extract video title')
1642                         return
1643                 video_title = mobj.group(1).decode('utf-8')
1644                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1645
1646                 mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
1647                 if mobj is None:
1648                         self._downloader.trouble(u'ERROR: unable to extract video uploader')
1649                         return
1650                 video_uploader = mobj.group(1).decode('utf-8')
1651
1652                 # Extract video thumbnail
1653                 mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
1654                 if mobj is None:
1655                         self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
1656                         return
1657                 video_thumbnail = mobj.group(1).decode('utf-8')
1658
1659                 # Extract video description
1660                 mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
1661                 if mobj is None:
1662                         self._downloader.trouble(u'ERROR: unable to extract video description')
1663                         return
1664                 video_description = mobj.group(1).decode('utf-8')
1665                 if not video_description: video_description = 'No description available.'
1666
1667                 # Extract video height and width
1668                 mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
1669                 if mobj is None:
1670                         self._downloader.trouble(u'ERROR: unable to extract video height')
1671                         return
1672                 yv_video_height = mobj.group(1)
1673
1674                 mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
1675                 if mobj is None:
1676                         self._downloader.trouble(u'ERROR: unable to extract video width')
1677                         return
1678                 yv_video_width = mobj.group(1)
1679
1680                 # Retrieve video playlist to extract media URL
1681                 # I'm not completely sure what all these options are, but we
1682                 # seem to need most of them, otherwise the server sends a 401.
1683                 yv_lg = 'R0xx6idZnW2zlrKP8xxAIR'  # not sure what this represents
1684                 yv_bitrate = '700'  # according to Wikipedia this is hard-coded
1685                 request = urllib2.Request('http://cosmos.bcst.yahoo.com/up/yep/process/getPlaylistFOP.php?node_id=' + video_id +
1686                                           '&tech=flash&mode=playlist&lg=' + yv_lg + '&bitrate=' + yv_bitrate + '&vidH=' + yv_video_height +
1687                                           '&vidW=' + yv_video_width + '&swf=as3&rd=video.yahoo.com&tk=null&adsupported=v1,v2,&eventid=1301797')
1688                 try:
1689                         self.report_download_webpage(video_id)
1690                         webpage = urllib2.urlopen(request).read()
1691                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1692                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1693                         return
1694
1695                 # Extract media URL from playlist XML
1696                 mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
1697                 if mobj is None:
1698                         self._downloader.trouble(u'ERROR: Unable to extract media URL')
1699                         return
1700                 video_url = urllib.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
1701                 video_url = re.sub(r'(?u)&(.+?);', htmlentity_transform, video_url)
1702
1703                 try:
1704                         # Process video information
1705                         self._downloader.process_info({
1706                                 'id':           video_id.decode('utf-8'),
1707                                 'url':          video_url,
1708                                 'uploader':     video_uploader,
1709                                 'upload_date':  u'NA',
1710                                 'title':        video_title,
1711                                 'stitle':       simple_title,
1712                                 'ext':          video_extension.decode('utf-8'),
1713                                 'thumbnail':    video_thumbnail.decode('utf-8'),
1714                                 'description':  video_description,
1715                                 'thumbnail':    video_thumbnail,
1716                                 'description':  video_description,
1717                                 'player_url':   None,
1718                         })
1719                 except UnavailableVideoError:
1720                         self._downloader.trouble(u'\nERROR: unable to download video')
1721
1722
1723 class GenericIE(InfoExtractor):
1724         """Generic last-resort information extractor."""
1725
1726         def __init__(self, downloader=None):
1727                 InfoExtractor.__init__(self, downloader)
1728
1729         @staticmethod
1730         def suitable(url):
1731                 return True
1732
1733         def report_download_webpage(self, video_id):
1734                 """Report webpage download."""
1735                 self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
1736                 self._downloader.to_screen(u'[generic] %s: Downloading webpage' % video_id)
1737
1738         def report_extraction(self, video_id):
1739                 """Report information extraction."""
1740                 self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
1741
1742         def _real_initialize(self):
1743                 return
1744
1745         def _real_extract(self, url):
1746                 # At this point we have a new video
1747                 self._downloader.increment_downloads()
1748
1749                 video_id = url.split('/')[-1]
1750                 request = urllib2.Request(url)
1751                 try:
1752                         self.report_download_webpage(video_id)
1753                         webpage = urllib2.urlopen(request).read()
1754                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1755                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1756                         return
1757                 except ValueError, err:
1758                         # since this is the last-resort InfoExtractor, if
1759                         # this error is thrown, it'll be thrown here
1760                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1761                         return
1762
1763                 self.report_extraction(video_id)
1764                 # Start with something easy: JW Player in SWFObject
1765                 mobj = re.search(r'flashvars: [\'"](?:.*&)?file=(http[^\'"&]*)', webpage)
1766                 if mobj is None:
1767                         # Broaden the search a little bit
1768                         mobj = re.search(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage)
1769                 if mobj is None:
1770                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1771                         return
1772
1773                 # It's possible that one of the regexes
1774                 # matched, but returned an empty group:
1775                 if mobj.group(1) is None:
1776                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1777                         return
1778
1779                 video_url = urllib.unquote(mobj.group(1))
1780                 video_id  = os.path.basename(video_url)
1781
1782                 # here's a fun little line of code for you:
1783                 video_extension = os.path.splitext(video_id)[1][1:]
1784                 video_id        = os.path.splitext(video_id)[0]
1785
1786                 # it's tempting to parse this further, but you would
1787                 # have to take into account all the variations like
1788                 #   Video Title - Site Name
1789                 #   Site Name | Video Title
1790                 #   Video Title - Tagline | Site Name
1791                 # and so on and so forth; it's just not practical
1792                 mobj = re.search(r'<title>(.*)</title>', webpage)
1793                 if mobj is None:
1794                         self._downloader.trouble(u'ERROR: unable to extract title')
1795                         return
1796                 video_title = mobj.group(1).decode('utf-8')
1797                 video_title = sanitize_title(video_title)
1798                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1799
1800                 # video uploader is domain name
1801                 mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
1802                 if mobj is None:
1803                         self._downloader.trouble(u'ERROR: unable to extract title')
1804                         return
1805                 video_uploader = mobj.group(1).decode('utf-8')
1806
1807                 try:
1808                         # Process video information
1809                         self._downloader.process_info({
1810                                 'id':           video_id.decode('utf-8'),
1811                                 'url':          video_url.decode('utf-8'),
1812                                 'uploader':     video_uploader,
1813                                 'upload_date':  u'NA',
1814                                 'title':        video_title,
1815                                 'stitle':       simple_title,
1816                                 'ext':          video_extension.decode('utf-8'),
1817                                 'format':       u'NA',
1818                                 'player_url':   None,
1819                         })
1820                 except UnavailableVideoError, err:
1821                         self._downloader.trouble(u'\nERROR: unable to download video')
1822
1823
1824 class YoutubeSearchIE(InfoExtractor):
1825         """Information Extractor for YouTube search queries."""
