Add builder

This is an initial implementation of hosts.txt builder service.

builder

@@ -0,0 +1,21 @@
+#!/usr/bin/python
+
+import os
+import sys
+
+# django setup
+DJANGO_SETTINGS_MODULE = 'settings'
+DJANGO_PROJECT_PATH = 'web'
+sys.path.insert(1, DJANGO_PROJECT_PATH)
+os.environ['DJANGO_SETTINGS_MODULE'] = DJANGO_SETTINGS_MODULE
+from web.postkey.models import i2phost
+
+# result hosts.txt
+hostsfile = 'hosts.txt'
+
+f = open(hostsfile, 'w')
+# select name and hash for all activated hosts
+l = i2phost.objects.filter(activated=True).values('name', 'b64hash')
+for entry in l:
+	f.write(entry['name'] + '=' + entry['b64hash'])
+f.close()