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 "utils.h"
  52 #include "header.h"
  53 #include "user.h"
  54 #include "method.h"
  55 #include "memory.h"
  56 #include "socket.h"
  57 #include "cache.h"
  58 #include "clock.h"
  59 #include "utils.h"
  60 #include "plugin.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     while (sr) {
 207         /* Request not processed also no plugin has take some action */
 208         if (sr->bytes_to_send < 0 && !sr->handled_by) {
 209             final_status = mk_request_process(cr, sr);
 210         }
 211         /* Request with data to send by static file sender */
 212         else if (sr->bytes_to_send > 0 && !sr->handled_by) {
 213             final_status = bytes = mk_http_send_file(cr, sr);
 214         }
 215
 216         /*
 217          * If we got an error, we don't want to parse
 218          * and send information for another pipelined request
 219          */
 220         if (final_status > 0) {
 221             return final_status;
 222         }
 223         else if (final_status <= 0) {
 224             /* STAGE_40, request has ended */
 225             mk_plugin_stage_run(MK_PLUGIN_STAGE_40, cr->socket,
 226                                 NULL, cr, sr);
 227             switch (final_status) {
 228             case EXIT_NORMAL:
 229             case EXIT_ERROR:
 230                 if (sr->close_now == VAR_ON) {
 231                     return -1;
 232                 }
 233                 break;
 234             case EXIT_ABORT:
 235                   return -1;
 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, s_request, 1);
 262         return EXIT_NORMAL;
 263     case METHOD_NOT_FOUND:
 264         mk_request_error(M_SERVER_NOT_IMPLEMENTED, cr, s_request, 1);
 265         return EXIT_NORMAL;
 266     }
 267
 268     s_request->user_home = VAR_OFF;
 269
 270     /* Valid request URI? */
 271     if (s_request->uri_processed == NULL) {
 272         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1);
 273         return EXIT_NORMAL;
 274     }
 275
 276     /* HTTP/1.1 needs Host header */
 277     if (!s_request->host.data && s_request->protocol == HTTP_PROTOCOL_11) {
 278         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1);
 279         return EXIT_NORMAL;
 280     }
 281
 282     /* Method not allowed ? */
 283     if (s_request->method == METHOD_NOT_ALLOWED) {
 284         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr, s_request, 1);
 285         return EXIT_NORMAL;
 286     }
 287
 288     /* Validating protocol version */
 289     if (s_request->protocol == HTTP_PROTOCOL_UNKNOWN) {
 290         mk_request_error(M_SERVER_HTTP_VERSION_UNSUP, cr, s_request, 1);
 291         return EXIT_NORMAL;
 292     }
 293
 294     if (s_request->host.data) {
 295         host = mk_config_host_find(s_request->host);
 296         if (host) {
 297             s_request->host_conf = host;
 298         }
 299         else {
 300             s_request->host_conf = config->hosts;
 301         }
 302     }
 303     else {
 304         s_request->host_conf = config->hosts;
 305     }
 306
 307     /* is requesting an user home directory ? */
 308     if (config->user_dir) {
 309         if (strncmp(s_request->uri_processed,
 310                     mk_user_home.data, mk_user_home.len) == 0) {
 311             if (mk_user_init(cr, s_request) != 0) {
 312                 return EXIT_NORMAL;
 313             }
 314         }
 315     }
 316
 317     /* Handling method requested */
 318     if (s_request->method == HTTP_METHOD_POST) {
 319         if ((status = mk_method_post(cr, s_request)) == -1) {
 320             return status;
 321         }
 322     }
 323
 324     /* Plugins Stage 20 */
 325     int ret;
 326     ret = mk_plugin_stage_run(MK_PLUGIN_STAGE_20, cr->socket, NULL,
 327                               cr, s_request);
 328
 329     if (ret == MK_PLUGIN_RET_CLOSE_CONX) {
 330 #ifdef TRACE
 331         MK_TRACE("STAGE 20 requested close conexion");
 332 #endif
 333         return EXIT_ABORT;
 334     }
 335
 336     /* Normal HTTP process */
