001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.wicket.extensions.markup.html.basic; 018 019import org.apache.wicket.util.string.AppendingStringBuffer; 020 021/** 022 * This implementation adds link render strategies for email addresses and urls. 023 * 024 * @see SmartLinkLabel 025 * @see SmartLinkMultiLineLabel 026 * 027 * @author Gerolf Seitz 028 */ 029public class DefaultLinkParser extends LinkParser 030{ 031 /** Email address pattern */ 032 private static final String emailPattern = "[\\w\\.\\-\\\\+]+@[\\w\\.\\-]+"; 033 034 /** URL pattern */ 035 private static final String urlPattern = "([a-zA-Z]+://[\\w\\.\\-\\:\\/~]+)[\\w\\.:\\-/?&=%]*"; 036 037 /** 038 * Email address render strategy.<br/> 039 * Renders <a href="mailto:{EMAIL}">{EMAIL}</a> 040 */ 041 public static final ILinkRenderStrategy EMAIL_RENDER_STRATEGY = new ILinkRenderStrategy() 042 { 043 @Override 044 public String buildLink(final String linkTarget) 045 { 046 return "<a href=\"mailto:" + linkTarget + "\">" + linkTarget + "</a>"; 047 } 048 }; 049 050 /** 051 * Email address render strategy. Similar to <code>EMAIL_RENDER_STRATEGY</code>, but encrypts 052 * the email address with html entities. 053 */ 054 public static final ILinkRenderStrategy ENCRYPTED_EMAIL_RENDER_STRATEGY = new ILinkRenderStrategy() 055 { 056 @Override 057 public String buildLink(final String linkTarget) 058 { 059 AppendingStringBuffer cryptedEmail = new AppendingStringBuffer(64); 060 for (int i = 0; i < linkTarget.length(); i++) 061 { 062 cryptedEmail.append("&#"); 063 cryptedEmail.append(Integer.toString(linkTarget.charAt(i))); 064 cryptedEmail.append(";"); 065 } 066 067 AppendingStringBuffer result = new AppendingStringBuffer(256); 068 result.append("<a href=\"mailto:"); 069 result.append(cryptedEmail.toString()); 070 result.append("\">"); 071 result.append(cryptedEmail.toString()); 072 result.append("</a>"); 073 074 return result.toString(); 075 } 076 }; 077 078 /** 079 * Url render strategy.<br/> 080 * Renders <a href="{URL}">{URL}</a> 081 */ 082 public static final ILinkRenderStrategy URL_RENDER_STRATEGY = new ILinkRenderStrategy() 083 { 084 @Override 085 public String buildLink(final String linkTarget) 086 { 087 int indexOfQuestion = linkTarget.indexOf('?'); 088 return "<a href=\"" + linkTarget + "\">" + 089 (indexOfQuestion == -1 ? linkTarget : linkTarget.substring(0, indexOfQuestion)) + 090 "</a>"; 091 } 092 }; 093 094 /** 095 * Default constructor. 096 */ 097 public DefaultLinkParser() 098 { 099 addLinkRenderStrategy(emailPattern, EMAIL_RENDER_STRATEGY); 100 addLinkRenderStrategy(urlPattern, URL_RENDER_STRATEGY); 101 } 102}