Auto update module stopped working

[Rodrigo Zogaib]

Auto Update Module

https://github.com/CommandFusion/DemoUserInterfaces/tree/master/AutoUpdate

Perhaps a change in Dropbox caused the problem. I found this!

https://www.dropboxforum.com/t5/Dropbox-API-Support-Feedback/Solved-Since-31-01-22-all-the-download-files-become-corrupted/td-p/576132

Regards,

Rodrigo

[Rodrigo Zogaib]

A few days ago it started working again but today the problem is back.

CF.log return this!

AUTO UPDATE ERROR: Both the 'Last-Modified' and 'Etag' headers were not sent with reply from the web server hosting the GUI file.

[Rodrigo Zogaib]

Dropbox recently updated the backend server to use "Transfer-Encoding: chunked" (and accordingly not return the "Content-Length" response header) on HTTP/1.1. Any direction of what needs to be edited in the script or needs to be rewritten from scratch?

[Jarrod Bell]

The problem is that dropbox have stopped sending back the eTag header with HEAD requests. This is how the script checks for updates to a dropbox file without actually fully downloading it every time.

The script has now been updated to use a different method (ranging) to do a GET request instead, which still includes the eTag headers, without the entire content of the file having to be downloaded.
https://github.com/CommandFusion/DemoUserInterfaces/blob/master/AutoUpdate/autoupdate.js

You will need to change the requestMethod param to be "GET" as well (in your main.js) like in the updated example:
https://github.com/CommandFusion/DemoUserInterfaces/blob/master/AutoUpdate/main.js

Regards,

Jarrod Bell
CommandFusion
www.commandfusion.com

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[Rodrigo Zogaib]

Hi Jarrod, thanks for the great support!
I made the indicated changes but it didn't work. CF.log return this!

> LAST AUTO UPDATE TOKEN:
> AUTO UPDATE ERROR: GUI File URL returned HTTP Code 206
> UPDATE NOT REQUIRED: NULL

When I comment this part of the code below, it works perfectly.

//                        } else if (status != "200") {
//                                CF.log("AUTO UPDATE ERROR: GUI File URL returned HTTP Code " + status);
//                                callback(null);

Regards,

Rodrigo

[Jarrod Bell]

Thanks for confirming - I have updated the JS again to allow for HTTP responses in 200-299 range.

Regards,

Jarrod Bell
CommandFusion
www.commandfusion.com

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[Rodrigo Zogaib]

Thanks Jarrod, great job!

Regards,

Rodrigo