2 # -*- coding: utf-8 -*-
4 from __future__ import absolute_import
22 class FileDownloader(object):
23 """File Downloader class.
25 File downloader objects are the ones responsible of downloading the
26 actual video file and writing it to disk if the user has requested
27 it, among some other tasks. In most cases there should be one per
28 program. As, given a video URL, the downloader doesn't know how to
29 extract all the needed information, task that InfoExtractors do, it
30 has to pass the URL to one of them.
32 For this, file downloader objects have a method that allows
33 InfoExtractors to be registered in a given order. When it is passed
34 a URL, the file downloader handles it to the first InfoExtractor it
35 finds that reports being able to handle it. The InfoExtractor extracts
36 all the information about the video or videos the URL refers to, and
37 asks the FileDownloader to process the video information, possibly
38 downloading the video.
40 File downloaders accept a lot of parameters. In order not to saturate
41 the object constructor with arguments, it receives a dictionary of
42 options instead. These options are available through the params
43 attribute for the InfoExtractors to use. The FileDownloader also
44 registers itself as the downloader in charge for the InfoExtractors
45 that are added to it, so this is a "mutual registration".
49 username: Username for authentication purposes.
50 password: Password for authentication purposes.
51 usenetrc: Use netrc for authentication instead.
52 quiet: Do not print messages to stdout.
53 forceurl: Force printing final URL.
54 forcetitle: Force printing title.
55 forcethumbnail: Force printing thumbnail URL.
56 forcedescription: Force printing description.
57 forcefilename: Force printing final filename.
58 simulate: Do not download the video files.
59 format: Video format code.
60 format_limit: Highest quality format to try.
61 outtmpl: Template for output names.
62 restrictfilenames: Do not allow "&" and spaces in file names
63 ignoreerrors: Do not stop on download errors.
64 ratelimit: Download speed limit, in bytes/sec.
65 nooverwrites: Prevent overwriting files.
66 retries: Number of times to retry for HTTP error 5xx
67 buffersize: Size of download buffer in bytes.
68 noresizebuffer: Do not automatically resize the download buffer.
69 continuedl: Try to continue downloads if possible.
70 noprogress: Do not print the progress bar.
71 playliststart: Playlist item to start at.
72 playlistend: Playlist item to end at.
73 matchtitle: Download only matching titles.
74 rejecttitle: Reject downloads for matching titles.
75 logtostderr: Log messages to stderr instead of stdout.
76 consoletitle: Display progress in console window's titlebar.
77 nopart: Do not use temporary .part files.
78 updatetime: Use the Last-modified header to set output file timestamps.
79 writedescription: Write the video description to a .description file
80 writeinfojson: Write the video description to a .info.json file
81 writesubtitles: Write the video subtitles to a file
82 onlysubtitles: Downloads only the subtitles of the video
83 allsubtitles: Downloads all the subtitles of the video
84 listsubtitles: Lists all available subtitles for the video
85 subtitlesformat: Subtitle format [sbv/srt] (default=srt)
86 subtitleslang: Language of the subtitles to download
87 test: Download only first bytes to test the downloader.
88 keepvideo: Keep the video file after post-processing
89 min_filesize: Skip files smaller than this size
90 max_filesize: Skip files larger than this size
96 _download_retcode = None
100 def __init__(self, params):
101 """Create a FileDownloader object with the given options."""
104 self._progress_hooks = []
105 self._download_retcode = 0
106 self._num_downloads = 0
107 self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)]
110 if '%(stitle)s' in self.params['outtmpl']:
111 self.report_warning(u'%(stitle)s is deprecated. Use the %(title)s and the --restrict-filenames flag(which also secures %(uploader)s et al) instead.')
