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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.app;
     18 
     19 import android.annotation.NonNull;
     20 import android.util.SparseIntArray;
     21 
     22 import com.android.internal.util.function.QuadFunction;
     23 import com.android.internal.util.function.TriFunction;
     24 
     25 /**
     26  * App ops service local interface.
     27  *
     28  * @hide Only for use within the system server.
     29  */
     30 public abstract class AppOpsManagerInternal {
     31     /** Interface to override app ops checks via composition */
     32     public interface CheckOpsDelegate {
     33         /**
     34          * Allows overriding check operation behavior.
     35          *
     36          * @param code The op code to check.
     37          * @param uid The UID for which to check.
     38          * @param packageName The package for which to check.
     39          * @param superImpl The super implementation.
     40          * @param raw Whether to check the raw op i.e. not interpret the mode based on UID state.
     41          * @return The app op check result.
     42          */
     43         int checkOperation(int code, int uid, String packageName, boolean raw,
     44                 QuadFunction<Integer, Integer, String, Boolean, Integer> superImpl);
     45 
     46         /**
     47          * Allows overriding check audio operation behavior.
     48          *
     49          * @param code The op code to check.
     50          * @param usage The audio op usage.
     51          * @param uid The UID for which to check.
     52          * @param packageName The package for which to check.
     53          * @param superImpl The super implementation.
     54          * @return The app op check result.
     55          */
     56         int checkAudioOperation(int code, int usage, int uid, String packageName,
     57                 QuadFunction<Integer, Integer, Integer, String, Integer> superImpl);
     58 
     59         /**
     60          * Allows overriding note operation behavior.
     61          *
     62          * @param code The op code to note.
     63          * @param uid The UID for which to note.
     64          * @param packageName The package for which to note.
     65          * @param superImpl The super implementation.
     66          * @return The app op note result.
     67          */
     68         int noteOperation(int code, int uid, String packageName,
     69                 TriFunction<Integer, Integer, String, Integer> superImpl);
     70     }
     71 
     72     /**
     73      * Set the currently configured device and profile owners.  Specifies the package uid (value)
     74      * that has been configured for each user (key) that has one.  These will be allowed privileged
     75      * access to app ops for their user.
     76      */
     77     public abstract void setDeviceAndProfileOwners(SparseIntArray owners);
     78 
     79     /**
     80      * Sets the app-ops mode for a certain app-op and uid.
     81      *
     82      * <p>Similar as {@link AppOpsManager#setUidMode} but does not require the package manager to be
     83      * working. Hence this can be used very early during boot.
     84      *
     85      * <p>Only for internal callers. Does <u>not</u> verify that package name belongs to uid.
     86      *
     87      * @param code The op code to set.
     88      * @param uid The UID for which to set.
     89      * @param mode The new mode to set.
     90      */
     91     public abstract void setUidMode(int code, int uid, int mode);
     92 
     93     /**
     94      * Set all {@link #setMode (package) modes} for this uid to the default value.
     95      *
     96      * @param code The app-op
     97      * @param uid The uid
     98      */
     99     public abstract void setAllPkgModesToDefault(int code, int uid);
    100 
    101     /**
    102      * Get the (raw) mode of an app-op.
    103      *
    104      * <p>Does <u>not</u> verify that package belongs to uid. The caller needs to do that.
    105      *
    106      * @param code The code of the op
    107      * @param uid The uid of the package the op belongs to
    108      * @param packageName The package the op belongs to
    109      *
    110      * @return The mode of the op
    111      */
    112     public abstract @AppOpsManager.Mode int checkOperationUnchecked(int code, int uid,
    113             @NonNull String packageName);
    114 }
    115