Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_xslt_filter_module.c @ 8133:1d4417e4f2d0 quic
QUIC: fixed measuring ACK Delay against 0-RTT packets.
author | Sergey Kandaurov <pluknet@nginx.com> |
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date | Tue, 06 Oct 2020 18:08:55 +0100 |
parents | 1f3bf1734a77 |
children |
rev | line source |
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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 | |
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112 static ngx_str_t ngx_http_xslt_default_types[] = { |
2139 | 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; | |
8031 | 236 r->allow_ranges = 0; |
2139 | 237 |
238 return NGX_OK; | |
239 } | |
240 | |
241 | |
242 static ngx_int_t | |
243 ngx_http_xslt_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
244 { | |
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245 int wellFormed; |
2139 | 246 ngx_chain_t *cl; |
247 ngx_http_xslt_filter_ctx_t *ctx; | |
248 | |
249 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
250 "xslt filter body"); | |
251 | |
252 if (in == NULL) { | |
253 return ngx_http_next_body_filter(r, in); | |
254 } | |
255 | |
256 ctx = ngx_http_get_module_ctx(r, ngx_http_xslt_filter_module); | |
257 | |
258 if (ctx == NULL || ctx->done) { | |
259 return ngx_http_next_body_filter(r, in); | |
260 } | |
261 | |
262 for (cl = in; cl; cl = cl->next) { | |
263 | |
264 if (ngx_http_xslt_add_chunk(r, ctx, cl->buf) != NGX_OK) { | |
265 | |
3642 | 266 if (ctx->ctxt->myDoc) { |
2139 | 267 |
268 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
269 ctx->ctxt->myDoc->extSubset = NULL; | |
270 #endif | |
271 xmlFreeDoc(ctx->ctxt->myDoc); | |
272 } | |
273 | |
274 xmlFreeParserCtxt(ctx->ctxt); | |
275 | |
276 return ngx_http_xslt_send(r, ctx, NULL); | |
277 } | |
278 | |
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279 if (cl->buf->last_buf || cl->buf->last_in_chain) { |
2139 | 280 |
281 ctx->doc = ctx->ctxt->myDoc; | |
282 | |
283 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
284 ctx->doc->extSubset = NULL; | |
285 #endif | |
286 | |
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287 wellFormed = ctx->ctxt->wellFormed; |
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288 |
2139 | 289 xmlFreeParserCtxt(ctx->ctxt); |
290 | |
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291 if (wellFormed) { |
2139 | 292 return ngx_http_xslt_send(r, ctx, |
293 ngx_http_xslt_apply_stylesheet(r, ctx)); | |
294 } | |
295 | |
296 xmlFreeDoc(ctx->doc); | |
297 | |
298 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
299 "not well formed XML document"); | |
300 | |
301 return ngx_http_xslt_send(r, ctx, NULL); | |
302 } | |
303 } | |
304 | |
305 return NGX_OK; | |
306 } | |
307 | |
308 | |
309 static ngx_int_t | |
310 ngx_http_xslt_send(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
311 ngx_buf_t *b) | |
312 { | |
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313 ngx_int_t rc; |
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314 ngx_chain_t out; |
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315 ngx_pool_cleanup_t *cln; |
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316 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 317 |
318 ctx->done = 1; | |
319 | |
320 if (b == NULL) { | |
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321 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
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322 NGX_HTTP_INTERNAL_SERVER_ERROR); |
2139 | 323 } |
324 | |
325 cln = ngx_pool_cleanup_add(r->pool, 0); | |
326 | |
327 if (cln == NULL) { | |
328 ngx_free(b->pos); | |
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329 return ngx_http_filter_finalize_request(r, &ngx_http_xslt_filter_module, |
2139 | 330 NGX_HTTP_INTERNAL_SERVER_ERROR); |
331 } | |
332 | |
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333 if (r == r->main) { |
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334 r->headers_out.content_length_n = b->last - b->pos; |
2139 | 335 |
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336 if (r->headers_out.content_length) { |
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337 r->headers_out.content_length->hash = 0; |
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338 r->headers_out.content_length = NULL; |
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339 } |
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340 |
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341 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); |
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342 |
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343 if (!conf->last_modified) { |
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344 ngx_http_clear_last_modified(r); |
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345 ngx_http_clear_etag(r); |
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346 |
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347 } else { |
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348 ngx_http_weak_etag(r); |
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349 } |
2139 | 350 } |
351 | |
352 rc = ngx_http_next_header_filter(r); | |
353 | |
354 if (rc == NGX_ERROR || rc > NGX_OK || r->header_only) { | |
355 ngx_free(b->pos); | |
