检测具有root权限执行几种方法

简书链接:检测具有root权限执行几种方法
文章字数：244,阅读全文大约需要1分钟

package sg.vantagepoint.util;
 
import android.os.Build;
import java.io.File;
 
public class RootDetection {
    public RootDetection() {
        super();
    }
 
    public static boolean checkRoot1() {
        boolean bool = false;
        String[] array_string = System.getenv("PATH").split(":");
        int i = array_string.length;
        int i1 = 0;
        while(i1 < i) {
            if(new File(array_string[i1], "su").exists()) {
                bool = true;
            }
            else {
                ++i1;
                continue;
            }
 
            return bool;
        }
 
        return bool;
    }
 
    public static boolean checkRoot2() {
        String string0 = Build.TAGS;
        boolean bool = string0 == null || !string0.contains("test-keys") ? false : true;
        return bool;
    }
 
    public static boolean checkRoot3() {
        boolean bool = true;
        String[] array_string = new String[]{"/system/app/Superuser.apk", "/system/xbin/daemonsu", "/system/etc/init.d/99SuperSUDaemon",
                "/system/bin/.ext/.su", "/system/etc/.has_su_daemon", "/system/etc/.installed_su_daemon",
                "/dev/com.koushikdutta.superuser.daemon/"};
        int i = array_string.length;
        int i1 = 0;
        while(true) {
            if(i1 >= i) {
                return false;
            }
            else if(!new File(array_string[i1]).exists()) {
                ++i1;
                continue;
            }
 
            return bool;
        }
 
        return false;
    }
}

private boolean loggingEnabled = true;
private final Context mContext;

public RootBeer(Context context) {
    this.mContext = context;
}

public boolean isRooted() {
    return detectRootManagementApps() || detectPotentiallyDangerousApps() || checkForBinary("su") || checkForDangerousProps() || checkForRWPaths() || detectTestKeys() || checkSuExists() || checkForRootNative();
}

public boolean isRootedWithoutBusyBoxCheck() {
    return detectRootManagementApps() || detectPotentiallyDangerousApps() || checkForBinary("su") || checkForDangerousProps() || checkForRWPaths() || detectTestKeys() || checkSuExists() || checkForRootNative();
}

public boolean detectTestKeys() {
    String buildTags = Build.TAGS;
    return buildTags != null && buildTags.contains("test-keys");
}

public boolean detectRootManagementApps() {
    return detectRootManagementApps(null);
}

public boolean detectRootManagementApps(String[] additionalRootManagementApps) {
    ArrayList<String> packages = new ArrayList();
    packages.addAll(Arrays.asList(Const.knownRootAppsPackages));
    if (additionalRootManagementApps != null && additionalRootManagementApps.length > 0) {
        packages.addAll(Arrays.asList(additionalRootManagementApps));
    }
    return isAnyPackageFromListInstalled(packages);
}

public boolean detectPotentiallyDangerousApps() {
    return detectPotentiallyDangerousApps(null);
}

public boolean detectPotentiallyDangerousApps(String[] additionalDangerousApps) {
    ArrayList<String> packages = new ArrayList();
    packages.addAll(Arrays.asList(Const.knownDangerousAppsPackages));
    if (additionalDangerousApps != null && additionalDangerousApps.length > 0) {
        packages.addAll(Arrays.asList(additionalDangerousApps));
    }
    return isAnyPackageFromListInstalled(packages);
}

public boolean detectRootCloakingApps() {
    return detectRootCloakingApps(null) || (canLoadNativeLibrary() && !checkForNativeLibraryReadAccess());
}

public boolean detectRootCloakingApps(String[] additionalRootCloakingApps) {
    ArrayList<String> packages = new ArrayList();
    packages.addAll(Arrays.asList(Const.knownRootCloakingPackages));
    if (additionalRootCloakingApps != null && additionalRootCloakingApps.length > 0) {
        packages.addAll(Arrays.asList(additionalRootCloakingApps));
    }
    return isAnyPackageFromListInstalled(packages);
}

public boolean checkForSuBinary() {
    return checkForBinary("su");
}

public boolean checkForBusyBoxBinary() {
    return checkForBinary("busybox");
}

public boolean checkForBinary(String filename) {
    boolean result = false;
    for (String path : Const.suPaths) {
        if (new File(path + filename).exists()) {
            result = true;
        }
    }
    return result;
}

private boolean isAnyPackageFromListInstalled(List<String> packages) {
    boolean result = false;
    PackageManager pm = this.mContext.getPackageManager();
    for (String packageName : packages) {
        try {
            pm.getPackageInfo(packageName, 0);
            result = true;
        } catch (NameNotFoundException e) {
        }
    }
    return result;
}

