]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/mode.cpp
Update all wiki links to point to the new wiki. This was done automatically with...
[user/henk/code/inspircd.git] / src / mode.cpp
index 3fad8627d31590e0a926c3f8569ca46d39da9461..35cbed451920a3f82bfc9d104b68788a10edc065 100644 (file)
@@ -2,8 +2,8 @@
  *       | Inspire Internet Relay Chat Daemon |
  *       +------------------------------------+
  *
- *  InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *  InspIRCd: (C) 2002-2009 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
  *
  * This program is free but copyrighted software; see
  *            the file COPYING for details.
@@ -11,7 +11,7 @@
  * ---------------------------------------------------
  */
 
-/* $Core: libIRCDmode */
+/* $Core */
 /* $ExtraDeps: $(RELCPPFILES) */
 /* $ExtraObjects: modes/modeclasses.a */
 /* $ExtraBuild: @${MAKE} -C "modes" DIRNAME="src/modes" CC="$(CC)" $(MAKEARGS) CPPFILES="$(CPPFILES)" */
 #include "modes/cmode_h.h"
 /* +v (channel voice) */
 #include "modes/cmode_v.h"
-/* +s (server notices) */
-#include "modes/umode_s.h"
 /* +w (see wallops) */
 #include "modes/umode_w.h"
 /* +i (invisible) */
 #include "modes/umode_i.h"
 /* +o (operator) */
 #include "modes/umode_o.h"
-/* +n (notice mask - our implementation of snomasks) */
-#include "modes/umode_n.h"
+/* +s (server notice masks) */
+#include "modes/umode_s.h"
 
-ModeHandler::ModeHandler(InspIRCd* Instance, char modeletter, int parameters_on, int parameters_off, bool listmode, ModeType type, bool operonly, char mprefix, char prefixrequired)
-       : ServerInstance(Instance), mode(modeletter), n_params_on(parameters_on), n_params_off(parameters_off), list(listmode), m_type(type), oper(operonly), prefix(mprefix), count(0), prefixneeded(prefixrequired)
+ModeHandler::ModeHandler(InspIRCd* Instance, 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)
 {
 }
 
@@ -70,6 +68,8 @@ bool ModeHandler::IsListMode()
 
 char ModeHandler::GetNeededPrefix()
 {
+       if (prefixneeded == '%' && !ServerInstance->Config->AllowHalfop)
+               return '@';
        return prefixneeded;
 }
 
@@ -91,7 +91,7 @@ unsigned int ModeHandler::GetCount()
 void ModeHandler::ChangeCount(int modifier)
 {
        count += modifier;
-       ServerInstance->Log(DEBUG,"Change count for mode %c is now %d", mode, count);
+       ServerInstance->Logs->Log("MODE", DEBUG,"Change count for mode %c is now %d", mode, count);
 }
 
 ModeType ModeHandler::GetModeType()
@@ -99,6 +99,11 @@ ModeType ModeHandler::GetModeType()
        return m_type;
 }
 
+TranslateType ModeHandler::GetTranslateType()
+{
+       return m_paramtype;
+}
+
 bool ModeHandler::NeedsOper()
 {
        return oper;
@@ -119,7 +124,12 @@ char ModeHandler::GetModeChar()
        return mode;
 }
 
-ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool)
+std::string ModeHandler::GetUserParameter(User* user)
+{
+       return "";
+}
+
+ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool, bool)
 {
        return MODEACTION_DENY;
 }
@@ -144,11 +154,76 @@ void ModeHandler::DisplayEmptyList(User*, Channel*)
 {
 }
 
+void ModeHandler::OnParameterMissing(User* user, User* dest, Channel* channel)
+{
+}
+
 bool ModeHandler::CheckTimeStamp(time_t theirs, time_t ours, const std::string&, const std::string&, Channel*)
 {
        return (ours < theirs);
 }
 
