/src/libxslt/libxslt/extensions.c
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1 | | /* |
2 | | * extensions.c: Implemetation of the extensions support |
3 | | * |
4 | | * Reference: |
5 | | * http://www.w3.org/TR/1999/REC-xslt-19991116 |
6 | | * |
7 | | * See Copyright for the status of this software. |
8 | | * |
9 | | * daniel@veillard.com |
10 | | */ |
11 | | |
12 | | #define IN_LIBXSLT |
13 | | #include "libxslt.h" |
14 | | |
15 | | #include <string.h> |
16 | | #include <limits.h> |
17 | | |
18 | | #include <libxml/xmlmemory.h> |
19 | | #include <libxml/tree.h> |
20 | | #include <libxml/hash.h> |
21 | | #include <libxml/xmlerror.h> |
22 | | #include <libxml/parserInternals.h> |
23 | | #include <libxml/xpathInternals.h> |
24 | | #ifdef WITH_MODULES |
25 | | #include <libxml/xmlmodule.h> |
26 | | #endif |
27 | | #include <libxml/list.h> |
28 | | #include <libxml/xmlIO.h> |
29 | | #include "xslt.h" |
30 | | #include "xsltInternals.h" |
31 | | #include "xsltlocale.h" |
32 | | #include "xsltutils.h" |
33 | | #include "imports.h" |
34 | | #include "extensions.h" |
35 | | |
36 | | #ifdef _WIN32 |
37 | | #include <stdlib.h> /* for _MAX_PATH */ |
38 | | #ifndef PATH_MAX |
39 | | #define PATH_MAX _MAX_PATH |
40 | | #endif |
41 | | #endif |
42 | | |
43 | | #ifdef WITH_XSLT_DEBUG |
44 | | #define WITH_XSLT_DEBUG_EXTENSIONS |
45 | | #endif |
46 | | |
47 | | /************************************************************************ |
48 | | * * |
49 | | * Private Types and Globals * |
50 | | * * |
51 | | ************************************************************************/ |
52 | | |
53 | | typedef struct _xsltExtDef xsltExtDef; |
54 | | typedef xsltExtDef *xsltExtDefPtr; |
55 | | struct _xsltExtDef { |
56 | | struct _xsltExtDef *next; |
57 | | xmlChar *prefix; |
58 | | xmlChar *URI; |
59 | | void *data; |
60 | | }; |
61 | | |
62 | | typedef struct _xsltExtModule xsltExtModule; |
63 | | typedef xsltExtModule *xsltExtModulePtr; |
64 | | struct _xsltExtModule { |
65 | | xsltExtInitFunction initFunc; |
66 | | xsltExtShutdownFunction shutdownFunc; |
67 | | xsltStyleExtInitFunction styleInitFunc; |
68 | | xsltStyleExtShutdownFunction styleShutdownFunc; |
69 | | }; |
70 | | |
71 | | typedef struct _xsltExtData xsltExtData; |
72 | | typedef xsltExtData *xsltExtDataPtr; |
73 | | struct _xsltExtData { |
74 | | xsltExtModulePtr extModule; |
75 | | void *extData; |
76 | | }; |
77 | | |
78 | | typedef struct _xsltExtElement xsltExtElement; |
79 | | typedef xsltExtElement *xsltExtElementPtr; |
80 | | struct _xsltExtElement { |
81 | | xsltPreComputeFunction precomp; |
82 | | xsltTransformFunction transform; |
83 | | }; |
84 | | |
85 | | static xmlHashTablePtr xsltExtensionsHash = NULL; |
86 | | static xmlHashTablePtr xsltFunctionsHash = NULL; |
87 | | static xmlHashTablePtr xsltElementsHash = NULL; |
88 | | static xmlHashTablePtr xsltTopLevelsHash = NULL; |
89 | | static xmlHashTablePtr xsltModuleHash = NULL; |
90 | | static xmlMutexPtr xsltExtMutex = NULL; |
91 | | |
92 | | /************************************************************************ |
93 | | * * |
94 | | * Type functions * |
95 | | * * |
96 | | ************************************************************************/ |
97 | | |
98 | | /** |
99 | | * xsltNewExtDef: |
100 | | * @prefix: the extension prefix |
101 | | * @URI: the namespace URI |
102 | | * |
103 | | * Create a new XSLT ExtDef |
104 | | * |
105 | | * Returns the newly allocated xsltExtDefPtr or NULL in case of error |
106 | | */ |
107 | | static xsltExtDefPtr |
108 | | xsltNewExtDef(const xmlChar * prefix, const xmlChar * URI) |
109 | 0 | { |
110 | 0 | xsltExtDefPtr cur; |
111 | |
|
112 | 0 | cur = (xsltExtDefPtr) xmlMalloc(sizeof(xsltExtDef)); |
113 | 0 | if (cur == NULL) { |
114 | 0 | xsltTransformError(NULL, NULL, NULL, |
115 | 0 | "xsltNewExtDef : malloc failed\n"); |
116 | 0 | return (NULL); |
117 | 0 | } |
118 | 0 | memset(cur, 0, sizeof(xsltExtDef)); |
119 | 0 | if (prefix != NULL) |
120 | 0 | cur->prefix = xmlStrdup(prefix); |
121 | 0 | if (URI != NULL) |
122 | 0 | cur->URI = xmlStrdup(URI); |
123 | 0 | return (cur); |
124 | 0 | } |
125 | | |
126 | | /** |
127 | | * xsltFreeExtDef: |
128 | | * @extensiond: an XSLT extension definition |
129 | | * |
130 | | * Free up the memory allocated by @extensiond |
131 | | */ |
132 | | static void |
133 | | xsltFreeExtDef(xsltExtDefPtr extensiond) |
134 | 0 | { |
135 | 0 | if (extensiond == NULL) |
136 | 0 | return; |
137 | 0 | if (extensiond->prefix != NULL) |
138 | 0 | xmlFree(extensiond->prefix); |
139 | 0 | if (extensiond->URI != NULL) |
140 | 0 | xmlFree(extensiond->URI); |
141 | 0 | xmlFree(extensiond); |
142 | 0 | } |
143 | | |
144 | | /** |
145 | | * xsltFreeExtDefList: |
146 | | * @extensiond: an XSLT extension definition list |
147 | | * |
148 | | * Free up the memory allocated by all the elements of @extensiond |
149 | | */ |
150 | | static void |
151 | | xsltFreeExtDefList(xsltExtDefPtr extensiond) |
152 | 0 | { |
153 | 0 | xsltExtDefPtr cur; |
154 | |
|
155 | 0 | while (extensiond != NULL) { |
156 | 0 | cur = extensiond; |
157 | 0 | extensiond = extensiond->next; |
158 | 0 | xsltFreeExtDef(cur); |
159 | 0 | } |
160 | 0 | } |
161 | | |
162 | | /** |
163 | | * xsltNewExtModule: |
164 | | * @initFunc: the module initialization function |
165 | | * @shutdownFunc: the module shutdown function |
166 | | * @styleInitFunc: the stylesheet module data allocator function |
167 | | * @styleShutdownFunc: the stylesheet module data free function |
168 | | * |
169 | | * Create a new XSLT extension module |
170 | | * |
171 | | * Returns the newly allocated xsltExtModulePtr or NULL in case of error |
172 | | */ |
173 | | static xsltExtModulePtr |
174 | | xsltNewExtModule(xsltExtInitFunction initFunc, |
175 | | xsltExtShutdownFunction shutdownFunc, |
176 | | xsltStyleExtInitFunction styleInitFunc, |
177 | | xsltStyleExtShutdownFunction styleShutdownFunc) |
178 | 7.40k | { |
179 | 7.40k | xsltExtModulePtr cur; |
180 | | |
181 | 7.40k | cur = (xsltExtModulePtr) xmlMalloc(sizeof(xsltExtModule)); |
182 | 7.40k | if (cur == NULL) { |
183 | 0 | xsltTransformError(NULL, NULL, NULL, |
184 | 0 | "xsltNewExtModule : malloc failed\n"); |
185 | 0 | return (NULL); |
186 | 0 | } |
187 | 7.40k | cur->initFunc = initFunc; |
188 | 7.40k | cur->shutdownFunc = shutdownFunc; |
189 | 7.40k | cur->styleInitFunc = styleInitFunc; |
190 | 7.40k | cur->styleShutdownFunc = styleShutdownFunc; |
191 | 7.40k | return (cur); |
192 | 7.40k | } |
193 | | |
194 | | /** |
195 | | * xsltFreeExtModule: |
196 | | * @ext: an XSLT extension module |
197 | | * |
198 | | * Free up the memory allocated by @ext |
199 | | */ |
200 | | static void |
201 | | xsltFreeExtModule(xsltExtModulePtr ext) |
202 | 0 | { |
203 | 0 | if (ext == NULL) |
204 | 0 | return; |
205 | 0 | xmlFree(ext); |
206 | 0 | } |
207 | | |
208 | | static void |
209 | 0 | xsltFreeExtModuleEntry(void *payload, const xmlChar *name ATTRIBUTE_UNUSED) { |
210 | 0 | xsltFreeExtModule((xsltExtModulePtr) payload); |
211 | 0 | } |
212 | | |
213 | | /** |
214 | | * xsltNewExtData: |
215 | | * @extModule: the module |
216 | | * @extData: the associated data |
217 | | * |
218 | | * Create a new XSLT extension module data wrapper |
219 | | * |
220 | | * Returns the newly allocated xsltExtDataPtr or NULL in case of error |
221 | | */ |
222 | | static xsltExtDataPtr |
223 | | xsltNewExtData(xsltExtModulePtr extModule, void *extData) |
224 | 4.04k | { |
225 | 4.04k | xsltExtDataPtr cur; |
226 | | |
227 | 4.04k | if (extModule == NULL) |
228 | 0 | return (NULL); |
229 | 4.04k | cur = (xsltExtDataPtr) xmlMalloc(sizeof(xsltExtData)); |
230 | 4.04k | if (cur == NULL) { |
231 | 0 | xsltTransformError(NULL, NULL, NULL, |
232 | 0 | "xsltNewExtData : malloc failed\n"); |
233 | 0 | return (NULL); |
234 | 0 | } |
235 | 4.04k | cur->extModule = extModule; |
236 | 4.04k | cur->extData = extData; |
237 | 4.04k | return (cur); |
238 | 4.04k | } |
239 | | |
240 | | /** |
241 | | * xsltFreeExtData: |
242 | | * @ext: an XSLT extension module data wrapper |
243 | | * |
244 | | * Free up the memory allocated by @ext |
245 | | */ |
246 | | static void |
247 | | xsltFreeExtData(xsltExtDataPtr ext) |
248 | 0 | { |
249 | 0 | if (ext == NULL) |
250 | 0 | return; |
251 | 0 | xmlFree(ext); |
252 | 0 | } |
253 | | |
254 | | static void |
255 | 0 | xsltFreeExtDataEntry(void *payload, const xmlChar *name ATTRIBUTE_UNUSED) { |
256 | 0 | xsltFreeExtData((xsltExtDataPtr) payload); |
257 | 0 | } |
258 | | |
259 | | /** |
260 | | * xsltNewExtElement: |
261 | | * @precomp: the pre-computation function |
262 | | * @transform: the transformation function |
263 | | * |
264 | | * Create a new XSLT extension element |
265 | | * |
266 | | * Returns the newly allocated xsltExtElementPtr or NULL in case of |
267 | | * error |
268 | | */ |
269 | | static xsltExtElementPtr |
270 | | xsltNewExtElement(xsltPreComputeFunction precomp, |
271 | | xsltTransformFunction transform) |
272 | 25.9k | { |
273 | 25.9k | xsltExtElementPtr cur; |
274 | | |
275 | 25.9k | if (transform == NULL) |
276 | 0 | return (NULL); |
277 | | |
278 | 25.9k | cur = (xsltExtElementPtr) xmlMalloc(sizeof(xsltExtElement)); |
279 | 25.9k | if (cur == NULL) { |
280 | 0 | xsltTransformError(NULL, NULL, NULL, |
281 | 0 | "xsltNewExtElement : malloc failed\n"); |
282 | 0 | return (NULL); |
283 | 0 | } |
284 | 25.9k | cur->precomp = precomp; |
285 | 25.9k | cur->transform = transform; |
286 | 25.9k | return (cur); |
287 | 25.9k | } |
288 | | |
289 | | /** |
290 | | * xsltFreeExtElement: |
291 | | * @ext: an XSLT extension element |
292 | | * |
293 | | * Frees up the memory allocated by @ext |
294 | | */ |
295 | | static void |
296 | | xsltFreeExtElement(xsltExtElementPtr ext) |
297 | 0 | { |
298 | 0 | if (ext == NULL) |
299 | 0 | return; |
300 | 0 | xmlFree(ext); |
301 | 0 | } |
302 | | |
303 | | static void |
304 | 0 | xsltFreeExtElementEntry(void *payload, const xmlChar *name ATTRIBUTE_UNUSED) { |
305 | 0 | xsltFreeExtElement((xsltExtElementPtr) payload); |
306 | 0 | } |
307 | | |
308 | | |
309 | | #ifdef WITH_MODULES |
310 | | typedef void (*exsltRegisterFunction) (void); |
311 | | |
312 | | #ifndef PATH_MAX |
313 | | #define PATH_MAX 4096 |
314 | | #endif |
315 | | |
316 | | /** |
