sfatables/runtime.py

   1 #!/usr/bin/python
   2
   3 import sys
   4 import os
   5 import pdb
   6 import libxml2
   7
   8 from optparse import OptionParser
   9 from sfatables import commands, matches, targets
  10 from sfatables.xmlextension import Xmlextension
  11 from sfatables.globals import *
  12 from sfatables.commands.List import *
  13 from sfatables.xmlrule import *
  14
  15 class SFATablesRules:
  16     def __init__(self, chain_name):
  17         self.sorted_rule_list = []
  18         chain_dir_path = "%s/%s"%(sfatables_config,chain_name)
  19         rule_list = List().get_rule_list(chain_dir_path)
  20         for rule_number in rule_list:
  21             self.sorted_rule_list.append(XMLRule(chain_name, rule_number))
  22         return
  23
  24
  25     def apply(self, rspec):
  26         intermediate_rspec = rspec
  27         for rule in self.sorted_rule_list:
  28             intermediate_rspec  = rule.apply_interpreted(intermediate_rspec)
  29
  30         return intermediate_rspec
  31
  32 def main():
  33     incoming = SFATablesRules('INCOMING')
  34     outgoing = SFATablesRules('OUTGOING')
  35
  36     rspec = """
  37 <rspec>
  38     <request-context>
  39         <sfa><user><hrn>plc.princeton.sapan</hrn></user></sfa>
  40     </request-context>
  41
  42     <sfatables-rule>
  43             <argument>
  44                 <name>hrn</name>
  45                 <value>plc</value>
  46             </argument>
  47             <argument>
  48                 <name>whitelist</name>
  49                 <value>plc.princeton</value>
  50             </argument>
  51             <argument>
  52                 <name>blacklist</name>
  53                 <value>plc.tp</value>
  54             </argument>
  55     </sfatables-rule>
  56     <request>
  57         <nodespec>
  58             <node name="plc.princeton.planetlab-01"/>
  59             <node name="plc.princeton.planetlab-02"/>
  60             <node name="plc.princeton.planetlab-03"/>
  61             <node name="plc.princeton.planetlab-04"/>
  62             <node name="plc.tp.planetlab3"/>
  63         </nodespec>
  64     </request>
  65 </rspec>
  66     """
  67
  68
  69     print "%d rules loaded for INCOMING chain\n"%len(incoming.sorted_rule_list)
  70     print "%d rules loaded for OUTGOING chain\n"%len(outgoing.sorted_rule_list)
  71
  72     newrspec = incoming.apply(rspec)
  73     print newrspec
  74     return
  75
  76 if __name__=="__main__":
  77     main()