* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd: (C) 2002-2008 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ * InspIRCd: (C) 2002-2010 InspIRCd Development Team
+ * See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
* ---------------------------------------------------
*/
-/* $Core: libIRCDmode */
-/* $ExtraDeps: $(RELCPPFILES) */
-/* $ExtraObjects: modes/modeclasses.a */
-/* $ExtraBuild: @${MAKE} -C "modes" DIRNAME="src/modes" CC="$(CC)" $(MAKEARGS) CPPFILES="$(CPPFILES)" */
-
#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"
-/* +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"
-
-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)
-{
-}
+/* +s (server notice masks) */
+#include "modes/umode_s.h"
-ModeHandler::~ModeHandler()
+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)
{
}
-bool ModeHandler::IsListMode()
+CullResult ModeHandler::cull()
{
- return list;
+ if (ServerInstance->Modes)
+ ServerInstance->Modes->DelMode(this);
+ return classbase::cull();
}
-char ModeHandler::GetNeededPrefix()
+ModeHandler::~ModeHandler()
{
- return prefixneeded;
+ if (ServerInstance && ServerInstance->Modes && ServerInstance->Modes->FindMode(mode, m_type) == this)
+ ServerInstance->Logs->Log("MODE", DEFAULT, "ERROR: Destructor for mode %c called while still registered", mode);
}
-void ModeHandler::SetNeededPrefix(char needsprefix)
+bool ModeHandler::IsListMode()
{
- prefixneeded = needsprefix;
+ return list;
}
unsigned int ModeHandler::GetPrefixRank()
return 0;
}
-unsigned int ModeHandler::GetCount()
+int ModeHandler::GetNumParams(bool adding)
{
+ switch (parameters_taken)
+ {
+ case PARAM_ALWAYS:
+ return 1;
+ case PARAM_SETONLY:
+ return adding ? 1 : 0;
+ case PARAM_NONE:
+ break;
+ }
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()
+std::string ModeHandler::GetUserParameter(User* user)
{
- return m_type;
-}
-
-bool ModeHandler::NeedsOper()
-{
- return oper;
-}
-
-char ModeHandler::GetPrefix()
-{
- return prefix;
-}
-
-int ModeHandler::GetNumParams(bool adding)
-{
- return adding ? n_params_on : n_params_off;
+ return "";
}
-char ModeHandler::GetModeChar()
+ModResult ModeHandler::AccessCheck(User*, Channel*, std::string &, bool)
{
- return mode;
+ return MOD_RES_PASSTHRU;
}
-ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool, bool)
+ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool)
{
return MODEACTION_DENY;
}
-ModePair ModeHandler::ModeSet(User*, User* dest, Channel* channel, const std::string&)
-{
- if (dest)
- {
- return std::make_pair(dest->IsModeSet(this->mode), "");
- }
- else
- {
- return std::make_pair(channel->IsModeSet(this->mode), "");
- }
-}
-
void ModeHandler::DisplayList(User*, 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()
+void ModeHandler::OnParameterMissing(User* user, User* dest, Channel* channel)
{
}
-SimpleChannelModeHandler::~SimpleChannelModeHandler()
+bool ModeHandler::ResolveModeConflict(std::string& theirs, const std::string& ours, Channel*)
{
+ return (theirs < ours);
}
-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 ¶meter, bool adding)
{
-}
-
-ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool servermode)
-{
- /* Only opers can change other users modes */
- if (source != dest)
- return MODEACTION_DENY;
-
if (adding)
{
if (!dest->IsModeSet(this->GetModeChar()))
}
-ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding, bool servermode)
+ModeAction SimpleChannelModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
{
if (adding)
{
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)
{
}
return m_type;
}
-bool ModeWatcher::BeforeMode(User*, User*, Channel*, std::string&, bool, ModeType, bool)
+bool ModeWatcher::BeforeMode(User*, User*, Channel*, std::string&, bool, ModeType)
{
return true;
}
-void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool, ModeType, bool)
+void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool, ModeType)
{
}
d = ServerInstance->FindNick(dest);
if (!d)
{
- user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), dest);
+ user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(), dest);
return NULL;
}
return d;
}
-const char* ModeParser::Grant(User *d,Channel *chan,int MASK)
+void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targetchannel, const char* text)
{
- if (!chan)
- return "";
-
- UCListIter n = d->chans.find(chan);
- if (n != d->chans.end())
