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1048 lines
35 KiB
1048 lines
35 KiB
#!/usr/bin/env python |
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# -*- coding: utf-8 -*- |
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# Author: Ricardo Garcia Gonzalez |
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# Author: Danny Colligan |
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# License: Public domain code |
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import htmlentitydefs |
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import httplib |
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import locale |
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import math |
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import netrc |
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import os |
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import os.path |
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import re |
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import socket |
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import string |
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import sys |
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import time |
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import urllib |
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import urllib2 |
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|
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std_headers = { |
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'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5', |
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'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7', |
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'Accept': 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5', |
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'Accept-Language': 'en-us,en;q=0.5', |
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} |
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|
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simple_title_chars = string.ascii_letters.decode('ascii') + string.digits.decode('ascii') |
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|
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class DownloadError(Exception): |
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"""Download Error exception. |
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|
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This exception may be thrown by FileDownloader objects if they are not |
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configured to continue on errors. They will contain the appropriate |
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error message. |
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""" |
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pass |
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|
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class SameFileError(Exception): |
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"""Same File exception. |
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|
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This exception will be thrown by FileDownloader objects if they detect |
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multiple files would have to be downloaded to the same file on disk. |
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""" |
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pass |
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|
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class PostProcessingError(Exception): |
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"""Post Processing exception. |
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|
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This exception may be raised by PostProcessor's .run() method to |
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indicate an error in the postprocessing task. |
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""" |
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pass |
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|
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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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|
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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 returns |
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all the information to the FileDownloader and the latter downloads the |
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file or does whatever it's instructed to do. |
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|
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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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|
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Available options: |
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|
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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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simulate: Do not download the video files. |
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format: Video format code. |
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outtmpl: Template for output 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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""" |
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|
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params = None |
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_ies = [] |
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_pps = [] |
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|
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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.params = params |
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|
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@staticmethod |
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def pmkdir(filename): |