+SimpleUserModeHandler::SimpleUserModeHandler(InspIRCd* Instance, char modeletter) : ModeHandler(Instance, modeletter, 0, 0, false, MODETYPE_USER, false)
+{
+}
+
+SimpleUserModeHandler::~SimpleUserModeHandler()
+{
+}
+
+SimpleChannelModeHandler::~SimpleChannelModeHandler()
+{
+}
+
+SimpleChannelModeHandler::SimpleChannelModeHandler(InspIRCd* Instance, char modeletter) : ModeHandler(Instance, modeletter, 0, 0, false, MODETYPE_CHANNEL, false)
+{
+}
+
+ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool servermode)
+{
+       if (adding)
+       {
+               if (!dest->IsModeSet(this->GetModeChar()))
+               {
+                       dest->SetMode(this->GetModeChar(),true);
+                       return MODEACTION_ALLOW;
+               }
+       }
+       else
+       {
+               if (dest->IsModeSet(this->GetModeChar()))
+               {
+                       dest->SetMode(this->GetModeChar(),false);
+                       return MODEACTION_ALLOW;
+               }
+       }
+
+       return MODEACTION_DENY;
+}
+
+
+ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding, bool servermode)
+{
+       if (adding)
+       {
+               if (!channel->IsModeSet(this->GetModeChar()))
+               {
+                       channel->SetMode(this->GetModeChar(),true);
+                       return MODEACTION_ALLOW;
+               }
+       }
+       else
+       {
+               if (channel->IsModeSet(this->GetModeChar()))
+               {
+                       channel->SetMode(this->GetModeChar(),false);
+                       return MODEACTION_ALLOW;
+               }
+       }
+
+       return MODEACTION_DENY;
+}
+
 ModeWatcher::ModeWatcher(InspIRCd* Instance, char modeletter, ModeType type) : ServerInstance(Instance), mode(modeletter), m_type(type)
 {
 }
@@ -167,12 +242,12 @@ 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, ModeType, bool)
 {
        return true;
 }
 
-void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool, ModeType)
+void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool, ModeType, bool)
 {
 }
 
@@ -186,7 +261,7 @@ User* ModeParser::SanityChecks(User *user, const char *dest, Channel *chan, int)
        d = ServerInstance->FindNick(dest);
        if (!d)
        {
-               user->WriteServ("401 %s %s :No such nick/channel",user->nick, dest);
+               user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(), dest);
                return NULL;
        }
        return d;
@@ -217,7 +292,7 @@ const char* ModeParser::Grant(User *d,Channel *chan,int MASK)
                                n->first->AddVoicedUser(d);
                        break;
                }
-               return d->nick;
+               return d->nick.c_str();
        }
        return "";
 }
@@ -247,7 +322,7 @@ const char* ModeParser::Revoke(User *d,Channel *chan,int MASK)
                                n->first->DelVoicedUser(d);
                        break;
                }
-               return d->nick;
+               return d->nick.c_str();
        }
        return "";
 }
@@ -257,39 +332,39 @@ void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targ
        if (targetchannel)
        {
                /* Display channel's current mode string */
-               user->WriteServ("324 %s %s +%s",user->nick, targetchannel->name, targetchannel->ChanModes(targetchannel->HasUser(user)));
-               user->WriteServ("329 %s %s %lu", user->nick, targetchannel->name, (unsigned long)targetchannel->age);
+               user->WriteNumeric(RPL_CHANNELMODEIS, "%s %s +%s",user->nick.c_str(), targetchannel->name.c_str(), targetchannel->ChanModes(targetchannel->HasUser(user)));
+               user->WriteNumeric(RPL_CHANNELCREATED, "%s %s %lu", user->nick.c_str(), targetchannel->name.c_str(), (unsigned long)targetchannel->age);
                return;
        }
        else if (targetuser)
        {
                if (targetuser->Visibility && !targetuser->Visibility->VisibleTo(user))
                {
-                       user->WriteServ("401 %s %s :No such nick/channel",user->nick, text);
+                       user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(), text);
                        return;
                }
 
-               if ((targetuser == user) || (IS_OPER(user)))
+               if (targetuser == user || user->HasPrivPermission("users/auspex"))
                {
                        /* Display user's current mode string */
-                       user->WriteServ("221 %s :+%s",targetuser->nick,targetuser->FormatModes());
+                       user->WriteNumeric(RPL_UMODEIS, "%s :+%s",targetuser->nick.c_str(),targetuser->FormatModes());
                        if (IS_OPER(targetuser))
-                               user->WriteServ("008 %s +%s :Server notice mask", targetuser->nick, targetuser->FormatNoticeMasks());
+                               user->WriteNumeric(RPL_SNOMASKIS, "%s +%s :Server notice mask", targetuser->nick.c_str(), targetuser->FormatNoticeMasks());
                        return;
                }
                else
                {
-                       user->WriteServ("502 %s :Can't change mode for other users", user->nick);
+                       user->WriteNumeric(ERR_USERSDONTMATCH, "%s :Can't change mode for other users", user->nick.c_str());
                        return;
                }
        }
 
