52 lines
1.7 KiB
OCaml
52 lines
1.7 KiB
OCaml
let pp_array pp_item item = Fmt.array ~sep:(Fmt.any ", ") pp_item item
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let accept_header_value =
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let s =
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Fmt.str "%a"
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(pp_array Assets.Mimetype.pp_mime)
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Assets.supported_mimetype_arr
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in
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s
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let avail_languages_header_value =
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let s = Fmt.str "%a" (pp_array Fmt.string) Assets.supported_lang_arr in
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s
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let select_mimetype headers =
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let accept = Vif.Headers.get headers "accept" in
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Cohttp.Accept.media_ranges accept
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|> Cohttp.Accept.qsort
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|> List.filter_map (fun (_q, (m, _p)) -> Assets.Mimetype.of_cohttp_media m)
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|> List.find_opt Assets.is_supported_mimetype
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let select_language headers =
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let accept_language = Vif.Headers.get headers "accept-language" in
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Cohttp.Accept.languages accept_language
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|> Cohttp.Accept.qsort
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|> List.map (fun (_q, lang) -> lang)
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|> List.map (function
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| Cohttp.Accept.AnyLanguage -> Assets.Config.default_lang
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| Language language_range -> (
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(* ignore language subtags (e.g. "en-US" -> "en") *)
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match language_range with
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| [] -> assert false
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| primary_tag :: _ -> primary_tag))
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|> List.find_opt Assets.is_supported_lang
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|> Option.value ~default:Assets.Config.default_lang
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let select_encoding headers =
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Vif.Headers.get headers "accept-encoding"
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|> Cohttp.Accept.encodings
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|> Cohttp.Accept.qsort
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|> List.map snd
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|> List.filter_map (function
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| Cohttp.Accept.Identity -> Some `Identity
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| Deflate -> Some `DEFLATE
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| Gzip -> Some `Gzip
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| AnyEncoding -> Some Assets.Config.default_encoding
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| Encoding _ | Compress -> (* unsupported *) None)
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|> function
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| [] -> assert false
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| `Identity :: _ -> None
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| `DEFLATE :: _ -> Some `DEFLATE
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| `Gzip :: _ -> Some `Gzip
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