Implement Nitro Feature for macOS

G-Earth/src/main/java/gearth/protocol/connection/proxy/nitro/os/NitroOsFunctionsFactory.java

@@ -1,6 +1,7 @@
 package gearth.protocol.connection.proxy.nitro.os;
 
 import gearth.misc.OSValidator;
+import gearth.protocol.connection.proxy.nitro.os.macos.NitroMacOS;
 import gearth.protocol.connection.proxy.nitro.os.windows.NitroWindows;
 import org.apache.commons.lang3.NotImplementedException;
 
@@ -15,7 +16,10 @@ public final class NitroOsFunctionsFactory {
             throw new NotImplementedException("unix nitro is not implemented yet");
         }
 
-        throw new NotImplementedException("macOS nitro is not implemented yet");
-    }
+        if (OSValidator.isMac()) {
+            return new NitroMacOS();
+        }
 
+        throw new NotImplementedException("unsupported operating system");
+    }
 }

G-Earth/src/main/java/gearth/protocol/connection/proxy/nitro/os/macos/NitroMacOS.java

@@ -0,0 +1,97 @@
+package gearth.protocol.connection.proxy.nitro.os.macos;
+
+import gearth.misc.RuntimeUtil;
+import gearth.protocol.connection.proxy.nitro.os.NitroOsFunctions;
+
+import java.io.File;
+import java.io.IOException;
+
+public class NitroMacOS implements NitroOsFunctions {
+
+    /**
+     * Semicolon separated hosts to ignore for proxying.
+     */
+    private static final String PROXY_IGNORE = "discord.com;discordapp.com;github.com;";
+
+    /**
+     * Checks if the certificate is trusted by the local machine.
+     * @param certificate Absolute path to the certificate.
+     * @return true if trusted
+     */
+    @Override
+    public boolean isRootCertificateTrusted(File certificate) {
+        try {
+            final String output = RuntimeUtil.getCommandOutput(new String[] {"sh", "-c", "security verify-cert -c \"" + certificate.getAbsolutePath() + "\""});
+
+            return !output.contains("CSSMERR_TP_NOT_TRUSTED");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean installRootCertificate(File certificate) {
+        final String certificatePath = certificate.getAbsolutePath();
+
+        try {
+            // Install the certificate
+            Process process = new ProcessBuilder("sh", "-c", "sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain \"" + certificatePath + "\"")
+                    .inheritIO()
+                    .start();
+            
+            // Wait for the process to complete
+            int exitCode = process.waitFor();
+            if (exitCode != 0) {
+                System.out.printf("security add-trusted-cert command exited with exit code %d%n", exitCode);
+                return false;
+            }
+
+            return true;
+        } catch (IOException | InterruptedException e) {
+            e.printStackTrace();
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean registerSystemProxy(String host, int port) {
+        try {
+            final String proxy = String.format("%s:%d", host, port);
+            final String[] ignoreHosts = PROXY_IGNORE.split(";");
+
+            // Enable proxy
+            Runtime.getRuntime().exec("networksetup -setwebproxy Wi-Fi " + host + " " + port);
+            Runtime.getRuntime().exec("networksetup -setsecurewebproxy Wi-Fi " + host + " " + port);
+
+            // Set proxy bypass domains
+            for (String ignoreHost : ignoreHosts) {
+                Runtime.getRuntime().exec("networksetup -setproxybypassdomains Wi-Fi " + ignoreHost);
+            }
+
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean unregisterSystemProxy() {
+        try {
+            // Disable proxy
+            Runtime.getRuntime().exec("networksetup -setwebproxystate Wi-Fi off");
+            Runtime.getRuntime().exec("networksetup -setsecurewebproxystate Wi-Fi off");
+
+            return true;
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        return false;
+    }
+
+}