Mercurial > hg > nginx
annotate src/http/modules/ngx_http_rewrite_module.c @ 3325:42c16d8bddbe
regex named captures
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 16 Nov 2009 12:19:02 +0000 |
| parents | 88f972ffe96e |
| children | ca24774c16e3 |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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11 |
| 485 | 12 typedef struct { |
| 577 | 13 ngx_array_t *codes; /* uintptr_t */ |
| 485 | 14 |
| 577 | 15 ngx_uint_t stack_size; |
| 485 | 16 |
| 577 | 17 ngx_flag_t log; |
| 635 | 18 ngx_flag_t uninitialized_variable_warn; |
| 485 | 19 } ngx_http_rewrite_loc_conf_t; |
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21 |
| 485 | 22 static void *ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf); |
| 23 static char *ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, | |
| 487 | 24 void *parent, void *child); |
| 681 | 25 static ngx_int_t ngx_http_rewrite_init(ngx_conf_t *cf); |
| 485 | 26 static char *ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| 27 static char *ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 487 | 28 void *conf); |
| 527 | 29 static char *ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, |
| 30 void *conf); | |
| 485 | 31 static char *ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, |
| 487 | 32 void *conf); |
| 501 | 33 static char * ngx_http_rewrite_if_condition(ngx_conf_t *cf, |
| 34 ngx_http_rewrite_loc_conf_t *lcf); | |
| 35 static char *ngx_http_rewrite_variable(ngx_conf_t *cf, | |
| 36 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
| 509 | 37 static char *ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, |
| 501 | 38 void *conf); |
| 577 | 39 static char * ngx_http_rewrite_value(ngx_conf_t *cf, |
| 40 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
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43 static ngx_command_t ngx_http_rewrite_commands[] = { |
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45 { ngx_string("rewrite"), |
| 485 | 46 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
| 47 |NGX_CONF_TAKE23, | |
| 48 ngx_http_rewrite, | |
| 49 NGX_HTTP_LOC_CONF_OFFSET, | |
| 50 0, | |
| 51 NULL }, | |
| 52 | |
| 53 { ngx_string("return"), | |
| 54 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
| 55 |NGX_CONF_TAKE1, | |
| 56 ngx_http_rewrite_return, | |
| 57 NGX_HTTP_LOC_CONF_OFFSET, | |
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58 0, |
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59 NULL }, |
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60 |
| 527 | 61 { ngx_string("break"), |
| 62 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
| 63 |NGX_CONF_NOARGS, | |
| 64 ngx_http_rewrite_break, | |
| 65 NGX_HTTP_LOC_CONF_OFFSET, | |
| 66 0, | |
| 67 NULL }, | |
| 68 | |
| 485 | 69 { ngx_string("if"), |
| 70 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE, | |
| 71 ngx_http_rewrite_if, | |
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72 NGX_HTTP_LOC_CONF_OFFSET, |
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73 0, |
| 485 | 74 NULL }, |
| 75 | |
| 501 | 76 { ngx_string("set"), |
| 77 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
| 78 |NGX_CONF_TAKE2, | |
| 79 ngx_http_rewrite_set, | |
| 80 NGX_HTTP_LOC_CONF_OFFSET, | |
| 81 0, | |
| 82 NULL }, | |
| 83 | |
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84 { ngx_string("rewrite_log"), |
| 635 | 85 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF |
| 86 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
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87 ngx_conf_set_flag_slot, |
| 485 | 88 NGX_HTTP_LOC_CONF_OFFSET, |
| 89 offsetof(ngx_http_rewrite_loc_conf_t, log), | |
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90 NULL }, |
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91 |
| 635 | 92 { ngx_string("uninitialized_variable_warn"), |
| 93 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF | |
| 94 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
| 95 ngx_conf_set_flag_slot, | |
| 96 NGX_HTTP_LOC_CONF_OFFSET, | |
| 97 offsetof(ngx_http_rewrite_loc_conf_t, uninitialized_variable_warn), | |
| 98 NULL }, | |
| 99 | |
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100 ngx_null_command |
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101 }; |
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102 |
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103 |
