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 = read(socket, cr->body + cr->body_length,
 163                  MAX_REQUEST_BODY - cr->body_length);
 164
 165     if (bytes < 0) {
 166         if (errno == EAGAIN) {
 167             return 1;
 168         }
 169         else {
 170             mk_request_client_remove(socket);
 171             return -1;
 172         }
 173     }
 174     if (bytes == 0) {
 175         mk_request_client_remove(socket);
 176         return -1;
 177     }
 178
 179     if (bytes > 0) {
 180         cr->body_length += bytes;
 181         cr->body[cr->body_length] = '\0';
 182     }
 183
 184     return bytes;
 185 }
 186
 187 int mk_handler_write(int socket, struct client_request *cr)
 188 {
 189     int bytes, final_status = 0;
 190     struct request *sr;
 191
 192     /*
 193      * Get node from schedule list node which contains
 194      * the information regarding to the current thread
 195      */
 196     if (!cr) {
 197         return -1;
 198     }
 199
 200     if (!cr->request) {
 201         if (!mk_request_parse(cr)) {
 202             return -1;
 203         }
 204     }
 205
 206     sr = cr->request;
 207
 208     while (sr) {
 209         /* Request not processed also no plugin has take some action */
 210         if (sr->bytes_to_send < 0 && !sr->handled_by) {
 211             final_status = mk_request_process(cr, sr);
 212         }
 213         /* Request with data to send by static file sender */
 214         else if (sr->bytes_to_send > 0 && !sr->handled_by) {
 215             bytes = SendFile(socket, cr, sr);
 216             final_status = bytes;
 217         }
 218         else if (sr->handled_by){
 219             /* FIXME: Look for loops
 220              * sr->handled_by; */
 221         }
 222
 223         /*
 224          * If we got an error, we don't want to parse
 225          * and send information for another pipelined request
 226          */
 227         if (final_status > 0) {
 228             return final_status;
 229         }
 230         else if (final_status <= 0) {
 231             switch (final_status) {
 232             case EXIT_NORMAL:
 233                 mk_logger_write_log(cr, sr->log, sr->host_conf);
 234                 if (sr->close_now == VAR_ON) {
 235                     return -1;
 236                 }
 237                 break;
 238             case EXIT_ABORT:
 239                 return -1;
 240                 break;
 241             }
 242         }
 243
 244         sr = sr->next;
 245     }
 246
 247     /* If we are here, is because all pipelined request were
 248      * processed successfully, let's return 0;
 249      */
 250     return 0;
 251 }
 252
 253 int mk_request_process(struct client_request *cr, struct request *s_request)
 254 {
 255     int status = 0;
 256     struct host *host;
 257
 258     status = mk_request_header_process(s_request);
 259
 260     if (status < 0) {
 261         return EXIT_ABORT;
 262     }
 263
 264     switch (s_request->method) {
 265     case METHOD_NOT_ALLOWED:
 266         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr,
 267                          s_request, 1, s_request->log);
 268         return EXIT_NORMAL;
 269     case METHOD_NOT_FOUND:
 270         mk_request_error(M_SERVER_NOT_IMPLEMENTED, cr,
 271                          s_request, 1, s_request->log);
 272         return EXIT_NORMAL;
 273     }
 274
 275     s_request->user_home = VAR_OFF;
 276     s_request->log->method = s_request->method;
 277
 278     /* Valid request URI? */
 279     if (s_request->uri_processed == NULL) {
 280         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1,
 281                          s_request->log);
 282         return EXIT_NORMAL;
 283     }
 284
 285     /* HTTP/1.1 needs Host header */
 286     if (!s_request->host.data && s_request->protocol == HTTP_PROTOCOL_11) {
