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,
660 case SILC_COMMAND_TOPIC:
662 SilcChannelEntry channel;
668 channel = va_arg(vp, SilcChannelEntry);
669 topic = va_arg(vp, char *);
672 chanrec = silc_channel_find_entry(server, channel);
674 g_free_not_null(chanrec->topic);
675 chanrec->topic = *topic == '\0' ? NULL : g_strdup(topic);
676 signal_emit("channel topic changed", 1, chanrec);
678 printformat_module("fe-common/silc", server, channel->channel_name,
679 MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC,
680 channel->channel_name, topic);
690 /* Internal routine to verify public key. If the `completion' is provided
691 it will be called to indicate whether public was verified or not. */
695 SilcClientConnection conn;
700 SilcSKEPKType pk_type;
701 SilcVerifyPublicKey completion;
705 static void verify_public_key_completion(const char *line, void *context)
707 PublicKeyVerify verify = (PublicKeyVerify)context;
709 if (line[0] == 'Y' || line[0] == 'y') {
710 /* Call the completion */
711 if (verify->completion)
712 verify->completion(TRUE, verify->context);
714 /* Save the key for future checking */
715 silc_pkcs_save_public_key_data(verify->filename, verify->pk,
716 verify->pk_len, SILC_PKCS_FILE_PEM);
718 /* Call the completion */
719 if (verify->completion)
720 verify->completion(FALSE, verify->context);
722 printformat_module("fe-common/silc", NULL, NULL,
723 MSGLEVEL_CRAP, SILCTXT_PUBKEY_DISCARD, verify->entity);
726 silc_free(verify->filename);
727 silc_free(verify->entity);
728 silc_free(verify->pk);
733 silc_verify_public_key_internal(SilcClient client, SilcClientConnection conn,
734 SilcSocketType conn_type, unsigned char *pk,
735 uint32 pk_len, SilcSKEPKType pk_type,
736 SilcVerifyPublicKey completion, void *context)
739 char file[256], filename[256], *fingerprint, *format;
742 char *entity = ((conn_type == SILC_SOCKET_TYPE_SERVER ||
743 conn_type == SILC_SOCKET_TYPE_ROUTER) ?
744 "server" : "client");
745 PublicKeyVerify verify;
747 if (pk_type != SILC_SKE_PK_TYPE_SILC) {
748 printformat_module("fe-common/silc", NULL, NULL,
749 MSGLEVEL_CRAP, SILCTXT_PUBKEY_UNSUPPORTED,
752 completion(FALSE, context);
756 pw = getpwuid(getuid());
759 completion(FALSE, context);
763 memset(filename, 0, sizeof(filename));
764 memset(file, 0, sizeof(file));
766 if (conn_type == SILC_SOCKET_TYPE_SERVER ||
767 conn_type == SILC_SOCKET_TYPE_ROUTER) {
768 snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity,
769 conn->sock->hostname, conn->sock->port);
770 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
771 pw->pw_dir, entity, file);
773 /* Replace all whitespaces with `_'. */
774 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
775 for (i = 0; i < strlen(fingerprint); i++)
776 if (fingerprint[i] == ' ')
777 fingerprint[i] = '_';
779 snprintf(file, sizeof(file) - 1, "%skey_%s.pub", entity, fingerprint);
780 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
781 pw->pw_dir, entity, file);
782 silc_free(fingerprint);
785 /* Take fingerprint of the public key */
786 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
788 verify = silc_calloc(1, sizeof(*verify));
789 verify->client = client;
791 verify->filename = strdup(filename);
792 verify->entity = strdup(entity);
793 verify->pk = silc_calloc(pk_len, sizeof(*verify->pk));
794 memcpy(verify->pk, pk, pk_len);
795 verify->pk_len = pk_len;
796 verify->pk_type = pk_type;
797 verify->completion = completion;
798 verify->context = context;
800 /* Check whether this key already exists */
801 if (stat(filename, &st) < 0) {
802 /* Key does not exist, ask user to verify the key and save it */
804 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
805 SILCTXT_PUBKEY_RECEIVED, entity);
806 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
807 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
808 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
809 SILCTXT_PUBKEY_ACCEPT);
810 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
813 silc_free(fingerprint);
816 /* The key already exists, verify it. */
817 SilcPublicKey public_key;
818 unsigned char *encpk;
821 /* Load the key file */
822 if (!silc_pkcs_load_public_key(filename, &public_key,
824 if (!silc_pkcs_load_public_key(filename, &public_key,
825 SILC_PKCS_FILE_BIN)) {
826 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
827 SILCTXT_PUBKEY_RECEIVED, entity);
828 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
829 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
830 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
831 SILCTXT_PUBKEY_COULD_NOT_LOAD, entity);
832 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
833 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
834 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
837 silc_free(fingerprint);
841 /* Encode the key data */
842 encpk = silc_pkcs_public_key_encode(public_key, &encpk_len);
844 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
845 SILCTXT_PUBKEY_RECEIVED, entity);
846 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
847 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
848 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
849 SILCTXT_PUBKEY_MALFORMED, entity);
850 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
851 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
852 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
855 silc_free(fingerprint);
859 /* Compare the keys */
860 if (memcmp(encpk, pk, encpk_len)) {
861 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
862 SILCTXT_PUBKEY_RECEIVED, entity);
863 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
864 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
865 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
866 SILCTXT_PUBKEY_NO_MATCH, entity);
867 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
868 SILCTXT_PUBKEY_MAYBE_EXPIRED, entity);
