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:5.0.1) Gecko/20100101 Firefox/5.0.1',
  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|e)/)|(?:(?: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 'url_encoded_fmt_stream_map' in video_info and len(video_info['url_encoded_fmt_stream_map']) >= 1:
1083                         url_data_strs = video_info['url_encoded_fmt_stream_map'][0].split(',')
1084                         url_data = [dict(pairStr.split('=') for pairStr in uds.split('&')) for uds in url_data_strs]
1085                         url_map = dict((ud['itag'], urllib.unquote(ud['url'])) for ud in url_data)
1086                         format_limit = self._downloader.params.get('format_limit', None)
1087                         if format_limit is not None and format_limit in self._available_formats:
1088                                 format_list = self._available_formats[self._available_formats.index(format_limit):]
1089                         else:
1090                                 format_list = self._available_formats
1091                         existing_formats = [x for x in format_list if x in url_map]
1092                         if len(existing_formats) == 0:
1093                                 self._downloader.trouble(u'ERROR: no known formats available for video')
1094                                 return
1095                         if req_format is None:
1096                                 video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
1097                         elif req_format == '-1':
1098                                 video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
1099                         else:
1100                                 # Specific format
1101                                 if req_format not in url_map:
1102                                         self._downloader.trouble(u'ERROR: requested format not available')
1103                                         return
1104                                 video_url_list = [(req_format, url_map[req_format])] # Specific format
1105
1106                 elif 'conn' in video_info and video_info['conn'][0].startswith('rtmp'):
1107                         self.report_rtmp_download()
1108                         video_url_list = [(None, video_info['conn'][0])]
1109
1110                 else:
1111                         self._downloader.trouble(u'ERROR: no fmt_url_map or conn information found in video info')
1112                         return
1113
1114                 for format_param, video_real_url in video_url_list:
1115                         # At this point we have a new video
1116                         self._downloader.increment_downloads()
1117
1118                         # Extension
1119                         video_extension = self._video_extensions.get(format_param, 'flv')
1120
1121                         # Find the video URL in fmt_url_map or conn paramters
1122                         try:
1123                                 # Process video information
1124                                 self._downloader.process_info({
1125                                         'id':           video_id.decode('utf-8'),
1126                                         'url':          video_real_url.decode('utf-8'),
1127                                         'uploader':     video_uploader.decode('utf-8'),
1128                                         'upload_date':  upload_date,
1129                                         'title':        video_title,
1130                                         'stitle':       simple_title,
1131                                         'ext':          video_extension.decode('utf-8'),
1132                                         'format':       (format_param is None and u'NA' or format_param.decode('utf-8')),
1133                                         'thumbnail':    video_thumbnail.decode('utf-8'),
1134                                         'description':  video_description.decode('utf-8'),
1135                                         'player_url':   player_url,
1136                                 })
1137                         except UnavailableVideoError, err:
1138                                 self._downloader.trouble(u'\nERROR: unable to download video')
1139
1140
1141 class MetacafeIE(InfoExtractor):
1142         """Information Extractor for metacafe.com."""
1143
1144         _VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*'
1145         _DISCLAIMER = 'http://www.metacafe.com/family_filter/'
1146         _FILTER_POST = 'http://www.metacafe.com/f/index.php?inputType=filter&controllerGroup=user'
1147         _youtube_ie = None
1148
1149         def __init__(self, youtube_ie, downloader=None):
1150                 InfoExtractor.__init__(self, downloader)
1151                 self._youtube_ie = youtube_ie
1152
1153         @staticmethod
1154         def suitable(url):
1155                 return (re.match(MetacafeIE._VALID_URL, url) is not None)
1156
1157         def report_disclaimer(self):
1158                 """Report disclaimer retrieval."""
1159                 self._downloader.to_screen(u'[metacafe] Retrieving disclaimer')
1160
1161         def report_age_confirmation(self):
1162                 """Report attempt to confirm age."""
1163                 self._downloader.to_screen(u'[metacafe] Confirming age')
1164
1165         def report_download_webpage(self, video_id):
1166                 """Report webpage download."""
1167                 self._downloader.to_screen(u'[metacafe] %s: Downloading webpage' % video_id)
1168
1169         def report_extraction(self, video_id):
1170                 """Report information extraction."""
1171                 self._downloader.to_screen(u'[metacafe] %s: Extracting information' % video_id)
1172
1173         def _real_initialize(self):
1174                 # Retrieve disclaimer
1175                 request = urllib2.Request(self._DISCLAIMER)
1176                 try:
1177                         self.report_disclaimer()
1178                         disclaimer = urllib2.urlopen(request).read()
1179                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1180                         self._downloader.trouble(u'ERROR: unable to retrieve disclaimer: %s' % str(err))
1181                         return
1182
1183                 # Confirm age
1184                 disclaimer_form = {
1185                         'filters': '0',
1186                         'submit': "Continue - I'm over 18",
1187                         }
1188                 request = urllib2.Request(self._FILTER_POST, urllib.urlencode(disclaimer_form))
1189                 try:
1190                         self.report_age_confirmation()
1191                         disclaimer = urllib2.urlopen(request).read()
1192                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1193                         self._downloader.trouble(u'ERROR: unable to confirm age: %s' % str(err))
1194                         return
1195
1196         def _real_extract(self, url):
1197                 # Extract id and simplified title from URL
1198                 mobj = re.match(self._VALID_URL, url)
1199                 if mobj is None:
1200                         self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
1201                         return
1202
1203                 video_id = mobj.group(1)
1204
1205                 # Check if video comes from YouTube
1206                 mobj2 = re.match(r'^yt-(.*)$', video_id)
1207                 if mobj2 is not None:
1208                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % mobj2.group(1))
1209                         return
1210
1211                 # At this point we have a new video
1212                 self._downloader.increment_downloads()
1213
1214                 simple_title = mobj.group(2).decode('utf-8')
1215
1216                 # Retrieve video webpage to extract further information
1217                 request = urllib2.Request('http://www.metacafe.com/watch/%s/' % video_id)
1218                 try:
1219                         self.report_download_webpage(video_id)
1220                         webpage = urllib2.urlopen(request).read()
1221                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1222                         self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
1223                         return
1224
1225                 # Extract URL, uploader and title from webpage
1226                 self.report_extraction(video_id)
1227                 mobj = re.search(r'(?m)&mediaURL=([^&]+)', webpage)
1228                 if mobj is not None:
1229                         mediaURL = urllib.unquote(mobj.group(1))
1230                         video_extension = mediaURL[-3:]
1231
1232                         # Extract gdaKey if available
1233                         mobj = re.search(r'(?m)&gdaKey=(.*?)&', webpage)
1234                         if mobj is None:
1235                                 video_url = mediaURL
1236                         else:
1237                                 gdaKey = mobj.group(1)
1238                                 video_url = '%s?__gda__=%s' % (mediaURL, gdaKey)
1239                 else:
1240                         mobj = re.search(r' name="flashvars" value="(.*?)"', webpage)
1241                         if mobj is None:
1242                                 self._downloader.trouble(u'ERROR: unable to extract media URL')
1243                                 return
1244                         vardict = parse_qs(mobj.group(1))
1245                         if 'mediaData' not in vardict:
1246                                 self._downloader.trouble(u'ERROR: unable to extract media URL')
1247                                 return
1248                         mobj = re.search(r'"mediaURL":"(http.*?)","key":"(.*?)"', vardict['mediaData'][0])
1249                         if mobj is None:
1250                                 self._downloader.trouble(u'ERROR: unable to extract media URL')
1251                                 return
1252                         mediaURL = mobj.group(1).replace('\\/', '/')
1253                         video_extension = mediaURL[-3:]
1254                         video_url = '%s?__gda__=%s' % (mediaURL, mobj.group(2))
1255
1256                 mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage)
1257                 if mobj is None:
1258                         self._downloader.trouble(u'ERROR: unable to extract title')
1259                         return
1260                 video_title = mobj.group(1).decode('utf-8')
1261                 video_title = sanitize_title(video_title)
1262
1263                 mobj = re.search(r'(?ms)By:\s*<a .*?>(.+?)<', webpage)
1264                 if mobj is None:
1265                         self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
1266                         return
1267                 video_uploader = mobj.group(1)
1268
1269                 try:
1270                         # Process video information
1271                         self._downloader.process_info({
1272                                 'id':           video_id.decode('utf-8'),
1273                                 'url':          video_url.decode('utf-8'),
1274                                 'uploader':     video_uploader.decode('utf-8'),
1275                                 'upload_date':  u'NA',
1276                                 'title':        video_title,
1277                                 'stitle':       simple_title,
1278                                 'ext':          video_extension.decode('utf-8'),
1279                                 'format':       u'NA',
1280                                 'player_url':   None,
1281                         })
1282                 except UnavailableVideoError:
1283                         self._downloader.trouble(u'\nERROR: unable to download video')
1284
1285
1286 class DailymotionIE(InfoExtractor):
1287         """Information Extractor for Dailymotion"""
1288
1289         _VALID_URL = r'(?i)(?:https?://)?(?:www\.)?dailymotion\.[a-z]{2,3}/video/([^_/]+)_([^/]+)'
1290
1291         def __init__(self, downloader=None):
1292                 InfoExtractor.__init__(self, downloader)
1293
1294         @staticmethod
1295         def suitable(url):
1296                 return (re.match(DailymotionIE._VALID_URL, url) is not None)
1297
1298         def report_download_webpage(self, video_id):
1299                 """Report webpage download."""
1300                 self._downloader.to_screen(u'[dailymotion] %s: Downloading webpage' % video_id)
1301
1302         def report_extraction(self, video_id):
1303                 """Report information extraction."""