        /* No such nick/channel */
-       user->WriteServ("401 %s %s :No such nick/channel",user->nick, text);
+       user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(), text);
        return;
 }
 
-void ModeParser::Process(const char** parameters, int pcnt, User *user, bool servermode)
+void ModeParser::Process(const std::vector<std::string>& parameters, User *user, bool servermode)
 {
        std::string target = parameters[0];
        ModeType type = MODETYPE_USER;
@@ -298,20 +373,21 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
        User* targetuser  = ServerInstance->FindNick(parameters[0]);
 
        LastParse.clear();
+       LastParseParams.clear();
+       LastParseTranslate.clear();
 
        /* Special case for displaying the list for listmodes,
         * e.g. MODE #chan b, or MODE #chan +b without a parameter
         */
-       if ((targetchannel) && (pcnt == 2))
+       if ((targetchannel) && (parameters.size() == 2))
        {
-               const char* mode = parameters[1];
+               const char* mode = parameters[1].c_str();
                int nonlistmodes_found = 0;
-               bool sent[256];
+
+               seq++;
 
                mask = MASK_CHANNEL;
 
-               memset(&sent, 0, 256);
-               
                while (mode && *mode)
                {
                        unsigned char mletter = *mode;
@@ -321,13 +397,13 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                                mode++;
                                continue;
                        }
-                       
+
                        /* Ensure the user doesnt request the same mode twice,
                         * so they cant flood themselves off out of idiocy.
                         */
-                       if (!sent[mletter])
+                       if (sent[mletter] != seq)
                        {
-                               sent[mletter] = true;
+                               sent[mletter] = seq;
                        }
                        else
                        {
@@ -348,11 +424,14 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                                        continue;
                                }
 
-                               if (ServerInstance->Config->HideModeLists[mletter] && (targetchannel->GetStatus(user) < STATUS_HOP))
+                               if (!user->HasPrivPermission("channels/auspex"))
                                {
-                                       user->WriteServ("482 %s %s :Only half-operators and above may view the +%c list",user->nick, targetchannel->name, *mode++);
-                                       mh->DisplayEmptyList(user, targetchannel);
-                                       continue;
+                                       if (ServerInstance->Config->HideModeLists[mletter] && (targetchannel->GetStatus(user) < STATUS_HOP))
+                                       {
+                                               user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :Only half-operators and above may view the +%c list",user->nick.c_str(), targetchannel->name.c_str(), *mode++);
+                                               mh->DisplayEmptyList(user, targetchannel);
+                                               continue;
+                                       }
                                }
 
                                /** See below for a description of what craq this is :D
@@ -362,7 +441,7 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                                for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
                                {
                                        std::string dummyparam;
-                                       
+
                                        if (!((*watchers)->BeforeMode(user, NULL, targetchannel, dummyparam, true, MODETYPE_CHANNEL)))
                                                display = false;
                                }
@@ -381,12 +460,14 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                        return;
        }
 
-       if (pcnt == 1)
+       if (parameters.size() == 1)
        {
-               this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0]);
+               this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0].c_str());
        }
-       else if (pcnt > 1)
+       else if (parameters.size() > 1)
        {
+               bool SkipAccessChecks = false;
+
                if (targetchannel)
                {
                        type = MODETYPE_CHANNEL;
@@ -398,27 +479,31 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
 
                        if ((IS_LOCAL(user)) && (!ServerInstance->ULine(user->server)) && (!servermode))
                        {
+                               /* Make modes that are being changed visible to OnAccessCheck */
+                               LastParse = parameters[1];
                                /* We don't have halfop */
                                int MOD_RESULT = 0;
                                FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user, NULL, targetchannel, AC_GENERAL_MODE));
+                               LastParse.clear();
                                if (MOD_RESULT == ACR_DENY)
                                        return;
+                               SkipAccessChecks = (MOD_RESULT == ACR_ALLOW);
                        }
                }
                else if (targetuser)
                {
                        type = MODETYPE_USER;
                        mask = MASK_USER;
-                       if ((user != targetuser) && (!ServerInstance->ULine(user->server)))
+                       if (user != targetuser && IS_LOCAL(user) && !ServerInstance->ULine(user->server))
                        {
-                               user->WriteServ("502 %s :Can't change mode for other users", user->nick);
+                               user->WriteNumeric(ERR_USERSDONTMATCH, "%s :Can't change mode for other users", user->nick.c_str());
                                return;
                        }
                }
                else
                {
                        /* No such nick/channel */
-                       user->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[0]);
+                       user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str());
                        return;
                }
 