 337     status = mk_http_init(cr, s_request);
 338
 339 #ifdef TRACE
 340     MK_TRACE("HTTP Init returning %i", status);
 341 #endif
 342
 343     return status;
 344 }
 345
 346 /* Return a struct with method, URI , protocol version
 347 and all static headers defined here sent in request */
 348 int mk_request_header_process(struct request *sr)
 349 {
 350     int uri_init = 0, uri_end = 0;
 351     char *query_init = 0;
 352     int prot_init = 0, prot_end = 0, pos_sep = 0;
 353     int fh_limit;
 354     char *port = 0;
 355     char *headers;
 356     mk_pointer host;
 357
 358     /* If verification fails it will return always
 359      * a bad request status
 360      * FIXME */
 361     //sr->log->final_response = M_CLIENT_BAD_REQUEST;
 362
 363     /* Method */
 364     sr->method_p = mk_http_method_check_str(sr->method);
 365
 366     /* Request URI */
 367     uri_init = (index(sr->body.data, ' ') - sr->body.data) + 1;
 368     fh_limit = (index(sr->body.data, '\n') - sr->body.data);
 369
 370     uri_end = mk_string_search_r(sr->body.data, ' ', fh_limit) - 1;
 371
 372     if (uri_end <= 0) {
 373         return -1;
 374     }
 375
 376     prot_init = uri_end + 2;
 377
 378     if (uri_end < uri_init) {
 379         return -1;
 380     }
 381
 382     /* Query String */
 383     query_init = index(sr->body.data + uri_init, '?');
 384     if (query_init) {
 385         int init, end;
 386
 387         init = (int) (query_init - (sr->body.data + uri_init)) + uri_init;
 388         if (init <= uri_end) {
 389             end = uri_end;
 390             uri_end = init - 1;
 391
 392             sr->query_string = mk_pointer_create(sr->body.data,
 393                                                  init + 1, end + 1);
 394         }
 395     }
 396
 397     /* Request URI Part 2 */
 398     sr->uri = mk_pointer_create(sr->body.data, 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 = mk_http_protocol_check(sr->body.data + prot_init,
 409                                               prot_end - prot_init);
 410     }
 411
 412     headers = sr->body.data + prot_end + mk_crlf.len;
 413
 414     /* URI processed */
 415     sr->uri_processed = mk_utils_hexuri_to_ascii(sr->uri);
 416
 417     if (!sr->uri_processed) {
 418         sr->uri_processed = mk_pointer_to_buf(sr->uri);
 419         sr->uri_twin = VAR_ON;
 420     }
 421
 422     /* Creating table of content (index) for request headers */
 423     int toc_len = MK_KNOWN_HEADERS;
 424     int headers_len = sr->body.len - (prot_end + mk_crlf.len);
 425
 426     struct header_toc *toc = mk_request_header_toc_create(toc_len);
 427     mk_request_header_toc_parse(toc, toc_len, headers, headers_len);
 428
 429     /* Host */
 430     host = mk_request_header_find(toc, toc_len, headers, mk_rh_host);
 431
 432     if (host.data) {
 433         if ((pos_sep = mk_string_char_search(host.data, ':', host.len)) >= 0) {
 434             sr->host.data = host.data;
 435             sr->host.len = pos_sep;
 436
 437             port = mk_string_copy_substr(host.data, pos_sep + 1, host.len);
 438             sr->port = atoi(port);
 439             mk_mem_free(port);
 440         }
 441         else {
 442             sr->host = host;    /* maybe null */
 443             sr->port = config->standard_port;
 444         }
 445     }
 446     else {
 447         sr->host.data = NULL;
 448     }
 449
 450     /* Looking for headers */
 451     sr->accept = mk_request_header_find(toc, toc_len, headers, mk_rh_accept);
 452     sr->accept_charset = mk_request_header_find(toc, toc_len, headers,
 453                                                 mk_rh_accept_charset);
 454     sr->accept_encoding = mk_request_header_find(toc, toc_len, headers,
 455                                                  mk_rh_accept_encoding);
 456
 457
 458     sr->accept_language = mk_request_header_find(toc, toc_len, headers,
 459                                                  mk_rh_accept_language);
 460     sr->cookies = mk_request_header_find(toc, toc_len, headers, mk_rh_cookie);
 461     sr->connection = mk_request_header_find(toc, toc_len, headers,
