5 Author: Pekka Riikonen <priikone@poseidon.pspt.fi>
7 Copyright (C) 2001 Pekka Riikonen
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
22 #include "chat-protocols.h"
26 #include "servers-setup.h"
27 #include "channels-setup.h"
28 #include "silc-servers.h"
29 #include "silc-channels.h"
30 #include "silc-queries.h"
31 #include "silc-nicklist.h"
36 #include "fe-common/core/printtext.h"
37 #include "fe-common/core/fe-channels.h"
38 #include "fe-common/core/keyboard.h"
39 #include "fe-common/silc/module-formats.h"
42 silc_verify_public_key_internal(SilcClient client, SilcClientConnection conn,
43 SilcSocketType conn_type, unsigned char *pk,
44 uint32 pk_len, SilcSKEPKType pk_type,
45 SilcVerifyPublicKey completion, void *context);
47 void silc_say(SilcClient client, SilcClientConnection conn,
50 SILC_SERVER_REC *server;
54 server = conn == NULL ? NULL : conn->context;
57 str = g_strdup_vprintf(msg, va);
58 printtext(server, NULL, MSGLEVEL_CRAP, "%s", str);
63 void silc_say_error(char *msg, ...)
69 str = g_strdup_vprintf(msg, va);
70 printtext(NULL, NULL, MSGLEVEL_CLIENTERROR, "%s", str);
76 /* Message for a channel. The `sender' is the nickname of the sender
77 received in the packet. The `channel_name' is the name of the channel. */
79 void silc_channel_message(SilcClient client, SilcClientConnection conn,
80 SilcClientEntry sender, SilcChannelEntry channel,
81 SilcMessageFlags flags, char *msg)
83 SILC_SERVER_REC *server;
85 SILC_CHANNEL_REC *chanrec;
87 server = conn == NULL ? NULL : conn->context;
88 chanrec = silc_channel_find_entry(server, channel);
92 nick = silc_nicklist_find(chanrec, sender);
94 if (flags & SILC_MESSAGE_FLAG_ACTION)
95 printformat_module("fe-common/silc", server, channel->channel_name,
96 MSGLEVEL_ACTIONS, SILCTXT_CHANNEL_ACTION,
97 nick == NULL ? "[<unknown>]" : nick->nick, msg);
98 else if (flags & SILC_MESSAGE_FLAG_NOTICE)
99 printformat_module("fe-common/silc", server, channel->channel_name,
100 MSGLEVEL_NOTICES, SILCTXT_CHANNEL_NOTICE,
101 nick == NULL ? "[<unknown>]" : nick->nick, msg);
103 signal_emit("message public", 6, server, msg,
104 nick == NULL ? "[<unknown>]" : nick->nick,
105 nick == NULL ? "" : nick->host == NULL ? "" : nick->host,
106 chanrec->name, nick);
109 /* Private message to the client. The `sender' is the nickname of the
110 sender received in the packet. */
112 void silc_private_message(SilcClient client, SilcClientConnection conn,
113 SilcClientEntry sender, SilcMessageFlags flags,
116 SILC_SERVER_REC *server;
118 server = conn == NULL ? NULL : conn->context;
119 signal_emit("message private", 4, server, msg,
120 sender->nickname ? sender->nickname : "[<unknown>]",
121 sender->username ? sender->username : NULL);
124 /* Notify message to the client. The notify arguments are sent in the
125 same order as servers sends them. The arguments are same as received
126 from the server except for ID's. If ID is received application receives
127 the corresponding entry to the ID. For example, if Client ID is received
128 application receives SilcClientEntry. Also, if the notify type is
129 for channel the channel entry is sent to application (even if server
130 does not send it). */
137 #define MAX_NOTIFY (sizeof(notifies)/sizeof(notifies[0]))
