Mercurial > hg > nginx
annotate src/http/ngx_http_script.c @ 655:4c8cd5ae5cc1 release-0.3.49
nginx-0.3.49-RELEASE import
*) Bugfix: in the "set" directive.
*) Bugfix: if two or more FastCGI subrequests was in SSI, then first
subrequest output was included instead of second and following
subrequests.
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Wed, 31 May 2006 14:11:45 +0000 |
| parents | 7cbef16c71a1 |
| children | 562806624c4a |
| 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 |
| 509 | 12 #define ngx_http_script_exit (u_char *) &ngx_http_script_exit_code |
| 13 | |
| 14 static uintptr_t ngx_http_script_exit_code = (uintptr_t) NULL; | |
| 15 | |
| 16 | |
| 17 ngx_uint_t | |
| 18 ngx_http_script_variables_count(ngx_str_t *value) | |
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19 { |
| 509 | 20 ngx_uint_t i, n; |
| 507 | 21 |
| 509 | 22 for (n = 0, i = 0; i < value->len; i++) { |
| 23 if (value->data[i] == '$') { | |
| 24 n++; | |
| 25 } | |
| 507 | 26 } |
| 27 | |
| 509 | 28 return n; |
| 29 } | |
| 30 | |
| 31 | |
| 32 ngx_int_t | |
| 33 ngx_http_script_compile(ngx_http_script_compile_t *sc) | |
| 34 { | |
| 35 u_char ch; | |
| 36 size_t size; | |
| 573 | 37 ngx_int_t index, *p; |
| 509 | 38 ngx_str_t name; |
| 39 uintptr_t *code; | |
| 40 ngx_uint_t i, n, bracket; | |
| 41 ngx_http_script_var_code_t *var_code; | |
| 42 ngx_http_script_copy_code_t *copy; | |
| 43 ngx_http_script_copy_capture_code_t *copy_capture; | |
| 44 | |
| 573 | 45 if (sc->flushes && *sc->flushes == NULL) { |
| 46 n = sc->variables ? sc->variables : 1; | |
| 47 *sc->flushes = ngx_array_create(sc->cf->pool, n, sizeof(ngx_uint_t)); | |
| 48 if (*sc->flushes == NULL) { | |
| 49 return NGX_ERROR; | |
| 50 } | |
| 51 } | |
| 52 | |
| 53 | |
| 509 | 54 if (*sc->lengths == NULL) { |
| 55 n = sc->variables * (2 * sizeof(ngx_http_script_copy_code_t) | |
| 56 + sizeof(ngx_http_script_var_code_t)) | |
| 57 + sizeof(uintptr_t); | |
| 58 | |
| 59 *sc->lengths = ngx_array_create(sc->cf->pool, n, 1); | |
| 60 if (*sc->lengths == NULL) { | |
| 61 return NGX_ERROR; | |
| 62 } | |
| 63 } | |
| 64 | |
| 65 | |
| 66 if (*sc->values == NULL) { | |
| 67 n = (sc->variables * (2 * sizeof(ngx_http_script_copy_code_t) | |
| 68 + sizeof(ngx_http_script_var_code_t)) | |
| 69 + sizeof(uintptr_t) | |
| 70 + sc->source->len | |
| 71 + sizeof(uintptr_t) - 1) | |
| 72 & ~(sizeof(uintptr_t) - 1); | |
| 73 | |
| 74 *sc->values = ngx_array_create(sc->cf->pool, n, 1); | |
| 75 if (*sc->values == NULL) { | |
| 507 | 76 return NGX_ERROR; |
| 77 } | |
| 78 } | |
| 79 | |
| 509 | 80 sc->variables = 0; |
| 81 | |
| 82 for (i = 0; i < sc->source->len; /* void */ ) { | |
| 83 | |
| 84 name.len = 0; | |
| 85 | |
| 86 if (sc->source->data[i] == '$') { | |
| 87 | |
| 88 if (++i == sc->source->len) { | |
| 89 goto invalid_variable; | |
| 90 } | |
| 91 | |
| 92 if (sc->source->data[i] >= '1' && sc->source->data[i] <= '9') { | |
| 93 | |
| 641 | 94 n = sc->source->data[i] - '0'; |
| 95 | |
| 96 if (sc->captures_mask & (1 << n)) { | |
| 97 sc->dup_capture = 1; | |
| 98 } | |
| 99 | |
| 100 sc->captures_mask |= 1 << n; | |
| 101 | |
| 509 | 102 copy_capture = ngx_http_script_add_code(*sc->lengths, |
| 103 sizeof(ngx_http_script_copy_capture_code_t), | |
| 104 NULL); | |
| 105 if (copy_capture == NULL) { | |
| 106 return NGX_ERROR; | |
| 107 } | |
| 108 | |
| 109 copy_capture->code = (ngx_http_script_code_pt) | |
| 110 ngx_http_script_copy_capture_len_code; | |
| 641 | 111 copy_capture->n = 2 * n; |
| 112 | |
| 509 | 113 |
| 114 copy_capture = ngx_http_script_add_code(*sc->values, | |
| 115 sizeof(ngx_http_script_copy_capture_code_t), | |
| 116 &sc->main); | |
| 117 if (copy_capture == NULL) { | |
| 118 return NGX_ERROR; | |
| 119 } | |
| 120 | |
| 121 copy_capture->code = ngx_http_script_copy_capture_code; | |
| 641 | 122 copy_capture->n = 2 * n; |
| 509 | 123 |
| 641 | 124 if (sc->ncaptures < n) { |
| 125 sc->ncaptures = n; | |
| 509 | 126 } |
| 127 | |
| 128 i++; | |
| 129 | |
| 130 continue; | |
| 131 } | |
| 132 | |
| 133 if (sc->source->data[i] == '{') { | |
| 134 bracket = 1; | |
| 135 | |
| 136 if (++i == sc->source->len) { | |
| 137 goto invalid_variable; | |
| 138 } | |
| 139 | |
| 140 name.data = &sc->source->data[i]; | |
| 141 | |
| 142 } else { | |
