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reverseproxy: query escape request urls when proxy protocol is enabled (#7537)

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WeidiDeng 2026-03-02 15:04:06 +08:00 • committed by GitHub
parent f145bce553
commit 2ab043b890
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1 changed files with 6 additions and 1 deletions
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7
modules/caddyhttp/reverseproxy/reverseproxy.go
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@ -1278,7 +1278,12 @@ func (h *Handler) directRequest(req *http.Request, di DialInfo) {
// add client address to the host to let transport differentiate requests from different clients
if ppt, ok := h.Transport.(ProxyProtocolTransport); ok && ppt.ProxyProtocolEnabled() {
if proxyProtocolInfo, ok := caddyhttp.GetVar(req.Context(), proxyProtocolInfoVarKey).(ProxyProtocolInfo); ok {
reqHost = proxyProtocolInfo.AddrPort.String() + "->" + reqHost
// encode the request so it plays well with h2 transport, it's unnecessary for h1 but anyway
// The issue is that h2 transport will use the address to determine if new connections are needed
// to roundtrip requests but the without escaping, new connections are constantly created and closed until
// file descriptors are exhausted.
// see: https://github.com/caddyserver/caddy/issues/7529
reqHost = url.QueryEscape(proxyProtocolInfo.AddrPort.String() + "->" + reqHost)
}
}