138 static NOTIFY_REC notifies[] = {
139 { SILC_NOTIFY_TYPE_NONE, NULL },
140 { SILC_NOTIFY_TYPE_INVITE, "invite" },
141 { SILC_NOTIFY_TYPE_JOIN, "join" },
142 { SILC_NOTIFY_TYPE_LEAVE, "leave" },
143 { SILC_NOTIFY_TYPE_SIGNOFF, "signoff" },
144 { SILC_NOTIFY_TYPE_TOPIC_SET, "topic" },
145 { SILC_NOTIFY_TYPE_NICK_CHANGE, "nick" },
146 { SILC_NOTIFY_TYPE_CMODE_CHANGE, "cmode" },
147 { SILC_NOTIFY_TYPE_CUMODE_CHANGE, "cumode" },
148 { SILC_NOTIFY_TYPE_MOTD, "motd" },
149 { SILC_NOTIFY_TYPE_CHANNEL_CHANGE, "channel_change" },
150 { SILC_NOTIFY_TYPE_SERVER_SIGNOFF, "server_signoff" },
151 { SILC_NOTIFY_TYPE_KICKED, "kick" },
152 { SILC_NOTIFY_TYPE_KILLED, "kill" },
153 { SILC_NOTIFY_TYPE_UMODE_CHANGE, "umode" },
154 { SILC_NOTIFY_TYPE_BAN, "ban" },
157 void silc_notify(SilcClient client, SilcClientConnection conn,
158 SilcNotifyType type, ...)
160 SILC_SERVER_REC *server;
163 server = conn == NULL ? NULL : conn->context;
166 if (type == SILC_NOTIFY_TYPE_NONE) {
167 /* Some generic notice from server */
168 printtext(server, NULL, MSGLEVEL_CRAP, "%s", (char *)va_arg(va, char *));
169 } else if (type < MAX_NOTIFY) {
170 /* Send signal about the notify event */
172 g_snprintf(signal, sizeof(signal), "silc event %s", notifies[type].name);
173 signal_emit(signal, 2, server, va);
176 printformat_module("fe-common/silc", server, NULL,
177 MSGLEVEL_CRAP, SILCTXT_UNKNOWN_NOTIFY, type);
183 /* Called to indicate that connection was either successfully established
184 or connecting failed. This is also the first time application receives
185 the SilcClientConnection objecet which it should save somewhere. */
187 void silc_connect(SilcClient client, SilcClientConnection conn, int success)
189 SILC_SERVER_REC *server = conn->context;
192 server->connected = TRUE;
193 signal_emit("event connected", 1, server);
195 server->connection_lost = TRUE;
196 server->conn->context = NULL;
197 server_disconnect(SERVER(server));
201 /* Called to indicate that connection was disconnected to the server. */
203 void silc_disconnect(SilcClient client, SilcClientConnection conn)
205 SILC_SERVER_REC *server = conn->context;
207 server->conn->context = NULL;
209 server->connection_lost = TRUE;
210 server_disconnect(SERVER(server));
213 /* Command handler. This function is called always in the command function.
214 If error occurs it will be called as well. `conn' is the associated
215 client connection. `cmd_context' is the command context that was
216 originally sent to the command. `success' is FALSE if error occured
217 during command. `command' is the command being processed. It must be
218 noted that this is not reply from server. This is merely called just
219 after application has called the command. Just to tell application
220 that the command really was processed. */
222 void silc_command(SilcClient client, SilcClientConnection conn,
223 SilcClientCommandContext cmd_context, int success,
228 /* Client info resolving callback when JOIN command reply is received.
229 This will cache all users on the channel. */
231 static void silc_client_join_get_users(SilcClient client,
232 SilcClientConnection conn,
233 SilcClientEntry *clients,
234 uint32 clients_count,
237 SilcChannelEntry channel = (SilcChannelEntry)context;
239 SILC_SERVER_REC *server = conn->context;
240 SILC_CHANNEL_REC *chanrec;
241 SilcClientEntry founder = NULL;
247 chanrec = silc_channel_find(server, channel->channel_name);
251 silc_list_start(channel->clients);
252 while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
253 if (chu->mode & SILC_CHANNEL_UMODE_CHANFO)
254 founder = chu->client;
255 silc_nicklist_insert(chanrec, chu, FALSE);
258 ownnick = NICK(silc_nicklist_find(chanrec, conn->local_entry));
259 nicklist_set_own(CHANNEL(chanrec), ownnick);
260 signal_emit("channel joined", 1, chanrec);
263 printformat_module("fe-common/silc", server, channel->channel_name,
264 MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC,
265 channel->channel_name, chanrec->topic);
267 fe_channels_nicklist(CHANNEL(chanrec), CHANNEL_NICKLIST_FLAG_ALL);
270 if (founder == conn->local_entry)
271 printformat_module("fe-common/silc",
272 server, channel->channel_name, MSGLEVEL_CRAP,
273 SILCTXT_CHANNEL_FOUNDER_YOU,
274 channel->channel_name);
276 printformat_module("fe-common/silc",
277 server, channel->channel_name, MSGLEVEL_CRAP,
278 SILCTXT_CHANNEL_FOUNDER,
279 channel->channel_name, founder->nickname);
283 /* Command reply handler. This function is called always in the command reply
284 function. If error occurs it will be called as well. Normal scenario
285 is that it will be called after the received command data has been parsed
286 and processed. The function is used to pass the received command data to
289 `conn' is the associated client connection. `cmd_payload' is the command
290 payload data received from server and it can be ignored. It is provided
291 if the application would like to re-parse the received command data,
292 however, it must be noted that the data is parsed already by the library
293 thus the payload can be ignored. `success' is FALSE if error occured.
