5 Author: Pekka Riikonen <priikone@silcnet.org>
7 Copyright (C) 1997 - 2002 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; version 2 of the License.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
20 /* This file includes the Notify packet handling. Notify packets are
21 important packets sent by the server. They tell different things to the
22 client such as nick changes, mode changes etc. */
24 #include "silcincludes.h"
25 #include "silcclient.h"
26 #include "client_internal.h"
28 /* Context used for resolving client, channel and server info. */
32 SilcSocketConnection sock;
33 } *SilcClientNotifyResolve;
35 SILC_TASK_CALLBACK(silc_client_notify_check_client)
37 SilcClientNotifyResolve res = (SilcClientNotifyResolve)context;
38 SilcClient client = res->context;
39 SilcClientConnection conn = res->sock->user_data;
40 SilcClientID *client_id = res->packet;
41 silc_client_get_client_by_id_resolve(client, conn, client_id,
44 silc_socket_free(res->sock);
48 SILC_TASK_CALLBACK(silc_client_notify_del_client_cb)
50 SilcClientNotifyResolve res = (SilcClientNotifyResolve)context;
51 SilcClient client = res->context;
52 SilcClientConnection conn = res->sock->user_data;
53 SilcClientID *client_id = res->packet;
54 SilcClientEntry client_entry;
55 client_entry = silc_client_get_client_by_id(client, conn, client_id);
57 silc_client_del_client(client, conn, client_entry);
59 silc_socket_free(res->sock);
63 /* Called when notify is received and some async operation (such as command)
64 is required before processing the notify message. This calls again the
65 silc_client_notify_by_server and reprocesses the original notify packet. */
67 static void silc_client_notify_by_server_pending(void *context, void *context2)
69 SilcClientNotifyResolve res = (SilcClientNotifyResolve)context;
70 SilcClientCommandReplyContext reply =
71 (SilcClientCommandReplyContext)context2;
73 SILC_LOG_DEBUG(("Start"));
75 if (reply && !silc_command_get_status(reply->payload, NULL, NULL))
78 silc_client_notify_by_server(res->context, res->sock, res->packet);
81 silc_socket_free(res->sock);
82 silc_packet_context_free(res->packet);
86 /* Resets the channel entry's resolve_cmd_ident after whatever-thing
87 was resolved is completed. */
89 static void silc_client_channel_cond(void *context, void *context2)
91 SilcClientNotifyResolve res = (SilcClientNotifyResolve)context;
92 SilcClient client = res->context;
93 SilcClientConnection conn = res->sock->user_data;
94 SilcChannelID *channel_id = res->packet;
95 SilcChannelEntry channel;
96 channel = silc_client_get_channel_by_id(client, conn, channel_id);
98 channel->resolve_cmd_ident = 0;
99 silc_free(channel_id);
100 silc_socket_free(res->sock);
104 /* Function that starts waiting for the `cmd_ident' to arrive and
105 marks the channel info being resolved. */
107 static void silc_client_channel_set_wait(SilcClient client,
108 SilcClientConnection conn,
109 SilcChannelEntry channel,
110 SilcUInt16 cmd_ident)
112 SilcClientNotifyResolve res;
114 if (!channel->resolve_cmd_ident) {
115 res = silc_calloc(1, sizeof(*res));
116 res->context = client;
117 res->sock = silc_socket_dup(conn->sock);
118 res->packet = silc_id_dup(channel->id, SILC_ID_CHANNEL);
119 silc_client_command_pending(conn, SILC_COMMAND_NONE, cmd_ident,
120 silc_client_channel_cond, res);
121 channel->resolve_cmd_ident = cmd_ident;
125 /* Attaches to the channel's resolving cmd ident and calls the
126 notify handling with `packet' after it's received. */
128 static void silc_client_channel_wait(SilcClient client,
129 SilcClientConnection conn,
130 SilcChannelEntry channel,
131 SilcPacketContext *packet)
133 SilcClientNotifyResolve res;
