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Display TLS connection information when connected to a TLS enabled server.

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Alexander Færøy 2016-10-16 14:33:25 +02:00
commit c6c2e79537
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7 changed files with 144 additions and 1 deletions
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src/fe-common/core/fe-tls.c Normal file
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/*
* Copyright (c) 2015 Alexander Færøy <ahf@irssi.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 51
* Franklin Street, Fifth Floor, Boston, MA 02110-1301,USA
*/
#include "module.h"
#include "signals.h"
#include "settings.h"
#include "levels.h"
#include "tls.h"
#include "module-formats.h"
#include "printtext.h"
#include "fe-tls.h"
static void tls_handshake_finished(SERVER_REC *server, TLS_REC *tls)
{
if (! settings_get_bool("tls_verbose_connect"))
return;
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_CERT_HEADER);
GSList *certs = NULL;
for (certs = tls->certs; certs != NULL; certs = certs->next) {
TLS_CERT_REC *tls_cert_rec = certs->data;
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_CERT_SUBJECT_HEADER);
GSList *subject = NULL;
for (subject = tls_cert_rec->subject; subject != NULL; subject = subject->next) {
TLS_CERT_ENTRY_REC *subject_data = subject->data;
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_CERT_NAMED_ENTRY, subject_data->name, subject_data->value);
}
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_CERT_ISSUER_HEADER);
GSList *issuer = NULL;
for (issuer = tls_cert_rec->issuer; issuer != NULL; issuer = issuer->next) {
TLS_CERT_ENTRY_REC *issuer_data = issuer->data;
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_CERT_NAMED_ENTRY, issuer_data->name, issuer_data->value);
}
}
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_PROTOCOL_VERSION, tls->protocol_version, tls->cipher_size, tls->cipher);
#ifdef SSL_get_server_tmp_key
if (tls->ephemeral_key_algorithm != NULL)
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_EPHEMERAL_KEY, tls->ephemeral_key_size, tls->ephemeral_key_algorithm);
else
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_EPHEMERAL_KEY_UNAVAILBLE);
#endif
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_PUBKEY, tls->public_key_size, tls->public_key_algorithm, tls->not_before, tls->not_after);
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_PUBKEY_FINGERPRINT, tls->public_key_fingerprint, tls->public_key_fingerprint_algorithm);
printformat(server, NULL, MSGLEVEL_CLIENTNOTICE, TXT_TLS_CERT_FINGERPRINT, tls->certificate_fingerprint, tls->certificate_fingerprint_algorithm);
}
void fe_tls_init(void)
{
settings_add_bool("lookandfeel", "tls_verbose_connect", TRUE);
signal_add("tls handshake finished", (SIGNAL_FUNC)tls_handshake_finished);
}
void fe_tls_deinit(void)
{
signal_remove("tls handshake finished", (SIGNAL_FUNC)tls_handshake_finished);
}