1/*
2   +----------------------------------------------------------------------+
3   | PHP Version 7                                                        |
4   +----------------------------------------------------------------------+
5   | Copyright (c) 1997-2014 The PHP Group                                |
6   +----------------------------------------------------------------------+
7   | This source file is subject to version 3.01 of the PHP license,      |
8   | that is bundled with this package in the file LICENSE, and is        |
9   | available through the world-wide-web at the following url:           |
10   | http://www.php.net/license/3_01.txt                                  |
11   | If you did not receive a copy of the PHP license and are unable to   |
12   | obtain it through the world-wide-web, please send a note to          |
13   | license@php.net so we can mail you a copy immediately.               |
14   +----------------------------------------------------------------------+
15   | Authors: Sterling Hughes <sterling@php.net>                          |
16   +----------------------------------------------------------------------+
17 */
18
19#include "php.h"
20#if defined(HAVE_LIBXML) && (defined(HAVE_XML) || defined(HAVE_XMLRPC)) && !defined(HAVE_LIBEXPAT)
21#include "expat_compat.h"
22
23typedef struct _php_xml_ns {
24    xmlNsPtr nsptr;
25    int ref_count;
26    void *next;
27    void *prev;
28} php_xml_ns;
29
30#ifdef LIBXML_EXPAT_COMPAT
31
32#define IS_NS_DECL(__ns) \
33    ((__ns) != NULL && strlen(__ns) == 5 && *(__ns) == 'x' && *((__ns)+1) == 'm' && \
34     *((__ns)+2) == 'l' && *((__ns)+3) == 'n' && *((__ns)+4) == 's')
35
36static void
37_qualify_namespace(XML_Parser parser, const xmlChar *name, const xmlChar *URI, xmlChar **qualified)
38{
39    if (URI) {
40            /* Use libxml functions otherwise its memory deallocation is screwed up */
41            *qualified = xmlStrdup(URI);
42            *qualified = xmlStrncat(*qualified, parser->_ns_separator, 1);
43            *qualified = xmlStrncat(*qualified, name, xmlStrlen(name));
44    } else {
45        *qualified = xmlStrdup(name);
46    }
47}
48
49static void
50_start_element_handler(void *user, const xmlChar *name, const xmlChar **attributes)
51{
52    XML_Parser  parser = (XML_Parser) user;
53    xmlChar    *qualified_name = NULL;
54
55    if (parser->h_start_element == NULL) {
56        if (parser->h_default) {
57            int attno = 0;
58
59            qualified_name = xmlStrncatNew((xmlChar *)"<", name, xmlStrlen(name));
60            if (attributes) {
61                while (attributes[attno] != NULL) {
62                    int att_len;
63                    char *att_string, *att_name, *att_value;
64
65                    att_name = (char *)attributes[attno++];
66                    att_value = (char *)attributes[attno++];
67
68                    att_len = spprintf(&att_string, 0, " %s=\"%s\"", att_name, att_value);
69
70                    qualified_name = xmlStrncat(qualified_name, (xmlChar *)att_string, att_len);
71                    efree(att_string);
72                }
73
74            }
75            qualified_name = xmlStrncat(qualified_name, (xmlChar *)">", 1);
76            parser->h_default(parser->user, (const XML_Char *) qualified_name, xmlStrlen(qualified_name));
77            xmlFree(qualified_name);
78        }
79        return;
80    }
81
82    qualified_name = xmlStrdup(name);
83
84    parser->h_start_element(parser->user, (const XML_Char *) qualified_name, (const XML_Char **) attributes);
85
86    xmlFree(qualified_name);