135 if (!channel->resolve_cmd_ident)
138 res = silc_calloc(1, sizeof(*res));
139 res->packet = silc_packet_context_dup(packet);
140 res->context = client;
141 res->sock = silc_socket_dup(conn->sock);
143 silc_client_command_pending(conn, SILC_COMMAND_NONE,
144 channel->resolve_cmd_ident,
145 silc_client_notify_by_server_pending, res);
148 /* Resolve client, channel or server information. */
150 static void silc_client_notify_by_server_resolve(SilcClient client,
151 SilcClientConnection conn,
152 SilcPacketContext *packet,
156 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
157 SilcBuffer idp = silc_id_payload_encode(id, id_type);
159 res->packet = silc_packet_context_dup(packet);
160 res->context = client;
161 res->sock = silc_socket_dup(conn->sock);
163 /* For client resolving use WHOIS, and otherwise use IDENTIFY */
164 if (id_type == SILC_ID_CLIENT) {
165 silc_client_command_register(client, SILC_COMMAND_WHOIS, NULL, NULL,
166 silc_client_command_reply_whois_i, 0,
168 silc_client_command_send(client, conn, SILC_COMMAND_WHOIS, conn->cmd_ident,
169 1, 4, idp->data, idp->len);
170 silc_client_command_pending(conn, SILC_COMMAND_WHOIS, conn->cmd_ident,
171 silc_client_notify_by_server_pending, res);
173 silc_client_command_register(client, SILC_COMMAND_IDENTIFY, NULL, NULL,
174 silc_client_command_reply_identify_i, 0,
176 silc_client_command_send(client, conn, SILC_COMMAND_IDENTIFY,
177 conn->cmd_ident, 1, 5, idp->data, idp->len);
178 silc_client_command_pending(conn, SILC_COMMAND_IDENTIFY, conn->cmd_ident,
179 silc_client_notify_by_server_pending, res);
181 silc_buffer_free(idp);
184 /* Received notify message from server */
186 void silc_client_notify_by_server(SilcClient client,
187 SilcSocketConnection sock,
188 SilcPacketContext *packet)
190 SilcBuffer buffer = packet->buffer;
191 SilcClientConnection conn = (SilcClientConnection)sock->user_data;
192 SilcNotifyPayload payload;
194 SilcArgumentPayload args;
198 SilcClientID *client_id = NULL;
199 SilcChannelID *channel_id = NULL;
200 SilcServerID *server_id = NULL;
201 SilcClientEntry client_entry = NULL;
202 SilcClientEntry client_entry2 = NULL;
203 SilcChannelEntry channel;
205 SilcServerEntry server;
207 SilcUInt32 tmp_len, mode;
209 SILC_LOG_DEBUG(("Start"));
211 payload = silc_notify_payload_parse(buffer->data, buffer->len);
215 type = silc_notify_get_type(payload);
216 args = silc_notify_get_args(payload);
221 case SILC_NOTIFY_TYPE_NONE:
222 /* Notify application */
223 client->internal->ops->notify(client, conn, type,
224 silc_argument_get_arg_type(args, 1, NULL));
227 case SILC_NOTIFY_TYPE_INVITE:
229 * Someone invited me to a channel. Find Client and Channel entries
230 * for the application.
233 SILC_LOG_DEBUG(("Notify: INVITE"));
236 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
240 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
244 /* Get the channel entry */
245 channel = silc_client_get_channel_by_id(client, conn, channel_id);
247 /* Get sender Client ID */
248 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
252 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
256 /* Find Client entry and if not found query it */
257 client_entry = silc_client_get_client_by_id(client, conn, client_id);
259 silc_client_notify_by_server_resolve(client, conn, packet,
260 SILC_ID_CLIENT, client_id);
264 /* Get the channel name */
265 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
269 /* Notify application */
270 client->internal->ops->notify(client, conn, type, channel, tmp,
274 case SILC_NOTIFY_TYPE_JOIN:
276 * Someone has joined to a channel. Get their ID and nickname and
277 * cache them for later use.