114 def format_bytes(bytes):
117 if type(bytes) is str:
122 exponent = int(math.log(bytes, 1024.0))
123 suffix = 'bkMGTPEZY'[exponent]
124 converted = float(bytes) / float(1024 ** exponent)
125 return '%.2f%s' % (converted, suffix)
128 def calc_percent(byte_counter, data_len):
131 return '%6s' % ('%3.1f%%' % (float(byte_counter) / float(data_len) * 100.0))
134 def calc_eta(start, now, total, current):
138 if current == 0 or dif < 0.001: # One millisecond
140 rate = float(current) / dif
141 eta = int((float(total) - float(current)) / rate)
142 (eta_mins, eta_secs) = divmod(eta, 60)
145 return '%02d:%02d' % (eta_mins, eta_secs)
148 def calc_speed(start, now, bytes):
150 if bytes == 0 or dif < 0.001: # One millisecond
151 return '%10s' % '---b/s'
152 return '%10s' % ('%s/s' % FileDownloader.format_bytes(float(bytes) / dif))
155 def best_block_size(elapsed_time, bytes):
156 new_min = max(bytes / 2.0, 1.0)
157 new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB
158 if elapsed_time < 0.001:
160 rate = bytes / elapsed_time
168 def parse_bytes(bytestr):
169 """Parse a string indicating a byte quantity into an integer."""
170 matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr)
173 number = float(matchobj.group(1))
174 multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower())
175 return int(round(number * multiplier))
177 def add_info_extractor(self, ie):
178 """Add an InfoExtractor object to the end of the list."""
180 ie.set_downloader(self)
182 def add_post_processor(self, pp):
183 """Add a PostProcessor object to the end of the chain."""
185 pp.set_downloader(self)
187 def to_screen(self, message, skip_eol=False):
188 """Print message to stdout if not in quiet mode."""
189 assert type(message) == type(u'')
190 if not self.params.get('quiet', False):
191 terminator = [u'\n', u''][skip_eol]
192 output = message + terminator
193 if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
194 output = output.encode(preferredencoding(), 'ignore')
195 self._screen_file.write(output)
196 self._screen_file.flush()
198 def to_stderr(self, message):
199 """Print message to stderr."""
200 assert type(message) == type(u'')
201 output = message + u'\n'
202 if 'b' in getattr(self._screen_file, 'mode', '') or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
203 output = output.encode(preferredencoding())
204 sys.stderr.write(output)
206 def to_cons_title(self, message):
207 """Set console/terminal window title to message."""
208 if not self.params.get('consoletitle', False):
210 if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow():
211 # c_wchar_p() might not be necessary if `message` is
212 # already of type unicode()
213 ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
214 elif 'TERM' in os.environ:
215 self.to_screen('\033]0;%s\007' % message, skip_eol=True)
217 def fixed_template(self):
218 """Checks if the output template is fixed."""
219 return (re.search(u'(?u)%\\(.+?\\)s', self.params['outtmpl']) is None)
221 def trouble(self, message=None, tb=None):
222 """Determine action to take when a download problem appears.
224 Depending on if the downloader has been configured to ignore
225 download errors or not, this method may throw an exception or
226 not when errors are found, after printing the message.
228 tb, if given, is additional traceback information.
230 if message is not None:
231 self.to_stderr(message)
232 if self.params.get('verbose'):
234 if sys.exc_info()[0]: # if .trouble has been called from an except block
236 if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
237 tb += u''.join(traceback.format_exception(*sys.exc_info()[1].exc_info))
238 tb += compat_str(traceback.format_exc())
240 tb_data = traceback.format_list(traceback.extract_stack())
241 tb = u''.join(tb_data)
243 if not self.params.get('ignoreerrors', False):
244 if sys.exc_info()[0] and hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]:
245 exc_info = sys.exc_info()[1].exc_info
247 exc_info = sys.exc_info()
248 raise DownloadError(message, exc_info)
249 self._download_retcode = 1
251 def report_warning(self, message):
253 Print the message to stderr, it will be prefixed with 'WARNING:'
254 If stderr is a tty file the 'WARNING:' will be colored
256 if sys.stderr.isatty():
257 _msg_header=u'\033[0;33mWARNING:\033[0m'
259 _msg_header=u'WARNING:'
260 warning_message=u'%s %s' % (_msg_header,message)
261 self.to_stderr(warning_message)
263 def report_error(self, message, tb=None):
265 Do the same as trouble, but prefixes the message with 'ERROR:', colored
266 in red if stderr is a tty file.
268 if sys.stderr.isatty():
269 _msg_header = u'\033[0;31mERROR:\033[0m'
271 _msg_header = u'ERROR:'
272 error_message = u'%s %s' % (_msg_header, message)
273 self.trouble(error_message, tb)
275 def slow_down(self, start_time, byte_counter):
276 """Sleep if the download speed is over the rate limit."""
