X-Git-Url: https://git.rapsys.eu/youtubedl/blobdiff_plain/9815bb0a551468e4939cacfffbc2d5cb8dd12431..779bc665c512f2802f1436a30b6b09ee7ad83e02:/youtube_dl/FileDownloader.py diff --git a/youtube_dl/FileDownloader.py b/youtube_dl/FileDownloader.py index f21c66c..5c8e676 100644 --- a/youtube_dl/FileDownloader.py +++ b/youtube_dl/FileDownloader.py @@ -1,1058 +1,12 @@ -import math -import io -import os -import re -import shutil -import socket -import subprocess -import sys -import time -import traceback - -if os.name == 'nt': - import ctypes - -from .utils import * -from .extractor import get_info_extractor - - -class FileDownloader(object): - """File Downloader class. - - File downloader objects are the ones responsible of downloading the - actual video file and writing it to disk if the user has requested - it, among some other tasks. In most cases there should be one per - program. As, given a video URL, the downloader doesn't know how to - extract all the needed information, task that InfoExtractors do, it - has to pass the URL to one of them. - - For this, file downloader objects have a method that allows - InfoExtractors to be registered in a given order. When it is passed - a URL, the file downloader handles it to the first InfoExtractor it - finds that reports being able to handle it. The InfoExtractor extracts - all the information about the video or videos the URL refers to, and - asks the FileDownloader to process the video information, possibly - downloading the video. - - File downloaders accept a lot of parameters. In order not to saturate - the object constructor with arguments, it receives a dictionary of - options instead. These options are available through the params - attribute for the InfoExtractors to use. The FileDownloader also - registers itself as the downloader in charge for the InfoExtractors - that are added to it, so this is a "mutual registration". - - Available options: - - username: Username for authentication purposes. - password: Password for authentication purposes. - usenetrc: Use netrc for authentication instead. - quiet: Do not print messages to stdout. - forceurl: Force printing final URL. - forcetitle: Force printing title. - forceid: Force printing ID. - forcethumbnail: Force printing thumbnail URL. - forcedescription: Force printing description. - forcefilename: Force printing final filename. - simulate: Do not download the video files. - format: Video format code. - format_limit: Highest quality format to try. - outtmpl: Template for output names. - restrictfilenames: Do not allow "&" and spaces in file names - ignoreerrors: Do not stop on download errors. - ratelimit: Download speed limit, in bytes/sec. - nooverwrites: Prevent overwriting files. - retries: Number of times to retry for HTTP error 5xx - buffersize: Size of download buffer in bytes. - noresizebuffer: Do not automatically resize the download buffer. - continuedl: Try to continue downloads if possible. - noprogress: Do not print the progress bar. - playliststart: Playlist item to start at. - playlistend: Playlist item to end at. - matchtitle: Download only matching titles. - rejecttitle: Reject downloads for matching titles. - logtostderr: Log messages to stderr instead of stdout. - consoletitle: Display progress in console window's titlebar. - nopart: Do not use temporary .part files. - updatetime: Use the Last-modified header to set output file timestamps. - writedescription: Write the video description to a .description file - writeinfojson: Write the video description to a .info.json file - writethumbnail: Write the thumbnail image to a file - writesubtitles: Write the video subtitles to a file - allsubtitles: Downloads all the subtitles of the video - listsubtitles: Lists all available subtitles for the video - subtitlesformat: Subtitle format [sbv/srt] (default=srt) - subtitleslang: Language of the subtitles to download - test: Download only first bytes to test the downloader. - keepvideo: Keep the video file after post-processing - min_filesize: Skip files smaller than this size - max_filesize: Skip files larger than this size - daterange: A DateRange object, download only if the upload_date is in the range. - skip_download: Skip the actual download of the video file - """ - - params = None - _ies = [] - _pps = [] - _download_retcode = None - _num_downloads = None - _screen_file = None - - def __init__(self, params): - """Create a FileDownloader object with the given options.""" - self._ies = [] - self._pps = [] - self._progress_hooks = [] - self._download_retcode = 0 - self._num_downloads = 0 - self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)] - self.params = params - - if '%(stitle)s' in self.params['outtmpl']: - 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.') - - @staticmethod - def format_bytes(bytes): - if bytes is None: - return 'N/A' - if type(bytes) is str: - bytes = float(bytes) - if bytes == 0.0: - exponent = 0 - else: - exponent = int(math.log(bytes, 1024.0)) - suffix = ['B','KiB','MiB','GiB','TiB','PiB','EiB','ZiB','YiB'][exponent] - converted = float(bytes) / float(1024 ** exponent) - return '%.2f%s' % (converted, suffix) - - @staticmethod - def calc_percent(byte_counter, data_len): - if data_len is None: - return '---.