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# frozen_string_literal: true
require "erb"
require "action_dispatch/http/request"
require "active_support/actionable_error"
module ActionDispatch
class ActionableExceptions # :nodoc:
cattr_accessor :endpoint, default: "/rails/actions"
def initialize(app)
@app = app
end
def call(env)
request = ActionDispatch::Request.new(env)
return @app.call(env) unless actionable_request?(request)
ActiveSupport::ActionableError.dispatch(request.params[:error].to_s.safe_constantize, request.params[:action])
redirect_to request.params[:location]
end
private
def actionable_request?(request)
request.show_exceptions? && request.post? && request.path == endpoint
end
def redirect_to(location)
body = "<html><body>You are being <a href=\"#{ERB::Util.unwrapped_html_escape(location)}\">redirected</a>.</body></html>"
[302, {
"Content-Type" => "text/html; charset=#{Response.default_charset}",
"Content-Length" => body.bytesize.to_s,
"Location" => location,
}, [body]]
end
end
end
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