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I have trouble uploading files with SWFUpload when target servlet is listening on HTTPS. On HTTP it works fine.

The issue is only when using FireFox or Opera. On IE it works fine - not tried other browsers.

EDIT: Error message as provided from SWFUpload when in debug mode:

SWF DEBUG: Event: uploadProgress (OPEN): File ID: SWFUpload_0_0 SWF DEBUG: Event: uploadError : IO Error : File ID: SWFUpload_0_0. IO Error: Error #2038 SWF DEBUG: Event: uploadComplete : Upload cycle complete.

Drejc
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  • Error message as provided from SWF in EDIT section of message. – Drejc Nov 27 '09 at 16:16
  • @Drejc do u have an url I could hit to check the certificate? u added in an answer that the certificate issue seems to be with the certificate authority, did u already confirmed it's that? – eglasius Nov 28 '09 at 01:39
  • Sorry but I can't give you the URL. Currently we are setting up our server to be the certificate authority so we can try If it is really the issue. – Drejc Nov 28 '09 at 20:36

5 Answers5

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Possibly a certificate related issue.

Check if there are any certificate related warnings when you open the target site in those browsers.

Open the certificate and check for warnings in there as well.

eglasius
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3

It's for sure a certificate issue - it will work with HTTPS, Firefox and an official certificate.

I use SWFUpload in combination with HTTPS on the site invoiceplatform.com and it works with IE, Safari, Firefox and Chrome (did not test other browsers). On the test server Firefox doesn't work with HTTPS because there's no official certificate configured.

penguintux
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2038 Is a Flash IO Error:

"Flash IO Errors are not very helpful. The same couple of error numbers are returned for just about everything.

Here are some common issues that cause these error codes:

  • Invalid URL
  • Server max post size or max upload size exceeded
  • Server unexpectedly terminates the connection
  • Zero byte file uploaded
  • Basic Authentication failed

To debug these issues I first verify that my upload is working using a standard HTML upload form pointing at my upload.php"

If it were http I'd suggest using fiddler or wireshark but I don't think that will help for https.

Mike Blandford
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    It working perfectly on HTTP and the servlet also works. The issue occurs only on HTTPS and FF / Opera. I assume it's some certificate issue as Freddy mentioned but the hard thing is to find out why. – Drejc Nov 27 '09 at 16:46
1

It appears to be a certificate authority issue: SWF discussion over HTTPS

Drejc
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0

Last time I had some huge problem on site with ssl security and SWFUpload and other flash uploaders. There was always error #2038. Additionally there was a problem with sharing content from https site on Facebook. I have spent a lot of hours to find the solution and I found it! There was problem with ssl certificates.

First of all you will need original and not self generated certificates if you have same issue because Flash has problems with second ones. The site server is on Nginx so you will install certificates properly here is the instruction. And the main point is Concatenate the primary certificate and intermediate certificate. If you won’t do it yours page will be working properly but not the flash uploader and even when you try to

curl https://your-site.com

you might see error that explains that there is problem with certificate.

What is interesting that on Windows and Mac Os machines the flash works properly even without concatenating certificates and there is problem on Ubuntu. But on every system is problem with sharing on Facebook as it depends on FB servers configuration.

sra
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snikolau
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  • What's the ubuntu problem? I'm currently experiencing 'some' users with firefox having trouble, I have a real SSL and I have no probs with my firefox, some people do however. – ChrisAdmin Oct 18 '14 at 11:46
  • Same problem here ChrisAdmin. Did you find a solution? – user1876422 Sep 29 '16 at 13:24