280 SILC_LOG_DEBUG(("Notify: JOIN"));
283 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
287 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
291 /* Find Client entry and if not found query it */
292 client_entry = silc_client_get_client_by_id(client, conn, client_id);
294 silc_client_notify_by_server_resolve(client, conn, packet,
295 SILC_ID_CLIENT, client_id);
299 /* If nickname or username hasn't been resolved, do so */
300 if (!client_entry->nickname || !client_entry->username) {
301 if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
302 client_entry->status &= ~SILC_CLIENT_STATUS_RESOLVING;
305 silc_client_notify_by_server_resolve(client, conn, packet,
306 SILC_ID_CLIENT, client_id);
307 client_entry->status |= SILC_CLIENT_STATUS_RESOLVING;
308 client_entry->resolve_cmd_ident = conn->cmd_ident;
311 if (client_entry != conn->local_entry)
312 silc_client_nickname_format(client, conn, client_entry);
316 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
320 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
324 /* Get channel entry */
325 channel = silc_client_get_channel_by_id(client, conn, channel_id);
329 /* Join the client to channel */
330 if (!silc_client_on_channel(channel, client_entry)) {
331 chu = silc_calloc(1, sizeof(*chu));
332 chu->client = client_entry;
333 chu->channel = channel;
334 silc_hash_table_add(channel->user_list, client_entry, chu);
335 silc_hash_table_add(client_entry->channels, channel, chu);
338 /* Notify application. The channel entry is sent last as this notify
339 is for channel but application don't know it from the arguments
341 client->internal->ops->notify(client, conn, type, client_entry, channel);
344 case SILC_NOTIFY_TYPE_LEAVE:
346 * Someone has left a channel. We will remove it from the channel but
347 * we'll keep it in the cache in case we'll need it later.
350 SILC_LOG_DEBUG(("Notify: LEAVE"));
353 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
357 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
361 /* Find Client entry */
363 silc_client_get_client_by_id(client, conn, client_id);
367 /* Get channel entry */
368 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
372 channel = silc_client_get_channel_by_id(client, conn, channel_id);
376 /* Remove client from channel */
377 chu = silc_client_on_channel(channel, client_entry);
379 silc_hash_table_del(client_entry->channels, channel);
380 silc_hash_table_del(channel->user_list, client_entry);
384 /* Some client implementations actually quit network by first doing
385 LEAVE and then immediately SIGNOFF. We'll check for this by doing
386 check for the client after 5 - 34 seconds. If it is not valid after
387 that we'll remove the client from cache. */
388 if (!silc_hash_table_count(client_entry->channels)) {
389 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
390 res->context = client;
391 res->sock = silc_socket_dup(conn->sock);
392 res->packet = silc_id_dup(client_id, SILC_ID_CLIENT);
393 silc_schedule_task_add(client->schedule, conn->sock->sock,
394 silc_client_notify_check_client, res,
395 (5 + (silc_rng_get_rn16(client->rng) % 29)),
396 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
399 /* Notify application. The channel entry is sent last as this notify
400 is for channel but application don't know it from the arguments
402 client->internal->ops->notify(client, conn, type, client_entry, channel);
405 case SILC_NOTIFY_TYPE_SIGNOFF:
407 * Someone left SILC. We'll remove it from all channels and from cache.
410 SILC_LOG_DEBUG(("Notify: SIGNOFF"));
413 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
417 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
421 /* Find Client entry */
423 silc_client_get_client_by_id(client, conn, client_id);
427 /* Remove from all channels */
428 silc_client_remove_from_channels(client, conn, client_entry);
430 /* Remove from cache */
431 silc_idcache_del_by_context(conn->client_cache, client_entry);
433 /* Get signoff message */
434 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
438 /* Notify application */
439 client->internal->ops->notify(client, conn, type, client_entry, tmp);
442 silc_client_del_client_entry(client, conn, client_entry);
445 case SILC_NOTIFY_TYPE_TOPIC_SET:
447 * Someone set the topic on a channel.
