Mercurial > hg > nginx
annotate src/http/modules/ngx_http_xslt_filter_module.c @ 5317:f1a91825730a
Replaced ngx_conf_full_name() with ngx_get_full_name().
The ngx_get_full_name() function takes more readable arguments list.
| author | Valentin Bartenev <vbart@nginx.com> |
|---|---|
| date | Tue, 06 Aug 2013 19:58:40 +0400 |
| parents | e939f6e8548c |
| children | 314c3d7cc3a5 |
| 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); | |
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107 static ngx_int_t ngx_http_xslt_filter_preconfiguration(ngx_conf_t *cf); |
| 2139 | 108 static ngx_int_t ngx_http_xslt_filter_init(ngx_conf_t *cf); |
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109 static void ngx_http_xslt_filter_exit(ngx_cycle_t *cycle); |
| 2139 | 110 |
| 111 | |
| 112 ngx_str_t ngx_http_xslt_default_types[] = { | |
| 113 ngx_string("text/xml"), | |
| 114 ngx_null_string | |
| 115 }; | |
| 116 | |
| 117 | |
| 118 static ngx_command_t ngx_http_xslt_filter_commands[] = { | |
| 119 | |
| 120 { ngx_string("xml_entities"), | |
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121 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| 2139 | 122 ngx_http_xslt_entities, |
| 123 NGX_HTTP_LOC_CONF_OFFSET, | |
| 124 0, | |
| 125 NULL }, | |
| 126 | |
| 127 { ngx_string("xslt_stylesheet"), | |
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128 NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
| 2139 | 129 ngx_http_xslt_stylesheet, |
| 130 NGX_HTTP_LOC_CONF_OFFSET, | |
| 131 0, | |
| 132 NULL }, | |
| 133 | |
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134 { ngx_string("xslt_param"), |
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135 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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136 ngx_http_xslt_param, |
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137 NGX_HTTP_LOC_CONF_OFFSET, |
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138 0, |
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139 NULL }, |
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140 |
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141 { ngx_string("xslt_string_param"), |
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142 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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143 ngx_http_xslt_param, |
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144 NGX_HTTP_LOC_CONF_OFFSET, |
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145 0, |
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146 (void *) 1 }, |
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147 |
| 2139 | 148 { ngx_string("xslt_types"), |
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149 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
| 2139 | 150 ngx_http_types_slot, |
| 151 NGX_HTTP_LOC_CONF_OFFSET, | |
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152 offsetof(ngx_http_xslt_filter_loc_conf_t, types_keys), |
| 2139 | 153 &ngx_http_xslt_default_types[0] }, |
| 154 | |
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155 { ngx_string("xslt_last_modified"), |
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156 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_FLAG, |
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157 ngx_conf_set_flag_slot, |
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158 NGX_HTTP_LOC_CONF_OFFSET, |
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159 offsetof(ngx_http_xslt_filter_loc_conf_t, last_modified), |
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160 NULL }, |
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161 |
| 2139 | 162 ngx_null_command |
| 163 }; | |
| 164 | |
| 165 | |
| 166 static ngx_http_module_t ngx_http_xslt_filter_module_ctx = { | |
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167 ngx_http_xslt_filter_preconfiguration, /* preconfiguration */ |
| 2139 | 168 ngx_http_xslt_filter_init, /* postconfiguration */ |
| 169 | |
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170 ngx_http_xslt_filter_create_main_conf, /* create main configuration */ |
| 2139 | 171 NULL, /* init main configuration */ |
| 172 | |
| 173 NULL, /* create server configuration */ | |
| 174 NULL, /* merge server configuration */ | |
| 175 | |
| 176 ngx_http_xslt_filter_create_conf, /* create location configuration */ | |
| 177 ngx_http_xslt_filter_merge_conf /* merge location configuration */ | |
| 178 }; | |
| 179 | |
| 180 | |
| 181 ngx_module_t ngx_http_xslt_filter_module = { | |
| 182 NGX_MODULE_V1, | |
| 183 &ngx_http_xslt_filter_module_ctx, /* module context */ | |
| 184 ngx_http_xslt_filter_commands, /* module directives */ | |
| 185 NGX_HTTP_MODULE, /* module type */ | |
| 186 NULL, /* init master */ | |
| 187 NULL, /* init module */ | |
| 188 NULL, /* init process */ | |
| 189 NULL, /* init thread */ | |
| 190 NULL, /* exit thread */ | |
| 2983 | 191 ngx_http_xslt_filter_exit, /* exit process */ |
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192 ngx_http_xslt_filter_exit, /* exit master */ |
| 2139 | 193 NGX_MODULE_V1_PADDING |
| 194 }; | |
| 195 | |
| 196 | |
| 197 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; | |
| 198 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; | |
| 199 | |
| 200 | |
| 201 static ngx_int_t | |
| 202 ngx_http_xslt_header_filter(ngx_http_request_t *r) | |
| 203 { | |
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204 ngx_http_xslt_filter_ctx_t *ctx; |
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205 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 206 |
| 207 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 208 "xslt filter header"); | |
| 209 | |
| 210 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) { | |
| 211 return ngx_http_next_header_filter(r); | |
| 212 } | |
| 213 | |
| 214 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 215 | |
| 216 if (conf->sheets.nelts == 0 | |
| 2148 | 217 || ngx_http_test_content_type(r, &conf->types) == NULL) |
| 2139 | 218 { |
| 219 return ngx_http_next_header_filter(r); | |
| 220 } | |
| 221 | |
