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使用agentArg的方式传入应用的lib路径 #3

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使用agentArg的方式传入应用的lib路径 #3

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10 changes: 9 additions & 1 deletion src/main/java/io/zhile/crack/atlassian/agent/Agent.java
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Original file line number Diff line number Diff line change
Expand Up @@ -9,8 +9,16 @@
*/
public class Agent {
public static void premain(String args, Instrumentation inst) {

System.out.println("====================================================");
System.out.println("======= Atlassian Crack Agent =======");
System.out.println("====================================================");

//noinspection UnnecessaryLocalVariable
final String appLibPath = args;
System.out.printf("application lib: %s \n", appLibPath);
try {
inst.addTransformer(new KeyTransformer());
inst.addTransformer(new KeyTransformer(appLibPath));
} catch (Exception e) {
throw new RuntimeException(e);
}
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26 changes: 20 additions & 6 deletions src/main/java/io/zhile/crack/atlassian/agent/KeyTransformer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,11 @@ public class KeyTransformer implements ClassFileTransformer {

private static final String LICENSE_DECODER_PATH = "com/atlassian/extras/decoder/v2/Version2LicenseDecoder";
private static final String LICENSE_DECODER_CLASS = "com.atlassian.extras.decoder.v2.Version2LicenseDecoder";
private final String libPath;

public KeyTransformer(String libPath) {
this.libPath = libPath;
}

@Override
public byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {
Expand All @@ -28,8 +33,14 @@ public byte[] transform(ClassLoader loader, String className, Class<?> classBein

if (className.equals(CN_KEY_SPEC)) {
return handleKeySpec();
} else if(className.equals(LICENSE_DECODER_PATH)) {
return handleLicenseDecoder();
}

if (libPath == null){
return classfileBuffer;
}

if (className.equals(LICENSE_DECODER_PATH)) {
return handleLicenseDecoder(libPath);
}

return classfileBuffer;
Expand Down Expand Up @@ -66,11 +77,14 @@ private byte[] handleKeySpec() throws IllegalClassFormatException {
* @return 修改过的类的字节码
* @throws IllegalClassFormatException 当某些地方出问题了就会抛出这个异常
*/
private byte[] handleLicenseDecoder() throws IllegalClassFormatException {
private byte[] handleLicenseDecoder(String libFilePath) throws IllegalClassFormatException {
try {
// 我不知道怎么从 com.atlassian.bitbucket.internal.launcher.BitbucketServerLauncher 读取这个路径，所以我直接 HARD CODE
// Forgive me pls...
File libs = new File("/opt/atlassian/bitbucket/7.21.0/app/WEB-INF/lib");
File libs = new File(libFilePath);
if (!libs.exists()) {
System.err.printf("path[%s]not found, please check the parameters.\n", libFilePath);
}else if (!libs.isDirectory()){
System.err.printf("path[%s]not a correct directory, please check the parameters.\n", libFilePath);
}
ClassPool cp = ClassPool.getDefault();

Arrays.stream(Objects.requireNonNull(libs.listFiles())).map(File::getAbsolutePath).forEach((it) -> {
Expand Down