1 files changed, 135 insertions, 230 deletions

diff --git a/src/mode.cpp b/src/mode.cpp
index e2b0c2f68..15f5c0d60 100644
--- a/src/mode.cpp
+++ b/src/mode.cpp
@@ -24,35 +24,12 @@
 
 
 #include "inspircd.h"
-
-/* +s (secret) */
-/* +p (private) */
-/* +m (moderated) */
-/* +t (only (half) ops can change topic) */
-/* +n (no external messages) */
-/* +i (invite only) */
-/* +w (see wallops) */
-/* +i (invisible) */
-#include "modes/simplemodes.h"
-/* +b (bans) */
-#include "modes/cmode_b.h"
-/* +k (keyed channel) */
-#include "modes/cmode_k.h"
-/* +l (channel user limit) */
-#include "modes/cmode_l.h"
-/* +o (channel op) */
-#include "modes/cmode_o.h"
-/* +v (channel voice) */
-#include "modes/cmode_v.h"
-/* +o (operator) */
-#include "modes/umode_o.h"
-/* +s (server notice masks) */
-#include "modes/umode_s.h"
+#include "builtinmodes.h"
 
 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)
+	list(false), m_type(type), levelrequired(HALFOP_VALUE), prefixrank(0)
 {
 }
 
@@ -67,16 +44,6 @@ ModeHandler::~ModeHandler()
 {
 }
 
-bool ModeHandler::IsListMode()
-{
-	return list;
-}
-
-unsigned int ModeHandler::GetPrefixRank()
-{
-	return 0;
-}
-
 int ModeHandler::GetNumParams(bool adding)
 {
 	switch (parameters_taken)
@@ -127,7 +94,7 @@ ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel
 {
 	/* We're either trying to add a mode we already have or
 		remove a mode we don't have, deny. */
-	if (dest->IsModeSet(this->GetModeChar()) == adding)
+	if (dest->IsModeSet(this) == adding)
 		return MODEACTION_DENY;
 
 	/* adding will be either true or false, depending on if we
@@ -136,7 +103,7 @@ ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel
 		aren't removing a mode we don't have, we don't have to do any
 		other checks here to see if it's true or false, just add or
 		remove the mode */
-	dest->SetMode(this->GetModeChar(), adding);
+	dest->SetMode(this, adding);
 
 	return MODEACTION_ALLOW;
 }
@@ -146,7 +113,7 @@ ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Chan
 {
 	/* We're either trying to add a mode we already have or
 		remove a mode we don't have, deny. */
-	if (channel->IsModeSet(this->GetModeChar()) == adding)
+	if (channel->IsModeSet(this) == adding)
 		return MODEACTION_DENY;
 
 	/* adding will be either true or false, depending on if we
@@ -155,7 +122,7 @@ ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Chan
 		aren't removing a mode we don't have, we don't have to do any
 		other checks here to see if it's true or false, just add or
 		remove the mode */
-	channel->SetMode(this->GetModeChar(), adding);
+	channel->SetMode(this, adding);
 
 	return MODEACTION_ALLOW;
 }
@@ -167,10 +134,6 @@ ModeAction ParamChannelModeHandler::OnModeChange(User* source, User* dest, Chann
 	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;
 }
 
@@ -179,8 +142,8 @@ bool ParamChannelModeHandler::ParamValidate(std::string& parameter)
 	return true;
 }
 
-ModeWatcher::ModeWatcher(Module* Creator, char modeletter, ModeType type)
-	: mode(modeletter), m_type(type), creator(Creator)
+ModeWatcher::ModeWatcher(Module* Creator, const std::string& modename, ModeType type)
+	: mode(modename), m_type(type), creator(Creator)
 {
 }
 
@@ -188,39 +151,18 @@ ModeWatcher::~ModeWatcher()
 {
 }
 
-char ModeWatcher::GetModeChar()
-{
-	return mode;
-}
-
 ModeType ModeWatcher::GetModeType()
 {
 	return m_type;
 }
 
-bool ModeWatcher::BeforeMode(User*, User*, Channel*, std::string&, bool, ModeType)
+bool ModeWatcher::BeforeMode(User*, User*, Channel*, std::string&, bool)
 {
 	return true;
 }
 
