feat(auth): #154 send verification mails

utils/http.go

@@ -0,0 +1,72 @@
+package utils
+
+import (
+	"database/sql"
+	"log/slog"
+	"me-fit/types"
+	"net/http"
+	"time"
+)
+
+type ContextKey string
+
+const (
+	ContextKeyUser ContextKey = "user_id"
+)
+
+func DoRedirect(w http.ResponseWriter, r *http.Request, url string) {
+	isHtmx := r.Header.Get("HX-Request") == "true"
+	if isHtmx {
+		w.Header().Add("HX-Redirect", url)
+	} else {
+		http.Redirect(w, r, url, http.StatusSeeOther)
+	}
+}
+
+func GetUser(r *http.Request) *types.User {
+	user := r.Context().Value(ContextKeyUser)
+	if user != nil {
+		return user.(*types.User)
+	} else {
+		return nil
+	}
+}
+
+func GetUserFromSession(db *sql.DB, r *http.Request) *types.User {
+	sessionId := getSessionID(r)
+	if sessionId == "" {
+		return nil
+	}
+
+	var user types.User
+	var createdAt time.Time
+
+	user.SessionId = sessionId
+
+	err := db.QueryRow(`
+			SELECT u.user_uuid, u.email, u.email_verified, s.created_at
+			FROM session s
+			INNER JOIN user u ON s.user_uuid = u.user_uuid
+			WHERE session_id = ?`, sessionId).Scan(&user.Id, &user.Email, &user.EmailVerified, &createdAt)
+	if err != nil {
+		slog.Warn("Could not verify session: " + err.Error())
+		return nil
+	}
+
+	if createdAt.Add(time.Duration(8 * time.Hour)).Before(time.Now()) {
+		user.SessionValid = false
+	} else {
+		user.SessionValid = true
+	}
+
+	return &user
+}
+
+func getSessionID(r *http.Request) string {
+	for _, c := range r.Cookies() {
+		if c.Name == "id" {
+			return c.Value
+		}
+	}
+	return ""
+}