Enable using m_customprefix to alter core prefix modes.

This replaces the devoice module which has now been removed. If you
want users to be able to devoice themselves then you can load the
customprefix module add the following config tag:

    <customprefix name="voice" depriv="yes">

If you wish to keep identical behaviour rather than allowing users
to use "MODE #YourChannel -v TheirNick" then you can load the alias
module and add the following config tag:

    <alias text="DEVOICE" format="#*" replace="MODE $2 -v $nick">

1 files changed, 29 insertions, 4 deletions

diff --git a/src/modules/m_customprefix.cpp b/src/modules/m_customprefix.cpp
index c8ebde5cc..61c50ec0c 100644
--- a/src/modules/m_customprefix.cpp
+++ b/src/modules/m_customprefix.cpp
@@ -28,10 +28,14 @@ class CustomPrefixMode : public PrefixMode
 		: PrefixMode(parent, Name, Letter, 0, Prefix)
 		, tag(Tag)
 	{
-		prefixrank = tag->getInt("rank", 0, 0, UINT_MAX);
-		ranktoset = tag->getInt("ranktoset", prefixrank, prefixrank, UINT_MAX);
-		ranktounset = tag->getInt("ranktounset", ranktoset, ranktoset, UINT_MAX);
-		selfremove = tag->getBool("depriv", true);
+		long rank = tag->getInt("rank", 0, 0, UINT_MAX);
+		long setrank = tag->getInt("ranktoset", prefixrank, rank, UINT_MAX);
+		long unsetrank = tag->getInt("ranktounset", setrank, setrank, UINT_MAX);
+		bool depriv = tag->getBool("depriv", true);
+		this->Update(rank, setrank, unsetrank, depriv);
+
+		ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Created the %s prefix: letter=%c prefix=%c rank=%u ranktoset=%u ranktounset=%i depriv=%d",
+			name.c_str(), GetModeChar(), GetPrefix(), GetPrefixRank(), GetLevelRequired(true), GetLevelRequired(false), CanSelfRemove());
 	}
 };
 
@@ -50,6 +54,27 @@ class ModuleCustomPrefix : public Module
 			if (name.empty())
 				throw ModuleException("<customprefix:name> must be specified at " + tag->getTagLocation());
 
+			if (tag->getBool("change"))
+			{
+				ModeHandler* mh = ServerInstance->Modes->FindMode(name, MODETYPE_CHANNEL);
+				if (!mh)
+					throw ModuleException("<customprefix:change> specified for a non-existent mode at " + tag->getTagLocation());
+
+				PrefixMode* pm = mh->IsPrefixMode();
+				if (!pm)
+					throw ModuleException("<customprefix:change> specified for a non-prefix mode at " + tag->getTagLocation());
+
+				long rank = tag->getInt("rank", pm->GetPrefixRank(), 0, UINT_MAX);
+				long setrank = tag->getInt("ranktoset", pm->GetLevelRequired(true), rank, UINT_MAX);
+				long unsetrank = tag->getInt("ranktounset", pm->GetLevelRequired(false), setrank, UINT_MAX);
+				bool depriv = tag->getBool("depriv", pm->CanSelfRemove());
+				pm->Update(rank, setrank, unsetrank, depriv);
+
+				ServerInstance->Logs->Log(MODNAME, LOG_DEBUG, "Changed the %s prefix: depriv=%u rank=%u ranktoset=%u ranktounset=%u",
+					pm->name.c_str(), pm->CanSelfRemove(), pm->GetPrefixRank(), pm->GetLevelRequired(true), pm->GetLevelRequired(false));
+				continue;
+			}
+
 			const std::string letter = tag->getString("letter");
 			if (letter.length() != 1)
 				throw ModuleException("<customprefix:letter> must be set to a mode character at " + tag->getTagLocation());