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 <time.h>
  30 #include <netdb.h>
  31 #include <sys/wait.h>
  32 #include <signal.h>
  33 #include <errno.h>
  34
  35 #include <string.h>
  36
  37 #include <arpa/inet.h>
  38 #include <netinet/in.h>
  39 #include <sys/types.h>
  40
  41 #include "request.h"
  42 #include "monkey.h"
  43 #include "http.h"
  44 #include "http_status.h"
  45 #include "string.h"
  46 #include "str.h"
  47 #include "config.h"
  48 #include "scheduler.h"
  49 #include "epoll.h"
  50 #include "socket.h"
  51 #include "logfile.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
  62 struct request *mk_request_parse(struct client_request *cr)
  63 {
  64     int i, end;
  65     int blocks = 0;
  66     struct request *cr_buf = 0, *cr_search = 0;
  67
  68     for (i = 0; i <= cr->body_pos_end; i++) {
  69         /* Look for CRLFCRLF (\r\n\r\n), maybe some pipelining
  70          * request can be involved.
  71          */
  72         end = mk_string_search(cr->body + i, mk_endblock.data) + i;
  73
  74         if (end <  0) {
  75             return NULL;
  76         }
  77
  78         /* Allocating request block */
  79         cr_buf = mk_request_alloc();
  80
  81         /* We point the block with a mk_pointer */
  82         cr_buf->body.data = cr->body + i;
  83         cr_buf->body.len = end - i;
  84
  85         /* Method, previous catch in mk_http_pending_request */
  86         if (i == 0) {
  87             cr_buf->method = cr->first_method;
  88         }
  89         else {
  90             cr_buf->method = mk_http_method_get(cr_buf->body.data);
  91         }
  92         cr_buf->next = NULL;
  93
  94         /* Looking for POST data */
  95         if (cr_buf->method == HTTP_METHOD_POST) {
  96             cr_buf->post_variables = mk_method_post_get_vars(cr->body,
  97                                                              end + mk_endblock.len);
  98             if (cr_buf->post_variables.len >= 0) {
  99                 i += cr_buf->post_variables.len;
 100             }
 101         }
 102
 103         /* Increase index to the end of the current block */
 104         i = (end + mk_endblock.len) - 1;
 105
 106         /* Link block */
 107         if (!cr->request) {
 108             cr->request = cr_buf;
 109         }
 110         else {
 111             cr_search = cr->request;
 112             while (cr_search) {
 113                 if (cr_search->next == NULL) {
 114                     cr_search->next = cr_buf;
 115                     break;
 116                 }
 117                 else {
 118                     cr_search = cr_search->next;
 119                 }
 120             }
 121         }
 122
 123         /* Update counter */
 124         blocks++;
 125     }
 126
 127
 128     /* DEBUG BLOCKS
 129     cr_search = cr->request;
 130     while(cr_search){
 131         printf("\n");
 132         MK_TRACE("BLOCK INIT");
 133         mk_pointer_print(cr_search->body);
 134         MK_TRACE("BLOCK_END");
 135
 136         cr_search = cr_search->next;
 137     }
 138     */
 139
 140     /* Checking pipelining connection */
 141     cr_search = cr->request;
 142     if (blocks > 1) {
 143         while (cr_search) {
 144             /* Pipelining request must use GET or HEAD methods */
 145             if (cr_search->method != HTTP_METHOD_GET &&
 146                 cr_search->method != HTTP_METHOD_HEAD) {
 147                 return NULL;
 148             }
 149             cr_search = cr_search->next;
 150         }
 151
 152         cr->pipelined = TRUE;
 153     }
 154
 155     return cr->request;
 156 }
 157
 158 int mk_handler_read(int socket, struct client_request *cr)
 159 {
 160     int bytes;
 161
 162     bytes = mk_socket_read(socket, (void *)cr->body + cr->body_length, MAX_REQUEST_BODY - cr->body_length);
 163
 164     if (bytes < 0) {
 165         if (errno == EAGAIN) {
 166             return 1;
 167         }
 168         else {
 169             mk_request_client_remove(socket);
 170             return -1;
 171         }
 172     }
 173     if (bytes == 0) {
 174         mk_request_client_remove(socket);
 175         return -1;
 176     }
 177
 178     if (bytes > 0) {
 179         cr->body_length += bytes;
 180         cr->body[cr->body_length] = '\0';
 181     }
 182
 183     return bytes;
 184 }
 185
