* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
+ * 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.
+ * the file COPYING for details.
*
* ---------------------------------------------------
*/
-using namespace std;
+/* $Core */
#include "inspircd.h"
-#include "users.h"
-#include "modules.h"
#include "inspstring.h"
-#include "mode.h"
/* +s (secret) */
#include "modes/cmode_s.h"
#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)
- : ServerInstance(Instance), mode(modeletter), n_params_on(parameters_on), n_params_off(parameters_off), list(listmode), m_type(type), oper(operonly), prefix(mprefix)
+ModeHandler::ModeHandler(Module* Creator, char modeletter, ParamSpec Params, ModeType type)
+ : mode(modeletter), parameters_taken(Params), list(false), m_type(type), m_paramtype(TR_TEXT),
+ oper(false), prefix(0), count(0), levelrequired(HALFOP_VALUE), creator(Creator)
{
}
return 0;
}
-ModeType ModeHandler::GetModeType()
-{
- return m_type;
-}
-
-bool ModeHandler::NeedsOper()
+unsigned int ModeHandler::GetCount()
{
- return oper;
+ return 0;
}
-char ModeHandler::GetPrefix()
+void ModeHandler::ChangeCount(int modifier)
{
- return prefix;
+ count += modifier;
+ ServerInstance->Logs->Log("MODE", DEBUG,"Change count for mode %c is now %d", mode, count);
}
int ModeHandler::GetNumParams(bool adding)
{
- return adding ? n_params_on : n_params_off;
+ switch (parameters_taken)
+ {
+ case PARAM_ALWAYS:
+ return 1;
+ case PARAM_SETONLY:
+ return adding ? 1 : 0;
+ case PARAM_NONE:
+ break;
+ }
+ return 0;
}
char ModeHandler::GetModeChar()
return mode;
}
-ModeAction ModeHandler::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)
+std::string ModeHandler::GetUserParameter(User* user)
+{
+ return "";
+}
+
+ModResult ModeHandler::AccessCheck(User*, Channel*, std::string &, bool)
+{
+ return MOD_RES_PASSTHRU;
+}
+
+ModeAction ModeHandler::OnModeChange(User*, User*, Channel*, std::string&, bool)
{
return MODEACTION_DENY;
}
-ModePair ModeHandler::ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter)
+ModePair ModeHandler::ModeSet(User*, User* dest, Channel* channel, const std::string&)
{
if (dest)
{
}
}
-void ModeHandler::DisplayList(userrec* user, chanrec* channel)
+void ModeHandler::DisplayList(User*, Channel*)
+{
+}
+
+void ModeHandler::DisplayEmptyList(User*, Channel*)
{
}
-bool ModeHandler::CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel)
+void ModeHandler::OnParameterMissing(User* user, User* dest, Channel* channel)
{
- return (ours < theirs);
}
-ModeWatcher::ModeWatcher(InspIRCd* Instance, char modeletter, ModeType type) : ServerInstance(Instance), mode(modeletter), m_type(type)
+bool ModeHandler::CheckTimeStamp(std::string& theirs, const std::string& ours, Channel*)
+{
+ return (theirs < ours);
+}
+
+ModeAction SimpleUserModeHandler::OnModeChange(User* source, User* dest, Channel* channel, std::string ¶meter, bool adding)
+{
+ 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 ¶meter, bool adding)
+{
+ 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(char modeletter, ModeType type) : mode(modeletter), m_type(type)
{
}
return m_type;
}
-bool ModeWatcher::BeforeMode(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding, ModeType type)
+bool ModeWatcher::BeforeMode(User*, User*, Channel*, std::string&, bool, ModeType)
{
return true;
}
-void ModeWatcher::AfterMode(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter, bool adding, ModeType type)
+void ModeWatcher::AfterMode(User*, User*, Channel*, const std::string&, bool, ModeType)
{
}
-userrec* ModeParser::SanityChecks(userrec *user,const char *dest,chanrec *chan,int status)
+User* ModeParser::SanityChecks(User *user, const char *dest, Channel *chan, int)
{
- userrec *d;
+ User *d;
if ((!user) || (!dest) || (!chan) || (!*dest))
{
return NULL;
