Mercurial > hg > nginx
annotate src/http/modules/ngx_http_rewrite_module.c @ 4208:470462cfa31b
Skipping location rewrite phase for server null location.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Thu, 13 Oct 2011 12:43:22 +0000 |
| parents | 7f64de1cc2c0 |
| children | d620f497c50f |
| 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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20 |
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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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41 |
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42 |
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43 static ngx_command_t ngx_http_rewrite_commands[] = { |
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44 |
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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 | |
| 3633 | 55 |NGX_CONF_TAKE12, |
| 485 | 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 { |
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138 ngx_int_t index; |
| 509 | 139 ngx_http_script_code_pt code; |
| 140 ngx_http_script_engine_t *e; | |
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141 ngx_http_core_srv_conf_t *cscf; |
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142 ngx_http_core_main_conf_t *cmcf; |
| 635 | 143 ngx_http_rewrite_loc_conf_t *rlcf; |
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144 |
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145 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); |
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146 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); |
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147 index = cmcf->phase_engine.location_rewrite_index; |
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148 |
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149 if (r->phase_handler == index && r->loc_conf == cscf->ctx->loc_conf) { |
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150 /* skipping location rewrite phase for server null location */ |
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151 return NGX_DECLINED; |
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152 } |
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153 |
| 635 | 154 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); |
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155 |
| 635 | 156 if (rlcf->codes == NULL) { |
| 485 | 157 return NGX_DECLINED; |
| 158 } | |
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159 |
| 509 | 160 e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t)); |
| 501 | 161 if (e == NULL) { |
| 485 | 162 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 163 } | |
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164 |
| 509 | 165 e->sp = ngx_pcalloc(r->pool, |
| 635 | 166 rlcf->stack_size * sizeof(ngx_http_variable_value_t)); |
| 485 | 167 if (e->sp == NULL) { |
| 168 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 169 } | |
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170 |
| 635 | 171 e->ip = rlcf->codes->elts; |
| 509 | 172 e->request = r; |
| 485 | 173 e->quote = 1; |
| 635 | 174 e->log = rlcf->log; |
| 485 | 175 e->status = NGX_DECLINED; |
| 176 | |
| 177 while (*(uintptr_t *) e->ip) { | |
| 509 | 178 code = *(ngx_http_script_code_pt *) e->ip; |
| 485 | 179 code(e); |
| 180 } | |
| 181 | |
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182 if (e->status < NGX_HTTP_BAD_REQUEST) { |
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183 return e->status; |
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184 } |
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185 |
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186 if (r->err_status == 0) { |
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187 return e->status; |
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188 } |
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189 |