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"""Create directory components in filename. Similar to Unix "mkdir -p".""" |
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components = filename.split(os.sep) |
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aggregate = [os.sep.join(components[0:x]) for x in xrange(1, len(components))] |
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aggregate = ['%s%s' % (x, os.sep) for x in aggregate] # Finish names with separator |
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for dir in aggregate: |
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if not os.path.exists(dir): |
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os.mkdir(dir) |
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|
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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 bytes == 0: |
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exponent = 0 |
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else: |
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exponent = long(math.log(float(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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|
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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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|
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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 = long((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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|
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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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|
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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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|
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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 a long 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 long(round(number * multiplier)) |
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|
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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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|
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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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|
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def to_stdout(self, message, skip_eol=False): |
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"""Print message to stdout if not in quiet mode.""" |
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if not self.params.get('quiet', False): |
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print u'%s%s' % (message, [u'\n', u''][skip_eol]), |
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sys.stdout.flush() |
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|
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def to_stderr(self, message): |
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"""Print message to stderr.""" |
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print >>sys.stderr, message |
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|
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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(ur'(?u)%\(.+?\)s', self.params['outtmpl']) is None) |
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|
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def trouble(self, message=None): |
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"""Determine action to take when a download problem appears. |
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|
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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. If it |
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doesn't raise, it returns an error code suitable to be returned |
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later as a program exit code to indicate error. |
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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 not self.params.get('ignoreerrors', False): |
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raise DownloadError(message) |
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return 1 |
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|
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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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|
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def report_destination(self, filename): |
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"""Report destination filename.""" |
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self.to_stdout(u'[download] Destination: %s' % filename) |
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|
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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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self.to_stdout(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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|
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def report_finish(self): |
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"""Report download finished.""" |
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self.to_stdout(u'') |
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|
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def download(self, url_list): |
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"""Download a given list of URLs.""" |
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retcode = 0 |
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if len(url_list) > 1 and self.fixed_template(): |
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raise SameFileError(self.params['outtmpl']) |
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|
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for url in url_list: |
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suitable_found = False |