87}
88
89static void
90_start_element_handler_ns(void *user, const xmlChar *name, const xmlChar *prefix, const xmlChar *URI, int nb_namespaces, const xmlChar ** namespaces, int nb_attributes, int nb_defaulted, const xmlChar ** attributes)
91{
92    XML_Parser  parser = (XML_Parser) user;
93    xmlChar    *qualified_name = NULL;
94    xmlChar **attrs = NULL;
95    int i;
96    int z = 0;
97    int y = 0;
98
99    if (nb_namespaces > 0 && parser->h_start_ns != NULL) {
100        for (i = 0; i < nb_namespaces; i += 1) {
101            parser->h_start_ns(parser->user, (const XML_Char *) namespaces[y], (const XML_Char *) namespaces[y+1]);
102            y += 2;
103        }
104        y = 0;
105    }
106
107    if (parser->h_start_element == NULL) {
108        if (parser->h_default) {
109
110            if (prefix) {
111                qualified_name = xmlStrncatNew((xmlChar *)"<", prefix, xmlStrlen(prefix));
112                qualified_name = xmlStrncat(qualified_name, (xmlChar *)":", 1);
113                qualified_name = xmlStrncat(qualified_name, name, xmlStrlen(name));
114            } else {
115                qualified_name = xmlStrncatNew((xmlChar *)"<", name, xmlStrlen(name));
116            }
117
118            if (namespaces) {
119                int i, j;
120                for (i = 0,j = 0;j < nb_namespaces;j++) {
121                    int ns_len;
122                    char *ns_string, *ns_prefix, *ns_url;
123
124                    ns_prefix = (char *) namespaces[i++];
125                    ns_url = (char *) namespaces[i++];
126
127                    if (ns_prefix) {
128                        ns_len = spprintf(&ns_string, 0, " xmlns:%s=\"%s\"", ns_prefix, ns_url);
129                    } else {
130                        ns_len = spprintf(&ns_string, 0, " xmlns=\"%s\"", ns_url);
131                    }
132                    qualified_name = xmlStrncat(qualified_name, (xmlChar *)ns_string, ns_len);
133
134                    efree(ns_string);
135                }
136            }
137
138            if (attributes) {
139                for (i = 0; i < nb_attributes; i += 1) {
140                    int att_len;
141                    char *att_string, *att_name, *att_value, *att_prefix, *att_valueend;
142
143                    att_name = (char *) attributes[y++];
144                    att_prefix = (char *)attributes[y++];
145                    y++;
146                    att_value = (char *)attributes[y++];
147                    att_valueend = (char *)attributes[y++];
148
149                    if (att_prefix) {
150                        att_len = spprintf(&att_string, 0, " %s:%s=\"", att_prefix, att_name);
151                    } else {
152                        att_len = spprintf(&att_string, 0, " %s=\"", att_name);
153                    }
154
155                    qualified_name = xmlStrncat(qualified_name, (xmlChar *)att_string, att_len);
156                    qualified_name = xmlStrncat(qualified_name, (xmlChar *)att_value, att_valueend - att_value);
157                    qualified_name = xmlStrncat(qualified_name, (xmlChar *)"\"", 1);
158
159                    efree(att_string);
160                }
161
162            }
163            qualified_name = xmlStrncat(qualified_name, (xmlChar *)">", 1);
164            parser->h_default(parser->user, (const XML_Char *) qualified_name, xmlStrlen(qualified_name));
165            xmlFree(qualified_name);
166        }
167        return;
168    }
169    _qualify_namespace(parser, name, URI, &qualified_name);
170
171    if (attributes != NULL) {
