-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2007, 2009 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
+ * Copyright (C) 2004-2008 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2006 Oliver Lupton <oliverlupton@gmail.com>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
*
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
-/* $Core */
#include "inspircd.h"
#include "inspstring.h"
#include "modes/cmode_l.h"
/* +o (channel op) */
#include "modes/cmode_o.h"
-/* +h (channel halfop) */
-#include "modes/cmode_h.h"
/* +v (channel voice) */
#include "modes/cmode_v.h"
/* +w (see wallops) */
/* +s (server notice masks) */
#include "modes/umode_s.h"
-ModeHandler::ModeHandler(InspIRCd* Instance, Module* Creator, char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly, char mprefix, char prefixrequired, TranslateType translate)
- : ServerInstance(Instance), mode(modeletter), n_params_on(parameters_on), n_params_off(parameters_off), list(listmode), m_type(type), m_paramtype(translate), oper(operonly), prefix(mprefix), count(0), prefixneeded(prefixrequired), creator(Creator)
+ModeHandler::ModeHandler(Module* Creator, const std::string& Name, char modeletter, ParamSpec Params, ModeType type)
+ : ServiceProvider(Creator, Name, SERVICE_MODE), m_paramtype(TR_TEXT),
+ parameters_taken(Params), mode(modeletter), prefix(0), oper(false),
+ list(false), m_type(type), levelrequired(HALFOP_VALUE)
{
}
-ModeHandler::~ModeHandler()
+CullResult ModeHandler::cull()
{
+ if (ServerInstance->Modes)
+ ServerInstance->Modes->DelMode(this);
+ return classbase::cull();
}
-bool ModeHandler::IsListMode()
-{
- return list;
-}
-
-char ModeHandler::GetNeededPrefix()
+ModeHandler::~ModeHandler()
{
- if (prefixneeded == '%' && !ServerInstance->Config->AllowHalfop)
- return '@';
- return prefixneeded;
}
-void ModeHandler::SetNeededPrefix(char needsprefix)
+bool ModeHandler::IsListMode()
{
- prefixneeded = needsprefix;
+ return list;
}
unsigned int ModeHandler::GetPrefixRank()
return 0;
}
-unsigned int ModeHandler::GetCount()
-{
- return 0;
-}
-
-void ModeHandler::ChangeCount(int modifier)
-{
- count += modifier;
- ServerInstance->Logs->Log("MODE", DEBUG,"Change count for mode %c is now %d", mode, count);
-}
-
-ModeType ModeHandler::GetModeType()
-{
- return m_type;
-}
-
-TranslateType ModeHandler::GetTranslateType()
-{
- return m_paramtype;
-}
-
-bool ModeHandler::NeedsOper()
-{
- return oper;
-}
-
-char ModeHandler::GetPrefix()
-{
- return prefix;
-}
-
int ModeHandler::GetNumParams(bool adding)
{
- return adding ? n_params_on : n_params_off;
-}
-
-char ModeHandler::GetModeChar()
-{
- return mode;
+ switch (parameters_taken)
+ {
+ case PARAM_ALWAYS:
+ return 1;
+ case PARAM_SETONLY:
+ return adding ? 1 : 0;
+ case PARAM_NONE:
+ break;
+ }
+ return 0;
}
std::string ModeHandler::GetUserParameter(User* user)
return "";
}
-ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool)
+ModResult ModeHandler::AccessCheck(User*, Channel*, std::string &, bool)
{
- return MODEACTION_DENY;
+ return MOD_RES_PASSTHRU;
}
-ModePair ModeHandler::ModeSet(User*, User* dest, Channel* channel, const std::string&)
+ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool)
{
- if (dest)
- {
- return std::make_pair(dest->IsModeSet(this->mode), "");
- }
- else
- {
- return std::make_pair(channel->IsModeSet(this->mode), "");
- }
+ return MODEACTION_DENY;
}
void ModeHandler::DisplayList(User*, Channel*)
{
}
-bool ModeHandler::CheckTimeStamp(std::string& theirs, const std::string& ours, Channel*)
+bool ModeHandler::ResolveModeConflict(std::string& theirs, const std::string& ours, Channel*)
{
return (theirs < ours);
}
return MODEACTION_DENY;
}
-ModeWatcher::ModeWatcher(InspIRCd* Instance, char modeletter, ModeType type) : ServerInstance(Instance), mode(modeletter), m_type(type)
+ModeAction ParamChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
+{
