Mercurial > hg > nginx
annotate src/http/modules/ngx_http_rewrite_module.c @ 726:7b71936d5299
fix: "return" always overrode "error_page" response code
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Mon, 02 Oct 2006 08:37:11 +0000 |
| parents | 7e24168b0853 |
| children | 9f983de19a1d |
| 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 captures; |
| 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; |
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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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43 |
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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 | |
| 56 |NGX_CONF_TAKE1, | |
| 57 ngx_http_rewrite_return, | |
| 58 NGX_HTTP_LOC_CONF_OFFSET, | |
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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, | |
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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 | |
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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 */ |
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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 */ | |
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114 |
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115 ngx_http_rewrite_create_loc_conf, /* create location configration */ |
| 485 | 116 ngx_http_rewrite_merge_loc_conf /* merge location configration */ |
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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 */ |
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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 | |
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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 { |
| 509 | 139 ngx_http_script_code_pt code; |
| 140 ngx_http_script_engine_t *e; | |
| 635 | 141 ngx_http_rewrite_loc_conf_t *rlcf; |
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142 |
| 635 | 143 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); |
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144 |
| 635 | 145 if (rlcf->codes == NULL) { |
| 485 | 146 return NGX_DECLINED; |
| 147 } | |
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148 |
| 509 | 149 e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t)); |
| 501 | 150 if (e == NULL) { |
| 485 | 151 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 152 } | |
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153 |
| 509 | 154 e->sp = ngx_pcalloc(r->pool, |
| 635 | 155 rlcf->stack_size * sizeof(ngx_http_variable_value_t)); |
| 485 | 156 if (e->sp == NULL) { |
| 157 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 158 } | |
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159 |
| 635 | 160 if (rlcf->captures) { |
| 161 e->captures = ngx_palloc(r->pool, rlcf->captures * sizeof(int)); | |
| 485 | 162 if (e->captures == NULL) { |
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163 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
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164 } |
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165 |
| 485 | 166 } else { |
| 167 e->captures = NULL; | |
| 168 } | |
| 169 | |
| 635 | 170 e->ip = rlcf->codes->elts; |
| 509 | 171 e->request = r; |
| 485 | 172 e->quote = 1; |
| 635 | 173 e->log = rlcf->log; |
| 485 | 174 e->status = NGX_DECLINED; |
| 175 | |
| 176 while (*(uintptr_t *) e->ip) { | |
| 509 | 177 code = *(ngx_http_script_code_pt *) e->ip; |
| 485 | 178 code(e); |
| 179 } | |
| 180 | |
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181 if (r->err_status == 0) { |
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182 return e->status; |