277 rate_limit = self.params.get('ratelimit', None)
278 if rate_limit is None or byte_counter == 0:
281 elapsed = now - start_time
284 speed = float(byte_counter) / elapsed
285 if speed > rate_limit:
286 time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit)
288 def temp_name(self, filename):
289 """Returns a temporary filename for the given filename."""
290 if self.params.get('nopart', False) or filename == u'-' or \
291 (os.path.exists(encodeFilename(filename)) and not os.path.isfile(encodeFilename(filename))):
293 return filename + u'.part'
295 def undo_temp_name(self, filename):
296 if filename.endswith(u'.part'):
297 return filename[:-len(u'.part')]
300 def try_rename(self, old_filename, new_filename):
302 if old_filename == new_filename:
304 os.rename(encodeFilename(old_filename), encodeFilename(new_filename))
305 except (IOError, OSError) as err:
306 self.report_error(u'unable to rename file')
308 def try_utime(self, filename, last_modified_hdr):
309 """Try to set the last-modified time of the given file."""
310 if last_modified_hdr is None:
312 if not os.path.isfile(encodeFilename(filename)):
314 timestr = last_modified_hdr
317 filetime = timeconvert(timestr)
321 os.utime(filename, (time.time(), filetime))
326 def report_writedescription(self, descfn):
327 """ Report that the description file is being written """
328 self.to_screen(u'[info] Writing video description to: ' + descfn)
330 def report_writesubtitles(self, sub_filename):
331 """ Report that the subtitles file is being written """
332 self.to_screen(u'[info] Writing video subtitles to: ' + sub_filename)
334 def report_writeinfojson(self, infofn):
335 """ Report that the metadata file has been written """
336 self.to_screen(u'[info] Video description metadata as JSON to: ' + infofn)
338 def report_destination(self, filename):
339 """Report destination filename."""
340 self.to_screen(u'[download] Destination: ' + filename)
342 def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
343 """Report download progress."""
344 if self.params.get('noprogress', False):
346 if self.params.get('progress_with_newline', False):
347 self.to_screen(u'[download] %s of %s at %s ETA %s' %
348 (percent_str, data_len_str, speed_str, eta_str))
350 self.to_screen(u'\r[download] %s of %s at %s ETA %s' %
351 (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
352 self.to_cons_title(u'youtube-dl - %s of %s at %s ETA %s' %
353 (percent_str.strip(), data_len_str.strip(), speed_str.strip(), eta_str.strip()))
355 def report_resuming_byte(self, resume_len):
356 """Report attempt to resume at given byte."""
357 self.to_screen(u'[download] Resuming download at byte %s' % resume_len)
359 def report_retry(self, count, retries):
360 """Report retry in case of HTTP error 5xx"""
361 self.to_screen(u'[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries))
363 def report_file_already_downloaded(self, file_name):
364 """Report file has already been fully downloaded."""
366 self.to_screen(u'[download] %s has already been downloaded' % file_name)
367 except (UnicodeEncodeError) as err:
368 self.to_screen(u'[download] The file has already been downloaded')
370 def report_unable_to_resume(self):
371 """Report it was impossible to resume download."""
372 self.to_screen(u'[download] Unable to resume')
374 def report_finish(self):
375 """Report download finished."""
376 if self.params.get('noprogress', False):
377 self.to_screen(u'[download] Download completed')
381 def increment_downloads(self):
382 """Increment the ordinal that assigns a number to each file."""
383 self._num_downloads += 1
385 def prepare_filename(self, info_dict):
386 """Generate the output filename."""
388 template_dict = dict(info_dict)
390 template_dict['epoch'] = int(time.time())
391 template_dict['autonumber'] = u'%05d' % self._num_downloads
393 sanitize = lambda k,v: sanitize_filename(
394 u'NA' if v is None else compat_str(v),
395 restricted=self.params.get('restrictfilenames'),
397 template_dict = dict((k, sanitize(k, v)) for k,v in template_dict.items())
399 filename = self.params['outtmpl'] % template_dict
401 except KeyError as err:
402 self.trouble(u'ERROR: Erroneous output template')
404 except ValueError as err:
405 self.trouble(u'ERROR: Insufficient system charset ' + repr(preferredencoding()))
408 def _match_entry(self, info_dict):
409 """ Returns None iff the file should be downloaded """
411 title = info_dict['title']
412 matchtitle = self.params.get('matchtitle', False)
414 if not re.search(matchtitle, title, re.IGNORECASE):
415 return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"'
416 rejecttitle = self.params.get('rejecttitle', False)
418 if re.search(rejecttitle, title, re.IGNORECASE):
419 return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"'
422 def extract_info(self, url, download = True):
