feat: sign messages

solwave/build.gradle.kts

@@ -1,3 +1,5 @@
+import java.util.Properties
+
 plugins {
  id("maven-publish")
  id("com.android.library")
@@ -18,6 +20,19 @@ android {
  vectorDrawables {
  useSupportLibrary = true
  }
+
+ val localProperties = Properties()
+ val localPropertiesFile = rootProject.file("local.properties")
+ if (localPropertiesFile.exists()) {
+ localProperties.load(localPropertiesFile.inputStream())
+ }
+
+ buildConfigField("String", "BASE_URL", "\"${localProperties.getProperty("BASE_URL")}\"")
+ buildConfigField("String", "INITIATE_LOGIN", "\"${localProperties.getProperty("INITIATE_LOGIN")}\"")
+ buildConfigField("String", "INITIATE_CREATION", "\"${localProperties.getProperty("INITIATE_CREATION")}\"")
+ buildConfigField("String", "INITIATE_TRANSACTION", "\"${localProperties.getProperty("INITIATE_TRANSACTION")}\"")
+ buildConfigField("String", "SIMULATE_TRANSACTION", "\"${localProperties.getProperty("SIMULATE_TRANSACTION")}\"")
+ buildConfigField("String", "SIGN_MESSAGE", "\"${localProperties.getProperty("SIGN_MESSAGE")}\"")
  }
 
  buildTypes {
@@ -38,6 +53,7 @@ android {
  }
  buildFeatures {
  compose = true
+ buildConfig = true
  }
  composeOptions {
  kotlinCompilerExtensionVersion = "1.4.3"

solwave/src/main/java/com/saganize/solwave/Solwave.kt

@@ -2,8 +2,10 @@ package com.saganize.solwave
 
 import android.content.Context
 import android.content.Intent
+import android.util.Log
 import androidx.annotation.Keep
 import com.google.firebase.FirebaseApp
+import com.saganize.solwave.core.di.TAG
 import com.saganize.solwave.core.models.CompleteEvents
 import com.saganize.solwave.core.models.EventKeys
 import com.saganize.solwave.core.models.FIREBASE_NOT_INITIALIZED
@@ -38,6 +40,25 @@ class Solwave(
  context.startActivity(intent)
  }
 
+ fun signMessage(
+ message: String,
+ onSuccess: (result: String) -> Unit,
+ onFailure: (error: SolwaveErrors) -> Unit,
+ ) {
+ if (validateMessage(message).not()) {
+ onFailure(SolwaveErrors.InvalidSigningMessage)
+ return
+ }
+ val intent = createIntent(
+ StartEvents.SIGN_MESSAGE,
+ message = message,
+ onSuccess = onSuccess,
+ onFailure = onFailure,
+ )
+
+ context.startActivity(intent)
+ }
+
  fun performTransaction(
  transaction: Transaction,
  onSuccess: (result: String) -> Unit,
@@ -62,6 +83,7 @@ class Solwave(
 
  private fun createIntent(
  startEvent: StartEvents,
+ message: String? = null,
  serializedTransaction: String? = null,
  onSuccess: (result: String) -> Unit,
  onFailure: (error: SolwaveErrors) -> Unit,
@@ -72,6 +94,7 @@ class Solwave(
  putExtra(EventKeys.START.key, startEvent.event)
  putExtra(EventKeys.API_KEY.key, apiKey)
  // putExtra(EventKeys.EVENT.key, CompleteEvents(onSuccess, onFailure))
+ message?.let { putExtra(EventKeys.MESSAGE.key, it) }
  serializedTransaction?.let { putExtra(EventKeys.TRANSACTION.key, it) }
  }
  return intent
@@ -84,4 +107,17 @@ class Solwave(
  throw IllegalStateException(FIREBASE_NOT_INITIALIZED)
  }
  }
+
+ private fun validateMessage(message: String): Boolean {
+ if ((message.length <= SIGNING_MESSAGE_MAX_LENGTH).not()) {
+ Log.e(TAG, "Message length is greater than $SIGNING_MESSAGE_MAX_LENGTH")
+ return false
+ }
+
+ return true
+ }
+
+ companion object {
+ const val SIGNING_MESSAGE_MAX_LENGTH = 300
+ }
 }

solwave/src/main/java/com/saganize/solwave/SolwaveActivity.kt

@@ -41,6 +41,13 @@ class SolwaveActivity : ComponentActivity() {
  val apiKey = intent.getStringExtra(EventKeys.API_KEY.key)
  ?: throw IllegalStateException(SolwaveErrors.NoApiKeyPassedMessage.message)
 
