001 /**
002 *
003 * Copyright 2003-2004 The Apache Software Foundation
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * 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 */
017
018 package javax.mail;
019
020 import java.net.MalformedURLException;
021 import java.net.URI;
022 import java.net.URISyntaxException;
023 import java.net.URL;
024
025 /**
026 * @version $Rev: 46019 $ $Date: 2004-09-14 02:56:06 -0700 (Tue, 14 Sep 2004) $
027 */
028 public class URLName {
029 private String file;
030 private String host;
031 private String password;
032 private int port;
033 private String protocol;
034 private String ref;
035 private String username;
036 protected String fullURL;
037 private int hashCode;
038
039 public URLName(String url) {
040 parseString(url);
041 }
042
043 protected void parseString(String url) {
044 URI uri;
045 try {
046 if (url == null) {
047 uri = null;
048 } else {
049 uri = new URI(url);
050 }
051 } catch (URISyntaxException e) {
052 uri = null;
053 }
054 if (uri == null) {
055 protocol = null;
056 host = null;
057 port = -1;
058 file = null;
059 ref = null;
060 username = null;
061 password = null;
062 return;
063 }
064
065 protocol = checkBlank(uri.getScheme());
066 host = checkBlank(uri.getHost());
067 port = uri.getPort();
068 file = checkBlank(uri.getPath());
069 ref = checkBlank(uri.getFragment());
070 String userInfo = checkBlank(uri.getUserInfo());
071 if (userInfo == null) {
072 username = null;
073 password = null;
074 } else {
075 int pos = userInfo.indexOf(':');
076 if (pos == -1) {
077 username = userInfo;
078 password = null;
079 } else {
080 username = userInfo.substring(0, pos);
081 password = userInfo.substring(pos + 1);
082 }
083 }
084 updateFullURL();
085 }
086
087 public URLName(String protocol, String host, int port, String file, String username, String password) {
088 this.protocol = checkBlank(protocol);
089 this.host = checkBlank(host);
090 this.port = port;
091 if (file == null || file.length() == 0) {
092 this.file = null;
093 ref = null;
094 } else {
095 int pos = file.indexOf('#');
096 if (pos == -1) {
097 this.file = file;
098 ref = null;
099 } else {
100 this.file = file.substring(0, pos);
101 ref = file.substring(pos + 1);
102 }
103 }
104 this.username = checkBlank(username);
105 if (this.username != null) {
106 this.password = checkBlank(password);
107 } else {
108 this.password = null;
109 }
110 updateFullURL();
111 }
112
113 public URLName(URL url) {
114 protocol = checkBlank(url.getProtocol());
115 host = checkBlank(url.getHost());
116 port = url.getPort();
117 file = checkBlank(url.getFile());
118 ref = checkBlank(url.getRef());
119 String userInfo = checkBlank(url.getUserInfo());
120 if (userInfo == null) {
121 username = null;
122 password = null;
123 } else {
124 int pos = userInfo.indexOf(':');
125 if (pos == -1) {
126 username = userInfo;
127 password = null;
128 } else {
129 username = userInfo.substring(0, pos);
130 password = userInfo.substring(pos + 1);
131 }
132 }
133 updateFullURL();
134 }
135
136 private static String checkBlank(String target) {
137 if (target == null || target.length() == 0) {
138 return null;
139 } else {
140 return target;
141 }
142 }
143
144 private void updateFullURL() {
145 hashCode = 0;
146 StringBuffer buf = new StringBuffer(100);
147 if (protocol != null) {
148 buf.append(protocol).append(':');
149 if (host != null) {
150 buf.append("//");
151 if (username != null) {
152 buf.append(username);
153 if (password != null) {
154 buf.append(':').append(password);
155 }
156 buf.append('@');
157 }
158 buf.append(host);
159 if (port != -1) {
160 buf.append(':').append(port);
161 }
162 if (file != null) {
163 buf.append(file);
164 }
165 hashCode = buf.toString().hashCode();
166 if (ref != null) {
167 buf.append('#').append(ref);
168 }
169 }
170 }
171 fullURL = buf.toString();
172 }
173
174 public boolean equals(Object o) {
175 if (o instanceof URLName == false) {
176 return false;
177 }
178 URLName other = (URLName) o;
179 // check same protocol - false if either is null
180 if (protocol == null || other.protocol == null || !protocol.equals(other.protocol)) {
181 return false;
182 }
183
184 if (port != other.port) {
185 return false;
186 }
187
188 // check host - false if not (both null or both equal)
189 return areSame(host, other.host) && areSame(file, other.file) && areSame(username, other.username) && areSame(password, other.password);
190 }
191
192 private static boolean areSame(String s1, String s2) {
193 if (s1 == null) {
194 return s2 == null;
195 } else {
196 return s1.equals(s2);
197 }
198 }
199
200 public int hashCode() {
201 return hashCode;
202 }
203
204 public String toString() {
205 return fullURL;
206 }
207
208 public String getFile() {
209 return file;
210 }
211
212 public String getHost() {
213 return host;
214 }
215
216 public String getPassword() {
217 return password;
218 }
219
220 public int getPort() {
221 return port;
222 }
223
224 public String getProtocol() {
225 return protocol;
226 }
227
228 public String getRef() {
229 return ref;
230 }
231
232 public URL getURL() throws MalformedURLException {
233 return new URL(fullURL);
234 }
235
236 public String getUsername() {
237 return username;
238 }
239 }