| 143 bracket = 0; | |
| 144 name.data = &sc->source->data[i]; | |
| 145 } | |
| 146 | |
| 147 for ( /* void */ ; i < sc->source->len; i++, name.len++) { | |
| 148 ch = sc->source->data[i]; | |
| 507 | 149 |
| 509 | 150 if (ch == '}' && bracket) { |
| 151 i++; | |
| 152 bracket = 0; | |
| 153 break; | |
| 154 } | |
| 155 | |
| 156 if ((ch >= 'A' && ch <= 'Z') | |
| 157 || (ch >= 'a' && ch <= 'z') | |
| 158 || (ch >= '0' && ch <= '9') | |
| 159 || ch == '_') | |
| 160 { | |
| 161 continue; | |
| 162 } | |
| 163 | |
| 164 break; | |
| 165 } | |
| 166 | |
| 167 if (bracket) { | |
| 168 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, | |
| 169 "the closing bracket in \"%V\" " | |
| 170 "variable is missing", &name); | |
| 507 | 171 return NGX_ERROR; |
| 172 } | |
| 173 | |
| 509 | 174 if (name.len == 0) { |
| 175 goto invalid_variable; | |
| 176 } | |
| 507 | 177 |
| 509 | 178 sc->variables++; |
| 507 | 179 |
| 509 | 180 index = ngx_http_get_variable_index(sc->cf, &name); |
| 181 | |
| 182 if (index == NGX_ERROR) { | |
| 507 | 183 return NGX_ERROR; |
| 184 } | |
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185 |
| 573 | 186 if (sc->flushes) { |
| 187 p = ngx_array_push(*sc->flushes); | |
| 188 if (p == NULL) { | |
| 189 return NGX_ERROR; | |
| 190 } | |
| 191 | |
| 192 *p = index; | |
| 193 } | |
| 194 | |
| 509 | 195 var_code = ngx_http_script_add_code(*sc->lengths, |
| 196 sizeof(ngx_http_script_var_code_t), | |
| 197 NULL); | |
| 507 | 198 if (var_code == NULL) { |
| 199 return NGX_ERROR; | |
| 200 } | |
| 201 | |
| 202 var_code->code = (ngx_http_script_code_pt) | |
| 509 | 203 ngx_http_script_copy_var_len_code; |
| 204 var_code->index = (uintptr_t) index; | |
| 507 | 205 |
| 206 | |
| 509 | 207 var_code = ngx_http_script_add_code(*sc->values, |
| 208 sizeof(ngx_http_script_var_code_t), | |
| 209 &sc->main); | |
| 507 | 210 if (var_code == NULL) { |
| 211 return NGX_ERROR; | |
| 212 } | |
| 213 | |
| 509 | 214 var_code->code = ngx_http_script_copy_var_code; |
| 215 var_code->index = (uintptr_t) index; | |
| 216 | |
| 217 continue; | |
| 218 } | |
| 507 | 219 |
| 509 | 220 if (sc->source->data[i] == '?' && sc->compile_args) { |
| 221 sc->args = 1; | |
| 222 sc->compile_args = 0; | |
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223 |
| 509 | 224 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t), |
| 225 &sc->main); | |
| 226 if (code == NULL) { | |
| 507 | 227 return NGX_ERROR; |
| 228 } | |
| 229 | |
| 509 | 230 *code = (uintptr_t) ngx_http_script_start_args_code; |
| 231 | |
| 232 i++; | |
| 233 | |
| 507 | 234 continue; |
| 235 } | |
| 236 | |
| 509 | 237 name.data = &sc->source->data[i]; |
| 238 | |
| 239 while (i < sc->source->len | |
| 240 && sc->source->data[i] != '$' | |
| 241 && !(sc->source->data[i] == '?' && sc->compile_args)) | |
| 242 { | |
| 243 i++; | |
| 244 name.len++; | |
| 245 } | |
| 246 | |
| 247 sc->size += name.len; | |
| 248 | |
| 249 copy = ngx_http_script_add_code(*sc->lengths, | |
| 250 sizeof(ngx_http_script_copy_code_t), | |
| 251 NULL); | |
| 252 if (copy == NULL) { | |
| 507 | 253 return NGX_ERROR; |
| 254 } | |
| 509 | 255 |
| 256 copy->code = (ngx_http_script_code_pt) ngx_http_script_copy_len_code; | |
| 257 copy->len = name.len; | |
| 258 | |
| 259 size = (sizeof(ngx_http_script_copy_code_t) + name.len | |
| 260 + sizeof(uintptr_t) - 1) | |
| 261 & ~(sizeof(uintptr_t) - 1); | |
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262 |
| 509 | 263 copy = ngx_http_script_add_code(*sc->values, size, &sc->main); |
| 264 if (copy == NULL) { | |
| 265 return NGX_ERROR; | |
| 266 } | |
| 267 | |
| 268 copy->code = ngx_http_script_copy_code; | |
| 269 copy->len = name.len; | |
| 270 | |
| 271 ngx_memcpy((u_char *) copy + sizeof(ngx_http_script_copy_code_t), | |
| 272 name.data, name.len); | |
| 507 | 273 } |
| 274 | |
| 509 | 275 if (sc->complete_lengths) { |
| 276 code = ngx_http_script_add_code(*sc->lengths, sizeof(uintptr_t), NULL); | |
| 277 if (code == NULL) { | |
| 278 return NGX_ERROR; | |
| 279 } | |
| 507 | 280 |
| 509 | 281 *code = (uintptr_t) NULL; |
| 507 | 282 } |
| 283 | |
| 509 | 284 if (sc->complete_values) { |
| 285 code = ngx_http_script_add_code(*sc->values, sizeof(uintptr_t), | |
| 286 &sc->main); | |
| 287 if (code == NULL) { | |
