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);
728 if (!client_entry->nickname) {
729 if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
730 /* Attach to existing resolving */
731 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
732 res->packet = silc_packet_context_dup(packet);
733 res->context = client;
734 res->sock = silc_socket_dup(conn->sock);
735 silc_client_command_pending(conn, SILC_COMMAND_NONE,
736 client_entry->resolve_cmd_ident,
737 silc_client_notify_by_server_pending,
742 /* Do new resolving */
743 silc_client_channel_set_wait(client, conn, channel,
744 conn->cmd_ident + 1);
745 silc_client_notify_by_server_resolve(client, conn, packet,
746 SILC_ID_CLIENT, client_id);
749 } else if (id_type == SILC_ID_SERVER) {
750 /* Find Server entry */
752 server = silc_client_get_server_by_id(client, conn, server_id);
754 silc_client_channel_set_wait(client, conn, channel,
755 conn->cmd_ident + 1);
756 silc_client_notify_by_server_resolve(client, conn, packet,
757 SILC_ID_SERVER, server_id);
758 server = silc_client_add_server(client, conn, NULL, NULL, server_id);
762 server->resolve_cmd_ident = conn->cmd_ident;
767 /* If entry being resoled, wait for it before processing this notify */
768 if (server->resolve_cmd_ident) {
769 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
770 res->packet = silc_packet_context_dup(packet);
771 res->context = client;
772 res->sock = silc_socket_dup(conn->sock);
773 silc_client_command_pending(conn, SILC_COMMAND_NONE,
774 server->resolve_cmd_ident,
775 silc_client_notify_by_server_pending, res);
779 /* Save the pointer to the client_entry pointer */
780 client_entry = (SilcClientEntry)server;
782 /* Find Channel entry */
783 silc_free(channel_id);
785 client_entry = (SilcClientEntry)
786 silc_client_get_channel_by_id(client, conn, channel_id);
788 silc_client_channel_set_wait(client, conn, channel,
789 conn->cmd_ident + 1);
790 silc_client_notify_by_server_resolve(client, conn, packet,
791 SILC_ID_CHANNEL, channel_id);
797 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
801 SILC_GET32_MSB(mode, tmp);
803 /* If information is being resolved for this channel, wait for it */
804 if (channel->resolve_cmd_ident) {
805 silc_client_channel_wait(client, conn, channel, packet);
809 /* Save the new mode */
810 channel->mode = mode;
813 tmp = silc_argument_get_arg_type(args, 4, &tmp_len);
815 unsigned char hash[32];
818 silc_hmac_free(channel->hmac);
819 if (!silc_hmac_alloc(tmp, NULL, &channel->hmac))
822 silc_hash_make(silc_hmac_get_hash(channel->hmac),
823 channel->key, channel->key_len / 8,
825 silc_hmac_set_key(channel->hmac, hash,
826 silc_hash_len(silc_hmac_get_hash(channel->hmac)));
827 memset(hash, 0, sizeof(hash));
830 /* Notify application. The channel entry is sent last as this notify
831 is for channel but application don't know it from the arguments
833 client->internal->ops->notify(client, conn, type, id_type,
834 client_entry, mode, NULL, tmp, channel);
837 case SILC_NOTIFY_TYPE_CUMODE_CHANGE:
839 * Someone changed user's mode on a channel
842 SILC_LOG_DEBUG(("Notify: CUMODE_CHANGE"));
844 /* Get channel entry */
845 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
849 channel = silc_client_get_channel_by_id(client, conn, channel_id);
854 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
857 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
861 /* Find Client entry */
862 if (id_type == SILC_ID_CLIENT) {
863 /* Find Client entry */
865 client_entry = silc_client_get_client_by_id(client, conn, client_id);
