+import calendar
+import datetime
+import os
+import re
+import sys
+import time
+
+from PyQt4.QtCore import *
+from sface.config import config
+from sface.sfiprocess import SfiProcess
+
+class SfiRenewer(QObject):
+ def __init__(self, hrn, newExpiration, parent=None):
+ QObject.__init__(self, parent)
+ self.hrn = hrn
+ self.newExpiration = newExpiration
+
+ self.renewProcess = SfiProcess(self)
+ self.connect(self.renewProcess, SIGNAL('finished()'), self.finishedGetRecord)
+ self.renewProcess.getRecord(hrn=config.getSlice(), filename="/tmp/slicerecord")
+
+ def finishedGetRecord(self):
+ f = open("/tmp/slicerecord", "r")
+ data = f.read()
+ f.close()
+
+ # find the expiration time
+ exp = re.compile('expires="[^"]*"')
+ if exp.search(data)==None:
+ # didn't find it
+ self.emitFinished("failure", "failed to find expiration in slice record")
+ return
+
+ # change the expiration time
+ delta = 24*60*60 # always extend the slice by one extra day to cover slop for time zone differences
+ data = exp.sub('expires="' + str(calendar.timegm(self.newExpiration.timetuple())+delta) + '"', data)
+
+ open("/tmp/slicerecord", "w").write(data)
+
+ self.disconnect(self.renewProcess, SIGNAL('finished()'), self.finishedGetRecord)
+ self.connect(self.renewProcess, SIGNAL('finished()'), self.finishedUpdateRecord)
+
+ self.renewProcess.updateRecord("/tmp/slicerecord")
+
+ def finishedUpdateRecord(self):
+ # we have to force sfi.py to download an updated slice credential
+ sliceCredName = os.path.expanduser("~/.sfi/slice_" + self.hrn.split(".")[-1] + ".cred")
+ if os.path.exists(sliceCredName):
+ os.remove(sliceCredName)
+
+ open("/tmp/expiration", "w").write(self.newExpiration.strftime("%Y-%m-%dT%H:%M:%SZ"))
+
+ # call renewSlivers on the aggregate
+ self.disconnect(self.renewProcess, SIGNAL('finished()'), self.finishedUpdateRecord)
+ self.connect(self.renewProcess, SIGNAL('finished()'), self.finishedRenewSlivers)
+ self.renewProcess.renewSlivers(self.newExpiration.strftime("%Y-%m-%dT%H:%M:%SZ"))
+
+ def finishedRenewSlivers(self):
+ self.emitFinished("success")
+
+ def emitFinished(self, status, statusMsg=None):
+ self.status = status
+ self.statusMsg = statusMsg
+ self.emit(SIGNAL("finished()"))
+