Merge branch 'main' into claude/nip42-relay-auth-P878m

2026-03-21 13:37:21 -04:00
parent cfead47d71 862aa0cb78
commit 15ff3040b5
102 changed files with 2481 additions and 918 deletions
@@ -23,13 +23,26 @@ package com.vitorpamplona.quartz.experimental.attestations.attestation
 import androidx.compose.runtime.Immutable
 import com.vitorpamplona.quartz.experimental.attestations.attestation.tags.AttestationStatus
 import com.vitorpamplona.quartz.experimental.attestations.attestation.tags.Validity
+import com.vitorpamplona.quartz.experimental.attestations.request.AttestationRequestEvent
 import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
+import com.vitorpamplona.quartz.nip01Core.core.BaseReplaceableEvent
+import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder
+import com.vitorpamplona.quartz.nip01Core.hints.AddressHintProvider
+import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle
+import com.vitorpamplona.quartz.nip01Core.hints.EventHintProvider
+import com.vitorpamplona.quartz.nip01Core.hints.PubKeyHintProvider
+import com.vitorpamplona.quartz.nip01Core.hints.types.AddressHint
+import com.vitorpamplona.quartz.nip01Core.hints.types.EventIdHint
 import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate
+import com.vitorpamplona.quartz.nip01Core.tags.aTag.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.dTag.dTag
+import com.vitorpamplona.quartz.nip01Core.tags.events.ETag
+import com.vitorpamplona.quartz.nip01Core.tags.people.PTag
 import com.vitorpamplona.quartz.nip31Alts.alt
 import com.vitorpamplona.quartz.utils.TimeUtils
+import kotlinx.serialization.json.JsonNull.content

@Immutable
 class AttestationEvent(
@@ -39,7 +52,22 @@ class AttestationEvent(
    tags: Array<Array<String>>,
    content: String,
    sig: HexKey,
-) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig) {
+) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig),
+    EventHintProvider,
+    AddressHintProvider,
+    PubKeyHintProvider {
+    override fun eventHints(): List<EventIdHint> = tags.mapNotNull(ETag::parseAsHint)
+
+    override fun linkedEventIds(): List<HexKey> = tags.mapNotNull(ETag::parseId)
+
+    override fun addressHints(): List<AddressHint> = tags.mapNotNull(ATag::parseAsHint)
+
+    override fun linkedAddressIds(): List<String> = tags.mapNotNull(ATag::parseAddressId)
+
+    override fun pubKeyHints() = tags.mapNotNull(PTag::parseAsHint)
+
+    override fun linkedPubKeys() = tags.mapNotNull(PTag::parseKey)
+
    fun validity() = tags.validity()

    fun status() = tags.status()
@@ -50,25 +78,91 @@ class AttestationEvent(

    fun request() = tags.request()

+    fun requestId() = tags.requestId()
+
+    fun requestAddress() = tags.requestAddress()
+
    fun isRevoked() = status() == AttestationStatus.REVOKED

+    fun assertionAddrId() = tags.firstNotNullOfOrNull(ATag::parseAddressId)
+
+    fun assertionAddress() = tags.firstNotNullOfOrNull(ATag::parseAddress)
+
+    fun assertionATag() = tags.firstNotNullOfOrNull(ATag::parse)
+
+    fun assertionEventId() = tags.firstNotNullOfOrNull(ETag::parseId)
+
+    fun assertionETag() = tags.firstNotNullOfOrNull(ETag::parse)
+
+    fun assertionPubkey() = tags.firstNotNullOfOrNull(PTag::parseKey)
+
+    fun assertionPTag() = tags.firstNotNullOfOrNull(PTag::parse)
+
    companion object {
        const val KIND = 31871
        const val ALT_DESCRIPTION = "Attestation"

