Function handleViewInvite

invites.go:136–206

(app *App, w http.ResponseWriter, r *http.Request)

}

func handleViewInvite(app *App, w http.ResponseWriter, r *http.Request) error {
	inviteCode := mux.Vars(r)["code"]

	i, err := app.db.GetUserInvite(inviteCode)
	if err != nil {
		return err
	}

	expired := i.Expired()
	if !expired && i.MaxUses.Valid && i.MaxUses.Int64 > 0 {
		// Invite has a max-use number, so check if we're past that limit
		i.uses = app.db.GetUsersInvitedCount(inviteCode)
		expired = i.uses >= i.MaxUses.Int64
	}

	if u := getUserSession(app, r); u != nil {
		// check if invite belongs to another user
		// error can be ignored as not important in this case
		if ownInvite, _ := app.db.IsUsersInvite(inviteCode, u.ID); !ownInvite {
			addSessionFlash(app, w, r, "You're already registered and logged in.", nil)
			// show homepage
			return impart.HTTPError{http.StatusFound, "/me/settings"}
		}

		// show invite instructions
		p := struct {
			*UserPage
			Invite  *Invite
			Expired bool
		}{
			UserPage: NewUserPage(app, r, u, "Invite to "+app.cfg.App.SiteName, nil),
			Invite:   i,
			Expired:  expired,
		}
		showUserPage(w, "invite-help", p)
		return nil
	}

	p := struct {
		page.StaticPage
		*OAuthButtons
		Error   string
		Flashes []template.HTML
		Invite  string
	}{
		StaticPage:   pageForReq(app, r),
		OAuthButtons: NewOAuthButtons(app.cfg),
		Invite:       inviteCode,
	}

	if expired {
		p.Error = "This invite link has expired."
	}

	// Tell search engines not to index invite links
	w.Header().Set("X-Robots-Tag", "noindex")

	// Get error messages