static void http_process_handler(uint8_t s, st_http_request * p_http_request)
{
uint8_t * uri_name;
uint32_t content_addr = 0;
uint16_t content_num = 0;
uint32_t file_len = 0;
uint8_t uri_buf[MAX_URI_SIZE]={0x00, };
uint16_t http_status;
int8_t get_seqnum;
uint8_t content_found;
if((get_seqnum = getHTTPSequenceNum(s)) == -1) return; // exception handling; invalid number
http_status = 0;
http_response = pHTTP_RX;
file_len = 0;
//method Analyze
switch (p_http_request->METHOD)
{
case METHOD_ERR :
http_status = STATUS_BAD_REQ;
send_http_response_header(s, 0, 0, http_status);
break;
case METHOD_HEAD :
case METHOD_GET :
get_http_uri_name(p_http_request->URI, uri_buf);
uri_name = uri_buf;
if (!strcmp((char *)uri_name, "/")) strcpy((char *)uri_name, INITIAL_WEBPAGE); // If URI is "/", respond by index.html
if (!strcmp((char *)uri_name, "m")) strcpy((char *)uri_name, M_INITIAL_WEBPAGE);
if (!strcmp((char *)uri_name, "mobile")) strcpy((char *)uri_name, MOBILE_INITIAL_WEBPAGE);
find_http_uri_type(&p_http_request->TYPE, uri_name); // Checking requested file types (HTML, TEXT, GIF, JPEG and Etc. are included)
#ifdef _HTTPSERVER_DEBUG_
printf("\r\n> HTTPSocket[%d] : HTTP Method GET\r\n", s);
printf("> HTTPSocket[%d] : Request Type = %d\r\n", s, p_http_request->TYPE);
printf("> HTTPSocket[%d] : Request URI = %s\r\n", s, uri_name);
#endif
if(p_http_request->TYPE == PTYPE_CGI)
{
content_found = http_get_cgi_handler(uri_name, pHTTP_TX, &file_len);
if(content_found && (file_len <= (DATA_BUF_SIZE-(strlen(RES_CGIHEAD_OK)+8))))
{
send_http_response_cgi(s, http_response, pHTTP_TX, (uint16_t)file_len);
}
else
{
send_http_response_header(s, PTYPE_CGI, 0, STATUS_NOT_FOUND);
}
}
else
{
// Find the User registered index for web content
if(find_userReg_webContent(uri_buf, &content_num, &file_len))
{
content_found = 1; // Web content found in code flash memory
content_addr = (uint32_t)content_num;
HTTPSock_Status[get_seqnum].storage_type = CODEFLASH;
}
// Not CGI request, Web content in 'SD card' or 'Data flash' requested
#ifdef _USE_SDCARD_
#ifdef _HTTPSERVER_DEBUG_
printf("\r\n> HTTPSocket[%d] : Searching the requested content\r\n", s);
#endif
if((fr = f_open(&fs, (const char *)uri_name, FA_READ)) == 0)
{
content_found = 1; // file open succeed
file_len = fs.fsize;
content_addr = fs.sclust;
HTTPSock_Status[get_seqnum].storage_type = SDCARD;
}
#elif _USE_FLASH_
else if(/* Read content from Dataflash */)
{
content_found = 1;
HTTPSock_Status[get_seqnum]->storage_type = DATAFLASH;
; // To do
printf("file len : %d\r\n", file_len);
}
#endif
else
{
content_found = 0; // fail to find content
}
if(!content_found)
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : Unknown Page Request\r\n", s);
#endif
http_status = STATUS_NOT_FOUND;
}
else
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : Find Content [%s] ok - Start [%ld] len [ %ld ]byte\r\n", s, uri_name, content_addr, file_len);
#endif
http_status = STATUS_OK;
}
// Send HTTP header
if(http_status)
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : Requested content len = [ %ld ]byte\r\n", s, file_len);
#endif
send_http_response_header(s, p_http_request->TYPE, file_len, http_status);
}
// Send HTTP body (content)
if(http_status == STATUS_OK)
{
send_http_response_body(s, uri_name, http_response, content_addr, file_len);
}
}
break;
case METHOD_POST :
mid((char *)p_http_request->URI, "/", " HTTP", (char *)uri_buf);
uri_name = uri_buf;
find_http_uri_type(&p_http_request->TYPE, uri_name); // Check file type (HTML, TEXT, GIF, JPEG are included)
