I write a code to check an update for my application which is working fine.
Now what i wants to do is, I have an URL of my update. I wants to save that file in my temp folder silently without user notification(means once user click on "Yes" button of an Update dialog) and then install that file in machine.
I tried a way using "Process.Start" but it opens IE in user's machine and then download the file which i don't want.
You need to programatically download the file.
Use WebRequest and WebResponse, open a stream and save it to a file.
WebRequest req = WebRequest.Create("YOUR URL");
WebResponse resp = req.GetResponse();
Stream s = resp.GetResponseStream();
// Now save this stream to a file
If you are using Java, you could use the apache commons httpclient library to download the file.
Related
How do I save a file generated by my application to the downloads folder when using the WinUI 3 SDK? I know I can use FilePicker to select a file to use in my application but I would like to essentially do the opposite and save a file from my application somewhere or just simply put it into downloads.
This is an example saving the StoreLogo.png file, which is in the Assets folder by default, to the Downloads folder.
using Windows.Storage;
...
// Get the StoreLogo.png file as a StorageFile.
Uri storeLogoUri = new($"ms-appx:///Assets/StoreLogo.png");
StorageFile storeLogoFile = await StorageFile.GetFileFromApplicationUriAsync(storeLogoUri);
// Get the Downloads folder as a StorageFolder.
string downloadsFolderPath = UserDataPaths.GetDefault().Downloads;
StorageFolder downloadsFolder = await StorageFolder.GetFolderFromPathAsync(downloadsFolderPath);
// Save (copy) the StoreLogo.png file.
await storeLogoFile.CopyAsync(downloadsFolder);
Please I am trying to download a File from an HTTPS website.
i have created an HTTP Manager to connect to the website with my password and Username.
Now what do i do next to be able to the file with a certain format and dump in a specific folder on my computer?
Here what you are looking for
http://www.sqlis.com/post/Downloading-a-file-over-HTTP-the-SSIS-way.aspx
How about something like:
Dim wc As WebClient = New WebClient()
wc.Credentials = New System.Net.NetworkCredential("user-id", "password", "domain")
wc.DownloadFile("https://www.portal.zzz.com/sites/Document area/fff.xlsx", "C:\fff.xlsx")
I am looking for a method to download automatically a file from a website.
Currently the process is really manual and heavy.
I go on a webpage, I enter my pass and login.
It opens a pop up, where I have to click a download button to save a .zip file.
Do you have any advice on how I could automate this task ?
I am on windows 7, and I can use mainly MS dos batch, or python. But I am open to other ideas.
You can use selenium web driver to automate the downloading. You can use below snippet for browser download preferences in java.
FirefoxProfile profile = new FirefoxProfile();
profile.setPreference("browser.download.folderList", 2);
profile.setPreference("browser.download.manager.showWhenStarting", false);
profile.setPreference("browser.download.dir", "C:\\downloads");
profile.setPreference("browser.helperApps.neverAsk.openFile","text/csv,application/x-msexcel,application/excel,application/x-excel,application/vnd.ms-excel,text/html,text/plain,application/msword,application/xml");
To handle the popup using this class when popup comes.
Robot robot = new Robot();
robot.keyPress(KeyEvent.VK_DOWN);
robot.keyRelease(KeyEvent.VK_DOWN);
robot.keyPress(KeyEvent.VK_ENTER);
robot.keyRelease(KeyEvent.VK_ENTER);
You'll want to take a look at requests (to fetch the html and the file), Beautifulsoup (to parse the html and find the links)
requests has built in auth: http://docs.python-requests.org/en/latest/
Beautifulsoup is quite easy to use: http://www.crummy.com/software/BeautifulSoup/bs4/doc/
Pseudocode: use request to download the sites html and auth. Go through the links by parsing. If a link meets the criteria -> save in a list, else continue. When all the links have been scrapped, go through them and download the file using requests (req = requests.get('url_to_file_here', auth={'username','password'}), if req.status_code in [200], file = req.text
If you can post the link of the site you want to download from, maybe we can do more.
I am trying to read a text file, which is shipped as an asset in a Metro app. I am receiving an access denied error, if specifying the file path as "ms-appx:///Assets/file.txt". Clearly I need to set some capability to access installation location folder. I tried enabling all capabilities in manifest designer, but still the same error. Please suggest.
Try this:
StorageFile file = await StorageFile.GetFileFromApplicationUriAsync(
new Uri("ms-appx:///Assets/file.txt"));
Stream stream = await file.OpenStreamForReadAsync();
StreamReader sr = new StreamReader(stream);
Is that exactly the reference you are using? Try
ms-appx:///Assets/file.txt
Is it possible to upload image or file to SkyDrive fom Metro Style App?
I have already found how to browse the file from SkyDrive. But I haven't found regarding uploading file to SkyDrive. If you reply me, it will be very thankful..
I don't think the file picker method works unless the user has the desktop app installed.
You should use a Sharing contract. If you add a data file (Storage Item) to share, then SkyDrive will be listed as a share target and the user gets a UI where they can choose where in their SkyDrive they want to save. This is how I implemented it in my app.
For more info...
http://msdn.microsoft.com/en-us/library/windows/apps/hh771179.aspx
You can use FileSavePicker to save files. This will of course give the user a chance to select where he wants to save to local documents folder or sky drive. The user is in control.
FileSavePicker savePicker = new FileSavePicker();
savePicker.SuggestedStartLocation = PickerLocationId.DocumentsLibrary;
savePicker.DefaultFileExtension = ".YourExtension";
savePicker.SuggestedFileName = "SampleFileName";
savePicker.FileTypeChoices[".YourExtension"] = new List<string>() { ".YourExtension"};
StorageFile file = await savePicker.PickSaveFileAsync();
if (file != null)
{
await FileIO.WriteTextAsync(file, "A bunch of text to save to the file");
}
Please note that in the sample code I am creating the content of the file in code. If you want the user to select an existing file from the computer then you will have to first use FileOpenPicker, get the file and then use FileSavePicker to save the contents of the selected file to the SkyDrive
Assuming that you are using XAML/JavaScript, the suggested solution is to use FilePicker.
The following link may help you.
http://msdn.microsoft.com/en-us/library/windows/apps/jj150595.aspx
Thanks Mamta Dalal and Dangling Neuron, but there is problem. But it looks like I can't use FileSavePicker. I have to upload file(documnet, photo) not only text file. I have to copy from one path to another. If I use FileSavePicker, I have to write every file content (text, png, pdf, etc) and can't copy. Currently I am using FolderPicker. But unfortunately, FolderPicker doesn't support SkyDrive.My Code is As follow:
>FolderPicker saveFolder = new FolderPicker();
>saveFolder.ViewMode = PickerViewMode.Thumbnail;
>saveFolder.SuggestedStartLocation = PickerLocationId.Desktop;
>saveFolder.FileTypeFilter.Add("*");
>StorageFolder storagefolderSave = await saveFolder.PickSingleFolderAsync();
>StorageFile storagefileSave = [Selected storagefile with file picker];
>await storagefileSave.CopyAsync(storagefolderSave,storagefileSave.Name,NameCollisionOption.ReplaceExisting);
It will be greate that if FolderPicker supports SkyDrive or can copy file using FileSavePicker.