mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
585 lines
20 KiB
Java
585 lines
20 KiB
Java
/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.gecko;
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import org.mozilla.gecko.util.INIParser;
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import org.mozilla.gecko.util.INISection;
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import android.content.Context;
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import android.text.TextUtils;
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import android.util.Log;
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.FileReader;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.nio.charset.Charset;
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import java.util.Enumeration;
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import java.util.HashMap;
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import java.util.Hashtable;
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public final class GeckoProfile {
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private static final String LOGTAG = "GeckoProfile";
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// Used to "lock" the guest profile, so that we'll always restart in it
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private static final String LOCK_FILE_NAME = ".active_lock";
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private static HashMap<String, GeckoProfile> sProfileCache = new HashMap<String, GeckoProfile>();
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private static String sDefaultProfileName = null;
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private final String mName;
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private File mProfileDir;
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public static boolean sIsUsingCustomProfile = false;
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// Constants to cache whether or not a profile is "locked".
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private enum LockState {
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LOCKED,
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UNLOCKED,
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UNDEFINED
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};
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// Caches whether or not a profile is "locked". Only used by the guest profile to determine if it should
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// be reused or deleted on startup
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private LockState mLocked = LockState.UNDEFINED;
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// Caches the guest profile dir
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private static File mGuestDir = null;
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private boolean mInGuestMode = false;
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private static GeckoProfile mGuestProfile = null;
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private static final String MOZILLA_DIR_NAME = "mozilla";
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private static File sMozillaDir;
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private static INIParser getProfilesINI(File mozillaDir) {
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File profilesIni = new File(mozillaDir, "profiles.ini");
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return new INIParser(profilesIni);
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}
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public static GeckoProfile get(Context context) {
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boolean isGeckoApp = false;
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try {
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isGeckoApp = context instanceof GeckoApp;
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} catch (NoClassDefFoundError ex) {}
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if (isGeckoApp) {
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// Check for a cached profile on this context already
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// TODO: We should not be caching profile information on the Activity context
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if (((GeckoApp)context).mProfile != null) {
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return ((GeckoApp)context).mProfile;
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}
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}
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// If the guest profile exists and is locked, return it
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GeckoProfile guest = GeckoProfile.getGuestProfile(context);
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if (guest != null && guest.locked()) {
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return guest;
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}
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if (isGeckoApp) {
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// Otherwise, get the default profile for the Activity
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return get(context, ((GeckoApp)context).getDefaultProfileName());
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}
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return get(context, "");
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}
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public static GeckoProfile get(Context context, String profileName) {
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synchronized (sProfileCache) {
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GeckoProfile profile = sProfileCache.get(profileName);
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if (profile != null)
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return profile;
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}
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return get(context, profileName, (File)null);
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}
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public static GeckoProfile get(Context context, String profileName, String profilePath) {
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File dir = null;
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if (!TextUtils.isEmpty(profilePath))
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dir = new File(profilePath);
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return get(context, profileName, dir);
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}
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public static GeckoProfile get(Context context, String profileName, File profileDir) {
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if (context == null) {
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throw new IllegalArgumentException("context must be non-null");
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}
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// if no profile was passed in, look for the default profile listed in profiles.ini
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// if that doesn't exist, look for a profile called 'default'
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if (TextUtils.isEmpty(profileName) && profileDir == null) {
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profileName = GeckoProfile.findDefaultProfile(context);
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if (profileName == null)
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profileName = "default";
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}
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// actually try to look up the profile
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synchronized (sProfileCache) {
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GeckoProfile profile = sProfileCache.get(profileName);
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if (profile == null) {
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profile = new GeckoProfile(context, profileName);
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profile.setDir(profileDir);
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sProfileCache.put(profileName, profile);
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} else {
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profile.setDir(profileDir);
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}
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return profile;
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}
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}
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private static File getMozillaDirectory(Context context) {
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return new File(context.getFilesDir(), MOZILLA_DIR_NAME);
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}
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private synchronized File ensureMozillaDirectory() throws IOException {
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if (sMozillaDir.exists() || sMozillaDir.mkdirs()) {
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return sMozillaDir;
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}
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throw new IOException("Unable to create mozilla directory at " + sMozillaDir.getAbsolutePath());
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}
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public static boolean removeProfile(Context context, String profileName) {
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return new GeckoProfile(context, profileName).remove();
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}
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public static GeckoProfile createGuestProfile(Context context) {
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try {
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removeGuestProfile(context);
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// We need to force the creation of a new guest profile if we want it outside of the normal profile path,
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// otherwise GeckoProfile.getDir will try to be smart and build it for us in the normal profiles dir.