@@ -428,9 +513,10 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                std::string output_sequence;
                bool adding = true, state_change = false;
                unsigned char handler_id = 0;
-               int parameter_counter = 2; /* Index of first parameter */
-               int parameter_count = 0;
+               unsigned int parameter_counter = 2; /* Index of first parameter */
+               unsigned int parameter_count = 0;
                bool last_successful_state_change = false;
+               LastParseTranslate.push_back(TR_TEXT);
 
                /* A mode sequence that doesnt start with + or -. Assume +. - Thanks for the suggestion spike (bug#132) */
                if ((*mode_sequence.begin() != '+') && (*mode_sequence.begin() != '-'))
@@ -487,10 +573,12 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
 
                                                if (modehandlers[handler_id]->GetModeType() == type)
                                                {
+                                                       int MOD_RESULT = 0;
+
                                                        if (modehandlers[handler_id]->GetNumParams(adding))
                                                        {
                                                                /* This mode expects a parameter, do we have any parameters left in our list to use? */
-                                                               if (parameter_counter < pcnt)
+                                                               if (parameter_counter < parameters.size())
                                                                {
                                                                        parameter = parameters[parameter_counter++];
 
@@ -501,106 +589,111 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                                                                else
                                                                {
                                                                        /* No parameter, continue to the next mode */
+                                                                       modehandlers[handler_id]->OnParameterMissing(user, targetuser, targetchannel);
                                                                        continue;
                                                                }
 
+                                                               FOREACH_RESULT(I_OnRawMode, OnRawMode(user, targetchannel, modechar, parameter, adding, 1, servermode));
+                                                       }
+                                                       else
+                                                       {
+                                                               FOREACH_RESULT(I_OnRawMode, OnRawMode(user, targetchannel, modechar, "", adding, 0, servermode));
+                                                       }
 
-                                                               int MOD_RESULT = 0;
-                                                               FOREACH_RESULT(I_OnRawMode, OnRawMode(user, targetchannel, modechar, parameter, adding, 1));
-                                                               if (MOD_RESULT == ACR_DENY)
-                                                                       continue;
+                                                       if (IS_LOCAL(user) && (MOD_RESULT == ACR_DENY))
+                                                               continue;
 
-                                                               if (MOD_RESULT != ACR_ALLOW)
+                                                       if (!SkipAccessChecks && IS_LOCAL(user) && (MOD_RESULT != ACR_ALLOW))
+                                                       {
+                                                               /* Check access to this mode character */
+                                                               if ((type == MODETYPE_CHANNEL) && (modehandlers[handler_id]->GetNeededPrefix()))
                                                                {
-                                                                       /* Check access to this mode character */
-                                                                       if ((type == MODETYPE_CHANNEL) && (modehandlers[handler_id]->GetNeededPrefix()))
+                                                                       char needed = modehandlers[handler_id]->GetNeededPrefix();
+                                                                       ModeHandler* prefixmode = FindPrefix(needed);
+
+                                                                       /* 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, '%' or '@'.
+                                                                        */
+                                                                       if (needed && !prefixmode)
+                                                                               prefixmode = ServerInstance->Config->AllowHalfop ? FindPrefix('%') : FindPrefix('@');
+
+                                                                       unsigned int neededrank = prefixmode->GetPrefixRank();
+                                                                       /* 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
+                                                                        * first, so we don't need to iterate, we just look up the first instead.
+                                                                        */
+                                                                       std::string modestring = targetchannel->GetAllPrefixChars(user);
+                                                                       char ml = (modestring.empty() ? '\0' : modestring[0]);
+                                                                       ModeHandler* ourmode = FindPrefix(ml);
+                                                                       if (!ourmode || ourmode->GetPrefixRank() < neededrank)
                                                                        {
-                                                                               bool allowed = false;
-                                                                               char needed = modehandlers[handler_id]->GetNeededPrefix();
-                                                                               ModeHandler* prefixmode = FindPrefix(needed);
-                                                                               if (prefixmode)
-                                                                               {
-                                                                                       unsigned int neededrank = prefixmode->GetPrefixRank();
-
-                                                                                       /* Compare our rank on the channel against the rank of the required prefix,
-                                                                                        * allow if >= ours
-                                                                                        */
-
-                                                                                       std::string modestring = ModeString(user, targetchannel);
-                                                                                       for (std::string::iterator v = modestring.begin(); v != modestring.end(); ++v)
-                                                                                       {
-                                                                                               ModeHandler* ourmode = FindPrefix(*v);
-                                                                                               if (ourmode && (ourmode->GetPrefixRank() >= neededrank))
-                                                                                               {
-                                                                                                       /* Yay, allowed */
-                                                                                                       allowed = true;
-                                                                                                       break;
-                                                                                               }
-                                                                                       }
-                                                                               }
-
-                                                                               if (!allowed)
-                                                                               {
-                                                                                       user->WriteServ("482 %s %s :You require channel privilege '%c' or above to execute channel mode '%c'",user->nick,
-                                                                                                       targetchannel->name, needed, modechar);
-                                                                               }
+                                                                               /* 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(), targetchannel->name.c_str(), needed, adding ? "" : "un", modechar);
+                                                                               continue;
                                                                        }
                                                                }
+                                                       }
 