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;
}
-const char* ModeParser::Grant(userrec *d,chanrec *chan,int MASK)
+void ModeParser::DisplayCurrentModes(User *user, User* targetuser, Channel* targetchannel, const char* text)
{
- if (!chan)
- return "";
-
- for (std::vector<ucrec*>::const_iterator i = d->chans.begin(); i != d->chans.end(); i++)
+ if (targetchannel)
{
- ucrec* n = (ucrec*)(*i);
- if (n->channel == chan)
+ /* 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"))
{
- if (n->uc_modes & MASK)
- {
- return "";
- }
- n->uc_modes = n->uc_modes | MASK;
- switch (MASK)
- {
- case UCMODE_OP:
- n->channel->AddOppedUser(d);
- break;
- case UCMODE_HOP:
- n->channel->AddHalfoppedUser(d);
- break;
- case UCMODE_VOICE:
- n->channel->AddVoicedUser(d);
- break;
- }
- ServerInstance->Log(DEBUG,"grant: %s %s",n->channel->name,d->nick);
- return d->nick;
+ /* 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;
+ }
+ else
+ {
+ user->WriteNumeric(ERR_USERSDONTMATCH, "%s :Can't view modes for other users", user->nick.c_str());
+ return;
}
}
- return "";
}
-const char* ModeParser::Revoke(userrec *d,chanrec *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));
- for (std::vector<ucrec*>::const_iterator i = d->chans.begin(); i != d->chans.end(); i++)
+ if (IS_LOCAL(user) && (MOD_RESULT == MOD_RES_DENY))
+ return MODEACTION_DENY;
+
+ if (chan && !SkipACL && (MOD_RESULT != MOD_RES_ALLOW))
{
- ucrec* n = (ucrec*)(*i);
- if (n->channel == chan)
+ MOD_RESULT = mh->AccessCheck(user, chan, parameter, adding);
+
+ if (MOD_RESULT == MOD_RES_DENY)
+ return MODEACTION_DENY;
+ if (MOD_RESULT == MOD_RES_PASSTHRU)
{
- if ((n->uc_modes & MASK) == 0)
- {
- return "";
- }
- n->uc_modes ^= MASK;
- switch (MASK)
+ 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)
{
- case UCMODE_OP:
- n->channel->DelOppedUser(d);
- break;
- case UCMODE_HOP:
- n->channel->DelHalfoppedUser(d);
- break;
- case UCMODE_VOICE:
- n->channel->DelVoicedUser(d);
- break;
+ /* Bog off */
+ // TODO replace with a real search for the proper prefix
+ char needed = neededrank > HALFOP_VALUE ? '@' : '%';
+ user->WriteNumeric(ERR_CHANOPRIVSNEEDED, "%s %s :You must have channel privilege %c or above to %sset channel mode %c",
+ user->nick.c_str(), chan->name.c_str(), needed, adding ? "" : "un", modechar);
+ return MODEACTION_DENY;
}
- ServerInstance->Log(DEBUG,"revoke: %s %s",n->channel->name,d->nick);
- return d->nick;
}
}
- return "";
-}
-void ModeParser::DisplayCurrentModes(userrec *user, userrec* targetuser, chanrec* 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->WriteServ("324 %s %s +%s",user->nick, targetchannel->name, targetchannel->ChanModes(targetchannel->HasUser(user)));
- user->WriteServ("329 %s %s %d", user->nick, targetchannel->name, targetchannel->created);
- 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))
{
- /* Display user's current mode string */
- user->WriteServ("221 %s :+%s",targetuser->nick,targetuser->FormatModes());
- if (*targetuser->oper)
- user->WriteServ("008 %s +%s :Server notice mask", targetuser->nick, targetuser->FormatNoticeMasks());
- return;
+ char* disabled = (type == MODETYPE_CHANNEL) ? ServerInstance->Config->DisabledCModes : ServerInstance->Config->DisabledUModes;
+ if (disabled[modechar - '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", modechar);
+ return MODEACTION_DENY;
+ }
}
- /* No such nick/channel */
- user->WriteServ("401 %s %s :No such nick/channel",user->nick, text);
- return;
+ 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))
+ {
+ user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - Oper type %s does not have access to set %s mode %c",
+ user->nick.c_str(), irc::Spacify(user->oper.c_str()), type == MODETYPE_CHANNEL ? "channel" : "user", modechar);
+ }
+ else
+ {
