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     if (status < 0) {
 255         mk_header_set_http_status(s_request, M_CLIENT_BAD_REQUEST);
 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     if (s_request->uri_processed[0] != '/') {
 276         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1);
 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         mk_request_error(M_CLIENT_BAD_REQUEST, cr, s_request, 1);
 283         return EXIT_NORMAL;
 284     }
 285
 286     /* Method not allowed ? */
 287     if (s_request->method == METHOD_NOT_ALLOWED) {
 288         mk_request_error(M_CLIENT_METHOD_NOT_ALLOWED, cr, s_request, 1);
 289         return EXIT_NORMAL;
 290     }
 291
 292     /* Validating protocol version */
 293     if (s_request->protocol == HTTP_PROTOCOL_UNKNOWN) {
 294         mk_request_error(M_SERVER_HTTP_VERSION_UNSUP, cr, s_request, 1);
 295         return EXIT_NORMAL;
 296     }
 297
 298     if (s_request->host.data) {
 299         host = mk_config_host_find(s_request->host);
 300         if (host) {
 301             s_request->host_conf = host;
 302         }
 303         else {
 304             s_request->host_conf = config->hosts;
 305         }
 306     }
 307     else {
 308         s_request->host_conf = config->hosts;
 309     }
 310
 311     /* is requesting an user home directory ? */
 312     if (config->user_dir) {
 313         if (strncmp(s_request->uri_processed,
 314                     mk_user_home.data, mk_user_home.len) == 0) {
 315             if (mk_user_init(cr, s_request) != 0) {
 316                 return EXIT_NORMAL;
 317             }
 318         }
 319     }
 320
 321     /* Handling method requested */
 322     if (s_request->method == HTTP_METHOD_POST) {
 323         if ((status = mk_method_post(cr, s_request)) == -1) {
 324             return status;
 325         }
 326     }
 327
 328     /* Plugins Stage 20 */
 329     int ret;
 330     ret = mk_plugin_stage_run(MK_PLUGIN_STAGE_20, cr->socket, NULL,
 331                               cr, s_request);
 332
 333     if (ret == MK_PLUGIN_RET_CLOSE_CONX) {
 334 #ifdef TRACE
 335         MK_TRACE("STAGE 20 requested close conexion");
 336 #endif
 337         return EXIT_ABORT;
 338     }
 339
 340     /* Normal HTTP process */
 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     /* 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 = mk_pointer_create(sr->body.data, uri_init, uri_end + 1);
 398
 399     if (sr->uri.len < 1) {
 400         return -1;
 401     }
 402
 403
 404     /* HTTP Version */
 405     prot_end = fh_limit - 1;
 406     if (prot_end != prot_init && prot_end > 0) {
 407         sr->protocol = mk_http_protocol_check(sr->body.data + prot_init,
 408                                               prot_end - prot_init);
 409         sr->protocol_p = mk_http_protocol_check_str(sr->protocol);
 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 /* Look for some  index.xxx in pathfile */
 534 mk_pointer mk_request_index(char *pathfile)
 535 {
 536     unsigned long len;
 537     char *file_aux = 0;
 538     mk_pointer f;
 539     struct indexfile *aux_index;
 540
 541     mk_pointer_reset(&f);
 542
 543     aux_index = first_index;
 544
 545     while (aux_index) {
 546         mk_string_build(&file_aux, &len, "%s%s",
 547                         pathfile, aux_index->indexname);
 548
 549         if (access(file_aux, F_OK) == 0) {
 550             f.data = file_aux;
 551             f.len = len;
 552             return f;
 553         }
 554         mk_mem_free(file_aux);
 555         aux_index = aux_index->next;
 556     }
 557
 558     return f;
 559 }
 560
 561 /* Send error responses */
 562 void mk_request_error(int http_status, struct client_request *cr,
 563                       struct request *sr, int debug){
 564     char *aux_message = 0;
 565     mk_pointer message, *page = 0;
 566     long n;
 567