| 222 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
| 223 | |
| 224 if (ctx) { | |
| 225 return ngx_http_next_header_filter(r); | |
| 226 } | |
| 227 | |
| 228 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_xslt_filter_ctx_t)); | |
| 229 if (ctx == NULL) { | |
| 230 return NGX_ERROR; | |
| 231 } | |
| 232 | |
| 233 ngx_http_set_ctx(r, ctx, ngx_http_xslt_filter_module); | |
| 234 | |
| 235 r->main_filter_need_in_memory = 1; | |
| 236 | |
| 237 return NGX_OK; | |
| 238 } | |
| 239 | |
| 240 | |
| 241 static ngx_int_t | |
| 242 ngx_http_xslt_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
| 243 { | |
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244 int wellFormed; |
| 2139 | 245 ngx_chain_t *cl; |
| 246 ngx_http_xslt_filter_ctx_t *ctx; | |
| 247 | |
| 248 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 249 "xslt filter body"); | |
| 250 | |
| 251 if (in == NULL) { | |
| 252 return ngx_http_next_body_filter(r, in); | |
| 253 } | |
| 254 | |
| 255 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
| 256 | |
| 257 if (ctx == NULL || ctx->done) { | |
| 258 return ngx_http_next_body_filter(r, in); | |
| 259 } | |
| 260 | |
| 261 for (cl = in; cl; cl = cl->next) { | |
| 262 | |
| 263 if (ngx_http_xslt_add_chunk(r, ctx, cl->buf) != NGX_OK) { | |
| 264 | |
| 3642 | 265 if (ctx->ctxt->myDoc) { |
| 2139 | 266 |
| 267 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 268 ctx->ctxt->myDoc->extSubset = NULL; | |
| 269 #endif | |
| 270 xmlFreeDoc(ctx->ctxt->myDoc); | |
| 271 } | |
| 272 | |
| 273 xmlFreeParserCtxt(ctx->ctxt); | |
| 274 | |
| 275 return ngx_http_xslt_send(r, ctx, NULL); | |
| 276 } | |
| 277 | |
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278 if (cl->buf->last_buf || cl->buf->last_in_chain) { |
| 2139 | 279 |
| 280 ctx->doc = ctx->ctxt->myDoc; | |
| 281 | |
| 282 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 283 ctx->doc->extSubset = NULL; | |
| 284 #endif | |
| 285 | |
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286 wellFormed = ctx->ctxt->wellFormed; |
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287 |
| 2139 | 288 xmlFreeParserCtxt(ctx->ctxt); |
| 289 | |
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290 if (wellFormed) { |
| 2139 | 291 return ngx_http_xslt_send(r, ctx, |
| 292 ngx_http_xslt_apply_stylesheet(r, ctx)); | |
| 293 } | |
| 294 | |
| 295 xmlFreeDoc(ctx->doc); | |
| 296 | |
| 297 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 298 "not well formed XML document"); | |
| 299 | |
| 300 return ngx_http_xslt_send(r, ctx, NULL); | |
| 301 } | |
| 302 } | |
| 303 | |
| 304 return NGX_OK; | |
| 305 } | |
| 306 | |
| 307 | |
| 308 static ngx_int_t | |
| 309 ngx_http_xslt_send(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
| 310 ngx_buf_t *b) | |
| 311 { | |
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312 ngx_int_t rc; |
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313 ngx_chain_t out; |
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314 ngx_pool_cleanup_t *cln; |
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315 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 316 |
| 317 ctx->done = 1; | |
| 318 | |
| 319 if (b == NULL) { | |
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320 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
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321 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 2139 | 322 } |
| 323 | |
| 324 cln = ngx_pool_cleanup_add(r->pool, 0); | |
| 325 | |
| 326 if (cln == NULL) { | |
| 327 ngx_free(b->pos); | |
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328 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
| 2139 | 329 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 330 } | |
| 331 | |
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332 if (r == r->main) { |
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333 r->headers_out.content_length_n = b->last - b->pos; |
| 2139 | 334 |
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335 if (r->headers_out.content_length) { |
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336 r->headers_out.content_length->hash = 0; |
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337 r->headers_out.content_length = NULL; |
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338 } |
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339 |
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340 ngx_http_clear_etag(r); |
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341 |
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342 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); |
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343 |
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344 if (!conf->last_modified) { |
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345 ngx_http_clear_last_modified(r); |
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346 } |
| 2139 | 347 } |
| 348 | |
| 349 rc = ngx_http_next_header_filter(r); | |
| 350 | |
| 351 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 352 ngx_free(b->pos); | |
| 353 return rc; | |
| 354 } | |
| 355 | |
| 356 cln->handler = ngx_http_xslt_cleanup; | |
| 357 cln->data = b->pos; | |
| 358 | |
| 359 out.buf = b; | |
| 360 out.next = NULL; | |
| 361 | |
| 362 return ngx_http_next_body_filter(r, &out); | |
| 363 } | |
| 364 | |
| 365 | |
| 366 static ngx_int_t | |
| 367 ngx_http_xslt_add_chunk(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
| 368 ngx_buf_t *b) | |
| 369 { | |
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370 int err; |
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371 xmlParserCtxtPtr ctxt; |
| 2139 | 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 } | |
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381 xmlCtxtUseOptions(ctxt, XML_PARSE_NOENT|XML_PARSE_DTDLOAD |
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382 |XML_PARSE_NOWARNING); |
| 2139 | 383 |
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384 ctxt->sax->externalSubset = ngx_http_xslt_sax_external_subset; |
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385 ctxt->sax->setDocumentLocator = NULL; |
