X-Git-Url: http://git.onelab.eu/?p=sfa.git;a=blobdiff_plain;f=sfatables%2Fxmlrule.py;h=70055dd917f02c0b0ace2eb45345ba8c7d38c79d;hp=381b587190dce38d6fdc8a83d3a9c863dfa1cdc0;hb=46d88522f413cd62c60b081b296634444564813e;hpb=f17d257364748630be54d23293c6def022e2a75b diff --git a/sfatables/xmlrule.py b/sfatables/xmlrule.py index 381b5871..70055dd9 100644 --- a/sfatables/xmlrule.py +++ b/sfatables/xmlrule.py @@ -1,4 +1,5 @@ import libxml2 +import libxslt from sfatables.globals import * class XMLRule: @@ -6,18 +7,47 @@ class XMLRule: chain = None xmldoc = None terminal = 0 + final_processor = '__sfatables_wrap_up__.xsl' arguments = {'match':None,'target':None} processors = {'match':None,'target':None} context = {'match':None,'target':None} - def apply_processor(self, type, rspec): - processor = processors[type] - styledoc = libxml2.parseFile(processor) + def apply_processor(self, type, rspec, output_xpath_filter=None): + processor = self.processors[type] + + # XXX TO CLEAN UP + filepath = 'processors/' + processor + # XXX + + styledoc = libxml2.parseFile(filepath) style = libxslt.parseStylesheetDoc(styledoc) doc = libxml2.parseDoc(rspec) result = style.applyStylesheet(doc, None) - processed_result = style.saveResultToString(result, 0) + if (output_xpath_filter): + p = result.xpathNewContext() + xpath_result = p.xpathEval(output_xpath_filter) + if (xpath_result == []): + raise Exception("Could not apply processor %s."%processor) + + stylesheet_result = xpath_result[0].content + p.xpathFreeContext() + else: + stylesheet_result = style.saveResultToString(result) + style.freeStylesheet() + doc.freeDoc() + result.freeDoc() + + return stylesheet_result + + def wrap_up(self, rspec): + filepath = 'processors/' + self.final_processor + + styledoc = libxml2.parseFile(filepath) + style = libxslt.parseStylesheetDoc(styledoc) + doc = libxml2.parseDoc(rspec) + result = style.applyStylesheet(doc, None) + stylesheet_result = style.saveResultToString(result) style.freeStylesheet() doc.freeDoc() result.freeDoc() @@ -25,11 +55,11 @@ class XMLRule: return stylesheet_result def match(self, rspec): - match_result = self.apply_processor('match',rspec) + match_result = self.apply_processor('match',rspec,"//result/@verdict") return (match_result=='True') def target(self, rspec): - target_result = self.apply_processor('target',rspec) + target_result = self.apply_processor('target',rspec,None) return target_result def apply_interpreted(self, rspec): @@ -81,13 +111,12 @@ class XMLRule: root_node.addChild(arguments[type]) return rspec - def __init__(self, chain, rule_number): - - self.load_xml_extension('match', chain, rule_number) - self.load_xml_extension('target',chain, rule_number) - self.rule_number = rule_number - self.chain = chain - + def __init__(self, chain=None, rule_number=None): + if (chain and rule_number): + self.load_xml_extension('match', chain, rule_number) + self.load_xml_extension('target',chain, rule_number) + self.rule_number = rule_number + self.chain = chain return def free(self):