#Modified by Keegan Jacobson
#Source https://devcentral.f5.com/codeshare?sid=500
when RULE_INIT {
# Cookie name prefix
set static::ck_pattern "BIGipServer*"
# Log debug to /var/log/ltm? 1=yes, 0=no)
set static::ck_debug 0
# Cookie encryption passphrase
# Change this to a custom string!
set static::ck_pass "SET_COOKIE_HERE_LEAVE_THE_QUOTES_THOUGH"
}
when HTTP_REQUEST {
if {$static::ck_debug}{log local0. "Request cookie names: [HTTP::cookie names]"}
# Check if the cookie names in the request match our string glob pattern
if {[set cookie_names [lsearch -all -inline [HTTP::cookie names] $static::ck_pattern]] ne ""}{
# We have at least one match so loop through the cookie(s) by name
if {$static::ck_debug}{log local0. "Matching cookie names: [HTTP::cookie names]"}
foreach cookie_name $cookie_names {
# Decrypt the cookie value and check if the decryption failed (null return value)
if {[HTTP::cookie decrypt $cookie_name $static::ck_pass] eq ""}{
# Cookie wasn't encrypted, delete it
if {$static::ck_debug}{log local0. "Removing cookie as decryption failed for $cookie_name"}
HTTP::cookie remove $cookie_name
}
}
if {$static::ck_debug}{log local0. "Cookie header(s): [HTTP::header values Cookie]"}
}
}
when HTTP_RESPONSE {
if {$static::ck_debug}{log local0. "Response cookie names: [HTTP::cookie names]"}
# Check if the cookie names in the request match our string glob pattern
if {[set cookie_names [lsearch -all -inline [HTTP::cookie names] $static::ck_pattern]] ne ""}{
# We have at least one match so loop through the cookie(s) by name
if {$static::ck_debug}{log local0. "Matching cookie names: [HTTP::cookie names]"}
foreach cookie_name $cookie_names {
# Encrypt the cookie value
HTTP::cookie encrypt $cookie_name $static::ck_pass
}
if {$static::ck_debug}{log local0. "Set-Cookie header(s): [HTTP::header values Set-Cookie]"}
}
}
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