| 667 | 104 static ngx_http_module_t ngx_http_rewrite_module_ctx = { |
| 509 | 105 NULL, /* preconfiguration */ |
| 681 | 106 ngx_http_rewrite_init, /* postconfiguration */ |
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107 |
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108 NULL, /* create main configuration */ |
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109 NULL, /* init main configuration */ |
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110 |
| 485 | 111 NULL, /* create server configuration */ |
| 112 NULL, /* merge server configuration */ | |
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113 |
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114 ngx_http_rewrite_create_loc_conf, /* create location configration */ |
| 485 | 115 ngx_http_rewrite_merge_loc_conf /* merge location configration */ |
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116 }; |
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117 |
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118 |
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119 ngx_module_t ngx_http_rewrite_module = { |
| 509 | 120 NGX_MODULE_V1, |
| 577 | 121 &ngx_http_rewrite_module_ctx, /* module context */ |
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122 ngx_http_rewrite_commands, /* module directives */ |
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123 NGX_HTTP_MODULE, /* module type */ |
| 541 | 124 NULL, /* init master */ |
| 681 | 125 NULL, /* init module */ |
| 541 | 126 NULL, /* init process */ |
| 127 NULL, /* init thread */ | |
| 128 NULL, /* exit thread */ | |
| 129 NULL, /* exit process */ | |
| 130 NULL, /* exit master */ | |
| 131 NGX_MODULE_V1_PADDING | |
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132 }; |
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133 |
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134 |
| 487 | 135 static ngx_int_t |
| 136 ngx_http_rewrite_handler(ngx_http_request_t *r) | |
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137 { |
| 509 | 138 ngx_http_script_code_pt code; |
| 139 ngx_http_script_engine_t *e; | |
| 635 | 140 ngx_http_rewrite_loc_conf_t *rlcf; |
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141 |
| 635 | 142 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); |
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143 |
| 635 | 144 if (rlcf->codes == NULL) { |
| 485 | 145 return NGX_DECLINED; |
| 146 } | |
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147 |
| 509 | 148 e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t)); |
| 501 | 149 if (e == NULL) { |
| 485 | 150 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 151 } | |
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152 |
| 509 | 153 e->sp = ngx_pcalloc(r->pool, |
| 635 | 154 rlcf->stack_size * sizeof(ngx_http_variable_value_t)); |
| 485 | 155 if (e->sp == NULL) { |
| 156 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 157 } | |
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158 |
| 635 | 159 e->ip = rlcf->codes->elts; |
| 509 | 160 e->request = r; |
| 485 | 161 e->quote = 1; |
| 635 | 162 e->log = rlcf->log; |
| 485 | 163 e->status = NGX_DECLINED; |
| 164 | |
| 165 while (*(uintptr_t *) e->ip) { | |
| 509 | 166 code = *(ngx_http_script_code_pt *) e->ip; |
| 485 | 167 code(e); |
| 168 } | |
| 169 | |
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170 if (e->status == NGX_DECLINED) { |
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171 return NGX_DECLINED; |
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172 } |
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173 |
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174 if (r->err_status == 0) { |
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175 return e->status; |
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176 } |
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177 |
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178 return r->err_status; |
| 485 | 179 } |
| 180 | |
| 181 | |
| 573 | 182 static ngx_int_t |
| 183 ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 184 uintptr_t data) | |
| 501 | 185 { |
| 635 | 186 ngx_http_variable_t *var; |
| 187 ngx_http_core_main_conf_t *cmcf; | |
| 188 ngx_http_rewrite_loc_conf_t *rlcf; | |
| 189 | |
| 190 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); | |
| 191 | |
| 192 if (rlcf->uninitialized_variable_warn == 0) { | |
| 193 *v = ngx_http_variable_null_value; | |
