Mercurial > hg > nginx-quic
annotate src/http/modules/ngx_http_rewrite_module.c @ 7533:5f642712e7ad
Perl: named locations in $r->internal_redirect().
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Fri, 12 Jul 2019 15:39:28 +0300 |
parents | b64adc956643 |
children | db8df9cd84c8 |
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); | |
437
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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), | |
325
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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 | |
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319 value = cf->args->elts; |
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320 |
3325 | 321 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
322 | |
323 rc.pattern = value[1]; | |
324 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
325 rc.err.data = errstr; | |
485 | 326 |
327 /* TODO: NGX_REGEX_CASELESS */ | |
328 | |
3325 | 329 regex->regex = ngx_http_regex_compile(cf, &rc); |
485 | 330 if (regex->regex == NULL) { |
331 return NGX_CONF_ERROR; | |
332 } | |
333 | |
509 | 334 regex->code = ngx_http_script_regex_start_code; |
485 | 335 regex->uri = 1; |
336 regex->name = value[1]; | |
216
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337 |
509 | 338 if (value[2].data[value[2].len - 1] == '?') { |
339 | |
340 /* the last "?" drops the original arguments */ | |
341 value[2].len--; | |
342 | |
343 } else { | |
344 regex->add_args = 1; | |
345 } | |
346 | |
485 | 347 last = 0; |
348 | |
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349 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0 |
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350 || ngx_strncmp(value[2].data, "https://", sizeof("https://") - 1) == 0 |
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351 || ngx_strncmp(value[2].data, "$scheme", sizeof("$scheme") - 1) == 0) |
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352 { |
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353 regex->status = NGX_HTTP_MOVED_TEMPORARILY; |
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354 regex->redirect = 1; |
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355 last = 1; |
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356 } |
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357 |
485 | 358 if (cf->args->nelts == 4) { |
359 if (ngx_strcmp(value[3].data, "last") == 0) { | |
360 last = 1; | |
216
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361 |
487 | 362 } else if (ngx_strcmp(value[3].data, "break") == 0) { |
363 regex->break_cycle = 1; | |
364 last = 1; | |
365 | |
485 | 366 } else if (ngx_strcmp(value[3].data, "redirect") == 0) { |
367 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
368 regex->redirect = 1; | |
369 last = 1; | |
326
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370 |
485 | 371 } else if (ngx_strcmp(value[3].data, "permanent") == 0) { |
372 regex->status = NGX_HTTP_MOVED_PERMANENTLY; | |
373 regex->redirect = 1; | |
374 last = 1; | |
326
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375 |
485 | 376 } else { |
326
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377 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
461 | 378 "invalid parameter \"%V\"", &value[3]); |
326
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379 return NGX_CONF_ERROR; |
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380 } |
485 | 381 } |
326
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382 |
509 | 383 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
485 | 384 |
509 | 385 sc.cf = cf; |
386 sc.source = &value[2]; | |
387 sc.lengths = ®ex->lengths; | |
388 sc.values = &lcf->codes; | |
389 sc.variables = ngx_http_script_variables_count(&value[2]); | |
390 sc.main = regex; | |
391 sc.complete_lengths = 1; | |
392 sc.compile_args = !regex->redirect; | |
485 | 393 |
509 | 394 if (ngx_http_script_compile(&sc) != NGX_OK) { |
395 return NGX_CONF_ERROR; | |
396 } | |
485 | 397 |
509 | 398 regex = sc.main; |
216
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399 |
509 | 400 regex->size = sc.size; |
401 regex->args = sc.args; | |
216
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402 |
641 | 403 if (sc.variables == 0 && !sc.dup_capture) { |
509 | 404 regex->lengths = NULL; |
485 | 405 } |
406 | |
509 | 407 regex_end = ngx_http_script_add_code(lcf->codes, |
408 sizeof(ngx_http_script_regex_end_code_t), | |
409 ®ex); | |
485 | 410 if (regex_end == NULL) { |
411 return NGX_CONF_ERROR; | |
412 } | |
413 | |
509 | 414 regex_end->code = ngx_http_script_regex_end_code; |
485 | 415 regex_end->uri = regex->uri; |
416 regex_end->args = regex->args; | |
509 | 417 regex_end->add_args = regex->add_args; |
485 | 418 regex_end->redirect = regex->redirect; |
