X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=youtube-dl;h=e3eb8774caa258ddbaa51323938fbd36c4fc170d;hb=fd50bf623c3b3696ade7b8e1e5f4e0c283eabaaf;hp=8764acda0592df1c628b0a7d4dceeaa59d2b7394;hpb=a825f0ca83e1bdb12fc6c88377defdfa28156f78;p=youtube-dl diff --git a/youtube-dl b/youtube-dl index 8764acda0..e3eb8774c 100755 --- a/youtube-dl +++ b/youtube-dl @@ -1,1060 +1,89 @@ #!/usr/bin/env python -# -*- coding: utf-8 -*- -# Author: Ricardo Garcia Gonzalez -# Author: Danny Colligan -# License: Public domain code -import htmlentitydefs -import httplib -import locale -import math -import netrc -import os -import os.path -import re -import socket -import string -import sys -import time -import urllib -import urllib2 -std_headers = { - 'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.8) Gecko/2009032609 Firefox/3.0.8', - 'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7', - 'Accept': 'text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5', - 'Accept-Language': 'en-us,en;q=0.5', -} - -simple_title_chars = string.ascii_letters.decode('ascii') + string.digits.decode('ascii') - -class DownloadError(Exception): - """Download Error exception. - - This exception may be thrown by FileDownloader objects if they are not - configured to continue on errors. They will contain the appropriate - error message. - """ - pass - -class SameFileError(Exception): - """Same File exception. - - This exception will be thrown by FileDownloader objects if they detect - multiple files would have to be downloaded to the same file on disk. - """ - pass - -class PostProcessingError(Exception): - """Post Processing exception. - - This exception may be raised by PostProcessor's .run() method to - indicate an error in the postprocessing task. - """ - pass - -class FileDownloader(object): - """File Downloader class. - - File downloader objects are the ones responsible of downloading the - actual video file and writing it to disk if the user has requested - it, among some other tasks. In most cases there should be one per - program. As, given a video URL, the downloader doesn't know how to - extract all the needed information, task that InfoExtractors do, it - has to pass the URL to one of them. - - For this, file downloader objects have a method that allows - InfoExtractors to be registered in a given order. When it is passed - a URL, the file downloader handles it to the first InfoExtractor it - finds that reports being able to handle it. The InfoExtractor extracts - all the information about the video or videos the URL refers to, and - asks the FileDownloader to process the video information, possibly - downloading the video. - - File downloaders accept a lot of parameters. In order not to saturate - the object constructor with arguments, it receives a dictionary of - options instead. These options are available through the params - attribute for the InfoExtractors to use. The FileDownloader also - registers itself as the downloader in charge for the InfoExtractors - that are added to it, so this is a "mutual registration". - - Available options: - - username: Username for authentication purposes. - password: Password for authentication purposes. - usenetrc: Use netrc for authentication instead. - quiet: Do not print messages to stdout. - forceurl: Force printing final URL. - forcetitle: Force printing title. - simulate: Do not download the video files. - format: Video format code. - outtmpl: Template for output names. - ignoreerrors: Do not stop on download errors. - ratelimit: Download speed limit, in bytes/sec. - nooverwrites: Prevent overwriting files. - """ - - params = None - _ies = [] - _pps = [] - _download_retcode = None - - def __init__(self, params): - """Create a FileDownloader object with the given options.""" - self._ies = [] - self._pps = [] - self._download_retcode = 0 - self.params = params - - @staticmethod - def pmkdir(filename): - """Create directory components in filename. Similar to Unix "mkdir -p".""" - components = filename.split(os.sep) - aggregate = [os.sep.join(components[0:x]) for x in xrange(1, len(components))] - aggregate = ['%s%s' % (x, os.sep) for x in aggregate] # Finish names with separator - for dir in aggregate: - if not os.path.exists(dir): - os.mkdir(dir) - - @staticmethod - def format_bytes(bytes): - if bytes is None: - return 'N/A' - if bytes == 0: - exponent = 0 - else: - exponent = long(math.log(float(bytes), 1024.0)) - suffix = 'bkMGTPEZY'[exponent] - converted = float(bytes) / float(1024**exponent) - return '%.2f%s' % (converted, suffix) - - @staticmethod - def calc_percent(byte_counter, data_len): - if data_len is None: - return '---.