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190 return r->err_status; |
| 485 | 191 } |
| 192 | |
| 193 | |
| 573 | 194 static ngx_int_t |
| 195 ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 196 uintptr_t data) | |
| 501 | 197 { |
| 635 | 198 ngx_http_variable_t *var; |
| 199 ngx_http_core_main_conf_t *cmcf; | |
| 200 ngx_http_rewrite_loc_conf_t *rlcf; | |
| 201 | |
| 202 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); | |
| 203 | |
| 204 if (rlcf->uninitialized_variable_warn == 0) { | |
| 205 *v = ngx_http_variable_null_value; | |
| 206 return NGX_OK; | |
| 207 } | |
| 501 | 208 |
| 209 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
| 210 | |
| 211 var = cmcf->variables.elts; | |
| 212 | |
| 213 /* | |
| 214 * the ngx_http_rewrite_module sets variables directly in r->variables, | |
| 519 | 215 * and they should be handled by ngx_http_get_indexed_variable(), |
| 501 | 216 * so the handler is called only if the variable is not initialized |
| 217 */ | |
| 218 | |
| 635 | 219 ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
| 501 | 220 "using uninitialized \"%V\" variable", &var[data].name); |
| 221 | |
| 577 | 222 *v = ngx_http_variable_null_value; |
| 573 | 223 |
| 224 return NGX_OK; | |
| 501 | 225 } |
| 226 | |
| 227 | |
| 487 | 228 static void * |
| 229 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) | |
|
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230 { |
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231 ngx_http_rewrite_loc_conf_t *conf; |
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232 |
| 501 | 233 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); |
| 234 if (conf == NULL) { | |
|
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235 return NULL; |
|
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236 } |
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237 |
| 485 | 238 conf->stack_size = NGX_CONF_UNSET_UINT; |
| 239 conf->log = NGX_CONF_UNSET; | |
| 635 | 240 conf->uninitialized_variable_warn = NGX_CONF_UNSET; |
| 485 | 241 |
|
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242 return conf; |
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243 } |
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244 |
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245 |
| 487 | 246 static char * |
| 247 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
|
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248 { |
| 485 | 249 ngx_http_rewrite_loc_conf_t *prev = parent; |
| 250 ngx_http_rewrite_loc_conf_t *conf = child; | |
| 251 | |
| 509 | 252 uintptr_t *code; |
| 485 | 253 |
| 254 ngx_conf_merge_value(conf->log, prev->log, 0); | |
| 635 | 255 ngx_conf_merge_value(conf->uninitialized_variable_warn, |
| 256 prev->uninitialized_variable_warn, 1); | |
| 663 | 257 ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10); |
| 485 | 258 |
| 259 if (conf->codes == NULL) { | |
| 260 return NGX_CONF_OK; | |
| 261 } | |
| 262 | |
| 263 if (conf->codes == prev->codes) { | |
| 264 return NGX_CONF_OK; | |
| 265 } | |
| 266 | |
| 501 | 267 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); |
| 268 if (code == NULL) { | |
|
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269 return NGX_CONF_ERROR; |
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270 } |
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271 |
| 485 | 272 *code = (uintptr_t) NULL; |
| 273 | |
| 274 return NGX_CONF_OK; | |
| 275 } | |
| 276 | |
|
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277 |
| 509 | 278 static ngx_int_t |
| 681 | 279 ngx_http_rewrite_init(ngx_conf_t *cf) |
| 577 | 280 { |
| 509 | 281 ngx_http_handler_pt *h; |
| 282 ngx_http_core_main_conf_t *cmcf; | |
| 283 | |
| 681 | 284 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
| 509 | 285 |
| 573 | 286 h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers); |
| 287 if (h == NULL) { | |
| 288 return NGX_ERROR; | |
| 289 } | |
| 290 | |
| 291 *h = ngx_http_rewrite_handler; | |
| 292 | |