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getGuestDir(context).mkdir();
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GeckoProfile profile = getGuestProfile(context);
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profile.lock();
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return profile;
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} catch (Exception ex) {
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Log.e(LOGTAG, "Error creating guest profile", ex);
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}
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return null;
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}
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public static void leaveGuestSession(Context context) {
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GeckoProfile profile = getGuestProfile(context);
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if (profile != null) {
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profile.unlock();
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}
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}
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private static File getGuestDir(Context context) {
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if (mGuestDir == null) {
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mGuestDir = context.getFileStreamPath("guest");
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}
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return mGuestDir;
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}
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private static GeckoProfile getGuestProfile(Context context) {
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if (mGuestProfile == null) {
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File guestDir = getGuestDir(context);
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if (guestDir.exists()) {
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mGuestProfile = get(context, "guest", guestDir);
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mGuestProfile.mInGuestMode = true;
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}
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}
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return mGuestProfile;
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}
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public static boolean maybeCleanupGuestProfile(final Context context) {
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final GeckoProfile profile = getGuestProfile(context);
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if (profile == null) {
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return false;
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} else if (!profile.locked()) {
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profile.mInGuestMode = false;
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// If the guest dir exists, but it's unlocked, delete it
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removeGuestProfile(context);
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return true;
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}
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return false;
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}
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private static void removeGuestProfile(Context context) {
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try {
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File guestDir = getGuestDir(context);
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if (guestDir.exists()) {
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delete(guestDir);
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}
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} catch (Exception ex) {
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Log.e(LOGTAG, "Error removing guest profile", ex);
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}
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}
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public static boolean delete(File file) throws IOException {
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// Try to do a quick initial delete
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if (file.delete())
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return true;
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if (file.isDirectory()) {
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// If the quick delete failed and this is a dir, recursively delete the contents of the dir
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String files[] = file.list();
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for (String temp : files) {
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File fileDelete = new File(file, temp);
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delete(fileDelete);
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}
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}
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// Even if this is a dir, it should now be empty and delete should work
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return file.delete();
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}
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// Warning, Changing the lock file state from outside apis will cause this to become out of sync
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public boolean locked() {
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if (mLocked != LockState.UNDEFINED) {
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return mLocked == LockState.LOCKED;
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}
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// Don't use getDir() as it will create a dir if none exists
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if (mProfileDir != null && mProfileDir.exists()) {
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File lockFile = new File(mProfileDir, LOCK_FILE_NAME);
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boolean res = lockFile.exists();
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mLocked = res ? LockState.LOCKED : LockState.UNLOCKED;
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} else {
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mLocked = LockState.UNLOCKED;
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}
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return mLocked == LockState.LOCKED;
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}
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public boolean lock() {
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try {
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// If this dir doesn't exist getDir will create it for us
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File lockFile = new File(getDir(), LOCK_FILE_NAME);
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boolean result = lockFile.createNewFile();
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if (result) {
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mLocked = LockState.LOCKED;
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} else {
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mLocked = LockState.UNLOCKED;
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}
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return result;
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} catch(IOException ex) {
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Log.e(LOGTAG, "Error locking profile", ex);
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}
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mLocked = LockState.UNLOCKED;
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return false;
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}
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public boolean unlock() {
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// Don't use getDir() as it will create a dir
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if (mProfileDir == null || !mProfileDir.exists()) {
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return true;
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}
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try {
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File lockFile = new File(mProfileDir, LOCK_FILE_NAME);
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boolean result = delete(lockFile);
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if (result) {
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mLocked = LockState.UNLOCKED;
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} else {
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mLocked = LockState.LOCKED;
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}
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return result;
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} catch(IOException ex) {
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Log.e(LOGTAG, "Error unlocking profile", ex);
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}
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mLocked = LockState.LOCKED;
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return false;
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}
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private GeckoProfile(Context context, String profileName) {
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mName = profileName;
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if (sMozillaDir == null) {
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sMozillaDir = getMozillaDirectory(context);
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}
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}
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public boolean inGuestMode() {
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return mInGuestMode;
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}
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private void setDir(File dir) {
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if (dir != null && dir.exists() && dir.isDirectory()) {
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mProfileDir = dir;
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} else {
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Log.w(LOGTAG, "requested profile directory missing: " + dir);
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}
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}
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public String getName() {
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return mName;
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}
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public synchronized File getDir() {
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forceCreate();
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return mProfileDir;
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}
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public synchronized GeckoProfile forceCreate() {
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if (mProfileDir != null) {
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return this;
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}
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try {
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// Check if a profile with this name already exists.
