Change ValidateSession() to SessionIsActive() which only returns a bool

cmd/calls/images.go

@@ -10,7 +10,7 @@ import (
 
 func ServeImage(c *b.Config, s map[string]*f.Session) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		if _, err := f.ValidateSession(w, r, c, s); err != nil {
+		if !f.SessionIsActive(r, s) {
 			if !tokenIsVerified(w, r, c) {
 				return
 			}

cmd/frontend/sessions.go

@@ -66,18 +66,14 @@ func StartSessions() (map[string]*Session, chan string) {
 
 // ValidateSession is used for verifying that the user is logged in and returns
 // their session and an error.
-func ValidateSession(w http.ResponseWriter, r *http.Request, c *b.Config, s map[string]*Session) (*Session, error) {
+func SessionIsActive(r *http.Request, s map[string]*Session) bool {
 	cookie, err := r.Cookie("cpolis_session")
 	if err != nil {
-		return nil, errors.New("no cookie set")
+		return false
 	}
 
-	session, ok := s[cookie.Value]
-	if !ok {
-		return nil, errors.New("session does not exist")
-	}
-
-	return session, nil
+	_, ok := s[cookie.Value]
+	return ok
 }
 
 // ManageSession is used for verifying that the user is logged in and returns