After reading the following question (Authorization header in Ruby on Rails accessed with key HTTP_AUTHORIZATION instead of Authorization?) I have a similar problem as the OP, but the proposed answer does not seem to solve mine.
I define a custom header as such in a call to my locally hosted server (through Postman):
@Igor: I actually use Postman, so I just added the curl code to demonstrate what I did. I guess it would be better to include a screenshot:
And this is the code in my controller which tries to read said header:
def authenticate_through_header
custom_header_value = request.headers['custom_header']
end
However, this return nil
. On the other hand, request.headers['HTTP_CUSTOM_HEADER']
returns the value. According to the question I linked to initially, I should be able to get the value through passing the name within the brackets [ ] - is this something which has been changed in newer Rails versions?
Cheers :-)
Update: It also works to access the variable in the following way: request.headers['custom-header']
. So apparently it works to replace the underscore with a hyphen, which seems weird.
Answer
Yes, it has changed in Rails 4
. Take a look at the Http::Headers code.
Now custom variables are always prepended with HTTP_
and , except for CGI variables._
in your variables are replaced with -
HTH
EDIT: Just checked again, -
in variables are getting replaced with _
and being prepended with HTTP_
. In above link, check line number 91-94
:
key = key.upcase.tr('-', '_')
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