Header Variables :
hsource-->null-->null
messageid-->null-->null
hdevice-->null-->null
hdatetime-->null-->null
hseverity-->null-->null

Message Variables :
message_body-->message.body-->Transient
saddr-->ip.src-->None
application-->server-->Transient
web_host-->alias.host-->None
subject-->subject-->Transient
rulename-->rule.name-->Transient
sport-->ip.srcport-->Transient
severity-->severity-->Transient
policyname-->policy.name-->None
url-->url-->Transient
obj_type-->obj.type-->None
info-->index-->Transient
id-->reference.id-->None
username-->user.dst-->None
webpage-->web.page-->Transient
network_service-->network.service-->Transient
action-->action-->None
context-->context-->Transient
obj_name-->obj.name-->None
content_type-->content.type-->Transient
