Jonas Nimb
Webserver controller with url trimming for value controls
Dependencies: LCD_DISCO_F746NG BSP_DISCO_F746NG
Diff: main.cpp
- Revision:
- 8:47b0cb4b5b7d
- Parent:
- 7:02a0635aeeac
- Child:
- 9:161bed13b17e
--- a/main.cpp Tue Jan 16 08:21:04 2018 +0000
+++ b/main.cpp Tue Oct 30 16:41:15 2018 +0000
@@ -4,35 +4,36 @@
#include "TCPSocket.h"
#include <stdio.h>
#include <string>
-
+
using namespace std;
-
+
#define IP "192.168.1.181"
#define GATEWAY "192.168.1.1"
-#define MASK "255.255.255.0"
-
+#define NETMASK "255.255.255.0"
+
+
+#define PORT 80
+
+EthernetInterface* net;
-#define PORT 80
-
-EthernetInterface ethernet;
TCPServer server;
TCPSocket clientSocket;
SocketAddress clientAddress;
char receiveBuf[1024] = { };
-
+
const int OFF = 0;
const int ON = 1;
-
+
DigitalOut sw(LED1);
float roomTemp = 21.8; // A temperature sensor output
-
+
const string PASSWORD = "secret"; // change as you like
const string HTTP_OK = "HTTP/1.0 200 OK";
const string MOVED_PERM = "HTTP/1.0 301 Moved Permanently\r\nLocation: ";
const string UNAUTHORIZED = "HTTP/1.0 401 Unauthorized";
string httpHeader; // HTTP header
string httpContent; // HTTP content
-
+
/**
* @brief Defines a custom MAC address
* @note Uncomment the code below to define a unique MAC address.
@@ -48,7 +49,7 @@
// mac[4] = 0x04;
// mac[5] = 0x05;
//};
-
+
/**
* @brief Analyses the received URL
* @note The string passed to this function will look like this:
@@ -66,26 +67,26 @@
int8_t analyseURL(string& url) {
if(url.substr(5, PASSWORD.size()) != PASSWORD)
return(-1);
-
+
uint8_t pos = 5 + PASSWORD.size();
-
+
if(url.substr(pos, 1) == " ")
return(-2);
-
+
if(url.substr(pos++, 1) != "/")
return(-1);
-
+
string cmd(url.substr(pos, 5));
-
+
if(cmd == "?sw=0")
return(0);
-
+
if(cmd == "?sw=1")
return(1);
-
+
return(-3);
}
-
+
/**
* @brief
* @note
@@ -97,12 +98,12 @@
httpContent = "/" + PASSWORD + "/";
else
httpContent = "";
-
+
httpContent += "<h1>301 Moved Permanently</h1>\r\n";
-
+
return(httpContent);
}
-
+
/**
* @brief
* @note
@@ -111,23 +112,23 @@
*/
string& showWebPage(uint8_t status) {
char roomTempStr[5];
-
+
//roomTemp = ds1820.read();
sprintf(roomTempStr, "%3.1f", roomTemp);
-
+
// CSS toggle switch
httpContent = "<head>";
httpContent += "<style>";
-
+
httpContent += ".switch {";
httpContent += "position: relative;";
httpContent += "display: inline-block;";
httpContent += "width: 60px;";
httpContent += "height: 34px;";
httpContent += "}";
-
+
httpContent += ".switch input {display:none;}";
-
+
httpContent += ".slider {";
httpContent += "position: absolute;";
httpContent += "cursor: pointer;";
@@ -140,7 +141,7 @@
httpContent += "-webkit-transition: .4s;";
httpContent += "transition: .4s;";
httpContent += "}";
-
+
httpContent += ".slider:before {";
httpContent += "position: absolute;";
httpContent += "content: \"\";";
@@ -153,29 +154,29 @@
httpContent += "-webkit-transition: .4s;";
httpContent += "transition: .4s;";
httpContent += "}";
-
+
httpContent += "input:checked + .slider {";
httpContent += "background-color: #8ce196;";
httpContent += "}";
-
+
httpContent += "input:focus + .slider {";
httpContent += "box-shadow: 0 0 1px #8ce196;";
httpContent += "}";
-
+
httpContent += "input:checked + .slider:before {";
httpContent += "-webkit-transform: translateX(26px);";
httpContent += "-ms-transform: translateX(26px);";
httpContent += "transform: translateX(26px);";
httpContent += "}";
-
+
httpContent += "</style>";
httpContent += "</head>";
-
+
httpContent += "<body>";
httpContent += "<h2><a href=\".\" title=\"Click to refresh the page\">Smart Home</a></h2>";
httpContent += "<pre>Temperature:\t" + string(roomTempStr) + "°C</pre>";
httpContent += "<pre>Heating:\t";
-
+
if(status == ON) {
httpContent += "<a href=\"./?sw=0\" class=\"switch\"> ";
