bt-67xx_universal_hw/modules/HTTP_Server/http_server.c

#ifdef HARDWARE_BT6706

#include "lwip/opt.h"
#include "lwip/arch.h"
#include "lwip/api.h"
#include "lwip/tcp.h"

#include "http_server.h"
#include "web_params_api.h"
#include "parameters.h"
#include "urlcode.h"
#include "trap_params.h"
#include "fsdata.c"
#include "settings_api.h"
#include "netconf.h"
#include "common_config.h"
#include "testing.h"
#include "rtc.h"
#include "rng.h"
#include "megatec.h"
#include "log.h"
#include "hal.h"
#include "sntp_api.h"

#ifdef PRINTF_STDLIB
#include <stdio.h>
#endif
#ifdef PRINTF_CUSTOM
#include "tinystdio.h"
#endif
#include <string.h>
#include <stdlib.h>

#include "FreeRTOS.h"
#include "task.h"
#include "fr_timers.h"

static int fs_open(char *name, struct fs_file *file);
static err_t http_sent(void *arg, struct tcp_pcb *pcb, u16_t len);
static err_t http_sent_history(void *arg, struct tcp_pcb *pcb, u16_t len);
static err_t http_sent_log(void *arg, struct tcp_pcb *pcb, u16_t len);
static void http_sent_log_err(void * arg, err_t err);
static void send_data(struct tcp_pcb *pcb, struct http_state *hs);
static void HTTP_GetUserCookie(uint8_t user_id, char *str, uint8_t *len);
static uint32_t Parse_Content_Length(char *data, uint32_t len);
static void HTTP_SetUserCookie(char *str, uint8_t user_id);
static void HTTP_UpdateUserLoginTime(uint8_t user_id);
static void HTTP_ForceUserLogout(uint8_t user_id);
void LogoutTimerCallback(TimerHandle_t pxTimer);
void LoginTimerCallback(TimerHandle_t pxTimer);
int HTTP_ChangeUserPwd(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut);
char* send_file(char *filename, char *pnonmatch,  struct fs_file *file, uint16_t *Len);
static uint32_t Parse_Header(char *data, uint32_t len, const char *field, uint32_t flen, char *value);
bool GetFileName(char *inStr, char *fileName, uint8_t *fileNameLen);

REQ_TYPE_SEND_t HTTPTypeAnswer = COMMON_ANSWER;

#define SEND_BUF_MAX_LEN   2000
#define RECIVE_BUF_MAX_LEN   1500
char sendBuf[SEND_BUF_MAX_LEN];
uint16_t sendBufLoadLen = 0;

uint16_t printLen = 0;

char receiveBuf[RECIVE_BUF_MAX_LEN];
uint16_t receivedBufLen = 0;

#define MAX_POST_REQ_LEN 256
char post_req_data[MAX_POST_REQ_LEN];
uint32_t post_data_count = 0;
uint32_t log_post_reqn;

/* Logout timeout, 30 minutes */
#define WEB_LOGOUT_TIME  configTICK_RATE_HZ*60*30

/* Max user active sessions count */
#define WEB_USER_MAX_SESSION_COUNT  5

struct {
    //auth_session_t session[WEB_USER_MAX_SESSION_COUNT];
    char cookie[MAX_WEB_COOKIE_LEN];
    TimerHandle_t LogoutTimer;
} users[MAX_WEB_USERS];

TimerHandle_t RepeatLoginTimer;

/* Repeat Login timeout, 1 minutes */
#define REPEAT_LOGIN_TIME  configTICK_RATE_HZ*60*1

uint8_t cnt_err_psw = 0;

bool Authenticated = false;

/* Level of currently logged-in user */
uint8_t seclevel = 0xFF;

/* Max HTTP file name length including "/" */
#define MAX_FILENAME_LEN    32
/* Max HTTP Etag field length */
#define MAX_ETAG_LEN        48
static const char If_None_Match[] = "If-None-Match: ";
static const char Etag[] = "ETag: ";

static volatile uint32_t DataFlag2=0;
static volatile uint32_t DataFlag=0;
static volatile uint32_t size =0;
static uint32_t TotalReceived=0;
static volatile uint32_t TotalData=0;

static uint32_t ContentLengthOffset =0, BrowserFlag=0;

static const char Content_Length[17] =
/* Content Length */
{0x43, 0x6f, 0x6e, 0x74, 0x65, 0x6e, 0x74, 0x2d, 0x4c, 0x65, 0x6e, 0x67,0x74, 0x68, 0x3a, 0x20, };

const char HTTP_304_NOT_MODIFIED[] = "HTTP/1.1 304 Not Modified\r\n\r\n";
const char HTTP_200_OK[] = "HTTP/1.1 200 OK\r\n\r\n";
/* utf-8 marker to support MS Excel */
const char UTF8_BOM[] = {0xEF, 0xBB, 0xBF, 0x00};

unsigned long log_ptr = 0;
unsigned long log_size = 0;
bool fLogTransInprog = false;

/**
  * @brief  Общая структура настроек
  */
extern SETTINGS_t sSettings;

char CookieBuf[51];
char *CookiePtr = NULL;
char name[MAX_WEB_COOKIE_LEN];
char id[MAX_WEB_COOKIE_LEN];
uint8_t nameLen = 0, idLen = 0;
uint8_t user_id; // Id of currently logged-in user
struct fs_file file = {0, 0};

/**
  * @brief  closes tcp connection
  * @param  pcb: pointer to a tcp_pcb struct
  * @param  hs: pointer to a http_state struct
  * @retval
  */
static void close_conn(struct tcp_pcb *pcb, struct http_state *hs)
{
  tcp_arg(pcb, NULL);
  tcp_sent(pcb, NULL);
  tcp_recv(pcb, NULL);
  mem_free(hs);
  tcp_close(pcb);
}

/**
  * @brief callback function for handling TCP HTTP traffic
  * @param arg: pointer to an argument structure to be passed to callback function
  * @param pcb: pointer to a tcp_pcb structure
  * @param p: pointer to a packet buffer
  * @param err: LwIP error code
  * @retval err
  */
static err_t http_recv(void *arg, struct tcp_pcb *pcb,  struct pbuf *p, err_t err)
{
	  char *data;
	  struct http_state *hs;
	  struct fs_file file = {0, 0};
	  char buf[150];

	  hs = arg;

	  if (err == ERR_OK && p != NULL)
	  {
	    tcp_recved(pcb, p->tot_len);

		if (hs->file == NULL)
	    {
	      data = p->payload;
		  receivedBufLen = p->tot_len;
		  memcpy(receiveBuf, p->payload , receivedBufLen);
		  /* Cut received string */
		  receiveBuf[receivedBufLen] = '\0';

		  Cockie();
		  getAuthenticatedState();

		  if (!Authenticated)
		  {
			  hs->file = AuthenticatedFalseRoutine(&sendBufLoadLen);
			  hs->left = sendBufLoadLen;
			  send_data(pcb, hs);
			  tcp_sent(pcb, http_sent);
		  }
		  else
		  {
			  HTTPTypeAnswer = COMMON_ANSWER;
			  hs->file = AuthenticatedTrueRoutine(&sendBufLoadLen);
			  hs->left = sendBufLoadLen;
			  send_data(pcb, hs);
			  switch(HTTPTypeAnswer){
			  case HISTORY_ANSWER:
				  while(sendBufLoadLen != 0){
					  hs->file = HTTP_SendLog(&sendBufLoadLen);
					  hs->left = sendBufLoadLen;
					  if(sendBufLoadLen == 0)
						  break;
					  send_data(pcb, hs);
				  }
				  break;
			  case UPS_HISTORY_ANSWER:
				  while(sendBufLoadLen != 0){
					  hs->file = HTTP_SendHistory(&sendBufLoadLen);
					  hs->left = sendBufLoadLen;
					  if(sendBufLoadLen == 0)
						  break;
					  send_data(pcb, hs);
				  }
			  	  break;
			  }
			  tcp_sent(pcb, http_sent);
		  }

