Add option to clear Web Storage

app/src/main/java/acr/browser/lightning/activity/BrowserActivity.java

@@ -70,15 +70,11 @@ import android.view.animation.DecelerateInterpolator;
 import android.view.animation.Transformation;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputMethodManager;
-import android.webkit.CookieManager;
-import android.webkit.CookieSyncManager;
 import android.webkit.ValueCallback;
 import android.webkit.WebChromeClient.CustomViewCallback;
 import android.webkit.WebIconDatabase;
-import android.webkit.WebStorage;
 import android.webkit.WebView;
 import android.webkit.WebView.HitTestResult;
-import android.webkit.WebViewDatabase;
 import android.widget.AdapterView;
 import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ArrayAdapter;
@@ -126,6 +122,7 @@ import acr.browser.lightning.receiver.NetworkReceiver;
 import acr.browser.lightning.utils.ProxyUtils;
 import acr.browser.lightning.utils.ThemeUtils;
 import acr.browser.lightning.utils.Utils;
+import acr.browser.lightning.utils.WebUtils;
 import acr.browser.lightning.view.AnimatedProgressBar;
 import acr.browser.lightning.view.LightningView;
 
@@ -1291,21 +1288,7 @@ public abstract class BrowserActivity extends ThemableActivity implements Browse
                 closeActivity();
             } else {
                 mWebViewList.remove(position);
-                if (mPreferences.getClearCacheExit() && mCurrentView != null && !isIncognito()) {
-                    mCurrentView.clearCache(true);
-                    Log.d(Constants.TAG, "Cache Cleared");
-
-                }
-                if (mPreferences.getClearHistoryExitEnabled() && !isIncognito()) {
-                    clearHistory();
-                    Log.d(Constants.TAG, "History Cleared");
-
-                }
-                if (mPreferences.getClearCookiesExitEnabled() && !isIncognito()) {
-                    clearCookies();
-                    Log.d(Constants.TAG, "Cookies Cleared");
-
-                }
+                performExitCleanUp();
                 reference.pauseTimers();
                 reference.onDestroy();
                 mCurrentView = null;
@@ -1325,31 +1308,41 @@ public abstract class BrowserActivity extends ThemableActivity implements Browse
         Log.d(Constants.TAG, "deleted tab");
     }
 
-    @Override
-    public boolean onKeyLongPress(int keyCode, KeyEvent event) {
-        if (keyCode == KeyEvent.KEYCODE_BACK) {
-            showCloseDialog(mDrawerListLeft.getCheckedItemPosition());
-        }
-        return true;
-    }
-
-    private void closeBrowser() {
-        mBrowserFrame.setBackgroundColor(mBackgroundColor);
+    public void performExitCleanUp() {
         if (mPreferences.getClearCacheExit() && mCurrentView != null && !isIncognito()) {
-            mCurrentView.clearCache(true);
+            WebUtils.clearCache(mCurrentView.getWebView());
             Log.d(Constants.TAG, "Cache Cleared");
 
         }
         if (mPreferences.getClearHistoryExitEnabled() && !isIncognito()) {
-            clearHistory();
+            WebUtils.clearHistory(this, mSystemBrowser);
             Log.d(Constants.TAG, "History Cleared");
 
         }
         if (mPreferences.getClearCookiesExitEnabled() && !isIncognito()) {
-            clearCookies();
+            WebUtils.clearCookies(this);
             Log.d(Constants.TAG, "Cookies Cleared");
 
         }
+        if (mPreferences.getClearWebStorageExitEnabled() && !isIncognito()) {
+            WebUtils.clearWebStorage();
+            Log.d(Constants.TAG, "WebStorage Cleared");
+        } else if (isIncognito()) {
+            WebUtils.clearWebStorage();     // We want to make sure incognito mode is secure
+        }
+    }
+
+    @Override
+    public boolean onKeyLongPress(int keyCode, KeyEvent event) {
+        if (keyCode == KeyEvent.KEYCODE_BACK) {
+            showCloseDialog(mDrawerListLeft.getCheckedItemPosition());
+        }
+        return true;
+    }
+
+    private void closeBrowser() {
+        mBrowserFrame.setBackgroundColor(mBackgroundColor);
+        performExitCleanUp();
         mCurrentView = null;
         mWebView = null;
         for (int n = 0; n < mWebViewList.size(); n++) {
@@ -1362,38 +1355,6 @@ public abstract class BrowserActivity extends ThemableActivity implements Browse
         finish();
     }
 
