webu.h

/*
 *      webu.h
 *
 *      Include file for webu.c
 *
 *      This software is distributed under the GNU Public License Version 2
 *      See also the file 'COPYING'.
 *
 */
#ifndef _INCLUDE_WEBU_H_
#define _INCLUDE_WEBU_H_


/* Some defines of lengths for our buffers */
#define WEBUI_LEN_PARM 512          /* Parameters specified */
#define WEBUI_LEN_URLI 512          /* Maximum URL permitted */
#define WEBUI_LEN_RESP 1024         /* Initial response size */
#define WEBUI_MHD_OPTS 10           /* Maximum number of options permitted for MHD */
#define WEBUI_LEN_LNK  15           /* Maximum length for chars in strminfo */

enum WEBUI_CNCT{
  WEBUI_CNCT_CONTROL     = 0,
  WEBUI_CNCT_FULL        = 1,
  WEBUI_CNCT_SUB         = 2,
  WEBUI_CNCT_MOTION      = 3,
  WEBUI_CNCT_SOURCE      = 4,
  WEBUI_CNCT_STATIC      = 5,
  WEBUI_CNCT_UNKNOWN     = 99
};

struct webui_ctx {
    char *url;                   /* The URL sent from the client */
    char *uri_camid;            /* Parsed thread number from the url*/
    char *uri_cmd1;              /* Parsed command(action) from the url*/
    char *uri_cmd2;              /* Parsed command (set) from the url*/
    char *uri_parm1;             /* Parameter 1 for the command */
    char *uri_value1;            /* The value for parameter 1*/
    char *uri_parm2;             /* Parameter 2 for the command */
    char *uri_value2;            /* The value for parameter 2*/

    char *hostname;              /* Host name provided from header content*/
    char  hostproto[6];          /* Protocol for host http or https */
    char *clientip;              /* IP of the connecting client */
    char *auth_denied;          /* Denied access response to user*/
    char *auth_opaque;          /* Opaque string for digest authentication*/
    char *auth_realm;           /* Realm string for digest authentication*/
    char *auth_user;            /* Parsed user from config authentication string*/
    char *auth_pass;            /* Parsed password from config authentication string*/
    int  authenticated;         /* Boolean for whether authentication has been passed */

    int   cam_count;            /* Count of the number of cameras*/
    int   cam_threads;          /* Count of the number of camera threads running*/
    char *lang;                 /* Two character abbreviation for locale language*/
    char *lang_full;            /* Five character abbreviation for language-country*/
    int   thread_nbr;           /* Thread number provided from the uri */
    char *text_eol;             /* End of line for text interface either <br> or "" */
    enum WEBUI_CNCT cnct_type;  /* Type of connection we are processing */

    char            *resp_page;        /* The response that will be sent */
    size_t          resp_size;         /* The allocated size of the response */
    size_t          resp_used;         /* The amount of the response page used */
    uint64_t        stream_pos;        /* Stream position of sent image */
    int             stream_fps;        /* Stream rate per second */
    struct timeval  time_last;         /* Keep track of processing time for stream thread*/
    int             mhd_first;         /* Boolean for whether it is the first connection*/

    struct MHD_Connection  *connection; /* The MHD connection value from the client */
    struct context        **cntlst;     /* The context list of all cameras */
    struct context         *cnt;        /* The context information for the camera requested */

};

void webu_start(struct context **cnt);
void webu_stop(struct context **cnt);
void webu_process_action(struct webui_ctx *webui);
int webu_process_config(struct webui_ctx *webui);
int webu_process_track(struct webui_ctx *webui);
void webu_write(struct webui_ctx *webui, const char *buf);

#endif