Joe Danlloh
f
Fork of
lwip
by 
mbed unsupported
Diff: examples/simplehttpd/main.cpp
- Revision:
- 0:5e1631496985
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/simplehttpd/main.cpp Tue May 08 15:32:10 2012 +0100
@@ -0,0 +1,127 @@
+#include "TCPCallbackConnection.h"
+#include "NetServer.h"
+#include "mbed.h"
+
+/* Some Lights */
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+int x = 0;
+
+/* Two static html pages ready for serving, includeing http header */
+const char *page[] = {
+ "HTTP/1.1 200 OK\r\n"
+ "Server:mbed embedded\r\n"
+ "Content-Type: text/html\r\n"
+ "Content-Length: 190\r\n"
+ "\r\n"
+ "<html>\r\n"
+ " <header>\r\n"
+ " <title>Whats up?<title>\r\n"
+ " </header>\r\n"
+ " <body>\r\n"
+ " <h1>Hello World!!11elf</h1>\r\n"
+ " <p>Have a greate day.</p>\r\n"
+ " <a href=\"/1.html\">turn </a>\r\n"
+ " </body>\r\n"
+ "</html>\r\n"
+ "\r\n"
+ ,
+ "HTTP/1.1 200 OK\r\n"
+ "Server:mbed embedded\r\n"
+ "Content-Type: text/html\r\n"
+ "Content-Length: 178\r\n"
+ "\r\n"
+ "<html>\r\n"
+ " <header>\r\n"
+ " <title>LED Power<title>\r\n"
+ " </header>\r\n"
+ " <body>\r\n"
+ " <h1>Lets rotate!!11elf</h1>\r\n"
+ " <p>Bam!!!!!!!!!!.</p>\r\n"
+ " <a href=\"/\">back</a>\r\n"
+ " </body>\r\n"
+ "</html>\r\n"
+ "\r\n"
+};
+
+/* Every time called if a packet is received for a */
+/* TCPConnection which registerd this Callback. */
+err_t recv_callback(TCPCallbackConnection *arg, struct pbuf *p, err_t err) {
+ int i;
+ char *data;
+
+ /* Check if status is ok and data is arrived. */
+ if (err == ERR_OK && p != NULL) {
+ /* Inform TCP that we have taken the data. */
+ arg->recved(p->tot_len);
+ data = static_cast<char *>(p->payload);
+
+ /* If the data is a GET request we can handle it. */
+ if (strncmp(data, "GET ", 4) == 0) {
+ for (i = 0; i < 40; i++) {
+ if (((char *)data + 4)[i] == ' ' ||
+ ((char *)data + 4)[i] == '\r' ||
+ ((char *)data + 4)[i] == '\n') {
+ ((char *)data + 4)[i] = 0;
+ }
+ }
+
+ /* Check the URL */
+ /* We only know two URLs /1.html and default */
+ /* store the URL information in our global x variable to change twinkle behaviour. */
+ x = (strncmp((char *)(data + 4), "/1.html", 7) == 0)? 1: 0;
+ /* Clean up the Memory */
+
+ /* Send the right page as answere. */
+ if (arg->write((void *)page[x], strlen(page[x])) != ERR_OK) {
+ error("Could not write", 0);
+ }
+ } else {
+ /* This message was not a GET request.
+ Maybe it was a follow message or another kind of request. */
+ }
+ } else {
+ /* No data arrived */
+ /* That means the client closes the connection and sent us a packet with FIN flag set to 1. */
+ /* We have to cleanup and destroy out TCPConnection. */
+ arg->close();
+ NetServer::get()->free(arg);
+ }
+
+ pbuf_free(p);
+ /* Don't panic! Everything is fine. */
+ return ERR_OK;
+}
+
+/* Accept an incomming call on the registered port */
+err_t accept_callback(TCPCallbackListener *arg, struct tcp_pcb *npcb, err_t err) {
+ /* Create a new TCPConnection for the new incomming call. */
+ TCPCallbackConnection *con = new TCPCallbackConnection((TCPListener *)arg, npcb,
+ NO_SENT_FNC,
+ &recv_callback, /* set only a callback for receiving data. */
+ NO_POLL_FNC,
+ NO_CONNECT_FNC,
+ NO_ERR_FNC
+ );
+
+ /* Don't panic! Everything is fine. */
+ return ERR_OK;
+}
+
+int main(void) {
+ /* Bind a function to a tcp port */
+ NetServer::ready()->bindTCPPort(80, &accept_callback);
+
+ /* Give the signal that we are ready */
+ printf("entering while loop\n");
+ while (1) {
+ wait(0.1);
+ NetServer::poll();
+ if (x) {
+ led1 = !led1;
+ } else {
+ led2 = !led2;
+ }
+ }
+}
+