1304                 self._downloader.to_screen(u'[dailymotion] %s: Extracting information' % video_id)
1305
1306         def _real_initialize(self):
1307                 return
1308
1309         def _real_extract(self, url):
1310                 # Extract id and simplified title from URL
1311                 mobj = re.match(self._VALID_URL, url)
1312                 if mobj is None:
1313                         self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
1314                         return
1315
1316                 # At this point we have a new video
1317                 self._downloader.increment_downloads()
1318                 video_id = mobj.group(1)
1319
1320                 simple_title = mobj.group(2).decode('utf-8')
1321                 video_extension = 'flv'
1322
1323                 # Retrieve video webpage to extract further information
1324                 request = urllib2.Request(url)
1325                 try:
1326                         self.report_download_webpage(video_id)
1327                         webpage = urllib2.urlopen(request).read()
1328                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1329                         self._downloader.trouble(u'ERROR: unable retrieve video webpage: %s' % str(err))
1330                         return
1331
1332                 # Extract URL, uploader and title from webpage
1333                 self.report_extraction(video_id)
1334                 mobj = re.search(r'(?i)addVariable\(\"video\"\s*,\s*\"([^\"]*)\"\)', webpage)
1335                 if mobj is None:
1336                         self._downloader.trouble(u'ERROR: unable to extract media URL')
1337                         return
1338                 mediaURL = urllib.unquote(mobj.group(1))
1339
1340                 # if needed add http://www.dailymotion.com/ if relative URL
1341
1342                 video_url = mediaURL
1343
1344                 # '<meta\s+name="title"\s+content="Dailymotion\s*[:\-]\s*(.*?)"\s*\/\s*>'
1345                 mobj = re.search(r'(?im)<title>Dailymotion\s*[\-:]\s*(.+?)</title>', webpage)
1346                 if mobj is None:
1347                         self._downloader.trouble(u'ERROR: unable to extract title')
1348                         return
1349                 video_title = mobj.group(1).decode('utf-8')
1350                 video_title = sanitize_title(video_title)
1351
1352                 mobj = re.search(r'(?im)<Attribute name="owner">(.+?)</Attribute>', webpage)
1353                 if mobj is None:
1354                         self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
1355                         return
1356                 video_uploader = mobj.group(1)
1357
1358                 try:
1359                         # Process video information
1360                         self._downloader.process_info({
1361                                 'id':           video_id.decode('utf-8'),
1362                                 'url':          video_url.decode('utf-8'),
1363                                 'uploader':     video_uploader.decode('utf-8'),
1364                                 'upload_date':  u'NA',
1365                                 'title':        video_title,
1366                                 'stitle':       simple_title,
1367                                 'ext':          video_extension.decode('utf-8'),
1368                                 'format':       u'NA',
1369                                 'player_url':   None,
1370                         })
1371                 except UnavailableVideoError:
1372                         self._downloader.trouble(u'\nERROR: unable to download video')
1373
1374 class GoogleIE(InfoExtractor):
1375         """Information extractor for video.google.com."""
1376
1377         _VALID_URL = r'(?:http://)?video\.google\.(?:com(?:\.au)?|co\.(?:uk|jp|kr|cr)|ca|de|es|fr|it|nl|pl)/videoplay\?docid=([^\&]+).*'
1378
1379         def __init__(self, downloader=None):
1380                 InfoExtractor.__init__(self, downloader)
1381
1382         @staticmethod
1383         def suitable(url):
1384                 return (re.match(GoogleIE._VALID_URL, url) is not None)
1385
1386         def report_download_webpage(self, video_id):
1387                 """Report webpage download."""
1388                 self._downloader.to_screen(u'[video.google] %s: Downloading webpage' % video_id)
1389
1390         def report_extraction(self, video_id):
1391                 """Report information extraction."""
1392                 self._downloader.to_screen(u'[video.google] %s: Extracting information' % video_id)
1393
1394         def _real_initialize(self):
1395                 return
1396
1397         def _real_extract(self, url):
1398                 # Extract id from URL
1399                 mobj = re.match(self._VALID_URL, url)
1400                 if mobj is None:
1401                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1402                         return
1403
1404                 # At this point we have a new video
1405                 self._downloader.increment_downloads()
1406                 video_id = mobj.group(1)
1407
1408                 video_extension = 'mp4'
1409
1410                 # Retrieve video webpage to extract further information
1411                 request = urllib2.Request('http://video.google.com/videoplay?docid=%s&hl=en&oe=utf-8' % video_id)
1412                 try:
1413                         self.report_download_webpage(video_id)
1414                         webpage = urllib2.urlopen(request).read()
1415                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1416                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1417                         return
1418
1419                 # Extract URL, uploader, and title from webpage
1420                 self.report_extraction(video_id)
1421                 mobj = re.search(r"download_url:'([^']+)'", webpage)
1422                 if mobj is None:
1423                         video_extension = 'flv'
1424                         mobj = re.search(r"(?i)videoUrl\\x3d(.+?)\\x26", webpage)
1425                 if mobj is None:
1426                         self._downloader.trouble(u'ERROR: unable to extract media URL')
1427                         return
1428                 mediaURL = urllib.unquote(mobj.group(1))
1429                 mediaURL = mediaURL.replace('\\x3d', '\x3d')
1430                 mediaURL = mediaURL.replace('\\x26', '\x26')
1431
1432                 video_url = mediaURL
1433
1434                 mobj = re.search(r'<title>(.*)</title>', webpage)
1435                 if mobj is None:
1436                         self._downloader.trouble(u'ERROR: unable to extract title')
1437                         return
1438                 video_title = mobj.group(1).decode('utf-8')
1439                 video_title = sanitize_title(video_title)
1440                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1441
1442                 # Extract video description
1443                 mobj = re.search(r'<span id=short-desc-content>([^<]*)</span>', webpage)
1444                 if mobj is None:
1445                         self._downloader.trouble(u'ERROR: unable to extract video description')
1446                         return
1447                 video_description = mobj.group(1).decode('utf-8')
1448                 if not video_description:
1449                         video_description = 'No description available.'
1450
1451                 # Extract video thumbnail
1452                 if self._downloader.params.get('forcethumbnail', False):
1453                         request = urllib2.Request('http://video.google.com/videosearch?q=%s+site:video.google.com&hl=en' % abs(int(video_id)))
1454                         try:
1455                                 webpage = urllib2.urlopen(request).read()
1456                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1457                                 self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1458                                 return
1459                         mobj = re.search(r'<img class=thumbnail-img (?:.* )?src=(http.*)>', webpage)
1460                         if mobj is None:
1461                                 self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
1462                                 return
1463                         video_thumbnail = mobj.group(1)
1464                 else:   # we need something to pass to process_info
1465                         video_thumbnail = ''
1466
1467
1468                 try:
1469                         # Process video information
1470                         self._downloader.process_info({
1471                                 'id':           video_id.decode('utf-8'),
1472                                 'url':          video_url.decode('utf-8'),
1473                                 'uploader':     u'NA',
1474                                 'upload_date':  u'NA',
1475                                 'title':        video_title,
1476                                 'stitle':       simple_title,
1477                                 'ext':          video_extension.decode('utf-8'),
1478                                 'format':       u'NA',
1479                                 'player_url':   None,
1480                         })
1481                 except UnavailableVideoError:
1482                         self._downloader.trouble(u'\nERROR: unable to download video')
1483
1484
1485 class PhotobucketIE(InfoExtractor):
1486         """Information extractor for photobucket.com."""
1487
1488         _VALID_URL = r'(?:http://)?(?:[a-z0-9]+\.)?photobucket\.com/.*[\?\&]current=(.*\.flv)'
1489
1490         def __init__(self, downloader=None):
1491                 InfoExtractor.__init__(self, downloader)
1492
1493         @staticmethod
1494         def suitable(url):
1495                 return (re.match(PhotobucketIE._VALID_URL, url) is not None)
1496
1497         def report_download_webpage(self, video_id):
1498                 """Report webpage download."""
1499                 self._downloader.to_screen(u'[photobucket] %s: Downloading webpage' % video_id)
1500
1501         def report_extraction(self, video_id):
1502                 """Report information extraction."""
1503                 self._downloader.to_screen(u'[photobucket] %s: Extracting information' % video_id)
1504
1505         def _real_initialize(self):
1506                 return
1507
1508         def _real_extract(self, url):
1509                 # Extract id from URL
1510                 mobj = re.match(self._VALID_URL, url)
1511                 if mobj is None:
1512                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1513                         return
1514
1515                 # At this point we have a new video
1516                 self._downloader.increment_downloads()
1517                 video_id = mobj.group(1)
1518
1519                 video_extension = 'flv'
1520
1521                 # Retrieve video webpage to extract further information
1522                 request = urllib2.Request(url)
1523                 try:
1524                         self.report_download_webpage(video_id)
1525                         webpage = urllib2.urlopen(request).read()
1526                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1527                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1528                         return
1529
1530                 # Extract URL, uploader, and title from webpage
1531                 self.report_extraction(video_id)
1532                 mobj = re.search(r'<link rel="video_src" href=".*\?file=([^"]+)" />', webpage)
1533                 if mobj is None:
1534                         self._downloader.trouble(u'ERROR: unable to extract media URL')
1535                         return
1536                 mediaURL = urllib.unquote(mobj.group(1))
1537
1538                 video_url = mediaURL
1539
1540                 mobj = re.search(r'<title>(.*) video by (.*) - Photobucket</title>', webpage)
1541                 if mobj is None:
1542                         self._downloader.trouble(u'ERROR: unable to extract title')
1543                         return
1544                 video_title = mobj.group(1).decode('utf-8')
1545                 video_title = sanitize_title(video_title)
1546                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1547
1548                 video_uploader = mobj.group(2).decode('utf-8')
1549
1550                 try:
1551                         # Process video information
1552                         self._downloader.process_info({
1553                                 'id':           video_id.decode('utf-8'),
1554                                 'url':          video_url.decode('utf-8'),
1555                                 'uploader':     video_uploader,
1556                                 'upload_date':  u'NA',
1557                                 'title':        video_title,
1558                                 'stitle':       simple_title,
1559                                 'ext':          video_extension.decode('utf-8'),
1560                                 'format':       u'NA',
1561                                 'player_url':   None,
1562                         })
1563                 except UnavailableVideoError:
1564                         self._downloader.trouble(u'\nERROR: unable to download video')
1565
1566
1567 class YahooIE(InfoExtractor):
1568         """Information extractor for video.yahoo.com."""
1569
1570         # _VALID_URL matches all Yahoo! Video URLs
1571         # _VPAGE_URL matches only the extractable '/watch/' URLs
1572         _VALID_URL = r'(?:http://)?(?:[a-z]+\.)?video\.yahoo\.com/(?:watch|network)/([0-9]+)(?:/|\?v=)([0-9]+)(?:[#\?].*)?'
