mirror of https://github.com/cmur2/dyndnsd.git
55 lines
1.8 KiB
Ruby
55 lines
1.8 KiB
Ruby
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module Dyndnsd
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module Responder
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class RestStyle
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def initialize(app)
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@app = app
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end
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def call(env)
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@app.call(env).tap do |status_code, headers, body|
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if headers.has_key?("X-DynDNS-Response")
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return decorate_dyndnsd_response(status_code, headers, body)
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else
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return decorate_other_response(status_code, headers, body)
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end
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end
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end
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private
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def decorate_dyndnsd_response(status_code, headers, body)
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if status_code == 200
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[200, {"Content-Type" => "text/plain"}, [get_success_body(body[0], body[1])]]
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elsif status_code == 422
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get_error_response_map[headers["X-DynDNS-Response"]]
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end
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end
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def decorate_other_response(status_code, headers, body)
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if status_code == 400
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[status_code, headers, "Bad Request"]
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elsif status_code == 401
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[status_code, headers, "Unauthorized"]
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end
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end
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def get_success_body(changes, myips)
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changes.map { |change| change == :good ? "Changed to #{myips.join(' ')}" : "No change needed for #{myips.join(' ')}" }.join("\n")
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end
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def get_error_response_map
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{
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# general http errors
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'method_forbidden' => [405, {"Content-Type" => "text/plain"}, ["Method Not Allowed"]],
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'not_found' => [404, {"Content-Type" => "text/plain"}, ["Not Found"]],
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# specific errors
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'hostname_missing' => [422, {"Content-Type" => "text/plain"}, ["Hostname missing"]],
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'hostname_malformed' => [422, {"Content-Type" => "text/plain"}, ["Hostname malformed"]],
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'host_forbidden' => [403, {"Content-Type" => "text/plain"}, ["Forbidden"]]
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}
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end
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end
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end
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end
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