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 PreventNormalDuplicates ¶

func PreventNormalDuplicates(query func(nostr.Filter, int) iter.Seq[nostr.Event]) func(ctx context.Context, event nostr.Event) (bool, string)

PreventNormalDuplicates prevents normal events that refer to the same thing from being saved. For kinds 6, 7, 16, 1018 it checks "e" tags. For kind 1163 it checks "p" tags. For kinds 1163, 6, 16, 7516, 7517 it checks "a" tags.

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 RejectUnprefixedNostrReferences ¶

func RejectUnprefixedNostrReferences(ctx context.Context, event 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, filter 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 ValidateAgainstSchema ¶

func ValidateAgainstSchema(v schema.Validator) func(ctx context.Context, evt nostr.Event) (bool, string)

func ValidateKind ¶

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