src/request.c

   1 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2
   3 /*  Monkey HTTP Daemon
   4  *  ------------------
   5  *  Copyright (C) 2001-2010, Eduardo Silva P. <edsiper@gmail.com>
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU Library General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  20  */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <sys/stat.h>
  25 #include <unistd.h>
  26 #include <string.h>
  27 #include <sys/socket.h>
  28 #include <sys/time.h>
  29 #include <sys/ioctl.h>
  30 #include <time.h>
  31 #include <netdb.h>
  32 #include <sys/wait.h>
  33 #include <signal.h>
  34 #include <errno.h>
  35
  36 #include <string.h>
  37
  38 #include <arpa/inet.h>
  39 #include <netinet/in.h>
  40 #include <sys/types.h>
  41
  42 #include "request.h"
  43 #include "monkey.h"
  44 #include "http.h"
  45 #include "http_status.h"
  46 #include "string.h"
  47 #include "str.h"
  48 #include "config.h"
  49 #include "scheduler.h"
  50 #include "epoll.h"
  51 #include "socket.h"
  52 #include "utils.h"
  53 #include "header.h"
  54 #include "user.h"
  55 #include "method.h"
  56 #include "memory.h"
  57 #include "socket.h"
  58 #include "cache.h"
  59 #include "clock.h"
  60 #include "utils.h"
  61 #include "plugin.h"
  62
  63 struct request *mk_request_parse(struct client_request *cr)
  64 {
  65     int i, end;
  66     int blocks = 0;
  67     struct request *cr_buf = 0, *cr_search = 0;
  68
  69     for (i = 0; i <= cr->body_pos_end; i++) {
  70         /* Look for CRLFCRLF (\r\n\r\n), maybe some pipelining
  71          * request can be involved.
  72          */
  73         end = mk_string_search(cr->body + i, mk_endblock.data) + i;
  74
  75         if (end <  0) {
  76             return NULL;
  77         }
  78
  79         /* Allocating request block */
  80         cr_buf = mk_request_alloc();
  81
  82         /* We point the block with a mk_pointer */
  83         cr_buf->body.data = cr->body + i;
  84         cr_buf->body.len = end - i;
  85
  86         /* Method, previous catch in mk_http_pending_request */
  87         if (i == 0) {
  88             cr_buf->method = cr->first_method;
  89         }
  90         else {
  91             cr_buf->method = mk_http_method_get(cr_buf->body.data);
  92         }
  93         cr_buf->next = NULL;
  94
  95         /* Looking for POST data */
  96         if (cr_buf->method == HTTP_METHOD_POST) {
  97             cr_buf->post_variables = mk_method_post_get_vars(cr->body,
  98                                                              end + mk_endblock.len);
  99             if (cr_buf->post_variables.len >= 0) {
 100                 i += cr_buf->post_variables.len;
 101             }
 102         }
 103
 104         /* Increase index to the end of the current block */
 105         i = (end + mk_endblock.len) - 1;
 106
 107         /* Link block */
 108         if (!cr->request) {
 109             cr->request = cr_buf;
 110         }
 111         else {
 112             cr_search = cr->request;
 113             while (cr_search) {
 114                 if (cr_search->next == NULL) {
 115                     cr_search->next = cr_buf;
 116                     break;
 117                 }
 118                 else {
 119                     cr_search = cr_search->next;
 120                 }
 121             }
 122         }
 123
 124         /* Update counter */
 125         blocks++;
 126     }
 127
 128
 129     /* DEBUG BLOCKS
 130     cr_search = cr->request;
 131     while(cr_search){
 132         printf("\n");
 133         MK_TRACE("BLOCK INIT");
 134         mk_pointer_print(cr_search->body);
 135         MK_TRACE("BLOCK_END");
 136
 137         cr_search = cr_search->next;
 138     }
 139     */
 140
 141     /* Checking pipelining connection */
 142     cr_search = cr->request;
 143     if (blocks > 1) {
 144         while (cr_search) {
 145             /* Pipelining request must use GET or HEAD methods */
