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->internal->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);
577 /* Wait for resolving if necessary */
578 if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
579 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
580 res->packet = silc_packet_context_dup(packet);
581 res->context = client;
582 res->sock = silc_socket_dup(conn->sock);
583 silc_client_command_pending(conn, SILC_COMMAND_NONE,
584 client_entry->resolve_cmd_ident,
585 silc_client_notify_by_server_pending, res);
589 client_entry->valid = FALSE;
591 /* Get new Client ID */
592 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
596 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
600 /* From protocol version 1.1 we get the new nickname in notify as well,
601 so we don't have to resolve it. Do it the hard way if server doesn't
603 tmp = silc_argument_get_arg_type(args, 3, NULL);
605 /* Protocol version 1.1 */
606 char *tmp_nick = NULL;
608 /* Check whether nickname changed at all. It is possible that nick
609 change notify is received but nickname didn't changed, only the
611 if (client->internal->params->nickname_parse)
612 client->internal->params->nickname_parse(client_entry->nickname,
615 tmp_nick = strdup(tmp);
617 if (tmp_nick && !strcmp(tmp, tmp_nick)) {
618 /* Nickname didn't change. Update only the ID */
619 silc_idcache_del_by_context(conn->internal->client_cache,
621 silc_free(client_entry->id);
622 client_entry->id = silc_id_dup(client_id, SILC_ID_CLIENT);
623 silc_idcache_add(conn->internal->client_cache, strdup(tmp),
624 client_entry->id, client_entry, 0, NULL);
626 /* Notify application */
627 client->internal->ops->notify(client, conn, type,
628 client_entry, client_entry);
633 /* Create new client entry, and save all old information with the
634 new nickname and client ID */
635 client_entry2 = silc_client_add_client(client, conn, NULL, NULL,
636 client_entry->realname,
637 silc_id_dup(client_id,
642 if (client_entry->server)
643 client_entry2->server = strdup(client_entry->server);
644 if (client_entry->username)
645 client_entry2->username = strdup(client_entry->username);
646 if (client_entry->hostname)
647 client_entry2->hostname = strdup(client_entry->hostname);
648 silc_client_update_client(client, conn, client_entry2, tmp, NULL, NULL,
651 /* Protocol version 1.0 */
653 /* Find client entry and if not found resolve it */
654 client_entry2 = silc_client_get_client_by_id(client, conn, client_id);
655 if (!client_entry2) {
656 /* Resolve the entry information */
657 silc_client_notify_by_server_resolve(client, conn, packet,
658 SILC_ID_CLIENT, client_id);
660 /* Add the new entry even though we resolved it. This is because we
661 want to replace the old entry with the new entry here right now. */
663 silc_client_add_client(client, conn, NULL, NULL, NULL,
664 silc_id_dup(client_id, SILC_ID_CLIENT),
667 /* Replace old ID entry with new one on all channels. */
668 silc_client_replace_from_channels(client, conn, client_entry,
673 if (client_entry2 != conn->local_entry)
674 silc_client_nickname_format(client, conn, client_entry2);
677 /* Remove the old from cache */
678 silc_idcache_del_by_context(conn->internal->client_cache, client_entry);
680 /* Replace old ID entry with new one on all channels. */
681 silc_client_replace_from_channels(client, conn, client_entry,
684 /* Notify application */
685 client->internal->ops->notify(client, conn, type,
686 client_entry, client_entry2);
688 /* Free old client entry */
689 silc_client_del_client_entry(client, conn, client_entry);
693 case SILC_NOTIFY_TYPE_CMODE_CHANGE:
695 * Someone changed a channel mode
698 SILC_LOG_DEBUG(("Notify: CMODE_CHANGE"));
700 /* Get channel entry */
701 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
705 channel = silc_client_get_channel_by_id(client, conn, channel_id);
710 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
713 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
717 /* Find Client entry */
718 if (id_type == SILC_ID_CLIENT) {
719 /* Find Client entry */
721 client_entry = silc_client_get_client_by_id(client, conn, client_id);
723 silc_client_channel_set_wait(client, conn, channel,
