[racket] Too Many Redirects (Apache)

On Sep 16, 2011, at 10:51 AM, Jay McCarthy wrote:

> I've done it before, it's easy and works, but I can't seem to find the code...

Can you recall of the top of your head whether you can use ffi-lib on libc.dylib? If so, no C code would be required at all.

John

> 
> Jay
> 
> On Fri, Sep 16, 2011 at 11:31 AM, John Clements
> <clements at brinckerhoff.org> wrote:
>> 
>> On Sep 16, 2011, at 6:59 AM, Jeremy Kun wrote:
>> 
>>> Oops, meant to reply-all
>>> 
>>> Jeremy
>> 
>> One other relevant thought; how hard would it be to throw out Apache and just use setuid to demote racket's privileges after starting? I don't see a built-in binding for setuid--presumably because it's completely platform-specific--but it should be less than 30 lines of code, including the C and the racket. Jay, have you done this? (Maybe this code is just sitting around somewhere?)
>> 
>> John
>> 
>> 
>>> 
>>> 
>>> On Fri, Sep 16, 2011 at 8:59 AM, Jeremy Kun <kun.jeremy at gmail.com> wrote:
>>> The redirects are hitting port 8080, via the rules verbatim from that FAQ. Literally, I have the following in my httpd.conf:
>>> 
>>> RewriteEngine on
>>> RewriteRule ^(.*)$ http://localhost:8080/$1 [P,NE]
>>> 
>>> So I'm hitting my server at http://racket01.csc.calpoly.edu, and I get that redirect loop.
>>> 
>>> I can't send a request directly to 8080 from outside because my server admin has blocked those ports, hence my desire to do this forwarding. I also can't enable permissions for racket to use <1024 ports via setcap, since the kernel I'm using is not recent enough.
>>> 
>>> And in case this will help, these are my serve/servlet options:
>>> 
>>> (serve/servlet
>>>  start
>>>  #:launch-browser? #f
>>>  #:quit? #f
>>>  #:listen-ip #f
>>>  #:servlet-path "/"
>>>  #:port 8080
>>>  #:log-file (build-path "/home/jkun/racket/log.txt")
>>>  #:extra-files-paths (list (build-path "/home/jkun/racket")))
>>> 
>>> Any ideas?
>>> 
>>> Jeremy
>>> 
>>> 
>>> 
>>> On Fri, Sep 16, 2011 at 6:29 AM, Jay McCarthy <jay.mccarthy at gmail.com> wrote:
>>> I think I've seen that before and I thought it meant the redirect was
>>> set up wrong, but it doesn't seem like you have done that.
>>> 
>>> What URL are the GETs to? What happens when you go to it directly?
>>> 
>>> Jay
>>> 
>>> On Thu, Sep 15, 2011 at 11:13 PM, Jeremy Kun <kun.jeremy at gmail.com> wrote:
>>>> I'm trying to set up Apache to redirect to the Racket web server on port
>>>> 8080. Originally after modifying my http configuration file to include the
>>>> correct RewriteEngine and RewriteRule lines from this page, I got the
>>>> following error message:
>>>> [Thu Sep 15 21:43:19 2011] [error] (13)Permission denied: proxy: HTTP:
>>>> attempt to connect to 127.0.0.1:8080 (*) failed
>>>> A quick google search gives that the problem might be in the SELinux
>>>> security setting: Allow HTTPD scripts and modules to connect to the
>>>> network, which I suppose is turned off. So I ran
>>>> sudo /usr/sbin/setsebool httpd_can_network_connect 1
>>>> Now it appears to redirect (the racket web server logs show GET requests
>>>> from 127.0.0.1), but now it appears to be stuck in an infinite redirect
>>>> loop, resulting in the following Apache error message:
>>>> [Thu Sep 15 21:57:49 2011] [error] (111)Connection refused: proxy: HTTP:
>>>> attempt to connect to 127.0.0.1:8080 (*) failed
>>>> And an error page with Error 310 (net::ERR_TOO_MANY_REDIRECTS)
>>>> Has anyone else encountered this problem? I can't figure out where the
>>>> redirection is breaking down. There aren't any error messages in the racket
>>>> error logs, just an unnaturally large number of GET requests from 127.0.0.1.
>>>> Regards,
>>>> Jeremy
>>>> 
>>>> _________________________________________________
>>>>  For list-related administrative tasks:
>>>>  http://lists.racket-lang.org/listinfo/users
>>>> 
>>> 
>>> 
>>> 
>>> --
>>> Jay McCarthy <jay at cs.byu.edu>
>>> Assistant Professor / Brigham Young University
>>> http://faculty.cs.byu.edu/~jay
>>> 
>>> "The glory of God is Intelligence" - D&C 93
>>> 
>>> 
>>> _________________________________________________
>>>  For list-related administrative tasks:
>>>  http://lists.racket-lang.org/listinfo/users
>> 
>> 
> 
> 
> 
> -- 
> Jay McCarthy <jay at cs.byu.edu>
> Assistant Professor / Brigham Young University
> http://faculty.cs.byu.edu/~jay
> 
> "The glory of God is Intelligence" - D&C 93

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