如何将自己的VPN设置添加到系统VPN设置页面？

Question

VPN有系统设置。我将根据VpnService类添加额外的VPN服务。我看到有一个方法setConfigureIntent看起来类似于我需要的东西，但我没有看到任何使用示例。

  

public VpnService.Builder setConfigureIntent (PendingIntent intent)

     

在API级别14中添加   将PendingIntent设置为用户配置VPN连接的活动。如果未设置，则配置按钮将不会显示在系统管理的对话框中。

VPN设置页面在这里：

，。

实际上我只需要在系统VPN设置中添加一个按钮，点击显示具有VPN特定设置的自定义对话框。

Answer 1

以下是@shoe rat提出的使用Java Reflection的起点：

package com.nikola.despotoski.whatever;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

public class VpnSetter {

    private static Map<String , Class<?>> getMappedFields(){
        Map<String , Class<?>> fieldsAndTypes = new HashMap<String, Class<?>>();
        fieldsAndTypes.put("name", String.class);        // 0
        fieldsAndTypes.put("type" , int.class);   // 1
        fieldsAndTypes.put("server", String.class);        // 2
        fieldsAndTypes.put("username", String.class);
        fieldsAndTypes.put("password", String.class);
        fieldsAndTypes.put("dnsServers", String.class);
        fieldsAndTypes.put("searchDomains", String.class);
        fieldsAndTypes.put("routes", String.class);
        fieldsAndTypes.put("mppe", boolean.class);
        fieldsAndTypes.put("l2tpSecret", String.class);
        fieldsAndTypes.put("ipsecIdentifier", String.class);
        fieldsAndTypes.put("ipsecSecret", String.class);
        fieldsAndTypes.put("ipsecUserCert", String.class);
        fieldsAndTypes.put("ipsecCaCert", String.class);
        fieldsAndTypes.put("saveLogin", boolean.class);
        return fieldsAndTypes;
    }
    public static final Set<String> VPN_PROFILE_KEYS = getMappedFields().keySet(); // contains keys for quicker generation of key-value map for each 

    public static void addVpnProfile(String vpnProfileKey, Map<String, Object> values) throws ClassNotFoundException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException, InvocationTargetException, InstantiationException, NoSuchMethodException{
        Class<?> vpnSettings = Class.forName("com.android.settings.vpn2.VpnSettings");
        Class<?>[] privateVpnSettingsClasses = vpnSettings.getDeclaredClasses();
        Class<?> vpnPreference = null;
        Class<?> vpnProfileClass = Class.forName("com.android.settings.vpn2.VpnProfile");
        for(Class<?> priv :privateVpnSettingsClasses ){
            if(priv.getName().equals("VpnPreference")){
                vpnPreference = priv;
                break;
            }
        }
        Field vpnProfileFromVpnPreferenceField = vpnPreference.getDeclaredField("mProfile");
        vpnProfileFromVpnPreferenceField.setAccessible(true);
        Object vpnProfile = vpnProfileFromVpnPreferenceField.get(vpnProfileClass);
        Constructor<?> constructor = vpnProfileFromVpnPreferenceField.getClass().getConstructors()[0];
        constructor.setAccessible(true);
        vpnProfile = constructor.newInstance(vpnProfileKey);//creating new instance of VpnProfile class
        Map<String, Class<?>> vpnProfileMap = getMappedFields();
        Iterator<String> profileKeysIterator = vpnProfileMap.keySet().iterator();
        while(profileKeysIterator.hasNext()){
            String key = profileKeysIterator.next();
            Field field = vpnProfile.getClass().getField(key);
            field.setAccessible(true);
            if(vpnProfileMap.get(key).equals(String.class) && values.get(key)!=null){
                String s = new String();
                field.set(s, "value");//change this
            }else if(vpnProfileMap.get(key).equals(boolean.class) && values.get(key)!=null){
                int i = 0;
                field.setInt(i, 1111111);// change this
            }else if(values.get(key)!=null){
                boolean  b = false;
                field.setBoolean(b, true);// change this
            }

        }
        vpnSettings = Class.forName("com.android.settings.vpn.VpnSettings"); //time to add it to settings
        Method addProfileMethod = vpnSettings.getDeclaredMethod("addProfile", vpnProfile.getClass()); 
        addProfileMethod.setAccessible(true);
        addProfileMethod.invoke(vpnSettings, vpnProfile);
    }
}

我没时间测试它，但肯定会给你一个起点。我不确定访问此隐藏API需要root访问权限。请记住，这可能会抛出一些SecurityExceptions或IllegalAccessException。

Answer 2

如果你找不到上课，你可以尝试一下。

Context vpnset =createPackageContext("com.android.settings",Context.CONTEXT_INCLUDE_CODE | Context.CONTEXT_IGNORE_SECURITY);
Class<?> vpnSettings = Class.forName("com.android.settings.vpn2.VpnSettings",true,vpnset.getClassLoader());