| 509 | 293 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); |
| 294 if (h == NULL) { | |
| 295 return NGX_ERROR; | |
| 296 } | |
| 297 | |
| 298 *h = ngx_http_rewrite_handler; | |
| 299 | |
| 300 return NGX_OK; | |
| 577 | 301 } |
| 509 | 302 |
| 303 | |
| 487 | 304 static char * |
| 305 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 306 { |
| 577 | 307 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 308 | |
| 3325 | 309 ngx_str_t *value; |
| 509 | 310 ngx_uint_t last; |
| 3325 | 311 ngx_regex_compile_t rc; |
| 509 | 312 ngx_http_script_code_pt *code; |
| 313 ngx_http_script_compile_t sc; | |
| 314 ngx_http_script_regex_code_t *regex; | |
| 315 ngx_http_script_regex_end_code_t *regex_end; | |
| 316 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 485 | 317 |
| 509 | 318 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 319 sizeof(ngx_http_script_regex_code_t)); | |
| 485 | 320 if (regex == NULL) { |
| 321 return NGX_CONF_ERROR; | |
| 322 } | |
|
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323 |
| 509 | 324 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
| 325 | |
|
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326 value = cf->args->elts; |
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327 |
| 3325 | 328 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
| 329 | |
| 330 rc.pattern = value[1]; | |
| 331 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
| 332 rc.err.data = errstr; | |
| 485 | 333 |
| 334 /* TODO: NGX_REGEX_CASELESS */ | |
| 335 | |
| 3325 | 336 regex->regex = ngx_http_regex_compile(cf, &rc); |
| 485 | 337 if (regex->regex == NULL) { |
| 338 return NGX_CONF_ERROR; | |
| 339 } | |
| 340 | |
| 509 | 341 regex->code = ngx_http_script_regex_start_code; |
| 485 | 342 regex->uri = 1; |
| 343 regex->name = value[1]; | |
|
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344 |
| 509 | 345 if (value[2].data[value[2].len - 1] == '?') { |
| 346 | |
| 347 /* the last "?" drops the original arguments */ | |
| 348 value[2].len--; | |
| 349 | |
| 350 } else { | |
| 351 regex->add_args = 1; | |
| 352 } | |
| 353 | |
| 485 | 354 last = 0; |
| 355 | |
|
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356 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0 |
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357 || ngx_strncmp(value[2].data, "https://", sizeof("https://") - 1) == 0 |
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358 || ngx_strncmp(value[2].data, "$scheme", sizeof("$scheme") - 1) == 0) |
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359 { |
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360 regex->status = NGX_HTTP_MOVED_TEMPORARILY; |
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361 regex->redirect = 1; |
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362 last = 1; |
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363 } |
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364 |
| 485 | 365 if (cf->args->nelts == 4) { |
| 366 if (ngx_strcmp(value[3].data, "last") == 0) { | |
| 367 last = 1; | |
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368 |
| 487 | 369 } else if (ngx_strcmp(value[3].data, "break") == 0) { |
| 370 regex->break_cycle = 1; | |
| 371 last = 1; | |
| 372 | |
| 485 | 373 } else if (ngx_strcmp(value[3].data, "redirect") == 0) { |
| 374 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
| 375 regex->redirect = 1; | |
| 376 last = 1; | |
|
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377 |
| 485 | 378 } else if (ngx_strcmp(value[3].data, "permanent") == 0) { |
| 379 regex->status = NGX_HTTP_MOVED_PERMANENTLY; | |
| 380 regex->redirect = 1; | |
| 381 last = 1; | |
|
326
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382 |
| 485 | 383 } else { |
|
326
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384 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 461 | 385 "invalid parameter \"%V\"", &value[3]); |
|
326
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386 return NGX_CONF_ERROR; |
