From 468655fb3bdb37e3fafd4e214cb6b08530d7b8cd Mon Sep 17 00:00:00 2001
From: Paul Lecuq <paul@paulbsd.com>
Date: Mon, 29 Feb 2016 10:03:46 +0100
Subject: [PATCH] package added

---
 pysquidblacklists/__init__.py          |   3 +
 pysquidblacklists/pysquidblacklists.py | 148 +++++++++++++++++++++++++
 2 files changed, 151 insertions(+)
 create mode 100644 pysquidblacklists/__init__.py
 create mode 100644 pysquidblacklists/pysquidblacklists.py

diff --git a/pysquidblacklists/__init__.py b/pysquidblacklists/__init__.py
new file mode 100644
index 0000000..c677702
--- /dev/null
+++ b/pysquidblacklists/__init__.py
@@ -0,0 +1,3 @@
+from pysquidblacklists import PySquidBlacklistsRunner
+from pysquidblacklists import PySquidBlacklistsImporter
+from pysquidblacklists import PySquidBlacklistsConfig
diff --git a/pysquidblacklists/pysquidblacklists.py b/pysquidblacklists/pysquidblacklists.py
new file mode 100644
index 0000000..6be6e9e
--- /dev/null
+++ b/pysquidblacklists/pysquidblacklists.py
@@ -0,0 +1,148 @@
+import os
+import re
+import sys
+import configparser
+import cdb
+from urlparse import urlparse
+
+
+class PySquidBlacklistsRunner:
+    def __init__(self, config, bli):
+        self.base_dir = config.base_dir
+        self.db_backend = config.db_backend
+        self.cache = bli.cache
+        self.cdb_cache = dict()
+        if self.db_backend == "ram":
+            pass
+        elif self.db_backend == "cdb":
+            for blacklist in self.cache:
+                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 = self.cdb_cache[blacklist][tmpline]
+                    pass
+                except KeyError:
+                    pass
+                tmpline = tmpline.partition('.')[2]
+        return result
+
+    def loop(self):
+        while True:
+            try:
+                line = sys.stdin.readline().strip()
+                if line == "":
+                    exit()
+                self.outline = urlparse(line).netloc
+                if line:
+                    if self.domain_compare():
+                        self.response("OK")
+                    else:
+                        self.response("ERR")
+            except IOError:
+                pass
+
+    @staticmethod
+    def response(r):
+        sys.stdout.write("%s\n" % r)
+        sys.stdout.flush()
+
+
+class PySquidBlacklistsImporter:
+    def __init__(self, config):
+        self.db_backend = config.db_backend
+        self.categories = config.categories
+        self.base_dir = config.base_dir
+        self.blacklists_dir = config.blacklists_dir
+        if os.path.isdir(self.base_dir):
+            self.domain_files = [os.path.join(dp, f) for dp, dn, fn in os.walk(os.path.expanduser(self.blacklists_dir)) for f in
+                                 fn if re.match(r"domains*", f)]
+        else:
+            exit("blacklists_dir doesn't exists. Please update using py-sb-tool.py")
+        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
+
+
+class PySquidBlacklistsConfig:
+    def __init__(self):
+        self.url = None
+        self.filename = None
+        self.base_dir = None
+        self.blacklists_dir = None
+        self.archive = None
+        self.db_backend = None
+        self.categories = None
+        self.config = configparser.RawConfigParser()
+        self.config_path = None
+
+    def get_config(self):
+        self.get_path()
+        self.config.read(self.config_path)
+        self.url = str(self.config.get("main", "url"))
+        self.filename = self.url.split("/").pop()
+        self.base_dir = str(self.config.get("main", "base_dir"))
+        self.blacklists_dir = "%sblacklists" % self.base_dir
+        self.archive = "%s%s" % ("/tmp/", self.filename)
+        self.db_backend = str(self.config.get("main", "db_backend"))
+        self.categories = []
+        for cat in self.config.get("main", "categories").split(","):
+            self.categories.append(str(cat))
+
+    def set_config(self, section, attr):
+        self.config.set(section, attr)
+
+    def get_path(self):
+        filename = "py-squid-blacklists.conf"
+        config_path = "%s/%s" % (os.path.dirname(os.path.abspath(__name__)), filename)
+
+        if os.path.exists(config_path):
+            self.config_path = config_path
+        else:
+            exit("No config file available at common paths. Must initialize it")