Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_xslt_filter_module.c @ 3352:5c43621c580a
a cache manager thread handle was overwritten by a cache loader thread handle,
this caused an exit delay, the bug had been introduced in r3023
author | Igor Sysoev <igor@sysoev.ru> |
---|---|
date | Tue, 17 Nov 2009 16:46:27 +0000 |
parents | 204ea173234f |
children | 6b8e5c882e47 |
rev | line source |
---|---|
2139 | 1 |
2 /* | |
3 * Copyright (C) Igor Sysoev | |
4 */ | |
5 | |
6 | |
7 #include <ngx_config.h> | |
8 #include <ngx_core.h> | |
9 #include <ngx_http.h> | |
10 | |
11 #include <libxml/parser.h> | |
12 #include <libxml/tree.h> | |
13 #include <libxslt/xslt.h> | |
14 #include <libxslt/xsltInternals.h> | |
15 #include <libxslt/transform.h> | |
16 #include <libxslt/xsltutils.h> | |
17 | |
2299 | 18 #if (NGX_HAVE_EXSLT) |
19 #include <libexslt/exslt.h> | |
20 #endif | |
21 | |
2139 | 22 |
23 #ifndef NGX_HTTP_XSLT_REUSE_DTD | |
24 #define NGX_HTTP_XSLT_REUSE_DTD 1 | |
25 #endif | |
26 | |
27 | |
28 typedef struct { | |
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29 u_char *name; |
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30 void *data; |
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31 } ngx_http_xslt_file_t; |
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32 |
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33 |
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34 typedef struct { |
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35 ngx_array_t dtd_files; /* ngx_http_xslt_file_t */ |
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36 ngx_array_t sheet_files; /* ngx_http_xslt_file_t */ |
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37 } ngx_http_xslt_filter_main_conf_t; |
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38 |
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39 |
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40 typedef struct { |
2139 | 41 xsltStylesheetPtr stylesheet; |
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42 ngx_array_t params; /* ngx_http_complex_value_t */ |
2139 | 43 } ngx_http_xslt_sheet_t; |
44 | |
45 | |
46 typedef struct { | |
47 xmlDtdPtr dtd; | |
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48 ngx_array_t sheets; /* ngx_http_xslt_sheet_t */ |
2148 | 49 ngx_hash_t types; |
50 ngx_array_t *types_keys; | |
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51 } ngx_http_xslt_filter_loc_conf_t; |
2139 | 52 |
53 | |
54 typedef struct { | |
55 xmlDocPtr doc; | |
56 xmlParserCtxtPtr ctxt; | |
57 xmlSAXHandler *sax; | |
58 ngx_http_request_t *request; | |
59 ngx_array_t params; | |
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60 |
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61 ngx_uint_t done; /* unsigned done:1; */ |
2139 | 62 } ngx_http_xslt_filter_ctx_t; |
63 | |
64 | |
65 static ngx_int_t ngx_http_xslt_send(ngx_http_request_t *r, | |
66 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b); | |
67 static ngx_int_t ngx_http_xslt_add_chunk(ngx_http_request_t *r, | |
68 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b); | |
69 | |
70 | |
71 static void ngx_http_xslt_sax_start_document(void *data); | |
72 static void ngx_http_xslt_sax_end_document(void *data); | |
73 static void ngx_http_xslt_sax_internal_subset(void *data, const xmlChar *name, | |
74 const xmlChar *externalId, const xmlChar *systemId); | |
75 static void ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
76 const xmlChar *externalId, const xmlChar *systemId); | |
77 static void ngx_http_xslt_sax_entity_decl(void *data, const xmlChar *name, | |
78 int type, const xmlChar *publicId, const xmlChar *systemId, | |
79 xmlChar *content); | |
80 static void ngx_http_xslt_sax_attribute_decl(void *data, const xmlChar *elem, | |
81 const xmlChar *fullname, int type, int def, const xmlChar *defaultValue, | |
82 xmlEnumerationPtr tree); | |
83 static void ngx_http_xslt_sax_element_decl(void *data, const xmlChar * name, | |
84 int type, xmlElementContentPtr content); | |
85 static void ngx_http_xslt_sax_notation_decl(void *data, const xmlChar *name, | |
86 const xmlChar *publicId, const xmlChar *systemId); | |
87 static void ngx_http_xslt_sax_unparsed_entity_decl(void *data, | |
88 const xmlChar *name, const xmlChar *publicId, const xmlChar *systemId, | |
89 const xmlChar *notationName); | |
90 static void ngx_http_xslt_sax_start_element(void *data, | |
91 const xmlChar *localname, const xmlChar *prefix, const xmlChar *URI, | |
92 int nb_namespaces, const xmlChar **namespaces, int nb_attributes, | |
93 int nb_defaulted, const xmlChar **attributes); | |
94 static void ngx_http_xslt_sax_end_element(void *data, | |
95 const xmlChar * localname ATTRIBUTE_UNUSED, | |
96 const xmlChar * prefix ATTRIBUTE_UNUSED, | |
97 const xmlChar * URI ATTRIBUTE_UNUSED); | |
98 static void ngx_http_xslt_sax_characters(void *data, const xmlChar *p, int len); | |
99 static void ngx_http_xslt_sax_cdata_block(void *data, const xmlChar *p, | |
100 int len); | |
101 static xmlEntityPtr ngx_http_xslt_sax_get_entity(void *data, | |
102 const xmlChar *name); | |
103 static xmlEntityPtr ngx_http_xslt_sax_get_parameter_entity(void *data, | |
104 const xmlChar *name); | |
105 static xmlParserInputPtr ngx_http_xslt_sax_resolve_entity(void *data, | |
106 const xmlChar *publicId, const xmlChar *systemId); | |
107 static void ngx_http_xslt_sax_reference(void *data, const xmlChar *name); | |
108 static void ngx_http_xslt_sax_comment(void *data, const xmlChar *value); | |
109 static void ngx_http_xslt_sax_processing_instruction(void *data, | |
110 const xmlChar *target, const xmlChar *pidata); | |
111 static int ngx_http_xslt_sax_is_standalone(void *data); | |
112 static int ngx_http_xslt_sax_has_internal_subset(void *data); | |
113 static int ngx_http_xslt_sax_has_external_subset(void *data); | |
114 static void ngx_cdecl ngx_http_xslt_sax_error(void *data, const char *msg, ...); | |
115 | |
116 | |
117 static ngx_buf_t *ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
118 ngx_http_xslt_filter_ctx_t *ctx); | |
119 static ngx_int_t ngx_http_xslt_params(ngx_http_request_t *r, | |
120 ngx_http_xslt_filter_ctx_t *ctx, ngx_array_t *params); | |
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121 static u_char *ngx_http_xslt_content_type(xsltStylesheetPtr s); |
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122 static u_char *ngx_http_xslt_encoding(xsltStylesheetPtr s); |
