rm config.ml

src/assets.ml

@@ -7,7 +7,59 @@
 (* docs: https://docs.taler.net/manpages/taler-exchange.conf.5.html
    https://docs.taler.net/design-documents/003-tos-rendering.html *)
 
-(* todo: maybe move this type to config.ml *)
+(* hardcoded config just for static assets *)
+module Config = struct
+  let default_lang = "en"
+  let default_encoding : [< `Identity | `DEFLATE | `Gzip ] = `Identity
+
+  (* TODO Taler documentation markdown mimetype should be the prefered one, and be
+   supported, according to DD we take text/plain as default instead for now *)
+  let default_mimetype = ("text", "plain")
+  let default_extension = ".txt"
+  let terms_dir = Fpath.(v "terms")
+  let privacy_dir = Fpath.(v "privacy")
+
+  (* ETAG is used as base filename it should be encoded in Crockford base-32 we do
+   not generate it and we do not verify it *)
+  let terms_etag = "0" |> Headers_lib.Etag.of_crockford32 |> Result.get_ok
+  let privacy_etag = "0" |> Headers_lib.Etag.of_crockford32 |> Result.get_ok
+  let terms_legal_version = "1"
+  let privacy_legal_version = "1"
+end
+
+module Mimetype = struct
+  let mimetype_extension_assoc =
+    [
+      (("text", "plain"), ".txt"); (("text", "markdown"), ".md");
+      (("text", "html"), ".html"); (("text", "html"), ".htm");
+      (("application", "pdf"), ".pdf"); (("image", "jpeg"), ".jpg");
+      (("image", "jpeg"), ".jpeg"); (("image", "png"), ".png");
+      (("image", "gif"), ".gif");
+    ]
+
+  let mimetype_l, _ = List.split mimetype_extension_assoc
+
+  let of_cohttp_media = function
+    | Cohttp.Accept.MediaType (m, m_sub) ->
+        List.find_opt (( = ) (m, m_sub)) mimetype_l
+    | AnyMediaSubtype m ->
+        List.find_opt (fun (m', _) -> String.equal m m') mimetype_l
+    | AnyMedia -> Some Config.default_mimetype
+
+  let to_extension (m, m_sub) =
+    assert (m <> "*");
+    assert (m_sub <> "*");
+    List.assoc_opt (m, m_sub) mimetype_extension_assoc
+
+  let of_extension ext =
+    List.find_map
+      (fun (mime, ext') ->
+        match String.equal ext ext' with false -> None | true -> Some mime)
+      mimetype_extension_assoc
+
+  let pp_mime fmt mime = Fmt.pf fmt "%s/%s" (fst mime) (snd mime)
+end
+
 type t =
   | Terms
   | Privacy
@@ -88,7 +140,7 @@ let supported_lang_arr, supported_ext_arr =
   (Array.of_list lang_l, Array.of_list ext_l)
 
 let supported_mimetype_arr =
-  Array.map Util.Mimetype.of_extension supported_ext_arr |> Array.map Option.get
+  Array.map Mimetype.of_extension supported_ext_arr |> Array.map Option.get
 
 let is_supported_lang lang = Array.mem lang supported_lang_arr
 let is_supported_ext ext = Array.mem ext supported_ext_arr
@@ -101,7 +153,7 @@ let is_supported_mimetype mime = Array.mem mime supported_mimetype_arr
 let get_content ~lang ~mime t =
   let etag = Headers_lib.Etag.to_raw_string (etag t) in
   let ext =
-    match Util.Mimetype.to_extension mime with
+    match Mimetype.to_extension mime with
     | None -> Fmt.failwith "mimetype `%s/%s` unknown" (fst mime) (snd mime)
     | Some ext -> ext
   in