src/include/request.h

   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 /* request.c */
  23
  24 #include "memory.h"
  25 #include "scheduler.h"
  26
  27 #ifndef MK_REQUEST_H
  28 #define MK_REQUEST_H
  29
  30 #define MK_REQUEST_DEFAULT_PAGE  "<HTML><BODY><H1>%s</H1>%s<BR><HR><ADDRESS>%s</ADDRESS></BODY></HTML>"
  31
  32 /* Handle index file names: index.* */
  33 #define MAX_INDEX_NOMBRE 50
  34 struct indexfile
  35 {
  36     char indexname[MAX_INDEX_NOMBRE];
  37     struct indexfile *next;
  38 }        *first_index;
  39
  40 #define MK_CRLF "\r\n"
  41 #define MK_ENDBLOCK "\r\n\r\n"
  42
  43 mk_pointer mk_crlf;
  44 mk_pointer mk_endblock;
  45
  46 /* Headers */
  47 #define RH_ACCEPT "Accept:"
  48 #define RH_ACCEPT_CHARSET "Accept-Charset:"
  49 #define RH_ACCEPT_ENCODING "Accept-Encoding:"
  50 #define RH_ACCEPT_LANGUAGE "Accept-Language:"
  51 #define RH_CONNECTION "Connection:"
  52 #define RH_COOKIE "Cookie:"
  53 #define RH_CONTENT_LENGTH "Content-Length:"
  54 #define RH_CONTENT_RANGE "Content-Range:"
  55 #define RH_CONTENT_TYPE "Content-type:"
  56 #define RH_IF_MODIFIED_SINCE "If-Modified-Since:"
  57 #define RH_HOST "Host:"
  58 #define RH_LAST_MODIFIED "Last-Modified:"
  59 #define RH_LAST_MODIFIED_SINCE "Last-Modified-Since:"
  60 #define RH_REFERER "Referer:"
  61 #define RH_RANGE "Range:"
  62 #define RH_USER_AGENT "User-Agent:"
  63
  64 mk_pointer mk_rh_accept;
  65 mk_pointer mk_rh_accept_charset;
  66 mk_pointer mk_rh_accept_encoding;
  67 mk_pointer mk_rh_accept_language;
  68 mk_pointer mk_rh_connection;
  69 mk_pointer mk_rh_cookie;
  70 mk_pointer mk_rh_content_length;
  71 mk_pointer mk_rh_content_range;
  72 mk_pointer mk_rh_content_type;
  73 mk_pointer mk_rh_if_modified_since;
  74 mk_pointer mk_rh_host;
  75 mk_pointer mk_rh_last_modified;
  76 mk_pointer mk_rh_last_modified_since;
  77 mk_pointer mk_rh_referer;
  78 mk_pointer mk_rh_range;
  79 mk_pointer mk_rh_user_agent;
  80
  81 /* Aqui se registran temporalmente los
  82 parametros de una peticion */
  83 #define MAX_REQUEST_METHOD 10
  84 #define MAX_REQUEST_URI 1025
  85 #define MAX_REQUEST_PROTOCOL 10
  86 #define MAX_SCRIPTALIAS 3
  87
  88 #define MK_REQUEST_STATUS_INCOMPLETE -1
  89 #define MK_REQUEST_STATUS_COMPLETED 0
  90
  91 #define EXIT_NORMAL -1
  92 #define EXIT_PCONNECTION 24
  93
  94 /* Request error messages for log file */
  95 #define ERROR_MSG_400 "[error 400] Bad Request"
  96 #define ERROR_MSG_403 "[error 403] Forbidden"
  97 #define ERROR_MSG_404 "[error 404] Not Found"
  98 #define ERROR_MSG_405 "[error 405] Method Not Allowed"
  99 #define ERROR_MSG_408 "[error 408] Request Timeout"
 100 #define ERROR_MSG_411 "[error 411] Length Required"
 101 #define ERROR_MSG_500 "[error 500] Internal Server Error"
 102 #define ERROR_MSG_501 "[error 501] Not Implemented"
 103 #define ERROR_MSG_505 "[error 505] HTTP Version Not Supported"
 104
 105 /* mk pointers with error messages */
 106 mk_pointer request_error_msg_400;
 107 mk_pointer request_error_msg_403;
 108 mk_pointer request_error_msg_404;
 109 mk_pointer request_error_msg_405;
 110 mk_pointer request_error_msg_408;
 111 mk_pointer request_error_msg_411;
 112 mk_pointer request_error_msg_500;
 113 mk_pointer request_error_msg_501;
 114 mk_pointer request_error_msg_505;
 115
 116 struct request_idx
 117 {
 118     struct client_request *first;
 119     struct client_request *last;
 120 };
 121
 122 struct client_request
 123 {
 124     int pipelined;              /* Pipelined request */
 125     int socket;
 126     int counter_connections;    /* Count persistent connections */
 127     int status;                 /* Request status */
 128     char *body;                 /* Original request sent */
 129
 130     mk_pointer *ipv4;
 131
 132     int body_length;
 133
 134     int first_block_end;
 135     int first_method;
 136
 137     time_t init_time;
 138     struct request *request;    /* Parsed request */
 139     struct client_request *next;
 140 };
 141
 142 pthread_key_t request_index;
 143
 144 struct header_toc
 145 {
 146     char *init;
 147     char *end;
 148     int status;                 /* 0: not found, 1: found = skip! */
 149     struct header_toc *next;
 150 };
 151
