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improvement: use SetIPFilter for local addrs

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Closes https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40271.
Supersedes https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/417.

This simplifies the code and (probably) removes the need for
`StripLocalAddresses`, although makes us more dependent on Pion.

Signed-off-by: Cecylia Bocovich <cohosh@torproject.org>
This commit is contained in:
WofWca 2024-11-25 01:43:29 +04:00 • committed by Cecylia Bocovich
parent 43799819a1
commit ae5bd52821
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6 changed files with 56 additions and 32 deletions
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5
common/util/util.go
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@ -74,6 +74,11 @@ func IsLocal(ip net.IP) bool {
}
// Removes local LAN address ICE candidates
//
// This is unused after https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/merge_requests/442,
// but come in handy later for https://gitlab.torproject.org/tpo/anti-censorship/pluggable-transports/snowflake/-/issues/40322
// Also this is exported, so let's not remove it at least until
// the next major release.
func StripLocalAddresses(str string) string {
var desc sdp.SessionDescription
err := desc.Unmarshal([]byte(str))