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JeneaVranceanuJeneaVranceanu
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feat: encoding query parameters for EIP681 - except tuples, this is still a TODO
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‎Sources/web3swift/Utils/EIP/EIP681.swift

Lines changed: 173 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -57,6 +57,179 @@ extension Web3 {
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self.isPayRequest = isPayRequest
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self.targetAddress = targetAddress
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}
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<<<<<<< HEAD
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=======
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public func makeEIP681Link() -> String? {
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let address: String
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switch targetAddress {
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case .ethereumAddress(let ethereumAddress):
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address = ethereumAddress.address
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case let .ensAddress(ensAdress):
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address = ensAdress
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}
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var link = "ethereum:\(address)\(chainID != nil ? "@\(chainID!.description)" : "")"
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if let functionName = functionName, !functionName.isEmpty {
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link = "\(link)/\(functionName)"
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}
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if !parameters.isEmpty {
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let queryParameters: [String] = parameters.compactMap { eip681Parameter in
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guard let queryValue = Web3
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.EIP681CodeEncoder
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.encodeFunctionArgument(eip681Parameter.type, eip681Parameter.value)
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else {
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return nil
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}
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return "\(eip681Parameter.type.abiRepresentation)=\(queryValue)"
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}
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if queryParameters.count == parameters.count {
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link = "\(link)?\(queryParameters.joined(separator: "&"))"
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}
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}
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return link
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}
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}
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public struct EIP681CodeEncoder {
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public static func encodeFunctionArgument(_ inputType: ABI.Element.ParameterType,
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_ rawValue: AnyObject) -> String? {
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switch inputType {
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case .address:
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if let ethAddress = rawValue as? EthereumAddress {
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return ethAddress.address
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}
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if let bytes = rawValue as? Data,
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let ethAddress = EthereumAddress(bytes) {
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return ethAddress.address
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}
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if let string = rawValue as? String {
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if let ethAddress = EthereumAddress(string) {
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return ethAddress.address
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}
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if let url = URL(string: string) {
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return string
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}
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}
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return nil
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case .uint(bits: _):
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let value: BigUInt?
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if let bigInt = rawValue as? BigInt {
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value = BigUInt(bigInt)
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} else if let bigUInt = rawValue as? BigUInt {
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value = bigUInt
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} else if let bytes = rawValue as? Data {
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value = BigUInt(bytes)
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} else if let string = rawValue as? String {
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value = BigUInt(string, radix: 10) ?? BigUInt(string.stripHexPrefix(), radix: 16)
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} else if let number = rawValue as? Int {
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value = BigUInt(exactly: number)
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} else if let number = rawValue as? Double {
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value = BigUInt(exactly: number)
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} else {
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value = nil
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}
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return value?.description
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case .int(bits: _):
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let value: BigInt?
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if let bigInt = rawValue as? BigInt {
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value = bigInt
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} else if let bigUInt = rawValue as? BigUInt {
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value = BigInt(bigUInt)
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} else if let bytes = rawValue as? Data {
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value = BigInt(bytes)
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} else if let string = rawValue as? String {
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value = BigInt(string, radix: 10) ?? BigInt(string.stripHexPrefix(), radix: 16)
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} else if let number = rawValue as? Int {
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value = BigInt(exactly: number)
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} else if let number = rawValue as? Double {
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value = BigInt(exactly: number)
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} else {
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value = nil
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}
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return value?.description
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case .string:
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if let bytes = rawValue as? Data,
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let string = String(data: bytes, encoding: .utf8) {
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return string
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} else if let string = rawValue as? String {
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return string
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}
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return nil
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case .dynamicBytes:
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if let bytes = rawValue as? Data {
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return bytes.toHexString().addHexPrefix()
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} else if let bytes = rawValue as? [UInt8] {
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return Data(bytes).toHexString().addHexPrefix()
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} else if let string = rawValue as? String {
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if let bytes = Data.fromHex(string) {
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return string.addHexPrefix()
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}
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return string.data(using: .utf8)?.toHexString().addHexPrefix()
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}
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return nil
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case let .bytes(length):
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var data: Data? = nil
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if let bytes = rawValue as? Data {
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data = bytes
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} else if let bytes = rawValue as? [UInt8] {
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data = Data(bytes)
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} else if let string = rawValue as? String {
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if let bytes = Data.fromHex(string) {
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data = bytes
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}
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data = string.data(using: .utf8)
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}
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if let data = data,
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data.count == length {
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return data.toHexString().addHexPrefix()
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}
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return nil
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case .bool:
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if let bool = rawValue as? Bool {
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return bool ? "true" : "false"
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}
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if let number = rawValue as? Int,
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let int = BigInt(exactly: number) {
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return int == 0 ? "false" : "true"
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}
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if let number = rawValue as? Double,
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let int = BigInt(exactly: number) {
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return int == 0 ? "false" : "true"
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}
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if let string = rawValue as? String {
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switch string.lowercased() {
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case "true", "yes", "1":
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return "true"
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default:
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return "false"
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}
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}
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if let bytes = rawValue as? Data {
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return bytes.count == 0 || bytes.count == 1 && bytes.first == 0 ? "false" : "true"
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}
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return nil
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case let .array(type, length):
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if let array = rawValue as? [AnyObject] {
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let mappedArray = array.compactMap { object in
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encodeFunctionArgument(type, object)
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}
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if length != 0 && UInt64(mappedArray.count) == length {
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return "[\(mappedArray.joined(separator: ","))]"
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} else if length == 0 && mappedArray.count == array.count {
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return "[\(mappedArray.joined(separator: ","))]"
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}
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}
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return nil
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case let .tuple(types):
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// TODO: implement!
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return nil
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default: return nil
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}
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}
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>>>>>>> 35c85fd7... feat: encoding query parameters for EIP681 - except tuples, this is still a TODO
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}
61234

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public struct EIP681CodeParser {

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