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 0
  92 #define EXIT_ABORT -2
  93 #define EXIT_PCONNECTION 24
  94
  95 /* Request error messages for log file */
  96 #define ERROR_MSG_400 "[error 400] Bad Request"
  97 #define ERROR_MSG_403 "[error 403] Forbidden"
  98 #define ERROR_MSG_404 "[error 404] Not Found"
  99 #define ERROR_MSG_405 "[error 405] Method Not Allowed"
 100 #define ERROR_MSG_408 "[error 408] Request Timeout"
 101 #define ERROR_MSG_411 "[error 411] Length Required"
 102 #define ERROR_MSG_500 "[error 500] Internal Server Error"
 103 #define ERROR_MSG_501 "[error 501] Not Implemented"
 104 #define ERROR_MSG_505 "[error 505] HTTP Version Not Supported"
 105
 106 /* mk pointers with error messages */
 107 mk_pointer request_error_msg_400;
 108 mk_pointer request_error_msg_403;
 109 mk_pointer request_error_msg_404;
 110 mk_pointer request_error_msg_405;
 111 mk_pointer request_error_msg_408;
 112 mk_pointer request_error_msg_411;
 113 mk_pointer request_error_msg_500;
 114 mk_pointer request_error_msg_501;
 115 mk_pointer request_error_msg_505;
 116
 117 struct request_idx
 118 {
 119     struct client_request *first;
 120     struct client_request *last;
 121 };
 122
 123 struct client_request
 124 {
 125     int pipelined;              /* Pipelined request */
 126     int socket;
 127     int counter_connections;    /* Count persistent connections */
 128     int status;                 /* Request status */
 129     char *body;                 /* Original request sent */
 130
 131     mk_pointer *ipv4;
 132
 133     int body_length;
 134
 135     int body_pos_end;
 136     int first_method;
 137
 138     time_t init_time;
 139     struct request *request;    /* Parsed request */
 140     struct client_request *next;
 141 };
 142
 143 pthread_key_t request_index;
 144
 145 struct header_toc
 146 {
 147     char *init;
 148     char *end;
 149     int status;                 /* 0: not found, 1: found = skip! */
 150     struct header_toc *next;
 151 };
 152
 153 /* Request plugin Handler, each request can be handled by
 154  * several plugins, we handle list in a simple list */
 155 struct handler
 156 {
 157     struct plugin *p;
 158     struct handler *next;
 159 };
 160
 161 struct request
 162 {
 163     int status;
 164     int pipelined;              /* Pipelined request */
 165     mk_pointer body;
 166
 167     /*----First header of client request--*/
 168     int method;
 169     mk_pointer method_p;
 170     mk_pointer uri;             /* original request */
 171     char *uri_processed;        /* processed request */
 172     int uri_twin;
 173
 174     int protocol;
 175
 176     /* If request specify Connection: close, Monkey will
 177      * close the connection after send the response, by
 178      * default this var is set as VAR_OFF;
 179      */
 180     int close_now;
 181
 182         /*---Request headers--*/
 183     int content_length;
 184     mk_pointer accept;
 185     mk_pointer accept_language;
 186     mk_pointer accept_encoding;
 187     mk_pointer accept_charset;
 188     mk_pointer content_type;
 189     mk_pointer connection;
 190     mk_pointer cookies;
 191     mk_pointer host;
 192     mk_pointer if_modified_since;
 193     mk_pointer last_modified_since;
 194     mk_pointer range;
 195     mk_pointer referer;
 196     mk_pointer resume;
 197     mk_pointer user_agent;
 198         /*---------------------*/
 199
 200     /* POST */
 201     mk_pointer post_variables;
 202         /*-----------------*/
 203
 204         /*-Internal-*/
 205     mk_pointer real_path;       /* Absolute real path */
 206     char *user_uri;             /* ~user/...path */
 207     mk_pointer query_string;    /* ?... */
 208
 209     char *virtual_user;         /* Virtualhost user */
 210     char *script_filename;
 211     int keep_alive;
 212     int user_home;              /* user_home request(VAR_ON/VAR_OFF) */
 213
 214         /*-Connection-*/
 215     int port;
 216         /*------------*/
 217
 218     int make_log;
 219     int cgi_pipe[2];
 220
 221     /* file descriptors */
 222     int fd_file;
 223
 224     struct file_info *file_info;
 225     struct host *host_conf;
 226     struct log_info *log;       /* Request Log */
 227     struct header_values *headers;      /* headers response */
 228     struct request *next;
 229
 230     long loop;
 231     long bytes_to_send;
 232     off_t bytes_offset;
 233
 234     /* Plugin handlers */
 235     struct plugin *handled_by;
 236 };
 237
 238 struct header_values
 239 {
 240     int status;
 241
 242     int content_length;
 243     mk_pointer content_length_p;
 244
 245     int cgi;
 246     int pconnections_left;
 247     int ranges[2];
 248     int transfer_encoding;
 249     int breakline;
 250
 251     mk_pointer content_type;
 252     mk_pointer last_modified;
 253     char *location;
 254 };
 255
 256
 257 struct request *mk_request_parse(struct client_request *cr);
 258 int mk_request_process(struct client_request *cr, struct request *s_request);
 259 mk_pointer mk_request_index(char *pathfile);
 260
 261
 262 /* Custom HTML Page for errors */
 263 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 264                                         char *signature);
 265
 266 int mk_request_header_process(struct request *sr);
 267 mk_pointer mk_request_header_find(struct header_toc *toc, int toc_len,
 268                                   char *request_body, mk_pointer header);
 269
 270 void mk_request_error(int num_error, struct client_request *cr,
 271                       struct request *s_request, int debug,
 272                       struct log_info *s_log);
 273
 274 struct request *mk_request_alloc();
 275 void mk_request_free_list(struct client_request *cr);
 276 void mk_request_free(struct request *sr);
 277
 278 struct client_request *mk_request_client_create(int socket);
 279 struct client_request *mk_request_client_get(int socket);
 280 struct client_request *mk_request_client_remove(int socket);
 281
 282 void mk_request_init_error_msgs();
 283
 284 int mk_handler_read(int socket, struct client_request *cr);
 285 int mk_handler_write(int socket, struct client_request *cr);
 286
 287
 288 struct header_toc *mk_request_header_toc_create(int len);
 289 void mk_request_header_toc_parse(struct header_toc *toc, int toc_len,
 290                                  char *data, int len);
 291
 292 void mk_request_ka_next(struct client_request *cr);
 293 #endif