+ val message = if (start == StartEvents.SIGN_MESSAGE.event) {
+ intent.getStringExtra(EventKeys.MESSAGE.key)
+ ?: throw IllegalStateException(SolwaveErrors.NoMessagePassedMessage.message)
+ } else {
+ ""
+ }
+
  val transactionString = if (start == StartEvents.PAY.event) {
  intent.getStringExtra(EventKeys.TRANSACTION.key)
  ?: throw IllegalStateException(SolwaveErrors.NoTransactionPassedMessage.message)
@@ -61,6 +68,7 @@ class SolwaveActivity : ComponentActivity() {
  SolwaveViewModel(
  module.usecases,
  start,
+ message = message,
  transactionString.toTransaction(),
  apiKey,
  completeEvents,

solwave/src/main/java/com/saganize/solwave/core/di/SolwaveAppModule.kt

@@ -11,13 +11,15 @@ import com.saganize.solwave.data.remote.SolwaveAPI
 import com.saganize.solwave.domain.repository.ApiRepository
 import com.saganize.solwave.domain.repository.DataStoreRepository
 import com.saganize.solwave.domain.repository.DatabaseRepository
+import com.saganize.solwave.domain.usecases.GenerateSignMessage
 import com.saganize.solwave.domain.usecases.GetBalance
 import com.saganize.solwave.domain.usecases.GetEncryptionKeyPair
 import com.saganize.solwave.domain.usecases.GetLatestBlockHash
 import com.saganize.solwave.domain.usecases.GetWallets
 import com.saganize.solwave.domain.usecases.GetWalletsPreference
 import com.saganize.solwave.domain.usecases.InitiateCreateUser
 import com.saganize.solwave.domain.usecases.InitiateLogin
+import com.saganize.solwave.domain.usecases.InitiateSignMessage
 import com.saganize.solwave.domain.usecases.InitiateTransaction
 import com.saganize.solwave.domain.usecases.SaveEncryptionKeyPair
 import com.saganize.solwave.domain.usecases.SaveWallet
@@ -84,6 +86,8 @@ class SolwaveAppModuleImpl(
  InitiateCreateUser(apiRepository),
  InitiateLogin(apiRepository),
  InitiateTransaction(apiRepository),
+ InitiateSignMessage(apiRepository),
+ GenerateSignMessage(),
  )
  }
 }

solwave/src/main/java/com/saganize/solwave/core/events/SolwaveAuthNavEvents.kt

@@ -27,6 +27,10 @@ sealed class SolwaveAuthNavEvents {
  data class InitiateTransaction(
  val context: Context,
  val user: Transaction?,
- ) :
- SolwaveAuthNavEvents()
+ ) : SolwaveAuthNavEvents()
+
+ data class InitiateSignMessage(
+ val context: Context,
+ val publicKey: String,
+ ) : SolwaveAuthNavEvents()
 }

solwave/src/main/java/com/saganize/solwave/core/events/SolwaveEvents.kt

@@ -25,11 +25,21 @@ sealed class SolwaveEvents {
 
  data class PayUsingWallet(val openDeepLink: () -> Unit = {}) : SolwaveEvents()
  data class DecryptTransactionResult(val data: String, val nonce: String) : SolwaveEvents()
+
+ data class DecryptSignedMessageResult(val data: String, val nonce: String) : SolwaveEvents()
+
+ data class MessageSigned(val signature: String, val messageBytes: String) : SolwaveEvents()
  data class TransactionDone(val id: String) : SolwaveEvents()
  data class Error(
  val title: String? = null,
  val error: SolwaveErrors,
  val closeWebView: Boolean = false,
  ) : SolwaveEvents()
+
  data class TransactionFailed(val error: SolwaveErrors) : SolwaveEvents()
+
+ data class SignMessageUsingWallet(
+ val message: String,
+ val openDeepLink: () -> Unit = {},
+ ) : SolwaveEvents()
 }

solwave/src/main/java/com/saganize/solwave/core/models/DisplayFormat.kt

@@ -0,0 +1,6 @@
+package com.saganize.solwave.core.models
+
+enum class DisplayFormat(val format: String) {
+ UTF8("utf8"),
+ HEX("hex"),
+}

solwave/src/main/java/com/saganize/solwave/core/models/EventKeys.kt

@@ -3,5 +3,6 @@ package com.saganize.solwave.core.models
 enum class EventKeys(val key: String) {
  START("start"),
  API_KEY("apiKey"),
+ MESSAGE("message"),
  TRANSACTION("transaction"),
 }

solwave/src/main/java/com/saganize/solwave/core/models/Screens.kt

@@ -9,6 +9,7 @@ sealed class Screens {
  object SignupScreen : Screens()
  object WalletScreen : Screens()
  data class PayScreen(val transactionParams: TransactionParams) : Screens()
+ data class SignMessageScreen(val message: String) : Screens()
  object NoFundsScreen : Screens()
  object TransactionDoneScreen : Screens()
  object TransactionFailedScreen : Screens()

