ida debug toolkit

src/main/java/com/virjar/ratel/api/extension/debug/IDADebug.java

+package com.virjar.ratel.api.extension.debug;
+
+import android.os.Build;
+import android.os.Process;
+import android.util.Log;
+
+import com.virjar.ratel.api.RatelToolKit;
+import com.virjar.ratel.api.rposed.RposedHelpers;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+
+import external.org.apache.commons.io.FileUtils;
+import external.org.apache.commons.io.IOUtils;
+
+/**
+ * IDA debugger.
+ * <br>
+ * 支持免root使用ida调试app，请注意需要平头哥在构造apk的时候加入 "-d"参数，将app指定为debug模式<br>
+ * ratel引擎自1.4.9之后，默认会提供native反调试绕过功能<br>
+ * 本功能可能依然没有自定义手机或者root手机强大，仅限部分场景下使用。<br>
+ * 不过ratel可以和配合ida或者其他框架进行调试:frida或者ida<br>
+ * 使用方法：
+ * 1.将ida的server文件放到插件的assets下，分别重命名为：as_adi_7_0_64（64位），as_adi_7_0（32位）
+ * 2.调用方法 startupIdaDebug(int debugPort)传入特定端口
+ * 3.adb forward
+ * 4.ida附加调试
+ */
+public class IDADebug {
+    private static final int LOLLIPOP = 21;
+    private static final int M = 23;
+
+    public static String tag = "IDA_DEBUGGER";
+
+    private static final String DEFAULT_ANDROID_SERVER_7_0_64 = "as_adi_7_0_64";
+    private static final String DEFAULT_ANDROID_SERVER_7_0_32 = "as_adi_7_0";
+
+    public static void setIDaServerBindLoader(IDAServerBinLoader iDaServerBindLoader) {
+        if (binLoader == null) {
+            return;
+        }
+        binLoader = iDaServerBindLoader;
+    }
+
+    public static void startupIdaDebug(int debugPort) {
+        boolean is64 = is64bit();
+        String idaBinName = is64 ? "as_adi_ratel_64" : "as_adi_ratel_32";
+        File idaBinFile = new File(RatelToolKit.sContext.getFilesDir(), idaBinName);
+        byte[] bytes = binLoader.loadAndroidServerBin(is64);
+        if (bytes != null) {
+            try {
+                FileUtils.writeByteArrayToFile(idaBinFile, bytes);
+            } catch (IOException e) {
+                Log.e(tag, "error to load ida bin file", e);
+            }
+        }
+        if (idaBinFile.exists()) {
+            runIdaBinProcess(idaBinFile, debugPort);
+        }
+    }
+
+
+    private static IDAServerBinLoader binLoader = is64Bit -> {
+        String idaBinName = is64Bit ? DEFAULT_ANDROID_SERVER_7_0_64 : DEFAULT_ANDROID_SERVER_7_0_32;
+        try (InputStream inputStream = IDADebug.class.getResourceAsStream("/assets/" + idaBinName)) {
+            if (inputStream == null) {
+                Log.e(tag, "can not open resource: " + idaBinName);
+                return null;
+            }
+            return IOUtils.toByteArray(inputStream);
+        } catch (IOException e) {
+            Log.e(tag, "failed to extract ida bin file", e);
+        }
+        return null;
+    };
+
+    public interface IDAServerBinLoader {
+        byte[] loadAndroidServerBin(boolean is64Bit);
+    }
+
+
+    public static boolean is64bit() {
+        if (Build.VERSION.SDK_INT < LOLLIPOP) {
+            return false;
+        }
+        if (Build.VERSION.SDK_INT >= M) {
+            //return Process.is64Bit();
+            RposedHelpers.callStaticMethod(Process.class, "is64Bit");
+        }
+        Object runtime = RposedHelpers.callStaticMethod(
+                RposedHelpers.findClass("dalvik.system.VMRuntime", ClassLoader.getSystemClassLoader()),
+                "getRuntime"
+        );
+        return (boolean) RposedHelpers.callMethod(runtime, "is64Bit");
+        //return VMRuntime.is64Bit.call(VMRuntime.getRuntime.call());
+    }
+
+    private static void runIdaBinProcess(File binFile, int debugPort) {
+        if (debugPort <= 0) {
+            debugPort = 4689;
+        }
+        if (!binFile.canExecute()) {
+            if (!binFile.setExecutable(true)) {
+                Log.w(tag, "set executable failed for file:  " + binFile.getAbsolutePath());
+
+            }
+        }
+        int finalDebugPort = debugPort;
+        new Thread("adi") {
+            @Override
+            public void run() {
+                try {
+                    java.lang.Process process = Runtime.getRuntime().exec(new String[]{
+                            binFile.getAbsolutePath(), "-p" + finalDebugPort
+                    });
+                    Log.i(tag, "ida debug process: " + process + " onPort:" + finalDebugPort);
+                    process.waitFor();
+                } catch (IOException e) {
+                    Log.e(tag, "start process failed", e);
+                } catch (InterruptedException interruptedException) {
+                    Log.e(tag, "interruptedException", interruptedException);
+                }
+            }
+        }.start();
+    }
+
+}