Mercurial > hg > nginx
annotate src/http/modules/ngx_http_rewrite_module.c @ 501:d4ea69372b94 release-0.1.25
nginx-0.1.25-RELEASE import
*) Bugfix: nginx did run on Linux parisc.
*) Feature: nginx now does not start under FreeBSD if the sysctl
kern.ipc.somaxconn value is too big.
*) Bugfix: if a request was internally redirected by the
ngx_http_index_module module to the ngx_http_proxy_module or
ngx_http_fastcgi_module modules, then the index file was not closed
after request completion.
*) Feature: the "proxy_pass" can be used in location with regular
expression.
*) Feature: the ngx_http_rewrite_filter_module module supports the
condition like "if ($HTTP_USER_AGENT ~ MSIE)".
*) Bugfix: nginx started too slow if the large number of addresses and
text values were used in the "geo" directive.
*) Change: a variable name must be declared as "$name" in the "geo"
directive. The previous variant without "$" is still supported, but
will be removed soon.
*) Feature: the "%{VARIABLE}v" logging parameter.
*) Feature: the "set $name value" directive.
*) Bugfix: gcc 4.0 compatibility.
*) Feature: the --with-openssl-opt=OPTIONS autoconfiguration directive.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Sat, 19 Mar 2005 12:38:37 +0000 |
| parents | src/http/modules/ngx_http_rewrite_handler.c@64d9afb209da |
| children | ee66921ecd47 |
| rev | line source |
|---|---|
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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 ngx_http_rewrite_engine_s ngx_http_rewrite_engine_t; |
| 13 | |
| 14 typedef void (*ngx_http_rewrite_code_pt) (ngx_http_rewrite_engine_t *e); | |
| 15 | |
| 16 | |
| 17 typedef struct { | |
| 18 ngx_str_t name; | |
| 19 ngx_uint_t wildcard; | |
| 20 } ngx_http_rewrite_referer_t; | |
| 21 | |
| 22 | |
| 23 typedef struct { | |
| 501 | 24 ngx_str_t *name; |
| 25 ngx_http_variable_value_t *value; | |
| 26 } ngx_http_rewrite_variable_t; | |
| 27 | |
| 28 | |
| 29 typedef struct { | |
| 485 | 30 ngx_array_t *codes; /* uintptr_t */ |
| 31 ngx_array_t *referers; /* ngx_http_rewrite_referer_t */ | |
| 32 | |
| 33 ngx_uint_t max_captures; | |
| 34 ngx_uint_t stack_size; | |
| 35 | |
| 36 ngx_flag_t log; | |
| 37 | |
| 38 ngx_flag_t no_referer; | |
| 39 } ngx_http_rewrite_loc_conf_t; | |
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42 typedef struct { |
| 485 | 43 ngx_http_rewrite_code_pt code; |
| 44 ngx_regex_t *regex; | |
| 45 uintptr_t size; | |
| 46 uintptr_t ncaptures; | |
| 47 uintptr_t status; | |
| 48 uintptr_t next; | |
| 49 | |
| 501 | 50 uintptr_t test:1; |
| 485 | 51 uintptr_t uri:1; |
| 52 | |
| 53 /* add the r->args to the new arguments */ | |
| 54 uintptr_t args:1; | |
| 55 | |
| 56 uintptr_t redirect:1; | |
| 487 | 57 uintptr_t break_cycle:1; |
| 485 | 58 |
| 59 ngx_str_t name; | |
| 60 } ngx_http_rewrite_regex_code_t; | |
| 61 | |
| 62 | |
| 63 typedef struct { | |
| 64 ngx_http_rewrite_code_pt code; | |
| 65 | |
| 66 uintptr_t uri:1; | |
| 67 | |
| 68 /* add the r->args to the new arguments */ | |
| 69 uintptr_t args:1; | |
| 70 | |
| 71 uintptr_t redirect:1; | |
| 72 } ngx_http_rewrite_regex_end_code_t; | |
| 73 | |
| 74 typedef struct { | |
| 75 ngx_http_rewrite_code_pt code; | |
| 76 uintptr_t n; | |
| 77 } ngx_http_rewrite_copy_capture_code_t; | |
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80 typedef struct { |
| 485 | 81 ngx_http_rewrite_code_pt code; |
| 82 uintptr_t len; | |
| 83 } ngx_http_rewrite_copy_code_t; | |
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85 |
| 485 | 86 typedef struct { |
| 87 ngx_http_rewrite_code_pt code; | |
| 88 uintptr_t status; | |
| 89 uintptr_t null; | |
| 90 } ngx_http_rewrite_return_code_t; | |
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91 |
| 485 | 92 |
| 93 typedef struct { | |
| 94 ngx_http_rewrite_code_pt code; | |
| 95 uintptr_t next; | |
| 96 void **loc_conf; | |
| 97 } ngx_http_rewrite_if_code_t; | |
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100 typedef struct { |
| 485 | 101 ngx_http_rewrite_code_pt code; |
| 501 | 102 uintptr_t value; |
| 103 uintptr_t text_len; | |
| 104 uintptr_t text_data; | |
| 105 } ngx_http_rewrite_value_code_t; | |
| 106 | |
| 107 | |
| 108 typedef struct { | |
| 109 ngx_http_rewrite_code_pt code; | |
| 485 | 110 uintptr_t index; |
| 111 } ngx_http_rewrite_var_code_t; | |
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113 |
| 485 | 114 struct ngx_http_rewrite_engine_s { |
| 115 u_char *ip; | |
| 501 | 116 ngx_http_variable_value_t *sp; |
| 485 | 117 |
| 118 ngx_str_t buf; | |
| 119 ngx_str_t *line; | |
| 120 | |
| 121 u_char *pos; | |
| 122 | |
| 123 /* the start of the rewritten arguments */ | |
| 124 u_char *args; | |
| 125 | |
| 126 unsigned quote:1; | |
| 127 | |
| 128 ngx_int_t status; | |
| 129 | |
| 130 int *captures; | |
| 131 | |
| 132 ngx_http_request_t *request; | |
| 133 ngx_http_rewrite_loc_conf_t *conf; | |
| 134 }; | |
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136 |
| 485 | 137 static ngx_int_t ngx_http_rewrite_init(ngx_cycle_t *cycle); |
| 138 static void *ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf); | |
| 139 static char *ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, | |
| 487 | 140 void *parent, void *child); |
| 485 | 141 static char *ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
| 142 static char *ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 487 | 143 void *conf); |
| 485 | 144 static char *ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, |
| 487 | 145 void *conf); |
| 501 | 146 static char * ngx_http_rewrite_if_condition(ngx_conf_t *cf, |
| 147 ngx_http_rewrite_loc_conf_t *lcf); | |
| 148 static char *ngx_http_rewrite_variable(ngx_conf_t *cf, | |
| 149 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
| 487 | 150 static char *ngx_http_rewrite_valid_referers(ngx_conf_t *cf, |
| 151 ngx_command_t *cmd, void *conf); | |
| 501 | 152 static char * ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, |
| 153 void *conf); | |
| 485 | 154 static void *ngx_http_rewrite_start_code(ngx_pool_t *pool, |
| 487 | 155 ngx_array_t **codes, size_t size); |
| 485 | 156 static void *ngx_http_rewrite_add_code(ngx_array_t *codes, size_t size, |
| 487 | 157 void *code); |
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160 static ngx_command_t ngx_http_rewrite_commands[] = { |
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162 { ngx_string("rewrite"), |
| 485 | 163 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
| 164 |NGX_CONF_TAKE23, | |
| 165 ngx_http_rewrite, | |
| 166 NGX_HTTP_LOC_CONF_OFFSET, | |
| 167 0, | |
| 168 NULL }, | |
| 169 | |
| 170 { ngx_string("return"), | |
| 171 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
| 172 |NGX_CONF_TAKE1, | |
| 173 ngx_http_rewrite_return, | |
| 174 NGX_HTTP_LOC_CONF_OFFSET, | |
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175 0, |
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176 NULL }, |
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177 |
| 485 | 178 { ngx_string("if"), |
| 179 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE, | |
| 180 ngx_http_rewrite_if, | |
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181 NGX_HTTP_LOC_CONF_OFFSET, |
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182 0, |
| 485 | 183 NULL }, |
| 184 | |
| 185 { ngx_string("valid_referers"), | |
| 186 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 187 ngx_http_rewrite_valid_referers, | |
| 188 NGX_HTTP_LOC_CONF_OFFSET, | |
| 189 0, | |
| 190 NULL }, | |
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191 |
| 501 | 192 { ngx_string("set"), |
| 193 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
| 194 |NGX_CONF_TAKE2, | |
| 195 ngx_http_rewrite_set, | |
| 196 NGX_HTTP_LOC_CONF_OFFSET, | |
