}
  }
}


#ifdef FOSSIL_ENABLE_JSON
/*
** Internal helper for cson_data_source_FILE_n().
*/
typedef struct CgiPostReadState_ {
    FILE * fh;
    unsigned int len;
    unsigned int pos;
} CgiPostReadState;

/*
** cson_data_source_f() impl which reads only up to
** a specified amount of data from its input FILE.
** state MUST be a full populated (CgiPostReadState*).
*/
static int cson_data_source_FILE_n( void * state,
                                    void * dest,
                                    unsigned int * n ){
    if( ! state || !dest || !n ) return cson_rc.ArgError;
    else {
      CgiPostReadState * st = (CgiPostReadState *)state;
      if( st->pos >= st->len ){
        *n = 0;
        return 0;
      }else if( !*n || ((st->pos + *n) > st->len) ){
        return cson_rc.RangeError;
      }else{
        unsigned int rsz = (unsigned int)fread( dest, 1, *n, st->fh );
        if( ! rsz ){
          *n = rsz;
          return feof(st->fh) ? 0 : cson_rc.IOError;
        }else{
          *n = rsz;
          st->pos += *n;
          return 0;
        }
      }
    }
}

/*
** Reads a JSON object from the first contentLen bytes of zIn.  On
** g.json.post is updated to hold the content. On error a
** FSL_JSON_E_INVALID_REQUEST response is output and fossil_exit() is
** called (in HTTP mode exit code 0 is used).
**
** If contentLen is 0 then the whole file is read.
*/
void cgi_parse_POST_JSON( FILE * zIn, unsigned int contentLen ){
  cson_value * jv = NULL;
  int rc;
  CgiPostReadState state;
  cson_parse_opt popt = cson_parse_opt_empty;
  cson_parse_info pinfo = cson_parse_info_empty;
  assert(g.json.gc.a && "json_bootstrap_early() was not called!");
  popt.maxDepth = 15;
  state.fh = zIn;
  state.len = contentLen;
  state.pos = 0;
  rc = cson_parse( &jv,
                   contentLen ? cson_data_source_FILE_n : cson_data_source_FILE,
                   contentLen ? (void *)&state : (void *)zIn, &popt, &pinfo );
  if(rc){
    goto invalidRequest;
  }else{
    json_gc_add( "POST.JSON", jv );
    g.json.post.v = jv;
    g.json.post.o = cson_value_get_object( jv );
    if( !g.json.post.o ){ /* we don't support non-Object (Array) requests */
      goto invalidRequest;
    }
  }
  return;
  invalidRequest:
  cgi_set_content_type(json_guess_content_type());
  if(0 != pinfo.errorCode){ /* fancy error message */
      char * msg = mprintf("JSON parse error at line %u, column %u, "
                           "byte offset %u: %s",
                           pinfo.line, pinfo.col, pinfo.length,
                           cson_rc_string(pinfo.errorCode));
      json_err( FSL_JSON_E_INVALID_REQUEST, msg, 1 );
      free(msg);
  }else if(jv && !g.json.post.o){
      json_err( FSL_JSON_E_INVALID_REQUEST,
                "Request envelope must be a JSON Object (not array).", 1 );
  }else{ /* generic error message */
      json_err( FSL_JSON_E_INVALID_REQUEST, NULL, 1 );
  }
  fossil_exit( g.isHTTP ? 0 : 1);

  if( len>0 && zType ){
    if( fossil_strcmp(zType, "application/x-fossil")==0 ){
      if( blob_read_from_cgi(&g.cgiIn, len)!=len ){
        malformed_request("CGI content-length mismatch");
      }
      blob_uncompress(&g.cgiIn, &g.cgiIn);
    }
#ifdef FOSSIL_ENABLE_JSON
    else if( noJson==0 && g.json.isJsonMode!=0
             && json_can_consume_content_type(zType)!=0 ){
      assert( !g.httpUseSSL );
      cgi_parse_POST_JSON(g.httpIn, (unsigned int)len);
      /*
       Potential TODOs:

       1) If parsing fails, immediately return an error response
       without dispatching the ostensibly-upcoming JSON API.
      */
      cgi_set_content_type(json_guess_content_type());
    }
#endif /* FOSSIL_ENABLE_JSON */
    else{
      if( blob_read_from_cgi(&g.cgiIn, len)!=len ){
        malformed_request("CGI content-length mismatch");
      }







    }
  }
}

/*
** Decode POST parameter information in the cgiIn content, if any.
*/