 462                                             mk_rh_connection);
 463     sr->referer = mk_request_header_find(toc, toc_len, headers,
 464                                          mk_rh_referer);
 465     sr->user_agent = mk_request_header_find(toc, toc_len, headers,
 466                                             mk_rh_user_agent);
 467     sr->range = mk_request_header_find(toc, toc_len, headers, mk_rh_range);
 468     sr->if_modified_since = mk_request_header_find(toc, toc_len, headers,
 469                                                    mk_rh_if_modified_since);
 470
 471     /* Default Keepalive is off */
 472     if (sr->protocol == HTTP_PROTOCOL_10) {
 473         sr->keep_alive = VAR_OFF;
 474         sr->close_now = VAR_ON;
 475     }
 476     else if(sr->protocol == HTTP_PROTOCOL_11) {
 477         sr->keep_alive = VAR_ON;
 478         sr->close_now = VAR_OFF;
 479     }
 480
 481     if (sr->connection.data) {
 482         if (mk_string_casestr(sr->connection.data, "Keep-Alive")) {
 483             sr->keep_alive = VAR_ON;
 484             sr->close_now = VAR_OFF;
 485         }
 486         else if(mk_string_casestr(sr->connection.data, "Close")) {
 487             sr->keep_alive = VAR_OFF;
 488             sr->close_now = VAR_ON;
 489         }
 490         else {
 491             /* Set as a non-valid connection header value */
 492             sr->connection.len = 0;
 493         }
 494     }
 495
 496     return 0;
 497 }
 498
 499 /* Return value of some variable sent in request */
 500 mk_pointer mk_request_header_find(struct header_toc * toc, int toc_len,
 501                                   char *request_body, mk_pointer header)
 502 {
 503     int i;
 504     mk_pointer var;
 505
 506     var.data = NULL;
 507     var.len = 0;
 508
 509     if (toc) {
 510         for (i = 0; i < toc_len; i++) {
 511             /* status = 1 means that the toc entry was already
 512              * checked by monkey
 513              */
 514             if (toc[i].status == 1) {
 515                 continue;
 516             }
 517
 518             if (!toc[i].init)
 519                 break;
 520
 521             if (strncasecmp(toc[i].init, header.data, header.len) == 0) {
 522                 var.data = toc[i].init + header.len + 1;
 523                 var.len = toc[i].end - var.data;
 524                 toc[i].status = 1;
 525                 return var;
 526             }
 527         }
 528     }
 529
 530     return var;
 531 }
 532
 533 /* FIXME: IMPROVE access */
 534 /* Look for some  index.xxx in pathfile */
 535 mk_pointer mk_request_index(char *pathfile)
 536 {
 537     unsigned long len;
 538     char *file_aux = 0;
 539     mk_pointer f;
 540     struct indexfile *aux_index;
 541
 542     mk_pointer_reset(&f);
 543
 544     aux_index = first_index;
 545
 546     while (aux_index) {
 547         mk_string_build(&file_aux, &len, "%s%s",
 548                         pathfile, aux_index->indexname);
 549
 550         if (access(file_aux, F_OK) == 0) {
 551             f.data = file_aux;
 552             f.len = len;
 553             return f;
 554         }
 555         mk_mem_free(file_aux);
 556         aux_index = aux_index->next;
 557     }
 558
 559     return f;
 560 }
 561
 562 /* Send error responses */
 563 void mk_request_error(int num_error, struct client_request *cr,
 564                       struct request *s_request, int debug)
 565 {
 566     char *aux_message = 0;
 567     mk_pointer message, *page = 0;
 568     long n;
 569
 570     /**
 571      * fixme s_log->error_details.data = NULL;
 572      */
 573
 574     switch (num_error) {
 575     case M_CLIENT_BAD_REQUEST:
 576         page = mk_request_set_default_page("Bad Request",
 577                                            s_request->uri,
 578                                            s_request->host_conf->
 579                                            host_signature);
 580         break;
 581
 582     case M_CLIENT_FORBIDDEN:
 583         page = mk_request_set_default_page("Forbidden",
 584                                            s_request->uri,