356 return rc; | |
357 } | |
358 | |
359 cln->handler = ngx_http_xslt_cleanup; | |
360 cln->data = b->pos; | |
361 | |
362 out.buf = b; | |
363 out.next = NULL; | |
364 | |
365 return ngx_http_next_body_filter(r, &out); | |
366 } | |
367 | |
368 | |
369 static ngx_int_t | |
370 ngx_http_xslt_add_chunk(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
371 ngx_buf_t *b) | |
372 { | |
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373 int err; |
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374 xmlParserCtxtPtr ctxt; |
2139 | 375 |
376 if (ctx->ctxt == NULL) { | |
377 | |
378 ctxt = xmlCreatePushParserCtxt(NULL, NULL, NULL, 0, NULL); | |
379 if (ctxt == NULL) { | |
380 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
381 "xmlCreatePushParserCtxt() failed"); | |
382 return NGX_ERROR; | |
383 } | |
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384 xmlCtxtUseOptions(ctxt, XML_PARSE_NOENT|XML_PARSE_DTDLOAD |
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385 |XML_PARSE_NOWARNING); |
2139 | 386 |
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387 ctxt->sax->externalSubset = ngx_http_xslt_sax_external_subset; |
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388 ctxt->sax->setDocumentLocator = NULL; |
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389 ctxt->sax->error = ngx_http_xslt_sax_error; |
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390 ctxt->sax->fatalError = ngx_http_xslt_sax_error; |
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391 ctxt->sax->_private = ctx; |
2139 | 392 |
393 ctx->ctxt = ctxt; | |
394 ctx->request = r; | |
395 } | |
396 | |
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397 err = xmlParseChunk(ctx->ctxt, (char *) b->pos, (int) (b->last - b->pos), |
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398 (b->last_buf) || (b->last_in_chain)); |
2139 | 399 |
400 if (err == 0) { | |
401 b->pos = b->last; | |
402 return NGX_OK; | |
403 } | |
404 | |
405 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
406 "xmlParseChunk() failed, error:%d", err); | |
407 | |
408 return NGX_ERROR; | |
409 } | |
410 | |
411 | |
412 static void | |
413 ngx_http_xslt_sax_external_subset(void *data, const xmlChar *name, | |
414 const xmlChar *externalId, const xmlChar *systemId) | |
415 { | |
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416 xmlParserCtxtPtr ctxt = data; |
2139 | 417 |
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418 xmlDocPtr doc; |
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419 xmlDtdPtr dtd; |
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420 ngx_http_request_t *r; |
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421 ngx_http_xslt_filter_ctx_t *ctx; |
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422 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 423 |
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424 ctx = ctxt->sax->_private; |
2139 | 425 r = ctx->request; |
426 | |
427 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
428 | |
429 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
430 "xslt filter extSubset: \"%s\" \"%s\" \"%s\"", | |
431 name ? name : (xmlChar *) "", | |
432 externalId ? externalId : (xmlChar *) "", | |
433 systemId ? systemId : (xmlChar *) ""); | |
434 | |
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435 doc = ctxt->myDoc; |
2139 | 436 |
437 #if (NGX_HTTP_XSLT_REUSE_DTD) | |
438 | |
439 dtd = conf->dtd; | |
440 | |
441 #else | |
442 | |
443 dtd = xmlCopyDtd(conf->dtd); | |
444 if (dtd == NULL) { | |
445 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
446 "xmlCopyDtd() failed"); | |
447 return; | |
448 } | |
449 | |
450 if (doc->children == NULL) { | |
451 xmlAddChild((xmlNodePtr) doc, (xmlNodePtr) dtd); | |
452 | |
453 } else { | |
454 xmlAddPrevSibling(doc->children, (xmlNodePtr) dtd); | |
455 } | |
456 | |
457 #endif | |
458 | |
459 doc->extSubset = dtd; | |
460 } | |
461 | |
462 | |
463 static void ngx_cdecl | |
464 ngx_http_xslt_sax_error(void *data, const char *msg, ...) | |
465 { | |
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466 xmlParserCtxtPtr ctxt = data; |
2139 | 467 |
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468 size_t n; |
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469 va_list args; |
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470 ngx_http_xslt_filter_ctx_t *ctx; |
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471 u_char buf[NGX_MAX_ERROR_STR]; |
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472 |
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473 ctx = ctxt->sax->_private; |
2139 | 474 |
475 buf[0] = '\0'; | |
476 | |
477 va_start(args, msg); | |
478 n = (size_t) vsnprintf((char *) buf, NGX_MAX_ERROR_STR, msg, args); | |
479 va_end(args); | |
480 | |
481 while (--n && (buf[n] == CR || buf[n] == LF)) { /* void */ } | |
482 | |
483 ngx_log_error(NGX_LOG_ERR, ctx->request->connection->log, 0, | |
2999 | 484 "libxml2 error: \"%*s\"", n + 1, buf); |
2139 | 485 } |
486 | |
487 | |
488 static ngx_buf_t * | |
489 ngx_http_xslt_apply_stylesheet(ngx_http_request_t *r, | |
490 ngx_http_xslt_filter_ctx_t *ctx) | |
491 { | |
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492 int len, rc, doc_type; |
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493 u_char *type, *encoding; |