#ifdef _HTTPSERVER_DEBUG_
printf("\r\n> HTTPSocket[%d] : HTTP Method POST\r\n", s);
printf("> HTTPSocket[%d] : Request URI = %s ", s, uri_name);
printf("Type = %d\r\n", p_http_request->TYPE);
#endif
if(p_http_request->TYPE == PTYPE_CGI) // HTTP POST Method; CGI Process
{
content_found = http_post_cgi_handler(uri_name, p_http_request, http_response, &file_len);
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [CGI: %s] / Response len [ %ld ]byte\r\n", s, content_found?"Content found":"Content not found", file_len);
#endif
if(content_found && (file_len <= (DATA_BUF_SIZE-(strlen(RES_CGIHEAD_OK)+8))))
{
send_http_response_cgi(s, pHTTP_TX, http_response, (uint16_t)file_len);
// Reset the H/W for apply to the change configuration information
if(content_found == HTTP_RESET) HTTPServer_ReStart();
}
else
{
send_http_response_header(s, PTYPE_CGI, 0, STATUS_NOT_FOUND);
}
}
else // HTTP POST Method; Content not found
{
send_http_response_header(s, 0, 0, STATUS_NOT_FOUND);
}
break;
default :
http_status = STATUS_BAD_REQ;
send_http_response_header(s, 0, 0, http_status);
break;
}
void httpServer_run(uint8_t seqnum)
{
uint8_t s; // socket number
uint16_t len;
uint32_t gettime = 0;
#ifdef _HTTPSERVER_DEBUG_
uint8_t destip[4] = {0, };
uint16_t destport = 0;
#endif
http_request = (st_http_request *)pHTTP_RX; // Structure of HTTP Request
parsed_http_request = (st_http_request *)pHTTP_TX;
// Get the H/W socket number
s = getHTTPSocketNum(seqnum);
/* HTTP Service Start */
switch(getSn_SR(s))
{
case SOCK_ESTABLISHED:
// Interrupt clear
if(getSn_IR(s) & Sn_IR_CON)
{
setSn_IR(s, Sn_IR_CON);
}
// HTTP Process states
switch(HTTPSock_Status[seqnum].sock_status)
{
case STATE_HTTP_IDLE :
if ((len = getSn_RX_RSR(s)) > 0)
{
if (len > DATA_BUF_SIZE) len = DATA_BUF_SIZE;
len = recv(s, (uint8_t *)http_request, len);
*(((uint8_t *)http_request) + len) = '\0';
parse_http_request(parsed_http_request, (uint8_t *)http_request);
#ifdef _HTTPSERVER_DEBUG_
getSn_DIPR(s, destip);
destport = getSn_DPORT(s);
printf("\r\n");
printf("> HTTPSocket[%d] : HTTP Request received ", s);
printf("from %d.%d.%d.%d : %d\r\n", destip[0], destip[1], destip[2], destip[3], destport);
#endif
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_REQ_DONE\r\n", s);
#endif
// HTTP 'response' handler; includes send_http_response_header / body function
http_process_handler(s, parsed_http_request);
gettime = get_httpServer_timecount();
// Check the TX socket buffer for End of HTTP response sends
while(getSn_TX_FSR(s) != (getSn_TXBUF_SIZE(s)*1024))
{
if((get_httpServer_timecount() - gettime) > 3)
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_REQ_DONE: TX Buffer clear timeout\r\n", s);
#endif
break;
}
}
if(HTTPSock_Status[seqnum].file_len > 0) HTTPSock_Status[seqnum].sock_status = STATE_HTTP_RES_INPROC;
else HTTPSock_Status[seqnum].sock_status = STATE_HTTP_RES_DONE; // Send the 'HTTP response' end
}
break;
case STATE_HTTP_RES_INPROC :
/* Repeat: Send the remain parts of HTTP responses */
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_RES_INPROC\r\n", s);
#endif
// Repeatedly send remaining data to client
send_http_response_body(s, 0, http_response, 0, 0);
if(HTTPSock_Status[seqnum].file_len == 0) HTTPSock_Status[seqnum].sock_status = STATE_HTTP_RES_DONE;
break;
case STATE_HTTP_RES_DONE :
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_RES_DONE\r\n", s);
#endif
// Socket file info structure re-initialize
HTTPSock_Status[seqnum].file_len = 0;
HTTPSock_Status[seqnum].file_offset = 0;
