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);
682 printformat_module("fe-common/silc", server, channel->channel_name,
683 MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC_NOT_SET,
684 channel->channel_name);
694 /* Internal routine to verify public key. If the `completion' is provided
695 it will be called to indicate whether public was verified or not. */
699 SilcClientConnection conn;
704 SilcSKEPKType pk_type;
705 SilcVerifyPublicKey completion;
709 static void verify_public_key_completion(const char *line, void *context)
711 PublicKeyVerify verify = (PublicKeyVerify)context;
713 if (line[0] == 'Y' || line[0] == 'y') {
714 /* Call the completion */
715 if (verify->completion)
716 verify->completion(TRUE, verify->context);
718 /* Save the key for future checking */
719 silc_pkcs_save_public_key_data(verify->filename, verify->pk,
720 verify->pk_len, SILC_PKCS_FILE_PEM);
722 /* Call the completion */
723 if (verify->completion)
724 verify->completion(FALSE, verify->context);
726 printformat_module("fe-common/silc", NULL, NULL,
727 MSGLEVEL_CRAP, SILCTXT_PUBKEY_DISCARD, verify->entity);
730 silc_free(verify->filename);
731 silc_free(verify->entity);
732 silc_free(verify->pk);
737 silc_verify_public_key_internal(SilcClient client, SilcClientConnection conn,
738 SilcSocketType conn_type, unsigned char *pk,
739 uint32 pk_len, SilcSKEPKType pk_type,
740 SilcVerifyPublicKey completion, void *context)
743 char file[256], filename[256], *fingerprint, *format;
746 char *entity = ((conn_type == SILC_SOCKET_TYPE_SERVER ||
747 conn_type == SILC_SOCKET_TYPE_ROUTER) ?
748 "server" : "client");
749 PublicKeyVerify verify;
751 if (pk_type != SILC_SKE_PK_TYPE_SILC) {
752 printformat_module("fe-common/silc", NULL, NULL,
753 MSGLEVEL_CRAP, SILCTXT_PUBKEY_UNSUPPORTED,
756 completion(FALSE, context);
760 pw = getpwuid(getuid());
763 completion(FALSE, context);
767 memset(filename, 0, sizeof(filename));
768 memset(file, 0, sizeof(file));
770 if (conn_type == SILC_SOCKET_TYPE_SERVER ||
771 conn_type == SILC_SOCKET_TYPE_ROUTER) {
772 snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity,
773 conn->sock->hostname, conn->sock->port);
774 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
775 pw->pw_dir, entity, file);
777 /* Replace all whitespaces with `_'. */
778 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
779 for (i = 0; i < strlen(fingerprint); i++)
780 if (fingerprint[i] == ' ')
781 fingerprint[i] = '_';
783 snprintf(file, sizeof(file) - 1, "%skey_%s.pub", entity, fingerprint);
784 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
785 pw->pw_dir, entity, file);
786 silc_free(fingerprint);
789 /* Take fingerprint of the public key */
790 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
792 verify = silc_calloc(1, sizeof(*verify));
793 verify->client = client;
795 verify->filename = strdup(filename);
796 verify->entity = strdup(entity);
797 verify->pk = silc_calloc(pk_len, sizeof(*verify->pk));
798 memcpy(verify->pk, pk, pk_len);
799 verify->pk_len = pk_len;
800 verify->pk_type = pk_type;
801 verify->completion = completion;
802 verify->context = context;
804 /* Check whether this key already exists */
805 if (stat(filename, &st) < 0) {
806 /* Key does not exist, ask user to verify the key and save it */
808 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
809 SILCTXT_PUBKEY_RECEIVED, entity);
810 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
811 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
812 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
813 SILCTXT_PUBKEY_ACCEPT);
814 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
817 silc_free(fingerprint);
820 /* The key already exists, verify it. */
821 SilcPublicKey public_key;
822 unsigned char *encpk;
825 /* Load the key file */
826 if (!silc_pkcs_load_public_key(filename, &public_key,
828 if (!silc_pkcs_load_public_key(filename, &public_key,
829 SILC_PKCS_FILE_BIN)) {
830 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
831 SILCTXT_PUBKEY_RECEIVED, entity);
832 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
833 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
834 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
835 SILCTXT_PUBKEY_COULD_NOT_LOAD, entity);
836 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
837 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
838 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
841 silc_free(fingerprint);
845 /* Encode the key data */
846 encpk = silc_pkcs_public_key_encode(public_key, &encpk_len);
848 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
849 SILCTXT_PUBKEY_RECEIVED, entity);
850 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
851 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
852 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
853 SILCTXT_PUBKEY_MALFORMED, entity);
854 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
855 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
856 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
859 silc_free(fingerprint);
863 /* Compare the keys */
864 if (memcmp(encpk, pk, encpk_len)) {
865 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
866 SILCTXT_PUBKEY_RECEIVED, entity);
867 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
868 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
869 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
870 SILCTXT_PUBKEY_NO_MATCH, entity);
871 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
872 SILCTXT_PUBKEY_MAYBE_EXPIRED, entity);
873 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
874 SILCTXT_PUBKEY_MITM_ATTACK, entity);
876 /* Ask user to verify the key and save it */
