🐛 Fixes ktor fetch not working

frontend/app/build.gradle.kts

@@ -52,7 +52,9 @@ dependencies {
     implementation(libs.material)
     implementation(libs.androidx.activity)
     implementation(libs.ktor.client.core)
-    implementation(libs.ktor.client.cio)
+    implementation(libs.ktor.client.android)
+    implementation(libs.ktor.client.content.negotiation)
+    implementation(libs.ktor.serialization.kotlinx.json)
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)

frontend/app/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <uses-permission android:name="android.permission.INTERNET" />
     <application
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"

frontend/app/src/main/java/dev/svitan/antifed/AuthActivity.kt

@@ -34,6 +34,10 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import dev.svitan.antifed.ui.theme.AntiFedTheme
+import io.ktor.client.HttpClient
+import io.ktor.client.engine.android.Android
+import io.ktor.client.request.get
+import io.ktor.http.HttpStatusCode
 import kotlinx.coroutines.delay
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -45,8 +49,9 @@ class AuthActivity : ComponentActivity() {
             AntiFedTheme {
                 var serverUrl by remember { mutableStateOf("") }
                 var checkingUrl by remember { mutableStateOf(false) }
+                var isServerUrlOk by remember { mutableStateOf(false) }
 
-                fun isServerUrlOkay(): Boolean {
+                fun serverUrlMatches(): Boolean {
                     var re = Regex(
                         "(?:http[s]?:\\/\\/.)?(?:www\\.)?[-a-zA-Z0-9@%._\\+~#=]{2,256}\\.[a-z]{2,6}\\b(?:[-a-zA-Z0-9@:%_\\+.~#?&\\/\\/=]*)",
                         RegexOption.DOT_MATCHES_ALL
@@ -55,15 +60,23 @@ class AuthActivity : ComponentActivity() {
                 }
 
                 LaunchedEffect(serverUrl) {
-                    if (serverUrl.isBlank()) return@LaunchedEffect
-                    if (!isServerUrlOkay()) return@LaunchedEffect
+                    if (serverUrl.isBlank()) {
+                        isServerUrlOk = false
+                        return@LaunchedEffect
+                    }
+                    if (!serverUrlMatches()) {
+                        isServerUrlOk = false
+                        return@LaunchedEffect
+                    }
 
-                    checkingUrl = true
                     delay(1000)
-//                    val client = HttpClient(CIO)
-//                    val response = client.get(serverUrl)
-//                    println(response.status)
+                    checkingUrl = true
+
+                    val client = HttpClient(Android)
+                    val response = client.get(serverUrl)
+
                     checkingUrl = false
+                    isServerUrlOk = response.status == HttpStatusCode.OK
                 }
 
                 Scaffold(
@@ -103,7 +116,7 @@ class AuthActivity : ComponentActivity() {
                             onValueChange = { serverUrl = it },
                             label = { Text(stringResource(R.string.server_url)) },
                             singleLine = true,
-                            isError = !isServerUrlOkay(),
+                            isError = !isServerUrlOk,
                             trailingIcon = {
                                 if (checkingUrl)
                                     CircularProgressIndicator(