| 194 return NGX_OK; | |
| 195 } | |
| 501 | 196 |
| 197 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
| 198 | |
| 199 var = cmcf->variables.elts; | |
| 200 | |
| 201 /* | |
| 202 * the ngx_http_rewrite_module sets variables directly in r->variables, | |
| 519 | 203 * and they should be handled by ngx_http_get_indexed_variable(), |
| 501 | 204 * so the handler is called only if the variable is not initialized |
| 205 */ | |
| 206 | |
| 635 | 207 ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
| 501 | 208 "using uninitialized \"%V\" variable", &var[data].name); |
| 209 | |
| 577 | 210 *v = ngx_http_variable_null_value; |
| 573 | 211 |
| 212 return NGX_OK; | |
| 501 | 213 } |
| 214 | |
| 215 | |
| 487 | 216 static void * |
| 217 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) | |
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218 { |
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219 ngx_http_rewrite_loc_conf_t *conf; |
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220 |
| 501 | 221 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); |
| 222 if (conf == NULL) { | |
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223 return NULL; |
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224 } |
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225 |
| 485 | 226 conf->stack_size = NGX_CONF_UNSET_UINT; |
| 227 conf->log = NGX_CONF_UNSET; | |
| 635 | 228 conf->uninitialized_variable_warn = NGX_CONF_UNSET; |
| 485 | 229 |
|
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230 return conf; |
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231 } |
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232 |
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233 |
| 487 | 234 static char * |
| 235 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
|
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236 { |
| 485 | 237 ngx_http_rewrite_loc_conf_t *prev = parent; |
| 238 ngx_http_rewrite_loc_conf_t *conf = child; | |
| 239 | |
| 509 | 240 uintptr_t *code; |
| 485 | 241 |
| 242 ngx_conf_merge_value(conf->log, prev->log, 0); | |
| 635 | 243 ngx_conf_merge_value(conf->uninitialized_variable_warn, |
| 244 prev->uninitialized_variable_warn, 1); | |
| 663 | 245 ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10); |
| 485 | 246 |
| 247 if (conf->codes == NULL) { | |
| 248 return NGX_CONF_OK; | |
| 249 } | |
| 250 | |
| 251 if (conf->codes == prev->codes) { | |
| 252 return NGX_CONF_OK; | |
| 253 } | |
| 254 | |
| 501 | 255 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); |
| 256 if (code == NULL) { | |
|
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257 return NGX_CONF_ERROR; |
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258 } |
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259 |
| 485 | 260 *code = (uintptr_t) NULL; |
| 261 | |
| 262 return NGX_CONF_OK; | |
| 263 } | |
| 264 | |
|
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265 |
| 509 | 266 static ngx_int_t |
| 681 | 267 ngx_http_rewrite_init(ngx_conf_t *cf) |
| 577 | 268 { |
| 509 | 269 ngx_http_handler_pt *h; |
| 270 ngx_http_core_main_conf_t *cmcf; | |
| 271 | |
| 681 | 272 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
| 509 | 273 |
| 573 | 274 h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers); |
| 275 if (h == NULL) { | |
| 276 return NGX_ERROR; | |
| 277 } | |
| 278 | |
| 279 *h = ngx_http_rewrite_handler; | |
| 280 | |
| 509 | 281 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); |
| 282 if (h == NULL) { | |
| 283 return NGX_ERROR; | |
| 284 } | |
| 285 | |
| 286 *h = ngx_http_rewrite_handler; | |
| 287 | |
| 288 return NGX_OK; | |
| 577 | 289 } |
| 509 | 290 |
| 291 | |
| 487 | 292 static char * |
| 293 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 294 { |
| 577 | 295 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 296 | |
| 3325 | 297 ngx_str_t *value; |
| 509 | 298 ngx_uint_t last; |
| 3325 | 299 ngx_regex_compile_t rc; |
| 509 | 300 ngx_http_script_code_pt *code; |
| 301 ngx_http_script_compile_t sc; | |
| 302 ngx_http_script_regex_code_t *regex; | |
| 303 ngx_http_script_regex_end_code_t *regex_end; | |
| 304 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 485 | 305 |
| 509 | 306 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 307 sizeof(ngx_http_script_regex_code_t)); | |
| 485 | 308 if (regex == NULL) { |
| 309 return NGX_CONF_ERROR; | |
| 310 } | |
|
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311 |