+ 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;
+ }
+
+ /* 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;
+
+ mh->ChangeCount(adding ? 1 : -1);
+
+ if (mh->GetPrefixRank() && chan)
+ {
+ User* user_to_prefix = ServerInstance->FindNick(parameter);
+ if (user_to_prefix)
+ chan->SetPrefix(user_to_prefix, modechar, adding);
+ }
+
+ 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 char** parameters, int pcnt, userrec *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;
- chanrec* targetchannel = ServerInstance->FindChan(parameters[0]);
- userrec* 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();
+
+ 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)
+ {
+ this->DisplayCurrentModes(user, targetuser, targetchannel, target.c_str());
+ return;
+ }
- ServerInstance->Log(DEBUG,"ModeParser::Process start: pcnt=%d",pcnt);
- for (int j = 0; j < pcnt; j++)
- ServerInstance->Log(DEBUG," parameters[%d] = '%s'", j, parameters[j]);
+ std::string mode_sequence = parameters[1];
- LastParse = "";
+ bool SkipAccessChecks = false;
- /* 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 (!IS_LOCAL(user) || ServerInstance->ULine(user->server))
{
- ServerInstance->Log(DEBUG,"Spool list");
- const char* mode = parameters[1];
- if (*mode == '+')
- mode++;
- unsigned char handler_id = ((*mode) - 65) | MASK_CHANNEL;
- ModeHandler* mh = modehandlers[handler_id];
- if ((mh) && (mh->IsListMode()))
- {
- mh->DisplayList(user, targetchannel);
+ SkipAccessChecks = true;
+ }
+ else
+ {
+ ModResult MOD_RESULT;
+ FIRST_MOD_RESULT(OnPreMode, MOD_RESULT, (user, targetuser, targetchannel, parameters));
+ if (MOD_RESULT == MOD_RES_DENY)
return;
- }
+ SkipAccessChecks = (MOD_RESULT == MOD_RES_ALLOW);
}
- if (pcnt == 1)
+ if (targetuser && !SkipAccessChecks && user != targetuser)
{
- ServerInstance->Log(DEBUG,"Mode list request");
- this->DisplayCurrentModes(user, targetuser, targetchannel, parameters[0]);
+ user->WriteNumeric(ERR_USERSDONTMATCH, "%s :Can't change mode for other users", user->nick.c_str());
+ return;
}
- else if (pcnt > 1)
- {
- ServerInstance->Log(DEBUG,"More than one parameter");
- if (targetchannel)
+ std::string output_mode;
+ std::ostringstream output_parameters;
+ LastParseParams.push_back(output_mode);
+ LastParseTranslate.push_back(TR_TEXT);
+
+ bool adding = true;
+ char output_pm = '\0'; // current output state, '+' or '-'
+ unsigned int param_at = 2;
+
+ for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
+ {
+ unsigned char modechar = *letter;
+ if (modechar == '+' || modechar == '-')
{
- type = MODETYPE_CHANNEL;
- mask = MASK_CHANNEL;
+ adding = (modechar == '+');
+ continue;
+ }
- /* Extra security checks on channel modes
- * (e.g. are they a (half)op?
- */
+ 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;
+ }
- if ((IS_LOCAL(user)) && (targetchannel->GetStatus(user) < STATUS_HOP))
+ 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())
{
- /* We don't have halfop */
- ServerInstance->Log(DEBUG,"The user is not a halfop or above, checking other reasons for being able to set the modes");
+ std::string ours = targetchannel->GetModeParameter(modechar);
+ if (!mh->CheckTimeStamp(parameter, ours, targetchannel))
+ /* we won the mode merge, don't apply this mode */
+ continue;
+ }
+ }
- int MOD_RESULT = 0;
- FOREACH_RESULT(I_OnAccessCheck,OnAccessCheck(user, NULL, targetchannel, AC_GENERAL_MODE));
- if (MOD_RESULT == ACR_DENY)
- return;
+ ModeAction ma = TryMode(user, targetuser, targetchannel, adding, modechar, parameter, SkipAccessChecks);
- if (MOD_RESULT == ACR_DEFAULT)
- {
- /* Are we a uline or is it a servermode? */
- if ((!ServerInstance->ULine(user->server)) && (!servermode))
- {
- /* Not enough permission:
- * NOT a uline and NOT a servermode,
- * OR, NOT halfop or above.