2139 | 123 static void ngx_http_xslt_cleanup(void *data); |
124 | |
125 static char *ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, | |
126 void *conf); | |
127 static char *ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, | |
128 void *conf); | |
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129 static void ngx_http_xslt_cleanup_dtd(void *data); |
2139 | 130 static void ngx_http_xslt_cleanup_stylesheet(void *data); |
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131 static void *ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf); |
2139 | 132 static void *ngx_http_xslt_filter_create_conf(ngx_conf_t *cf); |
133 static char *ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, | |
134 void *child); | |
135 static ngx_int_t ngx_http_xslt_filter_init(ngx_conf_t *cf); | |
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136 static void ngx_http_xslt_filter_exit(ngx_cycle_t *cycle); |
2139 | 137 |
138 | |
139 ngx_str_t ngx_http_xslt_default_types[] = { | |
140 ngx_string("text/xml"), | |
141 ngx_null_string | |
142 }; | |
143 | |
144 | |
145 static ngx_command_t ngx_http_xslt_filter_commands[] = { | |
146 | |
147 { ngx_string("xml_entities"), | |
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148 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
2139 | 149 ngx_http_xslt_entities, |
150 NGX_HTTP_LOC_CONF_OFFSET, | |
151 0, | |
152 NULL }, | |
153 | |
154 { ngx_string("xslt_stylesheet"), | |
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155 NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
2139 | 156 ngx_http_xslt_stylesheet, |
157 NGX_HTTP_LOC_CONF_OFFSET, | |
158 0, | |
159 NULL }, | |
160 | |
161 { ngx_string("xslt_types"), | |
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162 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
2139 | 163 ngx_http_types_slot, |
164 NGX_HTTP_LOC_CONF_OFFSET, | |
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165 offsetof(ngx_http_xslt_filter_loc_conf_t, types_keys), |
2139 | 166 &ngx_http_xslt_default_types[0] }, |
167 | |
168 ngx_null_command | |
169 }; | |
170 | |
171 | |
172 static ngx_http_module_t ngx_http_xslt_filter_module_ctx = { | |
173 NULL, /* preconfiguration */ | |
174 ngx_http_xslt_filter_init, /* postconfiguration */ | |
175 | |
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176 ngx_http_xslt_filter_create_main_conf, /* create main configuration */ |
2139 | 177 NULL, /* init main configuration */ |
178 | |
179 NULL, /* create server configuration */ | |
180 NULL, /* merge server configuration */ | |
181 | |
182 ngx_http_xslt_filter_create_conf, /* create location configuration */ | |
183 ngx_http_xslt_filter_merge_conf /* merge location configuration */ | |
184 }; | |
185 | |
186 | |
187 ngx_module_t ngx_http_xslt_filter_module = { | |
188 NGX_MODULE_V1, | |
189 &ngx_http_xslt_filter_module_ctx, /* module context */ | |
190 ngx_http_xslt_filter_commands, /* module directives */ | |
191 NGX_HTTP_MODULE, /* module type */ | |
192 NULL, /* init master */ | |
193 NULL, /* init module */ | |
194 NULL, /* init process */ | |
195 NULL, /* init thread */ | |
196 NULL, /* exit thread */ | |
2983 | 197 ngx_http_xslt_filter_exit, /* exit process */ |
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198 ngx_http_xslt_filter_exit, /* exit master */ |
2139 | 199 NGX_MODULE_V1_PADDING |
200 }; | |
201 | |
202 | |
203 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; | |
204 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; | |
205 | |
206 | |
207 static ngx_int_t | |
208 ngx_http_xslt_header_filter(ngx_http_request_t *r) | |
209 { | |
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210 ngx_http_xslt_filter_ctx_t *ctx; |
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211 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 212 |
213 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
214 "xslt filter header"); | |
215 | |
216 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) { | |
217 return ngx_http_next_header_filter(r); | |
218 } | |
219 | |
220 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
221 | |
222 if (conf->sheets.nelts == 0 | |
2148 | 223 || ngx_http_test_content_type(r, &conf->types) == NULL) |
2139 | 224 { |
225 return ngx_http_next_header_filter(r); | |
226 } | |
227 | |
228 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
229 | |
230 if (ctx) { | |
231 return ngx_http_next_header_filter(r); | |
232 } | |
233 | |
234 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_xslt_filter_ctx_t)); | |
235 if (ctx == NULL) { | |
236 return NGX_ERROR; | |
237 } | |
238 | |
239 ngx_http_set_ctx(r, ctx, ngx_http_xslt_filter_module); | |
240 | |
241 r->main_filter_need_in_memory = 1; | |
242 | |
243 return NGX_OK; | |
244 } | |
245 | |
246 | |
247 static ngx_int_t | |
248 ngx_http_xslt_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
249 { | |
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250 int wellFormed; |
2139 | 251 ngx_chain_t *cl; |
252 ngx_http_xslt_filter_ctx_t *ctx; | |
253 | |
254 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
255 "xslt filter body"); | |
256 | |
257 if (in == NULL) { | |
258 return ngx_http_next_body_filter(r, in); | |
259 } | |
260 | |
261 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
262 | |
263 if (ctx == NULL || ctx->done) { | |
264 return ngx_http_next_body_filter(r, in); | |
265 } | |
266 | |
267 for (cl = in; cl; cl = cl->next) { | |
268 | |
269 if (ngx_http_xslt_add_chunk(r, ctx, cl->buf) != NGX_OK) { | |
270 | |
271 if (ctx->ctxt->myDoc){ | |
272 | |
273 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
274 ctx->ctxt->myDoc->extSubset = NULL; | |
275 #endif | |
276 xmlFreeDoc(ctx->ctxt->myDoc); | |
277 } | |
278 | |
279 xmlFreeParserCtxt(ctx->ctxt); | |
280 | |
281 return ngx_http_xslt_send(r, ctx, NULL); | |
282 } | |
283 | |
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284 if (cl->buf->last_buf || cl->buf->last_in_chain) { |
2139 | 285 |
286 ctx->doc = ctx->ctxt->myDoc; | |
287 | |
288 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
289 ctx->doc->extSubset = NULL; | |
290 #endif | |
291 | |
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292 wellFormed = ctx->ctxt->wellFormed; |
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293 |
2139 | 294 xmlFreeParserCtxt(ctx->ctxt); |
295 | |
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296 if (wellFormed) { |
