Remove HTTP Host header entirely #1672
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zachmargolis
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**Why**: Malformed host headers cause exceptions
jmhooper
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Sep 14, 2017
| @@ -33,7 +33,8 @@ class Application < Rails::Application | |||
| event.payload.except(:params, :headers) | |||
| end | |||
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| config.middleware.insert_before 0, Rack::HeadersFilter | |||
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It looks like the rack-header-filter gem let's you call this with a blacklist. Why not do that here?
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Oh thanks, I'd missed that gem entirely, will update
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Ok, so that gem deletes outgoing headers, not incoming headers, I don't think we can use it here
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Extremely frown town 😿
jmhooper
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Sep 14, 2017
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Why: Malformed host headers cause exceptions
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I basically rewrote the middleware gem we added in #1663 because that gem only delete a particular 5 headers, not including
HTTP_HOSTso in order to delete that I had to get around itI would be open to removing the dependency entirely, but this seemed like an easier way to just re-use the list of headers we don't trust