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183 } |
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184 |
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185 return r->err_status; |
| 485 | 186 } |
| 187 | |
| 188 | |
| 573 | 189 static ngx_int_t |
| 190 ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 191 uintptr_t data) | |
| 501 | 192 { |
| 635 | 193 ngx_http_variable_t *var; |
| 194 ngx_http_core_main_conf_t *cmcf; | |
| 195 ngx_http_rewrite_loc_conf_t *rlcf; | |
| 196 | |
| 197 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); | |
| 198 | |
| 199 if (rlcf->uninitialized_variable_warn == 0) { | |
| 200 *v = ngx_http_variable_null_value; | |
| 201 return NGX_OK; | |
| 202 } | |
| 501 | 203 |
| 204 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
| 205 | |
| 206 var = cmcf->variables.elts; | |
| 207 | |
| 208 /* | |
| 209 * the ngx_http_rewrite_module sets variables directly in r->variables, | |
| 519 | 210 * and they should be handled by ngx_http_get_indexed_variable(), |
| 501 | 211 * so the handler is called only if the variable is not initialized |
| 212 */ | |
| 213 | |
| 635 | 214 ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
| 501 | 215 "using uninitialized \"%V\" variable", &var[data].name); |
| 216 | |
| 577 | 217 *v = ngx_http_variable_null_value; |
| 573 | 218 |
| 219 return NGX_OK; | |
| 501 | 220 } |
| 221 | |
| 222 | |
| 487 | 223 static void * |
| 224 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) | |
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225 { |
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226 ngx_http_rewrite_loc_conf_t *conf; |
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227 |
| 501 | 228 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); |
| 229 if (conf == NULL) { | |
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230 return NGX_CONF_ERROR; |
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231 } |
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232 |
| 485 | 233 conf->stack_size = NGX_CONF_UNSET_UINT; |
| 234 conf->log = NGX_CONF_UNSET; | |
| 635 | 235 conf->uninitialized_variable_warn = NGX_CONF_UNSET; |
| 485 | 236 |
|
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237 return conf; |
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238 } |
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239 |
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240 |
| 487 | 241 static char * |
| 242 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
|
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243 { |
| 485 | 244 ngx_http_rewrite_loc_conf_t *prev = parent; |
| 245 ngx_http_rewrite_loc_conf_t *conf = child; | |
| 246 | |
| 509 | 247 uintptr_t *code; |
| 485 | 248 |
| 249 ngx_conf_merge_value(conf->log, prev->log, 0); | |
| 635 | 250 ngx_conf_merge_value(conf->uninitialized_variable_warn, |
| 251 prev->uninitialized_variable_warn, 1); | |
| 663 | 252 ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10); |
| 485 | 253 |
| 254 if (conf->codes == NULL) { | |
| 255 return NGX_CONF_OK; | |
| 256 } | |
| 257 | |
| 258 if (conf->codes == prev->codes) { | |
| 259 return NGX_CONF_OK; | |
| 260 } | |
| 261 | |
| 501 | 262 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); |
| 263 if (code == NULL) { | |
|
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264 return NGX_CONF_ERROR; |
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265 } |
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266 |
| 485 | 267 *code = (uintptr_t) NULL; |
| 268 | |
| 269 return NGX_CONF_OK; | |
| 270 } | |
| 271 | |
|
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272 |
| 509 | 273 static ngx_int_t |
| 681 | 274 ngx_http_rewrite_init(ngx_conf_t *cf) |
| 577 | 275 { |
