I am trying to build an app where I am able to access(read/write) windows/mac shared folders in my local network with swift.
Is there any possible way to do that with swift?
There is an App in the App Store called "FileExplorer" https://apps.apple.com/de/app/fe-file-explorer-file-manager/id510282524 where you can access these shared folders, but I do not know how they programmed this and with which language.
I also tried to access my shared folders via this App and yes it worked I can see my shared folders on my Phone.
But there needs to be a way to do it with swift...
I already tried different things(code bellow).
In the code bellow I tried to access the shared folder of my second mac and write the Text "Write this text to the fileURL as text in iOS using Swift" into the file named "Test.txt" and after that I want to read the same file again.
#IBAction func Button(_ sender: UIButton)
{
var uc = URLComponents()
uc.scheme = "smb"
uc.user = "user"
uc.password = "password"
uc.host = "ip-adress"
uc.path = "document-directory"
// Save data to file
let fileName = "Test"
let url = uc.url
//let DocumentDirURL = URL(fileURLWithPath: "/Users/f/d/t/App/Assets/Apps/TestApp")
let DocumentDirURL = try! URL(resolvingAliasFileAt: url!)
let fileURL = DocumentDirURL.appendingPathComponent(fileName).appendingPathExtension("txt")
print("FilePath: \(fileURL.path)")
let writeString = "Write this text to the fileURL as text in iOS using Swift"
do {
// Write to the file
try writeString.write(to: fileURL, atomically: true, encoding: String.Encoding.utf8)
} catch let error as NSError {
print("Failed writing to URL: \(fileURL), Error: " + error.localizedDescription)
}
var fullString: String = "" // Used to store the file contents
do {
// Read the file contents
fullString = try String(contentsOf: fileURL, encoding: .utf8)
} catch let error as NSError {
print("Failed reading from URL: \(fileURL), Error: " + error.localizedDescription)
}
print("File Text: \(readString)")
}
If I run the code as shown, he always gives me the error
"smb scheme is not supported" and then some additional errors that he can not write/read the file because he can not access it.
When I change the code and only search on the device I am programming on and run the simulator to search for this file everything works fine. So I have problems with "smb".
Thank you for every helpful answer.
you can use amsmb2 library to do this
you can extend the template class provided to connect to download files, write files, list directories -> on an smb share
everything is asynchronous from memory, with the librarys calls including hooks for progress updates on the ui main thread etc
i believe the amsmb2 library function your after might be uploadItem
iOS 13 includes SMB (server message block protocol) support
https://9to5mac.com/2019/06/17/ios-13-beta-2-enables-smb-server-connectivity-in-the-files-app/
Related
I tried to create an event from details getting from api response but failed, I want the event created in swift to write in a .ics file and then export to files in my iPhone. I Created text file and added text in it successfully but failed to get added text to .ics file(Code is added)
So my question is how to create an editable .ics file, then how to create an iCal event, and then how to write that event details in .ics file, Then how to export this file in Files in iPhone
Please ignore if some thing crate confusion, My code is here!
if let fileURL = dir?.appendingPathComponent("my_iCsFile").appendingPathExtension("ics") {
let dtstart = "This is strt date"
let dtend = "this is end date"
let location = "This is location"
let summary = "This is summery"
let outString: String = "dtstart:\(dtstart)\ndtend:\(dtend)\nlocation:\(location)\nsummery:\(summary)"
do {
try
outString.write(to: fileURL, atomically: true, encoding: .utf8)
} catch {
print("Failed writing to URL: \(fileURL), Error: " + error.localizedDescription)
}
}
Any sample of cede, help, link or tutorial will be appreciated. Thanks
I waited here, and searched a lot for some solution, iFound the following, I just passed some values like starting/ ending date, name/title and summery and this returnees me the correct formate of text that should be written in .ics file. file saving process is same as mentioned in my Question.
