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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| // | ||
| // This source file is part of the Stanford OwnYourData Application project | ||
| // | ||
| // SPDX-FileCopyrightText: 2023 Stanford University | ||
| // | ||
| // SPDX-License-Identifier: MIT | ||
| // | ||
|
|
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| import CoreTransferable | ||
| import OSLog | ||
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|
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| struct ExportPackage: Transferable { | ||
| static var transferRepresentation: some TransferRepresentation { | ||
| FileRepresentation( | ||
| exportedContentType: .zip, | ||
| exporting: { document in | ||
| try await SentTransferredFile(document.zipRepresentation) | ||
| } | ||
| ) | ||
| } | ||
|
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| let resources: [FHIRResource] | ||
|
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| private var directory: URL { | ||
| FileManager.default.temporaryDirectory.appendingPathComponent( | ||
| "edu.stanford.ownyourdate.export", | ||
| isDirectory: true | ||
| ) | ||
| } | ||
|
|
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| var zipRepresentation: URL { | ||
| get async throws { | ||
| if directory.exists { | ||
| try FileManager.default.removeItem(at: directory) | ||
| } | ||
| try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true, attributes: nil) | ||
|
|
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| for resource in resources { | ||
| guard let id = resource.id else { | ||
| os_log("Can not export resource named \(resource.displayName)") | ||
| continue | ||
| } | ||
|
|
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| let resourceJSONData = Data(resource.jsonDescription.utf8) | ||
| try resourceJSONData.write(to: directory.appending(path: "\(id).json")) | ||
| } | ||
|
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| let zipURL = try directory.zip() | ||
| try FileManager.default.removeItem(at: directory) | ||
|
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| return zipURL | ||
| } | ||
| } | ||
|
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|
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| func deleteZipRepresentation() throws { | ||
| try FileManager.default.removeItem(at: directory.appendingPathExtension(".zip")) | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,108 @@ | ||
| // | ||
| // This source file is part of the Stanford OwnYourData Application project | ||
| // | ||
| // SPDX-FileCopyrightText: 2023 Stanford University | ||
| // | ||
| // SPDX-License-Identifier: MIT | ||
| // | ||
|
|
||
| import Foundation | ||
| import OSLog | ||
|
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||
|
|
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| extension URL { | ||
| var isDirectory: Bool { | ||
| (try? resourceValues(forKeys: [.isDirectoryKey]))?.isDirectory == true | ||
| } | ||
|
|
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| var exists: Bool { | ||
| FileManager.default.fileExists(atPath: path) | ||
| } | ||
|
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| func zip(to zipURL: URL? = nil) throws -> URL { | ||
| let logger = Logger(subsystem: "edu.stanford.spezi.zipcomponent", category: "ZipComponent") | ||
|
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| let zipURL = zipURL ?? self.appendingPathExtension("zip") | ||
|
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| let directory: URL | ||
| let temporaryDirectory: Bool | ||
| if isFileURL, exists, isDirectory { | ||
| directory = self | ||
| temporaryDirectory = false | ||
| } else { | ||
| // Crete a temporary folder | ||
| directory = FileManager.default.temporaryDirectory.appendingPathComponent( | ||
| "edu.stanford.spezi.zipcomponent/\(UUID().uuidString)", | ||
| isDirectory: true | ||
| ) | ||
| try FileManager.default.createDirectory(at: directory, withIntermediateDirectories: true, attributes: nil) | ||
| temporaryDirectory = true | ||
|
|
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| // Copy the file to the new folder | ||
| let filePath = directory.appendingPathComponent(lastPathComponent) | ||
| try FileManager.default.copyItem(at: self, to: filePath) | ||
| } | ||
|
|
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| // Clean up the folder at the end of the function independent of the outcome | ||
| defer { | ||
| if temporaryDirectory { | ||
| do { | ||
| try FileManager.default.removeItem(at: directory) | ||
| } catch { | ||
| logger.error("Could not remove temporary directory at \(directory)") | ||
| } | ||
| } | ||
| } | ||
|
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| var zipError, copyError: NSError? | ||
|
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| NSFileCoordinator().coordinate( | ||
| readingItemAt: directory, | ||
| options: .forUploading, | ||
| error: &zipError | ||
| ) { zippedURL in | ||
| do { | ||
| if zipURL.exists { | ||
| try FileManager.default.removeItem(at: zipURL) | ||
| } | ||
| try FileManager.default.copyItem(at: zippedURL, to: zipURL) | ||
| } catch { | ||
| logger.debug("Copying the ziped file from \(zippedURL) to \(zipURL) failed.") | ||
| copyError = error as NSError | ||
| } | ||
| } | ||
|
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| if let copyError { | ||
| throw copyError | ||
| } | ||
| if let zipError { | ||
| logger.debug("Could not zip the directory at \(directory): \(zipError)") | ||
| throw zipError | ||
| } | ||
|
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| return zipURL | ||
| } | ||
| } | ||
|
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| extension Data { | ||
| var zip: Data { | ||
| get throws { | ||
| let temporaryDirectory = FileManager.default.temporaryDirectory.appendingPathComponent( | ||
| "edu.stanford.spezi.zipcomponent/\(UUID().uuidString)", | ||
| isDirectory: true | ||
| ) | ||
|
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| try self.write(to: temporaryDirectory, options: .atomic) | ||
| let zipURL = try temporaryDirectory.zip() | ||
|
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| let zippedData = try Data(contentsOf: zipURL) | ||
|
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| try? FileManager.default.removeItem(at: temporaryDirectory) | ||
| try? FileManager.default.removeItem(at: zipURL) | ||
|
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| return zippedData | ||
| } | ||
| } | ||
| } | ||