Permanent channels, currently conflicts with blockcaps (+P) and is untested

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@8650 e03df62e-2008-0410-955e-edbf42e46eb7

3 files changed, 102 insertions, 3 deletions

diff --git a/src/channels.cpp b/src/channels.cpp
index 115afea52..c28ca23de 100644
--- a/src/channels.cpp
+++ b/src/channels.cpp
@@ -482,7 +482,11 @@ long Channel::PartUser(User *user, const char* reason)
 		/* kill the record */
 		if (iter != ServerInstance->chanlist->end())
 		{
-			FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
+			int MOD_RESULT = 0;
+			FOREACH_RESULT_I(ServerInstance,I_OnChannelPreDelete, OnChannelPreDelete(this));
+			if (MOD_RESULT == 1)
+				return 1; // delete halted by module
+			FOREACH_MOD(I_OnChannelDelete, OnChannelDelete(this));
 			ServerInstance->chanlist->erase(iter);
 		}
 		return 0;
@@ -528,7 +532,11 @@ long Channel::ServerKickUser(User* user, const char* reason, bool triggerevents)
 		/* kill the record */
 		if (iter != ServerInstance->chanlist->end())
 		{
-			FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
+			int MOD_RESULT = 0;
+			FOREACH_RESULT_I(ServerInstance,I_OnChannelPreDelete, OnChannelPreDelete(this));
+			if (MOD_RESULT == 1)
+				return 1; // delete halted by module
+			FOREACH_MOD(I_OnChannelDelete, OnChannelDelete(this));
 			ServerInstance->chanlist->erase(iter);
 		}
 		return 0;
@@ -606,7 +614,11 @@ long Channel::KickUser(User *src, User *user, const char* reason)
 		/* kill the record */
 		if (iter != ServerInstance->chanlist->end())
 		{
-			FOREACH_MOD(I_OnChannelDelete,OnChannelDelete(this));
+			int MOD_RESULT = 0;
+			FOREACH_RESULT_I(ServerInstance,I_OnChannelPreDelete, OnChannelPreDelete(this));
+			if (MOD_RESULT == 1)
+				return 1; // delete halted by module
+			FOREACH_MOD(I_OnChannelDelete, OnChannelDelete(this));
 			ServerInstance->chanlist->erase(iter);
 		}
 		return 0;
diff --git a/src/modules.cpp b/src/modules.cpp
index 0ee715b27..87fd393f8 100644
--- a/src/modules.cpp
+++ b/src/modules.cpp
@@ -180,6 +180,7 @@ void		Module::OnChangeName(User*, const std::string&) { }
 void		Module::OnAddLine(User*, XLine*) { }
 void		Module::OnDelLine(User*, XLine*) { }
 void 		Module::OnCleanup(int, void*) { }
+int		Module::OnChannelPreDelete(Channel*) { return 0; }
 void		Module::OnChannelDelete(Channel*) { }
 void		Module::OnSetAway(User*) { }
 void		Module::OnCancelAway(User*) { }
diff --git a/src/modules/m_permchannels.cpp b/src/modules/m_permchannels.cpp
new file mode 100644
index 000000000..857593d02
--- /dev/null
+++ b/src/modules/m_permchannels.cpp
@@ -0,0 +1,86 @@
+/*       +------------------------------------+
+ *       | Inspire Internet Relay Chat Daemon |
+ *       +------------------------------------+
+ *
+ *  InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ *            the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+
+/* $ModDesc: Provides support for channel mode +P to provide permanent channels */
+
+
+/** Handles the +P channel mode
+ */
+class PermChannel : public ModeHandler
+{
+ public:
+	PermChannel(InspIRCd* Instance) : ModeHandler(Instance, 'P', 0, 0, false, MODETYPE_CHANNEL, false) { }
+
+	ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string &parameter, bool adding)
+	{
+		if (adding)
+		{
+			if (!channel->IsModeSet('P'))
+			{
+				channel->SetMode('P',true);
+				return MODEACTION_ALLOW;
+			}
+		}
+		else
+		{
+			if (channel->IsModeSet('P'))
+			{
+				channel->SetMode('P',false);
+				return MODEACTION_ALLOW;
+			}
+		}
+
+		return MODEACTION_DENY;
+	}
+};
+
+class ModulePermanentChannels : public Module
+{
+	PermChannel *p;
+public:
+	
+	ModulePermanentChannels(InspIRCd* Me) : Module(Me)
+	{
+		p = new PermChannel(ServerInstance);
+		if (!ServerInstance->AddMode(p))
+		{
+			delete p;
+			throw ModuleException("Could not add new modes!");
+		}
+		Implementation eventlist[] = { I_OnChannelPreDelete };
+		ServerInstance->Modules->Attach(eventlist, this, 1);
+	}
+
+	virtual ~ModulePermanentChannels()
+	{
+		ServerInstance->Modes->DelMode(p);
+		delete p;
+	}
+
+	virtual Version GetVersion()
+	{
+		return Version(1,1,0,0,VF_COMMON|VF_VENDOR,API_VERSION);
+	}
+
+	virtual int OnChannelPreDelete(Channel *c)
+	{
+		if (c->IsModeSet('P'))
+			return 1;
+
+		return 0;
+	}
+};
+
+MODULE_INIT(ModulePermanentChannels)