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# frozen-string-literal: true
module Rodauth
Feature.define(:jwt_cors, :JwtCors) do
depends :jwt
auth_value_method :jwt_cors_allow_origin, false
auth_value_method :jwt_cors_allow_methods, 'POST'
auth_value_method :jwt_cors_allow_headers, 'Content-Type, Authorization, Accept'
auth_value_method :jwt_cors_expose_headers, 'Authorization'
auth_value_method :jwt_cors_max_age, 86400
auth_methods(:jwt_cors_allow?)
def jwt_cors_allow?
return false unless origin = request.env['HTTP_ORIGIN']
case allowed = jwt_cors_allow_origin
when String
timing_safe_eql?(origin, allowed)
when Array
allowed.any?{|s| timing_safe_eql?(origin, s)}
when Regexp
allowed =~ origin
when true
true
else
false
end
end
private
def before_rodauth
if jwt_cors_allow?
set_response_header('access-control-allow-origin', request.env['HTTP_ORIGIN'])
# Handle CORS preflight request
if request.request_method == 'OPTIONS'
set_response_header('access-control-allow-methods', jwt_cors_allow_methods)
set_response_header('access-control-allow-headers', jwt_cors_allow_headers)
set_response_header('access-control-max-age', jwt_cors_max_age.to_s)
response.status = 204
return_response
end
set_response_header('access-control-expose-headers', jwt_cors_expose_headers)
end
super
end
end
end
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