From e15934bdc62fe0b7251bda8c1f9524de0c2420dd Mon Sep 17 00:00:00 2001
From: Koitharu <nvasya95@gmail.com>
Date: Thu, 2 Mar 2023 18:36:46 +0200
Subject: [PATCH] Option to inore SSL errors

---
 .../org/koitharu/kotatsu/core/AppModule.kt    |  3 ++
 .../kotatsu/core/network/SSLBypass.kt         | 30 +++++++++++++++++++
 .../kotatsu/core/prefs/AppSettings.kt         |  4 +++
 .../settings/ContentSettingsFragment.kt       |  5 ++++
 app/src/main/res/values/strings.xml           |  1 +
 app/src/main/res/xml/pref_content.xml         | 17 +++++++----
 6 files changed, 54 insertions(+), 6 deletions(-)
 create mode 100644 app/src/main/java/org/koitharu/kotatsu/core/network/SSLBypass.kt

diff --git a/app/src/main/java/org/koitharu/kotatsu/core/AppModule.kt b/app/src/main/java/org/koitharu/kotatsu/core/AppModule.kt
index 565f5f653..a02e42b42 100644
--- a/app/src/main/java/org/koitharu/kotatsu/core/AppModule.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/core/AppModule.kt
@@ -96,6 +96,9 @@ interface AppModule {
 				writeTimeout(20, TimeUnit.SECONDS)
 				cookieJar(cookieJar)
 				dns(DoHManager(cache, settings))
+				if (settings.isSSLBypassEnabled) {
+					bypassSSLErrors()
+				}
 				cache(cache)
 				addInterceptor(GZipInterceptor())
 				addInterceptor(commonHeadersInterceptor)
diff --git a/app/src/main/java/org/koitharu/kotatsu/core/network/SSLBypass.kt b/app/src/main/java/org/koitharu/kotatsu/core/network/SSLBypass.kt
new file mode 100644
index 000000000..ed1221613
--- /dev/null
+++ b/app/src/main/java/org/koitharu/kotatsu/core/network/SSLBypass.kt
@@ -0,0 +1,30 @@
+package org.koitharu.kotatsu.core.network
+
+import android.annotation.SuppressLint
+import okhttp3.OkHttpClient
+import org.koitharu.kotatsu.utils.ext.printStackTraceDebug
+import java.security.SecureRandom
+import java.security.cert.X509Certificate
+import javax.net.ssl.SSLContext
+import javax.net.ssl.SSLSocketFactory
+import javax.net.ssl.X509TrustManager
+
+@SuppressLint("CustomX509TrustManager")
+fun OkHttpClient.Builder.bypassSSLErrors() = also { builder ->
+	runCatching {
+		val trustAllCerts = object : X509TrustManager {
+			override fun checkClientTrusted(chain: Array<X509Certificate>, authType: String) = Unit
+
+			override fun checkServerTrusted(chain: Array<X509Certificate>, authType: String) = Unit
+
+			override fun getAcceptedIssuers(): Array<X509Certificate> = emptyArray()
+		}
+		val sslContext = SSLContext.getInstance("SSL")
+		sslContext.init(null, arrayOf(trustAllCerts), SecureRandom())
+		val sslSocketFactory: SSLSocketFactory = sslContext.socketFactory
+		builder.sslSocketFactory(sslSocketFactory, trustAllCerts)
+		builder.hostnameVerifier { _, _ -> true }
+	}.onFailure {
+		it.printStackTraceDebug()
+	}
+}
diff --git a/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt b/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt
index c63db4e66..2964b75ff 100644
--- a/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/core/prefs/AppSettings.kt
@@ -255,6 +255,9 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 	val dnsOverHttps: DoHProvider
 		get() = prefs.getEnumValue(KEY_DOH, DoHProvider.NONE)
 
+	val isSSLBypassEnabled: Boolean
+		get() = prefs.getBoolean(KEY_SSL_BYPASS, false)
+
 	var localListOrder: SortOrder
 		get() = prefs.getEnumValue(KEY_LOCAL_LIST_ORDER, SortOrder.NEWEST)
 		set(value) = prefs.edit { putEnumValue(KEY_LOCAL_LIST_ORDER, value) }
@@ -380,6 +383,7 @@ class AppSettings @Inject constructor(@ApplicationContext context: Context) {
 		const val KEY_LOGS_SHARE = "logs_share"
 		const val KEY_SOURCES_GRID = "sources_grid"
 		const val KEY_UPDATES_UNSTABLE = "updates_unstable"
+		const val KEY_SSL_BYPASS = "ssl_bypass"
 
 		// About
 		const val KEY_APP_UPDATE = "app_update"
diff --git a/app/src/main/java/org/koitharu/kotatsu/settings/ContentSettingsFragment.kt b/app/src/main/java/org/koitharu/kotatsu/settings/ContentSettingsFragment.kt
index 61da14d36..872caac79 100644
--- a/app/src/main/java/org/koitharu/kotatsu/settings/ContentSettingsFragment.kt
+++ b/app/src/main/java/org/koitharu/kotatsu/settings/ContentSettingsFragment.kt
@@ -5,6 +5,7 @@ import android.os.Bundle
 import android.view.View
 import androidx.preference.ListPreference
 import androidx.preference.Preference
+import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.launch
 import org.koitharu.kotatsu.R
@@ -85,6 +86,10 @@ class ContentSettingsFragment :
 			AppSettings.KEY_SOURCES_HIDDEN -> {
 				bindRemoteSourcesSummary()
 			}
+
+			AppSettings.KEY_SSL_BYPASS -> {
+				Snackbar.make(listView, R.string.settings_apply_restart_required, Snackbar.LENGTH_INDEFINITE).show()
+			}
 		}
 	}
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 8f4f5e1ee..3c5494892 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -425,4 +425,5 @@
 	<string name="allow_unstable_updates_summary">Propose updates to beta versions of the app</string>
 	<string name="download_started">Download started</string>
 	<string name="user_agent">UserAgent header</string>
+	<string name="settings_apply_restart_required">Please restart the application to apply these changes</string>
 </resources>
diff --git a/app/src/main/res/xml/pref_content.xml b/app/src/main/res/xml/pref_content.xml
index bf617ab66..cc679251b 100644
--- a/app/src/main/res/xml/pref_content.xml
+++ b/app/src/main/res/xml/pref_content.xml
@@ -20,12 +20,6 @@
 		android:title="@string/suggestions"
 		app:allowDividerAbove="true" />
 
-	<ListPreference
-		android:entries="@array/doh_providers"
-		android:key="doh"
-		android:title="@string/dns_over_https"
-		app:useSimpleSummaryProvider="true" />
-
 	<ListPreference
 		android:defaultValue="0"
 		android:entries="@array/network_policy"
@@ -56,6 +50,17 @@
 		android:valueTo="5"
 		app:defaultValue="2" />
 
+	<ListPreference
+		android:entries="@array/doh_providers"
+		android:key="doh"
+		android:title="@string/dns_over_https"
+		app:allowDividerAbove="true"
+		app:useSimpleSummaryProvider="true" />
+
+	<SwitchPreferenceCompat
+		android:key="ssl_bypass"
+		android:title="Ignore SSL errors" />
+
 	<PreferenceScreen
 		android:fragment="org.koitharu.kotatsu.settings.backup.BackupSettingsFragment"
 		android:title="@string/backup_restore"