HTTPSock_Status[seqnum].file_start = 0;
HTTPSock_Status[seqnum].sock_status = STATE_HTTP_IDLE;
//#ifdef _USE_SDCARD_
// f_close(&fs);
//#endif
#ifdef _USE_WATCHDOG_
HTTPServer_WDT_Reset();
#endif
http_disconnect(s);
break;
default :
break;
}
break;
case SOCK_CLOSE_WAIT:
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : ClOSE_WAIT\r\n", s); // if a peer requests to close the current connection
#endif
disconnect(s);
break;
case SOCK_CLOSED:
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : CLOSED\r\n", s);
#endif
if(socket(s, Sn_MR_TCP, HTTP_SERVER_PORT, 0x00) == s) /* Reinitialize the socket */
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : OPEN\r\n", s);
#endif
}
break;
case SOCK_INIT:
listen(s);
break;
case SOCK_LISTEN:
break;
default :
break;
} // end of switch
#ifdef _USE_WATCHDOG_
HTTPServer_WDT_Reset();
#endif
}
static void http_process_handler(uint8_t s, st_http_request * p_http_request)
{
uint8_t * uri_name;
uint32_t content_addr = 0;
uint32_t file_len = 0;
uint8_t post_name[32]= {0x00,}; // POST method request file name
#ifdef _WILL_BE_IM_
uint32_t content_len = 0;
uint16_t post_len = 0; // POST
uint8_t sub[10]; // POST
#endif
uint16_t http_status;
int8_t get_seqnum;
uint8_t content_found;
if((get_seqnum = getHTTPSequenceNum(s)) == -1) return; // exception handling; invalid number
http_status = 0;
http_response = pHTTP_RX;
file_len = 0;
// HTTP Method Analyze
switch (p_http_request->METHOD)
{
case METHOD_ERR :
http_status = STATUS_BAD_REQ;
send_http_response_header(s, 0, 0, http_status);
break;
case METHOD_HEAD :
case METHOD_GET :
uri_name = get_http_uri_name(p_http_request->URI);
if (!strcmp((char *)uri_name, "/")) strcpy((char *)uri_name, INITIAL_WEBPAGE); // If URI is "/", respond by index.html
if (!strcmp((char *)uri_name, "m")) strcpy((char *)uri_name, M_INITIAL_WEBPAGE);
if (!strcmp((char *)uri_name, "mobile")) strcpy((char *)uri_name, MOBILE_INITIAL_WEBPAGE);
find_http_uri_type(&p_http_request->TYPE, uri_name); // Checking requested file types (HTML, TEXT, GIF, JPEG and Etc. are included)
#ifdef _HTTPSERVER_DEBUG_
printf("\r\n> HTTPSocket[%d] : HTTP Method GET\r\n", s);
printf("> HTTPSocket[%d] : Request Type = %d\r\n", s, p_http_request->TYPE);
printf("> HTTPSocket[%d] : Request URI = %s\r\n", s, uri_name);
#endif
if(p_http_request->TYPE == PTYPE_CGI)
{
content_found = http_get_cgi_handler(uri_name, pHTTP_TX, &file_len);
if(content_found && (file_len <= (2048-(strlen(RES_CGIHEAD_OK)+8))))
{
send_http_response_cgi(s, http_response, pHTTP_TX, (uint16_t)file_len);
}
else
{
send_http_response_header(s, PTYPE_CGI, 0, STATUS_NOT_FOUND);
}
}
else
{ // If No CGI request, Try to find The requested web content in storage (e.g., 'SD card' or 'Data flash')
#ifdef _USE_SDCARD_
#ifdef _HTTPSERVER_DEBUG_
printf("\r\n> HTTPSocket[%d] : Searching the requested content\r\n", s);
#endif
if((fr = f_open(&fs, (const char *)uri_name, FA_READ)) == 0)
{
content_found = 1; // file open succeed
file_len = fs.fsize;
content_addr = fs.sclust;
}
else
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [FatFs] Error code return: %d\r\n", s, fr);
#endif
content_found = 0; // file open failed
}
#endif
if(!content_found)
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : Unknown Page Request\r\n", s);
#endif
http_status = STATUS_NOT_FOUND;
}
else
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : Find Content [%s] ok - Start [%ld] len [ %ld ]byte\r\n", s, uri_name, content_addr, file_len);
#endif
http_status = STATUS_OK;
}
// Send HTTP header
if(http_status)
