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Converted tabs to spaces; fixed indentation
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@ -2,61 +2,61 @@ const static char http_html_hdr[] = "HTTP/1.1 200 OK\r\nContent-type: text/html\
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const static char http_index_html[] = "<html><head><title>Congrats!</title></head><body><h1>Welcome to our lwIP HTTP server!</h1><p>This is a small test page.</body></html>";
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void http_server_serve(struct netconn *conn) {
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struct netbuf *inbuf;
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char *buf;
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u16_t buflen;
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struct netbuf *inbuf;
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char *buf;
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u16_t buflen;
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/* Read the data from the port, blocking if nothing yet there.
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We assume the request (the part we care about) is in one netbuf */
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inbuf = netconn_recv(conn);
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/* Read the data from the port, blocking if nothing yet there.
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We assume the request (the part we care about) is in one netbuf */
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inbuf = netconn_recv(conn);
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if (conn->err == ERR_OK) {
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netbuf_data(inbuf, &buf, &buflen);
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if (conn->err == ERR_OK) {
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netbuf_data(inbuf, &buf, &buflen);
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/* Is this an HTTP GET command? (only check the first 5 chars, since
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there are other formats for GET, and we're keeping it very simple )*/
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if (buflen>=5 &&
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buf[0]=='G' &&
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buf[1]=='E' &&
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buf[2]=='T' &&
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buf[3]==' ' &&
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buf[4]=='/' ) {
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/* Is this an HTTP GET command? (only check the first 5 chars, since
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there are other formats for GET, and we're keeping it very simple )*/
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if (buflen>=5 &&
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buf[0]=='G' &&
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buf[1]=='E' &&
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buf[2]=='T' &&
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buf[3]==' ' &&
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buf[4]=='/' ) {
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/* Send the HTML header
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/* Send the HTML header
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* subtract 1 from the size, since we dont send the \0 in the string
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* NETCONN_NOCOPY: our data is const static, so no need to copy it
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*/
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netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY);
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*/
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netconn_write(conn, http_html_hdr, sizeof(http_html_hdr)-1, NETCONN_NOCOPY);
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/* Send our HTML page */
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netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY);
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}
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/* Send our HTML page */
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netconn_write(conn, http_index_html, sizeof(http_index_html)-1, NETCONN_NOCOPY);
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}
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/* Close the connection (server closes in HTTP) */
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netconn_close(conn);
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}
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/* Close the connection (server closes in HTTP) */
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netconn_close(conn);
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/* Delete the buffer (netconn_recv gives us ownership,
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so we have to make sure to deallocate the buffer) */
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netbuf_delete(inbuf);
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/* Delete the buffer (netconn_recv gives us ownership,
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so we have to make sure to deallocate the buffer) */
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netbuf_delete(inbuf);
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}
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int http_server() {
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struct netconn *conn, *newconn;
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struct netconn *conn, *newconn;
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/* Create a new TCP connection handle */
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conn = netconn_new(NETCONN_TCP);
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LWIP_ERROR("http_server: invalid conn", (conn != NULL), return -1;);
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/* Create a new TCP connection handle */
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conn = netconn_new(NETCONN_TCP);
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LWIP_ERROR("http_server: invalid conn", (conn != NULL), return -1;);
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/* Bind to port 80 (HTTP) with default IP address */
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netconn_bind(conn, NULL, 80);
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/* Bind to port 80 (HTTP) with default IP address */
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netconn_bind(conn, NULL, 80);
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/* Put the connection into LISTEN state */
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netconn_listen(conn);
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/* Put the connection into LISTEN state */
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netconn_listen(conn);
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while(1) {
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newconn = netconn_accept(conn);
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http_server_serve(newconn);
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netconn_delete(newconn);
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}
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return 0;
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while(1) {
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newconn = netconn_accept(conn);
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http_server_serve(newconn);
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netconn_delete(newconn);
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}
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return 0;
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}
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