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Commit 236abad7 authored by Makoto Onuki's avatar Makoto Onuki
Browse files

Support per-process Application class (package parser) 

Now the <process> tag supports `android:name`, which takes a custom
Application class name. If omitted, the system defaults to the
class set in the <application> tag, or the default class which is
`android.app.Application`.

Bug: 197264681
Test: atest CtsProcessTest
Test: atest PackageManagerServiceUnitTests
Change-Id: Iaf336cc34fe950c4b3d8887de557857f8c23dc83
parent 808fd192

core/java/android/content/pm/ApplicationInfo.java

+65 −2
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ import android.os.Parcel; 
import android.os.Parcelable;

import android.os.UserHandle;

import android.os.storage.StorageManager;

import android.util.ArrayMap;

import android.util.Printer;

import android.util.SparseArray;

import android.util.proto.ProtoOutputStream;
@@ -1533,6 +1534,15 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 


    private int mHiddenApiPolicy = HIDDEN_API_ENFORCEMENT_DEFAULT;



    /**

     * A map from a process name to an (custom) application class name in this package, derived

     * from the <processes> tag in the app's manifest. This map may not contain all the process

     * names. Processses not in this map will use the default app class name,

     * which is {@link #className}, or the default class {@link android.app.Application}.

     */

    @Nullable

    private ArrayMap<String, String> mAppClassNamesByProcess;



    public void dump(Printer pw, String prefix) {

        dump(pw, prefix, DUMP_FLAG_ALL);

    }
@@ -1540,9 +1550,15 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
    /** @hide */

    public void dump(Printer pw, String prefix, int dumpFlags) {

        super.dumpFront(pw, prefix);

        if ((dumpFlags & DUMP_FLAG_DETAILS) != 0 && className != null) {

        if ((dumpFlags & DUMP_FLAG_DETAILS) != 0) {

            if (className != null) {

                pw.println(prefix + "className=" + className);

            }

            for (int i = 0; i < ArrayUtils.size(mAppClassNamesByProcess); i++) {

                pw.println(prefix + "  process=" + mAppClassNamesByProcess.keyAt(i)

                        + " className=" + mAppClassNamesByProcess.valueAt(i));

            }

        }

        if (permission != null) {

            pw.println(prefix + "permission=" + permission);

        }
@@ -1967,6 +1983,16 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
        dest.writeInt(nativeHeapZeroInitialized);

        sForBoolean.parcel(requestRawExternalStorageAccess, dest, parcelableFlags);

        dest.writeLong(createTimestamp);

        if (mAppClassNamesByProcess == null) {

            dest.writeInt(0);

        } else {

            final int size = mAppClassNamesByProcess.size();

            dest.writeInt(size);

            for (int i = 0; i < size; i++) {

                dest.writeString(mAppClassNamesByProcess.keyAt(i));

                dest.writeString(mAppClassNamesByProcess.valueAt(i));

            }

        }

    }



    public static final @android.annotation.NonNull Parcelable.Creator<ApplicationInfo> CREATOR
@@ -2055,6 +2081,13 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
        nativeHeapZeroInitialized = source.readInt();

        requestRawExternalStorageAccess = sForBoolean.unparcel(source);

        createTimestamp = source.readLong();

        final int allClassesSize = source.readInt();

        if (allClassesSize > 0) {

            mAppClassNamesByProcess = new ArrayMap<>(allClassesSize);

            for (int i = 0; i < allClassesSize; i++) {

                mAppClassNamesByProcess.put(source.readString(), source.readString());

            }

        }

    }



    /**
@@ -2538,6 +2571,19 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
        requestRawExternalStorageAccess = value;

    }



    /**

     * Replaces {@link #mAppClassNamesByProcess}. This takes over the ownership of the passed map.

     * Do not modify the argument at the callsite.

     * {@hide}

     */

    public void setAppClassNamesByProcess(@Nullable ArrayMap<String, String> value) {

        if (ArrayUtils.size(value) == 0) {

            mAppClassNamesByProcess = null;

        } else {

            mAppClassNamesByProcess = value;

        }

    }



    /** {@hide} */

    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)

    public String getCodePath() { return scanSourceDir; }
@@ -2568,4 +2614,21 @@ public class ApplicationInfo extends PackageItemInfo implements Parcelable { 
    public int getNativeHeapZeroInitialized() {

        return nativeHeapZeroInitialized;

    }



    /**

     * Return the application class name defined in the manifest. The class name set in the

     * <processes> tag for this process, then return it. Otherwise it'll return the class

     * name set in the <application> tag. If neither is set, it'll return null.