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for ie in self._ies: |
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if not ie.suitable(url): |
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continue |
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# Suitable InfoExtractor found |
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suitable_found = True |
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all_results = ie.extract(url) |
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results = [x for x in all_results if x is not None] |
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if len(results) != len(all_results): |
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retcode = self.trouble() |
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|
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if len(results) > 1 and self.fixed_template(): |
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raise SameFileError(self.params['outtmpl']) |
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|
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for result in results: |
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# Forced printings |
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if self.params.get('forcetitle', False): |
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print result['title'] |
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if self.params.get('forceurl', False): |
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print result['url'] |
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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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continue |
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|
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try: |
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filename = self.params['outtmpl'] % result |
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self.report_destination(filename) |
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except (ValueError, KeyError), err: |
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retcode = self.trouble('ERROR: invalid output template or system charset: %s' % str(err)) |
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continue |
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if self.params['nooverwrites'] and os.path.exists(filename): |
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self.to_stderr('WARNING: file exists: %s; skipping' % filename) |
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continue |
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try: |
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self.pmkdir(filename) |
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except (OSError, IOError), err: |
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retcode = self.trouble('ERROR: unable to create directories: %s' % str(err)) |
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continue |
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try: |
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outstream = open(filename, 'wb') |
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except (OSError, IOError), err: |
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retcode = self.trouble('ERROR: unable to open for writing: %s' % str(err)) |
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continue |
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try: |
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self._do_download(outstream, result['url']) |
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outstream.close() |
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except (OSError, IOError), err: |
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retcode = self.trouble('ERROR: unable to write video data: %s' % str(err)) |
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continue |
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except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
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retcode = self.trouble('ERROR: unable to download video data: %s' % str(err)) |
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continue |
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try: |
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self.post_process(filename, result) |
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except (PostProcessingError), err: |
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retcode = self.trouble('ERROR: postprocessing: %s' % str(err)) |
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continue |
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|
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break |
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if not suitable_found: |
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retcode = self.trouble('ERROR: no suitable InfoExtractor: %s' % url) |
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|
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return retcode |
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|
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def post_process(self, filename, ie_info): |
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"""Run the postprocessing chain on the given file.""" |
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info = dict(ie_info) |
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info['filepath'] = filename |
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for pp in self._pps: |
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info = pp.run(info) |
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if info is None: |
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break |
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|
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def _do_download(self, stream, url): |
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request = urllib2.Request(url, None, std_headers) |
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data = urllib2.urlopen(request) |
