Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_xslt_filter_module.c @ 5230:2139768ee404
Xslt: xslt_last_modified directive.
Directive is similar to ssi_last_modified and sub_filter_last_modified
directives introduced by previous commits.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Fri, 24 May 2013 22:28:09 +0400 |
| parents | 2570296374b4 |
| children | e939f6e8548c |
| rev | line source |
|---|---|
| 2139 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
| 2139 | 5 */ |
| 6 | |
| 7 | |
| 8 #include <ngx_config.h> | |
| 9 #include <ngx_core.h> | |
| 10 #include <ngx_http.h> | |
| 11 | |
| 12 #include <libxml/parser.h> | |
| 13 #include <libxml/tree.h> | |
| 14 #include <libxslt/xslt.h> | |
| 15 #include <libxslt/xsltInternals.h> | |
| 16 #include <libxslt/transform.h> | |
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17 #include <libxslt/variables.h> |
| 2139 | 18 #include <libxslt/xsltutils.h> |
| 19 | |
| 2299 | 20 #if (NGX_HAVE_EXSLT) |
| 21 #include <libexslt/exslt.h> | |
| 22 #endif | |
| 23 | |
| 2139 | 24 |
| 25 #ifndef NGX_HTTP_XSLT_REUSE_DTD | |
| 26 #define NGX_HTTP_XSLT_REUSE_DTD 1 | |
| 27 #endif | |
| 28 | |
| 29 | |
| 30 typedef struct { | |
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31 u_char *name; |
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32 void *data; |
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33 } ngx_http_xslt_file_t; |
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34 |
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35 |
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36 typedef struct { |
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37 ngx_array_t dtd_files; /* ngx_http_xslt_file_t */ |
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38 ngx_array_t sheet_files; /* ngx_http_xslt_file_t */ |
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39 } ngx_http_xslt_filter_main_conf_t; |
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40 |
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41 |
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42 typedef struct { |
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43 u_char *name; |
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44 ngx_http_complex_value_t value; |
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45 ngx_uint_t quote; /* unsigned quote:1; */ |
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46 } ngx_http_xslt_param_t; |
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47 |
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48 |
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49 typedef struct { |
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50 xsltStylesheetPtr stylesheet; |
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51 ngx_array_t params; /* ngx_http_xslt_param_t */ |
| 2139 | 52 } ngx_http_xslt_sheet_t; |
| 53 | |
| 54 | |
| 55 typedef struct { | |
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56 xmlDtdPtr dtd; |
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57 ngx_array_t sheets; /* ngx_http_xslt_sheet_t */ |
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58 ngx_hash_t types; |
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59 ngx_array_t *types_keys; |
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60 ngx_array_t *params; /* ngx_http_xslt_param_t */ |
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61 ngx_flag_t last_modified; |
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62 } ngx_http_xslt_filter_loc_conf_t; |
| 2139 | 63 |
| 64 | |
| 65 typedef struct { | |
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66 xmlDocPtr doc; |
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67 xmlParserCtxtPtr ctxt; |
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68 xsltTransformContextPtr transform; |
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69 ngx_http_request_t *request; |
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70 ngx_array_t params; |
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71 |
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72 ngx_uint_t done; /* unsigned done:1; */ |
| 2139 | 73 } ngx_http_xslt_filter_ctx_t; |
| 74 | |
| 75 | |
| 76 static ngx_int_t ngx_http_xslt_send(ngx_http_request_t *r, | |
| 77 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b); | |
| 78 static ngx_int_t ngx_http_xslt_add_chunk(ngx_http_request_t *r, | |
| 79 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b); | |
| 80 | |
| 81 | |
| 82 static void ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
| 83 const xmlChar *externalId, const xmlChar *systemId); | |
| 84 static void ngx_cdecl ngx_http_xslt_sax_error(void *data, const char *msg, ...); | |
| 85 | |
| 86 | |
| 87 static ngx_buf_t *ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
| 88 ngx_http_xslt_filter_ctx_t *ctx); | |
| 89 static ngx_int_t ngx_http_xslt_params(ngx_http_request_t *r, | |
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90 ngx_http_xslt_filter_ctx_t *ctx, ngx_array_t *params, ngx_uint_t final); |
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91 static u_char *ngx_http_xslt_content_type(xsltStylesheetPtr s); |
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92 static u_char *ngx_http_xslt_encoding(xsltStylesheetPtr s); |
| 2139 | 93 static void ngx_http_xslt_cleanup(void *data); |
| 94 | |
| 95 static char *ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 96 void *conf); | |
| 97 static char *ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 98 void *conf); | |
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99 static char *ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, |
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100 void *conf); |
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101 static void ngx_http_xslt_cleanup_dtd(void *data); |
| 2139 | 102 static void ngx_http_xslt_cleanup_stylesheet(void *data); |
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103 static void *ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf); |
| 2139 | 104 static void *ngx_http_xslt_filter_create_conf(ngx_conf_t *cf); |
| 105 static char *ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, | |