172        xmlChar    *qualified_name_attr = NULL;
173        attrs = safe_emalloc((nb_attributes  * 2) + 1, sizeof(int *), 0);
174
175        for (i = 0; i < nb_attributes; i += 1) {
176
177            if (attributes[y+1] != NULL) {
178                _qualify_namespace(parser, attributes[y] , attributes[y + 2], &qualified_name_attr);
179            } else {
180                qualified_name_attr = xmlStrdup(attributes[y]);
181            }
182            attrs[z] = qualified_name_attr;
183            attrs[z + 1] = xmlStrndup(attributes[y + 3] , (int) (attributes[y + 4] - attributes[y + 3]));
184            z += 2;
185            y += 5;
186        }
187
188        attrs[z] = NULL;
189    }
190    parser->h_start_element(parser->user, (const XML_Char *) qualified_name, (const XML_Char **) attrs);
191    if (attrs) {
192        for (i = 0; i < z; i++) {
193            xmlFree(attrs[i]);
194        }
195        efree(attrs);
196    }
197    xmlFree(qualified_name);
198}
199
200static void
201_end_element_handler(void *user, const xmlChar *name)
202{
203    xmlChar    *qualified_name;
204    XML_Parser  parser = (XML_Parser) user;
205
206    if (parser->h_end_element == NULL) {
207        if (parser->h_default) {
208            char *end_element;
209
210            spprintf(&end_element, 0, "</%s>", (char *)name);
211            parser->h_default(parser->user, (const XML_Char *) end_element, strlen(end_element));
212            efree(end_element);
213        }
214        return;
215    }
216
217    qualified_name = xmlStrdup(name);
218
219    parser->h_end_element(parser->user, (const XML_Char *) qualified_name);
220
221    xmlFree(qualified_name);
222}
223
224static void
225_end_element_handler_ns(void *user, const xmlChar *name, const xmlChar * prefix, const xmlChar *URI)
226{
227    xmlChar    *qualified_name;
228    XML_Parser  parser = (XML_Parser) user;
229
230    if (parser->h_end_element == NULL) {
231        if (parser->h_default) {
232            char *end_element;
233            int end_element_len;
234
235            if (prefix) {
236                end_element_len = spprintf(&end_element, 0, "</%s:%s>", (char *) prefix, (char *)name);
237            } else {
238                end_element_len = spprintf(&end_element, 0, "</%s>", (char *)name);
239            }
240            parser->h_default(parser->user, (const XML_Char *) end_element, end_element_len);
241            efree(end_element);
242        }
243        return;
244    }
245
246    _qualify_namespace(parser, name, URI,  &qualified_name);
247
248    parser->h_end_element(parser->user, (const XML_Char *) qualified_name);
249
250    xmlFree(qualified_name);
251}
252
253static void
254_cdata_handler(void *user, const xmlChar *cdata, int cdata_len)
255{
256    XML_Parser parser = (XML_Parser) user;
257
258    if (parser->h_cdata == NULL) {
259        if (parser->h_default) {
260            parser->h_default(parser->user, (const XML_Char *) cdata, cdata_len);
261        }
262        return;
263    }
264
265    parser->h_cdata(parser->user, (const XML_Char *) cdata, cdata_len);
266}
267
268static void
269_pi_handler(void *user, const xmlChar *target, const xmlChar *data)
270{
271    XML_Parser parser = (XML_Parser) user;
272
273    if (parser->h_pi == NULL) {
274        if (parser->h_default) {
275            char    *full_pi;
276            spprintf(&full_pi, 0, "<?%s %s?>", (char *)target, (char *)data);
277            parser->h_default(parser->user, (const XML_Char *) full_pi, strlen(full_pi));
278            efree(full_pi);
279        }
280        return;
281    }
282