 146             if (cr_search->method != HTTP_METHOD_GET &&
 147                 cr_search->method != HTTP_METHOD_HEAD) {
 148                 return NULL;
 149             }
 150             cr_search = cr_search->next;
 151         }
 152
 153         cr->pipelined = TRUE;
 154     }
 155
 156     return cr->request;
 157 }
 158
 159 int mk_handler_read(int socket, struct client_request *cr)
 160 {
 161     int bytes;
 162     int pending = 0;
 163     int available = 0;
 164     int ret;
 165     int new_size;
 166     char *tmp = 0;
 167
 168     /* Check amount of data reported */
 169     ret = ioctl(socket, FIONREAD, &pending);
 170     if (ret == -1) {
 171         mk_request_client_remove(socket);
 172         return -1;
 173     }
 174
 175     /* Reallocate buffer size if pending data does not have space */
 176     if (pending > 0 && (pending >= (cr->body_size - (cr->body_length - 1)))) {
 177         /* check available space */
 178         available = (cr->body_size - cr->body_length) + MK_REQUEST_CHUNK;
 179         if (pending < available) {
 180             new_size = cr->body_size + MK_REQUEST_CHUNK + 1;
 181         }
 182         else {
 183             new_size = cr->body_size + pending + 1;
 184         }
 185
 186         if (new_size > config->max_request_size) {
 187             return -1;
 188         }
 189
 190         tmp = mk_mem_realloc(cr->body, new_size);
 191         if (tmp) {
 192             cr->body = tmp;
 193             cr->body_size = new_size;
 194         }
 195         else {
 196             mk_request_client_remove(socket);
 197             return -1;
 198         }
 199     }
 200
 201     /* Read content */
 202     bytes = mk_socket_read(socket, cr->body + cr->body_length,
 203                            (cr->body_size - cr->body_length) );
 204
 205     if (bytes < 0) {
 206         if (errno == EAGAIN) {
 207             return 1;
 208         }
 209         else {
 210             mk_request_client_remove(socket);
 211             return -1;
 212         }
 213     }
 214     if (bytes == 0) {
 215         mk_request_client_remove(socket);
 216         return -1;
 217     }
 218
 219     if (bytes >= 0) {
 220         cr->body_length += bytes;
 221         cr->body[cr->body_length] = '\0';
 222     }
 223
 224     return bytes;
 225 }
 226
 227 int mk_handler_write(int socket, struct client_request *cr)
 228 {
 229     int bytes, final_status = 0;
 230     struct request *sr;
 231
 232     /*
 233      * Get node from schedule list node which contains
 234      * the information regarding to the current thread
 235      */
 236     if (!cr) {
 237         return -1;
 238     }
 239
 240     if (!cr->request) {
 241         if (!mk_request_parse(cr)) {
 242             return -1;
 243         }
 244     }
 245
 246     sr = cr->request;
 247     while (sr) {
 248         /* Request not processed also no plugin has take some action */
 249         if (sr->bytes_to_send < 0 && !sr->handled_by) {
 250             final_status = mk_request_process(cr, sr);
 251         }
 252         /* Request with data to send by static file sender */
 253         else if (sr->bytes_to_send > 0 && !sr->handled_by) {
 254             final_status = bytes = mk_http_send_file(cr, sr);
 255         }
 256
 257         /*
 258          * If we got an error, we don't want to parse
 259          * and send information for another pipelined request
 260          */
 261         if (final_status > 0) {
 262             return final_status;
 263         }
 264         else if (final_status <= 0) {
 265             /* STAGE_40, request has ended */
 266             mk_plugin_stage_run(MK_PLUGIN_STAGE_40, cr->socket,
 267                                 NULL, cr, sr);
 268             switch (final_status) {
 269             case EXIT_NORMAL:
 270             case EXIT_ERROR:
 271                  if (sr->close_now == VAR_ON) {
 272                     return -1;
 273                 }