| 197 0, | |
| 198 NULL }, | |
| 199 | |
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200 { ngx_string("rewrite_log"), |
| 485 | 201 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
| 202 |NGX_CONF_TAKE1, | |
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203 ngx_conf_set_flag_slot, |
| 485 | 204 NGX_HTTP_LOC_CONF_OFFSET, |
| 205 offsetof(ngx_http_rewrite_loc_conf_t, log), | |
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206 NULL }, |
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207 |
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208 ngx_null_command |
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209 }; |
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212 ngx_http_module_t ngx_http_rewrite_module_ctx = { |
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213 NULL, /* pre conf */ |
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214 |
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215 NULL, /* create main configuration */ |
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216 NULL, /* init main configuration */ |
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217 |
| 485 | 218 NULL, /* create server configuration */ |
| 219 NULL, /* merge server configuration */ | |
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220 |
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221 ngx_http_rewrite_create_loc_conf, /* create location configration */ |
| 485 | 222 ngx_http_rewrite_merge_loc_conf /* merge location configration */ |
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223 }; |
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224 |
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225 |
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226 ngx_module_t ngx_http_rewrite_module = { |
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227 NGX_MODULE, |
| 485 | 228 &ngx_http_rewrite_module_ctx, /* module context */ |
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229 ngx_http_rewrite_commands, /* module directives */ |
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230 NGX_HTTP_MODULE, /* module type */ |
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231 ngx_http_rewrite_init, /* init module */ |
| 485 | 232 NULL /* init process */ |
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233 }; |
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234 |
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235 |
| 485 | 236 #define ngx_http_rewrite_exit (u_char *) &ngx_http_rewrite_exit_code |
| 237 | |
| 238 uintptr_t ngx_http_rewrite_exit_code = (uintptr_t) NULL; | |
| 239 | |
| 501 | 240 static ngx_http_variable_value_t ngx_http_rewrite_null_value = |
| 241 { 0, ngx_string("") }; | |
| 242 | |
| 485 | 243 |
| 487 | 244 static ngx_int_t |
| 245 ngx_http_rewrite_handler(ngx_http_request_t *r) | |
|
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246 { |
| 485 | 247 ngx_http_rewrite_code_pt code; |
| 248 ngx_http_rewrite_engine_t *e; | |
| 249 ngx_http_rewrite_loc_conf_t *cf; | |
|
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250 |
| 485 | 251 cf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); |
|
216
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252 |
| 485 | 253 if (cf->codes == NULL) { |
| 254 return NGX_DECLINED; | |
| 255 } | |
|
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256 |
| 501 | 257 e = ngx_palloc(r->pool, sizeof(ngx_http_rewrite_engine_t)); |
| 258 if (e == NULL) { | |
| 485 | 259 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| 260 } | |
|
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261 |
| 501 | 262 e->sp = ngx_palloc(r->pool, |
| 263 cf->stack_size * sizeof(ngx_http_variable_value_t)); | |
| 485 | 264 if (e->sp == NULL) { |
| 265 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 266 } | |
|
326
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267 |
| 485 | 268 if (cf->max_captures) { |
| 269 e->captures = ngx_palloc(r->pool, cf->max_captures * sizeof(int)); | |
| 270 if (e->captures == NULL) { | |
|
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271 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
|
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272 } |
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273 |
| 485 | 274 } else { |
| 275 e->captures = NULL; | |
| 276 } | |
| 277 | |
| 278 e->ip = cf->codes->elts; | |
| 279 e->buf.len = 0; | |
| 280 e->buf.data = NULL; | |
| 281 e->line = NULL; | |
| 282 e->pos = NULL; | |
| 283 e->args = NULL; | |
| 284 e->quote = 1; | |
| 285 e->status = NGX_DECLINED; | |
| 286 e->request = r; | |
| 287 e->conf = cf; | |
| 288 | |
| 289 while (*(uintptr_t *) e->ip) { | |
| 290 code = *(ngx_http_rewrite_code_pt *) e->ip; | |
| 291 code(e); | |
| 292 } | |
| 293 | |
| 294 return e->status; | |
| 295 } | |
| 296 | |
| 297 | |
| 487 | 298 static void |
| 299 ngx_http_rewrite_regex_start_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 300 { |
| 301 ngx_int_t rc; | |
| 302 ngx_uint_t n; | |
| 303 ngx_http_request_t *r; | |
| 304 ngx_http_rewrite_regex_code_t *code; | |
| 305 | |
| 306 code = (ngx_http_rewrite_regex_code_t *) e->ip; | |
| 307 | |
| 308 r = e->request; | |
| 309 | |
| 310 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 501 | 311 "http rewrite regex: \"%V\"", &code->name); |
| 485 | 312 |
| 313 if (code->uri) { | |
| 314 e->line = &r->uri; | |
| 315 } else { | |
| 501 | 316 e->sp--; |
| 317 e->line = &e->sp->text; | |
| 485 | 318 } |
| 319 | |
| 320 rc = ngx_regex_exec(code->regex, e->line, e->captures, code->ncaptures); | |
| 321 | |
| 322 if (rc == NGX_REGEX_NO_MATCHED) { | |
| 323 if (e->conf->log) { | |
| 324 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
| 325 "\"%V\" does not match \"%V\"", &code->name, e->line); | |
| 326 } | |
| 327 | |
| 501 | 328 if (code->test) { |
| 329 e->sp->value = 0; | |
| 330 e->sp->text.len = 0; | |
| 331 e->sp->text.data = (u_char *) ""; | |
| 332 e->sp++; | |
| 333 | |
| 334 e->ip += sizeof(ngx_http_rewrite_regex_code_t); | |
| 335 return; | |
| 336 } | |
| 337 | |
| 485 | 338 e->ip += code->next; |
| 339 return; | |
| 340 } | |
| 341 | |
| 342 if (rc < 0) { | |
| 343 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
| 344 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"", | |
| 345 rc, e->line, &code->name); | |
| 346 | |
| 347 e->ip = ngx_http_rewrite_exit; | |
| 348 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 349 return; | |
| 350 } | |
| 351 | |
| 352 if (e->conf->log) { | |
| 353 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
| 354 "\"%V\" matches \"%V\"", &code->name, e->line); | |
| 355 } | |
| 356 | |
| 501 | 357 if (code->test) { |
| 358 e->sp->value = 1; | |
| 359 e->sp->text.len = 1; | |
| 360 e->sp->text.data = (u_char *) "1"; | |
| 361 e->sp++; | |
| 362 | |
| 363 e->ip += sizeof(ngx_http_rewrite_regex_code_t); | |
| 364 return; | |
| 365 } | |
| 366 | |
| 485 | 367 if (code->status) { |
| 368 e->status = code->status; | |
| 369 | |
| 370 if (!code->redirect) { | |
| 371 e->ip = ngx_http_rewrite_exit; | |
| 372 return; | |
| 373 } | |
| 374 } | |
| 375 | |
| 376 e->buf.len = code->size; | |
|
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377 |
| 485 | 378 if (code->uri) { |
| 487 | 379 if (!code->break_cycle) { |
| 380 r->uri_changed = 1; | |
| 381 } | |
| 485 | 382 |
| 383 if (rc && (r->quoted_uri || r->plus_in_uri)) { | |
| 384 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 385 NGX_ESCAPE_ARGS); | |
| 386 } | |
| 387 } | |
| 388 | |
| 389 for (n = 1; n < (ngx_uint_t) rc; n++) { | |
| 390 e->buf.len += e->captures[2 * n + 1] - e->captures[2 * n]; | |
| 391 } | |
| 392 | |
| 393 if (code->args && r->args.len) { | |
| 394 e->buf.len += r->args.len + 1; | |
