mirror of
https://github.com/matrix-construct/construct
synced 2024-08-24 18:42:16 +02:00
160 lines
4.7 KiB
C++
160 lines
4.7 KiB
C++
/*
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* Copyright (C) 2016 Charybdis Development Team
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* Copyright (C) 2016 Jason Volk <jason@zemos.net>
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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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namespace ircd {
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namespace cmds {
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std::map<std::string, cmd *, case_insensitive_less> cmds;
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} // namespace cmds
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} // namespace ircd
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using namespace ircd;
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cmds::cmd::cmd(const std::string &name,
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const decltype(handler) &handler)
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:name{name}
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,handler{handler}
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{
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emplace();
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}
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cmds::cmd::~cmd()
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noexcept
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{
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cmds.erase(name);
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log::info("Removed command \"%s\" by handler @ %p", name.c_str(), this);
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}
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void
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cmds::cmd::operator()(client &client,
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line line)
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{
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handler(client, std::move(line));
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}
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void
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cmds::cmd::emplace()
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{
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const auto iit(cmds.emplace(name, this));
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if(!iit.second)
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throw already_exists("Command name \"%s\" already registered", name.c_str());
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log::info("Registered command \"%s\" to handler @ %p", name.c_str(), this);
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}
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cmds::cmd &
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cmds::find(const std::string &name)
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try
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{
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return *cmds.at(name);
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}
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catch(const std::out_of_range &e)
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{
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throw not_found("%s", name.c_str());
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}
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cmds::cmd *
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cmds::find(const std::string &name,
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const std::nothrow_t &)
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{
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const auto it(cmds.find(name));
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return it != end(cmds)? it->second : nullptr;
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}
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bool
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cmds::exists(const std::string &name)
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{
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return cmds.count(name);
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}
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//
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// Museum of historical comments
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//
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// parse.c (1990 - 2016)
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//
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/* ok, fake prefix happens naturally during a burst on a nick
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* collision with TS5, we cant kill them because one client has to
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* survive, so we just send an error.
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*/
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/* meepfoo is a nickname (ignore)
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* #XXXXXXXX is a UID (KILL)
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* #XX is a SID (SQUIT)
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* meep.foo is a server (SQUIT)
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*/
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/*
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* *WARNING*
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* Numerics are mostly error reports. If there is something
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* wrong with the message, just *DROP* it! Don't even think of
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* sending back a neat error message -- big danger of creating
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* a ping pong error message...
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*/
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/*
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* Prepare the parameter portion of the message into 'buffer'.
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* (Because the buffer is twice as large as the message buffer
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* for the socket, no overflow can occur here... ...on current
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* assumptions--bets are off, if these are changed --msa)
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* Note: if buffer is non-empty, it will begin with SPACE.
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*/
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/*
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* We shouldn't get numerics sent to us,
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* any numerics we do get indicate a bug somewhere..
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*/
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/* ugh. this is here because of nick collisions. when two servers
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* relink, they burst each other their nicks, then perform collides.
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* if there is a nick collision, BOTH servers will kill their own
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* nicks, and BOTH will kill the other servers nick, which wont exist,
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* because it will have been already killed by the local server.
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*
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* unfortunately, as we cant guarantee other servers will do the
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* "right thing" on a nick collision, we have to keep both kills.
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* ergo we need to ignore ERR_NOSUCHNICK. --fl_
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*/
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/* quick comment. This _was_ tried. i.e. assume the other servers
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* will do the "right thing" and kill a nick that is colliding.
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* unfortunately, it did not work. --Dianora
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*/
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/* note, now we send PING on server connect, we can
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* also get ERR_NOSUCHSERVER..
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*/
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/* This message changed direction (nick collision?)
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* ignore it.
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*/
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/* csircd will send out unknown umode flag for +a (admin), drop it here. */
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/* Fake it for server hiding, if its our client */
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/* bit of a hack.
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* I don't =really= want to waste a bit in a flag
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* number_of_nick_changes is only really valid after the client
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* is fully registered..
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*/
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