 585                                            s_request->host_conf->
 586                                            host_signature);
 587         //s_log->error_msg = request_error_msg_403;
 588         //s_log->error_details = s_request->uri;
 589         break;
 590
 591     case M_CLIENT_NOT_FOUND:
 592         mk_string_build(&message.data, &message.len,
 593                         "The requested URL was not found on this server.");
 594         page = mk_request_set_default_page("Not Found",
 595                                            message,
 596                                            s_request->host_conf->
 597                                            host_signature);
 598         //s_log->error_msg = request_error_msg_404;
 599         //s_log->error_details = s_request->uri;
 600
 601         mk_pointer_free(&message);
 602         break;
 603
 604     case M_CLIENT_METHOD_NOT_ALLOWED:
 605         page = mk_request_set_default_page("Method Not Allowed",
 606                                            s_request->uri,
 607                                            s_request->host_conf->
 608                                            host_signature);
 609
 610         //s_log->final_response = M_CLIENT_METHOD_NOT_ALLOWED;
 611         //s_log->error_msg = request_error_msg_405;
 612         //s_log->error_details = s_request->method_p;
 613         break;
 614
 615     case M_CLIENT_REQUEST_TIMEOUT:
 616         //s_log->status = S_LOG_OFF;
 617         //s_log->error_msg = request_error_msg_408;
 618         break;
 619
 620     case M_CLIENT_LENGTH_REQUIRED:
 621         //s_log->error_msg = request_error_msg_411;
 622         break;
 623
 624     case M_SERVER_NOT_IMPLEMENTED:
 625         page = mk_request_set_default_page("Method Not Implemented",
 626                                            s_request->uri,
 627                                            s_request->host_conf->
 628                                            host_signature);
 629         //s_log->final_response = M_SERVER_NOT_IMPLEMENTED;
 630         //s_log->error_msg = request_error_msg_501;
 631         //s_log->error_details = s_request->method_p;
 632         break;
 633
 634     case M_SERVER_INTERNAL_ERROR:
 635         mk_string_build(&message.data, &message.len,
 636                         "Problems found running %s ", s_request->uri);
 637         page = mk_request_set_default_page("Internal Server Error",
 638                                            message,
 639                                            s_request->host_conf->
 640                                            host_signature);
 641         //s_log->error_msg = request_error_msg_500;
 642
 643         mk_pointer_free(&message);
 644         break;
 645
 646     case M_SERVER_HTTP_VERSION_UNSUP:
 647         mk_pointer_reset(&message);
 648         page = mk_request_set_default_page("HTTP Version Not Supported",
 649                                            message,
 650                                            s_request->host_conf->
 651                                            host_signature);
 652         //s_log->error_msg = request_error_msg_505;
 653         break;
 654     }
 655
 656     //s_log->final_response = num_error;
 657
 658     s_request->headers->status = num_error;
 659     if (page) {
 660         s_request->headers->content_length = page->len;
 661     }
 662
 663     s_request->headers->location = NULL;
 664     s_request->headers->cgi = SH_NOCGI;
 665     s_request->headers->pconnections_left = 0;
 666     mk_pointer_reset(&s_request->headers->last_modified);
 667
 668     if (aux_message)
 669         mk_mem_free(aux_message);
 670
 671     if (!page) {
 672         mk_pointer_reset(&s_request->headers->content_type);
 673     }
 674     else {
 675         mk_pointer_set(&s_request->headers->content_type, "text/html\r\n");
 676     }
 677
 678     mk_header_send(cr->socket, cr, s_request);
 679
 680     if (debug == 1) {
 681         n = write(cr->socket, page->data, page->len);
 682         mk_pointer_free(page);
 683         mk_mem_free(page);
