Optimize top_downloads post analysis plugin

plugins/post_analysis/top_downloads.py

@@ -53,19 +53,14 @@ class IWLAPostAnalysisTopDownloads(IPlugin):
     def __init__(self, iwla):
         super(IWLAPostAnalysisTopDownloads, self).__init__(iwla)
         self.API_VERSION = 1
-        self.conf_requires = ['multimedia_files', 'viewed_http_codes']
 
     def hook(self):
-        stats = self.iwla.getCurrentVisists()
+        stats = self.iwla.getValidVisitors()
         month_stats = self.iwla.getMonthStats()
 
-        multimedia_files = self.iwla.getConfValue('multimedia_files')
-        viewed_http_codes = self.iwla.getConfValue('viewed_http_codes')
-
         top_downloads = month_stats.get('top_downloads', {})
 
         for (k, super_hit) in stats.items():
-            if super_hit['robot']: continue
             for r in super_hit['requests'][::-1]:
                 if not self.iwla.isValidForCurrentAnalysis(r):
                     break
@@ -75,13 +70,8 @@ class IWLAPostAnalysisTopDownloads(IPlugin):
 
                 uri = r['extract_request']['extract_uri'].lower()
 
-                isMultimedia = False
-                for ext in multimedia_files:
-                    if uri.endswith(ext):
-                        isMultimedia = True
-                        break
-
-                if isMultimedia: continue
+                if self.iwla.isMultimediaFile(uri):
+                    continue
 
                 uri = "%s%s" % (r.get('server_name', ''),
                                 r['extract_request']['extract_uri'])