Mercurial > hg > nginx
annotate src/http/modules/ngx_http_xslt_filter_module.c @ 6059:c81d79a7befd
SPDY: always push pending data.
This helps to avoid suboptimal behavior when a client waits for a control
frame or more data to increase window size, but the frames have been delayed
in the socket buffer.
The delays can be caused by bad interaction between Nagle's algorithm on
nginx side and delayed ACK on the client side or by TCP_CORK/TCP_NOPUSH
if SPDY was working without SSL and sendfile() was used.
The pushing code is now very similar to ngx_http_set_keepalive().
| author | Valentin Bartenev <vbart@nginx.com> |
|---|---|
| date | Mon, 23 Mar 2015 21:04:13 +0300 |
| parents | e491b26fa5a1 |
| children | a72886067bbb |
| 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 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); |
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341 |
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342 if (!conf->last_modified) { |
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343 ngx_http_clear_last_modified(r); |
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344 ngx_http_clear_etag(r); |
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345 |
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346 } else { |
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347 ngx_http_weak_etag(r); |
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348 } |
| 2139 | 349 } |
| 350 | |
| 351 rc = ngx_http_next_header_filter(r); | |
| 352 | |
| 353 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
| 354 ngx_free(b->pos); | |
| 355 return rc; | |
| 356 } | |
| 357 | |
| 358 cln->handler = ngx_http_xslt_cleanup; | |
| 359 cln->data = b->pos; | |
| 360 | |
| 361 out.buf = b; | |
| 362 out.next = NULL; | |
| 363 | |
| 364 return ngx_http_next_body_filter(r, &out); | |
| 365 } | |
| 366 | |
| 367 | |
| 368 static ngx_int_t | |
| 369 ngx_http_xslt_add_chunk(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
| 370 ngx_buf_t *b) | |
| 371 { | |
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372 int err; |
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373 xmlParserCtxtPtr ctxt; |
| 2139 | 374 |
| 375 if (ctx->ctxt == NULL) { | |
| 376 | |
| 377 ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL); | |
| 378 if (ctxt == NULL) { | |
| 379 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 380 "xmlCreatePushParserCtxt() failed"); | |
| 381 return NGX_ERROR; | |
| 382 } | |
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383 xmlCtxtUseOptions(ctxt, XML_PARSE_NOENT|XML_PARSE_DTDLOAD |
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384 |XML_PARSE_NOWARNING); |
| 2139 | 385 |
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386 ctxt->sax->externalSubset = ngx_http_xslt_sax_external_subset; |
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387 ctxt->sax->setDocumentLocator = NULL; |
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388 ctxt->sax->error = ngx_http_xslt_sax_error; |
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389 ctxt->sax->fatalError = ngx_http_xslt_sax_error; |
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390 ctxt->sax->_private = ctx; |
| 2139 | 391 |
| 392 ctx->ctxt = ctxt; | |
| 393 ctx->request = r; | |
| 394 } | |
| 395 | |
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396 err = xmlParseChunk(ctx->ctxt, (char *) b->pos, (int) (b->last - b->pos), |
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397 (b->last_buf) || (b->last_in_chain)); |
| 2139 | 398 |
| 399 if (err == 0) { | |
| 400 b->pos = b->last; | |
| 401 return NGX_OK; | |
| 402 } | |
| 403 | |
| 404 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 405 "xmlParseChunk() failed, error:%d", err); | |
| 406 | |
| 407 return NGX_ERROR; | |
| 408 } | |
| 409 | |
| 410 | |
| 411 static void | |
| 412 ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
| 413 const xmlChar *externalId, const xmlChar *systemId) | |
| 414 { | |
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415 xmlParserCtxtPtr ctxt = data; |
| 2139 | 416 |
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417 xmlDocPtr doc; |
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418 xmlDtdPtr dtd; |
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419 ngx_http_request_t *r; |
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420 ngx_http_xslt_filter_ctx_t *ctx; |
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421 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 422 |
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423 ctx = ctxt->sax->_private; |
| 2139 | 424 r = ctx->request; |
| 425 | |
| 426 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 427 | |
| 428 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 429 "xslt filter extSubset: \"%s\" \"%s\" \"%s\"", | |
| 430 name ? name : (xmlChar *) "", | |
| 431 externalId ? externalId : (xmlChar *) "", | |
| 432 systemId ? systemId : (xmlChar *) ""); | |
| 433 | |
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434 doc = ctxt->myDoc; |
