Code refactoring

Importer class provisionned
Improved speed using CDB

config.py.sample

@@ -2,7 +2,7 @@
 url = "http://dsi.ut-capitole.fr/blacklists/download/blacklists.tar.gz"
 
 # categories
-categories = ["adult","malware"]
+categories = ["adult", "malware"]
 
 # base directory for blacklists
 base_dir = "/usr/local/py-squid-blacklists/blacklists/"

py-squid-blacklists.py

@@ -18,70 +18,28 @@ except ImportError:
 
 
 class PySquidBlacklists:
-    def __init__(self, config):
+    def __init__(self, config, bli):
-        self.db_backend = config.db_backend
-        self.categories = config.categories
         self.base_dir = config.base_dir
-        self.domain_files = [os.path.join(dp, f) for dp, dn, fn in os.walk(os.path.expanduser(self.base_dir)) for f in
+        self.db_backend = config.db_backend
-                             fn if re.match(r"domains*", f)]
+        self.cache = bli.cache
-        self.blacklist_files = self.make_list()
+        self.cdb_cache = dict()
-        if self.db_backend == "ram":
-            self.cache = self.make_ram_db()
-        elif self.db_backend == "cdb":
-            self.cache = self.make_cdb_db()
-        self.loop()
-
-    def make_list(self):
-        blacklists = []
-        for l in self.domain_files:
-            splitlist = l.split("/")
-            list_type = splitlist[len(splitlist) - 2]
-            blacklists.append([list_type, l])
-        return blacklists
-
-    def make_ram_db(self):
-        lib = dict()
-        for bls in self.blacklist_files:
-            if self.db_backend == "ram":
-                if bls[0] in self.categories:
-                    cache = dict()
-                    f = open(bls[1], "r")
-                    for l in f:
-                        cache[l.strip("\n")] = True
-                    lib[bls[0]] = cache
-                    del cache
-        return lib
-
-    def make_cdb_db(self):
-        lib = []
-        for bl in self.blacklist_files:
-            bl_cdb_file = ("%s/%s.cdb" % (self.base_dir, bl[0]))
-            bl_cdb_file_tmp = ("%s/%s.tmp" % (self.base_dir, bl[0]))
-            if (bl[0] in self.categories):
-                if not os.path.isfile(bl_cdb_file):
-                    cdb_file = cdb.cdbmake(bl_cdb_file, bl_cdb_file_tmp)
-                    f = open(bl[1], "r")
-                    for line in f:
-                        cdb_file.add(line.strip("\n"), "True")
-                    cdb_file.finish()
-                lib.append(bl_cdb_file)
-        return lib
-
-    def domain_compare(self, outline):
-        global cdb_file
-        result = False
         for blacklist in self.cache:
-            tmpline = outline
             if self.db_backend == "ram":
                 pass
             elif self.db_backend == "cdb":
-                cdb_file = cdb.init(blacklist)
+                self.cdb_cache[blacklist] = cdb.init(blacklist)
+        self.loop()
+
+    def domain_compare(self):
+        result = False
+        for blacklist in self.cache:
+            tmpline = self.outline
             while not result and tmpline != "":
                 try:
                     if self.db_backend == "ram":
                         result = self.cache[blacklist][tmpline]
                     elif self.db_backend == "cdb":
-                        result = cdb_file[tmpline]
+                        result = self.cdb_cache[blacklist][tmpline]
                     pass
                 except KeyError:
                     pass
@@ -94,9 +52,9 @@ class PySquidBlacklists:
                 line = sys.stdin.readline().strip()
                 if line == "":
                     exit()
-                outline = urlparse(line).netloc
+                self.outline = urlparse(line).netloc
                 if line:
-                        if self.domain_compare(outline):
+                    if self.domain_compare():
                         self.response("OK")
                     else:
                         self.response("ERR")
@@ -111,8 +69,53 @@ class PySquidBlacklists:
 
 class PySquidBlacklistsImporter:
     def __init__(self, conf):
-        self.test = True
+        self.db_backend = config.db_backend
-        self.db = conf.db_backend
+        self.categories = config.categories
+        self.base_dir = config.base_dir
+        self.domain_files = [os.path.join(dp, f) for dp, dn, fn in os.walk(os.path.expanduser(self.base_dir)) for f in
+                             fn if re.match(r"domains*", f)]
+        self.blacklist_files = self.make_list()
+        self.cache = None
+        if self.db_backend == "ram":
+            self.make_ram_db()
+        elif self.db_backend == "cdb":
+            self.make_cdb_db()
+
+    def make_list(self):
+        blacklists = []
+        for l in self.domain_files:
+            splitlist = l.split("/")
+            list_type = splitlist[len(splitlist) - 2]
+            blacklists.append([list_type, l])
+        return blacklists
+
+    def make_ram_db(self):
+        lib = dict()
+        for bls in self.blacklist_files:
+            if bls[0] in self.categories:
+                blcache = dict()
+                f = open(bls[1], "r")
+                for l in f:
+                    blcache[l.strip("\n")] = True
+                lib[bls[0]] = blcache
+                del blcache
+        self.cache = lib
+
+    def make_cdb_db(self):
+        lib = []
+        for bl in self.blacklist_files:
+            bl_cdb_file = ("%s/%s.cdb" % (self.base_dir, bl[0]))
+            bl_cdb_file_tmp = ("%s/%s.tmp" % (self.base_dir, bl[0]))
+            if bl[0] in self.categories:
+                if not os.path.isfile(bl_cdb_file):
+                    cdb_file = cdb.cdbmake(bl_cdb_file, bl_cdb_file_tmp)
+                    f = open(bl[1], "r")
+                    for line in f:
+                        cdb_file.add(line.strip("\n"), "True")
+                    cdb_file.finish()
+                lib.append(bl_cdb_file)
+        self.cache = lib
 
 
-bl = PySquidBlacklists(config)
+bli = PySquidBlacklistsImporter(config)
+bl = PySquidBlacklists(config, bli)