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wireguard-apple
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Importing: Refactor out zip importing into a separate class 

Signed-off-by: Roopesh Chander <roop@roopc.net>
This commit is contained in:
Roopesh Chander 2018-11-14 18:52:10 +05:30
parent 2676ee0169
commit 203d6b4596
4 changed files with 69 additions and 43 deletions
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4
WireGuard/WireGuard.xcodeproj/project.pbxproj
View File

@ -38,6 +38,7 @@
6FDEF802218646BA00D8FBF6 /* ZipArchive.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FDEF801218646B900D8FBF6 /* ZipArchive.swift */; };
6FDEF806218725D200D8FBF6 /* SettingsTableViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FDEF805218725D200D8FBF6 /* SettingsTableViewController.swift */; };
6FDEF8082187442100D8FBF6 /* WgQuickConfigFileWriter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FDEF8072187442100D8FBF6 /* WgQuickConfigFileWriter.swift */; };
6FE254FB219C10800028284D /* ZipImporter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FE254FA219C10800028284D /* ZipImporter.swift */; };
6FF4AC1F211EC472002C96EB /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 6FF4AC1E211EC472002C96EB /* Assets.xcassets */; };
6FF4AC22211EC472002C96EB /* LaunchScreen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 6FF4AC20211EC472002C96EB /* LaunchScreen.storyboard */; };
6FFA5D8921942F320001E2F7 /* PacketTunnelSettingsGenerator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6F5D0C472183C6A3000F85AD /* PacketTunnelSettingsGenerator.swift */; };
@ -125,6 +126,7 @@
6FDEF801218646B900D8FBF6 /* ZipArchive.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ZipArchive.swift; sourceTree = "<group>"; };
6FDEF805218725D200D8FBF6 /* SettingsTableViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SettingsTableViewController.swift; sourceTree = "<group>"; };
6FDEF8072187442100D8FBF6 /* WgQuickConfigFileWriter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = WgQuickConfigFileWriter.swift; sourceTree = "<group>"; };
6FE254FA219C10800028284D /* ZipImporter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ZipImporter.swift; sourceTree = "<group>"; };
6FF4AC14211EC46F002C96EB /* WireGuard.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = WireGuard.app; sourceTree = BUILT_PRODUCTS_DIR; };
6FF4AC1E211EC472002C96EB /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
6FF4AC21211EC472002C96EB /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; name = Base; path = Base.lproj/LaunchScreen.storyboard; sourceTree = "<group>"; };
@ -266,6 +268,7 @@
6FDEF7E72186320E00D8FBF6 /* ZipArchive */ = {
isa = PBXGroup;
children = (
6FE254FA219C10800028284D /* ZipImporter.swift */,
6FDEF801218646B900D8FBF6 /* ZipArchive.swift */,
6FDEF7F421863B6100D8FBF6 /* 3rdparty */,
);
@ -529,6 +532,7 @@
6F628C3D217F09E9003482A3 /* TunnelViewModel.swift in Sources */,
6F919EC3218A2AE90023B400 /* ErrorPresenter.swift in Sources */,
6FDEF8082187442100D8FBF6 /* WgQuickConfigFileWriter.swift in Sources */,
6FE254FB219C10800028284D /* ZipImporter.swift in Sources */,
6F7774EA217229DB006A79B3 /* IPAddressRange.swift in Sources */,
6F7774E82172020C006A79B3 /* Configuration.swift in Sources */,
6FDEF7FB21863B6100D8FBF6 /* unzip.c in Sources */,

8
WireGuard/WireGuard/UI/iOS/ErrorPresenter.swift
View File

@ -24,6 +24,14 @@ class ErrorPresenter {
case TunnelActivationError.tunnelActivationFailed:
return ("Activation failure", "The tunnel could not be activated due to an internal error")
// Importing a zip file
case ZipArchiveError.cantOpenInputZipFile:
return ("Unable to read zip archive", "The zip archive could not be read.")
case ZipArchiveError.badArchive:
return ("Unable to read zip archive", "Bad or corrupt zip archive.")
case ZipImporterError.noTunnelsInZipArchive:
return ("No tunnels in zip archive", "No .conf tunnel files were found inside the zip archive.")
default:
os_log("ErrorPresenter: Error not presented: %{public}@", log: OSLog.default, type: .error, "\(error)")
return nil