| 2139 | 435 |
| 436 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
| 437 | |
| 438 dtd = conf->dtd; | |
| 439 | |
| 440 #else | |
| 441 | |
| 442 dtd = xmlCopyDtd(conf->dtd); | |
| 443 if (dtd == NULL) { | |
| 444 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 445 "xmlCopyDtd() failed"); | |
| 446 return; | |
| 447 } | |
| 448 | |
| 449 if (doc->children == NULL) { | |
| 450 xmlAddChild((xmlNodePtr) doc, (xmlNodePtr) dtd); | |
| 451 | |
| 452 } else { | |
| 453 xmlAddPrevSibling(doc->children, (xmlNodePtr) dtd); | |
| 454 } | |
| 455 | |
| 456 #endif | |
| 457 | |
| 458 doc->extSubset = dtd; | |
| 459 } | |
| 460 | |
| 461 | |
| 462 static void ngx_cdecl | |
| 463 ngx_http_xslt_sax_error(void *data, const char *msg, ...) | |
| 464 { | |
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465 xmlParserCtxtPtr ctxt = data; |
| 2139 | 466 |
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467 size_t n; |
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468 va_list args; |
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469 ngx_http_xslt_filter_ctx_t *ctx; |
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470 u_char buf[NGX_MAX_ERROR_STR]; |
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471 |
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472 ctx = ctxt->sax->_private; |
| 2139 | 473 |
| 474 buf[0] = '\0'; | |
| 475 | |
| 476 va_start(args, msg); | |
| 477 n = (size_t) vsnprintf((char *) buf, NGX_MAX_ERROR_STR, msg, args); | |
| 478 va_end(args); | |
| 479 | |
| 480 while (--n && (buf[n] == CR || buf[n] == LF)) { /* void */ } | |
| 481 | |
| 482 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
| 2999 | 483 "libxml2 error: \"%*s\"", n + 1, buf); |
| 2139 | 484 } |
| 485 | |
| 486 | |
| 487 static ngx_buf_t * | |
| 488 ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
| 489 ngx_http_xslt_filter_ctx_t *ctx) | |
| 490 { | |
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491 int len, rc, doc_type; |
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492 u_char *type, *encoding; |
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493 ngx_buf_t *b; |
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494 ngx_uint_t i; |
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495 xmlChar *buf; |
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496 xmlDocPtr doc, res; |
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497 ngx_http_xslt_sheet_t *sheet; |
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498 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 499 |
| 500 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
| 501 sheet = conf->sheets.elts; | |
| 502 doc = ctx->doc; | |
| 503 | |
| 504 /* preallocate array for 4 params */ | |
| 505 | |
| 506 if (ngx_array_init(&ctx->params, r->pool, 4 * 2 + 1, sizeof(char *)) | |
| 507 != NGX_OK) | |
| 508 { | |
| 509 xmlFreeDoc(doc); | |
| 510 return NULL; | |
| 511 } | |
| 512 | |
| 513 for (i = 0; i < conf->sheets.nelts; i++) { | |
| 514 | |
|
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515 ctx->transform = xsltNewTransformContext(sheet[i].stylesheet, doc); |
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516 if (ctx->transform == NULL) { |
| 2139 | 517 xmlFreeDoc(doc); |
| 518 return NULL; | |
| 519 } | |
| 520 | |
|
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521 if (conf->params |
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522 && ngx_http_xslt_params(r, ctx, conf->params, 0) != NGX_OK) |
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523 { |
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524 xsltFreeTransformContext(ctx->transform); |
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525 xmlFreeDoc(doc); |
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526 return NULL; |
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527 } |
| 2139 | 528 |
|
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529 if (ngx_http_xslt_params(r, ctx, &sheet[i].params, 1) != NGX_OK) { |
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530 xsltFreeTransformContext(ctx->transform); |
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531 xmlFreeDoc(doc); |
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532 return NULL; |
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533 } |
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534 |
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535 res = xsltApplyStylesheetUser(sheet[i].stylesheet, doc, |
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536 ctx->params.elts, NULL, NULL, |
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537 ctx->transform); |
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538 |
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539 xsltFreeTransformContext(ctx->transform); |
| 2139 | 540 xmlFreeDoc(doc); |
| 541 | |
| 542 if (res == NULL) { | |
| 543 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 544 "xsltApplyStylesheet() failed"); | |
| 545 return NULL; | |