-void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool, ModeType)
-{
-}
-
-User* ModeParser::SanityChecks(User *user, const char *dest, Channel *chan, int)
+void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool)
 {
-	User *d;
-	if ((!user) || (!dest) || (!chan) || (!*dest))
-	{
-		return NULL;
-	}
-	d = ServerInstance->FindNick(dest);
-	if (!d)
-	{
-		user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(), dest);
-		return NULL;
-	}
-	return d;
 }
 
 void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targetchannel, const char* text)
@@ -238,8 +180,11 @@ void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targ
 		{
 			/* Display user's current mode string */
 			user->WriteNumeric(RPL_UMODEIS, "%s :+%s",targetuser->nick.c_str(),targetuser->FormatModes());
-			if (IS_OPER(targetuser))
-				user->WriteNumeric(RPL_SNOMASKIS, "%s +%s :Server notice mask", targetuser->nick.c_str(), targetuser->FormatNoticeMasks());
+			if ((targetuser->IsOper()))
+			{
+				ModeHandler* snomask = FindMode('s', MODETYPE_USER);
+				user->WriteNumeric(RPL_SNOMASKIS, "%s %s :Server notice mask", targetuser->nick.c_str(), snomask->GetUserParameter(user).c_str());
+			}
 			return;
 		}
 		else
@@ -254,7 +199,6 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool
 		std::string &parameter, bool SkipACL)
 {
 	ModeType type = chan ? MODETYPE_CHANNEL : MODETYPE_USER;
-	unsigned char mask = chan ? MASK_CHANNEL : MASK_USER;
 
 	ModeHandler *mh = FindMode(modechar, type);
 	int pcnt = mh->GetNumParams(adding);
@@ -308,18 +252,23 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool
 		}
 	}
 
-	unsigned char handler_id = (modechar - 'A') | mask;
-
-	for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
+	// Ask mode watchers whether this mode change is OK
+	std::pair<ModeWatchIter, ModeWatchIter> itpair = modewatchermap.equal_range(mh->name);
+	for (ModeWatchIter i = itpair.first; i != itpair.second; ++i)
 	{
-		if ((*watchers)->BeforeMode(user, targetuser, chan, parameter, adding, type) == false)
-			return MODEACTION_DENY;
-		/* A module whacked the parameter completely, and there was one. abort. */
-		if (pcnt && parameter.empty())
-			return MODEACTION_DENY;
+		ModeWatcher* mw = i->second;
+		if (mw->GetModeType() == type)
+		{
+			if (!mw->BeforeMode(user, targetuser, chan, parameter, adding))
+				return MODEACTION_DENY;
+
+			// A module whacked the parameter completely, and there was one. Abort.
+			if (pcnt && parameter.empty())
+				return MODEACTION_DENY;
+		}
 	}
 
-	if (IS_LOCAL(user) && !IS_OPER(user))
+	if (IS_LOCAL(user) && !user->IsOper())
 	{
 		char* disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes;
 		if (disabled[modechar - 'A'])
@@ -333,10 +282,10 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool
 	if (adding && IS_LOCAL(user) && mh->NeedsOper() && !user->HasModePermission(modechar, type))
 	{
 		/* It's an oper only mode, and they don't have access to it. */
-		if (IS_OPER(user))
+		if (user->IsOper())
 		{
 			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->NameStr(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
+					user->nick.c_str(), user->oper->name.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
 		}
 		else
 		{
@@ -370,13 +319,21 @@ ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool
 	if (ma != MODEACTION_ALLOW)
 		return ma;
 
