Mercurial > hg > nginx
annotate src/http/modules/ngx_http_xslt_filter_module.c @ 5204:a64c8a5da336
PCRE: retain input pattern for all regular expressions.
Previously, input pattern was kept only for regular expressions
with named captures, which resulted in error log entries without
input pattern for PCRE errors that occured while processing
regular expressions without them.
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
| author | Piotr Sikora <piotr@cloudflare.com> |
|---|---|
| date | Thu, 02 May 2013 03:26:36 -0700 |
| parents | 2570296374b4 |
| children | 2139768ee404 |
| 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_http_xslt_filter_loc_conf_t; |
| 2139 | 62 |
| 63 | |
| 64 typedef struct { | |
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65 xmlDocPtr doc; |
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66 xmlParserCtxtPtr ctxt; |
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67 xsltTransformContextPtr transform; |
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68 ngx_http_request_t *request; |
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69 ngx_array_t params; |
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70 |
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71 ngx_uint_t done; /* unsigned done:1; */ |
| 2139 | 72 } ngx_http_xslt_filter_ctx_t; |
| 73 | |
| 74 | |
| 75 static ngx_int_t ngx_http_xslt_send(ngx_http_request_t *r, | |
| 76 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b); | |
| 77 static ngx_int_t ngx_http_xslt_add_chunk(ngx_http_request_t *r, | |
| 78 ngx_http_xslt_filter_ctx_t *ctx, ngx_buf_t *b); | |
| 79 | |
| 80 | |
| 81 static void ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
| 82 const xmlChar *externalId, const xmlChar *systemId); | |
| 83 static void ngx_cdecl ngx_http_xslt_sax_error(void *data, const char *msg, ...); | |
| 84 | |
| 85 | |
| 86 static ngx_buf_t *ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
| 87 ngx_http_xslt_filter_ctx_t *ctx); | |
| 88 static ngx_int_t ngx_http_xslt_params(ngx_http_request_t *r, | |
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89 ngx_http_xslt_filter_ctx_t *ctx, ngx_array_t *params, ngx_uint_t final); |
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90 static u_char *ngx_http_xslt_content_type(xsltStylesheetPtr s); |
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91 static u_char *ngx_http_xslt_encoding(xsltStylesheetPtr s); |
| 2139 | 92 static void ngx_http_xslt_cleanup(void *data); |
| 93 | |
| 94 static char *ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 95 void *conf); | |
| 96 static char *ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 97 void *conf); | |
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98 static char *ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, |
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99 void *conf); |
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100 static void ngx_http_xslt_cleanup_dtd(void *data); |
| 2139 | 101 static void ngx_http_xslt_cleanup_stylesheet(void *data); |
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102 static void *ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf); |
| 2139 | 103 static void *ngx_http_xslt_filter_create_conf(ngx_conf_t *cf); |
| 104 static char *ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, | |
| 105 void *child); | |
| 106 static ngx_int_t ngx_http_xslt_filter_init(ngx_conf_t *cf); | |
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107 static void ngx_http_xslt_filter_exit(ngx_cycle_t *cycle); |
| 2139 | 108 |
| 109 | |
| 110 ngx_str_t ngx_http_xslt_default_types[] = { | |
| 111 ngx_string("text/xml"), | |
| 112 ngx_null_string | |
| 113 }; | |
| 114 | |
| 115 | |
| 116 static ngx_command_t ngx_http_xslt_filter_commands[] = { | |
| 117 | |
| 118 { ngx_string("xml_entities"), | |
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119 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, |
| 2139 | 120 ngx_http_xslt_entities, |
| 121 NGX_HTTP_LOC_CONF_OFFSET, | |
| 122 0, | |
| 123 NULL }, | |
| 124 | |
| 125 { ngx_string("xslt_stylesheet"), | |
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126 NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
| 2139 | 127 ngx_http_xslt_stylesheet, |
| 128 NGX_HTTP_LOC_CONF_OFFSET, | |
| 129 0, | |
| 130 NULL }, | |
| 131 | |
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132 { ngx_string("xslt_param"), |
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133 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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134 ngx_http_xslt_param, |
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135 NGX_HTTP_LOC_CONF_OFFSET, |
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136 0, |
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137 NULL }, |
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138 |
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139 { ngx_string("xslt_string_param"), |
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140 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE2, |
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141 ngx_http_xslt_param, |
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142 NGX_HTTP_LOC_CONF_OFFSET, |
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143 0, |
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144 (void *) 1 }, |
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145 |
| 2139 | 146 { ngx_string("xslt_types"), |
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147 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, |
| 2139 | 148 ngx_http_types_slot, |
| 149 NGX_HTTP_LOC_CONF_OFFSET, | |
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150 offsetof(ngx_http_xslt_filter_loc_conf_t, types_keys), |
| 2139 | 151 &ngx_http_xslt_default_types[0] }, |
| 152 | |
| 153 ngx_null_command | |
| 154 }; | |
| 155 | |
| 156 | |
| 157 static ngx_http_module_t ngx_http_xslt_filter_module_ctx = { | |
| 158 NULL, /* preconfiguration */ | |
| 159 ngx_http_xslt_filter_init, /* postconfiguration */ | |
| 160 | |
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161 ngx_http_xslt_filter_create_main_conf, /* create main configuration */ |
| 2139 | 162 NULL, /* init main configuration */ |
| 163 | |
| 164 NULL, /* create server configuration */ | |
| 165 NULL, /* merge server configuration */ | |
| 166 | |
| 167 ngx_http_xslt_filter_create_conf, /* create location configuration */ | |
| 168 ngx_http_xslt_filter_merge_conf /* merge location configuration */ | |