283    parser->h_pi(parser->user, (const XML_Char *) target, (const XML_Char *) data);
284}
285
286static void
287_unparsed_entity_decl_handler(void *user,
288                              const xmlChar *name,
289                              const xmlChar *pub_id,
290                              const xmlChar *sys_id,
291                              const xmlChar *notation)
292{
293    XML_Parser parser = (XML_Parser) user;
294
295    if (parser->h_unparsed_entity_decl == NULL) {
296        return;
297    }
298
299    parser->h_unparsed_entity_decl(parser->user, name, NULL, sys_id, pub_id, notation);
300}
301
302static void
303_notation_decl_handler(void *user, const xmlChar *notation, const xmlChar *pub_id, const xmlChar *sys_id)
304{
305    XML_Parser parser = (XML_Parser) user;
306
307    if (parser->h_notation_decl == NULL) {
308        return;
309    }
310
311    parser->h_notation_decl(parser->user, notation, NULL, sys_id, pub_id);
312}
313
314static void
315_build_comment(const xmlChar *data, int data_len, xmlChar **comment, int *comment_len)
316{
317    *comment_len = data_len + 7;
318
319    *comment = xmlMalloc(*comment_len + 1);
320    memcpy(*comment, "<!--", 4);
321    memcpy(*comment + 4, data, data_len);
322    memcpy(*comment + 4 + data_len, "-->", 3);
323
324    (*comment)[*comment_len] = '\0';
325}
326
327static void
328_comment_handler(void *user, const xmlChar *comment)
329{
330    XML_Parser parser = (XML_Parser) user;
331
332    if (parser->h_default) {
333        xmlChar *d_comment;
334        int      d_comment_len;
335
336        _build_comment(comment, xmlStrlen(comment), &d_comment, &d_comment_len);
337        parser->h_default(parser->user, d_comment, d_comment_len);
338        xmlFree(d_comment);
339    }
340}
341
342static void
343_build_entity(const xmlChar *name, int len, xmlChar **entity, int *entity_len)
344{
345    *entity_len = len + 2;
346    *entity = xmlMalloc(*entity_len + 1);
347    (*entity)[0] = '&';
348    memcpy(*entity+1, name, len);
349    (*entity)[len+1] = ';';
350    (*entity)[*entity_len] = '\0';
351}
352
353static void
354_external_entity_ref_handler(void *user, const xmlChar *names, int type, const xmlChar *sys_id, const xmlChar *pub_id, xmlChar *content)
355{
356    XML_Parser parser = (XML_Parser) user;
357
358    if (parser->h_external_entity_ref == NULL) {
359        return;
360    }
361
362    parser->h_external_entity_ref(parser, names, (XML_Char *) "", sys_id, pub_id);
363}
364
365static xmlEntityPtr
366_get_entity(void *user, const xmlChar *name)
367{
368    XML_Parser parser = (XML_Parser) user;
369    xmlEntityPtr ret = NULL;
370
371    if (parser->parser->inSubset == 0) {
372        ret = xmlGetPredefinedEntity(name);
373        if (ret == NULL)
374            ret = xmlGetDocEntity(parser->parser->myDoc, name);
375
376        if (ret == NULL || (parser->parser->instate != XML_PARSER_ENTITY_VALUE && parser->parser->instate != XML_PARSER_ATTRIBUTE_VALUE)) {
377            if (ret == NULL || ret->etype == XML_INTERNAL_GENERAL_ENTITY || ret->etype == XML_INTERNAL_PARAMETER_ENTITY || ret->etype == XML_INTERNAL_PREDEFINED_ENTITY) {
378                /* Predefined entities will expand unless no cdata handler is present */
379                if (parser->h_default && ! (ret && ret->etype == XML_INTERNAL_PREDEFINED_ENTITY && parser->h_cdata)) {
380                    xmlChar *entity;
381                    int      len;
382
383                    _build_entity(name, xmlStrlen(name), &entity, &len);
384                    parser->h_default(parser->user, (const xmlChar *) entity, len);
385                    xmlFree(entity);
