1 files changed, 0 insertions, 180 deletions
diff --git a/app/src/main/java/com/wireguard/android/util/ToolsInstaller.java b/app/src/main/java/com/wireguard/android/util/ToolsInstaller.java
deleted file mode 100644
index defdefd8..00000000
--- a/app/src/main/java/com/wireguard/android/util/ToolsInstaller.java
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * Copyright © 2017-2019 WireGuard LLC. All Rights Reserved.
- * SPDX-License-Identifier: Apache-2.0
- */
-
-package com.wireguard.android.util;
-
-import android.content.Context;
-import androidx.annotation.Nullable;
-import android.system.OsConstants;
-import android.util.Log;
-
-import com.wireguard.android.Application;
-import com.wireguard.android.BuildConfig;
-import com.wireguard.android.R;
-import com.wireguard.android.util.RootShell.NoRootException;
-
-import java.io.File;
-import java.io.FileNotFoundException;
-import java.io.IOException;
-import java.util.Arrays;
-import java.util.List;
-
-/**
- * Helper to install WireGuard tools to the system partition.
- */
-
-public final class ToolsInstaller {
-    public static final int ERROR = 0x0;
-    public static final int MAGISK = 0x4;
-    public static final int NO = 0x2;
-    public static final int SYSTEM = 0x8;
-    public static final int YES = 0x1;
-    private static final String[] EXECUTABLES = {"wg", "wg-quick"};
-    private static final File[] INSTALL_DIRS = {
-            new File("/system/xbin"),
-            new File("/system/bin"),
-    };
-    @Nullable private static final File INSTALL_DIR = getInstallDir();
-    private static final String TAG = "WireGuard/" + ToolsInstaller.class.getSimpleName();
-
-    private final Context context;
-    private final File localBinaryDir;
-    private final Object lock = new Object();
-    @Nullable private Boolean areToolsAvailable;
-    @Nullable private Boolean installAsMagiskModule;
-
-    public ToolsInstaller(final Context context) {
-        localBinaryDir = new File(context.getCodeCacheDir(), "bin");
-        this.context = context;
-    }
-
-    @Nullable
-    private static File getInstallDir() {
-        final String path = System.getenv("PATH");
-        if (path == null)
-            return INSTALL_DIRS[0];
-        final List<String> paths = Arrays.asList(path.split(":"));
-        for (final File dir : INSTALL_DIRS) {
-            if (paths.contains(dir.getPath()) && dir.isDirectory())
-                return dir;
-        }
-        return null;
-    }
-
-    public int areInstalled() throws NoRootException {
-        if (INSTALL_DIR == null)
-            return ERROR;
-        final StringBuilder script = new StringBuilder();
-        for (final String name : EXECUTABLES) {
-            script.append(String.format("cmp -s '%s' '%s' && ",
-                    new File(localBinaryDir, name).getAbsolutePath(),
-                    new File(INSTALL_DIR, name).getAbsolutePath()));
-        }
-        script.append("exit ").append(OsConstants.EALREADY).append(';');
-        try {
-            final int ret = Application.getRootShell().run(null, script.toString());
-            if (ret == OsConstants.EALREADY)
-                return willInstallAsMagiskModule() ? YES | MAGISK : YES | SYSTEM;
-            else
-                return willInstallAsMagiskModule() ? NO | MAGISK : NO | SYSTEM;
-        } catch (final IOException ignored) {
-            return ERROR;
-        }
-    }
-
-    public void ensureToolsAvailable() throws FileNotFoundException {
-        synchronized (lock) {
-            if (areToolsAvailable == null) {
-                try {
-                    Log.d(TAG, extract() ? "Tools are now extracted into our private binary dir" :
-                            "Tools were already extracted into our private binary dir");
-                    areToolsAvailable = true;
-                } catch (final IOException e) {
-                    Log.e(TAG, "The wg and wg-quick tools are not available", e);
-                    areToolsAvailable = false;