 274                 break;
 275             case EXIT_ABORT:
 276                   return -1;
 277             }
 278         }
 279
 280         sr = sr->next;
 281     }
 282
 283     /* If we are here, is because all pipelined request were
 284      * processed successfully, let's return 0;
 285      */
 286     return 0;
 287 }
 288
 289 int mk_request_process(struct client_request *cr, struct request *s_request)
 290 {
 291     int status = 0;
 292     struct host *host;
 293
 294     status = mk_request_header_process(s_request);
 295     if (status < 0) {
 296         mk_header_set_http_status(s_request, M_CLIENT_BAD_REQUEST);
 297         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request);
 298         return EXIT_ABORT;
 299     }
 300
 301     switch (s_request->method) {
 302     case METHOD_NOT_ALLOWED:
 303         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr, s_request);
 304         return EXIT_NORMAL;
 305     case METHOD_NOT_FOUND:
 306         mk_request_error(M_SERVER_NOT_IMPLEMENTED, cr, s_request);
 307         return EXIT_NORMAL;
 308     }
 309
 310     s_request->user_home = VAR_OFF;
 311
 312     /* Valid request URI? */
 313     if (s_request->uri_processed == NULL) {
 314         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request);
 315         return EXIT_NORMAL;
 316     }
 317     if (s_request->uri_processed[0] != '/') {
 318         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request);
 319         return EXIT_NORMAL;
 320     }
 321     if (s_request->uri_processed[0] != '/') {
 322         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request);
 323         return EXIT_NORMAL;
 324     }
 325
 326     /* HTTP/1.1 needs Host header */
 327     if (!s_request->host.data && s_request->protocol == HTTP_PROTOCOL_11) {
 328         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request);
 329         return EXIT_NORMAL;
 330     }
 331
 332     /* Method not allowed ? */
 333     if (s_request->method == METHOD_NOT_ALLOWED) {
 334         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr, s_request);
 335         return EXIT_NORMAL;
 336     }
 337
 338     /* Validating protocol version */
 339     if (s_request->protocol == HTTP_PROTOCOL_UNKNOWN) {
 340         mk_request_error(M_SERVER_HTTP_VERSION_UNSUP, cr, s_request);
 341         return EXIT_ABORT;
 342     }
 343
 344     if (s_request->host.data) {
 345         host = mk_config_host_find(s_request->host);
 346         if (host) {
 347             s_request->host_conf = host;
 348         }
 349         else {
 350             s_request->host_conf = config->hosts;
 351         }
 352     }
 353     else {
 354         s_request->host_conf = config->hosts;
 355     }
 356
 357     /* is requesting an user home directory ? */
 358     if (config->user_dir) {
 359         if (strncmp(s_request->uri_processed,
 360                     mk_user_home.data, mk_user_home.len) == 0) {
 361             if (mk_user_init(cr, s_request) != 0) {
 362                 return EXIT_NORMAL;
 363             }
 364         }
 365     }
 366
 367     /* Handling method requested */
 368     if (s_request->method == HTTP_METHOD_POST) {
 369         if ((status = mk_method_post(cr, s_request)) == -1) {
 370             return status;
 371         }
 372     }
 373
 374     /* Plugins Stage 20 */
 375     int ret;
 376     ret = mk_plugin_stage_run(MK_PLUGIN_STAGE_20, cr->socket, NULL,
 377                               cr, s_request);
 378
 379     if (ret == MK_PLUGIN_RET_CLOSE_CONX) {
 380 #ifdef TRACE
 381         MK_TRACE("STAGE 20 requested close conexion");
 382 #endif
 383         return EXIT_ABORT;
 384     }
 385
 386     /* Normal HTTP process */
 387     status = mk_http_init(cr, s_request);
 388
 389 #ifdef TRACE
 390     MK_TRACE("HTTP Init returning %i", status);
 391 #endif
 392
 393     return status;
 394 }
 395
 396 /* Return a struct with method, URI , protocol version