-                                                               bool had_parameter = !parameter.empty();
-                                                               
-                                                               for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
-                                                               {
-                                                                       if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false)
-                                                                       {
-                                                                               abort = true;
-                                                                               break;
-                                                                       }
-                                                                       /* A module whacked the parameter completely, and there was one. abort. */
-                                                                       if ((had_parameter) && (parameter.empty()))
-                                                                       {
-                                                                               abort = true;
-                                                                               break;
-                                                                       }
-                                                               }
+                                                       bool had_parameter = !parameter.empty();
 
-                                                               if (abort)
-                                                                       continue;
-                                                       }
-                                                       else
+                                                       for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
                                                        {
-                                                               int MOD_RESULT = 0;
-                                                               FOREACH_RESULT(I_OnRawMode, OnRawMode(user, targetchannel, modechar, "", adding, 0));
-                                                               if (MOD_RESULT == ACR_DENY)
-                                                                       continue;
-
-                                                               /* Fix by brain: mode watchers not being called for parameterless modes */
-                                                               for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
+                                                               if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type, servermode) == false)
                                                                {
-                                                                       if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == false)
-                                                                       {
-                                                                               abort = true;
-                                                                               break;
-                                                                       }
+                                                                       abort = true;
+                                                                       break;
+                                                               }
+                                                               /* A module whacked the parameter completely, and there was one. abort. */
+                                                               if ((had_parameter) && (parameter.empty()))
+                                                               {
+                                                                       abort = true;
+                                                                       break;
                                                                }
+                                                       }
 
-                                                               if (abort)
-                                                                       continue;
+                                                       if (abort)
+                                                               continue;
+
+                                                       /* If it's disabled, they have to be an oper.
+                                                        */
+                                                       if (IS_LOCAL(user) && !IS_OPER(user) && ((type == MODETYPE_CHANNEL ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes)[modehandlers[handler_id]->GetModeChar() - 'A']))
+                                                       {
+                                                               user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - %s mode %c has been locked by the administrator",
+                                                                               user->nick.c_str(),
+                                                                               type == MODETYPE_CHANNEL ? "channel" : "user",
+                                                                               modehandlers[handler_id]->GetModeChar());
+                                                               continue;
                                                        }
 
                                                        /* It's an oper only mode, check if theyre an oper. If they arent,
                                                         * eat any parameter that  came with the mode, and continue to next
                                                         */
-                                                       if ((IS_LOCAL(user)) && (modehandlers[handler_id]->NeedsOper()) && (!IS_OPER(user)))
+                                                       if (adding && (IS_LOCAL(user)) && (modehandlers[handler_id]->NeedsOper()) && (!user->HasModePermission(modehandlers[handler_id]->GetModeChar(), type)))
                                                        {
-                                                               user->WriteServ("481 %s :Permission Denied - Only IRC operators may %sset %s mode %c", user->nick,
-                                                                               adding ? "" : "un", type == MODETYPE_CHANNEL ? "channel" : "user",
-                                                                               modehandlers[handler_id]->GetModeChar());
+                                                               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",
+                                                                                       modehandlers[handler_id]->GetModeChar());
+                                                               }
+                                                               else
+                                                               {
+                                                                       user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - Only operators may set %s mode %c",
+                                                                                       user->nick.c_str(),
+                                                                                       type == MODETYPE_CHANNEL ? "channel" : "user",
+                                                                                       modehandlers[handler_id]->GetModeChar());
+                                                               }
                                                                continue;
                                                        }
 
