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Commit 6dc1bd35 authored by Rhed Jao's avatar Rhed Jao
Browse files

Support launching apps by package name without visibility 

PackageManager#getLaunchIntentForPackage returns null if the caller
is not allowed to query the package. This cl adds a new api using
the same implementation with the #getLaunchIntentForPackage. Instead
of returning the Intent, it returns the IntentSender which is not
restricted by package visibility.

Bug: 175336608
Test: atest android.content.pm.cts.PackageManagerTest
Change-Id: I43524f26b27b2278417dae1a75bcdeb0447b8273
parent 3c2d1e7e

core/api/current.txt

+1 −0
Original line number Diff line number Diff line
@@ -12474,6 +12474,7 @@ package android.content.pm { 
    method public abstract int getInstantAppCookieMaxBytes();

    method @NonNull public abstract android.content.pm.InstrumentationInfo getInstrumentationInfo(@NonNull android.content.ComponentName, int) throws android.content.pm.PackageManager.NameNotFoundException;

    method @Nullable public abstract android.content.Intent getLaunchIntentForPackage(@NonNull String);

    method @NonNull public android.content.IntentSender getLaunchIntentSenderForPackage(@NonNull String);

    method @Nullable public abstract android.content.Intent getLeanbackLaunchIntentForPackage(@NonNull String);

    method @NonNull public java.util.Set<java.lang.String> getMimeGroup(@NonNull String);

    method @NonNull public android.content.pm.ModuleInfo getModuleInfo(@NonNull String, int) throws android.content.pm.PackageManager.NameNotFoundException;

core/java/android/app/ApplicationPackageManager.java

+10 −0
Original line number Diff line number Diff line
@@ -312,6 +312,16 @@ public class ApplicationPackageManager extends PackageManager { 
        return intent;

    }



    @Override

    public @NonNull IntentSender getLaunchIntentSenderForPackage(@NonNull String packageName) {

        try {

            return mPM.getLaunchIntentSenderForPackage(packageName, mContext.getPackageName(),

                    mContext.getAttributionTag(), getUserId());

        } catch (RemoteException e) {

            throw e.rethrowFromSystemServer();

        }

    }



    @Override

    public int[] getPackageGids(String packageName) throws NameNotFoundException {

        return getPackageGids(packageName, 0);

core/java/android/content/pm/IPackageManager.aidl

+3 −0
Original line number Diff line number Diff line
@@ -757,6 +757,9 @@ interface IPackageManager { 


    void requestChecksums(in String packageName, boolean includeSplits, int optional, int required, in List trustedInstallers, in IOnChecksumsReadyListener onChecksumsReadyListener, int userId);



    IntentSender getLaunchIntentSenderForPackage(String packageName, String callingPackage,

                String featureId, int userId);



    //------------------------------------------------------------------------

    //

    // The following binder interfaces have been moved to IPermissionManager

core/java/android/content/pm/PackageManager.java

+27 −0
Original line number Diff line number Diff line
@@ -4473,12 +4473,17 @@ public abstract class PackageManager { 
     * main activity in the category {@link Intent#CATEGORY_LAUNCHER}. Returns

     * <code>null</code> if neither are found.

     *

     * <p>Consider using {@link #getLaunchIntentSenderForPackage(String)} if

     * the caller is not allowed to query for the <code>packageName</code>.

     *

     * @param packageName The name of the package to inspect.

     *

     * @return A fully-qualified {@link Intent} that can be used to launch the

     * main activity in the package. Returns <code>null</code> if the package

     * does not contain such an activity, or if <em>packageName</em> is not

     * recognized.

     *

     * @see #getLaunchIntentSenderForPackage(String)

     */

    public abstract @Nullable Intent getLaunchIntentForPackage(@NonNull String packageName);
@@ -4512,6 +4517,28 @@ public abstract class PackageManager { 
    @SuppressWarnings("HiddenAbstractMethod")

    public abstract @Nullable Intent getCarLaunchIntentForPackage(@NonNull String packageName);



    /**

     * Returns an {@link IntentSender} that can be used to launch a front-door activity in a

     * package. This is used, for example, to implement an "open" button when browsing through

     * packages. The current implementation is the same with

     * {@link #getLaunchIntentForPackage(String)}. Instead of returning the {@link Intent}, it

     * returns the {@link IntentSender} which is not restricted by the package visibility.

