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888 lines
38 KiB
888 lines
38 KiB
#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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from __future__ import absolute_import |
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import math |
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import io |
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import os |
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import re |
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import socket |
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import subprocess |
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import sys |
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import time |
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import traceback |
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|
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if os.name == 'nt': |
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import ctypes |
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from .utils import * |
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class FileDownloader(object): |
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"""File Downloader class. |
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|
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File downloader objects are the ones responsible of downloading the |
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actual video file and writing it to disk if the user has requested |
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it, among some other tasks. In most cases there should be one per |
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program. As, given a video URL, the downloader doesn't know how to |
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extract all the needed information, task that InfoExtractors do, it |
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has to pass the URL to one of them. |
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For this, file downloader objects have a method that allows |
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InfoExtractors to be registered in a given order. When it is passed |
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a URL, the file downloader handles it to the first InfoExtractor it |
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finds that reports being able to handle it. The InfoExtractor extracts |
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all the information about the video or videos the URL refers to, and |
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asks the FileDownloader to process the video information, possibly |
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downloading the video. |
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File downloaders accept a lot of parameters. In order not to saturate |
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the object constructor with arguments, it receives a dictionary of |
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options instead. These options are available through the params |
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attribute for the InfoExtractors to use. The FileDownloader also |
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registers itself as the downloader in charge for the InfoExtractors |
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that are added to it, so this is a "mutual registration". |
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Available options: |
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username: Username for authentication purposes. |
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password: Password for authentication purposes. |
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usenetrc: Use netrc for authentication instead. |
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quiet: Do not print messages to stdout. |
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forceurl: Force printing final URL. |
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forcetitle: Force printing title. |
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forcethumbnail: Force printing thumbnail URL. |
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forcedescription: Force printing description. |
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forcefilename: Force printing final filename. |
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simulate: Do not download the video files. |
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format: Video format code. |
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format_limit: Highest quality format to try. |
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outtmpl: Template for output names. |
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restrictfilenames: Do not allow "&" and spaces in file names |
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ignoreerrors: Do not stop on download errors. |
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ratelimit: Download speed limit, in bytes/sec. |
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nooverwrites: Prevent overwriting files. |
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retries: Number of times to retry for HTTP error 5xx |
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buffersize: Size of download buffer in bytes. |
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noresizebuffer: Do not automatically resize the download buffer. |
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continuedl: Try to continue downloads if possible. |
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noprogress: Do not print the progress bar. |
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playliststart: Playlist item to start at. |
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playlistend: Playlist item to end at. |
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matchtitle: Download only matching titles. |
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rejecttitle: Reject downloads for matching titles. |
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logtostderr: Log messages to stderr instead of stdout. |
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consoletitle: Display progress in console window's titlebar. |
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nopart: Do not use temporary .part files. |
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updatetime: Use the Last-modified header to set output file timestamps. |
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writedescription: Write the video description to a .description file |
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writeinfojson: Write the video description to a .info.json file |
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writesubtitles: Write the video subtitles to a file |
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onlysubtitles: Downloads only the subtitles of the video |
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allsubtitles: Downloads all the subtitles of the video |
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listsubtitles: Lists all available subtitles for the video |
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subtitlesformat: Subtitle format [sbv/srt] (default=srt) |
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subtitleslang: Language of the subtitles to download |
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test: Download only first bytes to test the downloader. |
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keepvideo: Keep the video file after post-processing |
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min_filesize: Skip files smaller than this size |
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max_filesize: Skip files larger than this size |
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""" |
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params = None |
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_ies = [] |
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_pps = [] |
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_download_retcode = None |
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_num_downloads = None |
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_screen_file = None |
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def __init__(self, params): |
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"""Create a FileDownloader object with the given options.""" |
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self._ies = [] |
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self._pps = [] |
