policies

func AntiSyncBots ¶

func AntiSyncBots(ctx context.Context, filter nostr.Filter) (reject bool, msg string)

AntiSyncBots tries to prevent people from syncing kind:1s from this relay to else by always requiring an author parameter at least.

func ConnectionRateLimiter ¶

func ConnectionRateLimiter(tokensPerInterval int, interval time.Duration, maxTokens int) func(r *http.Request) bool

func EventIPRateLimiter ¶

func EventIPRateLimiter(tokensPerInterval int, interval time.Duration, maxTokens int) func(ctx context.Context, _ nostr.Event) (reject bool, msg string)

func EventPubKeyRateLimiter ¶

func EventPubKeyRateLimiter(tokensPerInterval int, interval time.Duration, maxTokens int) func(ctx context.Context, _ nostr.Event) (reject bool, msg string)

func FilterIPRateLimiter ¶

func FilterIPRateLimiter(tokensPerInterval int, interval time.Duration, maxTokens int) func(ctx context.Context, _ nostr.Filter) (reject bool, msg string)

func MustAuth ¶

func MustAuth(ctx context.Context, filter nostr.Filter) (reject bool, msg string)

MustAuth requires all subscribers to be authenticated

func NoComplexFilters ¶

func NoComplexFilters(ctx context.Context, filter nostr.Filter) (reject bool, msg string)

NoComplexFilters disallows filters with more than 2 tags.

func NoEmptyFilters ¶

func NoEmptyFilters(ctx context.Context, filter nostr.Filter) (reject bool, msg string)

NoEmptyFilters disallows filters that don't have at least a tag, a kind, an author or an id.

func NoSearchQueries ¶

func NoSearchQueries(ctx context.Context, filter nostr.Filter) (reject bool, msg string)

func OnlyAllowNIP70ProtectedEvents ¶

func OnlyAllowNIP70ProtectedEvents(ctx context.Context, event nostr.Event) (reject bool, msg string)

func PreventLargeContent ¶

func PreventLargeContent(maxContent int) func(context.Context, nostr.Event) (bool, string)

PreventLargeContent rejects events with content too large

func PreventLargeTags ¶

func PreventLargeTags(maxTagValueLen int) func(context.Context, nostr.Event) (bool, string)

PreventLargeTags rejects events that have indexable tag values greater than maxTagValueLen.

func PreventTimestampsInTheFuture ¶

func PreventTimestampsInTheFuture(threshold time.Duration) func(context.Context, nostr.Event) (bool, string)

func PreventTimestampsInThePast ¶

func PreventTimestampsInThePast(threshold time.Duration) func(context.Context, nostr.Event) (bool, string)

func PreventTooManyIndexableTags ¶

func PreventTooManyIndexableTags(max int, ignoreKinds []nostr.Kind, onlyKinds []nostr.Kind) func(context.Context, nostr.Event) (bool, string)

PreventTooManyIndexableTags returns a function that can be used as a RejectFilter that will reject events with more indexable (single-character) tags than the specified number.

If ignoreKinds is given this restriction will not apply to these kinds (useful for allowing a bigger). If onlyKinds is given then all other kinds will be ignored.

func RejectEventsWithBase64Media ¶

func RejectEventsWithBase64Media(ctx context.Context, evt nostr.Event) (bool, string)

func RemoveAllButKinds ¶

func RemoveAllButKinds(kinds ...nostr.Kind) func(context.Context, *nostr.Filter)

func RemoveAllButTags ¶

func RemoveAllButTags(tagNames ...string) func(context.Context, *nostr.Filter)

func RemoveSearchQueries ¶

func RemoveSearchQueries(ctx context.Context, filter *nostr.Filter)

func RestrictToSpecifiedKinds ¶

func RestrictToSpecifiedKinds(allowEphemeral bool, kinds ...nostr.Kind) func(context.Context, nostr.Event) (bool, string)

RestrictToSpecifiedKinds returns a function that can be used as a RejectFilter that will reject any events with kinds different than the specified ones.

func SeqEvent ¶

func SeqEvent(
	funcs ...func(ctx context.Context, evt nostr.Event) (bool, string),
) func(context.Context, nostr.Event) (reject bool, reason string)

func SeqRequest ¶

func SeqRequest(
	funcs ...func(ctx context.Context, evt nostr.Filter) (bool, string),
) func(context.Context, nostr.Filter) (reject bool, reason string)

func SeqStore ¶

func SeqStore(funcs ...func(ctx context.Context, evt nostr.Event) error) func(context.Context, nostr.Event) error

func ValidateKind ¶

func ValidateKind(ctx context.Context, evt nostr.Event) (bool, string)