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387 } |
| 485 | 388 } |
|
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389 |
| 509 | 390 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
| 485 | 391 |
| 509 | 392 sc.cf = cf; |
| 393 sc.source = &value[2]; | |
| 394 sc.lengths = ®ex->lengths; | |
| 395 sc.values = &lcf->codes; | |
| 396 sc.variables = ngx_http_script_variables_count(&value[2]); | |
| 397 sc.main = regex; | |
| 398 sc.complete_lengths = 1; | |
| 399 sc.compile_args = !regex->redirect; | |
| 485 | 400 |
| 509 | 401 if (ngx_http_script_compile(&sc) != NGX_OK) { |
| 402 return NGX_CONF_ERROR; | |
| 403 } | |
| 485 | 404 |
| 509 | 405 regex = sc.main; |
|
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406 |
| 509 | 407 regex->size = sc.size; |
| 408 regex->args = sc.args; | |
|
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409 |
| 641 | 410 if (sc.variables == 0 && !sc.dup_capture) { |
| 509 | 411 regex->lengths = NULL; |
| 485 | 412 } |
| 413 | |
| 509 | 414 regex_end = ngx_http_script_add_code(lcf->codes, |
| 415 sizeof(ngx_http_script_regex_end_code_t), | |
| 416 ®ex); | |
| 485 | 417 if (regex_end == NULL) { |
| 418 return NGX_CONF_ERROR; | |
| 419 } | |
| 420 | |
| 509 | 421 regex_end->code = ngx_http_script_regex_end_code; |
| 485 | 422 regex_end->uri = regex->uri; |
| 423 regex_end->args = regex->args; | |
| 509 | 424 regex_end->add_args = regex->add_args; |
| 485 | 425 regex_end->redirect = regex->redirect; |
| 426 | |
| 427 if (last) { | |
| 517 | 428 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); |
| 485 | 429 if (code == NULL) { |
| 430 return NGX_CONF_ERROR; | |
|
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431 } |
|
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432 |
| 3184 | 433 *code = NULL; |
| 485 | 434 } |
| 435 | |
| 436 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 437 - (u_char *) regex; | |
| 438 | |
| 439 return NGX_CONF_OK; | |
| 440 } | |
| 441 | |
| 442 | |
| 487 | 443 static char * |
| 444 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 445 { |
| 577 | 446 ngx_http_rewrite_loc_conf_t *lcf = conf; |
|
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447 |
| 3633 | 448 u_char *p; |
| 449 ngx_str_t *value, *v; | |
| 450 ngx_http_script_return_code_t *ret; | |
| 451 ngx_http_compile_complex_value_t ccv; | |
| 485 | 452 |
| 509 | 453 ret = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 454 sizeof(ngx_http_script_return_code_t)); | |
| 485 | 455 if (ret == NULL) { |
| 456 return NGX_CONF_ERROR; | |
| 457 } | |
| 458 | |
| 459 value = cf->args->elts; | |
| 460 | |
| 3633 | 461 ngx_memzero(ret, sizeof(ngx_http_script_return_code_t)); |
| 462 | |
| 509 | 463 ret->code = ngx_http_script_return_code; |
| 485 | 464 |
| 3633 | 465 p = value[1].data; |
| 466 | |
| 467 ret->status = ngx_atoi(p, value[1].len); | |
| 485 | 468 |
| 469 if (ret->status == (uintptr_t) NGX_ERROR) { | |
| 3633 | 470 |
| 471 if (cf->args->nelts == 2 | |
| 472 && (ngx_strncmp(p, "http://", sizeof("http://") - 1) == 0 | |
| 473 || ngx_strncmp(p, "https://", sizeof("https://") - 1) == 0 | |
| 474 || ngx_strncmp(p, "$scheme", sizeof("$scheme") - 1) == 0)) | |
| 475 { | |
| 476 ret->status = NGX_HTTP_MOVED_TEMPORARILY; | |
| 477 v = &value[1]; | |
| 478 | |
| 479 } else { | |
| 480 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 481 "invalid return code \"%V\"", &value[1]); | |
| 482 return NGX_CONF_ERROR; | |
| 483 } | |
| 484 | |
| 485 } else { | |
| 486 | |
| 487 if (cf->args->nelts == 2) { | |
| 488 return NGX_CONF_OK; | |
| 489 } | |
| 490 | |
| 491 v = &value[2]; | |
| 492 } | |
| 493 | |
| 494 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); | |
| 495 | |
| 496 ccv.cf = cf; | |
| 497 ccv.value = v; | |
| 498 ccv.complex_value = &ret->text; | |
| 499 | |
| 500 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { | |
| 485 | 501 return NGX_CONF_ERROR; |
|
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502 } |
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503 |
