http_req.h

00001 /*
00002  * The MIT License (MIT)
00003  *
00004  * Copyright (c) 2015 by Sergey Fetisov <fsenok@gmail.com>
00005  * 
00006  * Permission is hereby granted, free of charge, to any person obtaining a copy
00007  * of this software and associated documentation files (the "Software"), to deal
00008  * in the Software without restriction, including without limitation the rights
00009  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00010  * copies of the Software, and to permit persons to whom the Software is
00011  * furnished to do so, subject to the following conditions:
00012  * 
00013  * The above copyright notice and this permission notice shall be included in all
00014  * copies or substantial portions of the Software.
00015  * 
00016  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00017  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00018  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00019  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00020  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00021  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
00022  * SOFTWARE.
00023  */
00024 
00025 /*
00026  * version: 1.0 demo (7.02.2015)
00027  * brief:   part of tiny http ipv4 server using lwip (pcb)
00028  */
00029 
00030 #ifndef HTTP_REQ_H
00031 #define HTTP_REQ_H
00032 
00033 #include <stdio.h>
00034 #include <stdbool.h>
00035 #include <stdint.h>
00036 #include <string.h>
00037 #include <stdlib.h>
00038 
00039 #ifdef __cplusplus
00040 extern "C" {
00041 #endif
00042 
00043 #include "cparser.h"
00044 
00045 //#define HTTP_REQ_MAX_SIZE   512
00046 #define HTTP_REQ_MAX_PARAMS 32
00047 
00048 typedef enum http_method
00049 {
00050     METHOD_NONE,
00051     METHOD_GET,
00052     METHOD_POST,
00053     METHOD_HEAD,
00054     METHOD_PUT,
00055     METHOD_CONNECT,
00056     METHOD_OPTIONS,
00057     METHOD_DELETE,
00058     METHOD_TRACE,
00059     METHOD_PATCH
00060 } http_mt_t;
00061 
00062 typedef enum http_conn_type
00063 {
00064     CT_NONE,
00065     CT_CLOSE,
00066     CT_KEEP_ALIVE
00067 } http_ct_t;
00068 
00069 extern const char MIME_TEXT_HTML[];   // text/html
00070 extern const char MIME_TEXT_HTML[];   // text/javascript
00071 extern const char MIME_TEXT_PLAIN[];  // text/plain
00072 extern const char MIME_TEXT_XML[];    // text/xml
00073 extern const char MIME_TEXT_CSS[];    // text/css
00074 extern const char MIME_IMAGE_GIF[];   // image/gif
00075 extern const char MIME_IMAGE_JPEG[];  // image/jpeg
00076 extern const char MIME_IMAGE_PJPEG[]; // image/pjpeg
00077 extern const char MIME_IMAGE_PNG[];   // image/png
00078 extern const char MIME_IMAGE_SVG[];   // image/svg+xml
00079 extern const char MIME_IMAGE_TIFF[];  // image/tiff
00080 extern const char MIME_IMAGE_ICON[];  // image/vnd.microsoft.icon
00081 extern const char MIME_IMAGE_WBMP[];  // image/vnd.wap.wbmp
00082 
00083 typedef struct http_req
00084 {
00085     http_mt_t  method;                      // GET
00086     char      *uri;                         //      /path/resource
00087     int        num_params;                  //                      2
00088     char      *params[HTTP_REQ_MAX_PARAMS]; //                      param1, param2
00089     char      *values[HTTP_REQ_MAX_PARAMS]; //                      value1, value2
00090     char      *ver;                         //                                      HTTP/1.1
00091     char      *host;                        // Host:            [wikipedia.org]
00092     char      *user_agent;                  // User-Agent:      [Mozilla/5.0]
00093     char      *mime;                        // Content-Type:    [multipart/form-data; boundary="Asrf456BGe4h"]
00094     int        cont_len;                    // Content-Length:  [123]
00095     char      *accept;                      // Accept:          [text/html]
00096     char      *accept_lang;                 // Accept-Language: [en-US;q=0.5,en;q=0.3]
00097     char      *accept_enc;                  // Accept-Encoding: [gzip, deflate]
00098     char      *cookie;                      // Cookie:          [Cookie data]
00099     http_ct_t  conn_type;                   // Connection:      [keep-alive]
00100     int        keep_alive;                  // Keep-Alive:      [300]
00101 } http_req_t;
00102 
00103 typedef struct http_resp
00104 {
00105     int         code;                   // HTTP/1.1 [200] OK
00106     const char *server;                 // Server: [lrndis]
00107     const char *cont_lang;              // Content-Language: [ru]
00108     const char *mime;                   // Content-Type: [text/html; charset=utf-8]
00109     int         cont_len;               // Content-Length: [1234]
00110     http_ct_t   conn_type;              // Connection: [close]
00111 } http_resp_t;
00112 
00113 // HTTP REQUEST BUFFER
00114 
00115 typedef enum http_reqb_state
00116 {
00117     REQB_UNFINISHED,
00118     REQB_FINISHED,
00119     REQB_SYNT_ERROR,
00120     REQB_REQ_TO_BIG
00121 } http_reqb_state_t;
00122 
00123 typedef struct http_reqb
00124 {
00125     http_req_t req;
00126     http_reqb_state_t state;
00127     //char buff[HTTP_REQ_MAX_SIZE];
00128     char *buff;
00129     int bsize;
00130     int size;
00131     struct
00132     {
00133         int pos;
00134         int state;
00135     } parsing;
00136 } http_reqb_t;
00137 
00138 void http_reqb_init(http_reqb_t *reqb, void *buff, int size);
00139 int  http_reqb_avail(const http_reqb_t *reqb);
00140 void http_reqb_push(http_reqb_t *rb, const void *data, int size);
00141 int  http_resp_len(const http_resp_t *resp);
00142 int  http_resp_str(const http_resp_t *resp, char *str, int size);
00143 
00144 #ifdef __cplusplus
00145 }
00146 #endif
00147 
00148 #endif