JFrame implements batch acquisition of the Android installation package security certificate MD5, jframeandroid

JFrame implements batch acquisition of the Android installation package security certificate MD5, jframeandroid

Today, I met a requirement to obtain the MD5 of all apk signatures. Below is a tool I implemented using Java SE to paste the core source code and hope to help anyone who needs it.

The interface is as follows:

Only define the directory where the .apk file is located. The core code is as follows:

Public class ReadCmdLine {private static MD5Window window; private static String inputPath; public static void main (String args []) {window = new MD5Window (); window. setVisible (true); initWindow ();} private static void initWindow () {// file directory text box window. getFilePathButton (). addActionListener (new ActionListener () {@ Overridepublic void actionreceivmed (ActionEvent arg0) {JFileChooser jfc = new JFileChooser (); jfc. SetFileSelectionMode (JFileChooser. FILES_AND_DIRECTORIES); jfc. showDialog (new JLabel (), "select"); File file = jfc. getSelectedFile (); notDirectoryExcute (file) ;}}); // run the window button. getBeginButton (). addActionListener (new ActionListener () {@ Overridepublic void actionreceivmed (ActionEvent arg0) {inputPath = window. getJTextFiled (); if (inputPath! = Null &&! "". Equals (inputPath. trim () {notDirectoryExcute (new File (inputPath) ;}}); // clear the result button window. getClearButton (). addActionListener (new ActionListener () {@ Overridepublic void actionreceivmed (ActionEvent arg0) {window. setTextArea ("") ;}}) ;}/ *** determines whether it is a directory. If not, run ** @ param file */public static void notDirectoryExcute (File file) {if (file. isDirectory () {inputPath = file. getAbsolutePath (); window. setJTextFile D (inputPath); File [] fiels = file. listFiles (); for (int I = 0; I <fiels. length; I ++) {String absPath = fiels [I]. getAbsolutePath (); if (absPath. contains (". apk ") {excute (absPath) ;}} else {JOptionPane. showMessageDialog (window, "Select Directory") ;}/ *** core logic *** @ param absPath */public static void excute (String absPath) {// 1、read CERT from .apk. RSA file String appName = absPath. substring (absPath. lastIndexOf ("_") + 1, abs Path. lastIndexOf ("."); try {if (absPath! = Null) {readZipFile (absPath) ;}} catch (Exception e) {e. printStackTrace ();} // 2. Execute the keytool command to obtain MD5Process process = null; List <String> processList = new ArrayList <String> (); try {process = runtime.getruntime(cmd.exe c ("keytool-printcert-file D:/test/CERT. RSA "); BufferedReader input = new BufferedReader (new InputStreamReader (process. getInputStream (); String line = ""; while (line = input. readLine ())! = Null) {processList. add (line);} input. close ();} catch (IOException e) {e. printStackTrace ();} // filter content for (String line: processList) {if (line. contains ("MD5") {window. setTextArea (window. getTextArea () + String. format ("%-30 s", appName) + line. trim () + "\ n ");}}} /*** read compressed file content ** @ param file path of the compressed file * @ throws Exception */public static void readZipFile (String file) throws Exception {ZipFile zf = new ZipFile (file); InputStream in = new BufferedInputStream (new FileInputStream (file); ZipInputStream zin = new ZipInputStream (in ); file outFile = new File ("D: \ test \ CERT. RSA "); OutputStream out = new FileOutputStream (outFile); InputStream rsaStream = zf. getInputStream (zf. getEntry ("META-INF/CERT. RSA "); byte [] buf1 = new byte [1024]; int len; while (len = rsaStream. read (buf1)> 0) {out. write (buf1, 0, len);} rsaStream. close (); out. close (); in. close (); zin. closeEntry ();}}