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-rw-r--r--OpenSim/Framework/LLSDxmlEncode.cs501
1 files changed, 501 insertions, 0 deletions
diff --git a/OpenSim/Framework/LLSDxmlEncode.cs b/OpenSim/Framework/LLSDxmlEncode.cs
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28// a class for low level LLSD encoding into a provided StringBuilder
29// for cases where we already need to know the low level detail
30// and so using something like OSD or even protbuf is just a pure waste
31
32using System;
33using System.Globalization;
34using System.Text;
35using OpenMetaverse;
36
37namespace OpenSim.Framework
38{
39 public static class LLSDxmlEncode
40 {
41 static readonly DateTime depoch = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
42
43 public static void AddStart(StringBuilder sb, bool addxmlversion = false)
44 {
45 if(addxmlversion)
46 sb.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?><llsd>"); // legacy llsd xml name still valid
47 else
48 sb.Append("<llsd>");
49 }
50
51 // got tired of creating a stringbuilder all the time;
52 public static StringBuilder Start(int size = 256, bool addxmlversion = false)
53 {
54 StringBuilder sb = new StringBuilder(size);
55 if(addxmlversion)
56 sb.Append("<?xml version=\"1.0\" encoding=\"UTF-8\"?><llsd>"); // legacy llsd xml name still valid
57 else
58 sb.Append("<llsd>");
59 return sb;
60 }
61
62 public static void AddEnd(StringBuilder sb)
63 {
64 sb.Append("</llsd>");
65 }
66
67 public static string End(StringBuilder sb)
68 {
69 sb.Append("</llsd>");
70 return sb.ToString();
71 }
72
73 // map == a list of key value pairs
74 public static void AddMap(StringBuilder sb)
75 {
76 sb.Append("<map>");
77 }
78
79 public static void AddEndMap(StringBuilder sb)
80 {
81 sb.Append("</map>");
82 }
83
84 public static void AddEmpyMap(StringBuilder sb)
85 {
86 sb.Append("<map />");
87 }
88
89 // array == a list values
90 public static void AddArray(StringBuilder sb)
91 {
92 sb.Append("<array>");
93 }
94
95 public static void AddEndArray(StringBuilder sb)
96 {
97 sb.Append("</array>");
98 }
99
100 public static void AddEmpyArray(StringBuilder sb)
101 {
102 sb.Append("<array />");
103 }
104
105 // undefined or null
106 public static void AddUnknownElem(StringBuilder sb)
107 {
108 sb.Append("<undef />");
109 }
110
111 public static void AddElem(bool e, StringBuilder sb)
112 {
113 if(e)
114 sb.Append("<boolean>1</boolean>");
115 else
116 sb.Append("<boolean />");
117 }
118
119 public static void AddElem(byte e, StringBuilder sb)
120 {
121 if(e == 0)
122 sb.Append("<integer />");
123 else
124 {
125 sb.Append("<integer>");
126 sb.Append(e.ToString());
127 sb.Append("</integer>");
128 }
129 }
130
131 public static void AddElem(int e, StringBuilder sb)
132 {
133 if(e == 0)
134 sb.Append("<integer />");
135 else
136 {
137 sb.Append("<integer>");
138 sb.Append(e.ToString());
139 sb.Append("</integer>");
140 }
141 }
142
143 public static void AddElem(float e, StringBuilder sb)
144 {
145 if(e == 0)
146 sb.Append("<real />");
147 else
148 {
149 sb.Append("<real>");
150 sb.Append(e.ToString(CultureInfo.InvariantCulture));
151 sb.Append("</real>");
152 }
153 }
154
155 public static void AddElem(double e, StringBuilder sb)
156 {
157 if(e == 0)
158 sb.Append("<real />");
159 else
160 {
161 sb.Append("<real>");
162 sb.Append(e.ToString(CultureInfo.InvariantCulture));
163 sb.Append("</real>");
164 }