+ if (targetchannel)
{
- if (n->second & MASK)
+ /* Display channel's current mode string */
+ 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 == user || user->HasPrivPermission("users/auspex"))
{
- return "";
+ /* 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());
+ return;
}
- n->second = n->second | MASK;
- switch (MASK)
+ else
{
- case UCMODE_OP:
- n->first->AddOppedUser(d);
- break;
- case UCMODE_HOP:
- n->first->AddHalfoppedUser(d);
- break;
- case UCMODE_VOICE:
- n->first->AddVoicedUser(d);
- break;
+ user->WriteNumeric(ERR_USERSDONTMATCH, "%s :Can't view modes for other users", user->nick.c_str());
+ return;
}
- return d->nick.c_str();
}
- return "";
}
-const char* ModeParser::Revoke(User *d,Channel *chan,int MASK)
+ModeAction ModeParser::TryMode(User* user, User* targetuser, Channel* chan, bool adding, const unsigned char modechar,
+ std::string ¶meter, bool SkipACL)
{
- if (!chan)
- return "";
+ 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);
+
+ ModResult MOD_RESULT;
+ FIRST_MOD_RESULT(OnRawMode, MOD_RESULT, (user, chan, modechar, parameter, adding, pcnt));
+
+ if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY))
+ return MODEACTION_DENY;
- UCListIter n = d->chans.find(chan);
- if (n != d->chans.end())
+ if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW))
{
- if ((n->second & MASK) == 0)
- {
- return "";
- }
- n->second ^= MASK;
- switch (MASK)
+ MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding);
+
+ if (MOD_RESULT == MOD_RES_DENY)
+ return MODEACTION_DENY;
+ if (MOD_RESULT == MOD_RES_PASSTHRU)
{
- case UCMODE_OP:
- n->first->DelOppedUser(d);
- break;
- case UCMODE_HOP:
- n->first->DelHalfoppedUser(d);
- break;
- case UCMODE_VOICE:
- n->first->DelVoicedUser(d);
- break;
+ 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
+ * first, so we don't need to iterate, we just look up the first instead.
+ */
+ unsigned int ourrank = chan->GetPrefixValue(user);
+ if (ourrank < neededrank)
+ {
+ 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;
+ }
}
- return d->nick.c_str();
}
- return "";
-}
-void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targetchannel, const char* text)
-{
- if (targetchannel)
+ unsigned char handler_id = (modechar - 'A') | mask;
+
+ for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
{
- /* Display channel's current mode string */
- user->WriteNumeric(324, "%s %s +%s",user->nick.c_str(), targetchannel->name.c_str(), targetchannel->ChanModes(targetchannel->HasUser(user)));
- user->WriteNumeric(329, "%s %s %lu", user->nick.c_str(), targetchannel->name.c_str(), (unsigned long)targetchannel->age);
- return;
+ 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;
}
- else if (targetuser)
+
+ if (IS_LOCAL(user) && !IS_OPER(user))
{
- if (targetuser->Visibility && !targetuser->Visibility->VisibleTo(user))
+ char* disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes;
+ if (disabled[modechar - 'A'])
{
- user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), text);
- return;
+ 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", modechar);
+ return MODEACTION_DENY;
}
+ }
- if ((targetuser == user) || (IS_OPER(user)))
+ 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))
{
- /* Display user's current mode string */
- user->WriteNumeric(221, "%s :+%s",targetuser->nick.c_str(),targetuser->FormatModes());
- if (IS_OPER(targetuser))
- user->WriteNumeric(8, "%s +%s :Server notice mask", targetuser->nick.c_str(), targetuser->FormatNoticeMasks());
- return;
+ 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);
}
else
{
- user->WriteNumeric(502, "%s :Can't change mode for other users", user->nick.c_str());
- return;
+ user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - Only operators may set %s mode %c",
+ user->nick.c_str(), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
}
+ 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;
}
- /* No such nick/channel */
- user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), text);
- return;
+ 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 (pcnt && parameter.empty())
+ return MODEACTION_DENY;
+
+ 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);
+
+ return MODEACTION_ALLOW;
}
-void ModeParser::Process(const std::vector<std::string>& parameters, User *user, bool servermode)
+void ModeParser::Process(const std::vector<std::string>& parameters, User *user, bool merge)