+ if (adding && !ParamValidate(parameter))
+ return MODEACTION_DENY;
+ std::string now = channel->GetModeParameter(this);
+ if (parameter == now)
+ return MODEACTION_DENY;
+ if (adding)
+ channel->SetModeParam(this, parameter);
+ else
+ channel->SetModeParam(this, "");
+ return MODEACTION_ALLOW;
+}
+
+bool ParamChannelModeHandler::ParamValidate(std::string& parameter)
+{
+ return true;
+}
+
+ModeWatcher::ModeWatcher(Module* Creator, char modeletter, ModeType type)
+ : mode(modeletter), m_type(type), creator(Creator)
{
}
ModeHandler *mh = FindMode(modechar, type);
int pcnt = mh->GetNumParams(adding);
+ // crop mode parameter size to 250 characters
+ if (parameter.length() > 250 && adding)
+ parameter = parameter.substr(0, 250);
+
ModResult MOD_RESULT;
- FIRST_MOD_RESULT(ServerInstance, OnRawMode, MOD_RESULT, (user, chan, modechar, parameter, adding, pcnt));
+ FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, modechar, parameter, adding, pcnt));
if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY))
return MODEACTION_DENY;
if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW))
{
- char needed = mh->GetNeededPrefix();
- ModeHandler* prefixmode = FindPrefix(needed);
+ MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding);
- /* If the mode defined by the handler is not '\0', but the handler for it
- * cannot be found, they probably dont have the right module loaded to implement
- * the prefix they want to compare the mode against, e.g. '&' for m_chanprotect.
- * Revert to checking against the minimum core prefix, '%'.
- */
- if (needed && !prefixmode)
- {
- needed = ServerInstance->Config->AllowHalfop ? '%' : '@';
- prefixmode = FindPrefix(needed);
- }
-
- if (needed)
+ if (MOD_RESULT == MOD_RES_DENY)
+ return MODEACTION_DENY;
+ if (MOD_RESULT == MOD_RES_PASSTHRU)
{
- unsigned int neededrank = prefixmode->GetPrefixRank();
+ unsigned int neededrank = mh->GetLevelRequired();
/* Compare our rank on the channel against the rank of the required prefix,
* allow if >= ours. Because mIRC and xchat throw a tizz if the modes shown
* in NAMES(X) are not in rank order, we know the most powerful mode is listed
unsigned int ourrank = chan->GetPrefixValue(user);
if (ourrank < neededrank)
{
- /* Bog off */
- user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You must have channel privilege %c or above to %sset channel mode %c",
- user->nick.c_str(), chan->name.c_str(), needed, adding ? "" : "un", modechar);
+ ModeHandler* neededmh = NULL;
+ for(char c='A'; c <= 'z'; c++)
+ {
+ ModeHandler *privmh = FindMode(c, MODETYPE_CHANNEL);
+ if (privmh && privmh->GetPrefixRank() >= neededrank)
+ {
+ // this mode is sufficient to allow this action
+ if (!neededmh || privmh->GetPrefixRank() < neededmh->GetPrefixRank())
+ neededmh = privmh;
+ }
+ }
+ if (neededmh)
+ user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You must have channel %s access or above to %sset channel mode %c",
+ user->nick.c_str(), chan->name.c_str(), neededmh->name.c_str(), adding ? "" : "un", modechar);
+ else
+ user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You cannot %sset channel mode %c",
+ user->nick.c_str(), chan->name.c_str(), adding ? "" : "un", modechar);
return MODEACTION_DENY;
}
}
if (IS_OPER(user))
{
user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - Oper type %s does not have access to set %s mode %c",
- user->nick.c_str(), user->oper.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
+ user->nick.c_str(), user->oper->NameStr(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
}
else
{
return MODEACTION_DENY;
}
+ if (mh->GetTranslateType() == TR_NICK && !ServerInstance->FindNick(parameter))
+ {
+ user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel", user->nick.c_str(), parameter.c_str());
+ return MODEACTION_DENY;
+ }
+
+ if (mh->GetPrefixRank() && chan)
+ {
+ User* user_to_prefix = ServerInstance->FindNick(parameter);
