4574e77f43
This change modifies extb_channel to allow matching users in secret channels, which prevents trivial ban evasion by setting the target channel +s. Information leak due to this change is unlikely since the attacker would have to know that the target channel exists, the name of the channel (or guess it), have a specific user they wanted to know whether was in the channel (and not know already), and the target user would need to have something like autojoin-on-invite enabled (or any of the other various ways hostname cloaking is attacked). |
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