core/java/android/content/pm/PackageParser.java

/*
 * Copyright (C) 2007 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 android.content.pm;

import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;

import android.content.ComponentName;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.AssetManager;
import android.content.res.Configuration;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
import android.os.Bundle;
import android.os.PatternMatcher;
import android.util.AttributeSet;
import android.util.Config;
import android.util.DisplayMetrics;
import android.util.Log;
import android.util.TypedValue;
import com.android.internal.util.XmlUtils;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.ref.WeakReference;
import java.security.cert.Certificate;
import java.security.cert.CertificateEncodingException;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.Iterator;
import java.util.List;
import java.util.jar.JarEntry;
import java.util.jar.JarFile;

/**
 * Package archive parsing
 *
 * {@hide}
 */
public class PackageParser {

    private String mArchiveSourcePath;
    private String[] mSeparateProcesses;
    private int mSdkVersion;

    private int mParseError = PackageManager.INSTALL_SUCCEEDED;

    private static final Object mSync = new Object();
    private static WeakReference<byte[]> mReadBuffer;

    /** If set to true, we will only allow package files that exactly match
     *  the DTD.  Otherwise, we try to get as much from the package as we
     *  can without failing.  This should normally be set to false, to
     *  support extensions to the DTD in future versions. */
    private static final boolean RIGID_PARSER = false;

    private static final String TAG = "PackageParser";

    public PackageParser(String archiveSourcePath) {
        mArchiveSourcePath = archiveSourcePath;
    }

    public void setSeparateProcesses(String[] procs) {
        mSeparateProcesses = procs;
    }

    public void setSdkVersion(int sdkVersion) {
        mSdkVersion = sdkVersion;
    }

    private static final boolean isPackageFilename(String name) {
        return name.endsWith(".apk");
    }

    /**
     * Generate and return the {@link PackageInfo} for a parsed package.
     *
     * @param p the parsed package.
     * @param flags indicating which optional information is included.
     */
    public static PackageInfo generatePackageInfo(PackageParser.Package p,
            int gids[], int flags) {

        PackageInfo pi = new PackageInfo();
        pi.packageName = p.packageName;
        pi.versionCode = p.mVersionCode;
        pi.versionName = p.mVersionName;
        pi.sharedUserId = p.mSharedUserId;
        pi.sharedUserLabel = p.mSharedUserLabel;
        pi.applicationInfo = p.applicationInfo;
        if ((flags&PackageManager.GET_GIDS) != 0) {
            pi.gids = gids;
        }
        if ((flags&PackageManager.GET_CONFIGURATIONS) != 0) {
            int N = p.configPreferences.size();
            if (N > 0) {
                pi.configPreferences = new ConfigurationInfo[N];
                for (int i=0; i<N; i++) {
                    pi.configPreferences[i] = p.configPreferences.get(i);
                }
            }
        }
        if ((flags&PackageManager.GET_ACTIVITIES) != 0) {
            int N = p.activities.size();
            if (N > 0) {
                pi.activities = new ActivityInfo[N];
                for (int i=0; i<N; i++) {
                    final Activity activity = p.activities.get(i);
                    if (activity.info.enabled
                        || (flags&PackageManager.GET_DISABLED_COMPONENTS) != 0) {
                        pi.activities[i] = generateActivityInfo(p.activities.get(i), flags);
                    }
                }
            }
        }
        if ((flags&PackageManager.GET_RECEIVERS) != 0) {
            int N = p.receivers.size();
            if (N > 0) {
                pi.receivers = new ActivityInfo[N];
                for (int i=0; i<N; i++) {
                    final Activity activity = p.receivers.get(i);
                    if (activity.info.enabled
                        || (flags&PackageManager.GET_DISABLED_COMPONENTS) != 0) {
                        pi.receivers[i] = generateActivityInfo(p.receivers.get(i), flags);
                    }
                }
            }
        }
        if ((flags&PackageManager.GET_SERVICES) != 0) {
            int N = p.services.size();
            if (N > 0) {
                pi.services = new ServiceInfo[N];
                for (int i=0; i<N; i++) {
                    final Service service = p.services.get(i);
                    if (service.info.enabled
                        || (flags&PackageManager.GET_DISABLED_COMPONENTS) != 0) {
                        pi.services[i] = generateServiceInfo(p.services.get(i), flags);
                    }
                }
            }
        }
        if ((flags&PackageManager.GET_PROVIDERS) != 0) {
            int N = p.providers.size();
            if (N > 0) {
                pi.providers = new ProviderInfo[N];
                for (int i=0; i<N; i++) {
                    final Provider provider = p.providers.get(i);
                    if (provider.info.enabled
                        || (flags&PackageManager.GET_DISABLED_COMPONENTS) != 0) {
                        pi.providers[i] = generateProviderInfo(p.providers.get(i), flags);
                    }
                }
            }
        }
        if ((flags&PackageManager.GET_INSTRUMENTATION) != 0) {
            int N = p.instrumentation.size();
            if (N > 0) {
                pi.instrumentation = new InstrumentationInfo[N];
                for (int i=0; i<N; i++) {
                    pi.instrumentation[i] = generateInstrumentationInfo(
                            p.instrumentation.get(i), flags);
                }
            }
        }
        if ((flags&PackageManager.GET_PERMISSIONS) != 0) {
            int N = p.permissions.size();
            if (N > 0) {
                pi.permissions = new PermissionInfo[N];
                for (int i=0; i<N; i++) {
                    pi.permissions[i] = generatePermissionInfo(p.permissions.get(i), flags);
                }
            }
            N = p.requestedPermissions.size();
            if (N > 0) {
                pi.requestedPermissions = new String[N];
                for (int i=0; i<N; i++) {
                    pi.requestedPermissions[i] = p.requestedPermissions.get(i);
                }
            }
        }
        if ((flags&PackageManager.GET_SIGNATURES) != 0) {
            int N = p.mSignatures.length;
            if (N > 0) {
                pi.signatures = new Signature[N];
                System.arraycopy(p.mSignatures, 0, pi.signatures, 0, N);
            }
        }
        return pi;
    }

    private Certificate[] loadCertificates(JarFile jarFile, JarEntry je,
            byte[] readBuffer) {
        try {
            // We must read the stream for the JarEntry to retrieve
            // its certificates.
            InputStream is = jarFile.getInputStream(je);
            while (is.read(readBuffer, 0, readBuffer.length) != -1) {
                // not using
            }
            is.close();
            return je != null ? je.getCertificates() : null;
        } catch (IOException e) {
            Log.w(TAG, "Exception reading " + je.getName() + " in "
                    + jarFile.getName(), e);
        }
        return null;
    }

    public final static int PARSE_IS_SYSTEM = 0x0001;
    public final static int PARSE_CHATTY = 0x0002;
    public final static int PARSE_MUST_BE_APK = 0x0004;
    public final static int PARSE_IGNORE_PROCESSES = 0x0008;

    public int getParseError() {
        return mParseError;
    }

    public Package parsePackage(File sourceFile, String destFileName,
            DisplayMetrics metrics, int flags) {
        mParseError = PackageManager.INSTALL_SUCCEEDED;

        mArchiveSourcePath = sourceFile.getPath();
        if (!sourceFile.isFile()) {
            Log.w(TAG, "Skipping dir: " + mArchiveSourcePath);
            mParseError = PackageManager.INSTALL_PARSE_FAILED_NOT_APK;
            return null;
        }
        if (!isPackageFilename(sourceFile.getName())
                && (flags&PARSE_MUST_BE_APK) != 0) {
            if ((flags&PARSE_IS_SYSTEM) == 0) {
                // We expect to have non-.apk files in the system dir,
                // so don't warn about them.
                Log.w(TAG, "Skipping non-package file: " + mArchiveSourcePath);
            }
            mParseError = PackageManager.INSTALL_PARSE_FAILED_NOT_APK;
            return null;
        }

        if ((flags&PARSE_CHATTY) != 0 && Config.LOGD) Log.d(
            TAG, "Scanning package: " + mArchiveSourcePath);

        XmlResourceParser parser = null;
        AssetManager assmgr = null;
        boolean assetError = true;
        try {
            assmgr = new AssetManager();
            int cookie = assmgr.addAssetPath(mArchiveSourcePath);
            if(cookie != 0) {
                parser = assmgr.openXmlResourceParser(cookie, "AndroidManifest.xml");
                assetError = false;
            } else {
                Log.w(TAG, "Failed adding asset path:"+mArchiveSourcePath);
            }
        } catch (Exception e) {
            Log.w(TAG, "Unable to read AndroidManifest.xml of "
                    + mArchiveSourcePath, e);
        }
        if(assetError) {
            if (assmgr != null) assmgr.close();
            mParseError = PackageManager.INSTALL_PARSE_FAILED_BAD_MANIFEST;
            return null;
        }
        String[] errorText = new String[1];
        Package pkg = null;
        Exception errorException = null;
        try {
            // XXXX todo: need to figure out correct configuration.
            Resources res = new Resources(assmgr, metrics, null);
            pkg = parsePackage(res, parser, flags, errorText);
        } catch (Exception e) {
            errorException = e;
            mParseError = PackageManager.INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION;
        }


        if (pkg == null) {
            if (errorException != null) {
                Log.w(TAG, mArchiveSourcePath, errorException);
            } else {
                Log.w(TAG, mArchiveSourcePath + " (at "
                        + parser.getPositionDescription()
                        + "): " + errorText[0]);
            }
            parser.close();
            assmgr.close();
            if (mParseError == PackageManager.INSTALL_SUCCEEDED) {
                mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            }
            return null;
        }

        parser.close();
        assmgr.close();

        pkg.applicationInfo.sourceDir = destFileName;
        pkg.applicationInfo.publicSourceDir = destFileName;
        pkg.mSignatures = null;

        return pkg;
    }

    public boolean collectCertificates(Package pkg, int flags) {
        pkg.mSignatures = null;