this is the link to solution :
https://github.com/kiliankoe/iCalKit
in question dir is used. dir is actually global var to root directory
let dir = try? FileManager.default.url(for: .documentDirectory,
in: .userDomainMask, appropriateFor: nil, create: true)
and in file export function just pass the event detail (don't forget to add iCalKit library in the project, writing and exporting code is here
if let fileURL = dir?.appendingPathComponent("my_iCsFile").appendingPathExtension("ics") {
let outString: String = String here that generated by iCal event (iCalKit will make sure for us that the string is in iCalEvent format to write in .ics file)
do {
try
outString.write(to: fileURL, atomically: true, encoding: .utf8)
} catch {
print("Failed writing to URL: \(fileURL), Error: " + error.localizedDescription)
}
}
I have a iOS/CatalystMacOS-app that can create, save, open custom text-files (with my own file extension). This works fine. However, now I need more than text. I want to save optional files in this file as well. Apparently macOS (and iOS?) can treat folders as files. But I cannot get it to work as wanted. The folder is still treated as a folder, even if it has a file extension.
This is the code I use to create the folder:
func showNewFilePathDialog(from viewController: UIViewController, saveCompleted: URLCallback?) {
guard !isPresenting else {
return
}
let objectToSave = ...
// Find an available filename
var number = 0
var exportURL: URL!
var data: Data!
var fullFileName = ""
while true {
let numberText = number == 0 ? "" : number.asString()
fullFileName = "baseFileName" + "\(numberText).myFileExtension"
exportURL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first!.appendingPathComponent(fullFileName)
let dict = objectToSave.toDict()
let json = dict.json!
data = json.data(using: .utf8)!
if FileManager.default.fileExists(atPath: exportURL.path) {
number += 1
continue
} else {
break
}
}
do {
try FileManager.default.createDirectory(atPath: exportURL.path, withIntermediateDirectories: true, attributes: nil)
} catch {
NSLog("Couldn't create document directory")
viewController.presentErrorDialog(from: error)
return
}
// 2. Create containing json file
do {
try data.write(to: exportURL.appendingPathComponent("content.json"))
} catch {
viewController.presentErrorDialog(from: error)
return
}
isPresenting = true
self.onSaveDialogComplete = saveCompleted
let pickerViewController = UIDocumentPickerViewController(url: exportURL, in: .exportToService)
pickerViewController.delegate = self
viewController.present(pickerViewController, animated: true)
}
And then it appears like this in macOS finder:
It will show up similar in iOS, not allowing me to open the folder as a single file either.
Edit: Using UIDocument/public.composite-content/FileWrapper seems to work as well, but the problem still consists: When viewed in macOS finder it is still treated as a folder. Also when trying to open the app from the open-dialog via UIDocumentPickerViewController trying to open the file-bundle only opens the folder and wont let me open it into the app :(
This is my info.list Export Type UTIs:
Edit2: Also tried with removing all but com.apple.package but does not work either. Still cannot open my custom type as it behaves like a folder.
Got it working. Seemed as old builds of my app was interfering with the system file types. So I searched for my app name and removed old builds from my computer. Then the system recognized my file suffix and opened it right away!
But I lost the icon this time, but that's another issue :)
So the app I'm making creates a file called "logfile" and I'm trying to send that file via Alamofire upload to a server. The file path printed in the console log is
/var/mobile/Containers/Data/Application/3BE13D78-3BF0-4880-A79A-27B488ED9EFE/Documents/logfile.txt
and the file path I can use to manually access the log created in the .xcappdata is
/AppData/Documents/logfile.txt
To access it, I'm using
let fileURL = Bundle.main.url(forResource: "", withExtension: "txt")
where inbetween the double quotes for "forResource", I've tried both file paths I listed in the previous paragraph as well as just the file name but I'm getting a nil value for file found for either. The file isn't recognized to be there, presumably because the file path I'm using is wrong as Alamofire is returning nil when trying to locate send the file. Anyone know the direct file path I'm supposed to use to be able to grab my file since the other two don't supposedly work? Thank you!
