| /* |
| * 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.chemistry.opencmis.server.shared; |
| |
| import java.io.IOException; |
| import java.util.Collections; |
| import java.util.Enumeration; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletRequestWrapper; |
| |
| import org.apache.chemistry.opencmis.commons.impl.IOUtils; |
| |
| /** |
| * HttpServletRequest wrapper that reads the query string in container |
| * independent way and decodes the parameter values with UTF-8. |
| */ |
| public class QueryStringHttpServletRequestWrapper extends HttpServletRequestWrapper { |
| |
| protected Map<String, String[]> parameters; |
| |
| public QueryStringHttpServletRequestWrapper(HttpServletRequest request) throws IOException { |
| super(request); |
| |
| parameters = new HashMap<String, String[]>(); |
| |
| // parse query string |
| parseFormData(request.getQueryString()); |
| } |
| |
| /** |
| * Parses the query string. |
| */ |
| protected final void parseFormData(String queryString) throws IOException { |
| if (queryString == null || queryString.length() < 3) { |
| return; |
| } |
| |
| String[] nameValuePairs = queryString.split("&"); |
| for (String nameValuePair : nameValuePairs) { |
| int x = nameValuePair.indexOf('='); |
| if (x > 0) { |
| String name = IOUtils.decodeURL(nameValuePair.substring(0, x)); |
| String value = (x == nameValuePair.length() - 1 ? "" : IOUtils |
| .decodeURL(nameValuePair.substring(x + 1))); |
| addParameter(name, value); |
| } else { |
| String name = IOUtils.decodeURL(nameValuePair); |
| addParameter(name, (String) null); |
| } |
| } |
| } |
| |
| /** |
| * Adds a value to a parameter. |
| */ |
| protected final void addParameter(String name, String value) { |
| String[] values = parameters.get(name); |
| |
| if (values == null) { |
| parameters.put(name, new String[] { value }); |
| } else { |
| String[] newValues = new String[values.length + 1]; |
| System.arraycopy(values, 0, newValues, 0, values.length); |
| newValues[newValues.length - 1] = value; |
| parameters.put(name, newValues); |
| } |
| } |
| |
| /** |
| * Adds an array of values to a parameter. |
| */ |
| protected final void addParameter(String name, String[] additionalValues) { |
| String[] values = parameters.get(name); |
| |
| if (values == null) { |
| parameters.put(name, additionalValues); |
| } else { |
| String[] newValues = new String[values.length + additionalValues.length]; |
| System.arraycopy(values, 0, newValues, 0, values.length); |
| System.arraycopy(additionalValues, 0, newValues, values.length, additionalValues.length); |
| parameters.put(name, newValues); |
| } |
| } |
| |
| @Override |
| public final String getParameter(String name) { |
| String[] values = parameters.get(name); |
| if ((values == null) || (values.length == 0)) { |
| return null; |
| } |
| |
| return values[0]; |
| } |
| |
| @Override |
| public final Map<String, String[]> getParameterMap() { |
| return parameters; |
| } |
| |
| @Override |
| public final Enumeration<String> getParameterNames() { |
| return Collections.enumeration(parameters.keySet()); |
| } |
| |
| @Override |
| public final String[] getParameterValues(String name) { |
| return parameters.get(name); |
| } |
| } |