-%' - return '%6s' % ('%3.1f%%' % (float(byte_counter) / float(data_len) * 100.0)) - - @staticmethod - def calc_eta(start, now, total, current): - if total is None: - return '--:--' - dif = now - start - if current == 0 or dif < 0.001: # One millisecond - return '--:--' - rate = float(current) / dif - eta = int((float(total) - float(current)) / rate) - (eta_mins, eta_secs) = divmod(eta, 60) - if eta_mins > 99: - return '--:--' - return '%02d:%02d' % (eta_mins, eta_secs) - - @staticmethod - def calc_speed(start, now, bytes): - dif = now - start - if bytes == 0 or dif < 0.001: # One millisecond - return '%10s' % '---b/s' - return '%10s' % ('%s/s' % FileDownloader.format_bytes(float(bytes) / dif)) - - @staticmethod - def best_block_size(elapsed_time, bytes): - new_min = max(bytes / 2.0, 1.0) - new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB - if elapsed_time < 0.001: - return int(new_max) - rate = bytes / elapsed_time - if rate > new_max: - return int(new_max) - if rate < new_min: - return int(new_min) - return int(rate) - - @staticmethod - def parse_bytes(bytestr): - """Parse a string indicating a byte quantity into an integer.""" - matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr) - if matchobj is None: - return None - number = float(matchobj.group(1)) - multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower()) - return int(round(number * multiplier)) - - def add_info_extractor(self, ie): - """Add an InfoExtractor object to the end of the list.""" - self._ies.append(ie) - ie.set_downloader(self) - - def add_post_processor(self, pp): - """Add a PostProcessor object to the end of the chain.""" - self._pps.append(pp) - pp.set_downloader(self) - - def to_screen(self, message, skip_eol=False): - """Print message to stdout if not in quiet mode.""" - assert type(message) == type(u'') - if not self.params.get('quiet', False): - terminator = [u'\n', u''][skip_eol] - output = message + terminator - 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 - output = output.encode(preferredencoding(), 'ignore') - self._screen_file.write(output) - self._screen_file.flush() - - def to_stderr(self, message): - """Print message to stderr.""" - assert type(message) == type(u'') - output = message + u'\n' - 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 - output = output.encode(preferredencoding()) - sys.stderr.write(output) - - def to_cons_title(self, message): - """Set console/terminal window title to message.""" - if not self.params.get('consoletitle', False): - return - if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow(): - # c_wchar_p() might not be necessary if `message` is - # already of type unicode() - ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message)) - elif 'TERM' in os.environ: - self.to_screen('\033]0;%s\007' % message, skip_eol=True) - - def fixed_template(self): - """Checks if the output template is fixed.""" - return (re.search(u'(?u)%\\(.+?\\)s', self.params['outtmpl']) is None) - - def trouble(self, message=None, tb=None): - """Determine action to take when a download problem appears. - - Depending on if the downloader has been configured to ignore - download errors or not, this method may throw an exception or - not when errors are found, after printing the message. - - tb, if given, is additional traceback information. - """ - if message is not None: - self.to_stderr(message) - if self.params.get('verbose'): - if tb is None: - if sys.exc_info()[0]: # if .trouble has been called from an except block - tb = u'' - if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]: - tb += u''.join(traceback.format_exception(*sys.exc_info()[1].exc_info)) - tb += compat_str(traceback.format_exc()) - else: - tb_data = traceback.format_list(traceback.extract_stack()) - tb = u''.join(tb_data) - self.to_stderr(tb) - if not self.params.get('ignoreerrors', False): - if sys.exc_info()[0] and hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]: - exc_info = sys.exc_info()[1].exc_info - else: - exc_info = sys.exc_info() - raise DownloadError(message, exc_info) - self._download_retcode = 1 - - def report_warning(self, message): - ''' - Print the message to stderr, it