2 * IRC - Internet Relay Chat, ircd/m_relay.c
3 * Written by David Herrmann.
14 #include "ircd_chattr.h"
15 #include "ircd_features.h"
16 #include "ircd_reply.h"
17 #include "ircd_string.h"
31 static void loc_handler_LR(const char *num, char *parv[], signed int parc) {
32 if(num[0] != '!') return;
34 auth_loc_reply(&num[3], NULL, NULL, NULL, 0);
36 auth_loc_reply(&num[3], NULL, NULL, &parv[0] , parc);
39 static void loc_handler_LA(const char *num, char *parv[], signed int parc) {
40 if(num[0] != '!' || parc < 1) return;
41 char *fakehost = NULL;
42 if (parc > 1 && parv[1] != "0")
46 auth_loc_reply(&num[3], parv[0], fakehost, &parv[2] , parc - 2);
48 auth_loc_reply(&num[3], parv[0], fakehost, NULL, 0);
50 auth_loc_reply(&num[3], parv[0], NULL, NULL, 0);
54 static void mode_a_join(struct Client* cptr, char *channel, int flags) {
55 struct Channel *chptr;
56 if (!(chptr = FindChannel(channel))) {
57 if (((channel[0] == '&') && !feature_bool(FEAT_LOCAL_CHANNELS)) || strlen(channel) > IRCD_MIN(CHANNELLEN, feature_int(FEAT_CHANNELLEN))) {
58 //we don't send an error message here - that would be very strange for the user, because they normaly don't know that mode +F is set
59 } else if ((chptr = get_channel(cptr, channel, CGT_CREATE))) {
60 struct JoinBuf create;
61 joinbuf_init(&create, cptr, cptr, JOINBUF_TYPE_CREATE, 0, TStime());
62 joinbuf_join(&create, chptr, CHFL_CHANOP | CHFL_CHANNEL_MANAGER);
63 do_names(cptr, chptr, NAMES_ALL|NAMES_EON);
64 joinbuf_flush(&create);
68 joinbuf_init(&join, cptr, cptr, JOINBUF_TYPE_JOIN, 0, 0);
69 joinbuf_join(&join, chptr, flags);
70 del_invite(cptr, chptr);
71 if (chptr->topic[0]) {
72 send_reply(cptr, RPL_TOPIC, chptr->chname, chptr->topic);
73 send_reply(cptr, RPL_TOPICWHOTIME, chptr->chname, chptr->topic_nick, chptr->topic_time);
75 do_names(cptr, chptr, NAMES_ALL|NAMES_EON); /* send /names list */
80 static void mode_a_check_altchan(struct Client* sptr, char *channel) {
81 static Channel *chptrb;
82 if (!(chptrb = FindChannel(channel))) {
83 if (((channel[0] == '&') && !feature_bool(FEAT_LOCAL_CHANNELS)) || strlen(altchan) > IRCD_MIN(CHANNELLEN, feature_int(FEAT_CHANNELLEN))) {
84 //we don't send an error message here - that would be very strange for the user, because they normaly don't know that mode +F is set
85 } else if ((chptrb = get_channel(sptr, altchan, CGT_CREATE))) {
86 joinbuf_join(&create, chptrb, CHFL_CHANOP | CHFL_CHANNEL_MANAGER);
87 do_names(sptr, chptrb, NAMES_ALL|NAMES_EON);
90 //first of all check if we may even join this channel
92 if (chptrb->users == 0 && !chptrb->mode.apass[0] && !(chptrb->mode.mode & MODE_PERSIST)) {
93 /* Joining a zombie channel (zannel): give ops and increment TS. */
95 chptrb->creationtime++;
96 } else if (IsInvited(sptr, chptrb)) {
97 /* Invites and key=OVERRIDE bypass these other checks. */
98 } else if (chptrb->mode.mode & MODE_INVITEONLY)
99 err2 = ERR_INVITEONLYCHAN;
100 else if (chptrb->mode.limit && (chptrb->users >= chptrb->mode.limit))
101 err2 = ERR_CHANNELISFULL;
102 else if ((chptrb->mode.mode & MODE_REGONLY) && !IsAccount(sptr))
103 err2 = ERR_NEEDREGGEDNICK;
104 else if (find_ban(sptr, chptrb->banlist))
105 err2 = ERR_BANNEDFROMCHAN;
106 else if (*chptrb->mode.key && (!key || strcmp(key, chptrb->mode.key)))
107 err2 = ERR_BADCHANNELKEY;
109 joinbuf_join(&join, chptrb, flags);
110 del_invite(sptr, chptrb);
111 if (chptrb->topic[0]) {
112 send_reply(sptr, RPL_TOPIC, chptrb->chname, chptrb->topic);
113 send_reply(sptr, RPL_TOPICWHOTIME, chptrb->chname, chptrb->topic_nick, chptrb->topic_time);
115 do_names(sptr, chptrb, NAMES_ALL|NAMES_EON); /* send /names list */
121 * The RELAY command has a special purpose. It is always built the following way:
122 * <sender> RELAY <destination> <command>[ <list of parameters>]
123 * The <sender> is a single numeric nick of a server or user. <destination> can be:
124 * - a numeric-nick of a server (2 characters long): eg., AD
125 * - a numeric-nick of a user (5 characters long): eg., ADAAB
126 * - a numeric-nick of an unregistered user (6 characters long): eg., !ADAAB
127 * <command> is a subcommdn of RELAY.
