]> git.netwichtig.de Git - user/henk/code/inspircd.git/blobdiff - src/modules/m_delayjoin.cpp
Merge pull request #1162 from SaberUK/insp20+fix-deinstall
[user/henk/code/inspircd.git] / src / modules / m_delayjoin.cpp
index 286cef59be88587e29ca52302f197546ced449d8..20d4c8e8faeeed905350aac88dfc2eb79c90b511 100644 (file)
-/*       +------------------------------------+
- *       | Inspire Internet Relay Chat Daemon |
- *       +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
  *
- *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
- * See: http://www.inspircd.org/wiki/index.php/Credits
+ *   Copyright (C) 2010 Jens Voss <DukePyrolator@anope.org>
+ *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ *   Copyright (C) 2008 Robin Burchell <robin+git@viroteck.net>
+ *   Copyright (C) 2007-2008 Craig Edwards <craigedwards@brainbox.cc>
  *
- * This program is free but copyrighted software; see
- *         the file COPYING for details.
+ * This file is part of InspIRCd.  InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
  *
- * ---------------------------------------------------
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+
+/* $ModDesc: Allows for delay-join channels (+D) where users don't appear to join until they speak */
+
 #include "inspircd.h"
 #include <stdarg.h>
 
-/* $ModDesc: Allows for delay-join channels (+D) where users dont appear to join until they speak */
-
 class DelayJoinMode : public ModeHandler
 {
+ private:
        CUList empty;
-       Module* Creator;
  public:
-       DelayJoinMode(InspIRCd* Instance, Module* Parent) : ModeHandler(Instance, 'D', 0, 0, false, MODETYPE_CHANNEL, false), Creator(Parent) { }
-
-       ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
+       DelayJoinMode(Module* Parent) : ModeHandler(Parent, "delayjoin", 'D', PARAM_NONE, MODETYPE_CHANNEL)
        {
-               if (channel->IsModeSet('D') != adding)
-               {
-                       if (IS_LOCAL(source) && (channel->GetStatus(source) < STATUS_OP))
-                       {
-                               source->WriteServ("482 %s %s :Only channel operators may %sset channel mode +D", source->nick, channel->name, adding ? "" : "un");
-                               return MODEACTION_DENY;
-                       }
-                       else
-                       {
-                               if (channel->IsModeSet('D'))
-                               {
-                                       /* Make all delayed join users visible, or if an op removes +D
-                                        * while users exist that havent spoken, they remain permenantly
-                                        * invisible on this channel!
-                                        */
-                                       CUList* names = channel->GetUsers();
-                                       for (CUListIter n = names->begin(); n != names->end(); ++n)
-                                               Creator->OnText(n->first, channel, TYPE_CHANNEL, "", 0, empty);
-                               }
-                               channel->SetMode('D', adding);
-                               return MODEACTION_ALLOW;
-                       }
-               }
-               else
-               {
-                       return MODEACTION_DENY;
-               }
+               levelrequired = OP_VALUE;
        }
+
+       ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding);
 };
 
 class ModuleDelayJoin : public Module
 {
- private:
-       DelayJoinMode* djm;
-       CUList nl;
+       DelayJoinMode djm;
  public:
-       ModuleDelayJoin(InspIRCd* Me)
-               : Module(Me)
+       LocalIntExt unjoined;
+       ModuleDelayJoin() : djm(this), unjoined("delayjoin", this)
        {
-               djm = new DelayJoinMode(ServerInstance, this);
-               if (!ServerInstance->AddMode(djm))
-                       throw ModuleException("Could not add new modes!");
-       }
-       
-       virtual ~ModuleDelayJoin()
-       {
-               ServerInstance->Modes->DelMode(djm);
-               DELETE(djm);
        }
 
-       Priority Prioritize()
+       void init()
        {
-               /* To ensure that we get priority over namesx for names list generation on +u channels */
-               return (Priority)ServerInstance->Modules->PriorityBefore("m_namesx.so");
+               ServerInstance->Modules->AddService(djm);
+               ServerInstance->Modules->AddService(unjoined);
+               Implementation eventlist[] = { I_OnUserJoin, I_OnUserPart, I_OnUserKick, I_OnBuildNeighborList, I_OnNamesListItem, I_OnText, I_OnRawMode };
+               ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
        }
+       ~ModuleDelayJoin();
+       Version GetVersion();
+       void OnNamesListItem(User* issuer, Membership*, std::string &prefixes, std::string &nick);
+       void OnUserJoin(Membership*, bool, bool, CUList&);
+       void CleanUser(User* user);
+       void OnUserPart(Membership*, std::string &partmessage, CUList&);
+       void OnUserKick(User* source, Membership*, const std::string &reason, CUList&);
+       void OnBuildNeighborList(User* source, UserChanList &include, std::map<User*,bool> &exception);
+       void OnText(User* user, void* dest, int target_type, const std::string &text, char status, CUList &exempt_list);
+       ModResult OnRawMode(User* user, Channel* channel, const char mode, const std::string &param, bool adding, int pcnt);
+};
 
