Files
coop-mobile/shared/src/commonMain/kotlin/su/reya/coop/ExternalSignerHandler.kt
2026-06-09 07:53:48 +00:00

44 lines
1.6 KiB
Kotlin

package su.reya.coop
import kotlinx.serialization.Serializable
import kotlinx.serialization.json.Json
import rust.nostr.sdk.PublicKey
import rust.nostr.sdk.UnsignedEvent
/**
* Platform interface for NIP-55 external signer communication.
* Implemented on Android; no-op/null on other platforms.
*/
interface ExternalSignerHandler {
fun isAvailable(): Boolean
fun setPackageName(packageName: String)
suspend fun getPublicKey(permissions: String? = null): ExternalSignerResult?
suspend fun signEvent(event: UnsignedEvent, currentUser: PublicKey): String?
suspend fun nip04Encrypt(plaintext: String, pubkey: PublicKey): String?
suspend fun nip04Decrypt(ciphertext: String, pubkey: PublicKey): String?
suspend fun nip44Encrypt(plaintext: String, pubkey: PublicKey, currentUser: PublicKey): String?
suspend fun nip44Decrypt(ciphertext: String, pubkey: PublicKey, currentUser: PublicKey): String?
}
@Serializable
data class SignerPermission(
val type: String,
val kind: Int? = null,
)
object SignerPermissions {
fun signEvent(kind: Int? = null) = SignerPermission(type = "sign_event", kind = kind)
fun nip04Encrypt() = SignerPermission(type = "nip04_encrypt")
fun nip04Decrypt() = SignerPermission(type = "nip04_decrypt")
fun nip44Encrypt() = SignerPermission(type = "nip44_encrypt")
fun nip44Decrypt() = SignerPermission(type = "nip44_decrypt")
fun toJson(permissions: List<SignerPermission>): String {
return Json.encodeToString(permissions)
}
}
data class ExternalSignerResult(
val pubkey: PublicKey,
val packageName: String,
)