419 | |
420 if (last) { | |
517 | 421 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); |
485 | 422 if (code == NULL) { |
423 return NGX_CONF_ERROR; | |
218
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424 } |
216
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425 |
3184 | 426 *code = NULL; |
485 | 427 } |
428 | |
429 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
430 - (u_char *) regex; | |
431 | |
432 return NGX_CONF_OK; | |
433 } | |
434 | |
435 | |
487 | 436 static char * |
437 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 438 { |
577 | 439 ngx_http_rewrite_loc_conf_t *lcf = conf; |
216
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440 |
3633 | 441 u_char *p; |
442 ngx_str_t *value, *v; | |
443 ngx_http_script_return_code_t *ret; | |
444 ngx_http_compile_complex_value_t ccv; | |
485 | 445 |
509 | 446 ret = ngx_http_script_start_code(cf->pool, &lcf->codes, |
447 sizeof(ngx_http_script_return_code_t)); | |
485 | 448 if (ret == NULL) { |
449 return NGX_CONF_ERROR; | |
450 } | |
451 | |
452 value = cf->args->elts; | |
453 | |
3633 | 454 ngx_memzero(ret, sizeof(ngx_http_script_return_code_t)); |
455 | |
509 | 456 ret->code = ngx_http_script_return_code; |
485 | 457 |
3633 | 458 p = value[1].data; |
459 | |
460 ret->status = ngx_atoi(p, value[1].len); | |
485 | 461 |
462 if (ret->status == (uintptr_t) NGX_ERROR) { | |
3633 | 463 |
464 if (cf->args->nelts == 2 | |
465 && (ngx_strncmp(p, "http://", sizeof("http://") - 1) == 0 | |
466 || ngx_strncmp(p, "https://", sizeof("https://") - 1) == 0 | |
467 || ngx_strncmp(p, "$scheme", sizeof("$scheme") - 1) == 0)) | |
468 { | |
469 ret->status = NGX_HTTP_MOVED_TEMPORARILY; | |
470 v = &value[1]; | |
471 | |
472 } else { | |
473 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
474 "invalid return code \"%V\"", &value[1]); | |
475 return NGX_CONF_ERROR; | |
476 } | |
477 | |
478 } else { | |
479 | |
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480 if (ret->status > 999) { |
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481 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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482 "invalid return code \"%V\"", &value[1]); |
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483 return NGX_CONF_ERROR; |
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484 } |
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485 |
3633 | 486 if (cf->args->nelts == 2) { |
487 return NGX_CONF_OK; | |
488 } | |
489 | |
490 v = &value[2]; | |
491 } | |
492 | |
493 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); | |
494 | |
495 ccv.cf = cf; | |
496 ccv.value = v; | |
497 ccv.complex_value = &ret->text; | |
498 | |
499 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { | |
485 | 500 return NGX_CONF_ERROR; |
216
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501 } |
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502 |
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503 return NGX_CONF_OK; |
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504 } |
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505 |
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506 |
487 | 507 static char * |
527 | 508 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
509 { | |
510 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
511 | |
512 ngx_http_script_code_pt *code; | |
513 | |
514 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); | |
515 if (code == NULL) { | |
516 return NGX_CONF_ERROR; | |
517 } | |
518 | |
519 *code = ngx_http_script_break_code; | |
520 | |
521 return NGX_CONF_OK; | |
522 } | |
523 | |
524 | |
525 static char * | |
487 | 526 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
437
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527 { |
577 | 528 ngx_http_rewrite_loc_conf_t *lcf = conf; |
485 | 529 |
530 void *mconf; | |
531 char *rv; | |
532 u_char *elts; | |
533 ngx_uint_t i; | |
534 ngx_conf_t save; | |
535 ngx_http_module_t *module; | |
536 ngx_http_conf_ctx_t *ctx, *pctx; | |
2027 | 537 ngx_http_core_loc_conf_t *clcf, *pclcf; |
509 | 538 ngx_http_script_if_code_t *if_code; |
485 | 539 ngx_http_rewrite_loc_conf_t *nlcf; |
540 | |
501 | 541 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
542 if (ctx == NULL) { | |
485 | 543 return NGX_CONF_ERROR; |
544 } | |
545 | |
546 pctx = cf->ctx; | |
547 ctx->main_conf = pctx->main_conf; | |
577 | 548 ctx->srv_conf = pctx->srv_conf; |
485 | 549 |
550 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
551 if (ctx->loc_conf == NULL) { | |
552 return NGX_CONF_ERROR; | |
553 } | |
554 | |
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555 for (i = 0; cf->cycle->modules[i]; i++) { |
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Dynamic modules: changed ngx_modules to cycle->modules.