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386 ctxt->sax->error = ngx_http_xslt_sax_error; |
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387 ctxt->sax->fatalError = ngx_http_xslt_sax_error; |
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388 ctxt->sax->_private = ctx; |
| 2139 | 389 |
| 390 ctx->ctxt = ctxt; | |
| 391 ctx->request = r; | |
| 392 } | |
| 393 | |
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394 err = xmlParseChunk(ctx->ctxt, (char *) b->pos, (int) (b->last - b->pos), |
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395 (b->last_buf) || (b->last_in_chain)); |
| 2139 | 396 |
| 397 if (err == 0) { | |
| 398 b->pos = b->last; | |
| 399 return NGX_OK; | |
| 400 } | |
| 401 | |
| 402 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 403 "xmlParseChunk() failed, error:%d", err); | |
| 404 | |
| 405 return NGX_ERROR; | |
| 406 } | |
| 407 | |
| 408 | |
| 409 static void | |
| 410 ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
| 411 const xmlChar *externalId, const xmlChar *systemId) | |
| 412 { | |
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413 xmlParserCtxtPtr ctxt = data; |
| 2139 | 414 |
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415 xmlDocPtr doc; |
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416 xmlDtdPtr dtd; |
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417 ngx_http_request_t *r; |
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418 ngx_http_xslt_filter_ctx_t *ctx; |
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419 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 420 |
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421 ctx = ctxt->sax->_private; |
| 2139 | 422 r = ctx->request; |
| 423 | |
| 424 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 425 | |
| 426 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 427 "xslt filter extSubset: \"%s\" \"%s\" \"%s\"", | |
| 428 name ? name : (xmlChar *) "", | |
| 429 externalId ? externalId : (xmlChar *) "", | |
| 430 systemId ? systemId : (xmlChar *) ""); | |
| 431 | |
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432 doc = ctxt->myDoc; |
| 2139 | 433 |
| 434 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 435 | |
| 436 dtd = conf->dtd; | |
| 437 | |
| 438 #else | |
| 439 | |
| 440 dtd = xmlCopyDtd(conf->dtd); | |
| 441 if (dtd == NULL) { | |
| 442 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 443 "xmlCopyDtd() failed"); | |
| 444 return; | |
| 445 } | |
| 446 | |
| 447 if (doc->children == NULL) { | |
| 448 xmlAddChild((xmlNodePtr) doc, (xmlNodePtr) dtd); | |
| 449 | |
| 450 } else { | |
| 451 xmlAddPrevSibling(doc->children, (xmlNodePtr) dtd); | |
| 452 } | |
| 453 | |
| 454 #endif | |
| 455 | |
| 456 doc->extSubset = dtd; | |
| 457 } | |
| 458 | |
| 459 | |
| 460 static void ngx_cdecl | |
| 461 ngx_http_xslt_sax_error(void *data, const char *msg, ...) | |
| 462 { | |
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463 xmlParserCtxtPtr ctxt = data; |
| 2139 | 464 |
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465 size_t n; |
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466 va_list args; |
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467 ngx_http_xslt_filter_ctx_t *ctx; |
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468 u_char buf[NGX_MAX_ERROR_STR]; |
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469 |
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470 ctx = ctxt->sax->_private; |
| 2139 | 471 |
| 472 buf[0] = '\0'; | |
| 473 | |
| 474 va_start(args, msg); | |
| 475 n = (size_t) vsnprintf((char *) buf, NGX_MAX_ERROR_STR, msg, args); | |
| 476 va_end(args); | |
| 477 | |
| 478 while (--n && (buf[n] == CR || buf[n] == LF)) { /* void */ } | |
| 479 | |
| 480 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
| 2999 | 481 "libxml2 error: \"%*s\"", n + 1, buf); |
| 2139 | 482 } |
| 483 | |
| 484 | |
| 485 static ngx_buf_t * | |
| 486 ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
| 487 ngx_http_xslt_filter_ctx_t *ctx) | |
| 488 { | |
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489 int len, rc, doc_type; |
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490 u_char *type, *encoding; |
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491 ngx_buf_t *b; |
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492 ngx_uint_t i; |
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493 xmlChar *buf; |
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494 xmlDocPtr doc, res; |
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495 ngx_http_xslt_sheet_t *sheet; |
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496 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 497 |
| 498 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 499 sheet = conf->sheets.elts; | |
| 500 doc = ctx->doc; | |
| 501 | |
| 502 /* preallocate array for 4 params */ | |
| 503 | |
| 504 if (ngx_array_init(&ctx->params, r->pool, 4 * 2 + 1, sizeof(char *)) | |
| 505 != NGX_OK) | |
| 506 { | |
| 507 xmlFreeDoc(doc); | |
| 508 return NULL; | |
| 509 } | |
| 510 | |
| 511 for (i = 0; i < conf->sheets.nelts; i++) { | |
| 512 | |
|
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513 ctx->transform = xsltNewTransformContext(sheet[i].stylesheet, doc); |
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514 if (ctx->transform == NULL) { |
| 2139 | 515 xmlFreeDoc(doc); |
| 516 return NULL; | |
| 517 } | |
| 518 | |
|
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519 if (conf->params |
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520 && ngx_http_xslt_params(r, ctx, conf->params, 0) != NGX_OK) |
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521 { |
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522 xsltFreeTransformContext(ctx->transform); |
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523 xmlFreeDoc(doc); |
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524 return NULL; |
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525 } |
| 2139 | 526 |
|
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527 if (ngx_http_xslt_params(r, ctx, &sheet[i].params, 1) != NGX_OK) { |