| 106 void *child); | |
| 107 static ngx_int_t ngx_http_xslt_filter_init(ngx_conf_t *cf); | |
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108 static void ngx_http_xslt_filter_exit(ngx_cycle_t *cycle); |
| 2139 | 109 |
| 110 | |
| 111 ngx_str_t ngx_http_xslt_default_types[] = { | |
| 112 ngx_string("text/xml"), | |
| 113 ngx_null_string | |
| 114 }; | |
| 115 | |
| 116 | |
| 117 static ngx_command_t ngx_http_xslt_filter_commands[] = { | |
| 118 | |
| 119 { ngx_string("xml_entities"), | |
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120 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| 2139 | 121 ngx_http_xslt_entities, |
| 122 NGX_HTTP_LOC_CONF_OFFSET, | |
| 123 0, | |
| 124 NULL }, | |
| 125 | |
| 126 { ngx_string("xslt_stylesheet"), | |
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127 NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
| 2139 | 128 ngx_http_xslt_stylesheet, |
| 129 NGX_HTTP_LOC_CONF_OFFSET, | |
| 130 0, | |
| 131 NULL }, | |
| 132 | |
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133 { ngx_string("xslt_param"), |
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134 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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135 ngx_http_xslt_param, |
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136 NGX_HTTP_LOC_CONF_OFFSET, |
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137 0, |
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138 NULL }, |
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139 |
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140 { ngx_string("xslt_string_param"), |
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141 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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142 ngx_http_xslt_param, |
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143 NGX_HTTP_LOC_CONF_OFFSET, |
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144 0, |
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145 (void *) 1 }, |
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146 |
| 2139 | 147 { ngx_string("xslt_types"), |
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148 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
| 2139 | 149 ngx_http_types_slot, |
| 150 NGX_HTTP_LOC_CONF_OFFSET, | |
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151 offsetof(ngx_http_xslt_filter_loc_conf_t, types_keys), |
| 2139 | 152 &ngx_http_xslt_default_types[0] }, |
| 153 | |
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154 { ngx_string("xslt_last_modified"), |
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155 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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156 ngx_conf_set_flag_slot, |
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157 NGX_HTTP_LOC_CONF_OFFSET, |
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158 offsetof(ngx_http_xslt_filter_loc_conf_t, last_modified), |
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159 NULL }, |
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160 |
| 2139 | 161 ngx_null_command |
| 162 }; | |
| 163 | |
| 164 | |
| 165 static ngx_http_module_t ngx_http_xslt_filter_module_ctx = { | |
| 166 NULL, /* preconfiguration */ | |
| 167 ngx_http_xslt_filter_init, /* postconfiguration */ | |
| 168 | |
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169 ngx_http_xslt_filter_create_main_conf, /* create main configuration */ |
| 2139 | 170 NULL, /* init main configuration */ |
| 171 | |
| 172 NULL, /* create server configuration */ | |
| 173 NULL, /* merge server configuration */ | |
| 174 | |
| 175 ngx_http_xslt_filter_create_conf, /* create location configuration */ | |
| 176 ngx_http_xslt_filter_merge_conf /* merge location configuration */ | |
| 177 }; | |
| 178 | |
| 179 | |
| 180 ngx_module_t ngx_http_xslt_filter_module = { | |
| 181 NGX_MODULE_V1, | |
| 182 &ngx_http_xslt_filter_module_ctx, /* module context */ | |
| 183 ngx_http_xslt_filter_commands, /* module directives */ | |
| 184 NGX_HTTP_MODULE, /* module type */ | |
| 185 NULL, /* init master */ | |
| 186 NULL, /* init module */ | |
| 187 NULL, /* init process */ | |
| 188 NULL, /* init thread */ | |
| 189 NULL, /* exit thread */ | |
| 2983 | 190 ngx_http_xslt_filter_exit, /* exit process */ |
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191 ngx_http_xslt_filter_exit, /* exit master */ |
| 2139 | 192 NGX_MODULE_V1_PADDING |
| 193 }; | |
| 194 | |
| 195 | |
| 196 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; | |
| 197 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; | |
| 198 | |
| 199 | |
| 200 static ngx_int_t | |
| 201 ngx_http_xslt_header_filter(ngx_http_request_t *r) | |
| 202 { | |
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203 ngx_http_xslt_filter_ctx_t *ctx; |
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204 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 205 |
| 206 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 207 "xslt filter header"); | |
| 208 | |
| 209 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) { | |
| 210 return ngx_http_next_header_filter(r); | |
| 211 } | |
| 212 | |
| 213 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 214 | |
| 215 if (conf->sheets.nelts == 0 | |
| 2148 | 216 || ngx_http_test_content_type(r, &conf->types) == NULL) |
| 2139 | 217 { |
| 218 return ngx_http_next_header_filter(r); | |
| 219 } | |
| 220 | |
| 221 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
| 222 | |
| 223 if (ctx) { | |
| 224 return ngx_http_next_header_filter(r); | |
| 225 } | |
| 226 | |
| 227 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_xslt_filter_ctx_t)); | |
| 228 if (ctx == NULL) { | |
| 229 return NGX_ERROR; | |
| 230 } | |
| 231 | |
| 232 ngx_http_set_ctx(r, ctx, ngx_http_xslt_filter_module); | |
| 233 | |
| 234 r->main_filter_need_in_memory = 1; | |
| 235 | |
| 236 return NGX_OK; | |
| 237 } | |
| 238 | |
| 239 | |
| 240 static ngx_int_t | |
| 241 ngx_http_xslt_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
| 242 { | |
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243 int wellFormed; |