| 546 } | |
| 547 | |
| 548 doc = res; | |
| 549 | |
| 550 /* reset array elements */ | |
| 551 ctx->params.nelts = 0; | |
| 552 } | |
| 553 | |
|
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554 /* there must be at least one stylesheet */ |
| 2139 | 555 |
|
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556 if (r == r->main) { |
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557 type = ngx_http_xslt_content_type(sheet[i - 1].stylesheet); |
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558 |
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559 } else { |
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560 type = NULL; |
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561 } |
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562 |
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563 encoding = ngx_http_xslt_encoding(sheet[i - 1].stylesheet); |
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564 doc_type = doc->type; |
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565 |
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566 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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567 "xslt filter type: %d t:%s e:%s", |
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568 doc_type, type ? type : (u_char *) "(null)", |
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569 encoding ? encoding : (u_char *) "(null)"); |
| 2139 | 570 |
| 571 rc = xsltSaveResultToString(&buf, &len, doc, sheet[i - 1].stylesheet); | |
| 572 | |
| 573 xmlFreeDoc(doc); | |
| 574 | |
| 575 if (rc != 0) { | |
| 576 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 577 "xsltSaveResultToString() failed"); | |
| 578 return NULL; | |
| 579 } | |
| 580 | |
| 581 if (len == 0) { | |
| 582 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 583 "xsltSaveResultToString() returned zero-length result"); | |
| 584 return NULL; | |
| 585 } | |
| 586 | |
| 587 b = ngx_pcalloc(r->pool, sizeof(ngx_buf_t)); | |
| 588 if (b == NULL) { | |
| 589 ngx_free(buf); | |
| 590 return NULL; | |
| 591 } | |
| 592 | |
| 593 b->pos = buf; | |
| 594 b->last = buf + len; | |
| 595 b->memory = 1; | |
| 596 | |
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597 if (encoding) { |
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598 r->headers_out.charset.len = ngx_strlen(encoding); |
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599 r->headers_out.charset.data = encoding; |
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600 } |
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601 |
|
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602 if (r != r->main) { |
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603 return b; |
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604 } |
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|
605 |
|
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|
606 b->last_buf = 1; |
|
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|
607 |
|
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608 if (type) { |
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609 len = ngx_strlen(type); |
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610 |
|
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611 r->headers_out.content_type_len = len; |
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612 r->headers_out.content_type.len = len; |
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613 r->headers_out.content_type.data = type; |
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614 |
|
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615 } else if (doc_type == XML_HTML_DOCUMENT_NODE) { |
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616 |
|
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|
617 r->headers_out.content_type_len = sizeof("text/html") - 1; |
|
3516
dd1570b6f237
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|
618 ngx_str_set(&r->headers_out.content_type, "text/html"); |
|
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619 } |
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620 |
|
2882
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|
621 r->headers_out.content_type_lowcase = NULL; |
|
896db5a09bd2
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|
622 |
| 2139 | 623 return b; |
| 624 } | |
| 625 | |
| 626 | |
| 627 static ngx_int_t | |
| 628 ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
|
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|
629 ngx_array_t *params, ngx_uint_t final) |
| 2139 | 630 { |
|
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|
631 u_char *p, *last, *value, *dst, *src, **s; |
|
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|
632 size_t len; |
|
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|
633 ngx_uint_t i; |
|
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|
634 ngx_str_t string; |
|
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Added xslt_param and xslt_string_param directives.