724 conn->cmd_ident + 1);
725 silc_client_notify_by_server_resolve(client, conn, packet,
726 SILC_ID_CLIENT, client_id);
730 if (!client_entry->nickname) {
731 if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
732 /* Attach to existing resolving */
733 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
734 res->packet = silc_packet_context_dup(packet);
735 res->context = client;
736 res->sock = silc_socket_dup(conn->sock);
737 silc_client_command_pending(conn, SILC_COMMAND_NONE,
738 client_entry->resolve_cmd_ident,
739 silc_client_notify_by_server_pending,
744 /* Do new resolving */
745 silc_client_channel_set_wait(client, conn, channel,
746 conn->cmd_ident + 1);
747 silc_client_notify_by_server_resolve(client, conn, packet,
748 SILC_ID_CLIENT, client_id);
751 } else if (id_type == SILC_ID_SERVER) {
752 /* Find Server entry */
754 server = silc_client_get_server_by_id(client, conn, server_id);
756 silc_client_channel_set_wait(client, conn, channel,
757 conn->cmd_ident + 1);
758 silc_client_notify_by_server_resolve(client, conn, packet,
759 SILC_ID_SERVER, server_id);
760 server = silc_client_add_server(client, conn, NULL, NULL, server_id);
764 server->resolve_cmd_ident = conn->cmd_ident;
769 /* If entry being resoled, wait for it before processing this notify */
770 if (server->resolve_cmd_ident) {
771 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
772 res->packet = silc_packet_context_dup(packet);
773 res->context = client;
774 res->sock = silc_socket_dup(conn->sock);
775 silc_client_command_pending(conn, SILC_COMMAND_NONE,
776 server->resolve_cmd_ident,
777 silc_client_notify_by_server_pending, res);
781 /* Save the pointer to the client_entry pointer */
782 client_entry = (SilcClientEntry)server;
784 /* Find Channel entry */
785 silc_free(channel_id);
787 client_entry = (SilcClientEntry)
788 silc_client_get_channel_by_id(client, conn, channel_id);
790 silc_client_channel_set_wait(client, conn, channel,
791 conn->cmd_ident + 1);
792 silc_client_notify_by_server_resolve(client, conn, packet,
793 SILC_ID_CHANNEL, channel_id);
799 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
803 SILC_GET32_MSB(mode, tmp);
805 /* If information is being resolved for this channel, wait for it */
806 if (channel->resolve_cmd_ident) {
807 silc_client_channel_wait(client, conn, channel, packet);
811 /* Save the new mode */
812 channel->mode = mode;
815 tmp = silc_argument_get_arg_type(args, 4, &tmp_len);
817 unsigned char hash[32];
820 silc_hmac_free(channel->hmac);
821 if (!silc_hmac_alloc(tmp, NULL, &channel->hmac))
824 silc_hash_make(silc_hmac_get_hash(channel->hmac),
825 channel->key, channel->key_len / 8,
827 silc_hmac_set_key(channel->hmac, hash,
828 silc_hash_len(silc_hmac_get_hash(channel->hmac)));
829 memset(hash, 0, sizeof(hash));
832 /* Notify application. The channel entry is sent last as this notify
833 is for channel but application don't know it from the arguments
835 client->internal->ops->notify(client, conn, type, id_type,
836 client_entry, mode, NULL, tmp, channel);
839 case SILC_NOTIFY_TYPE_CUMODE_CHANGE:
841 * Someone changed user's mode on a channel
844 SILC_LOG_DEBUG(("Notify: CUMODE_CHANGE"));
846 /* Get channel entry */
847 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
851 channel = silc_client_get_channel_by_id(client, conn, channel_id);
856 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
859 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
863 /* Find Client entry */
864 if (id_type == SILC_ID_CLIENT) {
865 /* Find Client entry */
867 client_entry = silc_client_get_client_by_id(client, conn, client_id);
869 silc_client_channel_set_wait(client, conn, channel,
870 conn->cmd_ident + 1);
871 silc_client_notify_by_server_resolve(client, conn, packet,
872 SILC_ID_CLIENT, client_id);
876 if (!client_entry->nickname) {
877 if (client_entry->status & SILC_CLIENT_STATUS_RESOLVING) {
878 /* Attach to existing resolving */
879 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
880 res->packet = silc_packet_context_dup(packet);
881 res->context = client;
882 res->sock = silc_socket_dup(conn->sock);
883 silc_client_command_pending(conn, SILC_COMMAND_NONE,
884 client_entry->resolve_cmd_ident,
