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package handlers
import (
"context"
"errors"
"net/http"
)
func (h *Handlers) GetSession(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
sessionCookie, err := r.Cookie("session_token")
if err != nil {
msg := "auth failed; failed to get session token from cookies"
h.log.Debug(msg, "error", err)
next.ServeHTTP(w, r)
return
}
sessionToken := ""
if sessionCookie.Value == "" {
sessionToken = sessionCookie.Value
}
userSession, err := h.cacheGetSession(sessionCookie.Value)
if err != nil {
msg := "auth failed; session does not exists"
err = errors.New(msg)
h.log.Debug(msg, "error", err)
next.ServeHTTP(w, r)
return
}
if userSession.IsExpired() {
h.mc.RemoveKey(sessionToken)
msg := "session is expired"
h.log.Debug(msg, "error", err, "token", sessionToken)
next.ServeHTTP(w, r)
return
}
ctx := context.WithValue(r.Context(),
"username", userSession.Username)
if err := h.cacheSetSession(sessionToken,
userSession); err != nil {
msg := "failed to marshal user session"
h.log.Warn(msg, "error", err)
next.ServeHTTP(w, r)
return
}
next.ServeHTTP(w, r.WithContext(ctx))
})
}
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