294 In this case arguments are not sent to the application. `command' is the
295 command reply being processed. The function has variable argument list
296 and each command defines the number and type of arguments it passes to the
297 application (on error they are not sent). */
300 silc_command_reply(SilcClient client, SilcClientConnection conn,
301 SilcCommandPayload cmd_payload, int success,
302 SilcCommand command, SilcCommandStatus status, ...)
305 SILC_SERVER_REC *server = conn->context;
306 SILC_CHANNEL_REC *chanrec;
309 va_start(vp, status);
312 case SILC_COMMAND_WHOIS:
314 char buf[1024], *nickname, *username, *realname;
318 if (status == SILC_STATUS_ERR_NO_SUCH_NICK ||
319 status == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
321 tmp = silc_argument_get_arg_type(silc_command_get_args(cmd_payload),
324 silc_say_error("%s: %s", tmp,
325 silc_client_command_status_message(status));
327 silc_say_error("%s", silc_client_command_status_message(status));
334 (void)va_arg(vp, SilcClientEntry);
335 nickname = va_arg(vp, char *);
336 username = va_arg(vp, char *);
337 realname = va_arg(vp, char *);
338 channels = va_arg(vp, SilcBuffer);
339 mode = va_arg(vp, uint32);
340 idle = va_arg(vp, uint32);
342 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
343 SILCTXT_WHOIS_USERINFO, nickname, username,
347 SilcDList list = silc_channel_payload_parse_list(channels);
349 SilcChannelPayload entry;
350 memset(buf, 0, sizeof(buf));
351 silc_dlist_start(list);
352 while ((entry = silc_dlist_get(list)) != SILC_LIST_END) {
353 char *m = silc_client_chumode_char(silc_channel_get_mode(entry));
355 char *name = silc_channel_get_name(entry, &name_len);
358 strncat(buf, m, strlen(m));
359 strncat(buf, name, name_len);
360 strncat(buf, " ", 1);
364 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
365 SILCTXT_WHOIS_CHANNELS, buf);
366 silc_channel_payload_list_free(list);
371 memset(buf, 0, sizeof(buf));
373 if ((mode & SILC_UMODE_SERVER_OPERATOR) ||
374 (mode & SILC_UMODE_ROUTER_OPERATOR)) {
375 strcat(buf, (mode & SILC_UMODE_SERVER_OPERATOR) ?
377 (mode & SILC_UMODE_ROUTER_OPERATOR) ?