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|
635 ngx_http_xslt_param_t *param; |
| 2139 | 636 |
| 637 param = params->elts; | |
| 638 | |
| 639 for (i = 0; i < params->nelts; i++) { | |
| 640 | |
|
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|
641 if (ngx_http_complex_value(r, ¶m[i].value, &string) != NGX_OK) { |
| 2139 | 642 return NGX_ERROR; |
| 643 } | |
| 644 | |
| 645 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 646 "xslt filter param: \"%s\"", string.data); | |
| 647 | |
|
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|
648 if (param[i].name) { |
|
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|
649 |
|
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|
650 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
|
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|
651 "xslt filter param name: \"%s\"", param[i].name); |
|
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|
652 |
|
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|
653 if (param[i].quote) { |
|
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654 if (xsltQuoteOneUserParam(ctx->transform, param[i].name, |
|
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655 string.data) |
|
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656 != 0) |
|
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657 { |
|
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|
658 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
|
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659 "xsltQuoteOneUserParam(\"%s\", \"%s\") failed", |
|
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|
660 param[i].name, string.data); |
|
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661 return NGX_ERROR; |
|
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662 } |
|
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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 s = ngx_array_push(&ctx->params); |
|
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|
668 if (s == NULL) { |
|
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|
669 return NGX_ERROR; |
|
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670 } |
|
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|
671 |
|
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672 *s = param[i].name; |
|
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Added xslt_param and xslt_string_param directives.
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|
673 |
|
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Added xslt_param and xslt_string_param directives.
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|
674 s = ngx_array_push(&ctx->params); |
|
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Added xslt_param and xslt_string_param directives.
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|
675 if (s == NULL) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
676 return NGX_ERROR; |
|
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Added xslt_param and xslt_string_param directives.
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|
677 } |
|
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Added xslt_param and xslt_string_param directives.
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|
678 |
|
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Added xslt_param and xslt_string_param directives.
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|
679 *s = string.data; |
|
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Added xslt_param and xslt_string_param directives.
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|
680 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
681 continue; |
|
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Added xslt_param and xslt_string_param directives.
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|
682 } |
|
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Added xslt_param and xslt_string_param directives.
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|
683 |
|
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Added xslt_param and xslt_string_param directives.
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|
684 /* |
|
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Added xslt_param and xslt_string_param directives.
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|
685 * parse param1=value1:param2=value2 syntax as used by parameters |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
686 * specified in xslt_stylesheet directives |
|
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Added xslt_param and xslt_string_param directives.
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|
687 */ |
|
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changeset
|
688 |
| 2139 | 689 p = string.data; |
|
4553
3dd8a403faa1
Fixed off-by-one in xslt parameter parsing.
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changeset
|
690 last = string.data + string.len; |
| 2139 | 691 |
| 692 while (p && *p) { | |
| 693 | |
| 694 value = p; | |
| 695 p = (u_char *) ngx_strchr(p, '='); | |
| 696 if (p == NULL) { | |
| 697 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 698 "invalid libxslt parameter \"%s\"", value); | |
| 699 return NGX_ERROR; | |
| 700 } | |
| 701 *p++ = '\0'; | |
| 702 | |
| 703 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 704 "xslt filter param name: \"%s\"", value); | |
| 705 | |
| 706 s = ngx_array_push(&ctx->params); | |
| 707 if (s == NULL) { | |
| 708 return NGX_ERROR; | |
| 709 } | |
| 710 | |
| 711 *s = value; | |
| 712 | |
| 713 value = p; | |
| 714 p = (u_char *) ngx_strchr(p, ':'); | |
| 715 | |
| 716 if (p) { | |
| 717 len = p - value; | |
| 718 *p++ = '\0'; | |
| 719 | |
| 720 } else { | |
| 721 len = last - value; | |
| 722 } | |
| 723 | |
| 724 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 725 "xslt filter param value: \"%s\"", value); | |
| 726 | |
| 727 dst = value; | |
| 728 src = value; | |
| 729 | |
| 730 ngx_unescape_uri(&dst, &src, len, 0); | |
| 731 | |
| 732 *dst = '\0'; | |
| 733 | |
| 734 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 735 "xslt filter param unescaped: \"%s\"", value); | |
| 736 | |
| 737 s = ngx_array_push(&ctx->params); | |
| 738 if (s == NULL) { | |
| 739 return NGX_ERROR; | |
| 740 } | |
| 741 | |
| 742 *s = value; | |
| 743 } | |
| 744 } | |
| 745 | |
|
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|
746 if (final) { |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
747 s = ngx_array_push(&ctx->params); |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
748 if (s == NULL) { |
|
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|
749 return NGX_ERROR; |
|
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Added xslt_param and xslt_string_param directives.