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528 xsltFreeTransformContext(ctx->transform); |
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529 xmlFreeDoc(doc); |
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530 return NULL; |
|
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531 } |
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532 |
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Added xslt_param and xslt_string_param directives.
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533 res = xsltApplyStylesheetUser(sheet[i].stylesheet, doc, |
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534 ctx->params.elts, NULL, NULL, |
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535 ctx->transform); |
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536 |
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Added xslt_param and xslt_string_param directives.
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537 xsltFreeTransformContext(ctx->transform); |
| 2139 | 538 xmlFreeDoc(doc); |
| 539 | |
| 540 if (res == NULL) { | |
| 541 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 542 "xsltApplyStylesheet() failed"); | |
| 543 return NULL; | |
| 544 } | |
| 545 | |
| 546 doc = res; | |
| 547 | |
| 548 /* reset array elements */ | |
| 549 ctx->params.nelts = 0; | |
| 550 } | |
| 551 | |
|
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552 /* there must be at least one stylesheet */ |
| 2139 | 553 |
|
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554 if (r == r->main) { |
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555 type = ngx_http_xslt_content_type(sheet[i - 1].stylesheet); |
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556 |
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557 } else { |
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558 type = NULL; |
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559 } |
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560 |
|
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561 encoding = ngx_http_xslt_encoding(sheet[i - 1].stylesheet); |
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562 doc_type = doc->type; |
|
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563 |
|
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564 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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565 "xslt filter type: %d t:%s e:%s", |
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566 doc_type, type ? type : (u_char *) "(null)", |
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567 encoding ? encoding : (u_char *) "(null)"); |
| 2139 | 568 |
| 569 rc = xsltSaveResultToString(&buf, &len, doc, sheet[i - 1].stylesheet); | |
| 570 | |
| 571 xmlFreeDoc(doc); | |
| 572 | |
| 573 if (rc != 0) { | |
| 574 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 575 "xsltSaveResultToString() failed"); | |
| 576 return NULL; | |
| 577 } | |
| 578 | |
| 579 if (len == 0) { | |
| 580 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 581 "xsltSaveResultToString() returned zero-length result"); | |
| 582 return NULL; | |
| 583 } | |
| 584 | |
| 585 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 586 if (b == NULL) { | |
| 587 ngx_free(buf); | |
| 588 return NULL; | |
| 589 } | |
| 590 | |
| 591 b->pos = buf; | |
| 592 b->last = buf + len; | |
| 593 b->memory = 1; | |
| 594 | |
|
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595 if (encoding) { |
|
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596 r->headers_out.charset.len = ngx_strlen(encoding); |
|
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597 r->headers_out.charset.data = encoding; |
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598 } |
|
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599 |
|
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600 if (r != r->main) { |
|
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601 return b; |
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602 } |
|
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|
603 |
|
2899
61d5b945730a
fix XSLT filter in SSI subrequests
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diff
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|
604 b->last_buf = 1; |
|
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|
605 |
|
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606 if (type) { |
|
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|
607 len = ngx_strlen(type); |
|
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|
608 |
|
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|
609 r->headers_out.content_type_len = len; |
|
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|
610 r->headers_out.content_type.len = len; |
|
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|
611 r->headers_out.content_type.data = type; |
|
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|
612 |
|
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|
613 } else if (doc_type == XML_HTML_DOCUMENT_NODE) { |
|
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|
614 |
|
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changeset
|
615 r->headers_out.content_type_len = sizeof("text/html") - 1; |
|
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
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3508
diff
changeset
|
616 ngx_str_set(&r->headers_out.content_type, "text/html"); |
|
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|
617 } |
|
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|
618 |
|
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
changeset
|
619 r->headers_out.content_type_lowcase = NULL; |
|
896db5a09bd2
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changeset
|
620 |
| 2139 | 621 return b; |
| 622 } | |
| 623 | |
| 624 | |
| 625 static ngx_int_t | |
| 626 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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|
627 ngx_array_t *params, ngx_uint_t final) |
| 2139 | 628 { |
|
4554
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Added xslt_param and xslt_string_param directives.