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494 ngx_buf_t *b; |
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495 ngx_uint_t i; |
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496 xmlChar *buf; |
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497 xmlDocPtr doc, res; |
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498 ngx_http_xslt_sheet_t *sheet; |
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499 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 500 |
501 conf = ngx_http_get_module_loc_conf(r, ngx_http_xslt_filter_module); | |
502 sheet = conf->sheets.elts; | |
503 doc = ctx->doc; | |
504 | |
505 /* preallocate array for 4 params */ | |
506 | |
507 if (ngx_array_init(&ctx->params, r->pool, 4 * 2 + 1, sizeof(char *)) | |
508 != NGX_OK) | |
509 { | |
510 xmlFreeDoc(doc); | |
511 return NULL; | |
512 } | |
513 | |
514 for (i = 0; i < conf->sheets.nelts; i++) { | |
515 | |
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516 ctx->transform = xsltNewTransformContext(sheet[i].stylesheet, doc); |
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517 if (ctx->transform == NULL) { |
2139 | 518 xmlFreeDoc(doc); |
519 return NULL; | |
520 } | |
521 | |
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522 if (conf->params |
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523 && ngx_http_xslt_params(r, ctx, conf->params, 0) != NGX_OK) |
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524 { |
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525 xsltFreeTransformContext(ctx->transform); |
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526 xmlFreeDoc(doc); |
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527 return NULL; |
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528 } |
2139 | 529 |
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530 if (ngx_http_xslt_params(r, ctx, &sheet[i].params, 1) != NGX_OK) { |
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531 xsltFreeTransformContext(ctx->transform); |
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532 xmlFreeDoc(doc); |
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533 return NULL; |
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534 } |
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|
535 |
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Added xslt_param and xslt_string_param directives.
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536 res = xsltApplyStylesheetUser(sheet[i].stylesheet, doc, |
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537 ctx->params.elts, NULL, NULL, |
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Added xslt_param and xslt_string_param directives.
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538 ctx->transform); |
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539 |
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Added xslt_param and xslt_string_param directives.
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|
540 xsltFreeTransformContext(ctx->transform); |
2139 | 541 xmlFreeDoc(doc); |
542 | |
543 if (res == NULL) { | |
544 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
545 "xsltApplyStylesheet() failed"); | |
546 return NULL; | |
547 } | |
548 | |
549 doc = res; | |
550 | |
551 /* reset array elements */ | |
552 ctx->params.nelts = 0; | |
553 } | |
554 | |
2153
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555 /* there must be at least one stylesheet */ |
2139 | 556 |
2159
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clear Last-Modified; set content-type and length for main request only
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557 if (r == r->main) { |
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558 type = ngx_http_xslt_content_type(sheet[i - 1].stylesheet); |
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559 |
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560 } else { |
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561 type = NULL; |
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562 } |
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563 |
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564 encoding = ngx_http_xslt_encoding(sheet[i - 1].stylesheet); |
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565 doc_type = doc->type; |
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566 |
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567 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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568 "xslt filter type: %d t:%s e:%s", |
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569 doc_type, type ? type : (u_char *) "(null)", |
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570 encoding ? encoding : (u_char *) "(null)"); |
2139 | 571 |
572 rc = xsltSaveResultToString(&buf, &len, doc, sheet[i - 1].stylesheet); | |
573 | |
574 xmlFreeDoc(doc); | |
575 | |
576 if (rc != 0) { | |
577 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
578 "xsltSaveResultToString() failed"); | |
579 return NULL; | |
580 } | |
581 | |
582 if (len == 0) { | |
583 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
584 "xsltSaveResultToString() returned zero-length result"); | |
585 return NULL; | |
586 } | |
587 | |
6973
99934aade555
Use ngx_calloc_buf() where appropriate.