| 395 } | |
| 396 | |
| 501 | 397 e->buf.data = ngx_palloc(r->pool, e->buf.len); |
| 398 if (e->buf.data == NULL) { | |
| 485 | 399 e->ip = ngx_http_rewrite_exit; |
| 400 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 401 return; | |
| 402 } | |
| 403 | |
| 404 e->quote = code->redirect; | |
| 405 | |
| 406 e->pos = e->buf.data; | |
| 407 | |
| 408 e->ip += sizeof(ngx_http_rewrite_regex_code_t); | |
| 409 } | |
| 410 | |
| 411 | |
| 487 | 412 static void |
| 413 ngx_http_rewrite_regex_end_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 414 { |
| 415 ngx_http_request_t *r; | |
| 416 ngx_http_rewrite_regex_end_code_t *code; | |
| 417 | |
| 418 code = (ngx_http_rewrite_regex_end_code_t *) e->ip; | |
| 419 | |
| 420 r = e->request; | |
|
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421 |
| 485 | 422 e->quote = 0; |
| 423 | |
| 424 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 501 | 425 "http rewrite regex end"); |
| 485 | 426 |
| 427 if (e->args) { | |
| 428 e->buf.len = e->args - e->buf.data; | |
| 429 | |
| 430 if (code->args && r->args.len) { | |
| 431 *e->pos++ = '&'; | |
| 432 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len); | |
| 433 } | |
| 434 | |
| 435 r->args.len = e->pos - e->args; | |
| 436 r->args.data = e->args; | |
| 437 | |
| 438 e->args = NULL; | |
|
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439 |
| 485 | 440 } else { |
| 441 if (code->args && r->args.len) { | |
| 487 | 442 *e->pos++ = '?'; |
| 485 | 443 e->pos = ngx_cpymem(e->pos, r->args.data, r->args.len); |
| 444 } | |
| 445 | |
| 446 e->buf.len = e->pos - e->buf.data; | |
| 447 } | |
| 483 | 448 |
| 485 | 449 if (!code->redirect) { |
| 450 if (e->conf->log) { | |
| 451 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
| 452 "rewritten data: \"%V\", args: \"%V\"", | |
| 453 &e->buf, &r->args); | |
| 454 } | |
| 455 | |
| 456 if (code->uri) { | |
| 457 r->uri = e->buf; | |
| 458 | |
| 459 if (ngx_http_set_exten(r) != NGX_OK) { | |
| 460 e->ip = ngx_http_rewrite_exit; | |
| 461 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 462 return; | |
|
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463 } |
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464 } |
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465 |
| 485 | 466 e->ip += sizeof(ngx_http_rewrite_regex_end_code_t); |
| 467 return; | |
|
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468 } |
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469 |
| 485 | 470 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, |
| 471 "rewritten redirect: \"%V\"", &e->buf); | |
|
437
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472 |
| 501 | 473 r->headers_out.location = ngx_list_push(&r->headers_out.headers); |
| 474 if (r->headers_out.location == NULL) { | |
| 485 | 475 e->ip = ngx_http_rewrite_exit; |
| 476 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 477 return; | |
|
437
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478 } |
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479 |
| 485 | 480 if (e->buf.data[0] != '/') { |
|
437
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481 r->headers_out.location->key.len = sizeof("Location") - 1; |
|
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482 r->headers_out.location->key.data = (u_char *) "Location"; |
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483 } |
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484 |
| 485 | 485 r->headers_out.location->value = e->buf; |
| 486 | |
| 487 e->ip += sizeof(ngx_http_rewrite_regex_end_code_t); | |
| 488 } | |
| 489 | |
| 490 | |
| 487 | 491 static void |
| 492 ngx_http_rewrite_copy_capture_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 493 { |
| 494 ngx_http_rewrite_copy_capture_code_t *code; | |
| 495 | |
| 496 code = (ngx_http_rewrite_copy_capture_code_t *) e->ip; | |
|
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497 |
| 485 | 498 e->ip += sizeof(ngx_http_rewrite_copy_capture_code_t); |
| 499 | |
| 500 if ((e->args || e->quote) | |
| 501 && (e->request->quoted_uri || e->request->plus_in_uri)) | |
| 502 { | |
| 503 e->pos = (u_char *) ngx_escape_uri(e->pos, | |
| 504 &e->line->data[e->captures[code->n]], | |
| 505 e->captures[code->n + 1] - e->captures[code->n], | |
| 506 NGX_ESCAPE_ARGS); | |
| 507 } else { | |
| 508 e->pos = ngx_cpymem(e->pos, &e->line->data[e->captures[code->n]], | |
| 509 e->captures[code->n + 1] - e->captures[code->n]); | |
|
437
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510 } |
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511 |
| 485 | 512 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| 513 "http rewrite capture: \"%V\"", &e->buf); | |
| 514 } | |
| 515 | |
| 516 | |
| 487 | 517 static void |
| 518 ngx_http_rewrite_copy_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 519 { |
| 520 ngx_http_rewrite_copy_code_t *code; | |
| 521 | |
| 522 code = (ngx_http_rewrite_copy_code_t *) e->ip; | |
| 523 | |
| 524 e->pos = ngx_cpymem(e->pos, e->ip + sizeof(ngx_http_rewrite_copy_code_t), | |
| 525 code->len); | |
| 526 | |
| 527 e->ip += sizeof(ngx_http_rewrite_copy_code_t) | |
| 501 | 528 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1)); |
| 485 | 529 |
| 530 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 531 "http rewrite copy: \"%V\"", &e->buf); | |
| 532 } | |
| 533 | |
| 534 | |
| 487 | 535 static void |
| 536 ngx_http_rewrite_start_args_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 537 { |
| 538 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 539 "http rewrite args"); | |
| 540 | |
| 541 e->args = e->pos; | |
| 542 e->ip += sizeof(uintptr_t); | |
| 543 } | |
| 544 | |
|
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545 |
| 487 | 546 static void |
| 547 ngx_http_rewrite_return_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 548 { |
| 549 ngx_http_rewrite_return_code_t *code; | |
| 550 | |
| 551 code = (ngx_http_rewrite_return_code_t *) e->ip; | |
| 552 | |
| 553 e->status = code->status; | |
| 554 | |
| 555 e->ip += sizeof(ngx_http_rewrite_return_code_t) - sizeof(uintptr_t); | |
| 556 } | |
| 557 | |
| 558 | |
| 487 | 559 static void |
| 560 ngx_http_rewrite_if_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 561 { |
| 562 ngx_http_rewrite_if_code_t *code; | |
| 563 | |
| 564 code = (ngx_http_rewrite_if_code_t *) e->ip; | |
| 565 | |
| 566 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 567 "http rewrite if"); | |
| 568 | |
| 501 | 569 e->sp--; |
| 570 | |
| 571 if (e->sp->value) { | |
| 485 | 572 if (code->loc_conf) { |
| 573 e->request->loc_conf = code->loc_conf; | |
| 574 } | |
| 575 | |
| 576 e->ip += sizeof(ngx_http_rewrite_if_code_t); | |
| 577 return; | |
| 578 } | |
| 579 | |
| 580 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 581 "http rewrite if false"); | |
| 582 | |
| 583 e->ip += code->next; | |
|
437
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584 } |
|
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585 |
|
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586 |
| 487 | 587 static void |
| 501 | 588 ngx_http_rewrite_value_code(ngx_http_rewrite_engine_t *e) |
| 589 { | |
| 590 ngx_http_rewrite_value_code_t *code; | |
| 591 | |
| 592 code = (ngx_http_rewrite_value_code_t *) e->ip; | |
| 593 | |
| 594 e->ip += sizeof(ngx_http_rewrite_value_code_t); | |
| 595 | |
| 596 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 597 "http rewrite value"); | |
| 598 | |
| 599 e->sp->value = (ngx_uint_t) code->value; | |
| 600 e->sp->text.len = (size_t) code->text_len; | |
| 601 e->sp->text.data = (u_char *) code->text_data; | |
| 602 e->sp++; | |
| 603 } | |
| 604 | |
| 605 | |
| 606 static void | |
| 607 ngx_http_rewrite_set_var_code(ngx_http_rewrite_engine_t *e) | |