        WeakReference<byte[]> readBufferRef;
        byte[] readBuffer = null;
        synchronized (mSync) {
            readBufferRef = mReadBuffer;
            if (readBufferRef != null) {
                mReadBuffer = null;
                readBuffer = readBufferRef.get();
            }
            if (readBuffer == null) {
                readBuffer = new byte[8192];
                readBufferRef = new WeakReference<byte[]>(readBuffer);
            }
        }

        try {
            JarFile jarFile = new JarFile(mArchiveSourcePath);

            Certificate[] certs = null;

            if ((flags&PARSE_IS_SYSTEM) != 0) {
                // If this package comes from the system image, then we
                // can trust it...  we'll just use the AndroidManifest.xml
                // to retrieve its signatures, not validating all of the
                // files.
                JarEntry jarEntry = jarFile.getJarEntry("AndroidManifest.xml");
                certs = loadCertificates(jarFile, jarEntry, readBuffer);
                if (certs == null) {
                    Log.e(TAG, "Package " + pkg.packageName
                            + " has no certificates at entry "
                            + jarEntry.getName() + "; ignoring!");
                    jarFile.close();
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_NO_CERTIFICATES;
                    return false;
                }
                if (false) {
                    Log.i(TAG, "File " + mArchiveSourcePath + ": entry=" + jarEntry
                            + " certs=" + (certs != null ? certs.length : 0));
                    if (certs != null) {
                        final int N = certs.length;
                        for (int i=0; i<N; i++) {
                            Log.i(TAG, "  Public key: "
                                    + certs[i].getPublicKey().getEncoded()
                                    + " " + certs[i].getPublicKey());
                        }
                    }
                }

            } else {
                Enumeration entries = jarFile.entries();
                while (entries.hasMoreElements()) {
                    JarEntry je = (JarEntry)entries.nextElement();
                    if (je.isDirectory()) continue;
                    if (je.getName().startsWith("META-INF/")) continue;
                    Certificate[] localCerts = loadCertificates(jarFile, je,
                            readBuffer);
                    if (false) {
                        Log.i(TAG, "File " + mArchiveSourcePath + " entry " + je.getName()
                                + ": certs=" + certs + " ("
                                + (certs != null ? certs.length : 0) + ")");
                    }
                    if (localCerts == null) {
                        Log.e(TAG, "Package " + pkg.packageName
                                + " has no certificates at entry "
                                + je.getName() + "; ignoring!");
                        jarFile.close();
                        mParseError = PackageManager.INSTALL_PARSE_FAILED_NO_CERTIFICATES;
                        return false;
                    } else if (certs == null) {
                        certs = localCerts;
                    } else {
                        // Ensure all certificates match.
                        for (int i=0; i<certs.length; i++) {
                            boolean found = false;
                            for (int j=0; j<localCerts.length; j++) {
                                if (certs[i] != null &&
                                        certs[i].equals(localCerts[j])) {
                                    found = true;
                                    break;
                                }
                            }
                            if (!found || certs.length != localCerts.length) {
                                Log.e(TAG, "Package " + pkg.packageName
                                        + " has mismatched certificates at entry "
                                        + je.getName() + "; ignoring!");
                                jarFile.close();
                                mParseError = PackageManager.INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES;
                                return false;
                            }
                        }
                    }
                }
            }
            jarFile.close();

            synchronized (mSync) {
                mReadBuffer = readBufferRef;
            }

            if (certs != null && certs.length > 0) {
                final int N = certs.length;
                pkg.mSignatures = new Signature[certs.length];
                for (int i=0; i<N; i++) {
                    pkg.mSignatures[i] = new Signature(
                            certs[i].getEncoded());
                }
            } else {
                Log.e(TAG, "Package " + pkg.packageName
                        + " has no certificates; ignoring!");
                mParseError = PackageManager.INSTALL_PARSE_FAILED_NO_CERTIFICATES;
                return false;
            }
        } catch (CertificateEncodingException e) {
            Log.w(TAG, "Exception reading " + mArchiveSourcePath, e);
            mParseError = PackageManager.INSTALL_PARSE_FAILED_CERTIFICATE_ENCODING;
            return false;
        } catch (IOException e) {
            Log.w(TAG, "Exception reading " + mArchiveSourcePath, e);
            mParseError = PackageManager.INSTALL_PARSE_FAILED_CERTIFICATE_ENCODING;
            return false;
        } catch (RuntimeException e) {
            Log.w(TAG, "Exception reading " + mArchiveSourcePath, e);
            mParseError = PackageManager.INSTALL_PARSE_FAILED_UNEXPECTED_EXCEPTION;
            return false;
        }

        return true;
    }

    public static String parsePackageName(String packageFilePath, int flags) {
        XmlResourceParser parser = null;
        AssetManager assmgr = null;
        try {
            assmgr = new AssetManager();
            int cookie = assmgr.addAssetPath(packageFilePath);
            parser = assmgr.openXmlResourceParser(cookie, "AndroidManifest.xml");
        } catch (Exception e) {
            if (assmgr != null) assmgr.close();
            Log.w(TAG, "Unable to read AndroidManifest.xml of "
                    + packageFilePath, e);
            return null;
        }
        AttributeSet attrs = parser;
        String errors[] = new String[1];
        String packageName = null;
        try {
            packageName = parsePackageName(parser, attrs, flags, errors);
        } catch (IOException e) {
            Log.w(TAG, packageFilePath, e);
        } catch (XmlPullParserException e) {
            Log.w(TAG, packageFilePath, e);
        } finally {
            if (parser != null) parser.close();
            if (assmgr != null) assmgr.close();
        }
        if (packageName == null) {
            Log.e(TAG, "parsePackageName error: " + errors[0]);
            return null;
        }
        return packageName;
    }

    private static String validateName(String name, boolean requiresSeparator) {
        final int N = name.length();
        boolean hasSep = false;
        boolean front = true;
        for (int i=0; i<N; i++) {
            final char c = name.charAt(i);
            if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
                front = false;
                continue;
            }
            if (!front) {
                if ((c >= '0' && c <= '9') || c == '_') {
                    continue;
                }
            }
            if (c == '.') {
                hasSep = true;
                front = true;
                continue;
            }
            return "bad character '" + c + "'";
        }
        return hasSep || !requiresSeparator
                ? null : "must have at least one '.' separator";
    }

    private static String parsePackageName(XmlPullParser parser,
            AttributeSet attrs, int flags, String[] outError)
            throws IOException, XmlPullParserException {

        int type;
        while ((type=parser.next()) != parser.START_TAG
                   && type != parser.END_DOCUMENT) {
            ;
        }

        if (type != parser.START_TAG) {
            outError[0] = "No start tag found";
            return null;
        }
        if ((flags&PARSE_CHATTY) != 0 && Config.LOGV) Log.v(
            TAG, "Root element name: '" + parser.getName() + "'");
        if (!parser.getName().equals("manifest")) {
            outError[0] = "No <manifest> tag";
            return null;
        }
        String pkgName = attrs.getAttributeValue(null, "package");
        if (pkgName == null || pkgName.length() == 0) {
            outError[0] = "<manifest> does not specify package";
            return null;
        }
        String nameError = validateName(pkgName, true);
        if (nameError != null && !"android".equals(pkgName)) {
            outError[0] = "<manifest> specifies bad package name \""
                + pkgName + "\": " + nameError;
            return null;
        }

        return pkgName.intern();
    }

    /**
     * Temporary.
     */
    static public Signature stringToSignature(String str) {
        final int N = str.length();
        byte[] sig = new byte[N];
        for (int i=0; i<N; i++) {
            sig[i] = (byte)str.charAt(i);
        }
        return new Signature(sig);
    }

    private Package parsePackage(
        Resources res, XmlResourceParser parser, int flags, String[] outError)
        throws XmlPullParserException, IOException {
        AttributeSet attrs = parser;

        String pkgName = parsePackageName(parser, attrs, flags, outError);
        if (pkgName == null) {
            mParseError = PackageManager.INSTALL_PARSE_FAILED_BAD_PACKAGE_NAME;
            return null;
        }
        int type;

        final Package pkg = new Package(pkgName);
        pkg.mSystem = (flags&PARSE_IS_SYSTEM) != 0;
        boolean foundApp = false;