{
std::string target = parameters[0];
- ModeType type = MODETYPE_USER;
- unsigned char mask = 0;
- Channel* targetchannel = ServerInstance->FindChan(parameters[0]);
- User* targetuser = ServerInstance->FindNick(parameters[0]);
+ Channel* targetchannel = ServerInstance->FindChan(target);
+ User* targetuser = ServerInstance->FindNick(target);
+ ModeType type = targetchannel ? MODETYPE_CHANNEL : MODETYPE_USER;
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) && (parameters.size() == 2))
+ if (!targetchannel && !targetuser)
+ {
+ user->WriteNumeric(ERR_NOSUCHNICK, "%s %s :No such nick/channel",user->nick.c_str(),target.c_str());
+ return;
+ }
+ if (parameters.size() == 1)
{
- const char* mode = parameters[1].c_str();
- int nonlistmodes_found = 0;
+ this->DisplayCurrentModes(user, targetuser, targetchannel, target.c_str());
+ return;
+ }
- seq++;
+ ModResult MOD_RESULT;
+ FIRST_MOD_RESULT(OnPreMode, MOD_RESULT, (user, targetuser, targetchannel, parameters));
- mask = MASK_CHANNEL;
-
- while (mode && *mode)
- {
- unsigned char mletter = *mode;
+ bool SkipAccessChecks = false;
- if (*mode == '+')
- {
- mode++;
- continue;
- }
-
- /* Ensure the user doesnt request the same mode twice,
- * so they cant flood themselves off out of idiocy.
- */
- if (sent[mletter] != seq)
- {
- sent[mletter] = seq;
- }
- else
- {
- mode++;
- continue;
- }
+ if (!IS_LOCAL(user) || ServerInstance->ULine(user->server) || MOD_RESULT == MOD_RES_ALLOW)
+ SkipAccessChecks = true;
+ else if (MOD_RESULT == MOD_RES_DENY)
+ return;
- ModeHandler *mh = this->FindMode(*mode, MODETYPE_CHANNEL);
- bool display = true;
+ if (targetuser && !SkipAccessChecks && user != targetuser)
+ {
+ user->WriteNumeric(ERR_USERSDONTMATCH, "%s :Can't change mode for other users", user->nick.c_str());
+ return;
+ }
- if ((mh) && (mh->IsListMode()))
- {
- int MOD_RESULT = 0;
- FOREACH_RESULT(I_OnRawMode, OnRawMode(user, targetchannel, *mode, "", true, 0));
- if (MOD_RESULT == ACR_DENY)
- {
- mode++;
- continue;
- }
+ std::string mode_sequence = parameters[1];
- if (ServerInstance->Config->HideModeLists[mletter] && (targetchannel->GetStatus(user) < STATUS_HOP))
- {
- user->WriteNumeric(482, "%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;
- }
+ std::string output_mode;
+ std::ostringstream output_parameters;
+ LastParseParams.push_back(output_mode);
+ LastParseTranslate.push_back(TR_TEXT);
- /** See below for a description of what craq this is :D
- */
- unsigned char handler_id = (*mode - 65) | mask;
+ bool adding = true;
+ char output_pm = '\0'; // current output state, '+' or '-'
+ unsigned int param_at = 2;
- 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;
- }
+ for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
+ {
+ unsigned char modechar = *letter;
+ if (modechar == '+' || modechar == '-')
+ {
+ adding = (modechar == '+');
+ continue;
+ }
- if (display)
- mh->DisplayList(user, targetchannel);
- }
- else
- nonlistmodes_found++;
+ ModeHandler *mh = this->FindMode(modechar, type);
+ if (!mh)
+ {
+ /* 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.c_str(), modechar);
+ continue;
+ }
- mode++;
+ std::string parameter = "";
+ int pcnt = mh->GetNumParams(adding);
+ if (pcnt && param_at == parameters.size())
+ {
+ /* No parameter, continue to the next mode */
+ mh->OnParameterMissing(user, targetuser, targetchannel);
+ continue;
+ }
+ else if (pcnt)
+ {
+ parameter = parameters[param_at++];
+ /* 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())
+ {
+ std::string ours = targetchannel->GetModeParameter(modechar);
+ if (!mh->ResolveModeConflict(parameter, ours, targetchannel))
+ /* we won the mode merge, don't apply this mode */
+ continue;
+ }
}
- /* We didnt have any modes that were non-list, we can return here */
- if (!nonlistmodes_found)
- return;
- }
+ ModeAction ma = TryMode(user, targetuser, targetchannel, adding, modechar, parameter, SkipAccessChecks);
- if (parameters.size() == 1)
- {
- this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0].c_str());
- }
- else if (parameters.size() > 1)
- {
- bool SkipAccessChecks = false;
+ if (ma != MODEACTION_ALLOW)
+ continue;
- if (targetchannel)
+ char needed_pm = adding ? '+' : '-';
+ if (needed_pm != output_pm)
{
- type = MODETYPE_CHANNEL;
- mask = MASK_CHANNEL;
-
- /* Extra security checks on channel modes
- * (e.g. are they a (half)op?
