Added ExtBan U to match only Unregistered users

Enhancement requested in Issue #247

4 files changed, 30 insertions, 5 deletions

diff --git a/docs/conf/inspircd.helpop-full.example b/docs/conf/inspircd.helpop-full.example
index 9c4ae0b92..c4936eea6 100644
--- a/docs/conf/inspircd.helpop-full.example
+++ b/docs/conf/inspircd.helpop-full.example
@@ -1050,6 +1050,8 @@ Acting extbans:
                users (requires stripcolor module).
  T:<ban>       Blocks notices from matching users (requires nonotice
                module).
+ U:<ban>       Blocks unregistered users matching the given ban.
+               (requires m_services_account)
 
 A ban given to an acting extban may either be a nick!user@host mask,
 matched against users as for a normal ban, or a matching extban.
diff --git a/docs/conf/inspircd.helpop.example b/docs/conf/inspircd.helpop.example
index 4b3354837..2ba4ac5a1 100644
--- a/docs/conf/inspircd.helpop.example
+++ b/docs/conf/inspircd.helpop.example
@@ -288,6 +288,8 @@ help channel if you have any questions.">
               users (requires stripcolor module).
  T:n!u@h      Blocks notices from matching users (requires nonotice
               module).
+ U:n!u@h      Blocks unregistered users matching the given ban.
+              (requires m_services_account)
 
  Redirect     n!u@h#channel will redirect the banned user to #channel
               when they try to join (requires banredirect module).
diff --git a/docs/conf/modules.conf.example b/docs/conf/modules.conf.example
index f86ebfa6c..9d9b61b93 100644
--- a/docs/conf/modules.conf.example
+++ b/docs/conf/modules.conf.example
@@ -1530,9 +1530,10 @@
 #
 # This replaces m_services from 1.1 and earlier.
 #
-# Also of note is that this module implements two extbans:
+# Also of note is that this module implements three extbans:
 # +b R: (stop matching account names from joining)
 # +b M: (stop matching account names from speaking)
+# +b U:n!u@h (blocks matching unregistered users)
 #                                                                       
 #<module name="m_services_account.so">
 
diff --git a/src/modules/m_services_account.cpp b/src/modules/m_services_account.cpp
index cd34e955a..57a08ada4 100644
--- a/src/modules/m_services_account.cpp
+++ b/src/modules/m_services_account.cpp
@@ -1,6 +1,7 @@
 /*
  * InspIRCd -- Internet Relay Chat Daemon
  *
+ *   Copyright (C) 2012 Shawn Smith <shawn@inspircd.org>
  *   Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
  *   Copyright (C) 2006-2008 Robin Burchell <robin+git@viroteck.net>
  *   Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
@@ -137,6 +138,7 @@ class ModuleServicesAccount : public Module
 	void On005Numeric(std::string &t)
 	{
 		ServerInstance->AddExtBanChar('R');
+		ServerInstance->AddExtBanChar('U');
 	}
 
 	/* <- :twisted.oscnet.org 330 w00t2 w00t2 w00t :is logged in as */
@@ -210,12 +212,30 @@ class ModuleServicesAccount : public Module
 
 	ModResult OnCheckBan(User* user, Channel* chan, const std::string& mask)
 	{
-		if (mask[0] == 'R' && mask[1] == ':')
+		if (mask[1] == ':')
 		{
-			std::string *account = accountname.get(user);
-			if (account && InspIRCd::Match(*account, mask.substr(2)))
-				return MOD_RES_DENY;
+			if (mask[0] == 'R')
+			{
+				std::string *account = accountname.get(user);
+				if (account && InspIRCd::Match(*account, mask.substr(2)))
+					return MOD_RES_DENY;
+			}
+			else if (mask[0] == 'U')
+			{
+				std::string *account = accountname.get(user);
+				/* If the user is registered we don't care. */
+				if (account)
+					return MOD_RES_PASSTHRU;
+
+				/* If we made it this far we know the user isn't registered
+					so just deny if it matches */
+				if (chan->GetExtBanStatus(user, 'U') == MOD_RES_DENY)
+					return MOD_RES_DENY;
+			}
 		}
+
+		/* If we made it this far then the ban wasn't an ExtBan
+			or the user we were checking for didn't match either ExtBan */
 		return MOD_RES_PASSTHRU;
 	}