Remove parse_uri, switch to using Uri module instead

ocaml/libs/http-lib/http.ml

@@ -208,15 +208,6 @@ let parse_keyvalpairs xs =
       )
     kvpairs
 
-let parse_uri x =
-  match Astring.String.cuts ~sep:"?" x with
-  | [uri] ->
-      (uri, [])
-  | [uri; params] ->
-      (uri, parse_keyvalpairs params)
-  | _ ->
-      raise Http_parse_failure
-
 type authorization = Basic of string * string | UnknownAuth of string
 [@@deriving rpc]
 
@@ -629,42 +620,6 @@ module Request = struct
 
   let get_version x = x.version
 
-  let of_request_line x =
-    match Astring.String.fields ~empty:false x with
-    | [m; uri; version] -> (
-        (* Request-Line   = Method SP Request-URI SP HTTP-Version CRLF *)
-        let uri, query = parse_uri uri in
-        (* strip the "HTTP/" prefix from the version string *)
-        match Astring.String.cut ~sep:"/" version with
-        | Some (_, version) ->
-            {
-              m= method_t_of_string m
-            ; frame= false
-            ; uri
-            ; query
-            ; content_length= None
-            ; transfer_encoding= None
-            ; accept= None
-            ; version
-            ; cookie= []
-            ; auth= None
-            ; task= None
-            ; subtask_of= None
-            ; content_type= None
-            ; host= None
-            ; user_agent= None
-            ; close= false
-            ; additional_headers= []
-            ; body= None
-            ; traceparent= None
-            }
-        | None ->
-            error "Failed to parse: %s" x ;
-            raise Http_parse_failure
-      )
-    | _ ->
-        raise Http_parse_failure
-
   let to_string x =
     let kvpairs x =
       String.concat "; " (List.map (fun (k, v) -> k ^ "=" ^ v) x)

ocaml/libs/http-lib/http.mli

@@ -119,10 +119,6 @@ module Request : sig
   val get_version : t -> string
   (** [get_version t] returns the HTTP protocol version *)
 
-  val of_request_line : string -> t
-  (** [of_request_line l] parses [l] of the form "METHOD HTTP/VERSION" and
-      		returns the corresponding [t] *)
-
   val to_string : t -> string
   (** [to_string t] returns a short string summarising [t] *)
 
@@ -176,8 +172,6 @@ end
 
 val authorization_of_string : string -> authorization
 
-val parse_uri : string -> string * (string * string) list
-
 val http_403_forbidden : ?version:string -> unit -> string list
 
 val http_200_ok : ?version:string -> ?keep_alive:bool -> unit -> string list

ocaml/libs/http-lib/http_svr.ml

@@ -359,6 +359,12 @@ let request_of_bio_exn ~proxy_seen ~read_timeout ~total_timeout ~max_length bio
     proxy |> Option.fold ~none:[] ~some:(fun p -> [("STUNNEL_PROXY", p)])
   in
   let open Http.Request in
+  (* Below transformation only keeps one value per key, whereas
+     a fully compliant implementation following Uri's interface
+     would operate on list of values for each key instead *)
+  let kvlist_flatten ls =
+    List.map (function k, v :: _ -> (k, v) | k, [] -> (k, "")) ls
+  in
   let request =
     Astring.String.cuts ~sep:"\n" headers
     |> List.fold_left
@@ -367,7 +373,10 @@ let request_of_bio_exn ~proxy_seen ~read_timeout ~total_timeout ~max_length bio
              match Astring.String.fields ~empty:false header with
              | [meth; uri; version] ->
                  (* Request-Line   = Method SP Request-URI SP HTTP-Version CRLF *)
-                 let uri, query = Http.parse_uri uri in
+                 let uri_t = Uri.of_string uri in
+                 if uri_t = Uri.empty then raise Http_parse_failure ;
+                 let uri = Uri.path uri_t |> Uri.pct_decode in
+                 let query = Uri.query uri_t |> kvlist_flatten in
                  let m = Http.method_t_of_string meth in
                  let version =
                    let x = String.trim version in