Upload the file via providing url instead of sending file via form

[asiniy]

Hey!

I found there is no this ability here, and we have to implement it in the future. What do you think?

[keichan34]

Sounds good! My only concern is that it could be used to DoS a site by sending a URL with a massive file, but so we'd probably need to make a "maximum URL download size" option for Exfile

[asiniy]

I thought about implementing validate_size() validator, like validate_content_type, which I'm implementing right now

[asiniy]

It's easier to specify file size for each model instead of creating one global value

[keichan34]

A validate_size validator would have to run after the file is downloaded from the URL -- my particular concern is that an end user could enter a URL (either maliciously or by accident) to a file that is larger than the available space on the server, for example. The reason there isn't a limit right now is because Plug has its own limit for POST bodies and most reverse proxies do as well.

[asiniy]

@keichan34 hm, you're right here. We already have file limit, isn't it?

[keichan34]

I'm not sure I understand. Which file limit?

[keichan34]

Oh, I see, yeah. I think we can use that instead of making a new global configuration variable.

[asiniy]

@keichan34 yes, but I still want to implement this feature.

[keichan34]

Got it. Thanks! :)

[asiniy]

Mark this issue as milestone?