(ipsec) add list pool leases script (https://github.com/opnsense/core/issues/139)

src/opnsense/scripts/ipsec/list_leases.py

+#!/usr/local/bin/python2.7
+
+"""
+    Copyright (c) 2016 Ad Schellevis
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+     this list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright
+     notice, this list of conditions and the following disclaimer in the
+     documentation and/or other materials provided with the distribution.
+
+    THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+    INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+    AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+    AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+    OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    --------------------------------------------------------------------------------------
+    list ipsec pools and leases
+"""
+
+import tempfile
+import subprocess
+import os
+import ujson
+
+result = dict()
+if __name__ == '__main__':
+    with tempfile.NamedTemporaryFile() as output_stream:
+        subprocess.call(['/usr/local/sbin/ipsec', 'leases'], stdout=output_stream, stderr=open(os.devnull, 'wb'))
+        output_stream.seek(0)
+        data = output_stream.read().strip()
+        current_pool=None
+        for line in data.split('\n'):
+            if line.find('Leases in pool') > -1:
+                current_pool = line.split("'")[1]
+                result[current_pool] = {'items': []}
+                result[current_pool]['usage'] = line.split(',')[1].split(':')[1].strip()
+                result[current_pool]['online'] = line.split(',')[2].strip().split(' ')[0]
+            elif current_pool is not None and line.find('line') > -1:
+                lease = {'address': line.split()[0], 'status': line.split()[1], 'user': line.split("'")[1]}
+                result[current_pool] ['items'].append(lease)
+
+print(ujson.dumps(result))