Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_rewrite_module.c @ 8619:678d1c7a3003 quic
Configure: simplified condition.
author | Ruslan Ermilov <ru@nginx.com> |
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date | Tue, 21 Sep 2021 14:46:17 +0300 |
parents | db8df9cd84c8 |
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rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
4412 | 4 * Copyright (C) Nginx, Inc. |
441
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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11 |
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12 |
485 | 13 typedef struct { |
577 | 14 ngx_array_t *codes; /* uintptr_t */ |
485 | 15 |
577 | 16 ngx_uint_t stack_size; |
485 | 17 |
577 | 18 ngx_flag_t log; |
635 | 19 ngx_flag_t uninitialized_variable_warn; |
485 | 20 } ngx_http_rewrite_loc_conf_t; |
216
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21 |
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22 |
485 | 23 static void *ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf); |
24 static char *ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, | |
487 | 25 void *parent, void *child); |
681 | 26 static ngx_int_t ngx_http_rewrite_init(ngx_conf_t *cf); |
485 | 27 static char *ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
28 static char *ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, | |
487 | 29 void *conf); |
527 | 30 static char *ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, |
31 void *conf); | |
485 | 32 static char *ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, |
487 | 33 void *conf); |
501 | 34 static char * ngx_http_rewrite_if_condition(ngx_conf_t *cf, |
35 ngx_http_rewrite_loc_conf_t *lcf); | |
36 static char *ngx_http_rewrite_variable(ngx_conf_t *cf, | |
37 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
509 | 38 static char *ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, |
501 | 39 void *conf); |
577 | 40 static char * ngx_http_rewrite_value(ngx_conf_t *cf, |
41 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
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42 |
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44 static ngx_command_t ngx_http_rewrite_commands[] = { |
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45 |
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46 { ngx_string("rewrite"), |
485 | 47 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
48 |NGX_CONF_TAKE23, | |
49 ngx_http_rewrite, | |
50 NGX_HTTP_LOC_CONF_OFFSET, | |
51 0, | |
52 NULL }, | |
53 | |
54 { ngx_string("return"), | |
55 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
3633 | 56 |NGX_CONF_TAKE12, |
485 | 57 ngx_http_rewrite_return, |
58 NGX_HTTP_LOC_CONF_OFFSET, | |
216
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59 0, |
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60 NULL }, |
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61 |
527 | 62 { ngx_string("break"), |
63 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
64 |NGX_CONF_NOARGS, | |
65 ngx_http_rewrite_break, | |
66 NGX_HTTP_LOC_CONF_OFFSET, | |
67 0, | |
68 NULL }, | |
69 | |
485 | 70 { ngx_string("if"), |
71 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE, | |
72 ngx_http_rewrite_if, | |
437
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73 NGX_HTTP_LOC_CONF_OFFSET, |
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74 0, |
485 | 75 NULL }, |
76 | |
501 | 77 { ngx_string("set"), |
78 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
79 |NGX_CONF_TAKE2, | |
80 ngx_http_rewrite_set, | |
81 NGX_HTTP_LOC_CONF_OFFSET, | |
82 0, | |
83 NULL }, | |
84 | |
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85 { ngx_string("rewrite_log"), |
635 | 86 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF |
87 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
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88 ngx_conf_set_flag_slot, |
485 | 89 NGX_HTTP_LOC_CONF_OFFSET, |
90 offsetof(ngx_http_rewrite_loc_conf_t, log), | |
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91 NULL }, |
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92 |
635 | 93 { ngx_string("uninitialized_variable_warn"), |
94 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF | |
95 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
96 ngx_conf_set_flag_slot, | |
97 NGX_HTTP_LOC_CONF_OFFSET, | |
98 offsetof(ngx_http_rewrite_loc_conf_t, uninitialized_variable_warn), | |
99 NULL }, | |
100 | |
216
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101 ngx_null_command |
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102 }; |
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103 |
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104 |
667 | 105 static ngx_http_module_t ngx_http_rewrite_module_ctx = { |
509 | 106 NULL, /* preconfiguration */ |
