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Merge tag 'upstream/2012.02.27+gita171dbf'
[youtubedl] / youtube_dl / FileDownloader.py
1 #!/usr/bin/env python
2 # -*- coding: utf-8 -*-
3
4 import httplib
5 import math
6 import os
7 import re
8 import socket
9 import subprocess
10 import sys
11 import time
12 import urllib2
13
14 if os.name == 'nt':
15 import ctypes
16
17 from utils import *
18
19
20 class FileDownloader(object):
21 """File Downloader class.
22
23 File downloader objects are the ones responsible of downloading the
24 actual video file and writing it to disk if the user has requested
25 it, among some other tasks. In most cases there should be one per
26 program. As, given a video URL, the downloader doesn't know how to
27 extract all the needed information, task that InfoExtractors do, it
28 has to pass the URL to one of them.
29
30 For this, file downloader objects have a method that allows
31 InfoExtractors to be registered in a given order. When it is passed
32 a URL, the file downloader handles it to the first InfoExtractor it
33 finds that reports being able to handle it. The InfoExtractor extracts
34 all the information about the video or videos the URL refers to, and
35 asks the FileDownloader to process the video information, possibly
36 downloading the video.
37
38 File downloaders accept a lot of parameters. In order not to saturate
39 the object constructor with arguments, it receives a dictionary of
40 options instead. These options are available through the params
41 attribute for the InfoExtractors to use. The FileDownloader also
42 registers itself as the downloader in charge for the InfoExtractors
43 that are added to it, so this is a "mutual registration".
44
45 Available options:
46
47 username: Username for authentication purposes.
48 password: Password for authentication purposes.
49 usenetrc: Use netrc for authentication instead.
50 quiet: Do not print messages to stdout.
51 forceurl: Force printing final URL.
52 forcetitle: Force printing title.
53 forcethumbnail: Force printing thumbnail URL.
54 forcedescription: Force printing description.
55 forcefilename: Force printing final filename.
56 simulate: Do not download the video files.
57 format: Video format code.
58 format_limit: Highest quality format to try.
59 outtmpl: Template for output names.
60 ignoreerrors: Do not stop on download errors.
61 ratelimit: Download speed limit, in bytes/sec.
62 nooverwrites: Prevent overwriting files.
63 retries: Number of times to retry for HTTP error 5xx
64 continuedl: Try to continue downloads if possible.
65 noprogress: Do not print the progress bar.
66 playliststart: Playlist item to start at.
67 playlistend: Playlist item to end at.
68 matchtitle: Download only matching titles.
69 rejecttitle: Reject downloads for matching titles.
70 logtostderr: Log messages to stderr instead of stdout.
71 consoletitle: Display progress in console window's titlebar.
72 nopart: Do not use temporary .part files.
73 updatetime: Use the Last-modified header to set output file timestamps.
74 writedescription: Write the video description to a .description file
75 writeinfojson: Write the video description to a .info.json file
76 writesubtitles: Write the video subtitles to a .srt file
77 subtitleslang: Language of the subtitles to download
78 """
79
80 params = None
81 _ies = []
82 _pps = []
83 _download_retcode = None
84 _num_downloads = None
85 _screen_file = None
86
87 def __init__(self, params):
88 """Create a FileDownloader object with the given options."""