-        fun build(
+        fun buildEvent(
            dTagId: String,
+            about: EventHintBundle<Event>,
            content: String = "",
            validity: Validity? = null,
            status: AttestationStatus? = null,
            validFrom: Long? = null,
            validTo: Long? = null,
-            requestAddress: String? = null,
+            requestAddress: EventHintBundle<AttestationRequestEvent>? = null,
            createdAt: Long = TimeUtils.now(),
            initializer: TagArrayBuilder<AttestationEvent>.() -> Unit = {},
        ) = eventTemplate(KIND, content, createdAt) {
            alt(ALT_DESCRIPTION)
            dTag(dTagId)
+            about(about)
+            validity?.let { validity(it) }
+            status?.let { status(it) }
+            validFrom?.let { validFrom(it) }
+            validTo?.let { validTo(it) }
+            requestAddress?.let { request(it) }
+            initializer()
+        }
+
+        fun buildReplaceable(
+            dTagId: String,
+            about: EventHintBundle<BaseReplaceableEvent>,
+            content: String = "",
+            validity: Validity? = null,
+            status: AttestationStatus? = null,
+            validFrom: Long? = null,
+            validTo: Long? = null,
+            requestAddress: EventHintBundle<AttestationRequestEvent>? = null,
+            createdAt: Long = TimeUtils.now(),
+            initializer: TagArrayBuilder<AttestationEvent>.() -> Unit = {},
+        ) = eventTemplate(KIND, content, createdAt) {
+            alt(ALT_DESCRIPTION)
+            dTag(dTagId)
+            aboutReplaceable(about)
+            validity?.let { validity(it) }
+            status?.let { status(it) }
+            validFrom?.let { validFrom(it) }
+            validTo?.let { validTo(it) }
+            requestAddress?.let { request(it) }
+            initializer()
+        }
+
+        fun buildAddress(
+            dTagId: String,
+            about: EventHintBundle<BaseAddressableEvent>,
+            content: String = "",
+            validity: Validity? = null,
+            status: AttestationStatus? = null,
+            validFrom: Long? = null,
+            validTo: Long? = null,
+            requestAddress: EventHintBundle<AttestationRequestEvent>? = null,
+            createdAt: Long = TimeUtils.now(),
+            initializer: TagArrayBuilder<AttestationEvent>.() -> Unit = {},
+        ) = eventTemplate(KIND, content, createdAt) {
+            alt(ALT_DESCRIPTION)
+            dTag(dTagId)
+            aboutAddressable(about)
            validity?.let { validity(it) }
            status?.let { status(it) }
            validFrom?.let { validFrom(it) }
@@ -27,7 +27,14 @@ import com.vitorpamplona.quartz.experimental.attestations.attestation.tags.Valid
 import com.vitorpamplona.quartz.experimental.attestations.attestation.tags.ValidToTag
 import com.vitorpamplona.quartz.experimental.attestations.attestation.tags.Validity
 import com.vitorpamplona.quartz.experimental.attestations.attestation.tags.ValidityTag
+import com.vitorpamplona.quartz.experimental.attestations.request.AttestationRequestEvent
+import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
+import com.vitorpamplona.quartz.nip01Core.core.BaseReplaceableEvent
+import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder
+import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle
+import com.vitorpamplona.quartz.nip01Core.tags.aTag.ATag
+import com.vitorpamplona.quartz.nip01Core.tags.events.ETag

 fun TagArrayBuilder<AttestationEvent>.validity(validity: Validity) = addUnique(ValidityTag.assemble(validity))

@@ -37,4 +44,10 @@ fun TagArrayBuilder<AttestationEvent>.validFrom(timestamp: Long) = addUnique(Val

 fun TagArrayBuilder<AttestationEvent>.validTo(timestamp: Long) = addUnique(ValidToTag.assemble(timestamp))