        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifest);
        pkg.mVersionCode = sa.getInteger(
                com.android.internal.R.styleable.AndroidManifest_versionCode, 0);
        pkg.mVersionName = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifest_versionName);
        if (pkg.mVersionName != null) {
            pkg.mVersionName = pkg.mVersionName.intern();
        }
        String str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifest_sharedUserId);
        if (str != null) {
            String nameError = validateName(str, true);
            if (nameError != null && !"android".equals(pkgName)) {
                outError[0] = "<manifest> specifies bad sharedUserId name \""
                    + str + "\": " + nameError;
                mParseError = PackageManager.INSTALL_PARSE_FAILED_BAD_SHARED_USER_ID;
                return null;
            }
            pkg.mSharedUserId = str.intern();
            pkg.mSharedUserLabel = sa.getResourceId(
                    com.android.internal.R.styleable.AndroidManifest_sharedUserLabel, 0);
        }
        sa.recycle();

        final int innerDepth = parser.getDepth();

        int outerDepth = parser.getDepth();
        while ((type=parser.next()) != parser.END_DOCUMENT
               && (type != parser.END_TAG || parser.getDepth() > outerDepth)) {
            if (type == parser.END_TAG || type == parser.TEXT) {
                continue;
            }

            String tagName = parser.getName();
            if (tagName.equals("application")) {
                if (foundApp) {
                    if (RIGID_PARSER) {
                        outError[0] = "<manifest> has more than one <application>";
                        mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                        return null;
                    } else {
                        Log.w(TAG, "<manifest> has more than one <application>");
                        XmlUtils.skipCurrentTag(parser);
                        continue;
                    }
                }

                foundApp = true;
                if (!parseApplication(pkg, res, parser, attrs, flags, outError)) {
                    return null;
                }
            } else if (tagName.equals("permission-group")) {
                if (parsePermissionGroup(pkg, res, parser, attrs, outError) == null) {
                    return null;
                }
            } else if (tagName.equals("permission")) {
                if (parsePermission(pkg, res, parser, attrs, outError) == null) {
                    return null;
                }
            } else if (tagName.equals("permission-tree")) {
                if (parsePermissionTree(pkg, res, parser, attrs, outError) == null) {
                    return null;
                }
            } else if (tagName.equals("uses-permission")) {
                sa = res.obtainAttributes(attrs,
                        com.android.internal.R.styleable.AndroidManifestUsesPermission);

                String name = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestUsesPermission_name);

                sa.recycle();

                if (name != null && !pkg.requestedPermissions.contains(name)) {
                    pkg.requestedPermissions.add(name);
                }

                XmlUtils.skipCurrentTag(parser);

            } else if (tagName.equals("uses-configuration")) {
                ConfigurationInfo cPref = new ConfigurationInfo();
                sa = res.obtainAttributes(attrs,
                        com.android.internal.R.styleable.AndroidManifestUsesConfiguration);
                cPref.reqTouchScreen = sa.getInt(
                        com.android.internal.R.styleable.AndroidManifestUsesConfiguration_reqTouchScreen,
                        Configuration.TOUCHSCREEN_UNDEFINED);
                cPref.reqKeyboardType = sa.getInt(
                        com.android.internal.R.styleable.AndroidManifestUsesConfiguration_reqKeyboardType,
                        Configuration.KEYBOARD_UNDEFINED);
                if (sa.getBoolean(
                        com.android.internal.R.styleable.AndroidManifestUsesConfiguration_reqHardKeyboard,
                        false)) {
                    cPref.reqInputFeatures |= ConfigurationInfo.INPUT_FEATURE_HARD_KEYBOARD;
                }
                cPref.reqNavigation = sa.getInt(
                        com.android.internal.R.styleable.AndroidManifestUsesConfiguration_reqNavigation,
                        Configuration.NAVIGATION_UNDEFINED);
                if (sa.getBoolean(
                        com.android.internal.R.styleable.AndroidManifestUsesConfiguration_reqFiveWayNav,
                        false)) {
                    cPref.reqInputFeatures |= ConfigurationInfo.INPUT_FEATURE_FIVE_WAY_NAV;
                }
                sa.recycle();
                pkg.configPreferences.add(cPref);

                XmlUtils.skipCurrentTag(parser);

            }  else if (tagName.equals("uses-sdk")) {
                if (mSdkVersion > 0) {
                    sa = res.obtainAttributes(attrs,
                            com.android.internal.R.styleable.AndroidManifestUsesSdk);

                    int vers = sa.getInt(
                            com.android.internal.R.styleable.AndroidManifestUsesSdk_minSdkVersion, 0);

                    sa.recycle();

                    if (vers > mSdkVersion) {
                        outError[0] = "Requires newer sdk version #" + vers
                            + " (current version is #" + mSdkVersion + ")";
                        mParseError = PackageManager.INSTALL_FAILED_OLDER_SDK;
                        return null;
                    }
                }

                XmlUtils.skipCurrentTag(parser);

            } else if (tagName.equals("instrumentation")) {
                if (parseInstrumentation(pkg, res, parser, attrs, outError) == null) {
                    return null;
                }
            } else if (tagName.equals("eat-comment")) {
                // Just skip this tag
                XmlUtils.skipCurrentTag(parser);
                continue;
            } else if (RIGID_PARSER) {
                outError[0] = "Bad element under <manifest>: "
                    + parser.getName();
                mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                return null;
            } else {
                Log.w(TAG, "Bad element under <manifest>: "
                      + parser.getName());
                XmlUtils.skipCurrentTag(parser);
                continue;
            }
        }

        if (!foundApp && pkg.instrumentation.size() == 0) {
            outError[0] = "<manifest> does not contain an <application> or <instrumentation>";
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_EMPTY;
        }

        if (pkg.usesLibraries.size() > 0) {
            pkg.usesLibraryFiles = new String[pkg.usesLibraries.size()];
            pkg.usesLibraries.toArray(pkg.usesLibraryFiles);
        }

        int size = pkg.supportsDensityList.size();
        if (size > 0) {
            int densities[] = pkg.supportsDensities = new int[size];
            List<Integer> densityList = pkg.supportsDensityList;
            for (int i = 0; i < size; i++) {
                densities[i] = densityList.get(i);
            }
        }
        return pkg;
    }

    private static String buildClassName(String pkg, CharSequence clsSeq,
            String[] outError) {
        if (clsSeq == null || clsSeq.length() <= 0) {
            outError[0] = "Empty class name in package " + pkg;
            return null;
        }
        String cls = clsSeq.toString();
        char c = cls.charAt(0);
        if (c == '.') {
            return (pkg + cls).intern();
        }
        if (cls.indexOf('.') < 0) {
            StringBuilder b = new StringBuilder(pkg);
            b.append('.');
            b.append(cls);
            return b.toString().intern();
        }
        if (c >= 'a' && c <= 'z') {
            return cls.intern();
        }
        outError[0] = "Bad class name " + cls + " in package " + pkg;
        return null;
    }

    private static String buildCompoundName(String pkg,
            CharSequence procSeq, String type, String[] outError) {
        String proc = procSeq.toString();
        char c = proc.charAt(0);
        if (pkg != null && c == ':') {
            if (proc.length() < 2) {
                outError[0] = "Bad " + type + " name " + proc + " in package " + pkg
                        + ": must be at least two characters";
                return null;
            }
            String subName = proc.substring(1);
            String nameError = validateName(subName, false);
            if (nameError != null) {
                outError[0] = "Invalid " + type + " name " + proc + " in package "
                        + pkg + ": " + nameError;
                return null;
            }
            return (pkg + proc).intern();
        }
        String nameError = validateName(proc, true);
        if (nameError != null && !"system".equals(proc)) {
            outError[0] = "Invalid " + type + " name " + proc + " in package "
                    + pkg + ": " + nameError;
            return null;
        }
        return proc.intern();
    }
    
    private static String buildProcessName(String pkg, String defProc,
            CharSequence procSeq, int flags, String[] separateProcesses,
            String[] outError) {
        if ((flags&PARSE_IGNORE_PROCESSES) != 0 && !"system".equals(procSeq)) {
            return defProc != null ? defProc : pkg;
        }
        if (separateProcesses != null) {
            for (int i=separateProcesses.length-1; i>=0; i--) {
                String sp = separateProcesses[i];
                if (sp.equals(pkg) || sp.equals(defProc) || sp.equals(procSeq)) {
                    return pkg;
                }
            }
        }
        if (procSeq == null || procSeq.length() <= 0) {
            return defProc;
        }
        return buildCompoundName(pkg, procSeq, "package", outError);
    }

    private static String buildTaskAffinityName(String pkg, String defProc,
            CharSequence procSeq, String[] outError) {
        if (procSeq == null) {
            return defProc;
        }
        if (procSeq.length() <= 0) {
            return null;
        }
        return buildCompoundName(pkg, procSeq, "taskAffinity", outError);
    }
    
    private PermissionGroup parsePermissionGroup(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, String[] outError)
        throws XmlPullParserException, IOException {
        PermissionGroup perm = new PermissionGroup(owner);