317 | | * xsltExtModuleRegisterDynamic: |
318 | | * @URI: the function or element namespace URI |
319 | | * |
320 | | * Dynamically loads an extension plugin when available. |
321 | | * |
322 | | * The plugin name is derived from the URI by removing the |
323 | | * initial protocol designation, e.g. "http://", then converting |
324 | | * the characters ".", "-", "/", and "\" into "_", the removing |
325 | | * any trailing "/", then concatenating LIBXML_MODULE_EXTENSION. |
326 | | * |
327 | | * Plugins are loaded from the directory specified by the |
328 | | * environment variable LIBXSLT_PLUGINS_PATH, or if NULL, |
329 | | * by LIBXSLT_DEFAULT_PLUGINS_PATH() which is determined at |
330 | | * compile time. |
331 | | * |
332 | | * Returns 0 if successful, -1 in case of error. |
333 | | */ |
334 | | |
335 | | static int |
336 | | xsltExtModuleRegisterDynamic(const xmlChar * URI) |
337 | | { |
338 | | |
339 | | xmlModulePtr m; |
340 | | exsltRegisterFunction regfunc; |
341 | | xmlChar *ext_name; |
342 | | char module_filename[PATH_MAX]; |
343 | | const xmlChar *ext_directory = NULL; |
344 | | const xmlChar *protocol = NULL; |
345 | | xmlChar *i, *regfunc_name; |
346 | | void *vregfunc; |
347 | | int rc; |
348 | | |
349 | | /* check for bad inputs */ |
350 | | if (URI == NULL) |
351 | | return (-1); |
352 | | |
353 | | if (NULL == xsltModuleHash) { |
354 | | xsltModuleHash = xmlHashCreate(5); |
355 | | if (xsltModuleHash == NULL) |
356 | | return (-1); |
357 | | } |
358 | | |
359 | | xmlMutexLock(xsltExtMutex); |
360 | | |
361 | | /* have we attempted to register this module already? */ |
362 | | if (xmlHashLookup(xsltModuleHash, URI) != NULL) { |
363 | | xmlMutexUnlock(xsltExtMutex); |
364 | | return (-1); |
365 | | } |
366 | | xmlMutexUnlock(xsltExtMutex); |
367 | | |
368 | | /* transform extension namespace into a module name */ |
369 | | protocol = xmlStrstr(URI, BAD_CAST "://"); |
370 | | if (protocol == NULL) { |
371 | | ext_name = xmlStrdup(URI); |
372 | | } else { |
373 | | ext_name = xmlStrdup(protocol + 3); |
374 | | } |
375 | | if (ext_name == NULL) { |
376 | | return (-1); |
377 | | } |
378 | | |
379 | | i = ext_name; |
380 | | while ('\0' != *i) { |
381 | | if (('/' == *i) || ('\\' == *i) || ('.' == *i) || ('-' == *i)) |
382 | | *i = '_'; |
383 | | i++; |
384 | | } |
385 | | |
386 | | /* Strip underscores from end of string. */ |
387 | | while (i > ext_name && *(i - 1) == '_') { |
388 | | i--; |
389 | | *i = '\0'; |
390 | | } |
391 | | |
392 | | /* determine module directory */ |
393 | | ext_directory = (xmlChar *) getenv("LIBXSLT_PLUGINS_PATH"); |
394 | | |
395 | | if (NULL == ext_directory) { |
396 | | ext_directory = BAD_CAST LIBXSLT_DEFAULT_PLUGINS_PATH(); |
397 | | if (NULL == ext_directory) |
398 | | return (-1); |
399 | | } |
400 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
401 | | else |
402 | | xsltGenericDebug(xsltGenericDebugContext, |
403 | | "LIBXSLT_PLUGINS_PATH is %s\n", ext_directory); |
404 | | #endif |
405 | | |
406 | | /* build the module filename, and confirm the module exists */ |
407 | | xmlStrPrintf((xmlChar *) module_filename, sizeof(module_filename), |
408 | | "%s/%s%s", ext_directory, ext_name, LIBXML_MODULE_EXTENSION); |
409 | | |
410 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
411 | | xsltGenericDebug(xsltGenericDebugContext, |
412 | | "Attempting to load plugin: %s for URI: %s\n", |
413 | | module_filename, URI); |
414 | | #endif |
415 | | |
416 | | if (1 != xmlCheckFilename(module_filename)) { |
417 | | |
418 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
419 | | xsltGenericDebug(xsltGenericDebugContext, |
420 | | "xmlCheckFilename failed for plugin: %s\n", module_filename); |
421 | | #endif |
422 | | |
423 | | xmlFree(ext_name); |
424 | | return (-1); |
425 | | } |
426 | | |
427 | | /* attempt to open the module */ |
428 | | m = xmlModuleOpen(module_filename, 0); |
429 | | if (NULL == m) { |
430 | | |
431 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
432 | | xsltGenericDebug(xsltGenericDebugContext, |
433 | | "xmlModuleOpen failed for plugin: %s\n", module_filename); |
434 | | #endif |
435 | | |
436 | | xmlFree(ext_name); |
437 | | return (-1); |
438 | | } |
439 | | |
440 | | /* construct initialization func name */ |
441 | | regfunc_name = xmlStrdup(ext_name); |
442 | | regfunc_name = xmlStrcat(regfunc_name, BAD_CAST "_init"); |
443 | | |
444 | | vregfunc = NULL; |
445 | | rc = xmlModuleSymbol(m, (const char *) regfunc_name, &vregfunc); |
446 | | regfunc = vregfunc; |
447 | | if (0 == rc) { |
448 | | /* |
449 | | * Call the module's init function. Note that this function |
450 | | * calls xsltRegisterExtModuleFull which will add the module |
451 | | * to xsltExtensionsHash (together with it's entry points). |
452 | | */ |
453 | | (*regfunc) (); |
454 | | |
455 | | /* register this module in our hash */ |
456 | | xmlMutexLock(xsltExtMutex); |
457 | | xmlHashAddEntry(xsltModuleHash, URI, (void *) m); |
458 | | xmlMutexUnlock(xsltExtMutex); |
459 | | } else { |
460 | | |
461 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
462 | | xsltGenericDebug(xsltGenericDebugContext, |
463 | | "xmlModuleSymbol failed for plugin: %s, regfunc: %s\n", |
464 | | module_filename, regfunc_name); |
465 | | #endif |
466 | | |
467 | | /* if regfunc not found unload the module immediately */ |
468 | | xmlModuleClose(m); |
469 | | } |
470 | | |
471 | | xmlFree(ext_name); |
472 | | xmlFree(regfunc_name); |
473 | | return (NULL == regfunc) ? -1 : 0; |
474 | | } |
475 | | #else |
476 | | static int |
477 | | xsltExtModuleRegisterDynamic(const xmlChar * URI ATTRIBUTE_UNUSED) |
478 | 3.86k | { |
479 | 3.86k | return -1; |
480 | 3.86k | } |
481 | | #endif |
482 | | |
483 | | /************************************************************************ |
484 | | * * |
485 | | * The stylesheet extension prefixes handling * |
486 | | * * |
487 | | ************************************************************************/ |
488 | | |
489 | | |
490 | | /** |
491 | | * xsltFreeExts: |
492 | | * @style: an XSLT stylesheet |
493 | | * |
494 | | * Free up the memory used by XSLT extensions in a stylesheet |
495 | | */ |
496 | | void |
497 | | xsltFreeExts(xsltStylesheetPtr style) |
498 | 0 | { |
499 | 0 | if (style->nsDefs != NULL) |
500 | 0 | xsltFreeExtDefList((xsltExtDefPtr) style->nsDefs); |
501 | 0 | } |
502 | | |
503 | | /** |
504 | | * xsltRegisterExtPrefix: |
505 | | * @style: an XSLT stylesheet |
506 | | * @prefix: the prefix used (optional) |
507 | | * @URI: the URI associated to the extension |
508 | | * |
509 | | * Registers an extension namespace |
510 | | * This is called from xslt.c during compile-time. |
511 | | * The given prefix is not needed. |
512 | | * Called by: |
513 | | * xsltParseExtElemPrefixes() (new function) |
514 | | * xsltRegisterExtPrefix() (old function) |
515 | | * |
516 | | * Returns 0 in case of success, 1 if the @URI was already |
517 | | * registered as an extension namespace and |
518 | | * -1 in case of failure |
519 | | */ |
520 | | int |
521 | | xsltRegisterExtPrefix(xsltStylesheetPtr style, |
522 | | const xmlChar * prefix, const xmlChar * URI) |
523 | 0 | { |
524 | 0 | xsltExtDefPtr def, ret; |
525 | |
|
526 | 0 | if ((style == NULL) || (URI == NULL)) |
527 | 0 | return (-1); |
528 | | |
529 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
530 | | xsltGenericDebug(xsltGenericDebugContext, |
531 | | "Registering extension namespace '%s'.\n", URI); |
532 | | #endif |
533 | 0 | def = (xsltExtDefPtr) style->nsDefs; |
534 | | #ifdef XSLT_REFACTORED |
535 | | /* |
536 | | * The extension is associated with a namespace name. |
537 | | */ |
538 | | while (def != NULL) { |
539 | | if (xmlStrEqual(URI, def->URI)) |
540 | | return (1); |
541 | | def = def->next; |
542 | | } |
543 | | #else |
544 | 0 | while (def != NULL) { |
545 | 0 | if (xmlStrEqual(prefix, def->prefix)) |
546 | 0 | return (-1); |
547 | 0 | def = def->next; |
548 | 0 | } |
549 | 0 | #endif |
550 | 0 | ret = xsltNewExtDef(prefix, URI); |
551 | 0 | if (ret == NULL) |
552 | 0 | return (-1); |
553 | 0 | ret->next = (xsltExtDefPtr) style->nsDefs; |
554 | 0 | style->nsDefs = ret; |
555 | | |
556 | | /* |
557 | | * check whether there is an extension module with a stylesheet |
558 | | * initialization function. |
559 | | */ |
560 | | #ifdef XSLT_REFACTORED |
561 | | /* |
562 | | * Don't initialize modules based on specified namespaces via |
563 | | * the attribute "[xsl:]extension-element-prefixes". |
564 | | */ |
565 | | #else |
566 | 0 | if (xsltExtensionsHash != NULL) { |
567 | 0 | xsltExtModulePtr module; |
568 | |
|
569 | 0 | xmlMutexLock(xsltExtMutex); |
570 | 0 | module = xmlHashLookup(xsltExtensionsHash, URI); |
571 | 0 | xmlMutexUnlock(xsltExtMutex); |
572 | 0 | if (NULL == module) { |
573 | 0 | if (!xsltExtModuleRegisterDynamic(URI)) { |
574 | 0 | xmlMutexLock(xsltExtMutex); |
575 | 0 | module = xmlHashLookup(xsltExtensionsHash, URI); |
576 | 0 | xmlMutexUnlock(xsltExtMutex); |
577 | 0 | } |
578 | 0 | } |
579 | 0 | if (module != NULL) { |
580 | 0 | xsltStyleGetExtData(style, URI); |
581 | 0 | } |
582 | 0 | } |
583 | 0 | #endif |
584 | 0 | return (0); |
585 | 0 | } |
586 | | |
587 | | /************************************************************************ |
588 | | * * |
589 | | * The extensions modules interfaces * |
590 | | * * |
591 | | ************************************************************************/ |
592 | | |
593 | | /** |
594 | | * xsltRegisterExtFunction: |
595 | | * @ctxt: an XSLT transformation context |
596 | | * @name: the name of the element |
597 | | * @URI: the URI associated to the element |
598 | | * @function: the actual implementation which should be called |
599 | | * |
600 | | * Registers an extension function |
601 | | * |
602 | | * Returns 0 in case of success, -1 in case of failure |
603 | | */ |
604 | | int |
605 | | xsltRegisterExtFunction(xsltTransformContextPtr ctxt, const xmlChar * name, |
606 | | const xmlChar * URI, xmlXPathFunction function) |
607 | 0 | { |
608 | 0 | int ret; |
609 | |
|
610 | 0 | if ((ctxt == NULL) || (name == NULL) || |
611 | 0 | (URI == NULL) || (function == NULL)) |
612 | 0 | return (-1); |
613 | 0 | if (ctxt->xpathCtxt != NULL) { |