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588 b = ngx_calloc_buf(r->pool); |
2139 | 589 if (b == NULL) { |
590 ngx_free(buf); | |
591 return NULL; | |
592 } | |
593 | |
594 b->pos = buf; | |
595 b->last = buf + len; | |
596 b->memory = 1; | |
597 | |
2159
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598 if (encoding) { |
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599 r->headers_out.charset.len = ngx_strlen(encoding); |
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600 r->headers_out.charset.data = encoding; |
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601 } |
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602 |
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603 if (r != r->main) { |
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604 return b; |
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605 } |
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|
606 |
2899
61d5b945730a
fix XSLT filter in SSI subrequests
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|
607 b->last_buf = 1; |
61d5b945730a
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|
608 |
2153
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609 if (type) { |
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610 len = ngx_strlen(type); |
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|
611 |
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612 r->headers_out.content_type_len = len; |
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613 r->headers_out.content_type.len = len; |
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|
614 r->headers_out.content_type.data = type; |
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615 |
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616 } else if (doc_type == XML_HTML_DOCUMENT_NODE) { |
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|
617 |
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diff
changeset
|
618 r->headers_out.content_type_len = sizeof("text/html") - 1; |
3516
dd1570b6f237
ngx_str_set() and ngx_str_null()
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parents:
3508
diff
changeset
|
619 ngx_str_set(&r->headers_out.content_type, "text/html"); |
2153
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620 } |
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|
621 |
2882
896db5a09bd2
reset content_type hash value, this fixes a bug when XSLT responses
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diff
changeset
|
622 r->headers_out.content_type_lowcase = NULL; |
896db5a09bd2
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623 |
2139 | 624 return b; |
625 } | |
626 | |
627 | |
628 static ngx_int_t | |
629 ngx_http_xslt_params(ngx_http_request_t *r, ngx_http_xslt_filter_ctx_t *ctx, | |
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
630 ngx_array_t *params, ngx_uint_t final) |
2139 | 631 { |
7540
9a970c905045
Xslt: fixed potential buffer overflow with null character.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7154
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changeset
|
632 u_char *p, *value, *dst, *src, **s; |
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
633 size_t len; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
634 ngx_uint_t i; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
635 ngx_str_t string; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
636 ngx_http_xslt_param_t *param; |
2139 | 637 |
638 param = params->elts; | |
639 | |
640 for (i = 0; i < params->nelts; i++) { | |
641 | |
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
642 if (ngx_http_complex_value(r, ¶m[i].value, &string) != NGX_OK) { |
2139 | 643 return NGX_ERROR; |
644 } | |
645 | |
646 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
647 "xslt filter param: \"%s\"", string.data); | |
648 | |
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
649 if (param[i].name) { |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
650 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
651 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
652 "xslt filter param name: \"%s\"", param[i].name); |
212a0251951b
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|
653 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
654 if (param[i].quote) { |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
655 if (xsltQuoteOneUserParam(ctx->transform, param[i].name, |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
656 string.data) |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
657 != 0) |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
658 { |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
659 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
660 "xsltQuoteOneUserParam(\"%s\", \"%s\") failed", |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
661 param[i].name, string.data); |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
662 return NGX_ERROR; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
663 } |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
664 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
665 continue; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
666 } |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
667 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
668 s = ngx_array_push(&ctx->params); |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
669 if (s == NULL) { |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
670 return NGX_ERROR; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
671 } |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
672 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
673 *s = param[i].name; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
674 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
675 s = ngx_array_push(&ctx->params); |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
676 if (s == NULL) { |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
677 return NGX_ERROR; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
678 } |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
679 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
680 *s = string.data; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
681 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
682 continue; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
683 } |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
changeset
|
684 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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changeset
|
685 /* |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
686 * parse param1=value1:param2=value2 syntax as used by parameters |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
687 * specified in xslt_stylesheet directives |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
688 */ |
212a0251951b
Added xslt_param and xslt_string_param directives.