public boolean checkForDangerousProps() {
    Exception e;
    Throwable th;
    BufferedReader bufferedReader = null;
    boolean result = false;
    try {
        ProcessBuilder pb = new ProcessBuilder(new String[]{"getprop", "ro.debuggable"});
        pb.redirectErrorStream(true);
        BufferedReader in = new BufferedReader(new InputStreamReader(pb.start().getInputStream()));
        try {
            String str = "";
            str = in.readLine();
            if (str != null && str.equals("1")) {
                result = true;
            }
            if (result) {
                bufferedReader = in;
            } else {
                pb = new ProcessBuilder(new String[]{"getprop", "ro.secure"});
                pb.redirectErrorStream(true);
                bufferedReader = new BufferedReader(new InputStreamReader(pb.start().getInputStream()));
                str = bufferedReader.readLine();
                if (str != null && str.equals("0")) {
                    result = true;
                }
            }
            SysHelper.close(bufferedReader);
            return result;
        } catch (Exception e2) {
            e = e2;
            bufferedReader = in;
            try {
                e.printStackTrace();
                SysHelper.close(bufferedReader);
                return false;
            } catch (Throwable th2) {
                th = th2;
                SysHelper.close(bufferedReader);
                throw th;
            }
        } catch (Throwable th3) {
            th = th3;
            bufferedReader = in;
            SysHelper.close(bufferedReader);
            throw th;
        }
    } catch (Exception e3) {
        e = e3;
        e.printStackTrace();
        SysHelper.close(bufferedReader);
        return false;
    }
}

public boolean checkForRWPaths() {
    Throwable th;
    BufferedReader in = null;
    boolean result = false;
    try {
        ProcessBuilder processBuilder = new ProcessBuilder(new String[]{"mount"});
        processBuilder.redirectErrorStream(true);
        Process mProcess = processBuilder.start();
        BufferedReader in2 = new BufferedReader(new InputStreamReader(mProcess.getInputStream()));
        while (true) {
            try {
                String line = in2.readLine();
                if (line != null) {
                    String[] args = line.split(" ");
                    if (args.length >= 4) {
                        String mountPoint = args[1];
                        String mountOptions = args[3];
                        for (String pathToCheck : Const.pathsThatShouldNotBeWrtiable) {
                            if (mountPoint.equalsIgnoreCase(pathToCheck)) {
                                for (String option : mountOptions.split(",")) {
                                    if (option.equalsIgnoreCase("rw")) {
                                        result = true;
                                        break;
                                    }
                                }
                            }
                        }
                    }
                } else {
                    int exitValue = mProcess.waitFor();
                    SysHelper.close(in2);
                    in = in2;
                    return result;
                }
            } catch (Exception e) {
                in = in2;
            } catch (Throwable th2) {
                th = th2;
                in = in2;
            }
        }
    } catch (Exception e2) {
        SysHelper.close(in);
        return false;
    } catch (Throwable th3) {
        th = th3;
        SysHelper.close(in);
        throw th;
    }
}

public boolean checkSuExists() {
    boolean z = true;
    BufferedReader in = null;
    try {
        ProcessBuilder pb = new ProcessBuilder(new String[]{"which", "su"});
        pb.redirectErrorStream(false);
        Process mProcess = pb.start();
        BufferedReader in2 = new BufferedReader(new InputStreamReader(mProcess.getInputStream()));
        try {
            String line = in2.readLine();
            int exitValue = mProcess.waitFor();
            SysHelper.close(in2);
            if (line == null || !line.endsWith("su")) {
                z = false;
            }
            in = in2;
            return z;
        } catch (Throwable th) {
            in = in2;
            if (in != null) {
                SysHelper.close(in);
            }
            return false;
        }
    } catch (Throwable th2) {
        if (in != null) {
            SysHelper.close(in);
        }
        return false;
    }
}

public boolean checkForNativeLibraryReadAccess() {
    return true;
}

public boolean canLoadNativeLibrary() {
    return true;
}

public boolean checkForRootNative() {
    if (!canLoadNativeLibrary()) {
        return false;
    }
    String binaryName = "su";
    String[] paths = new String[Const.suPaths.length];
    for (int i = 0; i < paths.length; i++) {
        paths[i] = Const.suPaths[i] + binaryName;
    }
    if (FileNative.checkForRoot(paths) > 0) {
        return true;
    }
    return false;
}

https://www.anquanke.com/post/id/86201

其中

/**
 * 并不能决定什么 ，Permission denied 哪怕root了。
 * @return
 */
public static boolean checkSuExistsByWhich() {
    boolean z = true;
    BufferedReader in = null;
    try {
        ProcessBuilder pb = new ProcessBuilder(new String[]{"which", "su"});
        pb.redirectErrorStream(false);
        Process mProcess = pb.start();
        BufferedReader in2 = new BufferedReader(new InputStreamReader(mProcess.getInputStream()));
        try {
            String line = in2.readLine();
            int exitValue = mProcess.waitFor();
            close(in2);
            if (line == null || !line.endsWith("su")) {
                z = false;
            }
            in = in2;
            return z;
        } catch (Throwable th) {
            in = in2;
            if (in != null) {
                close(in);
            }
            return false;
        }
    } catch (Throwable th2) {
        if (in != null) {
            close(in);
        }
        return false;
    }
}

方法不靠谱，有root也会提示权限禁止，另外还可以反射判断secure是否为1，来判断 以及 ro.debuggalbe，如果调试为1 或者安全为0 就是root了。

package android.os;

public class Build {
    private static final String TAG = "Build";

    /** Value used for when a build property is unknown. */
    public static final String UNKNOWN = "unknown";

    /** Either a changelist number, or a label like "M4-rc20". */
    public static final String ID = getString("ro.build.id");

    /** A build ID string meant for displaying to the user */
    public static final String DISPLAY = getString("ro.build.display.id");

    /** The name of the overall product. */
    public static final String PRODUCT = getString("ro.product.name");

    /** The name of the industrial design. */
    public static final String DEVICE = getString("ro.product.device");