614 | 0 | xmlXPathRegisterFuncNS(ctxt->xpathCtxt, name, URI, function); |
615 | 0 | } |
616 | 0 | if (ctxt->extFunctions == NULL) |
617 | 0 | ctxt->extFunctions = xmlHashCreate(10); |
618 | 0 | if (ctxt->extFunctions == NULL) |
619 | 0 | return (-1); |
620 | | |
621 | 0 | ret = xmlHashAddEntry2(ctxt->extFunctions, name, URI, |
622 | 0 | XML_CAST_FPTR(function)); |
623 | |
|
624 | 0 | return(ret); |
625 | 0 | } |
626 | | |
627 | | /** |
628 | | * xsltRegisterExtElement: |
629 | | * @ctxt: an XSLT transformation context |
630 | | * @name: the name of the element |
631 | | * @URI: the URI associated to the element |
632 | | * @function: the actual implementation which should be called |
633 | | * |
634 | | * Registers an extension element |
635 | | * |
636 | | * Returns 0 in case of success, -1 in case of failure |
637 | | */ |
638 | | int |
639 | | xsltRegisterExtElement(xsltTransformContextPtr ctxt, const xmlChar * name, |
640 | | const xmlChar * URI, xsltTransformFunction function) |
641 | 88.8k | { |
642 | 88.8k | if ((ctxt == NULL) || (name == NULL) || |
643 | 88.8k | (URI == NULL) || (function == NULL)) |
644 | 0 | return (-1); |
645 | 88.8k | if (ctxt->extElements == NULL) |
646 | 3.70k | ctxt->extElements = xmlHashCreate(10); |
647 | 88.8k | if (ctxt->extElements == NULL) |
648 | 0 | return (-1); |
649 | 88.8k | return (xmlHashAddEntry2 |
650 | 88.8k | (ctxt->extElements, name, URI, XML_CAST_FPTR(function))); |
651 | 88.8k | } |
652 | | |
653 | | /** |
654 | | * xsltFreeCtxtExts: |
655 | | * @ctxt: an XSLT transformation context |
656 | | * |
657 | | * Free the XSLT extension data |
658 | | */ |
659 | | void |
660 | | xsltFreeCtxtExts(xsltTransformContextPtr ctxt) |
661 | 0 | { |
662 | 0 | if (ctxt->extElements != NULL) |
663 | 0 | xmlHashFree(ctxt->extElements, NULL); |
664 | 0 | if (ctxt->extFunctions != NULL) |
665 | 0 | xmlHashFree(ctxt->extFunctions, NULL); |
666 | 0 | } |
667 | | |
668 | | /** |
669 | | * xsltStyleGetStylesheetExtData: |
670 | | * @style: an XSLT stylesheet |
671 | | * @URI: the URI associated to the exension module |
672 | | * |
673 | | * Fires the compile-time initialization callback |
674 | | * of an extension module and returns a container |
675 | | * holding the user-data (retrieved via the callback). |
676 | | * |
677 | | * Returns the create module-data container |
678 | | * or NULL if such a module was not registered. |
679 | | */ |
680 | | static xsltExtDataPtr |
681 | | xsltStyleInitializeStylesheetModule(xsltStylesheetPtr style, |
682 | | const xmlChar * URI) |
683 | 3.70k | { |
684 | 3.70k | xsltExtDataPtr dataContainer; |
685 | 3.70k | void *userData = NULL; |
686 | 3.70k | xsltExtModulePtr module; |
687 | | |
688 | 3.70k | if ((style == NULL) || (URI == NULL)) |
689 | 0 | return(NULL); |
690 | | |
691 | 3.70k | if (xsltExtensionsHash == NULL) { |
692 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
693 | | xsltGenericDebug(xsltGenericDebugContext, |
694 | | "Not registered extension module: %s\n", URI); |
695 | | #endif |
696 | 0 | return(NULL); |
697 | 0 | } |
698 | | |
699 | 3.70k | xmlMutexLock(xsltExtMutex); |
700 | | |
701 | 3.70k | module = xmlHashLookup(xsltExtensionsHash, URI); |
702 | | |
703 | 3.70k | xmlMutexUnlock(xsltExtMutex); |
704 | | |
705 | 3.70k | if (module == NULL) { |
706 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
707 | | xsltGenericDebug(xsltGenericDebugContext, |
708 | | "Not registered extension module: %s\n", URI); |
709 | | #endif |
710 | 0 | return (NULL); |
711 | 0 | } |
712 | | /* |
713 | | * The specified module was registered so initialize it. |
714 | | */ |
715 | 3.70k | if (style->extInfos == NULL) { |
716 | 3.70k | style->extInfos = xmlHashCreate(10); |
717 | 3.70k | if (style->extInfos == NULL) |
718 | 0 | return (NULL); |
719 | 3.70k | } |
720 | | /* |
721 | | * Fire the initialization callback if available. |
722 | | */ |
723 | 3.70k | if (module->styleInitFunc == NULL) { |
724 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
725 | | xsltGenericDebug(xsltGenericDebugContext, |
726 | | "Initializing module with *no* callback: %s\n", URI); |
727 | | #endif |
728 | 3.70k | } else { |
729 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
730 | | xsltGenericDebug(xsltGenericDebugContext, |
731 | | "Initializing module with callback: %s\n", URI); |
732 | | #endif |
733 | | /* |
734 | | * Fire the initialization callback. |
735 | | */ |
736 | 0 | userData = module->styleInitFunc(style, URI); |
737 | 0 | } |
738 | | /* |
739 | | * Store the user-data in the context of the given stylesheet. |
740 | | */ |
741 | 3.70k | dataContainer = xsltNewExtData(module, userData); |
742 | 3.70k | if (dataContainer == NULL) |
743 | 0 | return (NULL); |
744 | | |
745 | 3.70k | if (xmlHashAddEntry(style->extInfos, URI, |
746 | 3.70k | (void *) dataContainer) < 0) |
747 | 0 | { |
748 | 0 | xsltTransformError(NULL, style, NULL, |
749 | 0 | "Failed to register module '%s'.\n", URI); |
750 | 0 | style->errors++; |
751 | 0 | if (module->styleShutdownFunc) |
752 | 0 | module->styleShutdownFunc(style, URI, userData); |
753 | 0 | xsltFreeExtData(dataContainer); |
754 | 0 | return (NULL); |
755 | 0 | } |
756 | | |
757 | 3.70k | return(dataContainer); |
758 | 3.70k | } |
759 | | |
760 | | /** |
761 | | * xsltStyleGetExtData: |
762 | | * @style: an XSLT stylesheet |
763 | | * @URI: the URI associated to the exension module |
764 | | * |
765 | | * Retrieve the data associated to the extension module |
766 | | * in this given stylesheet. |
767 | | * Called by: |
768 | | * xsltRegisterExtPrefix(), |
769 | | * ( xsltExtElementPreCompTest(), xsltExtInitTest ) |
770 | | * |
771 | | * Returns the pointer or NULL if not present |
772 | | */ |
773 | | void * |
774 | | xsltStyleGetExtData(xsltStylesheetPtr style, const xmlChar * URI) |
775 | 3.70k | { |
776 | 3.70k | xsltExtDataPtr dataContainer = NULL; |
777 | 3.70k | xsltStylesheetPtr tmpStyle; |
778 | | |
779 | 3.70k | if ((style == NULL) || (URI == NULL) || |
780 | 3.70k | (xsltExtensionsHash == NULL)) |
781 | 0 | return (NULL); |
782 | | |
783 | | |
784 | | #ifdef XSLT_REFACTORED |
785 | | /* |
786 | | * This is intended for global storage, so only the main |
787 | | * stylesheet will hold the data. |
788 | | */ |
789 | | tmpStyle = style; |
790 | | while (tmpStyle->parent != NULL) |
791 | | tmpStyle = tmpStyle->parent; |
792 | | if (tmpStyle->extInfos != NULL) { |
793 | | dataContainer = |
794 | | (xsltExtDataPtr) xmlHashLookup(tmpStyle->extInfos, URI); |
795 | | if (dataContainer != NULL) { |
796 | | /* |
797 | | * The module was already initialized in the context |
798 | | * of this stylesheet; just return the user-data that |
799 | | * comes with it. |
800 | | */ |
801 | | return(dataContainer->extData); |
802 | | } |
803 | | } |
804 | | #else |
805 | | /* |
806 | | * Old behaviour. |
807 | | */ |
808 | 3.70k | tmpStyle = style; |
809 | 7.40k | while (tmpStyle != NULL) { |
810 | 3.70k | if (tmpStyle->extInfos != NULL) { |
811 | 0 | dataContainer = |
812 | 0 | (xsltExtDataPtr) xmlHashLookup(tmpStyle->extInfos, URI); |
813 | 0 | if (dataContainer != NULL) { |
814 | 0 | return(dataContainer->extData); |
815 | 0 | } |
816 | 0 | } |
817 | 3.70k | tmpStyle = xsltNextImport(tmpStyle); |
818 | 3.70k | } |
819 | 3.70k | tmpStyle = style; |
820 | 3.70k | #endif |
821 | | |
822 | 3.70k | dataContainer = |
823 | 3.70k | xsltStyleInitializeStylesheetModule(tmpStyle, URI); |
824 | 3.70k | if (dataContainer != NULL) |
825 | 3.70k | return (dataContainer->extData); |
826 | 0 | return(NULL); |
827 | 3.70k | } |
828 | | |
829 | | #ifdef XSLT_REFACTORED |
830 | | /** |
831 | | * xsltStyleStylesheetLevelGetExtData: |
832 | | * @style: an XSLT stylesheet |
833 | | * @URI: the URI associated to the exension module |
834 | | * |
835 | | * Retrieve the data associated to the extension module in this given |
836 | | * stylesheet. |
837 | | * |
838 | | * Returns the pointer or NULL if not present |
839 | | */ |
840 | | void * |
841 | | xsltStyleStylesheetLevelGetExtData(xsltStylesheetPtr style, |
842 | | const xmlChar * URI) |
843 | | { |
844 | | xsltExtDataPtr dataContainer = NULL; |
845 | | |
846 | | if ((style == NULL) || (URI == NULL) || |
847 | | (xsltExtensionsHash == NULL)) |
848 | | return (NULL); |
849 | | |
850 | | if (style->extInfos != NULL) { |
851 | | dataContainer = (xsltExtDataPtr) xmlHashLookup(style->extInfos, URI); |
852 | | /* |
853 | | * The module was already initialized in the context |
854 | | * of this stylesheet; just return the user-data that |
855 | | * comes with it. |
856 | | */ |
857 | | if (dataContainer) |
858 | | return(dataContainer->extData); |
859 | | } |
860 | | |
861 | | dataContainer = |
862 | | xsltStyleInitializeStylesheetModule(style, URI); |
863 | | if (dataContainer != NULL) |
864 | | return (dataContainer->extData); |
865 | | return(NULL); |
866 | | } |
867 | | #endif |
868 | | |
869 | | /** |
870 | | * xsltGetExtData: |
871 | | * @ctxt: an XSLT transformation context |
872 | | * @URI: the URI associated to the exension module |
873 | | * |
874 | | * Retrieve the data associated to the extension module in this given |
875 | | * transformation. |
876 | | * |
877 | | * Returns the pointer or NULL if not present |
878 | | */ |
879 | | void * |
880 | | xsltGetExtData(xsltTransformContextPtr ctxt, const xmlChar * URI) |
881 | 37.6k | { |
882 | 37.6k | xsltExtDataPtr data; |
883 | | |
884 | 37.6k | if ((ctxt == NULL) || (URI == NULL)) |
885 | 0 | return (NULL); |
886 | 37.6k | if (ctxt->extInfos == NULL) { |
887 | 348 | ctxt->extInfos = xmlHashCreate(10); |
888 | 348 | if (ctxt->extInfos == NULL) |
889 | 0 | return (NULL); |
890 | 348 | data = NULL; |
891 | 37.2k | } else { |
892 | 37.2k | data = (xsltExtDataPtr) xmlHashLookup(ctxt->extInfos, URI); |
893 | 37.2k | } |
894 | 37.6k | if (data == NULL) { |
895 | 348 | void *extData; |
896 | 348 | xsltExtModulePtr module; |
897 | | |
898 | 348 | xmlMutexLock(xsltExtMutex); |
899 | | |
900 | 348 | module = xmlHashLookup(xsltExtensionsHash, URI); |
901 | | |
902 | 348 | xmlMutexUnlock(xsltExtMutex); |
903 | | |
904 | 348 | if (module == NULL) { |
905 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
906 | | xsltGenericDebug(xsltGenericDebugContext, |
907 | | "Not registered extension module: %s\n", URI); |