2139 | 297 return ngx_http_xslt_send(r, ctx, |
298 ngx_http_xslt_apply_stylesheet(r, ctx)); | |
299 } | |
300 | |
301 xmlFreeDoc(ctx->doc); | |
302 | |
303 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
304 "not well formed XML document"); | |
305 | |
306 return ngx_http_xslt_send(r, ctx, NULL); | |
307 } | |
308 } | |
309 | |
310 return NGX_OK; | |
311 } | |
312 | |
313 | |
314 static ngx_int_t | |
315 ngx_http_xslt_send(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
316 ngx_buf_t *b) | |
317 { | |
318 ngx_int_t rc; | |
319 ngx_chain_t out; | |
320 ngx_pool_cleanup_t *cln; | |
321 | |
322 ctx->done = 1; | |
323 | |
324 if (b == NULL) { | |
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325 return ngx_http_filter_finalize_request(r, NULL, |
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326 NGX_HTTP_INTERNAL_SERVER_ERROR); |
2139 | 327 } |
328 | |
329 cln = ngx_pool_cleanup_add(r->pool, 0); | |
330 | |
331 if (cln == NULL) { | |
332 ngx_free(b->pos); | |
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333 return ngx_http_filter_finalize_request(r, NULL, |
2139 | 334 NGX_HTTP_INTERNAL_SERVER_ERROR); |
335 } | |
336 | |
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337 if (r == r->main) { |
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338 r->headers_out.content_length_n = b->last - b->pos; |
2139 | 339 |
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340 if (r->headers_out.content_length) { |
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341 r->headers_out.content_length->hash = 0; |
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342 r->headers_out.content_length = NULL; |
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343 } |
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344 |
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345 ngx_http_clear_last_modified(r); |
2139 | 346 } |
347 | |
348 rc = ngx_http_next_header_filter(r); | |
349 | |
350 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
351 ngx_free(b->pos); | |
352 return rc; | |
353 } | |
354 | |
355 cln->handler = ngx_http_xslt_cleanup; | |
356 cln->data = b->pos; | |
357 | |
358 out.buf = b; | |
359 out.next = NULL; | |
360 | |
361 return ngx_http_next_body_filter(r, &out); | |
362 } | |
363 | |
364 | |
365 static ngx_int_t | |
366 ngx_http_xslt_add_chunk(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
367 ngx_buf_t *b) | |
368 { | |
369 int err; | |
370 xmlSAXHandler *sax; | |
371 xmlParserCtxtPtr ctxt; | |
372 | |
373 if (ctx->ctxt == NULL) { | |
374 | |
375 ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL); | |
376 if (ctxt == NULL) { | |
377 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
378 "xmlCreatePushParserCtxt() failed"); | |
379 return NGX_ERROR; | |
380 } | |
381 | |
382 ctx->sax = ngx_palloc(r->pool, sizeof(xmlSAXHandler)); | |
383 if (ctx->sax == NULL) { | |
384 return NGX_ERROR; | |
385 } | |
386 | |
387 sax = ctxt->sax; | |
388 | |
389 ngx_memcpy(ctx->sax, sax, sizeof(xmlSAXHandler)); | |
390 | |
391 sax->startDocument = ngx_http_xslt_sax_start_document; | |
392 sax->endDocument = ngx_http_xslt_sax_end_document; | |
393 | |
394 sax->internalSubset = ngx_http_xslt_sax_internal_subset; | |
395 sax->externalSubset = ngx_http_xslt_sax_external_subset; | |
396 sax->entityDecl = ngx_http_xslt_sax_entity_decl; | |
397 sax->attributeDecl = ngx_http_xslt_sax_attribute_decl; | |
398 sax->elementDecl = ngx_http_xslt_sax_element_decl; | |
399 sax->notationDecl = ngx_http_xslt_sax_notation_decl; | |
400 sax->unparsedEntityDecl = ngx_http_xslt_sax_unparsed_entity_decl; | |
401 sax->setDocumentLocator = NULL; | |
402 | |
403 sax->startElementNs = ngx_http_xslt_sax_start_element; | |
404 sax->endElementNs = ngx_http_xslt_sax_end_element; | |
405 | |
406 sax->characters = ngx_http_xslt_sax_characters; | |
3115 | 407 sax->ignorableWhitespace = ngx_http_xslt_sax_characters; |
2139 | 408 sax->cdataBlock = ngx_http_xslt_sax_cdata_block; |
409 sax->getEntity = ngx_http_xslt_sax_get_entity; | |
410 sax->resolveEntity = ngx_http_xslt_sax_resolve_entity; | |
411 sax->getParameterEntity = ngx_http_xslt_sax_get_parameter_entity; | |
412 sax->reference = ngx_http_xslt_sax_reference; | |
413 sax->comment = ngx_http_xslt_sax_comment; | |
414 sax->processingInstruction = ngx_http_xslt_sax_processing_instruction; | |
415 | |
416 sax->isStandalone = ngx_http_xslt_sax_is_standalone; | |
417 sax->hasInternalSubset = ngx_http_xslt_sax_has_internal_subset; | |
418 sax->hasExternalSubset = ngx_http_xslt_sax_has_external_subset; | |
419 | |
420 sax->warning = NULL; | |
421 sax->error = ngx_http_xslt_sax_error; | |
422 sax->fatalError = ngx_http_xslt_sax_error; | |
423 | |
424 ctxt->userData = ctx; | |
425 | |
426 ctxt->replaceEntities = 1; | |
427 ctxt->loadsubset = 1; | |
428 | |
429 ctx->ctxt = ctxt; | |
430 ctx->request = r; | |
431 } | |
432 | |
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433 err = xmlParseChunk(ctx->ctxt, (char *) b->pos, (int) (b->last - b->pos), |
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434 (b->last_buf) || (b->last_in_chain)); |
2139 | 435 |
436 if (err == 0) { | |
437 b->pos = b->last; | |
438 return NGX_OK; | |
439 } | |
440 | |
441 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
442 "xmlParseChunk() failed, error:%d", err); | |
443 | |
444 return NGX_ERROR; | |
445 } | |
446 | |
447 | |
448 static void | |
449 ngx_http_xslt_sax_start_document(void *data) | |
450 { | |
451 ngx_http_xslt_filter_ctx_t *ctx = data; | |
452 | |
453 ctx->sax->startDocument(ctx->ctxt); | |
454 } | |
455 | |
456 | |
457 static void | |
458 ngx_http_xslt_sax_end_document(void *data) | |
459 { | |
460 ngx_http_xslt_filter_ctx_t *ctx = data; | |
461 | |
462 ctx->sax->endDocument(ctx->ctxt); | |
463 } | |
464 | |
465 | |
466 static void | |
467 ngx_http_xslt_sax_internal_subset(void *data, const xmlChar *name, | |
468 const xmlChar *externalId, const xmlChar *systemId) | |
469 { | |
470 ngx_http_xslt_filter_ctx_t *ctx = data; | |
471 | |
472 ctx->sax->internalSubset(ctx->ctxt, name, externalId, systemId); | |
473 } | |
474 | |
475 | |
476 static void | |
477 ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
478 const xmlChar *externalId, const xmlChar *systemId) | |
479 { | |
480 ngx_http_xslt_filter_ctx_t *ctx = data; | |
481 | |
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482 xmlDocPtr doc; |