885 silc_client_notify_by_server_pending,
890 /* Do new resolving */
891 silc_client_channel_set_wait(client, conn, channel,
892 conn->cmd_ident + 1);
893 silc_client_notify_by_server_resolve(client, conn, packet,
894 SILC_ID_CLIENT, client_id);
897 } else if (id_type == SILC_ID_SERVER) {
898 /* Find Server entry */
900 server = silc_client_get_server_by_id(client, conn, server_id);
902 silc_client_channel_set_wait(client, conn, channel,
903 conn->cmd_ident + 1);
904 silc_client_notify_by_server_resolve(client, conn, packet,
905 SILC_ID_SERVER, server_id);
906 server = silc_client_add_server(client, conn, NULL, NULL, server_id);
910 server->resolve_cmd_ident = conn->cmd_ident;
915 /* If entry being resoled, wait for it before processing this notify */
916 if (server->resolve_cmd_ident) {
917 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
918 res->packet = silc_packet_context_dup(packet);
919 res->context = client;
920 res->sock = silc_socket_dup(conn->sock);
921 silc_client_command_pending(conn, SILC_COMMAND_NONE,
922 server->resolve_cmd_ident,
923 silc_client_notify_by_server_pending, res);
927 /* Save the pointer to the client_entry pointer */
928 client_entry = (SilcClientEntry)server;
930 /* Find Channel entry */
931 silc_free(channel_id);
933 client_entry = (SilcClientEntry)
934 silc_client_get_channel_by_id(client, conn, channel_id);
936 silc_client_channel_set_wait(client, conn, channel,
937 conn->cmd_ident + 1);
938 silc_client_notify_by_server_resolve(client, conn, packet,
939 SILC_ID_CHANNEL, channel_id);
945 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
949 SILC_GET32_MSB(mode, tmp);
951 /* If information is being resolved for this channel, wait for it */
952 if (channel->resolve_cmd_ident) {
953 silc_client_channel_wait(client, conn, channel, packet);
957 /* Get target Client ID */
958 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
962 silc_free(client_id);
963 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
967 /* Find target Client entry */
969 silc_client_get_client_by_id(client, conn, client_id);
970 if (!client_entry2) {
971 silc_client_notify_by_server_resolve(client, conn, packet,
972 SILC_ID_CLIENT, client_id);
977 chu = silc_client_on_channel(channel, client_entry2);
981 /* Notify application. The channel entry is sent last as this notify
982 is for channel but application don't know it from the arguments
984 client->internal->ops->notify(client, conn, type,
985 id_type, client_entry, mode,
986 client_entry2, channel);
989 case SILC_NOTIFY_TYPE_MOTD:
991 * Received Message of the day
994 SILC_LOG_DEBUG(("Notify: MOTD"));
997 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1001 /* Notify application */
1002 client->internal->ops->notify(client, conn, type, tmp);
1005 case SILC_NOTIFY_TYPE_CHANNEL_CHANGE:
1007 * Router has enforced a new ID to a channel. Let's change the old
1008 * ID to the one provided here.
1011 SILC_LOG_DEBUG(("Notify: CHANNEL_CHANGE"));
1013 /* Get the old ID */
1014 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1017 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1021 /* Get the channel entry */
1022 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1026 silc_free(channel_id);
1029 /* Get the new ID */
1030 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1033 channel_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1037 /* Replace the Channel ID */
1038 if (silc_client_replace_channel_id(client, conn, channel, channel_id))
1041 /* Notify application */
1042 client->internal->ops->notify(client, conn, type, channel, channel);
1045 case SILC_NOTIFY_TYPE_KICKED:
1047 * A client (maybe me) was kicked from a channel
1050 SILC_LOG_DEBUG(("Notify: KICKED"));
1053 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1057 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1061 /* Find Client entry */
1062 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1066 /* Get channel entry */
1067 channel_id = silc_id_str2id(packet->dst_id, packet->dst_id_len,
1071 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1075 /* From protocol version 1.1 we get the kicker's client ID as well */
1076 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1078 silc_free(client_id);