- */
- user->WriteServ("482 %s %s :You're not a channel (half)operator",user->nick, targetchannel->name);
- return;
- }
- }
+ if (ma != MODEACTION_ALLOW)
+ continue;
+
+ char needed_pm = adding ? '+' : '-';
+ if (needed_pm != output_pm)
+ {
+ output_pm = needed_pm;
+ output_mode.append(1, output_pm);
+ }
+ output_mode.append(1, modechar);
+
+ if (pcnt)
+ {
+ TranslateType tt = mh->GetTranslateType();
+ if (tt == TR_NICK)
+ {
+ User* u = ServerInstance->FindNick(parameter);
+ if (u)
+ parameter = u->nick;
}
+ output_parameters << " " << parameter;
+ LastParseParams.push_back(parameter);
+ LastParseTranslate.push_back(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;
+ /* 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->WriteServ("401 %s %s :No such nick/channel",user->nick, parameters[0]);
- 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;
- int parameter_counter = 2; /* Index of first parameter */
- int parameter_count = 0;
+void ModeParser::DisplayListModes(User* user, Channel* chan, std::string &mode_sequence)
+{
+ seq++;
- /* 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 mletter = *letter;
+ if (mletter == '+')
+ continue;
- for (std::string::const_iterator letter = mode_sequence.begin(); letter != mode_sequence.end(); letter++)
- {
- unsigned char modechar = *letter;
+ /* Ensure the user doesnt request the same mode twice,
+ * so they cant flood themselves off out of idiocy.
+ */
+ if (sent[mletter] == seq)
+ continue;
- ServerInstance->Log(DEBUG,"Process letter %c", modechar);
+ sent[mletter] = 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;
- continue;
- break;
- case '-':
- if ((adding) || (!output_sequence.length()))
- state_change = true;
- adding = false;
- 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;
+ ModeHandler *mh = this->FindMode(mletter, MODETYPE_CHANNEL);
- for (ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
- {
- if ((*watchers)->BeforeMode(user, targetuser, targetchannel, parameter, adding, type) == MODEACTION_DENY)
- abort = true;
- }
- if ((modehandlers[handler_id]->GetModeType() == type) && (!abort))
- {
- 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)
- {
- ServerInstance->Log(DEBUG,"parameter_counter = %d, pcnt = %d", parameter_counter, pcnt);
- parameter = parameters[parameter_counter++];
-
- /* Yerk, invalid! */
- if ((parameter.find(':') == 0) || (parameter.rfind(' ') != std::string::npos))
- parameter = "";
- }
- else
- {
- /* No parameter, continue to the next mode */
- 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()) && (!*user->oper))
- {
- 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());
- continue;
- }
-
- /* Call the handler for the mode */
- ModeAction ma = modehandlers[handler_id]->OnModeChange(user, targetuser, targetchannel, parameter, adding);
-
- if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter == ""))
- {
- /* 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)
- output_sequence.append(adding ? "+" : "-");
-
- /* Add the mode letter */
- output_sequence.push_back(modechar);
-
- /* Is there a valid parameter for this mode? If so add it to the parameter list */
- if ((modehandlers[handler_id]->GetNumParams(adding)) && (parameter != ""))
- {
- parameter_list << " " << parameter;
- parameter_count++;
- /* Does this mode have a prefix? */
- if (modehandlers[handler_id]->GetPrefix() && targetchannel)
- {
- userrec* 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);
-
- /* Reset the state change flag */
- state_change = false;
-
- if ((output_sequence.length() + parameter_list.str().length() > 450) || (output_sequence.length() > 100)
