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1.1 misho 1: 2: /* 3: * Copyright (C) Igor Sysoev 4: * Copyright (C) Nginx, Inc. 5: */ 6: 7: 8: #include <ngx_config.h> 9: #include <ngx_core.h> 10: #include <ngx_http.h> 11: #include <ngx_http_perl_module.h> 12: 13: 14: typedef struct { 15: PerlInterpreter *perl; 16: HV *nginx; 17: ngx_array_t *modules; 18: ngx_array_t *requires; 19: } ngx_http_perl_main_conf_t; 20: 21: 22: typedef struct { 23: SV *sub; 24: ngx_str_t handler; 25: } ngx_http_perl_loc_conf_t; 26: 27: 28: typedef struct { 29: SV *sub; 30: ngx_str_t handler; 31: } ngx_http_perl_variable_t; 32: 33: 34: #if (NGX_HTTP_SSI) 35: static ngx_int_t ngx_http_perl_ssi(ngx_http_request_t *r, 36: ngx_http_ssi_ctx_t *ssi_ctx, ngx_str_t **params); 37: #endif 38: 39: static char *ngx_http_perl_init_interpreter(ngx_conf_t *cf, 40: ngx_http_perl_main_conf_t *pmcf); 41: static PerlInterpreter *ngx_http_perl_create_interpreter(ngx_conf_t *cf, 42: ngx_http_perl_main_conf_t *pmcf); 43: static ngx_int_t ngx_http_perl_run_requires(pTHX_ ngx_array_t *requires, 44: ngx_log_t *log); 45: static ngx_int_t ngx_http_perl_call_handler(pTHX_ ngx_http_request_t *r, 46: HV *nginx, SV *sub, SV **args, ngx_str_t *handler, ngx_str_t *rv); 47: static void ngx_http_perl_eval_anon_sub(pTHX_ ngx_str_t *handler, SV **sv); 48: 49: static ngx_int_t ngx_http_perl_preconfiguration(ngx_conf_t *cf); 50: static void *ngx_http_perl_create_main_conf(ngx_conf_t *cf); 51: static char *ngx_http_perl_init_main_conf(ngx_conf_t *cf, void *conf); 52: static void *ngx_http_perl_create_loc_conf(ngx_conf_t *cf); 53: static char *ngx_http_perl_merge_loc_conf(ngx_conf_t *cf, void *parent, 54: void *child); 55: static char *ngx_http_perl(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); 56: static char *ngx_http_perl_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); 57: 58: #if (NGX_HAVE_PERL_MULTIPLICITY) 59: static void ngx_http_perl_cleanup_perl(void *data); 60: #endif 61: 62: static ngx_int_t ngx_http_perl_init_worker(ngx_cycle_t *cycle); 63: static void ngx_http_perl_exit(ngx_cycle_t *cycle); 64: 65: 66: static ngx_command_t ngx_http_perl_commands[] = { 67: 68: { ngx_string("perl_modules"), 69: NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, 70: ngx_conf_set_str_array_slot, 71: NGX_HTTP_MAIN_CONF_OFFSET, 72: offsetof(ngx_http_perl_main_conf_t, modules), 73: NULL }, 74: 75: { ngx_string("perl_require"), 76: NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, 77: ngx_conf_set_str_array_slot, 78: NGX_HTTP_MAIN_CONF_OFFSET, 79: offsetof(ngx_http_perl_main_conf_t, requires), 80: NULL }, 81: 82: { ngx_string("perl"), 83: NGX_HTTP_LOC_CONF|NGX_HTTP_LMT_CONF|NGX_CONF_TAKE1, 84: ngx_http_perl, 85: NGX_HTTP_LOC_CONF_OFFSET, 86: 0, 87: NULL }, 88: 89: { ngx_string("perl_set"), 90: NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE2, 91: ngx_http_perl_set, 92: NGX_HTTP_LOC_CONF_OFFSET, 93: 0, 94: NULL }, 95: 96: ngx_null_command 97: }; 98: 99: 100: static ngx_http_module_t ngx_http_perl_module_ctx = { 101: ngx_http_perl_preconfiguration, /* preconfiguration */ 102: NULL, /* postconfiguration */ 103: 104: ngx_http_perl_create_main_conf, /* create main configuration */ 105: ngx_http_perl_init_main_conf, /* init main configuration */ 106: 107: NULL, /* create server configuration */ 108: NULL, /* merge server configuration */ 109: 110: ngx_http_perl_create_loc_conf, /* create location configuration */ 111: ngx_http_perl_merge_loc_conf /* merge location configuration */ 112: }; 113: 114: 115: ngx_module_t ngx_http_perl_module = { 116: NGX_MODULE_V1, 117: &ngx_http_perl_module_ctx, /* module context */ 118: ngx_http_perl_commands, /* module directives */ 119: NGX_HTTP_MODULE, /* module type */ 120: NULL, /* init master */ 121: NULL, /* init module */ 122: ngx_http_perl_init_worker, /* init process */ 123: NULL, /* init thread */ 124: NULL, /* exit thread */ 125: NULL, /* exit process */ 126: ngx_http_perl_exit, /* exit master */ 127: NGX_MODULE_V1_PADDING 128: }; 129: 130: 131: #if (NGX_HTTP_SSI) 132: 133: #define NGX_HTTP_PERL_SSI_SUB 0 134: #define NGX_HTTP_PERL_SSI_ARG 1 135: 136: 137: static ngx_http_ssi_param_t ngx_http_perl_ssi_params[] = { 138: { ngx_string("sub"), NGX_HTTP_PERL_SSI_SUB, 1, 0 }, 139: { ngx_string("arg"), NGX_HTTP_PERL_SSI_ARG, 0, 1 }, 140: { ngx_null_string, 0, 0, 0 } 141: }; 142: 143: static ngx_http_ssi_command_t ngx_http_perl_ssi_command = { 144: ngx_string("perl"), ngx_http_perl_ssi, ngx_http_perl_ssi_params, 0, 0, 1 145: }; 146: 147: #endif 148: 149: 150: static ngx_str_t ngx_null_name = ngx_null_string; 151: static HV *nginx_stash; 152: 153: #if (NGX_HAVE_PERL_MULTIPLICITY) 154: static ngx_uint_t ngx_perl_term; 155: #else 156: static PerlInterpreter *perl; 157: #endif 158: 159: 160: static void 161: ngx_http_perl_xs_init(pTHX) 162: { 163: newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, __FILE__); 164: 165: nginx_stash = gv_stashpv("nginx", TRUE); 166: } 167: 168: 169: static ngx_int_t 170: ngx_http_perl_handler(ngx_http_request_t *r) 171: { 172: r->main->count++; 173: 174: ngx_http_perl_handle_request(r); 175: 176: return NGX_DONE; 177: } 178: 179: 180: void 181: ngx_http_perl_handle_request(ngx_http_request_t *r) 182: { 183: SV *sub; 184: ngx_int_t rc; 185: ngx_str_t uri, args, *handler; 186: ngx_http_perl_ctx_t *ctx; 187: ngx_http_perl_loc_conf_t *plcf; 188: ngx_http_perl_main_conf_t *pmcf; 189: 190: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl handler"); 191: 192: ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); 193: 194: if (ctx == NULL) { 195: ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); 196: if (ctx == NULL) { 197: ngx_http_finalize_request(r, NGX_ERROR); 198: return; 199: } 200: 201: ngx_http_set_ctx(r, ctx, ngx_http_perl_module); 202: } 203: 204: pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); 205: 206: { 207: 208: dTHXa(pmcf->perl); 209: PERL_SET_CONTEXT(pmcf->perl); 210: 211: if (ctx->next == NULL) { 212: plcf = ngx_http_get_module_loc_conf(r, ngx_http_perl_module); 213: sub = plcf->sub; 214: handler = &plcf->handler; 215: 216: } else { 217: sub = ctx->next; 218: handler = &ngx_null_name; 219: ctx->next = NULL; 220: } 221: 222: rc = ngx_http_perl_call_handler(aTHX_ r, pmcf->nginx, sub, NULL, handler, 223: NULL); 224: 225: } 226: 227: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 228: "perl handler done: %i", rc); 229: 230: if (rc == NGX_DONE) { 231: ngx_http_finalize_request(r, rc); 232: return; 233: } 234: 235: if (rc > 600) { 236: rc = NGX_OK; 237: } 238: 239: if (ctx->redirect_uri.len) { 240: uri = ctx->redirect_uri; 241: args = ctx->redirect_args; 242: 243: } else { 244: uri.len = 0; 245: } 246: 247: ctx->filename.data = NULL; 248: ctx->redirect_uri.len = 0; 249: 250: if (ctx->done || ctx->next) { 251: ngx_http_finalize_request(r, NGX_DONE); 252: return; 253: } 254: 255: if (uri.len) { 256: ngx_http_internal_redirect(r, &uri, &args); 257: ngx_http_finalize_request(r, NGX_DONE); 258: return; 259: } 260: 261: if (rc == NGX_OK || rc == NGX_HTTP_OK) { 262: ngx_http_send_special(r, NGX_HTTP_LAST); 263: ctx->done = 1; 264: } 265: 266: ngx_http_finalize_request(r, rc); 267: } 268: 269: 270: void 271: ngx_http_perl_sleep_handler(ngx_http_request_t *r) 272: { 273: ngx_event_t *wev; 274: 275: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 276: "perl sleep handler"); 277: 278: wev = r->connection->write; 279: 280: if (wev->timedout) { 281: wev->timedout = 0; 282: ngx_http_perl_handle_request(r); 283: return; 284: } 285: 286: if (ngx_handle_write_event(wev, 0) != NGX_OK) { 287: ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); 288: } 289: } 290: 291: 292: static ngx_int_t 293: ngx_http_perl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, 294: uintptr_t data) 295: { 296: ngx_http_perl_variable_t *pv = (ngx_http_perl_variable_t *) data; 297: 298: ngx_int_t rc; 299: ngx_str_t value; 300: ngx_http_perl_ctx_t *ctx; 301: ngx_http_perl_main_conf_t *pmcf; 302: 303: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 304: "perl variable handler"); 305: 306: ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); 307: 308: if (ctx == NULL) { 309: ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); 310: if (ctx == NULL) { 311: return NGX_ERROR; 312: } 313: 314: ngx_http_set_ctx(r, ctx, ngx_http_perl_module); 315: } 316: 317: pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); 318: 319: value.data = NULL; 320: 321: { 322: 323: dTHXa(pmcf->perl); 324: PERL_SET_CONTEXT(pmcf->perl); 325: 326: rc = ngx_http_perl_call_handler(aTHX_ r, pmcf->nginx, pv->sub, NULL, 327: &pv->handler, &value); 328: 329: } 330: 331: if (value.data) { 332: v->len = value.len; 333: v->valid = 1; 334: v->no_cacheable = 0; 335: v->not_found = 0; 336: v->data = value.data; 337: 338: } else { 339: v->not_found = 1; 340: } 341: 342: ctx->filename.data = NULL; 343: ctx->redirect_uri.len = 0; 344: 345: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 346: "perl variable done"); 347: 348: return rc; 349: } 350: 351: 352: #if (NGX_HTTP_SSI) 353: 354: static ngx_int_t 355: ngx_http_perl_ssi(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ssi_ctx, 356: ngx_str_t **params) 357: { 358: SV *sv, **asv; 359: ngx_int_t rc; 360: ngx_str_t *handler, **args; 361: ngx_uint_t i; 362: ngx_http_perl_ctx_t *ctx; 363: ngx_http_perl_main_conf_t *pmcf; 364: 365: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, 366: "perl ssi handler"); 367: 368: ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); 369: 370: if (ctx == NULL) { 371: ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); 372: if (ctx == NULL) { 373: return NGX_ERROR; 374: } 375: 376: ngx_http_set_ctx(r, ctx, ngx_http_perl_module); 377: } 378: 379: pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); 380: 381: ctx->ssi = ssi_ctx; 382: 383: handler = params[NGX_HTTP_PERL_SSI_SUB]; 384: handler->data[handler->len] = '\0'; 385: 386: { 387: 388: dTHXa(pmcf->perl); 389: PERL_SET_CONTEXT(pmcf->perl); 390: 391: #if 0 392: 393: /* the code is disabled to force the precompiled perl code using only */ 394: 395: ngx_http_perl_eval_anon_sub(aTHX_ handler, &sv); 396: 397: if (sv == &PL_sv_undef) { 398: ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, 399: "eval_pv(\"%V\") failed", handler); 400: return NGX_ERROR; 401: } 402: 403: if (sv == NULL) { 404: sv = newSVpvn((char *) handler->data, handler->len); 405: } 406: 407: #endif 408: 409: sv = newSVpvn((char *) handler->data, handler->len); 410: 411: args = ¶ms[NGX_HTTP_PERL_SSI_ARG]; 412: 413: if (args) { 414: 415: for (i = 0; args[i]; i++) { /* void */ } 416: 417: asv = ngx_pcalloc(r->pool, (i + 1) * sizeof(SV *)); 418: 419: if (asv == NULL) { 420: SvREFCNT_dec(sv); 421: return NGX_ERROR; 422: } 423: 424: asv[0] = (SV *) i; 425: 426: for (i = 0; args[i]; i++) { 427: asv[i + 1] = newSVpvn((char *) args[i]->data, args[i]->len); 428: } 429: 430: } else { 431: asv = NULL; 432: } 433: 434: rc = ngx_http_perl_call_handler(aTHX_ r, pmcf->nginx, sv, asv, handler, 435: NULL); 436: 437: SvREFCNT_dec(sv); 438: 439: } 440: 441: ctx->filename.data = NULL; 442: ctx->redirect_uri.len = 0; 443: ctx->ssi = NULL; 444: 445: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl ssi done"); 446: 447: return rc; 448: } 449: 450: #endif 451: 452: 453: static char * 454: ngx_http_perl_init_interpreter(ngx_conf_t *cf, ngx_http_perl_main_conf_t *pmcf) 455: { 456: ngx_str_t *m; 457: ngx_uint_t i; 458: #if (NGX_HAVE_PERL_MULTIPLICITY) 459: ngx_pool_cleanup_t *cln; 460: 461: cln = ngx_pool_cleanup_add(cf->pool, 0); 462: if (cln == NULL) { 463: return NGX_CONF_ERROR; 464: } 465: 466: #endif 467: 468: #ifdef NGX_PERL_MODULES 469: if (pmcf->modules == NGX_CONF_UNSET_PTR) { 470: 471: pmcf->modules = ngx_array_create(cf->pool, 1, sizeof(ngx_str_t)); 472: if (pmcf->modules == NULL) { 473: return NGX_CONF_ERROR; 474: } 475: 476: m = ngx_array_push(pmcf->modules); 477: if (m == NULL) { 478: return NGX_CONF_ERROR; 479: } 480: 481: ngx_str_set(m, NGX_PERL_MODULES); 482: } 483: #endif 484: 485: if (pmcf->modules != NGX_CONF_UNSET_PTR) { 486: m = pmcf->modules->elts; 487: for (i = 0; i < pmcf->modules->nelts; i++) { 488: if (ngx_conf_full_name(cf->cycle, &m[i], 0) != NGX_OK) { 489: return NGX_CONF_ERROR; 490: } 491: } 492: } 493: 494: #if !