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feat(agent): add mediation and ability to send messages
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2 changes: 1 addition & 1 deletion
2
....atala.prism.domain/models/MediatorDID.kt → ...ohk.atala.prism.domain/models/Mediator.kt
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70 changes: 70 additions & 0 deletions
70
...agent/src/commonMain/kotlin/io/iohk/atala/prism/walletsdk/prismagent/ConnectionManager.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| package io.iohk.atala.prism.walletsdk.prismagent | ||
|
|
||
| import io.iohk.atala.prism.domain.buildingBlocks.Castor | ||
| import io.iohk.atala.prism.domain.buildingBlocks.Mercury | ||
| import io.iohk.atala.prism.domain.buildingBlocks.Pluto | ||
| import io.iohk.atala.prism.domain.models.DID | ||
| import io.iohk.atala.prism.domain.models.Message | ||
| import io.iohk.atala.prism.domain.models.PrismAgentError | ||
| import io.iohk.atala.prism.walletsdk.prismagent.mediation.MediatorHandler | ||
| import kotlinx.coroutines.flow.Flow | ||
| import kotlinx.coroutines.flow.first | ||
| import kotlinx.coroutines.flow.map | ||
|
|
||
| class ConnectionManager { | ||
| private val mercury: Mercury | ||
| private val castor: Castor | ||
| private val pluto: Pluto | ||
| val mediatorHandler: MediatorHandler | ||
|
|
||
| constructor( | ||
| mercury: Mercury, | ||
| castor: Castor, | ||
| pluto: Pluto, | ||
| mediatorHandler: MediatorHandler | ||
| ) { | ||
| this.mercury = mercury | ||
| this.castor = castor | ||
| this.pluto = pluto | ||
| this.mediatorHandler = mediatorHandler | ||
| } | ||
|
|
||
| @Throws() | ||
| suspend fun startMediator() { | ||
| mediatorHandler.bootRegisteredMediator() | ||
| .first() | ||
| } | ||
|
|
||
| @Throws() | ||
| suspend fun registerMediator(host: DID) { | ||
| mediatorHandler.achieveMediation(host) | ||
| .first() | ||
| } | ||
|
|
||
| @Throws() | ||
| suspend fun sendMessage(message: Message): Message? { | ||
| if (mediatorHandler.mediator == null) { | ||
| throw PrismAgentError.noMediatorAvailableError() | ||
| } | ||
| pluto.storeMessage(message) | ||
| return mercury.sendMessageParseMessage(message) | ||
| } | ||
|
|
||
| @Throws() | ||
| fun awaitMessages(): Flow<Array<Message>> { | ||
| return mediatorHandler.pickupUnreadMessages(NUMBER_OF_MESSAGES) | ||
| .map { | ||
| val messagesIds = it.map { it.first }.toTypedArray() | ||
| mediatorHandler.registerMessagesAsRead(messagesIds) | ||
| it.map { it.second }.toTypedArray() | ||
| } | ||
| .map { | ||
| pluto.storeMessages(it) | ||
| it | ||
| } | ||
| } | ||
|
|
||
| companion object { | ||
| const val NUMBER_OF_MESSAGES = 10 | ||
| } | ||
| } |
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118 changes: 118 additions & 0 deletions
118
...onMain/kotlin/io/iohk/atala/prism/walletsdk/prismagent/mediation/BasicMediationHandler.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,118 @@ | ||
| package io.iohk.atala.prism.walletsdk.prismagent.mediation | ||
|
|
||
| import io.iohk.atala.prism.apollo.uuid.UUID | ||
| import io.iohk.atala.prism.domain.buildingBlocks.Mercury | ||
| import io.iohk.atala.prism.domain.buildingBlocks.Pluto | ||
| import io.iohk.atala.prism.domain.models.AttachmentBase64 | ||
| import io.iohk.atala.prism.domain.models.AttachmentJsonData | ||
| import io.iohk.atala.prism.domain.models.DID | ||
| import io.iohk.atala.prism.domain.models.Mediator | ||
| import io.iohk.atala.prism.domain.models.Message | ||
| import io.iohk.atala.prism.domain.models.PrismAgentError | ||
| import io.iohk.atala.prism.walletsdk.prismagent.protocols.mediation.MediationGrant | ||
| import io.iohk.atala.prism.walletsdk.prismagent.protocols.mediation.MediationKeysUpdateList | ||
| import io.iohk.atala.prism.walletsdk.prismagent.protocols.mediation.MediationRequest | ||
| import io.iohk.atala.prism.walletsdk.prismagent.protocols.pickup.PickupDelivery | ||
| import io.iohk.atala.prism.walletsdk.prismagent.protocols.pickup.PickupReceived | ||
| import io.iohk.atala.prism.walletsdk.prismagent.protocols.pickup.PickupRequest | ||
| import kotlinx.coroutines.flow.Flow | ||
| import kotlinx.coroutines.flow.flow | ||
| import kotlinx.coroutines.flow.map | ||
|
|
||
| final class BasicMediationHandler( | ||
| override val mediatorDID: DID, | ||
| private val mercury: Mercury, | ||
| private val store: MediatorRepository | ||
| ) : MediatorHandler { | ||
| final class PlutoMediatorRepositoryImpl(private val pluto: Pluto) : MediatorRepository { | ||
| override fun getAllMediators(): Flow<Array<Mediator>> { | ||
