Test solving Cloudflare's challenge with WebView

app/src/main/java/eu/kanade/tachiyomi/util/WebViewClientCompat.kt

@@ -0,0 +1,83 @@
+package eu.kanade.tachiyomi.util
+
+import android.annotation.TargetApi
+import android.os.Build
+import android.webkit.*
+
+@Suppress("OverridingDeprecatedMember")
+abstract class WebViewClientCompat : WebViewClient() {
+
+    open fun shouldOverrideUrlCompat(view: WebView, url: String): Boolean {
+        return false
+    }
+
+    open fun shouldInterceptRequestCompat(view: WebView, url: String): WebResourceResponse? {
+        return null
+    }
+
+    open fun onReceivedErrorCompat(
+            view: WebView,
+            errorCode: Int,
+            description: String?,
+            failingUrl: String,
+            isMainFrame: Boolean) {
+
+    }
+
+    @TargetApi(Build.VERSION_CODES.N)
+    final override fun shouldOverrideUrlLoading(
+            view: WebView,
+            request: WebResourceRequest
+    ): Boolean {
+        return shouldOverrideUrlCompat(view, request.url.toString())
+    }
+
+    final override fun shouldOverrideUrlLoading(view: WebView, url: String): Boolean {
+        return shouldOverrideUrlCompat(view, url)
+    }
+
+    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
+    final override fun shouldInterceptRequest(
+            view: WebView,
+            request: WebResourceRequest
+    ): WebResourceResponse? {
+        return shouldInterceptRequestCompat(view, request.url.toString())
+    }
+
+    final override fun shouldInterceptRequest(
+            view: WebView,
+            url: String
+    ): WebResourceResponse? {
+        return shouldInterceptRequestCompat(view, url)
+    }
+
+    @TargetApi(Build.VERSION_CODES.M)
+    final override fun onReceivedError(
+            view: WebView,
+            request: WebResourceRequest,
+            error: WebResourceError
+    ) {
+        onReceivedErrorCompat(view, error.errorCode, error.description?.toString(),
+                request.url.toString(), request.isForMainFrame)
+    }
+
+    final override fun onReceivedError(
+            view: WebView,
+            errorCode: Int,
+            description: String?,
+            failingUrl: String
+    ) {
+        onReceivedErrorCompat(view, errorCode, description, failingUrl, failingUrl == view.url)
+    }
+
+    @TargetApi(Build.VERSION_CODES.M)
+    final override fun onReceivedHttpError(
+            view: WebView,
+            request: WebResourceRequest,
+            error: WebResourceResponse
+    ) {
+        onReceivedErrorCompat(view, error.statusCode, error.reasonPhrase, request.url
+            .toString(), request.isForMainFrame)
+    }
+
+}