feat: added NetUtil for web requests

Signed-off-by: moonleay <contact@moonleay.net>

src/main/kotlin/net/moonleay/lilJudd/util/NetUtil.kt

@@ -0,0 +1,45 @@
+/*
+ * lilJudd
+ * Copyright (C) 2023 moonleay
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.moonleay.lilJudd.util
+
+import java.net.URL
+import javax.net.ssl.HttpsURLConnection
+
+object NetUtil {
+    fun GETJsonData(urlIN: String, userAgent: String): String {
+        val startTime = System.currentTimeMillis()
+        val url = URL(urlIN)
+        val connection = url.openConnection() as HttpsURLConnection
+        connection.requestMethod = "GET"
+        connection.setRequestProperty("User-Agent", userAgent)
+        connection.setRequestProperty("Accept", "application/json")
+        val responseCode = connection.responseCode
+        val timeDiff = System.currentTimeMillis() - startTime
+        Logger.out("GET took $timeDiff ms (from: $urlIN, as $userAgent)")
+        return if (responseCode == HttpsURLConnection.HTTP_OK) {
+            val inputStream = connection.inputStream
+            val inputStreamReader = inputStream.reader()
+            val inputAsString = inputStreamReader.readText()
+            inputStream.close()
+            inputAsString
+        } else {
+            "Error $responseCode"
+        }
+    }
+}