1826         _VALID_QUERY = r'ytsearch(\d+|all)?:[\s\S]+'
1827         _TEMPLATE_URL = 'http://www.youtube.com/results?search_query=%s&page=%s&gl=US&hl=en'
1828         _VIDEO_INDICATOR = r'href="/watch\?v=.+?"'
1829         _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
1830         _youtube_ie = None
1831         _max_youtube_results = 1000
1832
1833         def __init__(self, youtube_ie, downloader=None):
1834                 InfoExtractor.__init__(self, downloader)
1835                 self._youtube_ie = youtube_ie
1836
1837         @staticmethod
1838         def suitable(url):
1839                 return (re.match(YoutubeSearchIE._VALID_QUERY, url) is not None)
1840
1841         def report_download_page(self, query, pagenum):
1842                 """Report attempt to download playlist page with given number."""
1843                 query = query.decode(preferredencoding())
1844                 self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
1845
1846         def _real_initialize(self):
1847                 self._youtube_ie.initialize()
1848
1849         def _real_extract(self, query):
1850                 mobj = re.match(self._VALID_QUERY, query)
1851                 if mobj is None:
1852                         self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
1853                         return
1854
1855                 prefix, query = query.split(':')
1856                 prefix = prefix[8:]
1857                 query  = query.encode('utf-8')
1858                 if prefix == '':
1859                         self._download_n_results(query, 1)
1860                         return
1861                 elif prefix == 'all':
1862                         self._download_n_results(query, self._max_youtube_results)
1863                         return
1864                 else:
1865                         try:
1866                                 n = long(prefix)
1867                                 if n <= 0:
1868                                         self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
1869                                         return
1870                                 elif n > self._max_youtube_results:
1871                                         self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)'  % (self._max_youtube_results, n))
1872                                         n = self._max_youtube_results
1873                                 self._download_n_results(query, n)
1874                                 return
1875                         except ValueError: # parsing prefix as integer fails
1876                                 self._download_n_results(query, 1)
1877                                 return
1878
1879         def _download_n_results(self, query, n):
1880                 """Downloads a specified number of results for a query"""
1881
1882                 video_ids = []
1883                 already_seen = set()
1884                 pagenum = 1
1885
1886                 while True:
1887                         self.report_download_page(query, pagenum)
1888                         result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
1889                         request = urllib2.Request(result_url)
1890                         try:
1891                                 page = urllib2.urlopen(request).read()
1892                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1893                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
1894                                 return
1895
1896                         # Extract video identifiers
1897                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
1898                                 video_id = page[mobj.span()[0]:mobj.span()[1]].split('=')[2][:-1]
1899                                 if video_id not in already_seen:
1900                                         video_ids.append(video_id)
1901                                         already_seen.add(video_id)
1902                                         if len(video_ids) == n:
1903                                                 # Specified n videos reached
1904                                                 for id in video_ids:
1905                                                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
1906                                                 return
1907
1908                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
1909                                 for id in video_ids:
1910                                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
1911                                 return
1912
1913                         pagenum = pagenum + 1
1914
1915 class GoogleSearchIE(InfoExtractor):
1916         """Information Extractor for Google Video search queries."""
1917         _VALID_QUERY = r'gvsearch(\d+|all)?:[\s\S]+'
1918         _TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
1919         _VIDEO_INDICATOR = r'videoplay\?docid=([^\&>]+)\&'
1920         _MORE_PAGES_INDICATOR = r'<span>Next</span>'
1921         _google_ie = None
1922         _max_google_results = 1000
1923
1924         def __init__(self, google_ie, downloader=None):
1925                 InfoExtractor.__init__(self, downloader)
1926                 self._google_ie = google_ie
1927
1928         @staticmethod
1929         def suitable(url):
1930                 return (re.match(GoogleSearchIE._VALID_QUERY, url) is not None)
1931
1932         def report_download_page(self, query, pagenum):
1933                 """Report attempt to download playlist page with given number."""
1934                 query = query.decode(preferredencoding())
1935                 self._downloader.to_screen(u'[video.google] query "%s": Downloading page %s' % (query, pagenum))
1936
1937         def _real_initialize(self):
1938                 self._google_ie.initialize()
1939
1940         def _real_extract(self, query):
1941                 mobj = re.match(self._VALID_QUERY, query)
1942                 if mobj is None:
1943                         self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
1944                         return
1945
1946                 prefix, query = query.split(':')
1947                 prefix = prefix[8:]
1948                 query  = query.encode('utf-8')
1949                 if prefix == '':
1950                         self._download_n_results(query, 1)
1951                         return
1952                 elif prefix == 'all':
1953                         self._download_n_results(query, self._max_google_results)
1954                         return
1955                 else:
1956                         try:
1957                                 n = long(prefix)
1958                                 if n <= 0:
1959                                         self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
1960                                         return
1961                                 elif n > self._max_google_results:
1962                                         self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)'  % (self._max_google_results, n))
1963                                         n = self._max_google_results
1964                                 self._download_n_results(query, n)
1965                                 return
1966                         except ValueError: # parsing prefix as integer fails
1967                                 self._download_n_results(query, 1)
1968                                 return
1969
1970         def _download_n_results(self, query, n):
1971                 """Downloads a specified number of results for a query"""
1972
1973                 video_ids = []
1974                 already_seen = set()
1975                 pagenum = 1
1976
1977                 while True:
1978                         self.report_download_page(query, pagenum)
1979                         result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
1980                         request = urllib2.Request(result_url)
1981                         try:
1982                                 page = urllib2.urlopen(request).read()
1983                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1984                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
1985                                 return
1986
1987                         # Extract video identifiers
1988                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
1989                                 video_id = mobj.group(1)
1990                                 if video_id not in already_seen:
1991                                         video_ids.append(video_id)
1992                                         already_seen.add(video_id)
1993                                         if len(video_ids) == n:
1994                                                 # Specified n videos reached
1995                                                 for id in video_ids:
1996                                                         self._google_ie.extract('http://video.google.com/videoplay?docid=%s' % id)
1997                                                 return
1998
1999                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
2000                                 for id in video_ids:
2001                                         self._google_ie.extract('http://video.google.com/videoplay?docid=%s' % id)
2002                                 return
2003
2004                         pagenum = pagenum + 1
2005
2006 class YahooSearchIE(InfoExtractor):
2007         """Information Extractor for Yahoo! Video search queries."""