| 2139 | 244 ngx_chain_t *cl; |
| 245 ngx_http_xslt_filter_ctx_t *ctx; | |
| 246 | |
| 247 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 248 "xslt filter body"); | |
| 249 | |
| 250 if (in == NULL) { | |
| 251 return ngx_http_next_body_filter(r, in); | |
| 252 } | |
| 253 | |
| 254 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
| 255 | |
| 256 if (ctx == NULL || ctx->done) { | |
| 257 return ngx_http_next_body_filter(r, in); | |
| 258 } | |
| 259 | |
| 260 for (cl = in; cl; cl = cl->next) { | |
| 261 | |
| 262 if (ngx_http_xslt_add_chunk(r, ctx, cl->buf) != NGX_OK) { | |
| 263 | |
| 3642 | 264 if (ctx->ctxt->myDoc) { |
| 2139 | 265 |
| 266 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 267 ctx->ctxt->myDoc->extSubset = NULL; | |
| 268 #endif | |
| 269 xmlFreeDoc(ctx->ctxt->myDoc); | |
| 270 } | |
| 271 | |
| 272 xmlFreeParserCtxt(ctx->ctxt); | |
| 273 | |
| 274 return ngx_http_xslt_send(r, ctx, NULL); | |
| 275 } | |
| 276 | |
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277 if (cl->buf->last_buf || cl->buf->last_in_chain) { |
| 2139 | 278 |
| 279 ctx->doc = ctx->ctxt->myDoc; | |
| 280 | |
| 281 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 282 ctx->doc->extSubset = NULL; | |
| 283 #endif | |
| 284 | |
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285 wellFormed = ctx->ctxt->wellFormed; |
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286 |
| 2139 | 287 xmlFreeParserCtxt(ctx->ctxt); |
| 288 | |
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289 if (wellFormed) { |
| 2139 | 290 return ngx_http_xslt_send(r, ctx, |
| 291 ngx_http_xslt_apply_stylesheet(r, ctx)); | |
| 292 } | |
| 293 | |
| 294 xmlFreeDoc(ctx->doc); | |
| 295 | |
| 296 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 297 "not well formed XML document"); | |
| 298 | |
| 299 return ngx_http_xslt_send(r, ctx, NULL); | |
| 300 } | |
| 301 } | |
| 302 | |
| 303 return NGX_OK; | |
| 304 } | |
| 305 | |
| 306 | |
| 307 static ngx_int_t | |
| 308 ngx_http_xslt_send(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
| 309 ngx_buf_t *b) | |
| 310 { | |
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311 ngx_int_t rc; |
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312 ngx_chain_t out; |
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313 ngx_pool_cleanup_t *cln; |
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314 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 315 |
| 316 ctx->done = 1; | |
| 317 | |
| 318 if (b == NULL) { | |
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319 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
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320 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 2139 | 321 } |
| 322 | |
| 323 cln = ngx_pool_cleanup_add(r->pool, 0); | |
| 324 | |
| 325 if (cln == NULL) { | |
| 326 ngx_free(b->pos); | |
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327 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
| 2139 | 328 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 329 } | |
| 330 | |
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331 if (r == r->main) { |
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332 r->headers_out.content_length_n = b->last - b->pos; |
| 2139 | 333 |
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334 if (r->headers_out.content_length) { |
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335 r->headers_out.content_length->hash = 0; |
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336 r->headers_out.content_length = NULL; |
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337 } |
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338 |
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339 ngx_http_clear_etag(r); |
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340 |
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341 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); |
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342 |
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343 if (!conf->last_modified) { |
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344 ngx_http_clear_last_modified(r); |
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345 } |
| 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 { | |
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369 int err; |
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370 xmlParserCtxtPtr ctxt; |
| 2139 | 371 |
| 372 if (ctx->ctxt == NULL) { | |
| 373 | |
| 374 ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL); | |
| 375 if (ctxt == NULL) { | |
| 376 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 377 "xmlCreatePushParserCtxt() failed"); | |
| 378 return NGX_ERROR; | |
| 379 } | |
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380 xmlCtxtUseOptions(ctxt, XML_PARSE_NOENT|XML_PARSE_DTDLOAD |
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381 |XML_PARSE_NOWARNING); |
| 2139 | 382 |
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383 ctxt->sax->externalSubset = ngx_http_xslt_sax_external_subset; |
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384 ctxt->sax->setDocumentLocator = NULL; |
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385 ctxt->sax->error = ngx_http_xslt_sax_error; |
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386 ctxt->sax->fatalError = ngx_http_xslt_sax_error; |
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387 ctxt->sax->_private = ctx; |
| 2139 | 388 |
| 389 ctx->ctxt = ctxt; | |
| 390 ctx->request = r; | |
| 391 } | |
| 392 | |
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393 err = xmlParseChunk(ctx->ctxt, (char *) b->pos, (int) (b->last - b->pos), |
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394 (b->last_buf) || (b->last_in_chain)); |
| 2139 | 395 |
| 396 if (err == 0) { | |
| 397 b->pos = b->last; | |
| 398 return NGX_OK; | |
| 399 } | |
| 400 | |
| 401 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 402 "xmlParseChunk() failed, error:%d", err); | |
| 403 | |
| 404 return NGX_ERROR; | |
| 405 } | |
| 406 | |
| 407 | |
| 408 static void | |
| 409 ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