 287         s_request->log->final_response = M_CLIENT_BAD_REQUEST;
 288         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1,
 289                          s_request->log);
 290         return EXIT_NORMAL;
 291     }
 292
 293     /* Method not allowed ? */
 294     if (s_request->method == METHOD_NOT_ALLOWED) {
 295         s_request->log->final_response = M_CLIENT_METHOD_NOT_ALLOWED;
 296         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr, s_request, 1,
 297                          s_request->log);
 298         return EXIT_NORMAL;
 299     }
 300
 301     /* Validating protocol version */
 302     if (s_request->protocol == HTTP_PROTOCOL_UNKNOWN) {
 303
 304         s_request->log->final_response = M_SERVER_HTTP_VERSION_UNSUP;
 305         mk_request_error(M_SERVER_HTTP_VERSION_UNSUP, cr, s_request, 1,
 306                          s_request->log);
 307         return EXIT_NORMAL;
 308     }
 309
 310     if (s_request->host.data) {
 311         host = mk_config_host_find(s_request->host);
 312         if (host) {
 313             s_request->host_conf = host;
 314         }
 315         else {
 316             s_request->host_conf = config->hosts;
 317         }
 318     }
 319     else {
 320         s_request->host_conf = config->hosts;
 321     }
 322     s_request->log->host_conf = s_request->host_conf;
 323
 324     /* is requesting an user home directory ? */
 325     if (config->user_dir) {
 326         if (strncmp(s_request->uri_processed,
 327                     mk_user_home.data, mk_user_home.len) == 0) {
 328             if (mk_user_init(cr, s_request) != 0) {
 329                 return EXIT_NORMAL;
 330             }
 331         }
 332     }
 333
 334     /* Handling method requested */
 335     if (s_request->method == HTTP_METHOD_POST) {
 336         if ((status = mk_method_post(cr, s_request)) == -1) {
 337             return status;
 338         }
 339     }
 340
 341     status = mk_http_init(cr, s_request);
 342
 343 #ifdef TRACE
 344     MK_TRACE("HTTP Init returning %i", status);
 345 #endif
 346
 347     return status;
 348 }
 349
 350 /* Return a struct with method, URI , protocol version
 351 and all static headers defined here sent in request */
 352 int mk_request_header_process(struct request *sr)
 353 {
 354     int uri_init = 0, uri_end = 0;
 355     char *query_init = 0;
 356     int prot_init = 0, prot_end = 0, pos_sep = 0;
 357     int fh_limit;
 358     char *port = 0;
 359     char *headers;
 360     mk_pointer host;
 361
 362     /* If verification fails it will return always
 363      * a bad request status
 364      */
 365     sr->log->final_response = M_CLIENT_BAD_REQUEST;
 366
 367     /* Method */
 368     sr->method_p = mk_http_method_check_str(sr->method);
 369
 370     /* Request URI */
 371     uri_init = (index(sr->body.data, ' ') - sr->body.data) + 1;
 372     fh_limit = (index(sr->body.data, '\n') - sr->body.data);
 373
 374     uri_end = mk_string_search_r(sr->body.data, ' ', fh_limit) - 1;
 375
 376     if (uri_end <= 0) {
 377         return -1;
 378     }
 379
 380     prot_init = uri_end + 2;
 381
 382     if (uri_end < uri_init) {
 383         return -1;
 384     }
 385
 386     /* Query String */
 387     query_init = index(sr->body.data + uri_init, '?');
 388     if (query_init) {
 389         int init, end;
 390
 391         init = (int) (query_init - (sr->body.data + uri_init)) + uri_init;
 392         if (init <= uri_end) {
 393             end = uri_end;
 394             uri_end = init - 1;
 395
 396             sr->query_string = mk_pointer_create(sr->body.data,
 397                                                  init + 1, end + 1);
 398         }
 399     }
 400
 401     /* Request URI Part 2 */
 402     sr->uri = sr->log->uri = mk_pointer_create(sr->body.data,
