web_application.c

 
#include <string.h>
#include "http_server.h"
#include "http_defs.h"
#include "web_application_content.c"
 
struct fs_file file_handle;
 
 
/*
 * TODO: reorganise this it works but the structure is quite misleading.
 */
 
/***============================================================================================================================
 * Private functions definitions
 * These functions are only accessible from within the file's scope
 *=============================================================================================================================*/
 
static err_t _web_application_open(struct fs_file *file, const char *name) {
 
  const struct fsdata_file *f;
 
  if ((file == NULL) || (name == NULL)) {
    return ERR_ARG;
  }
 
  for (f = FS_ROOT; f != NULL; f = f->next) {
    if (!strcmp(name, (const char *)f->name)) {
      file->data = (const char *)f->data;
      file->len = f->len;
      file->index = f->len;
      file->pextension = NULL;
      file->flags = f->flags;
      return ERR_OK;
    }
  }
 
  /* file not found */
  return ERR_VAL;
}
 
 
static void _web_application_router(http_request_s *req) {
 
    struct fs_file *file = NULL;
    uint16_t uri_len     = strlen(req->uri);
 
    err_t err;
 
    req->res->is_static =  HTTP_RESPONSE_IS_STATIC;
 
    if(uri_len > 0 &&  req->uri[uri_len - 1] == '/'){
        char dafault_uri[uri_len + strlen("index.html")];
        memmove(dafault_uri, req->uri, uri_len);
        memmove(dafault_uri + uri_len, "index.html", strlen("index.html"));
        dafault_uri[uri_len + strlen("index.html")] = 0;
        err = _web_application_open(&file_handle, dafault_uri);
    }else{
        err = _web_application_open(&file_handle, req->uri);
    }
 
    if(err == ERR_OK){
        file = &file_handle;
        req->res->data_ptr = (char*)file->data;
        req->res->data_len = (uint32_t)file->len;
    }else{
        req->res->data_ptr = http_status_codes_str[HTTP_STATUS_CODE_404]; //TODO: point the user to a proper 404 page or point him back to server's index ?
        req->res->data_len = strlen(req->res->data_ptr);
    }
 
}
 
 
/***============================================================================================================================
 * Public functions definitions
 * These functions can be accessed outside of the file's scope
 * @see DMX512_chaser_pool.h for declarations
 *=============================================================================================================================*/
 
void web_application_start(void){
    http_server_init(80, _web_application_router);
}