     *

     * <p>The caller can invoke

     * {@link IntentSender#sendIntent(Context, int, Intent, IntentSender.OnFinished, Handler)}

     * to launch the activity. An {@link IntentSender.SendIntentException} is thrown if the

     * package does not contain such an activity, or if <em>packageName</em> is not recognized.

     *

     * @param packageName The name of the package to inspect.

     * @return Returns a {@link IntentSender} to launch the activity.

     *

     * @see #getLaunchIntentForPackage(String)

     */

    public @NonNull IntentSender getLaunchIntentSenderForPackage(@NonNull String packageName) {

        throw new UnsupportedOperationException("getLaunchIntentSenderForPackage not implemented"

                + "in subclass");

    }



    /**

     * Return an array of all of the POSIX secondary group IDs that have been

     * assigned to the given package.

services/core/java/com/android/server/pm/PackageManagerService.java

+52 −0
Original line number Diff line number Diff line
@@ -149,6 +149,7 @@ import android.app.AppOpsManager; 
import android.app.ApplicationPackageManager;

import android.app.BroadcastOptions;

import android.app.IActivityManager;

import android.app.PendingIntent;

import android.app.ResourcesManager;

import android.app.admin.IDevicePolicyManager;

import android.app.admin.SecurityLog;
@@ -161,6 +162,7 @@ import android.content.ComponentName; 
import android.content.ContentResolver;

import android.content.Context;

import android.content.IIntentReceiver;

import android.content.IIntentSender;

import android.content.Intent;

import android.content.IntentFilter;

import android.content.IntentSender;
@@ -28010,6 +28012,56 @@ public class PackageManagerService extends IPackageManager.Stub 
            }

        }

    }













    @Override













    public IntentSender getLaunchIntentSenderForPackage(String packageName, String callingPackage,













            String featureId, int userId) throws RemoteException {













        Objects.requireNonNull(packageName);













        final int callingUid = Binder.getCallingUid();













        enforceCrossUserPermission(callingUid, userId, false /* requireFullPermission */,













                false /* checkShell */, "get launch intent sender for package");













        final int packageUid = getPackageUid(callingPackage, 0 /* flags */, userId);













        if (!UserHandle.isSameApp(callingUid, packageUid)) {













            throw new SecurityException("getLaunchIntentSenderForPackage() from calling uid: "













                    + callingUid + " does not own package: " + callingPackage);













        }

























        // Using the same implementation with the #getLaunchIntentForPackage to get the ResolveInfo.













        // Pass the resolveForStart as true in queryIntentActivities to skip the app filtering.













        final Intent intentToResolve = new Intent(Intent.ACTION_MAIN);













        intentToResolve.addCategory(Intent.CATEGORY_INFO);













        intentToResolve.setPackage(packageName);













        String resolvedType = intentToResolve.resolveTypeIfNeeded(mContext.getContentResolver());













        List<ResolveInfo> ris = queryIntentActivitiesInternal(intentToResolve, resolvedType,













                0 /* flags */, 0 /* privateResolveFlags */, callingUid, userId,













                true /* resolveForStart */, false /* allowDynamicSplits */);













        if (ris == null || ris.size() <= 0) {













            intentToResolve.removeCategory(Intent.CATEGORY_INFO);













            intentToResolve.addCategory(Intent.CATEGORY_LAUNCHER);













            intentToResolve.setPackage(packageName);













            resolvedType = intentToResolve.resolveTypeIfNeeded(mContext.getContentResolver());













            ris = queryIntentActivitiesInternal(intentToResolve, resolvedType,













                    0 /* flags */, 0 /* privateResolveFlags */, callingUid, userId,













                    true /* resolveForStart */, false /* allowDynamicSplits */);













        }

























        final Intent intent = new Intent(intentToResolve);













        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);













        // For the case of empty result, no component name is assigned into the intent. A













        // non-launchable IntentSender which contains the failed intent is created. The













        // SendIntentException is thrown if the IntentSender#sendIntent is invoked.













        if (ris != null && !ris.isEmpty()) {













            intent.setClassName(ris.get(0).activityInfo.packageName,













                    ris.get(0).activityInfo.name);













        }













        final IIntentSender target = ActivityManager.getService().getIntentSenderWithFeature(













                ActivityManager.INTENT_SENDER_ACTIVITY, callingPackage,













                featureId, null /* token */, null /* resultWho */,













                1 /* requestCode */, new Intent[] { intent },













                resolvedType != null ? new String[] { resolvedType } : null,













                PendingIntent.FLAG_IMMUTABLE, null /* bOptions */, userId);













        return new IntentSender(target);













    }















}





























interface PackageSender {