 186 int mk_handler_write(int socket, struct client_request *cr)
 187 {
 188     int bytes, final_status = 0;
 189     struct request *sr;
 190
 191     /*
 192      * Get node from schedule list node which contains
 193      * the information regarding to the current thread
 194      */
 195     if (!cr) {
 196         return -1;
 197     }
 198
 199     if (!cr->request) {
 200         if (!mk_request_parse(cr)) {
 201             return -1;
 202         }
 203     }
 204
 205     sr = cr->request;
 206
 207     while (sr) {
 208         /* Request not processed also no plugin has take some action */
 209         if (sr->bytes_to_send < 0 && !sr->handled_by) {
 210             final_status = mk_request_process(cr, sr);
 211         }
 212         /* Request with data to send by static file sender */
 213         else if (sr->bytes_to_send > 0 && !sr->handled_by) {
 214             final_status = bytes = mk_http_send_file(cr, sr);
 215         }
 216
 217         /*
 218          * If we got an error, we don't want to parse
 219          * and send information for another pipelined request
 220          */
 221         if (final_status > 0) {
 222             return final_status;
 223         }
 224         else if (final_status <= 0) {
 225             switch (final_status) {
 226             case EXIT_NORMAL:
 227             case EXIT_ERROR:
 228                 mk_logger_write_log(cr, sr->log, sr->host_conf);
 229                 if (sr->close_now == VAR_ON) {
 230                     return -1;
 231                 }
 232                 break;
 233             case EXIT_ABORT:
 234                 return -1;
 235                 break;
 236             }
 237         }
 238
 239         sr = sr->next;
 240     }
 241
 242     /* If we are here, is because all pipelined request were
 243      * processed successfully, let's return 0;
 244      */
 245     return 0;
 246 }
 247
 248 int mk_request_process(struct client_request *cr, struct request *s_request)
 249 {
 250     int status = 0;
 251     struct host *host;
 252
 253     status = mk_request_header_process(s_request);
 254
 255     if (status < 0) {
 256         return EXIT_ABORT;
 257     }
 258
 259     switch (s_request->method) {
 260     case METHOD_NOT_ALLOWED:
 261         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr,
 262                          s_request, 1, s_request->log);
 263         return EXIT_NORMAL;
 264     case METHOD_NOT_FOUND:
 265         mk_request_error(M_SERVER_NOT_IMPLEMENTED, cr,
 266                          s_request, 1, s_request->log);
 267         return EXIT_NORMAL;
 268     }
 269
 270     s_request->user_home = VAR_OFF;
 271     s_request->log->method = s_request->method;
 272
 273     /* Valid request URI? */
 274     if (s_request->uri_processed == NULL) {
 275         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1,
 276                          s_request->log);
 277         return EXIT_NORMAL;
 278     }
 279
 280     /* HTTP/1.1 needs Host header */
 281     if (!s_request->host.data && s_request->protocol == HTTP_PROTOCOL_11) {
 282         s_request->log->final_response = M_CLIENT_BAD_REQUEST;
 283         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1,
 284                          s_request->log);
 285         return EXIT_NORMAL;
 286     }
 287
 288     /* Method not allowed ? */
 289     if (s_request->method == METHOD_NOT_ALLOWED) {
 290         s_request->log->final_response = M_CLIENT_METHOD_NOT_ALLOWED;
 291         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr, s_request, 1,
 292                          s_request->log);
 293         return EXIT_NORMAL;
 294     }
 295
 296     /* Validating protocol version */
 297     if (s_request->protocol == HTTP_PROTOCOL_UNKNOWN) {
 298
 299         s_request->log->final_response = M_SERVER_HTTP_VERSION_UNSUP;
 300         mk_request_error(M_SERVER_HTTP_VERSION_UNSUP, cr, s_request, 1,
 301                          s_request->log);
 302         return EXIT_NORMAL;
 303     }
 304
 305     if (s_request->host.data) {
 306         host = mk_config_host_find(s_request->host);
 307         if (host) {
 308             s_request->host_conf = host;
 309         }
 310         else {
 311             s_request->host_conf = config->hosts;
 312         }
 313     }
 314     else {
 315         s_request->host_conf = config->hosts;
 316     }