681 | 107 ngx_http_rewrite_init, /* postconfiguration */ |
216
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108 |
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109 NULL, /* create main configuration */ |
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110 NULL, /* init main configuration */ |
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111 |
485 | 112 NULL, /* create server configuration */ |
113 NULL, /* merge server configuration */ | |
216
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114 |
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115 ngx_http_rewrite_create_loc_conf, /* create location configuration */ |
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116 ngx_http_rewrite_merge_loc_conf /* merge location configuration */ |
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117 }; |
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118 |
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119 |
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120 ngx_module_t ngx_http_rewrite_module = { |
509 | 121 NGX_MODULE_V1, |
577 | 122 &ngx_http_rewrite_module_ctx, /* module context */ |
216
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123 ngx_http_rewrite_commands, /* module directives */ |
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124 NGX_HTTP_MODULE, /* module type */ |
541 | 125 NULL, /* init master */ |
681 | 126 NULL, /* init module */ |
541 | 127 NULL, /* init process */ |
128 NULL, /* init thread */ | |
129 NULL, /* exit thread */ | |
130 NULL, /* exit process */ | |
131 NULL, /* exit master */ | |
132 NGX_MODULE_V1_PADDING | |
216
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133 }; |
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134 |
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135 |
487 | 136 static ngx_int_t |
137 ngx_http_rewrite_handler(ngx_http_request_t *r) | |
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138 { |
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139 ngx_int_t index; |
509 | 140 ngx_http_script_code_pt code; |
141 ngx_http_script_engine_t *e; | |
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142 ngx_http_core_srv_conf_t *cscf; |
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143 ngx_http_core_main_conf_t *cmcf; |
635 | 144 ngx_http_rewrite_loc_conf_t *rlcf; |
216
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145 |
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146 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); |
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147 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); |
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148 index = cmcf->phase_engine.location_rewrite_index; |
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149 |
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150 if (r->phase_handler == index && r->loc_conf == cscf->ctx->loc_conf) { |
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151 /* skipping location rewrite phase for server null location */ |
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152 return NGX_DECLINED; |
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153 } |
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154 |
635 | 155 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); |
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156 |
635 | 157 if (rlcf->codes == NULL) { |
485 | 158 return NGX_DECLINED; |
159 } | |
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160 |
509 | 161 e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t)); |
501 | 162 if (e == NULL) { |
485 | 163 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
164 } | |
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165 |
509 | 166 e->sp = ngx_pcalloc(r->pool, |
635 | 167 rlcf->stack_size * sizeof(ngx_http_variable_value_t)); |
485 | 168 if (e->sp == NULL) { |
169 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
170 } | |
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171 |
635 | 172 e->ip = rlcf->codes->elts; |
509 | 173 e->request = r; |
485 | 174 e->quote = 1; |
635 | 175 e->log = rlcf->log; |
485 | 176 e->status = NGX_DECLINED; |
177 | |
178 while (*(uintptr_t *) e->ip) { | |
509 | 179 code = *(ngx_http_script_code_pt *) e->ip; |
485 | 180 code(e); |
181 } | |
182 | |
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183 return e->status; |
485 | 184 } |
185 | |
186 | |
573 | 187 static ngx_int_t |
188 ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
189 uintptr_t data) | |
501 | 190 { |
635 | 191 ngx_http_variable_t *var; |
192 ngx_http_core_main_conf_t *cmcf; | |
193 ngx_http_rewrite_loc_conf_t *rlcf; | |
194 | |
195 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); | |
196 | |
197 if (rlcf->uninitialized_variable_warn == 0) { | |
198 *v = ngx_http_variable_null_value; | |