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|
750 } |
|
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Added xslt_param and xslt_string_param directives.
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|
751 |
|
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
752 *s = NULL; |
| 2139 | 753 } |
| 754 | |
| 755 return NGX_OK; | |
| 756 } | |
| 757 | |
| 758 | |
|
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759 static u_char * |
|
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|
760 ngx_http_xslt_content_type(xsltStylesheetPtr s) |
|
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|
761 { |
|
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|
762 u_char *type; |
|
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|
763 |
|
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|
764 if (s->mediaType) { |
|
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765 return s->mediaType; |
|
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|
766 } |
|
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|
767 |
|
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|
768 for (s = s->imports; s; s = s->next) { |
|
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|
769 |
|
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|
770 type = ngx_http_xslt_content_type(s); |
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|
771 |
|
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|
772 if (type) { |
|
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773 return type; |
|
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|
774 } |
|
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|
775 } |
|
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|
776 |
|
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|
777 return NULL; |
|
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|
778 } |
|
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|
779 |
|
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|
780 |
|
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|
781 static u_char * |
|
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|
782 ngx_http_xslt_encoding(xsltStylesheetPtr s) |
|
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|
783 { |
|
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|
784 u_char *encoding; |
|
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|
785 |
|
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|
786 if (s->encoding) { |
|
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changeset
|
787 return s->encoding; |
|
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|
788 } |
|
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|
789 |
|
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|
790 for (s = s->imports; s; s = s->next) { |
|
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|
791 |
|
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|
792 encoding = ngx_http_xslt_encoding(s); |
|
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|
793 |
|
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|
794 if (encoding) { |
|
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|
795 return encoding; |
|
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|
796 } |
|
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|
797 } |
|
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changeset
|
798 |
|
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|
799 return NULL; |
|
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|
800 } |
|
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changeset
|
801 |
|
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changeset
|
802 |
| 2139 | 803 static void |
| 804 ngx_http_xslt_cleanup(void *data) | |
| 805 { | |
| 806 ngx_free(data); | |
| 807 } | |
| 808 | |
| 809 | |
| 810 static char * | |
| 811 ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 812 { | |
|
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|
813 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 814 |
|
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|
815 ngx_str_t *value; |
|
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|
816 ngx_uint_t i; |
|
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reuse compiled DTD hash in different locations, add DTD cleanup
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|
817 ngx_pool_cleanup_t *cln; |
|
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|
818 ngx_http_xslt_file_t *file; |
|
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|
819 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 820 |
| 821 if (xlcf->dtd) { | |
| 822 return "is duplicate"; | |
| 823 } | |
| 824 | |
| 825 value = cf->args->elts; | |
| 826 | |
|
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Igor Sysoev <igor@sysoev.ru>
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|
827 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
|
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|
828 |
|
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|
829 file = xmcf->dtd_files.elts; |
|
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|
830 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
|
831 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
|
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|
832 xlcf->dtd = file[i].data; |
|
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|
833 return NGX_CONF_OK; |
|
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|
834 } |
|
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|
835 } |
|
