Functions
FortiADC supports the basic commands. If the user want more functions, the user can implement functions to define more with the basic commands.
Syntax
function function_name(parameter)
…
end
Examples: cookie command usage
FortiADC supports two cookie commands: cookie_list() and cookie(t) with t as a table input
when HTTP_REQUEST {
ret=HTTP:cookie_list()
for k,v in pairs(ret) do
debug("-----cookie name %s, value %s-----\n", k,v);
end
GET value of cookie "test"
value = get_cookie_value(HTTP, "test") --the return value is either boolean false or its value if exists.
debug("-----get cookie value return %s-----\n", value);
GET attribute path of cookie "test", can be used to get other attributes too
case_flag = 0; -- or 1
ret = get_cookie_attribute(HTTP, "test", "path", case_flag);--return value is either boolean false or its value if exists
debug("-----get cookie path return %s-----\n", ret);
SET value of cookie "test"
ret = set_cookie_value(HTTP, "test", "newvalue")--return value is boolean
debug("-----set cookie value return %s-----\n", ret);
REMOVE a whole cookie
ret = remove_whole_cookie(HTTP, "test")--return value is boolean
debug("-----remove cookie return %s-----\n", ret);
INSERT a new cookie.
|
You need to make sure the cookie was not first created by the GET command. Otherwise, by design FortiADC shall use SET command to change its value or attributes. |
In HTTP REQUEST, use $Path, $Domain, $Port, $Version; in HTTP RESPONSE, use Path, Domain, Port, Version, etc.
ret = insert_cookie(HTTP, "test", "abc.d; $Path=/; $Domain=www.example.com, ")--return value is boolean
debug("-----insert cookie return %s-----\n", ret);
}
function get_cookie_value(HTTP, cookiename)
local t={};
t["name"]=cookiename
t["parameter"]="value";
t["action"]="get"
return HTTP:cookie(t)
end
attrname can be path, domain, expires, secure, maxage, max-age, httponly, version, port.
case_flag: If you use zero, FortiADC looks for default attributes named Path, Domain, Expires, Secure, Max-Age, HttpOnly, Version, Port. By setting this to 1, you can specify the case sensitive attribute name to look for in t["parameter"] which could be PAth, DOmaIn, MAX-AGE, EXpires, secuRE, HTTPONLy, VerSion, Port, etc.
function get_cookie_attribute(HTTP, cookiename, attrname, case_flag)
local t={};
t["name"]=cookiename
t["parameter"]=attrname;
t["case_sensitive"] = case_flag;
t["action"]="get"
return HTTP:cookie(t)
end
function set_cookie_value(HTTP, cookiename, newvalue)
local t={};
t["name"]=cookiename
t["value"]=newvalue
t["parameter"]="value";
t["action"]="set"
return HTTP:cookie(t)
end
function remove_whole_cookie(HTTP, cookiename)
local t={};
t["name"]=cookiename
t["parameter"]="cookie";
t["action"]="remove"
return HTTP:cookie(t)
end
function insert_cookie(HTTP, cookiename, value)
local t={};
t["name"]=cookiename
t["value"]=value;
t["parameter"]="cookie";
t["action"]="insert"
return HTTP:cookie(t)
end
