Misc stargate updates

Author: chRyNaN

component-stargate/src/commonMain/kotlin/com/mooncloak/vpn/component/stargate/entanglement/DIDResolver.kt renamed to component-stargate/src/commonMain/kotlin/com/mooncloak/vpn/component/stargate/entanglement/ATProtocolDIDResolver.kt

@@ -6,13 +6,20 @@ import io.ktor.client.request.get
 import io.ktor.client.statement.bodyAsText
 import io.ktor.http.isSuccess
 
-public class DIDResolver public constructor(
+public interface DIDResolver {
+
+    public suspend fun resolve(handle: IdentityHandle): DID
+
+    public companion object
+}
+
+public class ATProtocolDIDResolver public constructor(
     private val defaultDomainProvider: DomainProvider,
     private val dnsTxtRecordResolver: DnsTxtRecordResolver,
     private val httpClient: HttpClient
-) {
+) : DIDResolver {
 
-    public suspend fun resolve(handle: IdentityHandle): DID =
+    override suspend fun resolve(handle: IdentityHandle): DID =
         when (handle.format) {
             IdentityHandleFormat.DID -> DID.from(value = handle.value)
 

component-stargate/src/commonMain/kotlin/com/mooncloak/vpn/component/stargate/entanglement/DIDDocumentResolver.kt

@@ -4,19 +4,18 @@ import io.ktor.client.HttpClient
 import io.ktor.client.call.body
 import io.ktor.client.request.get
 
-public class DIDDocumentResolver public constructor(
-    private val httpClient: HttpClient
-) {
+public interface DIDDocumentResolver {
 
-    public suspend fun resolve(did: DID): DIDDocument =
-        when (val method = did.method) {
-            "web" -> resolveDidWeb(did)
-            "plc" -> resolveDidPlc(did)
-            // TODO: Possibly support other well known DID methods.
-            else -> error("Unsupported DID method '$method'")
-        }
+    public suspend fun resolve(did: DID): DIDDocument
+
+    public companion object
+}
 
-    private suspend fun resolveDidWeb(did: DID): DIDDocument {
+public class DIDWebDocumentResolver public constructor(
+    private val httpClient: HttpClient
+) : DIDDocumentResolver {
+
+    override suspend fun resolve(did: DID): DIDDocument {
         val identifier = did.id ?: error("DID id part was required but was missing.")
 
         // Convert identifier to URL (e.g., chris.keenan -> https://chris.keenan/.well-known/did.json)
@@ -40,7 +39,18 @@ public class DIDDocumentResolver public constructor(
         }
     }
 
-    private suspend fun resolveDidPlc(did: DID): DIDDocument {
+    private fun DIDDocument.validateDidDocument(did: DID) {
+        if (this.id != did.value) {
+            error("DID document id '${this.id}' does not match expected DID '${did.value}'.")
+        }
+    }
+}
+
+public class DIDPlcDocumentResolver public constructor(
+    private val httpClient: HttpClient
+) : DIDDocumentResolver {
+
+    override suspend fun resolve(did: DID): DIDDocument {
         // Query PLC directory (e.g., https://plc.directory/did:plc:abc123)
         val url = "https://plc.directory/${did.value}"
 
@@ -57,3 +67,19 @@ public class DIDDocumentResolver public constructor(
         }
     }
 }
+
+public class DefaultDIDDocumentResolver public constructor(
+    httpClient: HttpClient
+) : DIDDocumentResolver {
+
+    private val didWebDocumentResolver = DIDWebDocumentResolver(httpClient = httpClient)
+    private val didPlcDocumentResolver = DIDPlcDocumentResolver(httpClient = httpClient)
+
+    override suspend fun resolve(did: DID): DIDDocument =
+        when (val method = did.method) {
+            "web" -> didWebDocumentResolver.resolve(did)
+            "plc" -> didPlcDocumentResolver.resolve(did)
+            // TODO: Possibly support other well known DID methods.
+            else -> error("Unsupported DID method '$method'")
+        }
+}