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https://github.com/inspircd/inspircd.git
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696ee9ff66
git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@5998 e03df62e-2008-0410-955e-edbf42e46eb7
362 lines
8.8 KiB
C++
362 lines
8.8 KiB
C++
/* +------------------------------------+
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* | Inspire Internet Relay Chat Daemon |
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* +------------------------------------+
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*
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* InspIRCd: (C) 2002-2007 InspIRCd Development Team
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* See: http://www.inspircd.org/wiki/index.php/Credits
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*
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* This program is free but copyrighted software; see
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* the file COPYING for details.
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*
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* ---------------------------------------------------
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*/
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#ifndef INSPIRCD_LISTMODE_PROVIDER
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#define INSPIRCD_LISTMODE_PROVIDER
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#include <stdio.h>
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#include <string>
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#include <sstream>
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#include <vector>
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#include "users.h"
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#include "channels.h"
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#include "modules.h"
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#include "wildcard.h"
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#include "inspircd.h"
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/* $ModDesc: Provides support for easily creating listmodes, stores the time set, the user, and a parameter. */
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/* Updated to use the <banlist> config tag if it exists */
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/* Written by Om <omster@gmail.com>, December 2005. */
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/* Based on code previously written by Om - April 2005 */
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/* Updated to new API July 8th 2006 by Brain */
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/* Originally based on m_chanprotect and m_silence */
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inline std::string stringtime()
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{
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std::ostringstream TIME;
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TIME << time(NULL);
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return TIME.str();
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}
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/** An item in a listmode's list
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*/
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class ListItem : public classbase
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{
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public:
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std::string nick;
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std::string mask;
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std::string time;
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};
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/** The number of items a listmode's list may contain
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*/
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class ListLimit : public classbase
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{
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public:
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std::string mask;
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unsigned int limit;
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};
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// Just defining the type we use for the exception list here...
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typedef std::vector<ListItem> modelist;
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typedef std::vector<ListLimit> limitlist;
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/** The base class for listmodes defined by u_listmode.h
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*/
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class ListModeBase : public ModeHandler
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{
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protected:
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std::string infokey;
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std::string listnumeric;
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std::string endoflistnumeric;
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std::string endofliststring;
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bool tidy;
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std::string configtag;
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limitlist chanlimits;
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public:
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ListModeBase(InspIRCd* Instance, char modechar, const std::string &eolstr, const std::string &lnum, const std::string &eolnum, bool autotidy, const std::string &ctag = "banlist")
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: ModeHandler(Instance, modechar, 1, 1, true, MODETYPE_CHANNEL, false), listnumeric(lnum), endoflistnumeric(eolnum), endofliststring(eolstr), tidy(autotidy), configtag(ctag)
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{
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this->DoRehash();
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infokey = "listbase_mode_" + std::string(1, mode) + "_list";
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}
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std::pair<bool,std::string> ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter)
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{
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modelist* el;
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channel->GetExt(infokey, el);
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if (el)
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{
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for (modelist::iterator it = el->begin(); it != el->end(); it++)
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{
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if(parameter == it->mask)
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{
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return std::make_pair(true, parameter);
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}
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}
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}
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return std::make_pair(false, parameter);
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}
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virtual void DisplayList(userrec* user, chanrec* channel)
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{
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modelist* el;
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channel->GetExt(infokey, el);
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if (el)
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{
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for(modelist::iterator it = el->begin(); it != el->end(); it++)
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{
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user->WriteServ("%s %s %s %s %s %s", listnumeric.c_str(), user->nick, channel->name, it->mask.c_str(), it->nick.c_str(), it->time.c_str());
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}
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}
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user->WriteServ("%s %s %s %s", endoflistnumeric.c_str(), user->nick, channel->name, endofliststring.c_str());
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}
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virtual void RemoveMode(chanrec* channel)
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{
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ServerInstance->Log(DEBUG,"Removing listmode base from %s %s",channel->name,infokey.c_str());
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modelist* el;
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channel->GetExt(infokey, el);
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if (el)
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{
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ServerInstance->Log(DEBUG,"Channel is extended with a list");
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irc::modestacker modestack(false);
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std::deque<std::string> stackresult;
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const char* mode_junk[MAXMODES+1];
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mode_junk[0] = channel->name;
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userrec* n = new userrec(ServerInstance);
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n->SetFd(FD_MAGIC_NUMBER);
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for(modelist::iterator it = el->begin(); it != el->end(); it++)
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{
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modestack.Push(this->GetModeChar(), it->mask);
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}
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while (modestack.GetStackedLine(stackresult))
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{
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for (size_t j = 0; j < stackresult.size(); j++)
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{
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mode_junk[j+1] = stackresult[j].c_str();
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}
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ServerInstance->SendMode(mode_junk, stackresult.size() + 1, n);
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}
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delete n;
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}
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}
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virtual void RemoveMode(userrec* user)
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{
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/* Listmodes dont get set on users */
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}
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virtual void DoRehash()
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{
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ConfigReader Conf(ServerInstance);
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chanlimits.clear();
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for(int i = 0; i < Conf.Enumerate(configtag); i++)
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{
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// For each <banlist> tag
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ListLimit limit;
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limit.mask = Conf.ReadValue(configtag, "chan", i);
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limit.limit = Conf.ReadInteger(configtag, "limit", i, true);
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if(limit.mask.size() && limit.limit > 0)
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chanlimits.push_back(limit);
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}
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if(chanlimits.size() == 0)
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{
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ListLimit limit;