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diff
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|
689 |
7154
595a3de03e91
Xslt: fixed parameters parsing (ticket #1416).
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parents:
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|
690 if (param[i].value.lengths) { |
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|
691 p = string.data; |
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|
692 |
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Xslt: fixed parameters parsing (ticket #1416).
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|
693 } else { |
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|
694 p = ngx_pnalloc(r->pool, string.len + 1); |
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|
695 if (p == NULL) { |
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|
696 return NGX_ERROR; |
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Xslt: fixed parameters parsing (ticket #1416).
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parents:
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|
697 } |
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Xslt: fixed parameters parsing (ticket #1416).
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changeset
|
698 |
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Xslt: fixed parameters parsing (ticket #1416).
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|
699 ngx_memcpy(p, string.data, string.len + 1); |
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|
700 } |
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701 |
2139 | 702 while (p && *p) { |
703 | |
704 value = p; | |
705 p = (u_char *) ngx_strchr(p, '='); | |
706 if (p == NULL) { | |
707 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
708 "invalid libxslt parameter \"%s\"", value); | |
709 return NGX_ERROR; | |
710 } | |
711 *p++ = '\0'; | |
712 | |
713 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
714 "xslt filter param name: \"%s\"", value); | |
715 | |
716 s = ngx_array_push(&ctx->params); | |
717 if (s == NULL) { | |
718 return NGX_ERROR; | |
719 } | |
720 | |
721 *s = value; | |
722 | |
723 value = p; | |
724 p = (u_char *) ngx_strchr(p, ':'); | |
725 | |
726 if (p) { | |
727 len = p - value; | |
728 *p++ = '\0'; | |
729 | |
730 } else { | |
7540
9a970c905045
Xslt: fixed potential buffer overflow with null character.
Maxim Dounin <mdounin@mdounin.ru>
parents:
7154
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|
731 len = ngx_strlen(value); |
2139 | 732 } |
733 | |
734 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
735 "xslt filter param value: \"%s\"", value); | |
736 | |
737 dst = value; | |
738 src = value; | |
739 | |
740 ngx_unescape_uri(&dst, &src, len, 0); | |
741 | |
742 *dst = '\0'; | |
743 | |
744 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
745 "xslt filter param unescaped: \"%s\"", value); | |
746 | |
747 s = ngx_array_push(&ctx->params); | |
748 if (s == NULL) { | |
749 return NGX_ERROR; | |
750 } | |
751 | |
752 *s = value; | |
753 } | |
754 } | |
755 | |
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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parents:
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|
756 if (final) { |
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Added xslt_param and xslt_string_param directives.
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|
757 s = ngx_array_push(&ctx->params); |
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Added xslt_param and xslt_string_param directives.
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|
758 if (s == NULL) { |
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Added xslt_param and xslt_string_param directives.
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|
759 return NGX_ERROR; |
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760 } |
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761 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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762 *s = NULL; |
2139 | 763 } |
764 | |
765 return NGX_OK; | |
766 } | |
767 | |
768 | |
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769 static u_char * |
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770 ngx_http_xslt_content_type(xsltStylesheetPtr s) |
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771 { |
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|
772 u_char *type; |
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773 |
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|
774 if (s->mediaType) { |
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775 return s->mediaType; |
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776 } |
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777 |
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|
778 for (s = s->imports; s; s = s->next) { |
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779 |
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|
780 type = ngx_http_xslt_content_type(s); |
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|
781 |
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782 if (type) { |
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783 return type; |
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|
784 } |
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785 } |
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786 |
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787 return NULL; |
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788 } |
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789 |
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790 |
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791 static u_char * |
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792 ngx_http_xslt_encoding(xsltStylesheetPtr s) |
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793 { |
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|
794 u_char *encoding; |
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|
795 |
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796 if (s->encoding) { |
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|
797 return s->encoding; |
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diff
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|
798 } |
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|
799 |
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2152
