import sys
import os
-import pdb
+
import libxml2
+import libxslt
-from optparse import OptionParser
-from sfatables import commands
-from sfatables.globals import *
-from sfatables.commands.List import *
-from sfatables.xmlrule import *
+from sfatables.globals import sfatables_config
+from sfatables.commands.List import List
+from sfatables.xmlrule import XMLRule
class SFATablesRules:
def __init__(self, chain_name):
childNode = self.create_xml_node(k, context_dict[k])
node.addChild(childNode)
else:
- node.addContent(context_dict[k])
+ childNode = libxml2.newNode(k)
+ childNode.addContent(context_dict[k])
+ node.addChild(childNode)
return node
def add_request_context_to_rspec(self, doc):
p = doc.xpathNewContext()
- context = p.xpathEval("//rspec")
- if (not context):
+ context = p.xpathEval("//*")
+ if not context or context[0].name not in ['RSpec', 'rspec']:
raise Exception('Request is not an rspec')
else:
# Add the request context
p.xpathFreeContext()
return doc
- def add_rule_context_to_rspec(self,arguments, doc):
- p = doc.xpathNewContext()
- context = p.xpathEval("//rspec")
- if (not context):
- raise Exception('Request is not an rspec')
- else:
- # Add the request context
- ruleNode = libxml2.newNode('rule-context')
- ac = self.active_context
- for k in ac:
- argumentNode = libxml2.newNode('argument')
- nameNode = libxml2.newNode('name')
- nameNode.addContent(k)
- valueNode = libxml2.newNode('value')
- valueNode.addContent(ac[k])
- argumentNode.addChild(nameNode)
- argumentNode.addChild(valueNode)
- ruleNode.addChild(argumentNode)
- context[0].addChild(ruleNode)
- p.xpathFreeContext()
+
+ def apply(self, rspec):
+ if (self.sorted_rule_list):
+ doc = libxml2.parseDoc(rspec)
+ doc = self.add_request_context_to_rspec(doc)
- return doc
+ intermediate_rspec = doc
- def apply(self, rspec):
- doc = libxml2.parseDoc(rspec)
- doc = self.add_request_context_to_rspec(doc)
+ for rule in self.sorted_rule_list:
+ (matched,intermediate_rspec) = rule.apply_interpreted(intermediate_rspec)
+ if (rule.terminal and matched):
+ break
- intermediate_rspec = doc
+ final_rspec = self.wrap_up(intermediate_rspec)
+ else:
+ final_rspec = rspec
- for rule in self.sorted_rule_list:
- import pdb
- pdb.set_trace()
- intermediate_rspec = rule.apply_interpreted(intermediate_rspec)
- intermediate_rspec = XMLRule().wrap_up(intermediate_rspec)
- if (rule.terminal):
- break
-
- final_rspec = self.wrap_up(intermediate_rspec)
return final_rspec
+ def print_rules(self):
+ for rule in self.sorted_rule_list:
+ print rule.processors
+
def main():
incoming = SFATablesRules('INCOMING')
incoming.set_context({'sfa':{'user':{'hrn':'plc.princeton.sapanb'}}})
outgoing = SFATablesRules('OUTGOING')
print "%d rules loaded for INCOMING chain"%len(incoming.sorted_rule_list)
- print incoming.sorted_rule_list[0].processors
+ incoming.print_rules()
print "%d rules loaded for OUTGOING chain"%len(outgoing.sorted_rule_list)
- print outgoing.sorted_rule_list[0].processors
+ outgoing.print_rules()
rspec = open(sys.argv[1]).read()
newrspec = incoming.apply(rspec)