 568     switch (http_status) {
 569     case M_CLIENT_BAD_REQUEST:
 570         page = mk_request_set_default_page("Bad Request",
 571                                            sr->uri,
 572                                            sr->host_conf->host_signature);
 573         break;
 574
 575     case M_CLIENT_FORBIDDEN:
 576         page = mk_request_set_default_page("Forbidden",
 577                                            sr->uri,
 578                                            sr->host_conf->host_signature);
 579         break;
 580
 581     case M_CLIENT_NOT_FOUND:
 582         mk_string_build(&message.data, &message.len,
 583                         "The requested URL was not found on this server.");
 584         page = mk_request_set_default_page("Not Found",
 585                                            message,
 586                                            sr->host_conf->host_signature);
 587         mk_pointer_free(&message);
 588         break;
 589
 590     case M_CLIENT_METHOD_NOT_ALLOWED:
 591         page = mk_request_set_default_page("Method Not Allowed",
 592                                            sr->uri,
 593                                            sr->host_conf->host_signature);
 594         break;
 595
 596     case M_CLIENT_REQUEST_TIMEOUT:
 597     case M_CLIENT_LENGTH_REQUIRED:
 598         break;
 599
 600     case M_SERVER_NOT_IMPLEMENTED:
 601         page = mk_request_set_default_page("Method Not Implemented",
 602                                            sr->uri,
 603                                            sr->host_conf->host_signature);
 604         break;
 605
 606     case M_SERVER_INTERNAL_ERROR:
 607         mk_string_build(&message.data, &message.len,
 608                         "Problems found running %s ", sr->uri);
 609         page = mk_request_set_default_page("Internal Server Error",
 610                                            message,
 611                                            sr->host_conf->host_signature);
 612         //s_log->error_msg = request_error_msg_500;
 613
 614         mk_pointer_free(&message);
 615         break;
 616
 617     case M_SERVER_HTTP_VERSION_UNSUP:
 618         mk_pointer_reset(&message);
 619         page = mk_request_set_default_page("HTTP Version Not Supported",
 620                                            message,
 621                                            sr->host_conf->host_signature);
 622         //s_log->error_msg = request_error_msg_505;
 623         break;
 624     }
 625
 626     //s_log->final_response = num_error;
 627
 628     mk_header_set_http_status(sr, http_status);
 629     if (page) {
 630         sr->headers->content_length = page->len;
 631     }
 632
 633     sr->headers->location = NULL;
 634     sr->headers->cgi = SH_NOCGI;
 635     sr->headers->pconnections_left = 0;
 636     mk_pointer_reset(&sr->headers->last_modified);
 637
 638     if (aux_message)
 639         mk_mem_free(aux_message);
 640
 641     if (!page) {
 642         mk_pointer_reset(&sr->headers->content_type);
 643     }
 644     else {
 645         mk_pointer_set(&sr->headers->content_type, "text/html\r\n");
 646     }
 647
 648     mk_header_send(cr->socket, cr, sr);
 649
 650     if (debug == 1) {
 651         n = write(cr->socket, page->data, page->len);
 652         mk_pointer_free(page);
 653         mk_mem_free(page);
 654     }
 655 }
 656
 657 /* Build error page */
 658 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 659                                         char *signature)
 660 {
 661     char *temp;
 662     mk_pointer *p;
 663
 664     p = mk_mem_malloc(sizeof(mk_pointer));
 665
 666     temp = mk_pointer_to_buf(message);
 667     mk_string_build(&p->data, &p->len,
 668                     MK_REQUEST_DEFAULT_PAGE, title, temp, signature);
 669     mk_mem_free(temp);
 670
 671     return p;
 672 }
 673
 674 /* Create a memory allocation in order to handle the request data */