| 169 }; | |
| 170 | |
| 171 | |
| 172 ngx_module_t ngx_http_xslt_filter_module = { | |
| 173 NGX_MODULE_V1, | |
| 174 &ngx_http_xslt_filter_module_ctx, /* module context */ | |
| 175 ngx_http_xslt_filter_commands, /* module directives */ | |
| 176 NGX_HTTP_MODULE, /* module type */ | |
| 177 NULL, /* init master */ | |
| 178 NULL, /* init module */ | |
| 179 NULL, /* init process */ | |
| 180 NULL, /* init thread */ | |
| 181 NULL, /* exit thread */ | |
| 2983 | 182 ngx_http_xslt_filter_exit, /* exit process */ |
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183 ngx_http_xslt_filter_exit, /* exit master */ |
| 2139 | 184 NGX_MODULE_V1_PADDING |
| 185 }; | |
| 186 | |
| 187 | |
| 188 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; | |
| 189 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; | |
| 190 | |
| 191 | |
| 192 static ngx_int_t | |
| 193 ngx_http_xslt_header_filter(ngx_http_request_t *r) | |
| 194 { | |
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195 ngx_http_xslt_filter_ctx_t *ctx; |
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196 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 197 |
| 198 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 199 "xslt filter header"); | |
| 200 | |
| 201 if (r->headers_out.status == NGX_HTTP_NOT_MODIFIED) { | |
| 202 return ngx_http_next_header_filter(r); | |
| 203 } | |
| 204 | |
| 205 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 206 | |
| 207 if (conf->sheets.nelts == 0 | |
| 2148 | 208 || ngx_http_test_content_type(r, &conf->types) == NULL) |
| 2139 | 209 { |
| 210 return ngx_http_next_header_filter(r); | |
| 211 } | |
| 212 | |
| 213 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
| 214 | |
| 215 if (ctx) { | |
| 216 return ngx_http_next_header_filter(r); | |
| 217 } | |
| 218 | |
| 219 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_xslt_filter_ctx_t)); | |
| 220 if (ctx == NULL) { | |
| 221 return NGX_ERROR; | |
| 222 } | |
| 223 | |
| 224 ngx_http_set_ctx(r, ctx, ngx_http_xslt_filter_module); | |
| 225 | |
| 226 r->main_filter_need_in_memory = 1; | |
| 227 | |
| 228 return NGX_OK; | |
| 229 } | |
| 230 | |
| 231 | |
| 232 static ngx_int_t | |
| 233 ngx_http_xslt_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
| 234 { | |
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235 int wellFormed; |
| 2139 | 236 ngx_chain_t *cl; |
| 237 ngx_http_xslt_filter_ctx_t *ctx; | |
| 238 | |
| 239 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 240 "xslt filter body"); | |
| 241 | |
| 242 if (in == NULL) { | |
| 243 return ngx_http_next_body_filter(r, in); | |
| 244 } | |
| 245 | |
| 246 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
| 247 | |
| 248 if (ctx == NULL || ctx->done) { | |
| 249 return ngx_http_next_body_filter(r, in); | |
| 250 } | |
| 251 | |
| 252 for (cl = in; cl; cl = cl->next) { | |
| 253 | |
| 254 if (ngx_http_xslt_add_chunk(r, ctx, cl->buf) != NGX_OK) { | |
| 255 | |
| 3642 | 256 if (ctx->ctxt->myDoc) { |
| 2139 | 257 |
| 258 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 259 ctx->ctxt->myDoc->extSubset = NULL; | |
| 260 #endif | |
| 261 xmlFreeDoc(ctx->ctxt->myDoc); | |
| 262 } | |
| 263 | |
| 264 xmlFreeParserCtxt(ctx->ctxt); | |
| 265 | |
| 266 return ngx_http_xslt_send(r, ctx, NULL); | |
| 267 } | |
| 268 | |
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269 if (cl->buf->last_buf || cl->buf->last_in_chain) { |
| 2139 | 270 |
| 271 ctx->doc = ctx->ctxt->myDoc; | |
| 272 | |
| 273 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 274 ctx->doc->extSubset = NULL; | |
| 275 #endif | |
| 276 | |
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277 wellFormed = ctx->ctxt->wellFormed; |
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278 |
| 2139 | 279 xmlFreeParserCtxt(ctx->ctxt); |
| 280 | |
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281 if (wellFormed) { |
| 2139 | 282 return ngx_http_xslt_send(r, ctx, |
| 283 ngx_http_xslt_apply_stylesheet(r, ctx)); | |
| 284 } | |
| 285 | |
| 286 xmlFreeDoc(ctx->doc); | |
| 287 | |
| 288 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 289 "not well formed XML document"); | |
| 290 | |
| 291 return ngx_http_xslt_send(r, ctx, NULL); | |
| 292 } | |
| 293 } | |
| 294 | |
| 295 return NGX_OK; | |
| 296 } | |
| 297 | |
| 298 | |
| 299 static ngx_int_t | |
| 300 ngx_http_xslt_send(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
| 301 ngx_buf_t *b) | |
| 302 { | |
| 303 ngx_int_t rc; | |
| 304 ngx_chain_t out; | |
| 305 ngx_pool_cleanup_t *cln; | |
| 306 | |
| 307 ctx->done = 1; | |
| 308 | |
| 309 if (b == NULL) { | |
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310 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
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311 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 2139 | 312 } |
| 313 | |
| 314 cln = ngx_pool_cleanup_add(r->pool, 0); | |
| 315 | |
| 316 if (cln == NULL) { | |
| 317 ngx_free(b->pos); | |
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318 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
| 2139 | 319 NGX_HTTP_INTERNAL_SERVER_ERROR); |
| 320 } | |
| 321 | |
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322 if (r == r->main) { |
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323 r->headers_out.content_length_n = b->last - b->pos; |
| 2139 | 324 |
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325 if (r->headers_out.content_length) { |
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326 r->headers_out.content_length->hash = 0; |
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327 r->headers_out.content_length = NULL; |
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328 } |
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329 |
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330 ngx_http_clear_last_modified(r); |
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331 ngx_http_clear_etag(r); |
| 2139 | 332 } |
| 333 | |
| 334 rc = ngx_http_next_header_filter(r); | |
| 335 | |
| 336 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 337 ngx_free(b->pos); | |
| 338 return rc; | |
| 339 } | |
| 340 | |
| 341 cln->handler = ngx_http_xslt_cleanup; | |
| 342 cln->data = b->pos; | |
| 343 | |
| 344 out.buf = b; | |
| 345 out.next = NULL; | |
| 346 | |
| 347 return ngx_http_next_body_filter(r, &out); | |
| 348 } | |
| 349 | |
| 350 | |
| 351 static ngx_int_t | |
| 352 ngx_http_xslt_add_chunk(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
