Fixes commons-app#3320 (commons-app#3349)

* Fixes commons-app#3320
* Added SSL certificate for commons beta
* Asked OKHTTP client to use SSLContext from beta certificate
* Probable Fix of commons-app#3345

* Use ConfigUtils to verify flavor

Author: ashishkumar468

app/src/main/assets/*.wikimedia.beta.wmflabs.org.cer

@@ -8,6 +8,8 @@
 import java.io.File;
 import java.io.IOException;
 
+import fr.free.nrw.commons.di.SslUtils;
+import fr.free.nrw.commons.utils.ConfigUtils;
 import okhttp3.Cache;
 import okhttp3.Interceptor;
 import okhttp3.OkHttpClient;
@@ -29,13 +31,17 @@ public final class OkHttpConnectionFactory {
 
     @NonNull
     private static OkHttpClient createClient() {
-        return new OkHttpClient.Builder()
+        OkHttpClient.Builder builder = new OkHttpClient.Builder()
                 .cookieJar(SharedPreferenceCookieManager.getInstance())
                 .cache(NET_CACHE)
                 .addInterceptor(getLoggingInterceptor())
                 .addInterceptor(new UnsuccessfulResponseInterceptor())
-                .addInterceptor(new CommonHeaderRequestInterceptor())
-                .build();
+                .addInterceptor(new CommonHeaderRequestInterceptor());
+
+        if(ConfigUtils.isBetaFlavour()){
+            builder.sslSocketFactory(SslUtils.INSTANCE.getSslContextForCertificateFile(CommonsApplication.getInstance(), "*.wikimedia.beta.wmflabs.org.cer").getSocketFactory());
+        }
+        return builder.build();
     }
 
     private static HttpLoggingInterceptor getLoggingInterceptor() {

app/src/main/java/fr/free/nrw/commons/OkHttpConnectionFactory.java

@@ -18,6 +18,8 @@
 
 import javax.inject.Named;
 import javax.inject.Singleton;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLSocketFactory;
 
 import dagger.Module;
 import dagger.Provides;
@@ -31,6 +33,7 @@
 import fr.free.nrw.commons.mwapi.UserInterface;
 import fr.free.nrw.commons.review.ReviewInterface;
 import fr.free.nrw.commons.upload.UploadInterface;
+import fr.free.nrw.commons.utils.ConfigUtils;
 import fr.free.nrw.commons.wikidata.WikidataInterface;
 import okhttp3.Cache;
 import okhttp3.HttpUrl;
@@ -58,14 +61,20 @@ public class NetworkingModule {
     public OkHttpClient provideOkHttpClient(Context context,
                                             HttpLoggingInterceptor httpLoggingInterceptor) {
         File dir = new File(context.getCacheDir(), "okHttpCache");
-        return new OkHttpClient.Builder().connectTimeout(60, TimeUnit.SECONDS)
-            .writeTimeout(60, TimeUnit.SECONDS)
+        OkHttpClient.Builder builder = new OkHttpClient.Builder().connectTimeout(60, TimeUnit.SECONDS)
+                .writeTimeout(60, TimeUnit.SECONDS)
                 .addInterceptor(httpLoggingInterceptor)
-            .readTimeout(60, TimeUnit.SECONDS)
-            .cache(new Cache(dir, OK_HTTP_CACHE_SIZE))
-            .build();
+                .readTimeout(60, TimeUnit.SECONDS)
+                .cache(new Cache(dir, OK_HTTP_CACHE_SIZE));
+
+        if(ConfigUtils.isBetaFlavour()){
+            builder.sslSocketFactory(SslUtils.INSTANCE.getSslContextForCertificateFile(context, "*.wikimedia.beta.wmflabs.org.cer").getSocketFactory());
+        }
+        return builder.build();
     }
 
+
+
     @Provides
     @Singleton
     public HttpLoggingInterceptor provideHttpLoggingInterceptor() {

app/src/main/java/fr/free/nrw/commons/di/NetworkingModule.java

@@ -0,0 +1,90 @@
+package fr.free.nrw.commons.di
+
+import android.content.Context
+import android.util.Log
+import java.security.KeyManagementException
+import java.security.KeyStore
+import java.security.NoSuchAlgorithmException
+import java.security.SecureRandom
+import java.security.cert.Certificate
+import java.security.cert.CertificateException
+import java.security.cert.CertificateFactory
+import java.security.cert.X509Certificate
+import javax.net.ssl.*
+
+object SslUtils {
+
+    fun getSslContextForCertificateFile(context: Context, fileName: String): SSLContext {
+        try {
+            val keyStore = SslUtils.getKeyStore(context, fileName)
+            val sslContext = SSLContext.getInstance("SSL")
+            val trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm())
+            trustManagerFactory.init(keyStore)
+            sslContext.init(null, trustManagerFactory.trustManagers, SecureRandom())
+            return sslContext
+        } catch (e: Exception) {
+            val msg = "Error during creating SslContext for certificate from assets"
+            e.printStackTrace()
+            throw RuntimeException(msg)
+        }
+    }
+
+    private fun getKeyStore(context: Context, fileName: String): KeyStore? {
+        var keyStore: KeyStore? = null
+        try {
+            val assetManager = context.assets
+            val cf = CertificateFactory.getInstance("X.509")
+            val caInput = assetManager.open(fileName)
+            val ca: Certificate
+            try {
+                ca = cf.generateCertificate(caInput)
+                Log.d("SslUtilsAndroid", "ca=" + (ca as X509Certificate).subjectDN)
+            } finally {
+                caInput.close()
+            }
+
+            val keyStoreType = KeyStore.getDefaultType()
+            keyStore = KeyStore.getInstance(keyStoreType)
+            keyStore!!.load(null, null)
+            keyStore.setCertificateEntry("ca", ca)
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+
+        return keyStore
+    }
+
+    fun getTrustAllHostsSSLSocketFactory(): SSLSocketFactory? {
+        try {
+            // Create a trust manager that does not validate certificate chains
+            val trustAllCerts = arrayOf<TrustManager>(object : X509TrustManager {
+
+                override fun getAcceptedIssuers(): Array<X509Certificate> {
+                    return arrayOf()
+                }
+
+                @Throws(CertificateException::class)
+                override fun checkClientTrusted(chain: Array<X509Certificate>, authType: String) {
+                }
+
+                @Throws(CertificateException::class)
+                override fun checkServerTrusted(chain: Array<X509Certificate>, authType: String) {
+                }
+            })
+
+            // Install the all-trusting trust manager
+            val sslContext = SSLContext.getInstance("SSL")
+            sslContext.init(null, trustAllCerts, java.security.SecureRandom())
+            // Create an ssl socket factory with our all-trusting manager
+
+            return sslContext.socketFactory
+        } catch (e: KeyManagementException) {
+            e.printStackTrace()
+            return null
+        } catch (e: NoSuchAlgorithmException) {
+            e.printStackTrace()
+            return null
+        }
+
+    }
+}