| 509 | 312 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
| 313 | |
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314 value = cf->args->elts; |
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315 |
| 3325 | 316 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
| 317 | |
| 318 rc.pattern = value[1]; | |
| 319 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
| 320 rc.err.data = errstr; | |
| 485 | 321 |
| 322 /* TODO: NGX_REGEX_CASELESS */ | |
| 323 | |
| 3325 | 324 regex->regex = ngx_http_regex_compile(cf, &rc); |
| 485 | 325 if (regex->regex == NULL) { |
| 326 return NGX_CONF_ERROR; | |
| 327 } | |
| 328 | |
| 509 | 329 regex->code = ngx_http_script_regex_start_code; |
| 485 | 330 regex->uri = 1; |
| 331 regex->name = value[1]; | |
|
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332 |
| 509 | 333 if (value[2].data[value[2].len - 1] == '?') { |
| 334 | |
| 335 /* the last "?" drops the original arguments */ | |
| 336 value[2].len--; | |
| 337 | |
| 338 } else { | |
| 339 regex->add_args = 1; | |
| 340 } | |
| 341 | |
| 485 | 342 last = 0; |
| 343 | |
| 344 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0) { | |
| 345 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
| 346 regex->redirect = 1; | |
| 347 last = 1; | |
| 348 } | |
| 349 | |
|
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350 if (ngx_strncmp(value[2].data, "https://", sizeof("https://") - 1) == 0) { |
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351 regex->status = NGX_HTTP_MOVED_TEMPORARILY; |
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352 regex->redirect = 1; |
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353 last = 1; |
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354 } |
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355 |
| 485 | 356 if (cf->args->nelts == 4) { |
| 357 if (ngx_strcmp(value[3].data, "last") == 0) { | |
| 358 last = 1; | |
|
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359 |
| 487 | 360 } else if (ngx_strcmp(value[3].data, "break") == 0) { |
| 361 regex->break_cycle = 1; | |
| 362 last = 1; | |
| 363 | |
| 485 | 364 } else if (ngx_strcmp(value[3].data, "redirect") == 0) { |
| 365 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
| 366 regex->redirect = 1; | |
| 367 last = 1; | |
|
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368 |
| 485 | 369 } else if (ngx_strcmp(value[3].data, "permanent") == 0) { |
| 370 regex->status = NGX_HTTP_MOVED_PERMANENTLY; | |
| 371 regex->redirect = 1; | |
| 372 last = 1; | |
|
326
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373 |
| 485 | 374 } else { |
|
326
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375 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 461 | 376 "invalid parameter \"%V\"", &value[3]); |
|
326
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377 return NGX_CONF_ERROR; |
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378 } |
| 485 | 379 } |
|
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380 |
| 509 | 381 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
| 485 | 382 |
| 509 | 383 sc.cf = cf; |
| 384 sc.source = &value[2]; | |
| 385 sc.lengths = ®ex->lengths; | |
| 386 sc.values = &lcf->codes; | |
| 387 sc.variables = ngx_http_script_variables_count(&value[2]); | |
| 388 sc.main = regex; | |
| 389 sc.complete_lengths = 1; | |
| 390 sc.compile_args = !regex->redirect; | |
| 485 | 391 |
| 509 | 392 if (ngx_http_script_compile(&sc) != NGX_OK) { |
| 393 return NGX_CONF_ERROR; | |
| 394 } | |
| 485 | 395 |
| 509 | 396 regex = sc.main; |
|
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397 |
| 509 | 398 regex->size = sc.size; |
| 399 regex->args = sc.args; | |
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400 |
| 641 | 401 if (sc.variables == 0 && !sc.dup_capture) { |
| 509 | 402 regex->lengths = NULL; |
| 485 | 403 } |
| 404 | |
| 509 | 405 regex_end = ngx_http_script_add_code(lcf->codes, |
| 406 sizeof(ngx_http_script_regex_end_code_t), | |
| 407 ®ex); | |
| 485 | 408 if (regex_end == NULL) { |
| 409 return NGX_CONF_ERROR; | |
| 410 } | |
| 411 | |
| 509 | 412 regex_end->code = ngx_http_script_regex_end_code; |
| 485 | 413 regex_end->uri = regex->uri; |
| 414 regex_end->args = regex->args; | |
| 509 | 415 regex_end->add_args = regex->add_args; |
| 485 | 416 regex_end->redirect = regex->redirect; |
| 417 | |
| 418 if (last) { | |
| 517 | 419 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); |
