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comparison plugins/mod_admin_telnet.lua @ 10699:fd77b6cec38d 0.11

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mod_admin_telnet: Handle unavailable cipher info (fixes #1510) The LuaSec :info() method gathers info using the OpenSSL function SSL_get_current_cipher(). Documentation for this function states that it may return NULL if no session has been established (yet). If so, the LuaSec functions wrapping this return nil, triggering a nil-indexing error in mod_admin_telnet.
author Kim Alvefur <zash@zash.se>
date Sun, 22 Mar 2020 17:35:26 +0100
parents 232841373711
children 929c95e518f0
comparison
equal deleted inserted replaced
10690:27d15097c235 10699:fd77b6cec38d
526 local function tls_info(session, line) 526 local function tls_info(session, line)
527 line = line or {}; 527 line = line or {};
528 common_info(session, line); 528 common_info(session, line);
529 if session.secure then 529 if session.secure then
530 local sock = session.conn and session.conn.socket and session.conn:socket(); 530 local sock = session.conn and session.conn.socket and session.conn:socket();
531 if sock and sock.info then 531 if sock then
532 local info = sock:info(); 532 local info = sock.info and sock:info();
533 line[#line+1] = ("(%s with %s)"):format(info.protocol, info.cipher); 533 if info then
534 else 534 line[#line+1] = ("(%s with %s)"):format(info.protocol, info.cipher);
535 line[#line+1] = "(cipher info unavailable)"; 535 else
536 -- TLS session might not be ready yet
537 line[#line+1] = "(cipher info unavailable)";
538 end
536 end 539 end
537 else 540 else
538 line[#line+1] = "(insecure)"; 541 line[#line+1] = "(insecure)";
539 end 542 end
540 return table.concat(line, " "); 543 return table.concat(line, " ");