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483 xmlDtdPtr dtd; |
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484 ngx_http_request_t *r; |
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485 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 486 |
487 r = ctx->request; | |
488 | |
489 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
490 | |
491 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
492 "xslt filter extSubset: \"%s\" \"%s\" \"%s\"", | |
493 name ? name : (xmlChar *) "", | |
494 externalId ? externalId : (xmlChar *) "", | |
495 systemId ? systemId : (xmlChar *) ""); | |
496 | |
497 doc = ctx->ctxt->myDoc; | |
498 | |
499 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
500 | |
501 dtd = conf->dtd; | |
502 | |
503 #else | |
504 | |
505 dtd = xmlCopyDtd(conf->dtd); | |
506 if (dtd == NULL) { | |
507 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
508 "xmlCopyDtd() failed"); | |
509 return; | |
510 } | |
511 | |
512 if (doc->children == NULL) { | |
513 xmlAddChild((xmlNodePtr) doc, (xmlNodePtr) dtd); | |
514 | |
515 } else { | |
516 xmlAddPrevSibling(doc->children, (xmlNodePtr) dtd); | |
517 } | |
518 | |
519 #endif | |
520 | |
521 doc->extSubset = dtd; | |
522 } | |
523 | |
524 | |
525 static void | |
526 ngx_http_xslt_sax_entity_decl(void *data, const xmlChar *name, int type, | |
527 const xmlChar *publicId, const xmlChar *systemId, xmlChar *content) | |
528 { | |
529 ngx_http_xslt_filter_ctx_t *ctx = data; | |
530 | |
531 ctx->sax->entityDecl(ctx->ctxt, name, type, publicId, systemId, content); | |
532 } | |
533 | |
534 | |
535 static void | |
536 ngx_http_xslt_sax_attribute_decl(void *data, const xmlChar *elem, | |
537 const xmlChar *fullname, int type, int def, const xmlChar *defaultValue, | |
538 xmlEnumerationPtr tree) | |
539 { | |
540 ngx_http_xslt_filter_ctx_t *ctx = data; | |
541 | |
542 ctx->sax->attributeDecl(ctx->ctxt, elem, fullname, type, def, defaultValue, | |
543 tree); | |
544 } | |
545 | |
546 | |
547 static void | |
548 ngx_http_xslt_sax_element_decl(void *data, const xmlChar * name, int type, | |
549 xmlElementContentPtr content) | |
550 { | |
551 ngx_http_xslt_filter_ctx_t *ctx = data; | |
552 | |
553 ctx->sax->elementDecl(ctx->ctxt, name, type, content); | |
554 } | |
555 | |
556 | |
557 static void | |
558 ngx_http_xslt_sax_notation_decl(void *data, const xmlChar *name, | |
559 const xmlChar *publicId, const xmlChar *systemId) | |
560 { | |
561 ngx_http_xslt_filter_ctx_t *ctx = data; | |
562 | |
563 ctx->sax->notationDecl(ctx->ctxt, name, publicId, systemId); | |
564 } | |
565 | |
566 | |
567 static void | |
568 ngx_http_xslt_sax_unparsed_entity_decl(void *data, const xmlChar *name, | |
569 const xmlChar *publicId, const xmlChar *systemId, | |
570 const xmlChar *notationName) | |
571 { | |
572 ngx_http_xslt_filter_ctx_t *ctx = data; | |
573 | |
574 ctx->sax->unparsedEntityDecl(ctx->ctxt, name, publicId, systemId, | |
575 notationName); | |
576 } | |
577 | |
578 | |
579 static void | |
580 ngx_http_xslt_sax_start_element(void *data, const xmlChar *localname, | |
581 const xmlChar *prefix, const xmlChar *URI, int nb_namespaces, | |
582 const xmlChar **namespaces, int nb_attributes, int nb_defaulted, | |
583 const xmlChar **attributes) | |
584 { | |
585 ngx_http_xslt_filter_ctx_t *ctx = data; | |
586 | |
587 ctx->sax->startElementNs(ctx->ctxt, localname, prefix, URI, nb_namespaces, | |
588 namespaces, nb_attributes, nb_defaulted, attributes); | |
589 } | |
590 | |
591 | |
592 static void | |
593 ngx_http_xslt_sax_end_element(void *data, | |
594 const xmlChar * localname ATTRIBUTE_UNUSED, | |
595 const xmlChar * prefix ATTRIBUTE_UNUSED, | |
596 const xmlChar * URI ATTRIBUTE_UNUSED) | |
597 { | |
598 ngx_http_xslt_filter_ctx_t *ctx = data; | |
599 | |
600 ctx->sax->endElementNs(ctx->ctxt, localname, prefix, URI); | |
601 } | |
602 | |
603 | |
604 static void | |
605 ngx_http_xslt_sax_characters(void *data, const xmlChar *p, int len) | |
606 { | |
607 ngx_http_xslt_filter_ctx_t *ctx = data; | |
608 | |
609 ctx->sax->characters(ctx->ctxt, p, len); | |
610 } | |
611 | |
612 | |
613 static void | |
614 ngx_http_xslt_sax_cdata_block(void *data, const xmlChar *p, int len) | |
615 { | |
616 ngx_http_xslt_filter_ctx_t *ctx = data; | |
617 | |
618 ctx->sax->cdataBlock(ctx->ctxt, p, len); | |
619 } | |
620 | |
621 | |
622 static xmlEntityPtr | |
623 ngx_http_xslt_sax_get_entity(void *data, const xmlChar *name) | |
624 { | |
625 ngx_http_xslt_filter_ctx_t *ctx = data; | |
626 | |
627 return ctx->sax->getEntity(ctx->ctxt, name); | |
628 } | |
629 | |
630 | |
631 static xmlEntityPtr | |
632 ngx_http_xslt_sax_get_parameter_entity(void *data, const xmlChar *name) | |
633 { | |
634 ngx_http_xslt_filter_ctx_t *ctx = data; | |
635 | |
636 return ctx->sax->getParameterEntity(ctx->ctxt, name); | |
637 } | |
638 | |
639 | |
640 static xmlParserInputPtr | |
641 ngx_http_xslt_sax_resolve_entity(void *data, const xmlChar *publicId, | |
642 const xmlChar *systemId) | |
643 { | |
644 ngx_http_xslt_filter_ctx_t *ctx = data; | |
645 | |
646 return ctx->sax->resolveEntity(ctx->ctxt, publicId, systemId); | |
647 } | |
648 | |
649 | |
650 static void | |
651 ngx_http_xslt_sax_reference(void *data, const xmlChar *name) | |
652 { | |
653 ngx_http_xslt_filter_ctx_t *ctx = data; | |
654 | |
655 ctx->sax->reference(ctx->ctxt, name); | |
656 } | |
657 | |
658 | |
659 static void | |
660 ngx_http_xslt_sax_comment(void *data, const xmlChar *value) | |
661 { | |
662 ngx_http_xslt_filter_ctx_t *ctx = data; | |
663 | |
664 ctx->sax->comment(ctx->ctxt, value); | |
665 } | |
666 | |
667 | |
668 static void | |
669 ngx_http_xslt_sax_processing_instruction(void *data, const xmlChar *target, | |
670 const xmlChar *pidata) | |
671 { | |
672 ngx_http_xslt_filter_ctx_t *ctx = data; | |
673 | |
674 ctx->sax->processingInstruction(ctx->ctxt, target, pidata); | |
675 } | |
676 | |
677 | |
678 static int | |
679 ngx_http_xslt_sax_is_standalone(void *data) | |
680 { | |
681 ngx_http_xslt_filter_ctx_t *ctx = data; | |
682 | |
683 return ctx->sax->isStandalone(ctx->ctxt); | |
684 } | |
685 | |
686 | |
687 static int | |
688 ngx_http_xslt_sax_has_internal_subset(void *data) | |
689 { | |
690 ngx_http_xslt_filter_ctx_t *ctx = data; | |
691 | |
692 return ctx->sax->hasInternalSubset(ctx->ctxt); | |
693 } | |
694 | |
695 | |
696 static int | |
697 ngx_http_xslt_sax_has_external_subset(void *data) | |