1573         _VPAGE_URL = r'(?:http://)?video\.yahoo\.com/watch/([0-9]+)/([0-9]+)(?:[#\?].*)?'
1574
1575         def __init__(self, downloader=None):
1576                 InfoExtractor.__init__(self, downloader)
1577
1578         @staticmethod
1579         def suitable(url):
1580                 return (re.match(YahooIE._VALID_URL, url) is not None)
1581
1582         def report_download_webpage(self, video_id):
1583                 """Report webpage download."""
1584                 self._downloader.to_screen(u'[video.yahoo] %s: Downloading webpage' % video_id)
1585
1586         def report_extraction(self, video_id):
1587                 """Report information extraction."""
1588                 self._downloader.to_screen(u'[video.yahoo] %s: Extracting information' % video_id)
1589
1590         def _real_initialize(self):
1591                 return
1592
1593         def _real_extract(self, url, new_video=True):
1594                 # Extract ID from URL
1595                 mobj = re.match(self._VALID_URL, url)
1596                 if mobj is None:
1597                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1598                         return
1599
1600                 # At this point we have a new video
1601                 self._downloader.increment_downloads()
1602                 video_id = mobj.group(2)
1603                 video_extension = 'flv'
1604
1605                 # Rewrite valid but non-extractable URLs as
1606                 # extractable English language /watch/ URLs
1607                 if re.match(self._VPAGE_URL, url) is None:
1608                         request = urllib2.Request(url)
1609                         try:
1610                                 webpage = urllib2.urlopen(request).read()
1611                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1612                                 self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1613                                 return
1614
1615                         mobj = re.search(r'\("id", "([0-9]+)"\);', webpage)
1616                         if mobj is None:
1617                                 self._downloader.trouble(u'ERROR: Unable to extract id field')
1618                                 return
1619                         yahoo_id = mobj.group(1)
1620
1621                         mobj = re.search(r'\("vid", "([0-9]+)"\);', webpage)
1622                         if mobj is None:
1623                                 self._downloader.trouble(u'ERROR: Unable to extract vid field')
1624                                 return
1625                         yahoo_vid = mobj.group(1)
1626
1627                         url = 'http://video.yahoo.com/watch/%s/%s' % (yahoo_vid, yahoo_id)
1628                         return self._real_extract(url, new_video=False)
1629
1630                 # Retrieve video webpage to extract further information
1631                 request = urllib2.Request(url)
1632                 try:
1633                         self.report_download_webpage(video_id)
1634                         webpage = urllib2.urlopen(request).read()
1635                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1636                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1637                         return
1638
1639                 # Extract uploader and title from webpage
1640                 self.report_extraction(video_id)
1641                 mobj = re.search(r'<meta name="title" content="(.*)" />', webpage)
1642                 if mobj is None:
1643                         self._downloader.trouble(u'ERROR: unable to extract video title')
1644                         return
1645                 video_title = mobj.group(1).decode('utf-8')
1646                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1647
1648                 mobj = re.search(r'<h2 class="ti-5"><a href="http://video\.yahoo\.com/(people|profile)/[0-9]+" beacon=".*">(.*)</a></h2>', webpage)
1649                 if mobj is None:
1650                         self._downloader.trouble(u'ERROR: unable to extract video uploader')
1651                         return
1652                 video_uploader = mobj.group(1).decode('utf-8')
1653
1654                 # Extract video thumbnail
1655                 mobj = re.search(r'<link rel="image_src" href="(.*)" />', webpage)
1656                 if mobj is None:
1657                         self._downloader.trouble(u'ERROR: unable to extract video thumbnail')
1658                         return
1659                 video_thumbnail = mobj.group(1).decode('utf-8')
1660
1661                 # Extract video description
1662                 mobj = re.search(r'<meta name="description" content="(.*)" />', webpage)
1663                 if mobj is None:
1664                         self._downloader.trouble(u'ERROR: unable to extract video description')
1665                         return
1666                 video_description = mobj.group(1).decode('utf-8')
1667                 if not video_description: video_description = 'No description available.'
1668
1669                 # Extract video height and width
1670                 mobj = re.search(r'<meta name="video_height" content="([0-9]+)" />', webpage)
1671                 if mobj is None:
1672                         self._downloader.trouble(u'ERROR: unable to extract video height')
1673                         return
1674                 yv_video_height = mobj.group(1)
1675
1676                 mobj = re.search(r'<meta name="video_width" content="([0-9]+)" />', webpage)
1677                 if mobj is None:
1678                         self._downloader.trouble(u'ERROR: unable to extract video width')
1679                         return
1680                 yv_video_width = mobj.group(1)
1681
1682                 # Retrieve video playlist to extract media URL
1683                 # I'm not completely sure what all these options are, but we
1684                 # seem to need most of them, otherwise the server sends a 401.
1685                 yv_lg = 'R0xx6idZnW2zlrKP8xxAIR'  # not sure what this represents
1686                 yv_bitrate = '700'  # according to Wikipedia this is hard-coded
1687                 request = urllib2.Request('http://cosmos.bcst.yahoo.com/up/yep/process/getPlaylistFOP.php?node_id=' + video_id +
1688                                           '&tech=flash&mode=playlist&lg=' + yv_lg + '&bitrate=' + yv_bitrate + '&vidH=' + yv_video_height +
1689                                           '&vidW=' + yv_video_width + '&swf=as3&rd=video.yahoo.com&tk=null&adsupported=v1,v2,&eventid=1301797')
1690                 try:
1691                         self.report_download_webpage(video_id)
1692                         webpage = urllib2.urlopen(request).read()
1693                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1694                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1695                         return
1696
1697                 # Extract media URL from playlist XML
1698                 mobj = re.search(r'<STREAM APP="(http://.*)" FULLPATH="/?(/.*\.flv\?[^"]*)"', webpage)
1699                 if mobj is None:
1700                         self._downloader.trouble(u'ERROR: Unable to extract media URL')
1701                         return
1702                 video_url = urllib.unquote(mobj.group(1) + mobj.group(2)).decode('utf-8')
1703                 video_url = re.sub(r'(?u)&(.+?);', htmlentity_transform, video_url)
1704
1705                 try:
1706                         # Process video information
1707                         self._downloader.process_info({
1708                                 'id':           video_id.decode('utf-8'),
1709                                 'url':          video_url,
1710                                 'uploader':     video_uploader,
1711                                 'upload_date':  u'NA',
1712                                 'title':        video_title,
1713                                 'stitle':       simple_title,
1714                                 'ext':          video_extension.decode('utf-8'),
1715                                 'thumbnail':    video_thumbnail.decode('utf-8'),
1716                                 'description':  video_description,
1717                                 'thumbnail':    video_thumbnail,
1718                                 'description':  video_description,
1719                                 'player_url':   None,
1720                         })
1721                 except UnavailableVideoError:
1722                         self._downloader.trouble(u'\nERROR: unable to download video')
1723
1724
1725 class GenericIE(InfoExtractor):
1726         """Generic last-resort information extractor."""
1727
1728         def __init__(self, downloader=None):
1729                 InfoExtractor.__init__(self, downloader)
1730
1731         @staticmethod
1732         def suitable(url):
1733                 return True
1734
1735         def report_download_webpage(self, video_id):
1736                 """Report webpage download."""
1737                 self._downloader.to_screen(u'WARNING: Falling back on generic information extractor.')
1738                 self._downloader.to_screen(u'[generic] %s: Downloading webpage' % video_id)
1739
1740         def report_extraction(self, video_id):
1741                 """Report information extraction."""
1742                 self._downloader.to_screen(u'[generic] %s: Extracting information' % video_id)
1743
1744         def _real_initialize(self):
1745                 return
1746
1747         def _real_extract(self, url):
1748                 # At this point we have a new video
1749                 self._downloader.increment_downloads()
1750
1751                 video_id = url.split('/')[-1]
1752                 request = urllib2.Request(url)
1753                 try:
1754                         self.report_download_webpage(video_id)
1755                         webpage = urllib2.urlopen(request).read()
1756                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1757                         self._downloader.trouble(u'ERROR: Unable to retrieve video webpage: %s' % str(err))
1758                         return
1759                 except ValueError, err:
1760                         # since this is the last-resort InfoExtractor, if
1761                         # this error is thrown, it'll be thrown here
1762                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1763                         return
1764
1765                 self.report_extraction(video_id)
1766                 # Start with something easy: JW Player in SWFObject
1767                 mobj = re.search(r'flashvars: [\'"](?:.*&)?file=(http[^\'"&]*)', webpage)
1768                 if mobj is None:
1769                         # Broaden the search a little bit
1770                         mobj = re.search(r'[^A-Za-z0-9]?(?:file|source)=(http[^\'"&]*)', webpage)
1771                 if mobj is None:
1772                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1773                         return
1774
1775                 # It's possible that one of the regexes
1776                 # matched, but returned an empty group:
1777                 if mobj.group(1) is None:
1778                         self._downloader.trouble(u'ERROR: Invalid URL: %s' % url)
1779                         return
1780
1781                 video_url = urllib.unquote(mobj.group(1))
1782                 video_id  = os.path.basename(video_url)
1783
1784                 # here's a fun little line of code for you:
1785                 video_extension = os.path.splitext(video_id)[1][1:]
1786                 video_id        = os.path.splitext(video_id)[0]
1787
1788                 # it's tempting to parse this further, but you would
1789                 # have to take into account all the variations like
1790                 #   Video Title - Site Name
1791                 #   Site Name | Video Title
1792                 #   Video Title - Tagline | Site Name
1793                 # and so on and so forth; it's just not practical
1794                 mobj = re.search(r'<title>(.*)</title>', webpage)
1795                 if mobj is None:
1796                         self._downloader.trouble(u'ERROR: unable to extract title')
1797                         return
1798                 video_title = mobj.group(1).decode('utf-8')
1799                 video_title = sanitize_title(video_title)
1800                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
1801
1802                 # video uploader is domain name
1803                 mobj = re.match(r'(?:https?://)?([^/]*)/.*', url)
1804                 if mobj is None:
1805                         self._downloader.trouble(u'ERROR: unable to extract title')
1806                         return
1807                 video_uploader = mobj.group(1).decode('utf-8')
1808
1809                 try:
1810                         # Process video information
1811                         self._downloader.process_info({
1812                                 'id':           video_id.decode('utf-8'),
1813                                 'url':          video_url.decode('utf-8'),
1814                                 'uploader':     video_uploader,
1815                                 'upload_date':  u'NA',
1816                                 'title':        video_title,
1817                                 'stitle':       simple_title,
1818                                 'ext':          video_extension.decode('utf-8'),
1819                                 'format':       u'NA',
1820                                 'player_url':   None,
1821                         })
1822                 except UnavailableVideoError, err:
1823                         self._downloader.trouble(u'\nERROR: unable to download video')
1824
1825
1826 class YoutubeSearchIE(InfoExtractor):
1827         """Information Extractor for YouTube search queries."""