 317     s_request->log->host_conf = s_request->host_conf;
 318
 319     /* is requesting an user home directory ? */
 320     if (config->user_dir) {
 321         if (strncmp(s_request->uri_processed,
 322                     mk_user_home.data, mk_user_home.len) == 0) {
 323             if (mk_user_init(cr, s_request) != 0) {
 324                 return EXIT_NORMAL;
 325             }
 326         }
 327     }
 328
 329     /* Handling method requested */
 330     if (s_request->method == HTTP_METHOD_POST) {
 331         if ((status = mk_method_post(cr, s_request)) == -1) {
 332             return status;
 333         }
 334     }
 335
 336     status = mk_http_init(cr, s_request);
 337
 338 #ifdef TRACE
 339     MK_TRACE("HTTP Init returning %i", status);
 340 #endif
 341
 342     return status;
 343 }
 344
 345 /* Return a struct with method, URI , protocol version
 346 and all static headers defined here sent in request */
 347 int mk_request_header_process(struct request *sr)
 348 {
 349     int uri_init = 0, uri_end = 0;
 350     char *query_init = 0;
 351     int prot_init = 0, prot_end = 0, pos_sep = 0;
 352     int fh_limit;
 353     char *port = 0;
 354     char *headers;
 355     mk_pointer host;
 356
 357     /* If verification fails it will return always
 358      * a bad request status
 359      */
 360     sr->log->final_response = M_CLIENT_BAD_REQUEST;
 361
 362     /* Method */
 363     sr->method_p = mk_http_method_check_str(sr->method);
 364
 365     /* Request URI */
 366     uri_init = (index(sr->body.data, ' ') - sr->body.data) + 1;
 367     fh_limit = (index(sr->body.data, '\n') - sr->body.data);
 368
 369     uri_end = mk_string_search_r(sr->body.data, ' ', fh_limit) - 1;
 370
 371     if (uri_end <= 0) {
 372         return -1;
 373     }
 374
 375     prot_init = uri_end + 2;
 376
 377     if (uri_end < uri_init) {
 378         return -1;
 379     }
 380
 381     /* Query String */
 382     query_init = index(sr->body.data + uri_init, '?');
 383     if (query_init) {
 384         int init, end;
 385
 386         init = (int) (query_init - (sr->body.data + uri_init)) + uri_init;
 387         if (init <= uri_end) {
 388             end = uri_end;
 389             uri_end = init - 1;
 390
 391             sr->query_string = mk_pointer_create(sr->body.data,
 392                                                  init + 1, end + 1);
 393         }
 394     }
 395
 396     /* Request URI Part 2 */
 397     sr->uri = sr->log->uri = mk_pointer_create(sr->body.data,
 398                                                uri_init, uri_end + 1);
 399
 400     if (sr->uri.len < 1) {
 401         return -1;
 402     }
 403
 404
 405     /* HTTP Version */
 406     prot_end = fh_limit - 1;
 407     if (prot_end != prot_init && prot_end > 0) {
 408         sr->protocol = sr->log->protocol =
 409             mk_http_protocol_check(sr->body.data + prot_init,
 410                                    prot_end - prot_init);
 411     }
 412
 413     headers = sr->body.data + prot_end + mk_crlf.len;
 414
 415     /* URI processed */
 416     sr->uri_processed = mk_utils_hexuri_to_ascii(sr->uri);
 417
 418     if (!sr->uri_processed) {
 419         sr->uri_processed = mk_pointer_to_buf(sr->uri);
 420         sr->uri_twin = VAR_ON;
 421     }
 422
 423     /* Creating table of content (index) for request headers */
 424     int toc_len = MK_KNOWN_HEADERS;
 425     int headers_len = sr->body.len - (prot_end + mk_crlf.len);
 426
 427     struct header_toc *toc = mk_request_header_toc_create(toc_len);
 428     mk_request_header_toc_parse(toc, toc_len, headers, headers_len);
 429
 430     /* Host */
 431     host = mk_request_header_find(toc, toc_len, headers, mk_rh_host);
 432
 433     if (host.data) {
 434         if ((pos_sep = mk_string_char_search(host.data, ':', host.len)) >= 0) {
 435             sr->host.data = host.data;
 436             sr->host.len = pos_sep;
 437
 438             port = mk_string_copy_substr(host.data, pos_sep + 1, host.len);
 439             sr->port = atoi(port);
 440             mk_mem_free(port);
 441         }
 442         else {
 443             sr->host = host;    /* maybe null */
 444             sr->port = config->standard_port;
 445         }
 446     }
 447     else {
 448         sr->host.data = NULL;
 449     }
 450
 451     /* Looking for headers */
 452     sr->accept = mk_request_header_find(toc, toc_len, headers, mk_rh_accept);
