nagixsc_conf2http.py

   1 #!/usr/bin/python
   2
   3 import BaseHTTPServer
   4 import ConfigParser
   5 import base64
   6 import optparse
   7 import os
   8 import re
   9 import subprocess
  10 import sys
  11
  12 try:
  13         from hashlib import md5
  14 except ImportError:
  15         from md5 import md5
  16
  17 ##############################################################################
  18
  19 parser = optparse.OptionParser()
  20
  21 parser.add_option('-c', '', dest='cfgfile', help='Config file')
  22
  23 parser.set_defaults(cfgfile='conf2http.cfg')
  24
  25 (options, args) = parser.parse_args()
  26
  27 cfgread = ConfigParser.SafeConfigParser()
  28 cfgread.optionxform = str # We need case-sensitive options
  29 cfg_list = cfgread.read(options.cfgfile)
  30
  31 if cfg_list == []:
  32         print 'Config file "%s" could not be read!' % options.cfgfile
  33         sys.exit(1)
  34
  35 config = {}
  36 try:
  37         config['ip']   = cfgread.get('server', 'ip')
  38         config['port'] = cfgread.getint('server', 'port')
  39
  40         config['conf_dir']         = cfgread.get('server', 'conf_dir')
  41         config['conf2xml_cmdline'] = cfgread.get('server', 'conf2xml_cmdline')
  42
  43 except ConfigParser.NoOptionError, e:
  44         print 'Config file error: %s ' % e
  45         sys.exit(1)
  46
  47 users = {}
  48 for u in cfgread.options('users'):
  49         users[u] = cfgread.get('users', u)
  50
  51 ##############################################################################
  52
  53 class Conf2HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
  54
  55         def http_error(self, code, output):
  56                 self.send_response(code)
  57                 self.send_header('Content-Type', 'text/plain')
  58                 self.end_headers()
  59                 self.wfile.write(output)
  60                 return
  61
  62
  63         def do_GET(self):
  64                 cmdline = config['conf2xml_cmdline']
  65
  66                 path = self.path.split('/')
  67
  68                 # Check Basic Auth
  69                 try:
  70                         authdata = base64.b64decode(self.headers['Authorization'].split(' ')[1]).split(':')
  71                         if not users[authdata[0]] == md5(authdata[1]).hexdigest():
  72                                 raise Exception
  73                 except:
  74                         self.send_response(401)
  75                         self.send_header('WWW-Authenticate', 'Basic realm="Nag(ix)SC Pull"')
  76                         self.send_header('Content-Type', 'text/plain')
  77                         self.end_headers()
  78                         self.wfile.write('Sorry! No action without login!')
  79                         return
  80
  81
  82                 if len(path) >= 4:
  83                         service = path[3]
  84                 else:
  85                         service = ''
  86
  87                 if len(path) >= 3:
  88                         host = path[2]
  89                 else:
  90                         host = ''
  91
  92                 if len(path) >= 2:
  93                         configfile = path[1]
  94                 else:
  95                         configfile =''
  96
  97                 if re.search('\.\.', configfile):
  98                         self.http_error(500, 'Found ".." in config file name')
  99                         return
 100                 if configfile and not re.search('^[a-zA-Z0-9-_\.]+$', configfile):
 101                         self.http_error(500, 'Config file name contains invalid characters')
 102                         return
 103
 104                 if configfile:
 105                         configfile += '.conf'
 106                         cmdline    += ' -c ' + os.path.join(config['conf_dir'], configfile)
 107
 108                 if host:
 109                         cmdline += ' -H %s' % host
 110                         if service:
 111                                 cmdline += ' -D %s' % service
 112
 113                 try:
 114                         cmd     = subprocess.Popen(cmdline.split(' '), stdout=subprocess.PIPE)
 115                         output  = cmd.communicate()[0].rstrip()
 116                         retcode = cmd.returncode
 117                 except OSError:
 118                         self.http_error(500, 'Could not execute "%s"' % cmdline)
 119                         return
 120
 121                 if retcode == 0:
 122                         self.send_response(200)
 123                         self.send_header('Content-Type', 'text/xml')
 124                         self.end_headers()
 125                         self.wfile.write(output)
 126                 else:
 127                         self.http_error(500, output)
 128
 129                 return
 130
 131
 132
 133 def main():
 134         try:
 135                 server = BaseHTTPServer.HTTPServer((config['ip'], config['port']), Conf2HTTPHandler)
 136                 server.serve_forever()
 137         except:
 138                 server.socket.close()
 139
 140 if __name__ == '__main__':
 141         main()
 142