        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestPermissionGroup);

        if (!parsePackageItemInfo(owner, perm.info, outError,
                "<permission-group>", sa,
                com.android.internal.R.styleable.AndroidManifestPermissionGroup_name,
                com.android.internal.R.styleable.AndroidManifestPermissionGroup_label,
                com.android.internal.R.styleable.AndroidManifestPermissionGroup_icon)) {
            sa.recycle();
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        perm.info.descriptionRes = sa.getResourceId(
                com.android.internal.R.styleable.AndroidManifestPermissionGroup_description,
                0);

        sa.recycle();
        
        if (!parseAllMetaData(res, parser, attrs, "<permission-group>", perm,
                outError)) {
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        owner.permissionGroups.add(perm);

        return perm;
    }

    private Permission parsePermission(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, String[] outError)
        throws XmlPullParserException, IOException {
        Permission perm = new Permission(owner);

        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestPermission);

        if (!parsePackageItemInfo(owner, perm.info, outError,
                "<permission>", sa,
                com.android.internal.R.styleable.AndroidManifestPermission_name,
                com.android.internal.R.styleable.AndroidManifestPermission_label,
                com.android.internal.R.styleable.AndroidManifestPermission_icon)) {
            sa.recycle();
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        perm.info.group = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestPermission_permissionGroup);
        if (perm.info.group != null) {
            perm.info.group = perm.info.group.intern();
        }
        
        perm.info.descriptionRes = sa.getResourceId(
                com.android.internal.R.styleable.AndroidManifestPermission_description,
                0);

        perm.info.protectionLevel = sa.getInt(
                com.android.internal.R.styleable.AndroidManifestPermission_protectionLevel,
                PermissionInfo.PROTECTION_NORMAL);

        sa.recycle();
        
        if (perm.info.protectionLevel == -1) {
            outError[0] = "<permission> does not specify protectionLevel";
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }
        
        if (!parseAllMetaData(res, parser, attrs, "<permission>", perm,
                outError)) {
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        owner.permissions.add(perm);

        return perm;
    }

    private Permission parsePermissionTree(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, String[] outError)
        throws XmlPullParserException, IOException {
        Permission perm = new Permission(owner);

        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestPermissionTree);

        if (!parsePackageItemInfo(owner, perm.info, outError,
                "<permission-tree>", sa,
                com.android.internal.R.styleable.AndroidManifestPermissionTree_name,
                com.android.internal.R.styleable.AndroidManifestPermissionTree_label,
                com.android.internal.R.styleable.AndroidManifestPermissionTree_icon)) {
            sa.recycle();
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        sa.recycle();
        
        int index = perm.info.name.indexOf('.');
        if (index > 0) {
            index = perm.info.name.indexOf('.', index+1);
        }
        if (index < 0) {
            outError[0] = "<permission-tree> name has less than three segments: "
                + perm.info.name;
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        perm.info.descriptionRes = 0;
        perm.info.protectionLevel = PermissionInfo.PROTECTION_NORMAL;
        perm.tree = true;

        if (!parseAllMetaData(res, parser, attrs, "<permission-tree>", perm,
                outError)) {
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        owner.permissions.add(perm);

        return perm;
    }

    private Instrumentation parseInstrumentation(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, String[] outError)
        throws XmlPullParserException, IOException {
        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestInstrumentation);

        Instrumentation a = new Instrumentation(owner);

        if (!parsePackageItemInfo(owner, a.info, outError, "<instrumentation>", sa,
                com.android.internal.R.styleable.AndroidManifestInstrumentation_name,
                com.android.internal.R.styleable.AndroidManifestInstrumentation_label,
                com.android.internal.R.styleable.AndroidManifestInstrumentation_icon)) {
            sa.recycle();
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        a.component = new ComponentName(owner.applicationInfo.packageName,
                a.info.name);

        String str;
        str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestInstrumentation_targetPackage);
        a.info.targetPackage = str != null ? str.intern() : null;

        a.info.handleProfiling = sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestInstrumentation_handleProfiling,
                false);

        a.info.functionalTest = sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestInstrumentation_functionalTest,
                false);

        sa.recycle();

        if (a.info.targetPackage == null) {
            outError[0] = "<instrumentation> does not specify targetPackage";
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        if (!parseAllMetaData(res, parser, attrs, "<instrumentation>", a,
                outError)) {
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return null;
        }

        owner.instrumentation.add(a);

        return a;
    }

    private boolean parseApplication(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, int flags, String[] outError)
        throws XmlPullParserException, IOException {
        final ApplicationInfo ai = owner.applicationInfo;
        final String pkgName = owner.applicationInfo.packageName;

        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestApplication);

        String name = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestApplication_name);
        if (name != null) {
            ai.className = buildClassName(pkgName, name, outError);
            if (ai.className == null) {
                sa.recycle();
                mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                return false;
            }
        }

        String manageSpaceActivity = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestApplication_manageSpaceActivity);
        if (manageSpaceActivity != null) {
            ai.manageSpaceActivityName = buildClassName(pkgName, manageSpaceActivity,
                    outError);
        }

        TypedValue v = sa.peekValue(
                com.android.internal.R.styleable.AndroidManifestApplication_label);
        if (v != null && (ai.labelRes=v.resourceId) == 0) {
            ai.nonLocalizedLabel = v.coerceToString();
        }

        ai.icon = sa.getResourceId(
                com.android.internal.R.styleable.AndroidManifestApplication_icon, 0);
        ai.theme = sa.getResourceId(
                com.android.internal.R.styleable.AndroidManifestApplication_theme, 0);
        ai.descriptionRes = sa.getResourceId(
                com.android.internal.R.styleable.AndroidManifestApplication_description, 0);

        if ((flags&PARSE_IS_SYSTEM) != 0) {
            if (sa.getBoolean(
                    com.android.internal.R.styleable.AndroidManifestApplication_persistent,
                    false)) {
                ai.flags |= ApplicationInfo.FLAG_PERSISTENT;
            }
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestApplication_debuggable,
                false)) {
            ai.flags |= ApplicationInfo.FLAG_DEBUGGABLE;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestApplication_hasCode,
                true)) {
            ai.flags |= ApplicationInfo.FLAG_HAS_CODE;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestApplication_allowTaskReparenting,
                false)) {
            ai.flags |= ApplicationInfo.FLAG_ALLOW_TASK_REPARENTING;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestApplication_allowClearUserData,
                true)) {
            ai.flags |= ApplicationInfo.FLAG_ALLOW_CLEAR_USER_DATA;
        }

        String str;
        str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestApplication_permission);
        ai.permission = (str != null && str.length() > 0) ? str.intern() : null;

        str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestApplication_taskAffinity);
        ai.taskAffinity = buildTaskAffinityName(ai.packageName, ai.packageName,
                str, outError);

        if (outError[0] == null) {
            ai.processName = buildProcessName(ai.packageName, null, sa.getNonResourceString(
                    com.android.internal.R.styleable.AndroidManifestApplication_process),
                    flags, mSeparateProcesses, outError);
    
            ai.enabled = sa.getBoolean(com.android.internal.R.styleable.AndroidManifestApplication_enabled, true);
        }

        sa.recycle();

        if (outError[0] != null) {
            mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
            return false;
        }

        final int innerDepth = parser.getDepth();

        int type;
        while ((type=parser.next()) != parser.END_DOCUMENT
               && (type != parser.END_TAG || parser.getDepth() > innerDepth)) {
            if (type == parser.END_TAG || type == parser.TEXT) {
                continue;
            }

            String tagName = parser.getName();
            if (tagName.equals("activity")) {
                Activity a = parseActivity(owner, res, parser, attrs, flags, outError, false);
                if (a == null) {
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                    return false;
                }

                owner.activities.add(a);

            } else if (tagName.equals("receiver")) {
                Activity a = parseActivity(owner, res, parser, attrs, flags, outError, true);
                if (a == null) {
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                    return false;
                }

                owner.receivers.add(a);

            } else if (tagName.equals("service")) {
                Service s = parseService(owner, res, parser, attrs, flags, outError);
                if (s == null) {
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                    return false;
                }

                owner.services.add(s);

            } else if (tagName.equals("provider")) {
                Provider p = parseProvider(owner, res, parser, attrs, flags, outError);
                if (p == null) {
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                    return false;
                }

                owner.providers.add(p);

            } else if (tagName.equals("activity-alias")) {
                Activity a = parseActivityAlias(owner, res, parser, attrs, flags, outError, false);
                if (a == null) {
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                    return false;
                }

                owner.activities.add(a);

            } else if (parser.getName().equals("meta-data")) {
                // note: application meta-data is stored off to the side, so it can
                // remain null in the primary copy (we like to avoid extra copies because
                // it can be large)
                if ((owner.mAppMetaData = parseMetaData(res, parser, attrs, owner.mAppMetaData,
                        outError)) == null) {
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                    return false;
                }

