SSL debug info

app/src/main/java/eu/faircode/email/Log.java

@@ -148,6 +148,7 @@ import javax.net.ssl.SSLContext;
 import javax.net.ssl.SSLHandshakeException;
 import javax.net.ssl.SSLPeerUnverifiedException;
 import javax.net.ssl.SSLSocket;
+import javax.net.ssl.TrustManager;
 import javax.net.ssl.TrustManagerFactory;
 
 import io.requery.android.database.CursorWindowAllocationException;
@@ -2698,16 +2699,28 @@ public class Log {
     static SpannableStringBuilder getCiphers() {
         SpannableStringBuilder ssb = new SpannableStringBuilderEx();
 
-        for (String protocol : new String[]{"SSL", "TLS"}) {
         try {
-                int begin = ssb.length();
-                ssb.append(protocol).append("\n\n");
-                ssb.setSpan(new StyleSpan(Typeface.BOLD), begin, ssb.length(), 0);
-
             TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
             tmf.init((KeyStore) null);
 
-                SSLContext sslContext = SSLContext.getInstance(protocol);
+            ssb.append("Provider: ").append(tmf.getProvider().getName()).append("\r\n");
+            ssb.append("Algorithm: ").append(tmf.getAlgorithm()).append("\r\n");
+
+            TrustManager[] tms = tmf.getTrustManagers();
+            if (tms != null)
+                for (TrustManager tm : tms)
+                    ssb.append("Manager: ").append(tm.getClass().getName()).append("\r\n");
+
+            SSLContext sslContext;
+            try {
+                sslContext = SSLContext.getInstance("SSL");
+            } catch (Throwable ex) {
+                Log.e(ex);
+                sslContext = SSLContext.getInstance("TLS");
+            }
+
+            ssb.append("Context: ").append(sslContext.getProtocol()).append("\r\n\r\n");
+
             sslContext.init(null, tmf.getTrustManagers(), null);
             SSLSocket socket = (SSLSocket) sslContext.getSocketFactory().createSocket();
 
@@ -2743,7 +2756,6 @@ public class Log {
         } catch (Throwable ex) {
             ssb.append(ex.toString());
         }
-        }
 
         ssb.setSpan(new RelativeSizeSpan(HtmlHelper.FONT_SMALL), 0, ssb.length(), 0);