2008         _VALID_QUERY = r'yvsearch(\d+|all)?:[\s\S]+'
2009         _TEMPLATE_URL = 'http://video.yahoo.com/search/?p=%s&o=%s'
2010         _VIDEO_INDICATOR = r'href="http://video\.yahoo\.com/watch/([0-9]+/[0-9]+)"'
2011         _MORE_PAGES_INDICATOR = r'\s*Next'
2012         _yahoo_ie = None
2013         _max_yahoo_results = 1000
2014
2015         def __init__(self, yahoo_ie, downloader=None):
2016                 InfoExtractor.__init__(self, downloader)
2017                 self._yahoo_ie = yahoo_ie
2018
2019         @staticmethod
2020         def suitable(url):
2021                 return (re.match(YahooSearchIE._VALID_QUERY, url) is not None)
2022
2023         def report_download_page(self, query, pagenum):
2024                 """Report attempt to download playlist page with given number."""
2025                 query = query.decode(preferredencoding())
2026                 self._downloader.to_screen(u'[video.yahoo] query "%s": Downloading page %s' % (query, pagenum))
2027
2028         def _real_initialize(self):
2029                 self._yahoo_ie.initialize()
2030
2031         def _real_extract(self, query):
2032                 mobj = re.match(self._VALID_QUERY, query)
2033                 if mobj is None:
2034                         self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
2035                         return
2036
2037                 prefix, query = query.split(':')
2038                 prefix = prefix[8:]
2039                 query  = query.encode('utf-8')
2040                 if prefix == '':
2041                         self._download_n_results(query, 1)
2042                         return
2043                 elif prefix == 'all':
2044                         self._download_n_results(query, self._max_yahoo_results)
2045                         return
2046                 else:
2047                         try:
2048                                 n = long(prefix)
2049                                 if n <= 0:
2050                                         self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
2051                                         return
2052                                 elif n > self._max_yahoo_results:
2053                                         self._downloader.to_stderr(u'WARNING: yvsearch returns max %i results (you requested %i)'  % (self._max_yahoo_results, n))
2054                                         n = self._max_yahoo_results
2055                                 self._download_n_results(query, n)
2056                                 return
2057                         except ValueError: # parsing prefix as integer fails
2058                                 self._download_n_results(query, 1)
2059                                 return
2060
2061         def _download_n_results(self, query, n):
2062                 """Downloads a specified number of results for a query"""
2063
2064                 video_ids = []
2065                 already_seen = set()
2066                 pagenum = 1
2067
2068                 while True:
2069                         self.report_download_page(query, pagenum)
2070                         result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
2071                         request = urllib2.Request(result_url)
2072                         try:
2073                                 page = urllib2.urlopen(request).read()
2074                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2075                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
2076                                 return
2077
2078                         # Extract video identifiers
2079                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
2080                                 video_id = mobj.group(1)
2081                                 if video_id not in already_seen:
2082                                         video_ids.append(video_id)
2083                                         already_seen.add(video_id)
2084                                         if len(video_ids) == n:
2085                                                 # Specified n videos reached
2086                                                 for id in video_ids:
2087                                                         self._yahoo_ie.extract('http://video.yahoo.com/watch/%s' % id)
2088                                                 return
2089
2090                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
2091                                 for id in video_ids:
2092                                         self._yahoo_ie.extract('http://video.yahoo.com/watch/%s' % id)
2093                                 return
2094
2095                         pagenum = pagenum + 1
2096
2097 class YoutubePlaylistIE(InfoExtractor):
2098         """Information Extractor for YouTube playlists."""
2099
2100         _VALID_URL = r'(?:http://)?(?:\w+\.)?youtube.com/(?:(?:view_play_list|my_playlists|artist)\?.*?(p|a)=|user/.*?/user/|p/|user/.*?#[pg]/c/)([0-9A-Za-z]+)(?:/.*?/([0-9A-Za-z_-]+))?.*'
2101         _TEMPLATE_URL = 'http://www.youtube.com/%s?%s=%s&page=%s&gl=US&hl=en'
2102         _VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
2103         _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
2104         _youtube_ie = None
2105
2106         def __init__(self, youtube_ie, downloader=None):
2107                 InfoExtractor.__init__(self, downloader)
2108                 self._youtube_ie = youtube_ie
2109
2110         @staticmethod
2111         def suitable(url):
2112                 return (re.match(YoutubePlaylistIE._VALID_URL, url) is not None)
2113
2114         def report_download_page(self, playlist_id, pagenum):
2115                 """Report attempt to download playlist page with given number."""
2116                 self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
2117
2118         def _real_initialize(self):
2119                 self._youtube_ie.initialize()
2120
2121         def _real_extract(self, url):
2122                 # Extract playlist id
2123                 mobj = re.match(self._VALID_URL, url)
2124                 if mobj is None:
2125                         self._downloader.trouble(u'ERROR: invalid url: %s' % url)
2126                         return
2127
2128                 # Single video case
2129                 if mobj.group(3) is not None:
2130                         self._youtube_ie.extract(mobj.group(3))
2131                         return
2132
2133                 # Download playlist pages
2134                 # prefix is 'p' as default for playlists but there are other types that need extra care
2135                 playlist_prefix = mobj.group(1)
2136                 if playlist_prefix == 'a':
2137                         playlist_access = 'artist'
2138                 else:
2139                         playlist_prefix = 'p'
2140                         playlist_access = 'view_play_list'
2141                 playlist_id = mobj.group(2)
2142                 video_ids = []
2143                 pagenum = 1
2144
2145                 while True:
2146                         self.report_download_page(playlist_id, pagenum)
2147                         request = urllib2.Request(self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum))
2148                         try:
2149                                 page = urllib2.urlopen(request).read()
2150                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2151                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
2152                                 return
2153
2154                         # Extract video identifiers
2155                         ids_in_page = []
2156                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
2157                                 if mobj.group(1) not in ids_in_page:
2158                                         ids_in_page.append(mobj.group(1))
2159                         video_ids.extend(ids_in_page)
2160
2161                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
2162                                 break
2163                         pagenum = pagenum + 1
2164
2165                 playliststart = self._downloader.params.get('playliststart', 1) - 1
2166                 playlistend = self._downloader.params.get('playlistend', -1)
2167                 video_ids = video_ids[playliststart:playlistend]
2168
2169                 for id in video_ids:
2170                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
2171                 return
2172
2173 class YoutubeUserIE(InfoExtractor):
2174         """Information Extractor for YouTube users."""
2175
2176         _VALID_URL = r'(?:(?:(?:http://)?(?:\w+\.)?youtube.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
2177         _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
2178         _GDATA_PAGE_SIZE = 50
2179         _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
2180         _VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
2181         _youtube_ie = None
2182
2183         def __init__(self, youtube_ie, downloader=None):
2184                 InfoExtractor.__init__(self, downloader)
2185                 self._youtube_ie = youtube_ie
2186
2187         @staticmethod
2188         def suitable(url):
2189                 return (re.match(YoutubeUserIE._VALID_URL, url) is not None)
2190
2191         def report_download_page(self, username, start_index):
2192                 """Report attempt to download user page."""