-fun TagArrayBuilder<AttestationEvent>.request(requestAddress: String) = addUnique(RequestTag.assemble(requestAddress))
+fun TagArrayBuilder<AttestationEvent>.request(request: EventHintBundle<AttestationRequestEvent>) = addUnique(RequestTag.assemble(request.event.address(), request.relay))
+
+fun TagArrayBuilder<AttestationEvent>.aboutAddressable(request: EventHintBundle<BaseAddressableEvent>) = addUnique(ATag.assemble(request.event.address(), request.relay))
+
+fun TagArrayBuilder<AttestationEvent>.aboutReplaceable(request: EventHintBundle<BaseReplaceableEvent>) = addUnique(ATag.assemble(request.event.address(), request.relay))
+
+fun TagArrayBuilder<AttestationEvent>.about(request: EventHintBundle<Event>) = addUnique(ETag.assemble(request.event.id, request.relay, request.event.pubKey))
@@ -36,3 +36,7 @@ fun TagArray.validFrom() = firstNotNullOfOrNull(ValidFromTag::parse)
 fun TagArray.validTo() = firstNotNullOfOrNull(ValidToTag::parse)

 fun TagArray.request() = firstNotNullOfOrNull(RequestTag::parse)
+
+fun TagArray.requestId() = firstNotNullOfOrNull(RequestTag::parseAddressId)
+
+fun TagArray.requestAddress() = firstNotNullOfOrNull(RequestTag::parseAddress)
@@ -20,22 +20,108 @@
 */
 package com.vitorpamplona.quartz.experimental.attestations.attestation.tags

+import com.vitorpamplona.quartz.nip01Core.core.Address
+import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.has
+import com.vitorpamplona.quartz.nip01Core.hints.types.AddressHint
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.NormalizedRelayUrl
+import com.vitorpamplona.quartz.nip01Core.relay.normalizer.RelayUrlNormalizer
+import com.vitorpamplona.quartz.nip72ModCommunities.approval.tags.ApprovedAddressTag
+import com.vitorpamplona.quartz.nip72ModCommunities.definition.CommunityDefinitionEvent
+import com.vitorpamplona.quartz.utils.arrayOfNotNull
 import com.vitorpamplona.quartz.utils.ensure

-class RequestTag {
+class RequestTag(
+    val address: Address,
+    val relayHint: NormalizedRelayUrl? = null,
+) {
+    fun toTag() = Address.assemble(address.kind, address.pubKeyHex, address.dTag)
+
+    fun toTagArray() = assemble(address, relayHint)
+
+    fun toTagIdOnly() = assemble(address, null)
+
    companion object {
        const val TAG_NAME = "request"

-        fun isTag(tag: Array<String>) = tag.has(1) && tag[0] == TAG_NAME && tag[1].isNotEmpty()
+        fun isTagged(tag: Array<String>) = tag.has(1) && tag[0] == TAG_NAME && !Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)

-        fun parse(tag: Array<String>): String? {
+        fun isTagged(
+            tag: Array<String>,
+            addressId: String,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] == addressId
+
+        fun isTagged(
+            tag: Array<String>,
+            address: ApprovedAddressTag,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] == address.toTag()
+
+        fun isIn(
+            tag: Array<String>,
+            addressIds: Set<String>,
+        ) = tag.has(1) && tag[0] == TAG_NAME && tag[1] in addressIds
+
+        fun parse(tag: Array<String>): ApprovedAddressTag? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+
+            val address = Address.parse(tag[1]) ?: return null
+            val relayHint = tag.getOrNull(2)?.let { RelayUrlNormalizer.normalizeOrNull(it) }
+            return ApprovedAddressTag(address, relayHint)
+        }
+
+        fun parseValidAddress(tag: Array<String>): String? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+            return Address.parse(tag[1])?.toValue()
+        }
+
+        fun parseAddress(tag: Array<String>): Address? {
            ensure(tag.has(1)) { return null }
            ensure(tag[0] == TAG_NAME) { return null }
            ensure(tag[1].isNotEmpty()) { return null }
+            val address = Address.parse(tag[1]) ?: return null
+            ensure(address.kind != CommunityDefinitionEvent.KIND) { return null }
+            return address
+        }
+
+        fun parseAddressId(tag: Array<String>): String? {
+            ensure(tag.has(1)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
            return tag[1]
        }

