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,
488 channel_entry->channel_key->cipher->name,
489 channel_entry->hmac->hmac->name);
490 g_free_not_null(chanrec->mode);
491 chanrec->mode = g_strdup(mode == NULL ? "" : mode);
492 signal_emit("channel mode changed", 1, chanrec);
494 /* Resolve the client information */
495 silc_client_get_clients_by_list(client, conn, list_count, client_id_list,
496 silc_client_join_get_users,
501 case SILC_COMMAND_NICK:
503 SilcClientEntry client = va_arg(vp, SilcClientEntry);
509 old = g_strdup(server->nick);
510 server_change_nick(SERVER(server), client->nickname);
511 nicklist_rename_unique(SERVER(server),
512 server->conn->local_entry, server->nick,
513 client, client->nickname);
515 signal_emit("message own_nick", 4, server, server->nick, old, "");
520 case SILC_COMMAND_LIST:
529 (void)va_arg(vp, SilcChannelEntry);
530 name = va_arg(vp, char *);
531 topic = va_arg(vp, char *);
532 usercount = va_arg(vp, int);
534 if (status == SILC_STATUS_LIST_START ||
535 status == SILC_STATUS_OK)
536 printformat_module("fe-common/silc", server, NULL,
537 MSGLEVEL_CRAP, SILCTXT_LIST_HEADER);
539 snprintf(users, sizeof(users) - 1, "%d", usercount);
540 printformat_module("fe-common/silc", server, NULL,
541 MSGLEVEL_CRAP, SILCTXT_LIST,
542 name, users, topic ? topic : "");
546 case SILC_COMMAND_UMODE:
553 mode = va_arg(vp, uint32);
555 if (mode & SILC_UMODE_SERVER_OPERATOR)
556 printformat_module("fe-common/silc", server, NULL,
557 MSGLEVEL_CRAP, SILCTXT_SERVER_OPER);
559 if (mode & SILC_UMODE_ROUTER_OPERATOR)
560 printformat_module("fe-common/silc", server, NULL,
561 MSGLEVEL_CRAP, SILCTXT_ROUTER_OPER);
565 case SILC_COMMAND_OPER:
569 printformat_module("fe-common/silc", server, NULL,
570 MSGLEVEL_CRAP, SILCTXT_SERVER_OPER);
573 case SILC_COMMAND_SILCOPER:
577 printformat_module("fe-common/silc", server, NULL,
578 MSGLEVEL_CRAP, SILCTXT_ROUTER_OPER);
581 case SILC_COMMAND_USERS:
583 SilcChannelEntry channel;
589 channel = va_arg(vp, SilcChannelEntry);
591 printformat_module("fe-common/silc", server, channel->channel_name,
592 MSGLEVEL_CRAP, SILCTXT_USERS_HEADER,
593 channel->channel_name);
595 silc_list_start(channel->clients);
596 while ((chu = silc_list_get(channel->clients)) != SILC_LIST_END) {
597 SilcClientEntry e = chu->client;
600 memset(stat, 0, sizeof(stat));
601 mode = silc_client_chumode_char(chu->mode);
602 if (e->mode & SILC_UMODE_GONE)
609 printformat_module("fe-common/silc", server, channel->channel_name,
610 MSGLEVEL_CRAP, SILCTXT_USERS,
611 e->nickname, stat, e->username,
612 e->realname ? e->realname : "");
619 case SILC_COMMAND_BAN:
621 SilcChannelEntry channel;
627 channel = va_arg(vp, SilcChannelEntry);
628 ban_list = va_arg(vp, char *);
631 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
632 SILCTXT_CHANNEL_BAN_LIST, channel->channel_name,
635 printformat_module("fe-common/silc", server, NULL, MSGLEVEL_CRAP,
636 SILCTXT_CHANNEL_NO_BAN_LIST,
637 channel->channel_name);
641 case SILC_COMMAND_GETKEY:
645 SilcPublicKey public_key;
649 id_type = va_arg(vp, uint32);
650 entry = va_arg(vp, void *);
651 public_key = va_arg(vp, SilcPublicKey);
653 pk = silc_pkcs_public_key_encode(public_key, &pk_len);
655 if (id_type == SILC_ID_CLIENT)
656 silc_verify_public_key_internal(client, conn, SILC_SOCKET_TYPE_CLIENT,
657 pk, pk_len, SILC_SKE_PK_TYPE_SILC,
663 case SILC_COMMAND_TOPIC:
665 SilcChannelEntry channel;
671 channel = va_arg(vp, SilcChannelEntry);
672 topic = va_arg(vp, char *);
675 chanrec = silc_channel_find_entry(server, channel);
677 g_free_not_null(chanrec->topic);
678 chanrec->topic = *topic == '\0' ? NULL : g_strdup(topic);
679 signal_emit("channel topic changed", 1, chanrec);
681 printformat_module("fe-common/silc", server, channel->channel_name,
682 MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC,
