Group Admin Permissions (#182)

Author: nplasterer

library/src/androidTest/java/org/xmtp/android/library/GroupTest.kt

@@ -17,6 +17,7 @@ import org.xmtp.android.library.codecs.ReactionSchema
 import org.xmtp.android.library.messages.PrivateKey
 import org.xmtp.android.library.messages.PrivateKeyBuilder
 import org.xmtp.android.library.messages.walletAddress
+import uniffi.xmtpv3.GroupPermissions
 
 @RunWith(AndroidJUnit4::class)
 class GroupTest {
@@ -57,9 +58,63 @@ class GroupTest {
     }
 
     @Test
-    fun testCanCreateAGroup() {
-        val group = boClient.conversations.newGroup(listOf(alix.walletAddress))
-        assert(group.id.isNotEmpty())
+    fun testCanCreateAGroupWithDefaultPermissions() {
+        val boGroup = boClient.conversations.newGroup(listOf(alix.walletAddress))
+        runBlocking { alixClient.conversations.syncGroups() }
+        val alixGroup = alixClient.conversations.listGroups().first()
+        assert(boGroup.id.isNotEmpty())
+        assert(alixGroup.id.isNotEmpty())
+
+        alixGroup.addMembers(listOf(caro.walletAddress))
+        runBlocking { boGroup.sync() }
+        assertEquals(alixGroup.memberAddresses().size, 3)
+        assertEquals(boGroup.memberAddresses().size, 3)
+
+        alixGroup.removeMembers(listOf(caro.walletAddress))
+        runBlocking { boGroup.sync() }
+        assertEquals(alixGroup.memberAddresses().size, 2)
+        assertEquals(boGroup.memberAddresses().size, 2)
+
+        boGroup.addMembers(listOf(caro.walletAddress))
+        runBlocking { alixGroup.sync() }
+        assertEquals(alixGroup.memberAddresses().size, 3)
+        assertEquals(boGroup.memberAddresses().size, 3)
+    }
+
+    @Test
+    fun testCanCreateAGroupWithAdminPermissions() {
+        val boGroup = boClient.conversations.newGroup(
+            listOf(alix.walletAddress),
+            permissions = GroupPermissions.GROUP_CREATOR_IS_ADMIN
+        )
+        runBlocking { alixClient.conversations.syncGroups() }
+        val alixGroup = alixClient.conversations.listGroups().first()
+        assert(boGroup.id.isNotEmpty())
+        assert(alixGroup.id.isNotEmpty())
+
+        boGroup.addMembers(listOf(caro.walletAddress))
+        runBlocking { alixGroup.sync() }
+        assertEquals(alixGroup.memberAddresses().size, 3)
+        assertEquals(boGroup.memberAddresses().size, 3)
+
+        assertThrows(XMTPException::class.java) {
+            alixGroup.removeMembers(listOf(caro.walletAddress))
+        }
+        runBlocking { boGroup.sync() }
+        assertEquals(alixGroup.memberAddresses().size, 3)
+        assertEquals(boGroup.memberAddresses().size, 3)
+
+        boGroup.removeMembers(listOf(caro.walletAddress))
+        runBlocking { alixGroup.sync() }
+        assertEquals(alixGroup.memberAddresses().size, 2)
+        assertEquals(boGroup.memberAddresses().size, 2)
+
+        assertThrows(XMTPException::class.java) {
+            alixGroup.addMembers(listOf(caro.walletAddress))
+        }
+        runBlocking { boGroup.sync() }
+        assertEquals(alixGroup.memberAddresses().size, 2)
+        assertEquals(boGroup.memberAddresses().size, 2)
     }
 
     @Test
@@ -241,22 +296,25 @@ class GroupTest {
     @Test
     fun testCanStreamGroupMessages() = kotlinx.coroutines.test.runTest {
         val group = boClient.conversations.newGroup(listOf(alix.walletAddress.lowercase()))
+        alixClient.conversations.syncGroups()
+        val alixGroup = alixClient.conversations.listGroups().first()
         group.streamMessages().test {
-            group.send("hi")
+            alixGroup.send("hi")
             assertEquals("hi", awaitItem().body)
-            group.send("hi again")
+            alixGroup.send("hi again")
             assertEquals("hi again", awaitItem().body)
         }
     }
 