| 410 const xmlChar *externalId, const xmlChar *systemId) | |
| 411 { | |
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412 xmlParserCtxtPtr ctxt = data; |
| 2139 | 413 |
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414 xmlDocPtr doc; |
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415 xmlDtdPtr dtd; |
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416 ngx_http_request_t *r; |
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417 ngx_http_xslt_filter_ctx_t *ctx; |
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418 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 419 |
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420 ctx = ctxt->sax->_private; |
| 2139 | 421 r = ctx->request; |
| 422 | |
| 423 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 424 | |
| 425 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 426 "xslt filter extSubset: \"%s\" \"%s\" \"%s\"", | |
| 427 name ? name : (xmlChar *) "", | |
| 428 externalId ? externalId : (xmlChar *) "", | |
| 429 systemId ? systemId : (xmlChar *) ""); | |
| 430 | |
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431 doc = ctxt->myDoc; |
| 2139 | 432 |
| 433 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 434 | |
| 435 dtd = conf->dtd; | |
| 436 | |
| 437 #else | |
| 438 | |
| 439 dtd = xmlCopyDtd(conf->dtd); | |
| 440 if (dtd == NULL) { | |
| 441 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 442 "xmlCopyDtd() failed"); | |
| 443 return; | |
| 444 } | |
| 445 | |
| 446 if (doc->children == NULL) { | |
| 447 xmlAddChild((xmlNodePtr) doc, (xmlNodePtr) dtd); | |
| 448 | |
| 449 } else { | |
| 450 xmlAddPrevSibling(doc->children, (xmlNodePtr) dtd); | |
| 451 } | |
| 452 | |
| 453 #endif | |
| 454 | |
| 455 doc->extSubset = dtd; | |
| 456 } | |
| 457 | |
| 458 | |
| 459 static void ngx_cdecl | |
| 460 ngx_http_xslt_sax_error(void *data, const char *msg, ...) | |
| 461 { | |
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462 xmlParserCtxtPtr ctxt = data; |
| 2139 | 463 |
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464 size_t n; |
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465 va_list args; |
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466 ngx_http_xslt_filter_ctx_t *ctx; |
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467 u_char buf[NGX_MAX_ERROR_STR]; |
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468 |
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469 ctx = ctxt->sax->_private; |
| 2139 | 470 |
| 471 buf[0] = '\0'; | |
| 472 | |
| 473 va_start(args, msg); | |
| 474 n = (size_t) vsnprintf((char *) buf, NGX_MAX_ERROR_STR, msg, args); | |
| 475 va_end(args); | |
| 476 | |
| 477 while (--n && (buf[n] == CR || buf[n] == LF)) { /* void */ } | |
| 478 | |
| 479 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
| 2999 | 480 "libxml2 error: \"%*s\"", n + 1, buf); |
| 2139 | 481 } |
| 482 | |
| 483 | |
| 484 static ngx_buf_t * | |
| 485 ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
| 486 ngx_http_xslt_filter_ctx_t *ctx) | |
| 487 { | |
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488 int len, rc, doc_type; |
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489 u_char *type, *encoding; |
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490 ngx_buf_t *b; |
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491 ngx_uint_t i; |
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492 xmlChar *buf; |
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493 xmlDocPtr doc, res; |
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494 ngx_http_xslt_sheet_t *sheet; |
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495 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 496 |
| 497 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 498 sheet = conf->sheets.elts; | |
| 499 doc = ctx->doc; | |
| 500 | |
| 501 /* preallocate array for 4 params */ | |
| 502 | |
| 503 if (ngx_array_init(&ctx->params, r->pool, 4 * 2 + 1, sizeof(char *)) | |
| 504 != NGX_OK) | |
| 505 { | |
| 506 xmlFreeDoc(doc); | |
| 507 return NULL; | |
| 508 } | |
| 509 | |
| 510 for (i = 0; i < conf->sheets.nelts; i++) { | |
| 511 | |
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512 ctx->transform = xsltNewTransformContext(sheet[i].stylesheet, doc); |
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|
513 if (ctx->transform == NULL) { |
| 2139 | 514 xmlFreeDoc(doc); |
| 515 return NULL; | |
| 516 } | |
| 517 | |
|
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518 if (conf->params |
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519 && ngx_http_xslt_params(r, ctx, conf->params, 0) != NGX_OK) |
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520 { |
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521 xsltFreeTransformContext(ctx->transform); |
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522 xmlFreeDoc(doc); |
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523 return NULL; |
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524 } |
| 2139 | 525 |
|
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526 if (ngx_http_xslt_params(r, ctx, &sheet[i].params, 1) != NGX_OK) { |
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527 xsltFreeTransformContext(ctx->transform); |
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528 xmlFreeDoc(doc); |
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529 return NULL; |
|
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530 } |
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531 |
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532 res = xsltApplyStylesheetUser(sheet[i].stylesheet, doc, |
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Added xslt_param and xslt_string_param directives.
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533 ctx->params.elts, NULL, NULL, |
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Added xslt_param and xslt_string_param directives.
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534 ctx->transform); |
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535 |
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Added xslt_param and xslt_string_param directives.