1079 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1083 /* Find kicker's client entry and if not found resolve it */
1084 client_entry2 = silc_client_get_client_by_id(client, conn, client_id);
1085 if (!client_entry2) {
1086 silc_client_notify_by_server_resolve(client, conn, packet,
1087 SILC_ID_CLIENT, client_id);
1090 if (client_entry2 != conn->local_entry)
1091 silc_client_nickname_format(client, conn, client_entry2);
1096 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1098 /* Notify application. The channel entry is sent last as this notify
1099 is for channel but application don't know it from the arguments
1101 client->internal->ops->notify(client, conn, type, client_entry, tmp,
1102 client_entry2, channel);
1104 /* Remove kicked client from channel */
1105 if (client_entry == conn->local_entry) {
1106 /* If I was kicked from channel, remove the channel */
1107 if (conn->current_channel == channel)
1108 conn->current_channel = NULL;
1109 silc_client_del_channel(client, conn, channel);
1111 chu = silc_client_on_channel(channel, client_entry);
1113 silc_hash_table_del(client_entry->channels, channel);
1114 silc_hash_table_del(channel->user_list, client_entry);
1118 if (!silc_hash_table_count(client_entry->channels)) {
1119 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1120 res->context = client;
1121 res->sock = silc_socket_dup(conn->sock);
1122 res->packet = silc_id_dup(client_entry->id, SILC_ID_CLIENT);
1123 silc_schedule_task_add(client->schedule, conn->sock->sock,
1124 silc_client_notify_check_client, res,
1125 (5 + (silc_rng_get_rn16(client->rng) % 529)),
1126 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
1131 case SILC_NOTIFY_TYPE_KILLED:
1134 * A client (maybe me) was killed from the network.
1137 SilcUInt32 comment_len;
1139 SILC_LOG_DEBUG(("Notify: KILLED"));
1142 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1146 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1150 /* Find Client entry */
1151 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1156 comment = silc_argument_get_arg_type(args, 2, &comment_len);
1158 /* From protocol version 1.1 we get killer's client ID as well */
1159 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1161 silc_free(client_id);
1163 id = silc_id_payload_parse_id(tmp, tmp_len, &id_type);
1167 /* Find Client entry */
1168 if (id_type == SILC_ID_CLIENT) {
1169 /* Find Client entry */
1171 client_entry2 = silc_client_get_client_by_id(client, conn,
1173 if (!client_entry) {
1174 silc_client_notify_by_server_resolve(client, conn, packet,
1175 SILC_ID_CLIENT, client_id);
1178 } else if (id_type == SILC_ID_SERVER) {
1179 /* Find Server entry */
1181 server = silc_client_get_server_by_id(client, conn, server_id);
1183 silc_client_notify_by_server_resolve(client, conn, packet,
1184 SILC_ID_SERVER, server_id);
1185 server = silc_client_add_server(client, conn, NULL, NULL,
1190 server->resolve_cmd_ident = conn->cmd_ident;
1195 if (server->resolve_cmd_ident) {
1196 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1197 res->packet = silc_packet_context_dup(packet);
1198 res->context = client;
1199 res->sock = silc_socket_dup(conn->sock);
1200 silc_client_command_pending(conn, SILC_COMMAND_NONE,
1201 server->resolve_cmd_ident,
1202 silc_client_notify_by_server_pending,
1207 /* Save the pointer to the client_entry pointer */
1208 client_entry2 = (SilcClientEntry)server;
1210 /* Find Channel entry */
1212 channel = silc_client_get_channel_by_id(client, conn, channel_id);
1214 silc_client_notify_by_server_resolve(client, conn, packet,
1215 SILC_ID_CHANNEL, channel_id);
1219 /* Save the pointer to the client_entry pointer */
1220 client_entry2 = (SilcClientEntry)channel;
1221 silc_free(channel_id);
1226 /* Notify application. */
1227 client->internal->ops->notify(client, conn, type, client_entry,
1228 comment, id_type, client_entry2);
1230 if (client_entry != conn->local_entry)
1231 /* Remove the client from all channels and free it */
1232 silc_client_del_client(client, conn, client_entry);
1236 case SILC_NOTIFY_TYPE_SERVER_SIGNOFF:
1239 * A server quit the SILC network and some clients must be removed
1240 * from channels as they quit as well.