199 return NGX_OK; | |
200 } | |
501 | 201 |
202 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
203 | |
204 var = cmcf->variables.elts; | |
205 | |
206 /* | |
207 * the ngx_http_rewrite_module sets variables directly in r->variables, | |
519 | 208 * and they should be handled by ngx_http_get_indexed_variable(), |
501 | 209 * so the handler is called only if the variable is not initialized |
210 */ | |
211 | |
635 | 212 ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
501 | 213 "using uninitialized \"%V\" variable", &var[data].name); |
214 | |
577 | 215 *v = ngx_http_variable_null_value; |
573 | 216 |
217 return NGX_OK; | |
501 | 218 } |
219 | |
220 | |
487 | 221 static void * |
222 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) | |
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223 { |
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224 ngx_http_rewrite_loc_conf_t *conf; |
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225 |
501 | 226 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); |
227 if (conf == NULL) { | |
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228 return NULL; |
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229 } |
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230 |
485 | 231 conf->stack_size = NGX_CONF_UNSET_UINT; |
232 conf->log = NGX_CONF_UNSET; | |
635 | 233 conf->uninitialized_variable_warn = NGX_CONF_UNSET; |
485 | 234 |
437
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235 return conf; |
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236 } |
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237 |
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238 |
487 | 239 static char * |
240 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
216
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241 { |
485 | 242 ngx_http_rewrite_loc_conf_t *prev = parent; |
243 ngx_http_rewrite_loc_conf_t *conf = child; | |
244 | |
509 | 245 uintptr_t *code; |
485 | 246 |
247 ngx_conf_merge_value(conf->log, prev->log, 0); | |
635 | 248 ngx_conf_merge_value(conf->uninitialized_variable_warn, |
249 prev->uninitialized_variable_warn, 1); | |
663 | 250 ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10); |
485 | 251 |
252 if (conf->codes == NULL) { | |
253 return NGX_CONF_OK; | |
254 } | |
255 | |
256 if (conf->codes == prev->codes) { | |
257 return NGX_CONF_OK; | |
258 } | |
259 | |
501 | 260 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); |
261 if (code == NULL) { | |
216
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262 return NGX_CONF_ERROR; |
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263 } |
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264 |
485 | 265 *code = (uintptr_t) NULL; |
266 | |
267 return NGX_CONF_OK; | |
268 } | |
269 | |
216
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270 |
509 | 271 static ngx_int_t |
681 | 272 ngx_http_rewrite_init(ngx_conf_t *cf) |
577 | 273 { |
509 | 274 ngx_http_handler_pt *h; |
275 ngx_http_core_main_conf_t *cmcf; | |
276 | |
681 | 277 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
509 | 278 |
573 | 279 h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers); |
280 if (h == NULL) { | |
281 return NGX_ERROR; | |
282 } | |
283 | |
284 *h = ngx_http_rewrite_handler; | |
285 | |
509 | 286 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); |
287 if (h == NULL) { | |
288 return NGX_ERROR; | |
289 } | |
290 | |
291 *h = ngx_http_rewrite_handler; | |
292 | |
293 return NGX_OK; | |
577 | 294 } |
509 | 295 |
296 | |
487 | 297 static char * |
298 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 299 { |
577 | 300 ngx_http_rewrite_loc_conf_t *lcf = conf; |
301 | |
3325 | 302 ngx_str_t *value; |
509 | 303 ngx_uint_t last; |
3325 | 304 ngx_regex_compile_t rc; |
509 | 305 ngx_http_script_code_pt *code; |
306 ngx_http_script_compile_t sc; | |
307 ngx_http_script_regex_code_t *regex; | |
308 ngx_http_script_regex_end_code_t *regex_end; | |
309 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
485 | 310 |
509 | 311 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, |
312 sizeof(ngx_http_script_regex_code_t)); | |
485 | 313 if (regex == NULL) { |
314 return NGX_CONF_ERROR; | |
315 } | |
216
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316 |
509 | 317 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
318 | |
216
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319 value = cf->args->elts; |
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320 |
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321 if (value[2].len == 0) { |
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322 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "empty replacement"); |
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323 return NGX_CONF_ERROR; |
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324 } |
