Java通过t3协议识别weblogic版本

心已赠人 2023-10-02 11:53 12阅读 0赞

import cn.hutool.core.util.ReUtil;
    
    import java.io.InputStream;
    import java.io.OutputStream;
    import java.net.Socket;
    import java.util.ArrayList;
    import java.util.Arrays;
    import java.util.List;
    
    import org.apache.commons.codec.DecoderException;
    import org.apache.commons.codec.binary.Hex;
    
    public class WeblogicVersionByT3 {
    
    	public static byte[] hexStrToBinaryStr(String hexString) {
    		hexString = hexString.replaceAll(" ", "");
    		int len = hexString.length();
    		int index = 0;
    		byte[] bytes = new byte[len / 2];
    		while (index < len) {
    			String sub = hexString.substring(index, index + 2);
    			bytes[index / 2] = (byte) Integer.parseInt(sub, 16);
    			index += 2;
    		}
    		return bytes;
    	}
    
    	public static String getVersion(String content) {
    		content = content.replace("HELO:", "").replace(".false", "").replace(".true", "");
    		String getVersionRegex = "[\\d\\.]+";
    		List<String> result = ReUtil.findAll(getVersionRegex, content, 0, new ArrayList<String>());
    		return result != null && result.size() > 0 ? result.get(0) : "";
    	}
    
    	public static String byteToHex(byte num) {
    		char[] hexDigits = new char[2];
    		hexDigits[0] = Character.forDigit((num >> 4) & 0xF, 16);
    		hexDigits[1] = Character.forDigit((num & 0xF), 16);
    		return new String(hexDigits);
    	}
    
    	public static String encodeHexString(byte[] byteArray) {
    		StringBuffer hexStringBuffer = new StringBuffer();
    		for (int i = 0; i < byteArray.length; i++) {
    			hexStringBuffer.append(byteToHex(byteArray[i]));
    		}
    		return hexStringBuffer.toString();
    	}
    
    	private static String asciiToHex(String asciiValue) {
    		byte[] bytes = asciiValue.getBytes();
    		// return Hex.encodeHexString(bytes);
    		return encodeHexString(bytes);
    	}
    
    	public static byte hexToByte(String hexString) {
    		int firstDigit = toDigit(hexString.charAt(0));
    		int secondDigit = toDigit(hexString.charAt(1));
    		return (byte) ((firstDigit << 4) + secondDigit);
    	}
    
    	private static int toDigit(char hexChar) {
    		int digit = Character.digit(hexChar, 16);
    		if (digit == -1) {
    			throw new IllegalArgumentException("Invalid Hexadecimal Character: " + hexChar);
    		}
    		return digit;
    	}
    
    	/**
    	 * @param hexString
    	 * @return
    	 */
    	public static byte[] decodeHexString(String hexString) {
    		if (hexString.length() % 2 == 1) {
    			throw new IllegalArgumentException("Invalid hexadecimal String supplied.");
    		}
    
    		byte[] bytes = new byte[hexString.length() / 2];
    		for (int i = 0; i < hexString.length(); i += 2) {
    			bytes[i / 2] = hexToByte(hexString.substring(i, i + 2));
    		}
    		return bytes;
    	}
    
    	private static String hexToAscii(String hexString) {
    		byte[] bytes = null;
    		// bytes = Hex.decodeHex(hexString);
    		bytes = decodeHexString(hexString);
    		String s = new String(bytes);
    		return s;
    	}
    
    	public static void main(String[] args) throws Exception {
    		String msg = "t3 12.2.1\n" + "AS:255\n" + "HL:19\n" + "MS:10000000\n" + "PU:t3://us-l-breens:7001\n\n";
    		System.out.println(
    				"74332031322e322e310a41533a3235350a484c3a31390a4d533a31303030303030300a50553a74333a2f2f75732d6c2d627265656e733a373030310a0a");
    		System.out.println(asciiToHex(msg));
    		System.out.println(hexToAscii(asciiToHex(msg)));
    		String version = "";
    		try {
    			Socket socket = new Socket("127.0.0.1", 7001);
    			OutputStream out = socket.getOutputStream();
    			InputStream is = socket.getInputStream();
    			out.write(hexStrToBinaryStr(asciiToHex(msg)));
    
    			out.flush();
    			Thread.sleep(1);
    			byte[] bytes = new byte[4096];
    			int length = is.read(bytes);
    			byte[] rspByte = Arrays.copyOfRange(bytes, 0, length);
    			socket.close();
    			System.out.println(new String(rspByte));
    			version = getVersion(new String(rspByte));
    		} catch (Exception e) {
    			version = "";
    		}
    		System.out.println(version);
    	}
    }