-	for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
-		(*watchers)->AfterMode(user, targetuser, chan, parameter, adding, type);
+	if ((!mh->IsListMode()) && (mh->GetNumParams(true)) && (chan))
+		chan->SetModeParam(mh, (adding ? parameter : ""));
+
+	itpair = modewatchermap.equal_range(mh->name);
+	for (ModeWatchIter i = itpair.first; i != itpair.second; ++i)
+	{
+		ModeWatcher* mw = i->second;
+		if (mw->GetModeType() == type)
+			mw->AfterMode(user, targetuser, chan, parameter, adding);
+	}
 
 	return MODEACTION_ALLOW;
 }
 
-void ModeParser::Process(const std::vector<std::string>& parameters, User *user, bool merge)
+void ModeParser::Process(const std::vector<std::string>& parameters, User* user, ModeProcessFlag flags)
 {
 	std::string target = parameters[0];
 	Channel* targetchannel = ServerInstance->FindChan(target);
@@ -456,9 +413,9 @@ void ModeParser::Process(const std::vector<std::string>& parameters, User *user,
 			/* Make sure the user isn't trying to slip in an invalid parameter */
 			if ((parameter.find(':') == 0) || (parameter.rfind(' ') != std::string::npos))
 				continue;
-			if (merge && targetchannel && targetchannel->IsModeSet(modechar) && !mh->IsListMode())
+			if ((flags & MODE_MERGE) && targetchannel && targetchannel->IsModeSet(mh) && !mh->IsListMode())
 			{
-				std::string ours = targetchannel->GetModeParameter(modechar);
+				std::string ours = targetchannel->GetModeParameter(mh);
 				if (!mh->ResolveModeConflict(parameter, ours, targetchannel))
 					/* we won the mode merge, don't apply this mode */
 					continue;
@@ -510,16 +467,15 @@ void ModeParser::Process(const std::vector<std::string>& parameters, User *user,
 		LastParse.append(output_mode);
 		LastParse.append(output_parameters.str());
 
+		if (!(flags & MODE_LOCALONLY))
+			ServerInstance->PI->SendMode(user, targetuser, targetchannel, LastParseParams, LastParseTranslate);
+
 		if (targetchannel)
-		{
-			targetchannel->WriteChannel(user, "MODE %s", LastParse.c_str());
-			FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, LastParseParams, LastParseTranslate));
-		}
+			targetchannel->WriteChannel(user, "MODE " + LastParse);
 		else
-		{
-			targetuser->WriteFrom(user, "MODE %s", LastParse.c_str());
-			FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, LastParseParams, LastParseTranslate));
-		}
+			targetuser->WriteFrom(user, "MODE " + LastParse);
+
+		FOREACH_MOD(OnMode, (user, targetuser, targetchannel, LastParseParams, LastParseTranslate));
 	}
 	else if (targetchannel && parameters.size() == 2)
 	{
@@ -566,15 +522,24 @@ void ModeParser::DisplayListModes(User* user, Channel* chan, std::string &mode_s
 			display = false;
 		}
 
-		unsigned char handler_id = (mletter - 'A') | MASK_CHANNEL;
-
-		for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
+		// Ask mode watchers whether it's OK to show the list
+		std::pair<ModeWatchIter, ModeWatchIter> itpair = modewatchermap.equal_range(mh->name);
+		for (ModeWatchIter i = itpair.first; i != itpair.second; ++i)
 		{
-			std::string dummyparam;
+			ModeWatcher* mw = i->second;
+			if (mw->GetModeType() == MODETYPE_CHANNEL)
+			{
+				std::string dummyparam;
 
-			if (!((*watchers)->BeforeMode(user, NULL, chan, dummyparam, true, MODETYPE_CHANNEL)))
-				display = false;
+				if (!mw->BeforeMode(user, NULL, chan, dummyparam, true))
+				{
+					// A mode watcher doesn't want us to show the list
+					display = false;
+					break;
+				}
+			}
 		}
+
 		if (display)
 			mh->DisplayList(user, chan);
 		else
@@ -582,11 +547,6 @@ void ModeParser::DisplayListModes(User* user, Channel* chan, std::string &mode_s
 	}
 }
 