                                                        /* Call the handler for the mode */
-                                                       ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding);
+                                                       ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding, servermode);
 
                                                        if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter.empty()))
                                                        {
@@ -620,7 +713,7 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                                                                                output_sequence.append(adding ? "+" : "-");
                                                                        last_successful_state_change = adding;
                                                                }
-                                                               
+
                                                                /* Add the mode letter */
                                                                output_sequence.push_back(modechar);
 
@@ -630,6 +723,8 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                                                                if ((modehandlers[handler_id]->GetNumParams(adding)) && (!parameter.empty()))
                                                                {
                                                                        parameter_list << " " << parameter;
+                                                                       LastParseParams.push_back(parameter);
+                                                                       LastParseTranslate.push_back(modehandlers[handler_id]->GetTranslateType());
                                                                        parameter_count++;
                                                                        /* Does this mode have a prefix? */
                                                                        if (modehandlers[handler_id]->GetPrefix() && targetchannel)
@@ -643,13 +738,13 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
 
                                                                /* Call all the AfterMode events in the mode watchers for this mode */
                                                                for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
-                                                                       (*watchers)->AfterMode(user, targetuser, targetchannel, parameter, adding, type);
+                                                                       (*watchers)->AfterMode(user, targetuser, targetchannel, parameter, adding, type, servermode);
 
                                                                /* Reset the state change flag */
                                                                state_change = false;
 
                                                                if ((output_sequence.length() + parameter_list.str().length() > 450) || (output_sequence.length() > 100)
-                                                                               || (parameter_count > MAXMODES))
+                                                                               || (parameter_count > ServerInstance->Config->Limits.MaxModes))
                                                                {
                                                                        /* We cant have a mode sequence this long */
                                                                        letter = mode_sequence.end() - 1;
@@ -661,7 +756,7 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                                        else
                                        {
                                                /* No mode handler? Unknown mode character then. */
-                                               user->WriteServ("%d %s %c :is unknown mode char to me", type == MODETYPE_CHANNEL ? 472 : 501, user->nick, modechar);
+                                               user->WriteServ("%d %s %c :is unknown mode char to me", type == MODETYPE_CHANNEL ? 472 : 501, user->nick.c_str(), modechar);
                                        }
                                break;
                        }
@@ -670,16 +765,17 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                /* Was there at least one valid mode in the sequence? */
                if (!output_sequence.empty())
                {
+                       LastParseParams.push_front(output_sequence);
                        if (servermode)
                        {
                                if (type == MODETYPE_CHANNEL)
                                {
-                                       targetchannel->WriteChannelWithServ(ServerInstance->Config->ServerName, "MODE %s %s%s", targetchannel->name, output_sequence.c_str(), parameter_list.str().c_str());
+                                       targetchannel->WriteChannelWithServ(ServerInstance->Config->ServerName, "MODE %s %s%s", targetchannel->name.c_str(), output_sequence.c_str(), parameter_list.str().c_str());
                                        this->LastParse = targetchannel->name;
                                }
                                else
                                {
-                                       targetuser->WriteServ("MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str());
+                                       targetuser->WriteServ("MODE %s %s%s",targetuser->nick.c_str(),output_sequence.c_str(), parameter_list.str().c_str());
                                        this->LastParse = targetuser->nick;
                                }
                        }
@@ -687,14 +783,14 @@ void ModeParser::Process(const char** parameters, int pcnt, User *user, bool ser
                        {
                                if (type == MODETYPE_CHANNEL)
                                {
-                                       targetchannel->WriteChannel(user,"MODE %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str());
-                                       FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, output_sequence + parameter_list.str()));
+                                       targetchannel->WriteChannel(user, "MODE %s %s%s", targetchannel->name.c_str(), output_sequence.c_str(), parameter_list.str().c_str());
+                                       FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, LastParseParams, LastParseTranslate));
                                        this->LastParse = targetchannel->name;
                                }
                                else
                                {
-                                       user->WriteTo(targetuser,"MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str());
-                                       FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, output_sequence + parameter_list.str()));
+                                       user->WriteTo(targetuser, "MODE %s %s%s", targetuser->nick.c_str(), output_sequence.c_str(), parameter_list.str().c_str());
+                                       FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, LastParseParams, LastParseTranslate));
                                        this->LastParse = targetuser->nick;
                                }
                        }
@@ -716,12 +812,15 @@ void ModeParser::CleanMask(std::string &mask)
        std::string::size_type pos_of_pling = mask.find_first_of('!');
        std::string::size_type pos_of_at = mask.find_first_of('@');
        std::string::size_type pos_of_dot = mask.find_first_of('.');
-       std::string::size_type pos_of_colon = mask.find_first_of(':'); /* Because ipv6 addresses are colon delimited */
+       std::string::size_type pos_of_colons = mask.find("::"); /* Because ipv6 addresses are colon delimited -- double so it treats extban as nick */
+
+       if (mask.length() >= 2 && mask[1] == ':')
+               return; // if it's an extban, don't even try guess how it needs to be formed.
 