+ if (!user_to_prefix)
+ return MODEACTION_DENY;
+ if (!chan->SetPrefix(user_to_prefix, modechar, adding))
+ return MODEACTION_DENY;
+ }
+
/* Call the handler for the mode */
ModeAction ma = mh->OnModeChange(user, targetuser, chan, parameter, adding);
if (ma != MODEACTION_ALLOW)
return ma;
- mh->ChangeCount(adding ? 1 : -1);
-
- if (mh->GetPrefixRank() && chan)
- {
- User* user_to_prefix = ServerInstance->FindNick(parameter);
- if (user_to_prefix)
- chan->SetPrefix(user_to_prefix, modechar, mh->GetPrefixRank(), adding);
- }
-
for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
(*watchers)->AfterMode(user, targetuser, chan, parameter, adding, type);
return;
}
- std::string mode_sequence = parameters[1];
+ ModResult MOD_RESULT;
+ FIRST_MOD_RESULT(OnPreMode, MOD_RESULT, (user, targetuser, targetchannel, parameters));
bool SkipAccessChecks = false;
- if (!IS_LOCAL(user) || ServerInstance->ULine(user->server))
- {
+ if (!IS_LOCAL(user) || ServerInstance->ULine(user->server) || MOD_RESULT == MOD_RES_ALLOW)
SkipAccessChecks = true;
- }
- else
- {
- /* Overall access control hook for mode change */
- int hook = targetchannel ? AC_GENERAL_MODE : AC_GENERAL_UMODE;
-
- LastParse = mode_sequence;
- ModResult MOD_RESULT;
- FIRST_MOD_RESULT(ServerInstance, OnAccessCheck, MOD_RESULT, (user, targetuser, targetchannel, hook));
- LastParse.clear();
- if (MOD_RESULT == MOD_RES_DENY)
- return;
- SkipAccessChecks = (MOD_RESULT == MOD_RES_ALLOW);
- }
+ else if (MOD_RESULT == MOD_RES_DENY)
+ return;
if (targetuser && !SkipAccessChecks && user != targetuser)
{
return;
}
+ std::string mode_sequence = parameters[1];
+
std::string output_mode;
std::ostringstream output_parameters;
LastParseParams.push_back(output_mode);
if (merge && targetchannel && targetchannel->IsModeSet(modechar) && !mh->IsListMode())
{
std::string ours = targetchannel->GetModeParameter(modechar);
- if (!mh->CheckTimeStamp(parameter, ours, targetchannel))
+ if (!mh->ResolveModeConflict(parameter, ours, targetchannel))
/* we won the mode merge, don't apply this mode */
continue;
}
if (pcnt)
{
+ TranslateType tt = mh->GetTranslateType();
+ if (tt == TR_NICK)
+ {
+ User* u = ServerInstance->FindNick(parameter);
+ if (u)
+ parameter = u->nick;
+ }
output_parameters << " " << parameter;
LastParseParams.push_back(parameter);
- LastParseTranslate.push_back(mh->GetTranslateType());
+ LastParseTranslate.push_back(tt);
}
if ( (output_mode.length() + output_parameters.str().length() > 450)
return;
ModResult MOD_RESULT;
- FIRST_MOD_RESULT(ServerInstance, OnRawMode, MOD_RESULT, (user, chan, mletter, "", true, 0));
+ FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, mletter, "", true, 0));
if (MOD_RESULT == MOD_RES_DENY)
continue;
bool display = true;
if (!user->HasPrivPermission("channels/auspex") && ServerInstance->Config->HideModeLists[mletter] && (chan->GetPrefixValue(user) < HALFOP_VALUE))
{
- user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :Only half-operators and above may view the +%c list",
+ user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You do not have access to view the +%c list",
user->nick.c_str(), chan->name.c_str(), mletter);
display = false;
}
- /** See below for a description of what craq this is :D
- */
unsigned char handler_id = (mletter - 'A') | MASK_CHANNEL;
for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
if ((mh->GetPrefix() == ',') || (mh->GetPrefix() == ':') || (mh->GetPrefix() == '#'))
return false;
+ if (mh->GetPrefix() && FindPrefix(mh->GetPrefix()))
+ return false;
+
mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
pos = (mh->GetModeChar()-65) | mask;
mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
pos = (mh->GetModeChar()-65) | mask;
- if (!modehandlers[pos])
+ if (modehandlers[pos] != mh)
return false;
/* Note: We can't stack here, as we have modes potentially being removed across many different channels.