1828         _VALID_QUERY = r'ytsearch(\d+|all)?:[\s\S]+'
1829         _TEMPLATE_URL = 'http://www.youtube.com/results?search_query=%s&page=%s&gl=US&hl=en'
1830         _VIDEO_INDICATOR = r'href="/watch\?v=.+?"'
1831         _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
1832         _youtube_ie = None
1833         _max_youtube_results = 1000
1834
1835         def __init__(self, youtube_ie, downloader=None):
1836                 InfoExtractor.__init__(self, downloader)
1837                 self._youtube_ie = youtube_ie
1838
1839         @staticmethod
1840         def suitable(url):
1841                 return (re.match(YoutubeSearchIE._VALID_QUERY, url) is not None)
1842
1843         def report_download_page(self, query, pagenum):
1844                 """Report attempt to download playlist page with given number."""
1845                 query = query.decode(preferredencoding())
1846                 self._downloader.to_screen(u'[youtube] query "%s": Downloading page %s' % (query, pagenum))
1847
1848         def _real_initialize(self):
1849                 self._youtube_ie.initialize()
1850
1851         def _real_extract(self, query):
1852                 mobj = re.match(self._VALID_QUERY, query)
1853                 if mobj is None:
1854                         self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
1855                         return
1856
1857                 prefix, query = query.split(':')
1858                 prefix = prefix[8:]
1859                 query  = query.encode('utf-8')
1860                 if prefix == '':
1861                         self._download_n_results(query, 1)
1862                         return
1863                 elif prefix == 'all':
1864                         self._download_n_results(query, self._max_youtube_results)
1865                         return
1866                 else:
1867                         try:
1868                                 n = long(prefix)
1869                                 if n <= 0:
1870                                         self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
1871                                         return
1872                                 elif n > self._max_youtube_results:
1873                                         self._downloader.to_stderr(u'WARNING: ytsearch returns max %i results (you requested %i)'  % (self._max_youtube_results, n))
1874                                         n = self._max_youtube_results
1875                                 self._download_n_results(query, n)
1876                                 return
1877                         except ValueError: # parsing prefix as integer fails
1878                                 self._download_n_results(query, 1)
1879                                 return
1880
1881         def _download_n_results(self, query, n):
1882                 """Downloads a specified number of results for a query"""
1883
1884                 video_ids = []
1885                 already_seen = set()
1886                 pagenum = 1
1887
1888                 while True:
1889                         self.report_download_page(query, pagenum)
1890                         result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
1891                         request = urllib2.Request(result_url)
1892                         try:
1893                                 page = urllib2.urlopen(request).read()
1894                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1895                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
1896                                 return
1897
1898                         # Extract video identifiers
1899                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
1900                                 video_id = page[mobj.span()[0]:mobj.span()[1]].split('=')[2][:-1]
1901                                 if video_id not in already_seen:
1902                                         video_ids.append(video_id)
1903                                         already_seen.add(video_id)
1904                                         if len(video_ids) == n:
1905                                                 # Specified n videos reached
1906                                                 for id in video_ids:
1907                                                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
1908                                                 return
1909
1910                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
1911                                 for id in video_ids:
1912                                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
1913                                 return
1914
1915                         pagenum = pagenum + 1
1916
1917 class GoogleSearchIE(InfoExtractor):
1918         """Information Extractor for Google Video search queries."""
1919         _VALID_QUERY = r'gvsearch(\d+|all)?:[\s\S]+'
1920         _TEMPLATE_URL = 'http://video.google.com/videosearch?q=%s+site:video.google.com&start=%s&hl=en'
1921         _VIDEO_INDICATOR = r'videoplay\?docid=([^\&>]+)\&'
1922         _MORE_PAGES_INDICATOR = r'<span>Next</span>'
1923         _google_ie = None
1924         _max_google_results = 1000
1925
1926         def __init__(self, google_ie, downloader=None):
1927                 InfoExtractor.__init__(self, downloader)
1928                 self._google_ie = google_ie
1929
1930         @staticmethod
1931         def suitable(url):
1932                 return (re.match(GoogleSearchIE._VALID_QUERY, url) is not None)
1933
1934         def report_download_page(self, query, pagenum):
1935                 """Report attempt to download playlist page with given number."""
1936                 query = query.decode(preferredencoding())
1937                 self._downloader.to_screen(u'[video.google] query "%s": Downloading page %s' % (query, pagenum))
1938
1939         def _real_initialize(self):
1940                 self._google_ie.initialize()
1941
1942         def _real_extract(self, query):
1943                 mobj = re.match(self._VALID_QUERY, query)
1944                 if mobj is None:
1945                         self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
1946                         return
1947
1948                 prefix, query = query.split(':')
1949                 prefix = prefix[8:]
1950                 query  = query.encode('utf-8')
1951                 if prefix == '':
1952                         self._download_n_results(query, 1)
1953                         return
1954                 elif prefix == 'all':
1955                         self._download_n_results(query, self._max_google_results)
1956                         return
1957                 else:
1958                         try:
1959                                 n = long(prefix)
1960                                 if n <= 0:
1961                                         self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
1962                                         return
1963                                 elif n > self._max_google_results:
1964                                         self._downloader.to_stderr(u'WARNING: gvsearch returns max %i results (you requested %i)'  % (self._max_google_results, n))
1965                                         n = self._max_google_results
1966                                 self._download_n_results(query, n)
1967                                 return
1968                         except ValueError: # parsing prefix as integer fails
1969                                 self._download_n_results(query, 1)
1970                                 return
1971
1972         def _download_n_results(self, query, n):
1973                 """Downloads a specified number of results for a query"""
1974
1975                 video_ids = []
1976                 already_seen = set()
1977                 pagenum = 1
1978
1979                 while True:
1980                         self.report_download_page(query, pagenum)
1981                         result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
1982                         request = urllib2.Request(result_url)
1983                         try:
1984                                 page = urllib2.urlopen(request).read()
1985                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
1986                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
1987                                 return
1988
1989                         # Extract video identifiers
1990                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
1991                                 video_id = mobj.group(1)
1992                                 if video_id not in already_seen:
1993                                         video_ids.append(video_id)
1994                                         already_seen.add(video_id)
1995                                         if len(video_ids) == n:
1996                                                 # Specified n videos reached
1997                                                 for id in video_ids:
1998                                                         self._google_ie.extract('http://video.google.com/videoplay?docid=%s' % id)
1999                                                 return
2000
2001                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
2002                                 for id in video_ids:
2003                                         self._google_ie.extract('http://video.google.com/videoplay?docid=%s' % id)
2004                                 return
2005
2006                         pagenum = pagenum + 1
2007
2008 class YahooSearchIE(InfoExtractor):
2009         """Information Extractor for Yahoo! Video search queries."""
2010         _VALID_QUERY = r'yvsearch(\d+|all)?:[\s\S]+'
2011         _TEMPLATE_URL = 'http://video.yahoo.com/search/?p=%s&o=%s'
2012         _VIDEO_INDICATOR = r'href="http://video\.yahoo\.com/watch/([0-9]+/[0-9]+)"'
2013         _MORE_PAGES_INDICATOR = r'\s*Next'
2014         _yahoo_ie = None
2015         _max_yahoo_results = 1000
2016
2017         def __init__(self, yahoo_ie, downloader=None):
2018                 InfoExtractor.__init__(self, downloader)
2019                 self._yahoo_ie = yahoo_ie
2020
2021         @staticmethod
2022         def suitable(url):
2023                 return (re.match(YahooSearchIE._VALID_QUERY, url) is not None)
2024
2025         def report_download_page(self, query, pagenum):
2026                 """Report attempt to download playlist page with given number."""
2027                 query = query.decode(preferredencoding())
2028                 self._downloader.to_screen(u'[video.yahoo] query "%s": Downloading page %s' % (query, pagenum))
2029
2030         def _real_initialize(self):
2031                 self._yahoo_ie.initialize()
2032
2033         def _real_extract(self, query):
2034                 mobj = re.match(self._VALID_QUERY, query)
2035                 if mobj is None:
2036                         self._downloader.trouble(u'ERROR: invalid search query "%s"' % query)
2037                         return
2038
2039                 prefix, query = query.split(':')
2040                 prefix = prefix[8:]
2041                 query  = query.encode('utf-8')
2042                 if prefix == '':
2043                         self._download_n_results(query, 1)
2044                         return
2045                 elif prefix == 'all':
2046                         self._download_n_results(query, self._max_yahoo_results)
2047                         return
2048                 else:
2049                         try:
2050                                 n = long(prefix)
2051                                 if n <= 0:
2052                                         self._downloader.trouble(u'ERROR: invalid download number %s for query "%s"' % (n, query))
2053                                         return
2054                                 elif n > self._max_yahoo_results:
2055                                         self._downloader.to_stderr(u'WARNING: yvsearch returns max %i results (you requested %i)'  % (self._max_yahoo_results, n))
2056                                         n = self._max_yahoo_results
2057                                 self._download_n_results(query, n)
2058                                 return
2059                         except ValueError: # parsing prefix as integer fails
2060                                 self._download_n_results(query, 1)
2061                                 return
2062
2063         def _download_n_results(self, query, n):
2064                 """Downloads a specified number of results for a query"""
2065
2066                 video_ids = []
2067                 already_seen = set()
2068                 pagenum = 1
2069
2070                 while True:
2071                         self.report_download_page(query, pagenum)
2072                         result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum)
2073                         request = urllib2.Request(result_url)
2074                         try:
2075                                 page = urllib2.urlopen(request).read()
2076                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2077                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
2078                                 return
2079
2080                         # Extract video identifiers
2081                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
2082                                 video_id = mobj.group(1)
2083                                 if video_id not in already_seen:
2084                                         video_ids.append(video_id)
2085                                         already_seen.add(video_id)
2086                                         if len(video_ids) == n:
2087                                                 # Specified n videos reached
2088                                                 for id in video_ids:
2089                                                         self._yahoo_ie.extract('http://video.yahoo.com/watch/%s' % id)
2090                                                 return
2091
2092                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
2093                                 for id in video_ids:
2094                                         self._yahoo_ie.extract('http://video.yahoo.com/watch/%s' % id)
2095                                 return
2096
2097                         pagenum = pagenum + 1
2098
2099 class YoutubePlaylistIE(InfoExtractor):
2100         """Information Extractor for YouTube playlists."""