	      // На производстве
		  if (strncmp(data, "GET /setProdate.cgi", 19) == 0 && strncmp(sSettings.sFlags.testState, "T2OK", 4) == 0)
		  {
	        HTTP_Prodate(receiveBuf, sendBuf, receivedBufLen, &sendBufLoadLen);

			hs->file = sendBuf;
	        hs->left = sendBufLoadLen;
			send_data(pcb, hs);
			tcp_sent(pcb, http_sent);
		  }
		}
	    pbuf_free(p);
	    close_conn(pcb,hs);
	  }
	  if (err == ERR_OK && p == NULL)
	  {
	    close_conn(pcb, hs);
	  }
	  return ERR_OK;
}


/**
  * @brief Error callback for log file transfer
  */
static void http_sent_log_err(void * arg, err_t err)
{
    (void)err;
    (void)arg;
    /* Clear file transfer in progress flag */
    fLogTransInprog = false;
}

/**
  * @brief  callback function for handling connection errors
  * @param  arg: pointer to an argument to be passed to callback function
  * @param  err: LwIP error code   
  * @retval none
  */
static void conn_err(void *arg, err_t err)
{
  struct http_state *hs;

  hs = arg;
  mem_free(hs);
}

/**
  * @brief callback function called after a successfull TCP data packet transmission  
  * @param arg: pointer to an argument to be passed to callback function
  * @param pcb: pointer on tcp_pcb structure
  * @param len
  * @retval err : LwIP error code
  */
static err_t http_sent(void *arg, struct tcp_pcb *pcb, u16_t len)
{
  struct http_state *hs;

  hs = arg;

  if (hs->left > 0)
  {
    send_data(pcb, hs);
  }
  else
  {
    close_conn(pcb, hs);      
  }
  return ERR_OK;
}

/**
  * @brief sends data found in  member "file" of a http_state struct
  * @param pcb: pointer to a tcp_pcb struct
  * @param hs: pointer to a http_state struct
  * @retval none
  */
static void send_data(struct tcp_pcb *pcb, struct http_state *hs)
{
  err_t err;
  u16_t len;

  /* We cannot send more data than space available in the send
     buffer */
  if (tcp_sndbuf(pcb) < hs->left)
  {
    len = tcp_sndbuf(pcb);
  }
  else
  {
    len = hs->left;
  }
  err = tcp_write(pcb, hs->file, len, 0);
  if (err == ERR_OK)
  {
    hs->file += len;
    hs->left -= len;
  }
}

/**
  * @brief tcp poll callback function
  * @param arg: pointer to an argument to be passed to callback function
  * @param pcb: pointer on tcp_pcb structure
  * @retval err_t
  */
static err_t http_poll(void *arg, struct tcp_pcb *pcb)
{
  if (arg == NULL)
  {
    tcp_close(pcb);
  }
  else
  {
    send_data(pcb, (struct http_state *)arg);
  }
  return ERR_OK;
}

/**
  * @brief  callback function on TCP connection setup ( on port 80)
  * @param  arg: pointer to an argument structure to be passed to callback function
  * @param  pcb: pointer to a tcp_pcb structure
  * &param  err: Lwip stack error code
  * @retval err
  */
static err_t http_accept(void *arg, struct tcp_pcb *pcb, err_t err)
{
  struct http_state *hs;

  /* Allocate memory for the structure that holds the state of the connection */
  hs = mem_malloc(sizeof(struct http_state));

  if (hs == NULL)
  {
    return ERR_MEM;
  }

  /* Initialize the structure. */
  hs->file = NULL;
  hs->left = 0;

  /* Tell TCP that this is the structure we wish to be passed for our
     callbacks. */
  tcp_arg(pcb, hs);

  /* Tell TCP that we wish to be informed of incoming data by a call
     to the http_recv() function. */
  tcp_recv(pcb, http_recv);

  tcp_err(pcb, conn_err);

  tcp_poll(pcb, http_poll, 10);
  return ERR_OK;
}

/**
  * @brief  Opens a file defined in fsdata.c ROM filesystem 
  * @param  name : pointer to a file name
  * @param  file : pointer to a fs_file structure  
  * @retval  1 if success, 0 if fail
  */
static int fs_open(char *name, struct fs_file *file)
{
  struct fsdata_file_noconst *f;

  for (f = (struct fsdata_file_noconst *)FS_ROOT; f != NULL; f = (struct fsdata_file_noconst *)f->next)
  {
    if (!strcmp(name, f->name))
    {
      file->data = f->data;
      file->len = f->len;
      return 1;
    }
  }
  return 0;
}

/**
  * @brief  Initialize the HTTP server (start its thread) 
  * @param  none
  * @retval None
  */
void HTTP_Init()
{
	char buf[MAX_WEB_COOKIE_LEN];
	uint8_t user_id;

    struct tcp_pcb *pcb;

    pcb = tcp_new();
    tcp_bind(pcb, IP_ADDR_ANY, 80);
    pcb = tcp_listen(pcb);
    tcp_accept(pcb, http_accept);

    for (user_id = 0; user_id < MAX_WEB_USERS; user_id++) {
		/* Flush user cookie by random value */
		sprintf(buf, "%X", (unsigned int)GetRandomNumber());
		HTTP_SetUserCookie(buf, user_id);

		/* Create user logout timers */
		users[user_id].LogoutTimer =
				xTimerCreate("LogoutTmr", WEB_LOGOUT_TIME, pdFALSE, ( void * ) user_id, LogoutTimerCallback);
	  }
    RepeatLoginTimer = xTimerCreate("LoginTmr", REPEAT_LOGIN_TIME, pdFALSE, ( void * ) 0, LoginTimerCallback);

}

/**
  * @brief  
  * @retval None
  */
int HTTP_SettingsPage(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
  char tempStr[30];
  strncpy(tempStr, bufIn, 30);
  
  /* В запросе нет параметров, нужно формировать JSON ответ */
  if (strpbrk(tempStr,"?") == 0)
  {
	memset(bufOut, 0, SEND_BUF_MAX_LEN);
	HTTP_GetSettings(bufOut);
    *lenBufOut = strlen(bufOut);
	return SEND_REQUIRED_YES;
  }
  /* В запросе есть параметры, нужно парсить и сохранять настройки */
  else
  {
	//HTTP_SetSettings(bufIn, lenBufIn);
    return SEND_REQUIRED_NO;
  }
}

/**
  * @brief  
  * @retval None
  */
int HTTP_InfoPage(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
  char tempStr[30];
  strncpy(tempStr, bufIn, 30);
  
  /* В запросе нет параметров, нужно формировать JSON ответ */
  if (strpbrk(tempStr,"?") == 0)
  {
	memset(bufOut, 0, SEND_BUF_MAX_LEN);
	
	HTTP_GetInfo(bufOut);
		
    *lenBufOut = strlen(bufOut);
	
	return SEND_REQUIRED_YES;
  }
  /* В запросе есть параметры, нужно парсить и сохранять настройки */
  else
  {
	//HTTP_SetInfo(bufIn, lenBufIn);
	return SEND_REQUIRED_NO;
/*	
	HTTP_SetSettings(bufIn, lenBufIn);
    return SEND_REQUIRED_NO;
*/	
  }
}  

int HTTP_HistoryPage(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
  uint8_t i, valueLen = 0;
  char value[20];
  uint32_t nbytes = 0;

  (void)lenBufIn;

  memset(bufOut, 0, FILE_BUF_MAX_LEN);