 397 and all static headers defined here sent in request */
 398 int mk_request_header_process(struct request *sr)
 399 {
 400     int uri_init = 0, uri_end = 0;
 401     char *query_init = 0;
 402     int prot_init = 0, prot_end = 0, pos_sep = 0;
 403     int fh_limit;
 404     char *port = 0;
 405     char *headers;
 406     mk_pointer host;
 407
 408     /* Method */
 409     sr->method_p = mk_http_method_check_str(sr->method);
 410
 411     /* Request URI */
 412     uri_init = (index(sr->body.data, ' ') - sr->body.data) + 1;
 413     fh_limit = (index(sr->body.data, '\n') - sr->body.data);
 414
 415     uri_end = mk_string_search_r(sr->body.data, ' ', fh_limit) - 1;
 416
 417     if (uri_end <= 0) {
 418 #ifdef TRACE
 419         MK_TRACE("Error, first header bad formed");
 420 #endif
 421         return -1;
 422     }
 423
 424     prot_init = uri_end + 2;
 425
 426     if (uri_end < uri_init) {
 427         return -1;
 428     }
 429
 430     /* Query String */
 431     query_init = index(sr->body.data + uri_init, '?');
 432     if (query_init) {
 433         int init, end;
 434
 435         init = (int) (query_init - (sr->body.data + uri_init)) + uri_init;
 436         if (init <= uri_end) {
 437             end = uri_end;
 438             uri_end = init - 1;
 439
 440             sr->query_string = mk_pointer_create(sr->body.data,
 441                                                  init + 1, end + 1);
 442         }
 443     }
 444
 445     /* Request URI Part 2 */
 446     sr->uri = mk_pointer_create(sr->body.data, uri_init, uri_end + 1);
 447
 448     if (sr->uri.len < 1) {
 449         return -1;
 450     }
 451
 452     /* HTTP Version */
 453     prot_end = fh_limit - 1;
 454     if (prot_init == prot_end) {
 455         return  -1;
 456     }
 457
 458     if (prot_end != prot_init && prot_end > 0) {
 459         sr->protocol = mk_http_protocol_check(sr->body.data + prot_init,
 460                                               prot_end - prot_init);
 461         sr->protocol_p = mk_http_protocol_check_str(sr->protocol);
 462     }
 463
 464     headers = sr->body.data + prot_end + mk_crlf.len;
 465
 466     /* URI processed */
 467     sr->uri_processed = mk_utils_hexuri_to_ascii(sr->uri);
 468
 469     if (!sr->uri_processed) {
 470         sr->uri_processed = mk_pointer_to_buf(sr->uri);
 471         sr->uri_twin = VAR_ON;
 472     }
 473
 474     /* Creating table of content (index) for request headers */
 475     int toc_len = MK_KNOWN_HEADERS;
 476     int headers_len = sr->body.len - (prot_end + mk_crlf.len);
 477
 478     struct header_toc *toc = mk_request_header_toc_create(toc_len);
 479     mk_request_header_toc_parse(toc, toc_len, headers, headers_len);
 480
 481     /* Host */
 482     host = mk_request_header_find(toc, toc_len, headers, mk_rh_host);
 483
 484     if (host.data) {
 485         if ((pos_sep = mk_string_char_search(host.data, ':', host.len)) >= 0) {
 486             sr->host.data = host.data;
 487             sr->host.len = pos_sep;
 488
 489             port = mk_string_copy_substr(host.data, pos_sep + 1, host.len);
 490             sr->port = atoi(port);
 491             mk_mem_free(port);
 492         }
 493         else {
 494             sr->host = host;    /* maybe null */
 495             sr->port = config->standard_port;
 496         }
 497     }
 498     else {
 499         sr->host.data = NULL;
 500     }
 501
 502     /* Looking for headers */
 503     sr->accept = mk_request_header_find(toc, toc_len, headers, mk_rh_accept);
 504     sr->accept_charset = mk_request_header_find(toc, toc_len, headers,
 505                                                 mk_rh_accept_charset);
 506     sr->accept_encoding = mk_request_header_find(toc, toc_len, headers,
 507                                                  mk_rh_accept_encoding);
 508
 509
 510     sr->accept_language = mk_request_header_find(toc, toc_len, headers,
 511                                                  mk_rh_accept_language);