| 509 | 276 ngx_http_handler_pt *h; |
| 277 ngx_http_core_main_conf_t *cmcf; | |
| 278 | |
| 681 | 279 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
| 509 | 280 |
| 573 | 281 h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers); |
| 282 if (h == NULL) { | |
| 283 return NGX_ERROR; | |
| 284 } | |
| 285 | |
| 286 *h = ngx_http_rewrite_handler; | |
| 287 | |
| 509 | 288 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); |
| 289 if (h == NULL) { | |
| 290 return NGX_ERROR; | |
| 291 } | |
| 292 | |
| 293 *h = ngx_http_rewrite_handler; | |
| 294 | |
| 295 return NGX_OK; | |
| 577 | 296 } |
| 509 | 297 |
| 298 | |
| 487 | 299 static char * |
| 300 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 301 { |
| 577 | 302 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 303 | |
| 509 | 304 ngx_str_t *value, err; |
| 305 ngx_int_t n; | |
| 306 ngx_uint_t last; | |
| 307 ngx_http_script_code_pt *code; | |
| 308 ngx_http_script_compile_t sc; | |
| 309 ngx_http_script_regex_code_t *regex; | |
| 310 ngx_http_script_regex_end_code_t *regex_end; | |
| 311 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 485 | 312 |
| 509 | 313 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 314 sizeof(ngx_http_script_regex_code_t)); | |
| 485 | 315 if (regex == NULL) { |
| 316 return NGX_CONF_ERROR; | |
| 317 } | |
|
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318 |
| 509 | 319 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
| 320 | |
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321 value = cf->args->elts; |
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322 |
| 485 | 323 err.len = NGX_MAX_CONF_ERRSTR; |
| 324 err.data = errstr; | |
| 325 | |
| 326 /* TODO: NGX_REGEX_CASELESS */ | |
| 327 | |
| 328 regex->regex = ngx_regex_compile(&value[1], 0, cf->pool, &err); | |
| 329 | |
| 330 if (regex->regex == NULL) { | |
| 331 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data); | |
| 332 return NGX_CONF_ERROR; | |
| 333 } | |
| 334 | |
| 509 | 335 regex->code = ngx_http_script_regex_start_code; |
| 485 | 336 regex->uri = 1; |
| 337 regex->name = value[1]; | |
|
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338 |
| 509 | 339 if (value[2].data[value[2].len - 1] == '?') { |
| 340 | |
| 341 /* the last "?" drops the original arguments */ | |
| 342 value[2].len--; | |
| 343 | |
| 344 } else { | |
| 345 regex->add_args = 1; | |
| 346 } | |
| 347 | |
| 485 | 348 last = 0; |
| 349 | |
| 350 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0) { | |
| 351 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
| 352 regex->redirect = 1; | |
| 353 last = 1; | |
| 354 } | |
| 355 | |
| 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; | |
|
326
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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]); |
|
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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->ncaptures = sc.ncaptures; |
| 399 regex->size = sc.size; | |
| 400 regex->args = sc.args; | |
|
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401 |
| 641 | 402 if (sc.variables == 0 && !sc.dup_capture) { |
| 509 | 403 regex->lengths = NULL; |
| 485 | 404 } |
| 405 | |
| 406 n = ngx_regex_capture_count(regex->regex); | |
| 407 | |
| 501 | 408 if (n < 0) { |
| 409 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 410 ngx_regex_capture_count_n " failed for " | |
| 411 "pattern \"%V\"", &value[1]); | |
| 412 return NGX_CONF_ERROR; | |
| 413 } | |
| 414 | |
| 415 if (regex->ncaptures > (ngx_uint_t) n) { | |
| 485 | 416 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 417 "pattern \"%V\" has less captures " | |
| 418 "than referrenced in substitution \"%V\"", | |
| 419 &value[1], &value[2]); | |