(NGX_HAVE_PERL_MULTIPLICITY) 495: 496: if (perl) { 497: 498: if (ngx_set_environment(cf->cycle, NULL) == NULL) { 499: return NGX_CONF_ERROR; 500: } 501: 502: if (ngx_http_perl_run_requires(aTHX_ pmcf->requires, cf->log) 503: != NGX_OK) 504: { 505: return NGX_CONF_ERROR; 506: } 507: 508: pmcf->perl = perl; 509: pmcf->nginx = nginx_stash; 510: 511: return NGX_CONF_OK; 512: } 513: 514: #endif 515: 516: if (nginx_stash == NULL) { 517: PERL_SYS_INIT(&ngx_argc, &ngx_argv); 518: } 519: 520: pmcf->perl = ngx_http_perl_create_interpreter(cf, pmcf); 521: 522: if (pmcf->perl == NULL) { 523: return NGX_CONF_ERROR; 524: } 525: 526: pmcf->nginx = nginx_stash; 527: 528: #if (NGX_HAVE_PERL_MULTIPLICITY) 529: 530: cln->handler = ngx_http_perl_cleanup_perl; 531: cln->data = pmcf->perl; 532: 533: #else 534: 535: perl = pmcf->perl; 536: 537: #endif 538: 539: return NGX_CONF_OK; 540: } 541: 542: 543: static PerlInterpreter * 544: ngx_http_perl_create_interpreter(ngx_conf_t *cf, 545: ngx_http_perl_main_conf_t *pmcf) 546: { 547: int n; 548: STRLEN len; 549: SV *sv; 550: char *ver, **embedding; 551: ngx_str_t *m; 552: ngx_uint_t i; 553: PerlInterpreter *perl; 554: 555: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, cf->log, 0, "create perl interpreter"); 556: 557: if (ngx_set_environment(cf->cycle, NULL) == NULL) { 558: return NULL; 559: } 560: 561: perl = perl_alloc(); 562: if (perl == NULL) { 563: ngx_log_error(NGX_LOG_ALERT, cf->log, 0, "perl_alloc() failed"); 564: return NULL; 565: } 566: 567: { 568: 569: dTHXa(perl); 570: PERL_SET_CONTEXT(perl); 571: 572: perl_construct(perl); 573: 574: #ifdef PERL_EXIT_DESTRUCT_END 575: PL_exit_flags |= PERL_EXIT_DESTRUCT_END; 576: #endif 577: 578: n = (pmcf->modules != NGX_CONF_UNSET_PTR) ? pmcf->modules->nelts * 2 : 0; 579: 580: embedding = ngx_palloc(cf->pool, (4 + n) * sizeof(char *)); 581: if (embedding == NULL) { 582: goto fail; 583: } 584: 585: embedding[0] = ""; 586: 587: if (n++) { 588: m = pmcf->modules->elts; 589: for (i = 0; i < pmcf->modules->nelts; i++) { 590: embedding[2 * i + 1] = "-I"; 591: embedding[2 * i + 2] = (char *) m[i].data; 592: } 593: } 594: 595: embedding[n++] = "-Mnginx"; 596: embedding[n++] = "-e"; 597: embedding[n++] = "0"; 598: 599: n = perl_parse(perl, ngx_http_perl_xs_init, n, embedding, NULL); 600: 601: if (n != 0) { 602: ngx_log_error(NGX_LOG_ALERT, cf->log, 0, "perl_parse() failed: %d", n); 603: goto fail; 604: } 605: 606: sv = get_sv("nginx::VERSION", FALSE); 607: ver = SvPV(sv, len); 608: 609: if (ngx_strcmp(ver, NGINX_VERSION) != 0) { 610: ngx_log_error(NGX_LOG_ALERT, cf->log, 0, 611: "version " NGINX_VERSION " of nginx.pm is required, " 612: "but %s was found", ver); 613: goto fail; 614: } 615: 616: if (ngx_http_perl_run_requires(aTHX_ pmcf->requires, cf->log) != NGX_OK) { 617: goto fail; 618: } 619: 620: } 621: 622: return perl; 623: 624: fail: 625: 626: (void) perl_destruct(perl); 627: 628: perl_free(perl); 629: 630: return NULL; 631: } 632: 633: 634: static ngx_int_t 635: ngx_http_perl_run_requires(pTHX_ ngx_array_t *requires, ngx_log_t *log) 636: { 637: u_char *err; 638: STRLEN len; 639: ngx_str_t *script; 640: ngx_uint_t i; 641: 642: if (requires == NGX_CONF_UNSET_PTR) { 643: return NGX_OK; 644: } 645: 646: script = requires->elts; 647: for (i = 