| 288 return NGX_ERROR; | |
| 289 } | |
| 290 | |
| 291 *code = (uintptr_t) NULL; | |
| 292 } | |
| 507 | 293 |
| 294 return NGX_OK; | |
| 509 | 295 |
| 296 invalid_variable: | |
| 297 | |
| 298 ngx_conf_log_error(NGX_LOG_EMERG, sc->cf, 0, "invalid variable name"); | |
| 299 | |
| 300 return NGX_ERROR; | |
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301 } |
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302 |
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303 |
| 623 | 304 u_char * |
| 305 ngx_http_script_run(ngx_http_request_t *r, ngx_str_t *value, | |
| 306 void *code_lengths, size_t len, void *code_values) | |
| 307 { | |
| 308 ngx_http_script_code_pt code; | |
| 309 ngx_http_script_len_code_pt lcode; | |
| 310 ngx_http_script_engine_t e; | |
| 311 | |
| 312 ngx_memzero(&e, sizeof(ngx_http_script_engine_t)); | |
| 313 | |
| 314 e.ip = code_lengths; | |
| 315 e.request = r; | |
| 316 e.flushed = 1; | |
| 317 | |
| 318 while (*(uintptr_t *) e.ip) { | |
| 319 lcode = *(ngx_http_script_len_code_pt *) e.ip; | |
| 320 len += lcode(&e); | |
| 321 } | |
| 322 | |
| 323 | |
| 324 value->len = len; | |
| 325 value->data = ngx_palloc(r->pool, len); | |
| 326 if (value->data == NULL) { | |
| 327 return NULL; | |
| 328 } | |
| 329 | |
| 330 e.ip = code_values; | |
| 331 e.pos = value->data; | |
| 332 | |
| 333 while (*(uintptr_t *) e.ip) { | |
| 334 code = *(ngx_http_script_code_pt *) e.ip; | |
| 335 code((ngx_http_script_engine_t *) &e); | |
| 336 } | |
| 337 | |
| 338 return e.pos; | |
| 339 } | |
| 340 | |
| 341 | |
| 573 | 342 void |
| 343 ngx_http_script_flush_no_cachable_variables(ngx_http_request_t *r, | |
| 344 ngx_array_t *indices) | |
| 345 { | |
| 346 ngx_uint_t n, *index; | |
| 347 | |
| 348 if (indices) { | |
| 349 index = indices->elts; | |
| 350 for (n = 0; n < indices->nelts; n++) { | |
| 351 if (r->variables[index[n]].no_cachable) { | |
| 352 r->variables[index[n]].valid = 0; | |
| 353 r->variables[index[n]].not_found = 0; | |
| 354 } | |
| 355 } | |
| 356 } | |
| 357 } | |
| 358 | |
| 359 | |
| 509 | 360 void * |
| 507 | 361 ngx_http_script_start_code(ngx_pool_t *pool, ngx_array_t **codes, size_t size) |
| 479 | 362 { |
| 507 | 363 if (*codes == NULL) { |
| 364 *codes = ngx_array_create(pool, 256, 1); | |
| 365 if (*codes == NULL) { | |
| 366 return NULL; | |
| 367 } | |
| 368 } | |
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369 |
| 507 | 370 return ngx_array_push_n(*codes, size); |
| 371 } | |
| 372 | |
| 509 | 373 |
| 374 void * | |
| 375 ngx_http_script_add_code(ngx_array_t *codes, size_t size, void *code) | |
| 376 { | |
| 377 u_char *elts, **p; | |
| 378 void *new; | |
| 379 | |
| 380 elts = codes->elts; | |
| 381 | |
| 382 new = ngx_array_push_n(codes, size); | |
| 383 if (new == NULL) { | |
| 384 return NGX_CONF_ERROR; | |
| 385 } | |
| 386 | |
| 387 if (code) { | |
| 388 if (elts != codes->elts) { | |
| 389 p = code; | |
| 390 *p += (u_char *) codes->elts - elts; | |
| 391 } | |
| 392 } | |
| 393 | |
| 394 return new; | |
| 395 } | |
| 507 | 396 |
| 479 | 397 |
| 507 | 398 size_t |
| 509 | 399 ngx_http_script_copy_len_code(ngx_http_script_engine_t *e) |
| 507 | 400 { |
| 401 ngx_http_script_copy_code_t *code; | |
| 479 | 402 |
| 509 | 403 code = (ngx_http_script_copy_code_t *) e->ip; |
| 507 | 404 |
| 509 | 405 e->ip += sizeof(ngx_http_script_copy_code_t); |
| 507 | 406 |
| 407 return code->len; | |
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408 } |
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409 |
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410 |
| 507 | 411 void |
| 509 | 412 ngx_http_script_copy_code(ngx_http_script_engine_t *e) |
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413 { |
| 507 | 414 ngx_http_script_copy_code_t *code; |
| 415 | |
| 509 | 416 code = (ngx_http_script_copy_code_t *) e->ip; |
| 417 | |
| 418 if (!e->skip) { | |
| 573 | 419 e->pos = ngx_copy(e->pos, e->ip + sizeof(ngx_http_script_copy_code_t), |
| 420 code->len); | |
| 509 | 421 } |
| 507 | 422 |
| 509 | 423 e->ip += sizeof(ngx_http_script_copy_code_t) |
| 424 + ((code->len + sizeof(uintptr_t) - 1) & ~(sizeof(uintptr_t) - 1)); | |
| 507 | 425 |
| 509 | 426 if (e->log) { |
| 427 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 428 "http script copy: \"%V\"", &e->buf); | |