| 420 return NGX_CONF_ERROR; | |
| 421 } | |
| 422 | |
| 501 | 423 if (regex->ncaptures < (ngx_uint_t) n) { |
| 424 regex->ncaptures = (ngx_uint_t) n; | |
| 485 | 425 } |
| 481 | 426 |
| 485 | 427 if (regex->ncaptures) { |
| 428 regex->ncaptures = (regex->ncaptures + 1) * 3; | |
| 429 | |
| 515 | 430 if (lcf->captures < regex->ncaptures) { |
| 431 lcf->captures = regex->ncaptures; | |
| 432 } | |
| 509 | 433 } |
| 434 | |
| 435 regex_end = ngx_http_script_add_code(lcf->codes, | |
| 436 sizeof(ngx_http_script_regex_end_code_t), | |
| 437 ®ex); | |
| 485 | 438 if (regex_end == NULL) { |
| 439 return NGX_CONF_ERROR; | |
| 440 } | |
| 441 | |
| 509 | 442 regex_end->code = ngx_http_script_regex_end_code; |
| 485 | 443 regex_end->uri = regex->uri; |
| 444 regex_end->args = regex->args; | |
| 509 | 445 regex_end->add_args = regex->add_args; |
| 485 | 446 regex_end->redirect = regex->redirect; |
| 447 | |
| 448 if (last) { | |
| 517 | 449 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); |
| 485 | 450 if (code == NULL) { |
| 451 return NGX_CONF_ERROR; | |
|
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452 } |
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453 |
| 485 | 454 *code = (uintptr_t) NULL; |
| 455 } | |
| 456 | |
| 457 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 458 - (u_char *) regex; | |
| 459 | |
| 460 return NGX_CONF_OK; | |
| 461 } | |
| 462 | |
| 463 | |
| 487 | 464 static char * |
| 465 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 466 { |
| 577 | 467 ngx_http_rewrite_loc_conf_t *lcf = conf; |
|
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468 |
| 509 | 469 ngx_str_t *value; |
| 470 ngx_http_script_return_code_t *ret; | |
| 485 | 471 |
| 509 | 472 ret = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 473 sizeof(ngx_http_script_return_code_t)); | |
| 485 | 474 if (ret == NULL) { |
| 475 return NGX_CONF_ERROR; | |
| 476 } | |
| 477 | |
| 478 value = cf->args->elts; | |
| 479 | |
| 509 | 480 ret->code = ngx_http_script_return_code; |
| 485 | 481 ret->null = (uintptr_t) NULL; |
| 482 | |
| 483 ret->status = ngx_atoi(value[1].data, value[1].len); | |
| 484 | |
| 485 if (ret->status == (uintptr_t) NGX_ERROR) { | |
| 486 return NGX_CONF_ERROR; | |
|
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487 } |
|
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488 |
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489 return NGX_CONF_OK; |
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490 } |
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491 |
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492 |
| 487 | 493 static char * |
| 527 | 494 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 495 { | |
| 496 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
| 497 | |
| 498 ngx_http_script_code_pt *code; | |
| 499 | |
| 500 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); | |
| 501 if (code == NULL) { | |
| 502 return NGX_CONF_ERROR; | |
| 503 } | |
| 504 | |
| 505 *code = ngx_http_script_break_code; | |
| 506 | |
| 507 return NGX_CONF_OK; | |
| 508 } | |
| 509 | |
| 510 | |
| 511 static char * | |
| 487 | 512 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
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513 { |
| 577 | 514 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 485 | 515 |
| 516 void *mconf; | |
| 517 char *rv; | |
| 518 u_char *elts; | |
| 519 ngx_uint_t i; | |
| 520 ngx_conf_t save; | |
| 521 ngx_http_module_t *module; | |
| 522 ngx_http_conf_ctx_t *ctx, *pctx; | |
| 523 ngx_http_core_loc_conf_t *clcf, *pclcf, **clcfp; | |
| 509 | 524 ngx_http_script_if_code_t *if_code; |
| 485 | 525 ngx_http_rewrite_loc_conf_t *nlcf; |
| 526 | |
| 501 | 527 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