2193                 self._downloader.to_screen(u'[youtube] user %s: Downloading video ids from %d to %d' %
2194                                            (username, start_index, start_index + self._GDATA_PAGE_SIZE))
2195
2196         def _real_initialize(self):
2197                 self._youtube_ie.initialize()
2198
2199         def _real_extract(self, url):
2200                 # Extract username
2201                 mobj = re.match(self._VALID_URL, url)
2202                 if mobj is None:
2203                         self._downloader.trouble(u'ERROR: invalid url: %s' % url)
2204                         return
2205
2206                 username = mobj.group(1)
2207
2208                 # Download video ids using YouTube Data API. Result size per
2209                 # query is limited (currently to 50 videos) so we need to query
2210                 # page by page until there are no video ids - it means we got
2211                 # all of them.
2212
2213                 video_ids = []
2214                 pagenum = 0
2215
2216                 while True:
2217                         start_index = pagenum * self._GDATA_PAGE_SIZE + 1
2218                         self.report_download_page(username, start_index)
2219
2220                         request = urllib2.Request(self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index))
2221
2222                         try:
2223                                 page = urllib2.urlopen(request).read()
2224                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2225                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
2226                                 return
2227
2228                         # Extract video identifiers
2229                         ids_in_page = []
2230
2231                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
2232                                 if mobj.group(1) not in ids_in_page:
2233                                         ids_in_page.append(mobj.group(1))
2234
2235                         video_ids.extend(ids_in_page)
2236
2237                         # A little optimization - if current page is not
2238                         # "full", ie. does not contain PAGE_SIZE video ids then
2239                         # we can assume that this page is the last one - there
2240                         # are no more ids on further pages - no need to query
2241                         # again.
2242
2243                         if len(ids_in_page) < self._GDATA_PAGE_SIZE:
2244                                 break
2245
2246                         pagenum += 1
2247
2248                 all_ids_count = len(video_ids)
2249                 playliststart = self._downloader.params.get('playliststart', 1) - 1
2250                 playlistend = self._downloader.params.get('playlistend', -1)
2251
2252                 if playlistend == -1:
2253                         video_ids = video_ids[playliststart:]
2254                 else:
2255                         video_ids = video_ids[playliststart:playlistend]
2256
2257                 self._downloader.to_screen("[youtube] user %s: Collected %d video ids (downloading %d of them)" %
2258                                            (username, all_ids_count, len(video_ids)))
2259
2260                 for video_id in video_ids:
2261                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % video_id)
2262
2263
2264 class DepositFilesIE(InfoExtractor):
2265         """Information extractor for depositfiles.com"""
2266
2267         _VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles.com/(?:../(?#locale))?files/(.+)'
2268
2269         def __init__(self, downloader=None):
2270                 InfoExtractor.__init__(self, downloader)
2271
2272         @staticmethod
2273         def suitable(url):
2274                 return (re.match(DepositFilesIE._VALID_URL, url) is not None)
2275
2276         def report_download_webpage(self, file_id):
2277                 """Report webpage download."""
2278                 self._downloader.to_screen(u'[DepositFiles] %s: Downloading webpage' % file_id)
2279
2280         def report_extraction(self, file_id):
2281                 """Report information extraction."""
2282                 self._downloader.to_screen(u'[DepositFiles] %s: Extracting information' % file_id)
2283
2284         def _real_initialize(self):
2285                 return
2286
2287         def _real_extract(self, url):
2288                 # At this point we have a new file
2289                 self._downloader.increment_downloads()
2290
2291                 file_id = url.split('/')[-1]
2292                 # Rebuild url in english locale
2293                 url = 'http://depositfiles.com/en/files/' + file_id
2294
2295                 # Retrieve file webpage with 'Free download' button pressed
2296                 free_download_indication = { 'gateway_result' : '1' }
2297                 request = urllib2.Request(url, urllib.urlencode(free_download_indication))
2298                 try:
2299                         self.report_download_webpage(file_id)
2300                         webpage = urllib2.urlopen(request).read()
2301                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2302                         self._downloader.trouble(u'ERROR: Unable to retrieve file webpage: %s' % str(err))
2303                         return
2304
2305                 # Search for the real file URL
2306                 mobj = re.search(r'<form action="(http://fileshare.+?)"', webpage)
2307                 if (mobj is None) or (mobj.group(1) is None):
2308                         # Try to figure out reason of the error.
2309                         mobj = re.search(r'<strong>(Attention.*?)</strong>', webpage, re.DOTALL)
2310                         if (mobj is not None) and (mobj.group(1) is not None):
2311                                 restriction_message = re.sub('\s+', ' ', mobj.group(1)).strip()
2312                                 self._downloader.trouble(u'ERROR: %s' % restriction_message)
2313                         else:
2314                                 self._downloader.trouble(u'ERROR: unable to extract download URL from: %s' % url)
2315                         return
2316
2317                 file_url = mobj.group(1)
2318                 file_extension = os.path.splitext(file_url)[1][1:]
2319
2320                 # Search for file title
2321                 mobj = re.search(r'<b title="(.*?)">', webpage)
2322                 if mobj is None:
2323                         self._downloader.trouble(u'ERROR: unable to extract title')
2324                         return
2325                 file_title = mobj.group(1).decode('utf-8')
2326
2327                 try:
2328                         # Process file information
2329                         self._downloader.process_info({
2330                                 'id':           file_id.decode('utf-8'),
2331                                 'url':          file_url.decode('utf-8'),
2332                                 'uploader':     u'NA',
2333                                 'upload_date':  u'NA',
2334                                 'title':        file_title,
2335                                 'stitle':       file_title,
2336                                 'ext':          file_extension.decode('utf-8'),
2337                                 'format':       u'NA',
2338                                 'player_url':   None,
2339                         })
2340                 except UnavailableVideoError, err:
2341                         self._downloader.trouble(u'ERROR: unable to download file')
2342
2343 class FacebookIE(InfoExtractor):
2344         """Information Extractor for Facebook"""
2345
2346         _VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook.com/video/video.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
2347         _LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
2348         _NETRC_MACHINE = 'facebook'
2349         _available_formats = ['highqual', 'lowqual']
2350         _video_extensions = {
2351                 'highqual': 'mp4',
2352                 'lowqual': 'mp4',
2353         }
2354
2355         def __init__(self, downloader=None):
2356                 InfoExtractor.__init__(self, downloader)
2357
2358         @staticmethod
2359         def suitable(url):
2360                 return (re.match(FacebookIE._VALID_URL, url) is not None)
2361
2362         def _reporter(self, message):
2363                 """Add header and report message."""
