1 files changed, 126 insertions, 0 deletions
diff --git a/src/modes/cmode_b.cpp b/src/modes/cmode_b.cpp
new file mode 100644
index 000000000..1e8af4d8a
--- /dev/null
+++ b/src/modes/cmode_b.cpp
@@ -0,0 +1,126 @@
+#include "inspircd.h"
+#include "mode.h"
+#include "channels.h"
+#include "users.h"
+#include "helperfuncs.h"
+#include "modes/cmode_b.h"
+
+extern InspIRCd* ServerInstance;
+
+ModeChannelPrivate::ModeChannelBan() : ModeHandler('b', 1, 1, true, MODETYPE_CHANNEL, false)
+{
+}
+
+ModeAction ModeChannelBan::OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string &parameter, bool adding)
+{
+	int status = cstatus(user, chan);
+	adding ? parameter = this->AddBan(user, parameter, channel, status) : parameter = this->DelBan(user, parameter, channel, status);
+	return MODEACTION_ALLOW;
+}
+
+std::string& ChannelModeBan::AddBan(userrec *user,std::string &dest,chanrec *chan,int status)
+{
+        BanItem b;
+        int toomanyexclamation = 0;
+        int toomanyat = 0;
+
+        if ((!user) || (!chan))
+        {
+                log(DEFAULT,"*** BUG *** AddBan was given an invalid parameter");
+                return NULL;
+        }
+
+        for (std::string::iterator i = dest.begin(); i != dest.end(); i++)
+        {
+                if ((*i < 32) || (*i > 126))
+                {
+			dest = "";
+                        return dest;
+                }
+                else if (*i == '!')
+                {
+                        toomanyexclamation++;
+                }
+                else if (*i == '@')
+                {
+                        toomanyat++;
+                }
+        }
+
+        if (toomanyexclamation != 1 || toomanyat != 1)
+	{
+                /*
+                 * this stops sillyness like n!u!u!u@h, though note that most
+                 * ircds don't actually verify banmask validity. --w00t
+                 */
+		dest = "";
+                return dest;
+	}
+
+        long maxbans = GetMaxBans(chan->name);
+        if ((unsigned)chan->bans.size() > (unsigned)maxbans)
+        {
+                WriteServ(user->fd,"478 %s %s :Channel ban list for %s is full (maximum entries for this channel is %d)",user->nick, chan->name,chan->name,maxbans);
+		dest = "";
+                return dest;
+        }
+
+        log(DEBUG,"AddBan: %s %s",chan->name,user->nick);
+
+        int MOD_RESULT = 0;
+        FOREACH_RESULT(I_OnAddBan,OnAddBan(user,chan,dest));
+        if (MOD_RESULT)
+	{
+		dest = "";
+                return dest;
+	}
+
+        TidyBan(dest);
+        for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
+        {
+                if (!strcasecmp(i->data,dest))
+                {
+                        // dont allow a user to set the same ban twice
+			dest = "";
+                        return dest;
+                }
+        }
+
+        b.set_time = TIME;
+        strlcpy(b.data,dest,MAXBUF);
+        if (*user->nick)
+        {
+                strlcpy(b.set_by,user->nick,NICKMAX-1);
+        }
+        else
+        {
+                strlcpy(b.set_by,Config->ServerName,NICKMAX-1);
+        }
+        chan->bans.push_back(b);
+        return dest;
+}
+
+std::string& ChannelModeBan::DelBan(userrec *user,std::string& dest,chanrec *chan,int status)
+{
+        if ((!user) || (!chan)) {
+                log(DEFAULT,"*** BUG *** TakeBan was given an invalid parameter");
+                return 0;
+        }
+
+        log(DEBUG,"del_ban: %s %s",chan->name,user->nick);
+        for (BanList::iterator i = chan->bans.begin(); i != chan->bans.end(); i++)
+        {
+                if (!strcasecmp(i->data,dest.c_str()))
+                {
+                        int MOD_RESULT = 0;
+                        FOREACH_RESULT(I_OnDelBan,OnDelBan(user,chan,dest));
+                        if (MOD_RESULT)
+                                return NULL;
+                        chan->bans.erase(i);
+                        return dest;
+                }
+        }
+	dest = "";
+        return dest;
+}
+