52
WireGuard/WireGuard/UI/iOS/TunnelsListTableViewController.swift
View File

@ -158,62 +158,28 @@ class TunnelsListTableViewController: UIViewController {
}
func importFromFile(url: URL) {
guard let tunnelsManager = tunnelsManager else { return }
if (url.pathExtension == "zip") {
var unarchivedFiles: [(fileName: String, contents: Data)] = []
let zipImporter = ZipImporter(url: url)
let configs: [TunnelConfiguration?]
do {
unarchivedFiles = try ZipArchive.unarchive(url: url, requiredFileExtensions: ["conf"])
} catch ZipArchiveError.cantOpenInputZipFile {
showErrorAlert(title: "Unable to read zip archive", message: "The zip archive could not be read.")
return
} catch ZipArchiveError.badArchive {
showErrorAlert(title: "Unable to read zip archive", message: "Bad or corrupt zip archive.")
return
configs = try zipImporter.importConfigFiles()
} catch (let error) {
showErrorAlert(title: "Unable to read zip archive", message: "Unexpected error: \(String(describing: error))")
ErrorPresenter.showErrorAlert(error: error, from: self)
return
}
for (i, unarchivedFile) in unarchivedFiles.enumerated().reversed() {
let fileBaseName = URL(string: unarchivedFile.fileName)?.deletingPathExtension().lastPathComponent
if let trimmedName = fileBaseName?.trimmingCharacters(in: .whitespacesAndNewlines), !trimmedName.isEmpty {
unarchivedFiles[i].fileName = trimmedName
} else {
unarchivedFiles.remove(at: i)
}
}
if (unarchivedFiles.isEmpty) {
showErrorAlert(title: "No tunnels in zip archive", message: "No .conf tunnel files were found inside the zip archive.")
return
}
guard let tunnelsManager = tunnelsManager else { return }
unarchivedFiles.sort { $0.fileName < $1.fileName }
var lastFileName: String?
var configs: [TunnelConfiguration] = []
for file in unarchivedFiles {
if file.fileName == lastFileName {
continue
}
lastFileName = file.fileName
guard let fileContents = String(data: file.contents, encoding: .utf8) else {
continue
}
guard let tunnelConfig = try? WgQuickConfigFileParser.parse(fileContents, name: file.fileName) else {
continue
}
configs.append(tunnelConfig)
}
tunnelsManager.addMultiple(tunnelConfigurations: configs) { [weak self] (numberSuccessful) in
if numberSuccessful == unarchivedFiles.count {
tunnelsManager.addMultiple(tunnelConfigurations: configs.compactMap { $0 }) { [weak self] (numberSuccessful) in
if numberSuccessful == configs.count {
return
}
self?.showErrorAlert(title: "Created \(numberSuccessful) tunnels",
message: "Created \(numberSuccessful) of \(unarchivedFiles.count) tunnels from zip archive")
message: "Created \(numberSuccessful) of \(configs.count) tunnels from zip archive")
}
} else /* if (url.pathExtension == "conf") -- we assume everything else is a conf */ {
let fileBaseName = url.deletingPathExtension().lastPathComponent.trimmingCharacters(in: .whitespacesAndNewlines)
if let fileContents = try? String(contentsOf: url),
let tunnelConfiguration = try? WgQuickConfigFileParser.parse(fileContents, name: fileBaseName) {
tunnelsManager?.add(tunnelConfiguration: tunnelConfiguration) { (_, error) in
tunnelsManager.add(tunnelConfiguration: tunnelConfiguration) { (_, error) in
if let error = error {
ErrorPresenter.showErrorAlert(error: error, from: self)
}

48
WireGuard/WireGuard/ZipArchive/ZipImporter.swift Normal file
View File

@ -0,0 +1,48 @@
// SPDX-License-Identifier: MIT
// Copyright © 2018 WireGuard LLC. All Rights Reserved.
import UIKit
enum ZipImporterError: Error {
case noTunnelsInZipArchive
}
class ZipImporter {
let url: URL
init(url: URL) {
self.url = url
}
func importConfigFiles() throws -> [TunnelConfiguration?] {
var unarchivedFiles: [(fileName: String, contents: Data)] = try ZipArchive.unarchive(url: url, requiredFileExtensions: ["conf"])
for (i, unarchivedFile) in unarchivedFiles.enumerated().reversed() {
let fileBaseName = URL(string: unarchivedFile.fileName)?.deletingPathExtension().lastPathComponent
if let trimmedName = fileBaseName?.trimmingCharacters(in: .whitespacesAndNewlines), !trimmedName.isEmpty {
unarchivedFiles[i].fileName = trimmedName
} else {
unarchivedFiles.remove(at: i)
}
}
if (unarchivedFiles.isEmpty) {
throw ZipImporterError.noTunnelsInZipArchive
}
unarchivedFiles.sort { $0.fileName < $1.fileName }
var configs = Array<TunnelConfiguration?>(repeating: nil, count: unarchivedFiles.count)
for (i, file) in unarchivedFiles.enumerated() {
if (i > 0 && file == unarchivedFiles[i - 1]) {
continue
}
guard let fileContents = String(data: file.contents, encoding: .utf8) else {
continue
}
guard let tunnelConfig = try? WgQuickConfigFileParser.parse(fileContents, name: file.fileName) else {
continue
}
configs[i] = tunnelConfig
}
return configs
}
}