Examples with JournaledFile com.android.internal.util.JournaledFile used on opensource projects

Example 6 with JournaledFile

use of com.android.internal.util.JournaledFile in project android_frameworks_base by DirtyUnicorns.

the class Settings method writePackageListLPr.

void writePackageListLPr(int creatingUserId) {
    // Only derive GIDs for active users (not dying)
    final List<UserInfo> users = UserManagerService.getInstance().getUsers(true);
    int[] userIds = new int[users.size()];
    for (int i = 0; i < userIds.length; i++) {
        userIds[i] = users.get(i).id;
    }
    if (creatingUserId != -1) {
        userIds = ArrayUtils.appendInt(userIds, creatingUserId);
    }
    // Write package list file now, use a JournaledFile.
    File tempFile = new File(mPackageListFilename.getAbsolutePath() + ".tmp");
    JournaledFile journal = new JournaledFile(mPackageListFilename, tempFile);
    final File writeTarget = journal.chooseForWrite();
    FileOutputStream fstr;
    BufferedWriter writer = null;
    try {
        fstr = new FileOutputStream(writeTarget);
        writer = new BufferedWriter(new OutputStreamWriter(fstr, Charset.defaultCharset()));
        FileUtils.setPermissions(fstr.getFD(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);
        StringBuilder sb = new StringBuilder();
        for (final PackageSetting pkg : mPackages.values()) {
            if (pkg.pkg == null || pkg.pkg.applicationInfo == null || pkg.pkg.applicationInfo.dataDir == null) {
                if (!"android".equals(pkg.name)) {
                    Slog.w(TAG, "Skipping " + pkg + " due to missing metadata");
                }
                continue;
            }
            final ApplicationInfo ai = pkg.pkg.applicationInfo;
            final String dataPath = ai.dataDir;
            final boolean isDebug = (ai.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
            final int[] gids = pkg.getPermissionsState().computeGids(userIds);
            // Avoid any application that has a space in its path.
            if (dataPath.indexOf(' ') >= 0)
                continue;
            // we store on each line the following information for now:
            //
            // pkgName    - package name
            // userId     - application-specific user id
            // debugFlag  - 0 or 1 if the package is debuggable.
            // dataPath   - path to package's data path
            // seinfo     - seinfo label for the app (assigned at install time)
            // gids       - supplementary gids this app launches with
            //
            // NOTE: We prefer not to expose all ApplicationInfo flags for now.
            //
            // DO NOT MODIFY THIS FORMAT UNLESS YOU CAN ALSO MODIFY ITS USERS
            // FROM NATIVE CODE. AT THE MOMENT, LOOK AT THE FOLLOWING SOURCES:
            //   frameworks/base/libs/packagelistparser
            //   system/core/run-as/run-as.c
            //
            sb.setLength(0);
            sb.append(ai.packageName);
            sb.append(" ");
            sb.append(ai.uid);
            sb.append(isDebug ? " 1 " : " 0 ");
            sb.append(dataPath);
            sb.append(" ");
            sb.append(ai.seinfo);
            sb.append(" ");
            if (gids != null && gids.length > 0) {
                sb.append(gids[0]);
                for (int i = 1; i < gids.length; i++) {
                    sb.append(",");
                    sb.append(gids[i]);
                }
            } else {
                sb.append("none");
            }
            sb.append("\n");
            writer.append(sb);
        }
        writer.flush();
        FileUtils.sync(fstr);
        writer.close();
        journal.commit();
    } catch (Exception e) {
        Slog.wtf(TAG, "Failed to write packages.list", e);
        IoUtils.closeQuietly(writer);
        journal.rollback();
    }
}

Example 7 with JournaledFile

use of com.android.internal.util.JournaledFile in project android_frameworks_base by DirtyUnicorns.

the class WallpaperManagerService method loadSettingsLocked.

