mirror of
https://github.com/mozilla/gecko-dev.git
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602 lines
21 KiB
Java
602 lines
21 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.GeckoProfileDirectories.NoMozillaDirectoryException;
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import org.mozilla.gecko.GeckoProfileDirectories.NoSuchProfileException;
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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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public static final String DEFAULT_PROFILE = "default";
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private static final String GUEST_PROFILE = "guest";
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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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public static boolean sIsUsingCustomProfile = false;
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private final String mName;
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private final File mMozillaDir;
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private File mProfileDir; // Not final because this is lazily computed.
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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 sGuestDir = null;
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private static GeckoProfile sGuestProfile = null;
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private boolean mInGuestMode = false;
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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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final GeckoApp geckoApp = (GeckoApp) context;
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if (geckoApp.mProfile != null) {
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return geckoApp.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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final GeckoApp geckoApp = (GeckoApp) context;
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String defaultProfileName;
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try {
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defaultProfileName = geckoApp.getDefaultProfileName();
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} catch (NoMozillaDirectoryException e) {
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// If this failed, we're screwed. But there are so many callers that
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// we'll just throw a RuntimeException.
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Log.wtf(LOGTAG, "Unable to get default profile name.", e);
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throw new RuntimeException(e);
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}
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// Otherwise, get the default profile for the Activity.
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return get(context, defaultProfileName);
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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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if (!dir.exists() || !dir.isDirectory()) {
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Log.w(LOGTAG, "requested profile directory missing: " + profilePath);
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}
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}
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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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try {
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profileName = GeckoProfile.getDefaultProfileName(context);
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} catch (NoMozillaDirectoryException e) {
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// We're unable to do anything sane here.
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throw new RuntimeException(e);
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}
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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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try {
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profile = new GeckoProfile(context, profileName);
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} catch (NoMozillaDirectoryException e) {
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// We're unable to do anything sane here.
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throw new RuntimeException(e);
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}
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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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public static boolean removeProfile(Context context, String profileName) {
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final boolean success;
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try {
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success = new GeckoProfile(context, profileName).remove();
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} catch (NoMozillaDirectoryException e) {
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Log.w(LOGTAG, "Unable to remove profile: no Mozilla directory.", e);
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return true;
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}
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if (success) {
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// Clear all shared prefs for the given profile.
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GeckoSharedPrefs.forProfileName(context, profileName)
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.edit().clear().commit();
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}
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return success;
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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 (sGuestDir == null) {
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sGuestDir = context.getFileStreamPath("guest");
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}
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return sGuestDir;
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}
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private static GeckoProfile getGuestProfile(Context context) {
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if (sGuestProfile == null) {
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File guestDir = getGuestDir(context);
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if (guestDir.exists()) {
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sGuestProfile = get(context, GUEST_PROFILE, guestDir);
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sGuestProfile.mInGuestMode = true;
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}
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}
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return sGuestProfile;
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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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boolean success = false;
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try {
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File guestDir = getGuestDir(context);
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if (guestDir.exists()) {
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success = 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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if (success) {
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// Clear all shared prefs for the guest profile.
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GeckoSharedPrefs.forProfileName(context, GUEST_PROFILE)
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.edit().clear().commit();
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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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private GeckoProfile(Context context, String profileName) throws NoMozillaDirectoryException {
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mName = profileName;
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mMozillaDir = GeckoProfileDirectories.getMozillaDirectory(context);
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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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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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}
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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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try {
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mProfileDir = findProfileDir();
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Log.d(LOGTAG, "Found profile dir.");
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} catch (NoSuchProfileException noSuchProfile) {
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// If it doesn't exist, create it.
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mProfileDir = createProfileDir();
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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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final File dir = getDir();
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if (dir.exists()) {
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delete(dir);
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}
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try {
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mProfileDir = findProfileDir();
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} catch (NoSuchProfileException noSuchProfile) {
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// If the profile doesn't exist, there's nothing left for us to do.
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return false;
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}
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final INIParser parser = GeckoProfileDirectories.getProfilesINI(mMozillaDir);
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final Hashtable<String, INISection> sections = parser.getSections();
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for (Enumeration<INISection> e = sections.elements(); e.hasMoreElements();) {
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final 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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}
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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.", ex);
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return false;
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}
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}
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/**
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* @return the default profile name for this application, or
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* {@link GeckoProfile#DEFAULT_PROFILE} if none could be found.
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*
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* @throws NoMozillaDirectoryException
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* if the Mozilla directory did not exist and could not be
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* created.
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*/
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public static String getDefaultProfileName(final Context context) throws NoMozillaDirectoryException {
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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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final String profileName = GeckoProfileDirectories.findDefaultProfileName(context);
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if (profileName == null) {
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// Note that we don't persist this back to profiles.ini.
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sDefaultProfileName = DEFAULT_PROFILE;
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return DEFAULT_PROFILE;
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}
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sDefaultProfileName = profileName;
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return sDefaultProfileName;
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}
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private File findProfileDir() throws NoSuchProfileException {
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return GeckoProfileDirectories.findProfileDir(mMozillaDir, mName);
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}
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private File createProfileDir() throws IOException {
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INIParser parser = GeckoProfileDirectories.getProfilesINI(mMozillaDir);
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// Salt the name of our requested profile
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String saltedName = GeckoProfileDirectories.saltProfileName(mName);
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File profileDir = new File(mMozillaDir, saltedName);
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while (profileDir.exists()) {
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saltedName = GeckoProfileDirectories.saltProfileName(mName);
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profileDir = new File(mMozillaDir, 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.");
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}
|
|
Log.d(LOGTAG, "Created new profile dir.");
|
|
|
|
// Now update profiles.ini
|
|
// If this is the first time its created, we also add a General section
|
|
// look for the first profile number that isn't taken yet
|
|
int profileNum = 0;
|
|
boolean isDefaultSet = false;
|
|
INISection profileSection;
|
|
while ((profileSection = parser.getSection("Profile" + profileNum)) != null) {
|
|
profileNum++;
|
|
if (profileSection.getProperty("Default") != null) {
|
|
isDefaultSet = true;
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
if (!isDefaultSet && !mName.startsWith("webapp")) {
|
|
// only set as default if this is the first non-webapp
|
|
// 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;
|
|
}
|
|
}
|