450 SILC_LOG_DEBUG(("Notify: TOPIC_SET"));
452 /* Get channel entry */
453 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
457 channel = silc_client_get_channel_by_id(client, conn, channel_id);
462 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
465 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
469 /* Find Client entry */
470 if (id_type == SILC_ID_CLIENT) {
471 /* Find Client entry */
473 client_entry = silc_client_get_client_by_id(client, conn, client_id);
475 silc_client_channel_set_wait(client, conn, channel,
476 conn->cmd_ident + 1);
477 silc_client_notify_by_server_resolve(client, conn, packet,
478 SILC_ID_CLIENT, client_id);
481 } else if (id_type == SILC_ID_SERVER) {
482 /* Find Server entry */
484 server = silc_client_get_server_by_id(client, conn, server_id);
486 silc_client_channel_set_wait(client, conn, channel,
487 conn->cmd_ident + 1);
488 silc_client_notify_by_server_resolve(client, conn, packet,
489 SILC_ID_SERVER, server_id);
490 server = silc_client_add_server(client, conn, NULL, NULL, server_id);
494 server->resolve_cmd_ident = conn->cmd_ident;
499 /* If entry being resoled, wait for it before processing this notify */
500 if (server->resolve_cmd_ident) {
501 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
502 res->packet = silc_packet_context_dup(packet);
503 res->context = client;
504 res->sock = silc_socket_dup(conn->sock);
505 silc_client_command_pending(conn, SILC_COMMAND_NONE,
506 server->resolve_cmd_ident,
507 silc_client_notify_by_server_pending, res);
511 /* Save the pointer to the client_entry pointer */
512 client_entry = (SilcClientEntry)server;
514 /* Find Channel entry */
515 silc_free(channel_id);
517 client_entry = (SilcClientEntry)
518 silc_client_get_channel_by_id(client, conn, channel_id);
520 silc_client_channel_set_wait(client, conn, channel,
521 conn->cmd_ident + 1);
522 silc_client_notify_by_server_resolve(client, conn, packet,
523 SILC_ID_CHANNEL, channel_id);
529 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
533 /* If information is being resolved for this channel, wait for it */
534 if (channel->resolve_cmd_ident) {
535 silc_client_channel_wait(client, conn, channel, packet);
539 /* Notify application. The channel entry is sent last as this notify
540 is for channel but application don't know it from the arguments
542 client->internal->ops->notify(client, conn, type, id_type,
543 client_entry, tmp, channel);
547 case SILC_NOTIFY_TYPE_NICK_CHANGE:
549 * Someone changed their nickname. If we don't have entry for the new
550 * ID we will query it and return here after it's done. After we've
551 * returned we fetch the old entry and free it and notify the
555 SILC_LOG_DEBUG(("Notify: NICK_CHANGE"));
557 /* Get old Client ID */
558 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
562 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
567 if (conn->local_id && SILC_ID_CLIENT_COMPARE(client_id, conn->local_id))
570 /* Find old Client entry */
571 client_entry = silc_client_get_client_by_id(client, conn, client_id);
574 silc_free(client_id);
576 /* Wait for resolving if necessary */
577 if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
578 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
579 res->packet = silc_packet_context_dup(packet);
580 res->context = client;
581 res->sock = silc_socket_dup(conn->sock);
582 silc_client_command_pending(conn, SILC_COMMAND_NONE,
583 client_entry->resolve_cmd_ident,
584 silc_client_notify_by_server_pending, res);
588 client_entry->valid = FALSE;
590 /* Get new Client ID */
591 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
595 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
599 /* From protocol version 1.1 we get the new nickname in notify as well,
600 so we don't have to resolve it. Do it the hard way if server doesn't
602 tmp = silc_argument_get_arg_type(args, 3, NULL);
604 /* Protocol version 1.1 */
605 char *tmp_nick = NULL;
607 /* Check whether nickname changed at all. It is possible that nick
608 change notify is received but nickname didn't changed, only the
610 if (client->internal->params->nickname_parse)
611 client->internal->params->nickname_parse(client_entry->nickname,
614 tmp_nick = strdup(tmp);
616 if (tmp_nick && !strcmp(tmp, tmp_nick)) {
617 /* Nickname didn't change. Update only the ID */
