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//
// NCShareExtension+Files.swift
// Share
//
// Created by Henrik Storch on 29.12.21.
// Copyright © 2021 Henrik Storch. All rights reserved.
//
// Author Henrik Storch <henrik.storch@nextcloud.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
import Foundation
extension NCShareExtension {
@objc func reloadDatasource(withLoadFolder: Bool) {
var groupByField = "name"
layoutForView = NCUtility.shared.getLayoutForView(key: keyLayout, serverUrl: serverUrl)
// set GroupField for Grid
if layoutForView?.layout == NCGlobal.shared.layoutGrid {
groupByField = "classFile"
}
let metadatas = NCManageDatabase.shared.getMetadatas(predicate: NSPredicate(format: "account == %@ AND serverUrl == %@ AND directory == true", activeAccount.account, serverUrl))
self.dataSource = NCDataSource(
metadatas: metadatas,
account: activeAccount.account,
sort: layoutForView?.sort,
ascending: layoutForView?.ascending,
directoryOnTop: layoutForView?.directoryOnTop,
favoriteOnTop: true,
filterLivePhoto: true,
groupByField: groupByField)
if withLoadFolder {
loadFolder()
} else {
self.refreshControl.endRefreshing()
}
collectionView.reloadData()
}
@objc func didCreateFolder(_ notification: NSNotification) {
guard let userInfo = notification.userInfo as NSDictionary?,
let ocId = userInfo["ocId"] as? String,
let metadata = NCManageDatabase.shared.getMetadataFromOcId(ocId)
else { return }
self.serverUrl += "/" + metadata.fileName
self.reloadDatasource(withLoadFolder: true)
self.setNavigationBar(navigationTitle: metadata.fileName)
}
func loadFolder() {
networkInProgress = true
collectionView.reloadData()
NCNetworking.shared.readFolder(serverUrl: serverUrl, account: activeAccount.account) { _, metadataFolder, _, _, _, _, errorCode, errorDescription in
DispatchQueue.main.async {
if errorCode != 0 {
self.showAlert(description: errorDescription)
}
self.networkInProgress = false
self.metadataFolder = metadataFolder
self.reloadDatasource(withLoadFolder: false)
}
}
}
}
class NCFilesExtensionHandler {
var itemsProvider: [NSItemProvider] = []
lazy var filesName: [String] = []
let dateFormatter: DateFormatter = {
let formatter = DateFormatter()
formatter.dateFormat = "yyyy-MM-dd HH-mm-ss-"
return formatter
}()
@discardableResult
init(items: [NSExtensionItem], completion: @escaping ([String]) -> Void) {
CCUtility.emptyTemporaryDirectory()
var counter = 0
self.itemsProvider = items.compactMap({ $0.attachments }).flatMap { $0.filter({
$0.hasItemConformingToTypeIdentifier(kUTTypeItem as String) || $0.hasItemConformingToTypeIdentifier("public.url")
}) }
for (ix, provider) in itemsProvider.enumerated() {
provider.loadItem(forTypeIdentifier: provider.typeIdentifier) { [self] item, error in
defer {
counter += 1
if counter == itemsProvider.count { completion(self.filesName) }
}
guard error == nil else { return }
var originalName = (dateFormatter.string(from: Date())) + String(ix)
if let url = item as? URL, url.isFileURL, !url.lastPathComponent.isEmpty {
originalName = url.lastPathComponent
}
var fileName: String?
switch item {
case let image as UIImage:
fileName = getItem(image: image, fileName: originalName)
case let url as URL:
fileName = getItem(url: url, fileName: originalName)
case let data as Data:
fileName = getItem(data: data, fileName: originalName, provider: provider)
case let text as String:
fileName = getItem(string: text, fileName: originalName)
default: return
}
if let fileName = fileName, !filesName.contains(fileName) { filesName.append(fileName) }
}
}
}
// Image
func getItem(image: UIImage, fileName: String) -> String? {
var fileUrl = URL(fileURLWithPath: NSTemporaryDirectory() + fileName)
if fileUrl.pathExtension.isEmpty { fileUrl.appendPathExtension("png") }
guard let pngImageData = image.pngData(),
(try? pngImageData.write(to: fileUrl, options: [.atomic])) != nil
else { return nil }
return fileUrl.lastPathComponent
}
// URL
// Does not work for directories
func getItem(url: URL, fileName: String) -> String? {
var fileName = fileName
guard url.isFileURL else {
guard !filesName.contains(url.lastPathComponent) else { return nil }
if !url.deletingPathExtension().lastPathComponent.isEmpty { fileName = url.deletingPathExtension().lastPathComponent }
fileName += "." + (url.pathExtension.isEmpty ? "html" : url.pathExtension)
let filenamePath = NSTemporaryDirectory() + fileName
do {
let downloadedContent = try Data(contentsOf: url)
guard !FileManager.default.fileExists(atPath: filenamePath) else { return nil }
try downloadedContent.write(to: URL(fileURLWithPath: filenamePath))
} catch { print(error); return nil }
return fileName
}
let filenamePath = NSTemporaryDirectory() + fileName
try? FileManager.default.removeItem(atPath: filenamePath)
do {
try FileManager.default.copyItem(atPath: url.path, toPath: filenamePath)
let attr = try FileManager.default.attributesOfItem(atPath: filenamePath)
guard !attr.isEmpty else { return nil }
return fileName
} catch { return nil }
}
// Data
func getItem(data: Data, fileName: String, provider: NSItemProvider) -> String? {
guard !data.isEmpty else { return nil }
var fileName = fileName
if let url = URL(string: fileName), !url.pathExtension.isEmpty {
fileName = url.lastPathComponent
} else if let name = provider.suggestedName {
fileName = name
} else if let ext = provider.registeredTypeIdentifiers.last?.split(separator: ".").last {
fileName += "." + ext
} // else: no file information, use default name without ext
// when sharing images in safari only data is retuned.
// also, when sharing option "Automatic" is slected extension will return both raw data and a url, which will be downloaded, causing the image to appear twice with different names
if let image = UIImage(data: data) {
return getItem(image: image, fileName: fileName)
}
let filenamePath = NSTemporaryDirectory() + fileName
FileManager.default.createFile(atPath: filenamePath, contents: data, attributes: nil)
return fileName
}
// String
func getItem(string: String, fileName: String) -> String? {
guard !string.isEmpty else { return nil }
let filenamePath = NSTemporaryDirectory() + fileName + ".txt"
FileManager.default.createFile(atPath: filenamePath, contents: string.data(using: String.Encoding.utf8), attributes: nil)
return fileName
}
}
extension NSItemProvider {
var typeIdentifier: String {
if hasItemConformingToTypeIdentifier("public.url") { return "public.url" } else
if hasItemConformingToTypeIdentifier(kUTTypeItem as String) { return kUTTypeItem as String } else { return "" }
}
}
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