89 self._ies = []
90 self._pps = []
91 self._download_retcode = 0
92 self._num_downloads = 0
93 self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)]
94 self.params = params
95
96 @staticmethod
97 def format_bytes(bytes):
98 if bytes is None:
99 return 'N/A'
100 if type(bytes) is str:
101 bytes = float(bytes)
102 if bytes == 0.0:
103 exponent = 0
104 else:
105 exponent = long(math.log(bytes, 1024.0))
106 suffix = 'bkMGTPEZY'[exponent]
107 converted = float(bytes) / float(1024 ** exponent)
108 return '%.2f%s' % (converted, suffix)
109
110 @staticmethod
111 def calc_percent(byte_counter, data_len):
112 if data_len is None:
113 return '---.-%'
114 return '%6s' % ('%3.1f%%' % (float(byte_counter) / float(data_len) * 100.0))
115
116 @staticmethod
117 def calc_eta(start, now, total, current):
118 if total is None:
119 return '--:--'
120 dif = now - start
121 if current == 0 or dif < 0.001: # One millisecond
122 return '--:--'
123 rate = float(current) / dif
124 eta = long((float(total) - float(current)) / rate)
125 (eta_mins, eta_secs) = divmod(eta, 60)
126 if eta_mins > 99:
127 return '--:--'
128 return '%02d:%02d' % (eta_mins, eta_secs)
129
130 @staticmethod
131 def calc_speed(start, now, bytes):
132 dif = now - start
133 if bytes == 0 or dif < 0.001: # One millisecond
134 return '%10s' % '---b/s'
135 return '%10s' % ('%s/s' % FileDownloader.format_bytes(float(bytes) / dif))
136
137 @staticmethod
138 def best_block_size(elapsed_time, bytes):
139 new_min = max(bytes / 2.0, 1.0)
140 new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB
141 if elapsed_time < 0.001:
142 return long(new_max)
143 rate = bytes / elapsed_time
144 if rate > new_max:
145 return long(new_max)
146 if rate < new_min:
147 return long(new_min)
148 return long(rate)
149
150 @staticmethod
151 def parse_bytes(bytestr):
152 """Parse a string indicating a byte quantity into a long integer."""
153 matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr)
154 if matchobj is None:
155 return None
156 number = float(matchobj.group(1))
157 multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower())
158 return long(round(number * multiplier))
159
160 def add_info_extractor(self, ie):
161 """Add an InfoExtractor object to the end of the list."""
162 self._ies.append(ie)
163 ie.set_downloader(self)
164
165 def add_post_processor(self, pp):
166 """Add a PostProcessor object to the end of the chain."""
167 self._pps.append(pp)
168 pp.set_downloader(self)
169
170 def to_screen(self, message, skip_eol=False):
171 """Print message to stdout if not in quiet mode."""
172 assert type(message) == type(u'')
173 if not self.params.get('quiet', False):
174 terminator = [u'\n', u''][skip_eol]
175 output = message + terminator
176
177 if 'b' not in self._screen_file.mode or sys.version_info[0] < 3: # Python 2 lies about the mode of sys.stdout/sys.stderr
178 output = output.encode(preferredencoding(), 'ignore')
179 self._screen_file.write(output)
180 self._screen_file.flush()
181
182 def to_stderr(self, message):
183 """Print message to stderr."""
184 print >>sys.stderr, message.encode(preferredencoding())
185
186 def to_cons_title(self, message):
187 """Set console/terminal window title to message."""
188 if not self.params.get('consoletitle', False):
189 return
190 if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow():
191 # c_wchar_p() might not be necessary if `message` is
192 # already of type unicode()
193 ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message))
194 elif 'TERM' in os.environ:
195 sys.stderr.write('\033]0;%s\007' % message.encode(preferredencoding()))
196
197 def fixed_template(self):
198 """Checks if the output template is fixed."""
199 return (re.search(ur'(?u)%\(.+?\)s', self.params['outtmpl']) is None)
200
201 def trouble(self, message=None):
202 """Determine action to take when a download problem appears.
203
204 Depending on if the downloader has been configured to ignore
205 download errors or not, this method may throw an exception or
206 not when errors are found, after printing the message.
207 """
208 if message is not None:
209 self.to_stderr(message)
210 if not self.params.get('ignoreerrors', False):
211 raise DownloadError(message)
212 self._download_retcode = 1
213
214 def slow_down(self, start_time, byte_counter):
215 """Sleep if the download speed is over the rate limit."""
216 rate_limit = self.params.get('ratelimit', None)
217 if rate_limit is None or byte_counter == 0:
218 return
219 now = time.time()
220 elapsed = now - start_time
221 if elapsed <= 0.0:
222 return
223 speed = float(byte_counter) / elapsed
224 if speed > rate_limit:
225 time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit)
226
227 def temp_name(self, filename):
228 """Returns a temporary filename for the given filename."""
