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from livestreamer.plugins import Plugin, PluginError, NoStreamsError
from livestreamer.stream import RTMPStream
from livestreamer.utils import swfverify, urlget
from livestreamer.compat import urllib, str
from livestreamer.options import Options
import xml.dom.minidom, re, sys, random
class JustinTV(Plugin):
options = Options({
"cookie": None
})
StreamInfoURL = "http://usher.justin.tv/find/{0}.xml?type=any&p={1}&b_id=true&chansub_guid={2}&private_code=null&group=&channel_subscription={2}"
MetadataURL = "http://www.justin.tv/meta/{0}.xml?on_site=true"
SWFURL = "http://www.justin.tv/widgets/live_embed_player.swf"
@classmethod
def can_handle_url(self, url):
return ("justin.tv" in url) or ("twitch.tv" in url)
def _get_channel_name(self, url):
return url.rstrip("/").rpartition("/")[2]
def _get_metadata(self, channel):
cookie = self.options.get("cookie")
if cookie:
headers = {"Cookie": cookie}
req = urllib.Request(self.MetadataURL.format(channel), headers=headers)
else:
req = urllib.Request(self.MetadataURL.format(channel))
data = urlget(req)
try:
dom = xml.dom.minidom.parseString(data)
except Exception as err:
raise PluginError(("Unable to parse config XML: {0})").format(err))
meta = dom.getElementsByTagName("meta")[0]
metadata = {}
metadata["title"] = self._get_node_if_exists(dom, "title")
metadata["access_guid"] = self._get_node_if_exists(dom, "access_guid")
metadata["login"] = self._get_node_if_exists(dom, "login")
return metadata
def _get_node_if_exists(self, dom, name):
elements = dom.getElementsByTagName(name)
if elements and len(elements) > 0:
return self._get_node_text(elements[0])
def _get_node_text(self, element):
res = []
for node in element.childNodes:
if node.nodeType == node.TEXT_NODE:
res.append(node.data)
if len(res) == 0:
return None
else:
return "".join(res)
def _get_streaminfo(self, channelname):
def clean_tag(tag):
if tag[0] == "_":
return tag[1:]
else:
return tag
chansub = None
if self.options.get("cookie") is not None:
self.logger.info("Attempting to authenticate using cookies")
metadata = self._get_metadata(channelname)
chansub = metadata["access_guid"]
if "login" in metadata and metadata["login"] is not None:
self.logger.info("Successfully logged in as {0}", metadata["login"])
randomp = int(random.random() * 999999)
url = self.StreamInfoURL.format(channelname, randomp, chansub)
self.logger.debug("Fetching stream info")
data = urlget(url)
# fix invalid xml
data = re.sub(b"<(\d+)", b"<_\g<1>", data)
data = re.sub(b"</(\d+)", b"</_\g<1>", data)
streams = {}
try:
dom = xml.dom.minidom.parseString(data)
except Exception as err:
raise PluginError(("Unable to parse config XML: {0})").format(err))
nodes = dom.getElementsByTagName("nodes")[0]
if len(nodes.childNodes) == 0:
return streams
self.logger.debug("Verifying SWF: {0}", self.SWFURL)
swfhash, swfsize = swfverify(self.SWFURL)
for node in nodes.childNodes:
info = {}
for child in node.childNodes:
info[child.tagName] = self._get_node_text(child)
stream = RTMPStream(self.session, {
"rtmp": ("{0}/{1}").format(info["connect"], info["play"]),
"swfUrl": self.SWFURL,
"swfhash": swfhash,
"swfsize": swfsize,
"live": True
})
sname = clean_tag(node.tagName)
if "token" in info:
stream.params["jtv"] = info["token"]
else:
self.logger.warning("No token found for stream {0}, this stream may fail to play", sname)
streams[sname] = stream
return streams
def _get_streams(self):
channelname = self._get_channel_name(self.url)
if not channelname:
raise NoStreamsError(self.url)
return self._get_streaminfo(channelname)
__plugin__ = JustinTV
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