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;
}
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;
}
}
static void send_http_response_body(uint8_t s, uint8_t * uri_name, uint8_t * buf, uint32_t start_addr, uint32_t file_len)
{
int8_t get_seqnum;
uint32_t send_len;
uint8_t flag_datasend_end = 0;
#ifdef _USE_SDCARD_
uint16_t blocklen;
#endif
#ifdef _USE_FLASH_
uint32_t addr = 0;
#endif
if((get_seqnum = getHTTPSequenceNum(s)) == -1) return; // exception handling; invalid number
// Send the HTTP Response 'body'; requested file
if(!HTTPSock_Status[get_seqnum].file_len) // ### Send HTTP response body: First part ###
{
if (file_len > DATA_BUF_SIZE - 1)
{
HTTPSock_Status[get_seqnum].file_start = start_addr;
HTTPSock_Status[get_seqnum].file_len = file_len;
send_len = DATA_BUF_SIZE - 1;
/////////////////////////////////////////////////////////////////////////////////////////////////
// ## 20141219 Eric added, for 'File object structure' (fs) allocation reduced (8 -> 1)
memset(HTTPSock_Status[get_seqnum].file_name, 0x00, MAX_CONTENT_NAME_LEN);
strcpy((char *)HTTPSock_Status[get_seqnum].file_name, (char *)uri_name);
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : HTTP Response body - file name [ %s ]\r\n", s, HTTPSock_Status[get_seqnum].file_name);
#endif
/////////////////////////////////////////////////////////////////////////////////////////////////
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : HTTP Response body - file len [ %ld ]byte\r\n", s, file_len);
#endif
}
else
{
// Send process end
send_len = file_len;
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : HTTP Response end - file len [ %ld ]byte\r\n", s, send_len);
#endif
}
#ifdef _USE_FLASH_
if(HTTPSock_Status[get_seqnum].storage_type == DATAFLASH) addr = start_addr;
#endif
}
else // remained parts
{
#ifdef _USE_FLASH_
if(HTTPSock_Status[get_seqnum].storage_type == DATAFLASH)
{
addr = HTTPSock_Status[get_seqnum].file_start + HTTPSock_Status[get_seqnum].file_offset;
}
#endif
send_len = HTTPSock_Status[get_seqnum].file_len - HTTPSock_Status[get_seqnum].file_offset;
if(send_len > DATA_BUF_SIZE - 1)
{
send_len = DATA_BUF_SIZE - 1;
//HTTPSock_Status[get_seqnum]->file_offset += send_len;
}
else
{
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : HTTP Response end - file len [ %ld ]byte\r\n", s, HTTPSock_Status[get_seqnum].file_len);
#endif
// Send process end
flag_datasend_end = 1;
}
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : HTTP Response body - send len [ %ld ]byte\r\n", s, send_len);
#endif
}
/*****************************************************/
//HTTPSock_Status[get_seqnum]->storage_type == NONE
//HTTPSock_Status[get_seqnum]->storage_type == CODEFLASH
//HTTPSock_Status[get_seqnum]->storage_type == SDCARD
//HTTPSock_Status[get_seqnum]->storage_type == DATAFLASH
/*****************************************************/
if(HTTPSock_Status[get_seqnum].storage_type == CODEFLASH)
{
if(HTTPSock_Status[get_seqnum].file_len) start_addr = HTTPSock_Status[get_seqnum].file_start;
read_userReg_webContent(start_addr, &buf[0], HTTPSock_Status[get_seqnum].file_offset, send_len);
}
#ifdef _USE_SDCARD_
else if(HTTPSock_Status[get_seqnum].storage_type == SDCARD)
{
// Data read from SD Card
fr = f_read(&fs, &buf[0], send_len, (void *)&blocklen);
if(fr != FR_OK)
{
send_len = 0;
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [FatFs] Error code return: %d (File Read) / HTTP Send Failed - %s\r\n", s, fr, HTTPSock_Status[get_seqnum].file_name);
#endif
}
else
{
*(buf+send_len+1) = 0; // Insert '/0' for indicates the 'End of String' (null terminated)
}
}
#endif
#ifdef _USE_FLASH_
else if(HTTPSock_Status[get_seqnum].storage_type == DATAFLASH)
{
// Data read from external data flash memory
read_from_flashbuf(addr, &buf[0], send_len);
*(buf+send_len+1) = 0; // Insert '/0' for indicates the 'End of String' (null terminated)
}
#endif
else
{
send_len = 0;
}
// Requested content send to HTTP client
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : [Send] HTTP Response body [ %ld ]byte\r\n", s, send_len);
#endif
if(send_len) send(s, buf, send_len);
else flag_datasend_end = 1;
if(flag_datasend_end)
{
HTTPSock_Status[get_seqnum].file_start = 0;
HTTPSock_Status[get_seqnum].file_len = 0;
HTTPSock_Status[get_seqnum].file_offset = 0;
flag_datasend_end = 0;
}
else
{
HTTPSock_Status[get_seqnum].file_offset += send_len;
#ifdef _HTTPSERVER_DEBUG_
printf("> HTTPSocket[%d] : HTTP Response body - offset [ %ld ]\r\n", s, HTTPSock_Status[get_seqnum].file_offset);
#endif
}
// ## 20141219 Eric added, for 'File object structure' (fs) allocation reduced (8 -> 1)
#ifdef _USE_SDCARD_
f_close(&fs);
#endif
// ## 20141219 added end
}
/* 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
}