 675 struct request *mk_request_alloc()
 676 {
 677     struct request *request = 0;
 678
 679     request = mk_mem_malloc(sizeof(struct request));
 680     request->status = VAR_OFF;  /* Request not processed yet */
 681     request->close_now = VAR_OFF;
 682
 683     mk_pointer_reset(&request->body);
 684     request->status = VAR_ON;
 685     request->method = METHOD_NOT_FOUND;
 686
 687     mk_pointer_reset(&request->uri);
 688     request->uri_processed = NULL;
 689     request->uri_twin = VAR_OFF;
 690
 691     request->accept.data = NULL;
 692     request->accept_language.data = NULL;
 693     request->accept_encoding.data = NULL;
 694     request->accept_charset.data = NULL;
 695     request->content_length = 0;
 696     request->content_type.data = NULL;
 697     request->connection.data = NULL;
 698     request->cookies.data = NULL;
 699     request->host.data = NULL;
 700     request->if_modified_since.data = NULL;
 701     request->last_modified_since.data = NULL;
 702     request->range.data = NULL;
 703     request->referer.data = NULL;
 704     request->resume.data = NULL;
 705     request->user_agent.data = NULL;
 706
 707     request->post_variables.data = NULL;
 708
 709     request->user_uri = NULL;
 710     mk_pointer_reset(&request->query_string);
 711
 712     request->file_info = NULL;
 713     request->virtual_user = NULL;
 714     request->script_filename = NULL;
 715     mk_pointer_reset(&request->real_path);
 716     request->host_conf = config->hosts;
 717
 718     request->loop = 0;
 719     request->bytes_to_send = -1;
 720     request->bytes_offset = 0;
 721     request->fd_file = -1;
 722
 723     /* Response Headers */
 724     request->headers = mk_header_create();
 725
 726     /* Plugin handler */
 727     request->handled_by = NULL;
 728
 729     return request;
 730 }
 731
 732 void mk_request_free_list(struct client_request *cr)
 733 {
 734     struct request *sr = 0, *before = 0;
 735
 736     /* sr = last node */
 737 #ifdef TRACE
 738     MK_TRACE("Free struct client_request [FD %i]", cr->socket);
 739 #endif
 740
 741     while (cr->request) {
 742         sr = before = cr->request;
 743
 744         while (sr->next) {
 745             sr = sr->next;
 746         }
 747
 748         if (sr != cr->request) {
 749             while (before->next != sr) {
 750                 before = before->next;
 751             }
 752             before->next = NULL;
 753         }
 754         else {
 755             cr->request = NULL;
 756         }
 757         mk_request_free(sr);
 758     }
 759     cr->request = NULL;
 760 }
 761
 762 void mk_request_free(struct request *sr)
 763 {
 764     if (sr->fd_file > 0) {
 765         close(sr->fd_file);
 766     }
 767     if (sr->headers) {
 768         mk_mem_free(sr->headers->location);
 769         mk_pointer_free(&sr->headers->last_modified);
 770         mk_mem_free(sr->headers);
 771
 772         if (sr->headers->content_length >= 0) {
 773             mk_pointer_free(&sr->headers->content_length_p);
 774         }
 775     }
 776
 777     mk_pointer_reset(&sr->body);
 778     mk_pointer_reset(&sr->uri);
 779
 780     if (sr->uri_twin == VAR_ON) {
 781         mk_mem_free(sr->uri_processed);
 782     }
 783
 784     mk_pointer_free(&sr->post_variables);
 785     mk_mem_free(sr->user_uri);
 786     mk_pointer_reset(&sr->query_string);
 787
 788     mk_mem_free(sr->file_info);
 789     mk_mem_free(sr->virtual_user);
 790     mk_mem_free(sr->script_filename);
 791     mk_pointer_free(&sr->real_path);
 792     mk_mem_free(sr);
 793 }
 794
 795 /* Create a client request struct and put it on the
 796  * main list
 797  */
 798 struct client_request *mk_request_client_create(int socket)
 799 {
 800     struct request_idx *request_index;
 801     struct client_request *cr;
 802     struct sched_connection *sc;
 803
 804     sc = mk_sched_get_connection(NULL, socket);
