initial sessions support via sessions pkg, includes session middleware for setting sessions, guest sessions, method to return array of middlewares

1 files changed, 36 insertions, 0 deletions

diff --git a/src/sessions/middleware.go b/src/sessions/middleware.go
new file mode 100644
index 0000000..238047e
--- /dev/null
+++ b/src/sessions/middleware.go
@@ -0,0 +1,36 @@
+package sessions
+
+import (
+	"context"
+	"net/http"
+)
+
+func SetSession(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		scookie, err := r.Cookie("session_token")
+		if err != nil || scookie.Value == "" {
+			// no session value or cookie
+			next.ServeHTTP(w, r)
+		}
+		cvalue := scookie.Value
+		vsession, ok := Sessions[cvalue]
+		if !ok {
+			// no session
+			next.ServeHTTP(w, r)
+		}
+		// set session
+		ctx := context.WithValue(r.Context(), SessionCtxKey("session"), vsession)
+		next.ServeHTTP(w, r.WithContext(ctx))
+	})
+}
+
+func GuestSession(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// if SessionKey does not exist then this is a valid guest request
+		if _, ok := r.Context().Value(SessionCtxKey("session")).(session); !ok {
+			next.ServeHTTP(w, r)
+		}
+		// else redirect to `/` as this is an auth session
+		http.Redirect(w, r, "/", http.StatusSeeOther)
+	})
+}