618 silc_idcache_del_by_context(conn->client_cache, client_entry);
619 silc_free(client_entry->id);
620 client_entry->id = silc_id_dup(client_id, SILC_ID_CLIENT);
621 silc_idcache_add(conn->client_cache, strdup(tmp),
622 client_entry->id, client_entry, 0, NULL);
624 /* Notify application */
625 client->internal->ops->notify(client, conn, type,
626 client_entry, client_entry);
631 /* Create new client entry, and save all old information with the
632 new nickname and client ID */
633 client_entry2 = silc_client_add_client(client, conn, NULL, NULL,
634 client_entry->realname,
635 silc_id_dup(client_id,
640 if (client_entry->server)
641 client_entry2->server = strdup(client_entry->server);
642 if (client_entry->username)
643 client_entry2->username = strdup(client_entry->username);
644 if (client_entry->hostname)
645 client_entry2->hostname = strdup(client_entry->hostname);
646 silc_client_update_client(client, conn, client_entry2, tmp, NULL, NULL,
649 /* Protocol version 1.0 */
651 /* Find client entry and if not found resolve it */
652 client_entry2 = silc_client_get_client_by_id(client, conn, client_id);
653 if (!client_entry2) {
654 /* Resolve the entry information */
655 silc_client_notify_by_server_resolve(client, conn, packet,
656 SILC_ID_CLIENT, client_id);
658 /* Add the new entry even though we resolved it. This is because we
659 want to replace the old entry with the new entry here right now. */
661 silc_client_add_client(client, conn, NULL, NULL, NULL,
662 silc_id_dup(client_id, SILC_ID_CLIENT),
665 /* Replace old ID entry with new one on all channels. */
666 silc_client_replace_from_channels(client, conn, client_entry,
671 if (client_entry2 != conn->local_entry)
672 silc_client_nickname_format(client, conn, client_entry2);
675 /* Remove the old from cache */
676 silc_idcache_del_by_context(conn->client_cache, client_entry);
678 /* Replace old ID entry with new one on all channels. */
679 silc_client_replace_from_channels(client, conn, client_entry,
682 /* Notify application */
683 client->internal->ops->notify(client, conn, type,
684 client_entry, client_entry2);
686 /* Free old client entry */
687 silc_client_del_client_entry(client, conn, client_entry);
691 case SILC_NOTIFY_TYPE_CMODE_CHANGE:
693 * Someone changed a channel mode
696 SILC_LOG_DEBUG(("Notify: CMODE_CHANGE"));
698 /* Get channel entry */
699 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
703 channel = silc_client_get_channel_by_id(client, conn, channel_id);
708 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
711 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
715 /* Find Client entry */
716 if (id_type == SILC_ID_CLIENT) {
717 /* Find Client entry */
719 client_entry = silc_client_get_client_by_id(client, conn, client_id);
721 silc_client_channel_set_wait(client, conn, channel,
722 conn->cmd_ident + 1);
723 silc_client_notify_by_server_resolve(client, conn, packet,
724 SILC_ID_CLIENT, client_id);
727 } else if (id_type == SILC_ID_SERVER) {
728 /* Find Server entry */
730 server = silc_client_get_server_by_id(client, conn, server_id);
732 silc_client_channel_set_wait(client, conn, channel,
733 conn->cmd_ident + 1);
734 silc_client_notify_by_server_resolve(client, conn, packet,
735 SILC_ID_SERVER, server_id);
736 server = silc_client_add_server(client, conn, NULL, NULL, server_id);
740 server->resolve_cmd_ident = conn->cmd_ident;
745 /* If entry being resoled, wait for it before processing this notify */
746 if (server->resolve_cmd_ident) {
747 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
748 res->packet = silc_packet_context_dup(packet);
749 res->context = client;
750 res->sock = silc_socket_dup(conn->sock);
751 silc_client_command_pending(conn, SILC_COMMAND_NONE,
752 server->resolve_cmd_ident,
753 silc_client_notify_by_server_pending, res);
757 /* Save the pointer to the client_entry pointer */
758 client_entry = (SilcClientEntry)server;
760 /* Find Channel entry */
761 silc_free(channel_id);
763 client_entry = (SilcClientEntry)
764 silc_client_get_channel_by_id(client, conn, channel_id);
766 silc_client_channel_set_wait(client, conn, channel,
767 conn->cmd_ident + 1);
768 silc_client_notify_by_server_resolve(client, conn, packet,
769 SILC_ID_CHANNEL, channel_id);
775 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
