Enhance SSL check command to handle protocol version issues with OpenSSL, adding retry logic for TLS1.2 support.

nice.py

@@ -420,6 +420,24 @@ def ssl_check_cmd(url: str) -> str:
             proc = subprocess.run(cmd, input='\n', capture_output=True, text=True, timeout=60)
             out = proc.stdout + "\n" + proc.stderr
             logger.debug(f"OpenSSL finished, {len(out)} bytes returned, rc={proc.returncode}")
+            # Some older OpenSSL builds (or default s_client options) may
+            # negotiate an incompatible protocol version with modern servers
+            # and return a short error like 'tlsv1 alert protocol version'. If
+            # that appears, try again forcing TLS1.2 which most servers still
+            # support. This helps when the openssl on PATH is old (eg bundled
+            # with other software) and defaults to legacy negotiation.
+            if "tlsv1 alert protocol version" in out or "SSL23_GET_SERVER_HELLO" in out:
+                logger.debug("OpenSSL reported protocol version issue; retrying with -tls1_2")
+                try:
+                    cmd2 = cmd + ["-tls1_2"]
+                    proc2 = subprocess.run(cmd2, input='\n', capture_output=True, text=True, timeout=30)
+                    out2 = proc2.stdout + "\n" + proc2.stderr
+                    logger.debug(f"OpenSSL retry finished, {len(out2)} bytes returned, rc={proc2.returncode}")
+                    return out + "\n--- retry with -tls1_2 ---\n" + out2
+                except Exception:
+                    logger.exception("OpenSSL tls1_2 retry failed")
+                    return out + "\nNote: OpenSSL appears to be too old to negotiate modern TLS.\nConsider installing a newer OpenSSL (eg Git for Windows or a Win64 OpenSSL build).\n"
+
             return out
         except subprocess.TimeoutExpired:
             logger.debug("OpenSSL timed out")