-const std::string& ModeParser::GetLastParse()
-{
-	return LastParse;
-}
-
 void ModeParser::CleanMask(std::string &mask)
 {
 	std::string::size_type pos_of_pling = mask.find_first_of('!');
@@ -652,6 +612,7 @@ bool ModeParser::AddMode(ModeHandler* mh)
 		return false;
 
 	modehandlers[pos] = mh;
+	RecreateModeListFor004Numeric();
 	return true;
 }
 
@@ -688,12 +649,23 @@ bool ModeParser::DelMode(ModeHandler* mh)
 				// The channel may not be in the hash after RemoveMode(), see m_permchannels
 				Channel* chan = i->second;
 				++i;
-				mh->RemoveMode(chan);
+
+				irc::modestacker stack(false);
+				mh->RemoveMode(chan, stack);
+
+				std::vector<std::string> stackresult;
+				stackresult.push_back(chan->name);
+				while (stack.GetStackedLine(stackresult))
+				{
+					this->Process(stackresult, ServerInstance->FakeClient, MODE_LOCALONLY);
+					stackresult.erase(stackresult.begin() + 1, stackresult.end());
+				}
 			}
 		break;
 	}
 
 	modehandlers[pos] = NULL;
+	RecreateModeListFor004Numeric();
 
 	return true;
 }
@@ -712,52 +684,25 @@ ModeHandler* ModeParser::FindMode(unsigned const char modeletter, ModeType mt)
 	return modehandlers[pos];
 }
 
-std::string ModeParser::UserModeList()
+std::string ModeParser::CreateModeList(ModeType mt, bool needparam)
 {
-	char modestr[256];
-	int pointer = 0;
+	std::string modestr;
+	unsigned char mask = ((mt == MODETYPE_CHANNEL) ? MASK_CHANNEL : MASK_USER);
 
 	for (unsigned char mode = 'A'; mode <= 'z'; mode++)
 	{
-		unsigned char pos = (mode-65) | MASK_USER;
+		unsigned char pos = (mode-65) | mask;
 
-		if (modehandlers[pos])
-			modestr[pointer++] = mode;
+		if ((modehandlers[pos]) && ((!needparam) || (modehandlers[pos]->GetNumParams(true))))
+			modestr.push_back(mode);
 	}
-	modestr[pointer++] = 0;
-	return modestr;
-}
-
-std::string ModeParser::ChannelModeList()
-{
-	char modestr[256];
-	int pointer = 0;
-
-	for (unsigned char mode = 'A'; mode <= 'z'; mode++)
-	{
-		unsigned char pos = (mode-65) | MASK_CHANNEL;
 
-		if (modehandlers[pos])
-			modestr[pointer++] = mode;
-	}
-	modestr[pointer++] = 0;
 	return modestr;
 }
 
-std::string ModeParser::ParaModeList()
+void ModeParser::RecreateModeListFor004Numeric()
 {
-	char modestr[256];
-	int pointer = 0;
-
-	for (unsigned char mode = 'A'; mode <= 'z'; mode++)
-	{
-		unsigned char pos = (mode-65) | MASK_CHANNEL;
-
-		if ((modehandlers[pos]) && (modehandlers[pos]->GetNumParams(true)))
-			modestr[pointer++] = mode;
-	}
-	modestr[pointer++] = 0;
-	return modestr;
+	Cached004ModeList = CreateModeList(MODETYPE_USER) + " " + CreateModeList(MODETYPE_CHANNEL) + " " + CreateModeList(MODETYPE_CHANNEL, true);
 }
 
 ModeHandler* ModeParser::FindPrefix(unsigned const char pfxletter)
@@ -847,91 +792,62 @@ std::string ModeParser::BuildPrefixes(bool lettersAndModes)
 	return lettersAndModes ? "(" + mprefixes + ")" + mletters : mletters;
 }
 
-bool ModeParser::AddModeWatcher(ModeWatcher* mw)
+void ModeParser::AddModeWatcher(ModeWatcher* mw)
 {
-	unsigned char mask = 0;
-	unsigned char pos = 0;
-
-	if (!mw)
-		return false;
-
-	if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z'))
-		return false;
-
-	mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
-	pos = (mw->GetModeChar()-65) | mask;
-
-	modewatchers[pos].push_back(mw);
-
-	return true;
+	modewatchermap.insert(std::make_pair(mw->GetModeName(), mw));
 }
 
 bool ModeParser::DelModeWatcher(ModeWatcher* mw)
 {
-	unsigned char mask = 0;
-	unsigned char pos = 0;
-
-	if (!mw)
-		return false;
-
-	if ((mw->GetModeChar() < 'A') || (mw->GetModeChar() > 'z'))
-		return false;
-
-	mw->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
-	pos = (mw->GetModeChar()-65) | mask;
-
-	ModeWatchIter a = find(modewatchers[pos].begin(),modewatchers[pos].end(),mw);
-
-	if (a == modewatchers[pos].end())
+	std::pair<ModeWatchIter, ModeWatchIter> itpair = modewatchermap.equal_range(mw->GetModeName());
+	for (ModeWatchIter i = itpair.first; i != itpair.second; ++i)
 	{
-		return false;
+		if (i->second == mw)
+		{
+			modewatchermap.erase(i);
+			return true;
+		}
 	}
 