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self._progress_hooks = [] |
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self._download_retcode = 0 |
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self._num_downloads = 0 |
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self._screen_file = [sys.stdout, sys.stderr][params.get('logtostderr', False)] |
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self.params = params |
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if '%(stitle)s' in self.params['outtmpl']: |
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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.') |
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@staticmethod |
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def format_bytes(bytes): |
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if bytes is None: |
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return 'N/A' |
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if type(bytes) is str: |
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bytes = float(bytes) |
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if bytes == 0.0: |
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exponent = 0 |
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else: |
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exponent = int(math.log(bytes, 1024.0)) |
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suffix = 'bkMGTPEZY'[exponent] |
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converted = float(bytes) / float(1024 ** exponent) |
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return '%.2f%s' % (converted, suffix) |
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@staticmethod |
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def calc_percent(byte_counter, data_len): |
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if data_len is None: |
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return '---.-%' |
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return '%6s' % ('%3.1f%%' % (float(byte_counter) / float(data_len) * 100.0)) |
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@staticmethod |
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def calc_eta(start, now, total, current): |
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if total is None: |
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return '--:--' |
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dif = now - start |
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if current == 0 or dif < 0.001: # One millisecond |
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return '--:--' |
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rate = float(current) / dif |
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eta = int((float(total) - float(current)) / rate) |
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(eta_mins, eta_secs) = divmod(eta, 60) |
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if eta_mins > 99: |
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return '--:--' |
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return '%02d:%02d' % (eta_mins, eta_secs) |
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@staticmethod |
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def calc_speed(start, now, bytes): |
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dif = now - start |
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if bytes == 0 or dif < 0.001: # One millisecond |
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return '%10s' % '---b/s' |
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return '%10s' % ('%s/s' % FileDownloader.format_bytes(float(bytes) / dif)) |
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@staticmethod |
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def best_block_size(elapsed_time, bytes): |
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new_min = max(bytes / 2.0, 1.0) |
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new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB |
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if elapsed_time < 0.001: |
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return int(new_max) |
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rate = bytes / elapsed_time |
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if rate > new_max: |
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return int(new_max) |
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if rate < new_min: |
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return int(new_min) |
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return int(rate) |
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@staticmethod |
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def parse_bytes(bytestr): |
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"""Parse a string indicating a byte quantity into an integer.""" |
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matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr) |
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if matchobj is None: |
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return None |
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number = float(matchobj.group(1)) |
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multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower()) |
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return int(round(number * multiplier)) |
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def add_info_extractor(self, ie): |
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"""Add an InfoExtractor object to the end of the list.""" |
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self._ies.append(ie) |
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ie.set_downloader(self) |
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def add_post_processor(self, pp): |
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"""Add a PostProcessor object to the end of the chain.""" |
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self._pps.append(pp) |
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pp.set_downloader(self) |
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def to_screen(self, message, skip_eol=False): |
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"""Print message to stdout if not in quiet mode.""" |
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assert type(message) == type(u'') |
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if not self.params.get('quiet', False): |
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terminator = [u'\n', u''][skip_eol] |
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output = message + terminator |
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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 |
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output = output.encode(preferredencoding(), 'ignore') |
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self._screen_file.write(output) |
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self._screen_file.flush() |
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def to_stderr(self, message): |
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"""Print message to stderr.""" |
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assert type(message) == type(u'') |
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output = message + u'\n' |
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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 |
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output = output.encode(preferredencoding()) |
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sys.stderr.write(output) |
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def to_cons_title(self, message): |
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"""Set console/terminal window title to message.""" |
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if not self.params.get('consoletitle', False): |
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return |
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if os.name == 'nt' and ctypes.windll.kernel32.GetConsoleWindow(): |
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# c_wchar_p() might not be necessary if `message` is |
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# already of type unicode() |
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ctypes.windll.kernel32.SetConsoleTitleW(ctypes.c_wchar_p(message)) |
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elif 'TERM' in os.environ: |
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self.to_screen('\033]0;%s\007' % message, skip_eol=True) |
