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1
25
26 package org.snipsnap.snip;
27
28 import org.radeox.util.Encoder;
29 import org.radeox.util.i18n.ResourceManager;
30 import org.radeox.util.logging.Logger;
31 import org.snipsnap.app.Application;
32 import org.snipsnap.config.Configuration;
33 import org.snipsnap.snip.name.NameFormatter;
34 import org.snipsnap.snip.name.PathRemoveFormatter;
35 import org.snipsnap.util.URLEncoderDecoder;
36
37 import java.io.IOException  ;
38 import java.io.UnsupportedEncodingException ;
39 import java.io.Writer ;
40 import java.net.URL ;
41 import java.text.MessageFormat ;
42 import java.util.Arrays ;
43 import java.util.List ;
44
45
51
52 public class SnipLink {
53
54 public static NameFormatter formatter = new PathRemoveFormatter();
55
56
64 public static Writer appendUrlWithBase(Writer writer, String base, String name, String target)
65 throws IOException {
66 writer.write(base);
67 writer.write("/");
68 writer.write(encode(name));
69 if (target != null) {
70 writer.write("#");
71 writer.write(target);
72 }
73 return writer;
74 }
75
76 public static Writer appendUrl(Writer writer, String name, String target) throws IOException {
77 return appendUrlWithBase(writer, getSpaceRoot(), name, target);
78 }
79
80 public static Writer appendUrl(Writer writer, String name) throws IOException {
81 return appendUrlWithBase(writer, getSpaceRoot(), name, null);
82 }
83
84
87 public static Writer appendCreateLink(Writer writer, String name) throws IOException {
88 writer.write(makeCreateLink(name));
89 return writer;
90 }
91
92 public static StringBuffer appendCreateLink(StringBuffer buffer, String name) {
93 return buffer.append(makeCreateLink(name));
94 }
95
96 private static String makeCreateLink(String name) {
97 MessageFormat formatter = new MessageFormat (ResourceManager.getString("i18n.messages", "sniplink.create"),
98 ResourceManager.getLocale("i18n.messages"));
99
100 StringBuffer link = new StringBuffer ();
101 link.append("<a HREF=\"");
102 link.append(getExecRoot());
103 link.append("/new?name=");
104 link.append(encode(name));
105 link.append("\">").append(Encoder.escape(name)).append("</a>");
106
107 return formatter.format(new Object []{link.toString()});
108 }
109
110 public static String createLink(String name) {
111 StringBuffer buffer = new StringBuffer ();
112 return appendLink(buffer, name, name).toString();
113 }
114
115 public static String createLink(String name, String view) {
116 StringBuffer buffer = new StringBuffer ();
117 return appendLink(buffer, name, view).toString();
118 }
119
120 public static String createLink(String root, String name, String view) {
121 StringBuffer buffer = new StringBuffer ();
122 return appendLinkWithRoot(buffer, root, encode(name), view).toString();
123 }
124
125 public static Writer appendLink(Writer writer, Snip snip) throws IOException {
126 return appendLink(writer, snip.getName());
127 }
128
129 public static StringBuffer appendLink(StringBuffer buffer, Snip snip) {
130 return appendLink(buffer, snip.getName());
131 }
132
133 public static Writer appendLink(Writer writer, String name) throws IOException {
134 StringBuffer buffer = new StringBuffer ();
135 appendLink(buffer, name, name);
136 writer.write(buffer.toString());
137 return writer;
138 }
139
140 public static StringBuffer appendLink(StringBuffer buffer, String name) {
141 return appendLink(buffer, name, name);
142 }
143
144 public static Writer appendLink(Writer writer, String name, String view) throws IOException {
145 return appendLinkWithRoot(writer, getSpaceRoot(), encode(name), view);
146 }
147
148 public static StringBuffer appendLink(StringBuffer buffer, String name, String view, String target) {
149 return appendLinkWithRoot(buffer, getSpaceRoot(), encode(name) + "#" + target, view);
150 }
151
152 public static StringBuffer appendLink(StringBuffer buffer, String name, String view) {
153 return appendLinkWithRoot(buffer, getSpaceRoot(), encode(name), view);
154 }
155
156 public static Writer appendLinkWithRoot(Writer writer, String root, String name, String view) throws IOException {
157 writer.write("<a HREF=\"");
158 writer.write(root);
159 writer.write("/");
