232 lines
8.1 KiB
Python
Executable File
232 lines
8.1 KiB
Python
Executable File
#!/usr/bin/python
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# -*- encoding: utf-8 -*-
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from __future__ import with_statement
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import base64
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import ConfigParser
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import optparse
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import MySQLdb
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import re
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import SimpleXMLRPCServer
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import socket
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import sys
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import uuid
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class AsteriskOpenSimServerException(Exception):
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pass
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class AsteriskOpenSimServer(SimpleXMLRPCServer.SimpleXMLRPCServer):
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'''Subclassed SimpleXMLRPCServer to be able to muck around with the socket options.
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'''
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def __init__(self, config):
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baseURL = config.get('xmlrpc', 'baseurl')
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match = reURLParser.match(baseURL)
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if not match:
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raise AsteriskOpenSimServerException('baseURL "%s" is not a well-formed URL' % (baseURL))
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host = 'localhost'
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port = 80
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path = None
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if match.group('host'):
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host = match.group('host')
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port = int(match.group('port'))
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else:
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host = match.group('hostonly')
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self.__host = host
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self.__port = port
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SimpleXMLRPCServer.SimpleXMLRPCServer.__init__(self,(host, port))
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def host(self):
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return self.__host
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def port(self):
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return self.__port
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def server_bind(self):
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self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
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SimpleXMLRPCServer.SimpleXMLRPCServer.server_bind(self)
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class AsteriskFrontend(object):
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'''AsteriskFrontend serves as an XmlRpc function dispatcher.
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'''
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def __init__(self, config, db):
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'''Constructor to take note of the AsteriskDB object.
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'''
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self.__db = db
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try:
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self.__debug = config.getboolean('dispatcher', 'debug')
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except (ConfigParser.NoOptionError, ConfigParser.NoSectionError):
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self.__debug = False
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def account_update(self, request):
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'''update (or create) the SIP account data in the Asterisk RealTime DB.
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OpenSim's AsteriskVoiceModule will call this method each
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time it receives a ProvisionVoiceAccount request.
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'''
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print '[asterisk-opensim] account_update: new request'
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for p in ['admin_password', 'username', 'password']:
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if p not in request:
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print '[asterisk-opensim] account_update: failed: missing password'
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return { 'success': 'false', 'error': 'missing parameter "%s"' % (p)}
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# turn base64 binary UUID into proper UUID
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user = request['username'].partition('@')[0]
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user = user.lstrip('x').replace('-','+').replace('_','/')
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user = uuid.UUID(bytes = base64.standard_b64decode(user))
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if self.__debug: print '[asterisk-opensim]: account_update: user %s' % user
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error = self.__db.AccountUpdate(user = user, password = request['password'])
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if error:
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print '[asterisk-opensim]: DB.AccountUpdate failed'
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return { 'success': 'false', 'error': error}
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print '[asterisk-opensim] account_update: done'
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return { 'success': 'true'}
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def region_update(self, request):
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'''update (or create) a VoIP conference call for a region.
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OpenSim's AsteriskVoiceModule will call this method each time it
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receives a ParcelVoiceInfo request.
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'''
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print '[asterisk-opensim] region_update: new request'
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for p in ['admin_password', 'region']:
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if p not in request:
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print '[asterisk-opensim] region_update: failed: missing password'
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return { 'success': 'false', 'error': 'missing parameter "%s"' % (p)}
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region = request['region'].partition('@')[0]
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if self.__debug: print '[asterisk-opensim]: region_update: region %s' % user
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error = self.__db.RegionUpdate(region = region)
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if error:
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print '[asterisk-opensim]: DB.RegionUpdate failed'
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return { 'success': 'false', 'error': error}
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print '[asterisk-opensim] region_update: done'
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return { 'success': 'true' }
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class AsteriskDBException(Exception):
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pass
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class AsteriskDB(object):
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'''AsteriskDB maintains the connection to Asterisk's MySQL database.
