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https://github.com/matrix-construct/construct
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* Simplifies the export declarations for module developers. While MAPI III utilized a flexible key-value vector to eliminate positional arguments in a header initializer, now the developer simply makes a list of pointers to what they want to export for injection into IRCd. Example: mapi::header IRCD_MODULE { "mymod", "My module adds a command, a hook, and a CLICAP", &my_cmdtab, &some_hook, &clicaptab }; * Distributes the handlers for items passed to the above vector. Anyone can add a type-handler to the module system from anywhere in IRCd (and other modules?) When your type is encountered a handler is called providing the symbol name to read out of the module. Example in parser.cc: mods::add_loader<Message>([] (mod &loading, const std::string &symbol) { auto &msg(get<Message>(loading, symbol)); add_command(msg.name, msg); });
205 lines
5.7 KiB
C++
205 lines
5.7 KiB
C++
/*
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* ircd-ratbox: A slightly useful ircd.
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* m_part.c: Parts a user from a channel.
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*
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* Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
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* Copyright (C) 1996-2002 Hybrid Development Team
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* Copyright (C) 2002-2005 ircd-ratbox development team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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using namespace ircd;
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static const char part_desc[] = "Provides the PART command to leave a channel";
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static void m_part(struct MsgBuf *, client::client &, client::client &, int, const char **);
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struct Message part_msgtab = {
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"PART", 0, 0, 0, 0,
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{mg_unreg, {m_part, 2}, {m_part, 2}, mg_ignore, mg_ignore, {m_part, 2}}
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};
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mapi_clist_av1 part_clist[] = { &part_msgtab, NULL };
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DECLARE_MODULE_AV2(part, NULL, NULL, part_clist, NULL, NULL, NULL, NULL, part_desc);
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static void part_one_client(client::client &client,
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client::client &source, char *name,
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const char *reason);
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static bool can_send_part(client::client &source, chan::chan *chptr, chan::membership *msptr);
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static bool do_message_hook(client::client &source, chan::chan *chptr, const char **reason);
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/*
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** m_part
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** parv[1] = channel
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** parv[2] = reason
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*/
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static void
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m_part(struct MsgBuf *msgbuf_p, client::client &client, client::client &source, int parc, const char *parv[])
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{
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char *p, *name;
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char reason[REASONLEN + 1];
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char *s = LOCAL_COPY(parv[1]);
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reason[0] = '\0';
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if(parc > 2)
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rb_strlcpy(reason, parv[2], sizeof(reason));
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name = rb_strtok_r(s, ",", &p);
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/* Finish the flood grace period... */
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if(my(source) && !is_flood_done(source))
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flood_endgrace(&source);
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while(name)
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{
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part_one_client(client, source, name, reason);
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name = rb_strtok_r(NULL, ",", &p);
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}
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}
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/*
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* part_one_client
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*
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* inputs - pointer to server
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* - pointer to source client to remove
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* - char pointer of name of channel to remove from
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* output - none
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* side effects - remove ONE client given the channel name
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*/
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static void
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part_one_client(client::client &client, client::client &source, char *name, const char *reason)
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{
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chan::chan *chptr;
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chan::membership *msptr;
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if((chptr = chan::get(name, std::nothrow)) == NULL)
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{
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sendto_one_numeric(&source, ERR_NOSUCHCHANNEL, form_str(ERR_NOSUCHCHANNEL), name);
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return;
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}
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msptr = get(chptr->members, source, std::nothrow);
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if(msptr == NULL)
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{
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sendto_one_numeric(&source, ERR_NOTONCHANNEL, form_str(ERR_NOTONCHANNEL), name);
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return;
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}
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if(my_connect(source) && !is(source, umode::OPER) && !is_exempt_spambot(source))
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chan::check_spambot_warning(&source, NULL);
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/*
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* Remove user from the old channel (if any)
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* only allow /part reasons in -m chans
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*/
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if(!EmptyString(reason) &&
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(!my_connect(source) ||
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(can_send_part(source, chptr, msptr) && do_message_hook(source, chptr, &reason))
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)
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)
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{
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sendto_server(&client, chptr, CAP_TS6, NOCAPS,
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":%s PART %s :%s",
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use_id(&source),
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chptr->name.c_str(),
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reason);
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sendto_channel_local(chan::ALL_MEMBERS, chptr,
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":%s!%s@%s PART %s :%s",
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source.name,
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source.username,
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source.host,
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chptr->name.c_str(),
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reason);
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}
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else
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{
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sendto_server(&client, chptr, CAP_TS6, NOCAPS,
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":%s PART %s",
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use_id(&source),
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chptr->name.c_str());
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sendto_channel_local(chan::ALL_MEMBERS, chptr,
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":%s!%s@%s PART %s",
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source.name,
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source.username,
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source.host,
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chptr->name.c_str());
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}
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del(*chptr, source);
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}
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/*
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* can_send_part - whether a part message can be sent.
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*
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* inputs:
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* - client parting
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* - channel being parted
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* - membership pointer
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* outputs:
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* - true if message allowed
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* - false if message denied
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* side effects:
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* - none.
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*/
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static bool
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can_send_part(client::client &source, chan::chan *chptr, chan::membership *msptr)
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{
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if (!can_send(chptr, &source, msptr))
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return false;
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/* Allow chanops to bypass anti_spam_exit_message_time for part messages. */
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if (is_chanop(msptr))
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return true;
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return (source.localClient->firsttime + ConfigFileEntry.anti_spam_exit_message_time) < rb_current_time();
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}
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/*
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* do_message_hook - execute the message hook on a part message reason.
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*
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* inputs:
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* - client parting
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* - channel being parted
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* - pointer to reason
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* outputs:
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* - true if message is allowed
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* - false if message is denied or message is now empty
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* side effects:
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* - reason may be modified.
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*/
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static bool
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do_message_hook(client::client &source, chan::chan *chptr, const char **reason)
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{
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hook_data_privmsg_channel hdata;
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hdata.msgtype = MESSAGE_TYPE_PART;
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hdata.source_p = &source;
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hdata.chptr = chptr;
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hdata.text = *reason;
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hdata.approved = 0;
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call_hook(h_privmsg_channel, &hdata);
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/* The reason may have been changed by a hook... */
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*reason = hdata.text;
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return (hdata.approved == 0 && !EmptyString(*reason));
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}
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