  ClearParamString(bufIn);

  memset(value, 0, 20);
  GetParamValue(bufIn, "page=", value, &valueLen);

  if (strcmp(value, "all") == 0)
  {
	  if (!LOG_IsInit()) {
		  return SEND_REQUIRED_NO;
	  }

      if (fLogTransInprog == false) {

        // Send log as raw data
        log_ptr = 0;

        log_size = History_GetTotalSTRCount() * STRING_SIZE_HISTORY + sizeof(UTF8_BOM)-1;
        sprintf(bufOut, "HTTP/1.1 200 OK\r\nContent-Length:%lu\r\n\r\n%s", log_size, UTF8_BOM);

        *lenBufOut = strlen(bufOut);

        // Set file transfer in progress flag
        fLogTransInprog = true;

        return SEND_REQUIRED_FILE;
     }
     else {
          // We send nothing if file transfer already in progress
          return SEND_REQUIRED_NO;
     }
  }
  else {
	  if (!LOG_IsInit()) {
		  return SEND_REQUIRED_NO;
	  }
	  else {
		  HTTP_GetHistoryPage(bufOut, atoi(value));
		  *lenBufOut = strlen(bufOut);

		  return SEND_REQUIRED_YES;
	  }
  }
}

int HTTP_UpsHistoryPage(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
  uint8_t i, valueLen = 0;
  char value[20];
  uint32_t nbytes = 0;

  (void)lenBufIn;

  memset(bufOut, 0, FILE_BUF_MAX_LEN);

  ClearParamString(bufIn);

  memset(value, 0, 20);
  GetParamValue(bufIn, "page=", value, &valueLen);

  if (strcmp(value, "all") == 0)
  {
	  if (!LOG_IsInit()) {
		  return SEND_REQUIRED_NO;
	  }

      if (fLogTransInprog == false) {

        // Send log as raw data
        log_ptr = 0;

        log_size = LOG_GetTotalSTRCount() * STRING_SIZE + sizeof(UTF8_BOM)-1;
        sprintf(bufOut, "HTTP/1.1 200 OK\r\nContent-Length:%lu\r\n\r\n%s", log_size, UTF8_BOM);

        *lenBufOut = strlen(bufOut);

        // Set file transfer in progress flag
        fLogTransInprog = true;

        return SEND_REQUIRED_FILE;
     }
     else {
          // We send nothing if file transfer already in progress
          return SEND_REQUIRED_NO;
     }
  }
  else {
	  if (!LOG_IsInit()) {
		  return SEND_REQUIRED_NO;
	  }
	  else {
		  HTTP_GetUpsHistoryPage(bufOut, atoi(value));
		  *lenBufOut = strlen(bufOut);

		  return SEND_REQUIRED_YES;
	  }
  }
}
  
/**
  * @brief  Установка даты производства
  */
// TODO Убрать заглушку!
void HTTP_Prodate(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
  uint8_t valueLen = 0;
  char value[20];
  
  memset(bufOut, 0, SEND_BUF_MAX_LEN);
  
  ClearParamString(bufIn);
  
  memset(value, 0, 20);
  GetParamValue(bufIn, "prodate=", value, &valueLen);
  /*
  printf("Prodate: ");
  printf(value);
  printf("\r\n");
  */
  
  /* Устанавливаем дату производства */
  SETTINGS_SetProDate(value, valueLen);
  
  /* Пока отправляем true */
  strcpy(bufOut, "HTTP/1.0 200 OK\r\nContent-Type:text/html\r\n\r\nTrue");
  *lenBufOut = strlen(bufOut);
  
  TEST_SetServerFlag();
}

/**
  * @brief  
  * @retval None
  */
void HTTP_SetSettings(char *buf, uint16_t lenBuf)
{
  uint8_t valueLen = 0;
  const uint8_t len = MAX_WEB_PARAM_LEN;
  char value[MAX_WEB_PARAM_LEN];
  char str[MAX_WEB_PARAM_LEN];

  //printf(buf);
  
  //ClearParamString(buf);
  
  memset(value, 0, len);
  memset(str, 0, MAX_WEB_PARAM_LEN);
  
  /* SNMP */
  GetParamValue(buf, "read_community=", value, &valueLen);
  SetReadCommunity(value);
  memset(value, 0, len);
  
  GetParamValue(buf, "write_community=", value, &valueLen);
  SetWriteCommunity(value);
  memset(value, 0, len);
      
  GetParamValue(buf, "managerIP=", value, &valueLen);
  SetManagerIp(value);
  memset(value, 0, len);

  GetParamValue(buf, "managerIP2=", value, &valueLen);
  SetManagerIp2(value);
  memset(value, 0, len);

  GetParamValue(buf, "managerIP3=", value, &valueLen);
  SetManagerIp3(value);
  memset(value, 0, len);
  
  GetParamValue(buf, "managerIP4=", value, &valueLen);
  SetManagerIp4(value);
  memset(value, 0, len);

  GetParamValue(buf, "managerIP5=", value, &valueLen);
  SetManagerIp5(value);
  memset(value, 0, len);

  /* Сетевые параметры */
  GetParamValue(buf, "dhcp=", value, &valueLen);
  SetDhcpStateStr(value);
  
  if (strncmp(value, "on", 2) != 0)  // Если dhcp off устанавливаем параметры
    {
    memset(value, 0, len);

    GetParamValue(buf, "ipaddr=", value, &valueLen);
    SetIPStr(value);
    memset(value, 0, len);
  
    GetParamValue(buf, "gw=", value, &valueLen);
    SetGatewayStr(value);
    memset(value, 0, len);
  
    GetParamValue(buf, "mask=", value, &valueLen);
    SetMaskStr(value);
    memset(value, 0, len);
  }
  memset(value, 0, len);

#ifdef HARDWARE_BT6706
  /* Сетевые параметры */
  GetParamValue(buf, "tn_enabled=", value, &valueLen);
  SetTelnetEnableStateStr(value);
	if (strncmp(value, "on", 2) == 0)
	{
		memset(value, 0, len);

		GetParamValue(buf, "tn_port=", value, &valueLen);
		SetTelnetPortStr(value);
		memset(value, 0, len);
	}
	memset(value, 0, len);
#endif

#ifdef HARDWARE_BT6702
  GetParamValue(buf, "swauth=", value, &valueLen);
  SetAuthEnableStateStr(value);

  if (strncmp(value, "on", 2) == 0){
		/* параметры RADIUS*/
	  memset(value, 0, len);
		GetParamValue(buf, "rs_enabled=", value, &valueLen);
		SetRDSEnableStateStr(value);

		if (strncmp(value, "on", 2) == 0)  // Если raddius off устанавливаем параметры
		{
			memset(value, 0, len);
			GetParamValue(buf, "rs_server=", value, &valueLen);
			SetRDSIpStr(value);
			memset(value, 0, len);

			GetParamValue(buf, "rs_port=", value, &valueLen);
			SetRDSPortStr(value);
			memset(value, 0, len);

			GetParamValue(buf, "rs_pwd=", value, &valueLen);
			SetRDSPasswordkStr(value);
			memset(value, 0, len);

			GetParamValue(buf, "rs_key=", value, &valueLen);
			SetRDSKeyAccesstStr(value);
			memset(value, 0, len);
		}
  }
  memset(value, 0, len);
#endif

  // Параметры реле и сухих контактов
  GetParamValue(buf, "di1=", value, &valueLen);
  SetDINTypeActStr(value, 0);
  memset(value, 0, len);

  GetParamValue(buf, "ro1=", value, &valueLen);
  SetROTypeActStr(value, 0);
  memset(value, 0, len);

  GetParamValue(buf, "ro2=", value, &valueLen);
  SetROTypeActStr(value, 1);
  memset(value, 0, len);

  GetParamValue(buf, "ro3=", value, &valueLen);
	SetROTypeActStr(value, 2);
	memset(value, 0, len);

  GetParamValue(buf, "utc=", value, &valueLen);
  SetSntpTimeZoneStr(value);
  memset(value, 0, len);
  
