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_NAME 50
  34 struct indexfile
  35 {
  36     char indexname[MAX_INDEX_NAME];
  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_ERROR -1
  93 #define EXIT_ABORT -2
  94 #define EXIT_PCONNECTION 24
  95
  96 struct request_idx
  97 {
  98     struct client_request *first;
  99     struct client_request *last;
 100 };
 101
 102 struct client_request
 103 {
 104     int pipelined;              /* Pipelined request */
 105     int socket;
 106     int counter_connections;    /* Count persistent connections */
 107     int status;                 /* Request status */
 108     char *body;                 /* Original request sent */
 109
 110     mk_pointer *ipv4;
 111
 112     int body_length;
 113
 114     int body_pos_end;
 115     int first_method;
 116
 117     time_t init_time;
 118     struct request *request;    /* Parsed request */
 119     struct client_request *next;
 120 };
 121
 122 pthread_key_t request_index;
 123
 124 struct header_toc
 125 {
 126     char *init;
 127     char *end;
 128     int status;                 /* 0: not found, 1: found = skip! */
 129     struct header_toc *next;
 130 };
 131
 132 /* Request plugin Handler, each request can be handled by
 133  * several plugins, we handle list in a simple list */
 134 struct handler
 135 {
 136     struct plugin *p;
 137     struct handler *next;
 138 };
 139
 140 struct request
 141 {
 142     int status;
 143
 144     int pipelined;              /* Pipelined request */
 145     mk_pointer body;
 146
 147     /*----First header of client request--*/
 148     int method;
 149     mk_pointer method_p;
 150     mk_pointer uri;             /* original request */
 151     char *uri_processed;        /* processed request */
 152     int uri_twin;
 153
 154     int protocol;
 155     mk_pointer protocol_p;
 156
 157     /* If request specify Connection: close, Monkey will
 158      * close the connection after send the response, by
 159      * default this var is set to VAR_OFF;
 160      */
 161     int close_now;
 162
 163     /*---Request headers--*/
 164     int content_length;
 165     mk_pointer accept;
 166     mk_pointer accept_language;
 167     mk_pointer accept_encoding;
 168     mk_pointer accept_charset;
 169     mk_pointer content_type;
 170     mk_pointer connection;
 171     mk_pointer cookies;
 172     mk_pointer host;
 173     mk_pointer if_modified_since;
 174     mk_pointer last_modified_since;
 175     mk_pointer range;
 176     mk_pointer referer;
 177     mk_pointer resume;
 178     mk_pointer user_agent;
 179     /*---------------------*/
 180
 181     /* POST */
 182     mk_pointer post_variables;
 183     /*-----------------*/
 184
 185     /*-Internal-*/
 186     mk_pointer real_path;       /* Absolute real path */
 187     char *user_uri;             /* ~user/...path */
 188     mk_pointer query_string;    /* ?... */
 189
 190     char *virtual_user;         /* Virtualhost user */
 191     char *script_filename;
 192     int keep_alive;
 193     int user_home;              /* user_home request(VAR_ON/VAR_OFF) */
 194
 195     /*-Connection-*/
 196     int port;
 197     /*------------*/
 198
 199     /* file descriptors */
 200     int fd_file;
 201
 202     struct file_info *file_info;
 203     struct host *host_conf;
 204     struct header_values *headers;      /* headers response */
 205     struct request *next;
 206
 207     long loop;
 208     long bytes_to_send;
 209     off_t bytes_offset;
 210
 211     /* Plugin handlers */
 212     struct plugin *handled_by;
 213 };
 214
 215 struct header_values
 216 {
 217     int status;
 218     mk_pointer *status_p;
 219
 220     /* Length of the content to send */
 221     long content_length;
 222
 223     /* Private value, real length of the file requested */
 224     long real_length;
 225
 226     int cgi;
 227     int pconnections_left;
 228     int ranges[2];
 229     int transfer_encoding;
 230     int breakline;
 231
 232     time_t last_modified;
 233     mk_pointer content_type;
 234     char *location;
 235 };
 236
 237 struct request *mk_request_parse(struct client_request *cr);
 238 int mk_request_process(struct client_request *cr, struct request *s_request);
 239 mk_pointer mk_request_index(char *pathfile);
 240
 241
 242 /* Custom HTML Page for errors */
 243 mk_pointer *mk_request_set_default_page(char *title, mk_pointer message,
 244                                         char *signature);
 245
 246 int mk_request_header_process(struct request *sr);
 247 mk_pointer mk_request_header_find(struct header_toc *toc, int toc_len,
 248                                   char *request_body, mk_pointer header);
 249
 250 void mk_request_error(int http_status, struct client_request *cr,
 251                       struct request *sr);
 252
 253 struct request *mk_request_alloc();
 254 void mk_request_free_list(struct client_request *cr);
 255 void mk_request_free(struct request *sr);
 256
 257 struct client_request *mk_request_client_create(int socket);
 258 struct client_request *mk_request_client_get(int socket);
 259 void mk_request_client_remove(int socket);
 260
 261 void mk_request_init_error_msgs();
 262
 263 int mk_handler_read(int socket, struct client_request *cr);
 264 int mk_handler_write(int socket, struct client_request *cr);
 265
 266
 267 struct header_toc *mk_request_header_toc_create(int len);
 268 void mk_request_header_toc_parse(struct header_toc *toc, int toc_len,
 269                                  char *data, int len);
 270
 271 void mk_request_ka_next(struct client_request *cr);
 272 #endif