 403                                                uri_init, uri_end + 1);
 404
 405     if (sr->uri.len < 1) {
 406         return -1;
 407     }
 408
 409
 410     /* HTTP Version */
 411     prot_end = fh_limit - 1;
 412     if (prot_end != prot_init && prot_end > 0) {
 413         sr->protocol = sr->log->protocol =
 414             mk_http_protocol_check(sr->body.data + prot_init,
 415                                    prot_end - prot_init);
 416     }
 417
 418     headers = sr->body.data + prot_end + mk_crlf.len;
 419
 420     /* URI processed */
 421     sr->uri_processed = mk_utils_hexuri_to_ascii(sr->uri);
 422
 423     if (!sr->uri_processed) {
 424         sr->uri_processed = mk_pointer_to_buf(sr->uri);
 425         sr->uri_twin = VAR_ON;
 426     }
 427
 428     /* Creating table of content (index) for request headers */
 429     int toc_len = MK_KNOWN_HEADERS;
 430     int headers_len = sr->body.len - (prot_end + mk_crlf.len);
 431
 432     struct header_toc *toc = mk_request_header_toc_create(toc_len);
 433     mk_request_header_toc_parse(toc, toc_len, headers, headers_len);
 434
 435     /* Host */
 436     host = mk_request_header_find(toc, toc_len, headers, mk_rh_host);
 437
 438     if (host.data) {
 439         if ((pos_sep = mk_string_char_search(host.data, ':', host.len)) >= 0) {
 440             sr->host.data = host.data;
 441             sr->host.len = pos_sep;
 442
 443             port = mk_string_copy_substr(host.data, pos_sep + 1, host.len);
 444             sr->port = atoi(port);
 445             mk_mem_free(port);
 446         }
 447         else {
 448             sr->host = host;    /* maybe null */
 449             sr->port = config->standard_port;
 450         }
 451     }
 452     else {
 453         sr->host.data = NULL;
 454     }
 455
 456     /* Looking for headers */
 457     sr->accept = mk_request_header_find(toc, toc_len, headers, mk_rh_accept);
 458     sr->accept_charset = mk_request_header_find(toc, toc_len, headers,
 459                                                 mk_rh_accept_charset);
 460     sr->accept_encoding = mk_request_header_find(toc, toc_len, headers,
 461                                                  mk_rh_accept_encoding);
 462
 463
 464     sr->accept_language = mk_request_header_find(toc, toc_len, headers,
 465                                                  mk_rh_accept_language);
 466     sr->cookies = mk_request_header_find(toc, toc_len, headers, mk_rh_cookie);
 467     sr->connection = mk_request_header_find(toc, toc_len, headers,
 468                                             mk_rh_connection);
 469     sr->referer = mk_request_header_find(toc, toc_len, headers,
 470                                          mk_rh_referer);
 471     sr->user_agent = mk_request_header_find(toc, toc_len, headers,
 472                                             mk_rh_user_agent);
 473     sr->range = mk_request_header_find(toc, toc_len, headers, mk_rh_range);
 474     sr->if_modified_since = mk_request_header_find(toc, toc_len, headers,
 475                                                    mk_rh_if_modified_since);
 476
 477     /* Default Keepalive is off */
 478     if (sr->protocol == HTTP_PROTOCOL_10) {
 479         sr->keep_alive = VAR_OFF;
 480         sr->close_now = VAR_ON;
 481     }
 482     else if(sr->protocol == HTTP_PROTOCOL_11) {
 483         sr->keep_alive = VAR_ON;
 484         sr->close_now = VAR_OFF;
 485     }
 486
 487     if (sr->connection.data) {
 488         if (mk_string_casestr(sr->connection.data, "Keep-Alive")) {
 489             sr->keep_alive = VAR_ON;
 490             sr->close_now = VAR_OFF;
 491         }
 492         else if(mk_string_casestr(sr->connection.data, "Close")) {
 493             sr->keep_alive = VAR_OFF;
 494             sr->close_now = VAR_ON;
 495         }
 496         else {
 497             /* Set as a non-valid connection header value */