867 silc_client_channel_set_wait(client, conn, channel,
868 conn->cmd_ident + 1);
869 silc_client_notify_by_server_resolve(client, conn, packet,
870 SILC_ID_CLIENT, client_id);
874 if (!client_entry->nickname) {
875 if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
876 /* Attach to existing resolving */
877 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
878 res->packet = silc_packet_context_dup(packet);
879 res->context = client;
880 res->sock = silc_socket_dup(conn->sock);
881 silc_client_command_pending(conn, SILC_COMMAND_NONE,
882 client_entry->resolve_cmd_ident,
883 silc_client_notify_by_server_pending,
888 /* Do new resolving */
889 silc_client_channel_set_wait(client, conn, channel,
890 conn->cmd_ident + 1);
891 silc_client_notify_by_server_resolve(client, conn, packet,
892 SILC_ID_CLIENT, client_id);
895 } else if (id_type == SILC_ID_SERVER) {
896 /* Find Server entry */
898 server = silc_client_get_server_by_id(client, conn, server_id);
900 silc_client_channel_set_wait(client, conn, channel,
901 conn->cmd_ident + 1);
902 silc_client_notify_by_server_resolve(client, conn, packet,
903 SILC_ID_SERVER, server_id);
904 server = silc_client_add_server(client, conn, NULL, NULL, server_id);
908 server->resolve_cmd_ident = conn->cmd_ident;
913 /* If entry being resoled, wait for it before processing this notify */
914 if (server->resolve_cmd_ident) {
915 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
916 res->packet = silc_packet_context_dup(packet);
917 res->context = client;
918 res->sock = silc_socket_dup(conn->sock);
919 silc_client_command_pending(conn, SILC_COMMAND_NONE,
920 server->resolve_cmd_ident,
921 silc_client_notify_by_server_pending, res);
925 /* Save the pointer to the client_entry pointer */
926 client_entry = (SilcClientEntry)server;
928 /* Find Channel entry */
929 silc_free(channel_id);
931 client_entry = (SilcClientEntry)
932 silc_client_get_channel_by_id(client, conn, channel_id);
934 silc_client_channel_set_wait(client, conn, channel,
935 conn->cmd_ident + 1);
936 silc_client_notify_by_server_resolve(client, conn, packet,
937 SILC_ID_CHANNEL, channel_id);
943 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
947 SILC_GET32_MSB(mode, tmp);
949 /* If information is being resolved for this channel, wait for it */
950 if (channel->resolve_cmd_ident) {
951 silc_client_channel_wait(client, conn, channel, packet);
955 /* Get target Client ID */
956 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
960 silc_free(client_id);
961 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
965 /* Find target Client entry */
967 silc_client_get_client_by_id(client, conn, client_id);
968 if (!client_entry2) {
969 silc_client_notify_by_server_resolve(client, conn, packet,
970 SILC_ID_CLIENT, client_id);
975 chu = silc_client_on_channel(channel, client_entry2);
979 /* Notify application. The channel entry is sent last as this notify
980 is for channel but application don't know it from the arguments
982 client->internal->ops->notify(client, conn, type,
983 id_type, client_entry, mode,
984 client_entry2, channel);
987 case SILC_NOTIFY_TYPE_MOTD:
989 * Received Message of the day
992 SILC_LOG_DEBUG(("Notify: MOTD"));
995 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
999 /* Notify application */
1000 client->internal->ops->notify(client, conn, type, tmp);
1003 case SILC_NOTIFY_TYPE_CHANNEL_CHANGE:
1005 * Router has enforced a new ID to a channel. Let's change the old
1006 * ID to the one provided here.