-%' - return '%6s' % ('%3.1f%%' % (float(byte_counter) / float(data_len) * 100.0)) - - @staticmethod - def calc_eta(start, now, total, current): - if total is None: - return '--:--' - dif = now - start - if current == 0 or dif < 0.001: # One millisecond - return '--:--' - rate = float(current) / dif - eta = long((float(total) - float(current)) / rate) - (eta_mins, eta_secs) = divmod(eta, 60) - if eta_mins > 99: - return '--:--' - return '%02d:%02d' % (eta_mins, eta_secs) - - @staticmethod - def calc_speed(start, now, bytes): - dif = now - start - if bytes == 0 or dif < 0.001: # One millisecond - return '%10s' % '---b/s' - return '%10s' % ('%s/s' % FileDownloader.format_bytes(float(bytes) / dif)) - - @staticmethod - def best_block_size(elapsed_time, bytes): - new_min = max(bytes / 2.0, 1.0) - new_max = min(max(bytes * 2.0, 1.0), 4194304) # Do not surpass 4 MB - if elapsed_time < 0.001: - return int(new_max) - rate = bytes / elapsed_time - if rate > new_max: - return int(new_max) - if rate < new_min: - return int(new_min) - return int(rate) - - @staticmethod - def parse_bytes(bytestr): - """Parse a string indicating a byte quantity into a long integer.""" - matchobj = re.match(r'(?i)^(\d+(?:\.\d+)?)([kMGTPEZY]?)$', bytestr) - if matchobj is None: - return None - number = float(matchobj.group(1)) - multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower()) - return long(round(number * multiplier)) - - def add_info_extractor(self, ie): - """Add an InfoExtractor object to the end of the list.""" - self._ies.append(ie) - ie.set_downloader(self) - - def add_post_processor(self, pp): - """Add a PostProcessor object to the end of the chain.""" - self._pps.append(pp) - pp.set_downloader(self) - - def to_stdout(self, message, skip_eol=False): - """Print message to stdout if not in quiet mode.""" - if not self.params.get('quiet', False): - print (u'%s%s' % (message, [u'\n', u''][skip_eol])).encode(locale.getpreferredencoding()), - sys.stdout.flush() - - def to_stderr(self, message): - """Print message to stderr.""" - print >>sys.stderr, message - - def fixed_template(self): - """Checks if the output template is fixed.""" - return (re.search(ur'(?u)%\(.+?\)s', self.params['outtmpl']) is None) - - def trouble(self, message=None): - """Determine action to take when a download problem appears. - - Depending on if the downloader has been configured to ignore - download errors or not, this method may throw an exception or - not when errors are found, after printing the message. - """ - if message is not None: - self.to_stderr(message) - if not self.params.get('ignoreerrors', False): - raise DownloadError(message) - self._download_retcode = 1 - - def slow_down(self, start_time, byte_counter): - """Sleep if the download speed is over the rate limit.""" - rate_limit = self.params.get('ratelimit', None) - if rate_limit is None or byte_counter == 0: - return - now = time.time() - elapsed = now - start_time - if elapsed <= 0.0: - return - speed = float(byte_counter) / elapsed - if speed > rate_limit: - time.sleep((byte_counter - rate_limit * (now - start_time)) / rate_limit) - - def report_destination(self, filename): - """Report destination filename.""" - self.to_stdout(u'[download] Destination: %s' % filename) - - def report_progress(self, percent_str, data_len_str, speed_str, eta_str): - """Report download progress.""" - self.to_stdout(u'\r[download] %s of %s at %s ETA %s' % - (percent_str, data_len_str, speed_str, eta_str), skip_eol=True) - - def report_finish(self): - """Report download finished.""" - self.to_stdout(u'') - - def process_info(self, info_dict): - """Process a single dictionary returned by an InfoExtractor.""" - # Forced printings - if self.params.get('forcetitle', False): - print info_dict['title'].encode(locale.getpreferredencoding()) - if self.params.get('forceurl', False): - print info_dict['url'].encode(locale.getpreferredencoding()) - - # Do nothing else if in simulate mode - if self.params.get('simulate', False): - return - - try: - filename = self.params['outtmpl'] % info_dict - self.report_destination(filename) - except (ValueError, KeyError), err: - self.trouble('ERROR: invalid output template or system charset: %s' % str(err)) - if self.params['nooverwrites'] and os.path.exists(filename): - self.to_stderr('WARNING: file exists: %s; skipping' % filename) - return - try: - self.pmkdir(filename) - except (OSError, IOError), err: - self.trouble('ERROR: unable to create directories: %s' % str(err)) - return - try: - outstream = open(filename, 'wb') - except (OSError, IOError), err: - self.trouble('ERROR: unable to open for writing: %s' % str(err)) - return - try: - self._do_download(outstream, info_dict['url']) - outstream.close() - except (OSError, IOError), err: - self.trouble('ERROR: unable to write video data: %s' % str(err)) - return - except (urllib2.URLError, httplib.HTTPException, socket.error), err: - self.trouble('ERROR: unable to download video data: %s' % str(err)) - return - try: - self.post_process(filename, info_dict) - except (PostProcessingError), err: - self.trouble('ERROR: postprocessing: %s' % str(err)) - return - - 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 - - # Suitable InfoExtractor found - suitable_found = True - - # Extract information from URL and process it - ie.extract(url) - - # Suitable InfoExtractor had been found; go to next URL - break - - if not suitable_found: - self.trouble('ERROR: no suitable InfoExtractor: %s' % url) - - return self._download_retcode - - def post_process(self, filename, ie_info): - """Run the postprocessing chain on the given file.""" - info = dict(ie_info) - info['filepath'] = filename - for pp in self._pps: - info = pp.run(info) - if info