 498             sr->connection.len = 0;
 499         }
 500     }
 501     sr->log->final_response = M_HTTP_OK;
 502
 503     return 0;
 504 }
 505
 506 /* Return value of some variable sent in request */
 507 mk_pointer mk_request_header_find(struct header_toc * toc, int toc_len,
 508                                   char *request_body, mk_pointer header)
 509 {
 510     int i;
 511     mk_pointer var;
 512
 513     var.data = NULL;
 514     var.len = 0;
 515
 516     /* new code */
 517     if (toc) {
 518         for (i = 0; i < toc_len; i++) {
 519             /* status = 1 means that the toc entry was already
 520              * checked by monkey
 521              */
 522             if (toc[i].status == 1) {
 523                 continue;
 524             }
 525
 526             if (!toc[i].init)
 527                 break;
 528
 529             if (strncasecmp(toc[i].init, header.data, header.len) == 0) {
 530                 var.data = toc[i].init + header.len + 1;
 531                 var.len = toc[i].end - var.data;
 532                 toc[i].status = 1;
 533                 return var;
 534             }
 535         }
 536     }
 537
 538     return var;
 539 }
 540
 541 /* FIXME: IMPROVE access */
 542 /* Look for some  index.xxx in pathfile */
 543 mk_pointer mk_request_index(char *pathfile)
 544 {
 545     unsigned long len;
 546     char *file_aux = 0;
 547     mk_pointer f;
 548     struct indexfile *aux_index;
 549
 550     mk_pointer_reset(&f);
 551
 552     aux_index = first_index;
 553
 554     while (aux_index) {
 555         m_build_buffer(&file_aux, &len, "%s%s",
 556                        pathfile, aux_index->indexname);
 557
 558         if (access(file_aux, F_OK) == 0) {
 559             f.data = file_aux;
 560             f.len = len;
 561             return f;
 562         }
 563         mk_mem_free(file_aux);
 564         aux_index = aux_index->next;
 565     }
 566
 567     return f;
 568 }
 569
 570 /* Send error responses */
 571 void mk_request_error(int num_error, struct client_request *cr,
 572                       struct request *s_request, int debug,
 573                       struct log_info *s_log)
 574 {
 575     char *aux_message = 0;
 576     mk_pointer message, *page = 0;
 577     long n;
 578
 579     s_log->error_details.data = NULL;
 580
 581     switch (num_error) {
 582     case M_CLIENT_BAD_REQUEST:
 583         page = mk_request_set_default_page("Bad Request",
 584                                            s_request->uri,
 585                                            s_request->host_conf->
 586                                            host_signature);
 587         s_log->error_msg = request_error_msg_400;
 588         break;
 589
 590     case M_CLIENT_FORBIDDEN:
 591         page = mk_request_set_default_page("Forbidden",
 592                                            s_request->uri,
 593                                            s_request->host_conf->
 594                                            host_signature);
 595         s_log->error_msg = request_error_msg_403;
 596         s_log->error_details = s_request->uri;
 597         break;
 598
 599     case M_CLIENT_NOT_FOUND:
 600         m_build_buffer(&message.data, &message.len,
 601                        "The requested URL was not found on this server.");
 602         page = mk_request_set_default_page("Not Found",
 603                                            message,
 604                                            s_request->host_conf->
 605                                            host_signature);
 606         s_log->error_msg = request_error_msg_404;
 607         s_log->error_details = s_request->uri;
 608
 609         mk_pointer_free(&message);
 610         break;
 611
 612     case M_CLIENT_METHOD_NOT_ALLOWED:
 613         page = mk_request_set_default_page("Method Not Allowed",
