From 6365a43c72579b9047cc380a74d68851561a7479 Mon Sep 17 00:00:00 2001 From: M66B Date: Sun, 4 Sep 2022 08:44:09 +0200 Subject: [PATCH] Added whois client --- .../main/java/eu/faircode/email/Whois.java | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 app/src/main/java/eu/faircode/email/Whois.java diff --git a/app/src/main/java/eu/faircode/email/Whois.java b/app/src/main/java/eu/faircode/email/Whois.java new file mode 100644 index 0000000000..27fdf3bc8c --- /dev/null +++ b/app/src/main/java/eu/faircode/email/Whois.java @@ -0,0 +1,43 @@ +package eu.faircode.email; + +/* + This file is part of FairEmail. + + FairEmail is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + FairEmail is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with FairEmail. If not, see . + + Copyright 2018-2022 by Marcel Bokhorst (M66B) +*/ + +import java.io.IOException; +import java.net.Socket; + +public class Whois { + private static final String WHOIS_HOST = "whois.internic.net"; + private static final int WHOIS_PORT = 43; + + static String get(String domain) throws IOException { + return get(domain, WHOIS_HOST, WHOIS_PORT); + } + + static String get(String domain, String host) throws IOException { + return get(domain, host, WHOIS_PORT); + } + + static String get(String domain, String host, int port) throws IOException { + try (Socket socket = new Socket(host, port)) { + socket.getOutputStream().write((domain + "\n").getBytes()); + return Helper.readStream(socket.getInputStream()); + } + } +}