  // Параметры даты и времени
  GetParamValue(buf, "ntp=", value, &valueLen);

  if (strncmp(value, "1", 1) == 0)  // Если ntp on устанавливаем параметры
  {
	bool old_sntp = false;
	bool enable_old_sntp = sSettings.sSNTP.sntpEnable;
    memset(str, 0, len);
    GetParamValue(buf, "ntpservip=", str, &valueLen);
    if(strncmp(str, sSettings.sSNTP.ip, valueLen))
    	old_sntp = true;
    SetSntpServerIpStr(str);   
    SetSntpStateStr(value);
    if(sSettings.sSNTP.sntpEnable != enable_old_sntp)
    	old_sntp = true;
	if(old_sntp){
		SNTP_Init();
		//vTaskDelay(7000);
		SNTP_Poll();
	}
    memset(value, 0, len);
    memset(str, 0, len);
  }
  else if (strncmp(value, "0", 1) == 0){
	  SetSntpStateStr(value);
	  memset(value, 0, len);
      GetParamValue(buf, "date=", value, &valueLen);
      SetDateStr(value);
      memset(value, 0, len);
      GetParamValue(buf, "time=", value, &valueLen);
      memset(str, 0, len);
      url_decode(str, sizeof(str), value);
      SetTimeStr(str);
      memset(value, 0, len);
      memset(str, 0, len);
  }
  
  /* Если параметры WEB изменились выставляем флаг, сохраняем настройки и перезагружаемся */
  if (GetStateWebReinit() == true)
  {	
	SetWebReinitFlag(true);
	HTTP_SaveSettings();
    /* Блокируем управление ключем на тау секунд*/
    //IO_KeyBlockOn();
    vTaskDelay(1010);
    Reboot();
  }	
  
  HTTP_SaveSettings();
}

/**
  * @brief  
  * @retval None
  */
void HTTP_SetInfo(char *buf, uint16_t lenBuf)
{
  uint8_t valueLen = 0;
  const uint8_t len = 110;
  char value[110];
  char str[110];

 // ClearParamString(buf);
  
  memset(value, 0, len);
  
  /* Владелец */
  GetParamValue(buf, "owner=", value, &valueLen);
  url_decode(str, sizeof(str), value);
  SetOwner(str);
  memset(value, 0, len);
  
  /* Владелец */
  GetParamValue(buf, "sysLocation=", value, &valueLen);
  url_decode(str, sizeof(str), value);
  SetLocation(str);
  memset(value, 0, len);
  
  /* Комментарий */
  GetParamValue(buf, "comment=", value, &valueLen);
  url_decode(str, sizeof(str), value);
  SetComment(str);
  memset(value, 0, len);
 
  HTTP_SaveSettings();
}

/**
  * @brief  Запуск/останов теста UPS
  */
void HTTP_UPSTest(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
	  uint8_t valueLen = 0;
	  char tempValue[20];
	  char tempValue2[20];
	  int8_t res = 0;
	  char log_string[50];

	  memset(tempValue, 0, 20);
	  memset(tempValue2, 0, 20);
	  memset(log_string, 0,50);

	  strcpy(bufOut, HTTP_200_OK);

	  GetParamValue(bufIn, "func=", tempValue, &valueLen);
	  if (strcmp(tempValue, "stop") == 0){
		  res = ups_metac_service_pdu(ups_cancel_test);
		  if(res == 1 || res == 0){
			  strcat(bufOut, "Тест остановлен!");
			  strcpy(log_string, name_login);
			  strcat(log_string, " (Останов)");
			  log_event_data(LOG_TEST_UPS, log_string);
		  }
		  if(res == -1)
			  strcat(bufOut, "Тест не удалось остановить!");
		  *lenBufOut = strlen(bufOut);
	  }
	  else if (strcmp(tempValue, "discharge") == 0){
		  res = ups_metac_service_pdu(ups_test_low_bat);
		  if(res == 1 || res == 0){
			  strcat(bufOut, "Тест запущен!");
			  strcpy(log_string, name_login);
			  strcat(log_string, " (Запущен)");
			  log_event_data(LOG_TEST_UPS, log_string);
		  }
		  if(res == -1)
			  strcat(bufOut, "Тест не удалось запустить!");
		  *lenBufOut = strlen(bufOut);
	  }
	  else if (strncmp(tempValue, "time", 6) == 0){
		  GetParamValue(bufIn, "=", tempValue2, &valueLen);
		  TimeParam = atoi(tempValue2);
		  res = ups_metac_service_pdu(ups_test_time);
		  if(res == 1 || res == 0){
			  strcat(bufOut, "Тест запущен!");
			  strcpy(log_string, name_login);
			  strcat(log_string, " (Запущен)");
			  log_event_data(LOG_TEST_UPS, log_string);
		  }
		  if(res == -1)
			  strcat(bufOut, "Тест не удалось запустить!");
		  *lenBufOut = strlen(bufOut);
	  }
}

/**
  * @brief  Выклюение UPS
  */
void HTTP_UPSshutdown(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
	  uint8_t valueLen = 0;
	  char *valueLenEnd = 0;
	  char tempValue[50];
	  char tempValue2[50];
	  int8_t res = 0;
	  char log_string[50];

	  memset(tempValue, 0, 50);
	  memset(log_string, 0,50);

	  strcpy(bufOut, HTTP_200_OK);

	  GetParamValue(bufIn, "func=", tempValue, &valueLen);
	  if (strcmp(tempValue, "reboot") == 0){
		  res = ups_metac_service_pdu(ups_cancel_shut_down);
		  if(res == 1){
			  strcpy(log_string, name_login);
			  strcat(log_string, " (Останов)");
			  log_event_data(LOG_SHUTDOWN_UPS, log_string);
			  strcat(bufOut, "Выключение нагрузки ИБП отменено!");
		  }
		  else
			  strcat(bufOut, "Выключение нагрузки ИБП не удалось отменить!");
		  *lenBufOut = strlen(bufOut);
	  }
	  else if (strncmp(tempValue, "off", 5) == 0){
		  memset(tempValue2, 0, 50);
		  GetParamValue(bufIn, "after=", tempValue2, &valueLen);
		  TimeParamFloat = atof(tempValue2);
		  res = ups_metac_service_pdu(ups_shutdown);
		  if(res == 1){
			  strcat(bufOut, "Отключение нагрузки ИБП!");
			  log_event_data(LOG_SHUTDOWN_UPS, name_login);
		  }else
			  strcat(bufOut, "Отключение нагрузки ИБП не удалось!");
		  *lenBufOut = strlen(bufOut);
	  }
}


/**
  * @brief  Проверка пароля для перехода в режим bootloader
  * @retval None
  */
void HTTP_ConfirmBootPwd(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
  char tempStr[50];
  strncpy(tempStr, bufIn, 50);
  char value[20];
  uint8_t valueLen;
  
  memset(value, 0, 20);
  
  /* Запускаем задачу отложенной перезагрузки. Контроллер должен успеть
     отправить ответ серверу о статусе пароля */
  HTTP_StartResetTask(true); 
}

void LoginTimerCallback(TimerHandle_t pxTimer) {
	cnt_err_psw = 0;
	DBG printf("cnt_err_psw %d", cnt_err_psw);
	xTimerStop(RepeatLoginTimer, 0);
}

/**
  * @brief  Проверка пароля для входа в Web
  * @retval None
  */
int HTTP_ConfirmWebPwd(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
	  char tempStr[50];
	  char login[20];
	  char password[20];
	  uint8_t valueLen, user_id;
	  char *strPtr = 0;
	  char WebPassword[MAX_WEB_PASSWD_LEN];
	  char WebLogin[MAX_WEB_LOGIN_LEN];

	  memset(login, 0, 20);
	  memset(password, 0, 20);
	  memset(tempStr, 0, 50);

	  memset(name_login, 0, 50);

	  /* Get first 50 bytes of string */
	  strncpy(tempStr, bufIn, 49);