| 429 } | |
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430 } |
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431 |
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432 |
| 507 | 433 size_t |
| 509 | 434 ngx_http_script_copy_var_len_code(ngx_http_script_engine_t *e) |
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435 { |
| 507 | 436 ngx_http_variable_value_t *value; |
| 437 ngx_http_script_var_code_t *code; | |
| 438 | |
| 509 | 439 code = (ngx_http_script_var_code_t *) e->ip; |
| 507 | 440 |
| 509 | 441 e->ip += sizeof(ngx_http_script_var_code_t); |
| 507 | 442 |
| 573 | 443 if (e->flushed) { |
| 444 value = ngx_http_get_indexed_variable(e->request, code->index); | |
| 507 | 445 |
| 573 | 446 } else { |
| 447 value = ngx_http_get_flushed_variable(e->request, code->index); | |
| 448 } | |
| 449 | |
| 450 if (value && !value->not_found) { | |
| 451 return value->len; | |
| 507 | 452 } |
| 453 | |
| 553 | 454 return 0; |
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455 } |
| 479 | 456 |
| 457 | |
| 507 | 458 void |
| 509 | 459 ngx_http_script_copy_var_code(ngx_http_script_engine_t *e) |
| 479 | 460 { |
| 507 | 461 ngx_http_variable_value_t *value; |
| 462 ngx_http_script_var_code_t *code; | |
| 463 | |
| 509 | 464 code = (ngx_http_script_var_code_t *) e->ip; |
| 465 | |
| 466 e->ip += sizeof(ngx_http_script_var_code_t); | |
| 467 | |
| 468 if (!e->skip) { | |
| 573 | 469 |
| 470 if (e->flushed) { | |
| 471 value = ngx_http_get_indexed_variable(e->request, code->index); | |
| 509 | 472 |
| 573 | 473 } else { |
| 474 value = ngx_http_get_flushed_variable(e->request, code->index); | |
| 475 } | |
| 476 | |
| 477 if (value && !value->not_found) { | |
| 478 e->pos = ngx_copy(e->pos, value->data, value->len); | |
| 509 | 479 |
| 553 | 480 if (e->log) { |
| 481 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, | |
| 482 e->request->connection->log, 0, | |
| 483 "http script var: \"%V\"", &e->buf); | |
| 484 } | |
| 509 | 485 } |
| 486 } | |
| 487 } | |
| 488 | |
| 489 | |
| 490 size_t | |
| 491 ngx_http_script_copy_capture_len_code(ngx_http_script_engine_t *e) | |
| 492 { | |
| 493 ngx_http_script_copy_capture_code_t *code; | |
| 494 | |
| 495 code = (ngx_http_script_copy_capture_code_t *) e->ip; | |
| 496 | |
| 497 e->ip += sizeof(ngx_http_script_copy_capture_code_t); | |
| 498 | |
| 515 | 499 if (code->n < e->ncaptures) { |
| 500 if ((e->args || e->quote) | |
| 501 && (e->request->quoted_uri || e->request->plus_in_uri)) | |
| 502 { | |
| 503 return e->captures[code->n + 1] - e->captures[code->n] | |
| 655 | 504 + 2 * ngx_escape_uri(NULL, |
| 515 | 505 &e->line.data[e->captures[code->n]], |
| 509 | 506 e->captures[code->n + 1] - e->captures[code->n], |
| 507 NGX_ESCAPE_ARGS); | |
| 515 | 508 } else { |
| 509 return e->captures[code->n + 1] - e->captures[code->n]; | |
| 510 } | |
| 509 | 511 } |
| 515 | 512 |
| 513 return 0; | |
| 509 | 514 } |
| 515 | |
| 516 | |
| 517 void | |
| 518 ngx_http_script_copy_capture_code(ngx_http_script_engine_t *e) | |
| 519 { | |
| 520 ngx_http_script_copy_capture_code_t *code; | |
| 521 | |
| 522 code = (ngx_http_script_copy_capture_code_t *) e->ip; | |
| 523 | |
| 524 e->ip += sizeof(ngx_http_script_copy_capture_code_t); | |
| 507 | 525 |
| 515 | 526 if (code->n < e->ncaptures) { |
| 527 if ((e->args || e->quote) | |
| 528 && (e->request->quoted_uri || e->request->plus_in_uri)) | |
| 529 { | |
| 530 e->pos = (u_char *) ngx_escape_uri(e->pos, | |
| 531 &e->line.data[e->captures[code->n]], | |
| 509 | 532 e->captures[code->n + 1] - e->captures[code->n], |
| 533 NGX_ESCAPE_ARGS); | |
| 515 | 534 } else { |
| 573 | 535 e->pos = ngx_copy(e->pos, |
| 536 &e->line.data[e->captures[code->n]], | |
| 537 e->captures[code->n + 1] - e->captures[code->n]); | |
| 515 | 538 } |
| 509 | 539 } |
| 540 | |
| 541 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 542 "http script capture: \"%V\"", &e->buf); | |
| 543 } | |
| 544 | |
| 545 | |
| 546 void | |
| 547 ngx_http_script_start_args_code(ngx_http_script_engine_t *e) | |
| 548 { | |
| 549 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 550 "http script args"); | |
| 577 | 551 |
| 509 | 552 e->args = e->pos; |
| 553 e->ip += sizeof(uintptr_t); | |
| 554 } | |
| 555 | |
| 556 | |
| 517 | 557 |