-        fun assemble(requestAddress: String) = arrayOf(TAG_NAME, requestAddress)
+        fun parseAsHint(tag: Array<String>): AddressHint? {
+            ensure(tag.has(2)) { return null }
+            ensure(tag[0] == TAG_NAME) { return null }
+            ensure(!Address.isOfKind(tag[1], CommunityDefinitionEvent.KIND_STR)) { return null }
+            ensure(tag[1].contains(':')) { return null }
+            ensure(tag[2].isNotEmpty()) { return null }
+
+            val relayHint = RelayUrlNormalizer.normalizeOrNull(tag[2])
+            ensure(relayHint != null) { return null }
+
+            return AddressHint(tag[1], relayHint)
+        }
+
+        fun assemble(
+            aTagId: HexKey,
+            relay: NormalizedRelayUrl?,
+        ) = arrayOfNotNull(TAG_NAME, aTagId, relay?.url)
+
+        fun assemble(
+            address: Address,
+            relay: NormalizedRelayUrl?,
+        ) = arrayOfNotNull(TAG_NAME, address.toValue(), relay?.url)
+
+        fun assemble(
+            kind: Int,
+            pubKey: String,
+            dTag: String,
+            relay: NormalizedRelayUrl?,
+        ) = assemble(Address.assemble(kind, pubKey, dTag), relay)
    }
 }
@@ -21,13 +21,27 @@
 package com.vitorpamplona.quartz.experimental.attestations.request

 import androidx.compose.runtime.Immutable
+import com.vitorpamplona.quartz.experimental.attestations.request.attestorPubKeys
+import com.vitorpamplona.quartz.experimental.attestations.request.cashuToken
 import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
+import com.vitorpamplona.quartz.nip01Core.core.BaseReplaceableEvent
+import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder
+import com.vitorpamplona.quartz.nip01Core.hints.AddressHintProvider
+import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle
+import com.vitorpamplona.quartz.nip01Core.hints.EventHintProvider
+import com.vitorpamplona.quartz.nip01Core.hints.PubKeyHintProvider
+import com.vitorpamplona.quartz.nip01Core.hints.types.AddressHint
+import com.vitorpamplona.quartz.nip01Core.hints.types.EventIdHint
 import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate
+import com.vitorpamplona.quartz.nip01Core.tags.aTag.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.dTag.dTag
+import com.vitorpamplona.quartz.nip01Core.tags.events.ETag
+import com.vitorpamplona.quartz.nip01Core.tags.people.PTag
 import com.vitorpamplona.quartz.nip31Alts.alt
 import com.vitorpamplona.quartz.utils.TimeUtils
+import kotlin.let

@Immutable
 class AttestationRequestEvent(
@@ -37,15 +51,45 @@ class AttestationRequestEvent(
    tags: Array<Array<String>>,
    content: String,
    sig: HexKey,
-) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig) {
+) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig),
+    EventHintProvider,
+    AddressHintProvider,
+    PubKeyHintProvider {
+    override fun eventHints(): List<EventIdHint> = tags.mapNotNull(ETag::parseAsHint)
+
+    override fun linkedEventIds(): List<HexKey> = tags.mapNotNull(ETag::parseId)
+
+    override fun addressHints(): List<AddressHint> = tags.mapNotNull(ATag::parseAsHint)
+
+    override fun linkedAddressIds(): List<String> = tags.mapNotNull(ATag::parseAddressId)
+
+    override fun pubKeyHints() = tags.mapNotNull(PTag::parseAsHint)
+
+    override fun linkedPubKeys() = tags.mapNotNull(PTag::parseKey)
+
    fun cashuToken() = tags.cashuToken()