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File mozillaDir = ensureMozillaDirectory();
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mProfileDir = findProfileDir(mozillaDir);
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if (mProfileDir == null) {
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// otherwise create it
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mProfileDir = createProfileDir(mozillaDir);
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} else {
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Log.d(LOGTAG, "Found profile dir: " + mProfileDir.getAbsolutePath());
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}
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} catch (IOException ioe) {
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Log.e(LOGTAG, "Error getting profile dir", ioe);
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}
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return this;
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}
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public File getFile(String aFile) {
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File f = getDir();
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if (f == null)
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return null;
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return new File(f, aFile);
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}
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/**
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* Moves the session file to the backup session file.
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*
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* sessionstore.js should hold the current session, and sessionstore.bak
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* should hold the previous session (where it is used to read the "tabs
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* from last time"). Normally, sessionstore.js is moved to sessionstore.bak
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* on a clean quit, but this doesn't happen if Fennec crashed. Thus, this
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* method should be called after a crash so sessionstore.bak correctly
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* holds the previous session.
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*/
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public void moveSessionFile() {
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File sessionFile = getFile("sessionstore.js");
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if (sessionFile != null && sessionFile.exists()) {
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File sessionFileBackup = getFile("sessionstore.bak");
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sessionFile.renameTo(sessionFileBackup);
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}
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}
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/**
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* Get the string from a session file.
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*
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* The session can either be read from sessionstore.js or sessionstore.bak.
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* In general, sessionstore.js holds the current session, and
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* sessionstore.bak holds the previous session.
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*
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* @param readBackup if true, the session is read from sessionstore.bak;
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* otherwise, the session is read from sessionstore.js
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*
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* @return the session string
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*/
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public String readSessionFile(boolean readBackup) {
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File sessionFile = getFile(readBackup ? "sessionstore.bak" : "sessionstore.js");
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try {
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if (sessionFile != null && sessionFile.exists()) {
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return readFile(sessionFile);
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}
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} catch (IOException ioe) {
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Log.e(LOGTAG, "Unable to read session file", ioe);
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}
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return null;
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}
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public String readFile(String filename) throws IOException {
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File dir = getDir();
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if (dir == null) {
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throw new IOException("No profile directory found");
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}
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File target = new File(dir, filename);
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return readFile(target);
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}
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private String readFile(File target) throws IOException {
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FileReader fr = new FileReader(target);
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try {
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StringBuilder sb = new StringBuilder();
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char[] buf = new char[8192];
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int read = fr.read(buf);
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while (read >= 0) {
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sb.append(buf, 0, read);
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read = fr.read(buf);
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}
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return sb.toString();
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} finally {
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fr.close();
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}
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}
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private boolean remove() {
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try {
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File dir = getDir();
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if (dir.exists())
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delete(dir);
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File mozillaDir = ensureMozillaDirectory();
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mProfileDir = findProfileDir(mozillaDir);
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if (mProfileDir == null) {
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return false;
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}
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INIParser parser = getProfilesINI(mozillaDir);
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Hashtable<String, INISection> sections = parser.getSections();
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for (Enumeration<INISection> e = sections.elements(); e.hasMoreElements();) {
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INISection section = e.nextElement();
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String name = section.getStringProperty("Name");
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if (name == null || !name.equals(mName))
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continue;
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if (section.getName().startsWith("Profile")) {
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// ok, we have stupid Profile#-named things. Rename backwards.
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try {
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int sectionNumber = Integer.parseInt(section.getName().substring("Profile".length()));
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String curSection = "Profile" + sectionNumber;
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String nextSection = "Profile" + (sectionNumber+1);
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sections.remove(curSection);
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while (sections.containsKey(nextSection)) {
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parser.renameSection(nextSection, curSection);
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sectionNumber++;
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curSection = nextSection;
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nextSection = "Profile" + (sectionNumber+1);
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}
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} catch (NumberFormatException nex) {
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// uhm, malformed Profile thing; we can't do much.