165 }
166
167 public static void AddElem(UUID e, StringBuilder sb)
168 {
169 if(e == UUID.Zero)
170 sb.Append("<uuid />");
171 else
172 {
173 sb.Append("<uuid>");
174 EscapeToXML(e.ToString(), sb);
175 sb.Append("</uuid>");
176 }
177 }
178
179 public static void AddElem(string e, StringBuilder sb)
180 {
181 if(String.IsNullOrEmpty(e))
182 sb.Append("<string />");
183 else
184 {
185 sb.Append("<string>");
186 sb.Append(e.ToString());
187 sb.Append("</string>");
188 }
189 }
190
191 public static void AddRawElem(string e, StringBuilder sb)
192 {
193 if(String.IsNullOrEmpty(e))
194 sb.Append("<string />");
195 else
196 {
197 sb.Append("<string>");
198 sb.Append(e);
199 sb.Append("</string>");
200 }
201 }
202
203 public static void AddElem(Uri e, StringBuilder sb)
204 {
205 if(e == null)
206 {
207 sb.Append("<uri />");
208 return;
209 }
210
211 string s;
212 if (e.IsAbsoluteUri)
213 s = e.AbsoluteUri;
214 else
215 s = e.ToString();
216
217 if(String.IsNullOrEmpty(s))
218 sb.Append("<uri />");
219 else
220 {
221 sb.Append("<uri>");
222 sb.Append(s);
223 sb.Append("</uri>");
224 }
225 }
226
227 public static void AddElem(DateTime e, StringBuilder sb)
228 {
229 DateTime u = e.ToUniversalTime();
230 if(u == depoch)
231 {
232 sb.Append("<date />");
233 return;
234 }
235 string format;
236 if(u.Hour == 0 && u.Minute == 0 && u.Second == 0)
237 format = "yyyy-MM-dd";
238 else if (u.Millisecond > 0)
239 format = "yyyy-MM-ddTHH:mm:ss.ffZ";
240 else
241 format = "yyyy-MM-ddTHH:mm:ssZ";
242 sb.Append("<date>");
243 sb.Append(u.ToString(format,CultureInfo.InvariantCulture));
244 sb.Append("</date>");
245 }
246
247//************ key value *******************
248// assumes name is a valid llsd key
249
250 public static void AddMap(string name, StringBuilder sb)
251 {
252 sb.Append("<key>");
253 sb.Append(name);
254 sb.Append("</key><map>");
255 }
256
257 public static void AddEmpyMap(string name, StringBuilder sb)
258 {
259 sb.Append("<key>");
260 sb.Append(name);
261 sb.Append("</key><map />");
262 }
263
264 // array == a list values
265 public static void AddArray(string name, StringBuilder sb)
266 {
267 sb.Append("<key>");
268 sb.Append(name);
269 sb.Append("</key><array>");
270 }
271
272 public static void AddEmpyArray(string name, StringBuilder sb)
273 {
274 sb.Append("<key>");
275 sb.Append(name);
276 sb.Append("</key><array />");
277 }
278
279 // undefined or null
280 public static void AddUnknownElem(string name, StringBuilder sb)
281 {
282 sb.Append("<key>");
283 sb.Append(name);
284 sb.Append("</key><undef />");
285 }
286
287 public static void AddElem(string name, bool e, StringBuilder sb)
288 {
289 sb.Append("<key>");
290 sb.Append(name);
291 sb.Append("</key>");
292
293 if(e)
294 sb.Append("<boolean>1</boolean>");
295 else
296 sb.Append("<boolean />");
297 }
298
299 public static void AddElem(string name, byte e, StringBuilder sb)
300 {
301 sb.Append("<key>");
302 sb.Append(name);
303 sb.Append("</key>");
304
305 if(e == 0)
306 sb.Append("<integer />");
307 else
308 {
309 sb.Append("<integer>");
310 sb.Append(e.ToString());
311 sb.Append("</integer>");
312 }
313 }
314
315 public static void AddElem(string name, int e, StringBuilder sb)
316 {
317 sb.Append("<key>");
318 sb.Append(name);
319 sb.Append("</key>");
320
321 if(e == 0)
322 sb.Append("<integer />");
323 else
324 {
325 sb.Append("<integer>");
326 sb.Append(e.ToString());
