beinc_poller added

1 files changed, 182 insertions, 0 deletions

diff --git a/beinc_poller.py b/beinc_poller.py
new file mode 100755
index 0000000..aba6353
--- /dev/null
+++ b/beinc_poller.py
@@ -0,0 +1,182 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# Blackmore's Enhanced IRC-Notification Collection (BEINC) v1.0
+# Copyright (C) 2013-2014 Simeon Simeonov
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+import argparse
+import errno
+import getpass
+import httplib
+import json
+import os
+import sched
+import socket
+import ssl
+import sys
+import time
+import urllib
+import urllib2
+
+try:
+    import pynotify
+except ImportError as e:
+    sys.stderr.write('A working pynotify library is required by BEINC-poller\n')
+    sys.exit(1)
+
+
+__author__ = 'Simeon Simeonov'
+__version__ = '1.0'
+__license__ = 'GPL3'
+
+
+class ValidHTTPSConnection(httplib.HTTPConnection):
+    """
+    Implements a simple CERT verification functionality
+    """
+
+    default_port = httplib.HTTPS_PORT
+
+    def __init__(self, *args, **kwargs):
+        httplib.HTTPConnection.__init__(self, *args, **kwargs)
+
+    def connect(self):
+        sock = socket.create_connection((self.host, self.port),
+                                        self.timeout, self.source_address)
+        if self._tunnel_host:
+            self.sock = sock
+            self._tunnel()
+        self.sock = ssl.wrap_socket(sock,
+                                    ca_certs=global_beinc_cert_file,
+                                    cert_reqs=ssl.CERT_REQUIRED)
+
+
+class ValidHTTPSHandler(urllib2.HTTPSHandler):
+    """
+    Implements a simple CERT verification functionality
+    """
+
+    def https_open(self, req):
+        return self.do_open(ValidHTTPSConnection, req)
+
+
+def poll_notifications(scheduler, args):
+    """
+    """
+    try:
+        post_values = {'password': args.password}
+        data = urllib.urlencode(post_values)
+        req = urllib2.Request(args.url, data)
+        if args.cert:  # check for cert validity
+            global global_beinc_cert_file  # ugly hack
+            global_beinc_cert_file = args.cert
+            opener = urllib2.build_opener(ValidHTTPSHandler)
+            response = opener.open(req)
+        else:  # ... or don't
+            response = urllib2.urlopen(req)
+        res_code = response.code
+        res_str = response.read()
+        if res_code == 200 and args.debug:
+            print('Server responded: OK')
+            print('Body:\n{0}'.format(res_str))
+        res_list = json.loads(res_str)
+        print(type(res_list))
+        response.close()
+        scheduler.enter(args.frequency,
+                        1, 
+                        poll_notifications,
+                        (scheduler, args))
+    except urllib2.HTTPError as e:
+        sys.stderr.write('BEINC-server error ({0} - {1})\n'.format(e.code,
+                                                                   e.reason))
+    except Exception as e:
+        sys.stderr.write('BEINC-poller error: {0}\n'.format(e))
+        sys.exit(errno.EPERM)
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description='The following options are available')
+    parser.add_argument(
+        'url',
+        metavar='URL',
+        type=str,
+        help='BEINC destination URL')
+    parser.add_argument(
+        '-c', '--cert-file',
+        metavar='FILE',
+        type=str,
+        dest='cert',
+        default='',
+        help='BEINC CA-cert to check the server-cert against (default: None)')
+    parser.add_argument(
+        '-d',
+        action='store_true',
+        dest='daemonize',
+        default=False,
+        help='Run the poller-process in the background')
+    parser.add_argument(
+        '-D', '--debug',
+        action='store_true',
+        dest='debug',
+        default=False,
+        help='Run the poller-process in debug-mode (disables daemonize)')
+    parser.add_argument(
+        '-f', '--frequency',
+        metavar='SECONDS',
+        type=int,
+        dest='frequency',
+        default=10,
+        help='Polling frequency in seconds (default: 10)')
+    parser.add_argument(
+        '-p', '--password',
+        metavar='PASSWORD',
+        type=str,
+        dest='password',
+        default='',
+        help='BEINC taget-password (default & recommended: prompt for passwd)')
+    parser.add_argument(
+        '-t', '--osd-timeout',
+        metavar='MILLISECONDS',
+        type=int,
+        dest='osd_timeout',
+        default=5000,
+        help='OSD timeout (default: 5000)')
+    parser.add_argument(
+        '-v', '--version',
+        action='version',
+        version='%(prog)s {0}'.format(__version__),
+        help='display program-version and exit')
+    args = parser.parse_args()
+    if not args.password:
+        try:
+            args.password = getpass.getpass()
+        except Exception as e:
+            sys.stderr.write('Prompt terminated\n')
+            sys.exit(errno.EACCES)
+
+    if not pynotify.init('BEINC Notify'):
+        sys.stderr.write('There was a problem with libnotify\n')
+        sys.exit(1)
+
+    sc = sched.scheduler(time.time, time.sleep)
+    sc.enter(args.frequency, 1, poll_notifications, (sc, args))
+    sc.run()
+
+
+if __name__ == '__main__':
+    main()