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'''
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def __init__(self, config):
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# configure from config object
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self.__server = config.get('mysql', 'server')
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self.__database = config.get('mysql', 'database')
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self.__user = config.get('mysql', 'user')
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self.__password = config.get('mysql', 'password')
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try:
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self.__debug = config.getboolean('mysql', 'debug')
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self.__debug_t = config.getboolean('mysql-templates', 'debug')
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except ConfigParser.NoOptionError:
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self.__debug = False
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self.__tablesTemplate = self.__loadTemplate(config, 'tables')
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self.__userTemplate = self.__loadTemplate(config, 'user')
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self.__regionTemplate = self.__loadTemplate(config, 'region')
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self.__mysql = MySQLdb.connect(host = self.__server, db = self.__database,
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user = self.__user, passwd = self.__password)
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if self.__assertDBExists():
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raise AsteriskDBException('could not initialize DB')
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def __loadTemplate(self, config, templateName):
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template = config.get('mysql-templates', templateName)
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t = ''
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with open(template, 'r') as templateFile:
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for line in templateFile:
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line = line.rstrip('\n')
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t += line
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return t.split(';')
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def __assertDBExists(self):
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'''Assert that DB tables exist.
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'''
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try:
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cursor = self.__mysql.cursor()
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for sql in self.__tablesTemplate[:]:
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if not sql: continue
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sql = sql % { 'database': self.__database }
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if self.__debug: print 'AsteriskDB.__assertDBExists: %s' % sql
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cursor.execute(sql)
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cursor.fetchall()
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cursor.close()
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except MySQLdb.Error, e:
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if self.__debug: print 'AsteriskDB.__assertDBExists: Error %d: %s' % (e.args[0], e.args[1])
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return e.args[1]
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return None
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def AccountUpdate(self, user, password):
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print 'AsteriskDB.AccountUpdate: user %s' % (user)
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try:
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cursor = self.__mysql.cursor()
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for sql in self.__userTemplate[:]:
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if not sql: continue
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sql = sql % { 'database': self.__database, 'username': user, 'password': password }
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if self.__debug_t: print 'AsteriskDB.AccountUpdate: sql: %s' % sql
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cursor.execute(sql)
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cursor.fetchall()
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cursor.close()
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except MySQLdb.Error, e:
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if self.__debug: print 'AsteriskDB.RegionUpdate: Error %d: %s' % (e.args[0], e.args[1])
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return e.args[1]
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return None
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def RegionUpdate(self, region):
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print 'AsteriskDB.RegionUpdate: region %s' % (region)
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try:
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cursor = self.__mysql.cursor()
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for sql in self.__regionTemplate[:]:
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if not sql: continue
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sql = sql % { 'database': self.__database, 'regionname': region }
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if self.__debug_t: print 'AsteriskDB.RegionUpdate: sql: %s' % sql
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cursor.execute(sql)
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res = cursor.fetchall()
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except MySQLdb.Error, e:
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if self.__debug: print 'AsteriskDB.RegionUpdate: Error %d: %s' % (e.args[0], e.args[1])
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return e.args[1]
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return None
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reURLParser = re.compile(r'^http://((?P<host>[^/]+):(?P<port>\d+)|(?P<hostonly>[^/]+))/', re.IGNORECASE)
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# main
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if __name__ == '__main__':
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parser = optparse.OptionParser()
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parser.add_option('-c', '--config', dest = 'config', help = 'config file', metavar = 'CONFIG')
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(options, args) = parser.parse_args()
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if not options.config:
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parser.error('missing option config')
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sys.exit(1)
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config = ConfigParser.ConfigParser()
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config.readfp(open(options.config))
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server = AsteriskOpenSimServer(config)
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server.register_introspection_functions()
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server.register_instance(AsteriskFrontend(config, AsteriskDB(config)))
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# get cracking
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print '[asterisk-opensim] server ready on %s:%d' % (server.host(), server.port())
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server.serve_forever()
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sys.exit(0)
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