908 | | #endif |
909 | 0 | return (NULL); |
910 | 348 | } else { |
911 | 348 | if (module->initFunc == NULL) |
912 | 0 | return (NULL); |
913 | | |
914 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
915 | | xsltGenericDebug(xsltGenericDebugContext, |
916 | | "Initializing module: %s\n", URI); |
917 | | #endif |
918 | | |
919 | 348 | extData = module->initFunc(ctxt, URI); |
920 | 348 | if (extData == NULL) |
921 | 0 | return (NULL); |
922 | | |
923 | 348 | data = xsltNewExtData(module, extData); |
924 | 348 | if (data == NULL) |
925 | 0 | return (NULL); |
926 | 348 | if (xmlHashAddEntry(ctxt->extInfos, URI, (void *) data) < 0) { |
927 | 0 | xsltTransformError(ctxt, NULL, NULL, |
928 | 0 | "Failed to register module data: %s\n", |
929 | 0 | URI); |
930 | 0 | if (module->shutdownFunc) |
931 | 0 | module->shutdownFunc(ctxt, URI, extData); |
932 | 0 | xsltFreeExtData(data); |
933 | 0 | return (NULL); |
934 | 0 | } |
935 | 348 | } |
936 | 348 | } |
937 | 37.6k | return (data->extData); |
938 | 37.6k | } |
939 | | |
940 | | typedef struct _xsltInitExtCtxt xsltInitExtCtxt; |
941 | | struct _xsltInitExtCtxt { |
942 | | xsltTransformContextPtr ctxt; |
943 | | int ret; |
944 | | }; |
945 | | |
946 | | /** |
947 | | * xsltInitCtxtExt: |
948 | | * @styleData: the registered stylesheet data for the module |
949 | | * @ctxt: the XSLT transformation context + the return value |
950 | | * @URI: the extension URI |
951 | | * |
952 | | * Initializes an extension module |
953 | | */ |
954 | | static void |
955 | | xsltInitCtxtExt(void *payload, void *data, const xmlChar * URI) |
956 | 0 | { |
957 | 0 | xsltExtDataPtr styleData = (xsltExtDataPtr) payload; |
958 | 0 | xsltInitExtCtxt *ctxt = (xsltInitExtCtxt *) data; |
959 | 0 | xsltExtModulePtr module; |
960 | 0 | xsltExtDataPtr ctxtData; |
961 | 0 | void *extData; |
962 | |
|
963 | 0 | if ((styleData == NULL) || (ctxt == NULL) || (URI == NULL) || |
964 | 0 | (ctxt->ret == -1)) { |
965 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
966 | | xsltGenericDebug(xsltGenericDebugContext, |
967 | | "xsltInitCtxtExt: NULL param or error\n"); |
968 | | #endif |
969 | 0 | return; |
970 | 0 | } |
971 | 0 | module = styleData->extModule; |
972 | 0 | if ((module == NULL) || (module->initFunc == NULL)) { |
973 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
974 | | xsltGenericDebug(xsltGenericDebugContext, |
975 | | "xsltInitCtxtExt: no module or no initFunc\n"); |
976 | | #endif |
977 | 0 | return; |
978 | 0 | } |
979 | | |
980 | 0 | ctxtData = (xsltExtDataPtr) xmlHashLookup(ctxt->ctxt->extInfos, URI); |
981 | 0 | if (ctxtData != NULL) { |
982 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
983 | | xsltGenericDebug(xsltGenericDebugContext, |
984 | | "xsltInitCtxtExt: already initialized\n"); |
985 | | #endif |
986 | 0 | return; |
987 | 0 | } |
988 | | |
989 | 0 | extData = module->initFunc(ctxt->ctxt, URI); |
990 | 0 | if (extData == NULL) { |
991 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
992 | | xsltGenericDebug(xsltGenericDebugContext, |
993 | | "xsltInitCtxtExt: no extData\n"); |
994 | | #endif |
995 | 0 | } |
996 | 0 | ctxtData = xsltNewExtData(module, extData); |
997 | 0 | if (ctxtData == NULL) { |
998 | 0 | ctxt->ret = -1; |
999 | 0 | return; |
1000 | 0 | } |
1001 | | |
1002 | 0 | if (ctxt->ctxt->extInfos == NULL) |
1003 | 0 | ctxt->ctxt->extInfos = xmlHashCreate(10); |
1004 | 0 | if (ctxt->ctxt->extInfos == NULL) { |
1005 | 0 | ctxt->ret = -1; |
1006 | 0 | return; |
1007 | 0 | } |
1008 | | |
1009 | 0 | if (xmlHashAddEntry(ctxt->ctxt->extInfos, URI, ctxtData) < 0) { |
1010 | 0 | xsltGenericError(xsltGenericErrorContext, |
1011 | 0 | "Failed to register module data: %s\n", URI); |
1012 | 0 | if (module->shutdownFunc) |
1013 | 0 | module->shutdownFunc(ctxt->ctxt, URI, extData); |
1014 | 0 | xsltFreeExtData(ctxtData); |
1015 | 0 | ctxt->ret = -1; |
1016 | 0 | return; |
1017 | 0 | } |
1018 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
1019 | | xsltGenericDebug(xsltGenericDebugContext, "Registered module %s\n", |
1020 | | URI); |
1021 | | #endif |
1022 | 0 | ctxt->ret++; |
1023 | 0 | } |
1024 | | |
1025 | | /** |
1026 | | * xsltInitCtxtExts: |
1027 | | * @ctxt: an XSLT transformation context |
1028 | | * |
1029 | | * Initialize the set of modules with registered stylesheet data |
1030 | | * |
1031 | | * Returns the number of modules initialized or -1 in case of error |
1032 | | */ |
1033 | | int |
1034 | | xsltInitCtxtExts(xsltTransformContextPtr ctxt) |
1035 | 3.70k | { |
1036 | 3.70k | xsltStylesheetPtr style; |
1037 | 3.70k | xsltInitExtCtxt ctx; |
1038 | | |
1039 | 3.70k | if (ctxt == NULL) |
1040 | 0 | return (-1); |
1041 | | |
1042 | 3.70k | style = ctxt->style; |
1043 | 3.70k | if (style == NULL) |
1044 | 0 | return (-1); |
1045 | | |
1046 | 3.70k | ctx.ctxt = ctxt; |
1047 | 3.70k | ctx.ret = 0; |
1048 | | |
1049 | 7.40k | while (style != NULL) { |
1050 | 3.70k | if (style->extInfos != NULL) { |
1051 | 0 | xmlHashScan(style->extInfos, xsltInitCtxtExt, &ctx); |
1052 | 0 | if (ctx.ret == -1) |
1053 | 0 | return (-1); |
1054 | 0 | } |
1055 | 3.70k | style = xsltNextImport(style); |
1056 | 3.70k | } |
1057 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
1058 | | xsltGenericDebug(xsltGenericDebugContext, "Registered %d modules\n", |
1059 | | ctx.ret); |
1060 | | #endif |
1061 | 3.70k | return (ctx.ret); |
1062 | 3.70k | } |
1063 | | |
1064 | | /** |
1065 | | * xsltShutdownCtxtExt: |
1066 | | * @data: the registered data for the module |
1067 | | * @ctxt: the XSLT transformation context |
1068 | | * @URI: the extension URI |
1069 | | * |
1070 | | * Shutdown an extension module loaded |
1071 | | */ |
1072 | | static void |
1073 | | xsltShutdownCtxtExt(void *payload, void *vctxt, const xmlChar * URI) |
1074 | 0 | { |
1075 | 0 | xsltExtDataPtr data = (xsltExtDataPtr) payload; |
1076 | 0 | xsltTransformContextPtr ctxt = (xsltTransformContextPtr) vctxt; |
1077 | 0 | xsltExtModulePtr module; |
1078 | |
|
1079 | 0 | if ((data == NULL) || (ctxt == NULL) || (URI == NULL)) |
1080 | 0 | return; |
1081 | 0 | module = data->extModule; |
1082 | 0 | if ((module == NULL) || (module->shutdownFunc == NULL)) |
1083 | 0 | return; |
1084 | | |
1085 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
1086 | | xsltGenericDebug(xsltGenericDebugContext, |
1087 | | "Shutting down module : %s\n", URI); |
1088 | | #endif |
1089 | 0 | module->shutdownFunc(ctxt, URI, data->extData); |
1090 | 0 | } |
1091 | | |
1092 | | /** |
1093 | | * xsltShutdownCtxtExts: |
1094 | | * @ctxt: an XSLT transformation context |
1095 | | * |
1096 | | * Shutdown the set of modules loaded |
1097 | | */ |
1098 | | void |
1099 | | xsltShutdownCtxtExts(xsltTransformContextPtr ctxt) |
1100 | 0 | { |
1101 | 0 | if (ctxt == NULL) |
1102 | 0 | return; |
1103 | 0 | if (ctxt->extInfos == NULL) |
1104 | 0 | return; |
1105 | 0 | xmlHashScan(ctxt->extInfos, xsltShutdownCtxtExt, ctxt); |
1106 | 0 | xmlHashFree(ctxt->extInfos, xsltFreeExtDataEntry); |
1107 | 0 | ctxt->extInfos = NULL; |
1108 | 0 | } |
1109 | | |
1110 | | /** |
1111 | | * xsltShutdownExt: |
1112 | | * @data: the registered data for the module |
1113 | | * @ctxt: the XSLT stylesheet |
1114 | | * @URI: the extension URI |
1115 | | * |
1116 | | * Shutdown an extension module loaded |
1117 | | */ |
1118 | | static void |
1119 | | xsltShutdownExt(void *payload, void *vctxt, const xmlChar * URI) |
1120 | 0 | { |
1121 | 0 | xsltExtDataPtr data = (xsltExtDataPtr) payload; |
1122 | 0 | xsltStylesheetPtr style = (xsltStylesheetPtr) vctxt; |
1123 | 0 | xsltExtModulePtr module; |
1124 | |
|
1125 | 0 | if ((data == NULL) || (style == NULL) || (URI == NULL)) |
1126 | 0 | return; |
1127 | 0 | module = data->extModule; |
1128 | 0 | if ((module == NULL) || (module->styleShutdownFunc == NULL)) |
1129 | 0 | return; |
1130 | | |
1131 | | #ifdef WITH_XSLT_DEBUG_EXTENSIONS |
1132 | | xsltGenericDebug(xsltGenericDebugContext, |
1133 | | "Shutting down module : %s\n", URI); |
1134 | | #endif |
1135 | 0 | module->styleShutdownFunc(style, URI, data->extData); |
1136 | | /* |
1137 | | * Don't remove the entry from the hash table here, since |
1138 | | * this will produce segfaults - this fixes bug #340624. |
1139 | | * |
1140 | | * xmlHashRemoveEntry(style->extInfos, URI, xsltFreeExtDataEntry); |
1141 | | */ |
1142 | 0 | } |
1143 | | |
1144 | | /** |
1145 | | * xsltShutdownExts: |
1146 | | * @style: an XSLT stylesheet |
1147 | | * |
1148 | | * Shutdown the set of modules loaded |
1149 | | */ |
1150 | | void |
1151 | | xsltShutdownExts(xsltStylesheetPtr style) |
1152 | 0 | { |
1153 | 0 | if (style == NULL) |
1154 | 0 | return; |
1155 | 0 | if (style->extInfos == NULL) |
1156 | 0 | return; |
1157 | 0 | xmlHashScan(style->extInfos, xsltShutdownExt, style); |
1158 | 0 | xmlHashFree(style->extInfos, xsltFreeExtDataEntry); |
1159 | 0 | style->extInfos = NULL; |
1160 | 0 | } |
1161 | | |
1162 | | /** |
1163 | | * xsltCheckExtPrefix: |
1164 | | * @style: the stylesheet |
1165 | | * @URI: the namespace prefix (possibly NULL) |
1166 | | * |
1167 | | * Check if the given prefix is one of the declared extensions. |
1168 | | * This is intended to be called only at compile-time. |
1169 | | * Called by: |
1170 | | * xsltGetInheritedNsList() (xslt.c) |
1171 | | * xsltParseTemplateContent (xslt.c) |
1172 | | * |
1173 | | * Returns 1 if this is an extension, 0 otherwise |
1174 | | */ |
1175 | | int |
1176 | | xsltCheckExtPrefix(xsltStylesheetPtr style, const xmlChar * URI) |
1177 | 0 | { |
1178 | | #ifdef XSLT_REFACTORED |
1179 | | if ((style == NULL) || (style->compCtxt == NULL) || |
1180 | | (XSLT_CCTXT(style)->inode == NULL) || |
1181 | | (XSLT_CCTXT(style)->inode->extElemNs == NULL)) |
1182 | | return (0); |
1183 | | /* |
1184 | | * Lookup the extension namespaces registered |
1185 | | * at the current node in the stylesheet's tree. |
1186 | | */ |
1187 | | if (XSLT_CCTXT(style)->inode->extElemNs != NULL) { |
1188 | | int i; |
1189 | | xsltPointerListPtr list = XSLT_CCTXT(style)->inode->extElemNs; |
1190 | | |
1191 | | for (i = 0; i < list->number; i++) { |
1192 | | if (xmlStrEqual((const xmlChar *) list->items[i], |
1193 | | URI)) |
1194 | | { |
1195 | | return(1); |
1196 | | } |
1197 | | } |
1198 | | } |
1199 | | #else |
