Add UserAgent

app/src/main/java/org/koitharu/kotatsu/KotatsuApp.kt

@@ -8,6 +8,7 @@ import coil.ImageLoader
 import coil.util.CoilUtils
 import com.itkacher.okhttpprofiler.OkHttpProfilerInterceptor
 import okhttp3.OkHttpClient
+import okhttp3.internal.userAgent
 import org.koin.android.ext.koin.androidContext
 import org.koin.android.ext.koin.androidLogger
 import org.koin.core.context.startKoin
@@ -18,6 +19,7 @@ import org.koitharu.kotatsu.core.local.PagesCache
 import org.koitharu.kotatsu.core.local.cookies.PersistentCookieJar
 import org.koitharu.kotatsu.core.local.cookies.cache.SetCookieCache
 import org.koitharu.kotatsu.core.local.cookies.persistence.SharedPrefsCookiePersistor
+import org.koitharu.kotatsu.core.parser.UserAgentInterceptor
 import org.koitharu.kotatsu.core.prefs.AppSettings
 import org.koitharu.kotatsu.domain.MangaLoaderContext
 import org.koitharu.kotatsu.utils.CacheUtils
@@ -82,6 +84,7 @@ class KotatsuApp : Application() {
 		readTimeout(60, TimeUnit.SECONDS)
 		writeTimeout(20, TimeUnit.SECONDS)
 		cookieJar(cookieJar)
+		addInterceptor(UserAgentInterceptor)
 		if (BuildConfig.DEBUG) {
 			addInterceptor(OkHttpProfilerInterceptor())
 		}

app/src/main/java/org/koitharu/kotatsu/core/parser/UserAgentInterceptor.kt

@@ -0,0 +1,27 @@
+package org.koitharu.kotatsu.core.parser
+
+import android.annotation.SuppressLint
+import android.os.Build
+import okhttp3.Interceptor
+import okhttp3.Response
+import org.koitharu.kotatsu.BuildConfig
+import java.util.*
+
+@SuppressLint("ConstantLocale")
+object UserAgentInterceptor : Interceptor {
+
+	private val userAgent = "Kotatsu/%s (Android %s; %s; %s %s; %s)".format(
+		BuildConfig.VERSION_NAME,
+		Build.VERSION.RELEASE,
+		Build.MODEL,
+		Build.BRAND,
+		Build.DEVICE,
+		Locale.getDefault().language
+	)
+
+	override fun intercept(chain: Interceptor.Chain) = chain.proceed(
+		chain.request().newBuilder()
+			.header("User-Agent", userAgent)
+			.build()
+	)
+}