-    private void clearHistory() {
-        this.deleteDatabase(HistoryDatabase.DATABASE_NAME);
-        WebViewDatabase m = WebViewDatabase.getInstance(this);
-        m.clearFormData();
-        m.clearHttpAuthUsernamePassword();
-        if (API < 18) {
-            m.clearUsernamePassword();
-            WebIconDatabase.getInstance().removeAllIcons();
-        }
-        if (mSystemBrowser) {
-            try {
-                Browser.clearHistory(getContentResolver());
-            } catch (NullPointerException ignored) {
-            }
-        }
-        Utils.trimCache(this);
-    }
-
-    private void clearCookies() {
-        // TODO Break out web storage deletion into its own option/action
-        // TODO clear web storage for all sites that are visited in Incognito mode
-        WebStorage storage = WebStorage.getInstance();
-        storage.deleteAllData();
-        CookieManager c = CookieManager.getInstance();
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            c.removeAllCookies(null);
-        } else {
-            CookieSyncManager.createInstance(this);
-            c.removeAllCookie();
-        }
-    }
-
     @Override
     public void onBackPressed() {
         if (mDrawerLayout.isDrawerOpen(mDrawerLeft)) {

app/src/main/java/acr/browser/lightning/fragment/PrivacySettingsFragment.java

@@ -12,19 +12,13 @@ import android.os.Message;
 import android.preference.CheckBoxPreference;
 import android.preference.Preference;
 import android.preference.PreferenceFragment;
-import android.provider.Browser;
 import android.support.v7.app.AlertDialog;
-import android.webkit.CookieManager;
-import android.webkit.CookieSyncManager;
-import android.webkit.WebIconDatabase;
-import android.webkit.WebStorage;
 import android.webkit.WebView;
-import android.webkit.WebViewDatabase;
 
 import acr.browser.lightning.R;
-import acr.browser.lightning.database.HistoryDatabase;
 import acr.browser.lightning.preference.PreferenceManager;
 import acr.browser.lightning.utils.Utils;
+import acr.browser.lightning.utils.WebUtils;
 
 public class PrivacySettingsFragment extends PreferenceFragment implements Preference.OnPreferenceClickListener, Preference.OnPreferenceChangeListener {
 
@@ -38,12 +32,14 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
     private static final String SETTINGS_CLEARCACHE = "clear_cache";
     private static final String SETTINGS_CLEARHISTORY = "clear_history";
     private static final String SETTINGS_CLEARCOOKIES = "clear_cookies";
+    private static final String SETTINGS_CLEARWEBSTORAGE = "clear_webstorage";
+    private static final String SETTINGS_WEBSTORAGEEXIT = "clear_webstorage_exit";
 
     private static final int API = android.os.Build.VERSION.SDK_INT;
     private Activity mActivity;
     private PreferenceManager mPreferences;
     private CheckBoxPreference cblocation, cb3cookies, cbsavepasswords, cbcacheexit, cbhistoryexit,
-            cbcookiesexit, cbsynchistory;
+            cbcookiesexit, cbsynchistory, cbwebstorageexit;
     private boolean mSystemBrowser;
     private Handler messageHandler;
 
@@ -66,6 +62,8 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
         Preference clearcache = findPreference(SETTINGS_CLEARCACHE);
         Preference clearhistory = findPreference(SETTINGS_CLEARHISTORY);
         Preference clearcookies = findPreference(SETTINGS_CLEARCOOKIES);
+        Preference clearwebstorage = findPreference(SETTINGS_CLEARWEBSTORAGE);
+
         cblocation = (CheckBoxPreference) findPreference(SETTINGS_LOCATION);
         cb3cookies = (CheckBoxPreference) findPreference(SETTINGS_THIRDPCOOKIES);
         cbsavepasswords = (CheckBoxPreference) findPreference(SETTINGS_SAVEPASSWORD);
@@ -73,10 +71,13 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
         cbhistoryexit = (CheckBoxPreference) findPreference(SETTINGS_HISTORYEXIT);
         cbcookiesexit = (CheckBoxPreference) findPreference(SETTINGS_COOKIEEXIT);
         cbsynchistory = (CheckBoxPreference) findPreference(SETTINGS_SYNCHISTORY);
+        cbwebstorageexit = (CheckBoxPreference) findPreference(SETTINGS_WEBSTORAGEEXIT);
 