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325 |
3325 | 326 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
327 | |
328 rc.pattern = value[1]; | |
329 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
330 rc.err.data = errstr; | |
485 | 331 |
332 /* TODO: NGX_REGEX_CASELESS */ | |
333 | |
3325 | 334 regex->regex = ngx_http_regex_compile(cf, &rc); |
485 | 335 if (regex->regex == NULL) { |
336 return NGX_CONF_ERROR; | |
337 } | |
338 | |
509 | 339 regex->code = ngx_http_script_regex_start_code; |
485 | 340 regex->uri = 1; |
341 regex->name = value[1]; | |
216
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342 |
509 | 343 if (value[2].data[value[2].len - 1] == '?') { |
344 | |
345 /* the last "?" drops the original arguments */ | |
346 value[2].len--; | |
347 | |
348 } else { | |
349 regex->add_args = 1; | |
350 } | |
351 | |
485 | 352 last = 0; |
353 | |
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354 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0 |
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355 || ngx_strncmp(value[2].data, "https://", sizeof("https://") - 1) == 0 |
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356 || ngx_strncmp(value[2].data, "$scheme", sizeof("$scheme") - 1) == 0) |
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357 { |
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358 regex->status = NGX_HTTP_MOVED_TEMPORARILY; |
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359 regex->redirect = 1; |
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360 last = 1; |
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361 } |
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362 |
485 | 363 if (cf->args->nelts == 4) { |
364 if (ngx_strcmp(value[3].data, "last") == 0) { | |
365 last = 1; | |
216
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366 |
487 | 367 } else if (ngx_strcmp(value[3].data, "break") == 0) { |
368 regex->break_cycle = 1; | |
369 last = 1; | |
370 | |
485 | 371 } else if (ngx_strcmp(value[3].data, "redirect") == 0) { |
372 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
373 regex->redirect = 1; | |
374 last = 1; | |
326
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375 |
485 | 376 } else if (ngx_strcmp(value[3].data, "permanent") == 0) { |
377 regex->status = NGX_HTTP_MOVED_PERMANENTLY; | |
378 regex->redirect = 1; | |
379 last = 1; | |
326
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380 |
485 | 381 } else { |
326
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382 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
461 | 383 "invalid parameter \"%V\"", &value[3]); |
326
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384 return NGX_CONF_ERROR; |
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385 } |
485 | 386 } |
326
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387 |
509 | 388 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
485 | 389 |
509 | 390 sc.cf = cf; |
391 sc.source = &value[2]; | |
392 sc.lengths = ®ex->lengths; | |
393 sc.values = &lcf->codes; | |
394 sc.variables = ngx_http_script_variables_count(&value[2]); | |
395 sc.main = regex; | |
396 sc.complete_lengths = 1; | |
397 sc.compile_args = !regex->redirect; | |
485 | 398 |
509 | 399 if (ngx_http_script_compile(&sc) != NGX_OK) { |
400 return NGX_CONF_ERROR; | |
401 } | |
485 | 402 |
509 | 403 regex = sc.main; |
216
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404 |
509 | 405 regex->size = sc.size; |
406 regex->args = sc.args; | |
216
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407 |
641 | 408 if (sc.variables == 0 && !sc.dup_capture) { |
509 | 409 regex->lengths = NULL; |
485 | 410 } |
411 | |
509 | 412 regex_end = ngx_http_script_add_code(lcf->codes, |
413 sizeof(ngx_http_script_regex_end_code_t), | |
414 ®ex); | |
485 | 415 if (regex_end == NULL) { |
416 return NGX_CONF_ERROR; | |
417 } | |
418 | |
509 | 419 regex_end->code = ngx_http_script_regex_end_code; |
485 | 420 regex_end->uri = regex->uri; |
421 regex_end->args = regex->args; | |
509 | 422 regex_end->add_args = regex->add_args; |
485 | 423 regex_end->redirect = regex->redirect; |
424 | |
425 if (last) { | |
517 | 426 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); |
485 | 427 if (code == NULL) { |
428 return NGX_CONF_ERROR; | |
218
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429 } |
216
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430 |
3184 | 431 *code = NULL; |
485 | 432 } |
433 | |
434 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
435 - (u_char *) regex; | |
436 | |
437 return NGX_CONF_OK; | |
438 } | |
439 | |
440 | |
487 | 441 static char * |
442 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 443 { |
577 | 444 ngx_http_rewrite_loc_conf_t *lcf = conf; |
216
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445 |
3633 | 446 u_char *p; |