 614                                            s_request->uri,
 615                                            s_request->host_conf->
 616                                            host_signature);
 617
 618         s_log->final_response = M_CLIENT_METHOD_NOT_ALLOWED;
 619         s_log->error_msg = request_error_msg_405;
 620         s_log->error_details = s_request->method_p;
 621         break;
 622
 623     case M_CLIENT_REQUEST_TIMEOUT:
 624         s_log->status = S_LOG_OFF;
 625         s_log->error_msg = request_error_msg_408;
 626         break;
 627
 628     case M_CLIENT_LENGTH_REQUIRED:
 629         s_log->error_msg = request_error_msg_411;
 630         break;
 631
 632     case M_SERVER_NOT_IMPLEMENTED:
 633         page = mk_request_set_default_page("Method Not Implemented",
 634                                            s_request->uri,
 635                                            s_request->host_conf->
 636                                            host_signature);
 637         s_log->final_response = M_SERVER_NOT_IMPLEMENTED;
 638         s_log->error_msg = request_error_msg_501;
 639         s_log->error_details = s_request->method_p;
 640         break;
 641
 642     case M_SERVER_INTERNAL_ERROR:
 643         m_build_buffer(&message.data, &message.len,
 644                        "Problems found running %s ", s_request->uri);
 645         page = mk_request_set_default_page("Internal Server Error",
 646                                            message,
 647                                            s_request->host_conf->
 648                                            host_signature);
 649         s_log->error_msg = request_error_msg_500;
 650
 651         mk_pointer_free(&message);
 652         break;
 653
 654     case M_SERVER_HTTP_VERSION_UNSUP:
 655         mk_pointer_reset(&message);
 656         page = mk_request_set_default_page("HTTP Version Not Supported",
 657                                            message,
 658                                            s_request->host_conf->
 659                                            host_signature);
 660         s_log->error_msg = request_error_msg_505;
 661         break;
 662     }
 663
 664     s_log->final_response = num_error;
 665
 666     s_request->headers->status = num_error;
 667     if (page) {
 668         s_request->headers->content_length = page->len;
 669         s_request->headers->content_length_p = mk_utils_int2mkp(page->len);
 670     }
 671
 672     s_request->headers->location = NULL;
 673     s_request->headers->cgi = SH_NOCGI;
 674     s_request->headers->pconnections_left = 0;
 675     mk_pointer_reset(&s_request->headers->last_modified);
 676
 677     if (aux_message)
 678         mk_mem_free(aux_message);
 679
 680     if (!page) {
 681         mk_pointer_reset(&s_request->headers->content_type);
 682     }
 683     else {
 684         mk_pointer_set(&s_request->headers->content_type, "text/html\r\n");
 685     }
 686
 687     mk_header_send(cr->socket, cr, s_request, s_log);
 688
 689     if (debug == 1) {
 690         n = write(cr->socket, page->data, page->len);
 691         mk_pointer_free(page);
 692         mk_mem_free(page);
 693     }
 694 }
 695
 696 /* Build error page */
 697 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 698                                         char *signature)
 699 {
 700     char *temp;
 701     mk_pointer *p;
 702
 703     p = mk_mem_malloc(sizeof(mk_pointer));
 704
 705     temp = mk_pointer_to_buf(message);
 706     m_build_buffer(&p->data, &p->len,
 707                    MK_REQUEST_DEFAULT_PAGE, title, temp, signature);
 708     mk_mem_free(temp);
 709
 710     return p;
 711 }
 712
 713 /* Create a memory allocation in order to handle the request data */
 714 struct request *mk_request_alloc()
 715 {
 716     struct request *request = 0;