1200 | 0 | xsltExtDefPtr cur; |
1201 | |
|
1202 | 0 | if ((style == NULL) || (style->nsDefs == NULL)) |
1203 | 0 | return (0); |
1204 | 0 | if (URI == NULL) |
1205 | 0 | URI = BAD_CAST "#default"; |
1206 | 0 | cur = (xsltExtDefPtr) style->nsDefs; |
1207 | 0 | while (cur != NULL) { |
1208 | | /* |
1209 | | * NOTE: This was change to work on namespace names rather |
1210 | | * than namespace prefixes. This fixes bug #339583. |
1211 | | * TODO: Consider renaming the field "prefix" of xsltExtDef |
1212 | | * to "href". |
1213 | | */ |
1214 | 0 | if (xmlStrEqual(URI, cur->prefix)) |
1215 | 0 | return (1); |
1216 | 0 | cur = cur->next; |
1217 | 0 | } |
1218 | 0 | #endif |
1219 | 0 | return (0); |
1220 | 0 | } |
1221 | | |
1222 | | /** |
1223 | | * xsltCheckExtURI: |
1224 | | * @style: the stylesheet |
1225 | | * @URI: the namespace URI (possibly NULL) |
1226 | | * |
1227 | | * Check if the given prefix is one of the declared extensions. |
1228 | | * This is intended to be called only at compile-time. |
1229 | | * Called by: |
1230 | | * xsltPrecomputeStylesheet() (xslt.c) |
1231 | | * xsltParseTemplateContent (xslt.c) |
1232 | | * |
1233 | | * Returns 1 if this is an extension, 0 otherwise |
1234 | | */ |
1235 | | int |
1236 | | xsltCheckExtURI(xsltStylesheetPtr style, const xmlChar * URI) |
1237 | 0 | { |
1238 | 0 | xsltExtDefPtr cur; |
1239 | |
|
1240 | 0 | if ((style == NULL) || (style->nsDefs == NULL)) |
1241 | 0 | return (0); |
1242 | 0 | if (URI == NULL) |
1243 | 0 | return (0); |
1244 | 0 | cur = (xsltExtDefPtr) style->nsDefs; |
1245 | 0 | while (cur != NULL) { |
1246 | 0 | if (xmlStrEqual(URI, cur->URI)) |
1247 | 0 | return (1); |
1248 | 0 | cur = cur->next; |
1249 | 0 | } |
1250 | 0 | return (0); |
1251 | 0 | } |
1252 | | |
1253 | | /** |
1254 | | * xsltRegisterExtModuleFull: |
1255 | | * @URI: URI associated to this module |
1256 | | * @initFunc: the module initialization function |
1257 | | * @shutdownFunc: the module shutdown function |
1258 | | * @styleInitFunc: the module initialization function |
1259 | | * @styleShutdownFunc: the module shutdown function |
1260 | | * |
1261 | | * Register an XSLT extension module to the library. |
1262 | | * |
1263 | | * Returns 0 if sucessful, -1 in case of error |
1264 | | */ |
1265 | | int |
1266 | | xsltRegisterExtModuleFull(const xmlChar * URI, |
1267 | | xsltExtInitFunction initFunc, |
1268 | | xsltExtShutdownFunction shutdownFunc, |
1269 | | xsltStyleExtInitFunction styleInitFunc, |
1270 | | xsltStyleExtShutdownFunction styleShutdownFunc) |
1271 | 7.40k | { |
1272 | 7.40k | int ret; |
1273 | 7.40k | xsltExtModulePtr module; |
1274 | | |
1275 | 7.40k | if ((URI == NULL) || (initFunc == NULL)) |
1276 | 0 | return (-1); |
1277 | 7.40k | if (xsltExtensionsHash == NULL) |
1278 | 3.70k | xsltExtensionsHash = xmlHashCreate(10); |
1279 | | |
1280 | 7.40k | if (xsltExtensionsHash == NULL) |
1281 | 0 | return (-1); |
1282 | | |
1283 | 7.40k | xmlMutexLock(xsltExtMutex); |
1284 | | |
1285 | 7.40k | module = xmlHashLookup(xsltExtensionsHash, URI); |
1286 | 7.40k | if (module != NULL) { |
1287 | 0 | if ((module->initFunc == initFunc) && |
1288 | 0 | (module->shutdownFunc == shutdownFunc)) |
1289 | 0 | ret = 0; |
1290 | 0 | else |
1291 | 0 | ret = -1; |
1292 | 0 | goto done; |
1293 | 0 | } |
1294 | 7.40k | module = xsltNewExtModule(initFunc, shutdownFunc, |
1295 | 7.40k | styleInitFunc, styleShutdownFunc); |
1296 | 7.40k | if (module == NULL) { |
1297 | 0 | ret = -1; |
1298 | 0 | goto done; |
1299 | 0 | } |
1300 | 7.40k | ret = xmlHashAddEntry(xsltExtensionsHash, URI, (void *) module); |
1301 | | |
1302 | 7.40k | done: |
1303 | 7.40k | xmlMutexUnlock(xsltExtMutex); |
1304 | 7.40k | return (ret); |
1305 | 7.40k | } |
1306 | | |
1307 | | /** |
1308 | | * xsltRegisterExtModule: |
1309 | | * @URI: URI associated to this module |
1310 | | * @initFunc: the module initialization function |
1311 | | * @shutdownFunc: the module shutdown function |
1312 | | * |
1313 | | * Register an XSLT extension module to the library. |
1314 | | * |
1315 | | * Returns 0 if sucessful, -1 in case of error |
1316 | | */ |
1317 | | int |
1318 | | xsltRegisterExtModule(const xmlChar * URI, |
1319 | | xsltExtInitFunction initFunc, |
1320 | | xsltExtShutdownFunction shutdownFunc) |
1321 | 3.70k | { |
1322 | 3.70k | return xsltRegisterExtModuleFull(URI, initFunc, shutdownFunc, |
1323 | 3.70k | NULL, NULL); |
1324 | 3.70k | } |
1325 | | |
1326 | | /** |
1327 | | * xsltUnregisterExtModule: |
1328 | | * @URI: URI associated to this module |
1329 | | * |
1330 | | * Unregister an XSLT extension module from the library. |
1331 | | * |
1332 | | * Returns 0 if sucessful, -1 in case of error |
1333 | | */ |
1334 | | int |
1335 | | xsltUnregisterExtModule(const xmlChar * URI) |
1336 | 0 | { |
1337 | 0 | int ret; |
1338 | |
|
1339 | 0 | if (URI == NULL) |
1340 | 0 | return (-1); |
1341 | 0 | if (xsltExtensionsHash == NULL) |
1342 | 0 | return (-1); |
1343 | | |
1344 | 0 | xmlMutexLock(xsltExtMutex); |
1345 | |
|
1346 | 0 | ret = xmlHashRemoveEntry(xsltExtensionsHash, URI, xsltFreeExtModuleEntry); |
1347 | |
|
1348 | 0 | xmlMutexUnlock(xsltExtMutex); |
1349 | |
|
1350 | 0 | return (ret); |
1351 | 0 | } |
1352 | | |
1353 | | /** |
1354 | | * xsltUnregisterAllExtModules: |
1355 | | * |
1356 | | * Unregister all the XSLT extension module from the library. |
1357 | | */ |
1358 | | static void |
1359 | | xsltUnregisterAllExtModules(void) |
1360 | 0 | { |
1361 | 0 | if (xsltExtensionsHash == NULL) |
1362 | 0 | return; |
1363 | | |
1364 | 0 | xmlMutexLock(xsltExtMutex); |
1365 | |
|
1366 | 0 | xmlHashFree(xsltExtensionsHash, xsltFreeExtModuleEntry); |
1367 | 0 | xsltExtensionsHash = NULL; |
1368 | |
|
1369 | 0 | xmlMutexUnlock(xsltExtMutex); |
1370 | 0 | } |
1371 | | |
1372 | | /** |
1373 | | * xsltXPathGetTransformContext: |
1374 | | * @ctxt: an XPath transformation context |
1375 | | * |
1376 | | * Provides the XSLT transformation context from the XPath transformation |
1377 | | * context. This is useful when an XPath function in the extension module |
1378 | | * is called by the XPath interpreter and that the XSLT context is needed |
1379 | | * for example to retrieve the associated data pertaining to this XSLT |
1380 | | * transformation. |
1381 | | * |
1382 | | * Returns the XSLT transformation context or NULL in case of error. |
1383 | | */ |
1384 | | xsltTransformContextPtr |
1385 | | xsltXPathGetTransformContext(xmlXPathParserContextPtr ctxt) |
1386 | 9.64M | { |
1387 | 9.64M | if ((ctxt == NULL) || (ctxt->context == NULL)) |
1388 | 0 | return (NULL); |
1389 | 9.64M | return (ctxt->context->extra); |
1390 | 9.64M | } |
1391 | | |
1392 | | /** |
1393 | | * xsltRegisterExtModuleFunction: |
1394 | | * @name: the function name |
1395 | | * @URI: the function namespace URI |
1396 | | * @function: the function callback |
1397 | | * |
1398 | | * Registers an extension module function. |
1399 | | * |
1400 | | * Returns 0 if successful, -1 in case of error. |
1401 | | */ |
1402 | | int |
1403 | | xsltRegisterExtModuleFunction(const xmlChar * name, const xmlChar * URI, |
1404 | | xmlXPathFunction function) |
1405 | 273k | { |
1406 | 273k | if ((name == NULL) || (URI == NULL) || (function == NULL)) |
1407 | 0 | return (-1); |
1408 | | |
1409 | 273k | if (xsltFunctionsHash == NULL) |
1410 | 3.70k | xsltFunctionsHash = xmlHashCreate(10); |
1411 | 273k | if (xsltFunctionsHash == NULL) |
1412 | 0 | return (-1); |
1413 | | |
1414 | 273k | xmlMutexLock(xsltExtMutex); |
1415 | | |
1416 | 273k | xmlHashUpdateEntry2(xsltFunctionsHash, name, URI, |
1417 | 273k | XML_CAST_FPTR(function), NULL); |
1418 | | |
1419 | 273k | xmlMutexUnlock(xsltExtMutex); |
1420 | | |
1421 | 273k | return (0); |
1422 | 273k | } |
1423 | | |
1424 | | /** |
1425 | | * xsltExtModuleFunctionLookup: |
1426 | | * @name: the function name |
1427 | | * @URI: the function namespace URI |
1428 | | * |
1429 | | * Looks up an extension module function |
1430 | | * |
1431 | | * Returns the function if found, NULL otherwise. |
1432 | | */ |
1433 | | xmlXPathFunction |
1434 | | xsltExtModuleFunctionLookup(const xmlChar * name, const xmlChar * URI) |
1435 | 146k | { |
1436 | 146k | xmlXPathFunction ret; |
1437 | | |
1438 | 146k | if ((xsltFunctionsHash == NULL) || (name == NULL) || (URI == NULL)) |
1439 | 0 | return (NULL); |
1440 | | |
1441 | 146k | xmlMutexLock(xsltExtMutex); |
1442 | | |
1443 | 146k | XML_CAST_FPTR(ret) = xmlHashLookup2(xsltFunctionsHash, name, URI); |
1444 | | |
1445 | 146k | xmlMutexUnlock(xsltExtMutex); |
1446 | | |
1447 | | /* if lookup fails, attempt a dynamic load on supported platforms */ |
1448 | 146k | if (NULL == ret) { |
1449 | 2.88k | if (!xsltExtModuleRegisterDynamic(URI)) { |
1450 | 0 | xmlMutexLock(xsltExtMutex); |
1451 | |
|
1452 | 0 | XML_CAST_FPTR(ret) = |
1453 | 0 | xmlHashLookup2(xsltFunctionsHash, name, URI); |
1454 | |
|
1455 | 0 | xmlMutexUnlock(xsltExtMutex); |
1456 | 0 | } |
1457 | 2.88k | } |
1458 | | |
1459 | 146k | return ret; |
1460 | 146k | } |
1461 | | |
1462 | | /** |
1463 | | * xsltUnregisterExtModuleFunction: |
1464 | | * @name: the function name |
1465 | | * @URI: the function namespace URI |
1466 | | * |
1467 | | * Unregisters an extension module function |
1468 | | * |
1469 | | * Returns 0 if successful, -1 in case of error. |
1470 | | */ |
1471 | | int |
1472 | | xsltUnregisterExtModuleFunction(const xmlChar * name, const xmlChar * URI) |
1473 | 0 | { |
1474 | 0 | int ret; |
1475 | |
|
1476 | 0 | if ((xsltFunctionsHash == NULL) || (name == NULL) || (URI == NULL)) |
1477 | 0 | return (-1); |
1478 | | |
1479 | 0 | xmlMutexLock(xsltExtMutex); |
1480 | |
|
1481 | 0 | ret = xmlHashRemoveEntry2(xsltFunctionsHash, name, URI, NULL); |
1482 | |
|
1483 | 0 | xmlMutexUnlock(xsltExtMutex); |
1484 | |
|
1485 | 0 | return(ret); |
1486 | 0 | } |
1487 | | |
1488 | | /** |
1489 | | * xsltUnregisterAllExtModuleFunction: |
1490 | | * |
1491 | | * Unregisters all extension module function |
1492 | | */ |
1493 | | static void |
1494 | | xsltUnregisterAllExtModuleFunction(void) |
1495 | 0 | { |
1496 | 0 | xmlMutexLock(xsltExtMutex); |
1497 | |
|
1498 | 0 | xmlHashFree(xsltFunctionsHash, NULL); |
1499 | 0 | xsltFunctionsHash = NULL; |
1500 | |
|
1501 | 0 | xmlMutexUnlock(xsltExtMutex); |
1502 | 0 | } |