            } else if (tagName.equals("uses-library")) {
                sa = res.obtainAttributes(attrs,
                        com.android.internal.R.styleable.AndroidManifestUsesLibrary);

                String lname = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestUsesLibrary_name);

                sa.recycle();

                if (lname != null && !owner.usesLibraries.contains(lname)) {
                    owner.usesLibraries.add(lname);
                }

                XmlUtils.skipCurrentTag(parser);

            } else if (tagName.equals("supports-density")) {
                sa = res.obtainAttributes(attrs,
                        com.android.internal.R.styleable.AndroidManifestSupportsDensity);

                int density = sa.getInteger(
                        com.android.internal.R.styleable.AndroidManifestSupportsDensity_density, -1);

                sa.recycle();

                if (density != -1 && !owner.supportsDensityList.contains(density)) {
                    owner.supportsDensityList.add(density);
                }

                XmlUtils.skipCurrentTag(parser);

            } else {
                if (!RIGID_PARSER) {
                    Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                    Log.w(TAG, "Unknown element under <application>: " + tagName);
                    XmlUtils.skipCurrentTag(parser);
                    continue;
                } else {
                    outError[0] = "Bad element under <application>: " + tagName;
                    mParseError = PackageManager.INSTALL_PARSE_FAILED_MANIFEST_MALFORMED;
                    return false;
                }
            }
        }

        return true;
    }

    private boolean parsePackageItemInfo(Package owner, PackageItemInfo outInfo,
            String[] outError, String tag, TypedArray sa,
            int nameRes, int labelRes, int iconRes) {
        String name = sa.getNonResourceString(nameRes);
        if (name == null) {
            outError[0] = tag + " does not specify android:name";
            return false;
        }

        outInfo.name
            = buildClassName(owner.applicationInfo.packageName, name, outError);
        if (outInfo.name == null) {
            return false;
        }

        int iconVal = sa.getResourceId(iconRes, 0);
        if (iconVal != 0) {
            outInfo.icon = iconVal;
            outInfo.nonLocalizedLabel = null;
        }

        TypedValue v = sa.peekValue(labelRes);
        if (v != null && (outInfo.labelRes=v.resourceId) == 0) {
            outInfo.nonLocalizedLabel = v.coerceToString();
        }

        outInfo.packageName = owner.packageName;

        return true;
    }

    private boolean parseComponentInfo(Package owner, int flags,
            ComponentInfo outInfo, String[] outError, String tag, TypedArray sa,
            int nameRes, int labelRes, int iconRes, int processRes,
            int enabledRes) {
        if (!parsePackageItemInfo(owner, outInfo, outError, tag, sa,
                nameRes, labelRes, iconRes)) {
            return false;
        }

        if (processRes != 0) {
            outInfo.processName = buildProcessName(owner.applicationInfo.packageName,
                    owner.applicationInfo.processName, sa.getNonResourceString(processRes),
                    flags, mSeparateProcesses, outError);
        }
        outInfo.enabled = sa.getBoolean(enabledRes, true);

        return outError[0] == null;
    }

    private Activity parseActivity(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, int flags, String[] outError,
            boolean receiver) throws XmlPullParserException, IOException {
        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestActivity);

        Activity a = new Activity(owner);

        if (!parseComponentInfo(owner, flags, a.info, outError,
                receiver ? "<receiver>" : "<activity>", sa,
                com.android.internal.R.styleable.AndroidManifestActivity_name,
                com.android.internal.R.styleable.AndroidManifestActivity_label,
                com.android.internal.R.styleable.AndroidManifestActivity_icon,
                com.android.internal.R.styleable.AndroidManifestActivity_process,
                com.android.internal.R.styleable.AndroidManifestActivity_enabled)) {
            sa.recycle();
            return null;
        }

        final boolean setExported = sa.hasValue(
                com.android.internal.R.styleable.AndroidManifestActivity_exported);
        if (setExported) {
            a.info.exported = sa.getBoolean(
                    com.android.internal.R.styleable.AndroidManifestActivity_exported, false);
        }

        a.component = new ComponentName(owner.applicationInfo.packageName,
                a.info.name);

        a.info.theme = sa.getResourceId(
                com.android.internal.R.styleable.AndroidManifestActivity_theme, 0);

        String str;
        str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestActivity_permission);
        if (str == null) {
            a.info.permission = owner.applicationInfo.permission;
        } else {
            a.info.permission = str.length() > 0 ? str.toString().intern() : null;
        }

        str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestActivity_taskAffinity);
        a.info.taskAffinity = buildTaskAffinityName(owner.applicationInfo.packageName,
                owner.applicationInfo.taskAffinity, str, outError);

        a.info.flags = 0;
        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_multiprocess,
                false)) {
            a.info.flags |= ActivityInfo.FLAG_MULTIPROCESS;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_finishOnTaskLaunch,
                false)) {
            a.info.flags |= ActivityInfo.FLAG_FINISH_ON_TASK_LAUNCH;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_clearTaskOnLaunch,
                false)) {
            a.info.flags |= ActivityInfo.FLAG_CLEAR_TASK_ON_LAUNCH;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_noHistory,
                false)) {
            a.info.flags |= ActivityInfo.FLAG_NO_HISTORY;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_alwaysRetainTaskState,
                false)) {
            a.info.flags |= ActivityInfo.FLAG_ALWAYS_RETAIN_TASK_STATE;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_stateNotNeeded,
                false)) {
            a.info.flags |= ActivityInfo.FLAG_STATE_NOT_NEEDED;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_excludeFromRecents,
                false)) {
            a.info.flags |= ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS;
        }

        if (sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestActivity_allowTaskReparenting,
                (owner.applicationInfo.flags&ApplicationInfo.FLAG_ALLOW_TASK_REPARENTING) != 0)) {
            a.info.flags |= ActivityInfo.FLAG_ALLOW_TASK_REPARENTING;
        }

        if (!receiver) {
            a.info.launchMode = sa.getInt(
                    com.android.internal.R.styleable.AndroidManifestActivity_launchMode,
                    ActivityInfo.LAUNCH_MULTIPLE);
            a.info.screenOrientation = sa.getInt(
                    com.android.internal.R.styleable.AndroidManifestActivity_screenOrientation,
                    ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED);
            a.info.configChanges = sa.getInt(
                    com.android.internal.R.styleable.AndroidManifestActivity_configChanges,
                    0);
            a.info.softInputMode = sa.getInt(
                    com.android.internal.R.styleable.AndroidManifestActivity_windowSoftInputMode,
                    0);
        } else {
            a.info.launchMode = ActivityInfo.LAUNCH_MULTIPLE;
            a.info.configChanges = 0;
        }

        sa.recycle();

        if (outError[0] != null) {
            return null;
        }

        int outerDepth = parser.getDepth();
        int type;
        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
               && (type != XmlPullParser.END_TAG
                       || parser.getDepth() > outerDepth)) {
            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
                continue;
            }

            if (parser.getName().equals("intent-filter")) {
                ActivityIntentInfo intent = new ActivityIntentInfo(a);
                if (!parseIntent(res, parser, attrs, flags, intent, outError, !receiver)) {
                    return null;
                }
                if (intent.countActions() == 0) {
                    Log.w(TAG, "Intent filter for activity " + intent
                            + " defines no actions");
                } else {
                    a.intents.add(intent);
                }
            } else if (parser.getName().equals("meta-data")) {
                if ((a.metaData=parseMetaData(res, parser, attrs, a.metaData,
                        outError)) == null) {
                    return null;
                }
            } else {
                if (!RIGID_PARSER) {
                    Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                    if (receiver) {
                        Log.w(TAG, "Unknown element under <receiver>: " + parser.getName());
                    } else {
                        Log.w(TAG, "Unknown element under <activity>: " + parser.getName());
                    }
                    XmlUtils.skipCurrentTag(parser);
                    continue;
                }
                if (receiver) {
                    outError[0] = "Bad element under <receiver>: " + parser.getName();
                } else {
                    outError[0] = "Bad element under <activity>: " + parser.getName();
                }
                return null;
            }
        }

        if (!setExported) {
            a.info.exported = a.intents.size() > 0;
        }

        return a;
    }

    private Activity parseActivityAlias(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, int flags, String[] outError,
            boolean receiver) throws XmlPullParserException, IOException {
        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestActivityAlias);

        String targetActivity = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestActivityAlias_targetActivity);
        if (targetActivity == null) {
            outError[0] = "<activity-alias> does not specify android:targetActivity";
            sa.recycle();
            return null;
        }

        targetActivity = buildClassName(owner.applicationInfo.packageName,
                targetActivity, outError);
        if (targetActivity == null) {
            sa.recycle();
            return null;
        }