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|
629 u_char *p, *last, *value, *dst, *src, **s; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
630 size_t len; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
631 ngx_uint_t i; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
632 ngx_str_t string; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
633 ngx_http_xslt_param_t *param; |
| 2139 | 634 |
| 635 param = params->elts; | |
| 636 | |
| 637 for (i = 0; i < params->nelts; i++) { | |
| 638 | |
|
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
639 if (ngx_http_complex_value(r, ¶m[i].value, &string) != NGX_OK) { |
| 2139 | 640 return NGX_ERROR; |
| 641 } | |
| 642 | |
| 643 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 644 "xslt filter param: \"%s\"", string.data); | |
| 645 | |
|
4554
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Added xslt_param and xslt_string_param directives.
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|
646 if (param[i].name) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
647 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
648 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
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|
649 "xslt filter param name: \"%s\"", param[i].name); |
|
212a0251951b
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|
650 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
651 if (param[i].quote) { |
|
212a0251951b
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|
652 if (xsltQuoteOneUserParam(ctx->transform, param[i].name, |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
653 string.data) |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
654 != 0) |
|
212a0251951b
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|
655 { |
|
212a0251951b
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|
656 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
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|
657 "xsltQuoteOneUserParam(\"%s\", \"%s\") failed", |
|
212a0251951b
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|
658 param[i].name, string.data); |
|
212a0251951b
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|
659 return NGX_ERROR; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
660 } |
|
212a0251951b
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|
661 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
662 continue; |
|
212a0251951b
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diff
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|
663 } |
|
212a0251951b
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changeset
|
664 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
665 s = ngx_array_push(&ctx->params); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
666 if (s == NULL) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
667 return NGX_ERROR; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
668 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
669 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
670 *s = param[i].name; |
|
212a0251951b
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|
671 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
672 s = ngx_array_push(&ctx->params); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
673 if (s == NULL) { |
|
212a0251951b
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|
674 return NGX_ERROR; |
|
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Added xslt_param and xslt_string_param directives.
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|
675 } |
|
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Added xslt_param and xslt_string_param directives.
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|
676 |
|
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Added xslt_param and xslt_string_param directives.
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|
677 *s = string.data; |
|
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Added xslt_param and xslt_string_param directives.
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|
678 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
679 continue; |
|
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Added xslt_param and xslt_string_param directives.
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|
680 } |
|
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diff
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|
681 |
|
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|
682 /* |
|
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|
683 * parse param1=value1:param2=value2 syntax as used by parameters |
|
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|
684 * specified in xslt_stylesheet directives |
|
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|
685 */ |
|
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|
686 |
| 2139 | 687 p = string.data; |
|
4553
3dd8a403faa1
Fixed off-by-one in xslt parameter parsing.
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parents:
4412
diff
changeset
|
688 last = string.data + string.len; |
| 2139 | 689 |
| 690 while (p && *p) { | |
| 691 | |
| 692 value = p; | |
| 693 p = (u_char *) ngx_strchr(p, '='); | |
| 694 if (p == NULL) { | |
| 695 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 696 "invalid libxslt parameter \"%s\"", value); | |
| 697 return NGX_ERROR; | |
| 698 } | |
| 699 *p++ = '\0'; | |
| 700 | |
| 701 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 702 "xslt filter param name: \"%s\"", value); | |
| 703 | |
| 704 s = ngx_array_push(&ctx->params); | |
| 705 if (s == NULL) { | |
| 706 return NGX_ERROR; | |
| 707 } | |
| 708 | |
| 709 *s = value; | |
| 710 | |
| 711 value = p; | |
| 712 p = (u_char *) ngx_strchr(p, ':'); | |
| 713 | |
| 714 if (p) { | |
| 715 len = p - value; | |
| 716 *p++ = '\0'; | |
| 717 | |
| 718 } else { | |
| 719 len = last - value; | |
| 720 } | |
| 721 | |
| 722 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 723 "xslt filter param value: \"%s\"", value); | |
| 724 | |
| 725 dst = value; | |
| 726 src = value; | |
| 727 | |
| 728 ngx_unescape_uri(&dst, &src, len, 0); | |
| 729 | |
| 730 *dst = '\0'; | |
| 731 | |
| 732 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 733 "xslt filter param unescaped: \"%s\"", value); | |
| 734 | |
| 735 s = ngx_array_push(&ctx->params); | |
| 736 if (s == NULL) { | |
| 737 return NGX_ERROR; | |
| 738 } | |
| 739 | |
| 740 *s = value; | |
| 741 } | |
| 742 } | |
| 743 | |
|
4554
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|
744 if (final) { |
|
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|
745 s = ngx_array_push(&ctx->params); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
746 if (s == NULL) { |
|
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Added xslt_param and xslt_string_param directives.