424 Returns a list with a dictionary for each video we find.
425 If 'download', also downloads the videos.
427 suitable_found = False
429 # Go to next InfoExtractor if not suitable
430 if not ie.suitable(url):
433 # Warn if the _WORKING attribute is False
435 self.to_stderr(u'WARNING: the program functionality for this site has been marked as broken, '
436 u'and will probably not work. If you want to go on, use the -i option.')
438 # Suitable InfoExtractor found
439 suitable_found = True
441 # Extract information from URL and process it
443 ie_results = ie.extract(url)
445 for ie_result in ie_results:
446 if not 'extractor' in ie_result:
447 #The extractor has already been set somewhere else
448 ie_result['extractor'] = ie.IE_NAME
449 results.append(self.process_ie_result(ie_result, download))
451 except ExtractorError as de: # An error we somewhat expected
452 self.trouble(u'ERROR: ' + compat_str(de), de.format_traceback())
454 except Exception as e:
455 if self.params.get('ignoreerrors', False):
456 self.trouble(u'ERROR: ' + compat_str(e), tb=compat_str(traceback.format_exc()))
460 if not suitable_found:
461 self.trouble(u'ERROR: no suitable InfoExtractor: %s' % url)
463 def process_ie_result(self, ie_result, download = True):
465 Take the result of the ie and return a list of videos.
466 For url elements it will search the suitable ie and get the videos
467 For playlist elements it will process each of the elements of the 'entries' key
469 It will also download the videos if 'download'.
471 result_type = ie_result.get('_type', 'video') #If not given we suppose it's a video, support the dafault old system
472 if result_type == 'video':
473 if 'playlist' not in ie_result:
474 #It isn't part of a playlist
475 ie_result['playlist'] = None
478 self.process_info(ie_result)
480 elif result_type == 'url':
481 #We get the video pointed by the url
482 result = self.extract_info(ie_result['url'], download)[0]
484 elif result_type == 'playlist':
485 #We process each entry in the playlist
486 playlist = ie_result.get('title', None) or ie_result.get('id', None)
487 self.to_screen(u'[download] Downloading playlist: %s' % playlist)
488 n_videos = len(ie_result['entries'])
489 playlist_results = []
490 for i,entry in enumerate(ie_result['entries'],1):
491 self.to_screen(u'[download] Downloading video #%s of %s' %(i, n_videos))
492 entry_result = self.process_ie_result(entry, False)
493 entry_result['playlist'] = playlist
494 #We must do the download here to correctly set the 'playlist' key
496 self.process_info(entry_result)
497 playlist_results.append(entry_result)
498 result = ie_result.copy()
499 result['entries'] = playlist_results
502 def process_info(self, info_dict):
503 """Process a single dictionary returned by an InfoExtractor."""
505 #We increment the download the download count here to match the previous behaviour.