- || (parameter_count > 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("472 %s %c :is unknown mode char to me",user->nick, modechar);
- }
- break;
- }
+ 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 :Only half-operators and above may 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 != "")
+
+ /** See below for a description of what craq this is :D
+ */
+ unsigned char handler_id = (mletter - 'A') | MASK_CHANNEL;
+
+ for(ModeWatchIter watchers = modewatchers[handler_id].begin(); watchers != modewatchers[handler_id].end(); watchers++)
{
- if (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());
- this->LastParse = targetchannel->name;
- }
- else
- {
- targetuser->WriteServ("MODE %s %s%s",targetuser->nick,output_sequence.c_str(), parameter_list.str().c_str());
- this->LastParse = targetuser->nick;
- }
- }
- else
- {
- if (type == MODETYPE_CHANNEL)
- {
- ServerInstance->Log(DEBUG,"Write output sequence and parameters to channel: %s %s%s",targetchannel->name,output_sequence.c_str(),parameter_list.str().c_str());
- 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()));
- 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()));
- 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_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("!*@*");
}
}
-bool ModeParser::AddMode(ModeHandler* mh, unsigned const char modeletter)
+bool ModeParser::AddMode(ModeHandler* mh)
{
unsigned char mask = 0;
unsigned char pos = 0;
* If they do that, thats their problem, and if i ever EVER see an
* official InspIRCd developer do that, i'll beat them with a paddle!
*/
- if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z'))
+ if ((mh->GetModeChar() < 'A') || (mh->GetModeChar() > 'z') || (mh->GetPrefix() > 126))
return false;
/* A mode prefix of ',' is not acceptable, it would fuck up server to server.
* A mode prefix of ':' will fuck up both server to server, and client to server.
+ * A mode prefix of '#' will mess up /whois and /privmsg
*/
- if ((mh->GetPrefix() == ',') || (mh->GetPrefix() == ':'))
+ if ((mh->GetPrefix() == ',') || (mh->GetPrefix() == ':') || (mh->GetPrefix() == '#'))
return false;
mh->GetModeType() == MODETYPE_USER ? mask = MASK_USER : mask = MASK_CHANNEL;
return false;
modehandlers[pos] = mh;
- ServerInstance->Log(DEBUG,"ModeParser::AddMode: added mode %c",mh->GetModeChar());
return true;
}
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:
- for (user_hash::iterator i = ServerInstance->clientlist.begin(); i != ServerInstance->clientlist.end(); i++)
+ for (user_hash::iterator i = ServerInstance->Users->clientlist->begin(); i != ServerInstance->Users->clientlist->end(); i++)
{
mh->RemoveMode(i->second);
}
break;
case MODETYPE_CHANNEL:
- for (chan_hash::iterator i = ServerInstance->chanlist.begin(); i != ServerInstance->chanlist.end(); i++)
+ for (chan_hash::iterator i = ServerInstance->chanlist->begin(); i != ServerInstance->chanlist->end(); i++)
{
mh->RemoveMode(i->second);
}
return NULL;
}
-std::string ModeParser::ModeString(userrec* user, chanrec* channel)
+std::string ModeParser::ModeString(User* user, Channel* channel, bool nick_suffix)
{
std::string types;
std::string pars;
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 */
for (unsigned char mode = 'A'; mode <= 'z'; mode++)
{
- 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(const prefixtype one, const prefixtype two)
-{
- return one.second > two.second;
-}
-
std::string ModeParser::BuildPrefixes()
{
- std::string mletters = "";
- std::string mprefixes = "";
- pfxcontainer pfx;
- std::map<char,char> prefix_to_mode;
+ std::string mletters;
+ std::string mprefixes;
