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-rwxr-xr-xcontrib/soap.py188
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diff --git a/contrib/soap.py b/contrib/soap.py
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-#!/usr/bin/python3
-# -*- mode: python-mode; py-indent-tabs-mode: nil -*-
-"""
-/*
- * Copyright (C) 2016 sysmocom s.f.m.c. GmbH
- *
- * All Rights Reserved
- *
- * 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, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-"""
-
-__version__ = "v0.7" # bump this on every non-trivial change
-
-from twisted.internet import defer, reactor
-from twisted_ipa import CTRL, IPAFactory, __version__ as twisted_ipa_version
-from ipa import Ctrl
-from treq import post, collect
-from suds.client import Client
-from functools import partial
-from distutils.version import StrictVersion as V # FIXME: use NormalizedVersion from PEP-386 when available
-import argparse, datetime, signal, sys, os, logging, logging.handlers
-
-# we don't support older versions of TwistedIPA module
-assert V(twisted_ipa_version) > V('0.4')
-
-# keys from OpenBSC openbsc/src/libbsc/bsc_rf_ctrl.c, values SOAP-specific
-oper = { 'inoperational' : 0, 'operational' : 1 }
-admin = { 'locked' : 0, 'unlocked' : 1 }
-policy = { 'off' : 0, 'on' : 1, 'grace' : 2, 'unknown' : 3 }
-
-# keys from OpenBSC openbsc/src/libbsc/bsc_vty.c
-fix = { 'invalid' : 0, 'fix2d' : 1, 'fix3d' : 1 } # SOAP server treats it as boolean but expects int
-
-
-def handle_reply(p, f, log, r):
- """
- Reply handler: takes function p to process raw SOAP server reply r, function f to run for each command and verbosity flag v
- """
- repl = p(r) # result is expected to have both commands[] array and error string (could be None)
- bsc_id = repl.commands[0].split()[0].split('.')[3] # we expect 1st command to have net.0.bsc.666.bts.2.trx.1 location prefix format
- log.info("Received SOAP response for BSC %s with %d commands, error status: %s" % (bsc_id, len(repl.commands), repl.error))
- log.debug("BSC %s commands: %s" % (bsc_id, repl.commands))
- for t in repl.commands: # Process OpenBscCommands format from .wsdl
- (_, m) = Ctrl().cmd(*t.split())
- f(m)
-
-
-class Trap(CTRL):
- """
- TRAP handler (agnostic to factory's client object)
- """
- def ctrl_TRAP(self, data, op_id, v):
- """
- Parse CTRL TRAP and dispatch to appropriate handler after normalization
- """
- (l, r) = v.split()
- loc = l.split('.')
- t_type = loc[-1]
- p = partial(lambda a, i: a[i] if len(a) > i else None, loc) # parse helper
- method = getattr(self, 'handle_' + t_type.replace('-', ''), lambda: "Unhandled %s trap" % t_type)
- method(p(1), p(3), p(5), p(7), r) # we expect net.0.bsc.666.bts.2.trx.1 format for trap prefix
-
- def ctrl_SET_REPLY(self, data, _, v):
- """
- Debug log for replies to our commands
- """
- self.factory.log.debug('SET REPLY %s' % v)
-
- def ctrl_ERROR(self, data, op_id, v):
- """
- We want to know if smth went wrong
- """
- self.factory.log.debug('CTRL ERROR [%s] %s' % (op_id, v))
-
- def connectionMade(self):
- """
- Logging wrapper, calling super() is necessary not to break reconnection logic
- """
- self.factory.log.info("Connected to CTRL@%s:%d" % (self.factory.host, self.factory.port))
- super(CTRL, self).connectionMade()
-
- @defer.inlineCallbacks
- def handle_locationstate(self, net, bsc, bts, trx, data):
- """
- Handle location-state TRAP: parse trap content, build SOAP context and use treq's routines to post it while setting up async handlers
- """
- (ts, fx, lat, lon, height, opr, adm, pol, mcc, mnc) = data.split(',')
- tstamp = datetime.datetime.fromtimestamp(float(ts)).isoformat()
- self.factory.log.debug('location-state@%s.%s.%s.%s (%s) [%s/%s] => %s' % (net, bsc, bts, trx, tstamp, mcc, mnc, data))
- ctx = self.factory.client.registerSiteLocation(bsc, float(lon), float(lat), fix.get(fx, 0), tstamp, oper.get(opr, 2), admin.get(adm, 2), policy.get(pol, 3))
- d = post(self.factory.location, ctx.envelope)
- d.addCallback(collect, partial(handle_reply, ctx.process_reply, self.transport.write, self.factory.log)) # treq's collect helper is handy to get all reply content at once using closure on ctx