| 528 if (ctx == NULL) { | |
| 485 | 529 return NGX_CONF_ERROR; |
| 530 } | |
| 531 | |
| 532 pctx = cf->ctx; | |
| 533 ctx->main_conf = pctx->main_conf; | |
| 577 | 534 ctx->srv_conf = pctx->srv_conf; |
| 485 | 535 |
| 536 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 537 if (ctx->loc_conf == NULL) { | |
| 538 return NGX_CONF_ERROR; | |
| 539 } | |
| 540 | |
| 541 for (i = 0; ngx_modules[i]; i++) { | |
| 542 if (ngx_modules[i]->type != NGX_HTTP_MODULE) { | |
| 543 continue; | |
| 544 } | |
| 545 | |
| 546 module = ngx_modules[i]->ctx; | |
| 577 | 547 |
| 485 | 548 if (module->create_loc_conf) { |
| 549 | |
| 501 | 550 mconf = module->create_loc_conf(cf); |
| 551 if (mconf == NULL) { | |
| 485 | 552 return NGX_CONF_ERROR; |
| 553 } | |
| 554 | |
| 555 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf; | |
| 556 } | |
| 557 } | |
| 558 | |
| 559 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 560 | |
| 561 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 562 clcf->loc_conf = ctx->loc_conf; | |
| 563 clcf->name = pclcf->name; | |
| 564 clcf->noname = 1; | |
| 565 | |
| 566 if (pclcf->locations.elts == NULL) { | |
| 567 if (ngx_array_init(&pclcf->locations, cf->pool, 4, sizeof(void *)) | |
| 555 | 568 == NGX_ERROR) |
| 485 | 569 { |
| 570 return NGX_CONF_ERROR; | |
| 571 } | |
| 572 } | |
| 573 | |
| 501 | 574 clcfp = ngx_array_push(&pclcf->locations); |
| 575 if (clcfp == NULL) { | |
| 485 | 576 return NGX_CONF_ERROR; |
| 577 } | |
| 578 | |
| 579 *clcfp = clcf; | |
| 580 | |
| 581 | |
| 501 | 582 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
| 485 | 583 return NGX_CONF_ERROR; |
| 584 } | |
| 585 | |
| 509 | 586 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); |
| 485 | 587 if (if_code == NULL) { |
| 588 return NULL; | |
| 589 } | |
| 590 | |
| 509 | 591 if_code->code = ngx_http_script_if_code; |
| 485 | 592 |
| 593 elts = lcf->codes->elts; | |
| 594 | |
| 595 | |
| 631 | 596 /* the inner directives must be compiled to the same code array */ |
| 485 | 597 |
| 598 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
| 599 nlcf->codes = lcf->codes; | |
| 600 | |
| 601 | |
| 602 save = *cf; | |
| 603 cf->ctx = ctx; | |
| 604 | |
| 605 if (pclcf->name.len == 0) { | |
| 606 if_code->loc_conf = NULL; | |
| 607 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
| 608 | |
| 609 } else { | |
| 610 if_code->loc_conf = ctx->loc_conf; | |
| 611 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
| 612 } | |
| 613 | |
| 614 rv = ngx_conf_parse(cf, NULL); | |
| 615 | |
| 616 *cf = save; | |
| 617 | |
| 618 if (rv != NGX_CONF_OK) { | |
| 619 return rv; | |
| 620 } | |
| 621 | |
| 622 | |
| 517 | 623 if (lcf->captures < nlcf->captures) { |
| 624 lcf->captures = nlcf->captures; | |
| 625 } | |
| 626 | |
| 627 | |
| 485 | 628 if (elts != lcf->codes->elts) { |
| 509 | 629 if_code = (ngx_http_script_if_code_t *) |
| 485 | 630 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); |
| 631 } | |
| 632 | |
| 633 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 634 - (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
|
635 |
| 555 | 636 /* the code array belong to parent block */ |
| 637 | |
| 638 nlcf->codes = NULL; | |
| 639 | |
|
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
640 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
|
641 } |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
642 |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
643 |
| 487 | 644 static char * |
| 501 | 645 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
| 646 { | |
| 631 | 647 u_char *p; |
| 648 size_t len; | |
| 509 | 649 ngx_str_t *value, err; |
| 515 | 650 ngx_uint_t cur, last, n; |
| 577 | 651 ngx_http_script_code_pt *code; |
| 631 | 652 ngx_http_script_file_code_t *fop; |
