emulabclient.py 2.61 KB
Newer Older
Russ Fish's avatar
Russ Fish committed
1 2 3
#! /usr/bin/env python
#
# Copyright (c) 2004 University of Utah and the Flux Group.
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22
# 
# {{{EMULAB-LICENSE
# 
# This file is part of the Emulab network testbed software.
# 
# This file is free software: you can redistribute it and/or modify it
# under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or (at
# your option) any later version.
# 
# This file 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 Affero General Public
# License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with this file.  If not, see <http://www.gnu.org/licenses/>.
# 
# }}}
Russ Fish's avatar
Russ Fish committed
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
#
import sys
import socket
import os
import popen2
import getopt
import string

# Maximum size of an NS file that the server will accept. 
MAXNSFILESIZE = (1024 * 512)

#
# This class defines a simple structure to return back to the caller.
# It includes a basic response code (success, failure, badargs, etc),
# as well as a return "value" which can be any valid datatype that can
# be represented in XML (int, string, hash, float, etc). You can also
# send back some output (a string with embedded newlines) to print out
# to the user.
#
# Note that XMLRPC does not actually return a "class" to the caller; It gets
# converted to a hashed array (Python Dictionary), but using a class gives
# us a ready made constructor. 
#
RESPONSE_SUCCESS        = 0
RESPONSE_BADARGS        = 1
RESPONSE_ERROR          = 2
RESPONSE_FORBIDDEN      = 3
RESPONSE_BADVERSION     = 4
RESPONSE_SERVERERROR    = 5
RESPONSE_TOOBIG         = 6
RESPONSE_REFUSED        = 7  # Emulab is down, try again later.

class EmulabResponse:
    def __init__(self, code, value=0, output=""):
        self.code     = code            # A RESPONSE code
        self.value    = value           # A return value; any valid XML type.
        self.output   = output          # Pithy output to print
        return

#
# Read an nsfile and return a single string. 
#
def readnsfile(nsfilename, debug):
    nsfilestr  = ""
    try:
        fp = os.open(nsfilename, os.O_RDONLY)

        while True:
	    str = os.read(fp, 1024)

            if not str:
                break
            nsfilestr = nsfilestr + str
            pass

        os.close(fp)

    except:
        if debug:
            print "%s:%s" % (sys.exc_type, sys.exc_value)
            pass

        print "batchexp: Cannot read NS file '" + nsfilename + "'"
        return None
        pass

    return nsfilestr