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504 return NGX_CONF_OK; |
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505 } |
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506 |
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507 |
| 487 | 508 static char * |
| 527 | 509 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
| 510 { | |
| 511 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
| 512 | |
| 513 ngx_http_script_code_pt *code; | |
| 514 | |
| 515 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); | |
| 516 if (code == NULL) { | |
| 517 return NGX_CONF_ERROR; | |
| 518 } | |
| 519 | |
| 520 *code = ngx_http_script_break_code; | |
| 521 | |
| 522 return NGX_CONF_OK; | |
| 523 } | |
| 524 | |
| 525 | |
| 526 static char * | |
| 487 | 527 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
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528 { |
| 577 | 529 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 485 | 530 |
| 531 void *mconf; | |
| 532 char *rv; | |
| 533 u_char *elts; | |
| 534 ngx_uint_t i; | |
| 535 ngx_conf_t save; | |
| 536 ngx_http_module_t *module; | |
| 537 ngx_http_conf_ctx_t *ctx, *pctx; | |
| 2027 | 538 ngx_http_core_loc_conf_t *clcf, *pclcf; |
| 509 | 539 ngx_http_script_if_code_t *if_code; |
| 485 | 540 ngx_http_rewrite_loc_conf_t *nlcf; |
| 541 | |
| 501 | 542 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
| 543 if (ctx == NULL) { | |
| 485 | 544 return NGX_CONF_ERROR; |
| 545 } | |
| 546 | |
| 547 pctx = cf->ctx; | |
| 548 ctx->main_conf = pctx->main_conf; | |
| 577 | 549 ctx->srv_conf = pctx->srv_conf; |
| 485 | 550 |
| 551 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 552 if (ctx->loc_conf == NULL) { | |
| 553 return NGX_CONF_ERROR; | |
| 554 } | |
| 555 | |
| 556 for (i = 0; ngx_modules[i]; i++) { | |
| 557 if (ngx_modules[i]->type != NGX_HTTP_MODULE) { | |
| 558 continue; | |
| 559 } | |
| 560 | |
| 561 module = ngx_modules[i]->ctx; | |
| 577 | 562 |
| 485 | 563 if (module->create_loc_conf) { |
| 564 | |
| 501 | 565 mconf = module->create_loc_conf(cf); |
| 566 if (mconf == NULL) { | |
| 485 | 567 return NGX_CONF_ERROR; |
| 568 } | |
| 569 | |
| 570 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf; | |
| 571 } | |
| 572 } | |
| 573 | |
| 574 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 575 | |
| 576 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 577 clcf->loc_conf = ctx->loc_conf; | |
| 578 clcf->name = pclcf->name; | |
| 579 clcf->noname = 1; | |
| 580 | |
| 2027 | 581 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { |
| 485 | 582 return NGX_CONF_ERROR; |
| 583 } | |
| 584 | |
| 501 | 585 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
| 485 | 586 return NGX_CONF_ERROR; |
| 587 } | |
| 588 | |
| 509 | 589 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); |
| 485 | 590 if (if_code == NULL) { |
| 3001 | 591 return NGX_CONF_ERROR; |
| 485 | 592 } |
| 593 | |
| 509 | 594 if_code->code = ngx_http_script_if_code; |
| 485 | 595 |
| 596 elts = lcf->codes->elts; | |
| 597 | |
| 598 | |
| 631 | 599 /* the inner directives must be compiled to the same code array */ |
| 485 | 600 |
| 601 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
| 602 nlcf->codes = lcf->codes; | |
| 603 | |
| 604 | |
| 605 save = *cf; | |
| 606 cf->ctx = ctx; | |
| 607 | |
| 608 if (pclcf->name.len == 0) { | |
| 609 if_code->loc_conf = NULL; | |
| 610 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
| 611 | |
| 612 } else { | |
| 613 if_code->loc_conf = ctx->loc_conf; | |
| 614 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
| 615 } | |
| 616 | |
| 617 rv = ngx_conf_parse(cf, NULL); | |
| 618 | |
| 619 *cf = save; | |
| 620 | |
| 621 if (rv != NGX_CONF_OK) { | |
| 622 return rv; | |
| 623 } | |
| 624 | |
| 625 | |
| 626 if (elts != lcf->codes->elts) { | |
| 509 | 627 if_code = (ngx_http_script_if_code_t *) |
| 485 | 628 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); |
| 629 } | |
| 630 | |
