From e1b23afb4e4eed33442875bf297dc7f28b5009c2 Mon Sep 17 00:00:00 2001
From: Karim H <karim@karhm.com>
Date: Tue, 17 Aug 2021 20:48:18 +0100
Subject: [PATCH] Added Legacy SSL support

---
 .../jivesoftware/smack/ConnectionConfiguration.java  |  7 ++++++-
 .../jivesoftware/smack/tcp/XMPPTCPConnection.java    | 12 ++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/smack-core/src/main/java/org/jivesoftware/smack/ConnectionConfiguration.java b/smack-core/src/main/java/org/jivesoftware/smack/ConnectionConfiguration.java
index 23e664e94d..dee69e5de8 100644
--- a/smack-core/src/main/java/org/jivesoftware/smack/ConnectionConfiguration.java
+++ b/smack-core/src/main/java/org/jivesoftware/smack/ConnectionConfiguration.java
@@ -518,7 +518,12 @@ public enum SecurityMode {
          * be used. If only TLS encryption is available from the server, the connection
          * will fail.
          */
-        disabled
+        disabled,
+
+        /**
+         * Legacy SSL encryption.
+         */
+        legacy
     }
 
     /**
diff --git a/smack-tcp/src/main/java/org/jivesoftware/smack/tcp/XMPPTCPConnection.java b/smack-tcp/src/main/java/org/jivesoftware/smack/tcp/XMPPTCPConnection.java
index c1dc8b7ee6..0864b3d789 100644
--- a/smack-tcp/src/main/java/org/jivesoftware/smack/tcp/XMPPTCPConnection.java
+++ b/smack-tcp/src/main/java/org/jivesoftware/smack/tcp/XMPPTCPConnection.java
@@ -628,6 +628,18 @@ private void connectUsingConfiguration() throws ConnectionException, IOException
                             break innerloop;
                         }
                     }
+
+                    // Legacy SSL
+                    if (ConnectionConfiguration.SecurityMode.legacy == config.getSecurityMode()) {
+                        try {
+                            proceedTLSReceived();
+                        } catch (Exception e) {
+                            LOGGER.finer("Could not enable SSL encryption while connecting to " + inetSocketAddress);
+                            RemoteConnectionException<Rfc6120TcpRemoteConnectionEndpoint> rce = new RemoteConnectionException<>(
+                                    endpoint, inetAddress, e);
+                            connectionExceptions.add(rce);
+                        }
+                    }
                     LOGGER.finer("Established TCP connection to " + inetSocketAddress);
                     // We found a host to connect to, return here
                     this.host = host;