X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=youtube-dl;h=fe8a591606a38c243cb1214372d90b505f41e207;hb=bd3cdf6dc42d48d010fad03d8d601b3920c7a8a7;hp=7690898b2e623cb115554524dc52ba1318e4169a;hpb=65cd34c5d735f968b03c6e618db4e177ed80f1ac;p=youtube-dl.git diff --git a/youtube-dl b/youtube-dl index 7690898b2..fe8a59160 100755 --- a/youtube-dl +++ b/youtube-dl @@ -1,9 +1,12 @@ #!/usr/bin/env python # -*- coding: utf-8 -*- # Author: Ricardo Garcia Gonzalez +# Author: Danny Colligan +# Author: Benjamin Johnson # License: Public domain code import htmlentitydefs import httplib +import locale import math import netrc import os @@ -11,13 +14,20 @@ import os.path import re import socket import string +import subprocess import sys import time import urllib import urllib2 -std_headers = { - 'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008070208 Firefox/3.0.1', +# parse_qs was moved from the cgi module to the urlparse module recently. +try: + from urlparse import parse_qs +except ImportError: + from cgi import parse_qs + +std_headers = { + 'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6', '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', @@ -25,6 +35,75 @@ std_headers = { simple_title_chars = string.ascii_letters.decode('ascii') + string.digits.decode('ascii') +def preferredencoding(): + """Get preferred encoding. + + Returns the best encoding scheme for the system, based on + locale.getpreferredencoding() and some further tweaks. + """ + def yield_preferredencoding(): + try: + pref = locale.getpreferredencoding() + u'TEST'.encode(pref) + except: + pref = 'UTF-8' + while True: + yield pref + return yield_preferredencoding().next() + +def htmlentity_transform(matchobj): + """Transforms an HTML entity to a Unicode character. + + This function receives a match object and is intended to be used with + the re.sub() function. + """ + 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 sanitize_title(utitle): + """Sanitizes a video title so it could be used as part of a filename.""" + utitle = re.sub(ur'(?u)&(.+?);', htmlentity_transform, utitle) + return utitle.replace(unicode(os.sep), u'%') + +def sanitize_open(filename, open_mode): + """Try to open the given filename, and slightly tweak it if this fails. + + Attempts to open the given filename. If this fails, it tries to change + the filename slightly, step by step, until it's either able to open it + or it fails and raises a final exception, like the standard open() + function. + + It returns the tuple (stream, definitive_file_name). + """ + try: + stream = open(filename, open_mode) + return (stream, filename) + except (IOError, OSError), err: + # In case of error, try to remove win32 forbidden chars + filename = re.sub(ur'[<>:"\|\?\*]', u'#', filename) + + # An exception here should be caught in the caller + stream = open(filename, open_mode) + return (stream, filename) + + class DownloadError(Exception): """Download Error exception. @@ -50,6 +129,29 @@ class PostProcessingError(Exception): """ pass +class UnavailableFormatError(Exception): + """Unavailable Format exception. + + This exception will be thrown when a video is requested + in a format that is not available for that video. + """ + pass + +class ContentTooShortError(Exception): + """Content Too Short exception. + + This exception may be raised by FileDownloader objects when a file they + download is too small for what the server announced first, indicating + the connection was probably interrupted. + """ + # Both in bytes + downloaded = None + expected = None + + def __init__(self, downloaded, expected): + self.downloaded = downloaded + self.expected = expected + class FileDownloader(object): """File Downloader class. @@ -63,16 +165,17 @@ class FileDownloader(object): 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 returns - all the information to the FileDownloader and the latter downloads the - file or does whatever it's instructed to do. + 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 get_params() - method 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". + 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: @@ -87,17 +190,21 @@ class FileDownloader(object): outtmpl: Template for output names. ignoreerrors: Do not stop on download errors. ratelimit: Download speed limit, in bytes/sec. + nooverwrites: Prevent overwriting files. + continuedl: Try to continue downloads if possible. """ - _params = None + params = None _ies = [] _pps = [] + _download_retcode = None def __init__(self, params): """Create a FileDownloader object with the given options.""" self._ies = [] self._pps = [] - self.set_params(params) + self._download_retcode = 0 + self.params = params @staticmethod def pmkdir(filename): @@ -113,10 +220,12 @@ class FileDownloader(object): def format_bytes(bytes): if bytes is None: return 'N/A' - if bytes == 0: + if type(bytes) is str: + bytes = float(bytes) + if bytes == 0.0: exponent = 0 else: - exponent = long(math.log(float(bytes), 1024.0)) + exponent = long(math.log(bytes, 1024.0)) suffix = 'bkMGTPEZY'[exponent] converted = float(bytes) / float(1024**exponent) return '%.2f%s' % (converted, suffix) @@ -141,7 +250,7 @@ class FileDownloader(object): return '--:--' return '%02d:%02d' % (eta_mins, eta_secs) - @staticmethod + @staticmethod def calc_speed(start, now, bytes): dif = now - start if bytes == 0 or dif < 0.001: # One millisecond @@ -153,13 +262,13 @@ class FileDownloader(object): 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) + return long(new_max) rate = bytes / elapsed_time if rate > new_max: - return int(new_max) + return long(new_max) if rate < new_min: - return int(new_min) - return int(rate) + return long(new_min) + return long(rate) @staticmethod def parse_bytes(bytestr): @@ -171,15 +280,15 @@ class FileDownloader(object): multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower()) return long(round(number * multiplier)) - def set_params(self, params): - """Sets parameters.""" - if type(params) != dict: - raise ValueError('params: dictionary expected') - self._params = params - - def get_params(self): - """Get parameters.""" - return self._params + @staticmethod + def verify_url(url): + """Verify a URL is valid and data could be downloaded. Return real data URL.""" + request = urllib2.Request(url, None, std_headers) + data = urllib2.urlopen(request) + data.read(1) + url = data.geturl() + data.close() + return url def add_info_extractor(self, ie): """Add an InfoExtractor object to the end of the list.""" @@ -193,36 +302,34 @@ class FileDownloader(object): 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]), + if not self.params.get('quiet', False): + print (u'%s%s' % (message, [u'\n', u''][skip_eol])).encode(preferredencoding()), sys.stdout.flush() def to_stderr(self, message): """Print message to stderr.""" - print >>sys.stderr, message + print >>sys.stderr, message.encode(preferredencoding()) def fixed_template(self): """Checks if the output template is fixed.""" - return (re.search(ur'(?u)%\(.+?\)s', self._params['outtmpl']) is None) + 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 it - doesn't raise, it returns an error code suitable to be returned - later as a program exit code to indicate error. + 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): + if not self.params.get('ignoreerrors', False): raise DownloadError(message) - return 1 + 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) + rate_limit = self.params.get('ratelimit', None) if rate_limit is None or byte_counter == 0: return now = time.time() @@ -241,79 +348,101 @@ class FileDownloader(object): """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_resuming_byte(self, resume_len): + """Report attemtp to resume at given byte.""" + self.to_stdout(u'[download] Resuming download at byte %s' % resume_len) + + def report_file_already_downloaded(self, file_name): + """Report file has already been fully downloaded.""" + self.to_stdout(u'[download] %s has already been downloaded' % file_name) + + def report_unable_to_resume(self): + """Report it was impossible to resume download.""" + self.to_stdout(u'[download] Unable to resume') 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.""" + # Do nothing else if in simulate mode + if self.params.get('simulate', False): + # Verify URL if it's an HTTP one + if info_dict['url'].startswith('http'): + try: + info_dict['url'] = self.verify_url(info_dict['url'].encode('utf-8')).decode('utf-8') + except (OSError, IOError, urllib2.URLError, httplib.HTTPException, socket.error), err: + raise UnavailableFormatError + + # Forced printings + if self.params.get('forcetitle', False): + print info_dict['title'].encode(preferredencoding(), 'xmlcharrefreplace') + if self.params.get('forceurl', False): + print info_dict['url'].encode(preferredencoding(), 'xmlcharrefreplace') + + return + + try: + template_dict = dict(info_dict) + template_dict['epoch'] = unicode(long(time.time())) + filename = self.params['outtmpl'] % template_dict + except (ValueError, KeyError), err: + self.trouble('ERROR: invalid output template or system charset: %s' % str(err)) + if self.params.get('nooverwrites', False) and os.path.exists(filename): + self.to_stderr(u'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: + success = self._do_download(filename, info_dict['url'].encode('utf-8')) + except (OSError, IOError), err: + raise UnavailableFormatError + except (urllib2.URLError, httplib.HTTPException, socket.error), err: + self.trouble('ERROR: unable to download video data: %s' % str(err)) + return + except (ContentTooShortError, ), err: + self.trouble('ERROR: 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), err: + self.trouble('ERROR: postprocessing: %s' % str(err)) + return + def download(self, url_list): """Download a given list of URLs.""" - retcode = 0 if len(url_list) > 1 and self.fixed_template(): - raise SameFileError(self._params['outtmpl']) + 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 - all_results = ie.extract(url) - results = [x for x in all_results if x is not None] - if len(results) != len(all_results): - retcode = self.trouble() - - if len(results) > 1 and self.fixed_template(): - raise SameFileError(self._params['outtmpl']) - - for result in results: - # Forced printings - if self._params.get('forcetitle', False): - print result['title'] - if self._params.get('forceurl', False): - print result['url'] - - # Do nothing else if in simulate mode - if self._params.get('simulate', False): - continue - try: - filename = self._params['outtmpl'] % result - self.report_destination(filename) - except (ValueError, KeyError), err: - retcode = self.trouble('ERROR: invalid output template or system charset: %s' % str(err)) - continue - try: - self.pmkdir(filename) - except (OSError, IOError), err: - retcode = self.trouble('ERROR: unable to create directories: %s' % str(err)) - continue - try: - outstream = open(filename, 'wb') - except (OSError, IOError), err: - retcode = self.trouble('ERROR: unable to open for writing: %s' % str(err)) - continue - try: - self._do_download(outstream, result['url']) - outstream.close() - except (OSError, IOError), err: - retcode = self.trouble('ERROR: unable to write video data: %s' % str(err)) - continue - except (urllib2.URLError, httplib.HTTPException, socket.error), err: - retcode = self.trouble('ERROR: unable to download video data: %s' % str(err)) - continue - try: - self.post_process(filename, result) - except (PostProcessingError), err: - retcode = self.trouble('ERROR: postprocessing: %s' % str(err)) - continue + # Extract information from URL and process it + ie.extract(url) + # Suitable InfoExtractor had been found; go to next URL break + if not suitable_found: - retcode = self.trouble('ERROR: no suitable InfoExtractor: %s' % url) + self.trouble('ERROR: no suitable InfoExtractor: %s' % url) - return retcode + return self._download_retcode def post_process(self, filename, ie_info): """Run the postprocessing chain on the given file.""" @@ -324,21 +453,79 @@ class FileDownloader(object): if info is None: break - def _do_download(self, stream, url): + def _download_with_rtmpdump(self, filename, url): + self.report_destination(filename) + + # Check for rtmpdump first + try: + subprocess.call(['rtmpdump', '-h'], stdout=(file(os.path.devnull, 'w')), stderr=subprocess.STDOUT) + except (OSError, IOError): + self.trouble(u'ERROR: 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', filename] + retval = subprocess.call(basic_args + [[], ['-e', '-k', '1']][self.params.get('continuedl', False)]) + while retval == 2 or retval == 1: + self.to_stdout(u'\r[rtmpdump] %s bytes' % os.path.getsize(filename), skip_eol=True) + time.sleep(2.0) # This seems to be needed + retval = subprocess.call(basic_args + ['-e'] + [[], ['-k', '1']][retval == 1]) + if retval == 0: + self.to_stdout(u'\r[rtmpdump] %s bytes' % os.path.getsize(filename)) + return True + else: + self.trouble('ERROR: rtmpdump exited with code %d' % retval) + return False + + def _do_download(self, filename, url): + # Attempt to download using rtmpdump + if url.startswith('rtmp'): + return self._download_with_rtmpdump(filename, url) + + stream = None + open_mode = 'wb' + basic_request = urllib2.Request(url, None, std_headers) request = urllib2.Request(url, None, std_headers) - data = urllib2.urlopen(request) + + # Establish possible resume length + if os.path.isfile(filename): + resume_len = os.path.getsize(filename) + else: + resume_len = 0 + + # Request parameters in case of being able to resume + if self.params.get('continuedl', False) and resume_len != 0: + self.report_resuming_byte(resume_len) + request.add_header('Range','bytes=%d-' % resume_len) + open_mode = 'ab' + + # Establish connection + try: + data = urllib2.urlopen(request) + except (urllib2.HTTPError, ), err: + if err.code != 