-       virtual Version GetVersion()
-       {
-               return Version(1, 1, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION);
-       }
+ModeAction DelayJoinMode::OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
+{
+       /* no change */
+       if (channel->IsModeSet('D') == adding)
+               return MODEACTION_DENY;
 
-       void Implements(char* List)
+       if (!adding)
        {
-               List[I_OnUserJoin] = List[I_OnUserPart] = List[I_OnUserKick] = List[I_OnUserQuit] = List[I_OnUserList] = List[I_OnText] = 1;
+               /*
+                * Make all users visible, as +D is being removed. If we don't do this,
+                * they remain permanently invisible on this channel!
+                */
+               const UserMembList* names = channel->GetUsers();
+               for (UserMembCIter n = names->begin(); n != names->end(); ++n)
+                       creator->OnText(n->first, channel, TYPE_CHANNEL, "", 0, empty);
        }
+       channel->SetMode('D', adding);
+       return MODEACTION_ALLOW;
+}
 
-       virtual int OnUserList(User* user, Channel* Ptr, CUList* &nameslist)
-       {
-               CUList* newlist = nameslist ? nameslist : Ptr->GetUsers();
-
-               nl.clear();
-
-               /* For +D channels ... */
-               if (Ptr->IsModeSet('D'))
-               {
-                       std::string key("delayjoin_");
-                       key.append(Ptr->name);
-
-                       /* Modify the names list, erasing users with the delay join metadata
-                        * for this channel (havent spoken yet)
-                        */
-                       for (CUListIter n = newlist->begin(); n != newlist->end(); ++n)
-                       {
-                               if (!n->first->GetExt(key))
-                                       nl.insert(*n);
-                       }
-
-                       /* Always show self */
-                       nl[user] = user->nick;
-                       nameslist = &nl;
-               }
-               return 0;
-       }
+ModuleDelayJoin::~ModuleDelayJoin()
+{
+}
 
-       virtual void OnUserJoin(User* user, Channel* channel, bool &silent)
-       {
-               if (channel->IsModeSet('D'))
-               {
-                       silent = true;
-                       /* Because we silenced the event, make sure it reaches the user whos joining (but only them of course) */
-                       user->WriteFrom(user, "JOIN %s", channel->name);
-
-                       /* This metadata tells the module the user is delayed join on this specific channel */
-                       user->Extend(std::string("delayjoin_")+channel->name);
-
-                       /* This metadata tells the module the user is delayed join on at least one (or more) channels.
-                        * It is only cleared when the user is no longer on ANY +D channels.
-                        */
-                       if (!user->GetExt("delayjoin"))
-                               user->Extend("delayjoin");
-               }
-       }
+Version ModuleDelayJoin::GetVersion()
+{
+       return Version("Allows for delay-join channels (+D) where users don't appear to join until they speak", VF_VENDOR);
+}
 
-       void OnUserPart(User* user, Channel* channel, const std::string &partmessage, bool &silent)
+void ModuleDelayJoin::OnNamesListItem(User* issuer, Membership* memb, std::string &prefixes, std::string &nick)
+{
+       /* don't prevent the user from seeing themself */
+       if (issuer == memb->user)
+               return;
+
+       /* If the user is hidden by delayed join, hide them from the NAMES list */
+       if (unjoined.get(memb))
+               nick.clear();
+}
+
+static void populate(CUList& except, Membership* memb)
+{
+       const UserMembList* users = memb->chan->GetUsers();
+       for(UserMembCIter i = users->begin(); i != users->end(); i++)
        {
-               if (channel->IsModeSet('D'))
-               {
-                       if (user->GetExt(std::string("delayjoin_")+channel->name))
-                       {
-                               silent = true;
-                               /* Because we silenced the event, make sure it reaches the user whos leaving (but only them of course) */
-                               user->WriteFrom(user, "PART %s%s%s", channel->name, partmessage.empty() ? "" : " :", partmessage.empty() ? "" : partmessage.c_str());
-                       }
-               }
+               if (i->first == memb->user || !IS_LOCAL(i->first))
+                       continue;
+               except.insert(i->first);
        }
+}
 
-       void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent)
+void ModuleDelayJoin::OnUserJoin(Membership* memb, bool sync, bool created, CUList& except)
+{
+       if (memb->chan->IsModeSet('D'))
        {
-               if (chan->IsModeSet('D'))
-               {
-                       /* Send silenced event only to the user being kicked and the user doing the kick */
-                       if (user->GetExt(std::string("delayjoin_")+chan->name))
-                       {
-                               silent = true;
-                               user->WriteFrom(source, "KICK %s %s %s", chan->name, user->nick, reason.c_str());
-                       }
-               }
+               unjoined.set(memb, 1);
+               populate(except, memb);
        }
+}
+
+void ModuleDelayJoin::OnUserPart(Membership* memb, std::string &partmessage, CUList& except)
+{
+       if (unjoined.set(memb, 0))
+               populate(except, memb);
+}
 