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Log.e(LOGTAG, "Malformed section name in profiles.ini: " + section.getName());
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return false;
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}
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} else {
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// this really shouldn't be the case, but handle it anyway
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parser.removeSection(mName);
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return true;
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}
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}
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parser.write();
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return true;
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} catch (IOException ex) {
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Log.w(LOGTAG, "Failed to remove profile " + mName + ":\n" + ex);
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return false;
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}
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}
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public static String findDefaultProfile(Context context) {
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// Have we read the default profile from the INI already?
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// Changing the default profile requires a restart, so we don't
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// need to worry about runtime changes.
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if (sDefaultProfileName != null) {
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return sDefaultProfileName;
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}
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// Open profiles.ini to find the correct path
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INIParser parser = getProfilesINI(getMozillaDirectory(context));
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for (Enumeration<INISection> e = parser.getSections().elements(); e.hasMoreElements();) {
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INISection section = e.nextElement();
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if (section.getIntProperty("Default") == 1) {
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sDefaultProfileName = section.getStringProperty("Name");
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return sDefaultProfileName;
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}
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}
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return null;
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}
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private File findProfileDir(File mozillaDir) {
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// Open profiles.ini to find the correct path
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INIParser parser = getProfilesINI(mozillaDir);
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for (Enumeration<INISection> e = parser.getSections().elements(); e.hasMoreElements();) {
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INISection section = e.nextElement();
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String name = section.getStringProperty("Name");
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if (name != null && name.equals(mName)) {
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if (section.getIntProperty("IsRelative") == 1) {
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return new File(mozillaDir, section.getStringProperty("Path"));
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}
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return new File(section.getStringProperty("Path"));
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}
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}
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return null;
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}
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private static String saltProfileName(String name) {
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String allowedChars = "abcdefghijklmnopqrstuvwxyz0123456789";
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StringBuilder salt = new StringBuilder(16);
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for (int i = 0; i < 8; i++) {
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salt.append(allowedChars.charAt((int)(Math.random() * allowedChars.length())));
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}
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salt.append('.');
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salt.append(name);
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return salt.toString();
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}
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private File createProfileDir(File mozillaDir) throws IOException {
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INIParser parser = getProfilesINI(mozillaDir);
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// Salt the name of our requested profile
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String saltedName = saltProfileName(mName);
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File profileDir = new File(mozillaDir, saltedName);
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while (profileDir.exists()) {
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saltedName = saltProfileName(mName);
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profileDir = new File(mozillaDir, saltedName);
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}
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// Attempt to create the salted profile dir
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if (! profileDir.mkdirs()) {
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throw new IOException("Unable to create profile at " + profileDir.getAbsolutePath());
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}
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Log.d(LOGTAG, "Created new profile dir at " + profileDir.getAbsolutePath());
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// Now update profiles.ini
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// If this is the first time its created, we also add a General section
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// look for the first profile number that isn't taken yet
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int profileNum = 0;
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while (parser.getSection("Profile" + profileNum) != null) {
|
|
profileNum++;
|
|
}
|
|
|
|
INISection profileSection = new INISection("Profile" + profileNum);
|
|
profileSection.setProperty("Name", mName);
|
|
profileSection.setProperty("IsRelative", 1);
|
|
profileSection.setProperty("Path", saltedName);
|
|
|
|
if (parser.getSection("General") == null) {
|
|
INISection generalSection = new INISection("General");
|
|
generalSection.setProperty("StartWithLastProfile", 1);
|
|
parser.addSection(generalSection);
|
|
|
|
// only set as default if this is the first profile we're creating
|
|
profileSection.setProperty("Default", 1);
|
|
}
|
|
|
|
parser.addSection(profileSection);
|
|
parser.write();
|
|
|
|
// Write out profile creation time, mirroring the logic in nsToolkitProfileService.
|
|
try {
|
|
FileOutputStream stream = new FileOutputStream(profileDir.getAbsolutePath() + File.separator + "times.json");
|
|
OutputStreamWriter writer = new OutputStreamWriter(stream, Charset.forName("UTF-8"));
|
|
try {
|
|
writer.append("{\"created\": " + System.currentTimeMillis() + "}\n");
|
|
} finally {
|
|
writer.close();
|
|
}
|
|
} catch (Exception e) {
|
|
// Best-effort.
|
|
Log.w(LOGTAG, "Couldn't write times.json.", e);
|
|
}
|
|
|
|
return profileDir;
|
|
}
|
|
}
|