        Activity a = new Activity(owner);
        Activity target = null;

        final int NA = owner.activities.size();
        for (int i=0; i<NA; i++) {
            Activity t = owner.activities.get(i);
            if (targetActivity.equals(t.info.name)) {
                target = t;
                break;
            }
        }

        if (target == null) {
            outError[0] = "<activity-alias> target activity " + targetActivity
                    + " not found in manifest";
            sa.recycle();
            return null;
        }

        a.info.targetActivity = targetActivity;

        a.info.configChanges = target.info.configChanges;
        a.info.flags = target.info.flags;
        a.info.icon = target.info.icon;
        a.info.labelRes = target.info.labelRes;
        a.info.launchMode = target.info.launchMode;
        a.info.nonLocalizedLabel = target.info.nonLocalizedLabel;
        a.info.processName = target.info.processName;
        a.info.screenOrientation = target.info.screenOrientation;
        a.info.taskAffinity = target.info.taskAffinity;
        a.info.theme = target.info.theme;

        if (!parseComponentInfo(owner, flags, a.info, outError,
                receiver ? "<receiver>" : "<activity>", sa,
                com.android.internal.R.styleable.AndroidManifestActivityAlias_name,
                com.android.internal.R.styleable.AndroidManifestActivityAlias_label,
                com.android.internal.R.styleable.AndroidManifestActivityAlias_icon,
                0,
                com.android.internal.R.styleable.AndroidManifestActivityAlias_enabled)) {
            sa.recycle();
            return null;
        }

        final boolean setExported = sa.hasValue(
                com.android.internal.R.styleable.AndroidManifestActivityAlias_exported);
        if (setExported) {
            a.info.exported = sa.getBoolean(
                    com.android.internal.R.styleable.AndroidManifestActivityAlias_exported, false);
        }

        a.component = new ComponentName(owner.applicationInfo.packageName,
                a.info.name);

        String str;
        str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestActivityAlias_permission);
        if (str != null) {
            a.info.permission = str.length() > 0 ? str.toString().intern() : null;
        }

        sa.recycle();

        if (outError[0] != null) {
            return null;
        }

        int outerDepth = parser.getDepth();
        int type;
        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
               && (type != XmlPullParser.END_TAG
                       || parser.getDepth() > outerDepth)) {
            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
                continue;
            }

            if (parser.getName().equals("intent-filter")) {
                ActivityIntentInfo intent = new ActivityIntentInfo(a);
                if (!parseIntent(res, parser, attrs, flags, intent, outError, true)) {
                    return null;
                }
                if (intent.countActions() == 0) {
                    Log.w(TAG, "Intent filter for activity alias " + intent
                            + " defines no actions");
                } else {
                    a.intents.add(intent);
                }
            } else if (parser.getName().equals("meta-data")) {
                if ((a.metaData=parseMetaData(res, parser, attrs, a.metaData,
                        outError)) == null) {
                    return null;
                }
            } else {
                if (!RIGID_PARSER) {
                    Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                    Log.w(TAG, "Unknown element under <activity-alias>: " + parser.getName());
                    XmlUtils.skipCurrentTag(parser);
                    continue;
                }
                outError[0] = "Bad element under <activity-alias>: " + parser.getName();
                return null;
            }
        }

        if (!setExported) {
            a.info.exported = a.intents.size() > 0;
        }

        return a;
    }

    private Provider parseProvider(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, int flags, String[] outError)
            throws XmlPullParserException, IOException {
        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestProvider);

        Provider p = new Provider(owner);

        if (!parseComponentInfo(owner, flags, p.info, outError, "<provider>", sa,
                com.android.internal.R.styleable.AndroidManifestProvider_name,
                com.android.internal.R.styleable.AndroidManifestProvider_label,
                com.android.internal.R.styleable.AndroidManifestProvider_icon,
                com.android.internal.R.styleable.AndroidManifestProvider_process,
                com.android.internal.R.styleable.AndroidManifestProvider_enabled)) {
            sa.recycle();
            return null;
        }

        p.info.exported = sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestProvider_exported, true);

        p.component = new ComponentName(owner.applicationInfo.packageName,
                p.info.name);

        String cpname = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestProvider_authorities);

        p.info.isSyncable = sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestProvider_syncable,
                false);

        String permission = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestProvider_permission);
        String str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestProvider_readPermission);
        if (str == null) {
            str = permission;
        }
        if (str == null) {
            p.info.readPermission = owner.applicationInfo.permission;
        } else {
            p.info.readPermission =
                str.length() > 0 ? str.toString().intern() : null;
        }
        str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestProvider_writePermission);
        if (str == null) {
            str = permission;
        }
        if (str == null) {
            p.info.writePermission = owner.applicationInfo.permission;
        } else {
            p.info.writePermission =
                str.length() > 0 ? str.toString().intern() : null;
        }

        p.info.grantUriPermissions = sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestProvider_grantUriPermissions,
                false);

        p.info.multiprocess = sa.getBoolean(
                com.android.internal.R.styleable.AndroidManifestProvider_multiprocess,
                false);

        p.info.initOrder = sa.getInt(
                com.android.internal.R.styleable.AndroidManifestProvider_initOrder,
                0);

        sa.recycle();

        if (cpname == null) {
            outError[0] = "<provider> does not incude authorities attribute";
            return null;
        }
        p.info.authority = cpname.intern();

        if (!parseProviderTags(res, parser, attrs, p, outError)) {
            return null;
        }

        return p;
    }

    private boolean parseProviderTags(Resources res,
            XmlPullParser parser, AttributeSet attrs,
            Provider outInfo, String[] outError)
            throws XmlPullParserException, IOException {
        int outerDepth = parser.getDepth();
        int type;
        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
               && (type != XmlPullParser.END_TAG
                       || parser.getDepth() > outerDepth)) {
            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
                continue;
            }

            if (parser.getName().equals("meta-data")) {
                if ((outInfo.metaData=parseMetaData(res, parser, attrs,
                        outInfo.metaData, outError)) == null) {
                    return false;
                }
            } else if (parser.getName().equals("grant-uri-permission")) {
                TypedArray sa = res.obtainAttributes(attrs,
                        com.android.internal.R.styleable.AndroidManifestGrantUriPermission);

                PatternMatcher pa = null;

                String str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestGrantUriPermission_path);
                if (str != null) {
                    pa = new PatternMatcher(str, PatternMatcher.PATTERN_LITERAL);
                }

                str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestGrantUriPermission_pathPrefix);
                if (str != null) {
                    pa = new PatternMatcher(str, PatternMatcher.PATTERN_PREFIX);
                }

                str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestGrantUriPermission_pathPattern);
                if (str != null) {
                    pa = new PatternMatcher(str, PatternMatcher.PATTERN_SIMPLE_GLOB);
                }

                sa.recycle();

                if (pa != null) {
                    if (outInfo.info.uriPermissionPatterns == null) {
                        outInfo.info.uriPermissionPatterns = new PatternMatcher[1];
                        outInfo.info.uriPermissionPatterns[0] = pa;
                    } else {
                        final int N = outInfo.info.uriPermissionPatterns.length;
                        PatternMatcher[] newp = new PatternMatcher[N+1];
                        System.arraycopy(outInfo.info.uriPermissionPatterns, 0, newp, 0, N);
                        newp[N] = pa;
                        outInfo.info.uriPermissionPatterns = newp;
                    }
                    outInfo.info.grantUriPermissions = true;
                }
                XmlUtils.skipCurrentTag(parser);

            } else {
                if (!RIGID_PARSER) {
                    Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                    Log.w(TAG, "Unknown element under <provider>: "
                            + parser.getName());
                    XmlUtils.skipCurrentTag(parser);
                    continue;
                }
                outError[0] = "Bad element under <provider>: "
                    + parser.getName();
                return false;
            }
        }
        return true;
    }

    private Service parseService(Package owner, Resources res,
            XmlPullParser parser, AttributeSet attrs, int flags, String[] outError)
            throws XmlPullParserException, IOException {
        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestService);

        Service s = new Service(owner);

        if (!parseComponentInfo(owner, flags, s.info, outError, "<service>", sa,
                com.android.internal.R.styleable.AndroidManifestService_name,
                com.android.internal.R.styleable.AndroidManifestService_label,
                com.android.internal.R.styleable.AndroidManifestService_icon,
                com.android.internal.R.styleable.AndroidManifestService_process,
                com.android.internal.R.styleable.AndroidManifestService_enabled)) {
            sa.recycle();
            return null;
        }

        final boolean setExported = sa.hasValue(
                com.android.internal.R.styleable.AndroidManifestService_exported);
        if (setExported) {
            s.info.exported = sa.getBoolean(
                    com.android.internal.R.styleable.AndroidManifestService_exported, false);
        }

        s.component = new ComponentName(owner.applicationInfo.packageName,
                s.info.name);