683 channel->channel_name, topic);
685 printformat_module("fe-common/silc", server, channel->channel_name,
686 MSGLEVEL_CRAP, SILCTXT_CHANNEL_TOPIC_NOT_SET,
687 channel->channel_name);
697 /* Internal routine to verify public key. If the `completion' is provided
698 it will be called to indicate whether public was verified or not. */
702 SilcClientConnection conn;
707 SilcSKEPKType pk_type;
708 SilcVerifyPublicKey completion;
712 static void verify_public_key_completion(const char *line, void *context)
714 PublicKeyVerify verify = (PublicKeyVerify)context;
716 if (line[0] == 'Y' || line[0] == 'y') {
717 /* Call the completion */
718 if (verify->completion)
719 verify->completion(TRUE, verify->context);
721 /* Save the key for future checking */
722 silc_pkcs_save_public_key_data(verify->filename, verify->pk,
723 verify->pk_len, SILC_PKCS_FILE_PEM);
725 /* Call the completion */
726 if (verify->completion)
727 verify->completion(FALSE, verify->context);
729 printformat_module("fe-common/silc", NULL, NULL,
730 MSGLEVEL_CRAP, SILCTXT_PUBKEY_DISCARD, verify->entity);
733 silc_free(verify->filename);
734 silc_free(verify->entity);
735 silc_free(verify->pk);
740 silc_verify_public_key_internal(SilcClient client, SilcClientConnection conn,
741 SilcSocketType conn_type, unsigned char *pk,
742 uint32 pk_len, SilcSKEPKType pk_type,
743 SilcVerifyPublicKey completion, void *context)
746 char file[256], filename[256], *fingerprint, *format;
749 char *entity = ((conn_type == SILC_SOCKET_TYPE_SERVER ||
750 conn_type == SILC_SOCKET_TYPE_ROUTER) ?
751 "server" : "client");
752 PublicKeyVerify verify;
754 if (pk_type != SILC_SKE_PK_TYPE_SILC) {
755 printformat_module("fe-common/silc", NULL, NULL,
756 MSGLEVEL_CRAP, SILCTXT_PUBKEY_UNSUPPORTED,
759 completion(FALSE, context);
763 pw = getpwuid(getuid());
766 completion(FALSE, context);
770 memset(filename, 0, sizeof(filename));
771 memset(file, 0, sizeof(file));
773 if (conn_type == SILC_SOCKET_TYPE_SERVER ||
774 conn_type == SILC_SOCKET_TYPE_ROUTER) {
775 snprintf(file, sizeof(file) - 1, "%skey_%s_%d.pub", entity,
776 conn->sock->hostname, conn->sock->port);
777 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
778 pw->pw_dir, entity, file);
780 /* Replace all whitespaces with `_'. */
781 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
782 for (i = 0; i < strlen(fingerprint); i++)
783 if (fingerprint[i] == ' ')
784 fingerprint[i] = '_';
786 snprintf(file, sizeof(file) - 1, "%skey_%s.pub", entity, fingerprint);
787 snprintf(filename, sizeof(filename) - 1, "%s/.silc/%skeys/%s",
788 pw->pw_dir, entity, file);
789 silc_free(fingerprint);
792 /* Take fingerprint of the public key */
793 fingerprint = silc_hash_fingerprint(NULL, pk, pk_len);
795 verify = silc_calloc(1, sizeof(*verify));
796 verify->client = client;
798 verify->filename = strdup(filename);
799 verify->entity = strdup(entity);
800 verify->pk = silc_calloc(pk_len, sizeof(*verify->pk));
801 memcpy(verify->pk, pk, pk_len);
802 verify->pk_len = pk_len;
803 verify->pk_type = pk_type;
804 verify->completion = completion;
805 verify->context = context;
807 /* Check whether this key already exists */
808 if (stat(filename, &st) < 0) {
809 /* Key does not exist, ask user to verify the key and save it */
811 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
812 SILCTXT_PUBKEY_RECEIVED, entity);
813 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
814 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
815 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
816 SILCTXT_PUBKEY_ACCEPT);
817 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
820 silc_free(fingerprint);
823 /* The key already exists, verify it. */
824 SilcPublicKey public_key;
825 unsigned char *encpk;
828 /* Load the key file */