will be prefixed with 'WARNING:' - If stderr is a tty file the 'WARNING:' will be colored - ''' - if sys.stderr.isatty() and os.name != 'nt': - _msg_header=u'\033[0;33mWARNING:\033[0m' - else: - _msg_header=u'WARNING:' - warning_message=u'%s %s' % (_msg_header,message) - self.to_stderr(warning_message) - - def report_error(self, message, tb=None): - ''' - Do the same as trouble, but prefixes the message with 'ERROR:', colored - in red if stderr is a tty file. - ''' - if sys.stderr.isatty() and os.name != 'nt': - _msg_header = u'\033[0;31mERROR:\033[0m' - else: - _msg_header = u'ERROR:' - error_message = u'%s %s' % (_msg_header, message) - self.trouble(error_message, tb) - - def slow_down(self, start_time, byte_counter): - """Sleep if the download speed is over the rate limit.""" - rate_limit = self.params.get('ratelimit', None) - if rate_limit is None or byte_counter == 0: - return - now = time.time() - elapsed = now - start_time - if elapsed <= 0.0: - return - speed = float(byte_counter) / elapsed - if speed > rate_limit: - time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit) - - def temp_name(self, filename): - """Returns a temporary filename for the given filename.""" - if self.params.get('nopart', False) or filename == u'-' or \ - (os.path.exists(encodeFilename(filename)) and not os.path.isfile(encodeFilename(filename))): - return filename - return filename + u'.part' - - def undo_temp_name(self, filename): - if filename.endswith(u'.part'): - return filename[:-len(u'.part')] - return filename - - def try_rename(self, old_filename, new_filename): - try: - if old_filename == new_filename: - return - os.rename(encodeFilename(old_filename), encodeFilename(new_filename)) - except (IOError, OSError) as err: - self.report_error(u'unable to rename file') - - def try_utime(self, filename, last_modified_hdr): - """Try to set the last-modified time of the given file.""" - if last_modified_hdr is None: - return - if not os.path.isfile(encodeFilename(filename)): - return - timestr = last_modified_hdr - if timestr is None: - return - filetime = timeconvert(timestr) - if filetime is None: - return filetime - # Ignore obviously invalid dates - if filetime == 0: - return - try: - os.utime(filename, (time.time(), filetime)) - except: - pass - return filetime - - def report_writedescription(self, descfn): - """ Report that the description file is being written """ - self.to_screen(u'[info] Writing video description to: ' + descfn) - - def report_writesubtitles(self, sub_filename): - """ Report that the subtitles file is being written """ - self.to_screen(u'[info] Writing video subtitles to: ' + sub_filename) - - def report_writeinfojson(self, infofn): - """ Report that the metadata file has been written """ - self.to_screen(u'[info] Video description metadata as JSON to: ' + infofn) - - def report_destination(self, filename): - """Report destination filename.""" - self.to_screen(u'[download] Destination: ' + filename) - - def report_progress(self, percent_str, data_len_str, speed_str, eta_str): - """Report download progress.""" - if self.params.get('noprogress', False): - return - clear_line = (u'\x1b[K' if sys.stderr.isatty() and os.name != 'nt' else u'') - if self.params.get('progress_with_newline', False): - self.to_screen(u'[download] %s of %s at %s ETA %s' % - (percent_str, data_len_str, speed_str, eta_str)) - else: - self.to_screen(u'\r%s[download] %s of %s at %s ETA %s' % - (clear_line, percent_str, data_len_str, speed_str, eta_str), skip_eol=True) - self.to_cons_title(u'youtube-dl - %s of %s at %s ETA %s' % - (percent_str.strip(), data_len_str.strip(), speed_str.strip(), eta_str.strip())) - - def report_resuming_byte(self, resume_len): - """Report attempt to resume at given byte.""" - self.to_screen(u'[download] Resuming download at byte %s' % resume_len) - - def report_retry(self, count, retries): - """Report retry in case of HTTP error 5xx""" - self.to_screen(u'[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries)) - - def report_file_already_downloaded(self, file_name): - """Report file has already been fully downloaded.""" - try: - self.to_screen(u'[download] %s has already been downloaded' % file_name) - except (UnicodeEncodeError) as err: - self.to_screen(u'[download] The file has already been downloaded') - - def report_unable_to_resume(self): - """Report it was impossible to resume download.""" - self.to_screen(u'[download] Unable to resume') - - def report_finish(self): - """Report download finished.""" - if self.params.get('noprogress', False): - self.to_screen(u'[download] Download completed') - else: - self.to_screen(u'') - - def increment_downloads(self): - """Increment the ordinal that assigns a number