447 ngx_str_t *value, *v; | |
448 ngx_http_script_return_code_t *ret; | |
449 ngx_http_compile_complex_value_t ccv; | |
485 | 450 |
509 | 451 ret = ngx_http_script_start_code(cf->pool, &lcf->codes, |
452 sizeof(ngx_http_script_return_code_t)); | |
485 | 453 if (ret == NULL) { |
454 return NGX_CONF_ERROR; | |
455 } | |
456 | |
457 value = cf->args->elts; | |
458 | |
3633 | 459 ngx_memzero(ret, sizeof(ngx_http_script_return_code_t)); |
460 | |
509 | 461 ret->code = ngx_http_script_return_code; |
485 | 462 |
3633 | 463 p = value[1].data; |
464 | |
465 ret->status = ngx_atoi(p, value[1].len); | |
485 | 466 |
467 if (ret->status == (uintptr_t) NGX_ERROR) { | |
3633 | 468 |
469 if (cf->args->nelts == 2 | |
470 && (ngx_strncmp(p, "http://", sizeof("http://") - 1) == 0 | |
471 || ngx_strncmp(p, "https://", sizeof("https://") - 1) == 0 | |
472 || ngx_strncmp(p, "$scheme", sizeof("$scheme") - 1) == 0)) | |
473 { | |
474 ret->status = NGX_HTTP_MOVED_TEMPORARILY; | |
475 v = &value[1]; | |
476 | |
477 } else { | |
478 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
479 "invalid return code \"%V\"", &value[1]); | |
480 return NGX_CONF_ERROR; | |
481 } | |
482 | |
483 } else { | |
484 | |
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485 if (ret->status > 999) { |
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486 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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487 "invalid return code \"%V\"", &value[1]); |
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488 return NGX_CONF_ERROR; |
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489 } |
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490 |
3633 | 491 if (cf->args->nelts == 2) { |
492 return NGX_CONF_OK; | |
493 } | |
494 | |
495 v = &value[2]; | |
496 } | |
497 | |
498 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); | |
499 | |
500 ccv.cf = cf; | |
501 ccv.value = v; | |
502 ccv.complex_value = &ret->text; | |
503 | |
504 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { | |
485 | 505 return NGX_CONF_ERROR; |
216
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506 } |
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507 |
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508 return NGX_CONF_OK; |
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509 } |
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510 |
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511 |
487 | 512 static char * |
527 | 513 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
514 { | |
515 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
516 | |
517 ngx_http_script_code_pt *code; | |
518 | |
519 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); | |
520 if (code == NULL) { | |
521 return NGX_CONF_ERROR; | |
522 } | |
523 | |
524 *code = ngx_http_script_break_code; | |
525 | |
526 return NGX_CONF_OK; | |
527 } | |
528 | |
529 | |
530 static char * | |
487 | 531 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
437
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532 { |
577 | 533 ngx_http_rewrite_loc_conf_t *lcf = conf; |
485 | 534 |
535 void *mconf; | |
536 char *rv; | |
537 u_char *elts; | |
538 ngx_uint_t i; | |
539 ngx_conf_t save; | |
540 ngx_http_module_t *module; | |
541 ngx_http_conf_ctx_t *ctx, *pctx; | |
2027 | 542 ngx_http_core_loc_conf_t *clcf, *pclcf; |
509 | 543 ngx_http_script_if_code_t *if_code; |
485 | 544 ngx_http_rewrite_loc_conf_t *nlcf; |
545 | |
501 | 546 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
547 if (ctx == NULL) { | |
485 | 548 return NGX_CONF_ERROR; |
549 } | |
550 | |
551 pctx = cf->ctx; | |
552 ctx->main_conf = pctx->main_conf; | |
577 | 553 ctx->srv_conf = pctx->srv_conf; |
485 | 554 |
555 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
556 if (ctx->loc_conf == NULL) { | |
557 return NGX_CONF_ERROR; | |
558 } | |
559 | |
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560 for (i = 0; cf->cycle->modules[i]; i++) { |
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561 if (cf->cycle->modules[i]->type != NGX_HTTP_MODULE) { |
485 | 562 continue; |
563 } | |
564 | |
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changeset
|
565 module = cf->cycle->modules[i]->ctx; |
577 | 566 |
485 | 567 if (module->create_loc_conf) { |
568 | |
501 | 569 mconf = module->create_loc_conf(cf); |
570 if (mconf == NULL) { | |
6474 | 571 return NGX_CONF_ERROR; |
485 | 572 } |
573 | |
6379
cf5e822cf470
Dynamic modules: changed ngx_modules to cycle->modules.
Maxim Dounin <mdounin@mdounin.ru>
parents:
6244
diff
changeset
|
574 ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = mconf; |
485 | 575 } |
576 } | |
577 | |
578 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
579 | |
580 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
581 clcf->loc_conf = ctx->loc_conf; | |
