Add support for reading file metadata from local files

[RustoMCSpit]

When adding files, allow users to select a local file first. Read the local file metadata and populate form fields where possible:

• File type - infer from the file extension
• File systems - look for system name in the filename
• File contains - if client can read zip files somehow?
• File url - Use filename
• File size - Use file size
• File sha256 - Calculate checksum

Potentially allow for multiple local files to be selected in one go.

[kmturley]

Thanks for reporting, need to add support for this. It doesn't need server-side code to function

[RustoMCSpit]

It doesn't need server-side but there could be dozens of plugins in a project, all at different versions, some of which aren't on the registry.

[RustoMCSpit]

Is there any way we can let users use https://github.com/DropSnorz/OwlPlug/wiki/Projects-and-DAW-Support clientside?

[kmturley]

It is possible to have a <input type="file"> to select a local file. Instead of uploading the file, we can use the FileReader API to read the contents are parse contents. It may be a little slow in the browser, but could try. This approach could be used to read file metadata too such as file size and checksum. Good idea!

[RustoMCSpit]

YES!!!! WOOOOHOHOHHOH