| 509 | 653 ngx_http_script_regex_code_t *regex; |
| 654 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 501 | 655 |
| 656 value = cf->args->elts; | |
| 657 last = cf->args->nelts - 1; | |
| 658 | |
| 659 if (value[1].len < 1 || value[1].data[0] != '(') { | |
| 660 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 661 "invalid condition \"%V\"", &value[1]); | |
| 662 return NGX_CONF_ERROR; | |
| 663 } | |
| 664 | |
| 665 if (value[1].len == 1) { | |
| 666 cur = 2; | |
| 667 | |
| 668 } else { | |
| 669 cur = 1; | |
| 670 value[1].len--; | |
| 671 value[1].data++; | |
| 672 } | |
| 673 | |
| 674 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
| 675 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 676 "invalid condition \"%V\"", &value[last]); | |
| 677 return NGX_CONF_ERROR; | |
| 678 } | |
| 679 | |
| 680 if (value[last].len == 1) { | |
| 681 last--; | |
| 682 | |
| 683 } else { | |
| 684 value[last].len--; | |
| 685 value[last].data[value[last].len] = '\0'; | |
| 686 } | |
| 687 | |
| 631 | 688 len = value[cur].len; |
| 689 p = value[cur].data; | |
| 690 | |
| 691 if (len > 1 && p[0] == '$') { | |
| 501 | 692 |
| 693 if (cur != last && cur + 2 != last) { | |
| 694 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 631 | 695 "invalid condition \"%V\"", &value[cur]); |
| 501 | 696 return NGX_CONF_ERROR; |
| 697 } | |
| 698 | |
| 577 | 699 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { |
| 501 | 700 return NGX_CONF_ERROR; |
| 701 } | |
| 702 | |
| 703 if (cur == last) { | |
| 704 return NGX_CONF_OK; | |
| 705 } | |
| 706 | |
| 707 cur++; | |
| 708 | |
| 631 | 709 len = value[cur].len; |
| 710 p = value[cur].data; | |
| 711 | |
| 712 if (len == 1 && p[0] == '=') { | |
| 577 | 713 |
| 714 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
| 715 return NGX_CONF_ERROR; | |
| 716 } | |
| 717 | |
| 718 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 719 sizeof(uintptr_t)); | |
| 720 if (code == NULL) { | |
| 721 return NGX_CONF_ERROR; | |
| 722 } | |
| 723 | |
| 724 *code = ngx_http_script_equal_code; | |
| 725 | |
| 726 return NGX_CONF_OK; | |
| 501 | 727 } |
| 728 | |
| 631 | 729 if (len == 2 && p[0] == '!' && p[1] == '=') { |
| 730 | |
| 577 | 731 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { |
| 732 return NGX_CONF_ERROR; | |
| 733 } | |
| 734 | |
| 735 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 736 sizeof(uintptr_t)); | |
| 737 if (code == NULL) { | |
| 738 return NGX_CONF_ERROR; | |
| 739 } | |
| 740 | |
| 741 *code = ngx_http_script_not_equal_code; | |
| 742 return NGX_CONF_OK; | |
| 501 | 743 } |
| 744 | |
| 631 | 745 if ((len == 1 && p[0] == '~') |
| 746 || (len == 2 && p[0] == '~' && p[1] == '*') | |
| 747 || (len == 2 && p[0] == '!' && p[1] == '~') | |
| 748 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) | |
| 577 | 749 { |
| 750 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 751 sizeof(ngx_http_script_regex_code_t)); | |
| 752 if (regex == NULL) { | |
| 753 return NGX_CONF_ERROR; | |
| 754 } | |
| 509 | 755 |
| 577 | 756 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
| 757 | |
| 758 err.len = NGX_MAX_CONF_ERRSTR; | |
| 759 err.data = errstr; | |
| 760 | |
| 761 regex->regex = ngx_regex_compile(&value[last], | |
| 631 | 762 (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0, |
| 763 cf->pool, &err); | |
| 501 | 764 |
| 577 | 765 if (regex->regex == NULL) { |
| 766 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data); | |
| 767 return NGX_CONF_ERROR; | |
| 768 } | |
| 769 | |
| 770 regex->code = ngx_http_script_regex_start_code; | |
| 771 regex->next = sizeof(ngx_http_script_regex_code_t); | |
| 772 regex->test = 1; | |
| 631 | 773 if (p[0] == '!') { |
| 774 regex->negative_test = 1; | |
| 775 } | |