779 SILC_GET32_MSB(mode, tmp);
781 /* If information is being resolved for this channel, wait for it */
782 if (channel->resolve_cmd_ident) {
783 silc_client_channel_wait(client, conn, channel, packet);
787 /* Save the new mode */
788 channel->mode = mode;
791 tmp = silc_argument_get_arg_type(args, 4, &tmp_len);
793 unsigned char hash[32];
796 silc_hmac_free(channel->hmac);
797 if (!silc_hmac_alloc(tmp, NULL, &channel->hmac))
800 silc_hash_make(silc_hmac_get_hash(channel->hmac),
801 channel->key, channel->key_len / 8,
803 silc_hmac_set_key(channel->hmac, hash,
804 silc_hash_len(silc_hmac_get_hash(channel->hmac)));
805 memset(hash, 0, sizeof(hash));
808 /* Notify application. The channel entry is sent last as this notify
809 is for channel but application don't know it from the arguments
811 client->internal->ops->notify(client, conn, type, id_type,
812 client_entry, mode, NULL, tmp, channel);
815 case SILC_NOTIFY_TYPE_CUMODE_CHANGE:
817 * Someone changed user's mode on a channel
820 SILC_LOG_DEBUG(("Notify: CUMODE_CHANGE"));
822 /* Get channel entry */
823 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
827 channel = silc_client_get_channel_by_id(client, conn, channel_id);
832 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
835 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
839 /* Find Client entry */
840 if (id_type == SILC_ID_CLIENT) {
841 /* Find Client entry */
843 client_entry = silc_client_get_client_by_id(client, conn, client_id);
845 silc_client_channel_set_wait(client, conn, channel,
846 conn->cmd_ident + 1);
847 silc_client_notify_by_server_resolve(client, conn, packet,
848 SILC_ID_CLIENT, client_id);
851 } else if (id_type == SILC_ID_SERVER) {
852 /* Find Server entry */
854 server = silc_client_get_server_by_id(client, conn, server_id);
856 silc_client_channel_set_wait(client, conn, channel,
857 conn->cmd_ident + 1);
858 silc_client_notify_by_server_resolve(client, conn, packet,
859 SILC_ID_SERVER, server_id);
860 server = silc_client_add_server(client, conn, NULL, NULL, server_id);
864 server->resolve_cmd_ident = conn->cmd_ident;
869 /* If entry being resoled, wait for it before processing this notify */
870 if (server->resolve_cmd_ident) {
871 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
872 res->packet = silc_packet_context_dup(packet);
873 res->context = client;
874 res->sock = silc_socket_dup(conn->sock);
875 silc_client_command_pending(conn, SILC_COMMAND_NONE,
876 server->resolve_cmd_ident,
877 silc_client_notify_by_server_pending, res);
881 /* Save the pointer to the client_entry pointer */
882 client_entry = (SilcClientEntry)server;
884 /* Find Channel entry */
885 silc_free(channel_id);
887 client_entry = (SilcClientEntry)
888 silc_client_get_channel_by_id(client, conn, channel_id);
890 silc_client_channel_set_wait(client, conn, channel,
891 conn->cmd_ident + 1);
892 silc_client_notify_by_server_resolve(client, conn, packet,
893 SILC_ID_CHANNEL, channel_id);
899 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
903 SILC_GET32_MSB(mode, tmp);
905 /* If information is being resolved for this channel, wait for it */
906 if (channel->resolve_cmd_ident) {
907 silc_client_channel_wait(client, conn, channel, packet);
911 /* Get target Client ID */
912 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
916 silc_free(client_id);
917 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
921 /* Find target Client entry */
923 silc_client_get_client_by_id(client, conn, client_id);
924 if (!client_entry2) {
925 silc_client_notify_by_server_resolve(client, conn, packet,
926 SILC_ID_CLIENT, client_id);
931 chu = silc_client_on_channel(channel, client_entry2);
935 /* Notify application. The channel entry is sent last as this notify
936 is for channel but application don't know it from the arguments
938 client->internal->ops->notify(client, conn, type,
939 id_type, client_entry, mode,
940 client_entry2, channel);
943 case SILC_NOTIFY_TYPE_MOTD:
945 * Received Message of the day
948 SILC_LOG_DEBUG(("Notify: MOTD"));
951 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
955 /* Notify application */
956 client->internal->ops->notify(client, conn, type, tmp);
959 case SILC_NOTIFY_TYPE_CHANNEL_CHANGE:
961 * Router has enforced a new ID to a channel. Let's change the old
962 * ID to the one provided here.
