problem

When using http2 in near future, http header field names are only used in lowercase, since there will be no difference anymore in upper / lowercase. In consequence headers are delivered in lowercase to translate5 and we have to convert all access to lowercase.

This can be already done now by converting everytime to lowercase.

Currently we probably have the following headers on receiving requests:

• Translate5AuthToken
• Accept → handled by Zend internal mechanisms, here it must be evaluated if a sanitized usage is already done
• Probably the OpenID usage

On sending this is also the case, at least:

• maintenance mode headers
• translate5 version headers

Others?

When using Zend_Controller_Request_Http::getHeader this is done implicitly, so I assume that affects only places where we did implement that manually.

solution

Convert all headers to lowercase before usage, convert all internally defined header names also to lowercase.