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refactors iOS theme downloads

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This commit is contained in:
Stuart Breckenridge
2021-09-20 09:36:09 +08:00
parent 105a78bc0f
commit afd952fbc2
4 changed files with 85 additions and 41 deletions
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104
iOS/SceneDelegate.swift
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@@ -11,7 +11,7 @@ import UserNotifications
import Account
import Zip
class SceneDelegate: UIResponder, UIWindowSceneDelegate, URLSessionDownloadDelegate {
class SceneDelegate: UIResponder, UIWindowSceneDelegate {
var window: UIWindow?
var coordinator = SceneCoordinator()
@@ -179,9 +179,29 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate, URLSessionDownloadDeleg
if let providedThemeURL = queryItems.first(where: { $0.name == "url" })?.value {
if let themeURL = URL(string: providedThemeURL) {
let request = URLRequest(url: themeURL)
let session = URLSession(configuration: .default, delegate: self, delegateQueue: nil)
let downloadTask = session.downloadTask(with: request)
downloadTask.resume()
DispatchQueue.main.async {
NotificationCenter.default.post(name: .didBeginDownloadingTheme, object: nil)
}
let task = URLSession.shared.downloadTask(with: request) { [weak self] location, response, error in
guard let self = self, let location = location else { return }
self.createDownloadDirectoryIfRequired()
do {
let movedFileLocation = try self.moveTheme(from: location)
let unzippedFileLocation = try self.unzipFile(at: movedFileLocation)
let renamedFileLocation = try self.renameFileToThemeName(at: unzippedFileLocation)
DispatchQueue.main.async {
NotificationCenter.default.post(name: .didEndDownloadingTheme, object: nil)
self.coordinator.importTheme(filename: renamedFileLocation.path)
}
} catch {
DispatchQueue.main.async {
NotificationCenter.default.post(name: .didEndDownloadingThemeWithError, object: nil, userInfo: ["error" : error])
self.showAlert(error)
}
}
}
task.resume()
} else {
print("No theme URL")
return
@@ -193,45 +213,49 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate, URLSessionDownloadDeleg
}
}
// MARK: - URLSessionDownloadDelegate
func urlSession(_ session: URLSession, downloadTask: URLSessionDownloadTask, didFinishDownloadingTo location: URL) {
var downloadDirectory = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first!
// MARK: - Theme Downloader
private func createDownloadDirectoryIfRequired() {
let downloadDirectory = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first!
try? FileManager.default.createDirectory(at: downloadDirectory, withIntermediateDirectories: true, attributes: nil)
let tmpFileName = UUID().uuidString + ".zip"
downloadDirectory.appendPathComponent("\(tmpFileName)")
do {
try FileManager.default.moveItem(at: location, to: downloadDirectory)
var unzippedDir = downloadDirectory
unzippedDir = unzippedDir.deletingLastPathComponent()
unzippedDir.appendPathComponent("newtheme.nnwtheme")
try Zip.unzipFile(downloadDirectory, destination: unzippedDir, overwrite: true, password: nil, progress: nil, fileOutputHandler: nil)
try FileManager.default.removeItem(at: downloadDirectory)
let decoder = PropertyListDecoder()
let plistURL = URL(fileURLWithPath: unzippedDir.appendingPathComponent("Info.plist").path)
let data = try Data(contentsOf: plistURL)
let plist = try decoder.decode(ArticleThemePlist.self, from: data)
// rename
var renamedUnzippedDir = unzippedDir.deletingLastPathComponent()
renamedUnzippedDir.appendPathComponent(plist.name + ".nnwtheme")
if FileManager.default.fileExists(atPath: renamedUnzippedDir.path) {
try FileManager.default.removeItem(at: renamedUnzippedDir)
}
try FileManager.default.moveItem(at: unzippedDir, to: renamedUnzippedDir)
DispatchQueue.main.async {
self.coordinator.importTheme(filename: renamedUnzippedDir.path)
}
} catch {
print(error)
}
}
private func moveTheme(from location: URL) throws -> URL {
var downloadDirectory = FileManager.default.urls(for: .downloadsDirectory, in: .userDomainMask).first!
let tmpFileName = UUID().uuidString + ".zip"
downloadDirectory.appendPathComponent("\(tmpFileName)")
try FileManager.default.moveItem(at: location, to: downloadDirectory)
return downloadDirectory
}
private func unzipFile(at location: URL) throws -> URL {
var unzippedDir = location.deletingLastPathComponent()
unzippedDir.appendPathComponent("newtheme.nnwtheme")
try Zip.unzipFile(location, destination: unzippedDir, overwrite: true, password: nil, progress: nil, fileOutputHandler: nil)
try FileManager.default.removeItem(at: location)
return unzippedDir
}
private func renameFileToThemeName(at location: URL) throws -> URL {
let decoder = PropertyListDecoder()
let plistURL = URL(fileURLWithPath: location.appendingPathComponent("Info.plist").path)
let data = try Data(contentsOf: plistURL)
let plist = try decoder.decode(ArticleThemePlist.self, from: data)
var renamedUnzippedDir = location.deletingLastPathComponent()
renamedUnzippedDir.appendPathComponent(plist.name + ".nnwtheme")
if FileManager.default.fileExists(atPath: renamedUnzippedDir.path) {
try FileManager.default.removeItem(at: renamedUnzippedDir)
}
try FileManager.default.moveItem(at: location, to: renamedUnzippedDir)
return renamedUnzippedDir
}
private func showAlert(_ error: Error) {
let alert = UIAlertController(title: NSLocalizedString("Error", comment: "Error"),
message: error.localizedDescription,
preferredStyle: .alert)
alert.addAction(UIAlertAction(title: NSLocalizedString("Dismiss", comment: "Dismiss"), style: .cancel, handler: nil))
self.window?.rootViewController?.present(alert, animated: true, completion: nil)
}
}
private extension SceneDelegate {