 512     sr->cookies = mk_request_header_find(toc, toc_len, headers, mk_rh_cookie);
 513     sr->connection = mk_request_header_find(toc, toc_len, headers,
 514                                             mk_rh_connection);
 515     sr->referer = mk_request_header_find(toc, toc_len, headers,
 516                                          mk_rh_referer);
 517     sr->user_agent = mk_request_header_find(toc, toc_len, headers,
 518                                             mk_rh_user_agent);
 519     sr->range = mk_request_header_find(toc, toc_len, headers, mk_rh_range);
 520     sr->if_modified_since = mk_request_header_find(toc, toc_len, headers,
 521                                                    mk_rh_if_modified_since);
 522
 523     /* Default Keepalive is off */
 524     if (sr->protocol == HTTP_PROTOCOL_10) {
 525         sr->keep_alive = VAR_OFF;
 526         sr->close_now = VAR_ON;
 527     }
 528     else if(sr->protocol == HTTP_PROTOCOL_11) {
 529         sr->keep_alive = VAR_ON;
 530         sr->close_now = VAR_OFF;
 531     }
 532
 533     if (sr->connection.data) {
 534         if (mk_string_casestr(sr->connection.data, "Keep-Alive")) {
 535             sr->keep_alive = VAR_ON;
 536             sr->close_now = VAR_OFF;
 537         }
 538         else if(mk_string_casestr(sr->connection.data, "Close")) {
 539             sr->keep_alive = VAR_OFF;
 540             sr->close_now = VAR_ON;
 541         }
 542         else {
 543             /* Set as a non-valid connection header value */
 544             sr->connection.len = 0;
 545         }
 546     }
 547
 548     return 0;
 549 }
 550
 551 /* Return value of some variable sent in request */
 552 mk_pointer mk_request_header_find(struct header_toc * toc, int toc_len,
 553                                   char *request_body, mk_pointer header)
 554 {
 555     int i;
 556     mk_pointer var;
 557
 558     var.data = NULL;
 559     var.len = 0;
 560
 561     if (toc) {
 562         for (i = 0; i < toc_len; i++) {
 563             /* status = 1 means that the toc entry was already
 564              * checked by monkey
 565              */
 566             if (toc[i].status == 1) {
 567                 continue;
 568             }
 569
 570             if (!toc[i].init)
 571                 break;
 572
 573             if (strncasecmp(toc[i].init, header.data, header.len) == 0) {
 574                 var.data = toc[i].init + header.len + 1;
 575                 var.len = toc[i].end - var.data;
 576                 toc[i].status = 1;
 577                 return var;
 578             }
 579         }
 580     }
 581
 582     return var;
 583 }
 584
 585 /* Look for some  index.xxx in pathfile */
 586 mk_pointer mk_request_index(char *pathfile)
 587 {
 588     unsigned long len;
 589     char *file_aux = 0;
 590     mk_pointer f;
 591     struct mk_string_line *aux_index;
 592
 593     mk_pointer_reset(&f);
 594
 595     aux_index = config->index_files;
 596
 597     while (aux_index) {
 598         mk_string_build(&file_aux, &len, "%s%s",
 599                         pathfile, aux_index->val);
 600
 601         if (access(file_aux, F_OK) == 0) {
 602             f.data = file_aux;
 603             f.len = len;
 604             return f;
 605         }
 606         mk_mem_free(file_aux);
 607         aux_index = aux_index->next;
 608     }
 609
 610     return f;
 611 }
 612
 613 /* Send error responses */
 614 void mk_request_error(int http_status, struct client_request *cr,
 615                       struct request *sr) {
 616     char *aux_message = 0;
 617     mk_pointer message, *page = 0;
 618     long n;
 619
 620     switch (http_status) {
 621     case M_CLIENT_BAD_REQUEST:
 622         page = mk_request_set_default_page("Bad Request",
 623                                            sr->uri,
 624                                            sr->host_conf->host_signature);
 625         break;
 626
 627     case M_CLIENT_FORBIDDEN:
 628         page = mk_request_set_default_page("Forbidden",
 629                                            sr->uri,
 630                                            sr->host_conf->host_signature);
 631         break;
 632
 633     case M_CLIENT_NOT_FOUND:
 634         mk_string_build(&message.data, &message.len,
 635                         "The requested URL was not found on this server.");
 636         page = mk_request_set_default_page("Not Found",
 637                                            message,
 638                                            sr->host_conf->host_signature);
 639         mk_pointer_free(&message);
 640         break;
 641
 642     case M_CLIENT_REQUEST_ENTITY_TOO_LARGE:
 643         mk_string_build(&message.data, &message.len,
 644                         "The request entity is too large.");
 645         page = mk_request_set_default_page("Entity too large",
 646                                            message,
 647                                            sr->host_conf->host_signature);
 648         mk_pointer_free(&message);
 649         break;
 650
 651     case M_CLIENT_METHOD_NOT_ALLOWED:
 652         page = mk_request_set_default_page("Method Not Allowed",
 653                                            sr->uri,
 654                                            sr->host_conf->host_signature);
 655         break;
 656
 657     case M_CLIENT_REQUEST_TIMEOUT:
 658     case M_CLIENT_LENGTH_REQUIRED:
 659         break;
 660
 661     case M_SERVER_NOT_IMPLEMENTED:
 662         page = mk_request_set_default_page("Method Not Implemented",
 663                                            sr->uri,
 664                                            sr->host_conf->host_signature);
 665         break;
 666
 667     case M_SERVER_INTERNAL_ERROR:
 668         mk_string_build(&message.data, &message.len,
 669                         "Problems found running %s ", sr->uri);
 670         page = mk_request_set_default_page("Internal Server Error",
 671                                            message,
 672                                            sr->host_conf->host_signature);
 673         mk_pointer_free(&message);
 674         break;
 675
 676     case M_SERVER_HTTP_VERSION_UNSUP:
 677         mk_pointer_reset(&message);
 678         page = mk_request_set_default_page("HTTP Version Not Supported",
 679                                            message,
 680                                            sr->host_conf->host_signature);
 681         break;
 682     }
 683
 684     mk_header_set_http_status(sr, http_status);
 685     if (page) {
 686         sr->headers->content_length = page->len;
 687     }
 688
 689     sr->headers->location = NULL;
 690     sr->headers->cgi = SH_NOCGI;
 691     sr->headers->pconnections_left = 0;
 692     sr->headers->last_modified = -1;
 693
 694     if (aux_message)
 695         mk_mem_free(aux_message);
 696
 697     if (!page) {
 698         mk_pointer_reset(&sr->headers->content_type);
 699     }
 700     else {
 701         mk_pointer_set(&sr->headers->content_type, "text/html\r\n");
 702     }
 703
 704     mk_header_send(cr->socket, cr, sr);
 705
 706     if (page && sr->method != HTTP_METHOD_HEAD) {
 707         n = mk_socket_send(cr->socket, page->data, page->len);
 708         mk_pointer_free(page);
 709         mk_mem_free(page);
 710     }
 711
 712     /* Turn off TCP_CORK */
 713     mk_socket_set_cork_flag(cr->socket, TCP_CORK_OFF);
 714 }
 715
 716 /* Build error page */
 717 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 718                                         char *signature)
 719 {
 720     char *temp;
 721     mk_pointer *p;
 722
 723     p = mk_mem_malloc(sizeof(mk_pointer));
 724
 725     temp = mk_pointer_to_buf(message);
 726     mk_string_build(&p->data, &p->len,
 727                     MK_REQUEST_DEFAULT_PAGE, title, temp, signature);
 728     mk_mem_free(temp);
 729
 730     return p;
 731 }
 732
