Add public ip to wifi page

src/panel/wifi.cpp

@@ -97,7 +97,7 @@ void wifi::update_texture(){
 
     //show info about the network
     tgt.x = (SCREEN_WIDTH / 2) + 25;
-    tgt.y = 50;
+    tgt.y = 60;
     TTF_SizeText(board::getFont({ "Roboto_Mono/RobotoMono-Medium.ttf", 50 }),
             network_string.c_str(), &tgt.w, &tgt.h);
     SDL_RenderCopy(board::getRenderer(),
@@ -113,6 +113,31 @@ void wifi::update_texture(){
             board::getString(password_string.c_str(),
                 { "Roboto_Mono/RobotoMono-Medium.ttf", 50 }), NULL, &tgt);
 
+    //Get public ip address and display it
+    if(WIFI_SHOW_PUBLIC_IP){
+        std::string public_ip = "WAN IP: ";
+        CURL* curl;
+        curl = curl_easy_init();
+
+        if(curl){
+            CURLcode res;
+            curl_easy_setopt(curl, CURLOPT_URL, WIFI_PUBLIC_IP_URL);
+            curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, 
+                    dashboard::panel::curl_callback);
+            curl_easy_setopt(curl, CURLOPT_WRITEDATA, &public_ip);
+            res = curl_easy_perform(curl);
+            curl_easy_cleanup(curl);
+        } else {
+            public_ip += "Unkown";
+        }
+
+        tgt.y += tgt.h + 25;
+        TTF_SizeText(board::getFont({ "Roboto_Mono/RobotoMono-Medium.ttf", 50 }),
+                public_ip.c_str(), &tgt.w, &tgt.h);
+        SDL_RenderCopy(board::getRenderer(),
+                board::getString(public_ip.c_str(),
+                    { "Roboto_Mono/RobotoMono-Medium.ttf", 50 }), NULL, &tgt);
+    }
 
 
     SDL_SetRenderTarget(board::getRenderer(), NULL);
@@ -133,3 +158,9 @@ void wifi::initTexture(){
         SDL_SetTextureBlendMode(_texture, SDL_BLENDMODE_BLEND);
     }
 }
+
+size_t dashboard::panel::curl_callback(void* contents, size_t size, 
+        size_t nmemb, void* userp){
+    ((std::string*)userp)->append((char*)contents, size * nmemb);
+    return size * nmemb;
+}

src/panel/wifi.hpp

@@ -12,6 +12,8 @@
 #include <SDL2/SDL_image.h>
 #include <SDL2/SDL_ttf.h>
 
+#include <curl/curl.h>
+
 #include <iostream>
 
 namespace dashboard::panel {
@@ -26,6 +28,8 @@ namespace dashboard::panel {
         void update_texture();
         void initTexture();
     };
+
+    size_t curl_callback(void*, size_t, size_t, void*);
 }
 
 #include "../board.hpp"

src/panel/wifi_config.hpp

@@ -15,9 +15,16 @@ namespace dashboard::panel {
     //Due to the nature of this panel, this value is ignored
     constexpr size_t WIFI_UPDATE_INTERVAL = 60000;
 
+    //Set to true to have your public IP be shown on the wifi page
+    //Will make a curl request to WIFI_PUBLIC_IP_URL when the frame 
+    //is rendered. This this is a privacy concern disable this option
+    constexpr bool WIFI_SHOW_PUBLIC_IP = true;
+    constexpr char WIFI_PUBLIC_IP_URL[] = "http://ipinfo.io/ip";
+
     //All of the following options WILL be shown on the screen.
     //If this is a privacy concernt for you, set the value to be blank
     //(ie "") and it will not be shown
     constexpr char WIFI_NETWORK_NAME[] = "MyNetwork";
     constexpr char WIFI_NETWORK_PASS[] = "MyPassword";
+
 }