229 if self.params.get('nopart', False) or filename == u'-' or \
230 (os.path.exists(encodeFilename(filename)) and not os.path.isfile(encodeFilename(filename))):
231 return filename
232 return filename + u'.part'
233
234 def undo_temp_name(self, filename):
235 if filename.endswith(u'.part'):
236 return filename[:-len(u'.part')]
237 return filename
238
239 def try_rename(self, old_filename, new_filename):
240 try:
241 if old_filename == new_filename:
242 return
243 os.rename(encodeFilename(old_filename), encodeFilename(new_filename))
244 except (IOError, OSError), err:
245 self.trouble(u'ERROR: unable to rename file')
246
247 def try_utime(self, filename, last_modified_hdr):
248 """Try to set the last-modified time of the given file."""
249 if last_modified_hdr is None:
250 return
251 if not os.path.isfile(encodeFilename(filename)):
252 return
253 timestr = last_modified_hdr
254 if timestr is None:
255 return
256 filetime = timeconvert(timestr)
257 if filetime is None:
258 return filetime
259 try:
260 os.utime(filename, (time.time(), filetime))
261 except:
262 pass
263 return filetime
264
265 def report_writedescription(self, descfn):
266 """ Report that the description file is being written """
267 self.to_screen(u'[info] Writing video description to: ' + descfn)
268
269 def report_writesubtitles(self, srtfn):
270 """ Report that the subtitles file is being written """
271 self.to_screen(u'[info] Writing video subtitles to: ' + srtfn)
272
273 def report_writeinfojson(self, infofn):
274 """ Report that the metadata file has been written """
275 self.to_screen(u'[info] Video description metadata as JSON to: ' + infofn)
276
277 def report_destination(self, filename):
278 """Report destination filename."""
279 self.to_screen(u'[download] Destination: ' + filename)
280
281 def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
282 """Report download progress."""
283 if self.params.get('noprogress', False):
284 return
285 self.to_screen(u'\r[download] %s of %s at %s ETA %s' %
286 (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
287 self.to_cons_title(u'youtube-dl - %s of %s at %s ETA %s' %
288 (percent_str.strip(), data_len_str.strip(), speed_str.strip(), eta_str.strip()))
289
290 def report_resuming_byte(self, resume_len):
291 """Report attempt to resume at given byte."""
292 self.to_screen(u'[download] Resuming download at byte %s' % resume_len)
293
294 def report_retry(self, count, retries):
295 """Report retry in case of HTTP error 5xx"""
296 self.to_screen(u'[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries))
297
298 def report_file_already_downloaded(self, file_name):
299 """Report file has already been fully downloaded."""
300 try:
301 self.to_screen(u'[download] %s has already been downloaded' % file_name)
302 except (UnicodeEncodeError), err:
303 self.to_screen(u'[download] The file has already been downloaded')
304
305 def report_unable_to_resume(self):
306 """Report it was impossible to resume download."""
307 self.to_screen(u'[download] Unable to resume')
308
309 def report_finish(self):
310 """Report download finished."""
311 if self.params.get('noprogress', False):
312 self.to_screen(u'[download] Download completed')
313 else:
314 self.to_screen(u'')
315
316 def increment_downloads(self):
317 """Increment the ordinal that assigns a number to each file."""
318 self._num_downloads += 1
319
320 def prepare_filename(self, info_dict):
321 """Generate the output filename."""
322 try:
323 template_dict = dict(info_dict)
324 template_dict['epoch'] = unicode(long(time.time()))
325 template_dict['autonumber'] = unicode('%05d' % self._num_downloads)
326 filename = self.params['outtmpl'] % template_dict
327 return filename
328 except (ValueError, KeyError), err:
329 self.trouble(u'ERROR: invalid system charset or erroneous output template')
330 return None
331
332 def _match_entry(self, info_dict):
333 """ Returns None iff the file should be downloaded """
334
335 title = info_dict['title']
336 matchtitle = self.params.get('matchtitle', False)
337 if matchtitle and not re.search(matchtitle, title, re.IGNORECASE):
338 return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"'
339 rejecttitle = self.params.get('rejecttitle', False)
340 if rejecttitle and re.search(rejecttitle, title, re.IGNORECASE):
341 return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"'
342 return None
343
344 def process_info(self, info_dict):
345 """Process a single dictionary returned by an InfoExtractor."""