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536 xsltFreeTransformContext(ctx->transform); |
| 2139 | 537 xmlFreeDoc(doc); |
| 538 | |
| 539 if (res == NULL) { | |
| 540 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 541 "xsltApplyStylesheet() failed"); | |
| 542 return NULL; | |
| 543 } | |
| 544 | |
| 545 doc = res; | |
| 546 | |
| 547 /* reset array elements */ | |
| 548 ctx->params.nelts = 0; | |
| 549 } | |
| 550 | |
|
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551 /* there must be at least one stylesheet */ |
| 2139 | 552 |
|
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553 if (r == r->main) { |
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554 type = ngx_http_xslt_content_type(sheet[i - 1].stylesheet); |
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555 |
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556 } else { |
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557 type = NULL; |
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558 } |
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559 |
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560 encoding = ngx_http_xslt_encoding(sheet[i - 1].stylesheet); |
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561 doc_type = doc->type; |
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562 |
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563 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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564 "xslt filter type: %d t:%s e:%s", |
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565 doc_type, type ? type : (u_char *) "(null)", |
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566 encoding ? encoding : (u_char *) "(null)"); |
| 2139 | 567 |
| 568 rc = xsltSaveResultToString(&buf, &len, doc, sheet[i - 1].stylesheet); | |
| 569 | |
| 570 xmlFreeDoc(doc); | |
| 571 | |
| 572 if (rc != 0) { | |
| 573 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 574 "xsltSaveResultToString() failed"); | |
| 575 return NULL; | |
| 576 } | |
| 577 | |
| 578 if (len == 0) { | |
| 579 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 580 "xsltSaveResultToString() returned zero-length result"); | |
| 581 return NULL; | |
| 582 } | |
| 583 | |
| 584 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 585 if (b == NULL) { | |
| 586 ngx_free(buf); | |
| 587 return NULL; | |
| 588 } | |
| 589 | |
| 590 b->pos = buf; | |
| 591 b->last = buf + len; | |
| 592 b->memory = 1; | |
| 593 | |
|
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594 if (encoding) { |
|
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595 r->headers_out.charset.len = ngx_strlen(encoding); |
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596 r->headers_out.charset.data = encoding; |
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597 } |
|
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598 |
|
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599 if (r != r->main) { |
|
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600 return b; |
|
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601 } |
|
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|
602 |
|
2899
61d5b945730a
fix XSLT filter in SSI subrequests
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|
603 b->last_buf = 1; |
|
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|
604 |
|
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605 if (type) { |
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606 len = ngx_strlen(type); |
|
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|
607 |
|
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|
608 r->headers_out.content_type_len = len; |
|
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|
609 r->headers_out.content_type.len = len; |
|
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|
610 r->headers_out.content_type.data = type; |
|
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|
611 |
|
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|
612 } else if (doc_type == XML_HTML_DOCUMENT_NODE) { |
|
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|
613 |
|
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diff
changeset
|
614 r->headers_out.content_type_len = sizeof("text/html") - 1; |
|
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
Igor Sysoev <igor@sysoev.ru>
parents:
3508
diff
changeset
|
615 ngx_str_set(&r->headers_out.content_type, "text/html"); |
|
2153
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|
616 } |
|
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|
617 |
|
2882
896db5a09bd2
reset content_type hash value, this fixes a bug when XSLT responses
Igor Sysoev <igor@sysoev.ru>
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2821
diff
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|
618 r->headers_out.content_type_lowcase = NULL; |
|
896db5a09bd2
reset content_type hash value, this fixes a bug when XSLT responses
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diff
changeset
|
619 |
| 2139 | 620 return b; |
| 621 } | |
| 622 | |
| 623 | |
| 624 static ngx_int_t | |
| 625 ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
|
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Added xslt_param and xslt_string_param directives.
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|
626 ngx_array_t *params, ngx_uint_t final) |
| 2139 | 627 { |
|
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
628 u_char *p, *last, *value, *dst, *src, **s; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
629 size_t len; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
630 ngx_uint_t i; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
631 ngx_str_t string; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
632 ngx_http_xslt_param_t *param; |
| 2139 | 633 |
| 634 param = params->elts; | |
| 635 | |
| 636 for (i = 0; i < params->nelts; i++) { | |
| 637 | |
|
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
638 if (ngx_http_complex_value(r, ¶m[i].value, &string) != NGX_OK) { |
| 2139 | 639 return NGX_ERROR; |
| 640 } | |
| 641 | |
| 642 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 643 "xslt filter param: \"%s\"", string.data); | |
| 644 | |
|
4554
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Added xslt_param and xslt_string_param directives.
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changeset
|
645 if (param[i].name) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
646 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
647 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
648 "xslt filter param name: \"%s\"", param[i].name); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
649 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
650 if (param[i].quote) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
651 if (xsltQuoteOneUserParam(ctx->transform, param[i].name, |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
652 string.data) |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
653 != 0) |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
654 { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
655 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
656 "xsltQuoteOneUserParam(\"%s\", \"%s\") failed", |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
657 param[i].name, string.data); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
658 return NGX_ERROR; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
659 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
660 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
661 continue; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
662 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
663 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
664 s = ngx_array_push(&ctx->params); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
665 if (s == NULL) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
666 return NGX_ERROR; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
667 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
668 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
669 *s = param[i].name; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
670 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
671 s = ngx_array_push(&ctx->params); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
672 if (s == NULL) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
673 return NGX_ERROR; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
674 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
675 |
|
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Added xslt_param and xslt_string_param directives.
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|
676 *s = string.data; |
|
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Added xslt_param and xslt_string_param directives.
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|
677 |
|
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Added xslt_param and xslt_string_param directives.
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|
678 continue; |
|
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Added xslt_param and xslt_string_param directives.
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|
679 } |
|
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|
680 |
|
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Added xslt_param and xslt_string_param directives.
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|
681 /* |
|
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|
682 * parse param1=value1:param2=value2 syntax as used by parameters |
|
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Added xslt_param and xslt_string_param directives.
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|
683 * specified in xslt_stylesheet directives |
|
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|
684 */ |
|
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Added xslt_param and xslt_string_param directives.
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|
685 |
| 2139 | 686 p = string.data; |
|
4553
3dd8a403faa1
Fixed off-by-one in xslt parameter parsing.
Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
687 last = string.data + string.len; |
| 2139 | 688 |
| 689 while (p && *p) { | |
| 690 | |
| 691 value = p; | |
| 692 p = (u_char *) ngx_strchr(p, '='); | |
| 693 if (p == NULL) { | |
| 694 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 695 "invalid libxslt parameter \"%s\"", value); | |
| 696 return NGX_ERROR; | |
| 697 } | |
| 698 *p++ = '\0'; | |
| 699 | |
| 700 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 701 "xslt filter param name: \"%s\"", value); | |
| 702 | |
| 703 s = ngx_array_push(&ctx->params); | |
| 704 if (s == NULL) { | |
| 705 return NGX_ERROR; | |
| 706 } | |
| 707 | |
| 708 *s = value; | |
| 709 | |
| 710 value = p; | |
| 711 p = (u_char *) ngx_strchr(p, ':'); | |
| 712 | |
| 713 if (p) { | |
| 714 len = p - value; | |
| 715 *p++ = '\0'; | |
| 716 | |
| 717 } else { | |
| 718 len = last - value; | |
| 719 } | |
| 720 | |
| 721 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 722 "xslt filter param value: \"%s\"", value); | |
| 723 | |
| 724 dst = value; | |
| 725 src = value; | |
| 726 | |
| 727 ngx_unescape_uri(&dst, &src, len, 0); | |
| 728 | |
| 729 *dst = '\0'; | |
| 730 | |
| 731 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 732 "xslt filter param unescaped: \"%s\"", value); | |
| 733 | |
| 734 s = ngx_array_push(&ctx->params); | |
| 735 if (s == NULL) { | |
| 736 return NGX_ERROR; | |
| 737 } | |
| 738 | |
| 739 *s = value; | |
| 740 } | |
| 741 } | |
| 742 | |
|
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|
743 if (final) { |
|
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changeset
|
744 s = ngx_array_push(&ctx->params); |
|
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changeset
|
745 if (s == NULL) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
746 return NGX_ERROR; |
|
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Added xslt_param and xslt_string_param directives.
Maxim Dounin <mdounin@mdounin.ru>
parents:
4553
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changeset
|
747 } |
|
212a0251951b
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Maxim Dounin <mdounin@mdounin.ru>
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diff
changeset
|
748 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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parents:
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|
749 *s = NULL; |
| 2139 | 750 } |
| 751 | |
| 752 return NGX_OK; | |
| 753 } | |
| 754 | |
| 755 | |
|
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756 static u_char * |
|
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|
757 ngx_http_xslt_content_type(xsltStylesheetPtr s) |
|
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758 { |
|
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|
759 u_char *type; |
|
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|
760 |
|
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|
761 if (s->mediaType) { |
|
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762 return s->mediaType; |
|
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|
763 } |
|
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|
764 |
|
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|
765 for (s = s->imports; s; s = s->next) { |
|
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|
766 |
|
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|
767 type = ngx_http_xslt_content_type(s); |
|
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|
768 |
|
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|
769 if (type) { |
|
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|
770 return type; |
|
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|
771 } |
|
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changeset
|
772 } |
|
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|
773 |
|
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|
774 return NULL; |
|
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changeset
|
775 } |
|
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changeset
|
776 |
|
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|
777 |
|
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|
778 static u_char * |
|
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|
779 ngx_http_xslt_encoding(xsltStylesheetPtr s) |
|
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|
780 { |
|
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changeset
|
781 u_char *encoding; |
|
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|
782 |
|
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changeset
|
783 if (s->encoding) { |
|
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|
784 return s->encoding; |
|
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2152
diff
changeset
|
785 } |
|
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changeset
|
786 |
|
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|
787 for (s = s->imports; s; s = s->next) { |
|
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|
788 |
|
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parents:
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|
789 encoding = ngx_http_xslt_encoding(s); |
|
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diff
changeset
|
790 |
|
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changeset
|
791 if (encoding) { |
|
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|
792 return encoding; |
|
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|
793 } |
|
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changeset
|
794 } |
|
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diff
changeset
|
795 |
|
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|
796 return NULL; |
|
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|
797 } |
|
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changeset
|
798 |
|
6476e445d6ce
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changeset
|
799 |
| 2139 | 800 static void |
| 801 ngx_http_xslt_cleanup(void *data) | |
| 802 { | |
| 803 ngx_free(data); | |
| 804 } | |
| 805 | |
| 806 | |
| 807 static char * | |
| 808 ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 809 { | |
|
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changeset
|
810 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 811 |
|
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changeset
|
812 ngx_str_t *value; |
|
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changeset
|
813 ngx_uint_t i; |
|
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reuse compiled DTD hash in different locations, add DTD cleanup
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changeset
|
814 ngx_pool_cleanup_t *cln; |
|
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changeset
|
815 ngx_http_xslt_file_t *file; |
|
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changeset
|
816 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 817 |
| 818 if (xlcf->dtd) { | |
| 819 return "is duplicate"; | |
| 820 } | |
| 821 | |
| 822 value = cf->args->elts; | |
| 823 | |
|
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|
824 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
|
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|
825 |
|
0c6d0bd60579
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changeset
|
826 file = xmcf->dtd_files.elts; |
|
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diff
changeset
|
827 for (i = 0; i < xmcf->dtd_files.nelts; i++) { |
|
4646
959371df1806
Fixed the reuse of parsed DTDs and XSLTs.