 717
 718     request = mk_mem_malloc(sizeof(struct request));
 719     request->log = mk_mem_malloc(sizeof(struct log_info));
 720
 721     request->status = VAR_OFF;  /* Request not processed yet */
 722     request->make_log = VAR_ON; /* build log file of this request ? */
 723     request->close_now = VAR_OFF;
 724
 725     mk_pointer_reset(&request->body);
 726
 727     request->log->final_response = M_HTTP_OK;
 728     request->log->status = S_LOG_ON;
 729     mk_pointer_reset(&request->log->size_p);
 730     mk_pointer_reset(&request->log->error_msg);
 731
 732     request->status = VAR_ON;
 733     request->method = METHOD_NOT_FOUND;
 734
 735     mk_pointer_reset(&request->uri);
 736     request->uri_processed = NULL;
 737     request->uri_twin = VAR_OFF;
 738
 739     request->accept.data = NULL;
 740     request->accept_language.data = NULL;
 741     request->accept_encoding.data = NULL;
 742     request->accept_charset.data = NULL;
 743     request->content_length = 0;
 744     request->content_type.data = NULL;
 745     request->connection.data = NULL;
 746     request->cookies.data = NULL;
 747     request->host.data = NULL;
 748     request->if_modified_since.data = NULL;
 749     request->last_modified_since.data = NULL;
 750     request->range.data = NULL;
 751     request->referer.data = NULL;
 752     request->resume.data = NULL;
 753     request->user_agent.data = NULL;
 754
 755     request->post_variables.data = NULL;
 756
 757     request->user_uri = NULL;
 758     mk_pointer_reset(&request->query_string);
 759
 760     request->file_info = NULL;
 761     request->virtual_user = NULL;
 762     request->script_filename = NULL;
 763     mk_pointer_reset(&request->real_path);
 764     request->host_conf = config->hosts;
 765
 766     request->loop = 0;
 767     request->bytes_to_send = -1;
 768     request->bytes_offset = 0;
 769     request->fd_file = -1;
 770
 771     /* Response Headers */
 772     request->headers = mk_header_create();
 773
 774     request->handled_by = NULL;
 775     return request;
 776 }
 777
 778 void mk_request_free_list(struct client_request *cr)
 779 {
 780     struct request *sr = 0, *before = 0;
 781
 782     /* sr = last node */
 783
 784     while (cr->request) {
 785         sr = before = cr->request;
 786
 787         while (sr->next) {
 788             sr = sr->next;
 789         }
 790
 791         if (sr != cr->request) {
 792             while (before->next != sr) {
 793                 before = before->next;
 794             }
 795             before->next = NULL;
 796         }
 797         else {
 798             cr->request = NULL;
 799         }
 800         mk_request_free(sr);
 801     }
 802     cr->request = NULL;
 803 }
 804
 805 void mk_request_free(struct request *sr)
 806 {
 807     /* I hate it, but I don't know another light way :( */
 808     if (sr->fd_file > 0) {
 809         close(sr->fd_file);
 810     }
 811     if (sr->headers) {
 812         mk_mem_free(sr->headers->location);
 813         mk_pointer_free(&sr->headers->content_length_p);
 814         mk_pointer_free(&sr->headers->last_modified);
 815         /*
 816            mk_mem_free(sr->headers->content_type);
 817            headers->content_type never it's allocated
 818            with malloc or something, so we don't need
 819            to free it, the value has been freed before
 820            in M_METHOD_Get_and_Head(struct request *sr)
 821
 822            this BUG was reported by gentoo team.. thanks guys XD
 823          */
 824
 825         mk_mem_free(sr->headers);
 826     }
 827
 828
 829     if (sr->log) {
 830         /*
 831          * We do not free log->size_p, as if it was
 832          * used due to an error, it points to the
 833          * same memory block than header->content_length_p
 834          * points to, we just reset it.
