Revision d368ec0c snf-cyclades-app/synnefo/api/util.py

b/snf-cyclades-app/synnefo/api/util.py
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from time import time
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from traceback import format_exc
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from wsgiref.handlers import format_date_time
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from ipaddr import IPNetwork
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import dateutil.parser


  		





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        raise ItemNotFound('Network not found.')


  		





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def validate_network_subnet(subnet):


  		





  
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    try:


  		





  
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        # Use strict option to not all subnets with host bits set


  		





  
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        network = IPNetwork(subnet, strict=True)


  		





  
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    except ValueError:


  		





  
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        raise BadRequest("Invalid network subnet")


  		





  
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    # Check that network size is allowed!


  		





  
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    if not validate_network_size(network.prefixlen):


  		





  
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        raise OverLimit("Unsupported network size")


  		





  
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def validate_network_size(cidr_block):


  		





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    """Return True if network size is allowed."""


  		





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    return cidr_block <= 29 and cidr_block > MAX_CIDR_BLOCK


  		












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