 453     sr->accept_charset = mk_request_header_find(toc, toc_len, headers,
 454                                                 mk_rh_accept_charset);
 455     sr->accept_encoding = mk_request_header_find(toc, toc_len, headers,
 456                                                  mk_rh_accept_encoding);
 457
 458
 459     sr->accept_language = mk_request_header_find(toc, toc_len, headers,
 460                                                  mk_rh_accept_language);
 461     sr->cookies = mk_request_header_find(toc, toc_len, headers, mk_rh_cookie);
 462     sr->connection = mk_request_header_find(toc, toc_len, headers,
 463                                             mk_rh_connection);
 464     sr->referer = mk_request_header_find(toc, toc_len, headers,
 465                                          mk_rh_referer);
 466     sr->user_agent = mk_request_header_find(toc, toc_len, headers,
 467                                             mk_rh_user_agent);
 468     sr->range = mk_request_header_find(toc, toc_len, headers, mk_rh_range);
 469     sr->if_modified_since = mk_request_header_find(toc, toc_len, headers,
 470                                                    mk_rh_if_modified_since);
 471
 472     /* Default Keepalive is off */
 473     if (sr->protocol == HTTP_PROTOCOL_10) {
 474         sr->keep_alive = VAR_OFF;
 475         sr->close_now = VAR_ON;
 476     }
 477     else if(sr->protocol == HTTP_PROTOCOL_11) {
 478         sr->keep_alive = VAR_ON;
 479         sr->close_now = VAR_OFF;
 480     }
 481
 482     if (sr->connection.data) {
 483         if (mk_string_casestr(sr->connection.data, "Keep-Alive")) {
 484             sr->keep_alive = VAR_ON;
 485             sr->close_now = VAR_OFF;
 486         }
 487         else if(mk_string_casestr(sr->connection.data, "Close")) {
 488             sr->keep_alive = VAR_OFF;
 489             sr->close_now = VAR_ON;
 490         }
 491         else {
 492             /* Set as a non-valid connection header value */
 493             sr->connection.len = 0;
 494         }
 495     }
 496     sr->log->final_response = M_HTTP_OK;
 497
 498     return 0;
 499 }
 500
 501 /* Return value of some variable sent in request */
 502 mk_pointer mk_request_header_find(struct header_toc * toc, int toc_len,
 503                                   char *request_body, mk_pointer header)
 504 {
 505     int i;
 506     mk_pointer var;
 507
 508     var.data = NULL;
 509     var.len = 0;
 510
 511     if (toc) {
 512         for (i = 0; i < toc_len; i++) {
 513             /* status = 1 means that the toc entry was already
 514              * checked by monkey
 515              */
 516             if (toc[i].status == 1) {
 517                 continue;
 518             }
 519
 520             if (!toc[i].init)
 521                 break;
 522
 523             if (strncasecmp(toc[i].init, header.data, header.len) == 0) {
 524                 var.data = toc[i].init + header.len + 1;
 525                 var.len = toc[i].end - var.data;
 526                 toc[i].status = 1;
 527                 return var;
 528             }
 529         }
 530     }
 531
 532     return var;
 533 }
 534
 535 /* FIXME: IMPROVE access */
 536 /* Look for some  index.xxx in pathfile */
 537 mk_pointer mk_request_index(char *pathfile)
 538 {
 539     unsigned long len;
 540     char *file_aux = 0;
 541     mk_pointer f;
 542     struct indexfile *aux_index;
 543
 544     mk_pointer_reset(&f);
 545
 546     aux_index = first_index;
 547
 548     while (aux_index) {
 549         mk_string_build(&file_aux, &len, "%s%s",
 550                         pathfile, aux_index->indexname);
 551
 552         if (access(file_aux, F_OK) == 0) {
 553             f.data = file_aux;
 554             f.len = len;
 555             return f;
 556         }
 557         mk_mem_free(file_aux);
 558         aux_index = aux_index->next;
 559     }
 560
 561     return f;
 562 }
 563
 564 /* Send error responses */
 565 void mk_request_error(int num_error, struct client_request *cr,
 566                       struct request *s_request, int debug,
 567                       struct log_info *s_log)
 568 {
 569     char *aux_message = 0;
 570     mk_pointer message, *page = 0;
 571     long n;
 572
 573     s_log->error_details.data = NULL;
 574
 575     switch (num_error) {
 576     case M_CLIENT_BAD_REQUEST:
 577         page = mk_request_set_default_page("Bad Request",
 578                                            s_request->uri,
 579                                            s_request->host_conf->
 580                                            host_signature);
 581         s_log->error_msg = request_error_msg_400;
 582         break;
 583
 584     case M_CLIENT_FORBIDDEN:
 585         page = mk_request_set_default_page("Forbidden",
 586                                            s_request->uri,
 587                                            s_request->host_conf->
 588                                            host_signature);
 589         s_log->error_msg = request_error_msg_403;
 590         s_log->error_details = s_request->uri;
 591         break;
 592
 593     case M_CLIENT_NOT_FOUND:
 594         mk_string_build(&message.data, &message.len,
 595                         "The requested URL was not found on this server.");
 596         page = mk_request_set_default_page("Not Found",
 597                                            message,
 598                                            s_request->host_conf->
 599                                            host_signature);
 600         s_log->error_msg = request_error_msg_404;
 601         s_log->error_details = s_request->uri;
 602
 603         mk_pointer_free(&message);
 604         break;
 605
 606     case M_CLIENT_METHOD_NOT_ALLOWED:
 607         page = mk_request_set_default_page("Method Not Allowed",
 608                                            s_request->uri,
 609                                            s_request->host_conf->
 610                                            host_signature);
 611
 612         s_log->final_response = M_CLIENT_METHOD_NOT_ALLOWED;
 613         s_log->error_msg = request_error_msg_405;
 614         s_log->error_details = s_request->method_p;
 615         break;
 616
 617     case M_CLIENT_REQUEST_TIMEOUT:
 618         s_log->status = S_LOG_OFF;
 619         s_log->error_msg = request_error_msg_408;
 620         break;
 621
 622     case M_CLIENT_LENGTH_REQUIRED:
 623         s_log->error_msg = request_error_msg_411;
 624         break;
 625
 626     case M_SERVER_NOT_IMPLEMENTED:
 627         page = mk_request_set_default_page("Method Not Implemented",
 628                                            s_request->uri,
 629                                            s_request->host_conf->
 630                                            host_signature);
 631         s_log->final_response = M_SERVER_NOT_IMPLEMENTED;
 632         s_log->error_msg = request_error_msg_501;
 633         s_log->error_details = s_request->method_p;
 634         break;
 635
 636     case M_SERVER_INTERNAL_ERROR:
 637         mk_string_build(&message.data, &message.len,
 638                         "Problems found running %s ", s_request->uri);
 639         page = mk_request_set_default_page("Internal Server Error",
 640                                            message,
 641                                            s_request->host_conf->
 642                                            host_signature);
 643         s_log->error_msg = request_error_msg_500;
 644
 645         mk_pointer_free(&message);
 646         break;
 647
 648     case M_SERVER_HTTP_VERSION_UNSUP:
 649         mk_pointer_reset(&message);
 650         page = mk_request_set_default_page("HTTP Version Not Supported",
 651                                            message,
 652                                            s_request->host_conf->
 653                                            host_signature);
 654         s_log->error_msg = request_error_msg_505;
 655         break;
 656     }
 657
 658     s_log->final_response = num_error;
 659
 660     s_request->headers->status = num_error;
 661     if (page) {
 662         s_request->headers->content_length = page->len;
 663         s_request->headers->content_length_p = mk_utils_int2mkp(page->len);
 664     }
 665
 666     s_request->headers->location = NULL;
 667     s_request->headers->cgi = SH_NOCGI;
 668     s_request->headers->pconnections_left = 0;
 669     mk_pointer_reset(&s_request->headers->last_modified);
 670
 671     if (aux_message)
 672         mk_mem_free(aux_message);
 673
 674     if (!page) {
 675         mk_pointer_reset(&s_request->headers->content_type);
 676     }
 677     else {