378 "SILC Operator " : "[Unknown mode] ");
380 if (mode & SILC_UMODE_GONE)
383 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
384 SILCTXT_WHOIS_MODES, buf);
387 if (idle && nickname) {
388 memset(buf, 0, sizeof(buf));
389 snprintf(buf, sizeof(buf) - 1, "%lu %s",
390 idle > 60 ? (idle / 60) : idle,
391 idle > 60 ? "minutes" : "seconds");
393 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
394 SILCTXT_WHOIS_IDLE, buf);
399 case SILC_COMMAND_WHOWAS:
401 char *nickname, *username, *realname;
403 if (status == SILC_STATUS_ERR_NO_SUCH_NICK ||
404 status == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
406 tmp = silc_argument_get_arg_type(silc_command_get_args(cmd_payload),
409 silc_say_error("%s: %s", tmp,
410 silc_client_command_status_message(status));
412 silc_say_error("%s", silc_client_command_status_message(status));
419 (void)va_arg(vp, SilcClientEntry);
420 nickname = va_arg(vp, char *);
421 username = va_arg(vp, char *);
422 realname = va_arg(vp, char *);
424 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
425 SILCTXT_WHOWAS_USERINFO, nickname, username,
426 realname ? realname : "");
430 case SILC_COMMAND_INVITE:
432 SilcChannelEntry channel;
438 channel = va_arg(vp, SilcChannelEntry);
439 invite_list = va_arg(vp, char *);
442 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
443 SILCTXT_CHANNEL_INVITE_LIST, channel->channel_name,
446 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
447 SILCTXT_CHANNEL_NO_INVITE_LIST,
448 channel->channel_name);
452 case SILC_COMMAND_JOIN:
454 char *channel, *mode, *topic;
456 SilcChannelEntry channel_entry;
457 SilcBuffer client_id_list;
460 channel = va_arg(vp, char *);
461 channel_entry = va_arg(vp, SilcChannelEntry);
462 modei = va_arg(vp, uint32);
463 (void)va_arg(vp, uint32);
464 (void)va_arg(vp, unsigned char *);
465 (void)va_arg(vp, unsigned char *);
466 (void)va_arg(vp, unsigned char *);
467 topic = va_arg(vp, char *);
468 (void)va_arg(vp, unsigned char *);
469 list_count = va_arg(vp, uint32);
470 client_id_list = va_arg(vp, SilcBuffer);
475 chanrec = silc_channel_find(server, channel);
476 if (chanrec != NULL && !success)
477 channel_destroy(CHANNEL(chanrec));
478 else if (chanrec == NULL && success)
479 chanrec = silc_channel_create(server, channel, TRUE);
482 g_free_not_null(chanrec->topic);
483 chanrec->topic = *topic == '\0' ? NULL : g_strdup(topic);
484 signal_emit("channel topic changed", 1, chanrec);
487 mode = silc_client_chmode(modei, channel_entry);
488 g_free_not_null(chanrec->mode);
489 chanrec->mode = g_strdup(mode == NULL ? "" : mode);
490 signal_emit("channel mode changed", 1, chanrec);
492 /* Resolve the client information */
493 silc_client_get_clients_by_list(client, conn, list_count, client_id_list,
494 silc_client_join_get_users,
499 case SILC_COMMAND_NICK:
501 SilcClientEntry client = va_arg(vp, SilcClientEntry);
507 old = g_strdup(server->nick);
508 server_change_nick(SERVER(server), client->nickname);
509 nicklist_rename_unique(SERVER(server),
510 server->conn->local_entry, server->nick,
511 client, client->nickname);
513 signal_emit("message own_nick", 4, server, server->nick, old, "");
518 case SILC_COMMAND_LIST:
527 (void)va_arg(vp, SilcChannelEntry);
528 name = va_arg(vp, char *);
529 topic = va_arg(vp, char *);
530 usercount = va_arg(vp, int);
532 if (status == SILC_STATUS_LIST_START ||
533 status == SILC_STATUS_OK)
534 printformat_module("fe-common/silc", server, NULL,
535 MSGLEVEL_CRAP, SILCTXT_LIST_HEADER);
537 snprintf(users, sizeof(users) - 1, "%d", usercount);
538 printformat_module("fe-common/silc", server, NULL,
539 MSGLEVEL_CRAP, SILCTXT_LIST,
540 name, users, topic ? topic : "");
544 case SILC_COMMAND_UMODE:
551 mode = va_arg(vp, uint32);
553 if (mode & SILC_UMODE_SERVER_OPERATOR)
554 printformat_module("fe-common/silc", server, NULL,
555 MSGLEVEL_CRAP, SILCTXT_SERVER_OPER);
