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refactor: ShowMsgAt: find id from dex code
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163 changes: 163 additions & 0 deletions
163
app/src/main/java/io/github/qauxv/util/dexkit/HostMainDexHelper.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,163 @@ | ||
| /* | ||
| * QAuxiliary - An Xposed module for QQ/TIM | ||
| * Copyright (C) 2019-2023 QAuxiliary developers | ||
| * https://github.com/cinit/QAuxiliary | ||
| * | ||
| * This software is non-free but opensource software: you can redistribute it | ||
| * and/or modify it under the terms of the GNU Affero General Public License | ||
| * as published by the Free Software Foundation; either | ||
| * version 3 of the License, or any later version and our eula as published | ||
| * by QAuxiliary contributors. | ||
| * | ||
| * This software is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Affero General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Affero General Public License | ||
| * and eula along with this software. If not, see | ||
| * <https://www.gnu.org/licenses/> | ||
| * <https://github.com/cinit/QAuxiliary/blob/master/LICENSE.md>. | ||
| */ | ||
|
|
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| package io.github.qauxv.util.dexkit; | ||
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| import android.app.Application; | ||
| import androidx.annotation.Nullable; | ||
| import io.github.qauxv.util.HostInfo; | ||
| import io.github.qauxv.util.IoUtils; | ||
| import java.io.IOException; | ||
| import java.lang.ref.WeakReference; | ||
| import java.util.HashMap; | ||
| import java.util.Iterator; | ||
| import java.util.Objects; | ||
| import java.util.zip.ZipEntry; | ||
| import java.util.zip.ZipFile; | ||
|
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| public class HostMainDexHelper { | ||
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| private HostMainDexHelper() { | ||
| throw new UnsupportedOperationException("This is a utility class and cannot be instantiated"); | ||
| } | ||
|
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| private static HashMap<Integer, WeakReference<byte[]>> sCachedDex = new HashMap<>(32); | ||
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| @Nullable | ||
| private static byte[] extractDexFromHost(int index) { | ||
| Application app = HostInfo.getHostInfo().getApplication(); | ||
| // get path of base.apk | ||
| String apkPath = app.getApplicationInfo().sourceDir; | ||
| String dexName = getNameForIndex(index); | ||
| // FIXME 2023-07-25: on very old QQ/TIM versions, some dex is in assets | ||
| try (ZipFile zipFile = new ZipFile(apkPath)) { | ||
| ZipEntry entry = zipFile.getEntry(dexName); | ||
| if (entry == null) { | ||
| return null; | ||
| } | ||
| return IoUtils.readFully(zipFile.getInputStream(entry)); | ||
| } catch (IOException e) { | ||
| IoUtils.unsafeThrow(e); | ||
| // unreachable | ||
| return null; | ||
| } | ||
| } | ||
|
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| public static boolean hasDexIndex(int i) { | ||
| Application app = HostInfo.getHostInfo().getApplication(); | ||
| // get path of base.apk | ||
| String apkPath = app.getApplicationInfo().sourceDir; | ||
| String dexName = getNameForIndex(i); | ||
| // FIXME 2023-07-25: on very old QQ/TIM versions, some dex is in assets | ||
| try (ZipFile zipFile = new ZipFile(apkPath)) { | ||
| ZipEntry entry = zipFile.getEntry(dexName); | ||
| return entry != null; | ||
| } catch (IOException e) { | ||
| IoUtils.unsafeThrow(e); | ||
| // unreachable | ||
| return false; | ||
| } | ||
| } | ||
|
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| private static String getNameForIndex(int i) { | ||
| if (i <= 1) { | ||
| return "classes.dex"; | ||
| } else { | ||
| return "classes" + i + ".dex"; | ||
| } | ||
| } | ||
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| @Nullable | ||
| public static byte[] getHostDexIndex(int i) { | ||
| if (i <= 0) { | ||
| return null; | ||
| } | ||
| // load from cache | ||
| WeakReference<byte[]> weakReference = sCachedDex.get(i); | ||
| if (weakReference != null) { | ||
| byte[] bytes = weakReference.get(); | ||
| if (bytes != null) { | ||
| return bytes; | ||
| } | ||
| } | ||
| // load from host | ||
| byte[] bytes = extractDexFromHost(i); | ||
| if (bytes != null) { | ||
| sCachedDex.put(i, new WeakReference<>(bytes)); | ||
| } | ||
| return bytes; | ||
| } | ||
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| public static class DexIterator implements Iterator<byte[]> { | ||
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| private int nextIndex = 1; | ||
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| private DexIterator() { | ||
| } | ||
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| public boolean hasNext() { | ||
| return HostMainDexHelper.hasDexIndex(this.nextIndex); | ||
| } | ||
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| public byte[] next() { | ||
| byte[] hostDexIndex = HostMainDexHelper.getHostDexIndex(this.nextIndex); | ||
| if (hostDexIndex != null) { | ||
| this.nextIndex++; | ||
| } | ||
| return hostDexIndex; | ||
| } | ||
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| public int getLastIndex() { | ||
| return this.nextIndex - 1; | ||
| } | ||
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| } | ||
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| public static Iterator<byte[]> getDexIterator() { | ||
| return new DexIterator(); | ||
| } | ||
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| public static Iterable<byte[]> asIterable() { | ||
| return DexIterator::new; | ||
| } | ||
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| @Nullable | ||
| public static byte[] findDexWithClass(String name) { | ||
| if (name == null || name.isEmpty()) { | ||
| throw new IllegalArgumentException("name == null || name.isEmpty()"); | ||
| } | ||
| for (byte[] dex : asIterable()) { | ||
| if (DexFlow.hasClassInDex(dex, name)) { | ||
| return dex; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
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| @Nullable | ||
| public static byte[] findDexWithClass(Class<?> klass) { | ||
| Objects.requireNonNull(klass, "klass == null"); | ||
| return findDexWithClass(klass.getName()); | ||
| } | ||
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| } |
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