965 SILC_LOG_DEBUG(("Notify: CHANNEL_CHANGE"));
968 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
971 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
975 /* Get the channel entry */
976 channel = silc_client_get_channel_by_id(client, conn, channel_id);
980 silc_free(channel_id);
983 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
986 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
990 /* Replace the Channel ID */
991 if (silc_client_replace_channel_id(client, conn, channel, channel_id))
994 /* Notify application */
995 client->internal->ops->notify(client, conn, type, channel, channel);
998 case SILC_NOTIFY_TYPE_KICKED:
1000 * A client (maybe me) was kicked from a channel
1003 SILC_LOG_DEBUG(("Notify: KICKED"));
1006 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1010 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1014 /* Find Client entry */
1015 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1019 /* Get channel entry */
1020 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
1024 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1028 /* From protocol version 1.1 we get the kicker's client ID as well */
1029 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1031 silc_free(client_id);
1032 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1036 /* Find kicker's client entry and if not found resolve it */
1037 client_entry2 = silc_client_get_client_by_id(client, conn, client_id);
1038 if (!client_entry2) {
1039 silc_client_notify_by_server_resolve(client, conn, packet,
1040 SILC_ID_CLIENT, client_id);
1043 if (client_entry2 != conn->local_entry)
1044 silc_client_nickname_format(client, conn, client_entry2);
1049 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1051 /* Notify application. The channel entry is sent last as this notify
1052 is for channel but application don't know it from the arguments
1054 client->internal->ops->notify(client, conn, type, client_entry, tmp,
1055 client_entry2, channel);
1057 /* Remove kicked client from channel */
1058 if (client_entry == conn->local_entry) {
1059 /* If I was kicked from channel, remove the channel */
1060 if (conn->current_channel == channel)
1061 conn->current_channel = NULL;
1062 silc_client_del_channel(client, conn, channel);
1064 chu = silc_client_on_channel(channel, client_entry);
1066 silc_hash_table_del(client_entry->channels, channel);
1067 silc_hash_table_del(channel->user_list, client_entry);
1071 if (!silc_hash_table_count(client_entry->channels)) {
1072 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1073 res->context = client;
1074 res->sock = silc_socket_dup(conn->sock);
1075 res->packet = silc_id_dup(client_entry->id, SILC_ID_CLIENT);
1076 silc_schedule_task_add(client->schedule, conn->sock->sock,
1077 silc_client_notify_check_client, res,
1078 (5 + (silc_rng_get_rn16(client->rng) % 529)),
1079 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
1084 case SILC_NOTIFY_TYPE_KILLED:
1087 * A client (maybe me) was killed from the network.
1090 SilcUInt32 comment_len;
1092 SILC_LOG_DEBUG(("Notify: KILLED"));
1095 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1099 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1103 /* Find Client entry */
1104 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1109 comment = silc_argument_get_arg_type(args, 2, &comment_len);
1111 /* From protocol version 1.1 we get killer's client ID as well */
1112 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1114 silc_free(client_id);
1115 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
1119 /* Find Client entry */
1120 if (id_type == SILC_ID_CLIENT) {
1121 /* Find Client entry */
1123 client_entry2 = silc_client_get_client_by_id(client, conn,
1125 if (!client_entry) {
1126 silc_client_notify_by_server_resolve(client, conn, packet,
1127 SILC_ID_CLIENT, client_id);
1130 } else if (id_type == SILC_ID_SERVER) {
1131 /* Find Server entry */
1133 server = silc_client_get_server_by_id(client, conn, server_id);
1135 silc_client_notify_by_server_resolve(client, conn, packet,
1136 SILC_ID_SERVER, server_id);
1137 server = silc_client_add_server(client, conn, NULL, NULL,
1142 server->resolve_cmd_ident = conn->cmd_ident;
1147 if (server->resolve_cmd_ident) {
1148 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1149 res->packet = silc_packet_context_dup(packet);
1150 res->context = client;
1151 res->sock = silc_socket_dup(conn->sock);
1152 silc_client_command_pending(conn, SILC_COMMAND_NONE,
1153 server->resolve_cmd_ident,
1154 silc_client_notify_by_server_pending,
1159 /* Save the pointer to the client_entry pointer */
1160 client_entry2 = (SilcClientEntry)server;
1162 /* Find Channel entry */
1164 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1166 silc_client_notify_by_server_resolve(client, conn, packet,
1167 SILC_ID_CHANNEL, channel_id);
1171 /* Save the pointer to the client_entry pointer */
1172 client_entry2 = (SilcClientEntry)channel;
1173 silc_free(channel_id);
1178 /* Notify application. */
1179 client->internal->ops->notify(client, conn, type, client_entry,
1180 comment, id_type, client_entry2);
1182 if (client_entry != conn->local_entry)
1183 /* Remove the client from all channels and free it */
1184 silc_client_del_client(client, conn, client_entry);
1188 case SILC_NOTIFY_TYPE_SERVER_SIGNOFF:
1191 * A server quit the SILC network and some clients must be removed
1192 * from channels as they quit as well.