129 * If we receive such a message, we relay the message to the server of <destination>.
130 * If we are the target, we check <command> and call the related subcommand handler.
132 * Therefore, this interface can be used to relay messages through the network without
133 * specifying new commands.
135 /* ms_relay - server message handler
137 * parv[0] = sender prefix
139 * parv[2] = subcommand
140 * parv[3-X] = NULL or a list of parameters.
142 signed int ms_relay(struct Client* cptr, struct Client* sptr, signed int parc, char* parv[]) {
143 struct Client *server;
145 char buf[3], *act, *m, buffer[513];
148 return protocol_violation(cptr, "Too few arguments for RELAY");
151 /* Check <destination>. */
152 len = strlen(parv[1]);
156 server = FindNServer(parv[1]);
161 server = FindNServer(buf);
166 server = FindNServer(buf);
169 /* Invalid destination. Ignore. */
173 if(!server) return 0;
177 for(i = 3; i < (parc - 1); ++i) {
179 while((*act++ = *m++)) /* empty loop */ ;
184 while((*act++ = *m++)) /* empty loop */ ;
185 sendcmdto_one(sptr, CMD_RELAY, server, "%s %s %s", parv[1], parv[2], buffer);
187 else sendcmdto_one(sptr, CMD_RELAY, server, "%s %s", parv[1], parv[2]);
191 /* Call subcommand handler. */
192 if(strcmp("LR", parv[2]) == 0) loc_handler_LR(parv[1], &parv[3], parc - 3);
193 else if(strcmp("LA", parv[2]) == 0 && parc > 3) loc_handler_LA(parv[1], &parv[3], parc - 3);
194 else if(strcmp("SM", parv[2]) == 0 && parc > 3) {
195 #ifndef UNRESTRICTED_SERV
196 struct Client *acptr;
197 if(acptr = findNUser(parv[3])) {
198 if (IsChannelPrefix(*parv[4])) {
199 relay_channel_message(acptr, parv[4], parv[parc - 1], 1);
201 relay_private_message(acptr, parv[4], parv[parc - 1]);
205 } else if(strcmp("UC", parv[2]) == 0 && parc > 3) {
206 struct Client *acptr;
207 if(acptr = findNUser(parv[3])) {
208 send_reply(acptr, ERR_UNKNOWNCOMMAND, parv[4]);
210 } else if(strcmp("SI", parv[2]) == 0 && parc > 3) {
211 #ifndef UNRESTRICTED_SERV
212 struct Client *acptr;
213 if(acptr = findNUser(parv[3])) {
214 parse_simul_client(acptr, parv[parc - 1]);
217 } else if(strcmp("JAA", parv[2]) == 0 && parc > 2) {
218 struct Client *acptr;
219 if(acptr = findNUser(parv[1])) {
220 mode_a_join(acptr,parv[3],strtoul(parv[4], 0, 10));
222 } else if(strcmp("JAR", parv[2]) == 0 && parc > 2) {
223 struct Client *acptr;
224 struct Channel *chptr;
225 if(acptr = findNUser(parv[1])) {
226 if(chptr = FindChannel(parv[3]) && chptr->mode.altchan && IsChannelName(chptr->mode.altchan) && strIsIrcCh(chptr->mode.altchan)) {
227 mode_a_check_altchan(acptr,chptr->mode.altchan);
229 send_reply(acptr, ERR_JOINACCESS, parv[3]);