 684     }
 685 }
 686
 687 /* Build error page */
 688 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 689                                         char *signature)
 690 {
 691     char *temp;
 692     mk_pointer *p;
 693
 694     p = mk_mem_malloc(sizeof(mk_pointer));
 695
 696     temp = mk_pointer_to_buf(message);
 697     mk_string_build(&p->data, &p->len,
 698                     MK_REQUEST_DEFAULT_PAGE, title, temp, signature);
 699     mk_mem_free(temp);
 700
 701     return p;
 702 }
 703
 704 /* Create a memory allocation in order to handle the request data */
 705 struct request *mk_request_alloc()
 706 {
 707     struct request *request = 0;
 708
 709     request = mk_mem_malloc(sizeof(struct request));
 710     request->status = VAR_OFF;  /* Request not processed yet */
 711     request->make_log = VAR_ON; /* build log file of this request ? */
 712     request->close_now = VAR_OFF;
 713
 714     mk_pointer_reset(&request->body);
 715     request->status = VAR_ON;
 716     request->method = METHOD_NOT_FOUND;
 717
 718     mk_pointer_reset(&request->uri);
 719     request->uri_processed = NULL;
 720     request->uri_twin = VAR_OFF;
 721
 722     request->accept.data = NULL;
 723     request->accept_language.data = NULL;
 724     request->accept_encoding.data = NULL;
 725     request->accept_charset.data = NULL;
 726     request->content_length = 0;
 727     request->content_type.data = NULL;
 728     request->connection.data = NULL;
 729     request->cookies.data = NULL;
 730     request->host.data = NULL;
 731     request->if_modified_since.data = NULL;
 732     request->last_modified_since.data = NULL;
 733     request->range.data = NULL;
 734     request->referer.data = NULL;
 735     request->resume.data = NULL;
 736     request->user_agent.data = NULL;
 737
 738     request->post_variables.data = NULL;
 739
 740     request->user_uri = NULL;
 741     mk_pointer_reset(&request->query_string);
 742
 743     request->file_info = NULL;
 744     request->virtual_user = NULL;
 745     request->script_filename = NULL;
 746     mk_pointer_reset(&request->real_path);
 747     request->host_conf = config->hosts;
 748
 749     request->loop = 0;
 750     request->bytes_to_send = -1;
 751     request->bytes_offset = 0;
 752     request->fd_file = -1;
 753
 754     /* Response Headers */
 755     request->headers = mk_header_create();
 756
 757     /* Plugin handler */
 758     request->handled_by = NULL;
 759
 760     return request;
 761 }
 762
 763 void mk_request_free_list(struct client_request *cr)
 764 {
 765     struct request *sr = 0, *before = 0;
 766
 767     /* sr = last node */
 768
 769     while (cr->request) {
 770         sr = before = cr->request;
 771
 772         while (sr->next) {
 773             sr = sr->next;
 774         }
 775
 776         if (sr != cr->request) {
 777             while (before->next != sr) {
 778                 before = before->next;
 779             }
 780             before->next = NULL;
 781         }
 782         else {
 783             cr->request = NULL;
 784         }
 785         mk_request_free(sr);
 786     }
 787     cr->request = NULL;
 788 }
 789
 790 void mk_request_free(struct request *sr)
 791 {
 792     if (sr->fd_file > 0) {
 793         close(sr->fd_file);
 794     }
 795     if (sr->headers) {
 796         mk_mem_free(sr->headers->location);
 797         mk_pointer_free(&sr->headers->last_modified);
 798         mk_mem_free(sr->headers);
 799     }
 800
 801     mk_pointer_reset(&sr->body);
 802     mk_pointer_reset(&sr->uri);
 803
 804     if (sr->uri_twin == VAR_ON) {
 805         mk_mem_free(sr->uri_processed);
 806     }
 807
 808     mk_pointer_free(&sr->post_variables);
 809     mk_mem_free(sr->user_uri);
 810     mk_pointer_reset(&sr->query_string);
 811
 812     mk_mem_free(sr->file_info);
 813     mk_mem_free(sr->virtual_user);
 814     mk_mem_free(sr->script_filename);
 815     mk_pointer_free(&sr->real_path);
 816     mk_mem_free(sr);
 817 }
 818
 819 /* Create a client request struct and put it on the
 820  * main list
 821  */
 822 struct client_request *mk_request_client_create(int socket)
