def checkFilterParameters(data):
"""Checks and extracts filter rule parameters from a request body.
@return: the checked parameters: (priority, predicates, action).
"""
if not isinstance(data, dict):
raise http.HttpBadRequest("Invalid body contents, not a dictionary")
# Forbid unknown parameters
allowed_params = set(["priority", "predicates", "action", "reason"])
for param in data:
if param not in allowed_params:
raise http.HttpBadRequest(
"Invalid body parameters: filter rule doesn't"
" support the parameter '%s'" % param)
priority = baserlib.CheckParameter(data,
"priority",
exptype=int,
default=0)
# We leave the deeper check into the predicates list to the server.
predicates = baserlib.CheckParameter(data,
"predicates",
exptype=list,
default=[])
# The action can be a string or a list; we leave the check to the server.
action = baserlib.CheckParameter(data, "action", default="CONTINUE")
reason = baserlib.CheckParameter(data, "reason", exptype=list, default=[])
return (priority, predicates, action, reason)
def _ParseInstanceReinstallRequest(name, data):
"""Parses a request for reinstalling an instance.
"""
if not isinstance(data, dict):
raise http.HttpBadRequest("Invalid body contents, not a dictionary")
ostype = baserlib.CheckParameter(data, "os", default=None)
start = baserlib.CheckParameter(data, "start", exptype=bool, default=True)
osparams = baserlib.CheckParameter(data, "osparams", default=None)
ops = [
opcodes.OpInstanceShutdown(instance_name=name),
opcodes.OpInstanceReinstall(instance_name=name,
os_type=ostype,
osparams=osparams),
]
if start:
ops.append(opcodes.OpInstanceStartup(instance_name=name, force=False))
return ops