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def fixed_template(self): |
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"""Checks if the output template is fixed.""" |
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return (re.search(u'(?u)%\\(.+?\\)s', self.params['outtmpl']) is None) |
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def trouble(self, message=None, tb=None): |
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"""Determine action to take when a download problem appears. |
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Depending on if the downloader has been configured to ignore |
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download errors or not, this method may throw an exception or |
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not when errors are found, after printing the message. |
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tb, if given, is additional traceback information. |
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""" |
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if message is not None: |
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self.to_stderr(message) |
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if self.params.get('verbose'): |
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if tb is None: |
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if sys.exc_info()[0]: # if .trouble has been called from an except block |
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tb = u'' |
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if hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]: |
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tb += u''.join(traceback.format_exception(*sys.exc_info()[1].exc_info)) |
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tb += compat_str(traceback.format_exc()) |
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else: |
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tb_data = traceback.format_list(traceback.extract_stack()) |
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tb = u''.join(tb_data) |
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self.to_stderr(tb) |
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if not self.params.get('ignoreerrors', False): |
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if sys.exc_info()[0] and hasattr(sys.exc_info()[1], 'exc_info') and sys.exc_info()[1].exc_info[0]: |
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exc_info = sys.exc_info()[1].exc_info |
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else: |
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exc_info = sys.exc_info() |
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raise DownloadError(message, exc_info) |
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self._download_retcode = 1 |
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def report_warning(self, message): |
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''' |
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Print the message to stderr, it will be prefixed with 'WARNING:' |
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If stderr is a tty file the 'WARNING:' will be colored |
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''' |
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if sys.stderr.isatty(): |
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_msg_header=u'\033[0;33mWARNING:\033[0m' |
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else: |
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_msg_header=u'WARNING:' |
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warning_message=u'%s %s' % (_msg_header,message) |
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self.to_stderr(warning_message) |
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def report_error(self, message, tb=None): |
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''' |
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Do the same as trouble, but prefixes the message with 'ERROR:', colored |
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in red if stderr is a tty file. |
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''' |
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if sys.stderr.isatty(): |
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_msg_header = u'\033[0;31mERROR:\033[0m' |
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else: |
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_msg_header = u'ERROR:' |
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error_message = u'%s %s' % (_msg_header, message) |
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self.trouble(error_message, tb) |
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def slow_down(self, start_time, byte_counter): |
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"""Sleep if the download speed is over the rate limit.""" |
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rate_limit = self.params.get('ratelimit', None) |
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if rate_limit is None or byte_counter == 0: |
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return |
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now = time.time() |
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elapsed = now - start_time |
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if elapsed <= 0.0: |
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return |
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speed = float(byte_counter) / elapsed |
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if speed > rate_limit: |
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time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit) |
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def temp_name(self, filename): |
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"""Returns a temporary filename for the given filename.""" |
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if self.params.get('nopart', False) or filename == u'-' or \ |
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(os.path.exists(encodeFilename(filename)) and not os.path.isfile(encodeFilename(filename))): |
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return filename |
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return filename + u'.part' |
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def undo_temp_name(self, filename): |
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if filename.endswith(u'.part'): |
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return filename[:-len(u'.part')] |
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return filename |
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def try_rename(self, old_filename, new_filename): |
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try: |
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if old_filename == new_filename: |
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return |
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os.rename(encodeFilename(old_filename), encodeFilename(new_filename)) |
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except (IOError, OSError) as err: |
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self.report_error(u'unable to rename file') |
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def try_utime(self, filename, last_modified_hdr): |
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"""Try to set the last-modified time of the given file.""" |
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if last_modified_hdr is None: |
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return |
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if not os.path.isfile(encodeFilename(filename)): |
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return |
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timestr = last_modified_hdr |
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if timestr is None: |
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return |
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filetime = timeconvert(timestr) |
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if filetime is None: |
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return filetime |
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try: |
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os.utime(filename, (time.time(), filetime)) |
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except: |
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pass |
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return filetime |
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def report_writedescription(self, descfn): |