2101
2102         _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_-]+))?.*'
2103         _TEMPLATE_URL = 'http://www.youtube.com/%s?%s=%s&page=%s&gl=US&hl=en'
2104         _VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
2105         _MORE_PAGES_INDICATOR = r'(?m)>\s*Next\s*</a>'
2106         _youtube_ie = None
2107
2108         def __init__(self, youtube_ie, downloader=None):
2109                 InfoExtractor.__init__(self, downloader)
2110                 self._youtube_ie = youtube_ie
2111
2112         @staticmethod
2113         def suitable(url):
2114                 return (re.match(YoutubePlaylistIE._VALID_URL, url) is not None)
2115
2116         def report_download_page(self, playlist_id, pagenum):
2117                 """Report attempt to download playlist page with given number."""
2118                 self._downloader.to_screen(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum))
2119
2120         def _real_initialize(self):
2121                 self._youtube_ie.initialize()
2122
2123         def _real_extract(self, url):
2124                 # Extract playlist id
2125                 mobj = re.match(self._VALID_URL, url)
2126                 if mobj is None:
2127                         self._downloader.trouble(u'ERROR: invalid url: %s' % url)
2128                         return
2129
2130                 # Single video case
2131                 if mobj.group(3) is not None:
2132                         self._youtube_ie.extract(mobj.group(3))
2133                         return
2134
2135                 # Download playlist pages
2136                 # prefix is 'p' as default for playlists but there are other types that need extra care
2137                 playlist_prefix = mobj.group(1)
2138                 if playlist_prefix == 'a':
2139                         playlist_access = 'artist'
2140                 else:
2141                         playlist_prefix = 'p'
2142                         playlist_access = 'view_play_list'
2143                 playlist_id = mobj.group(2)
2144                 video_ids = []
2145                 pagenum = 1
2146
2147                 while True:
2148                         self.report_download_page(playlist_id, pagenum)
2149                         request = urllib2.Request(self._TEMPLATE_URL % (playlist_access, playlist_prefix, playlist_id, pagenum))
2150                         try:
2151                                 page = urllib2.urlopen(request).read()
2152                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2153                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
2154                                 return
2155
2156                         # Extract video identifiers
2157                         ids_in_page = []
2158                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
2159                                 if mobj.group(1) not in ids_in_page:
2160                                         ids_in_page.append(mobj.group(1))
2161                         video_ids.extend(ids_in_page)
2162
2163                         if re.search(self._MORE_PAGES_INDICATOR, page) is None:
2164                                 break
2165                         pagenum = pagenum + 1
2166
2167                 playliststart = self._downloader.params.get('playliststart', 1) - 1
2168                 playlistend = self._downloader.params.get('playlistend', -1)
2169                 video_ids = video_ids[playliststart:playlistend]
2170
2171                 for id in video_ids:
2172                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)
2173                 return
2174
2175 class YoutubeUserIE(InfoExtractor):
2176         """Information Extractor for YouTube users."""
2177
2178         _VALID_URL = r'(?:(?:(?:http://)?(?:\w+\.)?youtube.com/user/)|ytuser:)([A-Za-z0-9_-]+)'
2179         _TEMPLATE_URL = 'http://gdata.youtube.com/feeds/api/users/%s'
2180         _GDATA_PAGE_SIZE = 50
2181         _GDATA_URL = 'http://gdata.youtube.com/feeds/api/users/%s/uploads?max-results=%d&start-index=%d'
2182         _VIDEO_INDICATOR = r'/watch\?v=(.+?)&'
2183         _youtube_ie = None
2184
2185         def __init__(self, youtube_ie, downloader=None):
2186                 InfoExtractor.__init__(self, downloader)
2187                 self._youtube_ie = youtube_ie
2188
2189         @staticmethod
2190         def suitable(url):
2191                 return (re.match(YoutubeUserIE._VALID_URL, url) is not None)
2192
2193         def report_download_page(self, username, start_index):
2194                 """Report attempt to download user page."""
2195                 self._downloader.to_screen(u'[youtube] user %s: Downloading video ids from %d to %d' %
2196                                            (username, start_index, start_index + self._GDATA_PAGE_SIZE))
2197
2198         def _real_initialize(self):
2199                 self._youtube_ie.initialize()
2200
2201         def _real_extract(self, url):
2202                 # Extract username
2203                 mobj = re.match(self._VALID_URL, url)
2204                 if mobj is None:
2205                         self._downloader.trouble(u'ERROR: invalid url: %s' % url)
2206                         return
2207
2208                 username = mobj.group(1)
2209
2210                 # Download video ids using YouTube Data API. Result size per
2211                 # query is limited (currently to 50 videos) so we need to query
2212                 # page by page until there are no video ids - it means we got
2213                 # all of them.
2214
2215                 video_ids = []
2216                 pagenum = 0
2217
2218                 while True:
2219                         start_index = pagenum * self._GDATA_PAGE_SIZE + 1
2220                         self.report_download_page(username, start_index)
2221
2222                         request = urllib2.Request(self._GDATA_URL % (username, self._GDATA_PAGE_SIZE, start_index))
2223
2224                         try:
2225                                 page = urllib2.urlopen(request).read()
2226                         except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2227                                 self._downloader.trouble(u'ERROR: unable to download webpage: %s' % str(err))
2228                                 return
2229
2230                         # Extract video identifiers
2231                         ids_in_page = []
2232
2233                         for mobj in re.finditer(self._VIDEO_INDICATOR, page):
2234                                 if mobj.group(1) not in ids_in_page:
2235                                         ids_in_page.append(mobj.group(1))
2236
2237                         video_ids.extend(ids_in_page)
2238
2239                         # A little optimization - if current page is not
2240                         # "full", ie. does not contain PAGE_SIZE video ids then
2241                         # we can assume that this page is the last one - there
2242                         # are no more ids on further pages - no need to query
2243                         # again.
2244
2245                         if len(ids_in_page) < self._GDATA_PAGE_SIZE:
2246                                 break
2247
2248                         pagenum += 1
2249
2250                 all_ids_count = len(video_ids)
2251                 playliststart = self._downloader.params.get('playliststart', 1) - 1
2252                 playlistend = self._downloader.params.get('playlistend', -1)
2253
2254                 if playlistend == -1:
2255                         video_ids = video_ids[playliststart:]
2256                 else:
2257                         video_ids = video_ids[playliststart:playlistend]
2258
2259                 self._downloader.to_screen("[youtube] user %s: Collected %d video ids (downloading %d of them)" %
2260                                            (username, all_ids_count, len(video_ids)))
2261
2262                 for video_id in video_ids:
2263                         self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % video_id)
2264
2265
2266 class DepositFilesIE(InfoExtractor):
2267         """Information extractor for depositfiles.com"""
2268
2269         _VALID_URL = r'(?:http://)?(?:\w+\.)?depositfiles.com/(?:../(?#locale))?files/(.+)'
2270
2271         def __init__(self, downloader=None):
2272                 InfoExtractor.__init__(self, downloader)
2273
2274         @staticmethod
2275         def suitable(url):
2276                 return (re.match(DepositFilesIE._VALID_URL, url) is not None)
2277
2278         def report_download_webpage(self, file_id):
2279                 """Report webpage download."""
2280                 self._downloader.to_screen(u'[DepositFiles] %s: Downloading webpage' % file_id)
2281
2282         def report_extraction(self, file_id):
2283                 """Report information extraction."""
2284                 self._downloader.to_screen(u'[DepositFiles] %s: Extracting information' % file_id)
2285
2286         def _real_initialize(self):
2287                 return
2288
2289         def _real_extract(self, url):
2290                 # At this point we have a new file
2291                 self._downloader.increment_downloads()
2292
2293                 file_id = url.split('/')[-1]
2294                 # Rebuild url in english locale
2295                 url = 'http://depositfiles.com/en/files/' + file_id
2296
2297                 # Retrieve file webpage with 'Free download' button pressed
2298                 free_download_indication = { 'gateway_result' : '1' }
2299                 request = urllib2.Request(url, urllib.urlencode(free_download_indication))
2300                 try:
2301                         self.report_download_webpage(file_id)
2302                         webpage = urllib2.urlopen(request).read()
2303                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2304                         self._downloader.trouble(u'ERROR: Unable to retrieve file webpage: %s' % str(err))
2305                         return
2306
2307                 # Search for the real file URL
2308                 mobj = re.search(r'<form action="(http://fileshare.+?)"', webpage)
2309                 if (mobj is None) or (mobj.group(1) is None):
2310                         # Try to figure out reason of the error.
