26 lines
872 B
Scheme
26 lines
872 B
Scheme
(module dispatch-host mzscheme
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(require (lib "contract.ss")
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(lib "plt-match.ss")
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(lib "url.ss" "net")
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"../private/request-structs.ss"
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"../private/util.ss"
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"dispatch.ss")
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(provide/contract
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[interface-version dispatcher-interface-version?]
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[make ((symbol? . -> . dispatcher?) . -> . dispatcher?)])
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(define interface-version 'v1)
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(define ((make lookup-dispatcher) conn req)
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(define host (get-host (request-uri req) (request-headers/raw req)))
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((lookup-dispatcher host) conn req))
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;; get-host : Url (listof (cons Symbol String)) -> Symbol
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(define (get-host uri headers)
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(cond
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[(url-host uri)
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=> lowercase-symbol!]
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[(headers-assq* #"Host" headers)
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=> (match-lambda
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[(struct header (_ v))
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(lowercase-symbol! v)])]
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[else 'none]))) |