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Fix: use correct header to get the original request host

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Proxy servers can set the X-Forwarded-Host and X-Forwarded-Proto headers to pass on the original host and protocol.
We should also support the Forwarded header (which combines this in one header described in RFC7239 - but seems echo does not support parsing that one?)
This commit is contained in:
bumi 2022-05-06 20:30:35 +02:00
parent bdd3b70e1f
commit 5d2c9cd639
1 changed files with 8 additions and 3 deletions
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11
lnme.go
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@ -152,9 +152,14 @@ func main() {
if !cfg.Bool("disable-ln-address") { if !cfg.Bool("disable-ln-address") {
lnurlHandler := func(c echo.Context) error { lnurlHandler := func(c echo.Context) error {
host := c.Request().Host host := c.Request().Host
if c.Request().Header.Get(echo.HeaderXForwardedFor) != "" { proto := c.Scheme()
host = c.Request().Header.Get(echo.HeaderXForwardedFor) // TODO: support RFC7239 Forwarded header
if c.Request().Header.Get("X-Forwarded-Host") != "" {
host = c.Request().Header.Get("X-Forwarded-Host")
} }
if c.Request().Header.Get("X-Forwarded-Proto") != "" {
proto = c.Request().Header.Get("X-Forwarded-Proto")
}
name := c.Param("name") name := c.Param("name")
lightningAddress := name + "@" + host lightningAddress := name + "@" + host
lnurlMetadata := "[[\"text/identifier\", \"" + lightningAddress + "\"], [\"text/plain\", \"Sats for " + lightningAddress + "\"]]" lnurlMetadata := "[[\"text/identifier\", \"" + lightningAddress + "\"], [\"text/plain\", \"Sats for " + lightningAddress + "\"]]"
@ -162,7 +167,7 @@ func main() {
if amount := c.QueryParam("amount"); amount == "" { if amount := c.QueryParam("amount"); amount == "" {
lnurlPayResponse1 := lnurl.LNURLPayResponse1{ lnurlPayResponse1 := lnurl.LNURLPayResponse1{
LNURLResponse: lnurl.LNURLResponse{Status: "OK"}, LNURLResponse: lnurl.LNURLResponse{Status: "OK"},
Callback: fmt.Sprintf("%s://%s%s", c.Scheme(), host, c.Request().URL.Path), Callback: fmt.Sprintf("%s://%s%s", proto, host, c.Request().URL.Path),
MinSendable: 1000, MinSendable: 1000,
MaxSendable: 100000000, MaxSendable: 100000000,
EncodedMetadata: lnurlMetadata, EncodedMetadata: lnurlMetadata,