698 { | |
699 ngx_http_xslt_filter_ctx_t *ctx = data; | |
700 | |
701 return ctx->sax->hasExternalSubset(ctx->ctxt); | |
702 } | |
703 | |
704 | |
705 static void ngx_cdecl | |
706 ngx_http_xslt_sax_error(void *data, const char *msg, ...) | |
707 { | |
708 ngx_http_xslt_filter_ctx_t *ctx = data; | |
709 | |
710 size_t n; | |
711 va_list args; | |
712 u_char buf[NGX_MAX_ERROR_STR]; | |
713 | |
714 buf[0] = '\0'; | |
715 | |
716 va_start(args, msg); | |
717 n = (size_t) vsnprintf((char *) buf, NGX_MAX_ERROR_STR, msg, args); | |
718 va_end(args); | |
719 | |
720 while (--n && (buf[n] == CR || buf[n] == LF)) { /* void */ } | |
721 | |
722 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
2999 | 723 "libxml2 error: \"%*s\"", n + 1, buf); |
2139 | 724 } |
725 | |
726 | |
727 static ngx_buf_t * | |
728 ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
729 ngx_http_xslt_filter_ctx_t *ctx) | |
730 { | |
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731 int len, rc, doc_type; |
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732 u_char *type, *encoding; |
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733 ngx_buf_t *b; |
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734 ngx_uint_t i; |
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735 xmlChar *buf; |
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736 xmlDocPtr doc, res; |
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737 ngx_http_xslt_sheet_t *sheet; |
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738 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 739 |
740 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
741 sheet = conf->sheets.elts; | |
742 doc = ctx->doc; | |
743 | |
744 /* preallocate array for 4 params */ | |
745 | |
746 if (ngx_array_init(&ctx->params, r->pool, 4 * 2 + 1, sizeof(char *)) | |
747 != NGX_OK) | |
748 { | |
749 xmlFreeDoc(doc); | |
750 return NULL; | |
751 } | |
752 | |
753 for (i = 0; i < conf->sheets.nelts; i++) { | |
754 | |
755 if (ngx_http_xslt_params(r, ctx, &sheet[i].params) != NGX_OK) { | |
756 xmlFreeDoc(doc); | |
757 return NULL; | |
758 } | |
759 | |
760 res = xsltApplyStylesheet(sheet[i].stylesheet, doc, ctx->params.elts); | |
761 | |
762 xmlFreeDoc(doc); | |
763 | |
764 if (res == NULL) { | |
765 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
766 "xsltApplyStylesheet() failed"); | |
767 return NULL; | |
768 } | |
769 | |
770 doc = res; | |
771 | |
772 /* reset array elements */ | |
773 ctx->params.nelts = 0; | |
774 } | |
775 | |
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776 /* there must be at least one stylesheet */ |
2139 | 777 |
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778 if (r == r->main) { |
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779 type = ngx_http_xslt_content_type(sheet[i - 1].stylesheet); |
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780 |
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781 } else { |
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782 type = NULL; |
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783 } |
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784 |
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785 encoding = ngx_http_xslt_encoding(sheet[i - 1].stylesheet); |
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786 doc_type = doc->type; |
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787 |
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788 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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789 "xslt filter type: %d t:%s e:%s", |
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790 doc_type, type ? type : (u_char *) "(null)", |
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791 encoding ? encoding : (u_char *) "(null)"); |
2139 | 792 |
793 rc = xsltSaveResultToString(&buf, &len, doc, sheet[i - 1].stylesheet); | |
794 | |
795 xmlFreeDoc(doc); | |
796 | |
797 if (rc != 0) { | |
798 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
799 "xsltSaveResultToString() failed"); | |
800 return NULL; | |
801 } | |
802 | |
803 if (len == 0) { | |
804 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
805 "xsltSaveResultToString() returned zero-length result"); | |
806 return NULL; | |
807 } | |
808 | |
809 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
810 if (b == NULL) { | |
811 ngx_free(buf); | |
812 return NULL; | |
813 } | |
814 | |
815 b->pos = buf; | |
816 b->last = buf + len; | |
817 b->memory = 1; | |
818 | |
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819 if (encoding) { |
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820 r->headers_out.charset.len = ngx_strlen(encoding); |
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821 r->headers_out.charset.data = encoding; |
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822 } |
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823 |
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824 if (r != r->main) { |
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825 return b; |
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826 } |
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827 |
2899
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828 b->last_buf = 1; |
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829 |
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830 if (type) { |
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831 len = ngx_strlen(type); |
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832 |
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833 r->headers_out.content_type_len = len; |
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834 r->headers_out.content_type.len = len; |
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835 r->headers_out.content_type.data = type; |
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836 |
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837 } else if (doc_type == XML_HTML_DOCUMENT_NODE) { |
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838 |
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839 r->headers_out.content_type_len = sizeof("text/html") - 1; |
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840 r->headers_out.content_type.len = sizeof("text/html") - 1; |
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841 r->headers_out.content_type.data = (u_char *) "text/html"; |