+    fun assertionAddrId() = tags.firstNotNullOfOrNull(ATag::parseAddressId)
+
+    fun assertionAddress() = tags.firstNotNullOfOrNull(ATag::parseAddress)
+
+    fun assertionATag() = tags.firstNotNullOfOrNull(ATag::parse)
+
+    fun assertionEventId() = tags.firstNotNullOfOrNull(ETag::parseId)
+
+    fun assertionETag() = tags.firstNotNullOfOrNull(ETag::parse)
+
+    fun assertionPubkey() = tags.firstNotNullOfOrNull(PTag::parseKey)
+
+    fun assertionPTag() = tags.firstNotNullOfOrNull(PTag::parse)
+
    companion object {
        const val KIND = 31872
        const val ALT_DESCRIPTION = "Attestation Request"

-        fun build(
+        fun buildEvent(
            dTagId: String,
+            about: EventHintBundle<Event>,
            content: String = "",
            attestorPubKeys: List<HexKey> = emptyList(),
            cashuToken: String? = null,
@@ -54,6 +98,41 @@ class AttestationRequestEvent(
        ) = eventTemplate(KIND, content, createdAt) {
            alt(ALT_DESCRIPTION)
            dTag(dTagId)
+            about(about)
+            attestorPubKeys(attestorPubKeys)
+            cashuToken?.let { cashuToken(it) }
+            initializer()
+        }
+
+        fun buildReplaceable(
+            dTagId: String,
+            about: EventHintBundle<BaseReplaceableEvent>,
+            content: String = "",
+            attestorPubKeys: List<HexKey> = emptyList(),
+            cashuToken: String? = null,
+            createdAt: Long = TimeUtils.now(),
+            initializer: TagArrayBuilder<AttestationRequestEvent>.() -> Unit = {},
+        ) = eventTemplate(KIND, content, createdAt) {
+            alt(ALT_DESCRIPTION)
+            dTag(dTagId)
+            aboutReplaceable(about)
+            attestorPubKeys(attestorPubKeys)
+            cashuToken?.let { cashuToken(it) }
+            initializer()
+        }
+
+        fun buildAddress(
+            dTagId: String,
+            about: EventHintBundle<BaseAddressableEvent>,
+            content: String = "",
+            attestorPubKeys: List<HexKey> = emptyList(),
+            cashuToken: String? = null,
+            createdAt: Long = TimeUtils.now(),
+            initializer: TagArrayBuilder<AttestationRequestEvent>.() -> Unit = {},
+        ) = eventTemplate(KIND, content, createdAt) {
+            alt(ALT_DESCRIPTION)
+            dTag(dTagId)
+            aboutAddressable(about)
            attestorPubKeys(attestorPubKeys)
            cashuToken?.let { cashuToken(it) }
            initializer()
@@ -21,10 +21,22 @@
 package com.vitorpamplona.quartz.experimental.attestations.request

 import com.vitorpamplona.quartz.experimental.attestations.request.tags.CashuTokenTag
+import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
+import com.vitorpamplona.quartz.nip01Core.core.BaseReplaceableEvent
+import com.vitorpamplona.quartz.nip01Core.core.Event
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder
+import com.vitorpamplona.quartz.nip01Core.hints.EventHintBundle
+import com.vitorpamplona.quartz.nip01Core.tags.aTag.ATag
+import com.vitorpamplona.quartz.nip01Core.tags.events.ETag
 import com.vitorpamplona.quartz.nip01Core.tags.people.PTag

 fun TagArrayBuilder<AttestationRequestEvent>.attestorPubKeys(pubKeys: List<HexKey>) = addAll(pubKeys.map { PTag.assemble(it, null) })