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|
836 |
|
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|
837 cln = ngx_pool_cleanup_add(cf->pool, 0); |
|
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|
838 if (cln == NULL) { |
|
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|
839 return NGX_CONF_ERROR; |
|
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|
840 } |
|
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|
841 |
| 2139 | 842 xlcf->dtd = xmlParseDTD(NULL, (xmlChar *) value[1].data); |
| 843 | |
| 844 if (xlcf->dtd == NULL) { | |
| 845 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, "xmlParseDTD() failed"); | |
| 846 return NGX_CONF_ERROR; | |
| 847 } | |
| 848 | |
|
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|
849 cln->handler = ngx_http_xslt_cleanup_dtd; |
|
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|
850 cln->data = xlcf->dtd; |
|
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|
851 |
|
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|
852 file = ngx_array_push(&xmcf->dtd_files); |
|
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|
853 if (file == NULL) { |
|
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|
854 return NGX_CONF_ERROR; |
|
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|
855 } |
|
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|
856 |
|
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857 file->name = value[1].data; |
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858 file->data = xlcf->dtd; |
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859 |
| 2139 | 860 return NGX_CONF_OK; |
| 861 } | |
| 862 | |
| 863 | |
| 864 | |
| 865 static char * | |
| 866 ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 867 { | |
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868 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
| 2139 | 869 |
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870 ngx_str_t *value; |
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871 ngx_uint_t i, n; |
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872 ngx_pool_cleanup_t *cln; |
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873 ngx_http_xslt_file_t *file; |
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874 ngx_http_xslt_sheet_t *sheet; |
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875 ngx_http_xslt_param_t *param; |
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876 ngx_http_compile_complex_value_t ccv; |
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877 ngx_http_xslt_filter_main_conf_t *xmcf; |
| 2139 | 878 |
| 879 value = cf->args->elts; | |
| 880 | |
| 881 if (xlcf->sheets.elts == NULL) { | |
| 882 if (ngx_array_init(&xlcf->sheets, cf->pool, 1, | |
| 883 sizeof(ngx_http_xslt_sheet_t)) | |
| 884 != NGX_OK) | |
| 885 { | |
| 886 return NGX_CONF_ERROR; | |
| 887 } | |
| 888 } | |
| 889 | |
| 890 sheet = ngx_array_push(&xlcf->sheets); | |
| 891 if (sheet == NULL) { | |
| 892 return NGX_CONF_ERROR; | |
| 893 } | |
| 894 | |
| 895 ngx_memzero(sheet, sizeof(ngx_http_xslt_sheet_t)); | |
| 896 | |
|
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897 if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) { |
| 2139 | 898 return NGX_CONF_ERROR; |
| 899 } | |
| 900 | |
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901 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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902 |
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903 file = xmcf->sheet_files.elts; |
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904 for (i = 0; i < xmcf->sheet_files.nelts; i++) { |
|
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905 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
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906 sheet->stylesheet = file[i].data; |
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907 goto found; |
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908 } |
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909 } |
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910 |
| 2139 | 911 cln = ngx_pool_cleanup_add(cf->pool, 0); |
| 912 if (cln == NULL) { | |
| 913 return NGX_CONF_ERROR; | |
| 914 } | |
| 915 | |
| 916 sheet->stylesheet = xsltParseStylesheetFile(value[1].data); | |
| 917 if (sheet->stylesheet == NULL) { | |
| 918 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
| 919 "xsltParseStylesheetFile(\"%s\") failed", | |
| 920 value[1].data); | |
| 921 return NGX_CONF_ERROR; | |
| 922 } | |
| 923 | |
| 924 cln->handler = ngx_http_xslt_cleanup_stylesheet; | |
| 925 cln->data = sheet->stylesheet; | |
| 926 | |
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927 file = ngx_array_push(&xmcf->sheet_files); |
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928 if (file == NULL) { |
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929 return NGX_CONF_ERROR; |
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930 } |
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931 |
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932 file->name = value[1].data; |
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933 file->data = sheet->stylesheet; |
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934 |
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935 found: |
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936 |
| 2139 | 937 n = cf->args->nelts; |
| 938 | |
| 939 if (n == 2) { | |
| 940 return NGX_CONF_OK; | |
| 941 } | |
| 942 | |
| 943 if (ngx_array_init(&sheet->params, cf->pool, n - 2, | |
|