- */
+ output_pm = needed_pm;
+ output_mode.append(1, output_pm);
+ }
+ output_mode.append(1, modechar);
- if ((IS_LOCAL(user)) && (!ServerInstance->ULine(user->server)) && (!servermode))
+ if (pcnt)
+ {
+ TranslateType tt = mh->GetTranslateType();
+ if (tt == TR_NICK)
{
- /* We don't have halfop */
- int MOD_RESULT = 0;
- FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user, NULL, targetchannel, AC_GENERAL_MODE));
- if (MOD_RESULT == ACR_DENY)
- return;
- SkipAccessChecks = (MOD_RESULT == ACR_ALLOW);
+ User* u = ServerInstance->FindNick(parameter);
+ if (u)
+ parameter = u->nick;
}
+ output_parameters << " " << parameter;
+ LastParseParams.push_back(parameter);
+ LastParseTranslate.push_back(tt);
}
- else if (targetuser)
+
+ if ( (output_mode.length() + output_parameters.str().length() > 450)
+ || (output_mode.length() > 100)
+ || (LastParseParams.size() > ServerInstance->Config->Limits.MaxModes))
{
- type = MODETYPE_USER;
- mask = MASK_USER;
- if ((user != targetuser) && (!ServerInstance->ULine(user->server)))
- {
- user->WriteNumeric(502, "%s :Can't change mode for other users", user->nick.c_str());
- return;
- }
+ /* mode sequence is getting too long */
+ break;
+ }
+ }
+
+ LastParseParams[0] = output_mode;
+
+ if (!output_mode.empty())
+ {
+ LastParse = targetchannel ? targetchannel->name : targetuser->nick;
+ LastParse.append(" ");
+ LastParse.append(output_mode);
+ LastParse.append(output_parameters.str());
+
+ if (targetchannel)
+ {
+ targetchannel->WriteChannel(user, "MODE %s", LastParse.c_str());
+ FOREACH_MOD(I_OnMode,OnMode(user, targetchannel, TYPE_CHANNEL, LastParseParams, LastParseTranslate));
}
else
{
- /* No such nick/channel */
- user->WriteNumeric(401, "%s %s :No such nick/channel",user->nick.c_str(), parameters[0].c_str());
- return;
+ targetuser->WriteFrom(user, "MODE %s", LastParse.c_str());
+ FOREACH_MOD(I_OnMode,OnMode(user, targetuser, TYPE_USER, LastParseParams, LastParseTranslate));
}
+ }
+ else if (targetchannel && parameters.size() == 2)
+ {
+ /* Special case for displaying the list for listmodes,
+ * e.g. MODE #chan b, or MODE #chan +b without a parameter
+ */
+ this->DisplayListModes(user, targetchannel, mode_sequence);
+ }
+}
- std::string mode_sequence = parameters[1];
- std::string parameter;
- std::ostringstream parameter_list;
- std::string output_sequence;
- bool adding = true, state_change = false;
- unsigned char handler_id = 0;
- unsigned int parameter_counter = 2; /* Index of first parameter */
- unsigned int parameter_count = 0;
- bool last_successful_state_change = false;
-
- /* A mode sequence that doesnt start with + or -. Assume +. - Thanks for the suggestion spike (bug#132) */
- if ((*mode_sequence.begin() != '+') && (*mode_sequence.begin() != '-'))
- mode_sequence.insert(0, "+");
-
- for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
- {
- unsigned char modechar = *letter;
+void ModeParser::DisplayListModes(User* user, Channel* chan, std::string &mode_sequence)
+{
+ seq++;
- switch (modechar)
- {
- /* NB:
- * For + and - mode characters, we don't just stick the character into the output sequence.
- * This is because the user may do something dumb, like: +-+ooo or +oo-+. To prevent this
- * appearing in the output sequence, we store a flag which says there was a state change,
- * which is set on any + or -, however, the + or - that we finish on is only appended to
- * the output stream in the event it is followed by a non "+ or -" character, such as o or v.
