1 files changed, 203 insertions, 0 deletions
diff --git a/core/java/android/webkit/PluginManager.java b/core/java/android/webkit/PluginManager.java
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+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.webkit;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import android.annotation.SdkConstant;
+import android.annotation.SdkConstant.SdkConstantType;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageInfo;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.content.pm.ServiceInfo;
+import android.content.pm.Signature;
+import android.content.pm.PackageManager.NameNotFoundException;
+import android.os.SystemProperties;
+import android.util.Log;
+
+/**
+ * Class for managing the relationship between the {@link WebView} and installed
+ * plugins in the system. You can find this class through
+ * {@link PluginManager#getInstance}.
+ * 
+ * @hide pending API solidification
+ */
+public class PluginManager {
+
+    /**
+     * Service Action: A plugin wishes to be loaded in the WebView must provide
+     * {@link android.content.IntentFilter IntentFilter} that accepts this
+     * action in their AndroidManifest.xml.
+     * <p>
+     * TODO: we may change this to a new PLUGIN_ACTION if this is going to be
+     * public.
+     */
+    @SdkConstant(SdkConstantType.SERVICE_ACTION)
+    public static final String PLUGIN_ACTION = "android.webkit.PLUGIN";
+
+    /**
+     * A plugin wishes to be loaded in the WebView must provide this permission
+     * in their AndroidManifest.xml.
+     */
+    public static final String PLUGIN_PERMISSION = "android.webkit.permission.PLUGIN";
+
+    private static final String LOGTAG = "webkit";
+
+    private static PluginManager mInstance = null;
+
+    private final Context mContext;
+
+    private ArrayList<PackageInfo> mPackageInfoCache;
+
+    // Only plugin matches one of the signatures in the list can be loaded
+    // inside the WebView process
+    private static final String SIGNATURE_1 = "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";
+
+    private static final Signature[] SIGNATURES = new Signature[] {
+        new Signature(SIGNATURE_1)
+    };
+
+    private PluginManager(Context context) {
+        mContext = context;
+        mPackageInfoCache = new ArrayList<PackageInfo>();
+    }
+
+    public static synchronized PluginManager getInstance(Context context) {
+        if (mInstance == null) {
+            if (context == null) {
+                throw new IllegalStateException(
+                        "First call to PluginManager need a valid context.");
+            }
+            mInstance = new PluginManager(context);
+        }
+        return mInstance;
+    }
+
+    /**
+     * Signal the WebCore thread to refresh its list of plugins. Use this if the
+     * directory contents of one of the plugin directories has been modified and
+     * needs its changes reflecting. May cause plugin load and/or unload.
+     * 
+     * @param reloadOpenPages Set to true to reload all open pages.
+     */
+    public void refreshPlugins(boolean reloadOpenPages) {
+        BrowserFrame.sJavaBridge.obtainMessage(
+                JWebCoreJavaBridge.REFRESH_PLUGINS, reloadOpenPages)
+                .sendToTarget();
+    }
+
+    String[] getPluginDirectories() {
+
+        ArrayList<String> directories = new ArrayList<String>();
+        PackageManager pm = mContext.getPackageManager();
+        List<ResolveInfo> plugins = pm.queryIntentServices(new Intent(
+                PLUGIN_ACTION), PackageManager.GET_SERVICES);
+
+        synchronized(mPackageInfoCache) {
+
+            // clear the list of existing packageInfo objects
+            mPackageInfoCache.clear();
+
+            for (ResolveInfo info : plugins) {
+                ServiceInfo serviceInfo = info.serviceInfo;
+                if (serviceInfo == null) {
+                    Log.w(LOGTAG, "Ignore bad plugin");
+                    continue;
+                }
+                PackageInfo pkgInfo;
+                try {
+                    pkgInfo = pm.getPackageInfo(serviceInfo.packageName,
+                                    PackageManager.GET_PERMISSIONS
+                                    | PackageManager.GET_SIGNATURES);
+                } catch (NameNotFoundException e) {
+                    Log.w(LOGTAG, "Cant find plugin: " + serviceInfo.packageName);
+                    continue;
+                }
+                if (pkgInfo == null) {
+                    continue;
+                }
+                String directory = pkgInfo.applicationInfo.dataDir + "/lib";
+                if (directories.contains(directory)) {
+                    continue;
+                }
+                String permissions[] = pkgInfo.requestedPermissions;
+                if (permissions == null) {
+                    continue;
+                }
+                boolean permissionOk = false;
+                for (String permit : permissions) {
+                    if (PLUGIN_PERMISSION.equals(permit)) {
+                        permissionOk = true;
+                        break;
+                    }
+                }
+                if (!permissionOk) {
+                    continue;
+                }
+                Signature signatures[] = pkgInfo.signatures;
+                if (signatures == null) {
+                    continue;
+                }
+                if (SystemProperties.getBoolean("ro.secure", false)) {
+                    boolean signatureMatch = false;
+                    for (Signature signature : signatures) {
+                        for (int i = 0; i < SIGNATURES.length; i++) {
+                            if (SIGNATURES[i].equals(signature)) {
+                                signatureMatch = true;
+                                break;
+                            }
+                        }
+                    }
+                    if (!signatureMatch) {
+                        continue;
+                    }
+                }
+                mPackageInfoCache.add(pkgInfo);
+                directories.add(directory);
+            }
+        }
+
+        return directories.toArray(new String[directories.size()]);
+    }
+
+    String getPluginsAPKName(String pluginLib) {
+
+        // basic error checking on input params
+        if (pluginLib == null || pluginLib.length() == 0) {
+            return null;
+        }
+
+        // must be synchronized to ensure the consistency of the cache
+        synchronized(mPackageInfoCache) {
+            for (PackageInfo pkgInfo : mPackageInfoCache) {
+                if (pluginLib.startsWith(pkgInfo.applicationInfo.dataDir)) {
+                    return pkgInfo.packageName;
+                }
+            }
+        }
+
+        // if no apk was found then return null
+        return null;
+    }
+
+    String getPluginSharedDataDirectory() {
+        return mContext.getDir("plugins", 0).getPath();
+    }
+}