to each file.""" - self._num_downloads += 1 - - def prepare_filename(self, info_dict): - """Generate the output filename.""" - try: - template_dict = dict(info_dict) - - template_dict['epoch'] = int(time.time()) - autonumber_size = self.params.get('autonumber_size') - if autonumber_size is None: - autonumber_size = 5 - autonumber_templ = u'%0' + str(autonumber_size) + u'd' - template_dict['autonumber'] = autonumber_templ % self._num_downloads - if template_dict['playlist_index'] is not None: - template_dict['playlist_index'] = u'%05d' % template_dict['playlist_index'] - - sanitize = lambda k,v: sanitize_filename( - u'NA' if v is None else compat_str(v), - restricted=self.params.get('restrictfilenames'), - is_id=(k==u'id')) - template_dict = dict((k, sanitize(k, v)) for k,v in template_dict.items()) - - filename = self.params['outtmpl'] % template_dict - return filename - except KeyError as err: - self.report_error(u'Erroneous output template') - return None - except ValueError as err: - self.report_error(u'Insufficient system charset ' + repr(preferredencoding())) - return None - - def _match_entry(self, info_dict): - """ Returns None iff the file should be downloaded """ - - title = info_dict['title'] - matchtitle = self.params.get('matchtitle', False) - if matchtitle: - if not re.search(matchtitle, title, re.IGNORECASE): - return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"' - rejecttitle = self.params.get('rejecttitle', False) - if rejecttitle: - if re.search(rejecttitle, title, re.IGNORECASE): - return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"' - date = info_dict.get('upload_date', None) - if date is not None: - dateRange = self.params.get('daterange', DateRange()) - if date not in dateRange: - return u'[download] %s upload date is not in range %s' % (date_from_str(date).isoformat(), dateRange) - return None - - def extract_info(self, url, download=True, ie_key=None, extra_info={}): - ''' - Returns a list with a dictionary for each video we find. - If 'download', also downloads the videos. - extra_info is a dict containing the extra values to add to each result - ''' - - if ie_key: - ie = get_info_extractor(ie_key)() - ie.set_downloader(self) - ies = [ie] - else: - ies = self._ies - - for ie in ies: - if not ie.suitable(url): - continue - - if not ie.working(): - self.report_warning(u'The program functionality for this site has been marked as broken, ' - u'and will probably not work.') - - try: - ie_result = ie.extract(url) - if ie_result is None: # Finished already (backwards compatibility; listformats and friends should be moved here) - break - if isinstance(ie_result, list): - # Backwards compatibility: old IE result format - for result in ie_result: - result.update(extra_info) - ie_result = { - '_type': 'compat_list', - 'entries': ie_result, - } - else: - ie_result.update(extra_info) - if 'extractor' not in ie_result: - ie_result['extractor'] = ie.IE_NAME - return self.process_ie_result(ie_result, download=download) - except ExtractorError as de: # An error we somewhat expected - self.report_error(compat_str(de), de.format_traceback()) - break - except Exception as e: - if self.params.get('ignoreerrors', False): - self.report_error(compat_str(e), tb=compat_str(traceback.format_exc())) - break - else: - raise - else: - self.report_error(u'no suitable InfoExtractor: %s' % url) - - def process_ie_result(self, ie_result, download=True, extra_info={}): - """ - Take the result of the ie(may be modified) and resolve all unresolved - references (URLs, playlist items). - - It will also download the videos if 'download'. - Returns the resolved ie_result. - """ - - result_type = ie_result.get('_type', 'video') # If not given we suppose it's a video, support the default old system - if result_type == 'video': - if 'playlist' not in ie_result: - # It isn't part of a playlist - ie_result['playlist'] = None - ie_result['playlist_index'] = None - if download: - self.process_info(ie_result) - return ie_result - elif result_type == 'url': - # We have to add extra_info to the results because it may be - # contained in a playlist - return self.extract_info(ie_result['url'], - download, - ie_key=ie_result.get('ie_key'), - extra_info=extra_info) - elif result_type == 'playlist': - # We process each entry in the playlist - playlist = ie_result.get('title', None) or ie_result.get('id', None) - self.to_screen(u'[download] Downloading playlist: %s' % playlist) - - playlist_results = [] - - n_all_entries = len(ie_result['entries']) - playliststart = self.params.get('playliststart', 1) - 1 - playlistend = self.params.get('playlistend', -1) - - if playlistend == -1: - entries = ie_result['entries'][playliststart:] - else: - entries = ie_result['entries'][playliststart:playlistend] - - n_entries = len(entries) - - self.to_screen(u"[%s] playlist '%s': Collected %d video ids (downloading %d of them)" % - (ie_result['extractor'], playlist, n_all_entries, n_entries)) - - for i,entry in enumerate(entries,1): - self.to_screen(u'[download] Downloading video #%s of %s' %(i, n_entries)) - extra = { - 'playlist': playlist, - 'playlist_index': i + playliststart, - } - if not 'extractor' in entry: - # We set the extractor, if it's an url it will be set then to - # the new extractor, but if it's already a video we must make - # sure it's present: see issue #877 - entry['extractor'] = ie_result['extractor'] - entry_result = self.process_ie_result(entry, - download=download, - extra_info=extra) - playlist_results.append(entry_result) - ie_result['entries'] = playlist_results - return ie_result - elif result_type == 'compat_list': - def _fixup(r): - r.setdefault('extractor', ie_result['extractor']) - return r - ie_result['entries'] = [ - self.process_ie_result(_fixup(r), download=download) - for r in ie_result['entries'] - ] - return ie_result - else: - raise Exception('Invalid result type: %s' % result_type) - - def process_info(self, info_dict): - """Process a single resolved IE result.""" - - assert info_dict.get('_type', 'video') == 'video' - #We increment the download the download count here to match the previous behaviour. - self.increment_downloads() - - info_dict['fulltitle'] = info_dict['title'] - if len(info_dict['title']) > 200: - info_dict['title'] = info_dict['title'][:197] + u'...' - - # Keep for backwards compatibility - info_dict['stitle'] = info_dict['title'] - - if not 'format' in info_dict: - info_dict['format'] = info_dict['ext'] - - reason = self._match_entry(info_dict) - if reason is not None: - self.to_screen(u'[download] ' + reason) - return - - max_downloads = self.params.get('max_downloads') - if max_downloads is not None: - if self._num_downloads > int(max_downloads): - raise MaxDownloadsReached() - - filename = self.prepare_filename(info_dict) - - # Forced printings - if self.params.get('forcetitle', False): - compat_print(info_dict['title']) - if self.params.get('forceid', False): - compat_print(info_dict['id']) - if self.params.get('forceurl', False): - compat_print(info_dict['url']) - if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict: - compat_print(info_dict['thumbnail']) - if self.params.get('forcedescription', False) and 'description' in info_dict: - compat_print(info_dict['description']) - if self.params.get('forcefilename', False) and filename is not None: - compat_print(filename) - if self.params.get('forceformat', False): - compat_print(info_dict['format']) - - # Do nothing else if in simulate mode - if self.params.get('simulate', False): - return - - if filename is None: - return - - try: - dn = os.path.dirname(encodeFilename(filename)) - if dn != '' and not os.path.exists(dn): - os.makedirs(dn) - except (OSError, IOError) as err: - self.report_error(u'unable to create directory ' + compat_str(err)) - return - - if self.params.get('writedescription', False): - try: - descfn = filename + u'.description' - self.report_writedescription(descfn) - with io.open(encodeFilename(descfn), 'w', encoding='utf-8') as descfile: - descfile.write(info_dict['description']) - except (OSError, IOError): - self.report_error(u'Cannot write description file ' + descfn) - return - - if self.params.get('writesubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']: - # subtitles download errors are already managed as troubles in relevant IE - # that way it will silently go on when used with unsupporting IE - subtitle = info_dict['subtitles'][0] - (sub_error, sub_lang, sub) = subtitle - sub_format = self.params.get('subtitlesformat') - if sub_error: - self.report_warning("Some error while getting the subtitles") - else: - try: - sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format - self.report_writesubtitles(sub_filename) - with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile: - subfile.write(sub) - except (OSError, IOError): - self.report_error(u'Cannot write subtitles file ' + descfn) - return - - if self.params.get('allsubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']: - subtitles = info_dict['subtitles'] - sub_format = self.params.get('subtitlesformat') - for subtitle in subtitles: - (sub_error, sub_lang, sub) = subtitle - if sub_error: - self.report_warning("Some error while getting the subtitles") - else: - try: - sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format - self.report_writesubtitles(sub_filename) - with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile: - subfile.write(sub) - except (OSError, IOError): - self.report_error(u'Cannot write subtitles file ' + descfn) - return - - if self.params.get('writeinfojson', False): - infofn = filename + u'.info.json' - self.report_writeinfojson(infofn) - try: - json_info_dict = dict((k, v) for k,v in info_dict.items() if not k in ['urlhandle']) - write_json_file(json_info_dict, encodeFilename(infofn)) - except (OSError, IOError): - self.report_error(u'Cannot write metadata to JSON file ' + infofn) - return - - if self.params.get('writethumbnail', False): - if 'thumbnail' in info_dict: - thumb_format = info_dict['thumbnail'].rpartition(u'/')[2].rpartition(u'.')