2364                 self._downloader.to_screen(u'[facebook] %s' % message)
2365
2366         def report_login(self):
2367                 """Report attempt to log in."""
2368                 self._reporter(u'Logging in')
2369
2370         def report_video_webpage_download(self, video_id):
2371                 """Report attempt to download video webpage."""
2372                 self._reporter(u'%s: Downloading video webpage' % video_id)
2373
2374         def report_information_extraction(self, video_id):
2375                 """Report attempt to extract video information."""
2376                 self._reporter(u'%s: Extracting video information' % video_id)
2377
2378         def _parse_page(self, video_webpage):
2379                 """Extract video information from page"""
2380                 # General data
2381                 data = {'title': r'class="video_title datawrap">(.*?)</',
2382                         'description': r'<div class="datawrap">(.*?)</div>',
2383                         'owner': r'\("video_owner_name", "(.*?)"\)',
2384                         'upload_date': r'data-date="(.*?)"',
2385                         'thumbnail':  r'\("thumb_url", "(?P<THUMB>.*?)"\)',
2386                         }
2387                 video_info = {}
2388                 for piece in data.keys():
2389                         mobj = re.search(data[piece], video_webpage)
2390                         if mobj is not None:
2391                                 video_info[piece] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
2392
2393                 # Video urls
2394                 video_urls = {}
2395                 for fmt in self._available_formats:
2396                         mobj = re.search(r'\("%s_src\", "(.+?)"\)' % fmt, video_webpage)
2397                         if mobj is not None:
2398                                 # URL is in a Javascript segment inside an escaped Unicode format within
2399                                 # the generally utf-8 page
2400                                 video_urls[fmt] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
2401                 video_info['video_urls'] = video_urls
2402
2403                 return video_info
2404
2405         def _real_initialize(self):
2406                 if self._downloader is None:
2407                         return
2408
2409                 useremail = None
2410                 password = None
2411                 downloader_params = self._downloader.params
2412
2413                 # Attempt to use provided username and password or .netrc data
2414                 if downloader_params.get('username', None) is not None:
2415                         useremail = downloader_params['username']
2416                         password = downloader_params['password']
2417                 elif downloader_params.get('usenetrc', False):
2418                         try:
2419                                 info = netrc.netrc().authenticators(self._NETRC_MACHINE)
2420                                 if info is not None:
2421                                         useremail = info[0]
2422                                         password = info[2]
2423                                 else:
2424                                         raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
2425                         except (IOError, netrc.NetrcParseError), err:
2426                                 self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
2427                                 return
2428
2429                 if useremail is None:
2430                         return
2431
2432                 # Log in
2433                 login_form = {
2434                         'email': useremail,
2435                         'pass': password,
2436                         'login': 'Log+In'
2437                         }
2438                 request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
2439                 try:
2440                         self.report_login()
2441                         login_results = urllib2.urlopen(request).read()
2442                         if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
2443                                 self._downloader.to_stderr(u'WARNING: unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
2444                                 return
2445                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2446                         self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
2447                         return
2448
2449         def _real_extract(self, url):
2450                 mobj = re.match(self._VALID_URL, url)
2451                 if mobj is None:
2452                         self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
2453                         return
2454                 video_id = mobj.group('ID')
2455
2456                 # Get video webpage
2457                 self.report_video_webpage_download(video_id)
2458                 request = urllib2.Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
2459                 try:
2460                         page = urllib2.urlopen(request)
2461                         video_webpage = page.read()
2462                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2463                         self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
2464                         return
2465
2466                 # Start extracting information
2467                 self.report_information_extraction(video_id)
2468
2469                 # Extract information
2470                 video_info = self._parse_page(video_webpage)
2471
2472                 # uploader
2473                 if 'owner' not in video_info:
2474                         self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
2475                         return
2476                 video_uploader = video_info['owner']
2477
2478                 # title
2479                 if 'title' not in video_info:
2480                         self._downloader.trouble(u'ERROR: unable to extract video title')
2481                         return
2482                 video_title = video_info['title']
2483                 video_title = video_title.decode('utf-8')
2484                 video_title = sanitize_title(video_title)
2485
2486                 # simplified title
2487                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
2488                 simple_title = simple_title.strip(ur'_')
2489
2490                 # thumbnail image
2491                 if 'thumbnail' not in video_info:
2492                         self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
2493                         video_thumbnail = ''
2494                 else:
2495                         video_thumbnail = video_info['thumbnail']
2496
2497                 # upload date
2498                 upload_date = u'NA'
2499                 if 'upload_date' in video_info:
2500                         upload_time = video_info['upload_date']
2501                         timetuple = email.utils.parsedate_tz(upload_time)
2502                         if timetuple is not None:
2503                                 try:
2504                                         upload_date = time.strftime('%Y%m%d', timetuple[0:9])
2505                                 except:
2506                                         pass
2507
2508                 # description
2509                 video_description = 'No description available.'
2510                 if (self._downloader.params.get('forcedescription', False) and
2511                     'description' in video_info):
2512                         video_description = video_info['description']
2513
2514                 url_map = video_info['video_urls']
2515                 if len(url_map.keys()) > 0:
2516                         # Decide which formats to download
2517                         req_format = self._downloader.params.get('format', None)
2518                         format_limit = self._downloader.params.get('format_limit', None)
2519
2520                         if format_limit is not None and format_limit in self._available_formats:
2521                                 format_list = self._available_formats[self._available_formats.index(format_limit):]
2522                         else:
2523                                 format_list = self._available_formats
2524                         existing_formats = [x for x in format_list if x in url_map]
2525                         if len(existing_formats) == 0:
2526                                 self._downloader.trouble(u'ERROR: no known formats available for video')
2527                                 return
2528                         if req_format is None:
2529                                 video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
2530                         elif req_format == '-1':
2531                                 video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
2532                         else:
2533                                 # Specific format
2534                                 if req_format not in url_map:
2535                                         self._downloader.trouble(u'ERROR: requested format not available')
2536                                         return
2537                                 video_url_list = [(req_format, url_map[req_format])] # Specific format
2538
2539                 for format_param, video_real_url in video_url_list:
2540
2541                         # At this point we have a new video
2542                         self._downloader.increment_downloads()
2543
2544                         # Extension
2545                         video_extension = self._video_extensions.get(format_param, 'mp4')
2546
2547                         # Find the video URL in fmt_url_map or conn paramters
2548                         try:
2549                                 # Process video information
2550                                 self._downloader.process_info({
2551                                         'id':           video_id.decode('utf-8'),
2552                                         'url':          video_real_url.decode('utf-8'),
2553                                         'uploader':     video_uploader.decode('utf-8'),
2554                                         'upload_date':  upload_date,
2555                                         'title':        video_title,
2556                                         'stitle':       simple_title,
2557                                         'ext':          video_extension.decode('utf-8'),
2558                                         'format':       (format_param is None and u'NA' or format_param.decode('utf-8')),
2559                                         'thumbnail':    video_thumbnail.decode('utf-8'),
2560                                         'description':  video_description.decode('utf-8'),
2561                                         'player_url':   None,
2562                                 })
2563                         except UnavailableVideoError, err:
2564                                 self._downloader.trouble(u'\nERROR: unable to download video')
2565
2566 class PostProcessor(object):
2567         """Post Processor class.