346
347 info_dict['stitle'] = sanitize_filename(info_dict['title'])
348
349 reason = self._match_entry(info_dict)
350 if reason is not None:
351 self.to_screen(u'[download] ' + reason)
352 return
353
354 max_downloads = self.params.get('max_downloads')
355 if max_downloads is not None:
356 if self._num_downloads > int(max_downloads):
357 raise MaxDownloadsReached()
358
359 filename = self.prepare_filename(info_dict)
360
361 # Forced printings
362 if self.params.get('forcetitle', False):
363 print info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace')
364 if self.params.get('forceurl', False):
365 print info_dict['url'].encode(preferredencoding(), 'xmlcharrefreplace')
366 if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict:
367 print info_dict['thumbnail'].encode(preferredencoding(), 'xmlcharrefreplace')
368 if self.params.get('forcedescription', False) and 'description' in info_dict:
369 print info_dict['description'].encode(preferredencoding(), 'xmlcharrefreplace')
370 if self.params.get('forcefilename', False) and filename is not None:
371 print filename.encode(preferredencoding(), 'xmlcharrefreplace')
372 if self.params.get('forceformat', False):
373 print info_dict['format'].encode(preferredencoding(), 'xmlcharrefreplace')
374
375 # Do nothing else if in simulate mode
376 if self.params.get('simulate', False):
377 return
378
379 if filename is None:
380 return
381
382 try:
383 dn = os.path.dirname(encodeFilename(filename))
384 if dn != '' and not os.path.exists(dn): # dn is already encoded
385 os.makedirs(dn)
386 except (OSError, IOError), err:
387 self.trouble(u'ERROR: unable to create directory ' + unicode(err))
388 return
389
390 if self.params.get('writedescription', False):
391 try:
392 descfn = filename + u'.description'
393 self.report_writedescription(descfn)
394 descfile = open(encodeFilename(descfn), 'wb')
395 try:
396 descfile.write(info_dict['description'].encode('utf-8'))
397 finally:
398 descfile.close()
399 except (OSError, IOError):
400 self.trouble(u'ERROR: Cannot write description file ' + descfn)
401 return
402
403 if self.params.get('writesubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']:
404 # subtitles download errors are already managed as troubles in relevant IE
405 # that way it will silently go on when used with unsupporting IE
406 try:
407 srtfn = filename.rsplit('.', 1)[0] + u'.srt'
408 self.report_writesubtitles(srtfn)
409 srtfile = open(encodeFilename(srtfn), 'wb')
410 try:
411 srtfile.write(info_dict['subtitles'].encode('utf-8'))
412 finally:
413 srtfile.close()
414 except (OSError, IOError):
415 self.trouble(u'ERROR: Cannot write subtitles file ' + descfn)
416 return
417
418 if self.params.get('writeinfojson', False):
419 infofn = filename + u'.info.json'
420 self.report_writeinfojson(infofn)
421 try:
422 json.dump
423 except (NameError,AttributeError):
424 self.trouble(u'ERROR: No JSON encoder found. Update to Python 2.6+, setup a json module, or leave out --write-info-json.')
425 return
426 try:
427 infof = open(encodeFilename(infofn), 'wb')
428 try:
429 json_info_dict = dict((k,v) for k,v in info_dict.iteritems() if not k in ('urlhandle',))
430 json.dump(json_info_dict, infof)
431 finally:
432 infof.close()
433 except (OSError, IOError):
434 self.trouble(u'ERROR: Cannot write metadata to JSON file ' + infofn)
435 return
436
437 if not self.params.get('skip_download', False):
438 if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(filename)):
439 success = True
440 else:
441 try:
442 success = self._do_download(filename, info_dict)
443 except (OSError, IOError), err:
444 raise UnavailableVideoError
445 except (urllib2.URLError, httplib.HTTPException, socket.error), err:
446 self.trouble(u'ERROR: unable to download video data: %s' % str(err))
447 return
448 except (ContentTooShortError, ), err:
449 self.trouble(u'ERROR: content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded))
450 return
451
452 if success:
453 try:
454 self.post_process(filename, info_dict)
455 except (PostProcessingError), err:
456 self.trouble(u'ERROR: postprocessing: %s' % str(err))
457 return
458
459 def download(self, url_list):
460 """Download a given list of URLs."""