 805     cr = mk_mem_malloc(sizeof(struct client_request));
 806
 807     /* IPv4 Address */
 808     cr->ipv4 = &sc->ipv4;
 809
 810     cr->pipelined = FALSE;
 811     cr->counter_connections = 0;
 812     cr->socket = socket;
 813     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 814     cr->request = NULL;
 815
 816     /* creation time in unix time */
 817     cr->init_time = sc->arrive_time;
 818
 819     cr->next = NULL;
 820     cr->body = mk_mem_malloc(MAX_REQUEST_BODY);
 821     cr->body_length = 0;
 822     cr->body_pos_end = -1;
 823     cr->first_method = HTTP_METHOD_UNKNOWN;
 824
 825     /* Add this request to the thread request list */
 826     request_index = mk_sched_get_request_index();
 827     if (!request_index->first) {
 828         request_index->first = request_index->last = cr;
 829     }
 830     else {
 831         request_index->last->next = cr;
 832         request_index->last = cr;
 833     }
 834
 835     /* Set again the global list */
 836     mk_sched_set_request_index(request_index);
 837
 838     return cr;
 839 }
 840
 841 struct client_request *mk_request_client_get(int socket)
 842 {
 843     struct request_idx *request_index;
 844     struct client_request *cr = NULL;
 845
 846     request_index = mk_sched_get_request_index();
 847     cr = request_index->first;
 848     while (cr != NULL) {
 849         if (cr->socket == socket) {
 850             break;
 851         }
 852         cr = cr->next;
 853     }
 854
 855     return cr;
 856 }
 857
 858 /*
 859  * From thread sched_list_node "list", remove the client_request
 860  * struct information
 861  */
 862 void mk_request_client_remove(int socket)
 863 {
 864     struct request_idx *request_index;
 865     struct client_request *cr, *aux;
 866
 867     request_index = mk_sched_get_request_index();
 868     cr = request_index->first;
 869
 870     while (cr) {
 871         if (cr->socket == socket) {
 872             if (cr == request_index->first) {
 873                 request_index->first = cr->next;
 874             }
 875             else {
 876                 aux = request_index->first;
 877                 while (aux->next != cr) {
 878                     aux = aux->next;
 879                 }
 880                 aux->next = cr->next;
 881                 if (!aux->next) {
 882                     request_index->last = aux;
 883                 }
 884             }
 885             break;
 886         }
 887         cr = cr->next;
 888     }
 889
 890     mk_mem_free(cr->body);
 891     mk_mem_free(cr);
 892
 893     /* Update thread index */
 894     mk_sched_set_request_index(request_index);
 895 }
 896
 897 struct header_toc *mk_request_header_toc_create(int len)
 898 {
 899     int i;
 900     struct header_toc *p;
 901
 902     p = (struct header_toc *) pthread_getspecific(mk_cache_header_toc);
 903
 904     for (i = 0; i < len; i++) {
 905         p[i].init = NULL;
 906         p[i].end = NULL;
 907         p[i].status = 0;
 908     }
 909     return p;
 910 }
 911
 912 void mk_request_header_toc_parse(struct header_toc *toc, int toc_len, char *data, int len)
 913 {
 914     char *p, *l = 0;
 915     int i;
 916
 917     p = data;
 918     for (i = 0; i < toc_len && p && l < data + len; i++) {
 919         l = strstr(p, MK_CRLF);
 920         if (l) {
 921             toc[i].init = p;
 922             toc[i].end = l;
 923             p = l + mk_crlf.len;
 924         }
 925         else {
 926             break;
 927         }
 928     }
 929 }
 930
 931 void mk_request_ka_next(struct client_request *cr)
 932 {
 933     bzero(cr->body, sizeof(cr->body));
 934     cr->first_method = -1;
 935     cr->body_pos_end = -1;
 936     cr->body_length = 0;
 937     cr->counter_connections++;
 938
 939     /* Update data for scheduler */
 940     cr->init_time = log_current_utime;
 941     cr->status = MK_REQUEST_STATUS_INCOMPLETE;
 942 }