2568
2569         PostProcessor objects can be added to downloaders with their
2570         add_post_processor() method. When the downloader has finished a
2571         successful download, it will take its internal chain of PostProcessors
2572         and start calling the run() method on each one of them, first with
2573         an initial argument and then with the returned value of the previous
2574         PostProcessor.
2575
2576         The chain will be stopped if one of them ever returns None or the end
2577         of the chain is reached.
2578
2579         PostProcessor objects follow a "mutual registration" process similar
2580         to InfoExtractor objects.
2581         """
2582
2583         _downloader = None
2584
2585         def __init__(self, downloader=None):
2586                 self._downloader = downloader
2587
2588         def set_downloader(self, downloader):
2589                 """Sets the downloader for this PP."""
2590                 self._downloader = downloader
2591
2592         def run(self, information):
2593                 """Run the PostProcessor.
2594
2595                 The "information" argument is a dictionary like the ones
2596                 composed by InfoExtractors. The only difference is that this
2597                 one has an extra field called "filepath" that points to the
2598                 downloaded file.
2599
2600                 When this method returns None, the postprocessing chain is
2601                 stopped. However, this method may return an information
2602                 dictionary that will be passed to the next postprocessing
2603                 object in the chain. It can be the one it received after
2604                 changing some fields.
2605
2606                 In addition, this method may raise a PostProcessingError
2607                 exception that will be taken into account by the downloader
2608                 it was called from.
2609                 """
2610                 return information # by default, do nothing
2611
2612 class FFmpegExtractAudioPP(PostProcessor):
2613
2614         def __init__(self, downloader=None, preferredcodec=None):
2615                 PostProcessor.__init__(self, downloader)
2616                 if preferredcodec is None:
2617                         preferredcodec = 'best'
2618                 self._preferredcodec = preferredcodec
2619
2620         @staticmethod
2621         def get_audio_codec(path):
2622                 handle = subprocess.Popen(['ffprobe', '-show_streams', path],
2623                                 stderr=file(os.path.devnull, 'w'), stdout=subprocess.PIPE)
2624                 output = handle.communicate()[0]
2625                 if handle.wait() != 0:
2626                         return None
2627                 audio_codec = None
2628                 for line in output.split('\n'):
2629                         if line.startswith('codec_name='):
2630                                 audio_codec = line.split('=')[1].strip()
2631                         elif line.strip() == 'codec_type=audio' and audio_codec is not None:
2632                                 return audio_codec
2633                 return None
2634
2635         @staticmethod
2636         def run_ffmpeg(path, out_path, codec, more_opts):
2637                 try:
2638                         ret = subprocess.call(['ffmpeg', '-y', '-i', path, '-vn', '-acodec', codec] + more_opts + [out_path],
2639                                         stdout=file(os.path.devnull, 'w'), stderr=subprocess.STDOUT)
2640                         return (ret == 0)
2641                 except (IOError, OSError):
2642                         return False
2643
2644         def run(self, information):
2645                 path = information['filepath']
2646
2647                 filecodec = self.get_audio_codec(path)
2648                 if filecodec is None:
2649                         self._downloader.to_stderr(u'WARNING: no audio codec found in file')
2650                         return None
2651
2652                 more_opts = []
2653                 if self._preferredcodec == 'best' or self._preferredcodec == filecodec:
2654                         if filecodec == 'aac' or filecodec == 'mp3':
2655                                 # Lossless if possible
2656                                 acodec = 'copy'
2657                                 extension = filecodec
2658                                 if filecodec == 'aac':
2659                                         more_opts = ['-f', 'adts']
2660                         else:
2661                                 # MP3 otherwise.
2662                                 acodec = 'libmp3lame'
2663                                 extension = 'mp3'
2664                                 more_opts = ['-ab', '128k']
2665                 else:
2666                         # We convert the audio (lossy)
2667                         acodec = {'mp3': 'libmp3lame', 'aac': 'aac'}[self._preferredcodec]
2668                         extension = self._preferredcodec
2669                         more_opts = ['-ab', '128k']
2670                         if self._preferredcodec == 'aac':
2671                                 more_opts += ['-f', 'adts']
2672
2673                 (prefix, ext) = os.path.splitext(path)
2674                 new_path = prefix + '.' + extension
2675                 self._downloader.to_screen(u'[ffmpeg] Destination: %s' % new_path)
2676                 status = self.run_ffmpeg(path, new_path, acodec, more_opts)
2677
2678                 if not status:
2679                         self._downloader.to_stderr(u'WARNING: error running ffmpeg' % ret)
2680                         return None
2681
2682                 try:
2683                         os.remove(path)
2684                 except (IOError, OSError):
2685                         self._downloader.to_stderr(u'WARNING: Unable to remove downloaded video file')
2686                         return None
2687
2688                 information['filepath'] = new_path
2689                 return information
2690
2691 ### MAIN PROGRAM ###
2692 if __name__ == '__main__':
2693         try:
2694                 # Modules needed only when running the main program
2695                 import getpass
2696                 import optparse
2697
2698                 # Function to update the program file with the latest version from the repository.
2699                 def update_self(downloader, filename):
2700                         # Note: downloader only used for options
2701                         if not os.access(filename, os.W_OK):
2702                                 sys.exit('ERROR: no write permissions on %s' % filename)
2703
2704                         downloader.to_screen('Updating to latest stable version...')