[2] - if not thumb_format: - thumb_format = 'jpg' - thumb_filename = filename.rpartition('.')[0] + u'.' + thumb_format - self.to_screen(u'[%s] %s: Downloading thumbnail ...' % - (info_dict['extractor'], info_dict['id'])) - uf = compat_urllib_request.urlopen(info_dict['thumbnail']) - with open(thumb_filename, 'wb') as thumbf: - shutil.copyfileobj(uf, thumbf) - self.to_screen(u'[%s] %s: Writing thumbnail to: %s' % - (info_dict['extractor'], info_dict['id'], thumb_filename)) - - if not self.params.get('skip_download', False): - if self.params.get('nooverwrites', False) and os.path.exists(encodeFilename(filename)): - success = True - else: - try: - success = self._do_download(filename, info_dict) - except (OSError, IOError) as err: - raise UnavailableVideoError() - except (compat_urllib_error.URLError, compat_http_client.HTTPException, socket.error) as err: - self.report_error(u'unable to download video data: %s' % str(err)) - return - except (ContentTooShortError, ) as err: - self.report_error(u'content too short (expected %s bytes and served %s)' % (err.expected, err.downloaded)) - return - - if success: - try: - self.post_process(filename, info_dict) - except (PostProcessingError) as err: - self.report_error(u'postprocessing: %s' % str(err)) - return - - def download(self, url_list): - """Download a given list of URLs.""" - if len(url_list) > 1 and self.fixed_template(): - raise SameFileError(self.params['outtmpl']) - - for url in url_list: - try: - #It also downloads the videos - videos = self.extract_info(url) - except UnavailableVideoError: - self.report_error(u'unable to download video') - except MaxDownloadsReached: - self.to_screen(u'[info] Maximum number of downloaded files reached.') - raise - - return self._download_retcode - - def post_process(self, filename, ie_info): - """Run all the postprocessors on the given file.""" - info = dict(ie_info) - info['filepath'] = filename - keep_video = None - for pp in self._pps: - try: - keep_video_wish,new_info = pp.run(info) - if keep_video_wish is not None: - if keep_video_wish: - keep_video = keep_video_wish - elif keep_video is None: - # No clear decision yet, let IE decide - keep_video = keep_video_wish - except PostProcessingError as e: - self.to_stderr(u'ERROR: ' + e.msg) - if keep_video is False and not self.params.get('keepvideo', False): - try: - self.to_screen(u'Deleting original file %s (pass -k to keep)' % filename) - os.remove(encodeFilename(filename)) - except (IOError, OSError): - self.report_warning(u'Unable to remove downloaded video file') - - def _download_with_rtmpdump(self, filename, url, player_url, page_url, play_path, tc_url): - self.report_destination(filename) - tmpfilename = self.temp_name(filename) - - # Check for rtmpdump first - try: - subprocess.call(['rtmpdump', '-h'], stdout=(open(os.path.devnull, 'w')), stderr=subprocess.STDOUT) - except (OSError, IOError): - self.report_error(u'RTMP download detected but "rtmpdump" could not be run') - return False - verbosity_option = '--verbose' if self.params.get('verbose', False) else '--quiet' - - # Download using rtmpdump. rtmpdump returns exit code 2 when - # the connection was interrumpted and resuming appears to be - # possible. This is part of rtmpdump's normal usage, AFAIK. - basic_args = ['rtmpdump', verbosity_option, '-r', url, '-o', tmpfilename] - if player_url is not None: - basic_args += ['--swfVfy', player_url] - if page_url is not None: - basic_args += ['--pageUrl', page_url] - if play_path is not None: - basic_args += ['--playpath', play_path] - if tc_url is not None: - basic_args += ['--tcUrl', url] - args = basic_args + [[], ['--resume', '--skip', '1']][self.params.get('continuedl', False)] - if self.params.get('verbose', False): - try: - import pipes - shell_quote = lambda args: ' '.join(map(pipes.quote, args)) - except ImportError: - shell_quote = repr - self.to_screen(u'[debug] rtmpdump command line: ' + shell_quote(args)) - retval = subprocess.call(args) - while retval == 2 or retval == 1: - prevsize = os.path.getsize(encodeFilename(tmpfilename)) - self.to_screen(u'\r[rtmpdump] %s