| /* |
| * Copyright (C) 2007 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.io.ByteArrayInputStream; |
| |
| import org.apache.harmony.luni.util.Base64; |
| |
| /** |
| * This class is a concrete implementation of StreamLoader that uses the |
| * content supplied as a URL as the source for the stream. The mimetype |
| * optionally provided in the URL is extracted and inserted into the HTTP |
| * response headers. |
| */ |
| class DataLoader extends StreamLoader { |
| |
| /** |
| * Constructor uses the dataURL as the source for an InputStream |
| * @param dataUrl data: URL string optionally containing a mimetype |
| * @param loadListener LoadListener to pass the content to |
| */ |
| DataLoader(String dataUrl, LoadListener loadListener) { |
| super(loadListener); |
| |
| String url = dataUrl.substring("data:".length()); |
| byte[] data = null; |
| int commaIndex = url.indexOf(','); |
| if (commaIndex != -1) { |
| String contentType = url.substring(0, commaIndex); |
| data = url.substring(commaIndex + 1).getBytes(); |
| loadListener.parseContentTypeHeader(contentType); |
| if ("base64".equals(loadListener.transferEncoding())) { |
| data = Base64.decode(data); |
| } |
| } else { |
| data = url.getBytes(); |
| } |
| mDataStream = new ByteArrayInputStream(data); |
| mContentLength = data.length; |
| } |
| |
| @Override |
| protected boolean setupStreamAndSendStatus() { |
| mHandler.status(1, 1, 0, "OK"); |
| return true; |
| } |
| |
| @Override |
| protected void buildHeaders(android.net.http.Headers h) { |
| } |
| |
| /** |
| * Construct a DataLoader and instruct it to start loading. |
| * |
| * @param url data: URL string optionally containing a mimetype |
| * @param loadListener LoadListener to pass the content to |
| */ |
| public static void requestUrl(String url, LoadListener loadListener) { |
| DataLoader loader = new DataLoader(url, loadListener); |
| loader.load(); |
| } |
| |
| } |