	  /* Add " " to the string in order GetParamValue() can be able to parse the param */
	  strcat(tempStr, " ");
	  GetParamValue(tempStr, "login=", login, &valueLen);
	  GetParamValue(tempStr, "password=", password, &valueLen);

	  for (user_id = 0; user_id < MAX_WEB_USERS; user_id++) {

			GetUserLogin(user_id, WebLogin, &valueLen);
			GetUserPassword(user_id, WebPassword, &valueLen);

			/* Check login and password */
			if ((strncmp(WebLogin, login, MAX_WEB_LOGIN_LEN) == 0) &&
				(strncmp(WebPassword, password, MAX_WEB_PASSWD_LEN) == 0)) {

				/* Login and pass are valid */

			/* TODO replace global flag with user-pass-cookie */
				if(cnt_err_psw < 4){
					cnt_err_psw = 0;
					Authenticated = true;
				}
				else{
					Authenticated = false;
				}
				break;
			}
			else{
				Authenticated = false;
			}
	  }

	  if(Authenticated){
		  /* Generate cookie */
		  sprintf(tempStr, "%X", (unsigned int)GetRandomNumber());

		  /* Set users cookie */
		  HTTP_SetUserCookie(tempStr, user_id);

		  HTTP_UpdateUserLoginTime(user_id);

		  /* Send login and cookie back */
		  strcpy(bufOut, "HTTP/1.0 200 OK\r\nContent-Type:text/html\r\nSet-Cookie: uname=");
		  strcat(bufOut, login);
		  strcat(bufOut, "\r\nSet-Cookie: id=");
		  strcat(bufOut, tempStr);
		  sprintf(tempStr, "%d", user_id);
		  strcat(bufOut, "\r\nSet-Cookie: role=");
		  strcat(bufOut, tempStr);
		  strcat(bufOut, "\r\nSet-Cookie: auth=1");
		  strcat(bufOut, "\r\n\r\n");

		  strcat(bufOut,"<!DOCTYPE html><html lang=""><head><meta http-equiv=\"refresh\" content=\"0;url=/index.html\"/></head></html>\r\n\r\n");

		  *lenBufOut = strlen(bufOut);
			  switch (user_id) {
				  case 0:
					  snprintf(name_login, sizeof(name_login), "Администратор");
					  break;
				  case 1:
					  snprintf(name_login, sizeof(name_login), "Пользователь");
					  break;
				  default:
					  break;
			  }

		  log_event_data(LOG_LOGIN, name_login);
		  /* Запускаем задачу-таймер логаута. */
		  /* TODO отправить ответ серверу о статусе пароля */
		  return SEND_REQUIRED_YES;
	  }
	  else{
		  if(cnt_err_psw <= 4)
				cnt_err_psw ++;
			DBG printf("cnt_err_psw %d", cnt_err_psw);
			if(cnt_err_psw == 4)
				xTimerStart(RepeatLoginTimer, 0);
		  strcpy(bufOut, "HTTP/1.0 200 OK\r\nContent-Type: text/html;\r\n\r\n");

		  if(cnt_err_psw < 4)
			  strcat(bufOut,"<!DOCTYPE html><html><head><meta charset=\"utf-8\"><meta http-equiv=\"refresh\" content=\"3; url=/login.html\" /></head><center><h2>Не правильный логин или пароль</h2></center></html>");
		  else
			  strcat(bufOut,"<!DOCTYPE html><html><head><meta charset=\"utf-8\"><meta http-equiv=\"refresh\" content=\"3; url=/login.html\" /></head><center><h2>Вход заблокирован!</h2></center></head><center><h2>Повторите попытку через 1 минуту</h2></center></html>");

		  *lenBufOut = strlen(bufOut);
		  return SEND_REQUIRED_NO;
	  }
}

/**
  * @brief  
  * @retval None
  */
uint8_t GetParamValue(char *inStr, char *paramName, char *paramValue, uint8_t *paramLen)
{
  char *beginValue = 0;
  char *endValue = 0;
  int  len = 0;
  char *strPtr = 0;
  
  strPtr = strstr(inStr, paramName);
  
  if (strPtr != 0)
  {
    beginValue = strpbrk(strPtr,"=");
    endValue = strpbrk(strPtr,"&");
    if (endValue == 0)
      endValue = strpbrk(strPtr," ");
    len = endValue - beginValue - 1;
    strncpy(paramValue, beginValue + 1, len);
    *endValue = '0';
    *beginValue = '0';
	*paramLen = len;
	return 1;
  }
  else
  {	
	*paramLen = 0;
	return 0;
  }
}

/**
  * @brief  
  * @retval None
  */
uint8_t GetCookieValue(char *inStr, char *paramName, char *paramValue, uint8_t *paramLen)
{
  char *beginValue = 0;
  char *endValue = 0;
  char *endValueTemp = 0;
  int  len = 0;
  char *strPtr = 0;

  strPtr = strstr(inStr, paramName);

  if (strPtr != 0)
  {
    beginValue = strpbrk(strPtr,"=");
    endValue = strpbrk(strPtr,";");
    endValueTemp = strpbrk(strPtr,"\r");
	if(endValueTemp != 0 && endValueTemp < endValue)
	   endValue = endValueTemp;
    if (endValue == 0)
      endValue = strpbrk(strPtr,"\n");
    len = endValue - beginValue - 1;
    strncpy(paramValue, beginValue + 1, len);
    *endValue = '0';
    *beginValue = '0';
    *paramLen = len;
    return 1;
  }
  else
  {
    *paramLen = 0;
    return 0;
  }
}

char* Parce_Boundary(const char* data, uint32_t len, char* dst, uint8_t dstlen) {
    char *ptr = NULL;
    char *boundary = NULL;
    uint8_t i = 0;

    for (uint32_t j = 0; j < len; j++) {
        if (strncmp ((char*)(data + j), "boundary=", 9) == 0) {
            boundary = (char*)data + j + 9;
            break;
        }
    }

    if (!boundary) return NULL;

    *dst++ = '-';
    *dst++ = '-';

    ptr = boundary;
    while ((*ptr != 0x0d) && (i < dstlen - 4))
    {
        *dst++ = *ptr++;
        i++;
    }
    //*dst++ = '-';
    //*dst++ = '-';
    *dst = '\0';

    if (i > 0)
        return boundary;
    else
        return NULL;
}

void ClearParamString(char *inBuf)
{
  uint16_t len;
  char *str;
  
  str = strstr(inBuf, "HTTP");
  
  if (str != 0)
  {
    len = str - inBuf;
	memset(str, 0, RECIVE_BUF_MAX_LEN - len - 1);
  }
}

/**
  * @brief Чтение Cookie пользователя
  */
static void HTTP_GetUserCookie(uint8_t user_id, char *str, uint8_t *len)
{
    sprintf(str, "%s", users[user_id].cookie);
    *len = strlen(str);
}

/**
  * @brief Установка Cookie пользователя
  */
static void HTTP_SetUserCookie(char *str, uint8_t user_id)
{
    strcpy(users[user_id].cookie, str);
}

/**
  * @brief Обновление времени последней активности пользователя
  */
static void HTTP_UpdateUserLoginTime(uint8_t user_id)
{
    xTimerStart(users[user_id].LogoutTimer, 0);
}

/**
  * @brief  Extract the Content_Length data from HTML data
  * @param  data : pointer on receive packet buffer
  * @param  len  : buffer length
  * @retval size : Content_length in numeric format
  */
static uint32_t Parse_Content_Length(char *data, uint32_t len)
{
  uint32_t i=0,size=0, S=1;
  int32_t j=0;
  char sizestring[6], *ptr;

  ContentLengthOffset =0;