| 558 #if (NGX_PCRE) | |
| 559 | |
| 509 | 560 void |
| 561 ngx_http_script_regex_start_code(ngx_http_script_engine_t *e) | |
| 562 { | |
| 563 size_t len; | |
| 564 ngx_int_t rc; | |
| 565 ngx_uint_t n; | |
| 566 ngx_http_request_t *r; | |
| 567 ngx_http_script_engine_t le; | |
| 568 ngx_http_script_len_code_pt lcode; | |
| 569 ngx_http_script_regex_code_t *code; | |
| 570 | |
| 571 code = (ngx_http_script_regex_code_t *) e->ip; | |
| 572 | |
| 573 r = e->request; | |
| 574 | |
| 575 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 576 "http script regex: \"%V\"", &code->name); | |
| 577 | |
| 578 if (code->uri) { | |
| 515 | 579 e->line = r->uri; |
| 509 | 580 } else { |
| 581 e->sp--; | |
| 573 | 582 e->line.len = e->sp->len; |
| 583 e->line.data = e->sp->data; | |
| 509 | 584 } |
| 507 | 585 |
| 515 | 586 rc = ngx_regex_exec(code->regex, &e->line, e->captures, code->ncaptures); |
| 509 | 587 |
| 588 if (rc == NGX_REGEX_NO_MATCHED) { | |
| 589 if (e->log) { | |
| 590 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
| 515 | 591 "\"%V\" does not match \"%V\"", |
| 592 &code->name, &e->line); | |
| 509 | 593 } |
| 594 | |
| 515 | 595 e->ncaptures = 0; |
| 596 | |
| 509 | 597 if (code->test) { |
| 631 | 598 if (code->negative_test) { |
| 599 e->sp->len = 1; | |
| 600 e->sp->data = (u_char *) "1"; | |
| 601 | |
| 602 } else { | |
| 603 e->sp->len = 0; | |
| 604 e->sp->data = (u_char *) ""; | |
| 605 } | |
| 606 | |
| 509 | 607 e->sp++; |
| 608 | |
| 609 e->ip += sizeof(ngx_http_script_regex_code_t); | |
| 610 return; | |
| 611 } | |
| 612 | |
| 613 e->ip += code->next; | |
| 614 return; | |
| 615 } | |
| 616 | |
| 617 if (rc < 0) { | |
| 618 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
| 619 ngx_regex_exec_n " failed: %d on \"%V\" using \"%V\"", | |
| 515 | 620 rc, &e->line, &code->name); |
| 509 | 621 |
| 622 e->ip = ngx_http_script_exit; | |
| 623 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 624 return; | |
| 625 } | |
| 626 | |
| 627 if (e->log) { | |
| 628 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
| 515 | 629 "\"%V\" matches \"%V\"", &code->name, &e->line); |
| 509 | 630 } |
| 631 | |
| 515 | 632 e->ncaptures = code->ncaptures; |
| 633 | |
| 509 | 634 if (code->test) { |
| 631 | 635 if (code->negative_test) { |
| 636 e->sp->len = 0; | |
| 637 e->sp->data = (u_char *) ""; | |
| 638 | |
| 639 } else { | |
| 640 e->sp->len = 1; | |
| 641 e->sp->data = (u_char *) "1"; | |
| 642 } | |
| 643 | |
| 509 | 644 e->sp++; |
| 645 | |
| 646 e->ip += sizeof(ngx_http_script_regex_code_t); | |
| 647 return; | |
| 648 } | |
| 649 | |
| 650 if (code->status) { | |
| 651 e->status = code->status; | |
| 507 | 652 |
| 509 | 653 if (!code->redirect) { |
| 654 e->ip = ngx_http_script_exit; | |
| 655 return; | |
| 656 } | |
| 657 } | |
| 658 | |
| 659 if (code->uri) { | |
| 660 r->internal = 1; | |
| 661 r->valid_unparsed_uri = 0; | |
| 662 | |
| 663 if (code->break_cycle) { | |
| 664 r->valid_location = 0; | |
| 527 | 665 r->uri_changed = 0; |
| 509 | 666 |
| 667 } else { | |
| 668 r->uri_changed = 1; | |
| 669 } | |
| 670 } | |
| 671 | |
| 672 if (code->lengths == NULL) { | |
| 673 e->buf.len = code->size; | |
| 674 | |
| 675 if (code->uri) { | |
| 676 if (rc && (r->quoted_uri || r->plus_in_uri)) { | |
| 677 e->buf.len += 2 * ngx_escape_uri(NULL, r->uri.data, r->uri.len, | |
| 678 NGX_ESCAPE_ARGS); | |
| 679 } | |
| 680 } | |
| 681 | |
| 682 for (n = 1; n < (ngx_uint_t) rc; n++) { | |
| 683 e->buf.len += e->captures[2 * n + 1] - e->captures[2 * n]; | |
| 684 } | |
| 685 | |
| 686 } else { | |
| 687 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 688 | |
| 689 le.ip = code->lengths->elts; | |
| 690 le.request = r; | |
| 691 le.captures = e->captures; | |
| 515 | 692 le.ncaptures = e->ncaptures; |
| 509 | 693 |
| 694 len = 1; /* reserve 1 byte for possible "?" */ | |
| 695 | |
| 696 while (*(uintptr_t *) le.ip) { | |
| 697 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 698 len += lcode(&le); | |
| 699 } | |
| 700 | |
| 701 e->buf.len = len; | |
| 702 } | |
| 703 | |
| 515 | 704 if (code->add_args && r->args.len) { |
| 509 | 705 e->buf.len += r->args.len + 1; |
| 706 } | |
| 707 | |
| 708 e->buf.data = ngx_palloc(r->pool, e->buf.len); | |
| 709 if (e->buf.data == NULL) { | |