| 608 { | |
| 609 ngx_http_request_t *r; | |
| 610 ngx_http_variable_value_t *value; | |
| 611 ngx_http_core_main_conf_t *cmcf; | |
| 612 ngx_http_rewrite_var_code_t *code; | |
| 613 | |
| 614 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 615 "http rewrite set var"); | |
| 616 | |
| 617 code = (ngx_http_rewrite_var_code_t *) e->ip; | |
| 618 | |
| 619 e->ip += sizeof(ngx_http_rewrite_var_code_t); | |
| 620 | |
| 621 r = e->request; | |
| 622 | |
| 623 if (r->variables == NULL) { | |
| 624 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
| 625 | |
| 626 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts | |
| 627 * sizeof(ngx_http_variable_value_t *)); | |
| 628 if (r->variables == NULL) { | |
| 629 e->ip = ngx_http_rewrite_exit; | |
| 630 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 631 return; | |
| 632 } | |
| 633 } | |
| 634 | |
| 635 value = ngx_palloc(r->pool, sizeof(ngx_http_variable_value_t)); | |
| 636 if (value == NULL) { | |
| 637 e->ip = ngx_http_rewrite_exit; | |
| 638 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 639 return; | |
| 640 } | |
| 641 | |
| 642 e->sp--; | |
| 643 | |
| 644 *value = *e->sp; | |
| 645 | |
| 646 r->variables[code->index] = value; | |
| 647 } | |
| 648 | |
| 649 | |
| 650 static void | |
| 487 | 651 ngx_http_rewrite_var_code(ngx_http_rewrite_engine_t *e) |
|
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|
652 { |
| 485 | 653 ngx_http_variable_value_t *value; |
| 654 ngx_http_rewrite_var_code_t *code; | |
| 655 | |
| 656 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 657 "http rewrite var"); | |
| 658 | |
| 659 code = (ngx_http_rewrite_var_code_t *) e->ip; | |
|
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|
660 |
| 485 | 661 e->ip += sizeof(ngx_http_rewrite_var_code_t); |
| 662 | |
| 501 | 663 value = ngx_http_get_indexed_variable(e->request, code->index); |
| 664 | |
| 665 if (value == NULL || value == NGX_HTTP_VARIABLE_NOT_FOUND) { | |
| 666 e->sp->value = 0; | |
| 667 e->sp->text.len = 0; | |
| 668 e->sp->text.data = (u_char *) ""; | |
| 669 e->sp++; | |
| 670 | |
| 485 | 671 return; |
|
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|
672 } |
|
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|
673 |
| 501 | 674 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, |
| 675 "http rewrite var: %ui, \"%V\"", value->value, &value->text); | |
|
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676 |
| 501 | 677 *e->sp = *value; |
| 678 e->sp++; | |
|
216
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|
679 } |
|
f1d0e5f09c1e
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parents:
diff
changeset
|
680 |
|
f1d0e5f09c1e
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parents:
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|
681 |
| 487 | 682 static void |
| 683 ngx_http_rewrite_invalid_referer_code(ngx_http_rewrite_engine_t *e) | |
|
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684 { |
| 485 | 685 u_char *ref; |
| 686 size_t len; | |
| 687 ngx_uint_t i, n; | |
| 688 ngx_http_request_t *r; | |
| 689 ngx_http_rewrite_referer_t *refs; | |
| 690 ngx_http_rewrite_loc_conf_t *cf; | |
| 691 | |
| 692 r = e->request; | |
| 693 | |
| 694 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 695 "http rewrite invalid referer"); | |
| 696 | |
| 697 cf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); | |
| 698 | |
| 699 e->ip += sizeof(uintptr_t); | |
| 700 | |
| 701 if (cf->referers == NULL) { | |
| 501 | 702 e->sp->value = 0; |
| 703 e->sp->text.len = 0; | |
| 704 e->sp->text.data = (u_char *) ""; | |
| 705 e->sp++; | |
| 706 | |
| 485 | 707 return; |
| 708 } | |
| 709 | |
| 710 if (r->headers_in.referer == NULL) { | |
| 711 if (cf->no_referer) { | |
| 501 | 712 e->sp->value = 0; |
| 713 e->sp->text.len = 0; | |
| 714 e->sp->text.data = (u_char *) ""; | |
| 715 e->sp++; | |
| 716 | |
| 485 | 717 return; |
| 718 } else { | |
| 501 | 719 e->sp->value = 1; |
| 720 e->sp->text.len = 1; | |
| 721 e->sp->text.data = (u_char *) "1"; | |
| 722 e->sp++; | |
| 723 | |
| 485 | 724 return; |
| 725 } | |
| 726 } | |
| 727 | |
| 728 len = r->headers_in.referer->value.len; | |
| 729 ref = r->headers_in.referer->value.data; | |
| 730 | |
| 731 if (len < sizeof("http://i.ru") - 1 | |
| 732 || (ngx_strncasecmp(ref, "http://", 7) != 0)) | |
| 733 { | |
| 501 | 734 e->sp->value = 1; |
| 735 e->sp->text.len = 1; | |
| 736 e->sp->text.data = (u_char *) "1"; | |
| 737 e->sp++; | |
| 738 | |
| 485 | 739 return; |
| 740 } | |
| 741 | |
| 742 len -= 7; | |
| 743 ref += 7; | |
| 744 | |
| 745 refs = cf->referers->elts; | |
| 746 for (i = 0; i < cf->referers->nelts; i++ ){ | |
| 747 | |
| 748 if (refs[i].name.len > len) { | |
| 749 continue; | |
| 750 } | |
|
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751 |
| 485 | 752 if (refs[i].wildcard) { |
| 753 for (n = 0; n < len; n++) { | |
| 754 if (ref[n] == '/' || ref[n] == ':') { | |
| 755 break; | |
| 756 } | |
| 757 | |
| 758 if (ref[n] != '.') { | |
| 759 continue; | |
| 760 } | |
| 761 | |
| 762 if (ngx_strncmp(&ref[n], refs[i].name.data, | |
| 763 refs[i].name.len) == 0) | |
| 764 { | |
| 501 | 765 e->sp->value = 0; |
| 766 e->sp->text.len = 0; | |
| 767 e->sp->text.data = (u_char *) ""; | |
| 768 e->sp++; | |
| 769 | |
| 485 | 770 return; |
| 771 } | |
| 772 } | |
| 773 | |
| 774 } else { | |
| 775 if (ngx_strncasecmp(refs[i].name.data, ref, refs[i].name.len) == 0) | |
| 776 { | |
| 501 | 777 e->sp->value = 0; |
| 778 e->sp->text.len = 0; | |
| 779 e->sp->text.data = (u_char *) ""; | |
| 780 e->sp++; | |
| 781 | |
| 485 | 782 return; |
| 783 } | |
| 784 } | |
| 785 } | |
|
325
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|
786 |
| 501 | 787 e->sp->value = 1; |
| 788 e->sp->text.len = 1; | |
| 789 e->sp->text.data = (u_char *) "1"; | |
| 790 e->sp++; | |
| 485 | 791 } |
| 792 | |
| 793 | |
| 487 | 794 static void |
| 795 ngx_http_rewrite_nop_code(ngx_http_rewrite_engine_t *e) | |
| 485 | 796 { |
| 797 e->ip += sizeof(uintptr_t); | |
|
325
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290
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|
798 } |
|
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parents:
290
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|
799 |
|
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|
800 |
| 501 | 801 static ngx_http_variable_value_t * |
| 802 ngx_http_rewrite_var(ngx_http_request_t *r, uintptr_t data) | |
| 803 { | |
| 804 ngx_http_variable_t *var; | |
| 805 ngx_http_core_main_conf_t *cmcf; | |
| 806 | |
| 807 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
| 808 | |
| 809 var = cmcf->variables.elts; | |
| 810 | |
| 811 /* | |
| 812 * the ngx_http_rewrite_module sets variables directly in r->variables, | |
| 813 * and they should be handle by ngx_http_get_indexed_variable(), | |
| 814 * so the handler is called only if the variable is not initialized | |
| 815 */ | |
| 816 | |
| 817 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
| 818 "using uninitialized \"%V\" variable", &var[data].name); | |
| 819 | |
| 820 return &ngx_http_rewrite_null_value; | |
| 821 } | |
| 822 | |
| 823 | |
| 487 | 824 static ngx_int_t |
| 825 ngx_http_rewrite_init(ngx_cycle_t *cycle) | |
| 485 | 826 { |
| 827 ngx_http_handler_pt *h; | |
| 828 ngx_http_core_main_conf_t *cmcf; | |
| 829 | |
| 830 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module); | |
| 831 | |
| 501 | 832 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); |
| 485 | 833 if (h == NULL) { |
| 834 return NGX_ERROR; | |
| 835 } | |
| 836 | |
| 837 *h = ngx_http_rewrite_handler; | |
| 838 | |
| 839 return NGX_OK; | |
| 840 } | |
| 841 | |
| 842 | |
| 487 | 843 static void * |
| 844 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) | |