| 631 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 632 - (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
|
633 |
| 555 | 634 /* the code array belong to parent block */ |
| 635 | |
| 636 nlcf->codes = NULL; | |
| 637 | |
|
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
638 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
|
639 } |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
640 |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
641 |
| 487 | 642 static char * |
| 501 | 643 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
| 644 { | |
| 631 | 645 u_char *p; |
| 646 size_t len; | |
| 3325 | 647 ngx_str_t *value; |
| 648 ngx_uint_t cur, last; | |
| 649 ngx_regex_compile_t rc; | |
| 577 | 650 ngx_http_script_code_pt *code; |
| 631 | 651 ngx_http_script_file_code_t *fop; |
| 509 | 652 ngx_http_script_regex_code_t *regex; |
| 653 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 501 | 654 |
| 655 value = cf->args->elts; | |
| 656 last = cf->args->nelts - 1; | |
| 657 | |
| 658 if (value[1].len < 1 || value[1].data[0] != '(') { | |
| 659 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 660 "invalid condition \"%V\"", &value[1]); | |
| 661 return NGX_CONF_ERROR; | |
| 662 } | |
| 663 | |
| 664 if (value[1].len == 1) { | |
| 665 cur = 2; | |
| 666 | |
| 667 } else { | |
| 668 cur = 1; | |
| 669 value[1].len--; | |
| 670 value[1].data++; | |
| 671 } | |
| 672 | |
| 673 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
| 674 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 675 "invalid condition \"%V\"", &value[last]); | |
| 676 return NGX_CONF_ERROR; | |
| 677 } | |
| 678 | |
| 679 if (value[last].len == 1) { | |
| 680 last--; | |
| 681 | |
| 682 } else { | |
| 683 value[last].len--; | |
| 684 value[last].data[value[last].len] = '\0'; | |
| 685 } | |
| 686 | |
| 631 | 687 len = value[cur].len; |
| 688 p = value[cur].data; | |
| 689 | |
| 690 if (len > 1 && p[0] == '$') { | |
| 501 | 691 |
| 692 if (cur != last && cur + 2 != last) { | |
| 693 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 631 | 694 "invalid condition \"%V\"", &value[cur]); |
| 501 | 695 return NGX_CONF_ERROR; |
| 696 } | |
| 697 | |
| 577 | 698 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { |
| 501 | 699 return NGX_CONF_ERROR; |
| 700 } | |
| 701 | |
| 702 if (cur == last) { | |
| 703 return NGX_CONF_OK; | |
| 704 } | |
| 705 | |
| 706 cur++; | |
| 707 | |
| 631 | 708 len = value[cur].len; |
| 709 p = value[cur].data; | |
| 710 | |
| 711 if (len == 1 && p[0] == '=') { | |
| 577 | 712 |
| 713 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
| 714 return NGX_CONF_ERROR; | |
| 715 } | |
| 716 | |
| 717 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 718 sizeof(uintptr_t)); | |
| 719 if (code == NULL) { | |
| 720 return NGX_CONF_ERROR; | |
| 721 } | |
| 722 | |
| 723 *code = ngx_http_script_equal_code; | |
| 724 | |
| 725 return NGX_CONF_OK; | |
| 501 | 726 } |
| 727 | |
| 631 | 728 if (len == 2 && p[0] == '!' && p[1] == '=') { |
| 729 | |
| 577 | 730 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { |
| 731 return NGX_CONF_ERROR; | |
| 732 } | |
| 733 | |
| 734 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 735 sizeof(uintptr_t)); | |
| 736 if (code == NULL) { | |
| 737 return NGX_CONF_ERROR; | |
| 738 } | |
| 739 | |
| 740 *code = ngx_http_script_not_equal_code; | |
| 741 return NGX_CONF_OK; | |
| 501 | 742 } |
| 743 | |
| 631 | 744 if ((len == 1 && p[0] == '~') |
| 745 || (len == 2 && p[0] == '~' && p[1] == '*') | |
| 746 || (len == 2 && p[0] == '!' && p[1] == '~') | |
| 747 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) | |
| 577 | 748 { |
| 749 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 750 sizeof(ngx_http_script_regex_code_t)); | |
| 751 if (regex == NULL) { | |
| 752 return NGX_CONF_ERROR; | |
| 753 } | |
| 509 | 754 |
| 577 | 755 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
| 756 | |
| 3325 | 757 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
| 577 | 758 |
| 3325 | 759 rc.pattern = value[last]; |