Use below code to get string data from text file to upload to server:
let fileName = "logfile"
let documentDirURL = try? FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: true)
let fileURL = documentDirURL.appendingPathComponent(fileName).appendingPathExtension("txt")
print("FilePath: \(fileURL.path)")
var readString = "" // Used to store the file contents
do {
// Read the file contents
readString = try String(contentsOf: fileURL)
} catch let error as NSError {
print("Failed reading from URL: \(fileURL), Error: " + error.localizedDescription)
}
print("File Text: \(readString)") // Send 'readString' to server
If you're dynamically creating the file at runtime, it won't be in your app bundle so the Bundle class won't be able to find it. The directories you see are also dynamically-generated and not only platform-specific, but also device-specific, so you can't use the file paths directly. Instead, you'll have to ask for the proper directory at runtime from the FileManager class, like this:
guard let documents = FileManager.default.urls(for: .documentsDirectory, in: .userDomainMask).first else{
// This case will likely never happen, but forcing anything in Swift is bad
return
}
let logURL = URL(string: "logfile.txt", relativeTo: documents)
do{
let fileContents = String(contentsOf: logURL)
// Send your file to your sever here
catch{
// Handle any errors you might've encountered
}
Note that I'm guessing based on the paths you pasted in your answer you put it in your application's documents directory. That's a perfectly fine place to put this type of thing, but if I'm wrong and you put it in a different place, you'll have to modify this code to point to the right place
I am trying to download a plist file from a remote location and use it in the iOS app I am creating. The file is going to be used for calendar details within the app's calendar. The goal is obviously that I can update the remote file instead of having to push updates to the app itself every time we need to make changes to calendar details.
I started with the code used in this example: Download File From A Remote URL
Here is my modified version:
// Create destination URL
let documentsUrl:URL = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask).first as URL!
let destinationFileUrl = documentsUrl.appendingPathComponent("2017.plist")
//let destinationFileUrl = URL(string: Bundle.main.path(forResource: String(currentYear), ofType: "plist")!)
//Create URL to the source file you want to download
let fileURL = URL(string: "https://drive.google.com/open?id=0BwHDQFwaL9DuLThNYWwtQ1VXblk")
let sessionConfig = URLSessionConfiguration.default
let session = URLSession(configuration: sessionConfig)
let request = URLRequest(url:fileURL!)
let task = session.downloadTask(with: request) { (tempLocalUrl, response, error) in
if let tempLocalUrl = tempLocalUrl, error == nil {
// Success
if let statusCode = (response as? HTTPURLResponse)?.statusCode {
print("Successfully downloaded. Status code: \(statusCode)")
}
do {
try FileManager.default.removeItem(at: destinationFileUrl)
try FileManager.default.moveItem(at: tempLocalUrl, to: destinationFileUrl)
print("File was replaced")
print(NSArray(contentsOf: tempLocalUrl))
//print(tempLocalUrl)
} catch (let writeError) {
print("Error creating a file \(String(describing: destinationFileUrl)) : \(writeError)")
}
} else {
print("Error took place while downloading a file. Error description: %#", error?.localizedDescription as Any);
}
}
task.resume()
I originally tried to overwrite the file that is bundled with the app to being with, that resulted in errors. So I instead tried to just save it in the app's documents folder and that removed that error. I had to make sure and remove any previous version of the file because it was giving me a file already exists error after the first run.
While it says everything is working (The outputs for both successful download and replaced file happen) when I print the contents of the array from the downloaded URL it just gives me nil.
This is my first attempt to use any kind of external resources in an app. Before I have always kept everything internal, so I am sure there is something glaringly obvious I am missing.
Update 1:
I realized I didn't have the correct URL to use to download a file from a Google drive. That line of code has been changed to:
let fileURL = URL(string: "https://drive.google.com/uc?export=download&id=0BwHDQFwaL9DuLThNYWwtQ1VXblk")
So now I actually am downloading the plist like I originally thought I was. Even removing the deletion issue mentioned in the first comment, I still can't get the downloaded file to actually replace the existing one.
Update 2:
I have reduced the actual file manipulation down to the following:
do {
try FileManager.default.replaceItemAt(destinationFileUrl, withItemAt: tempLocalUrl)
print("File was replaced")
print(NSArray(contentsOf: destinationFileUrl))
} catch (let writeError) {
print("Error creating a file \(String(describing: destinationFileUrl)) : \(writeError)")
}
} else {
print("Error took place while downloading a file. Error description: %#", error?.localizedDescription as Any);
}
After the replacement is performed the output of the file shows the correct new contents that were downloaded from the internet.