httpContent += "<input type=\"checkbox\" checked>";
@@ -184,16 +185,16 @@
httpContent += "<a href=\"./?sw=1\" class=\"switch\"> ";
httpContent += "<input type=\"checkbox\">";
}
-
+
httpContent += "<div class=\"slider\"></div>";
httpContent += "</a></pre>";
httpContent += "<hr>";
httpContent += "<pre>2017 armMBED</pre>";
httpContent += "</body>";
-
+
return httpContent;
}
-
+
/**
* @brief
* @note
@@ -202,7 +203,7 @@
*/
void sendHTTP(TCPSocket& client, string& header, string& content) {
char content_length[5] = { };
-
+
header += "\r\nContent-Type: text/html\r\n";
header += "Content-Length: ";
sprintf(content_length, "%d", content.length());
@@ -210,12 +211,12 @@
header += "Pragma: no-cache\r\n";
header += "Connection: About to close\r\n";
header += "\r\n";
-
+
string webpage = header + content;
client.send((char*)webpage.c_str(), webpage.length());
printf("HTTP sent.\n\r");
}
-
+
/**
* @brief
* @note
@@ -223,21 +224,43 @@
* @retval
*/
int main(void) {
-// ethernet.set_network("192.168.1.181","255.255.255.0","192.168.1.1"); // use static IP address, netmask, gateway
- ethernet.connect();
- printf("Usage: Type %s/%s/ into your web browser and hit ENTER\r\n", ethernet.get_ip_address(), PASSWORD.c_str());
- const char *mac = ethernet.get_mac_address();
- printf("MAC address is: %s\n\r", mac ? mac : "No MAC");
+ printf("Starting\r\n");
+
+ //net = NetworkInterface::get_default_instance();
+
+ net = new EthernetInterface();
+
+ if (!net) {
+ printf("Error! No network inteface found.\n");
+ return 0;
+ }
- /* Open the server on ethernet stack */
- server.open(ðernet);
+ //net->set_network (IP, NETMASK, GATEWAY); // include this for using static IP address
+
+ nsapi_size_or_error_t r = net->connect();
+ if (r != 0) {
+ printf("Error! net->connect() returned: %d\n", r);
+ return r;
+ }
+ // Show the network address
+ const char *ip = net->get_ip_address();
+ const char *netmask = net->get_netmask();
+ const char *gateway = net->get_gateway();
+ printf("IP address: %s\n", ip ? ip : "None");
+ printf("Netmask: %s\n", netmask ? netmask : "None");
+ printf("Gateway: %s\n", gateway ? gateway : "None");
+ printf("Usage: Type %s/%s/ into your web browser and hit ENTER\r\n", ip, PASSWORD.c_str());
+
+ /* Open the server on ethernet stack */
+ server.open(net);
+
/* Bind the HTTP port (TCP 80) to the server */
- server.bind(ethernet.get_ip_address(), 80);
-
+ server.bind(ip, 80);
+
/* Can handle 5 simultaneous connections */
server.listen(5);
-
+
//listening for http GET request
while(true) {
printf("=========================================\r\n");
@@ -246,49 +269,49 @@
printf("Connection succeeded!\n\rIP: %s\n\r", clientAddress.get_ip_address());
clientSocket.recv(receiveBuf, 1023);
printf("Recieved Data: %d\n\r\n\r%.*s\n\r", strlen(receiveBuf), strlen(receiveBuf), receiveBuf);
-
+
string received(receiveBuf);
-
+
if(received.substr(0, 3) != "GET") {
httpHeader = HTTP_OK;
httpContent = "<h1>200 OK</h1>";
sendHTTP(clientSocket, httpHeader, httpContent);
continue;
}
-
+
if(received.substr(0, 6) == "GET / ") {
httpHeader = HTTP_OK;
httpContent = "<p>Usage: Type http://ip_address/password/ into your web browser and hit ENTER</p>\r\n";
sendHTTP(clientSocket, httpHeader, httpContent);
continue;
}
-
+
int cmd = analyseURL(received);
-
+
if(cmd == -2) {
-
+
// redirect to the right base url
httpHeader = MOVED_PERM;
sendHTTP(clientSocket, httpHeader, movedPermanently(1));
continue;
}
-
+
if(cmd == -1) {
httpHeader = UNAUTHORIZED;
httpContent = "<h1>401 Unauthorized</h1>";
sendHTTP(clientSocket, httpHeader, httpContent);
continue;
}
-
+
if(cmd == ON) {
sw = ON; // turn the switch on
}
-
+
if(cmd == OFF) {
sw = OFF; // turn the switch off
}
-
+
httpHeader = HTTP_OK;
sendHTTP(clientSocket, httpHeader, showWebPage(sw));
}
-}
+}
\ No newline at end of file