0672f7e405
Settings read/write errors were silently ignored. Report them via a SettingsException so that the caller can handle them. This allows to log a proper error message, and will also allow to fallback to a different settings method in case of failure.
175 lines
6.8 KiB
Java
175 lines
6.8 KiB
Java
package com.genymobile.scrcpy.wrappers;
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import com.genymobile.scrcpy.Ln;
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import com.genymobile.scrcpy.SettingsException;
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import android.annotation.SuppressLint;
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import android.os.Bundle;
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import android.os.IBinder;
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import java.io.Closeable;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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public class ContentProvider implements Closeable {
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public static final String TABLE_SYSTEM = "system";
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public static final String TABLE_SECURE = "secure";
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public static final String TABLE_GLOBAL = "global";
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// See android/providerHolder/Settings.java
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private static final String CALL_METHOD_GET_SYSTEM = "GET_system";
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private static final String CALL_METHOD_GET_SECURE = "GET_secure";
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private static final String CALL_METHOD_GET_GLOBAL = "GET_global";
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private static final String CALL_METHOD_PUT_SYSTEM = "PUT_system";
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private static final String CALL_METHOD_PUT_SECURE = "PUT_secure";
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private static final String CALL_METHOD_PUT_GLOBAL = "PUT_global";
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private static final String CALL_METHOD_USER_KEY = "_user";
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private static final String NAME_VALUE_TABLE_VALUE = "value";
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private final ActivityManager manager;
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// android.content.IContentProvider
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private final Object provider;
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private final String name;
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private final IBinder token;
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private Method callMethod;
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private int callMethodVersion;
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private Object attributionSource;
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ContentProvider(ActivityManager manager, Object provider, String name, IBinder token) {
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this.manager = manager;
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this.provider = provider;
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this.name = name;
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this.token = token;
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}
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@SuppressLint("PrivateApi")
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private Method getCallMethod() throws NoSuchMethodException {
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if (callMethod == null) {
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try {
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Class<?> attributionSourceClass = Class.forName("android.content.AttributionSource");
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callMethod = provider.getClass().getMethod("call", attributionSourceClass, String.class, String.class, String.class, Bundle.class);
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callMethodVersion = 0;
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} catch (NoSuchMethodException | ClassNotFoundException e0) {
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// old versions
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try {
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callMethod = provider.getClass()
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.getMethod("call", String.class, String.class, String.class, String.class, String.class, Bundle.class);
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callMethodVersion = 1;
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} catch (NoSuchMethodException e1) {
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try {
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callMethod = provider.getClass().getMethod("call", String.class, String.class, String.class, String.class, Bundle.class);
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callMethodVersion = 2;
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} catch (NoSuchMethodException e2) {
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callMethod = provider.getClass().getMethod("call", String.class, String.class, String.class, Bundle.class);
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callMethodVersion = 3;
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}
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}
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}
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}
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return callMethod;
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}
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@SuppressLint("PrivateApi")
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private Object getAttributionSource()
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throws ClassNotFoundException, NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException {
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if (attributionSource == null) {
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Class<?> cl = Class.forName("android.content.AttributionSource$Builder");
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Object builder = cl.getConstructor(int.class).newInstance(ServiceManager.USER_ID);
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cl.getDeclaredMethod("setPackageName", String.class).invoke(builder, ServiceManager.PACKAGE_NAME);
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attributionSource = cl.getDeclaredMethod("build").invoke(builder);
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}
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return attributionSource;
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}
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private Bundle call(String callMethod, String arg, Bundle extras)
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throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, InstantiationException, IllegalAccessException {
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try {
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Method method = getCallMethod();
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Object[] args;
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switch (callMethodVersion) {
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case 0:
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args = new Object[]{getAttributionSource(), "settings", callMethod, arg, extras};
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break;
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case 1:
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args = new Object[]{ServiceManager.PACKAGE_NAME, null, "settings", callMethod, arg, extras};
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break;
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case 2:
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args = new Object[]{ServiceManager.PACKAGE_NAME, "settings", callMethod, arg, extras};
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break;
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default:
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args = new Object[]{ServiceManager.PACKAGE_NAME, callMethod, arg, extras};
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break;
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}
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return (Bundle) method.invoke(provider, args);
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} catch (InvocationTargetException | IllegalAccessException | NoSuchMethodException | ClassNotFoundException | InstantiationException e) {
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Ln.e("Could not invoke method", e);
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throw e;
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}
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}
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public void close() {
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manager.removeContentProviderExternal(name, token);
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}
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private static String getGetMethod(String table) {
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switch (table) {
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case TABLE_SECURE:
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return CALL_METHOD_GET_SECURE;
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case TABLE_SYSTEM:
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return CALL_METHOD_GET_SYSTEM;
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case TABLE_GLOBAL:
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return CALL_METHOD_GET_GLOBAL;
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default:
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throw new IllegalArgumentException("Invalid table: " + table);
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}
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}
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private static String getPutMethod(String table) {
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switch (table) {
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case TABLE_SECURE:
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return CALL_METHOD_PUT_SECURE;
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case TABLE_SYSTEM:
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return CALL_METHOD_PUT_SYSTEM;
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case TABLE_GLOBAL:
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return CALL_METHOD_PUT_GLOBAL;
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default:
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throw new IllegalArgumentException("Invalid table: " + table);
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}
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}
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public String getValue(String table, String key) throws SettingsException {
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String method = getGetMethod(table);
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Bundle arg = new Bundle();
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arg.putInt(CALL_METHOD_USER_KEY, ServiceManager.USER_ID);
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try {
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Bundle bundle = call(method, key, arg);
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if (bundle == null) {
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return null;
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}
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return bundle.getString("value");
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} catch (Exception e) {
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throw new SettingsException(table, "get", key, null, e);
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}
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}
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public void putValue(String table, String key, String value) throws SettingsException {
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String method = getPutMethod(table);
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Bundle arg = new Bundle();
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arg.putInt(CALL_METHOD_USER_KEY, ServiceManager.USER_ID);
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arg.putString(NAME_VALUE_TABLE_VALUE, value);
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try {
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call(method, key, arg);
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} catch (Exception e) {
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throw new SettingsException(table, "put", key, value, e);
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}
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}
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}
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