src/method.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 <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <sys/socket.h>
  26 #include <sys/wait.h>
  27 #include <netinet/in.h>
  28 #include <stdlib.h>
  29 #include <unistd.h>
  30 #include <string.h>
  31 #include <time.h>
  32
  33 #include "monkey.h"
  34
  35 #include "str.h"
  36 #include "memory.h"
  37 #include "http.h"
  38 #include "http_status.h"
  39 #include "socket.h"
  40 #include "config.h"
  41 #include "utils.h"
  42 #include "file.h"
  43 #include "cache.h"
  44
  45 long int mk_method_post_content_length(char *body)
  46 {
  47     struct header_toc *toc = NULL;
  48     long int len;
  49     mk_pointer tmp;
  50
  51     /* obs: Table of Content (toc) is created when the full
  52      * request has arrived, this function cannot be used from
  53      * mk_http_pending_request().
  54      */
  55     toc = mk_cache_get(mk_cache_header_toc);
  56     tmp = mk_request_header_find(toc, MK_KNOWN_HEADERS, body,
  57                                  mk_rh_content_length);
  58
  59     if (!tmp.data) {
  60         return -1;
  61     }
  62
  63     len = atoi(tmp.data);
  64
  65     return len;
  66 }
  67
  68
  69 /* POST METHOD */
  70 int mk_method_post(struct client_request *cr, struct request *sr)
  71 {
  72     struct header_toc *toc = NULL;
  73     mk_pointer tmp;
  74     char buffer[MAX_REQUEST_BODY];
  75     long content_length_post = 0;
  76
  77     content_length_post = mk_method_post_content_length(cr->body);
  78
  79     /* Length Required */
  80     if (content_length_post == -1) {
  81         mk_request_error(M_CLIENT_LENGTH_REQUIRED, cr, sr);
  82         return -1;
  83     }
  84
  85     /* Bad request */
  86     if (content_length_post <= 0) {
  87         mk_request_error(M_CLIENT_BAD_REQUEST, cr, sr);
  88         return -1;
  89     }
  90
  91     /* Content length too large */
  92     if (content_length_post >= MAX_REQUEST_BODY) {
  93         mk_request_error(M_CLIENT_REQUEST_ENTITY_TOO_LARGE, cr, sr);
  94         return -1;
  95     }
  96
  97     toc = mk_cache_get(mk_cache_header_toc);
  98     tmp = mk_request_header_find(toc, MK_KNOWN_HEADERS, sr->body.data,
  99                                  mk_rh_content_type);
 100
 101     if (!tmp.data) {
 102         mk_request_error(M_CLIENT_BAD_REQUEST, cr, sr);
 103         return -1;
 104     }
 105     sr->content_type = tmp;
 106
 107     if (sr->post_variables.len < content_length_post) {
 108         content_length_post = strlen(buffer);
 109     }
 110
 111     sr->content_length = content_length_post;
 112
 113     return 0;
 114 }
 115
 116 /* Return POST variables sent in request */
 117 mk_pointer mk_method_post_get_vars(char *body, int index)
 118 {
 119     long len = 1;
 120     char *str = 0;
 121     mk_pointer p;
 122
 123     str = mk_string_copy_substr(body, index, strlen(body));
 124     if (str) {
 125         len = strlen(str);
 126     }
 127
 128     p.data = str;
 129     p.len = len;
 130
 131     return p;
 132 }