386                } else {
387                    /* expat will not expand internal entities if default handler is present otherwise
388                    it will expand and pass them to cdata handler */
389                    if (parser->h_cdata && ret) {
390                        parser->h_cdata(parser->user, ret->content, xmlStrlen(ret->content));
391                    }
392                }
393            } else {
394                if (ret->etype == XML_EXTERNAL_GENERAL_PARSED_ENTITY) {
395                    _external_entity_ref_handler(user, ret->name, ret->etype, ret->SystemID, ret->ExternalID, NULL);
396                }
397            }
398        }
399    }
400
401    return ret;
402}
403
404static xmlSAXHandler
405php_xml_compat_handlers = {
406    NULL, /* internalSubset */
407    NULL, /* isStandalone */
408    NULL, /* hasInternalSubset */
409    NULL, /* hasExternalSubset */
410    NULL, /* resolveEntity */
411    _get_entity, /* getEntity */
412    NULL, /* entityDecl */
413    _notation_decl_handler,
414    NULL, /* attributeDecl */
415    NULL, /* elementDecl */
416    _unparsed_entity_decl_handler, /* unparsedEntity */
417    NULL, /* setDocumentLocator */
418    NULL, /* startDocument */
419    NULL, /* endDocument */
420    _start_element_handler, /* startElement */
421    _end_element_handler, /* endElement */
422    NULL, /* reference */
423    _cdata_handler,
424    NULL, /* ignorableWhitespace */
425    _pi_handler,
426    _comment_handler, /* comment */
427    NULL, /* warning */
428    NULL, /* error */
429    NULL,  /* fatalError */
430    NULL,  /* getParameterEntity */
431    _cdata_handler, /* cdataBlock */
432    NULL, /* externalSubset */
433    XML_SAX2_MAGIC,
434    NULL,
435    _start_element_handler_ns,
436    _end_element_handler_ns,
437    NULL
438};
439
440PHPAPI XML_Parser
441XML_ParserCreate(const XML_Char *encoding)
442{
443    return XML_ParserCreate_MM(encoding, NULL, NULL);
444}
445
446PHPAPI XML_Parser
447XML_ParserCreateNS(const XML_Char *encoding, const XML_Char sep)
448{
449    XML_Char tmp[2];
450    tmp[0] = sep;
451    tmp[1] = '\0';
452    return XML_ParserCreate_MM(encoding, NULL, tmp);
453}
454
455PHPAPI XML_Parser
456XML_ParserCreate_MM(const XML_Char *encoding, const XML_Memory_Handling_Suite *memsuite, const XML_Char *sep)
457{
458    XML_Parser parser;
459
460    parser = (XML_Parser) emalloc(sizeof(struct _XML_Parser));
461    memset(parser, 0, sizeof(struct _XML_Parser));
462    parser->use_namespace = 0;
463    parser->_ns_separator = NULL;
464
465    parser->parser = xmlCreatePushParserCtxt((xmlSAXHandlerPtr) &php_xml_compat_handlers, (void *) parser, NULL, 0, NULL);
466    if (parser->parser == NULL) {
467        efree(parser);
468        return NULL;
469    }
470#if LIBXML_VERSION <= 20617
471    /* for older versions of libxml2, allow correct detection of
472     * charset in documents with a BOM: */
473    parser->parser->charset = XML_CHAR_ENCODING_NONE;
474#endif
475
476#if LIBXML_VERSION >= 20703
477    xmlCtxtUseOptions(parser->parser, XML_PARSE_OLDSAX);
478#endif
479
480    parser->parser->replaceEntities = 1;
481    parser->parser->wellFormed = 0;
482    if (sep != NULL) {
483        parser->use_namespace = 1;
484        parser->parser->sax2 = 1;
485        parser->_ns_separator = xmlStrdup(sep);
486    } else {
487        /* Reset flag as XML_SAX2_MAGIC is needed for xmlCreatePushParserCtxt
488        so must be set in the handlers */
489        parser->parser->sax->initialized = 1;
490    }
491    return parser;
492}
493
494PHPAPI void
