Source Code for Module toon.web

  1  #!/usr/bin/env python 
  2  # 
  3  # Toonloop for Python 
  4  # 
  5  # Copyright 2008 Alexandre Quessy & Tristan Matthews 
  6  # <alexandre@quessy.net> & <le.businessman@gmail.com> 
  7  # http://www.toonloop.com 
  8  # 
  9  # Original idea by Alexandre Quessy 
 10  # http://alexandre.quessy.net 
 11  # 
 12  # Toonloop is free software: you can redistribute it and/or modify 
 13  # it under the terms of the GNU General Public License as published by 
 14  # the Free Software Foundation, either version 3 of the License, or 
 15  # (at your option) any later version. 
 16  # 
 17  # Toonloop is distributed in the hope that it will be useful, 
 18  # but WITHOUT ANY WARRANTY; without even the implied warranty of 
 19  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 20  # GNU General Public License for more details. 
 21  # 
 22  # You should have received a copy of the gnu general public license 
 23  # along with Toonloop.  If not, see <http://www.gnu.org/licenses/>. 
 24  # 
 25  """ 
 26  Toonloop Web server for files and RSS feeds. 
 27  """ 
 28  import os 
 29  import sys 
 30   
 31  from twisted.internet import reactor 
 32  from nevow import static 
 33  from nevow import appserver 
 34  from nevow import rend 
 35   
 36  from toon import rss 
 37  from toon import rst 
 38   
 39 -class Index(rst.ReStructured, rend.Page): 
 40      """ 
 41      Class representing the root (/) of the web server.  
 42      """ 
 43      addSlash = True 
 44   
 45 -    def __init__(self, toonloop, **kwargs): 
 46          self.static_files_path = os.curdir 
 47          self.index_file_path = os.path.join(os.path.dirname(__file__), 'data', 'index.rst') 
 48          self.port = 8000 
 49          self.__dict__.update(**kwargs) 
 50           
 51          print "Static files root:", self.static_files_path 
 52          try: 
 53              self.toonloop = toonloop 
 54          except AttributeError, e: 
 55              print 'web_server: Index', e.message 
 56              self.toonloop = None 
 57          try: 
 58              rst.ReStructured.__init__(self, self.index_file_path) 
 59          except IOError, e: 
 60              print "Error reading rst file.", e.message, self.index_file_path 
 61          # child_* attributes serve some static files 
 62          # TODO: RSS feed and web form 
 63          self.child_files = static.File(self.static_files_path) # os.path.join 
 64          self.child_data = static.File(os.path.join(os.path.dirname(__file__), 'data')) 
 65          self.child_rss = rss.RSSPage(port=self.port, root=self.static_files_path) 
 66       
 67 -    def renderHTTP(self, request): 
 68          """ 
 69          Renders the / page 
 70          """ 
 71          return rst.ReStructured.render(self, request) 
 72   
 73 -def start(toonloop, port=8000, **kwargs):  
 74      """ 
 75      Called from the main application to start the web UI. 
 76      Config argmuments ARE overriden from the application. 
 77   
 78      :param toonloop: The application 
 79      :param port: web server port 
 80      """ 
 81      # These are default values and are overriden in the main toonloop script. 
 82      web_config = { 
 83          'static_files_path':os.path.expanduser("~/Documents/toonloop"), 
 84           'index_file_path':os.path.join(os.path.dirname(__file__), 'data', 'index.rst'),  
 85          'port':port 
 86      } 
 87      web_config.update(kwargs) 
 88      #Index.static_files_path = web_config['static_files_path'] 
 89      #Index.index_file_path = web_config['index_file_path'] 
 90      site = appserver.NevowSite(Index(toonloop, **web_config)) 
 91      if toonloop.config.verbose: 
 92          print 'Starting web server on port', port 
 93          print 'Static Documentation Files Path : ', web_config['index_file_path'] 
 94      reactor.listenTCP(port, site) 
 95   
 96  if __name__ == '__main__': 
 97      # print sys.path 
 98      start(None) 
 99      try: 
100          reactor.run() 
101      except: 
102          raise 
103