| 710 e->ip = ngx_http_script_exit; | |
| 711 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 507 | 712 return; |
| 713 } | |
| 714 | |
| 509 | 715 e->quote = code->redirect; |
| 716 | |
| 717 e->pos = e->buf.data; | |
| 718 | |
| 719 e->ip += sizeof(ngx_http_script_regex_code_t); | |
| 720 } | |
| 721 | |
| 722 | |
| 723 void | |
| 724 ngx_http_script_regex_end_code(ngx_http_script_engine_t *e) | |
| 725 { | |
| 577 | 726 u_char *dst, *src; |
| 509 | 727 ngx_http_request_t *r; |
| 728 ngx_http_script_regex_end_code_t *code; | |
| 729 | |
| 730 code = (ngx_http_script_regex_end_code_t *) e->ip; | |
| 731 | |
| 732 r = e->request; | |
| 733 | |
| 734 e->quote = 0; | |
| 735 | |
| 736 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 737 "http script regex end"); | |
| 738 | |
| 739 if (code->redirect) { | |
| 740 | |
| 577 | 741 dst = e->buf.data; |
| 742 src = e->buf.data; | |
| 743 | |
| 601 | 744 ngx_unescape_uri(&dst, &src, e->pos - e->buf.data, NGX_UNESCAPE_URI); |
| 577 | 745 |
| 746 if (src < e->pos) { | |
| 747 dst = ngx_copy(dst, src, e->pos - src); | |
| 748 } | |
| 749 | |
| 750 e->pos = dst; | |
| 751 | |
| 752 if (code->add_args && r->args.len) { | |
| 509 | 753 *e->pos++ = (u_char) (code->args ? '&' : '?'); |
| 573 | 754 e->pos = ngx_copy(e->pos, r->args.data, r->args.len); |
| 509 | 755 } |
| 756 | |
| 757 e->buf.len = e->pos - e->buf.data; | |
| 758 | |
| 759 if (e->log) { | |
| 760 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
| 761 "rewritten redirect: \"%V\"", &e->buf); | |
| 762 } | |
| 763 | |
| 764 r->headers_out.location = ngx_list_push(&r->headers_out.headers); | |
| 765 if (r->headers_out.location == NULL) { | |
| 766 e->ip = ngx_http_script_exit; | |
| 767 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 768 return; | |
| 769 } | |
| 770 | |
| 577 | 771 r->headers_out.location->hash = 1; |
| 509 | 772 r->headers_out.location->key.len = sizeof("Location") - 1; |
| 773 r->headers_out.location->key.data = (u_char *) "Location"; | |
| 774 r->headers_out.location->value = e->buf; | |
| 775 | |
| 776 e->ip += sizeof(ngx_http_script_regex_end_code_t); | |
| 777 return; | |
| 778 } | |
| 779 | |
| 577 | 780 if (e->args) { |
| 509 | 781 e->buf.len = e->args - e->buf.data; |
| 782 | |
| 783 if (code->add_args && r->args.len) { | |
| 784 *e->pos++ = '&'; | |
| 573 | 785 e->pos = ngx_copy(e->pos, r->args.data, r->args.len); |
| 509 | 786 } |
| 787 | |
| 788 r->args.len = e->pos - e->args; | |
| 789 r->args.data = e->args; | |
| 790 | |
| 791 e->args = NULL; | |
| 792 | |
| 793 } else { | |
| 794 e->buf.len = e->pos - e->buf.data; | |
| 795 } | |
| 796 | |
| 797 if (e->log) { | |
| 798 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0, | |
| 799 "rewritten data: \"%V\", args: \"%V\"", | |
| 800 &e->buf, &r->args); | |
| 801 } | |
| 802 | |
| 803 if (code->uri) { | |
| 804 r->uri = e->buf; | |
| 805 | |
| 535 | 806 if (r->uri.len == 0) { |
| 807 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 808 "the rewritten URI has a zero length"); | |
| 809 e->ip = ngx_http_script_exit; | |
| 810 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 811 return; | |
| 812 } | |
| 813 | |
| 509 | 814 if (ngx_http_set_exten(r) != NGX_OK) { |
| 815 e->ip = ngx_http_script_exit; | |
| 816 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 817 return; | |
| 818 } | |
| 819 } | |
| 820 | |
| 821 e->ip += sizeof(ngx_http_script_regex_end_code_t); | |
| 822 } | |
| 823 | |
| 517 | 824 #endif |
| 825 | |
| 509 | 826 |
| 827 void | |
| 828 ngx_http_script_return_code(ngx_http_script_engine_t *e) | |
| 577 | 829 { |
| 509 | 830 ngx_http_script_return_code_t *code; |
| 577 | 831 |
| 509 | 832 code = (ngx_http_script_return_code_t *) e->ip; |
| 833 | |
| 834 e->status = code->status; | |
| 835 | |
| 653 | 836 if (code->status == NGX_HTTP_NO_CONTENT) { |
| 837 e->request->header_only = 1; | |
| 838 } | |
| 839 | |
| 509 | 840 e->ip += sizeof(ngx_http_script_return_code_t) - sizeof(uintptr_t); |
| 479 | 841 } |
| 509 | 842 |
| 843 | |
| 844 void | |
| 527 | 845 ngx_http_script_break_code(ngx_http_script_engine_t *e) |
| 846 { | |
| 847 e->request->uri_changed = 0; | |
| 848 | |
| 849 e->ip = ngx_http_script_exit; | |
| 850 } | |
| 851 | |
| 852 | |
| 853 void | |