1242 SilcClientEntry *clients = NULL;
1243 SilcUInt32 clients_count = 0;
1246 SILC_LOG_DEBUG(("Notify: SIGNOFF"));
1248 for (i = 1; i < silc_argument_get_arg_num(args); i++) {
1250 tmp = silc_argument_get_arg_type(args, i + 1, &tmp_len);
1252 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1256 /* Get the client entry */
1257 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1259 clients = silc_realloc(clients, sizeof(*clients) *
1260 (clients_count + 1));
1261 clients[clients_count] = client_entry;
1264 silc_free(client_id);
1269 /* Notify application. We don't keep server entries so the server
1270 entry is returned as NULL. The client's are returned as array
1271 of SilcClientEntry pointers. */
1272 client->internal->ops->notify(client, conn, type, NULL,
1273 clients, clients_count);
1275 for (i = 0; i < clients_count; i++) {
1276 /* Remove client from all channels */
1277 client_entry = clients[i];
1278 if (client_entry == conn->local_entry)
1281 /* Remove the client from all channels and free it */
1282 silc_client_del_client(client, conn, client_entry);
1289 case SILC_NOTIFY_TYPE_ERROR:
1292 * Some has occurred and server is notifying us about it.
1296 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1297 if (!tmp && tmp_len != 1)
1299 error = (SilcStatus)tmp[0];
1301 SILC_LOG_DEBUG(("Notify: ERROR (%d)", error));
1303 if (error == SILC_STATUS_ERR_NO_SUCH_CLIENT_ID) {
1304 tmp = silc_argument_get_arg_type(args, 2, &tmp_len);
1306 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1309 client_entry = silc_client_get_client_by_id(client, conn,
1312 silc_client_del_client(client, conn, client_entry);
1316 /* Notify application. */
1317 client->internal->ops->notify(client, conn, type, error);
1321 case SILC_NOTIFY_TYPE_WATCH:
1324 * Received notify about some client we are watching
1326 SilcNotifyType notify = 0;
1327 bool del_client = FALSE;
1329 SILC_LOG_DEBUG(("Notify: WATCH"));
1331 /* Get sender Client ID */
1332 tmp = silc_argument_get_arg_type(args, 1, &tmp_len);
1335 client_id = silc_id_payload_parse_id(tmp, tmp_len, NULL);
1339 /* Find Client entry and if not found query it */
1340 client_entry = silc_client_get_client_by_id(client, conn, client_id);
1341 if (!client_entry) {
1342 silc_client_notify_by_server_resolve(client, conn, packet,
1343 SILC_ID_CLIENT, client_id);
1348 tmp = silc_argument_get_arg_type(args, 3, &tmp_len);
1349 if (!tmp || tmp_len != 4)
1351 SILC_GET32_MSB(mode, tmp);
1353 /* Get notify type */
1354 tmp = silc_argument_get_arg_type(args, 4, &tmp_len);
1355 if (tmp && tmp_len != 2)
1358 SILC_GET16_MSB(notify, tmp);
1361 tmp = silc_argument_get_arg_type(args, 2, NULL);
1363 char *tmp_nick = NULL;
1365 if (client->internal->params->nickname_parse)
1366 client->internal->params->nickname_parse(client_entry->nickname,
1369 tmp_nick = strdup(tmp);
1371 /* If same nick, the client was new to us and has become "present"
1372 to network. Send NULL as nick to application. */
1373 if (tmp_nick && !strcmp(tmp, tmp_nick))
1376 silc_free(tmp_nick);
1379 /* Notify application. */
1380 client->internal->ops->notify(client, conn, type, client_entry,
1383 client_entry->mode = mode;
1385 /* If nickname was changed, remove the client entry unless the
1386 client is on some channel */
1387 if (tmp && notify == SILC_NOTIFY_TYPE_NICK_CHANGE &&
1388 !silc_hash_table_count(client_entry->channels))
1390 else if (notify == SILC_NOTIFY_TYPE_SIGNOFF ||
1391 notify == SILC_NOTIFY_TYPE_SERVER_SIGNOFF ||
1392 notify == SILC_NOTIFY_TYPE_KILLED)
1396 SilcClientNotifyResolve res = silc_calloc(1, sizeof(*res));
1397 res->context = client;
1398 res->sock = silc_socket_dup(conn->sock);
1399 res->packet = client_id;
1401 silc_schedule_task_add(client->schedule, conn->sock->sock,
1402 silc_client_notify_del_client_cb, res,
1403 1, 0, SILC_TASK_TIMEOUT, SILC_TASK_PRI_NORMAL);
1413 silc_notify_payload_free(payload);
1414 silc_free(client_id);
1415 silc_free(channel_id);
1416 silc_free(server_id);