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842 } |
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843 |
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844 r->headers_out.content_type_lowcase = NULL; |
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845 |
2139 | 846 return b; |
847 } | |
848 | |
849 | |
850 static ngx_int_t | |
851 ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
852 ngx_array_t *params) | |
853 { | |
2588
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854 u_char *p, *last, *value, *dst, *src, **s; |
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855 size_t len; |
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856 ngx_uint_t i; |
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857 ngx_str_t string; |
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858 ngx_http_complex_value_t *param; |
2139 | 859 |
860 param = params->elts; | |
861 | |
862 for (i = 0; i < params->nelts; i++) { | |
863 | |
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864 if (ngx_http_complex_value(r, ¶m[i], &string) != NGX_OK) { |
2139 | 865 return NGX_ERROR; |
866 } | |
867 | |
868 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
869 "xslt filter param: \"%s\"", string.data); | |
870 | |
871 p = string.data; | |
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872 last = string.data + string.len - 1; |
2139 | 873 |
874 while (p && *p) { | |
875 | |
876 value = p; | |
877 p = (u_char *) ngx_strchr(p, '='); | |
878 if (p == NULL) { | |
879 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
880 "invalid libxslt parameter \"%s\"", value); | |
881 return NGX_ERROR; | |
882 } | |
883 *p++ = '\0'; | |
884 | |
885 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
886 "xslt filter param name: \"%s\"", value); | |
887 | |
888 s = ngx_array_push(&ctx->params); | |
889 if (s == NULL) { | |
890 return NGX_ERROR; | |
891 } | |
892 | |
893 *s = value; | |
894 | |
895 value = p; | |
896 p = (u_char *) ngx_strchr(p, ':'); | |
897 | |
898 if (p) { | |
899 len = p - value; | |
900 *p++ = '\0'; | |
901 | |
902 } else { | |
903 len = last - value; | |
904 } | |
905 | |
906 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
907 "xslt filter param value: \"%s\"", value); | |
908 | |
909 dst = value; | |
910 src = value; | |
911 | |
912 ngx_unescape_uri(&dst, &src, len, 0); | |
913 | |
914 *dst = '\0'; | |
915 | |
916 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
917 "xslt filter param unescaped: \"%s\"", value); | |
918 | |
919 s = ngx_array_push(&ctx->params); | |
920 if (s == NULL) { | |
921 return NGX_ERROR; | |
922 } | |
923 | |
924 *s = value; | |
925 } | |
926 } | |
927 | |
928 s = ngx_array_push(&ctx->params); | |
929 if (s == NULL) { | |
930 return NGX_ERROR; | |
931 } | |
932 | |
933 *s = NULL; | |
934 | |
935 return NGX_OK; | |
936 } | |
937 | |
938 | |
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939 static u_char * |
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940 ngx_http_xslt_content_type(xsltStylesheetPtr s) |
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941 { |
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942 u_char *type; |
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943 |
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944 if (s->mediaType) { |
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945 return s->mediaType; |
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946 } |
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947 |
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948 for (s = s->imports; s; s = s->next) { |
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949 |
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950 type = ngx_http_xslt_content_type(s); |
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951 |
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952 if (type) { |
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953 return type; |
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954 } |
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955 } |
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956 |
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957 return NULL; |
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958 } |
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959 |
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960 |
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961 static u_char * |
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962 ngx_http_xslt_encoding(xsltStylesheetPtr s) |
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963 { |
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964 u_char *encoding; |
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965 |
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966 if (s->encoding) { |
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967 return s->encoding; |
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968 } |
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969 |
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970 for (s = s->imports; s; s = s->next) { |
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971 |
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972 encoding = ngx_http_xslt_encoding(s); |
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973 |
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974 if (encoding) { |
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975 return encoding; |
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976 } |
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977 } |
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978 |
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979 return NULL; |
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980 } |
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981 |
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982 |
2139 | 983 static void |
984 ngx_http_xslt_cleanup(void *data) | |
985 { | |
986 ngx_free(data); | |
987 } | |
988 | |
989 | |
990 static char * | |
991 ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
992 { | |
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993 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
2139 | 994 |
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995 ngx_str_t *value; |