| 353 ngx_buf_t *b) | |
| 354 { | |
|
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355 int err; |
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356 xmlParserCtxtPtr ctxt; |
| 2139 | 357 |
| 358 if (ctx->ctxt == NULL) { | |
| 359 | |
| 360 ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL); | |
| 361 if (ctxt == NULL) { | |
| 362 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 363 "xmlCreatePushParserCtxt() failed"); | |
| 364 return NGX_ERROR; | |
| 365 } | |
|
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366 xmlCtxtUseOptions(ctxt, XML_PARSE_NOENT|XML_PARSE_DTDLOAD |
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367 |XML_PARSE_NOWARNING); |
| 2139 | 368 |
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369 ctxt->sax->externalSubset = ngx_http_xslt_sax_external_subset; |
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370 ctxt->sax->setDocumentLocator = NULL; |
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371 ctxt->sax->error = ngx_http_xslt_sax_error; |
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372 ctxt->sax->fatalError = ngx_http_xslt_sax_error; |
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373 ctxt->sax->_private = ctx; |
| 2139 | 374 |
| 375 ctx->ctxt = ctxt; | |
| 376 ctx->request = r; | |
| 377 } | |
| 378 | |
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379 err = xmlParseChunk(ctx->ctxt, (char *) b->pos, (int) (b->last - b->pos), |
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380 (b->last_buf) || (b->last_in_chain)); |
| 2139 | 381 |
| 382 if (err == 0) { | |
| 383 b->pos = b->last; | |
| 384 return NGX_OK; | |
| 385 } | |
| 386 | |
| 387 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 388 "xmlParseChunk() failed, error:%d", err); | |
| 389 | |
| 390 return NGX_ERROR; | |
| 391 } | |
| 392 | |
| 393 | |
| 394 static void | |
| 395 ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
| 396 const xmlChar *externalId, const xmlChar *systemId) | |
| 397 { | |
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398 xmlParserCtxtPtr ctxt = data; |
| 2139 | 399 |
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400 xmlDocPtr doc; |
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401 xmlDtdPtr dtd; |
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402 ngx_http_request_t *r; |
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403 ngx_http_xslt_filter_ctx_t *ctx; |
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404 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 405 |
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406 ctx = ctxt->sax->_private; |
| 2139 | 407 r = ctx->request; |
| 408 | |
| 409 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 410 | |
| 411 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 412 "xslt filter extSubset: \"%s\" \"%s\" \"%s\"", | |
| 413 name ? name : (xmlChar *) "", | |
| 414 externalId ? externalId : (xmlChar *) "", | |
| 415 systemId ? systemId : (xmlChar *) ""); | |
| 416 | |
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417 doc = ctxt->myDoc; |
| 2139 | 418 |
| 419 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 420 | |
| 421 dtd = conf->dtd; | |
| 422 | |
| 423 #else | |
| 424 | |
| 425 dtd = xmlCopyDtd(conf->dtd); | |
| 426 if (dtd == NULL) { | |
| 427 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 428 "xmlCopyDtd() failed"); | |
| 429 return; | |
| 430 } | |
| 431 | |
| 432 if (doc->children == NULL) { | |
| 433 xmlAddChild((xmlNodePtr) doc, (xmlNodePtr) dtd); | |
| 434 | |
| 435 } else { | |
| 436 xmlAddPrevSibling(doc->children, (xmlNodePtr) dtd); | |
| 437 } | |
| 438 | |
| 439 #endif | |
| 440 | |
| 441 doc->extSubset = dtd; | |
| 442 } | |
| 443 | |
| 444 | |
| 445 static void ngx_cdecl | |
| 446 ngx_http_xslt_sax_error(void *data, const char *msg, ...) | |
| 447 { | |
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448 xmlParserCtxtPtr ctxt = data; |
| 2139 | 449 |
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450 size_t n; |
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451 va_list args; |
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452 ngx_http_xslt_filter_ctx_t *ctx; |
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453 u_char buf[NGX_MAX_ERROR_STR]; |
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454 |
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455 ctx = ctxt->sax->_private; |
| 2139 | 456 |
| 457 buf[0] = '\0'; | |
| 458 | |
| 459 va_start(args, msg); | |
| 460 n = (size_t) vsnprintf((char *) buf, NGX_MAX_ERROR_STR, msg, args); | |
| 461 va_end(args); | |
| 462 | |
| 463 while (--n && (buf[n] == CR || buf[n] == LF)) { /* void */ } | |
| 464 | |
| 465 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
| 2999 | 466 "libxml2 error: \"%*s\"", n + 1, buf); |
| 2139 | 467 } |
| 468 | |
| 469 | |
| 470 static ngx_buf_t * | |
| 471 ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
| 472 ngx_http_xslt_filter_ctx_t *ctx) | |
| 473 { | |
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474 int len, rc, doc_type; |
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475 u_char *type, *encoding; |
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476 ngx_buf_t *b; |
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477 ngx_uint_t i; |
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478 xmlChar *buf; |
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479 xmlDocPtr doc, res; |
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480 ngx_http_xslt_sheet_t *sheet; |
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481 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 482 |
| 483 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 484 sheet = conf->sheets.elts; | |
| 485 doc = ctx->doc; | |
| 486 | |
| 487 /* preallocate array for 4 params */ | |
| 488 | |
| 489 if (ngx_array_init(&ctx->params, r->pool, 4 * 2 + 1, sizeof(char *)) | |
| 490 != NGX_OK) | |
| 491 { | |
| 492 xmlFreeDoc(doc); | |
| 493 return NULL; | |
| 494 } | |
| 495 | |
| 496 for (i = 0; i < conf->sheets.nelts; i++) { | |
| 497 | |
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498 ctx->transform = xsltNewTransformContext(sheet[i].stylesheet, doc); |
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499 if (ctx->transform == NULL) { |
| 2139 | 500 xmlFreeDoc(doc); |
| 501 return NULL; | |
| 502 } | |
| 503 | |
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504 if (conf->params |
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505 && ngx_http_xslt_params(r, ctx, conf->params, 0) != NGX_OK) |