- d.addErrback(lambda e, bsc: self.factory.log.critical("HTTP POST error %s while trying to register BSC %s" % (e, bsc)), bsc) # handle HTTP errors
- # Ensure that we run only limited number of requests in parallel:
- yield self.factory.semaphore.acquire()
- yield d # we end up here only if semaphore is available which means it's ok to fire the request without exceeding the limit
- self.factory.semaphore.release()
-
- def handle_notificationrejectionv1(self, net, bsc, bts, trx, data):
- """
- Handle notification-rejection-v1 TRAP: just an example to show how more message types can be handled
- """
- self.factory.log.debug('notification-rejection-v1@bsc-id %s => %s' % (bsc, data))
-
-
-class TrapFactory(IPAFactory):
- """
- Store SOAP client object so TRAP handler can use it for requests
- """
- location = None
- log = None
- semaphore = None
- client = None
- host = None
- port = None
- def __init__(self, host, port, proto, semaphore, log, wsdl=None, location=None):
- self.host = host # for logging only,
- self.port = port # seems to be no way to get it from ReconnectingClientFactory
- self.log = log
- self.semaphore = semaphore
- soap = Client(wsdl, location=location, nosend=True) # make async SOAP client
- self.location = location.encode() if location else soap.wsdl.services[0].ports[0].location # necessary for dispatching HTTP POST via treq
- self.client = soap.service
- level = self.log.getEffectiveLevel()
- self.log.setLevel(logging.WARNING) # we do not need excessive debug from lower levels
- super(TrapFactory, self).__init__(proto, self.log)
- self.log.setLevel(level)
- self.log.debug("Using IPA %s, SUDS client: %s" % (Ctrl.version, soap))
-
-
-def reloader(path, script, log, dbg1, dbg2, signum, _):
- """
- Signal handler: we have to use execl() because twisted's reactor is not restartable due to some bug in twisted implementation
- """
- log.info("Received Signal %d - restarting..." % signum)
- if signum == signal.SIGUSR1 and dbg1 not in sys.argv and dbg2 not in sys.argv:
- sys.argv.append(dbg1) # enforce debug
- if signum == signal.SIGUSR2 and (dbg1 in sys.argv or dbg2 in sys.argv): # disable debug
- if dbg1 in sys.argv:
- sys.argv.remove(dbg1)
- if dbg2 in sys.argv:
- sys.argv.remove(dbg2)
- os.execl(path, script, *sys.argv[1:])
-
-
-if __name__ == '__main__':
- p = argparse.ArgumentParser(description='Proxy between given SOAP service and Osmocom CTRL protocol.')
- p.add_argument('-v', '--version', action='version', version=("%(prog)s " + __version__))
- p.add_argument('-p', '--port', type=int, default=4250, help="Port to use for CTRL interface, defaults to 4250")
- p.add_argument('-c', '--ctrl', default='localhost', help="Adress to use for CTRL interface, defaults to localhost")
- p.add_argument('-w', '--wsdl', required=True, help="WSDL URL for SOAP")
- p.add_argument('-n', '--num', type=int, default=5, help="Max number of concurrent HTTP requests to SOAP server")
- p.add_argument('-d', '--debug', action='store_true', help="Enable debug log")
- p.add_argument('-o', '--output', action='store_true', help="Log to STDOUT in addition to SYSLOG")
- p.add_argument('-l', '--location', help="Override location found in WSDL file (don't use unless you know what you're doing)")
- args = p.parse_args()
-
- log = logging.getLogger('CTRL2SOAP')
- if args.debug:
- log.setLevel(logging.DEBUG)
- else:
- log.setLevel(logging.INFO)
- log.addHandler(logging.handlers.SysLogHandler('/dev/log'))
- if args.output:
- log.addHandler(logging.StreamHandler(sys.stdout))
-
- reboot = partial(reloader, os.path.abspath(__file__), os.path.basename(__file__), log, '-d', '--debug') # keep in sync with add_argument() call above
- signal.signal(signal.SIGHUP, reboot)
- signal.signal(signal.SIGQUIT, reboot)
- signal.signal(signal.SIGUSR1, reboot) # restart and enabled debug output
- signal.signal(signal.SIGUSR2, reboot) # restart and disable debug output
-
- log.info("SOAP proxy %s starting with PID %d ..." % (__version__, os.getpid()))
- reactor.connectTCP(args.ctrl, args.port, TrapFactory(args.ctrl, args.port, Trap, defer.DeferredSemaphore(args.num), log, args.wsdl, args.location))
- reactor.run()