461 if len(url_list) > 1 and self.fixed_template():
462 raise SameFileError(self.params['outtmpl'])
463
464 for url in url_list:
465 suitable_found = False
466 for ie in self._ies:
467 # Go to next InfoExtractor if not suitable
468 if not ie.suitable(url):
469 continue
470
471 # Suitable InfoExtractor found
472 suitable_found = True
473
474 # Extract information from URL and process it
475 videos = ie.extract(url)
476 for video in videos or []:
477 try:
478 self.increment_downloads()
479 self.process_info(video)
480 except UnavailableVideoError:
481 self.trouble(u'\nERROR: unable to download video')
482
483 # Suitable InfoExtractor had been found; go to next URL
484 break
485
486 if not suitable_found:
487 self.trouble(u'ERROR: no suitable InfoExtractor: %s' % url)
488
489 return self._download_retcode
490
491 def post_process(self, filename, ie_info):
492 """Run the postprocessing chain on the given file."""
493 info = dict(ie_info)
494 info['filepath'] = filename
495 for pp in self._pps:
496 info = pp.run(info)
497 if info is None:
498 break
499
500 def _download_with_rtmpdump(self, filename, url, player_url):
501 self.report_destination(filename)
502 tmpfilename = self.temp_name(filename)
503
504 # Check for rtmpdump first
505 try:
506 subprocess.call(['rtmpdump', '-h'], stdout=(file(os.path.devnull, 'w')), stderr=subprocess.STDOUT)
507 except (OSError, IOError):
508 self.trouble(u'ERROR: RTMP download detected but "rtmpdump" could not be run')
509 return False
510
511 # Download using rtmpdump. rtmpdump returns exit code 2 when
512 # the connection was interrumpted and resuming appears to be
513 # possible. This is part of rtmpdump's normal usage, AFAIK.
514 basic_args = ['rtmpdump', '-q'] + [[], ['-W', player_url]][player_url is not None] + ['-r', url, '-o', tmpfilename]
515 args = basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)]
516 if self.params.get('verbose', False):
517 try:
518 import pipes
519 shell_quote = lambda args: ' '.join(map(pipes.quote, args))
520 except ImportError:
521 shell_quote = repr
522 self.to_screen(u'[debug] rtmpdump command line: ' + shell_quote(args))
523 retval = subprocess.call(args)
524 while retval == 2 or retval == 1:
525 prevsize = os.path.getsize(encodeFilename(tmpfilename))
526 self.to_screen(u'\r[rtmpdump] %s bytes' % prevsize, skip_eol=True)
527 time.sleep(5.0) # This seems to be needed
528 retval = subprocess.call(basic_args + ['-e'] + [[], ['-k', '1']][retval == 1])
529 cursize = os.path.getsize(encodeFilename(tmpfilename))
530 if prevsize == cursize and retval == 1:
531 break
532 # Some rtmp streams seem abort after ~ 99.8%. Don't complain for those
533 if prevsize == cursize and retval == 2 and cursize > 1024:
534 self.to_screen(u'\r[rtmpdump] Could not download the whole video. This can happen for some advertisements.')
535 retval = 0
536 break
537 if retval == 0:
538 self.to_screen(u'\r[rtmpdump] %s bytes' % os.path.getsize(encodeFilename(tmpfilename)))
539 self.try_rename(tmpfilename, filename)
540 return True
541 else:
542 self.trouble(u'\nERROR: rtmpdump exited with code %d' % retval)
543 return False
544
545 def _do_download(self, filename, info_dict):
546 url = info_dict['url']
547 player_url = info_dict.get('player_url', None)
548
549 # Check file already present
550 if self.params.get('continuedl', False) and os.path.isfile(encodeFilename(filename)) and not self.params.get('nopart', False):
551 self.report_file_already_downloaded(filename)
552 return True
553
554 # Attempt to download using rtmpdump
555 if url.startswith('rtmp'):
556 return self._download_with_rtmpdump(filename, url, player_url)
557
558 tmpfilename = self.temp_name(filename)
559 stream = None
560
561 # Do not include the Accept-Encoding header
562 headers = {'Youtubedl-no-compression': 'True'}
563 basic_request = urllib2.Request(url, None, headers)
564 request = urllib2.Request(url, None, headers)
565
566 # Establish possible resume length
567 if os.path.isfile(encodeFilename(tmpfilename)):
568 resume_len = os.path.getsize(encodeFilename(tmpfilename))
569 else:
570 resume_len = 0
571
572 open_mode = 'wb'
573 if resume_len != 0:
574 if self.params.get('continuedl', False):
575 self.report_resuming_byte(resume_len)
576 request.add_header('Range','bytes=%d-' % resume_len)
577 open_mode = 'ab'
578 else:
579 resume_len = 0
580
581 count = 0
582 retries = self.params.get('retries', 0)
583 while count <= retries:
584 # Establish connection
585 try:
586 if count == 0 and 'urlhandle' in info_dict:
587 data = info_dict['urlhandle']
588 data = urllib2.urlopen(request)
589 break
590 except (urllib2.HTTPError, ), err:
591 if (err.code < 500 or err.code >= 600) and err.code != 416:
592 # Unexpected HTTP error
593 raise
594 elif err.code == 416:
595 # Unable to resume (requested range not satisfiable)
596 try:
597 # Open the connection again without the range header
598 data = urllib2.urlopen(basic_request)
599 content_length = data.info()['Content-Length']
600 except (urllib2.HTTPError, ), err:
601 if err.code < 500 or err.code >= 600:
602 raise
603 else:
604 # Examine the reported length
605 if (content_length is not None and
606 (resume_len - 100 < long(content_length) < resume_len + 100)):
607 # The file had already been fully downloaded.