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parents:
4553
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|
747 return NGX_ERROR; |
|
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Added xslt_param and xslt_string_param directives.
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|
748 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
Maxim Dounin <mdounin@mdounin.ru>
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|
749 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
750 *s = NULL; |
| 2139 | 751 } |
| 752 | |
| 753 return NGX_OK; | |
| 754 } | |
| 755 | |
| 756 | |
|
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|
757 static u_char * |
|
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|
758 ngx_http_xslt_content_type(xsltStylesheetPtr s) |
|
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|
759 { |
|
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|
760 u_char *type; |
|
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|
761 |
|
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|
762 if (s->mediaType) { |
|
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763 return s->mediaType; |
|
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|
764 } |
|
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|
765 |
|
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|
766 for (s = s->imports; s; s = s->next) { |
|
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|
767 |
|
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|
768 type = ngx_http_xslt_content_type(s); |
|
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|
769 |
|
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|
770 if (type) { |
|
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771 return type; |
|
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|
772 } |
|
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|
773 } |
|
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|
774 |
|
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|
775 return NULL; |
|
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|
776 } |
|
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|
777 |
|
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|
778 |
|
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|
779 static u_char * |
|
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|
780 ngx_http_xslt_encoding(xsltStylesheetPtr s) |
|
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|
781 { |
|
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|
782 u_char *encoding; |
|
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|
783 |
|
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|
784 if (s->encoding) { |
|
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changeset
|
785 return s->encoding; |
|
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|
786 } |
|
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diff
changeset
|
787 |
|
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parents:
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|
788 for (s = s->imports; s; s = s->next) { |
|
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|
789 |
|
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changeset
|
790 encoding = ngx_http_xslt_encoding(s); |
|
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changeset
|
791 |
|
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changeset
|
792 if (encoding) { |
|
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|
793 return encoding; |
|
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parents:
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|
794 } |
|
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|
795 } |
|
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changeset
|
796 |
|
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|
797 return NULL; |
|
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|
798 } |
|
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|
799 |
|
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changeset
|
800 |
| 2139 | 801 static void |
| 802 ngx_http_xslt_cleanup(void *data) | |
| 803 { | |
| 804 ngx_free(data); | |
| 805 } | |
| 806 | |
| 807 | |
| 808 static char * | |
| 809 ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 810 { | |
|
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changeset
|
811 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 812 |
|
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|
813 ngx_str_t *value; |
|
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|
814 ngx_uint_t i; |
|
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|
815 ngx_pool_cleanup_t *cln; |
|
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|
816 ngx_http_xslt_file_t *file; |
|
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|
817 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 818 |
| 819 if (xlcf->dtd) { | |
| 820 return "is duplicate"; | |
| 821 } | |
| 822 | |
| 823 value = cf->args->elts; | |
| 824 | |
|
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|
825 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
|
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|
826 |
|
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|
827 file = xmcf->dtd_files.elts; |
|
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changeset
|
828 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
|
829 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
|
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|
830 xlcf->dtd = file[i].data; |
|
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|
831 return NGX_CONF_OK; |
|
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|
832 } |
|
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|
833 } |
|
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|
834 |
|
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|
835 cln = ngx_pool_cleanup_add(cf->pool, 0); |
|
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|
836 if (cln == NULL) { |
|
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|
837 return NGX_CONF_ERROR; |
|
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|
838 } |
|
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|
839 |
| 2139 | 840 xlcf->dtd = xmlParseDTD(NULL, (xmlChar *) value[1].data); |
| 841 | |
| 842 if (xlcf->dtd == NULL) { | |
| 843 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, "xmlParseDTD() failed"); | |
| 844 return NGX_CONF_ERROR; | |
| 845 } | |
| 846 | |
|
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|
847 cln->handler = ngx_http_xslt_cleanup_dtd; |
|
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|
848 cln->data = xlcf->dtd; |
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|
849 |
|
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|
850 file = ngx_array_push(&xmcf->dtd_files); |
|
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|
851 if (file == NULL) { |
|
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|
852 return NGX_CONF_ERROR; |
|
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|
853 } |
|
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|
854 |
|
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|
855 file->name = value[1].data; |
|
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|
856 file->data = xlcf->dtd; |
|
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|
857 |
| 2139 | 858 return NGX_CONF_OK; |
| 859 } | |
| 860 | |
| 861 | |
| 862 | |
| 863 static char * | |
| 864 ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 865 { | |
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866 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 867 |
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868 ngx_str_t *value; |
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869 ngx_uint_t i, n; |
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870 ngx_pool_cleanup_t *cln; |
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871 ngx_http_xslt_file_t *file; |
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872 ngx_http_xslt_sheet_t *sheet; |
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873 ngx_http_xslt_param_t *param; |
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874 ngx_http_compile_complex_value_t ccv; |
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875 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 876 |
| 877 value = cf->args->elts; | |
| 878 | |
| 879 if (xlcf->sheets.elts == NULL) { | |
| 880 if (ngx_array_init(&xlcf->sheets, cf->pool, 1, | |
| 881 sizeof(ngx_http_xslt_sheet_t)) | |
| 882 != NGX_OK) | |
| 883 { | |
| 884 return NGX_CONF_ERROR; | |
| 885 } | |
| 886 } | |
| 887 | |
| 888 sheet = ngx_array_push(&xlcf->sheets); | |
| 889 if (sheet == NULL) { | |
| 890 return NGX_CONF_ERROR; | |
| 891 } | |
| 892 | |
| 893 ngx_memzero(sheet, sizeof(ngx_http_xslt_sheet_t)); | |
| 894 | |
|
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895 if (ngx_get_full_name(cf->pool, &cf->cycle->prefix, &value[1]) != NGX_OK) { |
| 2139 | 896 return NGX_CONF_ERROR; |
| 897 } | |
| 898 | |
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899 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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900 |
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901 file = xmcf->sheet_files.elts; |
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902 for (i = 0; i < xmcf->sheet_files.nelts; i++) { |
|
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Fixed the reuse of parsed DTDs and XSLTs.