private void loadSettingsLocked(int userId, boolean keepDimensionHints) {
    if (DEBUG)
        Slog.v(TAG, "loadSettingsLocked");
    JournaledFile journal = makeJournaledFile(userId);
    FileInputStream stream = null;
    File file = journal.chooseForRead();
    if (!file.exists()) {
        // This should only happen one time, when upgrading from a legacy system
        migrateFromOld();
    }
    WallpaperData wallpaper = mWallpaperMap.get(userId);
    if (wallpaper == null) {
        wallpaper = new WallpaperData(userId, WALLPAPER, WALLPAPER_CROP);
        wallpaper.allowBackup = true;
        mWallpaperMap.put(userId, wallpaper);
        if (!wallpaper.cropExists()) {
            generateCrop(wallpaper);
        }
    }
    boolean success = false;
    try {
        stream = new FileInputStream(file);
        XmlPullParser parser = Xml.newPullParser();
        parser.setInput(stream, StandardCharsets.UTF_8.name());
        int type;
        do {
            type = parser.next();
            if (type == XmlPullParser.START_TAG) {
                String tag = parser.getName();
                if ("wp".equals(tag)) {
                    // Common to system + lock wallpapers
                    parseWallpaperAttributes(parser, wallpaper, keepDimensionHints);
                    // A system wallpaper might also be a live wallpaper
                    String comp = parser.getAttributeValue(null, "component");
                    wallpaper.nextWallpaperComponent = comp != null ? ComponentName.unflattenFromString(comp) : null;
                    if (wallpaper.nextWallpaperComponent == null || "android".equals(wallpaper.nextWallpaperComponent.getPackageName())) {
                        wallpaper.nextWallpaperComponent = mImageWallpaper;
                    }
                    if (DEBUG) {
                        Slog.v(TAG, "mWidth:" + wallpaper.width);
                        Slog.v(TAG, "mHeight:" + wallpaper.height);
                        Slog.v(TAG, "cropRect:" + wallpaper.cropHint);
                        Slog.v(TAG, "mName:" + wallpaper.name);
                        Slog.v(TAG, "mNextWallpaperComponent:" + wallpaper.nextWallpaperComponent);
                    }
                } else if ("kwp".equals(tag)) {
                    // keyguard-specific wallpaper for this user
                    WallpaperData lockWallpaper = mLockWallpaperMap.get(userId);
                    if (lockWallpaper == null) {
                        lockWallpaper = new WallpaperData(userId, WALLPAPER_LOCK_ORIG, WALLPAPER_LOCK_CROP);
                        mLockWallpaperMap.put(userId, lockWallpaper);
                    }
                    parseWallpaperAttributes(parser, lockWallpaper, false);
                }
            }
        } while (type != XmlPullParser.END_DOCUMENT);
        success = true;
    } catch (FileNotFoundException e) {
        Slog.w(TAG, "no current wallpaper -- first boot?");
    } catch (NullPointerException e) {
        Slog.w(TAG, "failed parsing " + file + " " + e);
    } catch (NumberFormatException e) {
        Slog.w(TAG, "failed parsing " + file + " " + e);
    } catch (XmlPullParserException e) {
        Slog.w(TAG, "failed parsing " + file + " " + e);
    } catch (IOException e) {
        Slog.w(TAG, "failed parsing " + file + " " + e);
    } catch (IndexOutOfBoundsException e) {
        Slog.w(TAG, "failed parsing " + file + " " + e);
    }
    IoUtils.closeQuietly(stream);
    if (!success) {
        wallpaper.width = -1;
        wallpaper.height = -1;
        wallpaper.cropHint.set(0, 0, 0, 0);
        wallpaper.padding.set(0, 0, 0, 0);
        wallpaper.name = "";
        mLockWallpaperMap.remove(userId);
    } else {
        if (wallpaper.wallpaperId <= 0) {
            wallpaper.wallpaperId = makeWallpaperIdLocked();
            if (DEBUG) {
                Slog.w(TAG, "Didn't set wallpaper id in loadSettingsLocked(" + userId + "); now " + wallpaper.wallpaperId);
            }
        }
    }
    ensureSaneWallpaperData(wallpaper);
    WallpaperData lockWallpaper = mLockWallpaperMap.get(userId);
    if (lockWallpaper != null) {
        ensureSaneWallpaperData(lockWallpaper);
    }
}

Example 8 with JournaledFile

use of com.android.internal.util.JournaledFile in project android_frameworks_base by DirtyUnicorns.

the class WallpaperManagerService method saveSettingsLocked.

private void saveSettingsLocked(int userId) {
    JournaledFile journal = makeJournaledFile(userId);
    FileOutputStream fstream = null;
    BufferedOutputStream stream = null;
    try {
        XmlSerializer out = new FastXmlSerializer();
        fstream = new FileOutputStream(journal.chooseForWrite(), false);
        stream = new BufferedOutputStream(fstream);
        out.setOutput(stream, StandardCharsets.UTF_8.name());
        out.startDocument(null, true);
        WallpaperData wallpaper;
        wallpaper = mWallpaperMap.get(userId);
        if (wallpaper != null) {
            writeWallpaperAttributes(out, "wp", wallpaper);
        }
        wallpaper = mLockWallpaperMap.get(userId);
        if (wallpaper != null) {
            writeWallpaperAttributes(out, "kwp", wallpaper);
        }
        out.endDocument();
        // also flushes fstream
        stream.flush();
        FileUtils.sync(fstream);
        // also closes fstream
        stream.close();
        journal.commit();
    } catch (IOException e) {
        IoUtils.closeQuietly(stream);
        journal.rollback();
    }
}

Example 9 with JournaledFile

use of com.android.internal.util.JournaledFile in project android_frameworks_base by ResurrectionRemix.