        if ((pos_of_pling == std::string::npos) && (pos_of_at == std::string::npos))
        {
-               /* Just a nick, or just a host */
-               if ((pos_of_dot == std::string::npos) && (pos_of_colon == std::string::npos))
+               /* Just a nick, or just a host - or clearly ipv6 (starting with :) */
+               if ((pos_of_dot == std::string::npos) && (pos_of_colons == std::string::npos) && mask[0] != ':')
                {
                        /* It has no '.' in it, it must be a nick. */
                        mask.append("!*@*");
@@ -787,6 +886,9 @@ bool ModeParser::DelMode(ModeHandler* mh)
        if (!modehandlers[pos])
                return false;
 
+       /* Note: We can't stack here, as we have modes potentially being removed across many different channels.
+        * To stack here we have to make the algorithm slower. Discuss.
+        */
        switch (mh->GetModeType())
        {
                case MODETYPE_USER:
@@ -845,9 +947,6 @@ std::string ModeParser::ChannelModeList()
 
        for (unsigned char mode = 'A'; mode <= 'z'; mode++)
        {
-               if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
-                       continue;
-
                unsigned char pos = (mode-65) | MASK_CHANNEL;
 
                if (modehandlers[pos])
@@ -864,9 +963,6 @@ std::string ModeParser::ParaModeList()
 
        for (unsigned char mode = 'A'; mode <= 'z'; mode++)
        {
-               if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
-                       continue;
-
                unsigned char pos = (mode-65) | MASK_CHANNEL;
 
                if ((modehandlers[pos]) && (modehandlers[pos]->GetNumParams(true)))
@@ -890,7 +986,7 @@ ModeHandler* ModeParser::FindPrefix(unsigned const char pfxletter)
        return NULL;
 }
 
-std::string ModeParser::ModeString(User* user, Channel* channel)
+std::string ModeParser::ModeString(User* user, Channel* channel, bool nick_suffix)
 {
        std::string types;
        std::string pars;
@@ -908,17 +1004,23 @@ std::string ModeParser::ModeString(User* user, Channel* channel)
                        ret = mh->ModeSet(NULL, user, channel, user->nick);
                        if ((ret.first) && (ret.second == user->nick))
                        {
-                               pars.append(" ");
-                               pars.append(user->nick);
+                               if (nick_suffix)
+                               {
+                                       pars.append(" ");
+                                       pars.append(user->nick);
+                               }
                                types.push_back(mh->GetModeChar());
                        }
                }
        }
 
-       return types+pars;
+       if (nick_suffix)
+               return types+pars;
+       else
+               return types;
 }
 