| 509 | 854 ngx_http_script_if_code(ngx_http_script_engine_t *e) |
| 855 { | |
| 856 ngx_http_script_if_code_t *code; | |
| 857 | |
| 858 code = (ngx_http_script_if_code_t *) e->ip; | |
| 859 | |
| 860 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 861 "http script if"); | |
| 862 | |
| 863 e->sp--; | |
| 864 | |
| 573 | 865 if (e->sp->len && e->sp->data[0] != '0') { |
| 509 | 866 if (code->loc_conf) { |
| 867 e->request->loc_conf = code->loc_conf; | |
| 535 | 868 ngx_http_update_location_config(e->request); |
| 509 | 869 } |
| 870 | |
| 871 e->ip += sizeof(ngx_http_script_if_code_t); | |
| 872 return; | |
| 873 } | |
| 874 | |
| 875 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 577 | 876 "http script if: false"); |
| 509 | 877 |
| 878 e->ip += code->next; | |
| 879 } | |
| 880 | |
| 881 | |
| 882 void | |
| 577 | 883 ngx_http_script_equal_code(ngx_http_script_engine_t *e) |
| 884 { | |
| 885 ngx_http_variable_value_t *val, *res; | |
| 886 | |
| 887 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 888 "http script equal"); | |
| 889 | |
| 890 e->sp--; | |
| 891 val = e->sp; | |
| 892 res = e->sp - 1; | |
| 893 | |
| 894 e->ip += sizeof(uintptr_t); | |
| 895 | |
| 896 if (val->len == res->len && ngx_strncmp(val->data, res->data, res->len) | |
| 897 == 0) | |
| 898 { | |
| 899 *res = ngx_http_variable_true_value; | |
| 900 return; | |
| 901 } | |
| 902 | |
| 903 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 904 "http script equal: no"); | |
| 905 | |
| 906 *res = ngx_http_variable_null_value; | |
| 907 } | |
| 908 | |
| 909 | |
| 910 void | |
| 911 ngx_http_script_not_equal_code(ngx_http_script_engine_t *e) | |
| 912 { | |
| 913 ngx_http_variable_value_t *val, *res; | |
| 914 | |
| 915 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 916 "http script not equal"); | |
| 917 | |
| 918 e->sp--; | |
| 919 val = e->sp; | |
| 920 res = e->sp - 1; | |
| 921 | |
| 922 e->ip += sizeof(uintptr_t); | |
| 923 | |
| 924 if (val->len == res->len && ngx_strncmp(val->data, res->data, res->len) | |
| 925 == 0) | |
| 926 { | |
| 927 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 928 "http script not equal: no"); | |
| 929 | |
| 930 *res = ngx_http_variable_null_value; | |
| 931 return; | |
| 932 } | |
| 933 | |
| 934 *res = ngx_http_variable_true_value; | |
| 935 } | |
| 936 | |
| 937 | |
| 938 void | |
| 631 | 939 ngx_http_script_file_code(ngx_http_script_engine_t *e) |
| 940 { | |
| 941 ngx_err_t err; | |
| 942 ngx_file_info_t fi; | |
| 943 ngx_http_variable_value_t *value; | |
| 944 ngx_http_script_file_code_t *code; | |
| 945 | |
| 946 value = e->sp - 1; | |
| 947 | |
| 948 code = (ngx_http_script_file_code_t *) e->ip; | |
| 949 e->ip += sizeof(ngx_http_script_file_code_t); | |
| 950 | |
| 951 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 952 "http script file op %p", code->op); | |
| 953 | |
| 954 if (ngx_file_info(value->data, &fi) == -1) { | |
| 955 err = ngx_errno; | |
| 956 | |
| 957 if (err != NGX_ENOENT && err != NGX_ENOTDIR) { | |
| 958 ngx_log_error(NGX_LOG_CRIT, e->request->connection->log, err, | |
| 959 ngx_file_info_n " \"%s\" failed", value->data); | |
| 960 } | |
| 961 | |
| 962 switch (code->op) { | |
| 963 case ngx_http_script_file_plain: | |
| 964 goto false; | |
| 965 case ngx_http_script_file_not_plain: | |
| 966 goto true; | |
| 967 } | |
| 968 | |
| 969 goto false; | |
| 970 } | |
| 971 | |
| 972 switch (code->op) { | |
| 973 case ngx_http_script_file_plain: | |
| 974 if (ngx_is_file(&fi)) { | |
| 975 goto true; | |
| 976 } | |
| 977 goto false; | |
| 978 | |
| 979 case ngx_http_script_file_not_plain: | |
| 980 if (ngx_is_file(&fi)) { | |
| 981 goto false; | |
| 982 } | |
| 983 goto true; | |
| 984 } | |
| 985 | |
| 986 false: | |
| 987 | |
| 988 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 989 "http script file op false"); | |
| 990 | |
| 991 *value = ngx_http_variable_null_value; | |
| 992 return; | |
| 993 | |
| 994 true: | |
| 995 | |
| 996 *value = ngx_http_variable_true_value; | |
| 997 return; | |
| 998 } | |
| 999 | |
| 1000 | |
| 1001 void | |
| 515 | 1002 ngx_http_script_complex_value_code(ngx_http_script_engine_t *e) |
| 1003 { | |
| 1004 size_t len; | |
| 1005 ngx_http_script_engine_t le; | |
| 1006 ngx_http_script_len_code_pt lcode; | |