1009 SILC_LOG_DEBUG(("Notify: CHANNEL_CHANGE"));
1011 /* Get the old ID */
1012 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1015 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1019 /* Get the channel entry */
1020 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1024 silc_free(channel_id);
1026 /* Get the new ID */
1027 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1030 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1034 /* Replace the Channel ID */
1035 if (silc_client_replace_channel_id(client, conn, channel, channel_id))
1038 /* Notify application */
1039 client->internal->ops->notify(client, conn, type, channel, channel);
1042 case SILC_NOTIFY_TYPE_KICKED:
1044 * A client (maybe me) was kicked from a channel
1047 SILC_LOG_DEBUG(("Notify: KICKED"));
1050 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1054 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1058 /* Find Client entry */
1059 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1063 /* Get channel entry */
1064 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
1068 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1072 /* From protocol version 1.1 we get the kicker's client ID as well */
1073 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1075 silc_free(client_id);
1076 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1080 /* Find kicker's client entry and if not found resolve it */
1081 client_entry2 = silc_client_get_client_by_id(client, conn, client_id);
1082 if (!client_entry2) {
1083 silc_client_notify_by_server_resolve(client, conn, packet,
1084 SILC_ID_CLIENT, client_id);
1087 if (client_entry2 != conn->local_entry)
1088 silc_client_nickname_format(client, conn, client_entry2);
1093 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1095 /* Notify application. The channel entry is sent last as this notify
1096 is for channel but application don't know it from the arguments
1098 client->internal->ops->notify(client, conn, type, client_entry, tmp,
1099 client_entry2, channel);
1101 /* Remove kicked client from channel */
1102 if (client_entry == conn->local_entry) {
1103 /* If I was kicked from channel, remove the channel */
1104 if (conn->current_channel == channel)
1105 conn->current_channel = NULL;
1106 silc_client_del_channel(client, conn, channel);
1108 chu = silc_client_on_channel(channel, client_entry);
1110 silc_hash_table_del(client_entry->channels, channel);
1111 silc_hash_table_del(channel->user_list, client_entry);
1115 if (!silc_hash_table_count(client_entry->channels)) {
1116 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1117 res->context = client;
1118 res->sock = silc_socket_dup(conn->sock);
1119 res->packet = silc_id_dup(client_entry->id, SILC_ID_CLIENT);
1120 silc_schedule_task_add(client->schedule, conn->sock->sock,
1121 silc_client_notify_check_client, res,
1122 (5 + (silc_rng_get_rn16(client->rng) % 529)),
1123 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
1128 case SILC_NOTIFY_TYPE_KILLED:
1131 * A client (maybe me) was killed from the network.
1134 SilcUInt32 comment_len;
1136 SILC_LOG_DEBUG(("Notify: KILLED"));
1139 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1143 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1147 /* Find Client entry */
1148 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1153 comment = silc_argument_get_arg_type(args, 2, &comment_len);
1155 /* From protocol version 1.1 we get killer's client ID as well */
1156 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1158 silc_free(client_id);
1159 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
1163 /* Find Client entry */
1164 if (id_type == SILC_ID_CLIENT) {
1165 /* Find Client entry */
1167 client_entry2 = silc_client_get_client_by_id(client, conn,
1169 if (!client_entry) {
1170 silc_client_notify_by_server_resolve(client, conn, packet,
1171 SILC_ID_CLIENT, client_id);
1174 } else if (id_type == SILC_ID_SERVER) {
1175 /* Find Server entry */
1177 server = silc_client_get_server_by_id(client, conn, server_id);
1179 silc_client_notify_by_server_resolve(client, conn, packet,
1180 SILC_ID_SERVER, server_id);
1181 server = silc_client_add_server(client, conn, NULL, NULL,
1186 server->resolve_cmd_ident = conn->cmd_ident;
1191 if (server->resolve_cmd_ident) {
1192 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1193 res->packet = silc_packet_context_dup(packet);
1194 res->context = client;
1195 res->sock = silc_socket_dup(conn->sock);
1196 silc_client_command_pending(conn, SILC_COMMAND_NONE,
1197 server->resolve_cmd_ident,
1198 silc_client_notify_by_server_pending,
1203 /* Save the pointer to the client_entry pointer */
1204 client_entry2 = (SilcClientEntry)server;
1206 /* Find Channel entry */
1208 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1210 silc_client_notify_by_server_resolve(client, conn, packet,
1211 SILC_ID_CHANNEL, channel_id);
1215 /* Save the pointer to the client_entry pointer */
1216 client_entry2 = (SilcClientEntry)channel;
1217 silc_free(channel_id);
1222 /* Notify application. */
1223 client->internal->ops->notify(client, conn, type, client_entry,
1224 comment, id_type, client_entry2);
1226 if (client_entry != conn->local_entry)
1227 /* Remove the client from all channels and free it */
1228 silc_client_del_client(client, conn, client_entry);
1232 case SILC_NOTIFY_TYPE_SERVER_SIGNOFF:
1235 * A server quit the SILC network and some clients must be removed
1236 * from channels as they quit as well.