+ std::map<int,std::pair<char,char> > prefixes;
for (unsigned char mode = 'A'; mode <= 'z'; mode++)
{
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;
pos = (mw->GetModeChar()-65) | mask;
modewatchers[pos].push_back(mw);
- ServerInstance->Log(DEBUG,"ModeParser::AddModeWatcher: watching mode %c",mw->GetModeChar());
return true;
}
if (a == modewatchers[pos].end())
{
- ServerInstance->Log(DEBUG, "ModeParser::DelModeWatcher: Couldn't find watcher for mode %c in list", mw->GetModeChar());
return false;
}
modewatchers[pos].erase(a);
- ServerInstance->Log(DEBUG,"ModeParser::DelModeWatcher: stopped watching mode %c",mw->GetModeChar());
return true;
}
/** This default implementation can remove simple user modes
*/
-void ModeHandler::RemoveMode(userrec* 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);
+ }
}
}
/** This default implementation can remove simple channel modes
* (no parameters)
*/
-void ModeHandler::RemoveMode(chanrec* 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()))
{
- userrec* n = new userrec(ServerInstance);
-
- sprintf(moderemove,"-%c",this->GetModeChar());
- n->SetFd(FD_MAGIC_NUMBER);
-
- ServerInstance->SendMode(parameters, 2, n);
-
- delete n;
+ 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);
+ }
}
}
-ModeParser::ModeParser(InspIRCd* Instance) : ServerInstance(Instance)
+ModeParser::ModeParser()
{
- /* Clear mode list */
+ ModeHandler* modes[] =
+ {
+ new ModeChannelSecret,
+ new ModeChannelPrivate,
+ new ModeChannelModerated,
+ new ModeChannelTopicOps,
+
+ new ModeChannelNoExternal,
+ new ModeChannelInviteOnly,
+ new ModeChannelKey,
+ new ModeChannelLimit,
+
+ new ModeChannelBan,
+ new ModeChannelOp,
+ new ModeChannelHalfOp,
+ new ModeChannelVoice,
+
+ new ModeUserWallops,
+ new ModeUserInvisible,
+ new ModeUserOperator,
+ new ModeUserServerNoticeMask,
+#define BUILTIN_MODE_COUNT 16
+ };
+
+ /* Clear mode handler list */
memset(modehandlers, 0, sizeof(modehandlers));
- memset(modewatchers, 0, sizeof(modewatchers));
/* Last parse string */
- LastParse = "";
+ LastParse.clear();
/* Initialise the RFC mode letters */
+ for (int index = 0; index < BUILTIN_MODE_COUNT; index++)
+ this->AddMode(modes[index]);
- /* Start with channel simple modes, no params */
- this->AddMode(new ModeChannelSecret(Instance), 's');
- this->AddMode(new ModeChannelPrivate(Instance), 'p');
- this->AddMode(new ModeChannelModerated(Instance), 'm');
- this->AddMode(new ModeChannelTopicOps(Instance), 't');
- this->AddMode(new ModeChannelNoExternal(Instance), 'n');
- this->AddMode(new ModeChannelInviteOnly(Instance), 'i');
-
- /* Cannel modes with params */
- this->AddMode(new ModeChannelKey(Instance), 'k');
- this->AddMode(new ModeChannelLimit(Instance), 'l');
-
- /* Channel listmodes */
- this->AddMode(new ModeChannelBan(Instance), 'b');
- this->AddMode(new ModeChannelOp(Instance), 'o');
- this->AddMode(new ModeChannelHalfOp(Instance), 'h');
- this->AddMode(new ModeChannelVoice(Instance), 'v');
-
- /* Now for usermodes */
- this->AddMode(new ModeUserServerNotice(Instance), 's');
- this->AddMode(new ModeUserWallops(Instance), 'w');
- this->AddMode(new ModeUserInvisible(Instance), 'i');
- this->AddMode(new ModeUserOperator(Instance), 'o');
- this->AddMode(new ModeUserServerNoticeMask(Instance), 'n');
+ seq = 0;
+ memset(&sent, 0, sizeof(sent));
+}
+
+ModeParser::~ModeParser()
+{
+ int count = 0;
+ for(int i=0; i < 256; i++)
+ {
+ ModeHandler* mh = modehandlers[i];
+ if (mh)
+ {
+ count++;
+ delete mh;
+ }
+ }
+ if (count != BUILTIN_MODE_COUNT)
+ throw CoreException("Mode handler found non-core modes remaining at deallocation");
}
projects / user / henk / code / inspircd.git / blobdiff