506 self.increment_downloads()
508 # Keep for backwards compatibility
509 info_dict['stitle'] = info_dict['title']
511 if not 'format' in info_dict:
512 info_dict['format'] = info_dict['ext']
514 reason = self._match_entry(info_dict)
515 if reason is not None:
516 self.to_screen(u'[download] ' + reason)
519 max_downloads = self.params.get('max_downloads')
520 if max_downloads is not None:
521 if self._num_downloads > int(max_downloads):
522 raise MaxDownloadsReached()
524 filename = self.prepare_filename(info_dict)
527 if self.params.get('forcetitle', False):
528 compat_print(info_dict['title'])
529 if self.params.get('forceurl', False):
530 compat_print(info_dict['url'])
531 if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict:
532 compat_print(info_dict['thumbnail'])
533 if self.params.get('forcedescription', False) and 'description' in info_dict:
534 compat_print(info_dict['description'])
535 if self.params.get('forcefilename', False) and filename is not None:
536 compat_print(filename)
537 if self.params.get('forceformat', False):
538 compat_print(info_dict['format'])
540 # Do nothing else if in simulate mode
541 if self.params.get('simulate', False):
548 dn = os.path.dirname(encodeFilename(filename))
549 if dn != '' and not os.path.exists(dn): # dn is already encoded
551 except (OSError, IOError) as err:
552 self.report_error(u'unable to create directory ' + compat_str(err))
555 if self.params.get('writedescription', False):
557 descfn = filename + u'.description'
558 self.report_writedescription(descfn)
559 with io.open(encodeFilename(descfn), 'w', encoding='utf-8') as descfile:
560 descfile.write(info_dict['description'])
561 except (OSError, IOError):
562 self.report_error(u'Cannot write description file ' + descfn)
565 if self.params.get('writesubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']:
566 # subtitles download errors are already managed as troubles in relevant IE
567 # that way it will silently go on when used with unsupporting IE
568 subtitle = info_dict['subtitles'][0]
569 (sub_error, sub_lang, sub) = subtitle
570 sub_format = self.params.get('subtitlesformat')
572 self.report_warning("Some error while getting the subtitles")
575 sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format
576 self.report_writesubtitles(sub_filename)
577 with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile:
579 except (OSError, IOError):
580 self.report_error(u'Cannot write subtitles file ' + descfn)
582 if self.params.get('onlysubtitles', False):
585 if self.params.get('allsubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']:
586 subtitles = info_dict['subtitles']
587 sub_format = self.params.get('subtitlesformat')
588 for subtitle in subtitles:
589 (sub_error, sub_lang, sub) = subtitle
591 self.report_warning("Some error while getting the subtitles")
594 sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format
595 self.report_writesubtitles(sub_filename)
596 with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile:
598 except (OSError, IOError):
599 self.trouble(u'ERROR: Cannot write subtitles file ' + descfn)
601 if self.params.get('onlysubtitles', False):
604 if self.params.get('writeinfojson', False):
605 infofn = filename + u'.info.json'
606 self.report_writeinfojson(infofn)
608 json_info_dict = dict((k, v) for k,v in info_dict.items() if not k in ['urlhandle'])
609 write_json_file(json_info_dict, encodeFilename(infofn))
610 except (OSError, IOError):
611 self.report_error(u'Cannot write metadata to JSON file ' + infofn)
614 if not self.params.get('skip_download', False):
615 if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(filename)):
619 success = self._do_download(filename, info_dict)
620 except (OSError, IOError) as err:
621 raise UnavailableVideoError()
622 except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err:
623 self.report_error(u'unable to download video data: %s' % str(err))
625 except (ContentTooShortError, ) as err:
626 self.report_error(u'content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
631 self.post_process(filename, info_dict)
632 except (PostProcessingError) as err:
633 self.report_error(u'postprocessing: %s' % str(err))
636 def download(self, url_list):
637 """Download a given list of URLs."""
638 if len(url_list) > 1 and self.fixed_template():
639 raise SameFileError(self.params['outtmpl'])
643 #It also downloads the videos
644 videos = self.extract_info(url)
645 except UnavailableVideoError:
646 self.trouble(u'\nERROR: unable to download video')
647 except MaxDownloadsReached:
648 self.to_screen(u'[info] Maximum number of downloaded files reached.')
651 return self._download_retcode
653 def post_process(self, filename, ie_info):
654 """Run all the postprocessors on the given file."""
656 info['filepath'] = filename
660 keep_video_wish,new_info = pp.run(info)
661 if keep_video_wish is not None:
663 keep_video = keep_video_wish
664 elif keep_video is None:
665 # No clear decision yet, let IE decide
666 keep_video = keep_video_wish
667 except PostProcessingError as e:
668 self.to_stderr(u'ERROR: ' + e.msg)
669 if keep_video is False and not self.params.get('keepvideo', False):
671 self.to_screen(u'Deleting original file %s (pass -k to keep)' % filename)
672 os.remove(encodeFilename(filename))
673 except (IOError, OSError):
674 self.report_warning(u'Unable to remove downloaded video file')
676 def _download_with_rtmpdump(self, filename, url, player_url, page_url):
677 self.report_destination(filename)
678 tmpfilename = self.temp_name(filename)
680 # Check for rtmpdump first
682 subprocess.call(['rtmpdump', '-h'], stdout=(open(os.path.devnull, 'w')), stderr=subprocess.STDOUT)
683 except (OSError, IOError):
684 self.report_error(u'RTMP download detected but "rtmpdump" could not be run')
687 # Download using rtmpdump. rtmpdump returns exit code 2 when
688 # the connection was interrumpted and resuming appears to be
689 # possible. This is part of rtmpdump's normal usage, AFAIK.