829 if (!silc_pkcs_load_public_key(filename, &public_key,
831 if (!silc_pkcs_load_public_key(filename, &public_key,
832 SILC_PKCS_FILE_BIN)) {
833 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
834 SILCTXT_PUBKEY_RECEIVED, entity);
835 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
836 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
837 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
838 SILCTXT_PUBKEY_COULD_NOT_LOAD, entity);
839 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
840 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
841 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
844 silc_free(fingerprint);
848 /* Encode the key data */
849 encpk = silc_pkcs_public_key_encode(public_key, &encpk_len);
851 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
852 SILCTXT_PUBKEY_RECEIVED, entity);
853 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
854 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
855 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
856 SILCTXT_PUBKEY_MALFORMED, entity);
857 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
858 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
859 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
862 silc_free(fingerprint);
866 /* Compare the keys */
867 if (memcmp(encpk, pk, encpk_len)) {
868 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
869 SILCTXT_PUBKEY_RECEIVED, entity);
870 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
871 SILCTXT_PUBKEY_FINGERPRINT, entity, fingerprint);
872 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
873 SILCTXT_PUBKEY_NO_MATCH, entity);
874 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
875 SILCTXT_PUBKEY_MAYBE_EXPIRED, entity);
876 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
877 SILCTXT_PUBKEY_MITM_ATTACK, entity);
879 /* Ask user to verify the key and save it */
880 format = format_get_text("fe-common/silc", NULL, NULL, NULL,
881 SILCTXT_PUBKEY_ACCEPT_ANYWAY);
882 keyboard_entry_redirect((SIGNAL_FUNC)verify_public_key_completion,
885 silc_free(fingerprint);
889 /* Local copy matched */
891 completion(TRUE, context);
892 silc_free(fingerprint);
896 /* Verifies received public key. The `conn_type' indicates which entity
897 (server, client etc.) has sent the public key. If user decides to trust
898 the key may be saved as trusted public key for later use. The
899 `completion' must be called after the public key has been verified. */
902 silc_verify_public_key(SilcClient client, SilcClientConnection conn,
903 SilcSocketType conn_type, unsigned char *pk,
904 uint32 pk_len, SilcSKEPKType pk_type,
905 SilcVerifyPublicKey completion, void *context)
907 silc_verify_public_key_internal(client, conn, conn_type, pk,
909 completion, context);
912 /* Asks passphrase from user on the input line. */
915 SilcAskPassphrase completion;
919 void ask_passphrase_completion(const char *passphrase, void *context)
921 AskPassphrase p = (AskPassphrase)context;
922 p->completion((unsigned char *)passphrase,
923 passphrase ? strlen(passphrase) : 0, p->context);
927 void silc_ask_passphrase(SilcClient client, SilcClientConnection conn,
928 SilcAskPassphrase completion, void *context)
930 AskPassphrase p = silc_calloc(1, sizeof(*p));
931 p->completion = completion;
932 p->context = context;
934 keyboard_entry_redirect((SIGNAL_FUNC)ask_passphrase_completion,
935 "Passphrase: ", ENTRY_REDIRECT_FLAG_HIDDEN, p);
938 /* Find authentication method and authentication data by hostname and
939 port. The hostname may be IP address as well. The found authentication
940 method and authentication data is returned to `auth_meth', `auth_data'
941 and `auth_data_len'. The function returns TRUE if authentication method
942 is found and FALSE if not. `conn' may be NULL. */
