fix: updated regex to check if message is probably SIWE - added \\n to SIWE domain regex

Author: JeneaVranceanu

Sources/web3swift/Utils/EIP/EIP4361.swift

@@ -82,7 +82,7 @@ public final class EIP4361 {
     }
 
     public static func validate(_ message: String) -> EIP4361ValidationResponse {
-        let siweConstantMessageRegex = try! NSRegularExpression(pattern: "^\(domain)")
+        let siweConstantMessageRegex = try! NSRegularExpression(pattern: "^\(domain)\\n")
         guard siweConstantMessageRegex.firstMatch(in: message, range: message.fullNSRange) != nil else {
             return EIP4361ValidationResponse(isEIP4361: false, eip4361: nil, capturedFields: [:])
         }

Tests/web3swiftTests/localTests/EIP4361Test.swift

@@ -85,7 +85,7 @@ class EIP4361Test: XCTestCase {
     }
 
     func test_invalidEIP4361_missingAddress() {
-        let rawSiweMessage = "service.invalid wants you to sign in with your Ethereum account:I accept the ServiceOrg Terms of Service: https://service.invalid/tos\n\nURI: https://service.invalid/login\nVersion: 1\nChain ID: 1\nNonce: 32891756\nIssued At: 2021-09-30T16:25:24.345Z\nExpiration Time: 2021-09-29T15:25:24.234Z\nNot Before: 2021-10-28T14:25:24.123Z\nRequest ID: random-request-id_STRING!@$%%&\nResources:\n- ipfs://bafybeiemxf5abjwjbikoz4mc3a3dla6ual3jsgpdr4cjr3oz3evfyavhwq/\n- https://example.com/my-web2-claim.json"
+        let rawSiweMessage = "service.invalid wants you to sign in with your Ethereum account:\nI accept the ServiceOrg Terms of Service: https://service.invalid/tos\n\nURI: https://service.invalid/login\nVersion: 1\nChain ID: 1\nNonce: 32891756\nIssued At: 2021-09-30T16:25:24.345Z\nExpiration Time: 2021-09-29T15:25:24.234Z\nNot Before: 2021-10-28T14:25:24.123Z\nRequest ID: random-request-id_STRING!@$%%&\nResources:\n- ipfs://bafybeiemxf5abjwjbikoz4mc3a3dla6ual3jsgpdr4cjr3oz3evfyavhwq/\n- https://example.com/my-web2-claim.json"
 
         let validationResponse = EIP4361.validate(rawSiweMessage)
         guard validationResponse.isEIP4361 && !validationResponse.isValid else {