[Web service] temporary file storage

Introduction

Hosted by laitos web server, the service enables users to upload files (up to 64MB each) for unlimited retrieval within 24 hours.

Uploaded files are temporary in nature, they are automatically deleted after 24 hours.

Configuration

Under JSON key HTTPHandlers, write a string property called FileUploadEndpoint, value being the URL location of the service. The location should be kept a secret for intended users only - make it difficult to guess.

Here is an example setup:

{
    ...

    "HTTPHandlers": {
        ...

        "FileUploadEndpoint": "/very-secret-file-upload-place",

        ...
    },

    ...
}

Run

The form is hosted by web server, therefore remember to run web server.

Usage

1. In a web browser, navigate to FileUploadEndpoint of laitos web server.
2. Click "Choose file", after selecting a file click "Upload".
3. Observe successful message: "Uploaded successfully. Your file is available for 24 hours under name: abcdefghij.ext". Write down the file name on a piece of paper.
4. Visit FileUploadEndpoint within 24 hours, enter the file name into the text field and click "Download".

Tips

• Make the endpoint difficult to guess, this helps to prevent misuse of the service.
• The download button asks browser to use its default action on the downloaded file - if the file is a photo, then browsers will often display the photo rather than displaying a download dialogue. You can save the photo by right-clicking the photo on a desktop computer, or long-press the photo on a tablet computer.
• The temporary storage place is located underneath directory laitos-HandleFileUpload in operationg system's temporary file directory. On many Linux systems, each system service gets their own private temporary files directory underneath /tmp/.