1194 SilcClientEntry *clients = NULL;
1195 SilcUInt32 clients_count = 0;
1198 SILC_LOG_DEBUG(("Notify: SIGNOFF"));
1200 for (i = 1; i < silc_argument_get_arg_num(args); i++) {
1202 tmp = silc_argument_get_arg_type(args, i + 1, &tmp_len);
1204 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1208 /* Get the client entry */
1209 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1211 clients = silc_realloc(clients, sizeof(*clients) *
1212 (clients_count + 1));
1213 clients[clients_count] = client_entry;
1216 silc_free(client_id);
1221 /* Notify application. We don't keep server entries so the server
1222 entry is returned as NULL. The client's are returned as array
1223 of SilcClientEntry pointers. */
1224 client->internal->ops->notify(client, conn, type, NULL,
1225 clients, clients_count);
1227 for (i = 0; i < clients_count; i++) {
1228 /* Remove client from all channels */
1229 client_entry = clients[i];
1230 if (client_entry == conn->local_entry)
1233 /* Remove the client from all channels and free it */
1234 silc_client_del_client(client, conn, client_entry);
1241 case SILC_NOTIFY_TYPE_ERROR:
1244 * Some has occurred and server is notifying us about it.
1248 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1249 if (!tmp && tmp_len != 1)
1251 error = (SilcStatus)tmp[0];
1253 SILC_LOG_DEBUG(("Notify: ERROR (%d)", error));
1255 if (error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
1256 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1258 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1261 client_entry = silc_client_get_client_by_id(client, conn,
1264 silc_client_del_client(client, conn, client_entry);
1268 /* Notify application. */
1269 client->internal->ops->notify(client, conn, type, error);
1273 case SILC_NOTIFY_TYPE_WATCH:
1276 * Received notify about some client we are watching
1278 SilcNotifyType notify = 0;
1279 bool del_client = FALSE;
1281 SILC_LOG_DEBUG(("Notify: WATCH"));
1283 /* Get sender Client ID */
1284 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1287 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1291 /* Find Client entry and if not found query it */
1292 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1293 if (!client_entry) {
1294 silc_client_notify_by_server_resolve(client, conn, packet,
1295 SILC_ID_CLIENT, client_id);
1300 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1301 if (!tmp || tmp_len != 4)
1303 SILC_GET32_MSB(mode, tmp);
1305 /* Get notify type */
1306 tmp = silc_argument_get_arg_type(args, 4, &tmp_len);
1307 if (tmp && tmp_len != 2)
1310 SILC_GET16_MSB(notify, tmp);
1313 tmp = silc_argument_get_arg_type(args, 2, NULL);
1315 char *tmp_nick = NULL;
1317 if (client->internal->params->nickname_parse)
1318 client->internal->params->nickname_parse(client_entry->nickname,
1321 tmp_nick = strdup(tmp);
1323 /* If same nick, the client was new to us and has become "present"
1324 to network. Send NULL as nick to application. */
1325 if (tmp_nick && !strcmp(tmp, tmp_nick))
1328 silc_free(tmp_nick);
1331 /* Notify application. */
1332 client->internal->ops->notify(client, conn, type, client_entry,
1335 client_entry->mode = mode;
1337 /* If nickname was changed, remove the client entry unless the
1338 client is on some channel */
1339 if (tmp && notify == SILC_NOTIFY_TYPE_NICK_CHANGE &&
1340 !silc_hash_table_count(client_entry->channels))
1342 else if (notify == SILC_NOTIFY_TYPE_SIGNOFF ||
1343 notify == SILC_NOTIFY_TYPE_SERVER_SIGNOFF ||
1344 notify == SILC_NOTIFY_TYPE_KILLED)
1348 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1349 res->context = client;
1350 res->sock = silc_socket_dup(conn->sock);
1351 res->packet = client_id;
1353 silc_schedule_task_add(client->schedule, conn->sock->sock,
1354 silc_client_notify_del_client_cb, res,
1355 1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
1365 silc_notify_payload_free(payload);
1366 silc_free(client_id);
1367 silc_free(channel_id);
1368 silc_free(server_id);