495XML_SetUserData(XML_Parser parser, void *user)
496{
497    parser->user = user;
498}
499
500PHPAPI void *
501XML_GetUserData(XML_Parser parser)
502{
503    return parser->user;
504}
505
506PHPAPI void
507XML_SetElementHandler(XML_Parser parser, XML_StartElementHandler start, XML_EndElementHandler end)
508{
509    parser->h_start_element = start;
510    parser->h_end_element = end;
511}
512
513PHPAPI void
514XML_SetCharacterDataHandler(XML_Parser parser, XML_CharacterDataHandler cdata)
515{
516    parser->h_cdata = cdata;
517}
518
519PHPAPI void
520XML_SetProcessingInstructionHandler(XML_Parser parser, XML_ProcessingInstructionHandler pi)
521{
522    parser->h_pi = pi;
523}
524
525PHPAPI void
526XML_SetCommentHandler(XML_Parser parser, XML_CommentHandler comment)
527{
528    parser->h_comment = comment;
529}
530
531PHPAPI void
532XML_SetDefaultHandler(XML_Parser parser, XML_DefaultHandler d)
533{
534    parser->h_default = d;
535}
536
537PHPAPI void
538XML_SetUnparsedEntityDeclHandler(XML_Parser parser, XML_UnparsedEntityDeclHandler unparsed_decl)
539{
540    parser->h_unparsed_entity_decl = unparsed_decl;
541}
542
543PHPAPI void
544XML_SetNotationDeclHandler(XML_Parser parser, XML_NotationDeclHandler notation_decl)
545{
546    parser->h_notation_decl = notation_decl;
547}
548
549PHPAPI void
550XML_SetExternalEntityRefHandler(XML_Parser parser, XML_ExternalEntityRefHandler ext_entity)
551{
552    parser->h_external_entity_ref = ext_entity;
553}
554
555PHPAPI void
556XML_SetStartNamespaceDeclHandler(XML_Parser parser, XML_StartNamespaceDeclHandler start_ns)
557{
558    parser->h_start_ns = start_ns;
559}
560
561PHPAPI void
562XML_SetEndNamespaceDeclHandler(XML_Parser parser, XML_EndNamespaceDeclHandler end_ns)
563{
564    parser->h_end_ns = end_ns;
565}
566
567PHPAPI int
568XML_Parse(XML_Parser parser, const XML_Char *data, int data_len, int is_final)
569{
570    int error;
571
572/* The following is a hack to keep BC with PHP 4 while avoiding
573the inifite loop in libxml <= 2.6.17 which occurs when no encoding
574has been defined and none can be detected */
575#if LIBXML_VERSION <= 20617
576    if (parser->parser->charset == XML_CHAR_ENCODING_NONE) {
577        if (data_len >= 4 || (parser->parser->input->buf->buffer->use + data_len >= 4)) {
578            xmlChar start[4];
579            int char_count;
580
581            char_count = parser->parser->input->buf->buffer->use;
582            if (char_count > 4) {
583                char_count = 4;
584            }
585
586            memcpy(start, parser->parser->input->buf->buffer->content, (size_t)char_count);
587            memcpy(start + char_count, data, (size_t)(4 - char_count));
588
589            if (xmlDetectCharEncoding(&start[0], 4) == XML_CHAR_ENCODING_NONE) {
590                parser->parser->charset = XML_CHAR_ENCODING_UTF8;
591            }
592        }
593    }
594#endif
595
596    error = xmlParseChunk(parser->parser, (char *) data, data_len, is_final);
597    if (!error) {
598        return 1;
599    } else if (parser->parser->lastError.level > XML_ERR_WARNING ){
600        return 0;
601    } else {
602        return 1;
603    }
604}
605
606PHPAPI int
607XML_GetErrorCode(XML_Parser parser)
608{
609    return parser->parser->errNo;
610}
611
612static const XML_Char *const error_mapping[] = {
613    (const XML_Char *)"No error",
614    (const XML_Char *)"No memory",
615    (const XML_Char *)"Invalid document start",
616    (const XML_Char *)"Empty document",
617    (const XML_Char *)"Not well-formed (invalid token)",
618    (const XML_Char *)"Invalid document end",