 678         mk_pointer_set(&s_request->headers->content_type, "text/html\r\n");
 679     }
 680
 681     mk_header_send(cr->socket, cr, s_request, s_log);
 682
 683     if (debug == 1) {
 684         n = write(cr->socket, page->data, page->len);
 685         mk_pointer_free(page);
 686         mk_mem_free(page);
 687     }
 688 }
 689
 690 /* Build error page */
 691 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 692                                         char *signature)
 693 {
 694     char *temp;
 695     mk_pointer *p;
 696
 697     p = mk_mem_malloc(sizeof(mk_pointer));
 698
 699     temp = mk_pointer_to_buf(message);
 700     mk_string_build(&p->data, &p->len,
 701                     MK_REQUEST_DEFAULT_PAGE, title, temp, signature);
 702     mk_mem_free(temp);
 703
 704     return p;
 705 }
 706
 707 /* Create a memory allocation in order to handle the request data */
 708 struct request *mk_request_alloc()
 709 {
 710     struct request *request = 0;
 711
 712     request = mk_mem_malloc(sizeof(struct request));
 713     request->log = mk_mem_malloc(sizeof(struct log_info));
 714
 715     request->status = VAR_OFF;  /* Request not processed yet */
 716     request->make_log = VAR_ON; /* build log file of this request ? */
 717     request->close_now = VAR_OFF;
 718
 719     mk_pointer_reset(&request->body);
 720
 721     request->log->final_response = M_HTTP_OK;
 722     request->log->status = S_LOG_ON;
 723     mk_pointer_reset(&request->log->size_p);
 724     mk_pointer_reset(&request->log->error_msg);
 725
 726     request->status = VAR_ON;
 727     request->method = METHOD_NOT_FOUND;
 728
 729     mk_pointer_reset(&request->uri);
 730     request->uri_processed = NULL;
 731     request->uri_twin = VAR_OFF;
 732
 733     request->accept.data = NULL;
 734     request->accept_language.data = NULL;
 735     request->accept_encoding.data = NULL;
 736     request->accept_charset.data = NULL;
 737     request->content_length = 0;
 738     request->content_type.data = NULL;
 739     request->connection.data = NULL;
 740     request->cookies.data = NULL;
 741     request->host.data = NULL;
 742     request->if_modified_since.data = NULL;
 743     request->last_modified_since.data = NULL;
 744     request->range.data = NULL;
 745     request->referer.data = NULL;
 746     request->resume.data = NULL;
 747     request->user_agent.data = NULL;
 748
 749     request->post_variables.data = NULL;
 750
 751     request->user_uri = NULL;
 752     mk_pointer_reset(&request->query_string);
 753
 754     request->file_info = NULL;
 755     request->virtual_user = NULL;
 756     request->script_filename = NULL;
 757     mk_pointer_reset(&request->real_path);
 758     request->host_conf = config->hosts;
 759
 760     request->loop = 0;
 761     request->bytes_to_send = -1;
 762     request->bytes_offset = 0;
 763     request->fd_file = -1;
 764
 765     /* Response Headers */
 766     request->headers = mk_header_create();
 767
 768     request->handled_by = NULL;
 769     return request;
 770 }
 771
 772 void mk_request_free_list(struct client_request *cr)
 773 {
 774     struct request *sr = 0, *before = 0;
 775
 776     /* sr = last node */
 777
 778     while (cr->request) {
 779         sr = before = cr->request;
 780
 781         while (sr->next) {
 782             sr = sr->next;
 783         }
 784
 785         if (sr != cr->request) {
 786             while (before->next != sr) {
 787                 before = before->next;
 788             }
 789             before->next = NULL;
 790         }
 791         else {
 792             cr->request = NULL;
 793         }
 794         mk_request_free(sr);
 795     }
 796     cr->request = NULL;
 797 }
 798
 799 void mk_request_free(struct request *sr)
 800 {
 801     /* I hate it, but I don't know another light way :( */
 802     if (sr->fd_file > 0) {
 803         close(sr->fd_file);
 804     }
 805     if (sr->headers) {
 806         mk_mem_free(sr->headers->location);
 807         mk_pointer_free(&sr->headers->content_length_p);
 808         mk_pointer_free(&sr->headers->last_modified);
 809         mk_mem_free(sr->headers);
 810     }
 811
 812
 813     if (sr->log) {
 814         /*
 815          * We do not free log->size_p, as if it was
 816          * used due to an error, it points to the
 817          * same memory block than header->content_length_p
 818          * points to, we just reset it.