     * @hide

     */

    @Nullable

    public String getCustomApplicationClassNameForProcess(String processName) {

        if (mAppClassNamesByProcess != null) {

            String byProcess = mAppClassNamesByProcess.get(processName);

            if (byProcess != null) {

                return byProcess;

            }

        }

        return className;

    }

}

core/java/android/content/pm/parsing/ParsingPackage.java

+1 −0
Original line number Diff line number Diff line
@@ -118,6 +118,7 @@ public interface ParsingPackage extends ParsingPackageRead { 


    ParsingPackage addQueriesProvider(String authority);



    /** Sets a process name -> {@link ParsedProcess} map coming from the <processes> tag. */

    ParsingPackage setProcesses(@NonNull Map<String, ParsedProcess> processes);



    ParsingPackage asSplit(

core/java/android/content/pm/parsing/ParsingPackageImpl.java

+40 −0
Original line number Diff line number Diff line
@@ -62,6 +62,7 @@ import android.os.Parcel; 
import android.os.Parcelable;

import android.os.storage.StorageManager;

import android.text.TextUtils;

import android.util.ArrayMap;

import android.util.ArraySet;

import android.util.Pair;

import android.util.SparseArray;
@@ -297,6 +298,9 @@ public class ParsingPackageImpl implements ParsingPackage, ParsingPackageHidden, 
//    @DataClass.ParcelWith(ParsingUtils.StringPairListParceler.class)

    private List<Pair<String, ParsedIntentInfo>> preferredActivityFilters = emptyList();



    /**

     * Map from a process name to a {@link ParsedProcess}.

     */

    @NonNull

    private Map<String, ParsedProcess> processes = emptyMap();
@@ -1131,10 +1135,46 @@ public class ParsingPackageImpl implements ParsingPackage, ParsingPackageHidden, 
        appInfo.setSplitCodePaths(splitCodePaths);

        appInfo.setSplitResourcePaths(splitCodePaths);

        appInfo.setVersionCode(mLongVersionCode);

        appInfo.setAppClassNamesByProcess(buildAppClassNamesByProcess());



        return appInfo;

    }



    /**

     * Create a map from a process name to the custom application class for this process,

     * which comes from <processes><process android:name="xxx">.

     *

     * The original information is stored in {@link #processes}, but it's stored in

     * a form of: [process name] -[1:N]-> [package name] -[1:N]-> [class name].

     * We scan it and collect the process names and their app class names, only for this package.

     *

     * The resulting map only contains processes with a custom application class set.

     */

    @Nullable

    private ArrayMap<String, String> buildAppClassNamesByProcess() {

        if (processes == null) {

            return null;

        }

        final ArrayMap<String, String> ret = new ArrayMap<>(4);

        for (String processName : processes.keySet()) {

            final ParsedProcess process = processes.get(processName);

            final ArrayMap<String, String> appClassesByPackage =

                    process.getAppClassNamesByPackage();



            for (int i = 0; i < appClassesByPackage.size(); i++) {

                final String packageName = appClassesByPackage.keyAt(i);



                if (this.packageName.equals(packageName)) {

                    final String appClassName = appClassesByPackage.valueAt(i);

                    if (!TextUtils.isEmpty(appClassName)) {

                        ret.put(processName, appClassName);

                    }

                }

            }

        }

        return ret;

    }



    @Override

    public int describeContents() {

        return 0;

core/java/android/content/pm/parsing/component/ParsedProcess.java

+10 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ package android.content.pm.parsing.component; 
import android.annotation.NonNull;

import android.content.pm.ApplicationInfo;

import android.os.Parcelable;

import android.util.ArrayMap;



import java.util.Set;
@@ -37,6 +38,15 @@ public interface ParsedProcess extends Parcelable { 
    @NonNull

    String getName();



    /**

     * The app class names in this (potentially shared) process, from a package name to

     * the application class name.

