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fix: print with network address (#2684)
* feat: print default use local network address Signed-off-by: licho <[email protected]> * Spotless Apply * restore auto.sh Signed-off-by: licho <[email protected]> --------- Signed-off-by: licho <[email protected]> Co-authored-by: leechor <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,166 @@ | ||
| /* | ||
| * | ||
| * Licensed to the Apache Software Foundation (ASF) under one or more | ||
| * contributor license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright ownership. | ||
| * The ASF licenses this file to You under the Apache License, Version 2.0 | ||
| * (the "License"); you may not use this file except in compliance with | ||
| * the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| */ | ||
|
|
||
| package org.dinky.utils; | ||
|
|
||
| import org.dinky.assertion.Asserts; | ||
|
|
||
| import java.net.InetAddress; | ||
| import java.net.ServerSocket; | ||
| import java.net.UnknownHostException; | ||
|
|
||
| public class IpUtil { | ||
|
|
||
| public static String getHostIp() { | ||
| try { | ||
| return InetAddress.getLocalHost().getHostAddress(); | ||
| } catch (UnknownHostException ignored) { | ||
| } | ||
| return "127.0.0.1"; | ||
| } | ||
|
|
||
| public static String getHostName() { | ||
| try { | ||
| return InetAddress.getLocalHost().getHostName(); | ||
| } catch (UnknownHostException e) { | ||
| } | ||
| return "UnKnown"; | ||
| } | ||
|
|
||
| public static boolean isPortAvailable(int port) { | ||
| try (ServerSocket serverSocket = new ServerSocket(port)) { | ||
| // If the code reaches this point, the port is available | ||
| return true; | ||
| } catch (Exception e) { | ||
| // Port is not available | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| public static boolean internalIp(String ip) { | ||
| byte[] addr = textToNumericFormatV4(ip); | ||
| return internalIp(addr) || "127.0.0.1".equals(ip); | ||
| } | ||
|
|
||
| private static boolean internalIp(byte[] addr) { | ||
| if (Asserts.isNull(addr) || addr.length < 2) { | ||
| return true; | ||
| } | ||
| final byte b0 = addr[0]; | ||
| final byte b1 = addr[1]; | ||
| // 10.x.x.x/8 | ||
| final byte SECTION_1 = 0x0A; | ||
| // 172.16.x.x/12 | ||
| final byte SECTION_2 = (byte) 0xAC; | ||
| final byte SECTION_3 = (byte) 0x10; | ||
| final byte SECTION_4 = (byte) 0x1F; | ||
| // 192.168.x.x/16 | ||
| final byte SECTION_5 = (byte) 0xC0; | ||
| final byte SECTION_6 = (byte) 0xA8; | ||
| switch (b0) { | ||
| case SECTION_1: | ||
| return true; | ||
| case SECTION_2: | ||
| if (b1 >= SECTION_3 && b1 <= SECTION_4) { | ||
| return true; | ||
| } | ||
| case SECTION_5: | ||
| switch (b1) { | ||
| case SECTION_6: | ||
| return true; | ||
| } | ||
| default: | ||
| return false; | ||
| } | ||
| } | ||
|
|
||
| /** | ||
| * 将IPv4地址转换成字节 | ||
| * | ||
| * @param text IPv4地址 | ||
| * @return byte 字节 | ||
| */ | ||
| public static byte[] textToNumericFormatV4(String text) { | ||
| if (text.length() == 0) { | ||
| return null; | ||
| } | ||
|
|
||
| byte[] bytes = new byte[4]; | ||
| String[] elements = text.split("\\.", -1); | ||
| try { | ||
| long l; | ||
| int i; | ||
| switch (elements.length) { | ||
| case 1: | ||
| l = Long.parseLong(elements[0]); | ||
| if ((l < 0L) || (l > 4294967295L)) { | ||
| return null; | ||
| } | ||
| bytes[0] = (byte) (int) (l >> 24 & 0xFF); | ||
| bytes[1] = (byte) (int) ((l & 0xFFFFFF) >> 16 & 0xFF); | ||
| bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); | ||
| bytes[3] = (byte) (int) (l & 0xFF); | ||
| break; | ||
| case 2: | ||
| l = Integer.parseInt(elements[0]); | ||
| if ((l < 0L) || (l > 255L)) { | ||
| return null; | ||
| } | ||
| bytes[0] = (byte) (int) (l & 0xFF); | ||
| l = Integer.parseInt(elements[1]); | ||
| if ((l < 0L) || (l > 16777215L)) { | ||
| return null; | ||
| } | ||
| bytes[1] = (byte) (int) (l >> 16 & 0xFF); | ||
| bytes[2] = (byte) (int) ((l & 0xFFFF) >> 8 & 0xFF); | ||
| bytes[3] = (byte) (int) (l & 0xFF); | ||
| break; | ||
| case 3: | ||
| for (i = 0; i < 2; ++i) { | ||
| l = Integer.parseInt(elements[i]); | ||
| if ((l < 0L) || (l > 255L)) { | ||
| return null; | ||
| } | ||
| bytes[i] = (byte) (int) (l & 0xFF); | ||
| } | ||
| l = Integer.parseInt(elements[2]); | ||
| if ((l < 0L) || (l > 65535L)) { | ||
| return null; | ||
| } | ||
| bytes[2] = (byte) (int) (l >> 8 & 0xFF); | ||
| bytes[3] = (byte) (int) (l & 0xFF); | ||
| break; | ||
| case 4: | ||
| for (i = 0; i < 4; ++i) { | ||
| l = Integer.parseInt(elements[i]); | ||
| if ((l < 0L) || (l > 255L)) { | ||
| return null; | ||
| } | ||
| bytes[i] = (byte) (int) (l & 0xFF); | ||
| } | ||
| break; | ||
| default: | ||
| return null; | ||
| } | ||
| } catch (NumberFormatException e) { | ||
| return null; | ||
| } | ||
| return bytes; | ||
| } | ||
| } |
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