import com.xxx.common.util.EncryptUtil;//相应的解密工具import java.io.BufferedReader;import java.io.File;import java.io.FileFilter;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.FileReader;import java.io.IOException;import java.io.OutputStreamWriter;import java.util.ArrayList;import java.util.Arrays;import java.util.Iterator;import java.util.List;import java.util.Properties;public class LogDecryptionTool {    private static String KEY = "!@#$%^&*()_+"; //解密key    private static List
    
      wordList = new ArrayList();    private static boolean usewords = false;//解密关键字，还是解密整行    private static String DES_PREFIX = "M-"; //解密生成的文件的前缀    public LogDecryptionTool() {    }    public static void main(String[] args) {        FileInputStream in = null;        try {            try {                Properties e = new Properties();                in = new FileInputStream(System.getProperty("user.dir") + "/config.properties");                e.load(in);                String logPath = e.getProperty("log.path");                KEY = e.getProperty("log.key");                DES_PREFIX = e.getProperty("log.deslogprefix");                usewords = Boolean.valueOf(e.getProperty("log.usewords")).booleanValue();                if(usewords) {                    String keywords = e.getProperty("log.keywords");                    String[] words = keywords.split("\\|");                    if(words.length == 0) {                        return;                    }                    wordList = Arrays.asList(words);                }                System.out.println("log path: " + logPath);                decrypt(new File(logPath));            } catch (IOException var16) {                System.out.println(var16.getMessage());            }        } finally {            if(in != null) {                try {                    in.close();                } catch (IOException var15) {                    System.out.println(var15.getMessage());                }            }        }    }    /**     * 解密日志文件     * @param logFile     */    public static void decrypt(File logFile) {        //文件夹，则筛选特定日志文件        if(logFile.isDirectory()) {            List files = Arrays.asList(logFile.listFiles((pathname) -> {                return pathname.getName().endsWith(".log") && !pathname.getName().startsWith(DES_PREFIX) || pathname.isDirectory() && pathname.getName().startsWith("xxx");            }));            Iterator it = files.iterator();            //递归            while(it.hasNext()) {                File file = (File)it.next();                decrypt(file);            }        } else {            (new Thread(() -> {                decrypteLog(logFile);            })).start();        }    }    //解密实际的日志文件    public static void decrypteLog(File logFile) {        String path = logFile.getAbsolutePath();        if(!path.endsWith("/") && !path.endsWith("\\")) {            int lastIndex = path.lastIndexOf("/");            lastIndex = lastIndex == -1?path.lastIndexOf("\\"):lastIndex;            String spath = path.substring(0, lastIndex);            String desPath = spath + "/" + "M-" + logFile.getName();            BufferedReader fbr = null;            FileReader fr = null;            FileOutputStream fo = null;            OutputStreamWriter out = null;            try {                fr = new FileReader(path);                fo = new FileOutputStream(desPath);                out = new OutputStreamWriter(fo);                fbr = new BufferedReader(fr);                System.out.println("log file " + path + " decryption begin...");                String e;                for(; (e = fbr.readLine()) != null; out.append("\r\n")) {                    if(usewords) {                        out.append(dealWords(e));                    } else {                        out.append(EncryptUtil.aesDecrypt(e, KEY));//使用相应的解密算法解密像一个的字段                    }                }                out.flush();                System.out.println("log file " + path + " decryption over, des file path: " + desPath + " !");            } catch (Exception var18) {                System.out.println(var18.getMessage());            } finally {                try {                    if(fbr != null) {                        fbr.close();                    }                    if(out != null) {                        out.close();                    }                    if(fr != null) {                        fr.close();                    }                    if(fo != null) {                        fo.close();                    }                } catch (IOException var17) {                    System.out.println(var17.getMessage());                }            }        } else {            System.out.println("file path required!");        }    }    /**     * 处理关键字解密     * @param line     * @return     */    private static String dealWords(String line) {        String tempLine = line;        Iterator var2 = wordList.iterator();        while(var2.hasNext()) {            String word = (String)var2.next();            int wordIndex = tempLine.indexOf(word + ":");            if(wordIndex != -1) {                int endIndex = tempLine.indexOf(",", wordIndex);                if(endIndex == -1) {                    endIndex = tempLine.length() - 1;                }                String tword = tempLine.substring(wordIndex + 1 + word.length(), endIndex);                String mi = EncryptUtil.aesDecrypt(tword.trim(), KEY);                tempLine = tempLine.replace(tword, mi);            }        }        return tempLine;    }    public static void testEncryptLog() {        BufferedReader fbr = null;        FileReader fr = null;        FileOutputStream fo = null;        OutputStreamWriter out = null;        try {            fr = new FileReader("D:\\×××-12-05-2016-1.log");            fo = new FileOutputStream("D:\\×××-12-05-2016-1.log");            out = new OutputStreamWriter(fo);            String e;            for(fbr = new BufferedReader(fr); (e = fbr.readLine()) != null; out.append("\r\n")) {                if(usewords) {                    out.append(dealEnWords(e));                } else {                    out.append(EncryptUtil.aesDecrypt(e, KEY));                }            }            out.flush();            System.out.println("en over!");        } catch (FileNotFoundException var15) {            var15.printStackTrace();        } catch (IOException var16) {            var16.printStackTrace();        } finally {            try {                if(fbr != null) {                    fbr.close();                }                if(out != null) {                    out.close();                }                if(fr != null) {                    fr.close();                }                if(fo != null) {                    fo.close();                }            } catch (IOException var14) {                var14.printStackTrace();            }        }    }    private static String dealEnWords(String line) {        String tempLine = line;        Iterator var2 = wordList.iterator();        while(var2.hasNext()) {            String word = (String)var2.next();            int wordIndex = tempLine.indexOf(word + ":");            if(wordIndex != -1) {                int endIndex = tempLine.indexOf(",", wordIndex);                if(endIndex == -1) {                    endIndex = tempLine.length() - 1;                }                String tword = tempLine.substring(wordIndex + 1 + word.length(), endIndex);                String mi = EncryptUtil.aesEncrypt(tword.trim(), KEY);                tempLine = tempLine.replace(tword, mi);            }        }        return tempLine;    }}
    

#日志文件路径log.path=D:\\#解密密钥log.key=!@#$%^&*()_+log.usewords=true#需要解密的日志内容关键字log.keywords=token|phone|username|order id#解密生成明文日志文件名称前缀log.deslogprefix=M-