| 485 | 420 if (code == NULL) { |
| 421 return NGX_CONF_ERROR; | |
|
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422 } |
|
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423 |
| 3184 | 424 *code = NULL; |
| 485 | 425 } |
| 426 | |
| 427 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 428 - (u_char *) regex; | |
| 429 | |
| 430 return NGX_CONF_OK; | |
| 431 } | |
| 432 | |
| 433 | |
| 487 | 434 static char * |
| 435 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 436 { |
| 577 | 437 ngx_http_rewrite_loc_conf_t *lcf = conf; |
|
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438 |
| 509 | 439 ngx_str_t *value; |
| 440 ngx_http_script_return_code_t *ret; | |
| 485 | 441 |
| 509 | 442 ret = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 443 sizeof(ngx_http_script_return_code_t)); | |
| 485 | 444 if (ret == NULL) { |
| 445 return NGX_CONF_ERROR; | |
| 446 } | |
| 447 | |
| 448 value = cf->args->elts; | |
| 449 | |
| 509 | 450 ret->code = ngx_http_script_return_code; |
| 485 | 451 ret->null = (uintptr_t) NULL; |
| 452 | |
| 453 ret->status = ngx_atoi(value[1].data, value[1].len); | |
| 454 | |
| 455 if (ret->status == (uintptr_t) NGX_ERROR) { | |
| 456 return NGX_CONF_ERROR; | |
|
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457 } |
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458 |
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459 return NGX_CONF_OK; |
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460 } |
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461 |
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462 |
| 487 | 463 static char * |
| 527 | 464 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 465 { | |
| 466 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
| 467 | |
| 468 ngx_http_script_code_pt *code; | |
| 469 | |
| 470 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); | |
| 471 if (code == NULL) { | |
| 472 return NGX_CONF_ERROR; | |
| 473 } | |
| 474 | |
| 475 *code = ngx_http_script_break_code; | |
| 476 | |
| 477 return NGX_CONF_OK; | |
| 478 } | |
| 479 | |
| 480 | |
| 481 static char * | |
| 487 | 482 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
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483 { |
| 577 | 484 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 485 | 485 |
| 486 void *mconf; | |
| 487 char *rv; | |
| 488 u_char *elts; | |
| 489 ngx_uint_t i; | |
| 490 ngx_conf_t save; | |
| 491 ngx_http_module_t *module; | |
| 492 ngx_http_conf_ctx_t *ctx, *pctx; | |
| 2027 | 493 ngx_http_core_loc_conf_t *clcf, *pclcf; |
| 509 | 494 ngx_http_script_if_code_t *if_code; |
| 485 | 495 ngx_http_rewrite_loc_conf_t *nlcf; |
| 496 | |
| 501 | 497 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
| 498 if (ctx == NULL) { | |
| 485 | 499 return NGX_CONF_ERROR; |
| 500 } | |
| 501 | |
| 502 pctx = cf->ctx; | |
| 503 ctx->main_conf = pctx->main_conf; | |
| 577 | 504 ctx->srv_conf = pctx->srv_conf; |
| 485 | 505 |
| 506 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 507 if (ctx->loc_conf == NULL) { | |
| 508 return NGX_CONF_ERROR; | |
| 509 } | |
| 510 | |
| 511 for (i = 0; ngx_modules[i]; i++) { | |
| 512 if (ngx_modules[i]->type != NGX_HTTP_MODULE) { | |
| 513 continue; | |
| 514 } | |
| 515 | |
| 516 module = ngx_modules[i]->ctx; | |
| 577 | 517 |
| 485 | 518 if (module->create_loc_conf) { |
| 519 | |
| 501 | 520 mconf = module->create_loc_conf(cf); |
| 521 if (mconf == NULL) { | |
| 485 | 522 return NGX_CONF_ERROR; |
| 523 } | |
| 524 | |
| 525 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf; | |
| 526 } | |
| 527 } | |
| 528 | |
| 529 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 530 | |
| 531 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 532 clcf->loc_conf = ctx->loc_conf; | |
| 533 clcf->name = pclcf->name; | |
| 534 clcf->noname = 1; | |
| 535 | |
| 2027 | 536 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { |
| 485 | 537 return NGX_CONF_ERROR; |
| 538 } | |
| 539 | |
| 501 | 540 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
| 485 | 541 return NGX_CONF_ERROR; |
| 542 } | |
| 543 | |
| 509 | 544 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); |
| 485 | 545 if (if_code == NULL) { |
| 3001 | 546 return NGX_CONF_ERROR; |
| 485 | 547 } |
| 548 | |
| 509 | 549 if_code->code = ngx_http_script_if_code; |
| 485 | 550 |
| 551 elts = lcf->codes->elts; | |
| 552 | |
| 553 | |
