28 lines
892 B
Ruby
28 lines
892 B
Ruby
# frozen_string_literal: true
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module Middleware
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class EnforceHostname
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def initialize(app, settings = nil)
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@app = app
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end
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def call(env)
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# enforces hostname to match the hostname of our connection
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# this middleware lives after rails multisite so at this point
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# Discourse.current_hostname MUST be canonical, enforce it so
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# all Rails helpers are guaranteed to use it unconditionally and
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# never generate incorrect links
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env[Rack::Request::HTTP_X_FORWARDED_HOST] = nil
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allowed_hostnames = RailsMultisite::ConnectionManagement.current_db_hostnames
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requested_hostname = env[Rack::HTTP_HOST]
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env[Discourse::REQUESTED_HOSTNAME] = requested_hostname
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env[Rack::HTTP_HOST] = allowed_hostnames.find { |h| h == requested_hostname } ||
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Discourse.current_hostname_with_port
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@app.call(env)
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end
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end
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end
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