2311                         mobj = re.search(r'<strong>(Attention.*?)</strong>', webpage, re.DOTALL)
2312                         if (mobj is not None) and (mobj.group(1) is not None):
2313                                 restriction_message = re.sub('\s+', ' ', mobj.group(1)).strip()
2314                                 self._downloader.trouble(u'ERROR: %s' % restriction_message)
2315                         else:
2316                                 self._downloader.trouble(u'ERROR: unable to extract download URL from: %s' % url)
2317                         return
2318
2319                 file_url = mobj.group(1)
2320                 file_extension = os.path.splitext(file_url)[1][1:]
2321
2322                 # Search for file title
2323                 mobj = re.search(r'<b title="(.*?)">', webpage)
2324                 if mobj is None:
2325                         self._downloader.trouble(u'ERROR: unable to extract title')
2326                         return
2327                 file_title = mobj.group(1).decode('utf-8')
2328
2329                 try:
2330                         # Process file information
2331                         self._downloader.process_info({
2332                                 'id':           file_id.decode('utf-8'),
2333                                 'url':          file_url.decode('utf-8'),
2334                                 'uploader':     u'NA',
2335                                 'upload_date':  u'NA',
2336                                 'title':        file_title,
2337                                 'stitle':       file_title,
2338                                 'ext':          file_extension.decode('utf-8'),
2339                                 'format':       u'NA',
2340                                 'player_url':   None,
2341                         })
2342                 except UnavailableVideoError, err:
2343                         self._downloader.trouble(u'ERROR: unable to download file')
2344
2345 class FacebookIE(InfoExtractor):
2346         """Information Extractor for Facebook"""
2347
2348         _VALID_URL = r'^(?:https?://)?(?:\w+\.)?facebook.com/video/video.php\?(?:.*?)v=(?P<ID>\d+)(?:.*)'
2349         _LOGIN_URL = 'https://login.facebook.com/login.php?m&next=http%3A%2F%2Fm.facebook.com%2Fhome.php&'
2350         _NETRC_MACHINE = 'facebook'
2351         _available_formats = ['highqual', 'lowqual']
2352         _video_extensions = {
2353                 'highqual': 'mp4',
2354                 'lowqual': 'mp4',
2355         }
2356
2357         def __init__(self, downloader=None):
2358                 InfoExtractor.__init__(self, downloader)
2359
2360         @staticmethod
2361         def suitable(url):
2362                 return (re.match(FacebookIE._VALID_URL, url) is not None)
2363
2364         def _reporter(self, message):
2365                 """Add header and report message."""
2366                 self._downloader.to_screen(u'[facebook] %s' % message)
2367
2368         def report_login(self):
2369                 """Report attempt to log in."""
2370                 self._reporter(u'Logging in')
2371
2372         def report_video_webpage_download(self, video_id):
2373                 """Report attempt to download video webpage."""
2374                 self._reporter(u'%s: Downloading video webpage' % video_id)
2375
2376         def report_information_extraction(self, video_id):
2377                 """Report attempt to extract video information."""
2378                 self._reporter(u'%s: Extracting video information' % video_id)
2379
2380         def _parse_page(self, video_webpage):
2381                 """Extract video information from page"""
2382                 # General data
2383                 data = {'title': r'class="video_title datawrap">(.*?)</',
2384                         'description': r'<div class="datawrap">(.*?)</div>',
2385                         'owner': r'\("video_owner_name", "(.*?)"\)',
2386                         'upload_date': r'data-date="(.*?)"',
2387                         'thumbnail':  r'\("thumb_url", "(?P<THUMB>.*?)"\)',
2388                         }
2389                 video_info = {}
2390                 for piece in data.keys():
2391                         mobj = re.search(data[piece], video_webpage)
2392                         if mobj is not None:
2393                                 video_info[piece] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
2394
2395                 # Video urls
2396                 video_urls = {}
2397                 for fmt in self._available_formats:
2398                         mobj = re.search(r'\("%s_src\", "(.+?)"\)' % fmt, video_webpage)
2399                         if mobj is not None:
2400                                 # URL is in a Javascript segment inside an escaped Unicode format within
2401                                 # the generally utf-8 page
2402                                 video_urls[fmt] = urllib.unquote_plus(mobj.group(1).decode("unicode_escape"))
2403                 video_info['video_urls'] = video_urls
2404
2405                 return video_info
2406
2407         def _real_initialize(self):
2408                 if self._downloader is None:
2409                         return
2410
2411                 useremail = None
2412                 password = None
2413                 downloader_params = self._downloader.params
2414
2415                 # Attempt to use provided username and password or .netrc data
2416                 if downloader_params.get('username', None) is not None:
2417                         useremail = downloader_params['username']
2418                         password = downloader_params['password']
2419                 elif downloader_params.get('usenetrc', False):
2420                         try:
2421                                 info = netrc.netrc().authenticators(self._NETRC_MACHINE)
2422                                 if info is not None:
2423                                         useremail = info[0]
2424                                         password = info[2]
2425                                 else:
2426                                         raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE)
2427                         except (IOError, netrc.NetrcParseError), err:
2428                                 self._downloader.to_stderr(u'WARNING: parsing .netrc: %s' % str(err))
2429                                 return
2430
2431                 if useremail is None:
2432                         return
2433
2434                 # Log in
2435                 login_form = {
2436                         'email': useremail,
2437                         'pass': password,
2438                         'login': 'Log+In'
2439                         }
2440                 request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form))
2441                 try:
2442                         self.report_login()
2443                         login_results = urllib2.urlopen(request).read()
2444                         if re.search(r'<form(.*)name="login"(.*)</form>', login_results) is not None:
2445                                 self._downloader.to_stderr(u'WARNING: unable to log in: bad username/password, or exceded login rate limit (~3/min). Check credentials or wait.')
2446                                 return
2447                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2448                         self._downloader.to_stderr(u'WARNING: unable to log in: %s' % str(err))
2449                         return
2450
2451         def _real_extract(self, url):
2452                 mobj = re.match(self._VALID_URL, url)
2453                 if mobj is None:
2454                         self._downloader.trouble(u'ERROR: invalid URL: %s' % url)
2455                         return
2456                 video_id = mobj.group('ID')
2457
2458                 # Get video webpage
2459                 self.report_video_webpage_download(video_id)
2460                 request = urllib2.Request('https://www.facebook.com/video/video.php?v=%s' % video_id)
2461                 try:
2462                         page = urllib2.urlopen(request)
2463                         video_webpage = page.read()
2464                 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
2465                         self._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err))
2466                         return
2467
2468                 # Start extracting information
2469                 self.report_information_extraction(video_id)
2470
2471                 # Extract information
2472                 video_info = self._parse_page(video_webpage)
2473
2474                 # uploader
2475                 if 'owner' not in video_info:
2476                         self._downloader.trouble(u'ERROR: unable to extract uploader nickname')
2477                         return
2478                 video_uploader = video_info['owner']
2479
2480                 # title
2481                 if 'title' not in video_info:
2482                         self._downloader.trouble(u'ERROR: unable to extract video title')
2483                         return
2484                 video_title = video_info['title']
2485                 video_title = video_title.decode('utf-8')
2486                 video_title = sanitize_title(video_title)
2487
2488                 # simplified title
2489                 simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title)
2490                 simple_title = simple_title.strip(ur'_')
2491
2492                 # thumbnail image
2493                 if 'thumbnail' not in video_info:
2494                         self._downloader.trouble(u'WARNING: unable to extract video thumbnail')
2495                         video_thumbnail = ''
2496                 else:
2497                         video_thumbnail = video_info['thumbnail']
2498
2499                 # upload date
2500                 upload_date = u'NA'
2501                 if 'upload_date' in video_info:
2502                         upload_time = video_info['upload_date']
2503                         timetuple = email.utils.parsedate_tz(upload_time)
2504                         if timetuple is not None:
2505                                 try:
2506                                         upload_date = time.strftime('%Y%m%d', timetuple[0:9])
2507                                 except:
2508                                         pass
2509
2510                 # description
2511                 video_description = 'No description available.'
2512                 if (self._downloader.params.get('forcedescription', False) and
2513                     'description' in video_info):
2514                         video_description = video_info['description']
2515
2516                 url_map = video_info['video_urls']
2517                 if len(url_map.keys()) > 0:
2518                         # Decide which formats to download
2519                         req_format = self._downloader.params.get('format', None)
2520                         format_limit = self._downloader.params.get('format_limit', None)
2521
2522                         if format_limit is not None and format_limit in self._available_formats:
2523                                 format_list = self._available_formats[self._available_formats.index(format_limit):]
2524                         else:
2525                                 format_list = self._available_formats
2526                         existing_formats = [x for x in format_list if x in url_map]
2527                         if len(existing_formats) == 0:
2528                                 self._downloader.trouble(u'ERROR: no known formats available for video')
2529                                 return
2530                         if req_format is None:
2531                                 video_url_list = [(existing_formats[0], url_map[existing_formats[0]])] # Best quality
2532                         elif req_format == '-1':
2533                                 video_url_list = [(f, url_map[f]) for f in existing_formats] # All formats
2534                         else:
2535                                 # Specific format
2536                                 if req_format not in url_map:
2537                                         self._downloader.trouble(u'ERROR: requested format not available')
2538                                         return
2539                                 video_url_list = [(req_format, url_map[req_format])] # Specific format
2540
2541                 for format_param, video_real_url in video_url_list:
2542
2543                         # At this point we have a new video
2544                         self._downloader.increment_downloads()
2545
2546                         # Extension
2547                         video_extension = self._video_extensions.get(format_param, 'mp4')
2548
2549                         # Find the video URL in fmt_url_map or conn paramters
2550                         try:
2551                                 # Process video information
2552                                 self._downloader.process_info({
2553                                         'id':           video_id.decode('utf-8'),
2554                                         'url':          video_real_url.decode('utf-8'),
2555                                         'uploader':     video_uploader.decode('utf-8'),
2556                                         'upload_date':  upload_date,
2557                                         'title':        video_title,
2558                                         'stitle':       simple_title,
2559                                         'ext':          video_extension.decode('utf-8'),
2560                                         'format':       (format_param is None and u'NA' or format_param.decode('utf-8')),
2561                                         'thumbnail':    video_thumbnail.decode('utf-8'),
2562                                         'description':  video_description.decode('utf-8'),
2563                                         'player_url':   None,
2564                                 })
2565                         except UnavailableVideoError, err:
2566                                 self._downloader.trouble(u'\nERROR: unable to download video')
2567
2568 class PostProcessor(object):
2569         """Post Processor class.
2570
2571         PostProcessor objects can be added to downloaders with their
2572         add_post_processor() method. When the downloader has finished a
2573         successful download, it will take its internal chain of PostProcessors
2574         and start calling the run() method on each one of them, first with
2575         an initial argument and then with the returned value of the previous
2576         PostProcessor.
2577
2578         The chain will be stopped if one of them ever returns None or the end
2579         of the chain is reached.