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : Requested content len = [ %ld ]byte\r\n", s, file_len);
#endif
send_http_response_header(s, p_http_request->TYPE, file_len, http_status);
}
// Send HTTP body (content)
if(http_status == STATUS_OK)
{
send_http_response_body(s, uri_name, http_response, content_addr, file_len);
}
}
break;
case METHOD_POST :
mid((char *)p_http_request->URI, "/", " HTTP", (char *)post_name);
uri_name = post_name;
find_http_uri_type(&p_http_request->TYPE, uri_name); //Check file type (HTML, TEXT, GIF, JPEG are included)
#ifdef _HTTPSERVER_DEBUG_
printf("\r\n> HTTPSocket[%d] : HTTP Method POST\r\n", s);
printf("> HTTPSocket[%d] : Request URI = %s ", s, post_name);
printf("Type = %d\r\n", p_http_request->TYPE);
#endif
if(p_http_request->TYPE == PTYPE_CGI) // HTTP POST Method; CGI Process
{
content_found = http_post_cgi_handler(post_name, p_http_request, http_response, &file_len);
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [CGI: %s] / Response len [ %ld ]byte\r\n", s, content_found?"Content found":"Content not found", file_len);
#endif
if(content_found && (file_len <= (2048-(strlen(RES_CGIHEAD_OK)+8))))
{
send_http_response_cgi(s, pHTTP_TX, http_response, (uint16_t)file_len);
// Reset the H/W for apply to the change configuration information
if(content_found == HTTP_RESET) HTTPServer_ReStart();
}
else
{
send_http_response_header(s, PTYPE_CGI, 0, STATUS_NOT_FOUND);
}
}
else // HTTP POST Method; Content not found
{
send_http_response_header(s, 0, 0, STATUS_NOT_FOUND);
}
break;
default :
http_status = STATUS_BAD_REQ;
send_http_response_header(s, 0, 0, http_status);
break;
}
}
void httpServer_run(uint8_t seqnum)
{
uint8_t s; // socket number
int16_t len;
//uint32_t gettime = 0; // 20150828 ## Eric removed
uint8_t ret = 0;
#ifdef _HTTPSERVER_DEBUG_
uint8_t destip[4] = {0, };
uint16_t destport = 0;
#endif
http_request = (st_http_request *)pHTTP_RX; // Structure of HTTP Request
parsed_http_request = (st_http_request *)pHTTP_TX;
// Get the H/W socket number
s = getHTTPSocketNum(seqnum);
/* HTTP Service Start */
switch(getSn_SR(s))
{
case SOCK_ESTABLISHED:
// Interrupt clear
if(getSn_IR(s) & Sn_IR_CON)
{
setSn_IR(s, Sn_IR_CON);
}
// HTTP Process states
switch(HTTPSock_Status[seqnum].sock_status)
{
case STATE_HTTP_IDLE :
if ((len = getSn_RX_RSR(s)) > 0)
{
if (len > DATA_BUF_SIZE) len = DATA_BUF_SIZE;
// ## 20150828, Eric / Bongjun Hur added
if ((len = recv(s, (uint8_t *)http_request, len)) < 0) break; // Exception handler
////////////////////////////////////////////////////////////////////////////////
// Todo; User defined custom command handler (userHandler.c)
ret = custom_command_handler((uint8_t *)http_request);
////////////////////////////////////////////////////////////////////////////////
if(ret > 0) // Custom command handler
{
// Todo: Users can change this parts for custom function added
//if(ret == COMMAND_SUCCESS) send(s, (uint8_t *)"CMDOK", 5);
//else if(ret == COMMAND_ERROR) send(s, (uint8_t *)"CMDERROR", 8);
HTTPSock_Status[seqnum].sock_status = STATE_HTTP_RES_DONE;
}
else // HTTP process handler
{
*(((uint8_t *)http_request) + len) = '\0'; // End of string (EOS) marker
parse_http_request(parsed_http_request, (uint8_t *)http_request);
#ifdef _HTTPSERVER_DEBUG_
getSn_DIPR(s, destip);
destport = getSn_DPORT(s);
printf("\r\n");
printf("> HTTPSocket[%d] : HTTP Request received ", s);
printf("from %d.%d.%d.%d : %d\r\n", destip[0], destip[1], destip[2], destip[3], destport);
#endif