the class Settings method writePackageListLPr.

void writePackageListLPr(int creatingUserId) {
    // Only derive GIDs for active users (not dying)
    final List<UserInfo> users = UserManagerService.getInstance().getUsers(true);
    int[] userIds = new int[users.size()];
    for (int i = 0; i < userIds.length; i++) {
        userIds[i] = users.get(i).id;
    }
    if (creatingUserId != -1) {
        userIds = ArrayUtils.appendInt(userIds, creatingUserId);
    }
    // Write package list file now, use a JournaledFile.
    File tempFile = new File(mPackageListFilename.getAbsolutePath() + ".tmp");
    JournaledFile journal = new JournaledFile(mPackageListFilename, tempFile);
    final File writeTarget = journal.chooseForWrite();
    FileOutputStream fstr;
    BufferedWriter writer = null;
    try {
        fstr = new FileOutputStream(writeTarget);
        writer = new BufferedWriter(new OutputStreamWriter(fstr, Charset.defaultCharset()));
        FileUtils.setPermissions(fstr.getFD(), 0640, SYSTEM_UID, PACKAGE_INFO_GID);
        StringBuilder sb = new StringBuilder();
        for (final PackageSetting pkg : mPackages.values()) {
            if (pkg.pkg == null || pkg.pkg.applicationInfo == null || pkg.pkg.applicationInfo.dataDir == null) {
                if (!"android".equals(pkg.name)) {
                    Slog.w(TAG, "Skipping " + pkg + " due to missing metadata");
                }
                continue;
            }
            final ApplicationInfo ai = pkg.pkg.applicationInfo;
            final String dataPath = ai.dataDir;
            final boolean isDebug = (ai.flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0;
            final int[] gids = pkg.getPermissionsState().computeGids(userIds);
            // Avoid any application that has a space in its path.
            if (dataPath.indexOf(' ') >= 0)
                continue;
            // we store on each line the following information for now:
            //
            // pkgName    - package name
            // userId     - application-specific user id
            // debugFlag  - 0 or 1 if the package is debuggable.
            // dataPath   - path to package's data path
            // seinfo     - seinfo label for the app (assigned at install time)
            // gids       - supplementary gids this app launches with
            //
            // NOTE: We prefer not to expose all ApplicationInfo flags for now.
            //
            // DO NOT MODIFY THIS FORMAT UNLESS YOU CAN ALSO MODIFY ITS USERS
            // FROM NATIVE CODE. AT THE MOMENT, LOOK AT THE FOLLOWING SOURCES:
            //   frameworks/base/libs/packagelistparser
            //   system/core/run-as/run-as.c
            //
            sb.setLength(0);
            sb.append(ai.packageName);
            sb.append(" ");
            sb.append(ai.uid);
            sb.append(isDebug ? " 1 " : " 0 ");
            sb.append(dataPath);
            sb.append(" ");
            sb.append(ai.seinfo);
            sb.append(" ");
            if (gids != null && gids.length > 0) {
                sb.append(gids[0]);
                for (int i = 1; i < gids.length; i++) {
                    sb.append(",");
                    sb.append(gids[i]);
                }
            } else {
                sb.append("none");
            }
            sb.append("\n");
            writer.append(sb);
        }
        writer.flush();
        FileUtils.sync(fstr);
        writer.close();
        journal.commit();
    } catch (Exception e) {
        Slog.wtf(TAG, "Failed to write packages.list", e);
        IoUtils.closeQuietly(writer);
        journal.rollback();
    }
}

Example 10 with JournaledFile

use of com.android.internal.util.JournaledFile in project android_frameworks_base by ResurrectionRemix.

the class WallpaperManagerService method saveSettingsLocked.

private void saveSettingsLocked(int userId) {
    JournaledFile journal = makeJournaledFile(userId);
    FileOutputStream fstream = null;
    BufferedOutputStream stream = null;
    try {
        XmlSerializer out = new FastXmlSerializer();
        fstream = new FileOutputStream(journal.chooseForWrite(), false);
        stream = new BufferedOutputStream(fstream);
        out.setOutput(stream, StandardCharsets.UTF_8.name());
        out.startDocument(null, true);
        WallpaperData wallpaper;
        wallpaper = mWallpaperMap.get(userId);
        if (wallpaper != null) {
            writeWallpaperAttributes(out, "wp", wallpaper);
        }
        wallpaper = mLockWallpaperMap.get(userId);
        if (wallpaper != null) {
            writeWallpaperAttributes(out, "kwp", wallpaper);
        }
        out.endDocument();
        // also flushes fstream
        stream.flush();
        FileUtils.sync(fstream);
        // also closes fstream
        stream.close();
        journal.commit();
    } catch (IOException e) {
        IoUtils.closeQuietly(stream);
        journal.rollback();
    }
}