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data_len = data.info().get('Content-length', None) |
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data_len_str = self.format_bytes(data_len) |
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byte_counter = 0 |
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block_size = 1024 |
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start = time.time() |
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while True: |
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# Progress message |
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percent_str = self.calc_percent(byte_counter, data_len) |
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eta_str = self.calc_eta(start, time.time(), data_len, byte_counter) |
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speed_str = self.calc_speed(start, time.time(), byte_counter) |
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self.report_progress(percent_str, data_len_str, speed_str, eta_str) |
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|
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# Download and write |
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before = time.time() |
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data_block = data.read(block_size) |
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after = time.time() |
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data_block_len = len(data_block) |
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if data_block_len == 0: |
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break |
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byte_counter += data_block_len |
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stream.write(data_block) |
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block_size = self.best_block_size(after - before, data_block_len) |
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|
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# Apply rate limit |
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self.slow_down(start, byte_counter) |
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|
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self.report_finish() |
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if data_len is not None and str(byte_counter) != data_len: |
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raise ValueError('Content too short: %s/%s bytes' % (byte_counter, data_len)) |
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|
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class InfoExtractor(object): |
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"""Information Extractor class. |
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|
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Information extractors are the classes that, given a URL, extract |
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information from the video (or videos) the URL refers to. This |
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information includes the real video URL, the video title and simplified |
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title, author and others. It is returned in a list of dictionaries when |
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calling its extract() method. It is a list because a URL can refer to |
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more than one video (think of playlists). The dictionaries must include |
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the following fields: |
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|
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id: Video identifier. |
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url: Final video URL. |
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uploader: Nickname of the video uploader. |
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title: Literal title. |
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stitle: Simplified title. |
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ext: Video filename extension. |
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|
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Subclasses of this one should re-define the _real_initialize() and |
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_real_extract() methods, as well as the suitable() static method. |
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Probably, they should also be instantiated and added to the main |
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downloader. |
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""" |
|
|
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_ready = False |
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_downloader = None |
|
|
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def __init__(self, downloader=None): |
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"""Constructor. Receives an optional downloader.""" |
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self._ready = False |
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self.set_downloader(downloader) |
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|
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@staticmethod |
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def suitable(url): |
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"""Receives a URL and returns True if suitable for this IE.""" |
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return False |
|
|
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def initialize(self): |
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"""Initializes an instance (authentication, etc).""" |
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if not self._ready: |
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self._real_initialize() |
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self._ready = True |
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|
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def extract(self, url): |
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"""Extracts URL information and returns it in list of dicts.""" |
