| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.servicecomb.foundation.vertx.http; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.nio.charset.Charset; |
| import java.nio.charset.StandardCharsets; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| |
| import javax.servlet.ServletInputStream; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletRequestWrapper; |
| import javax.ws.rs.HttpMethod; |
| import javax.ws.rs.core.MediaType; |
| |
| import com.google.common.annotations.VisibleForTesting; |
| import org.apache.commons.io.IOUtils; |
| import org.apache.commons.lang.StringUtils; |
| import org.apache.http.NameValuePair; |
| import org.apache.http.client.utils.URLEncodedUtils; |
| import org.apache.servicecomb.foundation.vertx.stream.BufferInputStream; |
| |
| import io.netty.buffer.ByteBuf; |
| import io.netty.buffer.Unpooled; |
| import io.vertx.core.buffer.Buffer; |
| |
| public class StandardHttpServletRequestEx extends HttpServletRequestWrapper implements HttpServletRequestEx { |
| private final BodyBufferSupport bodyBuffer = new BodyBufferSupportImpl(); |
| |
| private boolean cacheRequest; |
| |
| private ServletInputStream inputStream; |
| |
| // by servlet specification |
| // only parse application/x-www-form-urlencoded of post request automatically |
| // we will parse this even not post method |
| private Map<String, String[]> parameterMap; |
| |
| public StandardHttpServletRequestEx(HttpServletRequest request) { |
| super(request); |
| } |
| |
| public void setCacheRequest(boolean cacheRequest) { |
| this.cacheRequest = cacheRequest; |
| } |
| |
| @VisibleForTesting |
| public boolean isCacheRequest() { |
| return cacheRequest; |
| } |
| |
| @Override |
| public ServletInputStream getInputStream() throws IOException { |
| if (this.inputStream == null) { |
| if (cacheRequest) { |
| byte[] inputBytes = IOUtils.toByteArray(getRequest().getInputStream()); |
| ByteBuf byteBuf = Unpooled.wrappedBuffer(inputBytes); |
| this.inputStream = new BufferInputStream(byteBuf); |
| setBodyBuffer(Buffer.buffer(Unpooled.wrappedBuffer(byteBuf))); |
| } else { |
| this.inputStream = getRequest().getInputStream(); |
| } |
| } |
| return this.inputStream; |
| } |
| |
| @Override |
| public void setBodyBuffer(Buffer bodyBuffer) { |
| this.bodyBuffer.setBodyBuffer(bodyBuffer); |
| } |
| |
| @Override |
| public Buffer getBodyBuffer() { |
| return bodyBuffer.getBodyBuffer(); |
| } |
| |
| @Override |
| public byte[] getBodyBytes() { |
| return bodyBuffer.getBodyBytes(); |
| } |
| |
| @Override |
| public int getBodyBytesLength() { |
| return bodyBuffer.getBodyBytesLength(); |
| } |
| |
| private Map<String, String[]> parseParameterMap() { |
| // 1.post method already parsed by servlet |
| // 2.not APPLICATION_FORM_URLENCODED, no need to enhance |
| if (getMethod().equalsIgnoreCase(HttpMethod.POST) |
| || !StringUtils.startsWithIgnoreCase(getContentType(), MediaType.APPLICATION_FORM_URLENCODED)) { |
| return super.getParameterMap(); |
| } |
| |
| Map<String, List<String>> listMap = parseUrlEncodedBody(); |
| mergeParameterMaptoListMap(listMap); |
| return convertListMapToArrayMap(listMap); |
| } |
| |
| private Map<String, String[]> convertListMapToArrayMap(Map<String, List<String>> listMap) { |
| Map<String, String[]> arrayMap = new HashMap<>(); |
| for (Entry<String, List<String>> entry : listMap.entrySet()) { |
| arrayMap.put(entry.getKey(), entry.getValue().toArray(new String[0])); |
| } |
| return arrayMap; |
| } |
| |
| private void mergeParameterMaptoListMap(Map<String, List<String>> listMap) { |
| for (Entry<String, String[]> entry : super.getParameterMap().entrySet()) { |
| List<String> values = listMap.computeIfAbsent(entry.getKey(), k -> new ArrayList<>()); |
| // follow servlet behavior, inherited value first, and then body value |
| values.addAll(0, Arrays.asList(entry.getValue())); |
| } |
| } |
| |
| private Map<String, List<String>> parseUrlEncodedBody() { |
| try (InputStream inputStream = getInputStream()) { |
| Map<String, List<String>> listMap = new HashMap<>(); |
| String body = IOUtils.toString(inputStream, StandardCharsets.UTF_8); |
| List<NameValuePair> pairs = URLEncodedUtils |
| .parse(body, getCharacterEncoding() == null ? null : Charset.forName(getCharacterEncoding())); |
| for (NameValuePair pair : pairs) { |
| List<String> values = listMap.computeIfAbsent(pair.getName(), k -> new ArrayList<>()); |
| values.add(pair.getValue()); |
| } |
| return listMap; |
| } catch (IOException e) { |
| throw new IllegalStateException("", e); |
| } |
| } |
| |
| @Override |
| public String[] getParameterValues(String name) { |
| return getParameterMap().get(name); |
| } |
| |
| @Override |
| public String getParameter(String name) { |
| String[] values = getParameterMap().get(name); |
| return values == null ? null : values[0]; |
| } |
| |
| @Override |
| public Enumeration<String> getParameterNames() { |
| return Collections.enumeration(getParameterMap().keySet()); |
| } |
| |
| @Override |
| public Map<String, String[]> getParameterMap() { |
| if (parameterMap == null) { |
| parameterMap = parseParameterMap(); |
| } |
| |
| return parameterMap; |
| } |
| |
| @Override |
| public void setParameter(String name, String value) { |
| getParameterMap().put(name, new String[] {value}); |
| } |
| } |