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903 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
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904 sheet->stylesheet = file[i].data; |
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905 goto found; |
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906 } |
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907 } |
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908 |
| 2139 | 909 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 910 if (cln == NULL) { | |
| 911 return NGX_CONF_ERROR; | |
| 912 } | |
| 913 | |
| 914 sheet->stylesheet = xsltParseStylesheetFile(value[1].data); | |
| 915 if (sheet->stylesheet == NULL) { | |
| 916 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
| 917 "xsltParseStylesheetFile(\"%s\") failed", | |
| 918 value[1].data); | |
| 919 return NGX_CONF_ERROR; | |
| 920 } | |
| 921 | |
| 922 cln->handler = ngx_http_xslt_cleanup_stylesheet; | |
| 923 cln->data = sheet->stylesheet; | |
| 924 | |
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925 file = ngx_array_push(&xmcf->sheet_files); |
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926 if (file == NULL) { |
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927 return NGX_CONF_ERROR; |
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928 } |
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929 |
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930 file->name = value[1].data; |
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931 file->data = sheet->stylesheet; |
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932 |
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933 found: |
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934 |
| 2139 | 935 n = cf->args->nelts; |
| 936 | |
| 937 if (n == 2) { | |
| 938 return NGX_CONF_OK; | |
| 939 } | |
| 940 | |
| 941 if (ngx_array_init(&sheet->params, cf->pool, n - 2, | |
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942 sizeof(ngx_http_xslt_param_t)) |
| 2139 | 943 != NGX_OK) |
| 944 { | |
| 945 return NGX_CONF_ERROR; | |
| 946 } | |
| 947 | |
| 948 for (i = 2; i < n; i++) { | |
| 949 | |
| 950 param = ngx_array_push(&sheet->params); | |
| 951 if (param == NULL) { | |
| 952 return NGX_CONF_ERROR; | |
| 953 } | |
| 954 | |
|
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955 ngx_memzero(param, sizeof(ngx_http_xslt_param_t)); |
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956 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| 2139 | 957 |
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958 ccv.cf = cf; |
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959 ccv.value = &value[i]; |
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960 ccv.complex_value = ¶m->value; |
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961 ccv.zero = 1; |
| 2139 | 962 |
|
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963 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| 2139 | 964 return NGX_CONF_ERROR; |
| 965 } | |
| 966 } | |
| 967 | |
| 968 return NGX_CONF_OK; | |
| 969 } | |
| 970 | |
| 971 | |
|
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|
972 static char * |
|
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973 ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
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974 { |
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975 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
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976 |
|
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977 ngx_http_xslt_param_t *param; |
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978 ngx_http_compile_complex_value_t ccv; |
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979 ngx_str_t *value; |
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|
980 |
|
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981 value = cf->args->elts; |
|
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|
982 |
|
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|
983 if (xlcf->params == NULL) { |
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|
984 xlcf->params = ngx_array_create(cf->pool, 2, |
|
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|
985 sizeof(ngx_http_xslt_param_t)); |
|
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|
986 if (xlcf->params == NULL) { |
|
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987 return NGX_CONF_ERROR; |
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988 } |
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|
989 } |
|
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|
990 |
|
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|
991 param = ngx_array_push(xlcf->params); |
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992 if (param == NULL) { |
|
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993 return NGX_CONF_ERROR; |
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994 } |
|
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|
995 |
|
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996 param->name = value[1].data; |
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|
997 param->quote = (cmd->post == NULL) ? 0 : 1; |
|
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|
998 |
|
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999 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
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1000 |
|
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1001 ccv.cf = cf; |
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1002 ccv.value = &value[2]; |
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1003 ccv.complex_value = ¶m->value; |
|
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1004 ccv.zero = 1; |
|
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|
1005 |
|
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1006 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
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1007 return NGX_CONF_ERROR; |
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1008 } |
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|
1009 |
|
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1010 return NGX_CONF_OK; |
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1011 } |
|
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|
1012 |
|
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1013 |
| 2139 | 1014 static void |
|