return NULL;
}
-std::string ModeParser::ModeString(User* user, Channel* channel, bool nick_suffix)
-{
- std::string types;
- std::string pars;
-
- if (!channel || !user)
- return "";
-
- for (unsigned char mode = 'A'; mode <= 'z'; mode++)
- {
- unsigned char pos = (mode-65) | MASK_CHANNEL;
- ModeHandler* mh = modehandlers[pos];
- if ((mh) && (mh->GetNumParams(true)) && (mh->GetNumParams(false)))
- {
- ModePair ret;
- ret = mh->ModeSet(NULL, user, channel, user->nick);
- if ((ret.first) && (ret.second == user->nick))
- {
- if (nick_suffix)
- {
- pars.append(" ");
- pars.append(user->nick);
- }
- types.push_back(mh->GetModeChar());
- }
- }
- }
-
- if (nick_suffix)
- return types+pars;
- else
- return types;
-}
-
std::string ModeParser::GiveModeList(ModeMasks m)
{
std::string type1; /* Listmodes EXCEPT those with a prefix */
return type1 + "," + type2 + "," + type3 + "," + type4;
}
-std::string ModeParser::BuildPrefixes()
+std::string ModeParser::BuildPrefixes(bool lettersAndModes)
{
std::string mletters;
std::string mprefixes;
}
}
- for(std::map<int,std::pair<char,char> >::iterator n = prefixes.begin(); n != prefixes.end(); n++)
+ for(std::map<int,std::pair<char,char> >::reverse_iterator n = prefixes.rbegin(); n != prefixes.rend(); n++)
{
mletters = mletters + n->second.first;
mprefixes = mprefixes + n->second.second;
}
- return "(" + mprefixes + ")" + mletters;
+ return lettersAndModes ? "(" + mprefixes + ")" + mletters : mletters;
}
bool ModeParser::AddModeWatcher(ModeWatcher* mw)
}
}
-ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance)
+struct builtin_modes
{
- ModeHandler* modes[] =
+ ModeChannelSecret s;
+ ModeChannelPrivate p;
+ ModeChannelModerated m;
+ ModeChannelTopicOps t;
+
+ ModeChannelNoExternal n;
+ ModeChannelInviteOnly i;
+ ModeChannelKey k;
+ ModeChannelLimit l;
+
+ ModeChannelBan b;
+ ModeChannelOp o;
+ ModeChannelVoice v;
+
+ ModeUserWallops uw;
+ ModeUserInvisible ui;
+ ModeUserOperator uo;
+ ModeUserServerNoticeMask us;
+
+ void init(ModeParser* modes)
{
- new ModeChannelSecret(Instance),
- new ModeChannelPrivate(Instance),
- new ModeChannelModerated(Instance),
- new ModeChannelTopicOps(Instance),
-
- new ModeChannelNoExternal(Instance),
- new ModeChannelInviteOnly(Instance),
- new ModeChannelKey(Instance),
- new ModeChannelLimit(Instance),
-
- new ModeChannelBan(Instance),
- new ModeChannelOp(Instance),
- new ModeChannelHalfOp(Instance),
- new ModeChannelVoice(Instance),
-
- new ModeUserWallops(Instance),
- new ModeUserInvisible(Instance),
- new ModeUserOperator(Instance),
- new ModeUserServerNoticeMask(Instance),
-#define BUILTIN_MODE_COUNT 16
- };
+ modes->AddMode(&s);
+ modes->AddMode(&p);
+ modes->AddMode(&m);
+ modes->AddMode(&t);
+ modes->AddMode(&n);
+ modes->AddMode(&i);
+ modes->AddMode(&k);
+ modes->AddMode(&l);
+ modes->AddMode(&b);
+ modes->AddMode(&o);
+ modes->AddMode(&v);
+ modes->AddMode(&uw);
+ modes->AddMode(&ui);
+ modes->AddMode(&uo);
+ modes->AddMode(&us);
+ }
+};
+static builtin_modes static_modes;
+
+ModeParser::ModeParser()
+{
/* Clear mode handler list */
memset(modehandlers, 0, sizeof(modehandlers));
/* Last parse string */
LastParse.clear();
- /* Initialise the RFC mode letters */
- for (int index = 0; index < BUILTIN_MODE_COUNT; index++)
- this->AddMode(modes[index]);
-
seq = 0;
memset(&sent, 0, sizeof(sent));
+
+ static_modes.init(this);
}
ModeParser::~ModeParser()
{
- int count = 0;
- for(int i=0; i < 256; i++)
- {
- ModeHandler* mh = modehandlers[i];
- if (mh)
- {
- count++;
- delete mh;
- }
- }
- if (count != BUILTIN_MODE_COUNT)
- throw CoreException("Mode handler found non-core modes remaining at deallocation");
}