X-Git-Url: http://git.cielonegro.org/gitweb.cgi?a=blobdiff_plain;f=youtube-dl;h=e3dafad690587997360da9c14893106c4605fba9;hb=fade05990c9e4edbf07c91a6723a0e302e82114d;hp=4acdecd795477a143b1acb412a941ae2c5a93ec2;hpb=42bcd27d3bc30c12218630c68af364190f819cc2;p=youtube-dl.git diff --git a/youtube-dl b/youtube-dl index 4acdecd79..e3dafad69 100755 --- a/youtube-dl +++ b/youtube-dl @@ -19,7 +19,7 @@ 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', + 'User-Agent': 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2', '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', @@ -58,6 +58,22 @@ class UnavailableFormatError(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. @@ -98,6 +114,7 @@ class FileDownloader(object): 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 @@ -126,10 +143,12 @@ 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) @@ -166,13 +185,13 @@ 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): @@ -184,6 +203,14 @@ class FileDownloader(object): multiplier = 1024.0 ** 'bkmgtpezy'.index(matchobj.group(2).lower()) return long(round(number * multiplier)) + @staticmethod + def verify_url(url): + """Verify a URL is valid and data could be downloaded.""" + request = urllib2.Request(url, None, std_headers) + data = urllib2.urlopen(request) + data.read(1) + data.close() + def add_info_extractor(self, ie): """Add an InfoExtractor object to the end of the list.""" self._ies.append(ie) @@ -202,7 +229,7 @@ class FileDownloader(object): def to_stderr(self, message): """Print message to stderr.""" - print >>sys.stderr, message + print >>sys.stderr, message.encode(locale.getpreferredencoding()) def fixed_template(self): """Checks if the output template is fixed.""" @@ -242,6 +269,18 @@ 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.""" @@ -249,23 +288,29 @@ class FileDownloader(object): 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: + self.verify_url(info_dict['url']) + 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(locale.getpreferredencoding()) + if self.params.get('forceurl', False): + print info_dict['url'].encode(locale.getpreferredencoding()) + return + try: - filename = self.params['outtmpl'] % info_dict - self.report_destination(filename) + 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['nooverwrites'] and os.path.exists(filename): - self.to_stderr('WARNING: file exists: %s; skipping' % filename) + self.to_stderr(u'WARNING: file exists: %s; skipping' % filename) return try: @@ -275,27 +320,23 @@ class FileDownloader(object): return try: - outstream = open(filename, 'wb') + success = self._do_download(filename, info_dict['url']) 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: - os.remove(filename) raise UnavailableFormatError 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)) + 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.""" if len(url_list) > 1 and self.fixed_template(): @@ -331,21 +372,43 @@ class FileDownloader(object): if info is None: break - def _do_download(self, stream, url): + def _do_download(self, filename, url): + stream = None + open_mode = 'ab' + + basic_request = urllib2.Request(url, None, std_headers) request = urllib2.Request(url, None, std_headers) - data = urllib2.urlopen(request) + + # Attempt to resume download with "continuedl" option + if os.path.isfile(filename): + resume_len = os.path.getsize(filename) + else: + resume_len = 0 + if self.params['continuedl'] and resume_len != 0: + self.report_resuming_byte(resume_len) + request.add_header('Range','bytes=%d-' % resume_len) + + # Establish connection + try: + data = urllib2.urlopen(request) + except (urllib2.HTTPError, ), err: + if err.code != 416: # 416 is 'Requested range not satisfiable' + raise + data = urllib2.urlopen(basic_request) + content_length = data.info()['Content-Length'] + if content_length is not None and long(content_length) == resume_len: + self.report_file_already_downloaded(filename) + return True + else: + 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) @@ -354,15 +417,31 @@ 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 = 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. @@ -433,7 +512,7 @@ class YoutubeIE(InfoExtractor): _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 = ['22', '18', '17', '13'] # listed in order of priority for -b flag + _available_formats = ['22', '35', '18', '5', '17', '13', None] # listed in order of priority for -b flag _video_extensions = { '13': '3gp', '17': 'mp4', @@ -480,9 +559,9 @@ class YoutubeIE(InfoExtractor): """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_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.""" @@ -585,53 +664,62 @@ class YoutubeIE(InfoExtractor): best_quality = True while True: + # Extension + video_extension = self._video_extensions.get(format_param, 'flv') + + # Get video info + video_info_url = 'http://www.youtube.com/get_video_info?&video_id=%s&el=detailpage&ps=default&eurl=&gl=US&hl=en' % video_id + request = urllib2.Request(video_info_url, None, std_headers) try: - # Extension - video_extension = self._video_extensions.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._downloader.trouble(u'ERROR: unable to download video webpage: %s' % str(err)) - return - self.report_information_extraction(video_id) - - # "t" param - mobj = re.search(r', "t": "([^"]+)"', video_webpage) - if mobj is None: - self._downloader.trouble(u'ERROR: unable to extract "t" parameter') - return - video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s&el=detailpage&ps=' % (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) + self.report_video_info_webpage_download(video_id) + video_info_webpage = urllib2.urlopen(request).read() + except (urllib2.URLError, httplib.HTTPException, socket.error), err: + self._downloader.trouble(u'ERROR: unable to download video info webpage: %s' % str(err)) + return + self.report_information_extraction(video_id) - # uploader - mobj = re.search(r"var watchUsername = '([^']+)';", video_webpage) + # "t" param + mobj = re.search(r'(?m)&token=([^&]+)(?:&|$)', video_info_webpage) + if mobj is None: + # Attempt to see if YouTube has issued an error message + mobj = re.search(r'(?m)&reason=([^&]+)(?:&|$)', video_info_webpage) if mobj is None: - self._downloader.trouble(u'ERROR: unable to extract uploader nickname') - return - video_uploader = mobj.group(1) + self._downloader.trouble(u'ERROR: unable to extract "t" parameter for unknown reason') + stream = open('reportme-ydl-%s.dat' % time.time(), 'wb') + stream.write(video_info_webpage) + stream.close() + else: + reason = urllib.unquote_plus(mobj.group(1)) + self._downloader.trouble(u'ERROR: YouTube said: %s' % reason.decode('utf-8')) + return + token = urllib.unquote(mobj.group(1)) + video_real_url = 'http://www.youtube.com/get_video?video_id=%s&t=%s&eurl=&el=detailpage&ps=default&gl=US&hl=en' % (video_id, token) + 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'(?m)&author=([^&]+)(?:&|$)', video_info_webpage) + if mobj is None: + self._downloader.trouble(u'ERROR: unable to extract uploader nickname') + return + video_uploader = urllib.unquote(mobj.group(1)) - # title - mobj = re.search(r'(?im)