webinterface/src/plugin.py

   1 from Plugins.Plugin import PluginDescriptor
   2
   3 sessions = [ ]
   4
   5 # set DEBUG to True, if twisted should write logoutput to a file.
   6 DEBUG = False
   7 DEBUGFILE= "/tmp/twisted.log"
   8
   9 def startWebserver():
  10         from twisted.internet import reactor
  11         from twisted.web2 import server, channel, static, resource, stream, http_headers, responsecode, http
  12         from twisted.python import util
  13         import webif
  14
  15         class ScreenPage(resource.Resource):
  16                 def __init__(self, path):
  17                         self.path = path
  18
  19                 def render(self, req):
  20                         global sessions
  21                         if sessions == [ ]:
  22                                 return http.Response(200, stream="please wait until enigma has booted")
  23
  24                         class myProducerStream(stream.ProducerStream):
  25                                 closed_callback = None
  26
  27                                 def close(self):
  28                                         if self.closed_callback:
  29                                                 self.closed_callback()
  30                                         stream.ProducerStream.close(self)
  31
  32                         s = myProducerStream()
  33                         webif.renderPage(s, self.path, req, sessions[0])  # login?
  34
  35                         return http.Response(stream=s)
  36
  37                 def locateChild(self, request, segments):
  38                         path = '/'.join(["web"] + segments)
  39                         if path[-1:] == "/":
  40                                 path += "index.html"
  41
  42                         path += ".xml"
  43                         return ScreenPage(path), ()
  44
  45         class Toplevel(resource.Resource):
  46                 addSlash = True
  47
  48                 def render(self, req):
  49                         return http.Response(responsecode.OK, {'Content-type': http_headers.MimeType('text', 'html')},
  50                                 stream='Hello! You want go to <a href="/web/">OSD</a> instead.')
  51
  52                 child_web = ScreenPage("/") # "/web"
  53                 child_hdd = static.File("/hdd")
  54                 child_webdata = static.File(util.sibpath(__file__, "web-data")) # FIXME: web-data appears as webdata
  55
  56         site = server.Site(Toplevel())
  57
  58         reactor.listenTCP(80, channel.HTTPFactory(site))
  59
  60 def autostart(reason, **kwargs):
  61         if "session" in kwargs:
  62                 global sessions
  63                 sessions.append(kwargs["session"])
  64                 return
  65
  66         if reason == 0:
  67                 try:
  68                         """
  69                          in normal console output, twisted will print only the first Traceback.
  70                          is this a bug in twisted or a conflict with enigma2?
  71                          with this option enabled, twisted will print all TB to the logfile
  72                          use tail -f <file> to view this log
  73                         """
  74                         if DEBUG:
  75                                 from twisted.python.log import startLogging
  76                                 print "start twisted logfile, writing to %s" % DEBUGFILE
  77                                 startLogging(open(DEBUGFILE,'w'))
  78
  79                         startWebserver()
  80                 except ImportError:
  81                         print "twisted not available, not starting web services"
  82
  83 def Plugins(**kwargs):
  84         return PluginDescriptor(where = [PluginDescriptor.WHERE_SESSIONSTART, PluginDescriptor.WHERE_AUTOSTART], fnc = autostart)