MOSS 2007 - TMG 2010 - InfoPath Forms

I have a friend with the following:

Public facing SharePoint site, accessed through TMG 2010.  We would like to put an InfoPath form on the site that allows anonymous submissions.  The vendor that is hosting the site/hardware is telling us it's not possible with TMG.

Anyone know the answer?
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Justin SmithSr. System EngineerAsked:
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Justin SmithConnect With a Mentor Sr. System EngineerAuthor Commented:
Got the answer from Microsoft.......

No, InfoPath will not allow anonymous access to submit a form. This is by design and is a security issue.
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simonlimonCommented:
Hm,

I would try doing the following:

I assume your internal URL for the form  is:

http://MOSSSERVER.Mydomain.com/Sites/Default/blablavla/DEfault.aspx

Am I Correct?

I would create a HTTPS publishing Rule where I would Publish The above website on a HTTPS Listener, And for the allowed path in the publish rule I would Enter http://MOSSSERVER.Mydomain.com/Sites/Default/blablavla/*. The Listener would have to be configured to "Not require authentication and not allow clients to authenticate directly"

The External URL would look like this:

Https://www.mydomain.com/Sites/Default/blablavla/DEfault.aspx

You could also make it prettier by mapping the Path

http://MOSSSERVER.Mydomain.com/Sites/Default/blablavla/*

to

Https://www.mydomain.com/default.aspx

Did the vendor specify a reason as to why this can't work?

You can also look a this, It might give you a hint:

http://www.isaserver.org/tutorials/Publishing-Windows-Server-2008-SSL-VPN-Server-Using-ISA-2006-Firewalls-Part2.html

Find the part "Configure the ISA Firewall with an PPTP VPN Server, SSL VPN Server and CDP Web Publishing Rule"


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Justin SmithSr. System EngineerAuthor Commented:
This is the issue we get when submitting a form from an anonymous user.  We were able to repeat the error in an environment without TMG:

"Form submission failed. (User: , Form Name: Test, IP: , Request: http://vm-park-outr/_layouts/Postback.FormServer.aspx, Form ID: urn:schemas-microsoft-com:office:infopath:Test:-myXSD-2010-08-20T17-43-26, Type: DataAdapterException, Exception Message: The form cannot be submitted to the following location: http://vm-park-outr/Test/2010-08-20T14_36_06.xml. There is a problem with the Web server. Make sure the Web server exists, try again later or contact the Web server administrator. Access denied.)"
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simonlimonCommented:
So If I understand correctly, MOSS seems to be the problem, as it won't accept anonymous authentication?
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Justin SmithSr. System EngineerAuthor Commented:
yep.  seems to be a common problem out there.  no problem submitting anon to a list.  but to a doc or form library, seems to be difficult.
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simonlimonCommented:
On the other hand, have you added a mapping for the external URL to the MOSS server ?
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Justin SmithSr. System EngineerAuthor Commented:
nope, we've already set that.
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