|
437
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parents:
396
diff
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|
845 { |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
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parents:
396
diff
changeset
|
846 ngx_http_rewrite_loc_conf_t *conf; |
|
470270fa84d2
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parents:
396
diff
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|
847 |
| 501 | 848 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); |
| 849 if (conf == NULL) { | |
|
437
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parents:
396
diff
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|
850 return NGX_CONF_ERROR; |
|
470270fa84d2
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parents:
396
diff
changeset
|
851 } |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
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parents:
396
diff
changeset
|
852 |
| 485 | 853 conf->stack_size = NGX_CONF_UNSET_UINT; |
| 854 conf->log = NGX_CONF_UNSET; | |
| 855 conf->no_referer = NGX_CONF_UNSET; | |
| 856 | |
|
437
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parents:
396
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|
857 return conf; |
|
470270fa84d2
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parents:
396
diff
changeset
|
858 } |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
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parents:
396
diff
changeset
|
859 |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
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parents:
396
diff
changeset
|
860 |
| 487 | 861 static char * |
| 862 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
|
216
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parents:
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|
863 { |
| 485 | 864 ngx_http_rewrite_loc_conf_t *prev = parent; |
| 865 ngx_http_rewrite_loc_conf_t *conf = child; | |
| 866 | |
| 867 uintptr_t *code, *last; | |
| 868 ngx_http_rewrite_regex_code_t *regex; | |
| 869 | |
| 870 ngx_conf_merge_value(conf->log, prev->log, 0); | |
| 871 ngx_conf_merge_unsigned_value(conf->stack_size, prev->stack_size, 10); | |
| 872 | |
| 873 if (conf->referers == NULL) { | |
| 874 conf->referers = prev->referers; | |
| 875 ngx_conf_merge_value(conf->no_referer, prev->no_referer, 0); | |
| 876 } | |
| 877 | |
| 499 | 878 if (conf->no_referer == NGX_CONF_UNSET) { |
| 879 conf->no_referer = 0; | |
| 880 } | |
| 881 | |
| 485 | 882 if (conf->codes == NULL) { |
| 883 return NGX_CONF_OK; | |
| 884 } | |
| 885 | |
| 886 if (conf->codes == prev->codes) { | |
| 887 return NGX_CONF_OK; | |
| 888 } | |
| 889 | |
| 890 code = conf->codes->elts; | |
| 891 last = (uintptr_t *) ((u_char *) code + conf->codes->nelts); | |
|
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parents:
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changeset
|
892 |
| 485 | 893 while (code < last) { |
| 894 if (*code == (uintptr_t) NULL) { | |
| 895 return NGX_CONF_OK; | |
| 896 } | |
| 897 | |
| 898 if (*code == (uintptr_t) &ngx_http_rewrite_regex_start_code) { | |
| 899 regex = (ngx_http_rewrite_regex_code_t *) code; | |
| 900 if (conf->max_captures < regex->ncaptures) { | |
| 901 conf->max_captures = regex->ncaptures; | |
| 902 } | |
| 903 code = (uintptr_t *) ((u_char *) code + regex->next); | |
| 501 | 904 continue; |
| 485 | 905 } |
| 906 | |
| 907 if (*code == (uintptr_t) &ngx_http_rewrite_if_code) { | |
| 908 code += sizeof(ngx_http_rewrite_if_code_t) / sizeof(uintptr_t); | |
| 501 | 909 continue; |
| 485 | 910 } |
|
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parents:
diff
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|
911 |
| 485 | 912 if (*code == (uintptr_t) &ngx_http_rewrite_return_code) { |
| 913 code += sizeof(ngx_http_rewrite_return_code_t) / sizeof(uintptr_t); | |
| 501 | 914 continue; |
| 915 } | |
| 916 | |
| 917 if (*code == (uintptr_t) &ngx_http_rewrite_set_var_code) { | |
| 918 code += sizeof(ngx_http_rewrite_var_code_t) / sizeof(uintptr_t); | |
| 919 continue; | |
| 485 | 920 } |
| 921 | |
| 922 if (*code == (uintptr_t) &ngx_http_rewrite_var_code) { | |
| 923 code += sizeof(ngx_http_rewrite_var_code_t) / sizeof(uintptr_t); | |
| 501 | 924 continue; |
| 925 } | |
| 926 | |
| 927 if (*code == (uintptr_t) &ngx_http_rewrite_value_code) { | |
| 928 code += sizeof(ngx_http_rewrite_value_code_t) / sizeof(uintptr_t); | |
| 929 continue; | |
| 485 | 930 } |
| 931 | |
| 932 if (*code == (uintptr_t) &ngx_http_rewrite_invalid_referer_code) { | |
| 933 code++; | |
| 501 | 934 continue; |
| 485 | 935 } |
| 936 | |
| 937 if (*code == (uintptr_t) &ngx_http_rewrite_nop_code) { | |
| 938 code++; | |
| 501 | 939 continue; |
| 485 | 940 } |
| 501 | 941 |
| 942 #if (NGX_DEBUG) | |
| 943 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 944 "unknown rewrite code: %p", *code); | |
| 945 return NGX_CONF_ERROR; | |
| 946 #endif | |
| 485 | 947 } |
| 948 | |
| 501 | 949 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); |
| 950 if (code == NULL) { | |
|
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parents:
diff
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|
951 return NGX_CONF_ERROR; |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
diff
changeset
|
952 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
953 |
| 485 | 954 *code = (uintptr_t) NULL; |
| 955 | |
| 956 return NGX_CONF_OK; | |
| 957 } | |
| 958 | |
|
216
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parents:
diff
changeset
|
959 |
| 487 | 960 static char * |
| 961 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 962 { |
| 963 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
| 964 | |
| 965 u_char *data; | |
| 966 size_t len, size; | |
| 967 ngx_str_t *value, err; | |
| 501 | 968 ngx_int_t n; |
| 969 ngx_uint_t i, last; | |
| 485 | 970 ngx_http_rewrite_code_pt *code; |
| 971 ngx_http_rewrite_copy_code_t *copy; | |
| 972 ngx_http_rewrite_regex_code_t *regex; | |
| 973 ngx_http_rewrite_regex_end_code_t *regex_end; | |
| 974 ngx_http_rewrite_copy_capture_code_t *copy_capture; | |
| 975 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 976 | |
| 977 regex = ngx_http_rewrite_start_code(cf->pool, &lcf->codes, | |
| 978 sizeof(ngx_http_rewrite_regex_code_t)); | |
| 979 if (regex == NULL) { | |
| 980 return NGX_CONF_ERROR; | |
| 981 } | |
|
216
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parents:
diff
changeset
|
982 |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
diff
changeset
|
983 value = cf->args->elts; |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
diff
changeset
|
984 |
| 485 | 985 err.len = NGX_MAX_CONF_ERRSTR; |
| 986 err.data = errstr; | |
| 987 | |
| 988 /* TODO: NGX_REGEX_CASELESS */ | |
| 989 | |
| 990 regex->regex = ngx_regex_compile(&value[1], 0, cf->pool, &err); | |
| 991 | |
| 992 if (regex->regex == NULL) { | |
| 993 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data); | |
| 994 return NGX_CONF_ERROR; | |
| 995 } | |
| 996 | |
| 997 regex->code = ngx_http_rewrite_regex_start_code; | |
| 998 regex->size = 0; | |
| 999 regex->ncaptures = 0; | |
| 1000 regex->status = 0; | |
| 501 | 1001 regex->test = 0; |
| 485 | 1002 regex->uri = 1; |
| 1003 regex->args = 1; | |
| 1004 regex->redirect = 0; | |
| 1005 regex->name = value[1]; | |
|
216
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parents:
diff
changeset
|
1006 |
| 485 | 1007 last = 0; |
| 1008 | |
| 1009 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0) { | |
| 1010 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
| 1011 regex->redirect = 1; | |
| 1012 last = 1; | |
| 1013 } | |
| 1014 | |
| 1015 if (cf->args->nelts == 4) { | |
