use SSZipArchive (#28)

use SSZipArchive

Keycard.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |spec|
 	spec.name = 'Keycard'
-	spec.version = '3.0.5'
+	spec.version = '3.0.6'
 	spec.authors = {'Bitgamma' => 'opensource@bitgamma.com'}
 	spec.homepage = 'https://github.com/status-im/Keycard.swift'
 	spec.license = { :type => 'Apache' }
@@ -12,5 +12,5 @@ Pod::Spec.new do |spec|
 	spec.frameworks = 'CoreNFC'
 	spec.dependency 'CryptoSwift'
 	spec.dependency 'secp256k1'
-	spec.dependency 'Zip'
+	spec.dependency 'SSZipArchive'
 end

Package.resolved

@@ -20,12 +20,12 @@
         }
       },
       {
-        "package": "Zip",
+        "package": "ZipArchive",
-        "repositoryURL": "https://github.com/marmelroy/Zip.git",
+        "repositoryURL": "https://github.com/ZipArchive/ZipArchive.git",
         "state": {
           "branch": null,
-          "revision": "67fa55813b9e7b3b9acee9c0ae501def28746d76",
+          "revision": "38e0ce0598e06b034271f296a8e15b149c91aa19",
-          "version": "2.1.2"
+          "version": "2.4.3"
         }
       }
     ]

Package.swift

@@ -17,14 +17,14 @@ let package = Package(
     dependencies: [
         .package(url: "https://github.com/status-im/secp256k1.swift.git", .branch("master")),
         .package(url: "https://github.com/krzyzanowskim/CryptoSwift.git", .upToNextMinor(from: "1.0.0")),
-        .package(url: "https://github.com/marmelroy/Zip.git", .upToNextMinor(from: "2.1.0"))
+        .package(url: "https://github.com/ZipArchive/ZipArchive.git", .upToNextMinor(from: "2.4.3"))
     ],
     targets: [
         // Targets are the basic building blocks of a package. A target can define a module or a test suite.
         // Targets can depend on other targets in this package, and on products in packages which this package depends on.
         .target(
             name: "Keycard",
-            dependencies: ["secp256k1", "CryptoSwift", "Zip"]),
+            dependencies: ["secp256k1", "CryptoSwift", "ZipArchive"]),
         .testTarget(
             name: "KeycardTests",
             dependencies: ["Keycard"]),

Sources/Keycard/FileLoader.swift

@@ -1,5 +1,5 @@
 import Foundation
-import Zip
+import SSZipArchive
 
 struct FileLoader {
     private static let blockSize = 247 // 255 - 8 bytes for MAC
@@ -25,8 +25,7 @@ struct FileLoader {
     }
 
     private static func unzipFileAndGetSubfilesURLs(fileURL: URL) throws -> [URL] {
-        Zip.addCustomFileExtension("cap")
+        let unzipDirectory = Self.quickUnzipFile(fileURL)
-        let unzipDirectory = try Zip.quickUnzipFile(fileURL)
         var files = [URL](repeating: unzipDirectory, count: fileNames.count)
         if let enumerator = FileManager.default.enumerator(at: unzipDirectory, includingPropertiesForKeys: [.isRegularFileKey], options: [.skipsHiddenFiles, .skipsPackageDescendants]) {
             for case let fileURL as URL in enumerator {
@@ -38,10 +37,23 @@ struct FileLoader {
             // Remove files that were not presen in the CAP file
             files = files.filter { $0 != unzipDirectory }
         }
+
         guard !files.isEmpty else { throw Error.fileIsEmpty }
         return files
     }
 
+    private static func quickUnzipFile(_ path: URL) -> URL {
+        let fileExtension = path.pathExtension
+        let fileName = path.lastPathComponent
+        let directoryName = fileName.replacingOccurrences(of: ".\(fileExtension)", with: "")
+        let documentsUrl = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
+
+        let destinationUrl = documentsUrl.appendingPathComponent(directoryName, isDirectory: true)
+        SSZipArchive.unzipFile(atPath: path.path, toDestination: destinationUrl.path)
+
+        return destinationUrl
+    }    
+
     private static func encodeFullLength(_ length: Int) throws -> [UInt8] {
         if length < 0x80 {
             return [UInt8(length)]