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996 ngx_uint_t i; |
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997 ngx_pool_cleanup_t *cln; |
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998 ngx_http_xslt_file_t *file; |
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999 ngx_http_xslt_filter_main_conf_t *xmcf; |
2139 | 1000 |
1001 if (xlcf->dtd) { | |
1002 return "is duplicate"; | |
1003 } | |
1004 | |
1005 value = cf->args->elts; | |
1006 | |
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1007 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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1008 |
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1009 file = xmcf->dtd_files.elts; |
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1010 for (i = 0; i < xmcf->dtd_files.nelts; i++) { |
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1011 if (ngx_strcmp(file[i].name, &value[1].data) == 0) { |
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1012 xlcf->dtd = file[i].data; |
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1013 return NGX_CONF_OK; |
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1014 } |
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1015 } |
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1016 |
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1017 cln = ngx_pool_cleanup_add(cf->pool, 0); |
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1018 if (cln == NULL) { |
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1019 return NGX_CONF_ERROR; |
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1020 } |
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1021 |
2139 | 1022 xlcf->dtd = xmlParseDTD(NULL, (xmlChar *) value[1].data); |
1023 | |
1024 if (xlcf->dtd == NULL) { | |
1025 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, "xmlParseDTD() failed"); | |
1026 return NGX_CONF_ERROR; | |
1027 } | |
1028 | |
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1029 cln->handler = ngx_http_xslt_cleanup_dtd; |
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1030 cln->data = xlcf->dtd; |
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1031 |
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1032 file = ngx_array_push(&xmcf->dtd_files); |
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1033 if (file == NULL) { |
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1034 return NGX_CONF_ERROR; |
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1035 } |
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1036 |
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1037 file->name = value[1].data; |
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1038 file->data = xlcf->dtd; |
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1039 |
2139 | 1040 return NGX_CONF_OK; |
1041 } | |
1042 | |
1043 | |
1044 | |
1045 static char * | |
1046 ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
1047 { | |
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1048 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
2139 | 1049 |
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1050 ngx_str_t *value; |
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1051 ngx_uint_t i, n; |
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1052 ngx_pool_cleanup_t *cln; |
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1053 ngx_http_xslt_file_t *file; |
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1054 ngx_http_xslt_sheet_t *sheet; |
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1055 ngx_http_complex_value_t *param; |
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1056 ngx_http_compile_complex_value_t ccv; |
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1057 ngx_http_xslt_filter_main_conf_t *xmcf; |
2139 | 1058 |
1059 value = cf->args->elts; | |
1060 | |
1061 if (xlcf->sheets.elts == NULL) { | |
1062 if (ngx_array_init(&xlcf->sheets, cf->pool, 1, | |
1063 sizeof(ngx_http_xslt_sheet_t)) | |
1064 != NGX_OK) | |
1065 { | |
1066 return NGX_CONF_ERROR; | |
1067 } | |
1068 } | |
1069 | |
1070 sheet = ngx_array_push(&xlcf->sheets); | |
1071 if (sheet == NULL) { | |
1072 return NGX_CONF_ERROR; | |
1073 } | |
1074 | |
1075 ngx_memzero(sheet, sizeof(ngx_http_xslt_sheet_t)); | |
1076 | |
1077 if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) { | |
1078 return NGX_CONF_ERROR; | |
1079 } | |
1080 | |
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1081 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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1082 |
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1083 file = xmcf->sheet_files.elts; |
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1084 for (i = 0; i < xmcf->sheet_files.nelts; i++) { |
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1085 if (ngx_strcmp(file[i].name, &value[1].data) == 0) { |
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1086 sheet->stylesheet = file[i].data; |
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1087 goto found; |
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1088 } |
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1089 } |
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1090 |
2139 | 1091 cln = ngx_pool_cleanup_add(cf->pool, 0); |
1092 if (cln == NULL) { | |
1093 return NGX_CONF_ERROR; | |
1094 } | |
1095 | |
1096 sheet->stylesheet = xsltParseStylesheetFile(value[1].data); | |
1097 if (sheet->stylesheet == NULL) { | |
1098 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
1099 "xsltParseStylesheetFile(\"%s\") failed", | |
1100 value[1].data); | |
1101 return NGX_CONF_ERROR; | |
1102 } | |
1103 | |
1104 cln->handler = ngx_http_xslt_cleanup_stylesheet; | |
1105 cln->data = sheet->stylesheet; | |
1106 | |
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1107 file = ngx_array_push(&xmcf->sheet_files); |
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1108 if (file == NULL) { |
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1109 return NGX_CONF_ERROR; |
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1110 } |
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1111 |
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1112 file->name = value[1].data; |
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1113 file->data = sheet->stylesheet; |
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1114 |
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1115 found: |
