apache2.4siteminder

Apache - Convert underscores to dashes in headers

In a project a had to run CA Webagent Siteminder which sends me legacy headers with underscores. Since Apache 2.4 underscores are deprecated and dropped silently.

I need a workaround via mod_headers which converts all underscores _ to dashes - in the request-header.

Before

legacy_header_one
legacy_header_two
legacy_header_three

After

legacy-header-one
legacy-header-two
legacy-header-three
Solution

  • You have two options here:

    1. Apache Bypass

      # 
# The following works around a client sending a broken Accept_Encoding
# header.
#
SetEnvIfNoCase ^Accept.Encoding$ ^(.*)$ fix_accept_encoding=$1
RequestHeader set Accept-Encoding %{fix_accept_encoding}e env=fix_accept_encoding

    2. Siteminder Bypass

      #its not explicitly stated but im assuming this should be in your WebAgent.conf file
LegacyVariables="NO"

    EDIT:

    I know this doesn't directly answer your question of converting from _ to - but it is an answer to help mitigate the Apache 2.4 vs. CA Siteminder header issue.