README
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GO Encrypted Token Session 
goETS is an implementation of the Encrypted Token Paturn Session written for Negroni middleware.
Usage
Options
- MaxAge - is the max length of time in seconds that a session token is valid
- CryptKey - is the secret 256 bit AES key
Examples
General Example
// Setting up the session options
var sOpt = new(session.Options)
// Set the max age of the session in seconds
sOpt.MaxAge = 30 * 60 // 30min * 60 sec/min
// This is only a test key, the key needs to be secret.
sOpt.CryptKey = []byte("n+D+LpWrHpjzhe4HyPdALAbwrB4vk1WV")
n := negroni.Classic()
// Using the session middleware in Negroni
n.Use(session.NewSession(sOpt))
Setting Session
context.Set(req, session.CONTEXT_KEY, "1")
Clearing Session
context.Set(req, session.CONTEXT_KEY, "")
Retrieving session
sesStr := context.Get(req, session.CONTEXT_KEY).(string)
Documentation
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Overview ¶
goETS is a session management middleware that does not require a database call to check the session and implements the Encrypted Token Pattern helping prevent CSRF. More information about the Encypted Token Pattern can be found at: (https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet#Encrypted_Token_Pattern).
Index ¶
Examples ¶
Constants ¶
const CONTEXT_KEY string = "session_id"
const KeySize = 32
KeySize is size of AES-256-GCM keys in bytes.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Session ¶
type Session struct {
// contains filtered or unexported fields
}
Example (NegroniMiddleware) ¶
Demonstrates the general usage of this package with negroni
// Setting up the session options
var sOpt = new(session.Options)
// Set the max age of the session in seconds
sOpt.MaxAge = 30 * 60 // 30min * 60 sec/min
// This is only a test key, the key needs to be secret.
sOpt.CryptKey = []byte("n+D+LpWrHpjzhe4HyPdALAbwrB4vk1WV")
n := negroni.Classic()
// Using the session middleware in Negroni
n.Use(session.NewSession(sOpt))
mux := http.NewServeMux()
mux.HandleFunc("/setSession", func(w http.ResponseWriter, req *http.Request) {
// Setting the session on an individual request, if you do not modify the
// session it will retain its settings for the request
context.Set(req, session.CONTEXT_KEY, "1")
})
mux.HandleFunc("/getSession", func(w http.ResponseWriter, req *http.Request) {
// Retrieving the session unique identifier
_ = context.Get(req, session.CONTEXT_KEY).(string)
})
Output:
func NewSession ¶
NewSession is used in the creation of the Negroni middleware
func (*Session) ServeHTTP ¶
func (s *Session) ServeHTTP(w http.ResponseWriter, req *http.Request, next http.HandlerFunc)
ServeHTTP is a http server handeler for the middleware which handles the session data and stores the session id in the context.
Source Files