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_REQ_DONE\r\n", s);
#endif
// HTTP 'response' handler; includes send_http_response_header / body function
http_process_handler(s, parsed_http_request);
/*
// ## 20150828 Eric removed
gettime = get_httpServer_timecount();
// Check the TX socket buffer for End of HTTP response sends
while(getSn_TX_FSR(s) != (getSn_TXBUF_SIZE(s)*1024))
{
if((get_httpServer_timecount() - gettime) > 3)
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_REQ_DONE: TX Buffer clear timeout\r\n", s);
#endif
break;
}
}
*/
if(HTTPSock_Status[seqnum].file_len > 0) HTTPSock_Status[seqnum].sock_status = STATE_HTTP_RES_INPROC;
else HTTPSock_Status[seqnum].sock_status = STATE_HTTP_RES_DONE; // Send the 'HTTP response' end
}
}
break;
case STATE_HTTP_RES_INPROC :
/* Repeat: Send the remain parts of HTTP responses */
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_RES_INPROC\r\n", s);
#endif
// Repeatedly send remaining data to client
send_http_response_body(s, 0, http_response, 0, 0);
if(HTTPSock_Status[seqnum].file_len == 0) HTTPSock_Status[seqnum].sock_status = STATE_HTTP_RES_DONE;
break;
case STATE_HTTP_RES_DONE :
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_RES_DONE\r\n", s);
#endif
// Socket file info structure re-initialize
HTTPSock_Status[seqnum].file_len = 0;
HTTPSock_Status[seqnum].file_offset = 0;
HTTPSock_Status[seqnum].file_start = 0;
HTTPSock_Status[seqnum].sock_status = STATE_HTTP_IDLE;
//#ifdef _USE_SDCARD_
// f_close(&fs);
//#endif
#ifdef _USE_WATCHDOG_
HTTPServer_WDT_Reset();
#endif
http_disconnect(s);
break;
default :
break;
}
break;
case SOCK_CLOSE_WAIT:
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : ClOSE_WAIT\r\n", s); // if a peer requests to close the current connection
#endif
//disconnect(s);
http_disconnect(s);
break;
case SOCK_INIT:
listen(s);
break;
case SOCK_LISTEN:
break;
case SOCK_SYNSENT:
//case SOCK_SYNSENT_M:
case SOCK_SYNRECV:
//case SOCK_SYNRECV_M:
break;
case SOCK_CLOSED:
default :
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : CLOSED\r\n", s);
#endif
if(socket(s, Sn_MR_TCP, HTTP_SERVER_PORT, 0x00) == s) /* Reinitialize the socket */
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : OPEN\r\n", s);
#endif
}
break;
} // end of switch
#ifdef _USE_WATCHDOG_
HTTPServer_WDT_Reset();
#endif
}
/* HTTP Server Run */
void httpServer_run(uint16_t server_port)
{
int8_t sock; // HW socket number
uint8_t sock_status; // HW socket status
int8_t seqnum; // Sequence number
int16_t len;
#ifdef _HTTPSERVER_DEBUG_
uint8_t destip[4] = {0, }; // Destination IP address
uint16_t destport = 0; // Destination Port number
#endif
sock = getAvailableHTTPSocketNum(); // Get the H/W socket number
if(sock < 0) return; // HW socket allocation failed
seqnum = getHTTPSequenceNum(sock);
http_request = (st_http_request *)httpserver.recvbuf; // HTTP Request Structure
parsed_http_request = (st_http_request *)http_req;
//parsed_http_request = (st_http_request *)httpserver.sendbuf; // old
/* Web Service Start */
sock_status = getSn_SR(sock);
switch(sock_status)
{
case SOCK_ESTABLISHED:
// Interrupt clear
if(getSn_IR(sock) & Sn_IR_CON)
{
setSn_IR(sock, Sn_IR_CON);
}
// HTTP Process states
switch(HTTPSock[seqnum].status)
{
case STATE_HTTP_IDLE :
if ((len = getSn_RX_RSR(sock)) > 0)
{
if (len > DATA_BUF_SIZE) len = DATA_BUF_SIZE;
if ((len = recv(sock, (uint8_t *)http_request, len)) < 0) break; // Exception handler
*(((uint8_t *)http_request) + len) = '\0'; // End of string (EOS) marker
parse_http_request(parsed_http_request, (uint8_t *)http_request);