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800 for (s = s->imports; s; s = s->next) { |
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|
801 |
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802 encoding = ngx_http_xslt_encoding(s); |
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|
803 |
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804 if (encoding) { |
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|
805 return encoding; |
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changeset
|
806 } |
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|
807 } |
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changeset
|
808 |
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diff
changeset
|
809 return NULL; |
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diff
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|
810 } |
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|
811 |
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parents:
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|
812 |
2139 | 813 static void |
814 ngx_http_xslt_cleanup(void *data) | |
815 { | |
816 ngx_free(data); | |
817 } | |
818 | |
819 | |
820 static char * | |
821 ngx_http_xslt_entities(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
822 { | |
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823 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
2139 | 824 |
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825 ngx_str_t *value; |
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826 ngx_uint_t i; |
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827 ngx_pool_cleanup_t *cln; |
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828 ngx_http_xslt_file_t *file; |
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829 ngx_http_xslt_filter_main_conf_t *xmcf; |
2139 | 830 |
831 if (xlcf->dtd) { | |
832 return "is duplicate"; | |
833 } | |
834 | |
835 value = cf->args->elts; | |
836 | |
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837 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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838 |
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839 file = xmcf->dtd_files.elts; |
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840 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
|
841 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
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842 xlcf->dtd = file[i].data; |
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843 return NGX_CONF_OK; |
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844 } |
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845 } |
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846 |
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847 cln = ngx_pool_cleanup_add(cf->pool, 0); |
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848 if (cln == NULL) { |
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849 return NGX_CONF_ERROR; |
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850 } |
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851 |
2139 | 852 xlcf->dtd = xmlParseDTD(NULL, (xmlChar *) value[1].data); |
853 | |
854 if (xlcf->dtd == NULL) { | |
855 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, "xmlParseDTD() failed"); | |
856 return NGX_CONF_ERROR; | |
857 } | |
858 | |
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859 cln->handler = ngx_http_xslt_cleanup_dtd; |
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860 cln->data = xlcf->dtd; |
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861 |
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862 file = ngx_array_push(&xmcf->dtd_files); |
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863 if (file == NULL) { |
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864 return NGX_CONF_ERROR; |
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865 } |
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866 |
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867 file->name = value[1].data; |
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868 file->data = xlcf->dtd; |
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869 |
2139 | 870 return NGX_CONF_OK; |
871 } | |
872 | |
873 | |
874 | |
875 static char * | |
876 ngx_http_xslt_stylesheet(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
877 { | |
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878 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
2139 | 879 |
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880 ngx_str_t *value; |
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881 ngx_uint_t i, n; |
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882 ngx_pool_cleanup_t *cln; |
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883 ngx_http_xslt_file_t *file; |
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|
884 ngx_http_xslt_sheet_t *sheet; |
4554
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Added xslt_param and xslt_string_param directives.
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|
885 ngx_http_xslt_param_t *param; |
2588
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|
886 ngx_http_compile_complex_value_t ccv; |
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|
887 ngx_http_xslt_filter_main_conf_t *xmcf; |
2139 | 888 |
889 value = cf->args->elts; | |
890 | |
891 if (xlcf->sheets.elts == NULL) { | |
892 if (ngx_array_init(&xlcf->sheets, cf->pool, 1, | |
893 sizeof(ngx_http_xslt_sheet_t)) | |
894 != NGX_OK) | |
895 { | |
896 return NGX_CONF_ERROR; | |
897 } | |
898 } | |
899 | |
900 sheet = ngx_array_push(&xlcf->sheets); | |
901 if (sheet == NULL) { | |
902 return NGX_CONF_ERROR; | |
903 } | |
904 | |
905 ngx_memzero(sheet, sizeof(ngx_http_xslt_sheet_t)); | |
906 | |
5330
314c3d7cc3a5
Backed out f1a91825730a and 7094bd12c1ff.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5317
diff
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|
907 if (ngx_conf_full_name(cf->cycle, &value[1], 0) != NGX_OK) { |
2139 | 908 return NGX_CONF_ERROR; |
909 } | |
910 | |
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911 xmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_xslt_filter_module); |
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912 |
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913 file = xmcf->sheet_files.elts; |
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914 for (i = 0; i < xmcf->sheet_files.nelts; i++) { |
4646
959371df1806
Fixed the reuse of parsed DTDs and XSLTs.