1238 SilcClientEntry *clients = NULL;
1239 SilcUInt32 clients_count = 0;
1242 SILC_LOG_DEBUG(("Notify: SIGNOFF"));
1244 for (i = 1; i < silc_argument_get_arg_num(args); i++) {
1246 tmp = silc_argument_get_arg_type(args, i + 1, &tmp_len);
1248 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1252 /* Get the client entry */
1253 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1255 clients = silc_realloc(clients, sizeof(*clients) *
1256 (clients_count + 1));
1257 clients[clients_count] = client_entry;
1260 silc_free(client_id);
1265 /* Notify application. We don't keep server entries so the server
1266 entry is returned as NULL. The client's are returned as array
1267 of SilcClientEntry pointers. */
1268 client->internal->ops->notify(client, conn, type, NULL,
1269 clients, clients_count);
1271 for (i = 0; i < clients_count; i++) {
1272 /* Remove client from all channels */
1273 client_entry = clients[i];
1274 if (client_entry == conn->local_entry)
1277 /* Remove the client from all channels and free it */
1278 silc_client_del_client(client, conn, client_entry);
1285 case SILC_NOTIFY_TYPE_ERROR:
1288 * Some has occurred and server is notifying us about it.
1292 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1293 if (!tmp && tmp_len != 1)
1295 error = (SilcStatus)tmp[0];
1297 SILC_LOG_DEBUG(("Notify: ERROR (%d)", error));
1299 if (error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
1300 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1302 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1305 client_entry = silc_client_get_client_by_id(client, conn,
1308 silc_client_del_client(client, conn, client_entry);
1312 /* Notify application. */
1313 client->internal->ops->notify(client, conn, type, error);
1317 case SILC_NOTIFY_TYPE_WATCH:
1320 * Received notify about some client we are watching
1322 SilcNotifyType notify = 0;
1323 bool del_client = FALSE;
1325 SILC_LOG_DEBUG(("Notify: WATCH"));
1327 /* Get sender Client ID */
1328 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1331 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1335 /* Find Client entry and if not found query it */
1336 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1337 if (!client_entry) {
1338 silc_client_notify_by_server_resolve(client, conn, packet,
1339 SILC_ID_CLIENT, client_id);
1344 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1345 if (!tmp || tmp_len != 4)
1347 SILC_GET32_MSB(mode, tmp);
1349 /* Get notify type */
1350 tmp = silc_argument_get_arg_type(args, 4, &tmp_len);
1351 if (tmp && tmp_len != 2)
1354 SILC_GET16_MSB(notify, tmp);
1357 tmp = silc_argument_get_arg_type(args, 2, NULL);
1359 char *tmp_nick = NULL;
1361 if (client->internal->params->nickname_parse)
1362 client->internal->params->nickname_parse(client_entry->nickname,
1365 tmp_nick = strdup(tmp);
1367 /* If same nick, the client was new to us and has become "present"
1368 to network. Send NULL as nick to application. */
1369 if (tmp_nick && !strcmp(tmp, tmp_nick))
1372 silc_free(tmp_nick);
1375 /* Notify application. */
1376 client->internal->ops->notify(client, conn, type, client_entry,
1379 client_entry->mode = mode;
1381 /* If nickname was changed, remove the client entry unless the
1382 client is on some channel */
1383 if (tmp && notify == SILC_NOTIFY_TYPE_NICK_CHANGE &&
1384 !silc_hash_table_count(client_entry->channels))
1386 else if (notify == SILC_NOTIFY_TYPE_SIGNOFF ||
1387 notify == SILC_NOTIFY_TYPE_SERVER_SIGNOFF ||
1388 notify == SILC_NOTIFY_TYPE_KILLED)
1392 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1393 res->context = client;
1394 res->sock = silc_socket_dup(conn->sock);
1395 res->packet = client_id;
1397 silc_schedule_task_add(client->schedule, conn->sock->sock,
1398 silc_client_notify_del_client_cb, res,
1399 1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
1409 silc_notify_payload_free(payload);
1410 silc_free(client_id);
1411 silc_free(channel_id);
1412 silc_free(server_id);