690 basic_args = ['rtmpdump', '-q', '-r', url, '-o', tmpfilename]
691 if player_url is not None:
692 basic_args += ['-W', player_url]
693 if page_url is not None:
694 basic_args += ['--pageUrl', page_url]
695 args = basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)]
696 if self.params.get('verbose', False):
699 shell_quote = lambda args: ' '.join(map(pipes.quote, args))
702 self.to_screen(u'[debug] rtmpdump command line: ' + shell_quote(args))
703 retval = subprocess.call(args)
704 while retval == 2 or retval == 1:
705 prevsize = os.path.getsize(encodeFilename(tmpfilename))
706 self.to_screen(u'\r[rtmpdump] %s bytes' % prevsize, skip_eol=True)
707 time.sleep(5.0) # This seems to be needed
708 retval = subprocess.call(basic_args + ['-e'] + [[], ['-k', '1']][retval == 1])
709 cursize = os.path.getsize(encodeFilename(tmpfilename))
710 if prevsize == cursize and retval == 1:
712 # Some rtmp streams seem abort after ~ 99.8%. Don't complain for those
713 if prevsize == cursize and retval == 2 and cursize > 1024:
714 self.to_screen(u'\r[rtmpdump] Could not download the whole video. This can happen for some advertisements.')
718 fsize = os.path.getsize(encodeFilename(tmpfilename))
719 self.to_screen(u'\r[rtmpdump] %s bytes' % fsize)
720 self.try_rename(tmpfilename, filename)
721 self._hook_progress({
722 'downloaded_bytes': fsize,
723 'total_bytes': fsize,
724 'filename': filename,
725 'status': 'finished',
729 self.to_stderr(u"\n")
730 self.report_error(u'rtmpdump exited with code %d' % retval)
733 def _do_download(self, filename, info_dict):
734 url = info_dict['url']
736 # Check file already present
737 if self.params.get('continuedl', False) and os.path.isfile(encodeFilename(filename)) and not self.params.get('nopart', False):
738 self.report_file_already_downloaded(filename)
739 self._hook_progress({
740 'filename': filename,
741 'status': 'finished',
745 # Attempt to download using rtmpdump
746 if url.startswith('rtmp'):
747 return self._download_with_rtmpdump(filename, url,
748 info_dict.get('player_url', None),
749 info_dict.get('page_url', None))
751 tmpfilename = self.temp_name(filename)
754 # Do not include the Accept-Encoding header
755 headers = {'Youtubedl-no-compression': 'True'}
756 if 'user_agent' in info_dict:
757 headers['Youtubedl-user-agent'] = info_dict['user_agent']
758 basic_request = compat_urllib_request.Request(url, None, headers)
759 request = compat_urllib_request.Request(url, None, headers)
761 if self.params.get('test', False):
762 request.add_header('Range','bytes=0-10240')
764 # Establish possible resume length
765 if os.path.isfile(encodeFilename(tmpfilename)):
766 resume_len = os.path.getsize(encodeFilename(tmpfilename))
772 if self.params.get('continuedl', False):
773 self.report_resuming_byte(resume_len)
774 request.add_header('Range','bytes=%d-' % resume_len)
780 retries = self.params.get('retries', 0)
781 while count <= retries:
782 # Establish connection
784 if count == 0 and 'urlhandle' in info_dict:
785 data = info_dict['urlhandle']
786 data = compat_urllib_request.urlopen(request)
788 except (compat_urllib_error.HTTPError, ) as err:
789 if (err.code < 500 or err.code >= 600) and err.code != 416:
790 # Unexpected HTTP error
792 elif err.code == 416:
793 # Unable to resume (requested range not satisfiable)
795 # Open the connection again without the range header
796 data = compat_urllib_request.urlopen(basic_request)
797 content_length = data.info()['Content-Length']
798 except (compat_urllib_error.HTTPError, ) as err:
799 if err.code < 500 or err.code >= 600:
802 # Examine the reported length
803 if (content_length is not None and
804 (resume_len - 100 < int(content_length) < resume_len + 100)):
805 # The file had already been fully downloaded.
