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`wallet_addEthereumChain`, `wallet_switchEthereumChain`
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82 changes: 82 additions & 0 deletions
82
...main/java/io/horizontalsystems/bankwallet/modules/walletconnect/WCWalletRequestHandler.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,82 @@ | ||
| package io.horizontalsystems.bankwallet.modules.walletconnect | ||
|
|
||
| import android.util.Log | ||
| import com.google.gson.Gson | ||
| import com.google.gson.JsonParser | ||
| import com.walletconnect.web3.wallet.client.Wallet | ||
| import com.walletconnect.web3.wallet.client.Web3Wallet | ||
| import io.horizontalsystems.bankwallet.core.managers.EvmBlockchainManager | ||
| import io.horizontalsystems.ethereumkit.core.hexStringToIntOrNull | ||
|
|
||
| class WCWalletRequestHandler( | ||
| private val evmBlockchainManager: EvmBlockchainManager | ||
| ) { | ||
| private val gson by lazy { Gson() } | ||
|
|
||
| fun handle(sessionRequest: Wallet.Model.SessionRequest): Boolean { | ||
| try { | ||
| val request = sessionRequest.request | ||
| val params = JsonParser.parseString(sessionRequest.request.params).asJsonArray | ||
| val chain = gson.fromJson(params.first(), WalletConnectChain::class.java) | ||
|
|
||
| return when (request.method) { | ||
| "wallet_addEthereumChain", | ||
| "wallet_switchEthereumChain" -> { | ||
| val blockchain = chain.chainId.hexStringToIntOrNull()?.let { evmBlockchainManager.getBlockchain(it) } | ||
| if (blockchain != null) { | ||
| val response = Wallet.Params.SessionRequestResponse( | ||
| sessionTopic = sessionRequest.topic, | ||
| jsonRpcResponse = Wallet.Model.JsonRpcResponse.JsonRpcResult( | ||
| id = request.id, | ||
| result = "null" | ||
| ) | ||
| ) | ||
| Web3Wallet.respondSessionRequest( | ||
| params = response, | ||
| onSuccess = {}, | ||
| onError = { error -> | ||
| Log.e("WCWalletHandler", "${request.method} response error: $error") | ||
| }) | ||
|
|
||
| } else { | ||
| val result = Wallet.Params.SessionRequestResponse( | ||
| sessionTopic = sessionRequest.topic, | ||
| jsonRpcResponse = Wallet.Model.JsonRpcResponse.JsonRpcError( | ||
| id = request.id, | ||
| code = 4902, | ||
| message = "Unrecognized chain ID" | ||
| ) | ||
| ) | ||
| Web3Wallet.respondSessionRequest(result, | ||
| onSuccess = {}, | ||
| onError = { error -> | ||
| Log.e("WCWalletHandler", "${request.method} response error: $error") | ||
| }) | ||
| } | ||
|
|
||
| true | ||
| } | ||
|
|
||
| else -> false | ||
| } | ||
| } catch (error: Throwable) { | ||
| return false | ||
| } | ||
| } | ||
|
|
||
| data class WalletConnectChain( | ||
| val chainId: String, | ||
| val chainName: String?, | ||
| val rpcUrls: List<String>?, | ||
| val iconUrls: List<String>?, | ||
| val nativeCurrency: WalletConnectNativeCurrency?, | ||
| val blockExplorerUrls: List<String>?, | ||
| ) | ||
|
|
||
| data class WalletConnectNativeCurrency( | ||
| val name: String, | ||
| val symbol: String, | ||
| val decimals: Int, | ||
| ) | ||
|
|
||
| } |
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