is None: - break - - def _do_download(self, stream, url): - request = urllib2.Request(url, None, std_headers) - data = urllib2.urlopen(request) - data_len = data.info().get('Content-length', None) - data_len_str = self.format_bytes(data_len) - byte_counter = 0 - block_size = 1024 - start = time.time() - while True: - # Progress message - percent_str = self.calc_percent(byte_counter, data_len) - eta_str = self.calc_eta(start, time.time(), data_len, byte_counter) - speed_str = self.calc_speed(start, time.time(), byte_counter) - self.report_progress(percent_str, data_len_str, speed_str, eta_str) - - # Download and write - before = time.time() - data_block = data.read(block_size) - after = time.time() - data_block_len = len(data_block) - if data_block_len == 0: - break - byte_counter += data_block_len - stream.write(data_block) - block_size = self.best_block_size(after - before, data_block_len) - - # Apply rate limit - self.slow_down(start, byte_counter) - - self.report_finish() - if data_len is not None and str(byte_counter) != data_len: - raise ValueError('Content too short: %s/%s bytes' % (byte_counter, data_len)) - -class InfoExtractor(object): - """Information Extractor class. - - Information extractors are the classes that, given a URL, extract - information from the video (or videos) the URL refers to. This - information includes the real video URL, the video title and simplified - title, author and others. The information is stored in a dictionary - which is then passed to the FileDownloader. The FileDownloader - processes this information possibly downloading the video to the file - system, among other possible outcomes. The dictionaries must include - the following fields: - - id: Video identifier. - url: Final video URL. - uploader: Nickname of the video uploader. - title: Literal title. - stitle: Simplified title. - ext: Video filename extension. - - Subclasses of this one should re-define the _real_initialize() and - _real_extract() methods, as well as the suitable() static method. - Probably, they should also be instantiated and added to the main - downloader. - """ - - _ready = False - _downloader = None - - def __init__(self, downloader=None): - """Constructor. Receives an optional downloader.""" - self._ready = False - self.set_downloader(downloader) - - @staticmethod - def suitable(url): - """Receives a URL and returns True if suitable for this IE.""" - return False - - def initialize(self): - """Initializes an instance (authentication, etc).""" - if not self._ready: - self._real_initialize() - self._ready = True - - def extract(self, url): - """Extracts URL information and returns it in list of dicts.""" - self.initialize() - return self._real_extract(url) - - def set_downloader(self, downloader): - """Sets the downloader for this IE.""" - self._downloader = downloader - - def _real_initialize(self): - """Real initialization process. Redefine in subclasses.""" - pass - - def _real_extract(self, url): - """Real extraction process. Redefine in subclasses.""" - pass - -class YoutubeIE(InfoExtractor): - """Information extractor for youtube.com.""" - - _VALID_URL = r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:(?:v/)|(?:(?:watch(?:\.php)?)?\?(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$' - _LANG_URL = r'http://uk.youtube.com/?hl=en&persist_hl=1&gl=US&persist_gl=1&opt_out_ackd=1' - _LOGIN_URL = 'http://www.youtube.com/signup?next=/&gl=US&hl=en' - _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/&gl=US&hl=en' - _NETRC_MACHINE = 'youtube' - - @staticmethod - def suitable(url): - return (re.match(YoutubeIE._VALID_URL, url) is not None) - - @staticmethod - def htmlentity_transform(matchobj): - """Transforms an HTML entity to a Unicode character.""" - entity = matchobj.group(1) - - # Known non-numeric HTML entity - if entity in htmlentitydefs.name2codepoint: - return unichr(htmlentitydefs.name2codepoint[entity]) - - # Unicode character - mobj = re.match(ur'(?u)#(x?\d+)', entity) - if mobj is not None: - numstr = mobj.group(1) - if numstr.startswith(u'x'): - base = 16 - numstr = u'0%s' % numstr - else: - base = 10 - return unichr(long(numstr, base)) - - # Unknown entity in name, return its literal representation - return (u'&%s;' % entity) - - def report_lang(self): - """Report attempt to set language.""" - self._downloader.to_stdout(u'[youtube] Setting language') - - def report_login(self): - """Report attempt to log in.""" - self._downloader.to_stdout(u'[youtube] Logging in') - - def report_age_confirmation(self): - """Report attempt to confirm age.""" - self._downloader.to_stdout(u'[youtube] Confirming age') - - def report_webpage_download(self, video_id): - """Report attempt to download webpage.""" - self._downloader.to_stdout(u'[youtube] %s: Downloading video webpage' % video_id) - - def report_information_extraction(self, video_id): - """Report attempt to extract video information.""" - self._downloader.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._downloader.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._downloader.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._downloader.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)