Ruslan Ermilov <ru@nginx.com>
parents:
4560
diff
changeset
|
828 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
|
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|
829 xlcf->dtd = file[i].data; |
|
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|
830 return NGX_CONF_OK; |
|
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|
831 } |
|
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|
832 } |
|
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changeset
|
833 |
|
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|
834 cln = ngx_pool_cleanup_add(cf->pool, 0); |
|
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|
835 if (cln == NULL) { |
|
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|
836 return NGX_CONF_ERROR; |
|
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|
837 } |
|
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|
838 |
| 2139 | 839 xlcf->dtd = xmlParseDTD(NULL, (xmlChar *) value[1].data); |
| 840 | |
| 841 if (xlcf->dtd == NULL) { | |
| 842 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, "xmlParseDTD() failed"); | |
| 843 return NGX_CONF_ERROR; | |
| 844 } | |
| 845 | |
|
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|
846 cln->handler = ngx_http_xslt_cleanup_dtd; |
|
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|
847 cln->data = xlcf->dtd; |
|
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|
848 |
|
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|
849 file = ngx_array_push(&xmcf->dtd_files); |
|
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|
850 if (file == NULL) { |
|
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|
851 return NGX_CONF_ERROR; |
|
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|
852 } |
|
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|
853 |
|
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|
854 file->name = value[1].data; |
|
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|
855 file->data = xlcf->dtd; |
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|
856 |
| 2139 | 857 return NGX_CONF_OK; |
| 858 } | |
| 859 | |
| 860 | |
| 861 | |
| 862 static char * | |
| 863 ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 864 { | |
|
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|
865 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 866 |
|
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867 ngx_str_t *value; |
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868 ngx_uint_t i, n; |
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869 ngx_pool_cleanup_t *cln; |
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870 ngx_http_xslt_file_t *file; |
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871 ngx_http_xslt_sheet_t *sheet; |
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872 ngx_http_xslt_param_t *param; |
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873 ngx_http_compile_complex_value_t ccv; |
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874 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 875 |
| 876 value = cf->args->elts; | |
| 877 | |
| 878 if (xlcf->sheets.elts == NULL) { | |
| 879 if (ngx_array_init(&xlcf->sheets, cf->pool, 1, | |
| 880 sizeof(ngx_http_xslt_sheet_t)) | |
| 881 != NGX_OK) | |
| 882 { | |
| 883 return NGX_CONF_ERROR; | |
| 884 } | |
| 885 } | |
| 886 | |
| 887 sheet = ngx_array_push(&xlcf->sheets); | |
| 888 if (sheet == NULL) { | |
| 889 return NGX_CONF_ERROR; | |
| 890 } | |
| 891 | |
| 892 ngx_memzero(sheet, sizeof(ngx_http_xslt_sheet_t)); | |
| 893 | |
| 894 if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) { | |
| 895 return NGX_CONF_ERROR; | |
| 896 } | |
| 897 | |
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898 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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899 |
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900 file = xmcf->sheet_files.elts; |
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901 for (i = 0; i < xmcf->sheet_files.nelts; i++) { |
|
4646
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902 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
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903 sheet->stylesheet = file[i].data; |
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904 goto found; |
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905 } |
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906 } |
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907 |
| 2139 | 908 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 909 if (cln == NULL) { | |
| 910 return NGX_CONF_ERROR; | |
| 911 } | |
| 912 | |
| 913 sheet->stylesheet = xsltParseStylesheetFile(value[1].data); | |
| 914 if (sheet->stylesheet == NULL) { | |
| 915 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
| 916 "xsltParseStylesheetFile(\"%s\") failed", | |
| 917 value[1].data); | |
| 918 return NGX_CONF_ERROR; | |
| 919 } | |
| 920 | |
| 921 cln->handler = ngx_http_xslt_cleanup_stylesheet; | |
| 922 cln->data = sheet->stylesheet; | |
| 923 | |
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924 file = ngx_array_push(&xmcf->sheet_files); |
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925 if (file == NULL) { |
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926 return NGX_CONF_ERROR; |
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927 } |
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928 |
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929 file->name = value[1].data; |
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930 file->data = sheet->stylesheet; |
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931 |
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932 found: |
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933 |
| 2139 | 934 n = cf->args->nelts; |
| 935 | |
| 936 if (n == 2) { | |
| 937 return NGX_CONF_OK; | |
| 938 } | |
| 939 | |
| 940 if (ngx_array_init(&sheet->params, cf->pool, n - 2, | |
|
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941 sizeof(ngx_http_xslt_param_t)) |
| 2139 | 942 != NGX_OK) |
| 943 { | |
| 944 return NGX_CONF_ERROR; | |
| 945 } | |
| 946 | |
| 947 for (i = 2; i < n; i++) { | |
| 948 | |
| 949 param = ngx_array_push(&sheet->params); | |
| 950 if (param == NULL) { | |
| 951 return NGX_CONF_ERROR; | |
| 952 } | |
| 953 | |
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954 ngx_memzero(param, sizeof(ngx_http_xslt_param_t)); |
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955 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| 2139 | 956 |
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957 ccv.cf = cf; |
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958 ccv.value = &value[i]; |
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959 ccv.complex_value = ¶m->value; |
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960 ccv.zero = 1; |
| 2139 | 961 |
|
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962 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| 2139 | 963 return NGX_CONF_ERROR; |
| 964 } | |
| 965 } | |
| 966 | |
| 967 return NGX_CONF_OK; | |
| 968 } | |
| 969 | |
| 970 | |
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971 static char * |
|
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972 ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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973 { |
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974 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
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975 |
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976 ngx_http_xslt_param_t *param; |
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977 ngx_http_compile_complex_value_t ccv; |
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978 ngx_str_t *value; |
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979 |
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980 value = cf->args->elts; |
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981 |
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982 if (xlcf->params == NULL) { |
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983 xlcf->params = ngx_array_create(cf->pool, 2, |