-       void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
+void ModuleDelayJoin::OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& except)
+{
+       if (unjoined.set(memb, 0))
+               populate(except, memb);
+}
+
+void ModuleDelayJoin::OnBuildNeighborList(User* source, UserChanList &include, std::map<User*,bool> &exception)
+{
+       UCListIter i = include.begin();
+       while (i != include.end())
        {
-               Command* parthandler = ServerInstance->Parser->GetHandler("PART");
-               const char* parameters[2];
-               if (parthandler && user->GetExt("delayjoin"))
-               {
-                       for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
-                       {
-                               parameters[0] = f->first->name;
-                               /* This triggers our OnUserPart, above, making the PART silent */
-                               parthandler->Handle(parameters, 1, user);
-                       }
-               }
+               Channel* c = *i++;
+               Membership* memb = c->GetUser(source);
+               if (memb && unjoined.get(memb))
+                       include.erase(c);
        }
+}
 
-       void OnText(User* user, void* dest, int target_type, const std::string &text, char status, CUList &exempt_list)
-       {
-               if (target_type != TYPE_CHANNEL)
-                       return;
+void ModuleDelayJoin::OnText(User* user, void* dest, int target_type, const std::string &text, char status, CUList &exempt_list)
+{
+       /* Server origin */
+       if (!user)
+               return;
 
-               Channel* channel = (Channel*) dest;
+       if (target_type != TYPE_CHANNEL)
+               return;
 
-               if (!user->GetExt(std::string("delayjoin_")+channel->name))
-                       return;
+       Channel* channel = static_cast<Channel*>(dest);
 
-               /* Display the join to everyone else (the user who joined got it earlier) */
-               this->WriteCommonFrom(user, channel, "JOIN %s", channel->name);
+       Membership* memb = channel->GetUser(user);
+       if (!memb || !unjoined.set(memb, 0))
+               return;
 
-               /* Shrink off the neccessary metadata for a specific channel */
-               user->Shrink(std::string("delayjoin_")+channel->name);
+       /* Display the join to everyone else (the user who joined got it earlier) */
+       channel->WriteAllExceptSender(user, false, 0, "JOIN %s", channel->name.c_str());
 
-               /* Check if the user is left on any other +D channels, if so don't take away the
-                * metadata that says theyre on one or more channels 
-                */
-               for (UCListIter f = user->chans.begin(); f != user->chans.end(); f++)
-                       if (f->first->IsModeSet('D'))
-                               return;
+       std::string ms = memb->modes;
+       for(unsigned int i=0; i < memb->modes.length(); i++)
+               ms.append(" ").append(user->nick);
 
-               user->Shrink("delayjoin");
-       }
+       if (ms.length() > 0)
+               channel->WriteAllExceptSender(user, false, 0, "MODE %s +%s", channel->name.c_str(), ms.c_str());
+}
 
-       void WriteCommonFrom(User *user, Channel* channel, const char* text, ...)
-       {
-               va_list argsPtr;
-               char textbuffer[MAXBUF];
-               char tb[MAXBUF];
-
-               va_start(argsPtr, text);
-               vsnprintf(textbuffer, MAXBUF, text, argsPtr);
-               va_end(argsPtr);
-               snprintf(tb,MAXBUF,":%s %s",user->GetFullHost(),textbuffer);
-
-               CUList *ulist = channel->GetUsers();
-
-               for (CUList::iterator i = ulist->begin(); i != ulist->end(); i++)
-               {
-                       /* User only appears to vanish for non-opers */
-                       if (user->Visibility && !user->Visibility->VisibleTo(i->first))
-                       {
-                               i->first->Write(std::string(tb));
-                       }
-               }
-       }
+/* make the user visible if he receives any mode change */
+ModResult ModuleDelayJoin::OnRawMode(User* user, Channel* channel, const char mode, const std::string &param, bool adding, int pcnt)
+{
+       if (!user || !channel || param.empty())
+               return MOD_RES_PASSTHRU;
 
-};
+       ModeHandler* mh = ServerInstance->Modes->FindMode(mode, MODETYPE_CHANNEL);
+       // If not a prefix mode then we got nothing to do here
+       if (!mh || !mh->GetPrefixRank())
+               return MOD_RES_PASSTHRU;
 
-MODULE_INIT(ModuleDelayJoin)
+       User* dest;
+       if (IS_LOCAL(user))
+               dest = ServerInstance->FindNickOnly(param);
+       else
+               dest = ServerInstance->FindNick(param);
+
+       if (!dest)
+               return MOD_RES_PASSTHRU;
 
+       Membership* memb = channel->GetUser(dest);
+       if (memb && unjoined.set(memb, 0))
+               channel->WriteAllExceptSender(dest, false, 0, "JOIN %s", channel->name.c_str());
+       return MOD_RES_PASSTHRU;
+}
+
+MODULE_INIT(ModuleDelayJoin)