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dline: Prevent opers from banning themselves

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This commit is contained in:
Daniel Oaks 2016-11-05 21:44:49 +10:00
parent e973862944
commit f1e2c54fca
2 changed files with 23 additions and 2 deletions
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18
irc/dline.go
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@ -168,7 +168,7 @@ func (dm *DLineManager) CheckIP(addr net.IP) (isBanned bool, info *IPBanInfo) {
return false, nil
}
// DLINE [duration] <ip>/<net> [ON <server>] [reason [| oper reason]]
// DLINE [MYSELF] [duration] <ip>/<net> [ON <server>] [reason [| oper reason]]
func dlineHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
// check oper permissions
if !client.class.Capabilities["oper:local_ban"] {
@ -178,6 +178,14 @@ func dlineHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
currentArg := 0
// when setting a ban that covers the oper's current connection, we require them to say
// "DLINE MYSELF" so that we're sure they really mean it.
var dlineMyself bool
if len(msg.Params) > currentArg+1 && strings.ToLower(msg.Params[currentArg]) == "myself" {
dlineMyself = true
currentArg++
}
// duration
duration, err := time.ParseDuration(msg.Params[currentArg])
durationIsUsed := err == nil
@ -209,8 +217,16 @@ func dlineHandler(server *Server, client *Client, msg ircmsg.IrcMessage) bool {
if hostNet == nil {
hostString = hostAddr.String()
if !dlineMyself && hostAddr.Equal(net.ParseIP(IPString(client.socket.conn.RemoteAddr()))) {
client.Send(nil, server.name, ERR_UNKNOWNERROR, client.nick, msg.Command, "This ban matches you. To DLINE yourself, you must pass use the command: /DLINE MYSELF <arguments>")
return false
}
} else {
hostString = hostNet.String()
if !dlineMyself && hostNet.Contains(net.ParseIP(IPString(client.socket.conn.RemoteAddr()))) {
client.Send(nil, server.name, ERR_UNKNOWNERROR, client.nick, msg.Command, "This ban matches you. To DLINE yourself, you must pass use the command: /DLINE MYSELF <arguments>")
return false
}
}
// check remote