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556 if (cf->cycle->modules[i]->type != NGX_HTTP_MODULE) { |
485 | 557 continue; |
558 } | |
559 | |
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560 module = cf->cycle->modules[i]->ctx; |
577 | 561 |
485 | 562 if (module->create_loc_conf) { |
563 | |
501 | 564 mconf = module->create_loc_conf(cf); |
565 if (mconf == NULL) { | |
6474 | 566 return NGX_CONF_ERROR; |
485 | 567 } |
568 | |
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569 ctx->loc_conf[cf->cycle->modules[i]->ctx_index] = mconf; |
485 | 570 } |
571 } | |
572 | |
573 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
574 | |
575 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
576 clcf->loc_conf = ctx->loc_conf; | |
577 clcf->name = pclcf->name; | |
578 clcf->noname = 1; | |
579 | |
2027 | 580 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { |
485 | 581 return NGX_CONF_ERROR; |
582 } | |
583 | |
501 | 584 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
485 | 585 return NGX_CONF_ERROR; |
586 } | |
587 | |
509 | 588 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); |
485 | 589 if (if_code == NULL) { |
3001 | 590 return NGX_CONF_ERROR; |
485 | 591 } |
592 | |
509 | 593 if_code->code = ngx_http_script_if_code; |
485 | 594 |
595 elts = lcf->codes->elts; | |
596 | |
597 | |
631 | 598 /* the inner directives must be compiled to the same code array */ |
485 | 599 |
600 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
601 nlcf->codes = lcf->codes; | |
602 | |
603 | |
604 save = *cf; | |
605 cf->ctx = ctx; | |
606 | |
6244
055d1f63960a
Fixed segfault with incorrect location nesting.
Maxim Dounin <mdounin@mdounin.ru>
parents:
5816
diff
changeset
|
607 if (cf->cmd_type == NGX_HTTP_SRV_CONF) { |
485 | 608 if_code->loc_conf = NULL; |
609 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
610 | |
611 } else { | |
612 if_code->loc_conf = ctx->loc_conf; | |
613 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
614 } | |
615 | |
616 rv = ngx_conf_parse(cf, NULL); | |
617 | |
618 *cf = save; | |
619 | |
620 if (rv != NGX_CONF_OK) { | |
621 return rv; | |
622 } | |
623 | |
624 | |
625 if (elts != lcf->codes->elts) { | |
509 | 626 if_code = (ngx_http_script_if_code_t *) |
485 | 627 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); |
628 } | |
629 | |
630 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
631 - (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
|
632 |
555 | 633 /* the code array belong to parent block */ |
634 | |
635 nlcf->codes = NULL; | |
636 | |
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
637 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
|
638 } |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
639 |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
640 |
487 | 641 static char * |
501 | 642 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
643 { | |
631 | 644 u_char *p; |
645 size_t len; | |
3325 | 646 ngx_str_t *value; |
647 ngx_uint_t cur, last; | |
648 ngx_regex_compile_t rc; | |
577 | 649 ngx_http_script_code_pt *code; |
631 | 650 ngx_http_script_file_code_t *fop; |
509 | 651 ngx_http_script_regex_code_t *regex; |
652 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
501 | 653 |
654 value = cf->args->elts; | |
655 last = cf->args->nelts - 1; | |
656 | |
657 if (value[1].len < 1 || value[1].data[0] != '(') { | |
658 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
659 "invalid condition \"%V\"", &value[1]); | |