944 int silc_get_auth_method(SilcClient client, SilcClientConnection conn,
945 char *hostname, uint16 port,
946 SilcProtocolAuthMeth *auth_meth,
947 unsigned char **auth_data,
948 uint32 *auth_data_len)
951 SILC_SERVER_REC *server = conn ? conn->context : NULL;
953 /* XXX must resolve from configuration whether this connection has
954 any specific authentication data */
956 *auth_meth = SILC_AUTH_NONE;
961 printformat_module("fe-common/silc", server, NULL,
962 MSGLEVEL_MODES, SILCTXT_AUTH_METH_UNRESOLVED);
968 /* Notifies application that failure packet was received. This is called
969 if there is some protocol active in the client. The `protocol' is the
970 protocol context. The `failure' is opaque pointer to the failure
971 indication. Note, that the `failure' is protocol dependant and application
972 must explicitly cast it to correct type. Usually `failure' is 32 bit
973 failure type (see protocol specs for all protocol failure types). */
975 void silc_failure(SilcClient client, SilcClientConnection conn,
976 SilcProtocol protocol, void *failure)
978 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_KEY_EXCHANGE) {
979 SilcSKEStatus status = (SilcSKEStatus)failure;
981 if (status == SILC_SKE_STATUS_BAD_VERSION)
982 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
983 SILCTXT_KE_BAD_VERSION);
984 if (status == SILC_SKE_STATUS_UNSUPPORTED_PUBLIC_KEY)
985 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
986 SILCTXT_KE_UNSUPPORTED_PUBLIC_KEY);
987 if (status == SILC_SKE_STATUS_UNKNOWN_GROUP)
988 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
989 SILCTXT_KE_UNKNOWN_GROUP);
990 if (status == SILC_SKE_STATUS_UNKNOWN_CIPHER)
991 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
992 SILCTXT_KE_UNKNOWN_CIPHER);
993 if (status == SILC_SKE_STATUS_UNKNOWN_PKCS)
994 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
995 SILCTXT_KE_UNKNOWN_PKCS);
996 if (status == SILC_SKE_STATUS_UNKNOWN_HASH_FUNCTION)
997 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
998 SILCTXT_KE_UNKNOWN_HASH_FUNCTION);
999 if (status == SILC_SKE_STATUS_UNKNOWN_HMAC)
1000 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1001 SILCTXT_KE_UNKNOWN_HMAC);
1002 if (status == SILC_SKE_STATUS_INCORRECT_SIGNATURE)
1003 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1004 SILCTXT_KE_INCORRECT_SIGNATURE);
1007 if (protocol->protocol->type == SILC_PROTOCOL_CLIENT_CONNECTION_AUTH) {
1008 uint32 err = (uint32)failure;
1010 if (err == SILC_AUTH_FAILED)
1011 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_CRAP,
1012 SILCTXT_AUTH_FAILED);
1016 /* Asks whether the user would like to perform the key agreement protocol.
1017 This is called after we have received an key agreement packet or an
1018 reply to our key agreement packet. This returns TRUE if the user wants
1019 the library to perform the key agreement protocol and FALSE if it is not
1020 desired (application may start it later by calling the function
1021 silc_client_perform_key_agreement). */
1023 int silc_key_agreement(SilcClient client, SilcClientConnection conn,
1024 SilcClientEntry client_entry, char *hostname,
1026 SilcKeyAgreementCallback *completion,
1031 /* We will just display the info on the screen and return FALSE and user
1032 will have to start the key agreement with a command. */
1035 snprintf(portstr, sizeof(portstr) - 1, "%d", port);
1038 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1039 SILCTXT_KEY_AGREEMENT_REQUEST, client_entry->nickname);
1041 printformat_module("fe-common/silc", NULL, NULL, MSGLEVEL_NOTICES,
1042 SILCTXT_KEY_AGREEMENT_REQUEST_HOST,
1043 client_entry->nickname, hostname, portstr);
1051 /* SILC client operations */
1052 SilcClientOperations ops = {
1054 silc_channel_message,
1055 silc_private_message,
1061 silc_get_auth_method,
1062 silc_verify_public_key,
1063 silc_ask_passphrase,