     * It's a map, because in shared processes, different packages can have different application

     * classes.

     */

    @NonNull

    ArrayMap<String, String> getAppClassNamesByPackage();



    @ApplicationInfo.NativeHeapZeroInitialized

    int getNativeHeapZeroInitialized();

}

core/java/android/content/pm/parsing/component/ParsedProcessImpl.java

+58 −2
Original line number Diff line number Diff line
@@ -22,6 +22,7 @@ import android.annotation.NonNull; 
import android.content.pm.ApplicationInfo;

import android.os.Parcel;

import android.os.Parcelable;

import android.util.ArrayMap;

import android.util.ArraySet;



import com.android.internal.annotations.VisibleForTesting;
@@ -39,6 +40,11 @@ public class ParsedProcessImpl implements ParsedProcess { 


    @NonNull

    private String name;



    /** @see ParsedProcess#getAppClassNamesByPackage() */

    @NonNull

    private ArrayMap<String, String> appClassNamesByPackage = ArrayMap.EMPTY;



    @NonNull

    @DataClass.ParcelWith(Parcelling.BuiltIn.ForInternedStringSet.class)

    private Set<String> deniedPermissions = emptySet();
@@ -55,6 +61,8 @@ public class ParsedProcessImpl implements ParsedProcess { 


    public ParsedProcessImpl(@NonNull ParsedProcess other) {

        name = other.getName();

        appClassNamesByPackage = (other.getAppClassNamesByPackage().size() == 0)

                ? ArrayMap.EMPTY : new ArrayMap<>(other.getAppClassNamesByPackage());

        deniedPermissions = new ArraySet<>(other.getDeniedPermissions());

        gwpAsanMode = other.getGwpAsanMode();

        memtagMode = other.getMemtagMode();
@@ -66,6 +74,21 @@ public class ParsedProcessImpl implements ParsedProcess { 
        gwpAsanMode = other.getGwpAsanMode();

        memtagMode = other.getMemtagMode();

        nativeHeapZeroInitialized = other.getNativeHeapZeroInitialized();



        final ArrayMap<String, String> oacn = other.getAppClassNamesByPackage();

        for (int i = 0; i < oacn.size(); i++) {

            appClassNamesByPackage.put(oacn.keyAt(i), oacn.valueAt(i));

        }

    }



    /**

     * Sets a custom application name used in this process for a given package.

     */

    public void putAppClassNameForPackage(String packageName, String className) {

        if (appClassNamesByPackage.size() == 0) {

            appClassNamesByPackage = new ArrayMap<>(4);

        }

        appClassNamesByPackage.put(packageName, className);

    }
@@ -83,9 +106,14 @@ public class ParsedProcessImpl implements ParsedProcess { 
    //@formatter:off





    /**

     * Creates a new ParsedProcessImpl.

     *

     */

    @DataClass.Generated.Member

    public ParsedProcessImpl(

            @NonNull String name,

            @NonNull ArrayMap<String,String> appClassNamesByPackage,

            @NonNull Set<String> deniedPermissions,

            @ApplicationInfo.GwpAsanMode int gwpAsanMode,

            @ApplicationInfo.MemtagMode int memtagMode,
@@ -93,6 +121,9 @@ public class ParsedProcessImpl implements ParsedProcess { 
        this.name = name;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, name);

        this.appClassNamesByPackage = appClassNamesByPackage;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, appClassNamesByPackage);

        this.deniedPermissions = deniedPermissions;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, deniedPermissions);
@@ -114,6 +145,14 @@ public class ParsedProcessImpl implements ParsedProcess { 
        return name;

    }



    /**

     * @see ParsedProcess#getAppClassNamesByPackage()

     */

    @DataClass.Generated.Member

    public @NonNull ArrayMap<String,String> getAppClassNamesByPackage() {

        return appClassNamesByPackage;

    }



    @DataClass.Generated.Member

    public @NonNull Set<String> getDeniedPermissions() {

        return deniedPermissions;
@@ -142,6 +181,17 @@ public class ParsedProcessImpl implements ParsedProcess { 
        return this;

    }



    /**

     * @see ParsedProcess#getAppClassNamesByPackage()

