Add AppIntsallMetadata class.

/*

 * Copyright (C) 2019 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.server.integrity.engine;

/**

 * The app install metadata.

 *

 * <p>The integrity component retrieves metadata for app installs from package manager, passing it

 * to the rule evaluation engine to evaluate the metadata against the rules.

 */

public final class AppInstallMetadata {

    final String mPackageName;

    // Raw string encoding for the SHA-256 hash of the certificate of the app.

    final String mAppCertificate;

    final String mInstallerName;

    // Raw string encoding for the SHA-256 hash of the certificate of the installer.

    final String mInstallerCertificate;

    final int mVersionCode;

    final boolean mIsPreInstalled;

    AppInstallMetadata(String packageName, String appCertificate, String installerName,

            String installerCertificate, int versionCode, boolean isPreInstalled) {

        this.mPackageName = packageName;

        this.mAppCertificate = appCertificate;

        this.mInstallerName = installerName;

        this.mInstallerCertificate = installerCertificate;

        this.mVersionCode = versionCode;

        this.mIsPreInstalled = isPreInstalled;

    }

}

/*

 * Copyright (C) 2019 The Android Open Source Project

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *      http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package com.android.server.integrity.engine;

/**

 * The engine used to evaluate rules against app installs.

 *

 * <p>Every app install is evaluated against rules (pushed by the verifier) by the evaluation engine

 * to allow/block that install.

 */

public final class RuleEvaluation {

    private static final String TAG = "RuleEvaluation";

    // TODO: Add singleton injection.

}