Remove legacy sign method (#171)

* remove legacy sign method

* bump to the latest xmtp

* fix the 23

* fix the signing logic

* fix linter

* fix tests

Author: nplasterer

example/src/main/java/org/xmtp/android/example/account/WalletConnectV2Account.kt

@@ -26,34 +26,10 @@ data class WalletConnectV2Account(
         )
 
     override suspend fun sign(data: ByteArray): SignatureOuterClass.Signature? {
-        return signLegacy(String(data))
+        return sign(String(data))
     }
 
-    override fun sign(text: String): ByteArray {
-        val (parentChain, chainId, account) = session.namespaces.getValue(chain).accounts[0].split(":")
-        val requestParams = session.namespaces.getValue(chain).methods.find { method ->
-            method == "personal_sign"
-        }?.let { method ->
-            Modal.Params.Request(
-                sessionTopic = session.topic,
-                method = method,
-                params = getPersonalSignBody(text, account),
-                chainId = "$parentChain:$chainId"
-            )
-        }
-
-        runCatching {
-            runBlocking {
-                requestMethod(requestParams!!, sendSessionRequestDeepLink).first().getOrThrow()
-            }
-        }.onSuccess {
-            return it
-        }.onFailure {}
-
-        return byteArrayOf()
-    }
-
-    override suspend fun signLegacy(message: String): SignatureOuterClass.Signature? {
+    override suspend fun sign(message: String): SignatureOuterClass.Signature? {
         val (parentChain, chainId, account) = session.namespaces.getValue(chain).accounts[0].split(":")
         val requestParams = session.namespaces.getValue(chain).methods.find { method ->
             method == "personal_sign"

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

@@ -47,12 +47,8 @@ class FakeWallet : SigningKey {
         return signature
     }
 
-    override fun sign(text: String): ByteArray {
-        return privateKeyBuilder.sign(text)
-    }
-
-    override suspend fun signLegacy(message: String): Signature {
-        val signature = privateKeyBuilder.signLegacy(message)
+    override suspend fun sign(message: String): Signature {
+        val signature = privateKeyBuilder.sign(message)
         return signature
     }
 

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

@@ -33,6 +33,7 @@ import org.xmtp.android.library.messages.encrypted
 import org.xmtp.android.library.messages.ensureWalletSignature
 import org.xmtp.android.library.messages.generate
 import org.xmtp.android.library.messages.getPublicKeyBundle
+import org.xmtp.android.library.messages.rawData
 import org.xmtp.android.library.messages.recoverWalletSignerPublicKey
 import org.xmtp.android.library.messages.toPublicKeyBundle
 import org.xmtp.android.library.messages.toV2
@@ -335,14 +336,16 @@ class Client() {
                 null
             }
 
-        if (v3Client?.textToSign() == null) {
-            v3Client?.registerIdentity(null)
-        } else if (account != null) {
-            v3Client.textToSign()?.let {
-                v3Client.registerIdentity(account.sign(it))
+        if (v3Client != null) {
+            if (v3Client.textToSign() == null) {
+                v3Client.registerIdentity(null)
+            } else if (account != null) {
+                v3Client.textToSign()?.let {
+                    v3Client.registerIdentity(account.sign(it)?.rawData)
+                }
+            } else {
+                throw XMTPException("No signer passed but signer was required.")
             }
-        } else {
-            Log.i(TAG, "No signer passed but signer was required.")
         }
 
         return v3Client

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

@@ -21,9 +21,7 @@ interface SigningKey {
 
     suspend fun sign(data: ByteArray): SignatureOuterClass.Signature?
 
-    suspend fun signLegacy(message: String): SignatureOuterClass.Signature?
-
-    fun sign(text: String): ByteArray
+    suspend fun sign(message: String): SignatureOuterClass.Signature?
 }
 
 /**
@@ -52,7 +50,7 @@ fun SigningKey.createIdentity(
     val signatureClass = Signature.newBuilder().build()
     val signatureText = signatureClass.createIdentityText(key = slimKey.toByteArray())
     val digest = signatureClass.ethHash(message = signatureText)
-    val signature = runBlocking { signLegacy(signatureText) } ?: throw XMTPException("Illegal signature")
+    val signature = runBlocking { sign(signatureText) } ?: throw XMTPException("Illegal signature")
 
     val signatureData = KeyUtil.getSignatureData(signature.rawData.toByteString().toByteArray())
     val publicKey = Sign.recoverFromSignature(

library/src/main/java/org/xmtp/android/library/messages/EncryptedPrivateKeyBundle.kt

@@ -19,7 +19,7 @@ fun EncryptedPrivateKeyBundle.decrypted(
     }
 
     val signature = runBlocking {
-        key.signLegacy(
+        key.sign(
             message = Signature.newBuilder().build()
                 .enableIdentityText(key = v1.walletPreKey.toByteArray()),
         )

library/src/main/java/org/xmtp/android/library/messages/PrivateKey.kt

@@ -9,7 +9,6 @@ import org.xmtp.android.library.KeyUtil
 import org.xmtp.android.library.SigningKey
 import org.xmtp.proto.message.contents.PublicKeyOuterClass
 import org.xmtp.proto.message.contents.SignatureOuterClass
-import java.nio.charset.StandardCharsets
 import java.security.SecureRandom
 import java.util.Date
 
@@ -93,16 +92,7 @@ class PrivateKeyBuilder : SigningKey {
         }.build()
     }
 
-    override fun sign(text: String): ByteArray {
-        val messageBytes: ByteArray = text.toByteArray(StandardCharsets.UTF_8)
-        val signature = Sign.signPrefixedMessage(
-            messageBytes,
-            ECKeyPair.create(privateKey.secp256K1.bytes.toByteArray())
-        )
-        return signature.r + signature.s + signature.v
-    }
-
-    override suspend fun signLegacy(message: String): SignatureOuterClass.Signature {
+    override suspend fun sign(message: String): SignatureOuterClass.Signature {
         val digest = Signature.newBuilder().build().ethHash(message)
         return sign(digest)
     }

library/src/main/java/org/xmtp/android/library/messages/PrivateKeyBundle.kt

@@ -36,7 +36,7 @@ fun PrivateKeyBundle.encrypted(
 
     val signature =
         runBlocking {
-            key.signLegacy(
+            key.sign(
                 message = Signature.newBuilder().build().enableIdentityText(key = walletPreKey)
             )
         } ?: throw XMTPException("Illegal signature")

library/src/main/jniLibs/arm64-v8a/libuniffi_xmtpv3.so

@@ -47,12 +47,8 @@ class FakeWallet : SigningKey {
         return signature
     }
 
-    override fun sign(text: String): ByteArray {
-        return privateKeyBuilder.sign(text)
-    }
-
-    override suspend fun signLegacy(message: String): Signature {
-        val signature = privateKeyBuilder.signLegacy(message)
+    override suspend fun sign(message: String): Signature {
+        val signature = privateKeyBuilder.sign(message)
         return signature
     }