619    (const XML_Char *)"Invalid hexadecimal character reference",
620    (const XML_Char *)"Invalid decimal character reference",
621    (const XML_Char *)"Invalid character reference",
622    (const XML_Char *)"Invalid character",
623    (const XML_Char *)"XML_ERR_CHARREF_AT_EOF",
624    (const XML_Char *)"XML_ERR_CHARREF_IN_PROLOG",
625    (const XML_Char *)"XML_ERR_CHARREF_IN_EPILOG",
626    (const XML_Char *)"XML_ERR_CHARREF_IN_DTD",
627    (const XML_Char *)"XML_ERR_ENTITYREF_AT_EOF",
628    (const XML_Char *)"XML_ERR_ENTITYREF_IN_PROLOG",
629    (const XML_Char *)"XML_ERR_ENTITYREF_IN_EPILOG",
630    (const XML_Char *)"XML_ERR_ENTITYREF_IN_DTD",
631    (const XML_Char *)"PEReference at end of document",
632    (const XML_Char *)"PEReference in prolog",
633    (const XML_Char *)"PEReference in epilog",
634    (const XML_Char *)"PEReference: forbidden within markup decl in internal subset",
635    (const XML_Char *)"XML_ERR_ENTITYREF_NO_NAME",
636    (const XML_Char *)"EntityRef: expecting ';'",
637    (const XML_Char *)"PEReference: no name",
638    (const XML_Char *)"PEReference: expecting ';'",
639    (const XML_Char *)"Undeclared entity error",
640    (const XML_Char *)"Undeclared entity warning",
641    (const XML_Char *)"Unparsed Entity",
642    (const XML_Char *)"XML_ERR_ENTITY_IS_EXTERNAL",
643    (const XML_Char *)"XML_ERR_ENTITY_IS_PARAMETER",
644    (const XML_Char *)"Unknown encoding",
645    (const XML_Char *)"Unsupported encoding",
646    (const XML_Char *)"String not started expecting ' or \"",
647    (const XML_Char *)"String not closed expecting \" or '",
648    (const XML_Char *)"Namespace declaration error",
649    (const XML_Char *)"EntityValue: \" or ' expected",
650    (const XML_Char *)"EntityValue: \" or ' expected",
651    (const XML_Char *)"< in attribute",
652    (const XML_Char *)"Attribute not started",
653    (const XML_Char *)"Attribute not finished",
654    (const XML_Char *)"Attribute without value",
655    (const XML_Char *)"Attribute redefined",
656    (const XML_Char *)"SystemLiteral \" or ' expected",
657    (const XML_Char *)"SystemLiteral \" or ' expected",
658    /* (const XML_Char *)"XML_ERR_COMMENT_NOT_STARTED", <= eliminated on purpose */
659    (const XML_Char *)"Comment not finished",
660    (const XML_Char *)"Processing Instruction not started",
661    (const XML_Char *)"Processing Instruction not finished",
662    (const XML_Char *)"NOTATION: Name expected here",
663    (const XML_Char *)"'>' required to close NOTATION declaration",
664    (const XML_Char *)"'(' required to start ATTLIST enumeration",
665    (const XML_Char *)"'(' required to start ATTLIST enumeration",
666    (const XML_Char *)"MixedContentDecl : '|' or ')*' expected",
667    (const XML_Char *)"XML_ERR_MIXED_NOT_FINISHED",
668    (const XML_Char *)"ELEMENT in DTD not started",
669    (const XML_Char *)"ELEMENT in DTD not finished",
670    (const XML_Char *)"XML declaration not started",
671    (const XML_Char *)"XML declaration not finished",
672    (const XML_Char *)"XML_ERR_CONDSEC_NOT_STARTED",
673    (const XML_Char *)"XML conditional section not closed",
674    (const XML_Char *)"Content error in the external subset",
675    (const XML_Char *)"DOCTYPE not finished",
676    (const XML_Char *)"Sequence ']]>' not allowed in content",
677    (const XML_Char *)"CDATA not finished",
678    (const XML_Char *)"Reserved XML Name",
679    (const XML_Char *)"Space required",
680    (const XML_Char *)"XML_ERR_SEPARATOR_REQUIRED",
681    (const XML_Char *)"NmToken expected in ATTLIST enumeration",
682    (const XML_Char *)"XML_ERR_NAME_REQUIRED",