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1116 |
2139 | 1117 n = cf->args->nelts; |
1118 | |
1119 if (n == 2) { | |
1120 return NGX_CONF_OK; | |
1121 } | |
1122 | |
1123 if (ngx_array_init(&sheet->params, cf->pool, n - 2, | |
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1124 sizeof(ngx_http_complex_value_t)) |
2139 | 1125 != NGX_OK) |
1126 { | |
1127 return NGX_CONF_ERROR; | |
1128 } | |
1129 | |
1130 for (i = 2; i < n; i++) { | |
1131 | |
1132 param = ngx_array_push(&sheet->params); | |
1133 if (param == NULL) { | |
1134 return NGX_CONF_ERROR; | |
1135 } | |
1136 | |
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1137 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
2139 | 1138 |
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1139 ccv.cf = cf; |
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1140 ccv.value = &value[i]; |
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1141 ccv.complex_value = param; |
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1142 ccv.zero = 1; |
2139 | 1143 |
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1144 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
2139 | 1145 return NGX_CONF_ERROR; |
1146 } | |
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1147 |
2139 | 1148 } |
1149 | |
1150 return NGX_CONF_OK; | |
1151 } | |
1152 | |
1153 | |
1154 static void | |
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1155 ngx_http_xslt_cleanup_dtd(void *data) |
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1156 { |
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1157 xmlFreeDtd(data); |
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1158 } |
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1159 |
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1160 |
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1161 static void |
2139 | 1162 ngx_http_xslt_cleanup_stylesheet(void *data) |
1163 { | |
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1164 xsltFreeStylesheet(data); |
2139 | 1165 } |
1166 | |
1167 | |
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1168 static void * |
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1169 ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf) |
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1170 { |
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1171 ngx_http_xslt_filter_main_conf_t *conf; |
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1172 |
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1173 conf = ngx_palloc(cf->pool, sizeof(ngx_http_xslt_filter_main_conf_t)); |
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1174 if (conf == NULL) { |
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1175 return NULL; |
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1176 } |
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1177 |
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1178 if (ngx_array_init(&conf->dtd_files, cf->pool, 1, |
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1179 sizeof(ngx_http_xslt_file_t)) |
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1180 != NGX_OK) |
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1181 { |
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1182 return NULL; |
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1183 } |
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1184 |
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1185 if (ngx_array_init(&conf->sheet_files, cf->pool, 1, |
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1186 sizeof(ngx_http_xslt_file_t)) |
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1187 != NGX_OK) |
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1188 { |
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1189 return NULL; |
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1190 } |
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1191 |
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1192 return conf; |
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1193 } |
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1194 |
2139 | 1195 |
1196 static void * | |
1197 ngx_http_xslt_filter_create_conf(ngx_conf_t *cf) | |
1198 { | |
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1199 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 1200 |
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1201 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_xslt_filter_loc_conf_t)); |
2139 | 1202 if (conf == NULL) { |
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1203 return NULL; |
2139 | 1204 } |
1205 | |
1206 /* | |
1207 * set by ngx_pcalloc(): | |
1208 * | |
2148 | 1209 * conf->dtd = NULL; |
1210 * conf->sheets = { NULL }; | |
1211 * conf->types = { NULL }; | |
1212 * conf->types_keys = NULL; | |
2139 | 1213 */ |
1214 | |
1215 return conf; | |
1216 } | |
1217 | |
1218 | |
1219 static char * | |
1220 ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
1221 { | |
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1222 ngx_http_xslt_filter_loc_conf_t *prev = parent; |
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1223 ngx_http_xslt_filter_loc_conf_t *conf = child; |
2139 | 1224 |
1225 if (conf->dtd == NULL) { | |
1226 conf->dtd = prev->dtd; | |
1227 } | |
1228 | |
1229 if (conf->sheets.nelts == 0) { | |
1230 conf->sheets = prev->sheets; | |
1231 } | |
1232 | |
2148 | 1233 if (ngx_http_merge_types(cf, conf->types_keys, &conf->types, |
1234 prev->types_keys, &prev->types, | |
1235 ngx_http_xslt_default_types) | |
2139 | 1236 != NGX_OK) |
1237 { | |
1238 return NGX_CONF_ERROR; | |
1239 } | |
1240 | |
1241 return NGX_CONF_OK; | |
1242 } | |
1243 | |
1244 | |
1245 static ngx_int_t | |
1246 ngx_http_xslt_filter_init(ngx_conf_t *cf) | |
1247 { | |
1248 xmlInitParser(); | |
1249 | |
2299 | 1250 #if (NGX_HAVE_EXSLT) |
1251 exsltRegisterAll(); | |
1252 #endif | |
1253 | |
2139 | 1254 ngx_http_next_header_filter = ngx_http_top_header_filter; |
1255 ngx_http_top_header_filter = ngx_http_xslt_header_filter; | |
1256 | |
1257 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
1258 ngx_http_top_body_filter = ngx_http_xslt_body_filter; | |
1259 | |
1260 return NGX_OK; | |
1261 } | |
1262 | |
1263 | |
1264 static void | |
1265 ngx_http_xslt_filter_exit(ngx_cycle_t *cycle) | |
1266 { | |
1267 xsltCleanupGlobals(); | |
1268 xmlCleanupParser(); | |
1269 } |