- */
- case '+':
- /* The following expression prevents: +o+o nick nick, compressing it to +oo nick nick,
- * however, will allow the + if it is the first item in the sequence, regardless.
- */
- if ((!adding) || (!output_sequence.length()))
- state_change = true;
- adding = true;
- if (!output_sequence.length())
- last_successful_state_change = false;
- continue;
- break;
- case '-':
- if ((adding) || (!output_sequence.length()))
- state_change = true;
- adding = false;
- if (!output_sequence.length())
- last_successful_state_change = true;
- continue;
- break;
- default:
-
- /**
- * Watch carefully for the sleight of hand trick.
- * 65 is the ascii value of 'A'. We take this from
- * the char we're looking at to get a number between
- * 1 and 127. We then logic-or it to get the hashed
- * position, dependent on wether its a channel or
- * a user mode. This is a little stranger, but a lot
- * faster, than using a map of pairs.
- */
- handler_id = (modechar - 65) | mask;
-
- if (modehandlers[handler_id])
- {
- bool abort = false;
+ for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
+ {
+ unsigned char mletter = *letter;
+ if (mletter == '+')
+ continue;
- 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 < parameters.size())
- {
- parameter = parameters[parameter_counter++];
-
- /* Yerk, invalid! */
- if ((parameter.find(':') == 0) || (parameter.rfind(' ') != std::string::npos))
- parameter.clear();
- }
- else
- {
- /* No parameter, continue to the next mode */
- 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));
- }
-
- if (IS_LOCAL(user) && (MOD_RESULT == ACR_DENY))
- continue;
-
- if (!SkipAccessChecks && IS_LOCAL(user) && (MOD_RESULT != ACR_ALLOW))
- {
- /* 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, '%'.
- */
- if (needed && !prefixmode)
- prefixmode = 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)
- {
- /* Bog off */
- user->WriteNumeric(482, "%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, servermode) == false)
- {
- 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;
-
- /* 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 (adding && (IS_LOCAL(user)) && (modehandlers[handler_id]->NeedsOper()) && (!user->HasModePermission(modehandlers[handler_id]->GetModeChar(), type)))
- {
- if (IS_OPER(user))
- {
- user->WriteNumeric(481, "%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(481, "%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, servermode);
-
- if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter.empty()))
- {
- /* The handler nuked the parameter and they are supposed to have one.
- * We CANT continue now, even if they actually returned MODEACTION_ALLOW,
- * so we bail to the next mode character.
- */
- continue;
- }
-
- if (ma == MODEACTION_ALLOW)
- {
- /* We're about to output a valid mode letter - was there previously a pending state-change? */
- if (state_change)
- {
- if (adding != last_successful_state_change)
- output_sequence.append(adding ? "+" : "-");
- last_successful_state_change = adding;
- }
-
- /* Add the mode letter */
- output_sequence.push_back(modechar);
-
- modehandlers[handler_id]->ChangeCount(adding ? 1 : -1);
-
- /* Is there a valid parameter for this mode? If so add it to the parameter list */
- if ((modehandlers[handler_id]->GetNumParams(adding)) && (!parameter.empty()))
- {
- parameter_list << " " << parameter;
- parameter_count++;
- /* Does this mode have a prefix? */
- if (modehandlers[handler_id]->GetPrefix() && targetchannel)
- {
- User* user_to_prefix = ServerInstance->FindNick(parameter);
- if (user_to_prefix)
- targetchannel->SetPrefix(user_to_prefix, modehandlers[handler_id]->GetPrefix(),
- modehandlers[handler_id]->GetPrefixRank(), adding);
- }
- }
-
- /* 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, servermode);
-
- /* Reset the state change flag */
- state_change = false;
-
- if ((output_sequence.length() + parameter_list.str().length() > 450) || (output_sequence.length() > 100)
- || (parameter_count > ServerInstance->Config->Limits.MaxModes))
- {
- /* We cant have a mode sequence this long */
- letter = mode_sequence.end() - 1;
- continue;
- }
- }
- }
- }
- 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.c_str(), modechar);
- }
- break;
- }
+ /* Ensure the user doesnt request the same mode twice,
+ * so they cant flood themselves off out of idiocy.
