Add DNS field (#55)

Author: maakbaas

docs/wifi-manager.md

@@ -41,7 +41,7 @@ Returns the SSID to which the ESP8266 is connected. Returns an empty string if a
 
 ```c++
 void setNewWifi(String newSSID, String newPass);
-void setNewWifi(String newSSID, String newPass, String newIp, String newSub, String newGw);
+void setNewWifi(String newSSID, String newPass, String newIp, String newSub, String newGw, String newDns);
 ```
 Tries to connect to the WiFi network with SSID `newSSID` and password `newPass`. If this fails a reconnect to the known network will be attempted. If this also fails or if no previous network was known, a captive portal will be started. Alternatively the function can also be called with inputs for a static IP address if DHCP is not available.
 

gui/js/comp/WifiPage.js

@@ -24,10 +24,11 @@ export function WifiPage(props) {
         if (dhcpForm) {
             fetch(`${props.API}/api/wifi/set?ssid=${escape(document.getElementById("ssid").value.trim())}&pass=${escape(document.getElementById("pass").value.trim())}`, { method: "POST" });
         } else {
-            fetch(`${props.API}/api/wifi/setStatic?ssid=${escape(document.getElementById("ssid").value.trim())}&pass=${escape(document.getElementById("pass").value.trim())}&ip=${escape(document.getElementById("ip").value.trim())}&sub=${escape(document.getElementById("sub").value.trim())}&gw=${escape(document.getElementById("gw").value.trim())}`, { method: "POST" });
+            fetch(`${props.API}/api/wifi/setStatic?ssid=${escape(document.getElementById("ssid").value.trim())}&pass=${escape(document.getElementById("pass").value.trim())}&ip=${escape(document.getElementById("ip").value.trim())}&sub=${escape(document.getElementById("sub").value.trim())}&gw=${escape(document.getElementById("gw").value.trim())}&dns=${escape(document.getElementById("dns").value.trim())}`, { method: "POST" });
             document.getElementById("ip").value = "";
             document.getElementById("gw").value = "";
             document.getElementById("sub").value = "";
+            document.getElementById("dns").value = "";
             setDhcpForm(true);
         }
         document.getElementById("ssid").value = "";
@@ -47,6 +48,9 @@ export function WifiPage(props) {
             <p><label htmlFor="gw"><CornerDownRight /> Gateway:</label>
                 <input type="text" id="gw" name="gw" autoCapitalize="none" />
             </p>
+            <p><label htmlFor="dns"><CornerDownRight /> DNS:</label>
+                <input type="text" id="dns" name="dns" autoCapitalize="none" />
+            </p>
         </>;
     }    
 

src/WiFiManager.cpp

@@ -21,11 +21,12 @@ void WifiManager::begin(char const *apName)
     ip = IPAddress(configManager.internal.ip);
     gw = IPAddress(configManager.internal.gw);
     sub = IPAddress(configManager.internal.sub);
+    dns = IPAddress(configManager.internal.dns);
 
-    if (ip.isSet() && gw.isSet() && sub.isSet())
+    if (ip.isSet() || gw.isSet() || sub.isSet() || dns.isSet())
     {
         Serial.println(PSTR("Using static IP"));
-        WiFi.config(ip, gw, sub);
+        WiFi.config(ip, gw, sub, dns);
     }
 
     if (WiFi.SSID() != "")
@@ -60,6 +61,7 @@ void WifiManager::forget()
     ip = IPAddress();
     sub = IPAddress();
     gw = IPAddress();
+    dns = IPAddress();
 
     //make EEPROM empty
     storeToEEPROM();
@@ -75,18 +77,20 @@ void WifiManager::setNewWifi(String newSSID, String newPass)
     ip = IPAddress();
     sub = IPAddress();
     gw = IPAddress();
+    dns = IPAddress();
 
     reconnect = true;
 }
 
 //function to request a connection to new WiFi credentials
-void WifiManager::setNewWifi(String newSSID, String newPass, String newIp, String newSub, String newGw)
+void WifiManager::setNewWifi(String newSSID, String newPass, String newIp, String newSub, String newGw, String newDns)
 {
     ssid = newSSID;
     pass = newPass;
     ip.fromString(newIp);
     sub.fromString(newSub);
     gw.fromString(newGw);
+    dns.fromString(newDns);
 
     reconnect = true;
 }
@@ -97,7 +101,7 @@ void WifiManager::connectNewWifi(String newSSID, String newPass)
     delay(1000);
 
     //set static IP or zeros if undefined    
-    WiFi.config(ip, gw, sub);
+    WiFi.config(ip, gw, sub, dns);
 
     //fix for auto connect racing issue
     if (!(WiFi.status() == WL_CONNECTED && (WiFi.SSID() == newSSID)) || ip.v4() != configManager.internal.ip)

src/WiFiManager.h

@@ -15,6 +15,7 @@ class WifiManager
     IPAddress ip;
     IPAddress gw;
     IPAddress sub;
+    IPAddress dns;
     bool reconnect = false;
     bool inCaptivePortal = false;
     char const *captivePortalName;
@@ -31,7 +32,7 @@ public :
     bool isCaptivePortal();
     String SSID();
     void setNewWifi(String newSSID, String newPass);
-    void setNewWifi(String newSSID, String newPass, String newIp, String newSub, String newGw);
+    void setNewWifi(String newSSID, String newPass, String newIp, String newSub, String newGw, String newDns);
 };
 
 extern WifiManager WiFiManager;

src/configManager.h

@@ -13,6 +13,7 @@ struct internalData
     uint32_t ip;
     uint32_t gw;
     uint32_t sub;
+    uint32_t dns;
 };
 
 class config

src/generated/html.h

@@ -46,7 +46,7 @@ void webServer::bindAll()
     //update WiFi details with static IP
     server.on(PSTR("/api/wifi/setStatic"), HTTP_POST, [](AsyncWebServerRequest *request) {
         request->send(200, PSTR("text/html"), ""); //respond first because of wifi change
-        WiFiManager.setNewWifi(request->arg("ssid"), request->arg("pass"), request->arg("ip"), request->arg("sub"), request->arg("gw"));
+        WiFiManager.setNewWifi(request->arg("ssid"), request->arg("pass"), request->arg("ip"), request->arg("sub"), request->arg("gw"), request->arg("dns"));
     });
 
     //update WiFi details