        String str = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestService_permission);
        if (str == null) {
            s.info.permission = owner.applicationInfo.permission;
        } else {
            s.info.permission = str.length() > 0 ? str.toString().intern() : null;
        }

        sa.recycle();

        int outerDepth = parser.getDepth();
        int type;
        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
               && (type != XmlPullParser.END_TAG
                       || parser.getDepth() > outerDepth)) {
            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
                continue;
            }

            if (parser.getName().equals("intent-filter")) {
                ServiceIntentInfo intent = new ServiceIntentInfo(s);
                if (!parseIntent(res, parser, attrs, flags, intent, outError, false)) {
                    return null;
                }

                s.intents.add(intent);
            } else if (parser.getName().equals("meta-data")) {
                if ((s.metaData=parseMetaData(res, parser, attrs, s.metaData,
                        outError)) == null) {
                    return null;
                }
            } else {
                if (!RIGID_PARSER) {
                    Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                    Log.w(TAG, "Unknown element under <service>: "
                            + parser.getName());
                    XmlUtils.skipCurrentTag(parser);
                    continue;
                }
                outError[0] = "Bad element under <service>: "
                    + parser.getName();
                return null;
            }
        }

        if (!setExported) {
            s.info.exported = s.intents.size() > 0;
        }

        return s;
    }

    private boolean parseAllMetaData(Resources res,
            XmlPullParser parser, AttributeSet attrs, String tag,
            Component outInfo, String[] outError)
            throws XmlPullParserException, IOException {
        int outerDepth = parser.getDepth();
        int type;
        while ((type=parser.next()) != XmlPullParser.END_DOCUMENT
               && (type != XmlPullParser.END_TAG
                       || parser.getDepth() > outerDepth)) {
            if (type == XmlPullParser.END_TAG || type == XmlPullParser.TEXT) {
                continue;
            }

            if (parser.getName().equals("meta-data")) {
                if ((outInfo.metaData=parseMetaData(res, parser, attrs,
                        outInfo.metaData, outError)) == null) {
                    return false;
                }
            } else {
                if (!RIGID_PARSER) {
                    Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                    Log.w(TAG, "Unknown element under " + tag + ": "
                            + parser.getName());
                    XmlUtils.skipCurrentTag(parser);
                    continue;
                }
                outError[0] = "Bad element under " + tag + ": "
                    + parser.getName();
                return false;
            }
        }
        return true;
    }

    private Bundle parseMetaData(Resources res,
            XmlPullParser parser, AttributeSet attrs,
            Bundle data, String[] outError)
            throws XmlPullParserException, IOException {

        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestMetaData);

        if (data == null) {
            data = new Bundle();
        }

        String name = sa.getNonResourceString(
                com.android.internal.R.styleable.AndroidManifestMetaData_name);
        if (name == null) {
            outError[0] = "<meta-data> requires an android:name attribute";
            sa.recycle();
            return null;
        }

        boolean success = true;

        TypedValue v = sa.peekValue(
                com.android.internal.R.styleable.AndroidManifestMetaData_resource);
        if (v != null && v.resourceId != 0) {
            //Log.i(TAG, "Meta data ref " + name + ": " + v);
            data.putInt(name, v.resourceId);
        } else {
            v = sa.peekValue(
                    com.android.internal.R.styleable.AndroidManifestMetaData_value);
            //Log.i(TAG, "Meta data " + name + ": " + v);
            if (v != null) {
                if (v.type == TypedValue.TYPE_STRING) {
                    CharSequence cs = v.coerceToString();
                    data.putString(name, cs != null ? cs.toString() : null);
                } else if (v.type == TypedValue.TYPE_INT_BOOLEAN) {
                    data.putBoolean(name, v.data != 0);
                } else if (v.type >= TypedValue.TYPE_FIRST_INT
                        && v.type <= TypedValue.TYPE_LAST_INT) {
                    data.putInt(name, v.data);
                } else if (v.type == TypedValue.TYPE_FLOAT) {
                    data.putFloat(name, v.getFloat());
                } else {
                    if (!RIGID_PARSER) {
                        Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                        Log.w(TAG, "<meta-data> only supports string, integer, float, color, boolean, and resource reference types");
                    } else {
                        outError[0] = "<meta-data> only supports string, integer, float, color, boolean, and resource reference types";
                        data = null;
                    }
                }
            } else {
                outError[0] = "<meta-data> requires an android:value or android:resource attribute";
                data = null;
            }
        }

        sa.recycle();

        XmlUtils.skipCurrentTag(parser);

        return data;
    }

    private static final String ANDROID_RESOURCES
            = "http://schemas.android.com/apk/res/android";

    private boolean parseIntent(Resources res,
            XmlPullParser parser, AttributeSet attrs, int flags,
            IntentInfo outInfo, String[] outError, boolean isActivity)
            throws XmlPullParserException, IOException {

        TypedArray sa = res.obtainAttributes(attrs,
                com.android.internal.R.styleable.AndroidManifestIntentFilter);

        int priority = sa.getInt(
                com.android.internal.R.styleable.AndroidManifestIntentFilter_priority, 0);
        if (priority > 0 && isActivity && (flags&PARSE_IS_SYSTEM) == 0) {
            Log.w(TAG, "Activity with priority > 0, forcing to 0 at "
                    + parser.getPositionDescription());
            priority = 0;
        }
        outInfo.setPriority(priority);
        
        TypedValue v = sa.peekValue(
                com.android.internal.R.styleable.AndroidManifestIntentFilter_label);
        if (v != null && (outInfo.labelRes=v.resourceId) == 0) {
            outInfo.nonLocalizedLabel = v.coerceToString();
        }

        outInfo.icon = sa.getResourceId(
                com.android.internal.R.styleable.AndroidManifestIntentFilter_icon, 0);

        sa.recycle();

        int outerDepth = parser.getDepth();
        int type;
        while ((type=parser.next()) != parser.END_DOCUMENT
               && (type != parser.END_TAG || parser.getDepth() > outerDepth)) {
            if (type == parser.END_TAG || type == parser.TEXT) {
                continue;
            }

            String nodeName = parser.getName();
            if (nodeName.equals("action")) {
                String value = attrs.getAttributeValue(
                        ANDROID_RESOURCES, "name");
                if (value == null || value == "") {
                    outError[0] = "No value supplied for <android:name>";
                    return false;
                }
                XmlUtils.skipCurrentTag(parser);

                outInfo.addAction(value);
            } else if (nodeName.equals("category")) {
                String value = attrs.getAttributeValue(
                        ANDROID_RESOURCES, "name");
                if (value == null || value == "") {
                    outError[0] = "No value supplied for <android:name>";
                    return false;
                }
                XmlUtils.skipCurrentTag(parser);

                outInfo.addCategory(value);

            } else if (nodeName.equals("data")) {
                sa = res.obtainAttributes(attrs,
                        com.android.internal.R.styleable.AndroidManifestData);

                String str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestData_mimeType);
                if (str != null) {
                    try {
                        outInfo.addDataType(str);
                    } catch (IntentFilter.MalformedMimeTypeException e) {
                        outError[0] = e.toString();
                        sa.recycle();
                        return false;
                    }
                }

                str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestData_scheme);
                if (str != null) {
                    outInfo.addDataScheme(str);
                }

                String host = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestData_host);
                String port = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestData_port);
                if (host != null) {
                    outInfo.addDataAuthority(host, port);
                }

                str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestData_path);
                if (str != null) {
                    outInfo.addDataPath(str, PatternMatcher.PATTERN_LITERAL);
                }

                str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestData_pathPrefix);
                if (str != null) {
                    outInfo.addDataPath(str, PatternMatcher.PATTERN_PREFIX);
                }

                str = sa.getNonResourceString(
                        com.android.internal.R.styleable.AndroidManifestData_pathPattern);
                if (str != null) {
                    outInfo.addDataPath(str, PatternMatcher.PATTERN_SIMPLE_GLOB);
                }

                sa.recycle();
                XmlUtils.skipCurrentTag(parser);
            } else if (!RIGID_PARSER) {
                Log.w(TAG, "Problem in package " + mArchiveSourcePath + ":");
                Log.w(TAG, "Unknown element under <intent-filter>: " + parser.getName());
                XmlUtils.skipCurrentTag(parser);
            } else {
                outError[0] = "Bad element under <intent-filter>: " + parser.getName();
                return false;
            }
        }

        outInfo.hasDefault = outInfo.hasCategory(Intent.CATEGORY_DEFAULT);
        if (false) {
            String cats = "";
            Iterator<String> it = outInfo.categoriesIterator();
            while (it != null && it.hasNext()) {
                cats += " " + it.next();
            }
            System.out.println("Intent d=" +
                    outInfo.hasDefault + ", cat=" + cats);
        }

        return true;
    }

    public final static class Package {
        public final String packageName;

        // For now we only support one application per package.
        public final ApplicationInfo applicationInfo = new ApplicationInfo();

        public final ArrayList<Permission> permissions = new ArrayList<Permission>(0);
        public final ArrayList<PermissionGroup> permissionGroups = new ArrayList<PermissionGroup>(0);
        public final ArrayList<Activity> activities = new ArrayList<Activity>(0);
        public final ArrayList<Activity> receivers = new ArrayList<Activity>(0);
        public final ArrayList<Provider> providers = new ArrayList<Provider>(0);
        public final ArrayList<Service> services = new ArrayList<Service>(0);
        public final ArrayList<Instrumentation> instrumentation = new ArrayList<Instrumentation>(0);

        public final ArrayList<String> requestedPermissions = new ArrayList<String>();

        public final ArrayList<String> usesLibraries = new ArrayList<String>();
        public String[] usesLibraryFiles = null;