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506 { |
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507 xsltFreeTransformContext(ctx->transform); |
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508 xmlFreeDoc(doc); |
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509 return NULL; |
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510 } |
| 2139 | 511 |
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512 if (ngx_http_xslt_params(r, ctx, &sheet[i].params, 1) != NGX_OK) { |
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513 xsltFreeTransformContext(ctx->transform); |
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514 xmlFreeDoc(doc); |
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515 return NULL; |
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516 } |
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517 |
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518 res = xsltApplyStylesheetUser(sheet[i].stylesheet, doc, |
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519 ctx->params.elts, NULL, NULL, |
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520 ctx->transform); |
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521 |
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522 xsltFreeTransformContext(ctx->transform); |
| 2139 | 523 xmlFreeDoc(doc); |
| 524 | |
| 525 if (res == NULL) { | |
| 526 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 527 "xsltApplyStylesheet() failed"); | |
| 528 return NULL; | |
| 529 } | |
| 530 | |
| 531 doc = res; | |
| 532 | |
| 533 /* reset array elements */ | |
| 534 ctx->params.nelts = 0; | |
| 535 } | |
| 536 | |
|
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537 /* there must be at least one stylesheet */ |
| 2139 | 538 |
|
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539 if (r == r->main) { |
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540 type = ngx_http_xslt_content_type(sheet[i - 1].stylesheet); |
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541 |
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542 } else { |
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543 type = NULL; |
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544 } |
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545 |
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546 encoding = ngx_http_xslt_encoding(sheet[i - 1].stylesheet); |
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547 doc_type = doc->type; |
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548 |
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549 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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550 "xslt filter type: %d t:%s e:%s", |
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551 doc_type, type ? type : (u_char *) "(null)", |
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552 encoding ? encoding : (u_char *) "(null)"); |
| 2139 | 553 |
| 554 rc = xsltSaveResultToString(&buf, &len, doc, sheet[i - 1].stylesheet); | |
| 555 | |
| 556 xmlFreeDoc(doc); | |
| 557 | |
| 558 if (rc != 0) { | |
| 559 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 560 "xsltSaveResultToString() failed"); | |
| 561 return NULL; | |
| 562 } | |
| 563 | |
| 564 if (len == 0) { | |
| 565 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 566 "xsltSaveResultToString() returned zero-length result"); | |
| 567 return NULL; | |
| 568 } | |
| 569 | |
| 570 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 571 if (b == NULL) { | |
| 572 ngx_free(buf); | |
| 573 return NULL; | |
| 574 } | |
| 575 | |
| 576 b->pos = buf; | |
| 577 b->last = buf + len; | |
| 578 b->memory = 1; | |
| 579 | |
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580 if (encoding) { |
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581 r->headers_out.charset.len = ngx_strlen(encoding); |
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582 r->headers_out.charset.data = encoding; |
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583 } |
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584 |
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585 if (r != r->main) { |
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586 return b; |
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587 } |
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588 |
|
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589 b->last_buf = 1; |
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590 |
|
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591 if (type) { |
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592 len = ngx_strlen(type); |
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593 |
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594 r->headers_out.content_type_len = len; |
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595 r->headers_out.content_type.len = len; |
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596 r->headers_out.content_type.data = type; |
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597 |
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598 } else if (doc_type == XML_HTML_DOCUMENT_NODE) { |
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599 |
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600 r->headers_out.content_type_len = sizeof("text/html") - 1; |
|
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601 ngx_str_set(&r->headers_out.content_type, "text/html"); |
|
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602 } |
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603 |
|
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604 r->headers_out.content_type_lowcase = NULL; |
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605 |
| 2139 | 606 return b; |
| 607 } | |
| 608 | |
| 609 | |
| 610 static ngx_int_t | |
| 611 ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
|
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612 ngx_array_t *params, ngx_uint_t final) |
| 2139 | 613 { |
|
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614 u_char *p, *last, *value, *dst, *src, **s; |
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615 size_t len; |
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616 ngx_uint_t i; |
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617 ngx_str_t string; |
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618 ngx_http_xslt_param_t *param; |
| 2139 | 619 |
| 620 param = params->elts; | |
| 621 | |