| 760 rc.options = (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0; | |
| 761 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
| 762 rc.err.data = errstr; | |
| 501 | 763 |
| 3325 | 764 regex->regex = ngx_http_regex_compile(cf, &rc); |
| 577 | 765 if (regex->regex == NULL) { |
| 766 return NGX_CONF_ERROR; | |
| 767 } | |
| 768 | |
| 769 regex->code = ngx_http_script_regex_start_code; | |
| 770 regex->next = sizeof(ngx_http_script_regex_code_t); | |
| 771 regex->test = 1; | |
| 631 | 772 if (p[0] == '!') { |
| 773 regex->negative_test = 1; | |
| 774 } | |
| 577 | 775 regex->name = value[last]; |
| 501 | 776 |
| 577 | 777 return NGX_CONF_OK; |
| 501 | 778 } |
| 779 | |
| 577 | 780 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 781 "unexpected \"%V\" in condition", &value[cur]); | |
| 782 return NGX_CONF_ERROR; | |
| 631 | 783 |
| 784 } else if ((len == 2 && p[0] == '-') | |
| 785 || (len == 3 && p[0] == '!' && p[1] == '-')) | |
| 786 { | |
| 787 if (cur + 1 != last) { | |
| 788 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 789 "invalid condition \"%V\"", &value[cur]); | |
| 790 return NGX_CONF_ERROR; | |
| 791 } | |
| 792 | |
| 793 value[last].data[value[last].len] = '\0'; | |
| 794 value[last].len++; | |
| 795 | |
| 796 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
| 797 return NGX_CONF_ERROR; | |
| 798 } | |
| 799 | |
| 800 fop = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 801 sizeof(ngx_http_script_file_code_t)); | |
| 802 if (fop == NULL) { | |
| 803 return NGX_CONF_ERROR; | |
| 804 } | |
| 805 | |
| 806 fop->code = ngx_http_script_file_code; | |
| 807 | |
| 808 if (p[1] == 'f') { | |
| 809 fop->op = ngx_http_script_file_plain; | |
| 810 return NGX_CONF_OK; | |
| 811 } | |
| 812 | |
| 669 | 813 if (p[1] == 'd') { |
| 814 fop->op = ngx_http_script_file_dir; | |
| 815 return NGX_CONF_OK; | |
| 816 } | |
| 817 | |
| 818 if (p[1] == 'e') { | |
| 819 fop->op = ngx_http_script_file_exists; | |
| 820 return NGX_CONF_OK; | |
| 821 } | |
| 822 | |
| 823 if (p[1] == 'x') { | |
| 824 fop->op = ngx_http_script_file_exec; | |
| 825 return NGX_CONF_OK; | |
| 826 } | |
| 827 | |
| 631 | 828 if (p[0] == '!') { |
| 829 if (p[2] == 'f') { | |
| 830 fop->op = ngx_http_script_file_not_plain; | |
| 831 return NGX_CONF_OK; | |
| 832 } | |
| 669 | 833 |
| 834 if (p[2] == 'd') { | |
| 835 fop->op = ngx_http_script_file_not_dir; | |
| 836 return NGX_CONF_OK; | |
| 837 } | |
| 838 | |
| 839 if (p[2] == 'e') { | |
| 840 fop->op = ngx_http_script_file_not_exists; | |
| 841 return NGX_CONF_OK; | |
| 842 } | |
| 843 | |
| 844 if (p[2] == 'x') { | |
| 845 fop->op = ngx_http_script_file_not_exec; | |
| 846 return NGX_CONF_OK; | |
| 847 } | |
| 631 | 848 } |
| 849 | |
| 850 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 851 "invalid condition \"%V\"", &value[cur]); | |
| 852 return NGX_CONF_ERROR; | |
| 501 | 853 } |
| 854 | |
| 855 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 856 "invalid condition \"%V\"", &value[cur]); | |
| 857 | |
| 858 return NGX_CONF_ERROR; | |
| 859 } | |
| 860 | |
| 861 | |
| 862 static char * | |
| 863 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
| 864 ngx_str_t *value) | |
| 865 { | |
| 509 | 866 ngx_int_t index; |
| 867 ngx_http_script_var_code_t *var_code; | |
| 501 | 868 |
| 869 value->len--; | |
| 870 value->data++; | |
| 871 | |
| 577 | 872 index = ngx_http_get_variable_index(cf, value); |
| 501 | 873 |
| 577 | 874 if (index == NGX_ERROR) { |
| 875 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
|
876 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
877 |
| 577 | 878 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, |
| 879 sizeof(ngx_http_script_var_code_t)); | |
| 880 if (var_code == NULL) { | |
| 881 return NGX_CONF_ERROR; | |
| 485 | 882 } |
| 883 | |
| 577 | 884 var_code->code = ngx_http_script_var_code; |
| 885 var_code->index = index; | |
| 485 | 886 |
| 887 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
|
888 } |
| 485 | 889 |
| 890 | |