  /* find Content-Length data in packet buffer */
  for (i=0;i<len;i++)
  {
    if (strncmp ((char*)(data+i), Content_Length, 16)==0)
    {
      ContentLengthOffset = i+16;
      break;
    }
  }
  /* read Content-Length value */
  if (ContentLengthOffset)
  {
    i=0;
    ptr = (char*)(data + ContentLengthOffset);
    while(*(ptr+i)!=0x0d)
    {
      sizestring[i] = *(ptr+i);
      i++;
      ContentLengthOffset++;
    }
    if (i>0)
    {
      /* transform string data into numeric format */
      for(j=i-1;j>=0;j--)
      {
        size += (sizestring[j]-0x30)*S;
        S=S*10;
      }
    }
  }
  return size;
}

/**
  * @brief Принудительный логаут пользователя
  */
static void HTTP_ForceUserLogout(uint8_t user_id)
{
    char cookie[MAX_WEB_COOKIE_LEN];

    /* Flush user cookie by random value */
    sprintf(cookie, "%X", (unsigned int)GetRandomNumber());
    HTTP_SetUserCookie(cookie, user_id);
}

/**
  * @brief >Callback таймера логаута пользователя
  */
void LogoutTimerCallback(TimerHandle_t pxTimer) {
    uint8_t user_id = (uint8_t)pvTimerGetTimerID( pxTimer );
	HTTP_ForceUserLogout(user_id);
}

/**
  * @brief  Смена пароля пользователя
  * @retval None
  */
int HTTP_ChangeUserPwd(char *bufIn, char *bufOut, uint16_t lenBufIn, uint16_t *lenBufOut)
{
    char tempStr[110];

    char value[20];
    char login[20];
    char password[20];
    uint8_t valueLen, valueLen2, user_id;
    char WebLogin[MAX_WEB_LOGIN_LEN];

    (void)lenBufIn;

    memset(login, 0, 20);
    memset(password, 0, 20);
    memset(tempStr, 0, 50);
    memset(value, 0, 20);

    ClearParamString(bufIn);

    strncpy(tempStr, bufIn, 110);

    strcpy(bufOut, HTTP_200_OK);

    if (GetParamValue(tempStr, "username=", login, &valueLen) &&
        GetParamValue(tempStr, "oldpass=", password, &valueLen))
    {
          for (user_id = 0; user_id < MAX_WEB_USERS; user_id++)
          {
        	  memset(value, 0, 20);
			  memset(WebLogin, 0, MAX_WEB_LOGIN_LEN);
			 GetUserLogin(user_id, WebLogin, &valueLen);
			 GetUserPassword(user_id, value, &valueLen2);
			 /* Check login and password */
			 if ((strncmp(WebLogin, login, MAX_WEB_LOGIN_LEN) == 0) &&
				 (memcmp(password, value, 11) == 0))
			 {
				 memset(password, 0, 20);
				 if (GetParamValue(tempStr, "newpass=", password, &valueLen))
				 {

					 memcpy(sSettings.sAuth[user_id].password, password, 11);

					 HTTP_SaveSettings();
					 log_event_data(LOG_PSW_CHANGE, name_login);
					 strcat(bufOut, "Пароль успешно изменён");
					 *lenBufOut = strlen(bufOut);
					 return SEND_REQUIRED_YES;
				 }
				 else {
					  strcat(bufOut, "Введены некорректные данные!");
					  *lenBufOut = strlen(bufOut);
					  return SEND_REQUIRED_YES;
				 }
			 }
          }
          strcat(bufOut, "Введён неверный пароль!");
          *lenBufOut = strlen(bufOut);
          return SEND_REQUIRED_YES;
  }
  else {
      strcat(bufOut, "Введены некорректные данные!");
      *lenBufOut = strlen(bufOut);
      return SEND_REQUIRED_YES;
  }
}


//
void Cockie(void)
{
  receiveBuf[receivedBufLen] = '\0';
  //printf("receive %s \r\n", receiveBuf);
  // Get cookie "uname" value 
  memset(CookieBuf, 0, sizeof(CookieBuf));
  CookiePtr = strstr(receiveBuf, "uname=");
  strncpy(CookieBuf, CookiePtr, 50);
  
  //printf("********CookieBuf1= %s\r\n", CookieBuf);
  memset(name, 0, MAX_WEB_COOKIE_LEN);
  GetCookieValue(CookieBuf, "uname=", name, &nameLen);
  //printf("********CookieBuf2= %s\r\n", CookieBuf);
  //printf("********uname= %s\r\n", name);

  memset(CookieBuf, 0, sizeof(CookieBuf));
  // Get cookie "id" value 
  CookiePtr = strstr(receiveBuf, " id=");
  strncpy(CookieBuf, CookiePtr, 50);
   
  //printf("********CookieBuf1= %s\r\n", CookieBuf);
  memset(id, 0, MAX_WEB_COOKIE_LEN);
  GetCookieValue(CookieBuf, "id=", id, &idLen);
  // printf("********ID= %s\r\n", id);
}

//
void getAuthenticatedState(void)
{
  seclevel = 0xFF;
  for (user_id = 0; user_id < MAX_WEB_USERS; user_id++) {
	HTTP_GetUserCookie(user_id, CookieBuf, &idLen);
	if (strncmp(id, CookieBuf, idLen) == 0 ) {
	  GetUserLevelInt(user_id, &seclevel);
	  Authenticated = true;
	  break;
	}
	Authenticated = false;
	seclevel = 0xFF;
  }
}

//
char* AuthenticatedFalseRoutine(uint16_t* sendLen)
{
    if (strncmp(receiveBuf, "GET /main.css", 13) == 0) // +
    {
        fs_open("/main.css", &file);
        *sendLen = file.len;
        return file.data;
    }
    else if (strncmp(receiveBuf, "GET /rotek.png", 14) == 0) // +
    {
        fs_open("/rotek.png", &file);
        *sendLen = file.len;
        return file.data;
    }
    else if (strncmp(receiveBuf, "GET /favicon.ico", 16) == 0) // ?
    {
        fs_open("/favicon.ico", &file);
        *sendLen = file.len;
        return file.data;
    }
    else if (strncmp(receiveBuf, "GET /role.js", 12) == 0)
    {
        fs_open("/role.js", &file);
        *sendLen = file.len;
        return file.data;
    }   
    else if (strncmp(receiveBuf, "POST /login.cgi", 15) == 0)
    {
        uint32_t req_data_received = 0;
        char *offset = 0;
                
        post_data_count = Parse_Content_Length(receiveBuf, receivedBufLen);
		  
        if (post_data_count < MAX_POST_REQ_LEN) 
        {
            memset(post_req_data, 0, MAX_POST_REQ_LEN);
            offset = (strstr(receiveBuf, "\r\n\r\n")) + 4;
            req_data_received = receivedBufLen - (offset - &receiveBuf[0]);

            if (offset != 0) 
            {
                if (req_data_received < post_data_count) 
                {
                    snprintf(post_req_data, req_data_received, "%s", receiveBuf);
                    post_data_count -= req_data_received;
                }
                /* if data received completely */
			  else {

				  strncat(post_req_data, &receiveBuf[offset - &receiveBuf[0]], post_data_count);
				  //printf("post_req_data: %s\r\n", post_req_data);
				  /* End reqest */
				 				  post_data_count = 0;
				 				  log_post_reqn = 0;
				  if (HTTP_ConfirmWebPwd(post_req_data, sendBuf, strlen(post_req_data), sendLen) == SEND_REQUIRED_YES) {

						return sendBuf;
				  }
				  else {
					  /* Redirect to login page */
					  fs_open("/login.html", &file);
					  *sendLen = file.len;
					  return file.data;
				  }


			  }
            } 
            // request was fragmented before "\r\n\r\n" 
            else 
            {
            	 log_post_reqn++;

				  /* wait max 2 requests */
				  if (log_post_reqn > 1) {
					  /* End reqest */
					  post_data_count = 0;
					  log_post_reqn = 0;
					  /* Redirect to login page */
					  fs_open("/login.html", &file);
					  *sendLen = file.len;
					  return file.data;


