erc721 and 875 are now checked with proper encoding

AlphaWallet/Settings/Types/Constants.swift

@@ -50,7 +50,7 @@ public struct Constants {
     public static let rinkebyEtherscanContractDetailsWebPageURL = "https://rinkeby.etherscan.io/address/"
     
     //ERC specs
-    public static let erc721InterfaceHash = "0x80ac58cd"
+    public static let erc721InterfaceHash = "0x9a20483d"
 }
 
 public struct UnitConfiguration {

AlphaWallet/Tokens/Coordinators/GetIsERC721ContractCoordinator.swift

@@ -35,11 +35,8 @@ class GetIsERC721ContractCoordinator {
                         let request = GetIsERC721Decode(data: is721)
                         self?.web3.request(request: request) { result in
                             switch result {
-                            case .success(let isERC721):
-                                if isERC721 == "true" {
-                                    completion(.success(true))
-                                }
-                                completion(.success(false))
+                            case .success(let res):
+                                completion(.success(res.toBool()))
                             case .failure(let error):
                                 NSLog("getIsERC721Contract 3 error \(error)")
                                 completion(.failure(AnyError(error)))

AlphaWallet/Tokens/Coordinators/GetIsERC875ContractCoordinator.swift

@@ -30,8 +30,8 @@ class GetIsERC875ContractCoordinator {
                 )
                 Session.send(request2) { [weak self] result2 in
                     switch result2 {
-                    case .success(let balance):
-                        let request = GetIsERC875Decode(data: balance)
+                    case .success(let is875):
+                        let request = GetIsERC875Decode(data: is875)
                         self?.web3.request(request: request) { result in
                             switch result {
                             case .success(let res):

AlphaWallet/Vendors/New Group/Commands/GetIsERC721Encode.swift

@@ -22,7 +22,7 @@ struct GetIsERC721Decode: Web3Request {
     let data: String
 
     var type: Web3RequestType {
-        let run = "web3.eth.abi.decodeParameter('bool', '\(data)')"
+        let run = "web3.eth.abi.decodeParameter('uint256', '\(data)')"
         return .script(command: run)
     }
 }

AlphaWallet/Vendors/New Group/Commands/GetIsERC875Encode.swift

@@ -18,7 +18,7 @@ struct GetIsERC875Decode: Web3Request {
     let data: String
 
     var type: Web3RequestType {
-        let run = "web3.eth.abi.decodeParameter('bool', '\(data)')"
+        let run = "web3.eth.abi.decodeParameter('unit256', '\(data)')"
         return .script(command: run)
     }
 }

AlphaWallet/Vendors/New Group/Web3Swift.swift

@@ -12,7 +12,6 @@ class Web3Swift: NSObject {
     let url: URL
     var isLoaded = false
 
-   //"http://stormbird.duckdns.org:8545"
     init(url: URL = URL(string: "https://ropsten.infura.io/llyrtzQ3YhkdESt2Fzrk")!) {
         self.url = url
     }