| 622 for (i = 0; i < params->nelts; i++) { | |
| 623 | |
|
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624 if (ngx_http_complex_value(r, ¶m[i].value, &string) != NGX_OK) { |
| 2139 | 625 return NGX_ERROR; |
| 626 } | |
| 627 | |
| 628 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 629 "xslt filter param: \"%s\"", string.data); | |
| 630 | |
|
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631 if (param[i].name) { |
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|
632 |
|
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633 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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634 "xslt filter param name: \"%s\"", param[i].name); |
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635 |
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636 if (param[i].quote) { |
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637 if (xsltQuoteOneUserParam(ctx->transform, param[i].name, |
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638 string.data) |
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639 != 0) |
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640 { |
|
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641 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
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642 "xsltQuoteOneUserParam(\"%s\", \"%s\") failed", |
|
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643 param[i].name, string.data); |
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644 return NGX_ERROR; |
|
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645 } |
|
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|
646 |
|
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647 continue; |
|
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648 } |
|
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649 |
|
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650 s = ngx_array_push(&ctx->params); |
|
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651 if (s == NULL) { |
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652 return NGX_ERROR; |
|
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653 } |
|
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|
654 |
|
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655 *s = param[i].name; |
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656 |
|
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657 s = ngx_array_push(&ctx->params); |
|
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658 if (s == NULL) { |
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659 return NGX_ERROR; |
|
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660 } |
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|
661 |
|
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662 *s = string.data; |
|
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663 |
|
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664 continue; |
|
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665 } |
|
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|
666 |
|
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|
667 /* |
|
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668 * parse param1=value1:param2=value2 syntax as used by parameters |
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|
669 * specified in xslt_stylesheet directives |
|
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670 */ |
|
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|
671 |
| 2139 | 672 p = string.data; |
|
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|
673 last = string.data + string.len; |
| 2139 | 674 |
| 675 while (p && *p) { | |
| 676 | |
| 677 value = p; | |
| 678 p = (u_char *) ngx_strchr(p, '='); | |
| 679 if (p == NULL) { | |
| 680 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 681 "invalid libxslt parameter \"%s\"", value); | |
| 682 return NGX_ERROR; | |
| 683 } | |
| 684 *p++ = '\0'; | |
| 685 | |
| 686 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 687 "xslt filter param name: \"%s\"", value); | |
| 688 | |
| 689 s = ngx_array_push(&ctx->params); | |
| 690 if (s == NULL) { | |
| 691 return NGX_ERROR; | |
| 692 } | |
| 693 | |
| 694 *s = value; | |
| 695 | |
| 696 value = p; | |
| 697 p = (u_char *) ngx_strchr(p, ':'); | |
| 698 | |
| 699 if (p) { | |
| 700 len = p - value; | |
| 701 *p++ = '\0'; | |
| 702 | |
| 703 } else { | |
| 704 len = last - value; | |
| 705 } | |
| 706 | |
| 707 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 708 "xslt filter param value: \"%s\"", value); | |
| 709 | |
| 710 dst = value; | |
| 711 src = value; | |
| 712 | |
| 713 ngx_unescape_uri(&dst, &src, len, 0); | |
| 714 | |
| 715 *dst = '\0'; | |
| 716 | |
| 717 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 718 "xslt filter param unescaped: \"%s\"", value); | |
| 719 | |
| 720 s = ngx_array_push(&ctx->params); | |
| 721 if (s == NULL) { | |
| 722 return NGX_ERROR; | |
| 723 } | |
| 724 | |
| 725 *s = value; | |
| 726 } | |
| 727 } | |
| 728 | |
|
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|
729 if (final) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
730 s = ngx_array_push(&ctx->params); |
|
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changeset
|
731 if (s == NULL) { |
|
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|
732 return NGX_ERROR; |
|
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|
733 } |
|
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|
734 |
|
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|
735 *s = NULL; |
| 2139 | 736 } |
| 737 | |
| 738 return NGX_OK; | |
| 739 } | |
| 740 | |
| 741 | |
|
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742 static u_char * |
|
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743 ngx_http_xslt_content_type(xsltStylesheetPtr s) |
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744 { |
|
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745 u_char *type; |
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746 |
|
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747 if (s->mediaType) { |
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748 return s->mediaType; |
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749 } |
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750 |
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751 for (s = s->imports; s; s = s->next) { |
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752 |
|
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753 type = ngx_http_xslt_content_type(s); |