683    (const XML_Char *)"MixedContentDecl : '#PCDATA' expected",
684    (const XML_Char *)"SYSTEM or PUBLIC, the URI is missing",
685    (const XML_Char *)"PUBLIC, the Public Identifier is missing",
686    (const XML_Char *)"< required",
687    (const XML_Char *)"> required",
688    (const XML_Char *)"</ required",
689    (const XML_Char *)"= required",
690    (const XML_Char *)"Mismatched tag",
691    (const XML_Char *)"Tag not finished",
692    (const XML_Char *)"standalone accepts only 'yes' or 'no'",
693    (const XML_Char *)"Invalid XML encoding name",
694    (const XML_Char *)"Comment must not contain '--' (double-hyphen)",
695    (const XML_Char *)"Invalid encoding",
696    (const XML_Char *)"external parsed entities cannot be standalone",
697    (const XML_Char *)"XML conditional section '[' expected",
698    (const XML_Char *)"Entity value required",
699    (const XML_Char *)"chunk is not well balanced",
700    (const XML_Char *)"extra content at the end of well balanced chunk",
701    (const XML_Char *)"XML_ERR_ENTITY_CHAR_ERROR",
702    (const XML_Char *)"PEReferences forbidden in internal subset",
703    (const XML_Char *)"Detected an entity reference loop",
704    (const XML_Char *)"XML_ERR_ENTITY_BOUNDARY",
705    (const XML_Char *)"Invalid URI",
706    (const XML_Char *)"Fragment not allowed",
707    (const XML_Char *)"XML_WAR_CATALOG_PI",
708    (const XML_Char *)"XML_ERR_NO_DTD",
709    (const XML_Char *)"conditional section INCLUDE or IGNORE keyword expected", /* 95 */
710    (const XML_Char *)"Version in XML Declaration missing", /* 96 */
711    (const XML_Char *)"XML_WAR_UNKNOWN_VERSION", /* 97 */
712    (const XML_Char *)"XML_WAR_LANG_VALUE", /* 98 */
713    (const XML_Char *)"XML_WAR_NS_URI", /* 99 */
714    (const XML_Char *)"XML_WAR_NS_URI_RELATIVE", /* 100 */
715    (const XML_Char *)"Missing encoding in text declaration" /* 101 */
716};
717
718PHPAPI const XML_Char *
719XML_ErrorString(int code)
720{
721    if (code < 0 || code >= (int)(sizeof(error_mapping) / sizeof(error_mapping[0]))) {
722        return (const XML_Char *) "Unknown";
723    }
724    return error_mapping[code];
725}
726
727PHPAPI int
728XML_GetCurrentLineNumber(XML_Parser parser)
729{
730    return parser->parser->input->line;
731}
732
733PHPAPI int
734XML_GetCurrentColumnNumber(XML_Parser parser)
735{
736    return parser->parser->input->col;
737}
738
739PHPAPI int
740XML_GetCurrentByteIndex(XML_Parser parser)
741{
742    return parser->parser->input->consumed +
743            (parser->parser->input->cur - parser->parser->input->base);
744}
745
746PHPAPI int
747XML_GetCurrentByteCount(XML_Parser parser)
748{
749    /* WARNING: this is identical to ByteIndex; it should probably
750     * be different */
751    return parser->parser->input->consumed +
752            (parser->parser->input->cur - parser->parser->input->base);
753}
754
755PHPAPI const XML_Char *XML_ExpatVersion(void)
756{
757    return (const XML_Char *) "1.0";
758}
759
760PHPAPI void
761XML_ParserFree(XML_Parser parser)
762{
763    if (parser->use_namespace) {
764        if (parser->_ns_separator) {
765            xmlFree(parser->_ns_separator);
766        }
767    }
768    if (parser->parser->myDoc) {
769        xmlFreeDoc(parser->parser->myDoc);
770        parser->parser->myDoc = NULL;
771    }
772    xmlFreeParserCtxt(parser->parser);
773    efree(parser);
774}
775
776#endif /* LIBXML_EXPAT_COMPAT */
777#endif
778
779/**
780 * Local Variables:
781 * tab-width: 4
782 * c-basic-offset: 4
783 * indent-tabs-mode: t
784 * End:
785 * vim600: fdm=marker
786 * vim: ts=4 noet sw=4
787 */
788