877 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
878 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
879 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
882 silc_free(fingerprint);
886 /* Local copy matched */
888 completion(TRUE, context);
889 silc_free(fingerprint);
893 /* Verifies received public key. The `conn_type' indicates which entity
894 (server, client etc.) has sent the public key. If user decides to trust
895 the key may be saved as trusted public key for later use. The
896 `completion' must be called after the public key has been verified. */
899 silc_verify_public_key(SilcClient client, SilcClientConnection conn,
900 SilcSocketType conn_type, unsigned char *pk,
901 uint32 pk_len, SilcSKEPKType pk_type,
902 SilcVerifyPublicKey completion, void *context)
904 silc_verify_public_key_internal(client, conn, conn_type, pk,
906 completion, context);
909 /* Asks passphrase from user on the input line. */
912 SilcAskPassphrase completion;
916 void ask_passphrase_completion(const char *passphrase, void *context)
918 AskPassphrase p = (AskPassphrase)context;
919 p->completion((unsigned char *)passphrase,
920 passphrase ? strlen(passphrase) : 0, p->context);
924 void silc_ask_passphrase(SilcClient client, SilcClientConnection conn,
925 SilcAskPassphrase completion, void *context)
927 AskPassphrase p = silc_calloc(1, sizeof(*p));
928 p->completion = completion;
929 p->context = context;
931 keyboard_entry_redirect((SIGNAL_FUNC)ask_passphrase_completion,
932 "Passphrase: ", ENTRY_REDIRECT_FLAG_HIDDEN, p);
935 /* Find authentication method and authentication data by hostname and
936 port. The hostname may be IP address as well. The found authentication
937 method and authentication data is returned to `auth_meth', `auth_data'
938 and `auth_data_len'. The function returns TRUE if authentication method
939 is found and FALSE if not. `conn' may be NULL. */
941 int silc_get_auth_method(SilcClient client, SilcClientConnection conn,
942 char *hostname, uint16 port,
943 SilcProtocolAuthMeth *auth_meth,
944 unsigned char **auth_data,
945 uint32 *auth_data_len)
948 SILC_SERVER_REC *server = conn ? conn->context : NULL;
950 /* XXX must resolve from configuration whether this connection has
951 any specific authentication data */
953 *auth_meth = SILC_AUTH_NONE;
958 printformat_module("fe-common/silc", server, NULL,
959 MSGLEVEL_MODES, SILCTXT_AUTH_METH_UNRESOLVED);
965 /* Notifies application that failure packet was received. This is called
966 if there is some protocol active in the client. The `protocol' is the
967 protocol context. The `failure' is opaque pointer to the failure
968 indication. Note, that the `failure' is protocol dependant and application
969 must explicitly cast it to correct type. Usually `failure' is 32 bit
970 failure type (see protocol specs for all protocol failure types). */
972 void silc_failure(SilcClient client, SilcClientConnection conn,
973 SilcProtocol protocol, void *failure)
975 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_KEY_EXCHANGE) {
976 SilcSKEStatus status = (SilcSKEStatus)failure;
978 if (status == SILC_SKE_STATUS_BAD_VERSION)
979 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
980 SILCTXT_KE_BAD_VERSION);
981 if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY)
982 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
983 SILCTXT_KE_UNSUPPORTED_PUBLIC_KEY);
984 if (status == SILC_SKE_STATUS_UNKNOWN_GROUP)
985 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
986 SILCTXT_KE_UNKNOWN_GROUP);
987 if (status == SILC_SKE_STATUS_UNKNOWN_CIPHER)
988 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
989 SILCTXT_KE_UNKNOWN_CIPHER);
990 if (status == SILC_SKE_STATUS_UNKNOWN_PKCS)
991 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
992 SILCTXT_KE_UNKNOWN_PKCS);
993 if (status == SILC_SKE_STATUS_UNKNOWN_HASH_FUNCTION)
994 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
995 SILCTXT_KE_UNKNOWN_HASH_FUNCTION);
996 if (status == SILC_SKE_STATUS_UNKNOWN_HMAC)
997 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
998 SILCTXT_KE_UNKNOWN_HMAC);
999 if (status == SILC_SKE_STATUS_INCORRECT_SIGNATURE)
1000 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1001 SILCTXT_KE_INCORRECT_SIGNATURE);
1004 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_CONNECTION_AUTH) {
1005 uint32 err = (uint32)failure;
1007 if (err == SILC_AUTH_FAILED)
1008 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1009 SILCTXT_AUTH_FAILED);
1013 /* Asks whether the user would like to perform the key agreement protocol.
1014 This is called after we have received an key agreement packet or an
1015 reply to our key agreement packet. This returns TRUE if the user wants
1016 the library to perform the key agreement protocol and FALSE if it is not
1017 desired (application may start it later by calling the function
1018 silc_client_perform_key_agreement). */
1020 int silc_key_agreement(SilcClient client, SilcClientConnection conn,
1021 SilcClientEntry client_entry, char *hostname,
1023 SilcKeyAgreementCallback *completion,
1028 /* We will just display the info on the screen and return FALSE and user
1029 will have to start the key agreement with a command. */
1032 snprintf(portstr, sizeof(portstr) - 1, "%d", port);
1035 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1036 SILCTXT_KEY_AGREEMENT_REQUEST, client_entry->nickname);
1038 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1039 SILCTXT_KEY_AGREEMENT_REQUEST_HOST,
1040 client_entry->nickname, hostname, portstr);
1048 /* SILC client operations */
1049 SilcClientOperations ops = {
1051 silc_channel_message,
1052 silc_private_message,
1058 silc_get_auth_method,
1059 silc_verify_public_key,
1060 silc_ask_passphrase,