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""" Report that the description file is being written """ |
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self.to_screen(u'[info] Writing video description to: ' + descfn) |
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def report_writesubtitles(self, sub_filename): |
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""" Report that the subtitles file is being written """ |
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self.to_screen(u'[info] Writing video subtitles to: ' + sub_filename) |
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def report_writeinfojson(self, infofn): |
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""" Report that the metadata file has been written """ |
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self.to_screen(u'[info] Video description metadata as JSON to: ' + infofn) |
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def report_destination(self, filename): |
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"""Report destination filename.""" |
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self.to_screen(u'[download] Destination: ' + filename) |
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def report_progress(self, percent_str, data_len_str, speed_str, eta_str): |
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"""Report download progress.""" |
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if self.params.get('noprogress', False): |
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return |
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if self.params.get('progress_with_newline', False): |
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self.to_screen(u'[download] %s of %s at %s ETA %s' % |
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(percent_str, data_len_str, speed_str, eta_str)) |
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else: |
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self.to_screen(u'\r[download] %s of %s at %s ETA %s' % |
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(percent_str, data_len_str, speed_str, eta_str), skip_eol=True) |
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self.to_cons_title(u'youtube-dl - %s of %s at %s ETA %s' % |
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(percent_str.strip(), data_len_str.strip(), speed_str.strip(), eta_str.strip())) |
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def report_resuming_byte(self, resume_len): |
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"""Report attempt to resume at given byte.""" |
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self.to_screen(u'[download] Resuming download at byte %s' % resume_len) |
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def report_retry(self, count, retries): |
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"""Report retry in case of HTTP error 5xx""" |
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self.to_screen(u'[download] Got server HTTP error. Retrying (attempt %d of %d)...' % (count, retries)) |
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def report_file_already_downloaded(self, file_name): |
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"""Report file has already been fully downloaded.""" |
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try: |
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self.to_screen(u'[download] %s has already been downloaded' % file_name) |
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except (UnicodeEncodeError) as err: |
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self.to_screen(u'[download] The file has already been downloaded') |
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def report_unable_to_resume(self): |
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"""Report it was impossible to resume download.""" |
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self.to_screen(u'[download] Unable to resume') |
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def report_finish(self): |
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"""Report download finished.""" |
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if self.params.get('noprogress', False): |
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self.to_screen(u'[download] Download completed') |
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else: |
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self.to_screen(u'') |
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def increment_downloads(self): |
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"""Increment the ordinal that assigns a number to each file.""" |
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self._num_downloads += 1 |
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def prepare_filename(self, info_dict): |
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"""Generate the output filename.""" |
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try: |
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template_dict = dict(info_dict) |
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template_dict['epoch'] = int(time.time()) |
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template_dict['autonumber'] = u'%05d' % self._num_downloads |
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sanitize = lambda k,v: sanitize_filename( |
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u'NA' if v is None else compat_str(v), |
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restricted=self.params.get('restrictfilenames'), |
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is_id=(k==u'id')) |
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template_dict = dict((k, sanitize(k, v)) for k,v in template_dict.items()) |
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filename = self.params['outtmpl'] % template_dict |
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return filename |
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except KeyError as err: |
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self.trouble(u'ERROR: Erroneous output template') |
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return None |
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except ValueError as err: |
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self.trouble(u'ERROR: Insufficient system charset ' + repr(preferredencoding())) |
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return None |
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def _match_entry(self, info_dict): |
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""" Returns None iff the file should be downloaded """ |
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title = info_dict['title'] |
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matchtitle = self.params.get('matchtitle', False) |
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if matchtitle: |
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if not re.search(matchtitle, title, re.IGNORECASE): |
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return u'[download] "' + title + '" title did not match pattern "' + matchtitle + '"' |
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rejecttitle = self.params.get('rejecttitle', False) |
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if rejecttitle: |
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if re.search(rejecttitle, title, re.IGNORECASE): |
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return u'"' + title + '" title matched reject pattern "' + rejecttitle + '"' |
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return None |
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|
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def process_info(self, info_dict): |
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"""Process a single dictionary returned by an InfoExtractor.""" |
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|
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# Keep for backwards compatibility |
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info_dict['stitle'] = info_dict['title'] |
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if not 'format' in info_dict: |
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info_dict['format'] = info_dict['ext'] |
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reason = self._match_entry(info_dict) |
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if reason is not None: |
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self.to_screen(u'[download] ' + reason) |
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return |
