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flygecko's avatar
flygecko
Explorer | Level 4
7 years ago

Over the air download via API fails today, worked yesterday.

Hi,   I have an embedded device that downlopads firmware updates over the air via the DropBox API.  Downloads worked fine yesterday, and fail today.  The code has not changed since then, and I even ...
API
Greg-DB's avatar
Greg-DB
Icon for Dropbox Staff rankDropbox Staff

It looks like the call to /2/files/get_temporary_link itself is succeeding, since it is showing the retrieved /apitl link. It looks like the log might be cut off unfortunately though.

I just retrieved an /apitl link from /2/files/get_temporary_link myself and it seems to be working. Can you get a fresh one from your app and try it manually (perhaps with any additional verbose logging possible) to see if it's working on your side, or what it's returning that might be causing issues in your app?

 

flygecko's avatar
flygecko
Explorer | Level 4
7 years ago

What I have seen on my side is that the filename returned is 553 bytes in length.  The TI code has a buffer length of 512.  This would most certainly cause an issue.  How big is the url you received when you retrieve the apitl link?

 

Thanks in advance,

Vic

  • Greg-DB's avatar
    Greg-DB
    Icon for Dropbox Staff rankDropbox Staff
    7 years ago

    Thanks for the additional information.

    The length of the returned link can depend on the length of the original file path (as well as potentially other factors), so we can't guarantee any particular maxmimum length unfortunately. (For reference, mine is also coming out longer than 512 bytes.)

    So, this may have just been a result of the file path getting longer and resulting in a URL larger than that buffer size. I'm afraid I don't have a solution on the API side, since the link can be expected to get that big. Are you able to increase the buffer size?

     

    • flygecko's avatar
      flygecko
      Explorer | Level 4
      7 years ago

      In future revisions most likely.  This does not bode well for any devices already out in the field.  I will work on fixing TI's code and see what I can do.  Thank you for the help.

    • flygecko's avatar
      flygecko
      Explorer | Level 4
      7 years ago

      Is there a maximum size?  If I am going to be fixing this I would like to do it only once.

      Thanks,

      Vic

      • Greg-DB's avatar
        Greg-DB
        Icon for Dropbox Staff rankDropbox Staff
        7 years ago

        No, there's no maximum size for the link.

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