60 lines
1.4 KiB
Go
60 lines
1.4 KiB
Go
package httpauth
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import (
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"encoding/base64"
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"net/http"
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"net/url"
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"strings"
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"realy.lol/chk"
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"realy.lol/event"
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"realy.lol/kind"
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"realy.lol/log"
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"realy.lol/signer"
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"realy.lol/tag"
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"realy.lol/tags"
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"realy.lol/timestamp"
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)
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const (
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HeaderKey = "Authorization"
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NIP98Prefix = "Nostr"
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)
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// MakeNIP98Event creates a new NIP-98 event. If expiry is given, method is ignored, otherwise
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// either option is the same.
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func MakeNIP98Event(u, method, hash string, expiry int64) (ev *event.T) {
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var t []*tag.T
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t = append(t, tag.New("u", u))
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if expiry > 0 {
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t = append(t,
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tag.New("expiration", timestamp.FromUnix(expiry).String()))
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} else {
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t = append(t,
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tag.New("method", strings.ToUpper(method)))
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}
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if hash != "" {
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t = append(t, tag.New("payload", hash))
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}
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ev = &event.T{
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CreatedAt: timestamp.Now(),
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Kind: kind.HTTPAuth,
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Tags: tags.New(t...),
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}
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return
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}
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// AddNIP98Header creates a NIP-98 http auth event and adds the standard header to a provided
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// http.Request.
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func AddNIP98Header(r *http.Request, ur *url.URL, method, hash string,
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sign signer.I, expiry int64) (err error) {
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ev := MakeNIP98Event(ur.String(), method, hash, expiry)
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if err = ev.Sign(sign); chk.E(err) {
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return
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}
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log.T.F("nip-98 http auth event:\n%s\n", ev.SerializeIndented())
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b64 := base64.URLEncoding.EncodeToString(ev.Serialize())
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r.Header.Add(HeaderKey, "Nostr "+b64)
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return
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}
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