660 return NGX_CONF_ERROR; | |
661 } | |
662 | |
663 if (value[1].len == 1) { | |
664 cur = 2; | |
665 | |
666 } else { | |
667 cur = 1; | |
668 value[1].len--; | |
669 value[1].data++; | |
670 } | |
671 | |
672 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
673 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
674 "invalid condition \"%V\"", &value[last]); | |
675 return NGX_CONF_ERROR; | |
676 } | |
677 | |
678 if (value[last].len == 1) { | |
679 last--; | |
680 | |
681 } else { | |
682 value[last].len--; | |
683 value[last].data[value[last].len] = '\0'; | |
684 } | |
685 | |
631 | 686 len = value[cur].len; |
687 p = value[cur].data; | |
688 | |
689 if (len > 1 && p[0] == '$') { | |
501 | 690 |
691 if (cur != last && cur + 2 != last) { | |
692 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
631 | 693 "invalid condition \"%V\"", &value[cur]); |
501 | 694 return NGX_CONF_ERROR; |
695 } | |
696 | |
577 | 697 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { |
501 | 698 return NGX_CONF_ERROR; |
699 } | |
700 | |
701 if (cur == last) { | |
702 return NGX_CONF_OK; | |
703 } | |
704 | |
705 cur++; | |
706 | |
631 | 707 len = value[cur].len; |
708 p = value[cur].data; | |
709 | |
710 if (len == 1 && p[0] == '=') { | |
577 | 711 |
712 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
713 return NGX_CONF_ERROR; | |
714 } | |
715 | |
716 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
717 sizeof(uintptr_t)); | |
718 if (code == NULL) { | |
719 return NGX_CONF_ERROR; | |
720 } | |
721 | |
722 *code = ngx_http_script_equal_code; | |
723 | |
724 return NGX_CONF_OK; | |
501 | 725 } |
726 | |
631 | 727 if (len == 2 && p[0] == '!' && p[1] == '=') { |
728 | |
577 | 729 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { |
730 return NGX_CONF_ERROR; | |
731 } | |
732 | |
733 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
734 sizeof(uintptr_t)); | |
735 if (code == NULL) { | |
736 return NGX_CONF_ERROR; | |
737 } | |
738 | |
739 *code = ngx_http_script_not_equal_code; | |
740 return NGX_CONF_OK; | |
501 | 741 } |
742 | |
631 | 743 if ((len == 1 && p[0] == '~') |
744 || (len == 2 && p[0] == '~' && p[1] == '*') | |
745 || (len == 2 && p[0] == '!' && p[1] == '~') | |
746 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) | |
577 | 747 { |
748 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
749 sizeof(ngx_http_script_regex_code_t)); | |
750 if (regex == NULL) { | |
751 return NGX_CONF_ERROR; | |
752 } | |
509 | 753 |
577 | 754 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
755 | |
3325 | 756 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
577 | 757 |
3325 | 758 rc.pattern = value[last]; |
759 rc.options = (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0; | |
760 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
761 rc.err.data = errstr; | |
501 | 762 |
3325 | 763 regex->regex = ngx_http_regex_compile(cf, &rc); |
577 | 764 if (regex->regex == NULL) { |
765 return NGX_CONF_ERROR; | |
766 } | |
767 | |
768 regex->code = ngx_http_script_regex_start_code; | |
769 regex->next = sizeof(ngx_http_script_regex_code_t); | |
770 regex->test = 1; | |
631 | 771 if (p[0] == '!') { |
772 regex->negative_test = 1; | |
773 } | |
577 | 774 regex->name = value[last]; |
501 | 775 |
577 | 776 return NGX_CONF_OK; |
501 | 777 } |
778 | |
577 | 779 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
780 "unexpected \"%V\" in condition", &value[cur]); | |