bytes' % prevsize, skip_eol=True) - time.sleep(5.0) # This seems to be needed - retval = subprocess.call(basic_args + ['-e'] + [[], ['-k', '1']][retval == 1]) - cursize = os.path.getsize(encodeFilename(tmpfilename)) - if prevsize == cursize and retval == 1: - break - # Some rtmp streams seem abort after ~ 99.8%. Don't complain for those - if prevsize == cursize and retval == 2 and cursize > 1024: - self.to_screen(u'\r[rtmpdump] Could not download the whole video. This can happen for some advertisements.') - retval = 0 - break - if retval == 0: - fsize = os.path.getsize(encodeFilename(tmpfilename)) - self.to_screen(u'\r[rtmpdump] %s bytes' % fsize) - self.try_rename(tmpfilename, filename) - self._hook_progress({ - 'downloaded_bytes': fsize, - 'total_bytes': fsize, - 'filename': filename, - 'status': 'finished', - }) - return True - else: - self.to_stderr(u"\n") - self.report_error(u'rtmpdump exited with code %d' % retval) - return False - - def _download_with_mplayer(self, filename, url): - self.report_destination(filename) - tmpfilename = self.temp_name(filename) - - args = ['mplayer', '-really-quiet', '-vo', 'null', '-vc', 'dummy', '-dumpstream', '-dumpfile', tmpfilename, url] - # Check for mplayer first - try: - subprocess.call(['mplayer', '-h'], stdout=(open(os.path.devnull, 'w')), stderr=subprocess.STDOUT) - except (OSError, IOError): - self.report_error(u'MMS or RTSP download detected but "%s" could not be run' % args[0] ) - return False - - # Download using mplayer. - retval = subprocess.call(args) - if retval == 0: - fsize = os.path.getsize(encodeFilename(tmpfilename)) - self.to_screen(u'\r[%s] %s bytes' % (args[0], fsize)) - self.try_rename(tmpfilename, filename) - self._hook_progress({ - 'downloaded_bytes': fsize, - 'total_bytes': fsize, - 'filename': filename, - 'status': 'finished', - }) - return True - else: - self.to_stderr(u"\n") - self.report_error(u'mplayer exited with code %d' % retval) - return False +# Legacy file for backwards compatibility, use youtube_dl.downloader instead! +from .downloader import FileDownloader as RealFileDownloader +from .downloader import get_suitable_downloader +# This class reproduces the old behaviour of FileDownloader +class FileDownloader(RealFileDownloader): def _do_download(self, filename, info_dict): - url = info_dict['url'] - - # Check file already present - if self.params.get('continuedl', False) and os.path.isfile(encodeFilename(filename)) and not self.params.get('nopart', False): - self.report_file_already_downloaded(filename) - self._hook_progress({ - 'filename': filename, - 'status': 'finished', - }) - return True - - # Attempt to download using rtmpdump - if url.startswith('rtmp'): - return self._download_with_rtmpdump(filename, url, - info_dict.get('player_url', None), - info_dict.get('page_url', None), - info_dict.get('play_path', None), - info_dict.get('tc_url', None)) - - # Attempt to download using mplayer - if url.startswith('mms') or url.startswith('rtsp'): - return self._download_with_mplayer(filename, url) - - tmpfilename = self.temp_name(filename) - stream = None - - # Do not include the Accept-Encoding header - headers = {'Youtubedl-no-compression': 'True'} - if 'user_agent' in info_dict: - headers['Youtubedl-user-agent'] = info_dict['user_agent'] - basic_request = compat_urllib_request.Request(url, None, headers) - request = compat_urllib_request.Request(url, None, headers) - - if self.params.get('test', False): - request.add_header('Range','bytes=0-10240') - - # Establish possible resume length - if os.path.isfile(encodeFilename(tmpfilename)): - resume_len = os.path.getsize(encodeFilename(tmpfilename)) - else: - resume_len = 0 - - open_mode = 'wb' - if resume_len != 0: - if self.params.get('continuedl', False): - self.report_resuming_byte(resume_len) - request.add_header('Range','bytes=%d-' % resume_len) - open_mode = 'ab' - else: - resume_len = 0 - - count = 0 - retries = self.params.get('retries', 0) - while count <= retries: - # Establish connection - try: - if count == 0 and 'urlhandle' in info_dict: - data = info_dict['urlhandle'] - data = compat_urllib_request.urlopen(request) - break - except (compat_urllib_error.HTTPError, ) as err: - if (err.code < 500 or err.code >= 600) and err.code != 416: - # Unexpected HTTP error - raise - elif err.code == 416: - # Unable to resume (requested range not satisfiable) - try: - # Open the connection again without the range header - data = compat_urllib_request.urlopen(basic_request) - content_length = data.info()['Content-Length'] - except (compat_urllib_error.HTTPError, ) as err: - if err.code < 500 or err.code >= 600: - raise - else: - # Examine the reported length - if (content_length is not