557 if (mode & SILC_UMODE_ROUTER_OPERATOR)
558 printformat_module("fe-common/silc", server, NULL,
559 MSGLEVEL_CRAP, SILCTXT_ROUTER_OPER);
563 case SILC_COMMAND_OPER:
567 printformat_module("fe-common/silc", server, NULL,
568 MSGLEVEL_CRAP, SILCTXT_SERVER_OPER);
571 case SILC_COMMAND_SILCOPER:
575 printformat_module("fe-common/silc", server, NULL,
576 MSGLEVEL_CRAP, SILCTXT_ROUTER_OPER);
579 case SILC_COMMAND_USERS:
581 SilcChannelEntry channel;
587 channel = va_arg(vp, SilcChannelEntry);
589 printformat_module("fe-common/silc", server, channel->channel_name,
590 MSGLEVEL_CRAP, SILCTXT_USERS_HEADER,
591 channel->channel_name);
593 silc_list_start(channel->clients);
594 while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
595 SilcClientEntry e = chu->client;
598 memset(stat, 0, sizeof(stat));
599 mode = silc_client_chumode_char(chu->mode);
600 if (e->mode & SILC_UMODE_GONE)
607 printformat_module("fe-common/silc", server, channel->channel_name,
608 MSGLEVEL_CRAP, SILCTXT_USERS,
609 e->nickname, stat, e->username,
610 e->realname ? e->realname : "");
617 case SILC_COMMAND_BAN:
619 SilcChannelEntry channel;
625 channel = va_arg(vp, SilcChannelEntry);
626 ban_list = va_arg(vp, char *);
629 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
630 SILCTXT_CHANNEL_BAN_LIST, channel->channel_name,
633 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
634 SILCTXT_CHANNEL_NO_BAN_LIST,
635 channel->channel_name);
639 case SILC_COMMAND_GETKEY:
643 SilcPublicKey public_key;
647 id_type = va_arg(vp, uint32);
648 entry = va_arg(vp, void *);
649 public_key = va_arg(vp, SilcPublicKey);
651 pk = silc_pkcs_public_key_encode(public_key, &pk_len);
653 if (id_type == SILC_ID_CLIENT)
654 silc_verify_public_key_internal(client, conn, SILC_SOCKET_TYPE_CLIENT,
655 pk, pk_len, SILC_SKE_PK_TYPE_SILC,
661 case SILC_COMMAND_TOPIC:
663 SilcChannelEntry channel;
669 channel = va_arg(vp, SilcChannelEntry);
670 topic = va_arg(vp, char *);
673 chanrec = silc_channel_find_entry(server, channel);
675 g_free_not_null(chanrec->topic);
676 chanrec->topic = *topic == '\0' ? NULL : g_strdup(topic);
677 signal_emit("channel topic changed", 1, chanrec);
679 printformat_module("fe-common/silc", server, channel->channel_name,
680 MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC,
681 channel->channel_name, topic);
683 printformat_module("fe-common/silc", server, channel->channel_name,
684 MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC_NOT_SET,
685 channel->channel_name);
695 /* Internal routine to verify public key. If the `completion' is provided
696 it will be called to indicate whether public was verified or not. */
700 SilcClientConnection conn;
705 SilcSKEPKType pk_type;
706 SilcVerifyPublicKey completion;
710 static void verify_public_key_completion(const char *line, void *context)
712 PublicKeyVerify verify = (PublicKeyVerify)context;
714 if (line[0] == 'Y' || line[0] == 'y') {
715 /* Call the completion */
716 if (verify->completion)
717 verify->completion(TRUE, verify->context);
719 /* Save the key for future checking */
720 silc_pkcs_save_public_key_data(verify->filename, verify->pk,
721 verify->pk_len, SILC_PKCS_FILE_PEM);
723 /* Call the completion */
724 if (verify->completion)
725 verify->completion(FALSE, verify->context);
727 printformat_module("fe-common/silc", NULL, NULL,
728 MSGLEVEL_CRAP, SILCTXT_PUBKEY_DISCARD, verify->entity);
731 silc_free(verify->filename);
732 silc_free(verify->entity);
733 silc_free(verify->pk);
738 silc_verify_public_key_internal(SilcClient client, SilcClientConnection conn,
739 SilcSocketType conn_type, unsigned char *pk,
740 uint32 pk_len, SilcSKEPKType pk_type,
741 SilcVerifyPublicKey completion, void *context)
744 char file[256], filename[256], *fingerprint, *format;
747 char *entity = ((conn_type == SILC_SOCKET_TYPE_SERVER ||
748 conn_type == SILC_SOCKET_TYPE_ROUTER) ?