806 # Explanation to the above condition: in issue #175 it was revealed that
807 # YouTube sometimes adds or removes a few bytes from the end of the file,
808 # changing the file size slightly and causing problems for some users. So
809 # I decided to implement a suggested change and consider the file
810 # completely downloaded if the file size differs less than 100 bytes from
811 # the one in the hard drive.
812 self.report_file_already_downloaded(filename)
813 self.try_rename(tmpfilename, filename)
814 self._hook_progress({
815 'filename': filename,
816 'status': 'finished',
820 # The length does not match, we start the download over
821 self.report_unable_to_resume()
827 self.report_retry(count, retries)
830 self.report_error(u'giving up after %s retries' % retries)
833 data_len = data.info().get('Content-length', None)
834 if data_len is not None:
835 data_len = int(data_len) + resume_len
836 min_data_len = self.params.get("min_filesize", None)
837 max_data_len = self.params.get("max_filesize", None)
838 if min_data_len is not None and data_len < min_data_len:
839 self.to_screen(u'\r[download] File is smaller than min-filesize (%s bytes < %s bytes). Aborting.' % (data_len, min_data_len))
841 if max_data_len is not None and data_len > max_data_len:
842 self.to_screen(u'\r[download] File is larger than max-filesize (%s bytes > %s bytes). Aborting.' % (data_len, max_data_len))
845 data_len_str = self.format_bytes(data_len)
846 byte_counter = 0 + resume_len
847 block_size = self.params.get('buffersize', 1024)
852 data_block = data.read(block_size)
854 if len(data_block) == 0:
856 byte_counter += len(data_block)
858 # Open file just in time
861 (stream, tmpfilename) = sanitize_open(tmpfilename, open_mode)
862 assert stream is not None
863 filename = self.undo_temp_name(tmpfilename)
864 self.report_destination(filename)
865 except (OSError, IOError) as err:
866 self.report_error(u'unable to open for writing: %s' % str(err))
869 stream.write(data_block)
870 except (IOError, OSError) as err:
871 self.to_stderr(u"\n")
872 self.report_error(u'unable to write data: %s' % str(err))
874 if not self.params.get('noresizebuffer', False):
875 block_size = self.best_block_size(after - before, len(data_block))
878 speed_str = self.calc_speed(start, time.time(), byte_counter - resume_len)
880 self.report_progress('Unknown %', data_len_str, speed_str, 'Unknown ETA')
882 percent_str = self.calc_percent(byte_counter, data_len)
883 eta_str = self.calc_eta(start, time.time(), data_len - resume_len, byte_counter - resume_len)
884 self.report_progress(percent_str, data_len_str, speed_str, eta_str)
886 self._hook_progress({
887 'downloaded_bytes': byte_counter,
888 'total_bytes': data_len,
889 'tmpfilename': tmpfilename,
890 'filename': filename,
891 'status': 'downloading',
895 self.slow_down(start, byte_counter - resume_len)
898 self.to_stderr(u"\n")
899 self.report_error(u'Did not get any data blocks')
903 if data_len is not None and byte_counter != data_len:
904 raise ContentTooShortError(byte_counter, int(data_len))
905 self.try_rename(tmpfilename, filename)
907 # Update file modification time
908 if self.params.get('updatetime', True):
909 info_dict['filetime'] = self.try_utime(filename, data.info().get('last-modified', None))
911 self._hook_progress({
912 'downloaded_bytes': byte_counter,
913 'total_bytes': byte_counter,
914 'filename': filename,
915 'status': 'finished',
920 def _hook_progress(self, status):
921 for ph in self._progress_hooks:
924 def add_progress_hook(self, ph):
925 """ ph gets called on download progress, with a dictionary with the entries
926 * filename: The final filename
927 * status: One of "downloading" and "finished"
929 It can also have some of the following entries:
931 * downloaded_bytes: Bytes on disks
932 * total_bytes: Total bytes, None if unknown
933 * tmpfilename: The filename we're currently writing to
935 Hooks are guaranteed to be called at least once (with status "finished")
936 if the download is successful.
938 self._progress_hooks.append(ph)