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self.initialize() |
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return self._real_extract(url) |
|
|
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def set_downloader(self, downloader): |
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"""Sets the downloader for this IE.""" |
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self._downloader = downloader |
|
|
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def to_stdout(self, message): |
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"""Print message to stdout if downloader is not in quiet mode.""" |
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if self._downloader is None or not self._downloader.params.get('quiet', False): |
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print message |
|
|
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def to_stderr(self, message): |
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"""Print message to stderr.""" |
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print >>sys.stderr, message |
|
|
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def _real_initialize(self): |
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"""Real initialization process. Redefine in subclasses.""" |
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pass |
|
|
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def _real_extract(self, url): |
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"""Real extraction process. Redefine in subclasses.""" |
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pass |
|
|
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class YoutubeIE(InfoExtractor): |
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"""Information extractor for youtube.com.""" |
|
|
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_VALID_URL = r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:(?:v/)|(?:(?:watch(?:\.php)?)?\?(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$' |
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_LANG_URL = r'http://uk.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1' |
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_LOGIN_URL = 'http://www.youtube.com/signup?next=/&gl=US&hl=en' |
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_AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en' |
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_NETRC_MACHINE = 'youtube' |
|
|
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@staticmethod |
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def suitable(url): |
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return (re.match(YoutubeIE._VALID_URL, url) is not None) |
|
|
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def report_lang(self): |
|
"""Report attempt to set language.""" |
|
self.to_stdout(u'[youtube] Setting language') |
|
|
|
def report_login(self): |
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"""Report attempt to log in.""" |
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self.to_stdout(u'[youtube] Logging in') |
|
|
|
def report_age_confirmation(self): |
|
"""Report attempt to confirm age.""" |
|
self.to_stdout(u'[youtube] Confirming age') |
|
|
|
def report_webpage_download(self, video_id): |
|
"""Report attempt to download webpage.""" |
|
self.to_stdout(u'[youtube] %s: Downloading video webpage' % video_id) |
|
|
|
def report_information_extraction(self, video_id): |
|
"""Report attempt to extract video information.""" |
|
self.to_stdout(u'[youtube] %s: Extracting video information' % video_id) |
|
|
|
def report_video_url(self, video_id, video_real_url): |
|
"""Report extracted video URL.""" |
|
self.to_stdout(u'[youtube] %s: URL: %s' % (video_id, video_real_url)) |
|
|
|
def _real_initialize(self): |
|
if self._downloader is None: |
|
return |
|
|
|
username = None |
|
password = None |
|
downloader_params = self._downloader.params |
|
|
|
# Attempt to use provided username and password or .netrc data |
|
if downloader_params.get('username', None) is not None: |
|
username = downloader_params['username'] |
|
password = downloader_params['password'] |
|
elif downloader_params.get('usenetrc', False): |
|
try: |
|
info = netrc.netrc().authenticators(self._NETRC_MACHINE) |
|
if info is not None: |
|
username = info[0] |
|
password = info[2] |
|
else: |
|
raise netrc.NetrcParseError('No authenticators for %s' % self._NETRC_MACHINE) |
|
except (IOError, netrc.NetrcParseError), err: |
|
self.to_stderr(u'WARNING: parsing .netrc: %s' % str(err)) |
|
return |
|
|
|
# Set language |
|
request = urllib2.Request(self._LANG_URL, None, std_headers) |
|
try: |
|
self.report_lang() |
|
urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'WARNING: unable to set language: %s' % str(err)) |
|
return |
|
|
|
# No authentication to be performed |
|
if username is None: |
|
return |
|
|
|
# Log in |
|
login_form = { |
|
'current_form': 'loginForm', |
|
'next': '/', |
|
'action_login': 'Log In', |
|
'username': username, |
|
'password': password, |
|
} |
|
request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form), std_headers) |
|
try: |
|
self.report_login() |
|
login_results = urllib2.urlopen(request).read() |
|
if re.search(r'(?i)<form[^>]* name="loginForm"', login_results) is not None: |
|
self.to_stderr(u'WARNING: unable to log in: bad username or password') |
|
return |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'WARNING: unable to log in: %s' % str(err)) |
|
return |
|
|
|
# Confirm age |
|
age_form = { |
|
'next_url': '/', |
|
'action_confirm': 'Confirm', |
|
} |
|
request = urllib2.Request(self._AGE_URL, urllib.urlencode(age_form), std_headers) |
|
try: |
|
self.report_age_confirmation() |
|
age_results = urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'ERROR: unable to confirm age: %s' % str(err)) |
|
return |
|
|
|
def _real_extract(self, url): |
|
# Extract video id from URL |
|
mobj = re.match(self._VALID_URL, url) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: invalid URL: %s' % url) |
|
return [None] |
|
video_id = mobj.group(2) |
|
|
|
# Downloader parameters |
|
format_param = None |
|
if self._downloader is not None: |
|
params = self._downloader.params |