327 sb.Append("</integer>");
328 }
329 }
330
331 public static void AddElem(string name, float e, StringBuilder sb)
332 {
333 sb.Append("<key>");
334 sb.Append(name);
335 sb.Append("</key>");
336
337 if(e == 0)
338 sb.Append("<real />");
339 else
340 {
341 sb.Append("<real>");
342 sb.Append(e.ToString(CultureInfo.InvariantCulture));
343 sb.Append("</real>");
344 }
345 }
346
347 public static void AddElem(string name, double e, StringBuilder sb)
348 {
349 sb.Append("<key>");
350 sb.Append(name);
351 sb.Append("</key>");
352
353 if(e == 0)
354 sb.Append("<real />");
355 else
356 {
357 sb.Append("<real>");
358 sb.Append(e.ToString(CultureInfo.InvariantCulture));
359 sb.Append("</real>");
360 }
361 }
362
363 public static void AddElem(string name, UUID e, StringBuilder sb)
364 {
365 sb.Append("<key>");
366 sb.Append(name);
367 sb.Append("</key>");
368
369 if(e == UUID.Zero)
370 sb.Append("<uuid />");
371 else
372 {
373 sb.Append("<uuid>");
374 EscapeToXML(e.ToString(), sb);
375 sb.Append("</uuid>");
376 }
377 }
378
379 public static void AddElem(string name, string e, StringBuilder sb)
380 {
381 sb.Append("<key>");
382 sb.Append(name);
383 sb.Append("</key>");
384
385 if(String.IsNullOrEmpty(e))
386 sb.Append("<string />");
387 else
388 {
389 sb.Append("<string>");
390 sb.Append(e.ToString());
391 sb.Append("</string>");
392 }
393 }
394
395 public static void AddRawElem(string name, string e, StringBuilder sb)
396 {
397 sb.Append("<key>");
398 sb.Append(name);
399 sb.Append("</key>");
400
401 if(String.IsNullOrEmpty(e))
402 sb.Append("<string />");
403 else
404 {
405 sb.Append("<string>");
406 sb.Append(e);
407 sb.Append("</string>");
408 }
409 }
410
411 public static void AddElem(string name, Uri e, StringBuilder sb)
412 {
413 sb.Append("<key>");
414 sb.Append(name);
415 sb.Append("</key>");
416
417 if(e == null)
418 {
419 sb.Append("<uri />");
420 return;
421 }
422
423 string s;
424 if (e.IsAbsoluteUri)
425 s = e.AbsoluteUri;
426 else
427 s = e.ToString();
428
429 if(String.IsNullOrEmpty(s))
430 sb.Append("<uri />");
431 else
432 {
433 sb.Append("<uri>");
434 sb.Append(s);
435 sb.Append("</uri>");
436 }
437 }
438
439 public static void AddElem(string name, DateTime e, StringBuilder sb)
440 {
441 sb.Append("<key>");
442 sb.Append(name);
443 sb.Append("</key>");
444
445 DateTime u = e.ToUniversalTime();
446 if(u == depoch)
447 {
448 sb.Append("<date />");
449 return;
450 }
451 string format;
452 if(u.Hour == 0 && u.Minute == 0 && u.Second == 0)
453 format = "yyyy-MM-dd";
454 else if (u.Millisecond > 0)
455 format = "yyyy-MM-ddTHH:mm:ss.ffZ";
456 else
457 format = "yyyy-MM-ddTHH:mm:ssZ";
458 sb.Append("<date>");
459 sb.Append(u.ToString(format,CultureInfo.InvariantCulture));
460 sb.Append("</date>");
461 }
462
463 public static void AddLLSD(string e, StringBuilder sb)
464 {
465 sb.Append(e);
466 }
467
468 public static void EscapeToXML(string s, StringBuilder sb)
469 {
470 int i;
471 char c;
472 int len = s.Length;
473
474 for (i = 0; i < len; i++)
475 {
476 c = s[i];
477 switch (c)
478 {
479 case '<':
480 sb.Append("&lt;");
481 break;
482 case '>':
483 sb.Append("&gt;");
484 break;
485 case '&':
486 sb.Append("&amp;");
487 break;
488 case '"':
489 sb.Append("&quot;");
490 break;
491 case '\\':
492 sb.Append("&apos;");
493 break;
494 default:
495 sb.Append(c);
496 break;
497 }
498 }
499 }
500 }
501}
generated by cgit v1.1 at 2025-01-04 17:48:02 +0000