749 "server" : "client");
750 PublicKeyVerify verify;
752 if (pk_type != SILC_SKE_PK_TYPE_SILC) {
753 printformat_module("fe-common/silc", NULL, NULL,
754 MSGLEVEL_CRAP, SILCTXT_PUBKEY_UNSUPPORTED,
757 completion(FALSE, context);
761 pw = getpwuid(getuid());
764 completion(FALSE, context);
768 memset(filename, 0, sizeof(filename));
769 memset(file, 0, sizeof(file));
771 if (conn_type == SILC_SOCKET_TYPE_SERVER ||
772 conn_type == SILC_SOCKET_TYPE_ROUTER) {
773 snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity,
774 conn->sock->hostname, conn->sock->port);
775 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
776 pw->pw_dir, entity, file);
778 /* Replace all whitespaces with `_'. */
779 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
780 for (i = 0; i < strlen(fingerprint); i++)
781 if (fingerprint[i] == ' ')
782 fingerprint[i] = '_';
784 snprintf(file, sizeof(file) - 1, "%skey_%s.pub", entity, fingerprint);
785 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
786 pw->pw_dir, entity, file);
787 silc_free(fingerprint);
790 /* Take fingerprint of the public key */
791 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
793 verify = silc_calloc(1, sizeof(*verify));
794 verify->client = client;
796 verify->filename = strdup(filename);
797 verify->entity = strdup(entity);
798 verify->pk = silc_calloc(pk_len, sizeof(*verify->pk));
799 memcpy(verify->pk, pk, pk_len);
800 verify->pk_len = pk_len;
801 verify->pk_type = pk_type;
802 verify->completion = completion;
803 verify->context = context;
805 /* Check whether this key already exists */
806 if (stat(filename, &st) < 0) {
807 /* Key does not exist, ask user to verify the key and save it */
809 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
810 SILCTXT_PUBKEY_RECEIVED, entity);
811 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
812 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
813 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
814 SILCTXT_PUBKEY_ACCEPT);
815 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
818 silc_free(fingerprint);
821 /* The key already exists, verify it. */
822 SilcPublicKey public_key;
823 unsigned char *encpk;
826 /* Load the key file */
827 if (!silc_pkcs_load_public_key(filename, &public_key,
829 if (!silc_pkcs_load_public_key(filename, &public_key,
830 SILC_PKCS_FILE_BIN)) {
831 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
832 SILCTXT_PUBKEY_RECEIVED, entity);
833 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
834 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
835 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
836 SILCTXT_PUBKEY_COULD_NOT_LOAD, entity);
837 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
838 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
839 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
842 silc_free(fingerprint);
846 /* Encode the key data */
847 encpk = silc_pkcs_public_key_encode(public_key, &encpk_len);
849 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
850 SILCTXT_PUBKEY_RECEIVED, entity);
851 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
852 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
853 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
854 SILCTXT_PUBKEY_MALFORMED, entity);
855 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
856 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
857 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
860 silc_free(fingerprint);
864 /* Compare the keys */
865 if (memcmp(encpk, pk, encpk_len)) {
866 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
867 SILCTXT_PUBKEY_RECEIVED, entity);
868 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
869 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
870 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
871 SILCTXT_PUBKEY_NO_MATCH, entity);
872 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
873 SILCTXT_PUBKEY_MAYBE_EXPIRED, entity);
874 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
875 SILCTXT_PUBKEY_MITM_ATTACK, entity);
877 /* Ask user to verify the key and save it */
878 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
879 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
880 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
883 silc_free(fingerprint);
887 /* Local copy matched */
889 completion(TRUE, context);
890 silc_free(fingerprint);
894 /* Verifies received public key. The `conn_type' indicates which entity
895 (server, client etc.) has sent the public key. If user decides to trust
896 the key may be saved as trusted public key for later use. The
897 `completion' must be called after the public key has been verified. */
900 silc_verify_public_key(SilcClient client, SilcClientConnection conn,
901 SilcSocketType conn_type, unsigned char *pk,
902 uint32 pk_len, SilcSKEPKType pk_type,
903 SilcVerifyPublicKey completion, void *context)