 835          */
 836         mk_pointer_reset(&sr->log->size_p);
 837
 838         /*
 839          * sr->log->error_msg just point to
 840          * local data on request.c, no
 841          * dynamic allocation is made
 842          */
 843
 844         mk_mem_free(sr->log);
 845     }
 846
 847     mk_pointer_reset(&sr->body);
 848     mk_pointer_reset(&sr->uri);
 849
 850     if (sr->uri_twin == VAR_ON) {
 851         mk_mem_free(sr->uri_processed);
 852     }
 853
 854     mk_pointer_free(&sr->post_variables);
 855     mk_mem_free(sr->user_uri);
 856     mk_pointer_reset(&sr->query_string);
 857
 858     mk_mem_free(sr->file_info);
 859     mk_mem_free(sr->virtual_user);
 860     mk_mem_free(sr->script_filename);
 861     mk_pointer_free(&sr->real_path);
 862     mk_mem_free(sr);
 863 }
 864
 865 /* Create a client request struct and put it on the
 866  * main list
 867  */
 868 struct client_request *mk_request_client_create(int socket)
 869 {
 870     struct request_idx *request_index;
 871     struct client_request *cr;
 872     struct sched_connection *sc;
 873
 874     sc = mk_sched_get_connection(NULL, socket);
 875     cr = mk_mem_malloc(sizeof(struct client_request));
 876
 877     /* IPv4 Address */
 878     cr->ipv4 = &sc->ipv4;
 879
 880     cr->pipelined = FALSE;
 881     cr->counter_connections = 0;
 882     cr->socket = socket;
 883     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 884     cr->request = NULL;
 885
 886     /* creation time in unix time */
 887     cr->init_time = sc->arrive_time;
 888
 889     cr->next = NULL;
 890     cr->body = mk_mem_malloc(MAX_REQUEST_BODY);
 891     cr->body_length = 0;
 892     cr->body_pos_end = -1;
 893     cr->first_method = HTTP_METHOD_UNKNOWN;
 894
 895     request_index = mk_sched_get_request_index();
 896     if (!request_index->first) {
 897         request_index->first = request_index->last = cr;
 898     }
 899     else {
 900         request_index->last->next = cr;
 901         request_index->last = cr;
 902     }
 903     mk_sched_set_request_index(request_index);
 904
 905     return cr;
 906 }
 907
 908 struct client_request *mk_request_client_get(int socket)
 909 {
 910     struct request_idx *request_index;
 911     struct client_request *cr = NULL;
 912
 913     request_index = mk_sched_get_request_index();
 914     cr = request_index->first;
 915     while (cr != NULL) {
 916         if (cr->socket == socket) {
 917             break;
 918         }
 919         cr = cr->next;
 920     }
 921
 922     return cr;
 923 }
 924
 925 /*
 926  * From thread sched_list_node "list", remove the client_request
 927  * struct information
 928  */
 929 struct client_request *mk_request_client_remove(int socket)
 930 {
 931     struct request_idx *request_index;
 932     struct client_request *cr, *aux;
 933
 934     request_index = mk_sched_get_request_index();
 935     cr = request_index->first;
 936
 937     while (cr) {
 938         if (cr->socket == socket) {
 939             if (cr == request_index->first) {
 940                 request_index->first = cr->next;
 941             }
 942             else {
 943                 aux = request_index->first;
 944                 while (aux->next != cr) {
 945                     aux = aux->next;
 946                 }
 947                 aux->next = cr->next;
 948                 if (!aux->next) {
 949                     request_index->last = aux;
 950                 }
 951             }
 952             break;
 953         }
 954         cr = cr->next;
 955     }
 956
 957     //mk_pointer_free(&cr->ip);
 958     mk_mem_free(cr->body);
 959     mk_mem_free(cr);
 960
 961     return NULL;
 962 }
 963
 964 struct header_toc *mk_request_header_toc_create(int len)
 965 {
 966     int i;
 967     struct header_toc *p;
 968
 969     p = (struct header_toc *) pthread_getspecific(mk_cache_header_toc);
 970
 971     for (i = 0; i < len; i++) {
 972         p[i].init = NULL;
 973         p[i].end = NULL;
 974         p[i].status = 0;
 975     }
 976     return p;
 977 }
 978
 979 void mk_request_header_toc_parse(struct header_toc *toc, int toc_len, char *data, int len)
 980 {
 981     char *p, *l = 0;
 982     int i;
 983
 984     p = data;
 985     for (i = 0; i < toc_len && p && l < data + len; i++) {
 986         l = strstr(p, MK_CRLF);
 987         if (l) {
 988             toc[i].init = p;
 989             toc[i].end = l;
 990             p = l + mk_crlf.len;
 991         }
 992         else {
 993             break;
 994         }
 995     }
 996 }
 997
 998 void mk_request_ka_next(struct client_request *cr)
 999 {
1000     bzero(cr->body, sizeof(cr->body));
1001     cr->first_method = -1;
1002     cr->body_pos_end = -1;
1003     cr->body_length = 0;
1004     cr->counter_connections++;
1005
1006     /* Update data for scheduler */
1007     cr->init_time = log_current_utime;
1008     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
1009 }