 823 {
 824     struct request_idx *request_index;
 825     struct client_request *cr;
 826     struct sched_connection *sc;
 827
 828     sc = mk_sched_get_connection(NULL, socket);
 829     cr = mk_mem_malloc(sizeof(struct client_request));
 830
 831     /* IPv4 Address */
 832     cr->ipv4 = &sc->ipv4;
 833
 834     cr->pipelined = FALSE;
 835     cr->counter_connections = 0;
 836     cr->socket = socket;
 837     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 838     cr->request = NULL;
 839
 840     /* creation time in unix time */
 841     cr->init_time = sc->arrive_time;
 842
 843     cr->next = NULL;
 844     cr->body = mk_mem_malloc(MAX_REQUEST_BODY);
 845     cr->body_length = 0;
 846     cr->body_pos_end = -1;
 847     cr->first_method = HTTP_METHOD_UNKNOWN;
 848
 849     /* Add this request to the thread request list */
 850     request_index = mk_sched_get_request_index();
 851     if (!request_index->first) {
 852         request_index->first = request_index->last = cr;
 853     }
 854     else {
 855         request_index->last->next = cr;
 856         request_index->last = cr;
 857     }
 858
 859     /* Set again the global list */
 860     mk_sched_set_request_index(request_index);
 861
 862     return cr;
 863 }
 864
 865 struct client_request *mk_request_client_get(int socket)
 866 {
 867     struct request_idx *request_index;
 868     struct client_request *cr = NULL;
 869
 870     request_index = mk_sched_get_request_index();
 871     cr = request_index->first;
 872     while (cr != NULL) {
 873         if (cr->socket == socket) {
 874             break;
 875         }
 876         cr = cr->next;
 877     }
 878
 879     return cr;
 880 }
 881
 882 /*
 883  * From thread sched_list_node "list", remove the client_request
 884  * struct information
 885  */
 886 void mk_request_client_remove(int socket)
 887 {
 888     struct request_idx *request_index;
 889     struct client_request *cr, *aux;
 890
 891     request_index = mk_sched_get_request_index();
 892     cr = request_index->first;
 893
 894     while (cr) {
 895         if (cr->socket == socket) {
 896             if (cr == request_index->first) {
 897                 request_index->first = cr->next;
 898             }
 899             else {
 900                 aux = request_index->first;
 901                 while (aux->next != cr) {
 902                     aux = aux->next;
 903                 }
 904                 aux->next = cr->next;
 905                 if (!aux->next) {
 906                     request_index->last = aux;
 907                 }
 908             }
 909             break;
 910         }
 911         cr = cr->next;
 912     }
 913
 914     mk_mem_free(cr->body);
 915     mk_mem_free(cr);
 916
 917     /* Update thread index */
 918     mk_sched_set_request_index(request_index);
 919 }
 920
 921 struct header_toc *mk_request_header_toc_create(int len)
 922 {
 923     int i;
 924     struct header_toc *p;
 925
 926     p = (struct header_toc *) pthread_getspecific(mk_cache_header_toc);
 927
 928     for (i = 0; i < len; i++) {
 929         p[i].init = NULL;
 930         p[i].end = NULL;
 931         p[i].status = 0;
 932     }
 933     return p;
 934 }
 935
 936 void mk_request_header_toc_parse(struct header_toc *toc, int toc_len, char *data, int len)
 937 {
 938     char *p, *l = 0;
 939     int i;
 940
 941     p = data;
 942     for (i = 0; i < toc_len && p && l < data + len; i++) {
 943         l = strstr(p, MK_CRLF);
 944         if (l) {
 945             toc[i].init = p;
 946             toc[i].end = l;
 947             p = l + mk_crlf.len;
 948         }
 949         else {
 950             break;
 951         }
 952     }
 953 }
 954
 955 void mk_request_ka_next(struct client_request *cr)
 956 {
 957     bzero(cr->body, sizeof(cr->body));
 958     cr->first_method = -1;
 959     cr->body_pos_end = -1;
 960     cr->body_length = 0;
 961     cr->counter_connections++;
 962
 963     /* Update data for scheduler */
 964     cr->init_time = log_current_utime;
 965     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 966 }