905 silc_verify_public_key_internal(client, conn, conn_type, pk,
907 completion, context);
910 /* Asks passphrase from user on the input line. */
913 SilcAskPassphrase completion;
917 void ask_passphrase_completion(const char *passphrase, void *context)
919 AskPassphrase p = (AskPassphrase)context;
920 p->completion((unsigned char *)passphrase,
921 passphrase ? strlen(passphrase) : 0, p->context);
925 void silc_ask_passphrase(SilcClient client, SilcClientConnection conn,
926 SilcAskPassphrase completion, void *context)
928 AskPassphrase p = silc_calloc(1, sizeof(*p));
929 p->completion = completion;
930 p->context = context;
932 keyboard_entry_redirect((SIGNAL_FUNC)ask_passphrase_completion,
933 "Passphrase: ", ENTRY_REDIRECT_FLAG_HIDDEN, p);
936 /* Find authentication method and authentication data by hostname and
937 port. The hostname may be IP address as well. The found authentication
938 method and authentication data is returned to `auth_meth', `auth_data'
939 and `auth_data_len'. The function returns TRUE if authentication method
940 is found and FALSE if not. `conn' may be NULL. */
942 int silc_get_auth_method(SilcClient client, SilcClientConnection conn,
943 char *hostname, uint16 port,
944 SilcProtocolAuthMeth *auth_meth,
945 unsigned char **auth_data,
946 uint32 *auth_data_len)
949 SILC_SERVER_REC *server = conn ? conn->context : NULL;
951 /* XXX must resolve from configuration whether this connection has
952 any specific authentication data */
954 *auth_meth = SILC_AUTH_NONE;
959 printformat_module("fe-common/silc", server, NULL,
960 MSGLEVEL_MODES, SILCTXT_AUTH_METH_UNRESOLVED);
966 /* Notifies application that failure packet was received. This is called
967 if there is some protocol active in the client. The `protocol' is the
968 protocol context. The `failure' is opaque pointer to the failure
969 indication. Note, that the `failure' is protocol dependant and application
970 must explicitly cast it to correct type. Usually `failure' is 32 bit
971 failure type (see protocol specs for all protocol failure types). */
973 void silc_failure(SilcClient client, SilcClientConnection conn,
974 SilcProtocol protocol, void *failure)
976 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_KEY_EXCHANGE) {
977 SilcSKEStatus status = (SilcSKEStatus)failure;
979 if (status == SILC_SKE_STATUS_BAD_VERSION)
980 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
981 SILCTXT_KE_BAD_VERSION);
982 if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY)
983 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
984 SILCTXT_KE_UNSUPPORTED_PUBLIC_KEY);
985 if (status == SILC_SKE_STATUS_UNKNOWN_GROUP)
986 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
987 SILCTXT_KE_UNKNOWN_GROUP);
988 if (status == SILC_SKE_STATUS_UNKNOWN_CIPHER)
989 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
990 SILCTXT_KE_UNKNOWN_CIPHER);
991 if (status == SILC_SKE_STATUS_UNKNOWN_PKCS)
992 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
993 SILCTXT_KE_UNKNOWN_PKCS);
994 if (status == SILC_SKE_STATUS_UNKNOWN_HASH_FUNCTION)
995 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
996 SILCTXT_KE_UNKNOWN_HASH_FUNCTION);
997 if (status == SILC_SKE_STATUS_UNKNOWN_HMAC)
998 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
999 SILCTXT_KE_UNKNOWN_HMAC);
1000 if (status == SILC_SKE_STATUS_INCORRECT_SIGNATURE)
1001 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1002 SILCTXT_KE_INCORRECT_SIGNATURE);
1005 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_CONNECTION_AUTH) {
1006 uint32 err = (uint32)failure;
1008 if (err == SILC_AUTH_FAILED)
1009 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1010 SILCTXT_AUTH_FAILED);
1014 /* Asks whether the user would like to perform the key agreement protocol.
1015 This is called after we have received an key agreement packet or an
1016 reply to our key agreement packet. This returns TRUE if the user wants
1017 the library to perform the key agreement protocol and FALSE if it is not
1018 desired (application may start it later by calling the function
1019 silc_client_perform_key_agreement). */
1021 int silc_key_agreement(SilcClient client, SilcClientConnection conn,
1022 SilcClientEntry client_entry, char *hostname,
1024 SilcKeyAgreementCallback *completion,
1029 /* We will just display the info on the screen and return FALSE and user
1030 will have to start the key agreement with a command. */
1033 snprintf(portstr, sizeof(portstr) - 1, "%d", port);
1036 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1037 SILCTXT_KEY_AGREEMENT_REQUEST, client_entry->nickname);
1039 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1040 SILCTXT_KEY_AGREEMENT_REQUEST_HOST,
1041 client_entry->nickname, hostname, portstr);
1049 /* SILC client operations */
1050 SilcClientOperations ops = {
1052 silc_channel_message,
1053 silc_private_message,
1059 silc_get_auth_method,
1060 silc_verify_public_key,
1061 silc_ask_passphrase,