znc: Add filter znc_makepass, improve templating with ipv4+ipv6

1 files changed, 32 insertions, 0 deletions

diff --git a/filter_plugins/znc.py b/filter_plugins/znc.py
new file mode 100644
index 0000000..243cdd5
--- /dev/null
+++ b/filter_plugins/znc.py
@@ -0,0 +1,32 @@
+# Copyright (c) 2018 Aaron LI <aly@aaronly.me>
+# MIT License
+
+"""
+Custom Ansible template filters for "znc" role.
+"""
+
+import os
+import base64
+import hashlib
+
+
+def znc_makepass(p, method="sha256", saltlen=20):
+    """
+    Generate the salted hashed password for ZNC configuration.
+
+    Implement the "znc --makepass" command.
+
+    ZNC password format: <method>#<hash>#<salt>
+    """
+    salt = os.urandom(saltlen)
+    salt = base64.b64encode(salt)[:saltlen]
+    s = p + salt
+    h = getattr(hashlib, method)(s)
+    return "%s#%s#%s" % (method, h.hexdigest(), salt)
+
+
+class FilterModule(object):
+    def filters(self):
+        return {
+            "znc_makepass": znc_makepass,
+        }