X-Git-Url: https://git.kaliko.me/?a=blobdiff_plain;f=sima%2Futils%2Futils.py;h=ff0641057afdb57ce11c57131202f9d6378cbac0;hb=194de8ab2773bd8e456590e3876a0aca1fe4d564;hp=07c317fcba587e584ba1afdf5a12f3a6e2f20628;hpb=0236b2bf31b893ab0b53374c0d3a0bc0ab9deda3;p=mpd-sima.git

diff --git a/sima/utils/utils.py b/sima/utils/utils.py
index 07c317f..ff06410 100644
--- a/sima/utils/utils.py
+++ b/sima/utils/utils.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 #
-# Copyright (c) 2010, 2011, 2013 Jack Kaliko <kaliko@azylum.org>
+# Copyright (c) 2010, 2011, 2013, 2014 Jack Kaliko <kaliko@azylum.org>
 #
 #  This file is part of sima
 #
@@ -18,15 +18,31 @@
 #  along with sima.  If not, see <http://www.gnu.org/licenses/>.
 #
 #
-"""generic tools and utilitaries for sima
+"""generic tools and utilities for sima
 """
+# pylint: disable=C0111
 
 import traceback
 import sys
 
 from argparse import ArgumentError, Action
+from base64 import b64decode as push
+from codecs import getencoder
+from datetime import datetime
 from os import environ, access, getcwd, W_OK, R_OK
 from os.path import dirname, isabs, join, normpath, exists, isdir, isfile
+from time import sleep
+
+
+def getws(dic):
+    """
+    Decode Obfuscated api key.
+    Only preventing API keys harvesting over the network
+    https://developer.echonest.com/forums/thread/105
+    """
+    aka = push(bytes(dic.get('apikey') + '=', 'utf-8'))
+    aka = getencoder('rot-13')(str((aka), 'utf-8'))[0]
+    dic.update({'apikey':aka})
 
 def get_mpd_environ():
     """
@@ -63,7 +79,9 @@ def exception_log():
     log.info('Quiting now!')
     sys.exit(1)
 
+
 class SigHup(Exception):
+    """SIGHUP raises this Exception"""
     pass
 
 # ArgParse Callbacks
@@ -130,6 +148,35 @@ class Wdir(FileAction):
         if not access(self._file, W_OK):
             self.parser.error('no write access to "{0}"'.format(self._file))
 
+class Throttle:
+    """throttle decorator"""
+    def __init__(self, wait):
+        self.wait = wait
+        self.last_called = datetime.now()
+
+    def __call__(self, func):
+        def wrapper(*args, **kwargs):
+            while self.last_called + self.wait > datetime.now():
+                sleep(0.1)
+            result = func(*args, **kwargs)
+            self.last_called = datetime.now()
+            return result
+        return wrapper
+
+# http client exceptions (for webservices)
+
+class WSError(Exception):
+    pass
+
+class WSNotFound(WSError):
+    pass
+
+class WSTimeout(WSError):
+    pass
+
+class WSHTTPError(WSError):
+    pass
+
 
 # VIM MODLINE
 # vim: ai ts=4 sw=4 sts=4 expandtab