Ruslan Ermilov <ru@nginx.com>
parents:
4560
diff
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|
915 if (ngx_strcmp(file[i].name, value[1].data) == 0) { |
2156
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916 sheet->stylesheet = file[i].data; |
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|
917 goto found; |
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918 } |
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919 } |
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920 |
2139 | 921 cln = ngx_pool_cleanup_add(cf->pool, 0); |
922 if (cln == NULL) { | |
923 return NGX_CONF_ERROR; | |
924 } | |
925 | |
926 sheet->stylesheet = xsltParseStylesheetFile(value[1].data); | |
927 if (sheet->stylesheet == NULL) { | |
928 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
929 "xsltParseStylesheetFile(\"%s\") failed", | |
930 value[1].data); | |
931 return NGX_CONF_ERROR; | |
932 } | |
933 | |
934 cln->handler = ngx_http_xslt_cleanup_stylesheet; | |
935 cln->data = sheet->stylesheet; | |
936 | |
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937 file = ngx_array_push(&xmcf->sheet_files); |
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938 if (file == NULL) { |
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939 return NGX_CONF_ERROR; |
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940 } |
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941 |
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942 file->name = value[1].data; |
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943 file->data = sheet->stylesheet; |
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944 |
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945 found: |
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946 |
2139 | 947 n = cf->args->nelts; |
948 | |
949 if (n == 2) { | |
950 return NGX_CONF_OK; | |
951 } | |
952 | |
953 if (ngx_array_init(&sheet->params, cf->pool, n - 2, | |
4554
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
954 sizeof(ngx_http_xslt_param_t)) |
2139 | 955 != NGX_OK) |
956 { | |
957 return NGX_CONF_ERROR; | |
958 } | |
959 | |
960 for (i = 2; i < n; i++) { | |
961 | |
962 param = ngx_array_push(&sheet->params); | |
963 if (param == NULL) { | |
964 return NGX_CONF_ERROR; | |
965 } | |
966 | |
4554
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|
967 ngx_memzero(param, sizeof(ngx_http_xslt_param_t)); |
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|
968 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
2139 | 969 |
2588
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|
970 ccv.cf = cf; |
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|
971 ccv.value = &value[i]; |
4554
212a0251951b
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|
972 ccv.complex_value = ¶m->value; |
2588
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|
973 ccv.zero = 1; |
2139 | 974 |
2588
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|
975 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
2139 | 976 return NGX_CONF_ERROR; |
977 } | |
978 } | |
979 | |
980 return NGX_CONF_OK; | |
981 } | |
982 | |
983 | |
4554
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|
984 static char * |
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|
985 ngx_http_xslt_param(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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|
986 { |
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987 ngx_http_xslt_filter_loc_conf_t *xlcf = conf; |
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988 |
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989 ngx_http_xslt_param_t *param; |
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990 ngx_http_compile_complex_value_t ccv; |
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|
991 ngx_str_t *value; |
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|
992 |
212a0251951b
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993 value = cf->args->elts; |
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|
994 |
212a0251951b
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|
995 if (xlcf->params == NULL) { |
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|
996 xlcf->params = ngx_array_create(cf->pool, 2, |
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|
997 sizeof(ngx_http_xslt_param_t)); |
212a0251951b
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998 if (xlcf->params == NULL) { |
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999 return NGX_CONF_ERROR; |
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|
1000 } |
212a0251951b
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|
1001 } |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1002 |
212a0251951b
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|
1003 param = ngx_array_push(xlcf->params); |
212a0251951b
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|
1004 if (param == NULL) { |
212a0251951b
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|
1005 return NGX_CONF_ERROR; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1006 } |
212a0251951b
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changeset
|
1007 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1008 param->name = value[1].data; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1009 param->quote = (cmd->post == NULL) ? 0 : 1; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1010 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1011 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1012 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1013 ccv.cf = cf; |
212a0251951b
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|
1014 ccv.value = &value[2]; |
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|
1015 ccv.complex_value = ¶m->value; |
212a0251951b
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1016 ccv.zero = 1; |
212a0251951b
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|
1017 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1018 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { |
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|
1019 return NGX_CONF_ERROR; |
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|
1020 } |
212a0251951b
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|
1021 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1022 return NGX_CONF_OK; |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1023 } |
212a0251951b
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|
1024 |
212a0251951b
Added xslt_param and xslt_string_param directives.