|
format_param = params.get('format', None) |
|
|
|
# Extension |
|
video_extension = { |
|
'17': '3gp', |
|
'18': 'mp4', |
|
'22': 'mp4', |
|
}.get(format_param, 'flv') |
|
|
|
# Normalize URL, including format |
|
normalized_url = 'http://www.youtube.com/watch?v=%s&gl=US&hl=en' % video_id |
|
if format_param is not None: |
|
normalized_url = '%s&fmt=%s' % (normalized_url, format_param) |
|
request = urllib2.Request(normalized_url, None, std_headers) |
|
try: |
|
self.report_webpage_download(video_id) |
|
video_webpage = urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'ERROR: unable to download video webpage: %s' % str(err)) |
|
return [None] |
|
self.report_information_extraction(video_id) |
|
|
|
# "t" param |
|
mobj = re.search(r', "t": "([^"]+)"', video_webpage) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: unable to extract "t" parameter') |
|
return [None] |
|
video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s' % (video_id, mobj.group(1)) |
|
if format_param is not None: |
|
video_real_url = '%s&fmt=%s' % (video_real_url, format_param) |
|
self.report_video_url(video_id, video_real_url) |
|
|
|
# uploader |
|
mobj = re.search(r"var watchUsername = '([^']+)';", video_webpage) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: unable to extract uploader nickname') |
|
return [None] |
|
video_uploader = mobj.group(1) |
|
|
|
# title |
|
mobj = re.search(r'(?im)<title>YouTube - ([^<]*)</title>', video_webpage) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: unable to extract video title') |
|
return [None] |
|
video_title = mobj.group(1).decode('utf-8') |
|
video_title = re.sub(ur'(?u)&(.+?);', lambda x: unichr(htmlentitydefs.name2codepoint[x.group(1)]), video_title) |
|
video_title = video_title.replace(os.sep, u'%') |
|
|
|
# simplified title |
|
simple_title = re.sub(ur'(?u)([^%s]+)' % simple_title_chars, ur'_', video_title) |
|
simple_title = simple_title.strip(ur'_') |
|
|
|
# Return information |
|
return [{ |
|
'id': video_id.decode('utf-8'), |
|
'url': video_real_url.decode('utf-8'), |
|
'uploader': video_uploader.decode('utf-8'), |
|
'title': video_title, |
|
'stitle': simple_title, |
|
'ext': video_extension.decode('utf-8'), |
|
}] |
|
|
|
class MetacafeIE(InfoExtractor): |
|
"""Information Extractor for metacafe.com.""" |
|
|
|
_VALID_URL = r'(?:http://)?(?:www\.)?metacafe\.com/watch/([^/]+)/([^/]+)/.*' |
|
_DISCLAIMER = 'http://www.metacafe.com/family_filter/' |
|
_youtube_ie = None |
|
|
|
def __init__(self, youtube_ie, downloader=None): |
|
InfoExtractor.__init__(self, downloader) |
|
self._youtube_ie = youtube_ie |
|
|
|
@staticmethod |
|
def suitable(url): |
|
return (re.match(MetacafeIE._VALID_URL, url) is not None) |
|
|
|
def report_disclaimer(self): |
|
"""Report disclaimer retrieval.""" |
|
self.to_stdout(u'[metacafe] Retrieving disclaimer') |
|
|
|
def report_age_confirmation(self): |
|
"""Report attempt to confirm age.""" |
|
self.to_stdout(u'[metacafe] Confirming age') |
|
|
|
def report_download_webpage(self, video_id): |
|
"""Report webpage download.""" |
|
self.to_stdout(u'[metacafe] %s: Downloading webpage' % video_id) |
|
|
|
def report_extraction(self, video_id): |
|
"""Report information extraction.""" |
|
self.to_stdout(u'[metacafe] %s: Extracting information' % video_id) |
|
|
|
def _real_initialize(self): |
|
# Retrieve disclaimer |
|
request = urllib2.Request(self._DISCLAIMER, None, std_headers) |
|
try: |
|
self.report_disclaimer() |
|
disclaimer = urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'ERROR: unable to retrieve disclaimer: %s' % str(err)) |
|
return |
|
|
|
# Confirm age |
|
disclaimer_form = { |
|
'filters': '0', |
|
'submit': "Continue - I'm over 18", |
|
} |
|
request = urllib2.Request('http://www.metacafe.com/', urllib.urlencode(disclaimer_form), std_headers) |
|
try: |
|
self.report_age_confirmation() |
|
disclaimer = urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'ERROR: unable to confirm age: %s' % str(err)) |
|
return |
|
|
|
def _real_extract(self, url): |
|
# Extract id and simplified title from URL |
|
mobj = re.match(self._VALID_URL, url) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: invalid URL: %s' % url) |
|
return [None] |
|
|
|
video_id = mobj.group(1) |
|
|
|
# Check if video comes from YouTube |
|
mobj2 = re.match(r'^yt-(.*)$', video_id) |
|
if mobj2 is not None: |
|
return self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % mobj2.group(1)) |
|
|
|
simple_title = mobj.group(2).decode('utf-8') |
|
video_extension = 'flv' |
|
|
|
# Retrieve video webpage to extract further information |
|
request = urllib2.Request('http://www.metacafe.com/watch/%s/' % video_id) |
|
try: |
|
self.report_download_webpage(video_id) |
|
webpage = urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'ERROR: unable retrieve video webpage: %s' % str(err)) |
|
return [None] |
|
|
|
# Extract URL, uploader and title from webpage |
|
self.report_extraction(video_id) |
|
mobj = re.search(r'(?m)"mediaURL":"(http.*?\.flv)"', webpage) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: unable to extract media URL') |
|
return [None] |
|
mediaURL = mobj.group(1).replace('\\', '') |
|
|
|
mobj = re.search(r'(?m)"gdaKey":"(.*?)"', webpage) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: unable to extract gdaKey') |
|
return [None] |
|
gdaKey = mobj.group(1) |
|
|
|
video_url = '%s?__gda__=%s' % (mediaURL, gdaKey) |
|
|
|
mobj = re.search(r'(?im)<title>(.*) - Video</title>', webpage) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: unable to extract title') |
|
return [None] |
|
video_title = mobj.group(1).decode('utf-8') |
|
|
|
mobj = re.search(r'(?m)<li id="ChnlUsr">.*?Submitter:<br />(.*?)</li>', webpage) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: unable to extract uploader nickname') |
|
return [None] |
|
video_uploader = re.sub(r'<.*?>', '', mobj.group(1)) |
|
|
|
# Return information |
|
return [{ |
|
'id': video_id.decode('utf-8'), |
|
'url': video_url.decode('utf-8'), |
|
'uploader': video_uploader.decode('utf-8'), |
|
'title': video_title, |
|
'stitle': simple_title, |
|
'ext': video_extension.decode('utf-8'), |
|
}] |
|
|
|
|
|
class YoutubeSearchIE(InfoExtractor): |
|