solwave/src/main/java/com/saganize/solwave/core/models/SolwaveErrors.kt

@@ -1,5 +1,7 @@
 package com.saganize.solwave.core.models
 
+import com.saganize.solwave.Solwave
+
 enum class SolwaveErrors(var message: String) {
  NoInternetConnectionMessage(NO_INTERNET),
  GenericErrorMsg(GENERIC_ERROR),
@@ -10,10 +12,13 @@ enum class SolwaveErrors(var message: String) {
  InitLoginErrorMessage(INIT_LOGIN_USER_ERROR),
  WebviewErrorMessage(WEBVIEW_ERROR),
  InitiateTransactionErrorMessage(INITIATE_TRANSACTION_ERROR),
+ InitiateSignMessageErrorMessage(INITIATE_SIGN_MESSAGE_ERROR),
+ InvalidSigningMessage(INVALID_SIGNING_MESSAGE_LENGTH),
  InvalidTransactionMessage(INVALID_TRANSACTION),
  NoStartEventMessage(NO_START_EVENT),
  NoApiKeyPassedMessage(NO_API_KEY_PASSED),
  NoTransactionPassedMessage(NO_TRANSACTION_PASSED),
+ NoMessagePassedMessage(NO_MESSAGE_PASSED),
  NoWalletSelectedMessage(NO_WALLET_SELECTED),
  ;
 
@@ -43,12 +48,18 @@ const val INIT_LOGIN_USER_ERROR =
  "Unable to login user at the moment. Please try again later."
 const val INITIATE_TRANSACTION_ERROR =
  "Unable to initiate transaction at the moment. Please try again later."
+const val INITIATE_SIGN_MESSAGE_ERROR =
+ "Unable to initiate sign message at the moment. Please try again later."
+const val INVALID_SIGNING_MESSAGE_LENGTH =
+ "Message length is greater than ${Solwave.SIGNING_MESSAGE_MAX_LENGTH}"
 const val WEBVIEW_ERROR = GENERIC_ERROR
 
 const val NO_START_EVENT = "No start event found. Illegal state."
 const val NO_API_KEY_PASSED = "No API key passed. Please pass API key to use the library."
 const val NO_TRANSACTION_PASSED =
  "No transaction passed. Please pass transaction to use the function."
+const val NO_MESSAGE_PASSED =
+ "No message passed. Please pass message to use the function."
 
 const val INVALID_TRANSACTION = "Invalid transaction. Please pass a valid transaction."
 

solwave/src/main/java/com/saganize/solwave/core/models/StartEvents.kt

@@ -3,4 +3,5 @@ package com.saganize.solwave.core.models
 enum class StartEvents(val event: String) {
  PAY("pay"),
  SELECT("select"),
+ SIGN_MESSAGE("signMessage"),
 }

solwave/src/main/java/com/saganize/solwave/core/util/BackendEndpoints.kt

@@ -1,16 +1,18 @@
 package com.saganize.solwave.core.util
 
+import com.saganize.solwave.BuildConfig
+
 object BackendEndpoints {
- // RETROFIT requires trailing slash :/
- const val BASE_URL: String = "***REMOVED***"
+ const val BASE_URL: String = BuildConfig.BASE_URL
 
  object Auth {
- const val INITIATE_LOGIN = "***REMOVED***"
- const val INITIATE_CREATION = "***REMOVED***"
+ const val INITIATE_LOGIN = BuildConfig.INITIATE_LOGIN
+ const val INITIATE_CREATION = BuildConfig.INITIATE_CREATION
  }
 
  object Transaction {
- const val INITIATE_TRANSACTION = "***REMOVED***"
- const val SIMULATE_TRANSACTION = "***REMOVED***"
+ const val INITIATE_TRANSACTION = BuildConfig.INITIATE_TRANSACTION
+ const val SIMULATE_TRANSACTION = BuildConfig.SIMULATE_TRANSACTION
+ const val SIGN_MESSAGE = BuildConfig.SIGN_MESSAGE
  }
 }