				  }
            }
        }
        else 
        {
            //printf("Too long POST request!\r\n");
            // Ignore request 
            post_data_count = 0;
            log_post_reqn = 0;
            // Redirect to login page 
                fs_open("/login.html", &file);
  
            *sendLen = file.len;
            return file.data;   
        }
    }
    else if (post_data_count > 0)
    {
        strncat(post_req_data, receiveBuf, post_data_count);
        post_data_count = 0;
        log_post_reqn = 0;

        if (HTTP_ConfirmWebPwd(post_req_data, sendBuf, strlen(post_req_data), sendLen) == SEND_REQUIRED_YES) 
        {
            return sendBuf;
        }
        else 
        {
            return sendBuf;
        }
    }
    else
    {
            fs_open("/login.html", &file);
  
        *sendLen = file.len;
        return file.data;
    }
}

//
char* AuthenticatedTrueRoutine(uint16_t* sendLen)
{
    char *DataOffset;
    char *ptr;
    
 if (strncmp(receiveBuf, "GET /getJson.cgi", 16) == 0) // +
    {
        HTTP_GetParamsPage1(sendBuf);
        *sendLen = strlen(sendBuf);
        return sendBuf;
    }	  
    else if (strncmp(receiveBuf, "GET /settings.cgi", 17) == 0) // +
    {
        if (seclevel == 0) {
            if (HTTP_SettingsPage(receiveBuf, sendBuf, receivedBufLen, sendLen) == SEND_REQUIRED_YES)
            {
                *sendLen = strlen(sendBuf);
                return sendBuf;
            }
        }
        return 0;
    }
    else if (strncmp(receiveBuf, "POST /settings.cgi", 18) == 0)
    {
        if (seclevel == 0) 
        {
            DataOffset = 0;
            // POST Packet received 
            TotalReceived = 0;
            TotalData = 0;
            memset(sendBuf, 0, strlen(sendBuf));

            // parse packet for Content-length field
            size = Parse_Content_Length(receiveBuf, receivedBufLen);
            DataOffset = strstr(receiveBuf, "managerIP");

            /* case of MSIE8 : we do not receive data in the POST packet*/
            if (DataOffset == 0)
            {
                //ssl_server_read();
        //        SSL_ReadRoutine(&ssl, (unsigned char*)receiveBuf);
                DataOffset = strstr(receiveBuf, "managerIP");
            }           

            TotalReceived = receivedBufLen - (DataOffset - &receiveBuf[0]);
            TotalData += TotalReceived;
            strncat(sendBuf,  DataOffset, TotalReceived);

            for (int i = TotalData; i < size; i ++)
            {
                //ssl_server_read();
             //   SSL_ReadRoutine(&ssl, (unsigned char*)receiveBuf);
                strncat(sendBuf,  receiveBuf, receivedBufLen);
                TotalData += receivedBufLen;
            }
            // check if last data packet 
            if (TotalData == size)
            {
                DBG printf("State: Received %d bytes\r\n", (int)TotalData);
                //  printf("receive %s \r\n", sendBuf);
                strncat(sendBuf,  " ", 1);
                HTTP_SetSettings(sendBuf, strlen(sendBuf));
                memset(sendBuf, 0, size);
                strcpy(sendBuf, "HTTP/1.1 200 OK\r\n");
                strcat(sendBuf, "\r\n\r\n");
                strcat(sendBuf,"<!DOCTYPE html><html lang=""><head><meta http-equiv=\"refresh\" content=\"0;url=/settings.html\"/></head></html>\r\n\r\n");
                sendBufLoadLen = strlen(sendBuf);
                *sendLen = sendBufLoadLen;
                return sendBuf;
            }
        }  
        return 0;
    } 
    else if (strncmp(receiveBuf, "GET /info.cgi", 13) == 0) // +
    {
        if (HTTP_InfoPage(receiveBuf, sendBuf, receivedBufLen, sendLen) == SEND_REQUIRED_YES)
        {
            return sendBuf;
        }
    }
    else if (strncmp(receiveBuf, "POST /info.cgi", 14) == 0)
    {
        if (seclevel == 0) 
        {
            DataOffset = 0;
            // POST Packet received
            TotalReceived = 0;
            TotalData = 0;
            memset(sendBuf, 0, strlen(sendBuf));
            // parse packet for Content-length field
            size = Parse_Content_Length(receiveBuf, receivedBufLen);
            DataOffset = strstr(receiveBuf, "owner");

            // case of MSIE8 : we do not receive data in the POST packet
            if (DataOffset == 0)
            {
               // SSL_ReadRoutine(&ssl, (unsigned char*)receiveBuf);
                DataOffset = strstr(receiveBuf, "owner");
            }

            TotalReceived = receivedBufLen - (DataOffset - &receiveBuf[0]);
            TotalData += TotalReceived;
            strncat(sendBuf,  DataOffset, TotalReceived);

            // check if last data packet 
            if (TotalReceived == size)
            {
                strncat(sendBuf,  " ", 1);
                HTTP_SetInfo(sendBuf, strlen(sendBuf));
                DataFlag = 0;
                BrowserFlag = 0;
                memset(sendBuf, 0, size);

                strcpy(sendBuf, "HTTP/1.1 200 OK\r\n");
                strcat(sendBuf, "\r\n\r\n");
                strcat(sendBuf,"<!DOCTYPE html><html lang=""><head><meta http-equiv=\"refresh\" content=\"0;url=/info.html\"/></head></html>\r\n\r\n");
                
                *sendLen = strlen(sendBuf);
                return sendBuf;
            }
            // not last data packet 
            else
            {
                // write data in flash 
                if(receivedBufLen)
                {
                    strncat(sendBuf,  ptr, receivedBufLen);
                    //memcpy(receiveBufTemp, ptr, receivedBufLen);
                }
            }
        }
    }
    else if (strncmp(receiveBuf, "GET /history.cgi", 16) == 0)
    {
        int res;
        res = HTTP_HistoryPage(receiveBuf, sendBuf, receivedBufLen, sendLen);
    
        if (res == SEND_REQUIRED_FILE)
        {
        	HTTPTypeAnswer = HISTORY_ANSWER;
            return HTTP_SendHistory(sendLen);
        }
        else if (res == SEND_REQUIRED_YES) 
        {
            return sendBuf;
        }
    }
    else if (strncmp(receiveBuf, "GET /ups_history.cgi", 19) == 0)
    {
        int res;
    
        res = HTTP_UpsHistoryPage(receiveBuf, sendBuf, receivedBufLen, sendLen);
    
        if (res == SEND_REQUIRED_FILE)
        {
        	HTTPTypeAnswer = UPS_HISTORY_ANSWER;
            return HTTP_SendLog(sendLen);
        }
        else if (res == SEND_REQUIRED_YES) 
        {
            return sendBuf;
        }
    }
    /* Тест  АКБ ИБП */
    else if (strncmp(receiveBuf, "GET /bat_test.cgi", 17) == 0)
    {
        HTTP_UPSTest(receiveBuf, sendBuf, receivedBufLen, sendLen);
        return sendBuf;
    }
    /* Выключение ИБП */
    else if (strncmp(receiveBuf, "GET /ups_power.cgi", 18) == 0)
    {
        HTTP_UPSshutdown(receiveBuf, sendBuf, receivedBufLen, sendLen);
        return sendBuf;
    }
    /* Сброс настроек и сохранине */
    else if (strncmp(receiveBuf, "GET /reset.cgi", 14) == 0)
    {
        HTTP_ResetSettings();
        HTTP_SaveSettings();
    
        fs_open("/settings.html", &file);
        *sendLen = file.len;
        return file.data;
    }
    /* Перезагрузка контроллера */
    else if (strncmp(receiveBuf, "GET /reboot.cgi", 15) == 0)
    {
        HTTP_Reboot();
    }
    /* Подтверждение новых сетевых настроек */
    else if (strncmp(receiveBuf, "GET /confirm.cgi", 16) == 0)
    {
        SetWebReinitFlag(false);
        SetConfirmWebParamsFlag();
    