2580
2581         PostProcessor objects follow a "mutual registration" process similar
2582         to InfoExtractor objects.
2583         """
2584
2585         _downloader = None
2586
2587         def __init__(self, downloader=None):
2588                 self._downloader = downloader
2589
2590         def set_downloader(self, downloader):
2591                 """Sets the downloader for this PP."""
2592                 self._downloader = downloader
2593
2594         def run(self, information):
2595                 """Run the PostProcessor.
2596
2597                 The "information" argument is a dictionary like the ones
2598                 composed by InfoExtractors. The only difference is that this
2599                 one has an extra field called "filepath" that points to the
2600                 downloaded file.
2601
2602                 When this method returns None, the postprocessing chain is
2603                 stopped. However, this method may return an information
2604                 dictionary that will be passed to the next postprocessing
2605                 object in the chain. It can be the one it received after
2606                 changing some fields.
2607
2608                 In addition, this method may raise a PostProcessingError
2609                 exception that will be taken into account by the downloader
2610                 it was called from.
2611                 """
2612                 return information # by default, do nothing
2613
2614 class FFmpegExtractAudioPP(PostProcessor):
2615
2616         def __init__(self, downloader=None, preferredcodec=None):
2617                 PostProcessor.__init__(self, downloader)
2618                 if preferredcodec is None:
2619                         preferredcodec = 'best'
2620                 self._preferredcodec = preferredcodec
2621
2622         @staticmethod
2623         def get_audio_codec(path):
2624                 try:
2625                         cmd = ['ffprobe', '-show_streams', '--', path]
2626                         handle = subprocess.Popen(cmd, stderr=file(os.path.devnull, 'w'), stdout=subprocess.PIPE)
2627                         output = handle.communicate()[0]
2628                         if handle.wait() != 0:
2629                                 return None
2630                 except (IOError, OSError):
2631                         return None
2632                 audio_codec = None
2633                 for line in output.split('\n'):
2634                         if line.startswith('codec_name='):
2635                                 audio_codec = line.split('=')[1].strip()
2636                         elif line.strip() == 'codec_type=audio' and audio_codec is not None:
2637                                 return audio_codec
2638                 return None
2639
2640         @staticmethod
2641         def run_ffmpeg(path, out_path, codec, more_opts):
2642                 try:
2643                         cmd = ['ffmpeg', '-y', '-i', path, '-vn', '-acodec', codec] + more_opts + ['--', out_path]
2644                         ret = subprocess.call(cmd, stdout=file(os.path.devnull, 'w'), stderr=subprocess.STDOUT)
2645                         return (ret == 0)
2646                 except (IOError, OSError):
2647                         return False
2648
2649         def run(self, information):
2650                 path = information['filepath']
2651
2652                 filecodec = self.get_audio_codec(path)
2653                 if filecodec is None:
2654                         self._downloader.to_stderr(u'WARNING: unable to obtain file audio codec with ffprobe')
2655                         return None
2656
2657                 more_opts = []
2658                 if self._preferredcodec == 'best' or self._preferredcodec == filecodec:
2659                         if filecodec == 'aac' or filecodec == 'mp3':
2660                                 # Lossless if possible
2661                                 acodec = 'copy'
2662                                 extension = filecodec
2663                                 if filecodec == 'aac':
2664                                         more_opts = ['-f', 'adts']
2665                         else:
2666                                 # MP3 otherwise.
2667                                 acodec = 'libmp3lame'
2668                                 extension = 'mp3'
2669                                 more_opts = ['-ab', '128k']
2670                 else:
2671                         # We convert the audio (lossy)
2672                         acodec = {'mp3': 'libmp3lame', 'aac': 'aac'}[self._preferredcodec]
2673                         extension = self._preferredcodec
2674                         more_opts = ['-ab', '128k']
2675                         if self._preferredcodec == 'aac':
2676                                 more_opts += ['-f', 'adts']
2677
2678                 (prefix, ext) = os.path.splitext(path)
2679                 new_path = prefix + '.' + extension
2680                 self._downloader.to_screen(u'[ffmpeg] Destination: %s' % new_path)
2681                 status = self.run_ffmpeg(path, new_path, acodec, more_opts)
2682
2683                 if not status:
2684                         self._downloader.to_stderr(u'WARNING: error running ffmpeg')
2685                         return None
2686
2687                 try:
2688                         os.remove(path)
2689                 except (IOError, OSError):
2690                         self._downloader.to_stderr(u'WARNING: Unable to remove downloaded video file')
2691                         return None
2692
2693                 information['filepath'] = new_path
2694                 return information
2695
2696 ### MAIN PROGRAM ###
2697 if __name__ == '__main__':
2698         try:
2699                 # Modules needed only when running the main program
2700                 import getpass
2701                 import optparse
2702
2703                 # Function to update the program file with the latest version from the repository.
2704                 def update_self(downloader, filename):
2705                         # Note: downloader only used for options
2706                         if not os.access(filename, os.W_OK):
2707                                 sys.exit('ERROR: no write permissions on %s' % filename)
2708
2709                         downloader.to_screen('Updating to latest stable version...')
2710                         try:
2711                                 latest_url = 'http://github.com/rg3/youtube-dl/raw/master/LATEST_VERSION'
2712                                 latest_version = urllib.urlopen(latest_url).read().strip()
2713                                 prog_url = 'http://github.com/rg3/youtube-dl/raw/%s/youtube-dl' % latest_version
2714                                 newcontent = urllib.urlopen(prog_url).read()
2715                         except (IOError, OSError), err:
2716                                 sys.exit('ERROR: unable to download latest version')
2717                         try:
2718                                 stream = open(filename, 'w')
2719                                 stream.write(newcontent)
2720                                 stream.close()
2721                         except (IOError, OSError), err:
2722                                 sys.exit('ERROR: unable to overwrite current version')
2723                         downloader.to_screen('Updated to version %s' % latest_version)
2724
2725                 # Parse command line
2726                 parser = optparse.OptionParser(
2727                         usage='Usage: %prog [options] url...',
2728                         version='2011.08.04',
2729                         conflict_handler='resolve',
2730                 )
2731
2732                 parser.add_option('-h', '--help',
2733                                 action='help', help='print this help text and exit')
2734                 parser.add_option('-v', '--version',
2735                                 action='version', help='print program version and exit')
2736                 parser.add_option('-U', '--update',
2737                                 action='store_true', dest='update_self', help='update this program to latest stable version')
2738                 parser.add_option('-i', '--ignore-errors',
2739                                 action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
2740                 parser.add_option('-r', '--rate-limit',
2741                                 dest='ratelimit', metavar='LIMIT', help='download rate limit (e.g. 50k or 44.6m)')
2742                 parser.add_option('-R', '--retries',
2743                                 dest='retries', metavar='RETRIES', help='number of retries (default is 10)', default=10)
2744                 parser.add_option('--playlist-start',
2745                                 dest='playliststart', metavar='NUMBER', help='playlist video to start at (default is 1)', default=1)
2746                 parser.add_option('--playlist-end',
2747                                 dest='playlistend', metavar='NUMBER', help='playlist video to end at (default is last)', default=-1)
2748                 parser.add_option('--dump-user-agent',
2749                                 action='store_true', dest='dump_user_agent',
2750                                 help='display the current browser identification', default=False)
2751
2752                 authentication = optparse.OptionGroup(parser, 'Authentication Options')
2753                 authentication.add_option('-u', '--username',
2754                                 dest='username', metavar='USERNAME', help='account username')
2755                 authentication.add_option('-p', '--password',
2756                                 dest='password', metavar='PASSWORD', help='account password')
2757                 authentication.add_option('-n', '--netrc',
2758                                 action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False)
2759                 parser.add_option_group(authentication)
2760
2761                 video_format = optparse.OptionGroup(parser, 'Video Format Options')
2762                 video_format.add_option('-f', '--format',
2763                                 action='store', dest='format', metavar='FORMAT', help='video format code')
2764                 video_format.add_option('--all-formats',
2765                                 action='store_const', dest='format', help='download all available video formats', const='-1')
2766                 video_format.add_option('--max-quality',
2767                                 action='store', dest='format_limit', metavar='FORMAT', help='highest quality format to download')
2768                 parser.add_option_group(video_format)
2769
2770                 verbosity = optparse.OptionGroup(parser, 'Verbosity / Simulation Options')
2771                 verbosity.add_option('-q', '--quiet',
2772                                 action='store_true', dest='quiet', help='activates quiet mode', default=False)
2773                 verbosity.add_option('-s', '--simulate',
2774                                 action='store_true', dest='simulate', help='do not download video', default=False)
2775                 verbosity.add_option('-g', '--get-url',
2776                                 action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False)
2777                 verbosity.add_option('-e', '--get-title',
2778                                 action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False)
2779                 verbosity.add_option('--get-thumbnail',
2780                                 action='store_true', dest='getthumbnail',
2781                                 help='simulate, quiet but print thumbnail URL', default=False)
2782                 verbosity.add_option('--get-description',
2783                                 action='store_true', dest='getdescription',
2784                                 help='simulate, quiet but print video description', default=False)
2785                 verbosity.add_option('--get-filename',
2786                                 action='store_true', dest='getfilename',
2787                                 help='simulate, quiet but print output filename', default=False)
2788                 verbosity.add_option('--no-progress',
2789                                 action='store_true', dest='noprogress', help='do not print progress bar', default=False)
2790                 verbosity.add_option('--console-title',
2791                                 action='store_true', dest='consoletitle',
2792                                 help='display progress in console titlebar', default=False)
2793                 parser.add_option_group(verbosity)
2794
2795                 filesystem = optparse.OptionGroup(parser, 'Filesystem Options')
2796                 filesystem.add_option('-t', '--title',
2797                                 action='store_true', dest='usetitle', help='use title in file name', default=False)