0; i < requires->nelts; i++) { 648: 649: require_pv((char *) script[i].data); 650: 651: if (SvTRUE(ERRSV)) { 652: 653: err = (u_char *) SvPV(ERRSV, len); 654: while (--len && (err[len] == CR || err[len] == LF)) { /* void */ } 655: 656: ngx_log_error(NGX_LOG_EMERG, log, 0, 657: "require_pv(\"%s\") failed: \"%*s\"", 658: script[i].data, len + 1, err); 659: 660: return NGX_ERROR; 661: } 662: } 663: 664: return NGX_OK; 665: } 666: 667: 668: static ngx_int_t 669: ngx_http_perl_call_handler(pTHX_ ngx_http_request_t *r, HV *nginx, SV *sub, 670: SV **args, ngx_str_t *handler, ngx_str_t *rv) 671: { 672: SV *sv; 673: int n, status; 674: char *line; 675: u_char *err; 676: STRLEN len, n_a; 677: ngx_uint_t i; 678: ngx_connection_t *c; 679: 680: dSP; 681: 682: status = 0; 683: 684: ENTER; 685: SAVETMPS; 686: 687: PUSHMARK(sp); 688: 689: sv = sv_2mortal(sv_bless(newRV_noinc(newSViv(PTR2IV(r))), nginx)); 690: XPUSHs(sv); 691: 692: if (args) { 693: EXTEND(sp, (intptr_t) args[0]); 694: 695: for (i = 1; i <= (ngx_uint_t) args[0]; i++) { 696: PUSHs(sv_2mortal(args[i])); 697: } 698: } 699: 700: PUTBACK; 701: 702: c = r->connection; 703: 704: n = call_sv(sub, G_EVAL); 705: 706: SPAGAIN; 707: 708: if (n) { 709: if (rv == NULL) { 710: status = POPi; 711: 712: ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, 713: "call_sv: %d", status); 714: 715: } else { 716: line = SvPVx(POPs, n_a); 717: rv->len = n_a; 718: 719: rv->data = ngx_pnalloc(r->pool, n_a); 720: if (rv->data == NULL) { 721: return NGX_ERROR; 722: } 723: 724: ngx_memcpy(rv->data, line, n_a); 725: } 726: } 727: 728: PUTBACK; 729: 730: FREETMPS; 731: LEAVE; 732: 733: /* check $@ */ 734: 735: if (SvTRUE(ERRSV)) { 736: 737: err = (u_char *) SvPV(ERRSV, len); 738: while (--len && (err[len] == CR || err[len] == LF)) { /* void */ } 739: 740: ngx_log_error(NGX_LOG_ERR, c->log, 0, 741: "call_sv(\"%V\") failed: \"%*s\"", handler, len + 1, err); 742: 743: if (rv) { 744: return NGX_ERROR; 745: } 746: 747: return NGX_HTTP_INTERNAL_SERVER_ERROR; 748: } 749: 750: if (n != 1) { 751: ngx_log_error(NGX_LOG_ALERT, c->log, 0, 752: "call_sv(\"%V\") returned %d results", handler, n); 753: status = NGX_OK; 754: } 755: 756: if (rv) { 757: return NGX_OK; 758: } 759: 760: return (ngx_int_t) status; 761: } 762: 763: 764: static void 765: ngx_http_perl_eval_anon_sub(pTHX_ ngx_str_t *handler, SV **sv) 766: { 767: u_char *p; 768: 769: for (p = handler->data; *p; p++) { 770: if (*p != ' ' && *p != '\t' && *p != CR && *p != LF) { 771: break; 772: } 773: } 774: 775: if (ngx_strncmp(p, "sub ", 4) == 0 776: || ngx_strncmp(p, "sub{", 4) == 0 777: || ngx_strncmp(p, "use ", 4) == 0) 778: { 779: *sv = eval_pv((char *) p, FALSE); 780: 781: /* eval_pv() does not set ERRSV on failure */ 782: 783: return; 784: } 785: 786: *sv = NULL; 787: } 788: 789: 790: static void * 791: ngx_http_perl_create_main_conf(ngx_conf_t *cf) 792: { 793: ngx_http_perl_main_conf_t *pmcf; 794: 795: pmcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_perl_main_conf_t)); 796: if (pmcf == NULL) { 797: return NULL; 798: } 799: 800: pmcf->modules = NGX_CONF_UNSET_PTR; 801: pmcf->requires = NGX_CONF_UNSET_PTR; 802: 803: return pmcf; 804: } 805: 806: 807: static char * 808: ngx_http_perl_init_main_conf(ngx_conf_t *cf, void *conf) 809: { 810: ngx_http_perl_main_conf_t *pmcf = conf; 811: 812: if (pmcf->perl == NULL) { 813: if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { 814: return NGX_CONF_ERROR; 815: } 816: } 817: 818: return NGX_CONF_OK; 819: } 820: 821: 822: #if (NGX_HAVE_PERL_MULTIPLICITY) 823: 824: static void 825: ngx_http_perl_cleanup_perl(void *data) 826: { 827: PerlInterpreter *perl = data; 828: 829: PERL_SET_CONTEXT(perl); 830: 831: (void) perl_destruct(perl); 832: 833: perl_free(perl); 834: 835: if (ngx_perl_term) { 836: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ngx_cycle->log, 0, "perl term"); 837: 838: PERL_SYS_TERM(); 839: } 840: } 841: 842: #endif 843: 844: 845: static ngx_int_t 846: ngx_http_perl_preconfiguration(ngx_conf_t *cf) 847: { 848: #if (NGX_HTTP_SSI) 849: ngx_int_t rc; 850: ngx_http_ssi_main_conf_t *smcf; 851: 852: smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module); 853: 854: rc = ngx_hash_add_key(&smcf->commands, &ngx_http_perl_ssi_command.name, 855: &ngx_http_perl_ssi_command, NGX_HASH_READONLY_KEY); 856: 857: if (rc != NGX_OK) { 858: if (rc == NGX_BUSY) { 859: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, 860: "conflicting SSI command \"%V\"", 861: &ngx_http_perl_ssi_command.name); 862: } 863: 864: return NGX_ERROR; 865: } 866: #endif 867: 868: return NGX_OK; 869: } 870: 871: 872: static void * 873: ngx_http_perl_create_loc_conf(ngx_conf_t *cf) 874: { 875: ngx_http_perl_loc_conf_t *plcf; 876: 877: plcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_perl_loc_conf_t)); 878: if (plcf == NULL) { 879: return NULL; 880: } 881: 882: /* 883: * set by ngx_pcalloc(): 884: * 885: * plcf->handler = { 0, NULL }; 886: */ 887: 888: return plcf; 889: } 890: 891: 892: static char * 893: ngx_http_perl_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) 894: { 895: ngx_http_perl_loc_conf_t *prev = parent; 896: ngx_http_perl_loc_conf_t *conf = child; 897: 898: if (conf->sub == NULL) { 899: conf->sub = prev->sub; 900: conf->handler = prev->handler; 901: } 902: 903: return NGX_CONF_OK; 904: } 905: 906: 907: static char * 908: ngx_http_perl(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) 909: { 910: ngx_http_perl_loc_conf_t *plcf = conf; 911: 912: ngx_str_t *value; 913: ngx_http_core_loc_conf_t *clcf; 914: ngx_http_perl_main_conf_t *pmcf; 915: 916: value = cf->args->elts; 917: 918: if (plcf->handler.data) { 919: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, 920: "duplicate perl handler \"%V\"", &value[1]); 921: return NGX_CONF_ERROR; 922: } 923: 924: pmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_perl_module); 925: 926: if (pmcf->perl == NULL) { 927: if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { 928: return NGX_CONF_ERROR; 929: } 930: } 931: 932: plcf->handler = value[1]; 933: 934: { 935: 936: dTHXa(pmcf->perl); 937: PERL_SET_CONTEXT(pmcf->perl); 938: 939: ngx_http_perl_eval_anon_sub(aTHX_ &value[1], &plcf->sub); 940: 941: if (plcf->sub == &PL_sv_undef) { 