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754 |
|
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755 if (type) { |
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756 return type; |
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757 } |
|
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|
758 } |
|
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|
759 |
|
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|
760 return NULL; |
|
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|
761 } |
|
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|
762 |
|
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|
763 |
|
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|
764 static u_char * |
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765 ngx_http_xslt_encoding(xsltStylesheetPtr s) |
|
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766 { |
|
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767 u_char *encoding; |
|
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|
768 |
|
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|
769 if (s->encoding) { |
|
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|
770 return s->encoding; |
|
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771 } |
|
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|
772 |
|
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|
773 for (s = s->imports; s; s = s->next) { |
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|
774 |
|
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|
775 encoding = ngx_http_xslt_encoding(s); |
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776 |
|
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|
777 if (encoding) { |
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778 return encoding; |
|
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|
779 } |
|
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|
780 } |
|
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|
781 |
|
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|
782 return NULL; |
|
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|
783 } |
|
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|
784 |
|
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|
785 |
| 2139 | 786 static void |
| 787 ngx_http_xslt_cleanup(void *data) | |
| 788 { | |
| 789 ngx_free(data); | |
| 790 } | |
| 791 | |
| 792 | |
| 793 static char * | |
| 794 ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 795 { | |
|
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796 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 797 |
|
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|
798 ngx_str_t *value; |
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|
799 ngx_uint_t i; |
|
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|
800 ngx_pool_cleanup_t *cln; |
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801 ngx_http_xslt_file_t *file; |
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|
802 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 803 |
| 804 if (xlcf->dtd) { | |
| 805 return "is duplicate"; | |
| 806 } | |
| 807 | |
| 808 value = cf->args->elts; | |
| 809 | |
|
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810 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
|
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811 |
|
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812 file = xmcf->dtd_files.elts; |
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|
813 for (i = 0; i < xmcf->dtd_files.nelts; i++) { |
|
4646
959371df1806
Fixed the reuse of parsed DTDs and XSLTs.
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4560
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changeset
|
814 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
|
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815 xlcf->dtd = file[i].data; |
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816 return NGX_CONF_OK; |
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817 } |
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818 } |
|
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|
819 |
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|
820 cln = ngx_pool_cleanup_add(cf->pool, 0); |
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821 if (cln == NULL) { |
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822 return NGX_CONF_ERROR; |
|
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823 } |
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|
824 |
| 2139 | 825 xlcf->dtd = xmlParseDTD(NULL, (xmlChar *) value[1].data); |
| 826 | |
| 827 if (xlcf->dtd == NULL) { | |
| 828 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, "xmlParseDTD() failed"); | |
| 829 return NGX_CONF_ERROR; | |
| 830 } | |
| 831 | |
|
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|
832 cln->handler = ngx_http_xslt_cleanup_dtd; |
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833 cln->data = xlcf->dtd; |
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834 |
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|
835 file = ngx_array_push(&xmcf->dtd_files); |
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836 if (file == NULL) { |
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837 return NGX_CONF_ERROR; |
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838 } |
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|
839 |
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|
840 file->name = value[1].data; |
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841 file->data = xlcf->dtd; |
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|
842 |
| 2139 | 843 return NGX_CONF_OK; |
| 844 } | |
| 845 | |
| 846 | |
| 847 | |
| 848 static char * | |
| 849 ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 850 { | |
|
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|
851 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 852 |
|
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|
853 ngx_str_t *value; |
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|
854 ngx_uint_t i, n; |
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|
855 ngx_pool_cleanup_t *cln; |
|
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856 ngx_http_xslt_file_t *file; |
|
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|
857 ngx_http_xslt_sheet_t *sheet; |
|
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Added xslt_param and xslt_string_param directives.