| 577 | 776 regex->name = value[last]; |
| 501 | 777 |
| 577 | 778 n = ngx_regex_capture_count(regex->regex); |
| 779 | |
| 780 if (n) { | |
| 781 regex->ncaptures = (n + 1) * 3; | |
| 782 | |
| 783 if (lcf->captures < regex->ncaptures) { | |
| 784 lcf->captures = regex->ncaptures; | |
| 785 } | |
| 786 } | |
| 787 | |
| 788 return NGX_CONF_OK; | |
| 501 | 789 } |
| 790 | |
| 577 | 791 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 792 "unexpected \"%V\" in condition", &value[cur]); | |
| 793 return NGX_CONF_ERROR; | |
| 631 | 794 |
| 795 } else if ((len == 2 && p[0] == '-') | |
| 796 || (len == 3 && p[0] == '!' && p[1] == '-')) | |
| 797 { | |
| 798 if (cur + 1 != last) { | |
| 799 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 800 "invalid condition \"%V\"", &value[cur]); | |
| 801 return NGX_CONF_ERROR; | |
| 802 } | |
| 803 | |
| 804 value[last].data[value[last].len] = '\0'; | |
| 805 value[last].len++; | |
| 806 | |
| 807 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
| 808 return NGX_CONF_ERROR; | |
| 809 } | |
| 810 | |
| 811 fop = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 812 sizeof(ngx_http_script_file_code_t)); | |
| 813 if (fop == NULL) { | |
| 814 return NGX_CONF_ERROR; | |
| 815 } | |
| 816 | |
| 817 fop->code = ngx_http_script_file_code; | |
| 818 | |
| 819 if (p[1] == 'f') { | |
| 820 fop->op = ngx_http_script_file_plain; | |
| 821 return NGX_CONF_OK; | |
| 822 } | |
| 823 | |
| 669 | 824 if (p[1] == 'd') { |
| 825 fop->op = ngx_http_script_file_dir; | |
| 826 return NGX_CONF_OK; | |
| 827 } | |
| 828 | |
| 829 if (p[1] == 'e') { | |
| 830 fop->op = ngx_http_script_file_exists; | |
| 831 return NGX_CONF_OK; | |
| 832 } | |
| 833 | |
| 834 if (p[1] == 'x') { | |
| 835 fop->op = ngx_http_script_file_exec; | |
| 836 return NGX_CONF_OK; | |
| 837 } | |
| 838 | |
| 631 | 839 if (p[0] == '!') { |
| 840 if (p[2] == 'f') { | |
| 841 fop->op = ngx_http_script_file_not_plain; | |
| 842 return NGX_CONF_OK; | |
| 843 } | |
| 669 | 844 |
| 845 if (p[2] == 'd') { | |
| 846 fop->op = ngx_http_script_file_not_dir; | |
| 847 return NGX_CONF_OK; | |
| 848 } | |
| 849 | |
| 850 if (p[2] == 'e') { | |
| 851 fop->op = ngx_http_script_file_not_exists; | |
| 852 return NGX_CONF_OK; | |
| 853 } | |
| 854 | |
| 855 if (p[2] == 'x') { | |
| 856 fop->op = ngx_http_script_file_not_exec; | |
| 857 return NGX_CONF_OK; | |
| 858 } | |
| 631 | 859 } |
| 860 | |
| 861 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 862 "invalid condition \"%V\"", &value[cur]); | |
| 863 return NGX_CONF_ERROR; | |
| 501 | 864 } |
| 865 | |
| 866 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 867 "invalid condition \"%V\"", &value[cur]); | |
| 868 | |
| 869 return NGX_CONF_ERROR; | |
| 870 } | |
| 871 | |
| 872 | |
| 873 static char * | |
| 874 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
| 875 ngx_str_t *value) | |
| 876 { | |
| 509 | 877 ngx_int_t index; |
| 878 ngx_http_script_var_code_t *var_code; | |
| 501 | 879 |
| 880 value->len--; | |
| 881 value->data++; | |
| 882 | |
| 577 | 883 index = ngx_http_get_variable_index(cf, value); |
| 501 | 884 |
| 577 | 885 if (index == NGX_ERROR) { |
| 886 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
|
887 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
888 |
| 577 | 889 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 890 sizeof(ngx_http_script_var_code_t)); | |
| 891 if (var_code == NULL) { | |
| 892 return NGX_CONF_ERROR; | |
| 485 | 893 } |
| 894 | |
| 577 | 895 var_code->code = ngx_http_script_var_code; |
| 896 var_code->index = index; | |
| 485 | 897 |
| 898 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
|
899 } |
| 485 | 900 |
| 901 | |
| 501 | 902 static char * |
| 903 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 904 { | |