| 631 | 554 /* the inner directives must be compiled to the same code array */ |
| 485 | 555 |
| 556 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
| 557 nlcf->codes = lcf->codes; | |
| 558 | |
| 559 | |
| 560 save = *cf; | |
| 561 cf->ctx = ctx; | |
| 562 | |
| 563 if (pclcf->name.len == 0) { | |
| 564 if_code->loc_conf = NULL; | |
| 565 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
| 566 | |
| 567 } else { | |
| 568 if_code->loc_conf = ctx->loc_conf; | |
| 569 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
| 570 } | |
| 571 | |
| 572 rv = ngx_conf_parse(cf, NULL); | |
| 573 | |
| 574 *cf = save; | |
| 575 | |
| 576 if (rv != NGX_CONF_OK) { | |
| 577 return rv; | |
| 578 } | |
| 579 | |
| 580 | |
| 581 if (elts != lcf->codes->elts) { | |
| 509 | 582 if_code = (ngx_http_script_if_code_t *) |
| 485 | 583 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); |
| 584 } | |
| 585 | |
| 586 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 587 - (u_char *) if_code; | |
|
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588 |
| 555 | 589 /* the code array belong to parent block */ |
| 590 | |
| 591 nlcf->codes = NULL; | |
| 592 | |
|
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593 return NGX_CONF_OK; |
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594 } |
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470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
595 |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
596 |
| 487 | 597 static char * |
| 501 | 598 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
| 599 { | |
| 631 | 600 u_char *p; |
| 601 size_t len; | |
| 3325 | 602 ngx_str_t *value; |
| 603 ngx_uint_t cur, last; | |
| 604 ngx_regex_compile_t rc; | |
| 577 | 605 ngx_http_script_code_pt *code; |
| 631 | 606 ngx_http_script_file_code_t *fop; |
| 509 | 607 ngx_http_script_regex_code_t *regex; |
| 608 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 501 | 609 |
| 610 value = cf->args->elts; | |
| 611 last = cf->args->nelts - 1; | |
| 612 | |
| 613 if (value[1].len < 1 || value[1].data[0] != '(') { | |
| 614 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 615 "invalid condition \"%V\"", &value[1]); | |
| 616 return NGX_CONF_ERROR; | |
| 617 } | |
| 618 | |
| 619 if (value[1].len == 1) { | |
| 620 cur = 2; | |
| 621 | |
| 622 } else { | |
| 623 cur = 1; | |
| 624 value[1].len--; | |
| 625 value[1].data++; | |
| 626 } | |
| 627 | |
| 628 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
| 629 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 630 "invalid condition \"%V\"", &value[last]); | |
| 631 return NGX_CONF_ERROR; | |
| 632 } | |
| 633 | |
| 634 if (value[last].len == 1) { | |
| 635 last--; | |
| 636 | |
| 637 } else { | |
| 638 value[last].len--; | |
| 639 value[last].data[value[last].len] = '\0'; | |
| 640 } | |
| 641 | |
| 631 | 642 len = value[cur].len; |
| 643 p = value[cur].data; | |
| 644 | |
| 645 if (len > 1 && p[0] == '$') { | |
| 501 | 646 |
| 647 if (cur != last && cur + 2 != last) { | |
| 648 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 631 | 649 "invalid condition \"%V\"", &value[cur]); |
| 501 | 650 return NGX_CONF_ERROR; |
| 651 } | |
| 652 | |
| 577 | 653 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { |
| 501 | 654 return NGX_CONF_ERROR; |
| 655 } | |
| 656 | |
| 657 if (cur == last) { | |
| 658 return NGX_CONF_OK; | |
| 659 } | |
| 660 | |
| 661 cur++; | |
| 662 | |
| 631 | 663 len = value[cur].len; |
| 664 p = value[cur].data; | |
| 665 | |
| 666 if (len == 1 && p[0] == '=') { | |
| 577 | 667 |
| 668 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
| 669 return NGX_CONF_ERROR; | |
| 670 } | |
| 671 | |
| 672 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 673 sizeof(uintptr_t)); | |
| 674 if (code == NULL) { | |
| 675 return NGX_CONF_ERROR; | |
| 676 } | |
| 677 | |
| 678 *code = ngx_http_script_equal_code; | |
| 679 | |
| 680 return NGX_CONF_OK; | |
| 501 | 681 } |
| 682 | |
| 631 | 683 if (len == 2 && p[0] == '!' && p[1] == '=') { |
| 684 | |
| 577 | 685 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { |
| 686 return NGX_CONF_ERROR; | |
| 687 } | |
| 688 | |
| 689 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 690 sizeof(uintptr_t)); | |
| 691 if (code == NULL) { | |
| 692 return NGX_CONF_ERROR; | |
| 693 } | |
| 694 | |
| 695 *code = ngx_http_script_not_equal_code; | |
| 696 return NGX_CONF_OK; | |
| 501 | 697 } |
| 698 | |
| 631 | 699 if ((len == 1 && p[0] == '~') |