781 return NGX_CONF_ERROR; | |
631 | 782 |
783 } else if ((len == 2 && p[0] == '-') | |
784 || (len == 3 && p[0] == '!' && p[1] == '-')) | |
785 { | |
786 if (cur + 1 != last) { | |
787 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
788 "invalid condition \"%V\"", &value[cur]); | |
789 return NGX_CONF_ERROR; | |
790 } | |
791 | |
792 value[last].data[value[last].len] = '\0'; | |
793 value[last].len++; | |
794 | |
795 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
796 return NGX_CONF_ERROR; | |
797 } | |
798 | |
799 fop = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
800 sizeof(ngx_http_script_file_code_t)); | |
801 if (fop == NULL) { | |
802 return NGX_CONF_ERROR; | |
803 } | |
804 | |
805 fop->code = ngx_http_script_file_code; | |
806 | |
807 if (p[1] == 'f') { | |
808 fop->op = ngx_http_script_file_plain; | |
809 return NGX_CONF_OK; | |
810 } | |
811 | |
669 | 812 if (p[1] == 'd') { |
813 fop->op = ngx_http_script_file_dir; | |
814 return NGX_CONF_OK; | |
815 } | |
816 | |
817 if (p[1] == 'e') { | |
818 fop->op = ngx_http_script_file_exists; | |
819 return NGX_CONF_OK; | |
820 } | |
821 | |
822 if (p[1] == 'x') { | |
823 fop->op = ngx_http_script_file_exec; | |
824 return NGX_CONF_OK; | |
825 } | |
826 | |
631 | 827 if (p[0] == '!') { |
828 if (p[2] == 'f') { | |
829 fop->op = ngx_http_script_file_not_plain; | |
830 return NGX_CONF_OK; | |
831 } | |
669 | 832 |
833 if (p[2] == 'd') { | |
834 fop->op = ngx_http_script_file_not_dir; | |
835 return NGX_CONF_OK; | |
836 } | |
837 | |
838 if (p[2] == 'e') { | |
839 fop->op = ngx_http_script_file_not_exists; | |
840 return NGX_CONF_OK; | |
841 } | |
842 | |
843 if (p[2] == 'x') { | |
844 fop->op = ngx_http_script_file_not_exec; | |
845 return NGX_CONF_OK; | |
846 } | |
631 | 847 } |
848 | |
849 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
850 "invalid condition \"%V\"", &value[cur]); | |
851 return NGX_CONF_ERROR; | |
501 | 852 } |
853 | |
854 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
855 "invalid condition \"%V\"", &value[cur]); | |
856 | |
857 return NGX_CONF_ERROR; | |
858 } | |
859 | |
860 | |
861 static char * | |
862 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
863 ngx_str_t *value) | |
864 { | |
509 | 865 ngx_int_t index; |
866 ngx_http_script_var_code_t *var_code; | |
501 | 867 |
868 value->len--; | |
869 value->data++; | |
870 | |
577 | 871 index = ngx_http_get_variable_index(cf, value); |
501 | 872 |
577 | 873 if (index == NGX_ERROR) { |
874 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
|
875 } |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
876 |
577 | 877 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, |
878 sizeof(ngx_http_script_var_code_t)); | |
879 if (var_code == NULL) { | |
880 return NGX_CONF_ERROR; | |
485 | 881 } |
882 | |
577 | 883 var_code->code = ngx_http_script_var_code; |
884 var_code->index = index; | |
485 | 885 |
886 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
|
887 } |
485 | 888 |
889 | |
501 | 890 static char * |
891 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
892 { | |
577 | 893 ngx_http_rewrite_loc_conf_t *lcf = conf; |
501 | 894 |
637 | 895 ngx_int_t index; |
896 ngx_str_t *value; | |
897 ngx_http_variable_t *v; | |
898 ngx_http_script_var_code_t *vcode; | |
899 ngx_http_script_var_handler_code_t *vhcode; | |
501 | 900 |
901 value = cf->args->elts; | |
902 | |
4972
8b635cf36ccc
Added checks that disallow adding a variable with an empty name.
