parse piuparts: back on readlines, more secure

debomatic-modules/JSONLogger.py

@@ -213,15 +213,8 @@ class LogParser():
 
     def parse_piuparts(self):
         with open(self.file, 'r') as fd:
-            offs = -1024
-            while True:
-                fd.seek(offs, 2)
             lines = fd.readlines()
-                if len(lines) > 1:
-                    last_line = lines[-1]
-                    break
-                offs *= 2
-            if last_line.find('ERROR:') >= 0:
+            if len(lines) == 0 or lines[-1].find('ERROR:') >= 0:
                 return 'E'
         return None