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944 sizeof(ngx_http_xslt_param_t)) |
| 2139 | 945 != NGX_OK) |
| 946 { | |
| 947 return NGX_CONF_ERROR; | |
| 948 } | |
| 949 | |
| 950 for (i = 2; i < n; i++) { | |
| 951 | |
| 952 param = ngx_array_push(&sheet->params); | |
| 953 if (param == NULL) { | |
| 954 return NGX_CONF_ERROR; | |
| 955 } | |
| 956 | |
|
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957 ngx_memzero(param, sizeof(ngx_http_xslt_param_t)); |
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958 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
| 2139 | 959 |
|
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960 ccv.cf = cf; |
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961 ccv.value = &value[i]; |
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962 ccv.complex_value = ¶m->value; |
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963 ccv.zero = 1; |
| 2139 | 964 |
|
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965 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
| 2139 | 966 return NGX_CONF_ERROR; |
| 967 } | |
| 968 } | |
| 969 | |
| 970 return NGX_CONF_OK; | |
| 971 } | |
| 972 | |
| 973 | |
|
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|
974 static char * |
|
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975 ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
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|
976 { |
|
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977 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
|
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|
978 |
|
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|
979 ngx_http_xslt_param_t *param; |
|
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980 ngx_http_compile_complex_value_t ccv; |
|
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|
981 ngx_str_t *value; |
|
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|
982 |
|
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|
983 value = cf->args->elts; |
|
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|
984 |
|
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|
985 if (xlcf->params == NULL) { |
|
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|
986 xlcf->params = ngx_array_create(cf->pool, 2, |
|
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|
987 sizeof(ngx_http_xslt_param_t)); |
|
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|
988 if (xlcf->params == NULL) { |
|
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989 return NGX_CONF_ERROR; |
|
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990 } |
|
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|
991 } |
|
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|
992 |
|
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|
993 param = ngx_array_push(xlcf->params); |
|
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994 if (param == NULL) { |
|
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995 return NGX_CONF_ERROR; |
|
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|
996 } |
|
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|
997 |
|
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|
998 param->name = value[1].data; |
|
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|
999 param->quote = (cmd->post == NULL) ? 0 : 1; |
|
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|
1000 |
|
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|
1001 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
|
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|
1002 |
|
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|
1003 ccv.cf = cf; |
|
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1004 ccv.value = &value[2]; |
|
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|
1005 ccv.complex_value = ¶m->value; |
|
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1006 ccv.zero = 1; |
|
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|
1007 |
|
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|
1008 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
|
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|
1009 return NGX_CONF_ERROR; |
|
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1010 } |
|
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|
1011 |
|
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|
1012 return NGX_CONF_OK; |
|
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|
1013 } |
|
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|
1014 |
|
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|
1015 |
| 2139 | 1016 static void |
|
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1017 ngx_http_xslt_cleanup_dtd(void *data) |
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1018 { |
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1019 xmlFreeDtd(data); |
|
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1020 } |
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1021 |
|
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|
1022 |
|
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|
1023 static void |
| 2139 | 1024 ngx_http_xslt_cleanup_stylesheet(void *data) |
| 1025 { | |
|
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1026 xsltFreeStylesheet(data); |
| 2139 | 1027 } |
| 1028 | |
| 1029 | |
|
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1030 static void * |
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1031 ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf) |
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1032 { |