582 clcf->name = pclcf->name; | |
583 clcf->noname = 1; | |
584 | |
2027 | 585 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { |
485 | 586 return NGX_CONF_ERROR; |
587 } | |
588 | |
501 | 589 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
485 | 590 return NGX_CONF_ERROR; |
591 } | |
592 | |
509 | 593 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); |
485 | 594 if (if_code == NULL) { |
3001 | 595 return NGX_CONF_ERROR; |
485 | 596 } |
597 | |
509 | 598 if_code->code = ngx_http_script_if_code; |
485 | 599 |
600 elts = lcf->codes->elts; | |
601 | |
602 | |
631 | 603 /* the inner directives must be compiled to the same code array */ |
485 | 604 |
605 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
606 nlcf->codes = lcf->codes; | |
607 | |
608 | |
609 save = *cf; | |
610 cf->ctx = ctx; | |
611 | |
6244
055d1f63960a
Fixed segfault with incorrect location nesting.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5816
diff
changeset
|
612 if (cf->cmd_type == NGX_HTTP_SRV_CONF) { |
485 | 613 if_code->loc_conf = NULL; |
614 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
615 | |
616 } else { | |
617 if_code->loc_conf = ctx->loc_conf; | |
618 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
619 } | |
620 | |
621 rv = ngx_conf_parse(cf, NULL); | |
622 | |
623 *cf = save; | |
624 | |
625 if (rv != NGX_CONF_OK) { | |
626 return rv; | |
627 } | |
628 | |
629 | |
630 if (elts != lcf->codes->elts) { | |
509 | 631 if_code = (ngx_http_script_if_code_t *) |
485 | 632 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); |
633 } | |
634 | |
635 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
636 - (u_char *) if_code; | |
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
637 |
555 | 638 /* the code array belong to parent block */ |
639 | |
640 nlcf->codes = NULL; | |
641 | |
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
642 return NGX_CONF_OK; |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
643 } |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
644 |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
645 |
487 | 646 static char * |
501 | 647 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
648 { | |
631 | 649 u_char *p; |
650 size_t len; | |
3325 | 651 ngx_str_t *value; |
652 ngx_uint_t cur, last; | |
653 ngx_regex_compile_t rc; | |
577 | 654 ngx_http_script_code_pt *code; |
631 | 655 ngx_http_script_file_code_t *fop; |
509 | 656 ngx_http_script_regex_code_t *regex; |
657 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
501 | 658 |
659 value = cf->args->elts; | |
660 last = cf->args->nelts - 1; | |
661 | |
662 if (value[1].len < 1 || value[1].data[0] != '(') { | |
663 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
664 "invalid condition \"%V\"", &value[1]); | |
665 return NGX_CONF_ERROR; | |
666 } | |
667 | |
668 if (value[1].len == 1) { | |
669 cur = 2; | |
670 | |
671 } else { | |
672 cur = 1; | |
673 value[1].len--; | |
674 value[1].data++; | |
675 } | |
676 | |
677 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
678 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
679 "invalid condition \"%V\"", &value[last]); | |
680 return NGX_CONF_ERROR; | |
681 } | |
682 | |
683 if (value[last].len == 1) { | |
684 last--; | |
685 | |
686 } else { | |
687 value[last].len--; | |
688 value[last].data[value[last].len] = '\0'; | |
689 } | |
690 | |
631 | 691 len = value[cur].len; |
692 p = value[cur].data; | |
693 | |
694 if (len > 1 && p[0] == '$') { | |
501 | 695 |
696 if (cur != last && cur + 2 != last) { | |
697 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
631 | 698 "invalid condition \"%V\"", &value[cur]); |
501 | 699 return NGX_CONF_ERROR; |
700 } | |
701 | |
577 | 702 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { |
501 | 703 return NGX_CONF_ERROR; |
704 } | |
705 | |
706 if (cur == last) { | |
707 return NGX_CONF_OK; | |
708 } | |
709 | |
710 cur++; | |
711 | |
631 | 712 len = value[cur].len; |
713 p = value[cur].data; | |
714 | |
715 if (len == 1 && p[0] == '=') { | |
577 | 716 |
717 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
718 return NGX_CONF_ERROR; | |
719 } | |
720 | |
721 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
722 sizeof(uintptr_t)); | |
723 if (code == NULL) { | |
724 return NGX_CONF_ERROR; | |
725 } | |
726 | |
727 *code = ngx_http_script_equal_code; | |
728 | |
729 return NGX_CONF_OK; | |
501 | 730 } |
731 | |
631 | 732 if (len == 2 && p[0] == '!' && p[1] == '=') { |
733 | |
577 | 734 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { |
735 return NGX_CONF_ERROR; | |
736 } | |
737 | |
738 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
739 sizeof(uintptr_t)); | |
740 if (code == NULL) { | |
741 return NGX_CONF_ERROR; | |
742 } | |
743 | |
744 *code = ngx_http_script_not_equal_code; | |
745 return NGX_CONF_OK; | |
501 | 746 } |
747 | |