| 577 | 905 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 501 | 906 |
| 637 | 907 ngx_int_t index; |
| 908 ngx_str_t *value; | |
| 909 ngx_http_variable_t *v; | |
| 910 ngx_http_script_var_code_t *vcode; | |
| 911 ngx_http_script_var_handler_code_t *vhcode; | |
| 501 | 912 |
| 913 value = cf->args->elts; | |
| 914 | |
| 915 if (value[1].data[0] != '$') { | |
| 916 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 917 "invalid variable name \"%V\"", &value[1]); | |
| 918 return NGX_CONF_ERROR; | |
| 919 } | |
| 920 | |
| 921 value[1].len--; | |
| 922 value[1].data++; | |
| 923 | |
| 509 | 924 v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGABLE); |
| 501 | 925 if (v == NULL) { |
| 926 return NGX_CONF_ERROR; | |
| 927 } | |
| 928 | |
| 509 | 929 index = ngx_http_get_variable_index(cf, &value[1]); |
| 930 if (index == NGX_ERROR) { | |
| 931 return NGX_CONF_ERROR; | |
| 932 } | |
| 501 | 933 |
| 637 | 934 if (v->get_handler == NULL) { |
| 935 v->get_handler = ngx_http_rewrite_var; | |
| 555 | 936 v->data = index; |
| 937 } | |
| 509 | 938 |
| 577 | 939 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { |
| 940 return NGX_CONF_ERROR; | |
| 515 | 941 } |
| 501 | 942 |
| 637 | 943 if (v->set_handler) { |
| 944 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 945 sizeof(ngx_http_script_var_handler_code_t)); | |
| 946 if (vhcode == NULL) { | |
| 947 return NGX_CONF_ERROR; | |
| 948 } | |
| 949 | |
| 950 vhcode->code = ngx_http_script_var_set_handler_code; | |
| 951 vhcode->handler = v->set_handler; | |
| 952 vhcode->data = v->data; | |
| 953 | |
| 954 return NGX_CONF_OK; | |
| 955 } | |
| 956 | |
| 957 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 958 sizeof(ngx_http_script_var_code_t)); | |
| 959 if (vcode == NULL) { | |
| 501 | 960 return NGX_CONF_ERROR; |
| 961 } | |
| 962 | |
| 637 | 963 vcode->code = ngx_http_script_set_var_code; |
| 964 vcode->index = (uintptr_t) index; | |
| 501 | 965 |
| 966 return NGX_CONF_OK; | |
| 967 } | |
| 577 | 968 |
| 969 | |
| 970 static char * | |
| 971 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
| 972 ngx_str_t *value) | |
| 973 { | |
| 974 ngx_int_t n; | |
| 975 ngx_http_script_compile_t sc; | |
| 976 ngx_http_script_value_code_t *val; | |
| 977 ngx_http_script_complex_value_code_t *complex; | |
| 978 | |
| 979 n = ngx_http_script_variables_count(value); | |
| 980 | |
| 981 if (n == 0) { | |
| 982 val = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 983 sizeof(ngx_http_script_value_code_t)); | |
| 984 if (val == NULL) { | |
| 985 return NGX_CONF_ERROR; | |
| 986 } | |
| 987 | |
| 988 n = ngx_atoi(value->data, value->len); | |
| 989 | |
| 990 if (n == NGX_ERROR) { | |
| 991 n = 0; | |
| 992 } | |
| 993 | |
| 994 val->code = ngx_http_script_value_code; | |
| 995 val->value = (uintptr_t) n; | |
| 996 val->text_len = (uintptr_t) value->len; | |
| 997 val->text_data = (uintptr_t) value->data; | |
| 998 | |
| 999 return NGX_CONF_OK; | |
| 1000 } | |
| 1001 | |
| 1002 complex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 1003 sizeof(ngx_http_script_complex_value_code_t)); | |
| 1004 if (complex == NULL) { | |
| 1005 return NGX_CONF_ERROR; | |
| 1006 } | |
| 1007 | |
| 1008 complex->code = ngx_http_script_complex_value_code; | |
| 1009 complex->lengths = NULL; | |
| 1010 | |
| 1011 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 1012 | |
| 1013 sc.cf = cf; | |
| 1014 sc.source = value; | |
| 1015 sc.lengths = &complex->lengths; | |
| 1016 sc.values = &lcf->codes; | |
| 1017 sc.variables = n; | |
| 1018 sc.complete_lengths = 1; | |
| 1019 | |
| 1020 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 1021 return NGX_CONF_ERROR; | |
| 1022 } | |
| 1023 | |
| 1024 return NGX_CONF_OK; | |
| 1025 } |