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limit.mask = "*";
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limit.limit = 64;
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chanlimits.push_back(limit);
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}
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}
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virtual void DoImplements(char* List)
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{
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List[I_OnChannelDelete] = List[I_OnSyncChannel] = List[I_OnCleanup] = List[I_OnRehash] = 1;
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}
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virtual ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)
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{
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// Try and grab the list
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modelist* el;
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channel->GetExt(infokey, el);
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if (adding)
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{
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// If there was no list
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if (!el)
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{
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// Make one
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el = new modelist;
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channel->Extend(infokey, el);
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}
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// Clean the mask up
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if (this->tidy)
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ModeParser::CleanMask(parameter);
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// Check if the item already exists in the list
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for (modelist::iterator it = el->begin(); it != el->end(); it++)
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{
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if(parameter == it->mask)
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{
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/* Give a subclass a chance to error about this */
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TellAlreadyOnList(source, channel, parameter);
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// it does, deny the change
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return MODEACTION_DENY;
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}
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}
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unsigned int maxsize = 0;
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for (limitlist::iterator it = chanlimits.begin(); it != chanlimits.end(); it++)
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{
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if (match(channel->name, it->mask.c_str()))
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{
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// We have a pattern matching the channel...
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maxsize = el->size();
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if (maxsize < it->limit)
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{
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/* Ok, it *could* be allowed, now give someone subclassing us
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* a chance to validate the parameter.
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* The param is passed by reference, so they can both modify it
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* and tell us if we allow it or not.
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*
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* eg, the subclass could:
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* 1) allow
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* 2) 'fix' parameter and then allow
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* 3) deny
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*/
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if(ValidateParam(source, channel, parameter))
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{
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// And now add the mask onto the list...
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ListItem e;
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e.mask = parameter;
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e.nick = source->nick;
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e.time = stringtime();
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el->push_back(e);
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return MODEACTION_ALLOW;
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}
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else
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{
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/* If they deny it they have the job of giving an error message */
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return MODEACTION_DENY;
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}
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}
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}
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}
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/* List is full, give subclass a chance to send a custom message */
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if(!TellListTooLong(source, channel, parameter))
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{
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source->WriteServ("478 %s %s %s :Channel ban/ignore list is full", source->nick, channel->name, parameter.c_str());
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}
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parameter = "";
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return MODEACTION_DENY;
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}
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else
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{
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// We're taking the mode off
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if (el)
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{
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for (modelist::iterator it = el->begin(); it != el->end(); it++)
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{
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if(parameter == it->mask)
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{
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el->erase(it);
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if(el->size() == 0)
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{
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channel->Shrink(infokey);
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delete el;
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}
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return MODEACTION_ALLOW;
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}
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}
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/* Tried to remove something that wasn't set */
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TellNotSet(source, channel, parameter);
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parameter = "";
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return MODEACTION_DENY;
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}
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else
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{
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/* Hmm, taking an exception off a non-existant list, DIE */
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TellNotSet(source, channel, parameter);
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parameter = "";
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return MODEACTION_DENY;
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}
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}
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return MODEACTION_DENY;
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}
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virtual std::string& GetInfoKey()
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{
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return infokey;
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}
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virtual void DoChannelDelete(chanrec* chan)
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{
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modelist* list;
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chan->GetExt(infokey, list);
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if (list)
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{
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chan->Shrink(infokey);
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delete list;
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}
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}
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virtual void DoSyncChannel(chanrec* chan, Module* proto, void* opaque)
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{
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modelist* list;
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chan->GetExt(infokey, list);
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irc::modestacker modestack(true);
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std::deque<std::string> stackresult;
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if (list)
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{
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for (modelist::iterator it = list->begin(); it != list->end(); it++)
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{
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modestack.Push(std::string(1, mode)[0], it->mask);
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}
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}
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while (modestack.GetStackedLine(stackresult))
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{
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irc::stringjoiner mode_join(" ", stackresult, 0, stackresult.size() - 1);
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std::string line = mode_join.GetJoined();
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proto->ProtoSendMode(opaque, TYPE_CHANNEL, chan, line);
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}
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}
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virtual void DoCleanup(int target_type, void* item)
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{
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}
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virtual bool ValidateParam(userrec* source, chanrec* channel, std::string ¶meter)
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{
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return true;
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}
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virtual bool TellListTooLong(userrec* source, chanrec* channel, std::string ¶meter)
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{
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return false;
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}
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virtual void TellAlreadyOnList(userrec* source, chanrec* channel, std::string ¶meter)
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{
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}
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virtual void TellNotSet(userrec* source, chanrec* channel, std::string ¶meter)
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{
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}
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};
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#endif
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