Later in the code when I try and access the file it seems to be nil in content again.
Look at your download completion code. You:
Delete the file at the destination URL (in case there was one
leftover)
MOVE the temp file to the destination URL (removing it from the temp
URL)
Try to load the file from the temp URL.
What's wrong with this picture?
You are trying to get the contents of the moved file. You already moved the file to destination url and then you are trying to get the contents of the file from temporary location.
For getting file data, Please try the following :
let fileData = try! String(contentsOf: destinationFileUrl, encoding: String.Encoding.utf8)
print(fileData)
I would like to backup a realm database file to an iCloud drive, like WhatsApp, I have some questions:
What is the best practice to do this?
I have a database located in a shared group folder to access it from extensions, how can I back it up? How can I show the progress bar of upload? Like WhatsApp for example?
If I put a realm file in a document folder it will be synced for each modify.
Are there some samples code that we can see?
Thanks for the help, have any ideas? links?
Just to clarify, this is a question about backing up a discrete Realm file itself to iCloud Drive, so that it would be visible in the iCloud Drive app. Not synchronizing the contents of the file to a CloudKit store.
If you leave the Realm file in the Documents directory, then if the user performs an iCloud or iTunes backup, the file will be backed up. All this means though is that if the user decides to upgrade to a new device and perform a restore using the old device's backup image, the Realm file will be restored then. If the user deletes the app from your old device before then, the iCloud backup will also be deleted.
If you want to export your Realm file so it can be permanently saved and accessed in iCloud Drive, you can export a copy of the Realm file to your app's iCloud ubiquity container. This is basically just another folder like the shared group's folder, but it's managed by iCloud. This folder sort of behaves like Dropbox in that anything you put in there is automatically synchronized.
The code would look something like this:
let containerURL = FileManager.default.url(forUbiquityContainerIdentifier: nil)
let realmArchiveURL = containerURL.appendPathComponent("MyArchivedRealm.realm")
let realm = try! Realm()
try! realm.writeCopy(toFile: realmArchiveURL)
This is a really basic example. The Apple documentation recommends you do this on a background thread since setting up the iCloud folder for the first time can create some time.
Updating this wouldn't happen automatically. You'll need to export a new copy of the Realm each time the user wants to perform a backup.
I have recently had the same requirements and I am able to achieve from below steps
Swift: 4+
Step:1
1.Setup Your cloudKit for your app with a Developer account
2. You can take reference: https://www.raywenderlich.com/1000-cloudkit-tutorial-getting-started
Step 2
- Add CloudKit Capabilities in your App
- Please check out the screenshot: https://prnt.sc/pdpda5
Step 3
- Check for cloud Enabled options for your iphone
// Return true if iCloud is enabled
func isCloudEnabled() -> Bool {
if DocumentsDirectory.iCloudDocumentsURL != nil { return true }
else { return false }
}
Step 4
- Setup the below variables for Local or iCloud Document directories
struct DocumentsDirectory {
static let localDocumentsURL = FileManager.default.urls(for: FileManager.SearchPathDirectory.documentDirectory, in: .userDomainMask).last!
static let iCloudDocumentsURL = FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents")
}
Step:5
Below function is used for copyRealmFileToIcloudContainer
func uploadDatabaseToCloudDrive()
{
if(isCloudEnabled() == false)
{
self.iCloudSetupNotAvailable()
return
}
let fileManager = FileManager.default
self.checkForExistingDir()
let iCloudDocumentsURL = FileManager.default.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents", isDirectory: true)
let iCloudDocumentToCheckURL = iCloudDocumentsURL?.appendingPathComponent("\(memberId)_default.realm", isDirectory: false)
let realmArchiveURL = iCloudDocumentToCheckURL//containerURL?.appendingPathComponent("MyArchivedRealm.realm")
if(fileManager.fileExists(atPath: realmArchiveURL?.path ?? ""))
{
do
{
try fileManager.removeItem(at: realmArchiveURL!)
print("REPLACE")
let realm = try! Realm()
try! realm.writeCopy(toFile: realmArchiveURL!)