None and - (resume_len - 100 < int(content_length) < resume_len + 100)): - # The file had already been fully downloaded. - # Explanation to the above condition: in issue #175 it was revealed that - # YouTube sometimes adds or removes a few bytes from the end of the file, - # changing the file size slightly and causing problems for some users. So - # I decided to implement a suggested change and consider the file - # completely downloaded if the file size differs less than 100 bytes from - # the one in the hard drive. - self.report_file_already_downloaded(filename) - self.try_rename(tmpfilename, filename) - self._hook_progress({ - 'filename': filename, - 'status': 'finished', - }) - return True - else: - # The length does not match, we start the download over - self.report_unable_to_resume() - open_mode = 'wb' - break - # Retry - count += 1 - if count <= retries: - self.report_retry(count, retries) - - if count > retries: - self.report_error(u'giving up after %s retries' % retries) - return False - - data_len = data.info().get('Content-length', None) - if data_len is not None: - data_len = int(data_len) + resume_len - min_data_len = self.params.get("min_filesize", None) - max_data_len = self.params.get("max_filesize", None) - if min_data_len is not None and data_len < min_data_len: - self.to_screen(u'\r[download] File is smaller than min-filesize (%s bytes < %s bytes). Aborting.' % (data_len, min_data_len)) - return False - if max_data_len is not None and data_len > max_data_len: - self.to_screen(u'\r[download] File is larger than max-filesize (%s bytes > %s bytes). Aborting.' % (data_len, max_data_len)) - return False - - data_len_str = self.format_bytes(data_len) - byte_counter = 0 + resume_len - block_size = self.params.get('buffersize', 1024) - start = time.time() - while True: - # Download and write - before = time.time() - data_block = data.read(block_size) - after = time.time() - if len(data_block) == 0: - break - byte_counter += len(data_block) - - # Open file just in time - if stream is None: - try: - (stream, tmpfilename) = sanitize_open(tmpfilename, open_mode) - assert stream is not None - filename = self.undo_temp_name(tmpfilename) - self.report_destination(filename) - except (OSError, IOError) as err: - self.report_error(u'unable to open for writing: %s' % str(err)) - return False - try: - stream.write(data_block) - except (IOError, OSError) as err: - self.to_stderr(u"\n") - self.report_error(u'unable to write data: %s' % str(err)) - return False - if not self.params.get('noresizebuffer', False): - block_size = self.best_block_size(after - before, len(data_block)) - - # Progress message - speed_str = self.calc_speed(start, time.time(), byte_counter - resume_len) - if data_len is None: - self.report_progress('Unknown %', data_len_str, speed_str, 'Unknown ETA') - else: - percent_str = self.calc_percent(byte_counter, data_len) - eta_str = self.calc_eta(start, time.time(), data_len - resume_len, byte_counter - resume_len) - self.report_progress(percent_str, data_len_str, speed_str, eta_str) - - self._hook_progress({ - 'downloaded_bytes': byte_counter, - 'total_bytes': data_len, - 'tmpfilename': tmpfilename, - 'filename': filename, - 'status': 'downloading', - }) - - # Apply rate limit - self.slow_down(start, byte_counter - resume_len) - - if stream is None: - self.to_stderr(u"\n") - self.report_error(u'Did not get any data blocks') - return False - stream.close() - self.report_finish() - if data_len is not None and byte_counter != data_len: - raise ContentTooShortError(byte_counter, int(data_len)) - self.try_rename(tmpfilename, filename) - - # Update file modification time - if self.params.get('updatetime', True): - info_dict['filetime'] = self.try_utime(filename, data.info().get('last-modified', None)) - - self._hook_progress({ - 'downloaded_bytes': byte_counter, - 'total_bytes': byte_counter, - 'filename': filename, - 'status': 'finished', - }) - - return True - - def _hook_progress(self, status): + real_fd = get_suitable_downloader(info_dict)(self.ydl, self.params) for ph in self._progress_hooks: - ph(status) - - def add_progress_hook(self, ph): - """ ph gets called on download progress, with a dictionary with the entries - * filename: The final filename - * status: One of "downloading" and "finished" - - It can also have some of the following entries: - - * downloaded_bytes: Bytes on disks - * total_bytes: Total bytes, None if unknown - * tmpfilename: The filename we're currently writing to - - Hooks are guaranteed to be called at least once (with status "finished") - if the download is successful. - """ - self._progress_hooks.append(ph) + real_fd.add_progress_hook(ph) + return real_fd.download(filename, info_dict)