Copy attributes in addition of internal tags.

[sfa.git] / sfatables / runtime.py

diff --git a/sfatables/runtime.py b/sfatables/runtime.py
index 1aac773..a536335 100644 (file)
--- a/sfatables/runtime.py
+++ b/sfatables/runtime.py
@@ -16,12 +16,28 @@ class SFATablesRules:
         self.active_context = {}
         self.contexts = None # placeholder for rspec_manger
         self.sorted_rule_list = []
+        self.final_processor = '__sfatables_wrap_up__.xsl'
         chain_dir_path = os.path.join(sfatables_config,chain_name)
         rule_list = List().get_rule_list(chain_dir_path)
         for rule_number in rule_list:
             self.sorted_rule_list = self.sorted_rule_list + [XMLRule(chain_name, rule_number)]
         return
 
+    def wrap_up(self, doc):
+        filepath = os.path.join(sfatables_config, 'processors', self.final_processor)
+
+        if not os.path.exists(filepath):
+            raise Exception('Could not find final rule filter')
+
+        styledoc = libxml2.parseFile(filepath)
+        style = libxslt.parseStylesheetDoc(styledoc)
+        result = style.applyStylesheet(doc, None)
+        stylesheet_result = style.saveResultToString(result)
+        style.freeStylesheet()
+        doc.freeDoc()
+        result.freeDoc()
+
+        return stylesheet_result
 
     def set_context(self, request_context):
         self.active_context = request_context
@@ -34,12 +50,14 @@ class SFATablesRules:
                 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")
+        context = p.xpathEval("//RSpec")
         if (not context):
             raise Exception('Request is not an rspec')
         else:
@@ -49,53 +67,39 @@ class SFATablesRules:
         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()
-
-        return doc
-
+    
     def apply(self, rspec):
-        doc = libxml2.parseDoc(rspec)
-        doc = self.add_request_context_to_rspec(doc)
+        if (self.sorted_rule_list):
+            doc = libxml2.parseDoc(rspec)
+            doc = self.add_request_context_to_rspec(doc)
 
-        intermediate_rspec = doc
+            intermediate_rspec = doc
 
-        for rule in self.sorted_rule_list:
-            intermediate_rspec  = rule.apply_interpreted(intermediate_rspec)
-            if (rule.terminal):
-                break
+            for rule in self.sorted_rule_list:
+                (matched,intermediate_rspec) = rule.apply_interpreted(intermediate_rspec)
+                if (rule.terminal and matched):
+                    break
+
+            final_rspec = self.wrap_up(intermediate_rspec) 
+        else:
+            final_rspec = rspec
 
-        final_rspec = XMLRule().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)