-std::string ModeParser::ChanModes()
+std::string ModeParser::GiveModeList(ModeMasks m)
 {
        std::string type1;      /* Listmodes EXCEPT those with a prefix */
        std::string type2;      /* Modes that take a param when adding or removing */
@@ -927,13 +1029,10 @@ std::string ModeParser::ChanModes()
 
        for (unsigned char mode = 'A'; mode <= 'z'; mode++)
        {
-               if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
-                       continue;
-
-               unsigned char pos = (mode-65) | MASK_CHANNEL;
+               unsigned char pos = (mode-65) | m;
                 /* One parameter when adding */
                if (modehandlers[pos])
-               {       
+               {
                        if (modehandlers[pos]->GetNumParams(true))
                        {
                                if ((modehandlers[pos]->IsListMode()) && (!modehandlers[pos]->GetPrefix()))
@@ -963,14 +1062,13 @@ std::string ModeParser::ChanModes()
                                type4 += modehandlers[pos]->GetModeChar();
                        }
                }
-                        
        }
 
        return type1 + "," + type2 + "," + type3 + "," + type4;
 }
 
 bool ModeParser::PrefixComparison(prefixtype one, prefixtype two)
-{       
+{
        return one.second > two.second;
 }
 
@@ -983,9 +1081,6 @@ std::string ModeParser::BuildPrefixes()
 
        for (unsigned char mode = 'A'; mode <= 'z'; mode++)
        {
-               if ((!ServerInstance->Config->AllowHalfop) && (mode == 'h'))
-                       continue;
-
                unsigned char pos = (mode-65) | MASK_CHANNEL;
 
                if ((modehandlers[pos]) && (modehandlers[pos]->GetPrefix()))
@@ -1053,30 +1148,48 @@ bool ModeParser::DelModeWatcher(ModeWatcher* mw)
 
 /** This default implementation can remove simple user modes
  */
-void ModeHandler::RemoveMode(User* user)
+void ModeHandler::RemoveMode(User* user, irc::modestacker* stack)
 {
        char moderemove[MAXBUF];
-       const char* parameters[] = { user->nick, moderemove };
+       std::vector<std::string> parameters;
 
        if (user->IsModeSet(this->GetModeChar()))
        {
-               sprintf(moderemove,"-%c",this->GetModeChar());
-               ServerInstance->Parser->CallHandler("MODE", parameters, 2, user);
+               if (stack)
+               {
+                       stack->Push(this->GetModeChar());
+               }
+               else
+               {
+                       sprintf(moderemove,"-%c",this->GetModeChar());
+                       parameters.push_back(user->nick);
+                       parameters.push_back(moderemove);
+                       ServerInstance->Modes->Process(parameters, ServerInstance->FakeClient, false);
+               }
        }
 }
 
 /** This default implementation can remove simple channel modes
  * (no parameters)
  */
-void ModeHandler::RemoveMode(Channel* channel)
+void ModeHandler::RemoveMode(Channel* channel, irc::modestacker* stack)
 {
        char moderemove[MAXBUF];
-       const char* parameters[] = { channel->name, moderemove };
+       std::vector<std::string> parameters;
 
        if (channel->IsModeSet(this->GetModeChar()))
        {
-               sprintf(moderemove,"-%c",this->GetModeChar());
-               ServerInstance->SendMode(parameters, 2, ServerInstance->FakeClient);
+               if (stack)
+               {
+                       stack->Push(this->GetModeChar());
+               }
+               else
+               {
+                       sprintf(moderemove,"-%c",this->GetModeChar());
+                       parameters.push_back(channel->name);
+                       parameters.push_back(moderemove);
+                       ServerInstance->SendMode(parameters, ServerInstance->FakeClient);
+               }
        }
 }
 
@@ -1096,7 +1209,6 @@ ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance)
                new ModeChannelOp(Instance),
                new ModeChannelHalfOp(Instance),
                new ModeChannelVoice(Instance),
-               new ModeUserServerNotice(Instance),
                new ModeUserWallops(Instance),
                new ModeUserInvisible(Instance),
                new ModeUserOperator(Instance),
@@ -1104,9 +1216,8 @@ ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance)
                NULL
        };
 
-       /* Clear mode list */
+       /* Clear mode handler list */
        memset(modehandlers, 0, sizeof(modehandlers));
-       memset(modewatchers, 0, sizeof(modewatchers));
 
        /* Last parse string */
        LastParse.clear();
@@ -1114,4 +1225,7 @@ ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance)
        /* Initialise the RFC mode letters */
        for (int index = 0; modes[index]; index++)
                this->AddMode(modes[index]);
+
+       seq = 0;
+       memset(&sent, 0, sizeof(sent));
 }