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@ -28,11 +28,11 @@ https://app.awallet.io/AA9CQFq1tAAAe+6CvdnoZrK9EUeApH8iYcaE4wECAwQFBgcICS+YK4TGN |
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import Foundation |
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import BigInt |
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private enum LinkFormat { |
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case unassigned |
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case normal |
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case spawnable |
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case customizable |
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enum LinkFormat: UInt8 { |
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case unassigned = 0x00 |
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case normal = 0x01 |
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case spawnable = 0x02 |
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case customizable = 0x03 |
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} |
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public class UniversalLinkHandler { |
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@ -65,14 +65,27 @@ public class UniversalLinkHandler { |
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let linkInfo = b64SafeEncodingToRegularEncoding(url.substring(from: urlPrefix.count)) |
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guard var linkBytes = Data(base64Encoded: linkInfo)?.array else { return nil } |
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let encodingByte = linkBytes[0] |
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switch encodingByte { |
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case Constants.oldFormat: break |
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if let format = LinkFormat(rawValue: encodingByte) { |
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switch format { |
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case .unassigned: |
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return handleUnSpawnableLink(linkBytes: linkBytes) |
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case .normal: |
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//new link format, remove extra byte and continue |
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case Constants.notSpawnable: linkBytes.remove(at: 0) |
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case Constants.spawnable: return handleSpawnableLink(linkBytes: linkBytes) |
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case Constants.customizable: return handleSpawnableLink(linkBytes: linkBytes) |
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default: break |
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linkBytes.remove(at: 0) |
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return handleUnSpawnableLink(linkBytes: linkBytes) |
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case .spawnable: |
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return handleSpawnableLink(linkBytes: linkBytes) |
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case .customizable: |
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return handleSpawnableLink(linkBytes: linkBytes) |
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} |
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} |
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else { |
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return nil |
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} |
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} |
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func handleUnSpawnableLink(linkBytes: [UInt8]) -> SignedOrder { |
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let price = getPriceFromLinkBytes(linkBytes: linkBytes) |
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let expiry = getExpiryFromLinkBytes(linkBytes: linkBytes) |
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let contractAddress = getContractAddressFromLinkBytes(linkBytes: linkBytes) |
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@ -113,17 +126,9 @@ public class UniversalLinkHandler { |
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} |
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func getTokenIdsFromSpawnableLink(linkBytes: [UInt8]) -> [BigUInt] { |
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let tokens = linkBytes[84..<linkBytes.count] |
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let tokenCount = tokens.count / 32 |
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var tokenIds = [BigUInt]() |
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var startPos: Int = 0 |
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for i in 0..<tokenCount { |
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let tokenId: [UInt8] = Array(tokens[startPos...32 * i]) |
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let tokenIdBigUInt = BigUInt(Data(bytes: tokenId)) |
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tokenIds.append(tokenIdBigUInt) |
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startPos += 32 |
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} |
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return tokenIds |
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let bytes = linkBytes[84..<linkBytes.count] |
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let tokenIds = bytes.split(separator: 32) |
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return tokenIds.map { BigUInt(Data(bytes: $0)) } |
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} |
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//we used a special encoding so that one 16 bit number could represent either one token or two |
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@ -175,12 +180,7 @@ public class UniversalLinkHandler { |
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for i in 0..<indices.count { |
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messageWithSzabo.append(indices[i]) |
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} |
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//append encodable byte to differiantiate between spawnable and index |
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//based links |
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//0x01: Standard magic link. |
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//0x02: Spawn token magic link. |
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//0x03: Customisable spawn token link. |
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messageWithSzabo.insert(0x01, at: 0) |
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messageWithSzabo.insert(LinkFormat.normal.rawValue, at: 0) |
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return MarketQueueHandler.bytesToHexa(messageWithSzabo) |
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} |
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