 819          */
 820         mk_pointer_reset(&sr->log->size_p);
 821
 822         /*
 823          * sr->log->error_msg just point to
 824          * local data on request.c, no
 825          * dynamic allocation is made
 826          */
 827
 828         mk_mem_free(sr->log);
 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     /* IPv4 Address */
 862     cr->ipv4 = &sc->ipv4;
 863
 864     cr->pipelined = FALSE;
 865     cr->counter_connections = 0;
 866     cr->socket = socket;
 867     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 868     cr->request = NULL;
 869
 870     /* creation time in unix time */
 871     cr->init_time = sc->arrive_time;
 872
 873     cr->next = NULL;
 874     cr->body = mk_mem_malloc(MAX_REQUEST_BODY);
 875     cr->body_length = 0;
 876     cr->body_pos_end = -1;
 877     cr->first_method = HTTP_METHOD_UNKNOWN;
 878
 879     request_index = mk_sched_get_request_index();
 880     if (!request_index->first) {
 881         request_index->first = request_index->last = cr;
 882     }
 883     else {
 884         request_index->last->next = cr;
 885         request_index->last = cr;
 886     }
 887     mk_sched_set_request_index(request_index);
 888
 889     return cr;
 890 }
 891
 892 struct client_request *mk_request_client_get(int socket)
 893 {
 894     struct request_idx *request_index;
 895     struct client_request *cr = NULL;
 896
 897     request_index = mk_sched_get_request_index();
 898     cr = request_index->first;
 899     while (cr != NULL) {
 900         if (cr->socket == socket) {
 901             break;
 902         }
 903         cr = cr->next;
 904     }
 905
 906     return cr;
 907 }
 908
 909 /*
 910  * From thread sched_list_node "list", remove the client_request
 911  * struct information
 912  */
 913 struct client_request *mk_request_client_remove(int socket)
 914 {
 915     struct request_idx *request_index;
 916     struct client_request *cr, *aux;
 917
 918     request_index = mk_sched_get_request_index();
 919     cr = request_index->first;
 920
 921     while (cr) {
 922         if (cr->socket == socket) {
 923             if (cr == request_index->first) {
 924                 request_index->first = cr->next;
 925             }
 926             else {
 927                 aux = request_index->first;
 928                 while (aux->next != cr) {
 929                     aux = aux->next;
 930                 }
 931                 aux->next = cr->next;
 932                 if (!aux->next) {
 933                     request_index->last = aux;
 934                 }
 935             }
 936             break;
 937         }
 938         cr = cr->next;
 939     }
 940
 941     mk_mem_free(cr->body);
 942     mk_mem_free(cr);
 943
 944     return NULL;
 945 }
 946
 947 struct header_toc *mk_request_header_toc_create(int len)
 948 {
 949     int i;
 950     struct header_toc *p;
 951
 952     p = (struct header_toc *) pthread_getspecific(mk_cache_header_toc);
 953
 954     for (i = 0; i < len; i++) {
 955         p[i].init = NULL;
 956         p[i].end = NULL;
 957         p[i].status = 0;
 958     }
 959     return p;
 960 }
 961
 962 void mk_request_header_toc_parse(struct header_toc *toc, int toc_len, char *data, int len)
 963 {
 964     char *p, *l = 0;
 965     int i;
 966
 967     p = data;
 968     for (i = 0; i < toc_len && p && l < data + len; i++) {
 969         l = strstr(p, MK_CRLF);
 970         if (l) {
 971             toc[i].init = p;
 972             toc[i].end = l;
 973             p = l + mk_crlf.len;
 974         }
 975         else {
 976             break;
 977         }
 978     }
 979 }
 980
 981 void mk_request_ka_next(struct client_request *cr)
 982 {
 983     bzero(cr->body, sizeof(cr->body));
 984     cr->first_method = -1;
 985     cr->body_pos_end = -1;
 986     cr->body_length = 0;
 987     cr->counter_connections++;
 988
 989     /* Update data for scheduler */
 990     cr->init_time = log_current_utime;
 991     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 992 }