 733 /* Create a memory allocation in order to handle the request data */
 734 struct request *mk_request_alloc()
 735 {
 736     struct request *request = 0;
 737
 738     request = mk_mem_malloc(sizeof(struct request));
 739     request->status = VAR_OFF;  /* Request not processed yet */
 740     request->close_now = VAR_OFF;
 741
 742     mk_pointer_reset(&request->body);
 743     request->status = VAR_ON;
 744     request->method = METHOD_NOT_FOUND;
 745
 746     mk_pointer_reset(&request->uri);
 747     request->uri_processed = NULL;
 748     request->uri_twin = VAR_OFF;
 749
 750     request->accept.data = NULL;
 751     request->accept_language.data = NULL;
 752     request->accept_encoding.data = NULL;
 753     request->accept_charset.data = NULL;
 754     request->content_length = 0;
 755     request->content_type.data = NULL;
 756     request->connection.data = NULL;
 757     request->cookies.data = NULL;
 758     request->host.data = NULL;
 759     request->if_modified_since.data = NULL;
 760     request->last_modified_since.data = NULL;
 761     request->range.data = NULL;
 762     request->referer.data = NULL;
 763     request->resume.data = NULL;
 764     request->user_agent.data = NULL;
 765
 766     request->post_variables.data = NULL;
 767
 768     request->user_uri = NULL;
 769     mk_pointer_reset(&request->query_string);
 770
 771     request->file_info = NULL;
 772     request->virtual_user = NULL;
 773     request->script_filename = NULL;
 774     mk_pointer_reset(&request->real_path);
 775     request->host_conf = config->hosts;
 776
 777     request->loop = 0;
 778     request->bytes_to_send = -1;
 779     request->bytes_offset = 0;
 780     request->fd_file = -1;
 781
 782     /* Response Headers */
 783     request->headers = mk_header_create();
 784
 785     /* Plugin handler */
 786     request->handled_by = NULL;
 787
 788     return request;
 789 }
 790
 791 void mk_request_free_list(struct client_request *cr)
 792 {
 793     struct request *sr = 0, *before = 0;
 794
 795     /* sr = last node */
 796 #ifdef TRACE
 797     MK_TRACE("Free struct client_request [FD %i]", cr->socket);
 798 #endif
 799
 800     while (cr->request) {
 801         sr = before = cr->request;
 802
 803         while (sr->next) {
 804             sr = sr->next;
 805         }
 806
 807         if (sr != cr->request) {
 808             while (before->next != sr) {
 809                 before = before->next;
 810             }
 811             before->next = NULL;
 812         }
 813         else {
 814             cr->request = NULL;
 815         }
 816         mk_request_free(sr);
 817     }
 818     cr->request = NULL;
 819 }
 820
 821 void mk_request_free(struct request *sr)
 822 {
 823     if (sr->fd_file > 0) {
 824         close(sr->fd_file);
 825     }
 826     if (sr->headers) {
 827         mk_mem_free(sr->headers->location);
 828         mk_mem_free(sr->headers);
 829     }
 830
 831     mk_pointer_reset(&sr->body);
 832     mk_pointer_reset(&sr->uri);
 833
 834     if (sr->uri_twin == VAR_ON) {
 835         mk_mem_free(sr->uri_processed);
 836     }
 837
 838     mk_pointer_free(&sr->post_variables);
 839     mk_mem_free(sr->user_uri);
 840     mk_pointer_reset(&sr->query_string);
 841
 842     mk_mem_free(sr->file_info);
 843     mk_mem_free(sr->virtual_user);
 844     mk_mem_free(sr->script_filename);
 845     mk_pointer_free(&sr->real_path);
 846     mk_mem_free(sr);
 847 }
 848
 849 /* Create a client request struct and put it on the
 850  * main list
 851  */
 852 struct client_request *mk_request_client_create(int socket)
 853 {
 854     struct request_idx *request_index;
 855     struct client_request *cr;
 856     struct sched_connection *sc;
 857
 858     sc = mk_sched_get_connection(NULL, socket);
 859     cr = mk_mem_malloc(sizeof(struct client_request));
 860
 861     if (!sc) {
 862 #ifdef TRACE
 863         MK_TRACE("FAILED SOCKET: %i", socket);
 864 #endif
 865         exit(1);
 866     }
 867
