feat: Add nostr

nostr.py

@@ -0,0 +1,29 @@
+from base64 import b32decode
+from base64 import b16encode
+from bech32 import bech32_decode
+from bech32 import bech32_encode
+
+B32 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567"
+
+def add_padding(base32_len):
+    bits = base32_len * 5
+    padding_size = (8 - (bits % 8)) % 8
+    return padding_size
+
+def npub_to_hex(npub):
+    hrd, data = bech32_decode(npub)
+    b32_data = [B32[index] for index in data]
+    data_str = "".join(b32_data)
+    data_length = len(data_str)
+    data_str += "=" * add_padding(data_length)
+    decoded_data = b32decode(data_str)
+    b16_encoded_data = b16encode(decoded_data)
+    hex_str = b16_encoded_data.decode("utf-8").lower()
+    return hex_str
+
+def json(links):
+    names = {}
+    for link in links:
+        names[link['name']] = npub_to_hex(link['pub'])
+
+    return {'names':names}