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTP Request START ==========\r\n");
printf("%s", (uint8_t *)http_request);
printf("> HTTP Request END ============\r\n");
#endif
#ifdef _HTTPSERVER_DEBUG_
getSn_DIPR(sock, destip);
destport = getSn_DPORT(sock);
printf("\r\n");
printf("> HTTPSocket[%d] : HTTP Request received ", sock);
printf("from %d.%d.%d.%d : %d\r\n", destip[0], destip[1], destip[2], destip[3], destport);
#endif
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_REQ_DONE\r\n", sock);
#endif
// HTTP 'response' handler; includes send_http_response_header / body function
http_process_handler(sock, parsed_http_request);
if(HTTPSock[seqnum].file_len > 0) HTTPSock[seqnum].status = STATE_HTTP_RES_INPROC;
else HTTPSock[seqnum].status = STATE_HTTP_RES_DONE; // Send the 'HTTP response' end
}
break;
case STATE_HTTP_RES_INPROC :
/* Repeat: Send the remain parts of HTTP responses */
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_RES_INPROC\r\n", sock);
#endif
// Repeatedly send remaining data to client
send_http_response_body(sock, http_response, 0);
if(HTTPSock[seqnum].file_len == 0) HTTPSock[seqnum].status = STATE_HTTP_RES_DONE;
break;
case STATE_HTTP_RES_DONE :
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [State] STATE_HTTP_RES_DONE\r\n", sock);
#endif
// Socket file info structure re-initialize
HTTPSock[seqnum].file_len = 0;
HTTPSock[seqnum].file_offset = 0;
HTTPSock[seqnum].file_start = 0;
HTTPSock[seqnum].status = STATE_HTTP_IDLE;
#ifdef _USE_WATCHDOG_
HTTPServer_WDT_Reset();
#endif
http_disconnect(sock);
break;
default :
break;
}
break;
case SOCK_CLOSE_WAIT:
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : ClOSE_WAIT\r\n", sock); // if a peer requests to close the current connection
#endif
// Socket file info structure re-initialize: HTTP connection 'close'
HTTPSock[seqnum].file_len = 0;
HTTPSock[seqnum].file_offset = 0;
HTTPSock[seqnum].file_start = 0;
HTTPSock[seqnum].status = STATE_HTTP_IDLE;
http_disconnect(sock);
break;
case SOCK_INIT:
listen(sock);
break;
case SOCK_LISTEN:
break;
case SOCK_SYNSENT:
//case SOCK_SYNSENT_M:
case SOCK_SYNRECV:
//case SOCK_SYNRECV_M:
break;
case SOCK_CLOSED:
#ifdef _HTTPSERVER_DEBUG_
//printf("> HTTPSocket[%d] : CLOSED\r\n", sock);
#endif
if(server_port == 0) server_port = HTTP_SERVER_PORT;
if(socket(sock, Sn_MR_TCP, server_port, 0x00) == sock) // Init / Reinitialize the socket
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : SERVER OPEN, Port: %d\r\n", sock, server_port);
#endif
;
}
break;
default :
break;
} // end of switch
#ifdef _USE_WATCHDOG_
HTTPServer_WDT_Reset();
#endif
}
static void http_process_handler(uint8_t sock, st_http_request * p_http_request)
{
uint8_t * uri_name;
uint8_t uri_buf[MAX_URI_SIZE]={0x00, };
int32_t content_len = 0;
uint16_t status_code = 0;
uint16_t content_type;
int8_t table_num;
//int8_t seq_num;
//if((seq_num = getHTTPSequenceNum(sock)) == -1) return; // exception handling; invalid number
http_response = httpserver.recvbuf;
http_response_body = httpserver.sendbuf;
// method Analyze
switch (p_http_request->METHOD)
{
case HTTP_REQ_METHOD_HEAD :
case HTTP_REQ_METHOD_GET :
get_http_uri_name(p_http_request->URI, uri_buf);
uri_name = uri_buf;
if (!strcmp((char *)uri_name, "/")) strcpy((char *)uri_name, INITIAL_RESOURCE); // If URI is "/", respond by index
find_http_uri_type(&p_http_request->TYPE, uri_name); // Checking requested file types (HTML, TEXT, GIF, JPEG and Etc. are included)
break;
case HTTP_REQ_METHOD_POST :