160 writer.write(name);
161 writer.write("\">");
162 view = formatter.format(view);
163 writer.write(Encoder.escape(view));
164 writer.write("</a>");
165 return writer;
166 }
167
168
171 public static StringBuffer appendLinkWithRoot(StringBuffer buffer, String root, String name, String view) {
172 buffer.append("<a HREF=\"");
173 buffer.append(root);
174 buffer.append("/");
175 buffer.append(name);
176 buffer.append("\">");
177 view = formatter.format(view);
178 buffer.append(Encoder.escape(view));
179 buffer.append("</a>");
180 return buffer;
181 }
182
183
191 public static String getImageRoot() {
192 return getCanonicalUrl("theme/images");
193 }
194
195 public static String getSpaceRoot() {
196 return getCanonicalUrl("space");
197 }
198
199 public static String getExecRoot() {
200 return getCanonicalUrl("exec");
201 }
202
203 public static String getCommentsRoot() {
204 return getCanonicalUrl("comments");
205 }
206
207 private static String getCanonicalUrl(String url) {
208 URL baseUrl = (URL ) Application.get().getObject(Application.URL);
209 if (null != baseUrl) {
210 return baseUrl.toExternalForm() + "/" + url;
211 }
212 return url;
213 }
214
215 private static List extensions = Arrays.asList(new String []{"png", "jpg", "jpeg", "gif"});
216
217 public static Writer appendImage(Writer writer, String name, String alt) throws IOException {
218 return appendImageWithRoot(writer, getImageRoot(), name, alt, "png", null);
219 }
220
221 public static Writer appendImage(Writer writer, String name, String alt, String ext) throws IOException {
222 return appendImageWithRoot(writer, getImageRoot(), name, alt, ext, null);
223 }
224
225 public static Writer appendImage(Writer writer, Snip snip, String name, String alt, String ext, String position) throws IOException {
226 return appendImageWithRoot(writer, getSpaceRoot() + "/" + snip.getNameEncoded(), name, alt, ext, position);
227 }
228
229
239 public static Writer appendImageWithRoot(Writer writer, String root, String name,
240 String alt, String ext, String position)
241 throws IOException {
242 int dotIndex = name.lastIndexOf('.');
244 if (dotIndex != -1) {
245 String imageExt = name.substring(dotIndex + 1);
246 if (extensions.contains(imageExt.toLowerCase())) {
247 ext = imageExt;
248 name = name.substring(0, dotIndex);
249 }
250 }
251 if (null == ext) {
252 ext = "png";
253 }
254
255 writer.write("<img SRC=\"");
256 writer.write(root);
257 writer.write("/");
258 writer.write(name);
259 writer.write(".");
260 writer.write(ext);
261 writer.write("\"");
262 if (alt != null) {
263 writer.write(" alt=\"");
264 writer.write(alt);
265 writer.write("\"");
266 } else {
267 writer.write(" alt=\"");
268 writer.write(name);
269 writer.write("\"");
270 }
271 if (position != null) {
272 writer.write(" class=\"");
273 writer.write(position);
274 writer.write("\"");
275 }
276 writer.write(" border=\"0\"/>");
277 return writer;
278 }
279
280 public static String encode(String s) {
282 try {
283 Configuration config = Application.get().getConfiguration();
284 String encodedSpace = config.getEncodedSpace();
285 if (null != encodedSpace && encodedSpace.length() > 0) {
286 return URLEncoderDecoder.encode(s, config.getEncoding()).replace(' ', encodedSpace.charAt(0));
287 } else {
288 return URLEncoderDecoder.encode(s, config.getEncoding());
289 }
290 } catch (UnsupportedEncodingException e) {
291 Logger.log(Logger.FATAL, "unsupported encoding: " + e);
292 return s;
293 }
294 }
295
296 public static String decode(String s) {
297 try {
298 Configuration config = Application.get().getConfiguration();
299 String encodedSpace = config.getEncodedSpace();
300 if (null != encodedSpace && encodedSpace.length() > 0) {
301 s = s.replace(encodedSpace.charAt(0), ' ');
302 }
303 return URLEncoderDecoder.decode(s, config.getEncoding());
304 } catch (UnsupportedEncodingException e) {
305 Logger.log(Logger.FATAL, "unsupported encoding: " + e);
306 return s;
307 }
308 }
309
310 public static String cutLength(String url, int len) {
311 if (url != null && len > 3 && url.length() > len) {
312 return url.substring(0, len - 3) + "...";
313 }
314 return url;
315 }
316
317 }
318 |
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