1503 | | |
1504 | | |
1505 | | static void |
1506 | 0 | xsltFreeElemPreComp(xsltElemPreCompPtr comp) { |
1507 | 0 | xmlFree(comp); |
1508 | 0 | } |
1509 | | |
1510 | | /** |
1511 | | * xsltNewElemPreComp: |
1512 | | * @style: the XSLT stylesheet |
1513 | | * @inst: the element node |
1514 | | * @function: the transform function |
1515 | | * |
1516 | | * Creates and initializes an #xsltElemPreComp |
1517 | | * |
1518 | | * Returns the new and initialized #xsltElemPreComp |
1519 | | */ |
1520 | | xsltElemPreCompPtr |
1521 | | xsltNewElemPreComp(xsltStylesheetPtr style, xmlNodePtr inst, |
1522 | | xsltTransformFunction function) |
1523 | 0 | { |
1524 | 0 | xsltElemPreCompPtr cur; |
1525 | |
|
1526 | 0 | cur = (xsltElemPreCompPtr) xmlMalloc(sizeof(xsltElemPreComp)); |
1527 | 0 | if (cur == NULL) { |
1528 | 0 | xsltTransformError(NULL, style, NULL, |
1529 | 0 | "xsltNewExtElement : malloc failed\n"); |
1530 | 0 | return (NULL); |
1531 | 0 | } |
1532 | 0 | memset(cur, 0, sizeof(xsltElemPreComp)); |
1533 | |
|
1534 | 0 | xsltInitElemPreComp(cur, style, inst, function, xsltFreeElemPreComp); |
1535 | |
|
1536 | 0 | return (cur); |
1537 | 0 | } |
1538 | | |
1539 | | /** |
1540 | | * xsltInitElemPreComp: |
1541 | | * @comp: an #xsltElemPreComp (or generally a derived structure) |
1542 | | * @style: the XSLT stylesheet |
1543 | | * @inst: the element node |
1544 | | * @function: the transform function |
1545 | | * @freeFunc: the @comp deallocator |
1546 | | * |
1547 | | * Initializes an existing #xsltElemPreComp structure. This is usefull |
1548 | | * when extending an #xsltElemPreComp to store precomputed data. |
1549 | | * This function MUST be called on any extension element precomputed |
1550 | | * data struct. |
1551 | | */ |
1552 | | void |
1553 | | xsltInitElemPreComp(xsltElemPreCompPtr comp, xsltStylesheetPtr style, |
1554 | | xmlNodePtr inst, xsltTransformFunction function, |
1555 | | xsltElemPreCompDeallocator freeFunc) |
1556 | 0 | { |
1557 | 0 | comp->type = XSLT_FUNC_EXTENSION; |
1558 | 0 | comp->func = function; |
1559 | 0 | comp->inst = inst; |
1560 | 0 | comp->free = freeFunc; |
1561 | |
|
1562 | 0 | comp->next = style->preComps; |
1563 | 0 | style->preComps = comp; |
1564 | 0 | } |
1565 | | |
1566 | | /** |
1567 | | * xsltPreComputeExtModuleElement: |
1568 | | * @style: the stylesheet |
1569 | | * @inst: the element node |
1570 | | * |
1571 | | * Precomputes an extension module element |
1572 | | * |
1573 | | * Returns the precomputed data |
1574 | | */ |
1575 | | xsltElemPreCompPtr |
1576 | | xsltPreComputeExtModuleElement(xsltStylesheetPtr style, xmlNodePtr inst) |
1577 | 0 | { |
1578 | 0 | xsltExtElementPtr ext; |
1579 | 0 | xsltElemPreCompPtr comp = NULL; |
1580 | |
|
1581 | 0 | if ((style == NULL) || (inst == NULL) || |
1582 | 0 | (inst->type != XML_ELEMENT_NODE) || (inst->ns == NULL)) |
1583 | 0 | return (NULL); |
1584 | | |
1585 | 0 | xmlMutexLock(xsltExtMutex); |
1586 | |
|
1587 | 0 | ext = (xsltExtElementPtr) |
1588 | 0 | xmlHashLookup2(xsltElementsHash, inst->name, inst->ns->href); |
1589 | |
|
1590 | 0 | xmlMutexUnlock(xsltExtMutex); |
1591 | | |
1592 | | /* |
1593 | | * EXT TODO: Now what? |
1594 | | */ |
1595 | 0 | if (ext == NULL) |
1596 | 0 | return (NULL); |
1597 | | |
1598 | 0 | if (ext->precomp != NULL) { |
1599 | | /* |
1600 | | * REVISIT TODO: Check if the text below is correct. |
1601 | | * This will return a xsltElemPreComp structure or NULL. |
1602 | | * 1) If the the author of the extension needs a |
1603 | | * custom structure to hold the specific values of |
1604 | | * this extension, he will derive a structure based on |
1605 | | * xsltElemPreComp; thus we obviously *cannot* refactor |
1606 | | * the xsltElemPreComp structure, since all already derived |
1607 | | * user-defined strucures will break. |
1608 | | * Example: For the extension xsl:document, |
1609 | | * in xsltDocumentComp() (preproc.c), the structure |
1610 | | * xsltStyleItemDocument is allocated, filled with |
1611 | | * specific values and returned. |
1612 | | * 2) If the author needs no values to be stored in |
1613 | | * this structure, then he'll return NULL; |
1614 | | */ |
1615 | 0 | comp = ext->precomp(style, inst, ext->transform); |
1616 | 0 | } |
1617 | 0 | if (comp == NULL) { |
1618 | | /* |
1619 | | * Default creation of a xsltElemPreComp structure, if |
1620 | | * the author of this extension did not create a custom |
1621 | | * structure. |
1622 | | */ |
1623 | 0 | comp = xsltNewElemPreComp(style, inst, ext->transform); |
1624 | 0 | } |
1625 | |
|
1626 | 0 | return (comp); |
1627 | 0 | } |
1628 | | |
1629 | | /** |
1630 | | * xsltRegisterExtModuleElement: |
1631 | | * @name: the element name |
1632 | | * @URI: the element namespace URI |
1633 | | * @precomp: the pre-computation callback |
1634 | | * @transform: the transformation callback |
1635 | | * |
1636 | | * Registers an extension module element. |
1637 | | * |
1638 | | * Returns 0 if successful, -1 in case of error. |
1639 | | */ |
1640 | | int |
1641 | | xsltRegisterExtModuleElement(const xmlChar * name, const xmlChar * URI, |
1642 | | xsltPreComputeFunction precomp, |
1643 | | xsltTransformFunction transform) |
1644 | 25.9k | { |
1645 | 25.9k | int ret = 0; |
1646 | | |
1647 | 25.9k | xsltExtElementPtr ext; |
1648 | | |
1649 | 25.9k | if ((name == NULL) || (URI == NULL) || (transform == NULL)) |
1650 | 0 | return (-1); |
1651 | | |
1652 | 25.9k | if (xsltElementsHash == NULL) |
1653 | 3.70k | xsltElementsHash = xmlHashCreate(10); |
1654 | 25.9k | if (xsltElementsHash == NULL) |
1655 | 0 | return (-1); |
1656 | | |
1657 | 25.9k | xmlMutexLock(xsltExtMutex); |
1658 | | |
1659 | 25.9k | ext = xsltNewExtElement(precomp, transform); |
1660 | 25.9k | if (ext == NULL) { |
1661 | 0 | ret = -1; |
1662 | 0 | goto done; |
1663 | 0 | } |
1664 | | |
1665 | 25.9k | xmlHashUpdateEntry2(xsltElementsHash, name, URI, (void *) ext, |
1666 | 25.9k | xsltFreeExtElementEntry); |
1667 | | |
1668 | 25.9k | done: |
1669 | 25.9k | xmlMutexUnlock(xsltExtMutex); |
1670 | | |
1671 | 25.9k | return (ret); |
1672 | 25.9k | } |
1673 | | |
1674 | | /** |
1675 | | * xsltExtElementLookup: |
1676 | | * @ctxt: an XSLT process context |
1677 | | * @name: the element name |
1678 | | * @URI: the element namespace URI |
1679 | | * |
1680 | | * Looks up an extension element. @ctxt can be NULL to search only in |
1681 | | * module elements. |
1682 | | * |
1683 | | * Returns the element callback or NULL if not found |
1684 | | */ |
1685 | | xsltTransformFunction |
1686 | | xsltExtElementLookup(xsltTransformContextPtr ctxt, |
1687 | | const xmlChar * name, const xmlChar * URI) |
1688 | 73.1k | { |
1689 | 73.1k | xsltTransformFunction ret; |
1690 | | |
1691 | 73.1k | if ((name == NULL) || (URI == NULL)) |
1692 | 72.1k | return (NULL); |
1693 | | |
1694 | 999 | if ((ctxt != NULL) && (ctxt->extElements != NULL)) { |
1695 | 999 | XML_CAST_FPTR(ret) = xmlHashLookup2(ctxt->extElements, name, URI); |
1696 | 999 | if (ret != NULL) { |
1697 | 0 | return(ret); |
1698 | 0 | } |
1699 | 999 | } |
1700 | | |
1701 | 999 | ret = xsltExtModuleElementLookup(name, URI); |
1702 | | |
1703 | 999 | return (ret); |
1704 | 999 | } |
1705 | | |
1706 | | /** |
1707 | | * xsltExtModuleElementLookup: |
1708 | | * @name: the element name |
1709 | | * @URI: the element namespace URI |
1710 | | * |
1711 | | * Looks up an extension module element |
1712 | | * |
1713 | | * Returns the callback function if found, NULL otherwise. |
1714 | | */ |
1715 | | xsltTransformFunction |
1716 | | xsltExtModuleElementLookup(const xmlChar * name, const xmlChar * URI) |
1717 | 999 | { |
1718 | 999 | xsltExtElementPtr ext; |
1719 | | |
1720 | 999 | if ((xsltElementsHash == NULL) || (name == NULL) || (URI == NULL)) |
1721 | 0 | return (NULL); |
1722 | | |
1723 | 999 | xmlMutexLock(xsltExtMutex); |
1724 | | |
1725 | 999 | ext = (xsltExtElementPtr) xmlHashLookup2(xsltElementsHash, name, URI); |
1726 | | |
1727 | 999 | xmlMutexUnlock(xsltExtMutex); |
1728 | | |
1729 | | /* |
1730 | | * if function lookup fails, attempt a dynamic load on |
1731 | | * supported platforms |
1732 | | */ |
1733 | 999 | if (NULL == ext) { |
1734 | 979 | if (!xsltExtModuleRegisterDynamic(URI)) { |
1735 | 0 | xmlMutexLock(xsltExtMutex); |
1736 | |
|
1737 | 0 | ext = (xsltExtElementPtr) |
1738 | 0 | xmlHashLookup2(xsltElementsHash, name, URI); |
1739 | |
|
1740 | 0 | xmlMutexUnlock(xsltExtMutex); |
1741 | 0 | } |
1742 | 979 | } |
1743 | | |
1744 | 999 | if (ext == NULL) |
1745 | 979 | return (NULL); |
1746 | 20 | return (ext->transform); |
1747 | 999 | } |
1748 | | |
1749 | | /** |
1750 | | * xsltExtModuleElementPreComputeLookup: |
1751 | | * @name: the element name |
1752 | | * @URI: the element namespace URI |
1753 | | * |
1754 | | * Looks up an extension module element pre-computation function |
1755 | | * |
1756 | | * Returns the callback function if found, NULL otherwise. |
1757 | | */ |
1758 | | xsltPreComputeFunction |
1759 | | xsltExtModuleElementPreComputeLookup(const xmlChar * name, |
1760 | | const xmlChar * URI) |
1761 | 0 | { |
1762 | 0 | xsltExtElementPtr ext; |
1763 | |
|
1764 | 0 | if ((xsltElementsHash == NULL) || (name == NULL) || (URI == NULL)) |
1765 | 0 | return (NULL); |
1766 | | |
1767 | 0 | xmlMutexLock(xsltExtMutex); |
1768 | |
|
1769 | 0 | ext = (xsltExtElementPtr) xmlHashLookup2(xsltElementsHash, name, URI); |
1770 | |
|
1771 | 0 | xmlMutexUnlock(xsltExtMutex); |
1772 | |
|
1773 | 0 | if (ext == NULL) { |
1774 | 0 | if (!xsltExtModuleRegisterDynamic(URI)) { |
1775 | 0 | xmlMutexLock(xsltExtMutex); |
1776 | |
|
1777 | 0 | ext = (xsltExtElementPtr) |
1778 | 0 | xmlHashLookup2(xsltElementsHash, name, URI); |
1779 | |
|
1780 | 0 | xmlMutexUnlock(xsltExtMutex); |
1781 | 0 | } |
1782 | 0 | } |
1783 | |
|
1784 | 0 | if (ext == NULL) |
1785 | 0 | return (NULL); |
1786 | 0 | return (ext->precomp); |
1787 | 0 | } |
1788 | | |
1789 | | /** |
1790 | | * xsltUnregisterExtModuleElement: |
1791 | | * @name: the element name |
1792 | | * @URI: the element namespace URI |
1793 | | * |
1794 | | * Unregisters an extension module element |
1795 | | * |
1796 | | * Returns 0 if successful, -1 in case of error. |
1797 | | */ |
1798 | | int |
1799 | | xsltUnregisterExtModuleElement(const xmlChar * name, const xmlChar * URI) |