| return pluto.getAllMediators() | ||
| } | ||
|
|
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| override fun storeMediator(mediator: Mediator) { | ||
| pluto.storeMediator(mediator.mediatorDID, mediator.hostDID, mediator.routingDID) | ||
| } | ||
| } | ||
|
|
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| override var mediator: Mediator? = null | ||
| private set | ||
|
|
||
| init { | ||
| this.mediator = null | ||
| } | ||
|
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| override fun bootRegisteredMediator(): Flow<Mediator> { | ||
| return mediator?.let { flow { emit(it) } } | ||
| ?: store.getAllMediators().map { it.first() } | ||
| } | ||
|
|
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| override fun achieveMediation(host: DID): Flow<Mediator> { | ||
| val requestMessage = MediationRequest(from = host, to = mediatorDID).makeMessage() | ||
| return flow { | ||
| emit(mercury.sendMessageParseMessage(message = requestMessage)) | ||
| }.map { | ||
| if (it != null) { | ||
| val grantedMessage = it.let { MediationGrant(it) } | ||
| val routingDID = DID(grantedMessage.body.routingDid) | ||
| Mediator( | ||
| id = UUID.randomUUID4().toString(), | ||
| mediatorDID = mediatorDID, | ||
| hostDID = host, | ||
| routingDID = routingDID | ||
| ) | ||
| } else { | ||
| throw PrismAgentError.mediationRequestFailedError() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| override suspend fun updateKeyListWithDIDs(dids: Array<DID>) { | ||
| val keyListUpdateMessage = mediator?.let { | ||
| MediationKeysUpdateList( | ||
| from = it.hostDID, | ||
| to = it.mediatorDID, | ||
| recipientDids = dids | ||
| ).makeMessage() | ||
| } ?: throw PrismAgentError.noMediatorAvailableError() | ||
| keyListUpdateMessage.let { message -> mercury.sendMessage(message) } | ||
| } | ||
|
|
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| override fun pickupUnreadMessages(limit: Int): Flow<Array<Pair<String, Message>>> { | ||
| val requestMessage = mediator?.let { | ||
| PickupRequest( | ||
| from = it.hostDID, | ||
| to = it.mediatorDID, | ||
| body = PickupRequest.Body(null, limit.toString()) | ||
| ).makeMessage() | ||
| } ?: throw PrismAgentError.noMediatorAvailableError() | ||
|
|
||
| return flow { | ||
| emit(mercury.sendMessageParseMessage(requestMessage)) | ||
| }.map { | ||
| val receivedMessage = it?.let { PickupDelivery(it) } | ||
| receivedMessage?.let { | ||
| it.attachments.mapNotNull { | ||
| val data = it.data | ||
| when(data) { | ||
| is AttachmentBase64 -> Pair(it.id, data.base64) | ||
| is AttachmentJsonData -> Pair(it.id, data.data) | ||
| else -> null | ||
| } | ||
| }.map { | ||
| Pair(it.first, mercury.unpackMessage(it.second)) | ||
| }.toTypedArray() | ||
| } ?: emptyArray() | ||
| } | ||
| } | ||
|
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| override suspend fun registerMessagesAsRead(ids: Array<String>) { | ||
| val requestMessage = mediator?.let { | ||
| PickupReceived( | ||
| from = it.hostDID, | ||
| to = it.mediatorDID, | ||
| body = PickupReceived.Body(messageIdList = ids) | ||
| ).makeMessage() | ||
| } ?: throw PrismAgentError.noMediatorAvailableError() | ||
| mercury.sendMessage(requestMessage) | ||
| } | ||
| } |
26 changes: 26 additions & 0 deletions
26
...c/commonMain/kotlin/io/iohk/atala/prism/walletsdk/prismagent/mediation/MediatorHandler.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,26 @@ | ||
| package io.iohk.atala.prism.walletsdk.prismagent.mediation | ||
|
|
||
| import io.iohk.atala.prism.domain.models.DID | ||
| import io.iohk.atala.prism.domain.models.Mediator | ||
| import io.iohk.atala.prism.domain.models.Message | ||
| import kotlinx.coroutines.flow.Flow | ||
|
|
||
| interface MediatorHandler { | ||
| val mediator: Mediator? | ||
| val mediatorDID: DID | ||
|
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| @Throws() | ||
| fun bootRegisteredMediator(): Flow<Mediator?> | ||
|
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| @Throws() | ||
| fun achieveMediation(host: DID): Flow<Mediator> | ||
|
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| @Throws() | ||
| suspend fun updateKeyListWithDIDs(dids: Array<DID>) | ||
|
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| @Throws() | ||
| fun pickupUnreadMessages(limit: Int): Flow<Array<Pair<String, Message>>> | ||
|
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| @Throws() | ||
| suspend fun registerMessagesAsRead(ids: Array<String>) | ||
| } |
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