+ */
+ if (sent[mletter] == seq)
+ continue;
+
+ sent[mletter] = seq;
+
+ ModeHandler *mh = this->FindMode(mletter, MODETYPE_CHANNEL);
+
+ if (!mh || !mh->IsListMode())
+ return;
+
+ ModResult MOD_RESULT;
+ 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 :You do not have access to view the +%c list",
+ user->nick.c_str(), chan->name.c_str(), mletter);
+ display = false;
}
- /* Was there at least one valid mode in the sequence? */
- if (!output_sequence.empty())
+ unsigned char handler_id = (mletter - 'A') | MASK_CHANNEL;
+
+ for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
{
- if (servermode)
- {
- if (type == MODETYPE_CHANNEL)
- {
- 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.c_str(),output_sequence.c_str(), parameter_list.str().c_str());
- this->LastParse = targetuser->nick;
- }
- }
- else
- {
- if (type == MODETYPE_CHANNEL)
- {
- 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, output_sequence + parameter_list.str()));
- this->LastParse = targetchannel->name;
- }
- else
- {
- 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, output_sequence + parameter_list.str()));
- this->LastParse = targetuser->nick;
- }
- }
+ std::string dummyparam;
- LastParse.append(" ");
- LastParse.append(output_sequence);
- LastParse.append(parameter_list.str());
+ if (!((*watchers)->BeforeMode(user, NULL, chan, dummyparam, true, MODETYPE_CHANNEL)))
+ display = false;
}
+ if (display)
+ mh->DisplayList(user, chan);
+ else
+ mh->DisplayEmptyList(user, chan);
}
}
std::string::size_type pos_of_dot = mask.find_first_of('.');
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 - or clearly ipv6 (starting with :) */
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.
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])
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)))
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::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 */
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()))
type4 += modehandlers[pos]->GetModeChar();
}
}
-
}
return type1 + "," + type2 + "," + type3 + "," + type4;
}
-bool ModeParser::PrefixComparison(prefixtype one, prefixtype two)
-{
- return one.second > two.second;
-}
-
-std::string ModeParser::BuildPrefixes()
+std::string ModeParser::BuildPrefixes(bool lettersAndModes)
{
std::string mletters;
std::string mprefixes;
- pfxcontainer pfx;
- std::map<char,char> prefix_to_mode;
+ std::map<int,std::pair<char,char> > prefixes;
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()))
{
- pfx.push_back(std::make_pair<char,unsigned int>(modehandlers[pos]->GetPrefix(), modehandlers[pos]->GetPrefixRank()));
- prefix_to_mode[modehandlers[pos]->GetPrefix()] = modehandlers[pos]->GetModeChar();
+ prefixes[modehandlers[pos]->GetPrefixRank()] = std::make_pair(
+ modehandlers[pos]->GetPrefix(), modehandlers[pos]->GetModeChar());
}
}
- sort(pfx.begin(), pfx.end(), ModeParser::PrefixComparison);
-
- for (pfxcontainer::iterator n = pfx.begin(); n != pfx.end(); n++)
+ for(std::map<int,std::pair<char,char> >::reverse_iterator n = prefixes.rbegin(); n != prefixes.rend(); n++)
{
- mletters = mletters + n->first;
- mprefixes = mprefixes + prefix_to_mode.find(n->first)->second;
+ mletters = mletters + n->second.first;
+ mprefixes = mprefixes + n->second.second;
}
- return "(" + mprefixes + ")" + mletters;
+ return lettersAndModes ? "(" + mprefixes + ")" + mletters : mletters;
}
bool ModeParser::AddModeWatcher(ModeWatcher* mw)
sprintf(moderemove,"-%c",this->GetModeChar());
parameters.push_back(user->nick);
parameters.push_back(moderemove);
- ServerInstance->Parser->CallHandler("MODE", parameters, user);
+ ServerInstance->Modes->Process(parameters, ServerInstance->FakeClient);
}
}
}
}
}
-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 ModeUserServerNotice(Instance),
- new ModeUserWallops(Instance),
- new ModeUserInvisible(Instance),
- new ModeUserOperator(Instance),
- new ModeUserServerNoticeMask(Instance),
- NULL
- };
+ 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; modes[index]; index++)
- this->AddMode(modes[index]);
-
seq = 0;
- memset(&sent, 0, 256);
+ memset(&sent, 0, sizeof(sent));
+
+ static_modes.init(this);
+}
+
+ModeParser::~ModeParser()
+{
}
projects / user / henk / code / inspircd.git / blobdiff