X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fmodules%2Fm_codepage.cpp;h=45fdb3d834ae02e2b312c2c5b68403cdba7a3dbd;hb=c7b938502295ddc5b2c89e0854d8c5c19ede32dc;hp=9fd012ffe80ab118f064fdf5ada264622c2695c4;hpb=34e33342d548f3ecaff791f526786b39318b7437;p=user%2Fhenk%2Fcode%2Finspircd.git

diff --git a/src/modules/m_codepage.cpp b/src/modules/m_codepage.cpp
index 9fd012ffe..45fdb3d83 100644
--- a/src/modules/m_codepage.cpp
+++ b/src/modules/m_codepage.cpp
@@ -2,7 +2,6 @@
  * InspIRCd -- Internet Relay Chat Daemon
  *
  *   Copyright (C) 2020 Sadie Powell <sadie@witchery.services>
- *   Copyright (C) 2014 Googolplexed <googol@googolplexed.net>
  *
  * 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
@@ -77,6 +76,21 @@ class ModuleCodepage
 		hashmap.swap(newhash);
 	}
 
+	void CheckDuplicateNick()
+	{
+		insp::flat_set<std::string, irc::insensitive_swo> duplicates;
+		const UserManager::LocalList& list = ServerInstance->Users.GetLocalUsers();
+		for (UserManager::LocalList::const_iterator iter = list.begin(); iter != list.end(); ++iter)
+		{
+			LocalUser* user = *iter;
+			if (user->nick != user->uuid && !duplicates.insert(user->nick).second)
+			{
+				user->WriteNumeric(RPL_SAVENICK, user->uuid, "Your nickname is no longer available.");
+				user->ChangeNick(user->uuid);
+			}
+		}
+	}
+
 	void CheckInvalidNick()
 	{
 		const UserManager::LocalList& list = ServerInstance->Users.GetLocalUsers();
@@ -84,7 +98,10 @@ class ModuleCodepage
 		{
 			LocalUser* user = *iter;
 			if (user->nick != user->uuid && !ServerInstance->IsNick(user->nick))
+			{
+				user->WriteNumeric(RPL_SAVENICK, user->uuid, "Your nickname is no longer valid.");
 				user->ChangeNick(user->uuid);
+			}
 		}
 	}
 
@@ -113,6 +130,7 @@ class ModuleCodepage
 
 		ServerInstance->Config->CaseMapping = origcasemapname;
 		national_case_insensitive_map = origcasemap;
+		CheckDuplicateNick();
 		CheckRehash(casemap);
 
 		ServerInstance->ISupport.Build();
@@ -134,7 +152,7 @@ class ModuleCodepage
 			unsigned char begin = tag->getUInt("begin", tag->getUInt("index", 0), 1, UCHAR_MAX);
 			if (!begin)
 				throw ModuleException("<cpchars> tag without index or begin specified at " + tag->getTagLocation());
-	
+
 			unsigned char end = tag->getUInt("end", begin, 1, UCHAR_MAX);
 			if (begin > end)
 				throw ModuleException("<cpchars:begin> must be lower than <cpchars:end> at " + tag->getTagLocation());
@@ -215,7 +233,7 @@ class ModuleCodepage
 			if (casemap[i] != i)
 				linkdata << static_cast<unsigned char>(i) << casemap[i] << ',';
 
-		return Version("Provides support for custom 8-bit codepages", VF_COMMON | VF_VENDOR, linkdata.str());
+		return Version("Allows the server administrator to define what characters are allowed in nicknames and how characters should be compared in a case insensitive way.", VF_COMMON | VF_VENDOR, linkdata.str());
 	}
 };
 MODULE_INIT(ModuleCodepage)