| 700 || (len == 2 && p[0] == '~' && p[1] == '*') | |
| 701 || (len == 2 && p[0] == '!' && p[1] == '~') | |
| 702 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) | |
| 577 | 703 { |
| 704 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 705 sizeof(ngx_http_script_regex_code_t)); | |
| 706 if (regex == NULL) { | |
| 707 return NGX_CONF_ERROR; | |
| 708 } | |
| 509 | 709 |
| 577 | 710 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
| 711 | |
| 3325 | 712 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
| 577 | 713 |
| 3325 | 714 rc.pattern = value[last]; |
| 715 rc.options = (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0; | |
| 716 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
| 717 rc.err.data = errstr; | |
| 501 | 718 |
| 3325 | 719 regex->regex = ngx_http_regex_compile(cf, &rc); |
| 577 | 720 if (regex->regex == NULL) { |
| 721 return NGX_CONF_ERROR; | |
| 722 } | |
| 723 | |
| 724 regex->code = ngx_http_script_regex_start_code; | |
| 725 regex->next = sizeof(ngx_http_script_regex_code_t); | |
| 726 regex->test = 1; | |
| 631 | 727 if (p[0] == '!') { |
| 728 regex->negative_test = 1; | |
| 729 } | |
| 577 | 730 regex->name = value[last]; |
| 501 | 731 |
| 577 | 732 return NGX_CONF_OK; |
| 501 | 733 } |
| 734 | |
| 577 | 735 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 736 "unexpected \"%V\" in condition", &value[cur]); | |
| 737 return NGX_CONF_ERROR; | |
| 631 | 738 |
| 739 } else if ((len == 2 && p[0] == '-') | |
| 740 || (len == 3 && p[0] == '!' && p[1] == '-')) | |
| 741 { | |
| 742 if (cur + 1 != last) { | |
| 743 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 744 "invalid condition \"%V\"", &value[cur]); | |
| 745 return NGX_CONF_ERROR; | |
| 746 } | |
| 747 | |
| 748 value[last].data[value[last].len] = '\0'; | |
| 749 value[last].len++; | |
| 750 | |
| 751 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
| 752 return NGX_CONF_ERROR; | |
| 753 } | |
| 754 | |
| 755 fop = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 756 sizeof(ngx_http_script_file_code_t)); | |
| 757 if (fop == NULL) { | |
| 758 return NGX_CONF_ERROR; | |
| 759 } | |
| 760 | |
| 761 fop->code = ngx_http_script_file_code; | |
| 762 | |
| 763 if (p[1] == 'f') { | |
| 764 fop->op = ngx_http_script_file_plain; | |
| 765 return NGX_CONF_OK; | |
| 766 } | |
| 767 | |
| 669 | 768 if (p[1] == 'd') { |
| 769 fop->op = ngx_http_script_file_dir; | |
| 770 return NGX_CONF_OK; | |
| 771 } | |
| 772 | |
| 773 if (p[1] == 'e') { | |
| 774 fop->op = ngx_http_script_file_exists; | |
| 775 return NGX_CONF_OK; | |
| 776 } | |
| 777 | |
| 778 if (p[1] == 'x') { | |
| 779 fop->op = ngx_http_script_file_exec; | |
| 780 return NGX_CONF_OK; | |
| 781 } | |
| 782 | |
| 631 | 783 if (p[0] == '!') { |
| 784 if (p[2] == 'f') { | |
| 785 fop->op = ngx_http_script_file_not_plain; | |
| 786 return NGX_CONF_OK; | |
| 787 } | |
| 669 | 788 |
| 789 if (p[2] == 'd') { | |
| 790 fop->op = ngx_http_script_file_not_dir; | |
| 791 return NGX_CONF_OK; | |
| 792 } | |
| 793 | |
| 794 if (p[2] == 'e') { | |
| 795 fop->op = ngx_http_script_file_not_exists; | |
| 796 return NGX_CONF_OK; | |
| 797 } | |
| 798 | |
| 799 if (p[2] == 'x') { | |
| 800 fop->op = ngx_http_script_file_not_exec; | |
| 801 return NGX_CONF_OK; | |
| 802 } | |
| 631 | 803 } |
| 804 | |
| 805 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 806 "invalid condition \"%V\"", &value[cur]); | |
| 807 return NGX_CONF_ERROR; | |
| 501 | 808 } |
| 809 | |
| 810 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 811 "invalid condition \"%V\"", &value[cur]); | |
| 812 | |
| 813 return NGX_CONF_ERROR; | |
| 814 } | |
| 815 | |
| 816 | |
| 817 static char * | |
| 818 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
| 819 ngx_str_t *value) | |
| 820 { | |
| 509 | 821 ngx_int_t index; |
| 822 ngx_http_script_var_code_t *var_code; | |
| 501 | 823 |
| 824 value->len--; | |
| 825 value->data++; | |
| 826 | |
| 577 | 827 index = ngx_http_get_variable_index(cf, value); |
| 501 | 828 |
| 577 | 829 if (index == NGX_ERROR) { |
| 830 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
|
831 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
832 |
| 577 | 833 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 834 sizeof(ngx_http_script_var_code_t)); | |
| 835 if (var_code == NULL) { | |
| 836 return NGX_CONF_ERROR; | |
| 485 | 837 } |
| 838 | |
| 577 | 839 var_code->code = ngx_http_script_var_code; |
| 840 var_code->index = index; | |