-                }
-            }
-            if (!areToolsAvailable)
-                throw new FileNotFoundException(
-                        context.getString(R.string.tools_unavailable_error));
-        }
-    }
-
-    public int install() throws NoRootException, IOException {
-        return willInstallAsMagiskModule() ? installMagisk() : installSystem();
-    }
-
-    private int installMagisk() throws NoRootException, IOException {
-        extract();
-        final StringBuilder script = new StringBuilder("set -ex; ");
-
-        script.append("trap 'rm -rf /sbin/.magisk/img/wireguard' INT TERM EXIT; ");
-        script.append(String.format("rm -rf /sbin/.magisk/img/wireguard/; mkdir -p /sbin/.magisk/img/wireguard%s; ", INSTALL_DIR));
-        script.append(String.format("printf 'name=WireGuard Command Line Tools\nversion=%s\nversionCode=%s\nauthor=zx2c4\ndescription=Command line tools for WireGuard\nminMagisk=1500\n' > /sbin/.magisk/img/wireguard/module.prop; ", BuildConfig.VERSION_NAME, BuildConfig.VERSION_CODE));
-        script.append("touch /sbin/.magisk/img/wireguard/auto_mount; ");
-        for (final String name : EXECUTABLES) {
-            final File destination = new File("/sbin/.magisk/img/wireguard" + INSTALL_DIR, name);
-            script.append(String.format("cp '%s' '%s'; chmod 755 '%s'; chcon 'u:object_r:system_file:s0' '%s' || true; ",
-                    new File(localBinaryDir, name), destination, destination, destination));
-        }
-        script.append("trap - INT TERM EXIT;");
-
-        try {
-            return Application.getRootShell().run(null, script.toString()) == 0 ? YES | MAGISK : ERROR;
-        } catch (final IOException ignored) {
-            return ERROR;
-        }
-    }
-
-    private int installSystem() throws NoRootException, IOException {
-        if (INSTALL_DIR == null)
-            return OsConstants.ENOENT;
-        extract();
-        final StringBuilder script = new StringBuilder("set -ex; ");
-        script.append("trap 'mount -o ro,remount /system' EXIT; mount -o rw,remount /system; ");
-        for (final String name : EXECUTABLES) {
-            final File destination = new File(INSTALL_DIR, name);
-            script.append(String.format("cp '%s' '%s'; chmod 755 '%s'; restorecon '%s' || true; ",
-                    new File(localBinaryDir, name), destination, destination, destination));
-        }
-        try {
-            return Application.getRootShell().run(null, script.toString()) == 0 ? YES | SYSTEM : ERROR;
-        } catch (final IOException ignored) {
-            return ERROR;
-        }
-    }
-
-    public boolean extract() throws IOException {
-        localBinaryDir.mkdirs();
-        final File files[] = new File[EXECUTABLES.length];
-        boolean allExist = true;
-        for (int i = 0; i < files.length; ++i) {
-            files[i] = new File(localBinaryDir, EXECUTABLES[i]);
-            allExist &= files[i].exists();
-        }
-        if (allExist)
-            return false;
-        for (int i = 0; i < files.length; ++i) {
-            if (!SharedLibraryLoader.extractLibrary(context, EXECUTABLES[i], files[i]))
-                throw new FileNotFoundException("Unable to find " + EXECUTABLES[i]);
-            if (!files[i].setExecutable(true, false))
-                throw new IOException("Unable to mark " + files[i].getAbsolutePath() + " as executable");
-        }
-        return true;
-    }
-
-    private boolean willInstallAsMagiskModule() {
-        synchronized (lock) {
-            if (installAsMagiskModule == null) {
-                try {
-                    installAsMagiskModule = Application.getRootShell().run(null, "[ -d /sbin/.magisk/mirror -a -d /sbin/.magisk/img -a ! -f /cache/.disable_magisk ]") == OsConstants.EXIT_SUCCESS;
-                } catch (final Exception ignored) {
-                    installAsMagiskModule = false;
-                }
-            }
-            return installAsMagiskModule;
-        }
-    }
-}