From abe71698d45adea4b91d1e371bc3dc0b833f062b Mon Sep 17 00:00:00 2001
From: Bill Mitchell <wsmitchell3@gmail.com>
Date: Wed, 7 Feb 2018 13:56:28 -0600
Subject: [PATCH] Added support for third-party packets

---
 aprslib/parsing/__init__.py   | 11 ++++++++---
 aprslib/parsing/thirdparty.py | 21 +++++++++++++++++++++
 2 files changed, 29 insertions(+), 3 deletions(-)
 create mode 100644 aprslib/parsing/thirdparty.py

diff --git a/aprslib/parsing/__init__.py b/aprslib/parsing/__init__.py
index 376cd0b..b579d8b 100644
--- a/aprslib/parsing/__init__.py
+++ b/aprslib/parsing/__init__.py
@@ -42,6 +42,7 @@ from aprslib.parsing.mice import *
 from aprslib.parsing.message import *
 from aprslib.parsing.telemetry import *
 from aprslib.parsing.weather import *
+from aprslib.parsing.thirdparty import *
 
 
 def _unicode_packet(packet):
@@ -157,7 +158,6 @@ def _try_toparse_body(packet_type, body, parsed):
             '\\':'unused',
             ']':'unused',
             '^':'unused',
-            '}':'3rd party traffic'
     }
     # NOT SUPPORTED FORMATS
     #
@@ -178,10 +178,15 @@ def _try_toparse_body(packet_type, body, parsed):
     # \ - unused
     # ] - unused
     # ^ - unused
-    # } - 3rd party traffic
-    if packet_type in '#$%)*<?T[}':
+    if packet_type in '#$%)*<?T[':
         raise UnknownFormat('format is not supported: {0}'.format(unsupported_formats[packet_type]))
 
+    # third party
+    elif packet_type == '}':
+        logger.debug("Packet is third-party")
+
+        body, result = parse_thirdparty(body)
+
     # user defined
     elif packet_type == ',':
         logger.debug("Packet is invalid format")
diff --git a/aprslib/parsing/thirdparty.py b/aprslib/parsing/thirdparty.py
new file mode 100644
index 0000000..1b84514
--- /dev/null
+++ b/aprslib/parsing/thirdparty.py
@@ -0,0 +1,21 @@
+import re
+from aprslib.parsing.__init__ import parse
+from aprslib.exceptions import UnknownFormat
+from aprslib.exceptions import ParseError
+
+__all__ = [
+        'parse_thirdparty',
+        ]
+
+def parse_thirdparty(body):
+    parsed = {'format':'Third party'}
+
+    # Parse sub-packet
+    try:
+        subpacket = parse(body)
+    except (UnknownFormat) as ukf:
+        subpacket = ukf.parsed
+
+    parsed.update({'subpacket':subpacket})
+
+    return('',parsed)