         clearcache.setOnPreferenceClickListener(this);
         clearhistory.setOnPreferenceClickListener(this);
         clearcookies.setOnPreferenceClickListener(this);
+        clearwebstorage.setOnPreferenceClickListener(this);
+
         cblocation.setOnPreferenceChangeListener(this);
         cb3cookies.setOnPreferenceChangeListener(this);
         cbsavepasswords.setOnPreferenceChangeListener(this);
@@ -84,6 +85,7 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
         cbhistoryexit.setOnPreferenceChangeListener(this);
         cbcookiesexit.setOnPreferenceChangeListener(this);
         cbsynchistory.setOnPreferenceChangeListener(this);
+        cbwebstorageexit.setOnPreferenceChangeListener(this);
 
         cblocation.setChecked(mPreferences.getLocationEnabled());
         cbsavepasswords.setChecked(mPreferences.getSavePasswordsEnabled());
@@ -91,6 +93,7 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
         cbhistoryexit.setChecked(mPreferences.getClearHistoryExitEnabled());
         cbcookiesexit.setChecked(mPreferences.getClearCookiesExitEnabled());
         cb3cookies.setChecked(mPreferences.getBlockThirdPartyCookiesEnabled());
+        cbwebstorageexit.setChecked(mPreferences.getClearWebStorageExitEnabled());
 
         cb3cookies.setEnabled(Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP);
 
@@ -141,6 +144,9 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
             case SETTINGS_CLEARCOOKIES:
                 clearCookiesDialog();
                 return true;
+            case SETTINGS_CLEARWEBSTORAGE:
+                clearWebStorage();
+                return true;
             default:
                 return false;
         }
@@ -203,43 +209,21 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
         Utils.showSnackbar(mActivity, R.string.message_cache_cleared);
     }
 
-    @SuppressWarnings("deprecation")
     private void clearHistory() {
-        mActivity.deleteDatabase(HistoryDatabase.DATABASE_NAME);
-        WebViewDatabase m = WebViewDatabase.getInstance(mActivity);
-        m.clearFormData();
-        m.clearHttpAuthUsernamePassword();
-        if (API < 18) {
-            m.clearUsernamePassword();
-            WebIconDatabase.getInstance().removeAllIcons();
-        }
-        if (mSystemBrowser) {
-            try {
-                Browser.clearHistory(mActivity.getContentResolver());
-            } catch (Exception ignored) {
-            }
-        }
-        Utils.trimCache(mActivity);
+        WebUtils.clearHistory(getActivity(), mSystemBrowser);
         messageHandler.sendEmptyMessage(1);
     }
 
-    @SuppressWarnings("deprecation")
     private void clearCookies() {
-        // TODO Break out web storage deletion into its own option/action
-        // TODO clear web storage for all sites that are visited in Incognito mode
-        WebStorage storage = WebStorage.getInstance();
-        storage.deleteAllData();
-        CookieManager c = CookieManager.getInstance();
-
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
-            c.removeAllCookies(null);
-        } else {
-            CookieSyncManager.createInstance(mActivity);
-            c.removeAllCookie();
-        }
+        WebUtils.clearCookies(getActivity());
         messageHandler.sendEmptyMessage(2);
     }
 
+    private void clearWebStorage() {
+        WebUtils.clearWebStorage();
+        Utils.showSnackbar(getActivity(), R.string.message_web_storage_cleared);
+    }
+
     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
         // switch preferences
@@ -268,6 +252,10 @@ public class PrivacySettingsFragment extends PreferenceFragment implements Prefe
                 mPreferences.setClearCookiesExitEnabled((Boolean) newValue);
                 cbcookiesexit.setChecked((Boolean) newValue);
                 return true;
+            case SETTINGS_WEBSTORAGEEXIT:
+                mPreferences.setClearWebStorageExitEnabled((Boolean) newValue);
+                cbwebstorageexit.setChecked((Boolean) newValue);
+                return true;
             case SETTINGS_SYNCHISTORY:
                 mPreferences.setSyncHistoryEnabled((Boolean) newValue);
                 cbsynchistory.setChecked((Boolean) newValue);

app/src/main/java/acr/browser/lightning/preference/PreferenceManager.java

@@ -48,6 +48,7 @@ public class PreferenceManager {
         public static final String THEME = "Theme";
         public static final String DEFAULT_BOOKMARKS = "defaultBookmarks";
         public static final String TEXT_ENCODING = "textEncoding";
+        public static final String CLEAR_WEBSTORAGE_EXIT = "clearWebStorageExit";
 
         public static final String USE_PROXY = "useProxy";
         public static final String PROXY_CHOICE = "proxyChoice";
@@ -101,6 +102,10 @@ public class PreferenceManager {
         return mPrefs.getBoolean(Name.CLEAR_COOKIES_EXIT, false);
     }
 