mid((char *)p_http_request->URI, "/", " HTTP", (char *)uri_buf);
uri_name = uri_buf;
find_http_uri_type(&p_http_request->TYPE, uri_name); // Check file type
break;
case HTTP_REQ_METHOD_PUT :
mid((char *)p_http_request->URI, "/", " HTTP", (char *)uri_buf);
uri_name = uri_buf;
find_http_uri_type(&p_http_request->TYPE, uri_name); // Check file type
break;
case HTTP_REQ_METHOD_DELETE :
mid((char *)p_http_request->URI, "/", " HTTP", (char *)uri_buf);
uri_name = uri_buf;
find_http_uri_type(&p_http_request->TYPE, uri_name); // Check file type
break;
case HTTP_REQ_METHOD_ERR :
default :
status_code = HTTP_RES_CODE_NOT_IMPLE;
break;
}
#ifdef _HTTPSERVER_DEBUG_
printf("\r\n> HTTPSocket[%d] : HTTP Method = %.4x\r\n", sock, p_http_request->METHOD);
printf("> HTTPSocket[%d] : Request Type = %d\r\n", sock, p_http_request->TYPE);
printf("> HTTPSocket[%d] : Request URI = %s\r\n", sock, uri_name);
#endif
if(p_http_request->TYPE == 0) // REST API request or Requested file type not found
{
table_num = search_http_resources(p_http_request->METHOD, uri_name); // get the resource table number
if(table_num < 0) // HTTP resource search failed
{
//content_type = HTTP_RES_TYPE_TEXT;
content_type = HTTP_RES_TYPE_JSON;
if(table_num == RESTAPI_ERROR_RESOURCE_NOT_FOUND) status_code = HTTP_RES_CODE_NOT_FOUND; // uri unmatched
if(table_num == RESTAPI_ERROR_METHOD_NOT_ALLOWED) status_code = HTTP_RES_CODE_NOT_ALLOWED; // uri matched but not supported method
else status_code = HTTP_RES_CODE_NOT_FOUND;
}
else // HTTP resource search success
{
// REST API function handler
// If necessary, generating JSON object of HTTP response body and copy the object to send buffer(http_response_body)
content_len = http_resources_handler(p_http_request, http_response_body, table_num, status_code);
// content_len variable: content body length or API handling results (e.g., http error)
if(content_len == 1)
{
content_type = HTTP_RES_TYPE_JSON;
status_code = HTTP_RES_CODE_CREATED;
content_len = 0;
}
else if(content_len > 0)
{
content_type = HTTP_RES_TYPE_JSON;
status_code = HTTP_RES_CODE_OK;
}
else if(content_len == 0)
{
content_type = HTTP_RES_TYPE_JSON;
status_code = HTTP_RES_CODE_NO_CONTENT;
}
else if(content_len == RESTAPI_ERROR_CONFLICT)
{
content_type = HTTP_RES_TYPE_JSON;
status_code = HTTP_RES_CODE_CONFLICT;
}
else
{
content_type = HTTP_RES_TYPE_JSON;
status_code = HTTP_RES_CODE_NOT_FOUND;
}
}
}
else
{
// GET method: find requested file in storage (not implemented), //e.g., if(search_http_storage(...))...
// If the size of the requested file is larger than the buffer size, use the file_len / file_offset field in HTTPSock statuc
// Other methods: return 'content not found'
content_type = HTTP_RES_TYPE_JSON;
status_code = HTTP_RES_CODE_NOT_FOUND;
}
// HTTP response error codes; 4xx or 5xx
// Generate the JSON body {"message": "xxxxxx", "code": xxx}
if(((status_code & HTTP_RES_CODE_BAD_REQUEST) == HTTP_RES_CODE_BAD_REQUEST) || ((status_code & HTTP_RES_CODE_INT_SERVER) == HTTP_RES_CODE_INT_SERVER))
{
// Generating JSON object of HTTP Error messages
// e.g., {"errors":{ "error" : { "message":"Method not allowed", "code":404 } }
content_len = make_http_response_error_message(http_response_body, status_code);
}
// Generate and Send the HTTP response 'header'
send_http_response_header(sock, http_response, content_type, content_len, status_code);
// If necessary, Send the HTTP response 'body'
if(p_http_request->METHOD != HTTP_REQ_METHOD_HEAD)
{
if(content_len > 0) send_http_response_body(sock, http_response_body, content_len);
}
}