| 1016 if (ngx_strcmp(value[3].data, "last") == 0) { | |
| 1017 last = 1; | |
|
216
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nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1018 |
| 487 | 1019 } else if (ngx_strcmp(value[3].data, "break") == 0) { |
| 1020 regex->break_cycle = 1; | |
| 1021 last = 1; | |
| 1022 | |
| 485 | 1023 } else if (ngx_strcmp(value[3].data, "redirect") == 0) { |
| 1024 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
| 1025 regex->redirect = 1; | |
| 1026 last = 1; | |
|
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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parents:
325
diff
changeset
|
1027 |
| 485 | 1028 } else if (ngx_strcmp(value[3].data, "permanent") == 0) { |
| 1029 regex->status = NGX_HTTP_MOVED_PERMANENTLY; | |
| 1030 regex->redirect = 1; | |
| 1031 last = 1; | |
|
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
325
diff
changeset
|
1032 |
| 485 | 1033 } else { |
|
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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parents:
325
diff
changeset
|
1034 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 461 | 1035 "invalid parameter \"%V\"", &value[3]); |
|
326
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nginx-0.0.3-2004-04-26-00:13:21 import
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parents:
325
diff
changeset
|
1036 return NGX_CONF_ERROR; |
|
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
Igor Sysoev <igor@sysoev.ru>
parents:
325
diff
changeset
|
1037 } |
| 485 | 1038 } |
|
326
8733703a37f3
nginx-0.0.3-2004-04-26-00:13:21 import
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parents:
325
diff
changeset
|
1039 |
| 485 | 1040 i = 0; |
| 1041 | |
| 1042 while (i < value[2].len) { | |
| 1043 | |
| 1044 data = &value[2].data[i]; | |
| 483 | 1045 |
| 485 | 1046 if (value[2].data[i] == '$' && i < value[2].len |
| 1047 && value[2].data[i + 1] >= '1' && value[2].data[i + 1] <= '9') | |
| 1048 { | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1049 |
| 485 | 1050 /* the "$1" - "$9" captures */ |
| 1051 | |
| 1052 copy_capture = ngx_http_rewrite_add_code(lcf->codes, | |
| 1053 sizeof(ngx_http_rewrite_copy_capture_code_t), | |
| 487 | 1054 ®ex); |
| 485 | 1055 if (copy_capture == NULL) { |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1056 return NGX_CONF_ERROR; |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1057 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1058 |
| 485 | 1059 i++; |
| 1060 | |
| 1061 copy_capture->code = ngx_http_rewrite_copy_capture_code; | |
| 1062 copy_capture->n = value[2].data[i] - '0'; | |
| 1063 | |
| 1064 if (regex->ncaptures < copy_capture->n) { | |
| 1065 regex->ncaptures = copy_capture->n; | |
| 1066 } | |
| 1067 | |
| 1068 copy_capture->n *= 2; | |
| 1069 | |
| 1070 i++; | |
| 1071 | |
| 1072 continue; | |
| 1073 } | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1074 |
| 485 | 1075 if (value[2].data[i] == '?') { |
| 1076 | |
| 1077 /* the arguments */ | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1078 |
| 485 | 1079 if (i == value[2].len - 1) { |
| 1080 /* the last "?" drops the original arguments */ | |
| 1081 regex->args = 0; | |
| 1082 break; | |
| 1083 } | |
| 1084 | |
| 1085 if (!regex->redirect) { | |
| 1086 code = ngx_http_rewrite_add_code(lcf->codes, sizeof(uintptr_t), | |
| 487 | 1087 ®ex); |
| 485 | 1088 if (code == NULL) { |
| 1089 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
|
1090 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1091 |
| 485 | 1092 *code = ngx_http_rewrite_start_args_code; |
| 1093 | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1094 i++; |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1095 |
| 483 | 1096 continue; |
| 1097 } | |
| 485 | 1098 } |
| 1099 | |
| 1100 i++; | |
| 1101 | |
| 1102 /* the substituion strings */ | |
| 1103 | |
| 1104 while (i < value[2].len && value[2].data[i] != '$') { | |
| 483 | 1105 |
| 1106 if (value[2].data[i] == '?') { | |
| 1107 | |
| 485 | 1108 if (i == value[2].len - 1) { |
| 1109 /* | |
| 1110 * the last "?" drops the original arguments, | |
| 1111 * and it should not be copied to a substituion | |
| 1112 */ | |
| 1113 regex->args = 0; | |
| 1114 break; | |
| 1115 } | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1116 |
| 485 | 1117 if (!regex->redirect) { |
| 1118 break; | |
| 1119 } | |
| 483 | 1120 } |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1121 |
| 483 | 1122 i++; |
| 485 | 1123 } |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1124 |
| 485 | 1125 len = &value[2].data[i] - data; |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1126 |
| 485 | 1127 if (len == 0) { |
| 1128 continue; | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1129 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1130 |
| 485 | 1131 regex->size += len; |
| 1132 | |
| 1133 size = (len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1); | |
| 481 | 1134 |
| 485 | 1135 copy = ngx_http_rewrite_add_code(lcf->codes, |
| 1136 sizeof(ngx_http_rewrite_copy_code_t) + size, | |
| 487 | 1137 ®ex); |
| 485 | 1138 if (copy == NULL) { |
| 481 | 1139 return NGX_CONF_ERROR; |
| 1140 } | |
| 1141 | |
| 485 | 1142 copy->code = ngx_http_rewrite_copy_code; |
| 1143 copy->len = len; | |
| 1144 | |
| 1145 ngx_memcpy((u_char *) copy + sizeof(ngx_http_rewrite_copy_code_t), | |
| 1146 data, len); | |
| 1147 } | |
| 1148 | |
| 1149 n = ngx_regex_capture_count(regex->regex); | |
| 1150 | |
| 501 | 1151 if (n < 0) { |
| 1152 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1153 ngx_regex_capture_count_n " failed for " | |
| 1154 "pattern \"%V\"", &value[1]); | |
| 1155 return NGX_CONF_ERROR; | |
| 1156 } | |
| 1157 | |
| 1158 if (regex->ncaptures > (ngx_uint_t) n) { | |
| 485 | 1159 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 1160 "pattern \"%V\" has less captures " | |
| 1161 "than referrenced in substitution \"%V\"", | |
| 1162 &value[1], &value[2]); | |
| 1163 return NGX_CONF_ERROR; | |
| 1164 } | |
| 1165 | |
| 501 | 1166 if (regex->ncaptures < (ngx_uint_t) n) { |
| 1167 regex->ncaptures = (ngx_uint_t) n; | |
| 485 | 1168 } |
| 481 | 1169 |
| 485 | 1170 if (regex->ncaptures) { |
| 1171 regex->ncaptures = (regex->ncaptures + 1) * 3; | |
| 1172 } | |
| 1173 | |
| 1174 regex_end = ngx_http_rewrite_add_code(lcf->codes, | |
| 1175 sizeof(ngx_http_rewrite_regex_end_code_t), | |
| 487 | 1176 ®ex); |
| 485 | 1177 if (regex_end == NULL) { |
| 1178 return NGX_CONF_ERROR; | |
| 1179 } | |
| 1180 | |
| 1181 regex_end->code = ngx_http_rewrite_regex_end_code; | |
| 1182 regex_end->uri = regex->uri; | |
| 1183 regex_end->args = regex->args; | |
| 1184 regex_end->redirect = regex->redirect; | |
| 1185 | |
| 1186 if (last) { | |
| 1187 code = ngx_http_rewrite_add_code(lcf->codes, sizeof(uintptr_t), | |
| 487 | 1188 ®ex); |
| 485 | 1189 if (code == NULL) { |
| 1190 return NGX_CONF_ERROR; | |
|
218
05592fd7a436
nginx-0.0.1-2004-01-05-23:55:48 import
Igor Sysoev <igor@sysoev.ru>
parents:
216
diff
changeset
|
1191 } |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1192 |
| 485 | 1193 *code = (uintptr_t) NULL; |
| 1194 } | |
| 1195 | |
| 1196 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 1197 - (u_char *) regex; | |
| 1198 | |
| 1199 return NGX_CONF_OK; | |
| 1200 } | |
| 1201 | |
| 1202 | |
| 487 | 1203 static char * |
| 1204 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 485 | 1205 { |
| 1206 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
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parents:
diff
changeset
|
1207 |
| 485 | 1208 ngx_str_t *value; |
| 1209 ngx_http_rewrite_return_code_t *ret; | |
| 1210 | |
| 1211 ret = ngx_http_rewrite_start_code(cf->pool, &lcf->codes, | |