Ruslan Ermilov <ru@nginx.com>
parents:
4963
diff
changeset
|
903 if (value[1].data[0] != '$') { |
501 | 904 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
905 "invalid variable name \"%V\"", &value[1]); | |
906 return NGX_CONF_ERROR; | |
907 } | |
908 | |
909 value[1].len--; | |
910 value[1].data++; | |
911 | |
6899
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6474
diff
changeset
|
912 v = ngx_http_add_variable(cf, &value[1], |
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6474
diff
changeset
|
913 NGX_HTTP_VAR_CHANGEABLE|NGX_HTTP_VAR_WEAK); |
501 | 914 if (v == NULL) { |
915 return NGX_CONF_ERROR; | |
916 } | |
917 | |
509 | 918 index = ngx_http_get_variable_index(cf, &value[1]); |
919 if (index == NGX_ERROR) { | |
920 return NGX_CONF_ERROR; | |
921 } | |
501 | 922 |
6899
d2b2ff157da5
Variables: generic prefix variables.
Dmitry Volyntsev <xeioex@nginx.com>
parents:
6474
diff
changeset
|
923 if (v->get_handler == NULL) { |
637 | 924 v->get_handler = ngx_http_rewrite_var; |
555 | 925 v->data = index; |
926 } | |
509 | 927 |
577 | 928 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { |
929 return NGX_CONF_ERROR; | |
515 | 930 } |
501 | 931 |
637 | 932 if (v->set_handler) { |
933 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
934 sizeof(ngx_http_script_var_handler_code_t)); | |
935 if (vhcode == NULL) { | |
936 return NGX_CONF_ERROR; | |
937 } | |
938 | |
939 vhcode->code = ngx_http_script_var_set_handler_code; | |
940 vhcode->handler = v->set_handler; | |
941 vhcode->data = v->data; | |
942 | |
943 return NGX_CONF_OK; | |
944 } | |
945 | |
946 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
947 sizeof(ngx_http_script_var_code_t)); | |
948 if (vcode == NULL) { | |
501 | 949 return NGX_CONF_ERROR; |
950 } | |
951 | |
637 | 952 vcode->code = ngx_http_script_set_var_code; |
953 vcode->index = (uintptr_t) index; | |
501 | 954 |
955 return NGX_CONF_OK; | |
956 } | |
577 | 957 |
958 | |
959 static char * | |
960 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
961 ngx_str_t *value) | |
962 { | |
963 ngx_int_t n; | |
964 ngx_http_script_compile_t sc; | |
965 ngx_http_script_value_code_t *val; | |
966 ngx_http_script_complex_value_code_t *complex; | |
967 | |
968 n = ngx_http_script_variables_count(value); | |
969 | |
970 if (n == 0) { | |
971 val = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
972 sizeof(ngx_http_script_value_code_t)); | |
973 if (val == NULL) { | |
974 return NGX_CONF_ERROR; | |
975 } | |
976 | |
977 n = ngx_atoi(value->data, value->len); | |
978 | |
979 if (n == NGX_ERROR) { | |
980 n = 0; | |
981 } | |
982 | |
983 val->code = ngx_http_script_value_code; | |
984 val->value = (uintptr_t) n; | |
985 val->text_len = (uintptr_t) value->len; | |
986 val->text_data = (uintptr_t) value->data; | |
987 | |
988 return NGX_CONF_OK; | |
989 } | |
990 | |
991 complex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
992 sizeof(ngx_http_script_complex_value_code_t)); | |
993 if (complex == NULL) { | |
994 return NGX_CONF_ERROR; | |
995 } | |
996 | |
997 complex->code = ngx_http_script_complex_value_code; | |
998 complex->lengths = NULL; | |
999 | |
1000 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
1001 | |
1002 sc.cf = cf; | |
1003 sc.source = value; | |
1004 sc.lengths = &complex->lengths; | |
1005 sc.values = &lcf->codes; | |
1006 sc.variables = n; | |
1007 sc.complete_lengths = 1; | |
1008 | |
1009 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
1010 return NGX_CONF_ERROR; | |
1011 } | |
1012 | |
1013 return NGX_CONF_OK; | |
1014 } |