Forum OpenACS Q&A: Updating header before calling ns_returnredirect

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1: Updating header before calling ns_returnredirect
Posted by Sunil Shenoy on 04/21/17 04:27 PM
Hi,
I need to add a header before calling ns_returnredirect but somehow not succeeding to do it. As suggested in one of the aolserver articles, I tried the following but no success:

ns_set put [ns_conn outputheaders] myHeader $myHeaderValue
ns_returnredirect $location

Any suggestions?

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2: Re: Updating header before calling ns_returnredirect (response to 1)
Posted by Gustaf Neumann on 04/21/17 07:16 PM
Hi Sunil,

The following script named "redirect.tcl" 

ns_set put [ns_conn outputheaders] myHeader foo
ns_returnredirect /
returns the following to the browser 
Connection:keep-alive
Content-Length:307
Content-Type:text/html; charset=utf-8
Date:Fri, 21 Apr 2017 17:07:45 GMT
Location:/
myHeader:foo
Server:NaviServer/4.99.16d4
... so, the extra header is includes, everything works as expected. This is with NaviServer 4.99.16d4.

What exact server are you using?
-g

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3: Re: Updating header before calling ns_returnredirect (response to 1)
Posted by Sunil Shenoy on 04/21/17 10:16 PM
Thanks Gustaf,

I am using AOLserver/3.5.11 ..... thought the code you mentioned should function the same way; but apparently it does not.

Regards,
Sunil

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4: Re: Updating header before calling ns_returnredirect (response to 1)
Posted by Gustaf Neumann on 04/21/17 10:51 PM
AOLserver/3.5.11 was released in 2003, more than 13 years ago! You should upgrade at least to AOLserver/4.5.2, i would expect this to code to work there the same way as in NaviServer.
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5: Re: Updating header before calling ns_returnredirect (response to 1)
Posted by Sunil Shenoy on 04/22/17 01:25 AM
Thank you very much Gustaf.

Regards,
Sunil

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6: Re: Updating header before calling ns_returnredirect (response to 1)
Posted by Brian Fenton on 04/24/17 10:39 AM
Hi Sunil

AOLserver/3.5.11 is not *that* old that it should have a different way of writing headers.

One thing you could try is to search your existing codebase for examples of how headers are set. Presumably it's working, so it is just a matter of finding it. For example, search for where cookies are created. If you are not using OpenACS, the headers might be written with just a raw ns_write.

Let us know if you need more help
Brian