gol razo
0
Dependencies: EthernetInterface FatFileSystem SDFileSystem mbed-rtos mbed
Revision 0:552dbf78352a, committed 2015-05-28
- Comitter:
- jys1
- Date:
- Thu May 28 13:08:20 2015 +0000
- Commit message:
- 0
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/EthernetInterface.lib Thu May 28 13:08:20 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/EthernetInterface/#2fc406e2553f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/FatFileSystem.lib Thu May 28 13:08:20 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/AdamGreen/code/FatFileSystem/#6ceefe1c53e4
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Thu May 28 13:08:20 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/SomeRandomBloke/code/SDFileSystem/#9c5f0c655284
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Thu May 28 13:08:20 2015 +0000
@@ -0,0 +1,265 @@
+#include "mbed.h"
+#include "SDFileSystem.h"
+#include "EthernetInterface.h"
+
+#include <stdio.h>
+#include <string.h>
+
+#define PORT 80
+
+EthernetInterface eth;
+
+TCPSocketServer svr;
+bool serverIsListened = false;
+
+TCPSocketConnection client;
+bool clientIsConnected = false;
+
+DigitalOut led1(LED1); // 서버 응답 상태
+DigitalOut led2(LED2); // 소켓 연결 상태
+DigitalOut SIGNAL_LED(D13); // 신호 출력용
+
+Ticker led_tick;
+
+Serial pc(USBTX, USBRX);
+SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd"); // MOSI, MISO, SCK, CS
+
+/* --------------------------------------------
+ * 문자열이 해당 패턴으로 끝나는지 판단하는 함수
+ *
+ * 성공하면 1 반환, 실패하면 0 반환
+ * -------------------------------------------*/
+int str_ends_with(const char *str, const char *suffix)
+{
+
+ if (str == NULL || suffix == NULL)
+ return 0;
+
+ size_t str_len = strlen(str);
+ size_t suffix_len = strlen(suffix);
+
+ if (suffix_len > str_len)
+ return 0;
+
+ return (strncmp(str + str_len - suffix_len, suffix, suffix_len) == 0);
+}
+
+/* --------------------------------------------
+ * LED 점멸 함수
+ * -------------------------------------------*/
+void led_tick_func(void)
+{
+ if (serverIsListened) {
+ led1 = !led1;
+ }
+ else {
+ led1 = false;
+ }
+}
+
+/* --------------------------------------------
+ * TCP Socket 서버 설정 함수
+ *
+ * 성공하면 0 반환, 실패하면 그 외의 값 반환
+ * -------------------------------------------*/
+int init_server(void)
+{
+ // ethernet interface 설정
+ eth.init(); // DHCP 사용
+ eth.connect(); // 연결
+ // 연결에 성공하면 IP 주소 출력
+ printf("IP Address is %s\r\n", eth.getIPAddress());
+ if (strlen(eth.getIPAddress()) == 0)
+ return -1;
+ // tcp socket 설정 (포트번호: 80)
+ if (svr.bind(PORT) < 0) {
+ printf("tcp server bind failed.\r\n");
+ return -2;
+ }
+ else {
+ printf("tcp server bind successed.\r\n");
+ serverIsListened = true;
+ }
+ if (svr.listen(1) < 0) {
+ printf("tcp server listen failed.\r\n");
+ return -3;
+ }
+ else {
+ printf("tcp server is listening...\r\n");
+ }
+ return 0;
+}
+
+/* --------------------------------------------
+ * 입력 스트링에서 URL 부분만 잘라서 반환
+ * -------------------------------------------*/
+char* get_url(char* buffer)
+{
+ size_t len = strlen(buffer);
+ for (int i = 0; i < len; i++) {
+ if ((buffer[i] == ' ') || (buffer[i] == '\t')) {
+ buffer[i] = '\0';
+ break;
+ }
+ }
+ return buffer;
+}
+
+/* --------------------------------------------
+ * HTTP 응답 함수
+ * -------------------------------------------*/
+void make_response(char* buffer)
+{
+ FILE* fp;
+ //setup http response header & data
+ char echoHeader[256] = {};
+ char filename[1024] = {};
+ char resbuffer[1024];
+ char* url = get_url(buffer);
+
+ // URL이 /ON 이면 SIGNAL_LED ON
+ if ((strcmp(url, "/ON") == 0) ||
+ (strcmp(url, "/on") == 0)) {
+ SIGNAL_LED = 1;
+ url = (char*)"/led-on.html";
+ }
+
+ // URL이 /OFF 이면 SIGNAL_LED OFF
+ if ((strcmp(url, "/OFF") == 0) ||
+ (strcmp(url, "/off") == 0)) {
+ SIGNAL_LED = 0;
+ url = (char*)"/led-off.html";
+ }
+
+ // SD Card 상의 파일명으로 매치