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1033 ngx_http_xslt_filter_main_conf_t *conf; |
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1034 |
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1035 conf = ngx_palloc(cf->pool, sizeof(ngx_http_xslt_filter_main_conf_t)); |
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1036 if (conf == NULL) { |
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1037 return NULL; |
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1038 } |
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1039 |
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1040 if (ngx_array_init(&conf->dtd_files, cf->pool, 1, |
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1041 sizeof(ngx_http_xslt_file_t)) |
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1042 != NGX_OK) |
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1043 { |
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1044 return NULL; |
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1045 } |
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1046 |
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1047 if (ngx_array_init(&conf->sheet_files, cf->pool, 1, |
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1048 sizeof(ngx_http_xslt_file_t)) |
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1049 != NGX_OK) |
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1050 { |
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1051 return NULL; |
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1052 } |
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1053 |
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1054 return conf; |
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1055 } |
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1056 |
| 2139 | 1057 |
| 1058 static void * | |
| 1059 ngx_http_xslt_filter_create_conf(ngx_conf_t *cf) | |
| 1060 { | |
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1061 ngx_http_xslt_filter_loc_conf_t *conf; |
| 2139 | 1062 |
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1063 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_xslt_filter_loc_conf_t)); |
| 2139 | 1064 if (conf == NULL) { |
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1065 return NULL; |
| 2139 | 1066 } |
| 1067 | |
| 1068 /* | |
| 1069 * set by ngx_pcalloc(): | |
| 1070 * | |
| 2148 | 1071 * conf->dtd = NULL; |
| 1072 * conf->sheets = { NULL }; | |
| 1073 * conf->types = { NULL }; | |
| 1074 * conf->types_keys = NULL; | |
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1075 * conf->params = NULL; |
| 2139 | 1076 */ |
| 1077 | |
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1078 conf->last_modified = NGX_CONF_UNSET; |
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1079 |
| 2139 | 1080 return conf; |
| 1081 } | |
| 1082 | |
| 1083 | |
| 1084 static char * | |
| 1085 ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 1086 { | |
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1087 ngx_http_xslt_filter_loc_conf_t *prev = parent; |
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1088 ngx_http_xslt_filter_loc_conf_t *conf = child; |
| 2139 | 1089 |
| 1090 if (conf->dtd == NULL) { | |
| 1091 conf->dtd = prev->dtd; | |
| 1092 } | |
| 1093 | |
| 1094 if (conf->sheets.nelts == 0) { | |
| 1095 conf->sheets = prev->sheets; | |
| 1096 } | |
| 1097 | |
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1098 if (conf->params == NULL) { |
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1099 conf->params = prev->params; |
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1100 } |
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1101 |
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1102 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types, |
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1103 &prev->types_keys, &prev->types, |
| 2148 | 1104 ngx_http_xslt_default_types) |
| 2139 | 1105 != NGX_OK) |
| 1106 { | |
| 1107 return NGX_CONF_ERROR; | |
| 1108 } | |
| 1109 | |
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1110 ngx_conf_merge_value(conf->last_modified, prev->last_modified, 0); |
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1111 |
| 2139 | 1112 return NGX_CONF_OK; |
| 1113 } | |
| 1114 | |
| 1115 | |
| 1116 static ngx_int_t | |
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1117 ngx_http_xslt_filter_preconfiguration(ngx_conf_t *cf) |
| 2139 | 1118 { |
| 1119 xmlInitParser(); | |
| 1120 | |
| 2299 | 1121 #if (NGX_HAVE_EXSLT) |
| 1122 exsltRegisterAll(); | |
| 1123 #endif | |
| 1124 | |
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1125 return NGX_OK; |
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1126 } |
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1127 |
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1128 |
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1129 static ngx_int_t |
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1130 ngx_http_xslt_filter_init(ngx_conf_t *cf) |
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1131 { |
| 2139 | 1132 ngx_http_next_header_filter = ngx_http_top_header_filter; |
| 1133 ngx_http_top_header_filter = ngx_http_xslt_header_filter; | |
| 1134 | |
| 1135 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
| 1136 ngx_http_top_body_filter = ngx_http_xslt_body_filter; | |
| 1137 | |
| 1138 return NGX_OK; | |
| 1139 } | |
| 1140 | |
| 1141 | |
| 1142 static void | |
| 1143 ngx_http_xslt_filter_exit(ngx_cycle_t *cycle) | |
| 1144 { | |
| 1145 xsltCleanupGlobals(); | |
| 1146 xmlCleanupParser(); | |
| 1147 } |