mirror of https://github.com/topjohnwu/Magisk
138 lines
3.9 KiB
Java
138 lines
3.9 KiB
Java
package com.topjohnwu.magisk;
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import android.app.job.JobService;
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import android.content.pm.ActivityInfo;
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import android.content.pm.PackageInfo;
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import android.content.pm.ServiceInfo;
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import com.topjohnwu.magisk.dummy.DummyProvider;
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import com.topjohnwu.magisk.dummy.DummyReceiver;
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import com.topjohnwu.magisk.dummy.DummyService;
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import com.topjohnwu.magisk.utils.DynamicClassLoader;
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import java.io.File;
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import java.util.HashMap;
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import java.util.Map;
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// Wrap the actual classloader as we only want to resolve classname
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// mapping when loading from platform (via LoadedApk.mClassLoader)
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class AppClassLoader extends ClassLoader {
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final Map<String, String> mapping = new HashMap<>();
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AppClassLoader(File apk) {
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super(new DynamicClassLoader(apk));
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}
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@Override
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protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
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String clz = mapping.get(name);
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name = clz != null ? clz : name;
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return super.loadClass(name, resolve);
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}
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void updateComponentMap(PackageInfo stub, PackageInfo app) {
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{
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var src = stub.activities;
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var dest = app.activities;
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final ActivityInfo sa;
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final ActivityInfo da;
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final ActivityInfo sb;
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final ActivityInfo db;
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if (src[0].exported) {
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sa = src[0];
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sb = src[1];
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} else {
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sa = src[1];
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sb = src[0];
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}
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if (dest[0].exported) {
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da = dest[0];
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db = dest[1];
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} else {
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da = dest[1];
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db = dest[0];
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}
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mapping.put(sa.name, da.name);
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mapping.put(sb.name, db.name);
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}
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{
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var src = stub.services;
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var dest = app.services;
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final ServiceInfo sa;
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final ServiceInfo da;
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final ServiceInfo sb;
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final ServiceInfo db;
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if (JobService.PERMISSION_BIND.equals(src[0].permission)) {
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sa = src[0];
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sb = src[1];
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} else {
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sa = src[1];
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sb = src[0];
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}
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if (JobService.PERMISSION_BIND.equals(dest[0].permission)) {
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da = dest[0];
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db = dest[1];
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} else {
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da = dest[1];
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db = dest[0];
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}
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mapping.put(sa.name, da.name);
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mapping.put(sb.name, db.name);
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}
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{
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var src = stub.receivers;
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var dest = app.receivers;
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mapping.put(src[0].name, dest[0].name);
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}
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{
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var src = stub.providers;
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var dest = app.providers;
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mapping.put(src[0].name, dest[0].name);
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}
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}
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}
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class StubClassLoader extends ClassLoader {
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private final Map<String, Class<?>> mapping = new HashMap<>();
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StubClassLoader(PackageInfo info) {
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super(StubClassLoader.class.getClassLoader());
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for (var c : info.activities) {
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mapping.put(c.name, DownloadActivity.class);
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}
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for (var c : info.services) {
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mapping.put(c.name, DummyService.class);
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}
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for (var c : info.providers) {
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mapping.put(c.name, DummyProvider.class);
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}
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for (var c : info.receivers) {
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mapping.put(c.name, DummyReceiver.class);
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}
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}
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@Override
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protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
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Class<?> clz = mapping.get(name);
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return clz == null ? super.loadClass(name, resolve) : clz;
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}
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}
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class DelegateClassLoader extends ClassLoader {
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DelegateClassLoader() {
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super();
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}
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@Override
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protected Class<?> loadClass(String name, boolean resolve) throws ClassNotFoundException {
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return DynLoad.activeClassLoader.loadClass(name);
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}
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}
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