| 501 | 891 static char * |
| 892 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 893 { | |
| 577 | 894 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 501 | 895 |
| 637 | 896 ngx_int_t index; |
| 897 ngx_str_t *value; | |
| 898 ngx_http_variable_t *v; | |
| 899 ngx_http_script_var_code_t *vcode; | |
| 900 ngx_http_script_var_handler_code_t *vhcode; | |
| 501 | 901 |
| 902 value = cf->args->elts; | |
| 903 | |
| 904 if (value[1].data[0] != '$') { | |
| 905 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 906 "invalid variable name \"%V\"", &value[1]); | |
| 907 return NGX_CONF_ERROR; | |
| 908 } | |
| 909 | |
| 910 value[1].len--; | |
| 911 value[1].data++; | |
| 912 | |
| 1565 | 913 v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGEABLE); |
| 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 |
|
1189
5e1a8fe79c4b
allow to "set" $http_, $sent_http_, and $upstream_http_ variables
Igor Sysoev <igor@sysoev.ru>
parents:
739
diff
changeset
|
923 if (v->get_handler == NULL |
| 1192 | 924 && ngx_strncasecmp(value[1].data, (u_char *) "http_", 5) != 0 |
| 925 && ngx_strncasecmp(value[1].data, (u_char *) "sent_http_", 10) != 0 | |
| 926 && 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
|
927 { |
| 637 | 928 v->get_handler = ngx_http_rewrite_var; |
| 555 | 929 v->data = index; |
| 930 } | |
| 509 | 931 |
| 577 | 932 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { |
| 933 return NGX_CONF_ERROR; | |
| 515 | 934 } |
| 501 | 935 |
| 637 | 936 if (v->set_handler) { |
| 937 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 938 sizeof(ngx_http_script_var_handler_code_t)); | |
| 939 if (vhcode == NULL) { | |
| 940 return NGX_CONF_ERROR; | |
| 941 } | |
| 942 | |
| 943 vhcode->code = ngx_http_script_var_set_handler_code; | |
| 944 vhcode->handler = v->set_handler; | |
| 945 vhcode->data = v->data; | |
| 946 | |
| 947 return NGX_CONF_OK; | |
| 948 } | |
| 949 | |
| 950 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 951 sizeof(ngx_http_script_var_code_t)); | |
| 952 if (vcode == NULL) { | |
| 501 | 953 return NGX_CONF_ERROR; |
| 954 } | |
| 955 | |
| 637 | 956 vcode->code = ngx_http_script_set_var_code; |
| 957 vcode->index = (uintptr_t) index; | |
| 501 | 958 |
| 959 return NGX_CONF_OK; | |
| 960 } | |
| 577 | 961 |
| 962 | |
| 963 static char * | |
| 964 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
| 965 ngx_str_t *value) | |
| 966 { | |
| 967 ngx_int_t n; | |
| 968 ngx_http_script_compile_t sc; | |
| 969 ngx_http_script_value_code_t *val; | |
| 970 ngx_http_script_complex_value_code_t *complex; | |
| 971 | |
| 972 n = ngx_http_script_variables_count(value); | |
| 973 | |
| 974 if (n == 0) { | |
| 975 val = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 976 sizeof(ngx_http_script_value_code_t)); | |
| 977 if (val == NULL) { | |
| 978 return NGX_CONF_ERROR; | |
| 979 } | |
| 980 | |
| 981 n = ngx_atoi(value->data, value->len); | |
| 982 | |
| 983 if (n == NGX_ERROR) { | |
| 984 n = 0; | |
| 985 } | |
| 986 | |
| 987 val->code = ngx_http_script_value_code; | |
| 988 val->value = (uintptr_t) n; | |
| 989 val->text_len = (uintptr_t) value->len; | |
| 990 val->text_data = (uintptr_t) value->data; | |
| 991 | |
| 992 return NGX_CONF_OK; | |
| 993 } | |
| 994 | |
| 995 complex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
| 996 sizeof(ngx_http_script_complex_value_code_t)); | |
| 997 if (complex == NULL) { | |
| 998 return NGX_CONF_ERROR; | |
| 999 } | |
| 1000 | |
| 1001 complex->code = ngx_http_script_complex_value_code; | |
| 1002 complex->lengths = NULL; | |
| 1003 | |
| 1004 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
| 1005 | |
| 1006 sc.cf = cf; | |
| 1007 sc.source = value; | |
| 1008 sc.lengths = &complex->lengths; | |
| 1009 sc.values = &lcf->codes; | |
| 1010 sc.variables = n; | |
| 1011 sc.complete_lengths = 1; | |
| 1012 | |
| 1013 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
| 1014 return NGX_CONF_ERROR; | |
| 1015 } | |
| 1016 | |
| 1017 return NGX_CONF_OK; | |
| 1018 } |