Implement issue #2367442: Please add API for manipulating installer (880119bf) · Commits · e / os / android_frameworks_base

api/current.xml

+31 −1

Original line number	Diff line number	Diff line
		@@ -58662,6 +58662,21 @@
		<parameter name="flags" type="int">
		</parameter>
		</method>
		<method name="setInstallerPackageName"
		return="void"
		abstract="true"
		native="false"
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="targetPackage" type="java.lang.String">
		</parameter>
		<parameter name="installerPackageName" type="java.lang.String">
		</parameter>
		</method>
		<field name="COMPONENT_ENABLED_STATE_DEFAULT"
		type="int"
		transient="false"
		@@ -175729,6 +175744,21 @@
		<parameter name="flags" type="int">
		</parameter>
		</method>
		<method name="setInstallerPackageName"
		return="void"
		abstract="false"
		native="false"
		synchronized="false"
		static="false"
		final="false"
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="targetPackage" type="java.lang.String">
		</parameter>
		<parameter name="installerPackageName" type="java.lang.String">
		</parameter>
		</method>
		<method name="setPackageObbPath"
		return="void"
		abstract="false"
		@@ -248151,7 +248181,7 @@
		deprecated="not deprecated"
		visibility="public"
		>
		<parameter name="arg0" type="T">
		<parameter name="t" type="T">
		</parameter>
		</method>
		</interface>

core/java/android/app/ApplicationPackageManager.java

+10 −0

Original line number	Diff line number	Diff line
		@@ -913,6 +913,16 @@ final class ApplicationPackageManager extends PackageManager {
		}
		}

		@Override
		public void setInstallerPackageName(String targetPackage,
		String installerPackageName) {
		try {
		mPM.setInstallerPackageName(targetPackage, installerPackageName);
		} catch (RemoteException e) {
		// Should never happen!
		}
		}

		@Override
		public void movePackage(String packageName, IPackageMoveObserver observer, int flags) {
		try {

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

+2 −0

Original line number	Diff line number	Diff line
		@@ -158,6 +158,8 @@ interface IPackageManager {

		void finishPackageInstall(int token);

		void setInstallerPackageName(in String targetPackage, in String installerPackageName);

		/**
		* Delete a package.
		*

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

+18 −0

Original line number	Diff line number	Diff line
		@@ -1917,6 +1917,24 @@ public abstract class PackageManager {
		Uri packageURI, IPackageInstallObserver observer, int flags,
		String installerPackageName);

		/**
		* Change the installer associated with a given package. There are limitations
		* on how the installer package can be changed; in particular:
		* <ul>
		* <li> A SecurityException will be thrown if <var>installerPackageName</var>
		* is not signed with the same certificate as the calling application.
		* <li> A SecurityException will be thrown if <var>targetPackage</var> already
		* has an installer package, and that installer package is not signed with
		* the same certificate as the calling application.
		* </ul>
		*
		* @param targetPackage The installed package whose installer will be changed.
		* @param installerPackageName The package name of the new installer. May be
		* null to clear the association.
		*/
		public abstract void setInstallerPackageName(String targetPackage,
		String installerPackageName);

		/**
		* Attempts to delete a package. Since this may take a little while, the result will
		* be posted back to the given observer. A deletion will fail if the calling context

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

+74 −0

Original line number	Diff line number	Diff line
		@@ -4578,6 +4578,80 @@ class PackageManagerService extends IPackageManager.Stub {
		mHandler.sendMessage(msg);
		}

		public void setInstallerPackageName(String targetPackage,
		String installerPackageName) {
		PackageSetting pkgSetting;
		final int uid = Binder.getCallingUid();
		final int permission = mContext.checkCallingPermission(
		android.Manifest.permission.INSTALL_PACKAGES);
		final boolean allowedByPermission = (permission == PackageManager.PERMISSION_GRANTED);
		synchronized (mPackages) {
		PackageSetting targetPackageSetting = mSettings.mPackages.get(targetPackage);
		if (targetPackageSetting == null) {
		throw new IllegalArgumentException("Unknown target package: " + targetPackage);
		}

		PackageSetting installerPackageSetting;
		if (installerPackageName != null) {
		installerPackageSetting = mSettings.mPackages.get(installerPackageName);
		if (installerPackageSetting == null) {
		throw new IllegalArgumentException("Unknown installer package: "
		+ installerPackageName);
		}
		} else {
		installerPackageSetting = null;
		}

		Signature[] callerSignature;
		Object obj = mSettings.getUserIdLP(uid);
		if (obj != null) {
		if (obj instanceof SharedUserSetting) {
		callerSignature = ((SharedUserSetting)obj).signatures.mSignatures;
		} else if (obj instanceof PackageSetting) {
		callerSignature = ((PackageSetting)obj).signatures.mSignatures;
		} else {
		throw new SecurityException("Bad object " + obj + " for uid " + uid);
		}
		} else {
		throw new SecurityException("Unknown calling uid " + uid);
		}

		// Verify: can't set installerPackageName to a package that is
		// not signed with the same cert as the caller.
		if (installerPackageSetting != null) {
		if (checkSignaturesLP(callerSignature,
		installerPackageSetting.signatures.mSignatures)
		!= PackageManager.SIGNATURE_MATCH) {
		throw new SecurityException(
		"Caller does not have same cert as new installer package "
		+ installerPackageName);
		}
		}

		// Verify: if target already has an installer package, it must
		// be signed with the same cert as the caller.
		if (targetPackageSetting.installerPackageName != null) {
		PackageSetting setting = mSettings.mPackages.get(
		targetPackageSetting.installerPackageName);
		// If the currently set package isn't valid, then it's always
		// okay to change it.
		if (setting != null) {
		if (checkSignaturesLP(callerSignature,
		setting.signatures.mSignatures)
		!= PackageManager.SIGNATURE_MATCH) {
		throw new SecurityException(
		"Caller does not have same cert as old installer package "
		+ targetPackageSetting.installerPackageName);
		}
		}
		}

		// Okay!
		targetPackageSetting.installerPackageName = installerPackageName;
		scheduleWriteSettingsLocked();
		}
		}

		public void setPackageObbPath(String packageName, String path) {
		if (DEBUG_OBB)
		Log.v(TAG, "Setting .obb path for " + packageName + " to: " + path);