+ sprintf(filename, "/sd/www%s", url);
+ printf("URL = [%s]\r\n", url);
+ printf("FILE NAME = [%s]\r\n", filename);
+
+ // URL에 파일명이 없으면 index.html로 매칭
+ if (strcmp(filename, "/sd/www/") == 0)
+ sprintf(filename, "/sd/www/index.html");
+
+ printf("FINAL FILE NAME = [%s]\r\n", filename);
+
+ // html page open
+ fp = fopen(filename, "r");
+ if (!fp) {
+ // 파일을 찾을 수 없으면 404 에러 메시지 출력
+ sprintf(echoHeader, "HTTP/1.1 404 Not Found\r\n"
+ "Content-Length: 16\r\n"
+ "Content-Type: text/html\r\n"
+ "Connection: Close\r\n\r\n");
+ client.send(echoHeader, strlen(echoHeader));
+ client.send((char*)"FILE NOT FOUND\r\n", 16);
+ clientIsConnected = false;
+ printf("echo back done.\r\n");
+ return;
+ }
+
+ // 파일 크기 출력
+ fseek(fp, 0L, SEEK_END);
+ size_t sz = ftell(fp);
+ printf("file size = %d\r\n", sz);
+
+ // 응답 헤더
+ sprintf(echoHeader, "HTTP/1.1 200 OK\r\nContent-Length: %d\r\n", sz);
+ client.send(echoHeader, strlen(echoHeader));
+
+ // 파일 종류에 따른 응답 헤더 (Content-Type)
+ if (str_ends_with(url, ".html") || str_ends_with(url, ".htm")) {
+ sprintf(echoHeader, "Content-Type: text/html\r\n");
+ }
+ else if (str_ends_with(url, ".css")) {
+ sprintf(echoHeader, "Content-Type: text/css\r\n");
+ }
+ else if (str_ends_with(url, ".png")) {
+ sprintf(echoHeader, "Content-Type: image/png\r\n");
+ }
+ else if (str_ends_with(url, ".jpg")) {
+ sprintf(echoHeader, "Content-Type: image/jpeg\r\n");
+ }
+ else if (str_ends_with(url, ".gif")) {
+ sprintf(echoHeader, "Content-Type: image/gif\r\n");
+ }
+ else if (str_ends_with(url, ".3gp")) {
+ sprintf(echoHeader, "Content-Type: video/mpeg\r\n");
+ }
+ else if (str_ends_with(url, ".pdf")) {
+ sprintf(echoHeader, "Content-Type: application/pdf\r\n");
+ }
+ else if (str_ends_with(url, ".js")) {
+ sprintf(echoHeader, "Content-Type: application/x-javascript\r\n");
+ }
+ else if (str_ends_with(url, ".xml")) {
+ sprintf(echoHeader, "Content-Type: application/xml\r\n");
+ }
+ else {
+ sprintf(echoHeader, "Content-Type: text\r\n");
+ }
+ client.send(echoHeader, strlen(echoHeader));
+
+ sprintf(echoHeader, "Connection: Close\r\n\r\n");
+ client.send(echoHeader, strlen(echoHeader));
+
+ // 파일 내용을 읽어서 클라이언트로 전송
+ fseek(fp, 0L, SEEK_SET);
+ size_t n = 1;
+ while (n) {
+ n = fread(resbuffer, sizeof(char), 1023, fp);
+ resbuffer[n] = '\0';
+ client.send(resbuffer, n);
+ }
+ fclose(fp);
+ clientIsConnected = false;
+ printf("echo back done.\r\n");
+}
+
+int main(void)
+{
+ pc.baud(115200);
+ led_tick.attach(&led_tick_func, 0.5);
+
+ if (init_server() < 0) {
+ printf("HTTP Server initization failed...\r\n");
+ for (;;) ;
+ }
+
+ //listening for http GET request
+ while (serverIsListened) {
+ //blocking mode(never timeout)
+ if (svr.accept(client) < 0) {
+ printf("failed to accept connection.\r\n");
+ }
+ else {
+ printf("connection success!\r\nIP: %s\r\n",client.get_address());
+ clientIsConnected = true;
+ led2 = true;
+
+ while (clientIsConnected) {
+ char buffer[1024] = {};
+ switch (client.receive(buffer, 1023)) {
+ case 0:
+ printf("recieved buffer is empty.\r\n");
+ clientIsConnected = false;
+ break;
+ case -1:
+ printf("failed to read data from client.\r\n");
+ clientIsConnected = false;
+ break;
+ default:
+ printf("Recieved Data: %d\r\n\r\n%.*s\r\n",
+ strlen(buffer),strlen(buffer),buffer);
+ if (buffer[0] == 'G' && buffer[1] == 'E' && buffer[2] == 'T') {
+ printf("GET request incomming.\r\n");
+ make_response(buffer+4);
+ }
+ break;
+ }
+ }
+ printf("close connection.\r\ntcp server is listening...\r\n");
+ client.close();
+ led2 = false;
+ }
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed-rtos.lib Thu May 28 13:08:20 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed-rtos/#2db19f47c2ba
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu May 28 13:08:20 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/cbbeb26dbd92 \ No newline at end of file