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1015 ngx_http_xslt_cleanup_dtd(void *data) |
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1016 { |
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1017 xmlFreeDtd(data); |
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1018 } |
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1019 |
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1020 |
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1021 static void |
| 2139 | 1022 ngx_http_xslt_cleanup_stylesheet(void *data) |
| 1023 { | |
|
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1024 xsltFreeStylesheet(data); |
| 2139 | 1025 } |
| 1026 | |
| 1027 | |
|
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1028 static void * |
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1029 ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf) |
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1030 { |
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1031 ngx_http_xslt_filter_main_conf_t *conf; |
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1032 |
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1033 conf = ngx_palloc(cf->pool, sizeof(ngx_http_xslt_filter_main_conf_t)); |
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1034 if (conf == NULL) { |
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1035 return NULL; |
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1036 } |
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1037 |
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1038 if (ngx_array_init(&conf->dtd_files, cf->pool, 1, |
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1039 sizeof(ngx_http_xslt_file_t)) |
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1040 != NGX_OK) |
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1041 { |
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1042 return NULL; |
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1043 } |
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1044 |
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1045 if (ngx_array_init(&conf->sheet_files, cf->pool, 1, |
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1046 sizeof(ngx_http_xslt_file_t)) |
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1047 != NGX_OK) |
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1048 { |
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1049 return NULL; |
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1050 } |
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1051 |
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1052 return conf; |
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1053 } |
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1054 |
| 2139 | 1055 |
| 1056 static void * | |
| 1057 ngx_http_xslt_filter_create_conf(ngx_conf_t *cf) | |
| 1058 { | |
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1059 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 1060 |
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1061 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_xslt_filter_loc_conf_t)); |
| 2139 | 1062 if (conf == NULL) { |
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1063 return NULL; |
| 2139 | 1064 } |
| 1065 | |
| 1066 /* | |
| 1067 * set by ngx_pcalloc(): | |
| 1068 * | |
| 2148 | 1069 * conf->dtd = NULL; |
| 1070 * conf->sheets = { NULL }; | |
| 1071 * conf->types = { NULL }; | |
| 1072 * conf->types_keys = NULL; | |
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1073 * conf->params = NULL; |
| 2139 | 1074 */ |
| 1075 | |
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1076 conf->last_modified = NGX_CONF_UNSET; |
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1077 |
| 2139 | 1078 return conf; |
| 1079 } | |
| 1080 | |
| 1081 | |
| 1082 static char * | |
| 1083 ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1084 { | |
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1085 ngx_http_xslt_filter_loc_conf_t *prev = parent; |
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1086 ngx_http_xslt_filter_loc_conf_t *conf = child; |
| 2139 | 1087 |
| 1088 if (conf->dtd == NULL) { | |
| 1089 conf->dtd = prev->dtd; | |
| 1090 } | |
| 1091 | |
| 1092 if (conf->sheets.nelts == 0) { | |
| 1093 conf->sheets = prev->sheets; | |
| 1094 } | |
| 1095 | |
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1096 if (conf->params == NULL) { |
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1097 conf->params = prev->params; |
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1098 } |
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1099 |
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1100 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types, |
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1101 &prev->types_keys, &prev->types, |
| 2148 | 1102 ngx_http_xslt_default_types) |
| 2139 | 1103 != NGX_OK) |
| 1104 { | |
| 1105 return NGX_CONF_ERROR; | |
| 1106 } | |
| 1107 | |
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1108 ngx_conf_merge_value(conf->last_modified, prev->last_modified, 0); |
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1109 |
| 2139 | 1110 return NGX_CONF_OK; |
| 1111 } | |
| 1112 | |
| 1113 | |
| 1114 static ngx_int_t | |
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1115 ngx_http_xslt_filter_preconfiguration(ngx_conf_t *cf) |
| 2139 | 1116 { |
| 1117 xmlInitParser(); | |
| 1118 | |
| 2299 | 1119 #if (NGX_HAVE_EXSLT) |
| 1120 exsltRegisterAll(); | |
| 1121 #endif | |
| 1122 | |
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1123 return NGX_OK; |
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1124 } |
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1125 |
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1126 |
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1127 static ngx_int_t |
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1128 ngx_http_xslt_filter_init(ngx_conf_t *cf) |
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1129 { |
| 2139 | 1130 ngx_http_next_header_filter = ngx_http_top_header_filter; |
| 1131 ngx_http_top_header_filter = ngx_http_xslt_header_filter; | |
| 1132 | |
| 1133 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
| 1134 ngx_http_top_body_filter = ngx_http_xslt_body_filter; | |
| 1135 | |
| 1136 return NGX_OK; | |
| 1137 } | |
| 1138 | |
| 1139 | |
| 1140 static void | |
| 1141 ngx_http_xslt_filter_exit(ngx_cycle_t *cycle) | |
| 1142 { | |
| 1143 xsltCleanupGlobals(); | |
| 1144 xmlCleanupParser(); | |
| 1145 } |