        fs_open("/index.html", &file);
        *sendLen = file.len;
        return file.data;
    }
    /* Проверка пароля, переход в bootloader */
    else if (strncmp(receiveBuf, "GET /fw_update.cgi", 18) == 0)
    {
        HTTP_ConfirmBootPwd(receiveBuf, sendBuf, receivedBufLen, sendLen);
        return sendBuf;
    }
    /* Смена пароля пользователя */
    else if (strncmp(receiveBuf, "GET /changepwd.cgi", 18) == 0)
    {
        HTTP_ChangeUserPwd(receiveBuf, sendBuf, receivedBufLen, sendLen);
        return sendBuf;
    }
    // На производстве
    else if (strncmp(receiveBuf, "GET /setProdate.cgi", 19) == 0)
    {
        HTTP_Prodate(receiveBuf, sendBuf, receivedBufLen, sendLen);
        return sendBuf;
    }
    /* Check common GET request */
	  else if (strncmp(receiveBuf, "GET", 3) == 0) {
		  char filename[MAX_FILENAME_LEN];
		  char nonmatch[MAX_ETAG_LEN];
		  char *pnonmatch = NULL;
		  uint8_t len;

		  if (GetFileName(receiveBuf, filename, &len)) {
			  HTTP_UpdateUserLoginTime(user_id);

			  /* Parce If-Non_Match value */
			  uint8_t nonmatch_len = Parse_Header(receiveBuf, receivedBufLen, If_None_Match, 15, nonmatch);
			  if (nonmatch_len < MAX_ETAG_LEN && nonmatch_len > 0) {
				  DBG printf("If_None_Match: %s\r\n", nonmatch);
				  pnonmatch = nonmatch;
			  }
			  return send_file(filename, pnonmatch, &file, sendLen);
		  }
	  }
    else
    {
        HTTP_UpdateUserLoginTime(user_id);
        fs_open("/index.html", &file); // +
        *sendLen = file.len;
        return file.data;
    }
    
    return 0;
}

/**
  * @brief Send callback for log file transfer (messages as is, not ordered)
  */
char* HTTP_SendHistory(uint16_t *Len)
{
	struct http_state *hs;
    uint32_t nbytes = 0;
    static bool start = true;

    memset(logFileBuf, 0, FILE_BUF_MAX_LEN);
    
    if (log_ptr + FILE_BUF_MAX_LEN <= log_size) {
        nbytes = History_GetData(log_ptr, logFileBuf, FILE_BUF_MAX_LEN, start);
    }
    else if (log_ptr < log_size) {
        nbytes = History_GetData(log_ptr, logFileBuf, (log_size - log_ptr), start);
    }
    else {
        nbytes = 0;
    }
    log_ptr += nbytes;

    start = false;
    
    *Len = nbytes;
    if (nbytes == 0) {
        // File transfer finished. 
        start = true;
        // Clear file transfer in progress flag 
        fLogTransInprog = false;
        return 0;
    }
    return logFileBuf;
  //  hs->file = logFileBuf;
	// hs->left = nbytes;
	// send_data(pcb, hs);
 //  SSL_SendFrames(&ssl, logFileBuf, nbytes);
  //  HTTP_SendHistory();
}

/**
  * @brief Sent callback for log file transfer (messages as is, not ordered)
  */
char* HTTP_SendLog(uint16_t *Len)
{
    uint32_t nbytes = 0;
    static bool start = true;

	memset(logFileBuf, 0, FILE_BUF_MAX_LEN);
    if (log_ptr + FILE_BUF_MAX_LEN_LOG <= log_size) {
        nbytes = LOG_GetData(log_ptr, logFileBuf, FILE_BUF_MAX_LEN_LOG, start);
    }
    else if (log_ptr < log_size) {
        nbytes = LOG_GetData(log_ptr, logFileBuf, (log_size - log_ptr), start);
    }
    else {
        nbytes = 0;
    }
    log_ptr += nbytes;

    start = false;
    *Len = nbytes;
    if (nbytes == 0) {
        // File transfer finished. 
        start = true;
        // Clear file transfer in progress flag 
        fLogTransInprog = false;
        return 0;
    }

 //   SSL_SendFrames(&ssl, logFileBuf, nbytes);
  //  HTTP_SendLog();
  
    return logFileBuf;
}

/**
  * @brief  sends file from flash FS
  * @param  filename: pointer to the file name to send
  * @param  pnonmatch: pointer to the If-Non_Match value
  * @param  pcb: pointer to a tcp_pcb struct
  * @param  hs: pointer to a http_state struct
  * @param  file: pointer to a fs_file struct
  * @retval
  */
char* send_file(char *filename, char *pnonmatch,  struct fs_file *file, uint16_t *Len)
{
    int res = 0;
    char etag[MAX_ETAG_LEN];
    char *petag = NULL;

    res = fs_open(filename, file);

    if (res == 0) {
        printf("Not found: %s\r\n", filename);
        sprintf(filename, "/index.html");
        fs_open(filename, file);
    }

    /* Find Etag value */
    uint8_t etag_len = Parse_Header(file->data, file->len, Etag, 6, etag);
    if (etag_len < MAX_ETAG_LEN && etag_len > 0) {
        DBG printf("Etag: %s\r\n", etag);
        petag = etag;
    }

    /* Compare Etag and If-Non-Match fields */
    if (pnonmatch && petag && (strcmp(pnonmatch, petag) == 0)) {
        /* Send 304 code */
        sprintf(sendBuf, HTTP_304_NOT_MODIFIED);
        DBG printf(sendBuf);
        *Len = strlen(sendBuf);
        return sendBuf;
        //hs->file = sendBuf;
        //hs->left = strlen(sendBuf);
    }
    else {
        /* Send file */
        //DBG printf("%s\r\n\r\n", filename);
        //hs->file = file->data;
        //hs->left = file->len;
    	*Len = file->len;
    	return file->data;
    }

    //send_data(pcb, hs);
    //tcp_sent(pcb, http_sent);
}

/**
  * @brief  Extract the custom field data from HTML data
  * @param  data : pointer on receive packet buffer
  * @param  len  : buffer length
  * @param  field : field name
  * @param  flen : field name length
  * @retval value : pointer for field data
  */
static uint32_t Parse_Header(char *data, uint32_t len, const char *field, uint32_t flen, char *value)
{
    uint32_t i = 0, size = 0;
    char *ptr;
    uint32_t Offset = 0;

    /* Find field name in data buffer */
    for (i = 0; i < len; i++) {
        if (strncmp ((char*)(data + i), field, flen) == 0) {
            Offset = i + flen;
            break;
        }
    }
    /* Copy Field value */
    if (Offset) {
        i = 0;
        ptr = (char*)(data + Offset);
        while (*(ptr + i) != 0x0d) {
            value[i] = *(ptr + i);
            i++;
        }
        value[i] = '\0';
        size = i;
    }
    return size;
}
/**
  * @brief
  * @retval None
  */
bool GetFileName(char *inStr, char *fileName, uint8_t *fileNameLen)
{
  char *beginValue = NULL;
  char *endValue = NULL;
  int  len = 0;
  char *strPtr = NULL;

  strPtr = strstr(inStr, "GET");
  if (strPtr == NULL) {
      strPtr = strstr(inStr, "POST");
  }

  if (strPtr == NULL) {
      *fileNameLen = 0;
      return false;
  }
  else {
    beginValue = strpbrk(strPtr, "/");

    endValue = strpbrk(beginValue, " ");
    if (endValue == NULL) {
        *fileNameLen = 0;
        return false;
    }
    len = endValue - beginValue;
    if (len < MAX_FILENAME_LEN) {
        strncpy(fileName, beginValue, len);
        *fileNameLen = len;
        fileName[len] = '\0';
        return true;
    }
    else {
        return false;
    }
  }
}

#endif