 868     /* IPv4 Address */
 869     cr->ipv4 = &sc->ipv4;
 870
 871     cr->pipelined = FALSE;
 872     cr->counter_connections = 0;
 873     cr->socket = socket;
 874     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 875     cr->request = NULL;
 876
 877     /* creation time in unix time */
 878     cr->init_time = sc->arrive_time;
 879
 880     cr->next = NULL;
 881     cr->body = mk_mem_malloc(MK_REQUEST_CHUNK);
 882
 883     /* Buffer size based in Chunk bytes */
 884     cr->body_size = MK_REQUEST_CHUNK;
 885     /* Current data length */
 886     cr->body_length = 0;
 887
 888     cr->body_pos_end = -1;
 889     cr->first_method = HTTP_METHOD_UNKNOWN;
 890
 891     /* Add this request to the thread request list */
 892     request_index = mk_sched_get_request_index();
 893     if (!request_index->first) {
 894         request_index->first = request_index->last = cr;
 895     }
 896     else {
 897         request_index->last->next = cr;
 898         request_index->last = cr;
 899     }
 900
 901     /* Set again the global list */
 902     mk_sched_set_request_index(request_index);
 903
 904     return cr;
 905 }
 906
 907 struct client_request *mk_request_client_get(int socket)
 908 {
 909     struct request_idx *request_index;
 910     struct client_request *cr = NULL;
 911
 912     request_index = mk_sched_get_request_index();
 913     cr = request_index->first;
 914     while (cr != NULL) {
 915         if (cr->socket == socket) {
 916             break;
 917         }
 918         cr = cr->next;
 919     }
 920
 921     return cr;
 922 }
 923
 924 /*
 925  * From thread sched_list_node "list", remove the client_request
 926  * struct information
 927  */
 928 void mk_request_client_remove(int socket)
 929 {
 930     struct request_idx *request_index;
 931     struct client_request *cr, *aux;
 932
 933     request_index = mk_sched_get_request_index();
 934     cr = request_index->first;
 935
 936     while (cr) {
 937         if (cr->socket == socket) {
 938             if (cr == request_index->first) {
 939                 request_index->first = cr->next;
 940             }
 941             else {
 942                 aux = request_index->first;
 943                 while (aux->next != cr) {
 944                     aux = aux->next;
 945                 }
 946                 aux->next = cr->next;
 947                 if (!aux->next) {
 948                     request_index->last = aux;
 949                 }
 950             }
 951             break;
 952         }
 953         cr = cr->next;
 954     }
 955
 956     mk_mem_free(cr->body);
 957     mk_mem_free(cr);
 958
 959     /* Update thread index */
 960     mk_sched_set_request_index(request_index);
 961 }
 962
 963 struct header_toc *mk_request_header_toc_create(int len)
 964 {
 965     int i;
 966     struct header_toc *p;
 967
 968     p = (struct header_toc *) mk_cache_get(mk_cache_header_toc);
 969
 970     for (i = 0; i < len; i++) {
 971         p[i].init = NULL;
 972         p[i].end = NULL;
 973         p[i].status = 0;
 974     }
 975     return p;
 976 }
 977
 978 void mk_request_header_toc_parse(struct header_toc *toc, int toc_len, char *data, int len)
 979 {
 980     char *p, *l = 0;
 981     int i;
 982
 983     p = data;
 984     for (i = 0; i < toc_len && p && l < data + len; i++) {
 985         l = strstr(p, MK_CRLF);
 986         if (l) {
 987             toc[i].init = p;
 988             toc[i].end = l;
 989             p = l + mk_crlf.len;
 990         }
 991         else {
 992             break;
 993         }
 994     }
 995 }
 996
 997 void mk_request_ka_next(struct client_request *cr)
 998 {
 999     bzero(cr->body, sizeof(cr->body));
1000     cr->first_method = -1;
1001     cr->body_pos_end = -1;
1002     cr->body_length = 0;
1003     cr->counter_connections++;
1004
1005     /* Update data for scheduler */
1006     cr->init_time = log_current_utime;
1007     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
1008 }