From 29fd51d6f76a639fbd909e7bf7489eb92e9f90db Mon Sep 17 00:00:00 2001
From: brain <brain@e03df62e-2008-0410-955e-edbf42e46eb7>
Date: Sat, 2 Sep 2006 14:09:45 +0000
Subject: [PATCH] Add chanrec::IsBanned() so that we dont have to keep walking
 the banlist in various modules and using match()

git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@5099 e03df62e-2008-0410-955e-edbf42e46eb7
---
 include/channels.h          |  6 ++++++
 src/channels.cpp            | 32 ++++++++++++++++++++++----------
 src/modules/m_override.cpp  | 13 ++++---------
 src/modules/m_timedbans.cpp |  9 +++------
 4 files changed, 35 insertions(+), 25 deletions(-)

diff --git a/include/channels.h b/include/channels.h
index 14e06d40f..d0d221550 100644
--- a/include/channels.h
+++ b/include/channels.h
@@ -527,6 +527,12 @@ class chanrec : public Extensible
 	 */
 	void SetPrefix(userrec* user, char prefix, unsigned int prefix_rank, bool adding);
 
+	/** Check if a user is banned on this channel
+	 * @param user A user to check against the banlist
+	 * @returns True if the user given is banned
+	 */
+	bool IsBanned(userrec* user);
+
 	/** Destructor for chanrec
 	 */
 	virtual ~chanrec() { /* stub */ }
diff --git a/src/channels.cpp b/src/channels.cpp
index 5c3bb266f..dab518844 100644
--- a/src/channels.cpp
+++ b/src/channels.cpp
@@ -318,17 +318,10 @@ chanrec* chanrec::JoinUser(InspIRCd* Instance, userrec *user, const char* cn, bo
 					sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
 					if (!MOD_RESULT)
 					{
-						for (BanList::iterator i = Ptr->bans.begin(); i != Ptr->bans.end(); i++)
+						if (Ptr->IsBanned(user))
 						{
-							/* This allows CIDR ban matching
-							 * 
-							 *	  Full masked host			Full unmasked host		     IP with/without CIDR
-							 */
-							if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
-							{
-								user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
-								return NULL;
-							}
+							user->WriteServ("474 %s %s :Cannot join channel (You're banned)",user->nick, Ptr->name);
+							return NULL;
 						}
 					}
 				}
@@ -442,6 +435,25 @@ chanrec* chanrec::ForceChan(InspIRCd* Instance, chanrec* Ptr,ucrec *a,userrec* u
 	return Ptr;
 }
 
+bool chanrec::IsBanned(userrec* user)
+{
+	char mask[MAXBUF];
+	sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
+	for (BanList::iterator i = this->bans.begin(); i != this->bans.end(); i++)
+	{
+		/* This allows CIDR ban matching
+		 * 
+		 *        Full masked host                      Full unmasked host                   IP with/without CIDR
+		 */
+		if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
+		{
+			return true;
+		}
+
+	}
+	return false;
+}
+
 /* chanrec::PartUser
  * remove a channel from a users record, and remove the record from the hash
  * if the channel has become empty
diff --git a/src/modules/m_override.cpp b/src/modules/m_override.cpp
index 342e42829..7dd58d8c2 100644
--- a/src/modules/m_override.cpp
+++ b/src/modules/m_override.cpp
@@ -231,17 +231,12 @@ class ModuleOverride : public Module
 
 				if (CanOverride(user,"BANWALK"))
 				{
-					for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
+					if (chan->IsBanned(user))
 					{
-						char mask[MAXBUF];
-						sprintf(mask,"%s!%s@%s",user->nick, user->ident, user->GetIPString());
-						if ((match(user->GetFullHost(),i->data)) || (match(user->GetFullRealHost(),i->data)) || (match(mask, i->data, true)))
+						if (NoisyOverride)
 						{
-							if (NoisyOverride)
-							{
-								chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper-override to bypass channel bans on %s", cname, user->nick,i->data);
-								ServerInstance->SNO->WriteToSnoMask('O',"%s used oper-override to bypass channel bans on %s", cname, user->nick, i->data);
-							}
+							chan->WriteChannelWithServ(ServerInstance->Config->ServerName, "NOTICE %s :%s used oper-override to bypass channel ban", cname, user->nick);
+							ServerInstance->SNO->WriteToSnoMask('O',"%s used oper-override to bypass channel ban", cname, user->nick);
 						}
 					}
 					return -1;
diff --git a/src/modules/m_timedbans.cpp b/src/modules/m_timedbans.cpp
index 8639aa7df..08da114a6 100644
--- a/src/modules/m_timedbans.cpp
+++ b/src/modules/m_timedbans.cpp
@@ -64,13 +64,10 @@ class cmd_tban : public command_t
 					user->WriteServ("NOTICE "+std::string(user->nick)+" :Invalid ban mask");
 					return;
 				}
-				for (BanList::iterator i = channel->bans.begin(); i != channel->bans.end(); i++)
+				if (channel->IsBanned(user))
 				{
-					if (!strcasecmp(i->data,parameters[2]))
-					{
-						user->WriteServ("NOTICE "+std::string(user->nick)+" :The ban "+std::string(parameters[2])+" is already on the banlist of "+std::string(parameters[0]));
-						return;
-					}
+					user->WriteServ("NOTICE "+std::string(user->nick)+" :The ban "+std::string(parameters[2])+" is already on the banlist of "+std::string(parameters[0]));
+					return;
 				}
 				TimedBan T;
 				std::string channelname = parameters[0];
-- 
2.39.5