mirror of
https://github.com/aljazceru/khatru.git
synced 2026-01-23 15:14:21 +01:00
59 lines
1.7 KiB
Go
59 lines
1.7 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"strings"
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"github.com/fiatjaf/go-nostr"
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)
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func (b *ClosedRelay) SaveEvent(evt *nostr.Event) error {
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// disallow anything from non-authorized pubkeys
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for _, pubkey := range b.AuthorizedPubkeys {
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if pubkey == evt.PubKey {
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goto save
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}
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}
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return fmt.Errorf("event from '%s' not allowed here", evt.PubKey)
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save:
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// react to different kinds of events
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switch evt.Kind {
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case nostr.KindSetMetadata:
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// delete past set_metadata events from this user
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b.DB.Exec(`DELETE FROM event WHERE pubkey = $1 AND kind = 0`, evt.PubKey)
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case nostr.KindRecommendServer:
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// delete past recommend_server events equal to this one
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b.DB.Exec(`DELETE FROM event WHERE pubkey = $1 AND kind = 2 AND content = $2`,
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evt.PubKey, evt.Content)
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case nostr.KindContactList:
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// delete past contact lists from this same pubkey
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b.DB.Exec(`DELETE FROM event WHERE pubkey = $1 AND kind = 3`, evt.PubKey)
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default:
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// delete all but the 10 most recent ones
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b.DB.Exec(`DELETE FROM event WHERE pubkey = $1 AND kind = $2 AND created_at < (
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SELECT created_at FROM event WHERE pubkey = $1
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ORDER BY created_at DESC OFFSET 10 LIMIT 1
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)`,
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evt.PubKey, evt.Kind)
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}
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// insert
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tagsj, _ := json.Marshal(evt.Tags)
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_, err := b.DB.Exec(`
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INSERT INTO event (id, pubkey, created_at, kind, tags, content, sig)
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VALUES ($1, $2, $3, $4, $5, $6, $7)
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`, evt.ID, evt.PubKey, evt.CreatedAt.Unix(), evt.Kind, tagsj, evt.Content, evt.Sig)
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if err != nil {
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if strings.Index(err.Error(), "UNIQUE") != -1 {
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// already exists
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return nil
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}
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return fmt.Errorf("failed to save event %s: %w", evt.ID, err)
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}
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return nil
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}
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