| 1212 sizeof(ngx_http_rewrite_return_code_t)); | |
| 1213 if (ret == NULL) { | |
| 1214 return NGX_CONF_ERROR; | |
| 1215 } | |
| 1216 | |
| 1217 value = cf->args->elts; | |
| 1218 | |
| 1219 ret->code = ngx_http_rewrite_return_code; | |
| 1220 ret->null = (uintptr_t) NULL; | |
| 1221 | |
| 1222 ret->status = ngx_atoi(value[1].data, value[1].len); | |
| 1223 | |
| 1224 if (ret->status == (uintptr_t) NGX_ERROR) { | |
| 1225 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
|
1226 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1227 |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1228 return NGX_CONF_OK; |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1229 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1230 |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1231 |
| 487 | 1232 static char * |
| 1233 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
|
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
1234 { |
| 485 | 1235 ngx_http_rewrite_loc_conf_t *lcf = conf; |
| 1236 | |
| 1237 void *mconf; | |
| 1238 char *rv; | |
| 1239 u_char *elts; | |
| 1240 ngx_uint_t i; | |
| 1241 ngx_conf_t save; | |
| 1242 ngx_http_module_t *module; | |
| 1243 ngx_http_conf_ctx_t *ctx, *pctx; | |
| 1244 ngx_http_core_loc_conf_t *clcf, *pclcf, **clcfp; | |
| 1245 ngx_http_rewrite_if_code_t *if_code; | |
| 1246 ngx_http_rewrite_loc_conf_t *nlcf; | |
| 1247 | |
| 501 | 1248 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
| 1249 if (ctx == NULL) { | |
| 485 | 1250 return NGX_CONF_ERROR; |
| 1251 } | |
| 1252 | |
| 1253 pctx = cf->ctx; | |
| 1254 ctx->main_conf = pctx->main_conf; | |
| 1255 ctx->srv_conf = pctx->srv_conf; | |
| 1256 | |
| 1257 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
| 1258 if (ctx->loc_conf == NULL) { | |
| 1259 return NGX_CONF_ERROR; | |
| 1260 } | |
| 1261 | |
| 1262 for (i = 0; ngx_modules[i]; i++) { | |
| 1263 if (ngx_modules[i]->type != NGX_HTTP_MODULE) { | |
| 1264 continue; | |
| 1265 } | |
| 1266 | |
| 1267 module = ngx_modules[i]->ctx; | |
| 1268 | |
| 1269 if (module->create_loc_conf) { | |
| 1270 | |
| 501 | 1271 mconf = module->create_loc_conf(cf); |
| 1272 if (mconf == NULL) { | |
| 485 | 1273 return NGX_CONF_ERROR; |
| 1274 } | |
| 1275 | |
| 1276 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf; | |
| 1277 } | |
| 1278 } | |
| 1279 | |
| 1280 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 1281 | |
| 1282 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
| 1283 clcf->loc_conf = ctx->loc_conf; | |
| 1284 clcf->name = pclcf->name; | |
| 1285 clcf->noname = 1; | |
| 1286 | |
| 1287 if (pclcf->locations.elts == NULL) { | |
| 1288 if (ngx_array_init(&pclcf->locations, cf->pool, 4, sizeof(void *)) | |
| 1289 == NGX_ERROR) | |
| 1290 { | |
| 1291 return NGX_CONF_ERROR; | |
| 1292 } | |
| 1293 } | |
| 1294 | |
| 501 | 1295 clcfp = ngx_array_push(&pclcf->locations); |
| 1296 if (clcfp == NULL) { | |
| 485 | 1297 return NGX_CONF_ERROR; |
| 1298 } | |
| 1299 | |
| 1300 *clcfp = clcf; | |
| 1301 | |
| 1302 | |
| 501 | 1303 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
| 485 | 1304 return NGX_CONF_ERROR; |
| 1305 } | |
| 1306 | |
| 1307 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_rewrite_if_code_t)); | |
| 1308 if (if_code == NULL) { | |
| 1309 return NULL; | |
| 1310 } | |
| 1311 | |
| 1312 if_code->code = ngx_http_rewrite_if_code; | |
| 1313 | |
| 1314 elts = lcf->codes->elts; | |
| 1315 | |
| 1316 | |
| 1317 /* the inside directives must compile to the same code array */ | |
| 1318 | |
| 1319 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
| 1320 nlcf->codes = lcf->codes; | |
| 1321 | |
| 1322 | |
| 1323 save = *cf; | |
| 1324 cf->ctx = ctx; | |
| 1325 | |
| 1326 if (pclcf->name.len == 0) { | |
| 1327 if_code->loc_conf = NULL; | |
| 1328 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
| 1329 | |
| 1330 } else { | |
| 1331 if_code->loc_conf = ctx->loc_conf; | |
| 1332 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
| 1333 } | |
| 1334 | |
| 1335 rv = ngx_conf_parse(cf, NULL); | |
| 1336 | |
| 1337 *cf = save; | |
| 1338 | |
| 1339 if (rv != NGX_CONF_OK) { | |
| 1340 return rv; | |
| 1341 } | |
| 1342 | |
| 1343 | |
| 1344 if (elts != lcf->codes->elts) { | |
| 1345 if_code = (ngx_http_rewrite_if_code_t *) | |
| 1346 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); | |
| 1347 } | |
| 1348 | |
| 1349 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
| 1350 - (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
|
1351 |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
1352 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
|
1353 } |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
1354 |
|
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
1355 |
| 487 | 1356 static char * |
| 501 | 1357 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
| 1358 { | |
| 1359 ngx_str_t *value, err; | |
| 1360 ngx_uint_t cur, last; | |
| 1361 ngx_http_rewrite_regex_code_t *regex; | |
| 1362 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
| 1363 | |
| 1364 value = cf->args->elts; | |
| 1365 last = cf->args->nelts - 1; | |
| 1366 | |
| 1367 if (value[1].len < 1 || value[1].data[0] != '(') { | |
| 1368 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1369 "invalid condition \"%V\"", &value[1]); | |
| 1370 return NGX_CONF_ERROR; | |
| 1371 } | |
| 1372 | |
| 1373 if (value[1].len == 1) { | |
| 1374 cur = 2; | |
| 1375 | |
| 1376 } else { | |
| 1377 cur = 1; | |
| 1378 value[1].len--; | |
| 1379 value[1].data++; | |
| 1380 } | |
| 1381 | |
| 1382 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
| 1383 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1384 "invalid condition \"%V\"", &value[last]); | |
| 1385 return NGX_CONF_ERROR; | |
| 1386 } | |
| 1387 | |
| 1388 if (value[last].len == 1) { | |
| 1389 last--; | |
| 1390 | |
| 1391 } else { | |
| 1392 value[last].len--; | |
| 1393 value[last].data[value[last].len] = '\0'; | |
| 1394 } | |
| 1395 | |
| 1396 if (value[cur].len > 1 && value[cur].data[0] == '$') { | |
| 1397 | |
| 1398 if (cur != last && cur + 2 != last) { | |
| 1399 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1400 "invalid condition \"%V\"", &value[cur]); | |
| 1401 return NGX_CONF_ERROR; | |
| 1402 } | |
| 1403 | |
| 1404 if (ngx_http_rewrite_variable(cf, lcf, &value[cur])!= NGX_CONF_OK) { | |
| 1405 return NGX_CONF_ERROR; | |
| 1406 } | |
| 1407 | |
| 1408 if (cur == last) { | |
| 1409 return NGX_CONF_OK; | |
| 1410 } | |
| 1411 | |
| 1412 cur++; | |
| 1413 | |
| 1414 if ((value[cur].len == 1 && value[cur].data[0] != '~') | |
| 1415 || (value[cur].len == 2 | |
| 1416 && value[cur].data[0] != '~' && value[cur].data[1] != '*')) | |
| 1417 { | |
| 1418 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1419 "unexpected \"%V\" in condition", &value[cur]); | |
| 1420 return NGX_CONF_ERROR; | |
| 1421 } | |
| 1422 | |
| 1423 regex = ngx_http_rewrite_start_code(cf->pool, &lcf->codes, | |
| 1424 sizeof(ngx_http_rewrite_regex_code_t)); | |
| 1425 if (regex == NULL) { | |
| 1426 return NGX_CONF_ERROR; | |
| 1427 } | |
| 1428 | |
| 1429 err.len = NGX_MAX_CONF_ERRSTR; | |
| 1430 err.data = errstr; | |
| 1431 | |
| 1432 regex->regex = ngx_regex_compile(&value[last], | |
| 1433 (value[cur].len == 2) ? NGX_REGEX_CASELESS : 0, | |
| 1434 cf->pool, &err); | |
| 1435 | |
| 1436 if (regex->regex == NULL) { | |
| 1437 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "%s", err.data); | |
| 1438 return NGX_CONF_ERROR; | |
| 1439 } | |
| 1440 | |
| 1441 regex->code = ngx_http_rewrite_regex_start_code; | |
| 1442 regex->size = 0; | |
| 1443 regex->ncaptures = 0; | |
| 1444 regex->status = 0; | |
| 1445 regex->next = sizeof(ngx_http_rewrite_regex_code_t); | |
| 1446 regex->test = 1; | |
| 1447 regex->uri = 0; | |