     @Test
     fun testCanStreamDecryptedGroupMessages() = kotlinx.coroutines.test.runTest {
         val group = boClient.conversations.newGroup(listOf(alix.walletAddress))
-
+        alixClient.conversations.syncGroups()
+        val alixGroup = alixClient.conversations.listGroups().first()
         group.streamDecryptedMessages().test {
-            group.send("hi")
+            alixGroup.send("hi")
             assertEquals("hi", awaitItem().encodedContent.content.toStringUtf8())
-            group.send("hi again")
+            alixGroup.send("hi again")
             assertEquals("hi again", awaitItem().encodedContent.content.toStringUtf8())
         }
     }

library/src/main/java/org/xmtp/android/library/Client.kt

@@ -566,8 +566,7 @@ class Client() {
 
     fun canMessage(addresses: List<String>): Boolean {
         return runBlocking {
-            libXMTPClient != null && !libXMTPClient!!.canMessage(addresses.map { it })
-                .contains(false)
+            libXMTPClient != null && !libXMTPClient!!.canMessage(addresses).contains(false)
         }
     }
 

library/src/main/java/org/xmtp/android/library/Conversations.kt

@@ -39,6 +39,7 @@ import uniffi.xmtpv3.FfiConversationCallback
 import uniffi.xmtpv3.FfiConversations
 import uniffi.xmtpv3.FfiGroup
 import uniffi.xmtpv3.FfiListConversationsOptions
+import uniffi.xmtpv3.GroupPermissions
 import java.util.Date
 import kotlin.time.Duration.Companion.nanoseconds
 import kotlin.time.DurationUnit
@@ -91,7 +92,10 @@ data class Conversations(
         )
     }
 
-    fun newGroup(accountAddresses: List<String>): Group {
+    fun newGroup(
+        accountAddresses: List<String>,
+        permissions: GroupPermissions = GroupPermissions.EVERYONE_IS_ADMIN,
+    ): Group {
         if (accountAddresses.isEmpty()) {
             throw XMTPException("Cannot start an empty group chat.")
         }
@@ -105,7 +109,7 @@ data class Conversations(
         }
 
         val group = runBlocking {
-            libXMTPConversations?.createGroup(accountAddresses, permissions = null)
+            libXMTPConversations?.createGroup(accountAddresses, permissions = permissions)
                 ?: throw XMTPException("Client does not support Groups")
         }
         return Group(client, group)

library/src/main/java/org/xmtp/android/library/Group.kt

@@ -15,6 +15,7 @@ import uniffi.xmtpv3.FfiGroup
 import uniffi.xmtpv3.FfiListMessagesOptions
 import uniffi.xmtpv3.FfiMessage
 import uniffi.xmtpv3.FfiMessageCallback
+import java.lang.Exception
 import java.util.Date
 import kotlin.time.Duration.Companion.nanoseconds
 import kotlin.time.DurationUnit
@@ -133,11 +134,19 @@ class Group(val client: Client, private val libXMTPGroup: FfiGroup) {
     }
 
     fun addMembers(addresses: List<String>) {
-        runBlocking { libXMTPGroup.addMembers(addresses) }
+        try {
+            runBlocking { libXMTPGroup.addMembers(addresses) }
+        } catch (e: Exception) {
+            throw XMTPException("User does not have permissions", e)
+        }
     }
 
     fun removeMembers(addresses: List<String>) {
-        runBlocking { libXMTPGroup.removeMembers(addresses) }
+        try {
+            runBlocking { libXMTPGroup.removeMembers(addresses) }
+        } catch (e: Exception) {
+            throw XMTPException("User does not have permissions", e)
+        }
     }
 
     fun memberAddresses(): List<String> {