 fun TagArrayBuilder<AttestationRequestEvent>.cashuToken(token: String) = addUnique(CashuTokenTag.assemble(token))
+
+fun TagArrayBuilder<AttestationRequestEvent>.aboutAddressable(request: EventHintBundle<BaseAddressableEvent>) = addUnique(ATag.assemble(request.event.address(), request.relay))
+
+fun TagArrayBuilder<AttestationRequestEvent>.aboutReplaceable(request: EventHintBundle<BaseReplaceableEvent>) = addUnique(ATag.assemble(request.event.address(), request.relay))
+
+fun TagArrayBuilder<AttestationRequestEvent>.about(request: EventHintBundle<Event>) = addUnique(ETag.assemble(request.event.id, request.relay, request.event.pubKey))
@@ -26,6 +26,16 @@ import com.vitorpamplona.quartz.nip01Core.store.IEventStore
 import kotlinx.coroutines.channels.BufferOverflow
 import kotlinx.coroutines.flow.MutableSharedFlow

+/**
+ * A reactive event store that combines historical data retrieval with live event streaming.
+ *
+ * This class wraps an [IEventStore] to provide real-time updates. When a [query] is executed,
+ * it first replays all matching historical events from the underlying store, signals the
+ * End of Stored Events (EOSE), and then continues to stream matching new events as they
+ * are inserted.
+ *
+ * @property store The underlying persistent storage for events.
+ */
 class LiveEventStore(
    private val store: IEventStore,
 ) {
@@ -29,14 +29,10 @@ import kotlinx.coroutines.cancel
 import kotlin.coroutines.CoroutineContext

 /**
- * This class manages per-connection subscriptions as coroutines. Each
- * subscription (REQ) launches a child coroutine that first replays stored
- * events matching the filters, sends EOSE, and then streams live events.
- * Closing a subscription (CLOSE) immediately cancels its coroutine.
+ * Represents a Nostr relay server that manages client connections, event storage, and verification.
 *
- * The server is transport-agnostic: callers feed incoming JSON via
- * [RelaySession.receive] and receive outgoing JSON via the [RelaySession.send] callback
- * provided to [connect]. This allows use with any WebSocket library.
+ * This class acts as the central coordinator for a relay server, handling the lifecycle of [RelaySession]s
+ * and providing access to the underlying event store.
 *
 * @param store The [IEventStore] backing this relay.
 * @param policyBuilder Controls requirements for relay commands.
@@ -41,7 +41,8 @@ import kotlinx.coroutines.Job
 import kotlinx.coroutines.launch

 /**
- * Represents a single connected client with its active subscriptions.
+ * Represents an active session between a Nostr client and the relay.
+ * Each one of these is a connection that can hold many subscriptions
 */
 class RelaySession(
    private val store: LiveEventStore,
@@ -24,6 +24,7 @@ import androidx.compose.runtime.Immutable
 import com.vitorpamplona.quartz.nip01Core.core.BaseAddressableEvent
 import com.vitorpamplona.quartz.nip01Core.core.HexKey
 import com.vitorpamplona.quartz.nip01Core.core.TagArrayBuilder
+import com.vitorpamplona.quartz.nip01Core.hints.PubKeyHintProvider
 import com.vitorpamplona.quartz.nip01Core.signers.eventTemplate
 import com.vitorpamplona.quartz.nip01Core.tags.aTag.ATag
 import com.vitorpamplona.quartz.nip01Core.tags.aTag.aTag
@@ -47,7 +48,12 @@ class CalendarRSVPEvent(
    tags: Array<Array<String>>,
    content: String,
    sig: HexKey,
-) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig) {
+) : BaseAddressableEvent(id, pubKey, createdAt, KIND, tags, content, sig),
+    PubKeyHintProvider {
+    override fun pubKeyHints() = tags.mapNotNull(PTag::parseAsHint)
+
+    override fun linkedPubKeys() = tags.mapNotNull(PTag::parseKey)
+
    fun status() = tags.firstNotNullOfOrNull(RSVPStatusTag.Companion::parse)

    fun statusValue() = tags.firstNotNullOfOrNull(RSVPStatusTag.Companion::parseValue)