+    public boolean getClearWebStorageExitEnabled() {
+        return mPrefs.getBoolean(Name.CLEAR_WEBSTORAGE_EXIT, false);
+    }
+
     public boolean getClearHistoryExitEnabled() {
         return mPrefs.getBoolean(Name.CLEAR_HISTORY_EXIT, false);
     }
@@ -297,6 +302,10 @@ public class PreferenceManager {
         putBoolean(Name.CLEAR_COOKIES_EXIT, enable);
     }
 
+    public void setClearWebStorageExitEnabled(boolean enable) {
+        putBoolean(Name.CLEAR_WEBSTORAGE_EXIT, enable);
+    }
+
     public void setClearHistoryExitEnabled(boolean enable) {
         putBoolean(Name.CLEAR_HISTORY_EXIT, enable);
     }

app/src/main/java/acr/browser/lightning/utils/WebUtils.java

@@ -0,0 +1,59 @@
+package acr.browser.lightning.utils;
+
+import android.content.Context;
+import android.os.Build;
+import android.provider.Browser;
+import android.support.annotation.NonNull;
+import android.webkit.CookieManager;
+import android.webkit.CookieSyncManager;
+import android.webkit.WebIconDatabase;
+import android.webkit.WebStorage;
+import android.webkit.WebView;
+import android.webkit.WebViewDatabase;
+
+import acr.browser.lightning.database.HistoryDatabase;
+
+/**
+ * Copyright 8/4/2015 Anthony Restaino
+ */
+public class WebUtils {
+
+    public static void clearCookies(@NonNull Context context) {
+        CookieManager c = CookieManager.getInstance();
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            c.removeAllCookies(null);
+        } else {
+            CookieSyncManager.createInstance(context);
+            c.removeAllCookie();
+        }
+    }
+
+    public static void clearWebStorage() {
+        WebStorage.getInstance().deleteAllData();
+    }
+
+    public static void clearHistory(@NonNull Context context, boolean systemBrowserPresent) {
+        context.deleteDatabase(HistoryDatabase.DATABASE_NAME);
+        WebViewDatabase m = WebViewDatabase.getInstance(context);
+        m.clearFormData();
+        m.clearHttpAuthUsernamePassword();
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR2) {
+            m.clearUsernamePassword();
+            WebIconDatabase.getInstance().removeAllIcons();
+        }
+        if (systemBrowserPresent) {
+            try {
+                Browser.clearHistory(context.getContentResolver());
+            } catch (NullPointerException ignored) {
+                // ignored
+            }
+        }
+        Utils.trimCache(context);
+    }
+
+    public static void clearCache(WebView view) {
+        if (view == null) return;
+        view.clearCache(true);
+    }
+
+}

app/src/main/res/values/strings.xml

@@ -210,4 +210,7 @@
     <string name="action_rename">Rename</string>
     <string name="title_rename_folder">Rename Folder</string>
     <string name="dialog_folder">What would you like to do with this folder?</string>
+    <string name="clear_web_storage">Clear Web Storage</string>
+    <string name="clear_web_storage_exit">Clear web storage on exit</string>
+    <string name="message_web_storage_cleared">Web Storage Cleared</string>
 </resources>

app/src/main/res/xml/preference_privacy.xml

@@ -13,8 +13,8 @@
         <CheckBoxPreference
             android:defaultValue="true"
             android:key="password"
-            android:title="@string/password"
-            android:summary="@string/recommended" />
+            android:summary="@string/recommended"
+            android:title="@string/password" />
         <CheckBoxPreference
             android:defaultValue="false"
             android:key="clear_cache_exit"
@@ -27,6 +27,10 @@
             android:defaultValue="false"
             android:key="clear_cookies_exit"
             android:title="@string/clear_cookies_exit" />
+        <CheckBoxPreference
+            android:defaultValue="false"
+            android:key="clear_webstorage_exit"
+            android:title="@string/clear_web_storage_exit" />
         <CheckBoxPreference
             android:defaultValue="false"
             android:key="sync_history"
@@ -40,5 +44,8 @@
         <Preference
             android:key="clear_cookies"
             android:title="@string/clear_cookies" />
+        <Preference
+            android:key="clear_webstorage"
+            android:title="@string/clear_web_storage" />
     </PreferenceCategory>
 </PreferenceScreen>