-	modewatchers[pos].erase(a);
-
-	return true;
+	return false;
 }
 
-/** This default implementation can remove simple user modes
- */
-void ModeHandler::RemoveMode(User* user, irc::modestacker* stack)
+void ModeHandler::RemoveMode(User* user)
 {
+	// Remove the mode if it's set on the user
 	if (user->IsModeSet(this->GetModeChar()))
 	{
-		if (stack)
-		{
-			stack->Push(this->GetModeChar());
-		}
-		else
-		{
-			std::vector<std::string> parameters;
-			parameters.push_back(user->nick);
-			parameters.push_back("-");
-			parameters[1].push_back(this->GetModeChar());
-			ServerInstance->Modes->Process(parameters, ServerInstance->FakeClient);
-		}
+		std::vector<std::string> parameters;
+		parameters.push_back(user->nick);
+		parameters.push_back("-");
+		parameters[1].push_back(this->GetModeChar());
+		ServerInstance->Modes->Process(parameters, ServerInstance->FakeClient, ModeParser::MODE_LOCALONLY);
 	}
 }
 
-/** This default implementation can remove simple channel modes
- * (no parameters)
- */
-void ModeHandler::RemoveMode(Channel* channel, irc::modestacker* stack)
+void ModeHandler::RemoveMode(Channel* channel, irc::modestacker& stack)
 {
-	if (channel->IsModeSet(this->GetModeChar()))
+	if (this->GetPrefixRank())
 	{
-		if (stack)
-		{
-			stack->Push(this->GetModeChar());
-		}
+		RemovePrefixMode(channel, stack);
+	}
+	else if (channel->IsModeSet(this))
+	{
+		if (this->GetNumParams(false))
+			// Removing this mode requires a parameter
+			stack.Push(this->GetModeChar(), channel->GetModeParameter(this));
 		else
-		{
-			std::vector<std::string> parameters;
-			parameters.push_back(channel->name);
-			parameters.push_back("-");
-			parameters[1].push_back(this->GetModeChar());
-			ServerInstance->SendMode(parameters, ServerInstance->FakeClient);
-		}
+			stack.Push(this->GetModeChar());
+	}
+}
+
+void ModeHandler::RemovePrefixMode(Channel* chan, irc::modestacker& stack)
+{
+	const UserMembList* userlist = chan->GetUsers();
+	for (UserMembCIter i = userlist->begin(); i != userlist->end(); ++i)
+	{
+		if (i->second->hasMode(this->GetModeChar()))
+			stack.Push(this->GetModeChar(), i->first->nick);
 	}
 }
 
@@ -956,40 +872,29 @@ struct builtin_modes
 	ModeUserOperator uo;
 	ModeUserServerNoticeMask us;
 
-	void init(ModeParser* modes)
-	{
-		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);
+	void init()
+	{
+		ServiceProvider* modes[] = { &s, &p, &m, &t, &n, &i, &k, &l, &b, &o, &v,
+									 &uw, &ui, &uo, &us };
+		ServerInstance->Modules->AddServices(modes, sizeof(modes)/sizeof(ServiceProvider*));
 	}
 };
 
 static builtin_modes static_modes;
 
+void ModeParser::InitBuiltinModes()
+{
+	static_modes.init();
+	static_modes.b.DoRehash();
+}
+
 ModeParser::ModeParser()
 {
 	/* Clear mode handler list */
 	memset(modehandlers, 0, sizeof(modehandlers));
 
-	/* Last parse string */
-	LastParse.clear();
-
 	seq = 0;
 	memset(&sent, 0, sizeof(sent));
-
-	static_modes.init(this);
 }
 
 ModeParser::~ModeParser()