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<div>This is great, I'll give this a shot and report back!</div>
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<span style="font-weight:bold">From: </span>Per Buer <<a href="mailto:perbu@varnish-software.com">perbu@varnish-software.com</a>><br>
<span style="font-weight:bold">Date: </span>Fri, 9 Dec 2011 09:48:48 +0100<br>
<span style="font-weight:bold">To: </span>Jason Farnsworth <<a href="mailto:jason@pethub.com">jason@pethub.com</a>><br>
<span style="font-weight:bold">Cc: </span>"<a href="mailto:varnish-misc@varnish-cache.org">varnish-misc@varnish-cache.org</a>" <<a href="mailto:varnish-misc@varnish-cache.org">varnish-misc@varnish-cache.org</a>><br>
<span style="font-weight:bold">Subject: </span>Re: Rewriting/enforcing SSL behing an SSL termination point<br>
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On Fri, Dec 9, 2011 at 8:08 AM, Jason Farnsworth <span dir="ltr"><<a href="mailto:jason@pethub.com">jason@pethub.com</a>></span> wrote:<br>
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<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
We are hosted on Amazon Web Services and all SSL termination is done by an<br>
Elastic Load Balancer. So all I'm looking to do is re-write URLs like<br>
this<br>
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<a href="http://domain.com" target="_blank">http://domain.com</a> -> <a href="https://www.domain.com" target="_blank">
https://www.domain.com</a><br>
<a href="http://www.domain.com" target="_blank">http://www.domain.com</a> -> <a href="https://www.domain.com" target="_blank">
https://www.domain.com</a><br>
<a href="https://domain.com" target="_blank">https://domain.com</a> -> <a href="https://www.domain.com" target="_blank">
https://www.domain.com</a></blockquote>
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<div>Varnish will not rewrite the actual content coming from the backend. We can however, _redirect_ the client whenever they ask for a http:// URL.</div>
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<div>We use the following code on <a href="http://varnish-cache.org">varnish-cache.org</a> to do this:</div>
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<div>in vcl_recv:</div>
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<div> if ( (req.http.host ~ "(?i)<a href="http://www.varnish-cache.org">www.varnish-cache.org</a>") && !(client.ip ~ localhost)) {</div>
<div> set req.http.x-redir-url = "https://" + req.http.host + req.url;</div>
<div> error 750 req.http.x-redir-url;</div>
<div> }</div>
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<div>(..)</div>
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<div>sub vcl_error {</div>
<div> # standard redirection in VCL:</div>
<div> if (obj.status == 750) {</div>
<div> set obj.http.Location = obj.response;</div>
<div> set obj.status = 302;</div>
<div> return(deliver);</div>
<div> }</div>
<div>}</div>
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<div> </div>
<div>Since we have an SSL terminator in front of Varnish client.ip is localhost when there is SSL present. You might want to change the code to test
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X-Forwarded-Proto for whatever it is set to.</span></div>
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-- <br>
<img src="http://www.varnish-software.com/sites/default/files/varnishsoft_white_190x47.png">
<div>Per Buer, CEO<br>
Phone: +47 21 98 92 61 / Mobile: +47 958 39 117 / Skype: per.buer<br>
<i>Varnish makes websites fly!</i>
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