Add script to regenerate index.html
[youtube-dl] / youtube-dl
index 633c87e5d1a370a813cec1839ccfba8b292f1967..135d14809554a592101ef6b9100dd41bb3dcce7f 100755 (executable)
@@ -25,6 +25,23 @@ std_headers = {
 
 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 FileDownloader(object):
        """File Downloader class.
 
@@ -165,22 +182,35 @@ class FileDownloader(object):
                """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 exit the program or
+               download errors or not, this method may throw an exception or
                not when errors are found, after printing the message. If it
-               doesn't exit, it returns an error code suitable to be returned
+               doesn't raise, it returns an error code suitable to be returned
                later as a program exit code to indicate error.
                """
                if message is not None:
                        self.to_stderr(message)
                if not self._params.get('ignoreerrors', False):
-                       sys.exit(1)
+                       raise DownloadError(message)
                return 1
 
+       def report_destination(self, filename):
+               """Report destination filename."""
+               self.to_stdout('[download] Destination: %s' % filename)
+       
+       def report_progress(self, percent_str, data_len_str, speed_str, eta_str):
+               """Report download progress."""
+               self.to_stdout('\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('')
+
        def download(self, url_list):
                """Download a given list of URLs."""
                retcode = 0
                if len(url_list) > 1 and self.fixed_template():
-                       sys.exit('ERROR: fixed output name but more than one file to download')
+                       raise SameFileError(self._params['outtmpl'])
 
                for url in url_list:
                        suitable_found = False
@@ -195,7 +225,7 @@ class FileDownloader(object):
                                        retcode = self.trouble()
 
                                if len(results) > 1 and self.fixed_template():
-                                       sys.exit('ERROR: fixed output name but more than one file to download')
+                                       raise SameFileError(self._params['outtmpl'])
 
                                for result in results:
 
@@ -211,6 +241,7 @@ class FileDownloader(object):
 
                                        try:
                                                filename = self._params['outtmpl'] % result
+                                               self.report_destination(filename)
                                        except (ValueError, KeyError), err:
                                                retcode = self.trouble('ERROR: invalid output template: %s' % str(err))
                                                continue
@@ -248,12 +279,13 @@ class FileDownloader(object):
                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.to_stdout('\r[download] %s of %s at %s ETA %s' %
-                                       (percent_str, data_len_str, speed_str, eta_str), skip_eol=True)
+                       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()
@@ -264,7 +296,7 @@ class FileDownloader(object):
                        stream.write(data_block)
                        block_size = self.best_block_size(after - before, data_block_len)
 
-               self.to_stdout('')
+               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))
 
@@ -344,6 +376,26 @@ class YoutubeIE(InfoExtractor):
        _AGE_URL = 'http://www.youtube.com/verify_age?next_url=/'
        _NETRC_MACHINE = 'youtube'
 
+       def report_login(self):
+               """Report attempt to log in."""
+               self.to_stdout('[youtube] Logging in')
+       
+       def report_age_confirmation(self):
+               """Report attempt to confirm age."""
+               self.to_stdout('[youtube] Confirming age')
+       
+       def report_webpage_download(self, video_id):
+               """Report attempt to download webpage."""
+               self.to_stdout('[youtube] %s: Downloading video webpage' % video_id)
+       
+       def report_information_extraction(self, video_id):
+               """Report attempt to extract video information."""
+               self.to_stdout('[youtube] %s: Extracting video information' % video_id)
+       
+       def report_video_url(self, video_id, video_real_url):
+               """Report extracted video URL."""
+               self.to_stdout('[youtube] %s: URL: %s' % (video_id, video_real_url))
+
        def _real_initialize(self):
                if self._downloader is None:
                        return
@@ -382,7 +434,7 @@ class YoutubeIE(InfoExtractor):
                                }
                request = urllib2.Request(self._LOGIN_URL, urllib.urlencode(login_form), std_headers)
                try:
-                       self.to_stdout('[youtube] Logging in')
+                       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('WARNING: unable to log in: bad username or password')
@@ -398,10 +450,11 @@ class YoutubeIE(InfoExtractor):
                                }
                request = urllib2.Request(self._AGE_URL, urllib.urlencode(age_form), std_headers)
                try:
-                       self.to_stdout('[youtube] Confirming age')
+                       self.report_age_confirmation()
                        age_results = urllib2.urlopen(request).read()
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       sys.exit('ERROR: unable to confirm age: %s' % str(err))
+                       self.to_stderr('ERROR: unable to confirm age: %s' % str(err))
+                       return
 
        def _real_extract(self, url):
                # Extract video id from URL
@@ -418,7 +471,7 @@ class YoutubeIE(InfoExtractor):
                        format_param = params.get('format', None)
 
                # Extension
-               video_extension = {'18': 'mp4'}.get(format_param, 'flv')
+               video_extension = {'18': 'mp4', '17': '3gp'}.get(format_param, 'flv')
 
                # Normalize URL, including format
                normalized_url = 'http://www.youtube.com/watch?v=%s' % video_id
@@ -426,11 +479,12 @@ class YoutubeIE(InfoExtractor):
                        normalized_url = '%s&fmt=%s' % (normalized_url, format_param)
                request = urllib2.Request(normalized_url, None, std_headers)
                try:
-                       self.to_stdout('[youtube] %s: Downloading video webpage' % video_id)
+                       self.report_webpage_download(video_id)
                        video_webpage = urllib2.urlopen(request).read()
                except (urllib2.URLError, httplib.HTTPException, socket.error), err:
-                       sys.exit('ERROR: unable to download video: %s' % str(err))
-               self.to_stdout('[youtube] %s: Extracting video information' % video_id)
+                       self.to_stderr('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)
@@ -440,7 +494,7 @@ class YoutubeIE(InfoExtractor):
                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.to_stdout('[youtube] %s: URL: %s' % (video_id, video_real_url))
+               self.report_video_url(video_id, video_real_url)
 
                # uploader
                mobj = re.search(r'More From: ([^<]*)<', video_webpage)
@@ -486,7 +540,7 @@ if __name__ == '__main__':
                # Parse command line
                parser = optparse.OptionParser(
                                usage='Usage: %prog [options] url...',
-                               version='INTERNAL',
+                               version='2008.07.22',
                                conflict_handler='resolve',
                                )
                parser.add_option('-h', '--help',
@@ -516,7 +570,9 @@ if __name__ == '__main__':
                parser.add_option('-f', '--format',
                                dest='format', metavar='FMT', help='video format code')
                parser.add_option('-b', '--best-quality',
-                               action='store_const', dest='video_format', help='alias for -f 18', const='18')
+                               action='store_const', dest='format', help='alias for -f 18', const='18')
+               parser.add_option('-m', '--mobile-version',
+                               action='store_const', dest='format', help='alias for -f 17', const='17')
                parser.add_option('-i', '--ignore-errors',
                                action='store_true', dest='ignoreerrors', help='continue on download errors', default=False)
                (opts, args) = parser.parse_args()
@@ -558,5 +614,9 @@ if __name__ == '__main__':
                retcode = fd.download(args)
                sys.exit(retcode)
 
+       except DownloadError:
+               sys.exit(1)
+       except SameFileError:
+               sys.exit('ERROR: fixed output name but more than one file to download')
        except KeyboardInterrupt:
                sys.exit('\nERROR: Interrupted by user')