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from crab_logger import Logger
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from crab_exceptions import *
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from crab_util import *
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import common
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import urllib
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import os, time
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class ServerConfig:
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def __init__(self, serverName):
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common.logger.debug(5,'Calling ServerConfig')
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self.url ='https://cmsweb.cern.ch/crabconf/files/'
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if 'server_' in string.lower(serverName):
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self.configFileName = '%s.conf'%string.lower(serverName)
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else:
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self.configFileName = 'server_%s.conf'%string.lower(serverName)
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localCfg = self.getConfig_()
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# parse the localCfg file
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f = open(localCfg, 'r')
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l = ''.join( f.readlines() )
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f.close()
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if not l:
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l = str('{}')
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self.theConfig = eval(l)
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pass
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def config(self):
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return self.theConfig
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def downloadFile(self, url, destination):
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try:
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f = urllib.urlopen(url)
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data = f.read()
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if '<!' in data[:2]:
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raise IOError
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ff = open(destination, 'w')
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ff.write(data)
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ff.close()
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except IOError:
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raise CrabException('Cannot download config file '+destination+' from '+self.url)
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def getConfig_(self):
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if not os.path.exists(self.configFileName):
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url = self.url+self.configFileName
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common.logger.message('Downloading config files for '+url)
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self.downloadFile( url, self.configFileName)
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else:
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statinfo = os.stat(self.configFileName)
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## if the file is older then 12 hours it is re-downloaded to update the configuration
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oldness = 12*3600
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if (time.time() - statinfo.st_ctime) > oldness:
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url = self.url+self.configFileName
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common.logger.message('Downloading config files for '+url)
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self.downloadFile( url, self.configFileName)
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pass
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return os.getcwd()+'/'+self.configFileName
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