"""Information Extractor for YouTube search queries.""" |
|
_VALID_QUERY = r'ytsearch(\d+|all)?:[\s\S]+' |
|
_TEMPLATE_URL = 'http://www.youtube.com/results?search_query=%s&page=%s&gl=US&hl=en' |
|
_VIDEO_INDICATOR = r'href="/watch\?v=.+?"' |
|
_MORE_PAGES_INDICATOR = r'>Next</a>' |
|
_youtube_ie = None |
|
|
|
def __init__(self, youtube_ie, downloader=None): |
|
InfoExtractor.__init__(self, downloader) |
|
self._youtube_ie = youtube_ie |
|
|
|
@staticmethod |
|
def suitable(url): |
|
return (re.match(YoutubeSearchIE._VALID_QUERY, url) is not None) |
|
|
|
def report_download_page(self, query, pagenum): |
|
"""Report attempt to download playlist page with given number.""" |
|
self.to_stdout(u'[youtube] query "%s": Downloading page %s' % (query, pagenum)) |
|
|
|
def _real_initialize(self): |
|
self._youtube_ie.initialize() |
|
|
|
def _real_extract(self, query): |
|
mobj = re.match(self._VALID_QUERY, query) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: invalid search query "%s"' % query) |
|
return [None] |
|
|
|
prefix, query = query.split(':') |
|
prefix = prefix[8:] |
|
if prefix == '': |
|
return self._download_n_results(query, 1) |
|
elif prefix == 'all': |
|
return self._download_n_results(query, -1) |
|
else: |
|
try: |
|
n = int(prefix) |
|
if n <= 0: |
|
self.to_stderr(u'ERROR: invalid download number %s for query "%s"' % (n, query)) |
|
return [None] |
|
return self._download_n_results(query, n) |
|
except ValueError: # parsing prefix as int fails |
|
return self._download_n_results(query, 1) |
|
|
|
def _download_n_results(self, query, n): |
|
"""Downloads a specified number of results for a query""" |
|
|
|
video_ids = [] |
|
already_seen = set() |
|
pagenum = 1 |
|
|
|
while True: |
|
self.report_download_page(query, pagenum) |
|
result_url = self._TEMPLATE_URL % (urllib.quote_plus(query), pagenum) |
|
request = urllib2.Request(result_url, None, std_headers) |
|
try: |
|
page = urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'ERROR: unable to download webpage: %s' % str(err)) |
|
return [None] |
|
|
|
# Extract video identifiers |
|
for mobj in re.finditer(self._VIDEO_INDICATOR, page): |
|
video_id = page[mobj.span()[0]:mobj.span()[1]].split('=')[2][:-1] |
|
if video_id not in already_seen: |
|
video_ids.append(video_id) |
|
already_seen.add(video_id) |
|
if len(video_ids) == n: |
|
# Specified n videos reached |
|
information = [] |
|
for id in video_ids: |
|
information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)) |
|
return information |
|
|
|
if self._MORE_PAGES_INDICATOR not in page: |
|
information = [] |
|
for id in video_ids: |
|
information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)) |
|
return information |
|
|
|
pagenum = pagenum + 1 |
|
|
|
class YoutubePlaylistIE(InfoExtractor): |
|
"""Information Extractor for YouTube playlists.""" |
|
|
|
_VALID_URL = r'(?:http://)?(?:\w+\.)?youtube.com/view_play_list\?p=(.+)' |
|
_TEMPLATE_URL = 'http://www.youtube.com/view_play_list?p=%s&page=%s&gl=US&hl=en' |
|
_VIDEO_INDICATOR = r'/watch\?v=(.+?)&' |
|
_MORE_PAGES_INDICATOR = r'/view_play_list?p=%s&page=%s' |
|
_youtube_ie = None |
|
|
|
def __init__(self, youtube_ie, downloader=None): |
|
InfoExtractor.__init__(self, downloader) |
|
self._youtube_ie = youtube_ie |
|
|
|
@staticmethod |
|
def suitable(url): |
|
return (re.match(YoutubePlaylistIE._VALID_URL, url) is not None) |
|
|
|
def report_download_page(self, playlist_id, pagenum): |
|
"""Report attempt to download playlist page with given number.""" |
|
self.to_stdout(u'[youtube] PL %s: Downloading page #%s' % (playlist_id, pagenum)) |
|
|
|
def _real_initialize(self): |
|
self._youtube_ie.initialize() |
|
|
|
def _real_extract(self, url): |
|
# Extract playlist id |
|
mobj = re.match(self._VALID_URL, url) |
|
if mobj is None: |
|
self.to_stderr(u'ERROR: invalid url: %s' % url) |
|
return [None] |
|
|
|
# Download playlist pages |
|
playlist_id = mobj.group(1) |
|
video_ids = [] |
|
pagenum = 1 |
|
|
|
while True: |
|
self.report_download_page(playlist_id, pagenum) |
|
request = urllib2.Request(self._TEMPLATE_URL % (playlist_id, pagenum), None, std_headers) |
|
try: |
|
page = urllib2.urlopen(request).read() |
|
except (urllib2.URLError, httplib.HTTPException, socket.error), err: |
|
self.to_stderr(u'ERROR: unable to download webpage: %s' % str(err)) |
|
return [None] |
|
|
|
# Extract video identifiers |
|
ids_in_page = [] |
|
for mobj in re.finditer(self._VIDEO_INDICATOR, page): |
|
if mobj.group(1) not in ids_in_page: |
|
ids_in_page.append(mobj.group(1)) |
|
video_ids.extend(ids_in_page) |
|
|
|
if (self._MORE_PAGES_INDICATOR % (playlist_id, pagenum + 1)) not in page: |
|
break |
|
pagenum = pagenum + 1 |
|
|
|
information = [] |
|
for id in video_ids: |
|
information.extend(self._youtube_ie.extract('http://www.youtube.com/watch?v=%s' % id)) |
|
return information |
|
|
|
class PostProcessor(object): |
|
"""Post Processor class. |
|
|
|
PostProcessor objects can be added to downloaders with their |
|
add_post_processor() method. When the downloader has finished a |
|
successful download, it will take its internal chain of PostProcessors |
|
and start calling the run() method on each one of them, first with |
|
an initial argument and then with the returned value of the previous |
|
PostProcessor. |
|
|
|
The chain will be stopped if one of them ever returns None or the end |
|
of the chain is reached. |
|
|
|
PostProcessor objects follow a "mutual registration" process similar |
|
to InfoExtractor objects. |
|
""" |
|
|
|
_downloader = None |
|
|
|
def __init__(self, downloader=None): |
|
self._downloader = downloader |
|
|
|
def to_stdout(self, message): |
|
"""Print message to stdout if downloader is not in quiet mode.""" |
|
if self._downloader is None or not self._downloader.params.get('quiet', False): |
|
print message |
|
|
|
def to_stderr(self, message): |
|
"""Print message to stderr.""" |
|
print >>sys.stderr, message |
|
|
|
def set_downloader(self, downloader): |
|
"""Sets the downloader for this PP.""" |
|
self._downloader = downloader |
|
|
|
def run(self, information): |
|
"""Run the PostProcessor. |
|
|
|
The "information" argument is a dictionary like the ones |
|
returned by InfoExtractors. The only difference is that this |
|