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|
1025 |
2139 | 1026 static void |
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1027 ngx_http_xslt_cleanup_dtd(void *data) |
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1028 { |
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1029 xmlFreeDtd(data); |
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1030 } |
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1031 |
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1032 |
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|
1033 static void |
2139 | 1034 ngx_http_xslt_cleanup_stylesheet(void *data) |
1035 { | |
2156
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|
1036 xsltFreeStylesheet(data); |
2139 | 1037 } |
1038 | |
1039 | |
2154
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1040 static void * |
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|
1041 ngx_http_xslt_filter_create_main_conf(ngx_conf_t *cf) |
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1042 { |
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|
1043 ngx_http_xslt_filter_main_conf_t *conf; |
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1044 |
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1045 conf = ngx_palloc(cf->pool, sizeof(ngx_http_xslt_filter_main_conf_t)); |
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|
1046 if (conf == NULL) { |
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
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diff
changeset
|
1047 return NULL; |
2154
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|
1048 } |
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|
1049 |
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|
1050 if (ngx_array_init(&conf->dtd_files, cf->pool, 1, |
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|
1051 sizeof(ngx_http_xslt_file_t)) |
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|
1052 != NGX_OK) |
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1053 { |
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|
1054 return NULL; |
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|
1055 } |
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1056 |
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1057 if (ngx_array_init(&conf->sheet_files, cf->pool, 1, |
2156
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1058 sizeof(ngx_http_xslt_file_t)) |
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1059 != NGX_OK) |
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1060 { |
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1061 return NULL; |
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1062 } |
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1063 |
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1064 return conf; |
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1065 } |
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1066 |
2139 | 1067 |
1068 static void * | |
1069 ngx_http_xslt_filter_create_conf(ngx_conf_t *cf) | |
1070 { | |
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1071 ngx_http_xslt_filter_loc_conf_t *conf; |
2139 | 1072 |
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1073 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_xslt_filter_loc_conf_t)); |
2139 | 1074 if (conf == NULL) { |
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1075 return NULL; |
2139 | 1076 } |
1077 | |
1078 /* | |
1079 * set by ngx_pcalloc(): | |
1080 * | |
2148 | 1081 * conf->dtd = NULL; |
1082 * conf->sheets = { NULL }; | |
1083 * conf->types = { NULL }; | |
1084 * conf->types_keys = NULL; | |
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1085 * conf->params = NULL; |
2139 | 1086 */ |
1087 | |
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1088 conf->last_modified = NGX_CONF_UNSET; |
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1089 |
2139 | 1090 return conf; |
1091 } | |
1092 | |
1093 | |
1094 static char * | |
1095 ngx_http_xslt_filter_merge_conf(ngx_conf_t *cf, void *parent, void *child) | |
1096 { | |
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1097 ngx_http_xslt_filter_loc_conf_t *prev = parent; |
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1098 ngx_http_xslt_filter_loc_conf_t *conf = child; |
2139 | 1099 |
1100 if (conf->dtd == NULL) { | |
1101 conf->dtd = prev->dtd; | |
1102 } | |
1103 | |
1104 if (conf->sheets.nelts == 0) { | |
1105 conf->sheets = prev->sheets; | |
1106 } | |
1107 | |
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1108 if (conf->params == NULL) { |
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1109 conf->params = prev->params; |
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1110 } |
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1111 |
3372
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1112 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types, |
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1113 &prev->types_keys, &prev->types, |
2148 | 1114 ngx_http_xslt_default_types) |
2139 | 1115 != NGX_OK) |
1116 { | |
1117 return NGX_CONF_ERROR; | |
1118 } | |
1119 | |
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1120 ngx_conf_merge_value(conf->last_modified, prev->last_modified, 0); |
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1121 |
2139 | 1122 return NGX_CONF_OK; |
1123 } | |
1124 | |
1125 | |
1126 static ngx_int_t | |
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1127 ngx_http_xslt_filter_preconfiguration(ngx_conf_t *cf) |
2139 | 1128 { |
1129 xmlInitParser(); | |
1130 | |
2299 | 1131 #if (NGX_HAVE_EXSLT) |
1132 exsltRegisterAll(); | |
1133 #endif | |
1134 | |
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1135 return NGX_OK; |
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1136 } |
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1137 |
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1138 |
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1139 static ngx_int_t |
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1140 ngx_http_xslt_filter_init(ngx_conf_t *cf) |
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1141 { |
2139 | 1142 ngx_http_next_header_filter = ngx_http_top_header_filter; |
1143 ngx_http_top_header_filter = ngx_http_xslt_header_filter; | |
1144 | |
1145 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
1146 ngx_http_top_body_filter = ngx_http_xslt_body_filter; | |
1147 | |
1148 return NGX_OK; | |
1149 } | |
1150 | |
1151 | |
1152 static void | |
1153 ngx_http_xslt_filter_exit(ngx_cycle_t *cycle) | |
1154 { | |
1155 xsltCleanupGlobals(); | |
1156 xmlCleanupParser(); | |
1157 } |