60 lines
1.7 KiB
Ruby
60 lines
1.7 KiB
Ruby
require "faraday"
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require "roda/proxy/version"
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class Roda
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module RodaPlugins
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module Proxy
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def self.configure(app, opts = {})
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app.opts[:proxy_to] = opts.fetch(:to, nil)
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app.opts[:proxy_path] = opts.fetch(:path, '/')
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raise 'Proxy host not set, use "plugin :proxy, to: http://example.com"' unless app.opts[:proxy_to]
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end
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module RequestMethods
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def proxy
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#pp @_request.env
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#pp @_request.body.read
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method = Faraday.method(env['REQUEST_METHOD'].downcase.to_sym)
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pp _proxy_url
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pp _proxy_headers
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pp roda_class
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f_response = method.call(_proxy_url) { |req| _proxy_request(req) }
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response.status = f_response.status
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f_response.headers.each { |k,v| response[k] = v }
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response.write(f_response.body)
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halt
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end
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private
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def _proxy_url
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@_proxy_uri ||= URI(roda_class.opts[:proxy_to])
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.then { |uri| uri.path = roda_class.opts[:proxy_path] ; uri }
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.then { |uri| uri.query = env['QUERY_STRING'] ; uri }
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end
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def _proxy_headers
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env
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.select { |k,_v| k.start_with? 'HTTP_'}
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.reject { |k,_v| k == 'HTTP_HOST' }
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.transform_keys do |k|
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k.sub(/^HTTP_/, '')
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.split('_')
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.map(&:capitalize)
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.join('-')
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end.merge({ 'Host' => "#{_proxy_url.host}:#{_proxy_url.port}" })
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end
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def _proxy_request(req)
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req.headers = _proxy_headers
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end
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end
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end
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register_plugin :proxy, Proxy
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end
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end
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