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|
858 ngx_http_xslt_param_t *param; |
|
2588
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use complex values in add_header, auth_basic_user_file,
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|
859 ngx_http_compile_complex_value_t ccv; |
|
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|
860 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 861 |
| 862 value = cf->args->elts; | |
| 863 | |
| 864 if (xlcf->sheets.elts == NULL) { | |
| 865 if (ngx_array_init(&xlcf->sheets, cf->pool, 1, | |
| 866 sizeof(ngx_http_xslt_sheet_t)) | |
| 867 != NGX_OK) | |
| 868 { | |
| 869 return NGX_CONF_ERROR; | |
| 870 } | |
| 871 } | |
| 872 | |
| 873 sheet = ngx_array_push(&xlcf->sheets); | |
| 874 if (sheet == NULL) { | |
| 875 return NGX_CONF_ERROR; | |
| 876 } | |
| 877 | |
| 878 ngx_memzero(sheet, sizeof(ngx_http_xslt_sheet_t)); | |
| 879 | |
| 880 if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) { | |
| 881 return NGX_CONF_ERROR; | |
| 882 } | |
| 883 | |
|
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884 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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885 |
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|
886 file = xmcf->sheet_files.elts; |
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|
887 for (i = 0; i < xmcf->sheet_files.nelts; i++) { |
|
4646
959371df1806
Fixed the reuse of parsed DTDs and XSLTs.
Ruslan Ermilov <ru@nginx.com>
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4560
diff
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|
888 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
|
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889 sheet->stylesheet = file[i].data; |
|
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890 goto found; |
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891 } |
|
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892 } |
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|
893 |
| 2139 | 894 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 895 if (cln == NULL) { | |
| 896 return NGX_CONF_ERROR; | |
| 897 } | |
| 898 | |
| 899 sheet->stylesheet = xsltParseStylesheetFile(value[1].data); | |
| 900 if (sheet->stylesheet == NULL) { | |
| 901 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
| 902 "xsltParseStylesheetFile(\"%s\") failed", | |
| 903 value[1].data); | |
| 904 return NGX_CONF_ERROR; | |
| 905 } | |
| 906 | |
| 907 cln->handler = ngx_http_xslt_cleanup_stylesheet; | |
| 908 cln->data = sheet->stylesheet; | |
| 909 | |
|
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910 file = ngx_array_push(&xmcf->sheet_files); |
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911 if (file == NULL) { |
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912 return NGX_CONF_ERROR; |
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913 } |
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914 |
|
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915 file->name = value[1].data; |
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916 file->data = sheet->stylesheet; |
|
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917 |
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|
918 found: |
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919 |
| 2139 | 920 n = cf->args->nelts; |
| 921 | |
| 922 if (n == 2) { | |
| 923 return NGX_CONF_OK; | |
| 924 } | |
| 925 | |
| 926 if (ngx_array_init(&sheet->params, cf->pool, n - 2, | |
|
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Added xslt_param and xslt_string_param directives.
Maxim Dounin <mdounin@mdounin.ru>
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|
927 sizeof(ngx_http_xslt_param_t)) |
| 2139 | 928 != NGX_OK) |
| 929 { | |
| 930 return NGX_CONF_ERROR; | |
| 931 } | |
| 932 | |
| 933 for (i = 2; i < n; i++) { | |
| 934 | |
| 935 param = ngx_array_push(&sheet->params); | |
| 936 if (param == NULL) { | |
| 937 return NGX_CONF_ERROR; | |
| 938 } | |
| 939 | |
|
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Added xslt_param and xslt_string_param directives.
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|
940 ngx_memzero(param, sizeof(ngx_http_xslt_param_t)); |
|
2588
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|
941 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| 2139 | 942 |
|
2588
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|
943 ccv.cf = cf; |
|
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944 ccv.value = &value[i]; |
|
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|
945 ccv.complex_value = ¶m->value; |
|
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|
946 ccv.zero = 1; |
| 2139 | 947 |
|
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|
948 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| 2139 | 949 return NGX_CONF_ERROR; |
| 950 } | |
| 951 } | |
| 952 | |
| 953 return NGX_CONF_OK; | |
| 954 } | |
| 955 | |
| 956 | |
|
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|
957 static char * |
|
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Added xslt_param and xslt_string_param directives.
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|
958 ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
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|
959 { |
|
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|
960 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
|
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|
961 |
|
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|
962 ngx_http_xslt_param_t *param; |
|
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|
963 ngx_http_compile_complex_value_t ccv; |
|
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|
964 ngx_str_t *value; |
|
212a0251951b
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|
965 |
|
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|
966 value = cf->args->elts; |
|
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|
967 |
|
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|
968 if (xlcf->params == NULL) { |
|
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|
969 xlcf->params = ngx_array_create(cf->pool, 2, |
|
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|
970 sizeof(ngx_http_xslt_param_t)); |
|
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|
971 if (xlcf->params == NULL) { |
|
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|
972 return NGX_CONF_ERROR; |
|
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|
973 } |
|
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|
974 } |
|
212a0251951b
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|
975 |
|
212a0251951b
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|
976 param = ngx_array_push(xlcf->params); |
|
212a0251951b
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|
977 if (param == NULL) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
Maxim Dounin <mdounin@mdounin.ru>
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|
978 return NGX_CONF_ERROR; |
|
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Added xslt_param and xslt_string_param directives.
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changeset
|
979 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
980 |
|
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Added xslt_param and xslt_string_param directives.
