def findCredential():
    """
    Follow the usual path that GSI libraries would
    follow to find a valid proxy credential but
    also allow an end entity certificate to be used
    along with an unencrypted private key if they
    are pointed to by X509_USER_CERT and X509_USER_KEY
    since we expect this will be the output from
    the eventual ligo-login wrapper around
    kinit and then myproxy-login.
    """

    # use X509_USER_PROXY from environment if set
    if os.environ.has_key('X509_USER_PROXY'):
        filePath = os.environ['X509_USER_PROXY']
        if validateProxy(filePath):
            return filePath, filePath
        else:
            RFCproxyUsage()
            sys.exit(1)

    # use X509_USER_CERT and X509_USER_KEY if set
    if os.environ.has_key('X509_USER_CERT'):
        if os.environ.has_key('X509_USER_KEY'):
            certFile = os.environ['X509_USER_CERT']
            keyFile = os.environ['X509_USER_KEY']
            return certFile, keyFile

    # search for proxy file on disk
    uid = os.getuid()
    path = "/tmp/x509up_u%d" % uid

    if os.access(path, os.R_OK):
        if validateProxy(path):
            return path, path
        else:
            RFCproxyUsage()
            sys.exit(1)

    # if we get here could not find a credential
    RFCproxyUsage()
    sys.exit(1)
def findCredential ( ) : if os . environ . has_key ( 'X509_USER_PROXY' ) : filePath = os . environ [ 'X509_USER_PROXY' ] if validateProxy ( filePath ) : return filePath , filePath else : RFCproxyUsage ( ) sys . exit ( 1 ) if os . environ . has_key ( 'X509_USER_CERT' ) : if os . environ . has_key ( 'X509_USER_KEY' ) : certFile = os . environ [ 'X509_USER_CERT' ] keyFile = os . environ [ 'X509_USER_KEY' ] return certFile , keyFile uid = os . getuid ( ) path = "/tmp/x509up_u%d" % uid if os . access ( path , os . R_OK ) : if validateProxy ( path ) : return path , path else : RFCproxyUsage ( ) sys . exit ( 1 ) RFCproxyUsage ( ) sys . exit ( 1 )
Follow the usual path that GSI libraries would
    follow to find a valid proxy credential but
    also allow an end entity certificate to be used
    along with an unencrypted private key if they
    are pointed to by X509_USER_CERT and X509_USER_KEY
    since we expect this will be the output from
    the eventual ligo-login wrapper around
    kinit and then myproxy-login.