869 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
870 SILCTXT_PUBKEY_MITM_ATTACK, entity);
872 /* Ask user to verify the key and save it */
873 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
874 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
875 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
878 silc_free(fingerprint);
882 /* Local copy matched */
884 completion(TRUE, context);
885 silc_free(fingerprint);
889 /* Verifies received public key. The `conn_type' indicates which entity
890 (server, client etc.) has sent the public key. If user decides to trust
891 the key may be saved as trusted public key for later use. The
892 `completion' must be called after the public key has been verified. */
895 silc_verify_public_key(SilcClient client, SilcClientConnection conn,
896 SilcSocketType conn_type, unsigned char *pk,
897 uint32 pk_len, SilcSKEPKType pk_type,
898 SilcVerifyPublicKey completion, void *context)
900 silc_verify_public_key_internal(client, conn, conn_type, pk,
902 completion, context);
905 /* Asks passphrase from user on the input line. */
908 SilcAskPassphrase completion;
912 void ask_passphrase_completion(const char *passphrase, void *context)
914 AskPassphrase p = (AskPassphrase)context;
915 p->completion((unsigned char *)passphrase,
916 passphrase ? strlen(passphrase) : 0, p->context);
920 void silc_ask_passphrase(SilcClient client, SilcClientConnection conn,
921 SilcAskPassphrase completion, void *context)
923 AskPassphrase p = silc_calloc(1, sizeof(*p));
924 p->completion = completion;
925 p->context = context;
927 keyboard_entry_redirect((SIGNAL_FUNC)ask_passphrase_completion,
928 "Passphrase: ", ENTRY_REDIRECT_FLAG_HIDDEN, p);
931 /* Find authentication method and authentication data by hostname and
932 port. The hostname may be IP address as well. The found authentication
933 method and authentication data is returned to `auth_meth', `auth_data'
934 and `auth_data_len'. The function returns TRUE if authentication method
935 is found and FALSE if not. `conn' may be NULL. */
937 int silc_get_auth_method(SilcClient client, SilcClientConnection conn,
938 char *hostname, uint16 port,
939 SilcProtocolAuthMeth *auth_meth,
940 unsigned char **auth_data,
941 uint32 *auth_data_len)
944 SILC_SERVER_REC *server = conn ? conn->context : NULL;
946 /* XXX must resolve from configuration whether this connection has
947 any specific authentication data */
949 *auth_meth = SILC_AUTH_NONE;
954 printformat_module("fe-common/silc", server, NULL,
955 MSGLEVEL_MODES, SILCTXT_AUTH_METH_UNRESOLVED);
961 /* Notifies application that failure packet was received. This is called
962 if there is some protocol active in the client. The `protocol' is the
963 protocol context. The `failure' is opaque pointer to the failure
964 indication. Note, that the `failure' is protocol dependant and application
965 must explicitly cast it to correct type. Usually `failure' is 32 bit
966 failure type (see protocol specs for all protocol failure types). */
968 void silc_failure(SilcClient client, SilcClientConnection conn,
969 SilcProtocol protocol, void *failure)
971 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_KEY_EXCHANGE) {
972 SilcSKEStatus status = (SilcSKEStatus)failure;
974 if (status == SILC_SKE_STATUS_BAD_VERSION)
975 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
976 SILCTXT_KE_BAD_VERSION);
977 if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY)
978 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
979 SILCTXT_KE_UNSUPPORTED_PUBLIC_KEY);
980 if (status == SILC_SKE_STATUS_UNKNOWN_GROUP)
981 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
982 SILCTXT_KE_UNKNOWN_GROUP);
983 if (status == SILC_SKE_STATUS_UNKNOWN_CIPHER)
984 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
985 SILCTXT_KE_UNKNOWN_CIPHER);
986 if (status == SILC_SKE_STATUS_UNKNOWN_PKCS)
987 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
988 SILCTXT_KE_UNKNOWN_PKCS);
989 if (status == SILC_SKE_STATUS_UNKNOWN_HASH_FUNCTION)
990 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
991 SILCTXT_KE_UNKNOWN_HASH_FUNCTION);
992 if (status == SILC_SKE_STATUS_UNKNOWN_HMAC)
993 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
994 SILCTXT_KE_UNKNOWN_HMAC);
995 if (status == SILC_SKE_STATUS_INCORRECT_SIGNATURE)
996 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
997 SILCTXT_KE_INCORRECT_SIGNATURE);
1000 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_CONNECTION_AUTH) {
1001 uint32 err = (uint32)failure;
1003 if (err == SILC_AUTH_FAILED)
1004 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1005 SILCTXT_AUTH_FAILED);
1009 /* Asks whether the user would like to perform the key agreement protocol.
1010 This is called after we have received an key agreement packet or an
1011 reply to our key agreement packet. This returns TRUE if the user wants
1012 the library to perform the key agreement protocol and FALSE if it is not
1013 desired (application may start it later by calling the function
1014 silc_client_perform_key_agreement). */
1016 int silc_key_agreement(SilcClient client, SilcClientConnection conn,
1017 SilcClientEntry client_entry, char *hostname,
1019 SilcKeyAgreementCallback *completion,
1024 /* We will just display the info on the screen and return FALSE and user
1025 will have to start the key agreement with a command. */
1028 snprintf(portstr, sizeof(portstr) - 1, "%d", port);
1031 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1032 SILCTXT_KEY_AGREEMENT_REQUEST, client_entry->nickname);
1034 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1035 SILCTXT_KEY_AGREEMENT_REQUEST_HOST,
1036 client_entry->nickname, hostname, portstr);
1044 /* SILC client operations */
1045 SilcClientOperations ops = {
1047 silc_channel_message,
1048 silc_private_message,
1054 silc_get_auth_method,
1055 silc_verify_public_key,
1056 silc_ask_passphrase,