608 # Explanation to the above condition: in issue #175 it was revealed that
609 # YouTube sometimes adds or removes a few bytes from the end of the file,
610 # changing the file size slightly and causing problems for some users. So
611 # I decided to implement a suggested change and consider the file
612 # completely downloaded if the file size differs less than 100 bytes from
613 # the one in the hard drive.
614 self.report_file_already_downloaded(filename)
615 self.try_rename(tmpfilename, filename)
616 return True
617 else:
618 # The length does not match, we start the download over
619 self.report_unable_to_resume()
620 open_mode = 'wb'
621 break
622 # Retry
623 count += 1
624 if count <= retries:
625 self.report_retry(count, retries)
626
627 if count > retries:
628 self.trouble(u'ERROR: giving up after %s retries' % retries)
629 return False
630
631 data_len = data.info().get('Content-length', None)
632 if data_len is not None:
633 data_len = long(data_len) + resume_len
634 data_len_str = self.format_bytes(data_len)
635 byte_counter = 0 + resume_len
636 block_size = 1024
637 start = time.time()
638 while True:
639 # Download and write
640 before = time.time()
641 data_block = data.read(block_size)
642 after = time.time()
643 if len(data_block) == 0:
644 break
645 byte_counter += len(data_block)
646
647 # Open file just in time
648 if stream is None:
649 try:
650 (stream, tmpfilename) = sanitize_open(tmpfilename, open_mode)
651 assert stream is not None
652 filename = self.undo_temp_name(tmpfilename)
653 self.report_destination(filename)
654 except (OSError, IOError), err:
655 self.trouble(u'ERROR: unable to open for writing: %s' % str(err))
656 return False
657 try:
658 stream.write(data_block)
659 except (IOError, OSError), err:
660 self.trouble(u'\nERROR: unable to write data: %s' % str(err))
661 return False
662 block_size = self.best_block_size(after - before, len(data_block))
663
664 # Progress message
665 speed_str = self.calc_speed(start, time.time(), byte_counter - resume_len)
666 if data_len is None:
667 self.report_progress('Unknown %', data_len_str, speed_str, 'Unknown ETA')
668 else:
669 percent_str = self.calc_percent(byte_counter, data_len)
670 eta_str = self.calc_eta(start, time.time(), data_len - resume_len, byte_counter - resume_len)
671 self.report_progress(percent_str, data_len_str, speed_str, eta_str)
672
673 # Apply rate limit
674 self.slow_down(start, byte_counter - resume_len)
675
676 if stream is None:
677 self.trouble(u'\nERROR: Did not get any data blocks')
678 return False
679 stream.close()
680 self.report_finish()
681 if data_len is not None and byte_counter != data_len:
682 raise ContentTooShortError(byte_counter, long(data_len))
683 self.try_rename(tmpfilename, filename)
684
685 # Update file modification time
686 if self.params.get('updatetime', True):
687 info_dict['filetime'] = self.try_utime(filename, data.info().get('last-modified', None))
688
689 return True