| 1007 ngx_http_script_complex_value_code_t *code; | |
| 1008 | |
| 1009 code = (ngx_http_script_complex_value_code_t *) e->ip; | |
| 1010 | |
| 1011 e->ip += sizeof(ngx_http_script_complex_value_code_t); | |
| 1012 | |
| 1013 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 1014 "http script complex value"); | |
| 1015 | |
| 1016 ngx_memzero(&le, sizeof(ngx_http_script_engine_t)); | |
| 1017 | |
| 1018 le.ip = code->lengths->elts; | |
| 655 | 1019 le.line = e->line; |
| 515 | 1020 le.request = e->request; |
| 1021 le.captures = e->captures; | |
| 1022 le.ncaptures = e->ncaptures; | |
| 655 | 1023 le.quote = e->quote; |
| 515 | 1024 |
| 1025 for (len = 0; *(uintptr_t *) le.ip; len += lcode(&le)) { | |
| 1026 lcode = *(ngx_http_script_len_code_pt *) le.ip; | |
| 1027 } | |
| 1028 | |
| 1029 e->buf.len = len; | |
| 1030 e->buf.data = ngx_palloc(e->request->pool, len); | |
| 1031 if (e->buf.data == NULL) { | |
| 1032 e->ip = ngx_http_script_exit; | |
| 1033 e->status = NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 1034 return; | |
| 1035 } | |
| 1036 | |
| 1037 e->pos = e->buf.data; | |
| 1038 | |
| 577 | 1039 e->sp->len = e->buf.len; |
| 573 | 1040 e->sp->data = e->buf.data; |
| 515 | 1041 e->sp++; |
| 1042 } | |
| 1043 | |
| 1044 | |
| 1045 void | |
| 509 | 1046 ngx_http_script_value_code(ngx_http_script_engine_t *e) |
| 1047 { | |
| 1048 ngx_http_script_value_code_t *code; | |
| 1049 | |
| 1050 code = (ngx_http_script_value_code_t *) e->ip; | |
| 1051 | |
| 1052 e->ip += sizeof(ngx_http_script_value_code_t); | |
| 1053 | |
| 573 | 1054 e->sp->len = code->text_len; |
| 1055 e->sp->data = (u_char *) code->text_data; | |
| 577 | 1056 |
| 1057 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 1058 "http script value: \"%V\"", e->sp); | |
| 1059 | |
| 509 | 1060 e->sp++; |
| 1061 } | |
| 1062 | |
| 1063 | |
| 1064 void | |
| 1065 ngx_http_script_set_var_code(ngx_http_script_engine_t *e) | |
| 1066 { | |
| 1067 ngx_http_request_t *r; | |
| 1068 ngx_http_script_var_code_t *code; | |
| 1069 | |
| 1070 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 1071 "http script set var"); | |
| 1072 | |
| 1073 code = (ngx_http_script_var_code_t *) e->ip; | |
| 1074 | |
| 1075 e->ip += sizeof(ngx_http_script_var_code_t); | |
| 1076 | |
| 1077 r = e->request; | |
| 1078 | |
| 1079 e->sp--; | |
| 1080 | |
| 573 | 1081 r->variables[code->index].len = e->sp->len; |
| 1082 r->variables[code->index].valid = 1; | |
| 1083 r->variables[code->index].no_cachable = 0; | |
| 1084 r->variables[code->index].not_found = 0; | |
| 1085 r->variables[code->index].data = e->sp->data; | |
| 509 | 1086 } |
| 1087 | |
| 1088 | |
| 1089 void | |
| 637 | 1090 ngx_http_script_var_set_handler_code(ngx_http_script_engine_t *e) |
| 1091 { | |
| 1092 ngx_http_script_var_handler_code_t *code; | |
| 1093 | |
| 1094 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 1095 "http script set var handler"); | |
| 1096 | |
| 1097 code = (ngx_http_script_var_handler_code_t *) e->ip; | |
| 1098 | |
| 1099 e->ip += sizeof(ngx_http_script_var_handler_code_t); | |
| 1100 | |
| 1101 e->sp--; | |
| 1102 | |
| 1103 code->handler(e->request, e->sp, code->data); | |
| 1104 } | |
| 1105 | |
| 1106 | |
| 1107 void | |
| 509 | 1108 ngx_http_script_var_code(ngx_http_script_engine_t *e) |
| 1109 { | |
| 1110 ngx_http_variable_value_t *value; | |
| 1111 ngx_http_script_var_code_t *code; | |
| 1112 | |
| 1113 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 1114 "http script var"); | |
| 1115 | |
| 1116 code = (ngx_http_script_var_code_t *) e->ip; | |
| 1117 | |
| 1118 e->ip += sizeof(ngx_http_script_var_code_t); | |
| 1119 | |
| 573 | 1120 value = ngx_http_get_flushed_variable(e->request, code->index); |
| 509 | 1121 |
| 573 | 1122 if (value && !value->not_found) { |
| 1123 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, e->request->connection->log, 0, | |
| 1124 "http script var: \"%V\"", value); | |
| 1125 | |
| 553 | 1126 *e->sp = *value; |
| 509 | 1127 e->sp++; |
| 1128 | |
| 1129 return; | |
| 1130 } | |
| 1131 | |
| 577 | 1132 *e->sp = ngx_http_variable_null_value; |
| 509 | 1133 e->sp++; |
| 1134 } | |
| 1135 | |
| 1136 | |
| 1137 void | |
| 1138 ngx_http_script_nop_code(ngx_http_script_engine_t *e) | |
| 1139 { | |
| 1140 e->ip += sizeof(uintptr_t); | |
| 1141 } |