| 1448 regex->args = 0; | |
| 1449 regex->redirect = 0; | |
| 1450 regex->name = value[last]; | |
| 1451 | |
| 1452 return NGX_CONF_OK; | |
| 1453 } | |
| 1454 | |
| 1455 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1456 "invalid condition \"%V\"", &value[cur]); | |
| 1457 | |
| 1458 return NGX_CONF_ERROR; | |
| 1459 } | |
| 1460 | |
| 1461 | |
| 1462 static char * | |
| 1463 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
| 1464 ngx_str_t *value) | |
| 1465 { | |
| 1466 ngx_http_variable_t *var; | |
| 1467 ngx_http_rewrite_code_pt *code; | |
| 1468 ngx_http_rewrite_var_code_t *var_code; | |
| 1469 | |
| 1470 value->len--; | |
| 1471 value->data++; | |
| 1472 | |
| 1473 if (value->len == sizeof("invalid_referer") - 1 | |
| 1474 && ngx_strncmp(value->data, "invalid_referer", | |
| 1475 sizeof("invalid_referer") - 1) == 0) | |
| 1476 { | |
| 1477 code = ngx_http_rewrite_start_code(cf->pool, &lcf->codes, | |
| 1478 sizeof(ngx_http_rewrite_code_pt)); | |
| 1479 if (code == NULL) { | |
| 1480 return NGX_CONF_ERROR; | |
| 1481 } | |
| 1482 | |
| 1483 *code = ngx_http_rewrite_invalid_referer_code; | |
| 1484 | |
| 1485 } else { | |
| 1486 var = ngx_http_add_variable(cf, value, 0); | |
| 1487 | |
| 1488 if (var == NULL) { | |
| 1489 return NGX_CONF_ERROR; | |
| 1490 } | |
| 1491 | |
| 1492 var_code = ngx_http_rewrite_start_code(cf->pool, &lcf->codes, | |
| 1493 sizeof(ngx_http_rewrite_var_code_t)); | |
| 1494 if (var_code == NULL) { | |
| 1495 return NGX_CONF_ERROR; | |
| 1496 } | |
| 1497 | |
| 1498 var_code->code = ngx_http_rewrite_var_code; | |
| 1499 var_code->index = var->index; | |
| 1500 } | |
| 1501 | |
| 1502 return NGX_CONF_OK; | |
| 1503 } | |
| 1504 | |
| 1505 | |
| 1506 static char * | |
| 487 | 1507 ngx_http_rewrite_valid_referers(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1508 { |
| 485 | 1509 ngx_http_rewrite_loc_conf_t *lcf = conf; |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1510 |
| 485 | 1511 ngx_uint_t i, server_names; |
| 1512 ngx_str_t *value; | |
| 1513 ngx_http_server_name_t *sn; | |
| 1514 ngx_http_core_srv_conf_t *cscf; | |
| 1515 ngx_http_rewrite_referer_t *ref; | |
| 1516 | |
| 1517 cscf = ngx_http_conf_get_module_srv_conf(cf, ngx_http_core_module); | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1518 |
| 485 | 1519 if (lcf->referers == NULL) { |
| 1520 lcf->referers = ngx_array_create(cf->pool, | |
| 1521 cf->args->nelts + cscf->server_names.nelts, | |
| 1522 sizeof(ngx_http_rewrite_referer_t)); | |
| 1523 if (lcf->referers == NULL) { | |
| 1524 return NGX_CONF_ERROR; | |
| 1525 } | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1526 } |
|
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1527 |
| 485 | 1528 value = cf->args->elts; |
| 1529 server_names = 0; | |
| 1530 | |
| 1531 for (i = 1; i < cf->args->nelts; i++) { | |
| 1532 if (value[i].len == 0) { | |
| 1533 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1534 "invalid referer \"%V\"", &value[i]); | |
| 1535 return NGX_CONF_ERROR; | |
| 1536 } | |
| 1537 | |
| 1538 if (ngx_strcmp(value[i].data, "none") == 0) { | |
| 1539 lcf->no_referer = 1; | |
| 1540 continue; | |
| 1541 } | |
| 1542 | |
| 1543 if (ngx_strcmp(value[i].data, "server_names") == 0) { | |
| 1544 server_names = 1; | |
| 1545 continue; | |
| 1546 } | |
| 1547 | |
| 501 | 1548 ref = ngx_array_push(lcf->referers); |
| 1549 if (ref == NULL) { | |
| 485 | 1550 return NGX_CONF_ERROR; |
| 1551 } | |
| 1552 | |
| 1553 if (value[i].data[0] != '*') { | |
| 1554 ref->name = value[i]; | |
| 1555 ref->wildcard = 0; | |
| 1556 continue; | |
| 1557 } | |
| 1558 | |
| 1559 if (value[i].data[1] != '.') { | |
| 1560 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1561 "invalid wildcard referer \"%V\"", &value[i]); | |
| 1562 return NGX_CONF_ERROR; | |
| 1563 } | |
| 1564 | |
| 1565 ref->name.len = value[i].len - 1; | |
| 1566 ref->name.data = value[i].data + 1; | |
| 1567 ref->wildcard = 1; | |
| 1568 } | |
| 1569 | |
| 1570 if (!server_names) { | |
| 1571 return NGX_CONF_OK; | |
| 1572 } | |
|
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1573 |
| 485 | 1574 sn = cscf->server_names.elts; |
| 1575 for (i = 0; i < cscf->server_names.nelts; i++) { | |
| 501 | 1576 ref = ngx_array_push(lcf->referers); |
| 1577 if (ref == NULL) { | |
| 485 | 1578 return NGX_CONF_ERROR; |
| 1579 } | |
| 1580 | |
| 1581 ref->name.len = sn[i].name.len + 1; | |
| 501 | 1582 ref->name.data = ngx_palloc(cf->pool, ref->name.len); |
| 1583 if (ref->name.data == NULL) { | |
| 485 | 1584 return NGX_CONF_ERROR; |
| 1585 } | |
| 1586 | |
| 1587 ngx_memcpy(ref->name.data, sn[i].name.data, sn[i].name.len); | |
| 1588 ref->name.data[sn[i].name.len] = '/'; | |
| 1589 ref->wildcard = sn[i].wildcard; | |
| 1590 } | |
| 1591 | |
| 1592 return NGX_CONF_OK; | |
|
216
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nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1593 } |
| 485 | 1594 |
| 1595 | |
| 501 | 1596 static char * |
| 1597 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 1598 { | |
| 1599 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
| 1600 | |
| 1601 ngx_int_t n; | |
| 1602 ngx_str_t *value; | |
| 1603 ngx_http_variable_t *v; | |
| 1604 ngx_http_rewrite_var_code_t *var; | |
| 1605 ngx_http_rewrite_value_code_t *val; | |
| 1606 | |
| 1607 value = cf->args->elts; | |
| 1608 | |
| 1609 if (value[1].data[0] != '$') { | |
| 1610 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1611 "invalid variable name \"%V\"", &value[1]); | |
| 1612 return NGX_CONF_ERROR; | |
| 1613 } | |
| 1614 | |
| 1615 value[1].len--; | |
| 1616 value[1].data++; | |
| 1617 | |
| 1618 v = ngx_http_add_variable(cf, &value[1], 1); | |
| 1619 if (v == NULL) { | |
| 1620 return NGX_CONF_ERROR; | |
| 1621 } | |
| 1622 | |
| 1623 v->handler = ngx_http_rewrite_var; | |
| 1624 v->data = v->index; | |
| 1625 | |
| 1626 val = ngx_http_rewrite_start_code(cf->pool, &lcf->codes, | |
| 1627 sizeof(ngx_http_rewrite_value_code_t)); | |
| 1628 if (val == NULL) { | |
| 1629 return NGX_CONF_ERROR; | |
| 1630 } | |
| 1631 | |
| 1632 n = ngx_atoi(value[2].data, value[2].len); | |
| 1633 | |
| 1634 if (n == NGX_ERROR) { | |
| 1635 n = 0; | |
| 1636 } | |
| 1637 | |
| 1638 val->code = ngx_http_rewrite_value_code; | |
| 1639 val->value = (uintptr_t) n; | |
| 1640 val->text_len = (uintptr_t) value[2].len; | |
| 1641 val->text_data = (uintptr_t) value[2].data; | |
| 1642 | |
| 1643 var = ngx_http_rewrite_start_code(cf->pool, &lcf->codes, | |
| 1644 sizeof(ngx_http_rewrite_var_code_t)); | |
| 1645 if (var == NULL) { | |
| 1646 return NGX_CONF_ERROR; | |
| 1647 } | |
| 1648 | |
| 1649 var->code = ngx_http_rewrite_set_var_code; | |
| 1650 var->index = (uintptr_t) v->index; | |
| 1651 | |
| 1652 return NGX_CONF_OK; | |
| 1653 } | |
| 1654 | |
| 1655 | |
| 487 | 1656 static void * |
| 1657 ngx_http_rewrite_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size) | |
| 485 | 1658 { |
| 1659 if (*codes == NULL) { | |
| 501 | 1660 *codes = ngx_array_create(pool, 256, 1); |
| 1661 if (*codes == NULL) { | |
| 485 | 1662 return NULL; |
| 1663 } | |
| 1664 } | |
| 1665 | |
| 1666 return ngx_array_push_n(*codes, size); | |
| 1667 } | |
| 1668 | |
| 1669 | |
| 487 | 1670 static void * |
| 1671 ngx_http_rewrite_add_code(ngx_array_t *codes, size_t size, void *code) | |
| 485 | 1672 { |
| 487 | 1673 u_char *elts, **p; |
| 485 | 1674 void *new; |
| 1675 | |
| 1676 elts = codes->elts; | |
| 1677 | |
| 501 | 1678 new = ngx_array_push_n(codes, size); |
| 1679 if (new == NULL) { | |
| 485 | 1680 return NGX_CONF_ERROR; |
| 1681 } | |
| 1682 | |
| 1683 if (elts != codes->elts) { | |
| 487 | 1684 p = code; |
| 1685 *p += (u_char *) codes->elts - elts; | |
| 485 | 1686 } |
| 1687 | |
| 1688 return new; | |
| 1689 } |