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max_downloads = self.params.get('max_downloads') |
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if max_downloads is not None: |
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if self._num_downloads > int(max_downloads): |
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raise MaxDownloadsReached() |
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filename = self.prepare_filename(info_dict) |
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|
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# Forced printings |
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if self.params.get('forcetitle', False): |
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compat_print(info_dict['title']) |
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if self.params.get('forceurl', False): |
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compat_print(info_dict['url']) |
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if self.params.get('forcethumbnail', False) and 'thumbnail' in info_dict: |
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compat_print(info_dict['thumbnail']) |
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if self.params.get('forcedescription', False) and 'description' in info_dict: |
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compat_print(info_dict['description']) |
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if self.params.get('forcefilename', False) and filename is not None: |
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compat_print(filename) |
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if self.params.get('forceformat', False): |
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compat_print(info_dict['format']) |
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|
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# Do nothing else if in simulate mode |
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if self.params.get('simulate', False): |
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return |
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|
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if filename is None: |
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return |
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try: |
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dn = os.path.dirname(encodeFilename(filename)) |
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if dn != '' and not os.path.exists(dn): # dn is already encoded |
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os.makedirs(dn) |
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except (OSError, IOError) as err: |
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self.report_error(u'unable to create directory ' + compat_str(err)) |
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return |
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|
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if self.params.get('writedescription', False): |
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try: |
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descfn = filename + u'.description' |
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self.report_writedescription(descfn) |
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with io.open(encodeFilename(descfn), 'w', encoding='utf-8') as descfile: |
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descfile.write(info_dict['description']) |
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except (OSError, IOError): |
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self.report_error(u'Cannot write description file ' + descfn) |
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return |
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|
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if self.params.get('writesubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']: |
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# subtitles download errors are already managed as troubles in relevant IE |
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# that way it will silently go on when used with unsupporting IE |
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subtitle = info_dict['subtitles'][0] |
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(sub_error, sub_lang, sub) = subtitle |
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sub_format = self.params.get('subtitlesformat') |
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try: |
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sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format |
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self.report_writesubtitles(sub_filename) |
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with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile: |
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subfile.write(sub) |
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except (OSError, IOError): |
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self.report_error(u'Cannot write subtitles file ' + descfn) |
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return |
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if self.params.get('onlysubtitles', False): |
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return |
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|
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if self.params.get('allsubtitles', False) and 'subtitles' in info_dict and info_dict['subtitles']: |
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subtitles = info_dict['subtitles'] |
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sub_format = self.params.get('subtitlesformat') |
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for subtitle in subtitles: |
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(sub_error, sub_lang, sub) = subtitle |
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try: |
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sub_filename = filename.rsplit('.', 1)[0] + u'.' + sub_lang + u'.' + sub_format |
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self.report_writesubtitles(sub_filename) |
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with io.open(encodeFilename(sub_filename), 'w', encoding='utf-8') as subfile: |
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subfile.write(sub) |
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except (OSError, IOError): |
|
self.trouble(u'ERROR: Cannot write subtitles file ' + descfn) |
|
return |
|
if self.params.get('onlysubtitles', False): |
|
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 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: |
|
suitable_found = False |
|
for ie in self._ies: |
|
# Go to next InfoExtractor if not suitable |
|
if not ie.suitable(url): |
|
continue |
|
|
|
# Warn if the _WORKING attribute is False |
|
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. If you want to go on, use the -i option.') |
|
|
|
# Suitable InfoExtractor found |
|
suitable_found = True |
|
|
|
# Extract information from URL and process it |
|
try: |
|
videos = ie.extract(url) |
|
except ExtractorError as de: # An error we somewhat expected |
|
self.trouble(u'ERROR: ' + compat_str(de), de.format_traceback()) |
|
break |
|
except MaxDownloadsReached: |
|
self.to_screen(u'[info] Maximum number of downloaded files reached.') |
|
raise |
|
except Exception as e: |
|
if self.params.get('ignoreerrors', False): |
|
self.report_error(u'' + compat_str(e), tb=compat_str(traceback.format_exc())) |
|
break |
|
else: |
|
raise |
|
|
|
if len(videos or []) > 1 and self.fixed_template(): |
|
raise SameFileError(self.params['outtmpl']) |
|
|
|
for video in videos or []: |
|
video['extractor'] = ie.IE_NAME |
|
try: |
|
self.increment_downloads() |
|
self.process_info(video) |
|
except UnavailableVideoError: |
|
self.to_stderr(u"\n") |
|
self.report_error(u'unable to download video') |
|
|
|
# Suitable InfoExtractor had been found; go to next URL |
|
break |
|
|
|
if not suitable_found: |
|
self.report_error(u'no suitable InfoExtractor: %s' % url) |
|
|
|
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): |
|
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 |
|
|
|
# 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', '-q', '-r', url, '-o', tmpfilename] |
|
if player_url is not None: |
|
basic_args += ['-W', player_url] |
|
if page_url is not None: |
|
basic_args += ['--pageUrl', page_url] |
|
args = basic_args + [[], ['-e', '-k', '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 _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)) |
|
|
|
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): |
|
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)
|
|
|