2705                         try:
2706                                 latest_url = 'http://github.com/rg3/youtube-dl/raw/master/LATEST_VERSION'
2707                                 latest_version = urllib.urlopen(latest_url).read().strip()
2708                                 prog_url = 'http://github.com/rg3/youtube-dl/raw/%s/youtube-dl' % latest_version
2709                                 newcontent = urllib.urlopen(prog_url).read()
2710                         except (IOError, OSError), err:
2711                                 sys.exit('ERROR: unable to download latest version')
2712                         try:
2713                                 stream = open(filename, 'w')
2714                                 stream.write(newcontent)
2715                                 stream.close()
2716                         except (IOError, OSError), err:
2717                                 sys.exit('ERROR: unable to overwrite current version')
2718                         downloader.to_screen('Updated to version %s' % latest_version)
2719
2720                 # Parse command line
2721                 parser = optparse.OptionParser(
2722                         usage='Usage: %prog [options] url...',
2723                         version='2011.02.25',
2724                         conflict_handler='resolve',
2725                 )
2726
2727                 parser.add_option('-h', '--help',
2728                                 action='help', help='print this help text and exit')
2729                 parser.add_option('-v', '--version',
2730                                 action='version', help='print program version and exit')
2731                 parser.add_option('-U', '--update',
2732                                 action='store_true', dest='update_self', help='update this program to latest stable version')
2733                 parser.add_option('-i', '--ignore-errors',
2734                                 action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
2735                 parser.add_option('-r', '--rate-limit',
2736                                 dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
2737                 parser.add_option('-R', '--retries',
2738                                 dest='retries', metavar='RETRIES', help='number of retries (default is 10)', default=10)
2739                 parser.add_option('--playlist-start',
2740                                 dest='playliststart', metavar='NUMBER', help='playlist video to start at (default is 1)', default=1)
2741                 parser.add_option('--playlist-end',
2742                                 dest='playlistend', metavar='NUMBER', help='playlist video to end at (default is last)', default=-1)
2743                 parser.add_option('--dump-user-agent',
2744                                 action='store_true', dest='dump_user_agent',
2745                                 help='display the current browser identification', default=False)
2746
2747                 authentication = optparse.OptionGroup(parser, 'Authentication Options')
2748                 authentication.add_option('-u', '--username',
2749                                 dest='username', metavar='USERNAME', help='account username')
2750                 authentication.add_option('-p', '--password',
2751                                 dest='password', metavar='PASSWORD', help='account password')
2752                 authentication.add_option('-n', '--netrc',
2753                                 action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)
2754                 parser.add_option_group(authentication)
2755
2756                 video_format = optparse.OptionGroup(parser, 'Video Format Options')
2757                 video_format.add_option('-f', '--format',
2758                                 action='store', dest='format', metavar='FORMAT', help='video format code')
2759                 video_format.add_option('--all-formats',
2760                                 action='store_const', dest='format', help='download all available video formats', const='-1')
2761                 video_format.add_option('--max-quality',
2762                                 action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
2763                 parser.add_option_group(video_format)
2764
2765                 verbosity = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')
2766                 verbosity.add_option('-q', '--quiet',
2767                                 action='store_true', dest='quiet', help='activates quiet mode', default=False)
2768                 verbosity.add_option('-s', '--simulate',
2769                                 action='store_true', dest='simulate', help='do not download video', default=False)
2770                 verbosity.add_option('-g', '--get-url',
2771                                 action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
2772                 verbosity.add_option('-e', '--get-title',
2773                                 action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
2774                 verbosity.add_option('--get-thumbnail',
2775                                 action='store_true', dest='getthumbnail',
2776                                 help='simulate, quiet but print thumbnail URL', default=False)
2777                 verbosity.add_option('--get-description',
2778                                 action='store_true', dest='getdescription',
2779                                 help='simulate, quiet but print video description', default=False)
2780                 verbosity.add_option('--get-filename',
2781                                 action='store_true', dest='getfilename',
2782                                 help='simulate, quiet but print output filename', default=False)
2783                 verbosity.add_option('--no-progress',
2784                                 action='store_true', dest='noprogress', help='do not print progress bar', default=False)
2785                 verbosity.add_option('--console-title',
2786                                 action='store_true', dest='consoletitle',
2787                                 help='display progress in console titlebar', default=False)
2788                 parser.add_option_group(verbosity)
2789
2790                 filesystem = optparse.OptionGroup(parser, 'Filesystem Options')
2791                 filesystem.add_option('-t', '--title',
2792                                 action='store_true', dest='usetitle', help='use title in file name', default=False)
2793                 filesystem.add_option('-l', '--literal',
2794                                 action='store_true', dest='useliteral', help='use literal title in file name', default=False)
2795                 filesystem.add_option('-A', '--auto-number',
2796                                 action='store_true', dest='autonumber',
2797                                 help='number downloaded files starting from 00000', default=False)
2798                 filesystem.add_option('-o', '--output',
2799                                 dest='outtmpl', metavar='TEMPLATE', help='output filename template')
2800                 filesystem.add_option('-a', '--batch-file',
2801                                 dest='batchfile', metavar='FILE', help='file containing URLs to download (\'-\' for stdin)')
2802                 filesystem.add_option('-w', '--no-overwrites',
2803                                 action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
2804                 filesystem.add_option('-c', '--continue',
2805                                 action='store_true', dest='continue_dl', help='resume partially downloaded files', default=False)
2806                 filesystem.add_option('--cookies',
2807                                 dest='cookiefile', metavar='FILE', help='file to dump cookie jar to')
2808                 filesystem.add_option('--no-part',
2809                                 action='store_true', dest='nopart', help='do not use .part files', default=False)
2810                 filesystem.add_option('--no-mtime',
2811                                 action='store_false', dest='updatetime',
2812                                 help='do not use the Last-modified header to set the file modification time', default=True)
2813                 parser.add_option_group(filesystem)
2814
2815                 postproc = optparse.OptionGroup(parser, 'Post-processing Options')
2816                 postproc.add_option('--extract-audio', action='store_true', dest='extractaudio', default=False,
2817                                 help='convert video files to audio-only files (requires ffmpeg and ffprobe)')
2818                 postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
2819                                 help='"best", "aac" or "mp3"; best by default')
2820                 parser.add_option_group(postproc)
2821
2822                 (opts, args) = parser.parse_args()
2823
2824                 # Open appropriate CookieJar
2825                 if opts.cookiefile is None:
2826                         jar = cookielib.CookieJar()
2827                 else:
2828                         try:
2829                                 jar = cookielib.MozillaCookieJar(opts.cookiefile)
2830                                 if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
2831                                         jar.load()
2832                         except (IOError, OSError), err:
2833                                 sys.exit(u'ERROR: unable to open cookie file')
2834
2835                 # Dump user agent
2836                 if opts.dump_user_agent:
2837                         print std_headers['User-Agent']
2838                         sys.exit(0)
2839
2840                 # General configuration
2841                 cookie_processor = urllib2.HTTPCookieProcessor(jar)
2842                 urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler(), cookie_processor, YoutubeDLHandler()))
2843                 socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)
2844
2845                 # Batch file verification
2846                 batchurls = []
2847                 if opts.batchfile is not None:
2848                         try:
2849                                 if opts.batchfile == '-':
2850                                         batchfd = sys.stdin
2851                                 else:
2852                                         batchfd = open(opts.batchfile, 'r')
2853                                 batchurls = batchfd.readlines()
2854                                 batchurls = [x.strip() for x in batchurls]
2855                                 batchurls = [x for x in batchurls if len(x) > 0 and not re.search(r'^[#/;]', x)]
2856                         except IOError:
2857                                 sys.exit(u'ERROR: batch file could not be read')
2858                 all_urls = batchurls + args
2859
2860                 # Conflicting, missing and erroneous options
2861                 if opts.usenetrc and (opts.username is not None or opts.password is not None):
2862                         parser.error(u'using .netrc conflicts with giving username/password')
2863                 if opts.password is not None and opts.username is None:
2864                         parser.error(u'account username missing')
2865                 if opts.outtmpl is not None and (opts.useliteral or opts.usetitle or opts.autonumber):
2866                         parser.error(u'using output template conflicts with using title, literal title or auto number')
2867                 if opts.usetitle and opts.useliteral:
2868                         parser.error(u'using title conflicts with using literal title')
2869                 if opts.username is not None and opts.password is None:
2870                         opts.password = getpass.getpass(u'Type account password and press return:')
2871                 if opts.ratelimit is not None:
2872                         numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
2873                         if numeric_limit is None:
2874                                 parser.error(u'invalid rate limit specified')
2875                         opts.ratelimit = numeric_limit
2876                 if opts.retries is not None:
2877                         try:
2878                                 opts.retries = long(opts.retries)
2879                         except (TypeError, ValueError), err:
2880                                 parser.error(u'invalid retry count specified')
2881                 try:
2882                         opts.playliststart = long(opts.playliststart)
2883                         if opts.playliststart <= 0:
2884                                 raise ValueError
2885                 except (TypeError, ValueError), err:
2886                         parser.error(u'invalid playlist start number specified')
2887                 try:
2888                         opts.playlistend = long(opts.playlistend)
2889                         if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
2890                                 raise ValueError
2891                 except (TypeError, ValueError), err:
2892                         parser.error(u'invalid playlist end number specified')
2893                 if opts.extractaudio:
2894                         if opts.audioformat not in ['best', 'aac', 'mp3']:
2895                                 parser.error(u'invalid audio format specified')
2896
2897                 # Information extractors
2898                 youtube_ie = YoutubeIE()
2899                 metacafe_ie = MetacafeIE(youtube_ie)
2900                 dailymotion_ie = DailymotionIE()
2901                 youtube_pl_ie = YoutubePlaylistIE(youtube_ie)
2902                 youtube_user_ie = YoutubeUserIE(youtube_ie)
2903                 youtube_search_ie = YoutubeSearchIE(youtube_ie)
2904                 google_ie = GoogleIE()
2905                 google_search_ie = GoogleSearchIE(google_ie)
2906                 photobucket_ie = PhotobucketIE()
2907                 yahoo_ie = YahooIE()
2908                 yahoo_search_ie = YahooSearchIE(yahoo_ie)
2909                 deposit_files_ie = DepositFilesIE()
2910                 facebook_ie = FacebookIE()
2911                 generic_ie = GenericIE()
2912
2913                 # File downloader
2914                 fd = FileDownloader({
2915                         'usenetrc': opts.usenetrc,
2916                         'username': opts.username,
2917                         'password': opts.password,
2918                         'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename),
2919                         'forceurl': opts.geturl,
2920                         'forcetitle': opts.gettitle,
2921                         'forcethumbnail': opts.getthumbnail,
2922                         'forcedescription': opts.getdescription,
2923                         'forcefilename': opts.getfilename,
2924                         'simulate': (opts.simulate or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename),
2925                         'format': opts.format,
2926                         'format_limit': opts.format_limit,
2927                         'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
2928                                 or (opts.format == '-1' and opts.usetitle and u'%(stitle)s-%(id)s-%(format)s.%(ext)s')
2929                                 or (opts.format == '-1' and opts.useliteral and u'%(title)s-%(id)s-%(format)s.%(ext)s')
2930                                 or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')
2931                                 or (opts.usetitle and opts.autonumber and u'%(autonumber)s-%(stitle)s-%(id)s.%(ext)s')
2932                                 or (opts.useliteral and opts.autonumber and u'%(autonumber)s-%(title)s-%(id)s.%(ext)s')
2933                                 or (opts.usetitle and u'%(stitle)s-%(id)s.%(ext)s')
2934                                 or (opts.useliteral and u'%(title)s-%(id)s.%(ext)s')
2935                                 or (opts.autonumber and u'%(autonumber)s-%(id)s.%(ext)s')
2936                                 or u'%(id)s.%(ext)s'),
2937                         'ignoreerrors': opts.ignoreerrors,
2938                         'ratelimit': opts.ratelimit,
2939                         'nooverwrites': opts.nooverwrites,
2940                         'retries': opts.retries,
2941                         'continuedl': opts.continue_dl,
2942                         'noprogress': opts.noprogress,
2943                         'playliststart': opts.playliststart,
2944                         'playlistend': opts.playlistend,
2945                         'logtostderr': opts.outtmpl == '-',
2946                         'consoletitle': opts.consoletitle,
2947                         'nopart': opts.nopart,
2948                         'updatetime': opts.updatetime,
2949                         })
2950                 fd.add_info_extractor(youtube_search_ie)
2951                 fd.add_info_extractor(youtube_pl_ie)
2952                 fd.add_info_extractor(youtube_user_ie)
2953                 fd.add_info_extractor(metacafe_ie)
2954                 fd.add_info_extractor(dailymotion_ie)
2955                 fd.add_info_extractor(youtube_ie)
2956                 fd.add_info_extractor(google_ie)
2957                 fd.add_info_extractor(google_search_ie)
2958                 fd.add_info_extractor(photobucket_ie)
2959                 fd.add_info_extractor(yahoo_ie)
2960                 fd.add_info_extractor(yahoo_search_ie)
2961                 fd.add_info_extractor(deposit_files_ie)
2962                 fd.add_info_extractor(facebook_ie)
2963
2964                 # This must come last since it's the
2965                 # fallback if none of the others work
2966                 fd.add_info_extractor(generic_ie)
2967
2968                 # PostProcessors
2969                 if opts.extractaudio:
2970                         fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat))
2971
2972                 # Update version
2973                 if opts.update_self:
2974                         update_self(fd, sys.argv[0])
2975
2976                 # Maybe do nothing
2977                 if len(all_urls) < 1:
2978                         if not opts.update_self:
2979                                 parser.error(u'you must provide at least one URL')
2980                         else:
2981                                 sys.exit()
2982                 retcode = fd.download(all_urls)
2983
2984                 # Dump cookie jar if requested
2985                 if opts.cookiefile is not None:
2986                         try:
2987                                 jar.save()
2988                         except (IOError, OSError), err:
2989                                 sys.exit(u'ERROR: unable to save cookie jar')
2990
2991                 sys.exit(retcode)
2992
2993         except DownloadError:
2994                 sys.exit(1)
2995         except SameFileError:
2996                 sys.exit(u'ERROR: fixed output name but more than one file to download')
2997         except KeyboardInterrupt:
2998                 sys.exit(u'\nERROR: Interrupted by user')