2798                 filesystem.add_option('-l', '--literal',
2799                                 action='store_true', dest='useliteral', help='use literal title in file name', default=False)
2800                 filesystem.add_option('-A', '--auto-number',
2801                                 action='store_true', dest='autonumber',
2802                                 help='number downloaded files starting from 00000', default=False)
2803                 filesystem.add_option('-o', '--output',
2804                                 dest='outtmpl', metavar='TEMPLATE', help='output filename template')
2805                 filesystem.add_option('-a', '--batch-file',
2806                                 dest='batchfile', metavar='FILE', help='file containing URLs to download (\'-\' for stdin)')
2807                 filesystem.add_option('-w', '--no-overwrites',
2808                                 action='store_true', dest='nooverwrites', help='do not overwrite files', default=False)
2809                 filesystem.add_option('-c', '--continue',
2810                                 action='store_true', dest='continue_dl', help='resume partially downloaded files', default=False)
2811                 filesystem.add_option('--cookies',
2812                                 dest='cookiefile', metavar='FILE', help='file to dump cookie jar to')
2813                 filesystem.add_option('--no-part',
2814                                 action='store_true', dest='nopart', help='do not use .part files', default=False)
2815                 filesystem.add_option('--no-mtime',
2816                                 action='store_false', dest='updatetime',
2817                                 help='do not use the Last-modified header to set the file modification time', default=True)
2818                 parser.add_option_group(filesystem)
2819
2820                 postproc = optparse.OptionGroup(parser, 'Post-processing Options')
2821                 postproc.add_option('--extract-audio', action='store_true', dest='extractaudio', default=False,
2822                                 help='convert video files to audio-only files (requires ffmpeg and ffprobe)')
2823                 postproc.add_option('--audio-format', metavar='FORMAT', dest='audioformat', default='best',
2824                                 help='"best", "aac" or "mp3"; best by default')
2825                 parser.add_option_group(postproc)
2826
2827                 (opts, args) = parser.parse_args()
2828
2829                 # Open appropriate CookieJar
2830                 if opts.cookiefile is None:
2831                         jar = cookielib.CookieJar()
2832                 else:
2833                         try:
2834                                 jar = cookielib.MozillaCookieJar(opts.cookiefile)
2835                                 if os.path.isfile(opts.cookiefile) and os.access(opts.cookiefile, os.R_OK):
2836                                         jar.load()
2837                         except (IOError, OSError), err:
2838                                 sys.exit(u'ERROR: unable to open cookie file')
2839
2840                 # Dump user agent
2841                 if opts.dump_user_agent:
2842                         print std_headers['User-Agent']
2843                         sys.exit(0)
2844
2845                 # General configuration
2846                 cookie_processor = urllib2.HTTPCookieProcessor(jar)
2847                 urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler(), cookie_processor, YoutubeDLHandler()))
2848                 socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words)
2849
2850                 # Batch file verification
2851                 batchurls = []
2852                 if opts.batchfile is not None:
2853                         try:
2854                                 if opts.batchfile == '-':
2855                                         batchfd = sys.stdin
2856                                 else:
2857                                         batchfd = open(opts.batchfile, 'r')
2858                                 batchurls = batchfd.readlines()
2859                                 batchurls = [x.strip() for x in batchurls]
2860                                 batchurls = [x for x in batchurls if len(x) > 0 and not re.search(r'^[#/;]', x)]
2861                         except IOError:
2862                                 sys.exit(u'ERROR: batch file could not be read')
2863                 all_urls = batchurls + args
2864
2865                 # Conflicting, missing and erroneous options
2866                 if opts.usenetrc and (opts.username is not None or opts.password is not None):
2867                         parser.error(u'using .netrc conflicts with giving username/password')
2868                 if opts.password is not None and opts.username is None:
2869                         parser.error(u'account username missing')
2870                 if opts.outtmpl is not None and (opts.useliteral or opts.usetitle or opts.autonumber):
2871                         parser.error(u'using output template conflicts with using title, literal title or auto number')
2872                 if opts.usetitle and opts.useliteral:
2873                         parser.error(u'using title conflicts with using literal title')
2874                 if opts.username is not None and opts.password is None:
2875                         opts.password = getpass.getpass(u'Type account password and press return:')
2876                 if opts.ratelimit is not None:
2877                         numeric_limit = FileDownloader.parse_bytes(opts.ratelimit)
2878                         if numeric_limit is None:
2879                                 parser.error(u'invalid rate limit specified')
2880                         opts.ratelimit = numeric_limit
2881                 if opts.retries is not None:
2882                         try:
2883                                 opts.retries = long(opts.retries)
2884                         except (TypeError, ValueError), err:
2885                                 parser.error(u'invalid retry count specified')
2886                 try:
2887                         opts.playliststart = long(opts.playliststart)
2888                         if opts.playliststart <= 0:
2889                                 raise ValueError
2890                 except (TypeError, ValueError), err:
2891                         parser.error(u'invalid playlist start number specified')
2892                 try:
2893                         opts.playlistend = long(opts.playlistend)
2894                         if opts.playlistend != -1 and (opts.playlistend <= 0 or opts.playlistend < opts.playliststart):
2895                                 raise ValueError
2896                 except (TypeError, ValueError), err:
2897                         parser.error(u'invalid playlist end number specified')
2898                 if opts.extractaudio:
2899                         if opts.audioformat not in ['best', 'aac', 'mp3']:
2900                                 parser.error(u'invalid audio format specified')
2901
2902                 # Information extractors
2903                 youtube_ie = YoutubeIE()
2904                 metacafe_ie = MetacafeIE(youtube_ie)
2905                 dailymotion_ie = DailymotionIE()
2906                 youtube_pl_ie = YoutubePlaylistIE(youtube_ie)
2907                 youtube_user_ie = YoutubeUserIE(youtube_ie)
2908                 youtube_search_ie = YoutubeSearchIE(youtube_ie)
2909                 google_ie = GoogleIE()
2910                 google_search_ie = GoogleSearchIE(google_ie)
2911                 photobucket_ie = PhotobucketIE()
2912                 yahoo_ie = YahooIE()
2913                 yahoo_search_ie = YahooSearchIE(yahoo_ie)
2914                 deposit_files_ie = DepositFilesIE()
2915                 facebook_ie = FacebookIE()
2916                 generic_ie = GenericIE()
2917
2918                 # File downloader
2919                 fd = FileDownloader({
2920                         'usenetrc': opts.usenetrc,
2921                         'username': opts.username,
2922                         'password': opts.password,
2923                         'quiet': (opts.quiet or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename),
2924                         'forceurl': opts.geturl,
2925                         'forcetitle': opts.gettitle,
2926                         'forcethumbnail': opts.getthumbnail,
2927                         'forcedescription': opts.getdescription,
2928                         'forcefilename': opts.getfilename,
2929                         'simulate': (opts.simulate or opts.geturl or opts.gettitle or opts.getthumbnail or opts.getdescription or opts.getfilename),
2930                         'format': opts.format,
2931                         'format_limit': opts.format_limit,
2932                         'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(preferredencoding()))
2933                                 or (opts.format == '-1' and opts.usetitle and u'%(stitle)s-%(id)s-%(format)s.%(ext)s')
2934                                 or (opts.format == '-1' and opts.useliteral and u'%(title)s-%(id)s-%(format)s.%(ext)s')
2935                                 or (opts.format == '-1' and u'%(id)s-%(format)s.%(ext)s')
2936                                 or (opts.usetitle and opts.autonumber and u'%(autonumber)s-%(stitle)s-%(id)s.%(ext)s')
2937                                 or (opts.useliteral and opts.autonumber and u'%(autonumber)s-%(title)s-%(id)s.%(ext)s')
2938                                 or (opts.usetitle and u'%(stitle)s-%(id)s.%(ext)s')
2939                                 or (opts.useliteral and u'%(title)s-%(id)s.%(ext)s')
2940                                 or (opts.autonumber and u'%(autonumber)s-%(id)s.%(ext)s')
2941                                 or u'%(id)s.%(ext)s'),
2942                         'ignoreerrors': opts.ignoreerrors,
2943                         'ratelimit': opts.ratelimit,
2944                         'nooverwrites': opts.nooverwrites,
2945                         'retries': opts.retries,
2946                         'continuedl': opts.continue_dl,
2947                         'noprogress': opts.noprogress,
2948                         'playliststart': opts.playliststart,
2949                         'playlistend': opts.playlistend,
2950                         'logtostderr': opts.outtmpl == '-',
2951                         'consoletitle': opts.consoletitle,
2952                         'nopart': opts.nopart,
2953                         'updatetime': opts.updatetime,
2954                         })
2955                 fd.add_info_extractor(youtube_search_ie)
2956                 fd.add_info_extractor(youtube_pl_ie)
2957                 fd.add_info_extractor(youtube_user_ie)
2958                 fd.add_info_extractor(metacafe_ie)
2959                 fd.add_info_extractor(dailymotion_ie)
2960                 fd.add_info_extractor(youtube_ie)
2961                 fd.add_info_extractor(google_ie)
2962                 fd.add_info_extractor(google_search_ie)
2963                 fd.add_info_extractor(photobucket_ie)
2964                 fd.add_info_extractor(yahoo_ie)
2965                 fd.add_info_extractor(yahoo_search_ie)
2966                 fd.add_info_extractor(deposit_files_ie)
2967                 fd.add_info_extractor(facebook_ie)
2968
2969                 # This must come last since it's the
2970                 # fallback if none of the others work
2971                 fd.add_info_extractor(generic_ie)
2972
2973                 # PostProcessors
2974                 if opts.extractaudio:
2975                         fd.add_post_processor(FFmpegExtractAudioPP(preferredcodec=opts.audioformat))
2976
2977                 # Update version
2978                 if opts.update_self:
2979                         update_self(fd, sys.argv[0])
2980
2981                 # Maybe do nothing
2982                 if len(all_urls) < 1:
2983                         if not opts.update_self:
2984                                 parser.error(u'you must provide at least one URL')
2985                         else:
2986                                 sys.exit()
2987                 retcode = fd.download(all_urls)
2988
2989                 # Dump cookie jar if requested
2990                 if opts.cookiefile is not None:
2991                         try:
2992                                 jar.save()
2993                         except (IOError, OSError), err:
2994                                 sys.exit(u'ERROR: unable to save cookie jar')
2995
2996                 sys.exit(retcode)
2997
2998         except DownloadError:
2999                 sys.exit(1)
3000         except SameFileError:
3001                 sys.exit(u'ERROR: fixed output name but more than one file to download')
3002         except KeyboardInterrupt:
3003                 sys.exit(u'\nERROR: Interrupted by user')