 152 /* Request plugin Handler, each request can be handled by
 153  * several plugins, we handle list in a simple list */
 154 struct handler
 155 {
 156     struct plugin *p;
 157     struct handler *next;
 158 };
 159
 160 struct request
 161 {
 162     int status;
 163     int pipelined;              /* Pipelined request */
 164     mk_pointer body;
 165
 166         /*----First header of client request--*/
 167     int method;
 168     mk_pointer method_p;
 169     mk_pointer uri;             /* original request */
 170     char *uri_processed;        /* processed request */
 171     int uri_twin;
 172
 173     int protocol;
 174         /*------------------*/
 175
 176         /*---Request headers--*/
 177     int content_length;
 178     mk_pointer accept;
 179     mk_pointer accept_language;
 180     mk_pointer accept_encoding;
 181     mk_pointer accept_charset;
 182     mk_pointer content_type;
 183     mk_pointer connection;
 184     mk_pointer cookies;
 185     mk_pointer host;
 186     mk_pointer if_modified_since;
 187     mk_pointer last_modified_since;
 188     mk_pointer range;
 189     mk_pointer referer;
 190     mk_pointer resume;
 191     mk_pointer user_agent;
 192         /*---------------------*/
 193
 194     /* POST */
 195     mk_pointer post_variables;
 196         /*-----------------*/
 197
 198         /*-Internal-*/
 199     mk_pointer real_path;       /* Absolute real path */
 200     char *user_uri;             /* ~user/...path */
 201     mk_pointer query_string;    /* ?... */
 202
 203     char *virtual_user;         /* Virtualhost user */
 204     char *script_filename;
 205     int keep_alive;
 206     int user_home;              /* user_home request(VAR_ON/VAR_OFF) */
 207
 208         /*-Connection-*/
 209     int port;
 210         /*------------*/
 211
 212     int make_log;
 213     int cgi_pipe[2];
 214
 215     /* file descriptors */
 216     int fd_file;
 217
 218     struct file_info *file_info;
 219     struct host *host_conf;
 220     struct log_info *log;       /* Request Log */
 221     struct header_values *headers;      /* headers response */
 222     struct request *next;
 223
 224     long loop;
 225     long bytes_to_send;
 226     off_t bytes_offset;
 227
 228     /* Plugin handlers */
 229     struct plugin *handled_by;
 230 };
 231
 232 struct header_values
 233 {
 234     int status;
 235
 236     int content_length;
 237     mk_pointer content_length_p;
 238
 239     int cgi;
 240     int pconnections_left;
 241     int ranges[2];
 242     int transfer_encoding;
 243     int breakline;
 244
 245     mk_pointer content_type;
 246     mk_pointer last_modified;
 247     char *location;
 248 };
 249
 250
 251 struct request *mk_request_parse(struct client_request *cr);
 252 int mk_request_process(struct client_request *cr, struct request *s_request);
 253 mk_pointer mk_request_index(char *pathfile);
 254
 255
 256 /* Custom HTML Page for errors */
 257 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 258                                         char *signature);
 259
 260 int mk_request_header_process(struct request *sr);
 261 mk_pointer mk_request_header_find(struct header_toc *toc, int toc_len,
 262                                   char *request_body, mk_pointer header);
 263
 264 void mk_request_error(int num_error, struct client_request *cr,
 265                       struct request *s_request, int debug,
 266                       struct log_info *s_log);
 267
 268 struct request *mk_request_alloc();
 269 void mk_request_free_list(struct client_request *cr);
 270 void mk_request_free(struct request *sr);
 271
 272 struct client_request *mk_request_client_create(int socket);
 273 struct client_request *mk_request_client_get(int socket);
 274 struct client_request *mk_request_client_remove(int socket);
 275
 276 void mk_request_init_error_msgs();
 277
 278 int mk_handler_read(int socket, struct client_request *cr);
 279 int mk_handler_write(int socket, struct client_request *cr);
 280
 281
 282 struct header_toc *mk_request_header_toc_create(int len);
 283 void mk_request_header_toc_parse(struct header_toc *toc, char *data, int len);
 284
 285 void mk_request_ka_next(struct client_request *cr);
 286 #endif