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|
981 param->name = value[1].data; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
Maxim Dounin <mdounin@mdounin.ru>
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changeset
|
982 param->quote = (cmd->post == NULL) ? 0 : 1; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
983 |
|
212a0251951b
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changeset
|
984 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
985 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
986 ccv.cf = cf; |
|
212a0251951b
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|
987 ccv.value = &value[2]; |
|
212a0251951b
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|
988 ccv.complex_value = ¶m->value; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
989 ccv.zero = 1; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
990 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
991 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
992 return NGX_CONF_ERROR; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
993 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
994 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
995 return NGX_CONF_OK; |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
996 } |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
997 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
998 |
| 2139 | 999 static void |
|
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|
1000 ngx_http_xslt_cleanup_dtd(void *data) |
|
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|
1001 { |
|
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|
1002 xmlFreeDtd(data); |
|
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|
1003 } |
|
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|
1004 |
|
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|
1005 |
|
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changeset
|
1006 static void |
| 2139 | 1007 ngx_http_xslt_cleanup_stylesheet(void *data) |
| 1008 { | |
|
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|
1009 xsltFreeStylesheet(data); |
| 2139 | 1010 } |
| 1011 | |
| 1012 | |
|
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|
1013 static void * |
|
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|
1014 ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf) |
|
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|
1015 { |
|
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|
1016 ngx_http_xslt_filter_main_conf_t *conf; |
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|
1017 |
|
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|
1018 conf = ngx_palloc(cf->pool, sizeof(ngx_http_xslt_filter_main_conf_t)); |
|
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|
1019 if (conf == NULL) { |
|
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
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2899
diff
changeset
|
1020 return NULL; |
|
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|
1021 } |
|
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|
1022 |
|
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|
1023 if (ngx_array_init(&conf->dtd_files, cf->pool, 1, |
|
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|
1024 sizeof(ngx_http_xslt_file_t)) |
|
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|
1025 != NGX_OK) |
|
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|
1026 { |
|
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|
1027 return NULL; |
|
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|
1028 } |
|
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changeset
|
1029 |
|
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|
1030 if (ngx_array_init(&conf->sheet_files, cf->pool, 1, |
|
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|
1031 sizeof(ngx_http_xslt_file_t)) |
|
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|
1032 != NGX_OK) |
|
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|
1033 { |
|
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|
1034 return NULL; |
|
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|
1035 } |
|
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1036 |
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1037 return conf; |
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1038 } |
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1039 |
| 2139 | 1040 |
| 1041 static void * | |
| 1042 ngx_http_xslt_filter_create_conf(ngx_conf_t *cf) | |
| 1043 { | |
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1044 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 1045 |
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1046 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_xslt_filter_loc_conf_t)); |
| 2139 | 1047 if (conf == NULL) { |
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1048 return NULL; |
| 2139 | 1049 } |
| 1050 | |
| 1051 /* | |
| 1052 * set by ngx_pcalloc(): | |
| 1053 * | |
| 2148 | 1054 * conf->dtd = NULL; |
| 1055 * conf->sheets = { NULL }; | |
| 1056 * conf->types = { NULL }; | |
| 1057 * conf->types_keys = NULL; | |
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1058 * conf->params = NULL; |
| 2139 | 1059 */ |
| 1060 | |
| 1061 return conf; | |
| 1062 } | |
| 1063 | |
| 1064 | |
| 1065 static char * | |
| 1066 ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1067 { | |
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1068 ngx_http_xslt_filter_loc_conf_t *prev = parent; |
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1069 ngx_http_xslt_filter_loc_conf_t *conf = child; |
| 2139 | 1070 |
| 1071 if (conf->dtd == NULL) { | |
| 1072 conf->dtd = prev->dtd; | |
| 1073 } | |
| 1074 | |
| 1075 if (conf->sheets.nelts == 0) { | |
| 1076 conf->sheets = prev->sheets; | |
| 1077 } | |
| 1078 | |
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1079 if (conf->params == NULL) { |
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1080 conf->params = prev->params; |
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1081 } |
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1082 |
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1083 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types, |
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1084 &prev->types_keys, &prev->types, |
| 2148 | 1085 ngx_http_xslt_default_types) |
| 2139 | 1086 != NGX_OK) |
| 1087 { | |
| 1088 return NGX_CONF_ERROR; | |
| 1089 } | |
| 1090 | |
| 1091 return NGX_CONF_OK; | |
| 1092 } | |
| 1093 | |
| 1094 | |
| 1095 static ngx_int_t | |
| 1096 ngx_http_xslt_filter_init(ngx_conf_t *cf) | |
| 1097 { | |
| 1098 xmlInitParser(); | |
| 1099 | |
| 2299 | 1100 #if (NGX_HAVE_EXSLT) |
| 1101 exsltRegisterAll(); | |
| 1102 #endif | |
| 1103 | |
| 2139 | 1104 ngx_http_next_header_filter = ngx_http_top_header_filter; |
| 1105 ngx_http_top_header_filter = ngx_http_xslt_header_filter; | |
| 1106 | |
| 1107 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
| 1108 ngx_http_top_body_filter = ngx_http_xslt_body_filter; | |
| 1109 | |
| 1110 return NGX_OK; | |
| 1111 } | |
| 1112 | |
| 1113 | |
| 1114 static void | |
| 1115 ngx_http_xslt_filter_exit(ngx_cycle_t *cycle) | |
| 1116 { | |
| 1117 xsltCleanupGlobals(); | |
| 1118 xmlCleanupParser(); | |
| 1119 } |