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Add a charset option to cowboy_static

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Loïc Hoguin 2018-11-02 15:31:54 +01:00
parent 9569043bdd
commit 571719a164
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3 changed files with 87 additions and 3 deletions
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18
src/cowboy_static.erl
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@ -19,11 +19,13 @@
-export([malformed_request/2]).
-export([forbidden/2]).
-export([content_types_provided/2]).
-export([charsets_provided/2]).
-export([resource_exists/2]).
-export([last_modified/2]).
-export([generate_etag/2]).
-export([get_file/2]).
-type extra_charset() :: {charset, module(), function()} | {charset, binary()}.
-type extra_etag() :: {etag, module(), function()} | {etag, false}.
-type extra_mimetypes() :: {mimetypes, module(), function()}
| {mimetypes, binary() | {binary(), binary(), [{binary(), binary()}]}}.
@ -322,6 +324,22 @@ content_types_provided(Req, State={Path, _, Extra}) ->
{[{Type, get_file}], Req, State}
end.
%% Detect the charset of the file.
-spec charsets_provided(Req, State)
-> {[binary()], Req, State}
when State::state().
charsets_provided(Req, State={Path, _, Extra}) ->
case lists:keyfind(charset, 1, Extra) of
%% We simulate the callback not being exported.
false ->
no_call;
{charset, Module, Function} ->
{[Module:Function(Path)], Req, State};
{charset, Charset} ->
{[Charset], Req, State}
end.
%% Assume the resource doesn't exist if it's not a regular file.
-spec resource_exists(Req, State)