416: # 416 is 'Requested range not satisfiable' + raise + # Unable to resume + data = urllib2.urlopen(basic_request) + content_length = data.info()['Content-Length'] + + if content_length is not None and long(content_length) == resume_len: + # Because the file had already been fully downloaded + self.report_file_already_downloaded(filename) + return True + else: + # Because the server didn't let us + self.report_unable_to_resume() + open_mode = 'wb' + 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) @@ -347,15 +534,31 @@ class FileDownloader(object): if data_block_len == 0: break byte_counter += data_block_len + + # Open file just in time + if stream is None: + try: + (stream, filename) = sanitize_open(filename, open_mode) + self.report_destination(filename) + except (OSError, IOError), err: + self.trouble('ERROR: unable to open for writing: %s' % str(err)) + return False stream.write(data_block) block_size = self.best_block_size(after - before, data_block_len) + # 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) + # 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)) + raise ContentTooShortError(byte_counter, long(data_len)) + return True class InfoExtractor(object): """Information Extractor class. @@ -363,9 +566,10 @@ class InfoExtractor(object): 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. It is returned in a list of dictionaries when - calling its extract() method. It is a list because a URL can refer to - more than one video (think of playlists). The dictionaries must include + 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. @@ -409,15 +613,6 @@ class InfoExtractor(object): """Sets the downloader for this IE.""" 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.get_params().get('quiet', False): - print message - - def to_stderr(self, message): - """Print message to stderr.""" - print >>sys.stderr, message - def _real_initialize(self): """Real initialization process. Redefine in subclasses.""" pass @@ -429,42 +624,59 @@ class InfoExtractor(object): class YoutubeIE(InfoExtractor): """Information extractor for youtube.com.""" - _VALID_URL = r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:(?:v/)|(?:(?:watch(?:\.php)?)?\?(?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$' - _LOGIN_URL = 'http://www.youtube.com/login?next=/' - _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/' + _VALID_URL = r'^((?:http://)?(?:\w+\.)?youtube\.com/(?:(?:v/)|(?:(?:watch(?:\.php)?)?[\?#](?:.+&)?v=)))?([0-9A-Za-z_-]+)(?(1).+)?$' + _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' + _available_formats = ['37', '22', '35', '18', '5', '17', '13', None] # listed in order of priority for -b flag + _video_extensions = { + '13': '3gp', + '17': 'mp4', + '18': 'mp4', + '22': 'mp4', + '37': 'mp4', + } @staticmethod def suitable(url): return (re.match(YoutubeIE._VALID_URL, url) is not None) + 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.to_stdout(u'[youtube] Logging in') + self._downloader.to_stdout(u'[youtube] Logging in') def report_age_confirmation(self): """Report attempt to confirm age.""" - self.to_stdout(u'[youtube] Confirming age') + self._downloader.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_video_info_webpage_download(self, video_id): + """Report attempt to download video info webpage.""" + self._downloader.to_stdout(u'[youtube] %s: Downloading video info 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) + self._downloader.to_stdout(u'[youtube] %s: Extracting video information' % video_id) - def report_video_url(self, video_id, video_real_url): + def report_unavailable_format(self, video_id, format): """Report extracted video URL.""" - self.to_stdout(u'[youtube] %s: URL: %s' % (video_id, video_real_url)) - + self._downloader.to_stdout(u'[youtube] %s: Format %s not available' % (video_id, format)) + + def report_rtmp_download(self): + """Indicate the download will use the RTMP protocol.""" + self._downloader.to_stdout(u'[youtube] RTMP download detected') + def _real_initialize(self): if self._downloader is None: return username = None password = None - downloader_params = self._downloader.get_params() + downloader_params = self._downloader.params # Attempt to use provided username and password or .netrc data if downloader_params.get('username', None) is not None: @@ -479,9 +691,18 @@ class YoutubeIE(InfoExtractor): 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)) + 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 @@ -499,10 +720,10 @@ class YoutubeIE(InfoExtractor): self.report_login() login_results = urllib2.urlopen(request).read() if re.search(r'(?i)