diff --git a/app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt b/app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt
index 024253064..a8fd4a2e1 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/network/CloudflareInterceptor.kt
@@ -8,6 +8,7 @@ import android.os.Looper
import android.webkit.WebSettings
import android.webkit.WebView
import eu.kanade.tachiyomi.util.system.WebViewClientCompat
+import eu.kanade.tachiyomi.util.system.checkVersion
import okhttp3.Cookie
import okhttp3.HttpUrl.Companion.toHttpUrl
import okhttp3.Interceptor
@@ -78,12 +79,15 @@ class CloudflareInterceptor(private val context: Context) : Interceptor {
val headers = request.headers.toMultimap().mapValues { it.value.getOrNull(0) ?: "" }
handler.post {
- val view = WebView(context)
- webView = view
- view.settings.javaScriptEnabled = true
- view.settings.userAgentString = request.header("User-Agent")
- view.webViewClient = object : WebViewClientCompat() {
+ val webview = WebView(context)
+ webView = webview
+ webview.checkVersion()
+
+ webview.settings.javaScriptEnabled = true
+ webview.settings.userAgentString = request.header("User-Agent")
+
+ webview.webViewClient = object : WebViewClientCompat() {
override fun onPageFinished(view: WebView, url: String) {
fun isCloudFlareBypassed(): Boolean {
return networkHelper.cookieManager.get(origRequestUrl.toHttpUrl())
@@ -122,6 +126,7 @@ class CloudflareInterceptor(private val context: Context) : Interceptor {
}
}
}
+
webView?.loadUrl(origRequestUrl, headers)
}
diff --git a/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt b/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
index 2658896c9..c63e079bd 100644
--- a/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
+++ b/app/src/main/java/eu/kanade/tachiyomi/ui/webview/WebViewActivity.kt
@@ -1,5 +1,6 @@
package eu.kanade.tachiyomi.ui.webview
+import android.annotation.SuppressLint
import android.content.Context
import android.content.Intent
import android.graphics.Bitmap
@@ -14,10 +15,7 @@ import eu.kanade.tachiyomi.R
import eu.kanade.tachiyomi.source.SourceManager
import eu.kanade.tachiyomi.source.online.HttpSource
import eu.kanade.tachiyomi.ui.base.activity.BaseActivity
-import eu.kanade.tachiyomi.util.system.WebViewClientCompat
-import eu.kanade.tachiyomi.util.system.getResourceColor
-import eu.kanade.tachiyomi.util.system.openInBrowser
-import eu.kanade.tachiyomi.util.system.toast
+import eu.kanade.tachiyomi.util.system.*
import eu.kanade.tachiyomi.util.view.invisible
import eu.kanade.tachiyomi.util.view.visible
import kotlinx.android.synthetic.main.webview_activity.*
@@ -29,6 +27,7 @@ class WebViewActivity : BaseActivity() {
private var bundle: Bundle? = null
+ @SuppressLint("SetJavaScriptEnabled")
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.webview_activity)
@@ -54,6 +53,11 @@ class WebViewActivity : BaseActivity() {
val url = intent.extras!!.getString(URL_KEY) ?: return
val headers = source.headers.toMultimap().mapValues { it.value.getOrNull(0) ?: "" }
+ webview.checkVersion()
+
+ webview.settings.javaScriptEnabled = true
+ webview.settings.userAgentString = source.headers["User-Agent"]
+
webview.webChromeClient = object : WebChromeClient() {
override fun onProgressChanged(view: WebView?, newProgress: Int) {
progress_bar.visible()
@@ -91,8 +95,7 @@ class WebViewActivity : BaseActivity() {
nested_view.scrollTo(0, 0)
}
}
- webview.settings.javaScriptEnabled = true
- webview.settings.userAgentString = source.headers["User-Agent"]
+
webview.loadUrl(url, headers)
} else {
webview.restoreState(bundle)
diff --git a/app/src/main/java/eu/kanade/tachiyomi/util/system/WebviewUtil.kt b/app/src/main/java/eu/kanade/tachiyomi/util/system/WebviewUtil.kt
new file mode 100644
index 000000000..8590526b5
--- /dev/null
+++ b/app/src/main/java/eu/kanade/tachiyomi/util/system/WebviewUtil.kt
@@ -0,0 +1,37 @@
+package eu.kanade.tachiyomi.util.system
+
+import android.webkit.WebView
+import android.widget.Toast
+import eu.kanade.tachiyomi.R
+
+private val WEBVIEW_UA_VERSION_REGEX by lazy {
+ Regex(""".*Chrome/(\d+)\..*""")
+}
+
+private const val MINIMUM_WEBVIEW_VERSION = 78
+
+fun WebView.checkVersion() {
+ if (getWebviewMajorVersion(this) < MINIMUM_WEBVIEW_VERSION) {
+ this.context.toast(R.string.information_webview_outdated, Toast.LENGTH_LONG)
+ }
+}
+
+// Based on https://stackoverflow.com/a/29218966
+private fun getWebviewMajorVersion(webview: WebView): Int {
+ val originalUA: String = webview.settings.userAgentString
+
+ // Next call to getUserAgentString() will get us the default
+ webview.settings.userAgentString = null
+
+ val uaRegexMatch = WEBVIEW_UA_VERSION_REGEX.matchEntire(webview.settings.userAgentString)
+ val webViewVersion: Int = if (uaRegexMatch != null && uaRegexMatch.groupValues.size > 1) {
+ uaRegexMatch.groupValues[1].toInt()
+ } else {
+ 0
+ }
+
+ // Revert to original UA string
+ webview.settings.userAgentString = originalUA
+
+ return webViewVersion
+}
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index f76c5cf3f..edea4c025 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -522,6 +522,7 @@
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+ Please update the WebView app for better compatibility
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