1800 | 0 | { |
1801 | 0 | int ret; |
1802 | |
|
1803 | 0 | if ((xsltElementsHash == NULL) || (name == NULL) || (URI == NULL)) |
1804 | 0 | return (-1); |
1805 | | |
1806 | 0 | xmlMutexLock(xsltExtMutex); |
1807 | |
|
1808 | 0 | ret = xmlHashRemoveEntry2(xsltElementsHash, name, URI, |
1809 | 0 | xsltFreeExtElementEntry); |
1810 | |
|
1811 | 0 | xmlMutexUnlock(xsltExtMutex); |
1812 | |
|
1813 | 0 | return(ret); |
1814 | 0 | } |
1815 | | |
1816 | | /** |
1817 | | * xsltUnregisterAllExtModuleElement: |
1818 | | * |
1819 | | * Unregisters all extension module element |
1820 | | */ |
1821 | | static void |
1822 | | xsltUnregisterAllExtModuleElement(void) |
1823 | 0 | { |
1824 | 0 | xmlMutexLock(xsltExtMutex); |
1825 | |
|
1826 | 0 | xmlHashFree(xsltElementsHash, xsltFreeExtElementEntry); |
1827 | 0 | xsltElementsHash = NULL; |
1828 | |
|
1829 | 0 | xmlMutexUnlock(xsltExtMutex); |
1830 | 0 | } |
1831 | | |
1832 | | /** |
1833 | | * xsltRegisterExtModuleTopLevel: |
1834 | | * @name: the top-level element name |
1835 | | * @URI: the top-level element namespace URI |
1836 | | * @function: the top-level element callback |
1837 | | * |
1838 | | * Registers an extension module top-level element. |
1839 | | * |
1840 | | * Returns 0 if successful, -1 in case of error. |
1841 | | */ |
1842 | | int |
1843 | | xsltRegisterExtModuleTopLevel(const xmlChar * name, const xmlChar * URI, |
1844 | | xsltTopLevelFunction function) |
1845 | 3.70k | { |
1846 | 3.70k | if ((name == NULL) || (URI == NULL) || (function == NULL)) |
1847 | 0 | return (-1); |
1848 | | |
1849 | 3.70k | if (xsltTopLevelsHash == NULL) |
1850 | 3.70k | xsltTopLevelsHash = xmlHashCreate(10); |
1851 | 3.70k | if (xsltTopLevelsHash == NULL) |
1852 | 0 | return (-1); |
1853 | | |
1854 | 3.70k | xmlMutexLock(xsltExtMutex); |
1855 | | |
1856 | 3.70k | xmlHashUpdateEntry2(xsltTopLevelsHash, name, URI, |
1857 | 3.70k | XML_CAST_FPTR(function), NULL); |
1858 | | |
1859 | 3.70k | xmlMutexUnlock(xsltExtMutex); |
1860 | | |
1861 | 3.70k | return (0); |
1862 | 3.70k | } |
1863 | | |
1864 | | /** |
1865 | | * xsltExtModuleTopLevelLookup: |
1866 | | * @name: the top-level element name |
1867 | | * @URI: the top-level element namespace URI |
1868 | | * |
1869 | | * Looks up an extension module top-level element |
1870 | | * |
1871 | | * Returns the callback function if found, NULL otherwise. |
1872 | | */ |
1873 | | xsltTopLevelFunction |
1874 | | xsltExtModuleTopLevelLookup(const xmlChar * name, const xmlChar * URI) |
1875 | 0 | { |
1876 | 0 | xsltTopLevelFunction ret; |
1877 | |
|
1878 | 0 | if ((xsltTopLevelsHash == NULL) || (name == NULL) || (URI == NULL)) |
1879 | 0 | return (NULL); |
1880 | | |
1881 | 0 | xmlMutexLock(xsltExtMutex); |
1882 | |
|
1883 | 0 | XML_CAST_FPTR(ret) = xmlHashLookup2(xsltTopLevelsHash, name, URI); |
1884 | |
|
1885 | 0 | xmlMutexUnlock(xsltExtMutex); |
1886 | | |
1887 | | /* if lookup fails, attempt a dynamic load on supported platforms */ |
1888 | 0 | if (NULL == ret) { |
1889 | 0 | if (!xsltExtModuleRegisterDynamic(URI)) { |
1890 | 0 | xmlMutexLock(xsltExtMutex); |
1891 | |
|
1892 | 0 | XML_CAST_FPTR(ret) = xmlHashLookup2(xsltTopLevelsHash, name, URI); |
1893 | |
|
1894 | 0 | xmlMutexUnlock(xsltExtMutex); |
1895 | 0 | } |
1896 | 0 | } |
1897 | |
|
1898 | 0 | return (ret); |
1899 | 0 | } |
1900 | | |
1901 | | /** |
1902 | | * xsltUnregisterExtModuleTopLevel: |
1903 | | * @name: the top-level element name |
1904 | | * @URI: the top-level element namespace URI |
1905 | | * |
1906 | | * Unregisters an extension module top-level element |
1907 | | * |
1908 | | * Returns 0 if successful, -1 in case of error. |
1909 | | */ |
1910 | | int |
1911 | | xsltUnregisterExtModuleTopLevel(const xmlChar * name, const xmlChar * URI) |
1912 | 0 | { |
1913 | 0 | int ret; |
1914 | |
|
1915 | 0 | if ((xsltTopLevelsHash == NULL) || (name == NULL) || (URI == NULL)) |
1916 | 0 | return (-1); |
1917 | | |
1918 | 0 | xmlMutexLock(xsltExtMutex); |
1919 | |
|
1920 | 0 | ret = xmlHashRemoveEntry2(xsltTopLevelsHash, name, URI, NULL); |
1921 | |
|
1922 | 0 | xmlMutexUnlock(xsltExtMutex); |
1923 | |
|
1924 | 0 | return(ret); |
1925 | 0 | } |
1926 | | |
1927 | | /** |
1928 | | * xsltUnregisterAllExtModuleTopLevel: |
1929 | | * |
1930 | | * Unregisters all extension module function |
1931 | | */ |
1932 | | static void |
1933 | | xsltUnregisterAllExtModuleTopLevel(void) |
1934 | 0 | { |
1935 | 0 | xmlMutexLock(xsltExtMutex); |
1936 | |
|
1937 | 0 | xmlHashFree(xsltTopLevelsHash, NULL); |
1938 | 0 | xsltTopLevelsHash = NULL; |
1939 | |
|
1940 | 0 | xmlMutexUnlock(xsltExtMutex); |
1941 | 0 | } |
1942 | | |
1943 | | /** |
1944 | | * xsltGetExtInfo: |
1945 | | * @style: pointer to a stylesheet |
1946 | | * @URI: the namespace URI desired |
1947 | | * |
1948 | | * looks up URI in extInfos of the stylesheet |
1949 | | * |
1950 | | * returns a pointer to the hash table if found, else NULL |
1951 | | */ |
1952 | | xmlHashTablePtr |
1953 | | xsltGetExtInfo(xsltStylesheetPtr style, const xmlChar * URI) |
1954 | 0 | { |
1955 | 0 | xsltExtDataPtr data; |
1956 | | |
1957 | | /* |
1958 | | * TODO: Why do we have a return type of xmlHashTablePtr? |
1959 | | * Is the user-allocated data for extension modules expected |
1960 | | * to be a xmlHashTablePtr only? Or is this intended for |
1961 | | * the EXSLT module only? |
1962 | | */ |
1963 | |
|
1964 | 0 | if (style != NULL && style->extInfos != NULL) { |
1965 | 0 | data = xmlHashLookup(style->extInfos, URI); |
1966 | 0 | if (data != NULL && data->extData != NULL) |
1967 | 0 | return data->extData; |
1968 | 0 | } |
1969 | 0 | return NULL; |
1970 | 0 | } |
1971 | | |
1972 | | /************************************************************************ |
1973 | | * * |
1974 | | * Test of the extension module API * |
1975 | | * * |
1976 | | ************************************************************************/ |
1977 | | |
1978 | | static xmlChar *testData = NULL; |
1979 | | static xmlChar *testStyleData = NULL; |
1980 | | |
1981 | | /** |
1982 | | * xsltExtFunctionTest: |
1983 | | * @ctxt: the XPath Parser context |
1984 | | * @nargs: the number of arguments |
1985 | | * |
1986 | | * function libxslt:test() for testing the extensions support. |
1987 | | */ |
1988 | | static void |
1989 | | xsltExtFunctionTest(xmlXPathParserContextPtr ctxt, |
1990 | | int nargs ATTRIBUTE_UNUSED) |
1991 | 0 | { |
1992 | 0 | xsltTransformContextPtr tctxt; |
1993 | 0 | void *data = NULL; |
1994 | |
|
1995 | 0 | tctxt = xsltXPathGetTransformContext(ctxt); |
1996 | |
|
1997 | 0 | if (testData == NULL) { |
1998 | 0 | xsltGenericDebug(xsltGenericDebugContext, |
1999 | 0 | "xsltExtFunctionTest: not initialized," |
2000 | 0 | " calling xsltGetExtData\n"); |
2001 | 0 | data = xsltGetExtData(tctxt, (const xmlChar *) XSLT_DEFAULT_URL); |
2002 | 0 | if (data == NULL) { |
2003 | 0 | xsltTransformError(tctxt, NULL, NULL, |
2004 | 0 | "xsltExtElementTest: not initialized\n"); |
2005 | 0 | return; |
2006 | 0 | } |
2007 | 0 | } |
2008 | 0 | if (tctxt == NULL) { |
2009 | 0 | xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL, |
2010 | 0 | "xsltExtFunctionTest: failed to get the transformation context\n"); |
2011 | 0 | return; |
2012 | 0 | } |
2013 | 0 | if (data == NULL) |
2014 | 0 | data = xsltGetExtData(tctxt, (const xmlChar *) XSLT_DEFAULT_URL); |
2015 | 0 | if (data == NULL) { |
2016 | 0 | xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL, |
2017 | 0 | "xsltExtFunctionTest: failed to get module data\n"); |
2018 | 0 | return; |
2019 | 0 | } |
2020 | 0 | if (data != testData) { |
2021 | 0 | xsltTransformError(xsltXPathGetTransformContext(ctxt), NULL, NULL, |
2022 | 0 | "xsltExtFunctionTest: got wrong module data\n"); |
2023 | 0 | return; |
2024 | 0 | } |
2025 | | #ifdef WITH_XSLT_DEBUG_FUNCTION |
2026 | | xsltGenericDebug(xsltGenericDebugContext, |
2027 | | "libxslt:test() called with %d args\n", nargs); |
2028 | | #endif |
2029 | 0 | } |
2030 | | |
2031 | | /** |
2032 | | * xsltExtElementPreCompTest: |
2033 | | * @style: the stylesheet |
2034 | | * @inst: the instruction in the stylesheet |
2035 | | * |
2036 | | * Process a libxslt:test node |
2037 | | */ |
2038 | | static xsltElemPreCompPtr |
2039 | | xsltExtElementPreCompTest(xsltStylesheetPtr style, xmlNodePtr inst, |
2040 | | xsltTransformFunction function) |
2041 | 0 | { |
2042 | 0 | xsltElemPreCompPtr ret; |
2043 | |
|
2044 | 0 | if (style == NULL) { |
2045 | 0 | xsltTransformError(NULL, NULL, inst, |
2046 | 0 | "xsltExtElementTest: no transformation context\n"); |
2047 | 0 | return (NULL); |
2048 | 0 | } |
2049 | 0 | if (testStyleData == NULL) { |
2050 | 0 | xsltGenericDebug(xsltGenericDebugContext, |
2051 | 0 | "xsltExtElementPreCompTest: not initialized," |
2052 | 0 | " calling xsltStyleGetExtData\n"); |
2053 | 0 | xsltStyleGetExtData(style, (const xmlChar *) XSLT_DEFAULT_URL); |
2054 | 0 | if (testStyleData == NULL) { |
2055 | 0 | xsltTransformError(NULL, style, inst, |
2056 | 0 | "xsltExtElementPreCompTest: not initialized\n"); |
2057 | 0 | if (style != NULL) |
2058 | 0 | style->errors++; |
2059 | 0 | return (NULL); |
2060 | 0 | } |
2061 | 0 | } |
2062 | 0 | if (inst == NULL) { |
2063 | 0 | xsltTransformError(NULL, style, inst, |
2064 | 0 | "xsltExtElementPreCompTest: no instruction\n"); |
2065 | 0 | if (style != NULL) |
2066 | 0 | style->errors++; |
2067 | 0 | return (NULL); |
2068 | 0 | } |
2069 | 0 | ret = xsltNewElemPreComp(style, inst, function); |
2070 | 0 | return (ret); |
2071 | 0 | } |
2072 | | |
2073 | | /** |
2074 | | * xsltExtElementTest: |
2075 | | * @ctxt: an XSLT processing context |
2076 | | * @node: The current node |
2077 | | * @inst: the instruction in the stylesheet |
2078 | | * @comp: precomputed information |
2079 | | * |
2080 | | * Process a libxslt:test node |
2081 | | */ |
2082 | | static void |
2083 | | xsltExtElementTest(xsltTransformContextPtr ctxt, xmlNodePtr node, |
2084 | | xmlNodePtr inst, |
2085 | | xsltElemPreCompPtr comp ATTRIBUTE_UNUSED) |
2086 | 0 | { |
2087 | 0 | xmlNodePtr commentNode; |
2088 | |
|
2089 | 0 | if (testData == NULL) { |
2090 | 0 | xsltGenericDebug(xsltGenericDebugContext, |
2091 | 0 | "xsltExtElementTest: not initialized," |
2092 | 0 | " calling xsltGetExtData\n"); |
