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Protect websocket against oversized messages.

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The maximum message size of 1MB is probably overkill, but SDP
can grow pretty large.  Thanks to Vinayak Mishra.
This commit is contained in:
Juliusz Chroboczek
2026-04-07 15:45:24 +02:00
parent 550c58ad85
commit 2b4952fcf1
1 changed files with 3 additions and 0 deletions
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rtpconn/webclient.go
+3
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@@ -832,11 +832,14 @@ func readMessage(conn *websocket.Conn, m *clientMessage) error {
return conn.ReadJSON(&m) return conn.ReadJSON(&m)
} }
const maxWSMessageSize = 1024 * 1024
const protocolVersion = "2" const protocolVersion = "2"
func StartClient(conn *websocket.Conn, addr net.Addr) (err error) { func StartClient(conn *websocket.Conn, addr net.Addr) (err error) {
var m clientMessage var m clientMessage
conn.SetReadLimit(maxWSMessageSize)
err = readMessage(conn, &m) err = readMessage(conn, &m)
if err != nil { if err != nil {
conn.Close() conn.Close()