scripts/vm/hypervisor/xenserver/storagePlugin

#!/usr/bin/python
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
# 
#   http://www.apache.org/licenses/LICENSE-2.0
# 
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.

# Version @VERSION@
#
# A plugin for executing script needed by vmops cloud 

import os, sys, time
import XenAPIPlugin
sys.path.extend(["/opt/xensource/sm/", "/usr/lib/xcp/sm/", "/usr/local/sbin/", "/sbin/"])
import util
import base64
import socket
import stat
import tempfile
import subprocess
import zlib
import urllib2
import traceback

def echo(fn):
    def wrapped(*v, **k):
        name = fn.__name__
        util.SMlog("#### xen plugin enter  %s ####" % name )
        res = fn(*v, **k)
        util.SMlog("#### xen plugin exit  %s ####" % name )
        return res
    return wrapped

@echo
def downloadTemplateFromUrl(session, args):
    destPath = args["destPath"]
    srcUrl = args["srcUrl"]
    try:
        template = urllib2.urlopen(srcUrl)
        destFile = open(destPath, "wb")
        destFile.write(template.read())
        destFile.close()
        return "success"
    except:
        util.SMlog("exception: " + str(sys.exc_info()))
        return ""
    
@echo
def getTemplateSize(session, args):
   srcUrl = args["srcUrl"]
   try:
       template = urllib2.urlopen(srcUrl)
       headers = template.info()
       return str(headers["Content-Length"])
   except:
       return ""
if __name__ == "__main__":
    XenAPIPlugin.dispatch({"downloadTemplateFromUrl": downloadTemplateFromUrl
                           ,"getTemplateSize": getTemplateSize
                          })