wc_query.py

import suds
import sys
import xml
import argparse
import getpass


if len(sys.argv) < 2:
    print "You haven't specified any arguments. Use -h to get more details on how to use this command."
    sys.exit(1)


parser = argparse.ArgumentParser()
parser.add_argument('--username', '-u', type=str, default=None, help='Username for the login to the WebCTRL server')
parser.add_argument('--password', '-p', type=str, default=None, help='Password for the login to the WebCTRL server')
parser.add_argument('--node', '-n', type=str, default=None,
    help='Path to the point or node whose children you want to retrieve. Start querying at the lowest level with "-n /trees/geographic"')
parser.add_argument('-url', type=str, default='https://webctrl.rz-berlin.mpg.de',
    help="URL of the WebCTRL server as e.g. http://google.de")
args = parser.parse_args()


if args.username is None:
    print 'No user name specified. Login to WebCTRL needs a user name and password. Check all options for this command via -h'
    sys.exit(1)
else:
    username = args.username
if args.password is None:
    password = getpass.getpass('No password specified via -p. Please enter your WebCTRL login password: ')
else:
    password = args.password
if args.node is None:
    print 'No path to a node specified. Check all options for this command via -h'
    sys.exit(1)
if args.url is None:
    print 'No URL given. Specify the URL to the WebCTRL server analogous to http://google.de'
    sys.exit(1)
else:
    wsdlFile = args.url + '/_common/webservices/Eval?wsdl'


try:
    client = suds.client.Client(wsdlFile, username=username, password=password)
except AttributeError:
    print 'Error: Incorrect username and/or password'
except xml.sax._exceptions.SAXParseException:
    print 'Error: Incorrect/Misspelled WSDL file. It should be: http(s)://URL?wsdl'
    sys.exit(1)
except:
    print("Unexpected error:", sys.exc_info()[0])
    print('Perhaps your URL to the WSDL file is not correct.')
    sys.exit(1)


try:
    print 'Children of "' + args.node + '":'
    print client.service.getChildren(args.node)
except suds.WebFault as fault:
    print fault
    sys.exit(1)


sys.exit(0)