631 | 748 if ((len == 1 && p[0] == '~') |
749 || (len == 2 && p[0] == '~' && p[1] == '*') | |
750 || (len == 2 && p[0] == '!' && p[1] == '~') | |
751 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) | |
577 | 752 { |
753 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
754 sizeof(ngx_http_script_regex_code_t)); | |
755 if (regex == NULL) { | |
756 return NGX_CONF_ERROR; | |
757 } | |
509 | 758 |
577 | 759 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
760 | |
3325 | 761 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
577 | 762 |
3325 | 763 rc.pattern = value[last]; |
764 rc.options = (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0; | |
765 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
766 rc.err.data = errstr; | |
501 | 767 |
3325 | 768 regex->regex = ngx_http_regex_compile(cf, &rc); |
577 | 769 if (regex->regex == NULL) { |
770 return NGX_CONF_ERROR; | |
771 } | |
772 | |
773 regex->code = ngx_http_script_regex_start_code; | |
774 regex->next = sizeof(ngx_http_script_regex_code_t); | |
775 regex->test = 1; | |
631 | 776 if (p[0] == '!') { |
777 regex->negative_test = 1; | |
778 } | |
577 | 779 regex->name = value[last]; |
501 | 780 |
577 | 781 return NGX_CONF_OK; |
501 | 782 } |
783 | |
577 | 784 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
785 "unexpected \"%V\" in condition", &value[cur]); | |
786 return NGX_CONF_ERROR; | |
631 | 787 |
788 } else if ((len == 2 && p[0] == '-') | |
789 || (len == 3 && p[0] == '!' && p[1] == '-')) | |
790 { | |
791 if (cur + 1 != last) { | |
792 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
793 "invalid condition \"%V\"", &value[cur]); | |
794 return NGX_CONF_ERROR; | |
795 } | |
796 | |
797 value[last].data[value[last].len] = '\0'; | |
798 value[last].len++; | |
799 | |
800 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
801 return NGX_CONF_ERROR; | |
802 } | |
803 | |
804 fop = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
805 sizeof(ngx_http_script_file_code_t)); | |
806 if (fop == NULL) { | |
807 return NGX_CONF_ERROR; | |
808 } | |
809 | |
810 fop->code = ngx_http_script_file_code; | |
811 | |
812 if (p[1] == 'f') { | |
813 fop->op = ngx_http_script_file_plain; | |
814 return NGX_CONF_OK; | |
815 } | |
816 | |
669 | 817 if (p[1] == 'd') { |
818 fop->op = ngx_http_script_file_dir; | |
819 return NGX_CONF_OK; | |
820 } | |
821 | |
822 if (p[1] == 'e') { | |
823 fop->op = ngx_http_script_file_exists; | |
824 return NGX_CONF_OK; | |
825 } | |
826 | |
827 if (p[1] == 'x') { | |
828 fop->op = ngx_http_script_file_exec; | |
829 return NGX_CONF_OK; | |
830 } | |
831 | |
631 | 832 if (p[0] == '!') { |
833 if (p[2] == 'f') { | |
834 fop->op = ngx_http_script_file_not_plain; | |
835 return NGX_CONF_OK; | |
836 } | |
669 | 837 |
838 if (p[2] == 'd') { | |
839 fop->op = ngx_http_script_file_not_dir; | |
840 return NGX_CONF_OK; | |
841 } | |
842 | |
843 if (p[2] == 'e') { | |
844 fop->op = ngx_http_script_file_not_exists; | |
845 return NGX_CONF_OK; | |
846 } | |
847 | |
848 if (p[2] == 'x') { | |
849 fop->op = ngx_http_script_file_not_exec; | |
850 return NGX_CONF_OK; | |
851 } | |
631 | 852 } |
853 | |
854 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
855 "invalid condition \"%V\"", &value[cur]); | |
856 return NGX_CONF_ERROR; | |
501 | 857 } |
858 | |
859 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
860 "invalid condition \"%V\"", &value[cur]); | |
861 | |
862 return NGX_CONF_ERROR; | |
863 } | |
864 | |
865 | |
866 static char * | |
867 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
868 ngx_str_t *value) | |
869 { | |
509 | 870 ngx_int_t index; |
871 ngx_http_script_var_code_t *var_code; | |
501 | 872 |
873 value->len--; | |
874 value->data++; | |
875 | |
577 | 876 index = ngx_http_get_variable_index(cf, value); |
501 | 877 |
577 | 878 if (index == NGX_ERROR) { |
879 return NGX_CONF_ERROR; | |
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
880 } |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
881 |
577 | 882 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, |
883 sizeof(ngx_http_script_var_code_t)); | |
884 if (var_code == NULL) { | |
885 return NGX_CONF_ERROR; | |
485 | 886 } |
887 | |
577 | 888 var_code->code = ngx_http_script_var_code; |
889 var_code->index = index; | |
485 | 890 |
891 return NGX_CONF_OK; | |
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
892 } |
485 | 893 |
894 | |
501 | 895 static char * |
896 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
897 { | |
577 | 898 ngx_http_rewrite_loc_conf_t *lcf = conf; |
501 | 899 |
637 | 900 ngx_int_t index; |
901 ngx_str_t *value; | |
902 ngx_http_variable_t *v; | |
903 ngx_http_script_var_code_t *vcode; | |
904 ngx_http_script_var_handler_code_t *vhcode; | |
501 | 905 |
906 value = cf->args->elts; | |
907 | |
4972
8b635cf36ccc
Added checks that disallow adding a variable with an empty name.
