mirror of
https://github.com/matrix-construct/construct
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* To benefit from the precompiled-header (PCH) it MUST provide "the first C token." Advantages: Never worry about the include stack again. Remember, this means one less thing for random module developers, community people learning C++, and new developers to deal with. It should reduce the learning curve and barrier for participation. Disadvantages: Makes overall compilation a bit slower, especially without any additional work to improve it again. There are several opportunities, places where the PCH is probably being ignored, etc that can be addressed.
150 lines
4.2 KiB
C++
150 lines
4.2 KiB
C++
/* modules/m_alias.c - main module for aliases
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* Copyright (c) 2016 Elizabeth Myers <elizabeth@interlinked.me>
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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using namespace ircd;
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static const char alias_desc[] = "Provides the system for services aliases";
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static int _modinit(void);
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static void _moddeinit(void);
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static int reload_aliases(hook_data *);
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static void m_alias(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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mapi_hfn_list_av1 alias_hfnlist[] = {
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{ "rehash", (hookfn)reload_aliases },
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{ NULL, NULL },
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};
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DECLARE_MODULE_AV2(alias, _modinit, _moddeinit, NULL, NULL, alias_hfnlist, NULL, NULL, alias_desc);
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static rb_dlink_list alias_messages;
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static const struct MessageEntry alias_msgtab[] =
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{{m_alias, 2}, {m_alias, 2}, mg_ignore, mg_ignore, mg_ignore, {m_alias, 2}};
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static inline void
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create_aliases(void)
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{
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s_assert(rb_dlink_list_length(&alias_messages) == 0);
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for (auto it = alias_dict.begin(); it != alias_dict.end(); it++)
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{
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std::shared_ptr<alias_entry> alias = it->second;
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struct Message *message = (Message *)rb_malloc(sizeof(*message) + alias->name.size() + 1);
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char *cmd = (char*)message + sizeof(*message);
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/* copy the alias name as it will be freed early on a rehash */
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strcpy(cmd, alias->name.c_str());
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message->cmd = cmd;
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memcpy(message->handlers, alias_msgtab, sizeof(alias_msgtab));
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mod_add_cmd(message);
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rb_dlinkAddAlloc(message, &alias_messages);
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}
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}
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static inline void
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destroy_aliases(void)
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{
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rb_dlink_node *ptr, *nptr;
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RB_DLINK_FOREACH_SAFE(ptr, nptr, alias_messages.head)
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{
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mod_del_cmd((struct Message *)ptr->data);
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rb_free(ptr->data);
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rb_dlinkDestroy(ptr, &alias_messages);
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}
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}
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static int
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_modinit(void)
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{
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create_aliases();
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return 0;
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}
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static void
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_moddeinit(void)
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{
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destroy_aliases();
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}
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static int
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reload_aliases(hook_data *data)
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{
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destroy_aliases(); /* Clear old aliases */
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create_aliases();
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return 0;
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}
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/* The below was mostly taken from the old do_alias */
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static void
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m_alias(struct MsgBuf *msgbuf, struct Client *client_p, struct Client *source_p, int parc, const char **parv)
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{
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struct Client *target_p;
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std::shared_ptr<alias_entry> aptr = alias_dict[msgbuf->cmd];
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char *str;
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if(aptr == NULL)
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{
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/* This shouldn't happen... */
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if(IsPerson(client_p))
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sendto_one(client_p, form_str(ERR_UNKNOWNCOMMAND),
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me.name, client_p->name, msgbuf->cmd);
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return;
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}
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if(!IsFloodDone(client_p) && client_p->localClient->receiveM > 20)
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flood_endgrace(client_p);
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auto pos = aptr->target.find('@');
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if(pos != std::string::npos)
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{
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/* user@server */
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target_p = find_server(NULL, aptr->target.substr(pos + 1).c_str());
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if(target_p != NULL && IsMe(target_p))
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target_p = NULL;
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}
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else
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{
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/* nick, must be +S */
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target_p = find_named_person(aptr->target.c_str());
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if(target_p != NULL && !IsService(target_p))
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target_p = NULL;
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}
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if(target_p == NULL)
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{
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sendto_one_numeric(client_p, ERR_SERVICESDOWN, form_str(ERR_SERVICESDOWN), aptr->target.c_str());
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return;
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}
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str = reconstruct_parv(parc - 1, &parv[1]);
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if(EmptyString(str))
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{
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sendto_one(client_p, form_str(ERR_NOTEXTTOSEND), me.name, target_p->name);
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return;
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}
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sendto_one(target_p, ":%s PRIVMSG %s :%s",
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get_id(client_p, target_p),
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pos != std::string::npos ? aptr->target.c_str() : get_id(target_p, target_p),
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str);
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}
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