one has an extra field called "filepath" that points to the |
|
downloaded file. |
|
|
|
When this method returns None, the postprocessing chain is |
|
stopped. However, this method may return an information |
|
dictionary that will be passed to the next postprocessing |
|
object in the chain. It can be the one it received after |
|
changing some fields. |
|
|
|
In addition, this method may raise a PostProcessingError |
|
exception that will be taken into account by the downloader |
|
it was called from. |
|
""" |
|
return information # by default, do nothing |
|
|
|
### MAIN PROGRAM ### |
|
if __name__ == '__main__': |
|
try: |
|
# Modules needed only when running the main program |
|
import getpass |
|
import optparse |
|
|
|
# General configuration |
|
urllib2.install_opener(urllib2.build_opener(urllib2.ProxyHandler())) |
|
urllib2.install_opener(urllib2.build_opener(urllib2.HTTPCookieProcessor())) |
|
socket.setdefaulttimeout(300) # 5 minutes should be enough (famous last words) |
|
|
|
# Parse command line |
|
parser = optparse.OptionParser( |
|
usage='Usage: %prog [options] url...', |
|
version='INTERNAL', |
|
conflict_handler='resolve', |
|
) |
|
parser.add_option('-h', '--help', |
|
action='help', help='print this help text and exit') |
|
parser.add_option('-v', '--version', |
|
action='version', help='print program version and exit') |
|
parser.add_option('-u', '--username', |
|
dest='username', metavar='UN', help='account username') |
|
parser.add_option('-p', '--password', |
|
dest='password', metavar='PW', help='account password') |
|
parser.add_option('-o', '--output', |
|
dest='outtmpl', metavar='TPL', help='output filename template') |
|
parser.add_option('-q', '--quiet', |
|
action='store_true', dest='quiet', help='activates quiet mode', default=False) |
|
parser.add_option('-s', '--simulate', |
|
action='store_true', dest='simulate', help='do not download video', default=False) |
|
parser.add_option('-t', '--title', |
|
action='store_true', dest='usetitle', help='use title in file name', default=False) |
|
parser.add_option('-l', '--literal', |
|
action='store_true', dest='useliteral', help='use literal title in file name', default=False) |
|
parser.add_option('-n', '--netrc', |
|
action='store_true', dest='usenetrc', help='use .netrc authentication data', default=False) |
|
parser.add_option('-g', '--get-url', |
|
action='store_true', dest='geturl', help='simulate, quiet but print URL', default=False) |
|
parser.add_option('-e', '--get-title', |
|
action='store_true', dest='gettitle', help='simulate, quiet but print title', default=False) |
|
parser.add_option('-f', '--format', |
|
dest='format', metavar='FMT', help='video format code') |
|
parser.add_option('-m', '--mobile-version', |
|
action='store_const', dest='format', help='alias for -f 17', const='17') |
|
parser.add_option('-d', '--high-def', |
|
action='store_const', dest='format', help='alias for -f 22', const='22') |
|
parser.add_option('-i', '--ignore-errors', |
|
action='store_true', dest='ignoreerrors', help='continue on download errors', default=False) |
|
parser.add_option('-r', '--rate-limit', |
|
dest='ratelimit', metavar='L', help='download rate limit (e.g. 50k or 44.6m)') |
|
parser.add_option('-a', '--batch-file', |
|
dest='batchfile', metavar='F', help='file containing URLs to download') |
|
parser.add_option('-w', '--no-overwrites', |
|
action='store_true', dest='nooverwrites', help='do not overwrite files', default=False) |
|
(opts, args) = parser.parse_args() |
|
|
|
# Batch file verification |
|
batchurls = [] |
|
if opts.batchfile is not None: |
|
try: |
|
batchurls = [line.strip() for line in open(opts.batchfile, 'r')] |
|
except IOError: |
|
sys.exit(u'ERROR: batch file could not be read') |
|
all_urls = batchurls + args |
|
|
|
# Conflicting, missing and erroneous options |
|
if len(all_urls) < 1: |
|
sys.exit(u'ERROR: you must provide at least one URL') |
|
if opts.usenetrc and (opts.username is not None or opts.password is not None): |
|
sys.exit(u'ERROR: using .netrc conflicts with giving username/password') |
|
if opts.password is not None and opts.username is None: |
|
sys.exit(u'ERROR: account username missing') |
|
if opts.outtmpl is not None and (opts.useliteral or opts.usetitle): |
|
sys.exit(u'ERROR: using output template conflicts with using title or literal title') |
|
if opts.usetitle and opts.useliteral: |
|
sys.exit(u'ERROR: using title conflicts with using literal title') |
|
if opts.username is not None and opts.password is None: |
|
opts.password = getpass.getpass(u'Type account password and press return:') |
|
if opts.ratelimit is not None: |
|
numeric_limit = FileDownloader.parse_bytes(opts.ratelimit) |
|
if numeric_limit is None: |
|
sys.exit(u'ERROR: invalid rate limit specified') |
|
opts.ratelimit = numeric_limit |
|
|
|
# Information extractors |
|
youtube_ie = YoutubeIE() |
|
metacafe_ie = MetacafeIE(youtube_ie) |
|
youtube_pl_ie = YoutubePlaylistIE(youtube_ie) |
|
youtube_search_ie = YoutubeSearchIE(youtube_ie) |
|
|
|
# File downloader |
|
charset = locale.getdefaultlocale()[1] |
|
if charset is None: |
|
charset = 'ascii' |
|
fd = FileDownloader({ |
|
'usenetrc': opts.usenetrc, |
|
'username': opts.username, |
|
'password': opts.password, |
|
'quiet': (opts.quiet or opts.geturl or opts.gettitle), |
|
'forceurl': opts.geturl, |
|
'forcetitle': opts.gettitle, |
|
'simulate': (opts.simulate or opts.geturl or opts.gettitle), |
|
'format': opts.format, |
|
'outtmpl': ((opts.outtmpl is not None and opts.outtmpl.decode(charset)) |
|
or (opts.usetitle and u'%(stitle)s-%(id)s.%(ext)s') |
|
or (opts.useliteral and u'%(title)s-%(id)s.%(ext)s') |
|
or u'%(id)s.%(ext)s'), |
|
'ignoreerrors': opts.ignoreerrors, |
|
'ratelimit': opts.ratelimit, |
|
'nooverwrites': opts.nooverwrites, |
|
}) |
|
fd.add_info_extractor(youtube_search_ie) |
|
fd.add_info_extractor(youtube_pl_ie) |
|
fd.add_info_extractor(metacafe_ie) |
|
fd.add_info_extractor(youtube_ie) |
|
retcode = fd.download(all_urls) |
|
sys.exit(retcode) |
|
|
|
except DownloadError: |
|
sys.exit(1) |
|
except SameFileError: |
|
sys.exit(u'ERROR: fixed output name but more than one file to download') |
|
except KeyboardInterrupt: |
|
sys.exit(u'\nERROR: Interrupted by user')
|
|
|