uploads and downloads

kwpcdp · **Joined:** Wed Mar 22, 2006 10:16 am **Posts:** 1

Hi,
I am having problems running dynamic web twain on a web server. It is all working correctly on my local machine but when I put it on the web server, the problems start.

1. I have one pc where everything works correctly. This machine does not have the dev software on it.

2. On most of the machines the page loads and displays correctly, but when I try to upload images I get an error that says, The server returned an invalid or unrecognized response, in the errorstring property. I tried the httppostresponsestring but that showed nothing. The really weird part is every once in a while it works, this has happened maybe twice. This has happened on machines with the dev software and without it.

3. On most of these machines, but not all, when I try to download images from the server to be displayed in the control ie. just hangs for approximately 5 min. and never gets the image or an error that I can tell.

This is driving me crazy so any help would be appreciated.

Thanks, Keith Parrish

jjrohrer · **Joined:** Wed Mar 15, 2006 5:33 pm **Posts:** 5

I am experiencing the exact same symptoms, but the cause, for me, seems to be related to switching from a completely unencrypted site to a pure https/ssl site. I can keep my web pages SSL'd, but if I post on port 443 instead of port 80, then I get those intermittent results that you described. I hope this helps.
FYI - Here is the code I use to upload:

Code:

function btnUpload_onclick_duplex()
   {

      //frmScan.DynamicWebTwain1.IfDuplexEnabled   = true;
      frmScan.DynamicWebTwain1.XferCount = 50;
      //frmScan.DynamicWebTwain1.HTTPPort = 80;                     //the web service's port
      frmScan.DynamicWebTwain1.HTTPPort = 443;                     //the web service's SSL port
      frmScan.DynamicWebTwain1.HTTPUploadAllThroughPostAsMultiPageTIFF("<?=$_SERVER["SERVER_NAME"]?>", "<?=getUrl()?>remotescan_saveToFile.php", "doesnmatter_will_be_overwritten_on_save.tiff");

      if (frmScan.DynamicWebTwain1.ErrorCode != 0) {
         alert("Error:" + frmScan.DynamicWebTwain1.ErrorString);
         alert("Error: Technical Details" + frmScan.DynamicWebTwain1.HTTPPostResponseString);
      }
      else                                       //succeded
         frmScan.submit();
   }

Catherine · **Joined:** Tue Mar 08, 2005 12:23 am **Posts:** 1075

Hi kwpcdp,

As we have discussed over the phone, please email your .lpk, .cab and a simplified web page to twainsupport@dynamsoft.com and we will pinpoint the problem for you.

Thanks.

Catherine · **Joined:** Tue Mar 08, 2005 12:23 am **Posts:** 1075

Hi jjrohrer,

Can you upload to port 80 successfully?

jjrohrer · **Joined:** Wed Mar 15, 2006 5:33 pm **Posts:** 5

Uploading to port 80 works fine. I've tested uploading to port 80 from an http page and from an https page - both work great.
JJ

nmadieh · **Joined:** Mon Jan 16, 2006 12:08 am **Posts:** 7

Hi,

I am facing the same problems with the Upload method, especially the weird part where it worked with me for about 3 times.

We bought the control since 1 month and we are still unable to deploy it because of this problem.

On my machine it works fine when giving the host name for the method, but if you are giving the IP address it doesnot work fine. On the production web server it doesnot work even if you provide the host name.

Check my post on this issue:

http://www.dynamsoft.com/forum/viewtopic.php?t=402

Catherine · **Joined:** Tue Mar 08, 2005 12:23 am **Posts:** 1075

The problem described above is caused by a bug of Dynamic Web TWAIN.

The new version has gone through our internal test and the official version will be released in 1 week.

Here, I want to thank those customers who participate in the beta test of the new version.

Thanks.

nmadieh · **Joined:** Mon Jan 16, 2006 12:08 am **Posts:** 7

How are we going to get this new release?
What about uploading to servers behind a proxy? Do we have a solution for this issue too?

Thanks for your update and support.

Catherine · **Joined:** Tue Mar 08, 2005 12:23 am **Posts:** 1075

We will release the new version and email all the purchased customers next week.

Quote:

What about uploading to servers behind a proxy? Do we have a solution for this issue too?

Could you please describe the proxy issue so that we can look into it?

Thanks.

Dynamsoft TWAIN Products

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