}catch
{
print("ERR")
}
}
else
{
print("Need to store ")
let realm = try! Realm()
try! realm.writeCopy(toFile: realmArchiveURL!)
}
}
Step:6
- Once your realm file uploaded on the server , you can check this in your iPhone
- Steps
- 1.Go To Setting
- 2.Go To iCloud
- 3.Go To ManageStorage
- 4.You will see your application there
- 5.Tap on Application, you will able to see your realm file over there
Step:7
- Make Sure you have added the below lines in info.plist
<key>NSUbiquitousContainers</key>
<dict>
<key>iCloud.com.example.app</key>
<dict>
<key>NSUbiquitousContainerIsDocumentScopePublic</key>
<true/>
<key>NSUbiquitousContainerName</key>
<string>iCloudDemoApp</string>
<key>NSUbiquitousContainerSupportedFolderLevels</key>
<string>Any</string>
</dict>
</dict>
#yonlau as per your request sharing answer for backup realm file , This is tested once and the realm data only have when they backup on iCloud.
func DownloadDatabaseFromICloud()
{
let fileManager = FileManager.default
// Browse your icloud container to find the file you want
if let icloudFolderURL = DocumentsDirectory.iCloudDocumentsURL,
let urls = try? fileManager.contentsOfDirectory(at: icloudFolderURL, includingPropertiesForKeys: nil, options: []) {
// Here select the file url you are interested in (for the exemple we take the first)
if let myURL = urls.first {
// We have our url
var lastPathComponent = myURL.lastPathComponent
if lastPathComponent.contains(".icloud") {
// Delete the "." which is at the beginning of the file name
lastPathComponent.removeFirst()
let folderPath = myURL.deletingLastPathComponent().path
let downloadedFilePath = folderPath + "/" + lastPathComponent.replacingOccurrences(of: ".icloud", with: "")
var isDownloaded = false
while !isDownloaded {
if fileManager.fileExists(atPath: downloadedFilePath) {
isDownloaded = true
print("REALM FILE SUCCESSFULLY DOWNLOADED")
self.copyFileToLocal()
}
else
{
// This simple code launch the download
do {
try fileManager.startDownloadingUbiquitousItem(at: myURL )
} catch {
print("Unexpected error: \(error).")
}
}
}
// Do what you want with your downloaded file at path contains in variable "downloadedFilePath"
}
}
}
}
2.Copy realm file from iCloud to Document directory
func copyFileToLocal() {
if isCloudEnabled() {
deleteFilesInDirectory(url: DocumentsDirectory.localDocumentsURL)
let fileManager = FileManager.default
let enumerator = fileManager.enumerator(atPath: DocumentsDirectory.iCloudDocumentsURL!.path)
while let file = enumerator?.nextObject() as? String {
do {
try fileManager.copyItem(at: DocumentsDirectory.iCloudDocumentsURL!.appendingPathComponent(file), to: DocumentsDirectory.localDocumentsURL.appendingPathComponent(file))
print("Moved to local dir")
//HERE ACCESSING DATA AVAILABLE IN REALM GET FROM ICLOUD
let realm = RealmManager()
let array = realm.FetchObjects(type: Mood.self)
print(array?.count)
} catch let error as NSError {
print("Failed to move file to local dir : \(error)")
}
}
}
}
You could take a look at this Github project by mikemac8888.
Basically you make your model objects conform to RealmCloudObject:
class Note: Object, RealmCloudObject {
...
}
You have to implement a mapping function :
func toRecord() -> CKRecord {
...
record["text"] = self.text
record["dateModified"] = self.dateModified
}
... and the reverse function used to create Realm records out of CloudKit records:
public func changeLocalRecord(...) throws {
...
realm.create(objectClass as! Object.Type,
value: ["id": id,
"text": text,
"dateModified": NSDate(),
"ckSystemFields": recordToLocalData(record)],
update: true)
...
}
The full documentation could be read at the link I provided, obviously.