| 485 | 841 |
| 842 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
|
843 } |
| 485 | 844 |
| 845 | |
| 501 | 846 static char * |
| 847 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 848 { | |
| 577 | 849 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 501 | 850 |
| 637 | 851 ngx_int_t index; |
| 852 ngx_str_t *value; | |
| 853 ngx_http_variable_t *v; | |
| 854 ngx_http_script_var_code_t *vcode; | |
| 855 ngx_http_script_var_handler_code_t *vhcode; | |
| 501 | 856 |
| 857 value = cf->args->elts; | |
| 858 | |
| 859 if (value[1].data[0] != '$') { | |
| 860 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 861 "invalid variable name \"%V\"", &value[1]); | |
| 862 return NGX_CONF_ERROR; | |
| 863 } | |
| 864 | |
| 865 value[1].len--; | |
| 866 value[1].data++; | |
| 867 | |
| 1565 | 868 v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGEABLE); |
| 501 | 869 if (v == NULL) { |
| 870 return NGX_CONF_ERROR; | |
| 871 } | |
| 872 | |
| 509 | 873 index = ngx_http_get_variable_index(cf, &value[1]); |
| 874 if (index == NGX_ERROR) { | |
| 875 return NGX_CONF_ERROR; | |
| 876 } | |
| 501 | 877 |
|
1189
5e1a8fe79c4b
allow to "set" $http_, $sent_http_, and $upstream_http_ variables
Igor Sysoev <igor@sysoev.ru>
parents:
739
diff
changeset
|
878 if (v->get_handler == NULL |
| 1192 | 879 && ngx_strncasecmp(value[1].data, (u_char *) "http_", 5) != 0 |
| 880 && ngx_strncasecmp(value[1].data, (u_char *) "sent_http_", 10) != 0 | |
| 881 && ngx_strncasecmp(value[1].data, (u_char *) "upstream_http_", 14) != 0) | |
|
1189
5e1a8fe79c4b
allow to "set" $http_, $sent_http_, and $upstream_http_ variables
Igor Sysoev <igor@sysoev.ru>
parents:
739
diff
changeset
|
882 { |
| 637 | 883 v->get_handler = ngx_http_rewrite_var; |
| 555 | 884 v->data = index; |
| 885 } | |
| 509 | 886 |
| 577 | 887 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { |
| 888 return NGX_CONF_ERROR; | |
| 515 | 889 } |
| 501 | 890 |
| 637 | 891 if (v->set_handler) { |
| 892 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 893 sizeof(ngx_http_script_var_handler_code_t)); | |
| 894 if (vhcode == NULL) { | |
| 895 return NGX_CONF_ERROR; | |
| 896 } | |
| 897 | |
| 898 vhcode->code = ngx_http_script_var_set_handler_code; | |
| 899 vhcode->handler = v->set_handler; | |
| 900 vhcode->data = v->data; | |
| 901 | |
| 902 return NGX_CONF_OK; | |
| 903 } | |
| 904 | |
| 905 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 906 sizeof(ngx_http_script_var_code_t)); | |
| 907 if (vcode == NULL) { | |
| 501 | 908 return NGX_CONF_ERROR; |
| 909 } | |
| 910 | |
| 637 | 911 vcode->code = ngx_http_script_set_var_code; |
| 912 vcode->index = (uintptr_t) index; | |
| 501 | 913 |
| 914 return NGX_CONF_OK; | |
| 915 } | |
| 577 | 916 |
| 917 | |
| 918 static char * | |
| 919 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
| 920 ngx_str_t *value) | |
| 921 { | |
| 922 ngx_int_t n; | |
| 923 ngx_http_script_compile_t sc; | |
| 924 ngx_http_script_value_code_t *val; | |
| 925 ngx_http_script_complex_value_code_t *complex; | |
| 926 | |
| 927 n = ngx_http_script_variables_count(value); | |
| 928 | |
| 929 if (n == 0) { | |
| 930 val = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 931 sizeof(ngx_http_script_value_code_t)); | |
| 932 if (val == NULL) { | |
| 933 return NGX_CONF_ERROR; | |
| 934 } | |
| 935 | |
| 936 n = ngx_atoi(value->data, value->len); | |
| 937 | |
| 938 if (n == NGX_ERROR) { | |
| 939 n = 0; | |
| 940 } | |
| 941 | |
| 942 val->code = ngx_http_script_value_code; | |
| 943 val->value = (uintptr_t) n; | |
| 944 val->text_len = (uintptr_t) value->len; | |
| 945 val->text_data = (uintptr_t) value->data; | |
| 946 | |
| 947 return NGX_CONF_OK; | |
| 948 } | |
| 949 | |
| 950 complex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 951 sizeof(ngx_http_script_complex_value_code_t)); | |
| 952 if (complex == NULL) { | |
| 953 return NGX_CONF_ERROR; | |
| 954 } | |
| 955 | |
| 956 complex->code = ngx_http_script_complex_value_code; | |
| 957 complex->lengths = NULL; | |
| 958 | |
| 959 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 960 | |
| 961 sc.cf = cf; | |
| 962 sc.source = value; | |
| 963 sc.lengths = &complex->lengths; | |
| 964 sc.values = &lcf->codes; | |
| 965 sc.variables = n; | |
| 966 sc.complete_lengths = 1; | |
| 967 | |
| 968 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 969 return NGX_CONF_ERROR; | |
| 970 } | |
| 971 | |
| 972 return NGX_CONF_OK; | |
| 973 } |