solwave/src/main/java/com/saganize/solwave/data/remote/ApiRepositoryImpl.kt

@@ -2,9 +2,11 @@ package com.saganize.solwave.data.remote
 
 import com.saganize.solwave.data.remote.model.NetworkResponse
 import com.saganize.solwave.data.remote.model.requests.InitiateAuthRequest
+import com.saganize.solwave.data.remote.model.requests.InitiateSignMessageRequest
 import com.saganize.solwave.data.remote.model.requests.InitiateTransactionRequest
 import com.saganize.solwave.data.remote.model.requests.SimulateTransactionRequest
 import com.saganize.solwave.data.remote.model.response.InitiateAuthResponse
+import com.saganize.solwave.data.remote.model.response.InitiateSignMessageResponse
 import com.saganize.solwave.data.remote.model.response.InitiateTransactionResponse
 import com.saganize.solwave.data.remote.model.response.SimulateTransactionResponse
 import com.saganize.solwave.domain.repository.ApiRepository
@@ -46,4 +48,12 @@ class ApiRepositoryImpl(
  api = apiKey,
  )
  }
+
+ override suspend fun initiateSignMessage(requestBody: InitiateSignMessageRequest):
+ Response<NetworkResponse<List<InitiateSignMessageResponse>>> {
+ return api.initiateSignMessage(
+ requestBody = requestBody,
+ api = apiKey,
+ )
+ }
 }

solwave/src/main/java/com/saganize/solwave/data/remote/SolwaveAPI.kt

@@ -4,9 +4,11 @@ import androidx.annotation.Keep
 import com.saganize.solwave.core.util.BackendEndpoints
 import com.saganize.solwave.data.remote.model.NetworkResponse
 import com.saganize.solwave.data.remote.model.requests.InitiateAuthRequest
+import com.saganize.solwave.data.remote.model.requests.InitiateSignMessageRequest
 import com.saganize.solwave.data.remote.model.requests.InitiateTransactionRequest
 import com.saganize.solwave.data.remote.model.requests.SimulateTransactionRequest
 import com.saganize.solwave.data.remote.model.response.InitiateAuthResponse
+import com.saganize.solwave.data.remote.model.response.InitiateSignMessageResponse
 import com.saganize.solwave.data.remote.model.response.InitiateTransactionResponse
 import com.saganize.solwave.data.remote.model.response.SimulateTransactionResponse
 import retrofit2.Response
@@ -40,4 +42,10 @@ interface SolwaveAPI {
  @Header("api") api: String,
  @Body requestBody: SimulateTransactionRequest,
  ): Response<NetworkResponse<List<SimulateTransactionResponse>>>
+
+ @POST(BackendEndpoints.Transaction.SIGN_MESSAGE)
+ suspend fun initiateSignMessage(
+ @Header("api") api: String,
+ @Body requestBody: InitiateSignMessageRequest,
+ ): Response<NetworkResponse<List<InitiateSignMessageResponse>>>
 }

solwave/src/main/java/com/saganize/solwave/data/remote/model/requests/InitiateSignMessageRequest.kt

@@ -0,0 +1,10 @@
+package com.saganize.solwave.data.remote.model.requests
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class InitiateSignMessageRequest(
+ @SerialName("publicKey")
+ val publicKey: String,
+)

solwave/src/main/java/com/saganize/solwave/data/remote/model/response/InitiateSignMessageResponse.kt

@@ -0,0 +1,16 @@
+package com.saganize.solwave.data.remote.model.response
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class InitiateSignMessageResponse(
+ @SerialName("idempotencyId")
+ val idempotencyId: String,
+ @SerialName("authToken")
+ val authToken: String,
+ @SerialName("rsaPublicKey")
+ val rsaPublicKey: String,
+ @SerialName("url")
+ val url: String,
+)

solwave/src/main/java/com/saganize/solwave/domain/repository/ApiRepository.kt

@@ -2,9 +2,11 @@ package com.saganize.solwave.domain.repository
 
 import com.saganize.solwave.data.remote.model.NetworkResponse
 import com.saganize.solwave.data.remote.model.requests.InitiateAuthRequest
+import com.saganize.solwave.data.remote.model.requests.InitiateSignMessageRequest
 import com.saganize.solwave.data.remote.model.requests.InitiateTransactionRequest
 import com.saganize.solwave.data.remote.model.requests.SimulateTransactionRequest
 import com.saganize.solwave.data.remote.model.response.InitiateAuthResponse
+import com.saganize.solwave.data.remote.model.response.InitiateSignMessageResponse
 import com.saganize.solwave.data.remote.model.response.InitiateTransactionResponse
 import com.saganize.solwave.data.remote.model.response.SimulateTransactionResponse
 import retrofit2.Response
@@ -22,4 +24,7 @@ interface ApiRepository {
 
  suspend fun simulateTransaction(@Body requestBody: SimulateTransactionRequest):
  Response<NetworkResponse<List<SimulateTransactionResponse>>>
+
+ suspend fun initiateSignMessage(@Body requestBody: InitiateSignMessageRequest):
+ Response<NetworkResponse<List<InitiateSignMessageResponse>>>
 }