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984 sizeof(ngx_http_xslt_param_t)); |
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985 if (xlcf->params == NULL) { |
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986 return NGX_CONF_ERROR; |
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987 } |
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988 } |
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|
989 |
|
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990 param = ngx_array_push(xlcf->params); |
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991 if (param == NULL) { |
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992 return NGX_CONF_ERROR; |
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993 } |
|
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|
994 |
|
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995 param->name = value[1].data; |
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996 param->quote = (cmd->post == NULL) ? 0 : 1; |
|
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|
997 |
|
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998 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
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999 |
|
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1000 ccv.cf = cf; |
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1001 ccv.value = &value[2]; |
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1002 ccv.complex_value = ¶m->value; |
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1003 ccv.zero = 1; |
|
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1004 |
|
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1005 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
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1006 return NGX_CONF_ERROR; |
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1007 } |
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|
1008 |
|
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1009 return NGX_CONF_OK; |
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1010 } |
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|
1011 |
|
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1012 |
| 2139 | 1013 static void |
|
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1014 ngx_http_xslt_cleanup_dtd(void *data) |
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1015 { |
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1016 xmlFreeDtd(data); |
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1017 } |
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1018 |
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1019 |
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1020 static void |
| 2139 | 1021 ngx_http_xslt_cleanup_stylesheet(void *data) |
| 1022 { | |
|
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1023 xsltFreeStylesheet(data); |
| 2139 | 1024 } |
| 1025 | |
| 1026 | |
|
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1027 static void * |
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1028 ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf) |
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1029 { |
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1030 ngx_http_xslt_filter_main_conf_t *conf; |
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1031 |
|
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1032 conf = ngx_palloc(cf->pool, sizeof(ngx_http_xslt_filter_main_conf_t)); |
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1033 if (conf == NULL) { |
|
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1034 return NULL; |
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1035 } |
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1036 |
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1037 if (ngx_array_init(&conf->dtd_files, cf->pool, 1, |
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1038 sizeof(ngx_http_xslt_file_t)) |
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1039 != NGX_OK) |
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1040 { |
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1041 return NULL; |
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1042 } |
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1043 |
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1044 if (ngx_array_init(&conf->sheet_files, cf->pool, 1, |
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1045 sizeof(ngx_http_xslt_file_t)) |
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1046 != NGX_OK) |
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1047 { |
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1048 return NULL; |
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1049 } |
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1050 |
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1051 return conf; |
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1052 } |
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1053 |
| 2139 | 1054 |
| 1055 static void * | |
| 1056 ngx_http_xslt_filter_create_conf(ngx_conf_t *cf) | |
| 1057 { | |
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1058 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 1059 |
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1060 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_xslt_filter_loc_conf_t)); |
| 2139 | 1061 if (conf == NULL) { |
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1062 return NULL; |
| 2139 | 1063 } |
| 1064 | |
| 1065 /* | |
| 1066 * set by ngx_pcalloc(): | |
| 1067 * | |
| 2148 | 1068 * conf->dtd = NULL; |
| 1069 * conf->sheets = { NULL }; | |
| 1070 * conf->types = { NULL }; | |
| 1071 * conf->types_keys = NULL; | |
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1072 * conf->params = NULL; |
| 2139 | 1073 */ |
| 1074 | |
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1075 conf->last_modified = NGX_CONF_UNSET; |
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1076 |
| 2139 | 1077 return conf; |
| 1078 } | |
| 1079 | |
| 1080 | |
| 1081 static char * | |
| 1082 ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1083 { | |
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1084 ngx_http_xslt_filter_loc_conf_t *prev = parent; |
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1085 ngx_http_xslt_filter_loc_conf_t *conf = child; |
| 2139 | 1086 |
| 1087 if (conf->dtd == NULL) { | |
| 1088 conf->dtd = prev->dtd; | |
| 1089 } | |
| 1090 | |
| 1091 if (conf->sheets.nelts == 0) { | |
| 1092 conf->sheets = prev->sheets; | |
| 1093 } | |
| 1094 | |
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1095 if (conf->params == NULL) { |
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1096 conf->params = prev->params; |
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1097 } |
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1098 |
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1099 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types, |
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1100 &prev->types_keys, &prev->types, |
| 2148 | 1101 ngx_http_xslt_default_types) |
| 2139 | 1102 != NGX_OK) |
| 1103 { | |
| 1104 return NGX_CONF_ERROR; | |
| 1105 } | |
| 1106 | |
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1107 ngx_conf_merge_value(conf->last_modified, prev->last_modified, 0); |
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1108 |
| 2139 | 1109 return NGX_CONF_OK; |
| 1110 } | |
| 1111 | |
| 1112 | |
| 1113 static ngx_int_t | |
| 1114 ngx_http_xslt_filter_init(ngx_conf_t *cf) | |
| 1115 { | |
| 1116 xmlInitParser(); | |
| 1117 | |
| 2299 | 1118 #if (NGX_HAVE_EXSLT) |
| 1119 exsltRegisterAll(); | |
| 1120 #endif | |
| 1121 | |
| 2139 | 1122 ngx_http_next_header_filter = ngx_http_top_header_filter; |
| 1123 ngx_http_top_header_filter = ngx_http_xslt_header_filter; | |
| 1124 | |
| 1125 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
| 1126 ngx_http_top_body_filter = ngx_http_xslt_body_filter; | |
| 1127 | |
| 1128 return NGX_OK; | |
| 1129 } | |
| 1130 | |
| 1131 | |
| 1132 static void | |
| 1133 ngx_http_xslt_filter_exit(ngx_cycle_t *cycle) | |
| 1134 { | |
| 1135 xsltCleanupGlobals(); | |
| 1136 xmlCleanupParser(); | |
| 1137 } |