2093 | 0 | xsltGetExtData(ctxt, (const xmlChar *) XSLT_DEFAULT_URL); |
2094 | 0 | if (testData == NULL) { |
2095 | 0 | xsltTransformError(ctxt, NULL, inst, |
2096 | 0 | "xsltExtElementTest: not initialized\n"); |
2097 | 0 | return; |
2098 | 0 | } |
2099 | 0 | } |
2100 | 0 | if (ctxt == NULL) { |
2101 | 0 | xsltTransformError(ctxt, NULL, inst, |
2102 | 0 | "xsltExtElementTest: no transformation context\n"); |
2103 | 0 | return; |
2104 | 0 | } |
2105 | 0 | if (node == NULL) { |
2106 | 0 | xsltTransformError(ctxt, NULL, inst, |
2107 | 0 | "xsltExtElementTest: no current node\n"); |
2108 | 0 | return; |
2109 | 0 | } |
2110 | 0 | if (inst == NULL) { |
2111 | 0 | xsltTransformError(ctxt, NULL, inst, |
2112 | 0 | "xsltExtElementTest: no instruction\n"); |
2113 | 0 | return; |
2114 | 0 | } |
2115 | 0 | if (ctxt->insert == NULL) { |
2116 | 0 | xsltTransformError(ctxt, NULL, inst, |
2117 | 0 | "xsltExtElementTest: no insertion point\n"); |
2118 | 0 | return; |
2119 | 0 | } |
2120 | 0 | commentNode = xmlNewComment((const xmlChar *) |
2121 | 0 | "libxslt:test element test worked"); |
2122 | 0 | xmlAddChild(ctxt->insert, commentNode); |
2123 | 0 | } |
2124 | | |
2125 | | /** |
2126 | | * xsltExtInitTest: |
2127 | | * @ctxt: an XSLT transformation context |
2128 | | * @URI: the namespace URI for the extension |
2129 | | * |
2130 | | * A function called at initialization time of an XSLT extension module |
2131 | | * |
2132 | | * Returns a pointer to the module specific data for this transformation |
2133 | | */ |
2134 | | static void * |
2135 | | xsltExtInitTest(xsltTransformContextPtr ctxt, const xmlChar * URI) |
2136 | 0 | { |
2137 | 0 | if (testStyleData == NULL) { |
2138 | 0 | xsltGenericDebug(xsltGenericErrorContext, |
2139 | 0 | "xsltExtInitTest: not initialized," |
2140 | 0 | " calling xsltStyleGetExtData\n"); |
2141 | 0 | testStyleData = xsltStyleGetExtData(ctxt->style, URI); |
2142 | 0 | if (testStyleData == NULL) { |
2143 | 0 | xsltTransformError(ctxt, NULL, NULL, |
2144 | 0 | "xsltExtInitTest: not initialized\n"); |
2145 | 0 | return (NULL); |
2146 | 0 | } |
2147 | 0 | } |
2148 | 0 | if (testData != NULL) { |
2149 | 0 | xsltTransformError(ctxt, NULL, NULL, |
2150 | 0 | "xsltExtInitTest: already initialized\n"); |
2151 | 0 | return (NULL); |
2152 | 0 | } |
2153 | 0 | testData = (void *) "test data"; |
2154 | 0 | xsltGenericDebug(xsltGenericDebugContext, |
2155 | 0 | "Registered test module : %s\n", URI); |
2156 | 0 | return (testData); |
2157 | 0 | } |
2158 | | |
2159 | | |
2160 | | /** |
2161 | | * xsltExtShutdownTest: |
2162 | | * @ctxt: an XSLT transformation context |
2163 | | * @URI: the namespace URI for the extension |
2164 | | * @data: the data associated to this module |
2165 | | * |
2166 | | * A function called at shutdown time of an XSLT extension module |
2167 | | */ |
2168 | | static void |
2169 | | xsltExtShutdownTest(xsltTransformContextPtr ctxt, |
2170 | | const xmlChar * URI, void *data) |
2171 | 0 | { |
2172 | 0 | if (testData == NULL) { |
2173 | 0 | xsltTransformError(ctxt, NULL, NULL, |
2174 | 0 | "xsltExtShutdownTest: not initialized\n"); |
2175 | 0 | return; |
2176 | 0 | } |
2177 | 0 | if (data != testData) { |
2178 | 0 | xsltTransformError(ctxt, NULL, NULL, |
2179 | 0 | "xsltExtShutdownTest: wrong data\n"); |
2180 | 0 | } |
2181 | 0 | testData = NULL; |
2182 | 0 | xsltGenericDebug(xsltGenericDebugContext, |
2183 | 0 | "Unregistered test module : %s\n", URI); |
2184 | 0 | } |
2185 | | |
2186 | | /** |
2187 | | * xsltExtStyleInitTest: |
2188 | | * @style: an XSLT stylesheet |
2189 | | * @URI: the namespace URI for the extension |
2190 | | * |
2191 | | * A function called at initialization time of an XSLT extension module |
2192 | | * |
2193 | | * Returns a pointer to the module specific data for this transformation |
2194 | | */ |
2195 | | static void * |
2196 | | xsltExtStyleInitTest(xsltStylesheetPtr style ATTRIBUTE_UNUSED, |
2197 | | const xmlChar * URI) |
2198 | 0 | { |
2199 | 0 | if (testStyleData != NULL) { |
2200 | 0 | xsltTransformError(NULL, NULL, NULL, |
2201 | 0 | "xsltExtInitTest: already initialized\n"); |
2202 | 0 | return (NULL); |
2203 | 0 | } |
2204 | 0 | testStyleData = (void *) "test data"; |
2205 | 0 | xsltGenericDebug(xsltGenericDebugContext, |
2206 | 0 | "Registered test module : %s\n", URI); |
2207 | 0 | return (testStyleData); |
2208 | 0 | } |
2209 | | |
2210 | | |
2211 | | /** |
2212 | | * xsltExtStyleShutdownTest: |
2213 | | * @style: an XSLT stylesheet |
2214 | | * @URI: the namespace URI for the extension |
2215 | | * @data: the data associated to this module |
2216 | | * |
2217 | | * A function called at shutdown time of an XSLT extension module |
2218 | | */ |
2219 | | static void |
2220 | | xsltExtStyleShutdownTest(xsltStylesheetPtr style ATTRIBUTE_UNUSED, |
2221 | | const xmlChar * URI, void *data) |
2222 | 0 | { |
2223 | 0 | if (testStyleData == NULL) { |
2224 | 0 | xsltGenericError(xsltGenericErrorContext, |
2225 | 0 | "xsltExtShutdownTest: not initialized\n"); |
2226 | 0 | return; |
2227 | 0 | } |
2228 | 0 | if (data != testStyleData) { |
2229 | 0 | xsltTransformError(NULL, NULL, NULL, |
2230 | 0 | "xsltExtShutdownTest: wrong data\n"); |
2231 | 0 | } |
2232 | 0 | testStyleData = NULL; |
2233 | 0 | xsltGenericDebug(xsltGenericDebugContext, |
2234 | 0 | "Unregistered test module : %s\n", URI); |
2235 | 0 | } |
2236 | | |
2237 | | /** |
2238 | | * xsltRegisterTestModule: |
2239 | | * |
2240 | | * Registers the test module |
2241 | | */ |
2242 | | void |
2243 | | xsltRegisterTestModule(void) |
2244 | 0 | { |
2245 | 0 | xsltInitGlobals(); |
2246 | 0 | xsltRegisterExtModuleFull((const xmlChar *) XSLT_DEFAULT_URL, |
2247 | 0 | xsltExtInitTest, xsltExtShutdownTest, |
2248 | 0 | xsltExtStyleInitTest, |
2249 | 0 | xsltExtStyleShutdownTest); |
2250 | 0 | xsltRegisterExtModuleFunction((const xmlChar *) "test", |
2251 | 0 | (const xmlChar *) XSLT_DEFAULT_URL, |
2252 | 0 | xsltExtFunctionTest); |
2253 | 0 | xsltRegisterExtModuleElement((const xmlChar *) "test", |
2254 | 0 | (const xmlChar *) XSLT_DEFAULT_URL, |
2255 | 0 | xsltExtElementPreCompTest, |
2256 | 0 | xsltExtElementTest); |
2257 | 0 | } |
2258 | | |
2259 | | static void |
2260 | | xsltHashScannerModuleFree(void *payload ATTRIBUTE_UNUSED, |
2261 | | void *data ATTRIBUTE_UNUSED, |
2262 | | const xmlChar *name ATTRIBUTE_UNUSED) |
2263 | 0 | { |
2264 | | #ifdef WITH_MODULES |
2265 | | xmlModuleClose(payload); |
2266 | | #endif |
2267 | 0 | } |
2268 | | |
2269 | | /** |
2270 | | * xsltInitGlobals: |
2271 | | * |
2272 | | * Initialize the global variables for extensions |
2273 | | */ |
2274 | | void |
2275 | | xsltInitGlobals(void) |
2276 | 29.6k | { |
2277 | 29.6k | if (xsltExtMutex == NULL) { |
2278 | 3.70k | xsltExtMutex = xmlNewMutex(); |
2279 | 3.70k | } |
2280 | 29.6k | } |
2281 | | |
2282 | | /** |
2283 | | * xsltCleanupGlobals: |
2284 | | * |
2285 | | * Unregister all global variables set up by the XSLT library |
2286 | | */ |
2287 | | void |
2288 | | xsltCleanupGlobals(void) |
2289 | 0 | { |
2290 | 0 | xsltUnregisterAllExtModules(); |
2291 | 0 | xsltUnregisterAllExtModuleFunction(); |
2292 | 0 | xsltUnregisterAllExtModuleElement(); |
2293 | 0 | xsltUnregisterAllExtModuleTopLevel(); |
2294 | |
|
2295 | 0 | xmlMutexLock(xsltExtMutex); |
2296 | | /* cleanup dynamic module hash */ |
2297 | 0 | if (NULL != xsltModuleHash) { |
2298 | 0 | xmlHashScan(xsltModuleHash, xsltHashScannerModuleFree, 0); |
2299 | 0 | xmlHashFree(xsltModuleHash, NULL); |
2300 | 0 | xsltModuleHash = NULL; |
2301 | 0 | } |
2302 | 0 | xmlMutexUnlock(xsltExtMutex); |
2303 | |
|
2304 | 0 | xmlFreeMutex(xsltExtMutex); |
2305 | 0 | xsltExtMutex = NULL; |
2306 | 0 | xsltFreeLocales(); |
2307 | 0 | xsltUninit(); |
2308 | 0 | } |
2309 | | |
2310 | | static void |
2311 | | xsltDebugDumpExtensionsCallback(void *function ATTRIBUTE_UNUSED, |
2312 | | void *data, const xmlChar * name, |
2313 | | const xmlChar * URI, |
2314 | | const xmlChar * not_used ATTRIBUTE_UNUSED) |
2315 | 0 | { |
2316 | 0 | FILE *output = (FILE *) data; |
2317 | 0 | if (!name || !URI) |
2318 | 0 | return; |
2319 | 0 | fprintf(output, "{%s}%s\n", URI, name); |
2320 | 0 | } |
2321 | | |
2322 | | static void |
2323 | | xsltDebugDumpExtModulesCallback(void *function ATTRIBUTE_UNUSED, |
2324 | | void *data, const xmlChar * URI, |
2325 | | const xmlChar * not_used ATTRIBUTE_UNUSED, |
2326 | | const xmlChar * not_used2 ATTRIBUTE_UNUSED) |
2327 | 0 | { |
2328 | 0 | FILE *output = (FILE *) data; |
2329 | 0 | if (!URI) |
2330 | 0 | return; |
2331 | 0 | fprintf(output, "%s\n", URI); |
2332 | 0 | } |
2333 | | |
2334 | | /** |
2335 | | * xsltDebugDumpExtensions: |
2336 | | * @output: the FILE * for the output, if NULL stdout is used |
2337 | | * |
2338 | | * Dumps a list of the registered XSLT extension functions and elements |
2339 | | */ |
2340 | | void |
2341 | | xsltDebugDumpExtensions(FILE * output) |
2342 | 0 | { |
2343 | 0 | if (output == NULL) |
2344 | 0 | output = stdout; |
2345 | 0 | fprintf(output, |
2346 | 0 | "Registered XSLT Extensions\n--------------------------\n"); |
2347 | 0 | if (!xsltFunctionsHash) |
2348 | 0 | fprintf(output, "No registered extension functions\n"); |
2349 | 0 | else { |
2350 | 0 | fprintf(output, "Registered Extension Functions:\n"); |
2351 | 0 | xmlMutexLock(xsltExtMutex); |
2352 | 0 | xmlHashScanFull(xsltFunctionsHash, xsltDebugDumpExtensionsCallback, |
2353 | 0 | output); |
2354 | 0 | xmlMutexUnlock(xsltExtMutex); |
2355 | 0 | } |
2356 | 0 | if (!xsltElementsHash) |
2357 | 0 | fprintf(output, "\nNo registered extension elements\n"); |
2358 | 0 | else { |
2359 | 0 | fprintf(output, "\nRegistered Extension Elements:\n"); |
2360 | 0 | xmlMutexLock(xsltExtMutex); |
2361 | 0 | xmlHashScanFull(xsltElementsHash, xsltDebugDumpExtensionsCallback, |
2362 | 0 | output); |
2363 | 0 | xmlMutexUnlock(xsltExtMutex); |
2364 | 0 | } |
2365 | 0 | if (!xsltExtensionsHash) |
2366 | 0 | fprintf(output, "\nNo registered extension modules\n"); |
2367 | 0 | else { |
2368 | 0 | fprintf(output, "\nRegistered Extension Modules:\n"); |
2369 | 0 | xmlMutexLock(xsltExtMutex); |
2370 | 0 | xmlHashScanFull(xsltExtensionsHash, xsltDebugDumpExtModulesCallback, |
2371 | 0 | output); |
2372 | 0 | xmlMutexUnlock(xsltExtMutex); |
2373 | 0 | } |
2374 | |
|
2375 | 0 | } |