942: ngx_conf_log_error(NGX_LOG_ERR, cf, 0, 943: "eval_pv(\"%V\") failed", &value[1]); 944: return NGX_CONF_ERROR; 945: } 946: 947: if (plcf->sub == NULL) { 948: plcf->sub = newSVpvn((char *) value[1].data, value[1].len); 949: } 950: 951: } 952: 953: clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); 954: clcf->handler = ngx_http_perl_handler; 955: 956: return NGX_CONF_OK; 957: } 958: 959: 960: static char * 961: ngx_http_perl_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) 962: { 963: ngx_int_t index; 964: ngx_str_t *value; 965: ngx_http_variable_t *v; 966: ngx_http_perl_variable_t *pv; 967: ngx_http_perl_main_conf_t *pmcf; 968: 969: value = cf->args->elts; 970: 971: if (value[1].data[0] != '$') { 972: ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, 973: "invalid variable name \"%V\"", &value[1]); 974: return NGX_CONF_ERROR; 975: } 976: 977: value[1].len--; 978: value[1].data++; 979: 980: v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGEABLE); 981: if (v == NULL) { 982: return NGX_CONF_ERROR; 983: } 984: 985: pv = ngx_palloc(cf->pool, sizeof(ngx_http_perl_variable_t)); 986: if (pv == NULL) { 987: return NGX_CONF_ERROR; 988: } 989: 990: index = ngx_http_get_variable_index(cf, &value[1]); 991: if (index == NGX_ERROR) { 992: return NGX_CONF_ERROR; 993: } 994: 995: pmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_perl_module); 996: 997: if (pmcf->perl == NULL) { 998: if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { 999: return NGX_CONF_ERROR; 1000: } 1001: } 1002: 1003: pv->handler = value[2]; 1004: 1005: { 1006: 1007: dTHXa(pmcf->perl); 1008: PERL_SET_CONTEXT(pmcf->perl); 1009: 1010: ngx_http_perl_eval_anon_sub(aTHX_ &value[2], &pv->sub); 1011: 1012: if (pv->sub == &PL_sv_undef) { 1013: ngx_conf_log_error(NGX_LOG_ERR, cf, 0, 1014: "eval_pv(\"%V\") failed", &value[2]); 1015: return NGX_CONF_ERROR; 1016: } 1017: 1018: if (pv->sub == NULL) { 1019: pv->sub = newSVpvn((char *) value[2].data, value[2].len); 1020: } 1021: 1022: } 1023: 1024: v->get_handler = ngx_http_perl_variable; 1025: v->data = (uintptr_t) pv; 1026: 1027: return NGX_CONF_OK; 1028: } 1029: 1030: 1031: static ngx_int_t 1032: ngx_http_perl_init_worker(ngx_cycle_t *cycle) 1033: { 1034: ngx_http_perl_main_conf_t *pmcf; 1035: 1036: pmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_perl_module); 1037: 1038: if (pmcf) { 1039: dTHXa(pmcf->perl); 1040: PERL_SET_CONTEXT(pmcf->perl); 1041: 1042: /* set worker's $$ */ 1043: 1044: sv_setiv(GvSV(gv_fetchpv("$", TRUE, SVt_PV)), (I32) ngx_pid); 1045: } 1046: 1047: return NGX_OK; 1048: } 1049: 1050: 1051: static void 1052: ngx_http_perl_exit(ngx_cycle_t *cycle) 1053: { 1054: #if (NGX_HAVE_PERL_MULTIPLICITY) 1055: 1056: /* 1057: * the master exit hook is run before global pool cleanup, 1058: * therefore just set flag here 1059: */ 1060: 1061: ngx_perl_term = 1; 1062: 1063: #else 1064: 1065: if (nginx_stash) { 1066: ngx_log_debug0(NGX_LOG_DEBUG_HTTP, cycle->log, 0, "perl term"); 1067: 1068: (void) perl_destruct(perl); 1069: 1070: perl_free(perl); 1071: 1072: PERL_SYS_TERM(); 1073: } 1074: 1075: #endif 1076: }