     */

    @DataClass.Generated.Member

    public @NonNull ParsedProcessImpl setAppClassNamesByPackage(@NonNull ArrayMap<String,String> value) {

        appClassNamesByPackage = value;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, appClassNamesByPackage);

        return this;

    }



    @DataClass.Generated.Member

    public @NonNull ParsedProcessImpl setDeniedPermissions(@NonNull Set<String> value) {

        deniedPermissions = value;
@@ -192,6 +242,7 @@ public class ParsedProcessImpl implements ParsedProcess { 
        // void parcelFieldName(Parcel dest, int flags) { ... }



        dest.writeString(name);

        dest.writeMap(appClassNamesByPackage);

        sParcellingForDeniedPermissions.parcel(deniedPermissions, dest, flags);

        dest.writeInt(gwpAsanMode);

        dest.writeInt(memtagMode);
@@ -210,6 +261,8 @@ public class ParsedProcessImpl implements ParsedProcess { 
        // static FieldType unparcelFieldName(Parcel in) { ... }



        String _name = in.readString();

        ArrayMap<String,String> _appClassNamesByPackage = new ArrayMap();

        in.readMap(_appClassNamesByPackage, String.class.getClassLoader());

        Set<String> _deniedPermissions = sParcellingForDeniedPermissions.unparcel(in);

        int _gwpAsanMode = in.readInt();

        int _memtagMode = in.readInt();
@@ -218,6 +271,9 @@ public class ParsedProcessImpl implements ParsedProcess { 
        this.name = _name;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, name);

        this.appClassNamesByPackage = _appClassNamesByPackage;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, appClassNamesByPackage);

        this.deniedPermissions = _deniedPermissions;

        com.android.internal.util.AnnotationValidations.validate(

                NonNull.class, null, deniedPermissions);
@@ -249,10 +305,10 @@ public class ParsedProcessImpl implements ParsedProcess { 
    };



    @DataClass.Generated(

            time = 1627605368434L,

            time = 1639076603310L,

            codegenVersion = "1.0.23",

            sourceFile = "frameworks/base/core/java/android/content/pm/parsing/component/ParsedProcessImpl.java",

            inputSignatures = "private @android.annotation.NonNull java.lang.String name\nprivate @android.annotation.NonNull @com.android.internal.util.DataClass.ParcelWith(com.android.internal.util.Parcelling.BuiltIn.ForInternedStringSet.class) java.util.Set<java.lang.String> deniedPermissions\nprivate @android.content.pm.ApplicationInfo.GwpAsanMode int gwpAsanMode\nprivate @android.content.pm.ApplicationInfo.MemtagMode int memtagMode\nprivate @android.content.pm.ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized\npublic  void addStateFrom(android.content.pm.parsing.component.ParsedProcess)\nclass ParsedProcessImpl extends java.lang.Object implements [android.content.pm.parsing.component.ParsedProcess]\n@com.android.internal.util.DataClass(genGetters=true, genSetters=true, genParcelable=true, genAidl=false, genBuilder=false)")

            inputSignatures = "private @android.annotation.NonNull java.lang.String name\nprivate @android.annotation.NonNull android.util.ArrayMap<java.lang.String,java.lang.String> appClassNamesByPackage\nprivate @android.annotation.NonNull @com.android.internal.util.DataClass.ParcelWith(com.android.internal.util.Parcelling.BuiltIn.ForInternedStringSet.class) java.util.Set<java.lang.String> deniedPermissions\nprivate @android.content.pm.ApplicationInfo.GwpAsanMode int gwpAsanMode\nprivate @android.content.pm.ApplicationInfo.MemtagMode int memtagMode\nprivate @android.content.pm.ApplicationInfo.NativeHeapZeroInitialized int nativeHeapZeroInitialized\npublic  void addStateFrom(android.content.pm.parsing.component.ParsedProcess)\npublic  void putAppClassNameForPackage(java.lang.String,java.lang.String)\nclass ParsedProcessImpl extends java.lang.Object implements [android.content.pm.parsing.component.ParsedProcess]\n@com.android.internal.util.DataClass(genGetters=true, genSetters=true, genParcelable=true, genAidl=false, genBuilder=false)")

    @Deprecated

    private void __metadata() {}