        // We store the application meta-data independently to avoid multiple unwanted references
        public Bundle mAppMetaData = null;

        public final ArrayList<Integer> supportsDensityList = new ArrayList<Integer>();
        public int[] supportsDensities = null;

        // If this is a 3rd party app, this is the path of the zip file.
        public String mPath;

        // True if this package is part of the system image.
        public boolean mSystem;

        // The version code declared for this package.
        public int mVersionCode;
        
        // The version name declared for this package.
        public String mVersionName;
        
        // The shared user id that this package wants to use.
        public String mSharedUserId;

        // The shared user label that this package wants to use.
        public int mSharedUserLabel;

        // Signatures that were read from the package.
        public Signature mSignatures[];

        // For use by package manager service for quick lookup of
        // preferred up order.
        public int mPreferredOrder = 0;

        // Additional data supplied by callers.
        public Object mExtras;
        
        /*
         *  Applications hardware preferences
         */
        public final ArrayList<ConfigurationInfo> configPreferences =
                new ArrayList<ConfigurationInfo>();

        public Package(String _name) {
            packageName = _name;
            applicationInfo.packageName = _name;
            applicationInfo.uid = -1;
        }

        public String toString() {
            return "Package{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + packageName + "}";
        }
    }

    public static class Component<II extends IntentInfo> {
        public final Package owner;
        public final ArrayList<II> intents = new ArrayList<II>(0);
        public ComponentName component;
        public Bundle metaData;

        public Component(Package _owner) {
            owner = _owner;
        }

        public Component(Component<II> clone) {
            owner = clone.owner;
            metaData = clone.metaData;
        }
    }
    
    public final static class Permission extends Component<IntentInfo> {
        public final PermissionInfo info;
        public boolean tree;
        public PermissionGroup group;

        public Permission(Package _owner) {
            super(_owner);
            info = new PermissionInfo();
        }

        public Permission(Package _owner, PermissionInfo _info) {
            super(_owner);
            info = _info;
        }

        public String toString() {
            return "Permission{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + info.name + "}";
        }
    }

    public final static class PermissionGroup extends Component<IntentInfo> {
        public final PermissionGroupInfo info;

        public PermissionGroup(Package _owner) {
            super(_owner);
            info = new PermissionGroupInfo();
        }

        public PermissionGroup(Package _owner, PermissionGroupInfo _info) {
            super(_owner);
            info = _info;
        }

        public String toString() {
            return "PermissionGroup{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + info.name + "}";
        }
    }

    private static boolean copyNeeded(int flags, Package p, Bundle metaData) {
        if ((flags & PackageManager.GET_META_DATA) != 0
                && (metaData != null || p.mAppMetaData != null)) {
            return true;
        }
        if ((flags & PackageManager.GET_SHARED_LIBRARY_FILES) != 0
                && p.usesLibraryFiles != null) {
            return true;
        }
        if ((flags & PackageManager.GET_SUPPORTS_DENSITIES) != 0
            && p.supportsDensities != null) {
            return true;
        }
        return false;
    }

    public static ApplicationInfo generateApplicationInfo(Package p, int flags) {
        if (p == null) return null;
        if (!copyNeeded(flags, p, null)) {
            return p.applicationInfo;
        }

        // Make shallow copy so we can store the metadata/libraries safely
        ApplicationInfo ai = new ApplicationInfo(p.applicationInfo);
        if ((flags & PackageManager.GET_META_DATA) != 0) {
            ai.metaData = p.mAppMetaData;
        }
        if ((flags & PackageManager.GET_SHARED_LIBRARY_FILES) != 0) {
            ai.sharedLibraryFiles = p.usesLibraryFiles;
        }
        if ((flags & PackageManager.GET_SUPPORTS_DENSITIES) != 0) {
            ai.supportsDensities = p.supportsDensities;
        }
        return ai;
    }

    public static final PermissionInfo generatePermissionInfo(
            Permission p, int flags) {
        if (p == null) return null;
        if ((flags&PackageManager.GET_META_DATA) == 0) {
            return p.info;
        }
        PermissionInfo pi = new PermissionInfo(p.info);
        pi.metaData = p.metaData;
        return pi;
    }

    public static final PermissionGroupInfo generatePermissionGroupInfo(
            PermissionGroup pg, int flags) {
        if (pg == null) return null;
        if ((flags&PackageManager.GET_META_DATA) == 0) {
            return pg.info;
        }
        PermissionGroupInfo pgi = new PermissionGroupInfo(pg.info);
        pgi.metaData = pg.metaData;
        return pgi;
    }

    public final static class Activity extends Component<ActivityIntentInfo> {
        public final ActivityInfo info =
                new ActivityInfo();

        public Activity(Package _owner) {
            super(_owner);
            info.applicationInfo = owner.applicationInfo;
        }

        public String toString() {
            return "Activity{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + component.flattenToString() + "}";
        }
    }

    public static final ActivityInfo generateActivityInfo(Activity a,
            int flags) {
        if (a == null) return null;
        if (!copyNeeded(flags, a.owner, a.metaData)) {
            return a.info;
        }
        // Make shallow copies so we can store the metadata safely
        ActivityInfo ai = new ActivityInfo(a.info);
        ai.metaData = a.metaData;
        ai.applicationInfo = generateApplicationInfo(a.owner, flags);
        return ai;
    }

    public final static class Service extends Component<ServiceIntentInfo> {
        public final ServiceInfo info =
                new ServiceInfo();

        public Service(Package _owner) {
            super(_owner);
            info.applicationInfo = owner.applicationInfo;
        }

        public String toString() {
            return "Service{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + component.flattenToString() + "}";
        }
    }

    public static final ServiceInfo generateServiceInfo(Service s, int flags) {
        if (s == null) return null;
        if (!copyNeeded(flags, s.owner, s.metaData)) {
            return s.info;
        }
        // Make shallow copies so we can store the metadata safely
        ServiceInfo si = new ServiceInfo(s.info);
        si.metaData = s.metaData;
        si.applicationInfo = generateApplicationInfo(s.owner, flags);
        return si;
    }

    public final static class Provider extends Component {
        public final ProviderInfo info;
        public boolean syncable;

        public Provider(Package _owner) {
            super(_owner);
            info = new ProviderInfo();
            info.applicationInfo = owner.applicationInfo;
            syncable = false;
        }

        public Provider(Provider existingProvider) {
            super(existingProvider);
            this.info = existingProvider.info;
            this.syncable = existingProvider.syncable;
        }

        public String toString() {
            return "Provider{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + info.name + "}";
        }
    }

    public static final ProviderInfo generateProviderInfo(Provider p,
            int flags) {
        if (p == null) return null;
        if (!copyNeeded(flags, p.owner, p.metaData)
                && ((flags & PackageManager.GET_URI_PERMISSION_PATTERNS) != 0
                        || p.info.uriPermissionPatterns == null)) {
            return p.info;
        }
        // Make shallow copies so we can store the metadata safely
        ProviderInfo pi = new ProviderInfo(p.info);
        pi.metaData = p.metaData;
        if ((flags & PackageManager.GET_URI_PERMISSION_PATTERNS) == 0) {
            pi.uriPermissionPatterns = null;
        }
        pi.applicationInfo = generateApplicationInfo(p.owner, flags);
        return pi;
    }

    public final static class Instrumentation extends Component {
        public final InstrumentationInfo info =
                new InstrumentationInfo();

        public Instrumentation(Package _owner) {
            super(_owner);
        }

        public String toString() {
            return "Instrumentation{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + component.flattenToString() + "}";
        }
    }

    public static final InstrumentationInfo generateInstrumentationInfo(
            Instrumentation i, int flags) {
        if (i == null) return null;
        if ((flags&PackageManager.GET_META_DATA) == 0) {
            return i.info;
        }
        InstrumentationInfo ii = new InstrumentationInfo(i.info);
        ii.metaData = i.metaData;
        return ii;
    }

    public static class IntentInfo extends IntentFilter {
        public boolean hasDefault;
        public int labelRes;
        public CharSequence nonLocalizedLabel;
        public int icon;
    }

    public final static class ActivityIntentInfo extends IntentInfo {
        public final Activity activity;

        public ActivityIntentInfo(Activity _activity) {
            activity = _activity;
        }

        public String toString() {
            return "ActivityIntentInfo{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + activity.info.name + "}";
        }
    }

    public final static class ServiceIntentInfo extends IntentInfo {
        public final Service service;

        public ServiceIntentInfo(Service _service) {
            service = _service;
        }

        public String toString() {
            return "ServiceIntentInfo{"
                + Integer.toHexString(System.identityHashCode(this))
                + " " + service.info.name + "}";
        }
    }
}