Tip! Use this bookmarklet: YouTube Download to easily download videos. Right-click the link and add it to bookmarks, then when you're looking at a YouTube page select that bookmark from your browser's bookmarks menu to download the video straight away.
""".replace("{0}", msg).replace("{1}", url) def parse_url(url): f = urllib.urlopen(url) doc = document_fromstring(f.read()) f.close() return doc def get_video_url(doc): embed = doc.xpath("//embed")[0] flashvars = embed.attrib["flashvars"] flashvars = cgi.parse_qs(flashvars) fmt_url_map = {} for pair in flashvars["fmt_url_map"][0].split(","): key, value = pair.split("|") key = int(key) fmt_url_map[key] = value for fmt, extension in fmt_quality: try: video_url = fmt_url_map[fmt] return video_url, extension break except KeyError: continue return None, None def print_filename_header(doc, extension): title = doc.xpath("/html/head/title/text()")[0] title = re.sub("\s+", " ", title.strip()) valid_chars = frozenset("\\/-_.() abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789") filename = "".join(c for c in title.encode("ascii", "ignore") if c in valid_chars) filename += extension sys.stdout.write("Content-Disposition: attachment; filename=\"%s\"\r\n" % filename) def print_stream_file(video_url, silent=True): cmd = [ "curl", "--user-agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1", "--include", video_url, ] if silent: cmd.insert(1, "--silent") p = subprocess.Popen(cmd, stdout=subprocess.PIPE) block = 32768 data = p.stdout.read(block) data = data[data.find("\n")+1:] sys.stdout.write(data) while len(data) > 0: data = p.stdout.read(block) sys.stdout.write(data) p.wait() def main(): args = cgi.parse() try: url = args["url"][0] except: print_form(url="http://www.youtube.com/watch?v=FOOBAR") return try: doc = parse_url(url) video_url, extension = get_video_url(doc) print_filename_header(doc, extension) print_stream_file(video_url, silent=True) except Exception, e: print_form( url=url, msg="Sorry, there was an error. Check your URL?
" ) return if __name__ == "__main__": main()