78 lines
2.5 KiB
Java
78 lines
2.5 KiB
Java
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/*
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* Copyright (C) 2007 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.webkit;
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import android.net.http.EventHandler;
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import com.android.internal.R;
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import java.io.ByteArrayInputStream;
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import org.apache.harmony.luni.util.Base64;
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/**
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* This class is a concrete implementation of StreamLoader that uses the
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* content supplied as a URL as the source for the stream. The mimetype
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* optionally provided in the URL is extracted and inserted into the HTTP
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* response headers.
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*/
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class DataLoader extends StreamLoader {
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/**
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* Constructor uses the dataURL as the source for an InputStream
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* @param dataUrl data: URL string optionally containing a mimetype
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* @param loadListener LoadListener to pass the content to
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*/
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DataLoader(String dataUrl, LoadListener loadListener) {
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super(loadListener);
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String url = dataUrl.substring("data:".length());
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byte[] data = null;
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int commaIndex = url.indexOf(',');
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if (commaIndex != -1) {
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String contentType = url.substring(0, commaIndex);
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data = url.substring(commaIndex + 1).getBytes();
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loadListener.parseContentTypeHeader(contentType);
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if ("base64".equals(loadListener.transferEncoding())) {
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data = Base64.decode(data);
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}
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} else {
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data = url.getBytes();
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}
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if (data != null) {
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mDataStream = new ByteArrayInputStream(data);
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mContentLength = data.length;
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}
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}
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@Override
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protected boolean setupStreamAndSendStatus() {
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if (mDataStream != null) {
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mLoadListener.status(1, 1, 200, "OK");
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return true;
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} else {
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mLoadListener.error(EventHandler.ERROR,
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mContext.getString(R.string.httpError));
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return false;
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}
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}
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@Override
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protected void buildHeaders(android.net.http.Headers h) {
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}
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}
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