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nip11: catch invalid/small urls.

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This commit is contained in:
fiatjaf
2025-02-25 08:15:58 -03:00
parent c98b2ea67e
commit 7e06354b6f
1 changed files with 11 additions and 8 deletions
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19
nip11/fetch.go
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@@ -16,6 +16,16 @@ import (
// relay or if it doesn't have a NIP-11 handler -- although in that case it will also return
// an error.
func Fetch(ctx context.Context, u string) (info RelayInformationDocument, err error) {
// normalize URL to start with http://, https:// or without protocol
u = nostr.NormalizeURL(u)
if len(u) < 8 {
return info, fmt.Errorf("invalid url %s", u)
}
info = RelayInformationDocument{
URL: u,
}
if _, ok := ctx.Deadline(); !ok {
// if no timeout is set, force it to 7 seconds
var cancel context.CancelFunc
@@ -23,15 +33,8 @@ func Fetch(ctx context.Context, u string) (info RelayInformationDocument, err er
defer cancel()
}
// normalize URL to start with http://, https:// or without protocol
u = nostr.NormalizeURL(u)
info = RelayInformationDocument{
URL: u,
}
// make request
req, err := http.NewRequestWithContext(ctx, "GET", "http"+u[2:], nil)
req, _ := http.NewRequestWithContext(ctx, "GET", "http"+u[2:], nil)
// add the NIP-11 header
req.Header.Add("Accept", "application/nostr+json")