Ruslan Ermilov <ru@nginx.com>
parents:
4963
diff
changeset
|
908 if (value[1].data[0] != '$') { |
501 | 909 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
910 "invalid variable name \"%V\"", &value[1]); | |
911 return NGX_CONF_ERROR; | |
912 } | |
913 | |
914 value[1].len--; | |
915 value[1].data++; | |
916 | |
6899
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6474
diff
changeset
|
917 v = ngx_http_add_variable(cf, &value[1], |
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6474
diff
changeset
|
918 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_WEAK); |
501 | 919 if (v == NULL) { |
920 return NGX_CONF_ERROR; | |
921 } | |
922 | |
509 | 923 index = ngx_http_get_variable_index(cf, &value[1]); |
924 if (index == NGX_ERROR) { | |
925 return NGX_CONF_ERROR; | |
926 } | |
501 | 927 |
6899
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6474
diff
changeset
|
928 if (v->get_handler == NULL) { |
637 | 929 v->get_handler = ngx_http_rewrite_var; |
555 | 930 v->data = index; |
931 } | |
509 | 932 |
577 | 933 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { |
934 return NGX_CONF_ERROR; | |
515 | 935 } |
501 | 936 |
637 | 937 if (v->set_handler) { |
938 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
939 sizeof(ngx_http_script_var_handler_code_t)); | |
940 if (vhcode == NULL) { | |
941 return NGX_CONF_ERROR; | |
942 } | |
943 | |
944 vhcode->code = ngx_http_script_var_set_handler_code; | |
945 vhcode->handler = v->set_handler; | |
946 vhcode->data = v->data; | |
947 | |
948 return NGX_CONF_OK; | |
949 } | |
950 | |
951 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
952 sizeof(ngx_http_script_var_code_t)); | |
953 if (vcode == NULL) { | |
501 | 954 return NGX_CONF_ERROR; |
955 } | |
956 | |
637 | 957 vcode->code = ngx_http_script_set_var_code; |
958 vcode->index = (uintptr_t) index; | |
501 | 959 |
960 return NGX_CONF_OK; | |
961 } | |
577 | 962 |
963 | |
964 static char * | |
965 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
966 ngx_str_t *value) | |
967 { | |
968 ngx_int_t n; | |
969 ngx_http_script_compile_t sc; | |
970 ngx_http_script_value_code_t *val; | |
971 ngx_http_script_complex_value_code_t *complex; | |
972 | |
973 n = ngx_http_script_variables_count(value); | |
974 | |
975 if (n == 0) { | |
976 val = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
977 sizeof(ngx_http_script_value_code_t)); | |
978 if (val == NULL) { | |
979 return NGX_CONF_ERROR; | |
980 } | |
981 | |
982 n = ngx_atoi(value->data, value->len); | |
983 | |
984 if (n == NGX_ERROR) { | |
985 n = 0; | |
986 } | |
987 | |
988 val->code = ngx_http_script_value_code; | |
989 val->value = (uintptr_t) n; | |
990 val->text_len = (uintptr_t) value->len; | |
991 val->text_data = (uintptr_t) value->data; | |
992 | |
993 return NGX_CONF_OK; | |
994 } | |
995 | |
996 complex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
997 sizeof(ngx_http_script_complex_value_code_t)); | |
998 if (complex == NULL) { | |
999 return NGX_CONF_ERROR; | |
1000 } | |
1001 | |
1002 complex->code = ngx_http_script_complex_value_code; | |
1003 complex->lengths = NULL; | |
1004 | |
1005 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
1006 | |
1007 sc.cf = cf; | |
1008 sc.source = value; | |
1009 sc.lengths = &complex->lengths; | |
1010 sc.values = &lcf->codes; | |
1011 sc.variables = n; | |
1012 sc.complete_lengths = 1; | |
1013 | |
1014 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
1015 return NGX_CONF_ERROR; | |
1016 } | |
1017 | |
1018 return NGX_CONF_OK; | |
1019 } |