Chapril/xmpp.chapril.org-ejabberd
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Add auth to mod_http_fileserver

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This commit is contained in:
Paweł Chmielowski 2016-11-17 12:59:27 +01:00
parent 1c90b19d74
commit 995c97671d
1 changed files with 62 additions and 26 deletions
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88
src/mod_http_fileserver.erl
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@ -56,7 +56,7 @@
-record(state,
{host, docroot, accesslog, accesslogfd,
directory_indices, custom_headers, default_content_type,
content_types = []}).
content_types = [], user_access = none}).
-define(PROCNAME, ejabberd_mod_http_fileserver).
@ -133,7 +133,8 @@ start_link(Host, Opts) ->
init([Host, Opts]) ->
try initialize(Host, Opts) of
{DocRoot, AccessLog, AccessLogFD, DirectoryIndices,
CustomHeaders, DefaultContentType, ContentTypes} ->
CustomHeaders, DefaultContentType, ContentTypes,
UserAccess} ->
{ok, #state{host = Host,
accesslog = AccessLog,
accesslogfd = AccessLogFD,
@ -141,7 +142,8 @@ init([Host, Opts]) ->
directory_indices = DirectoryIndices,
custom_headers = CustomHeaders,
default_content_type = DefaultContentType,
content_types = ContentTypes}}
content_types = ContentTypes,
user_access = UserAccess}}
catch
throw:Reason ->
{stop, Reason}
@ -165,7 +167,15 @@ initialize(Host, Opts) ->
[]),
DefaultContentType = gen_mod:get_opt(default_content_type, Opts,
fun iolist_to_binary/1,
?DEFAULT_CONTENT_TYPE),
?DEFAULT_CONTENT_TYPE),
UserAccess0 = gen_mod:get_opt(must_authenticate_with, Opts,
mod_opt_type(must_authenticate_with),
[]),
UserAccess = case UserAccess0 of
[] -> none;
_ ->
dict:from_list(UserAccess0)
end,
ContentTypes = build_list_content_types(
gen_mod:get_opt(content_types, Opts,
fun(L) when is_list(L) ->
@ -180,7 +190,7 @@ initialize(Host, Opts) ->
[str:join([[$*, K, " -> ", V] || {K, V} <- ContentTypes],
<<", ">>)]),
{DocRoot, AccessLog, AccessLogFD, DirectoryIndices,
CustomHeaders, DefaultContentType, ContentTypes}.
CustomHeaders, DefaultContentType, ContentTypes, UserAccess}.
%% @spec (AdminCTs::[CT], Default::[CT]) -> [CT]
@ -246,10 +256,11 @@ try_open_log(FN, Host) ->
%% {stop, Reason, State}
%% Description: Handling call messages
%%--------------------------------------------------------------------
handle_call({serve, LocalPath}, _From, State) ->
Reply = serve(LocalPath, State#state.docroot, State#state.directory_indices,
handle_call({serve, LocalPath, Auth}, _From, State) ->
Reply = serve(LocalPath, Auth, State#state.docroot, State#state.directory_indices,
State#state.custom_headers,
State#state.default_content_type, State#state.content_types),
State#state.default_content_type, State#state.content_types,
State#state.user_access),
{reply, Reply, State};
handle_call(_Request, _From, State) ->
{reply, ok, State}.
@ -305,9 +316,9 @@ code_change(_OldVsn, State, _Extra) ->
%% @doc Handle an HTTP request.
%% LocalPath is the part of the requested URL path that is "local to the module".
%% Returns the page to be sent back to the client and/or HTTP status code.
process(LocalPath, Request) ->
process(LocalPath, #request{host = Host, auth = Auth} = Request) ->
?DEBUG("Requested ~p", [LocalPath]),
try gen_server:call(get_proc_name(Request#request.host), {serve, LocalPath}) of
try gen_server:call(get_proc_name(Host), {serve, LocalPath, Auth}) of
{FileSize, Code, Headers, Contents} ->
add_to_log(FileSize, Code, Request),
{Code, Headers, Contents}
@ -318,21 +329,38 @@ process(LocalPath, Request) ->
ejabberd_web:error(not_found)
end.
serve(LocalPath, DocRoot, DirectoryIndices, CustomHeaders, DefaultContentType, ContentTypes) ->
FileName = filename:join(filename:split(DocRoot) ++ LocalPath),
case file:read_file_info(FileName) of
{error, enoent} -> ?HTTP_ERR_FILE_NOT_FOUND;
{error, enotdir} -> ?HTTP_ERR_FILE_NOT_FOUND;
{error, eacces} -> ?HTTP_ERR_FORBIDDEN;
{ok, #file_info{type = directory}} -> serve_index(FileName,
DirectoryIndices,
CustomHeaders,
DefaultContentType,
ContentTypes);
{ok, FileInfo} -> serve_file(FileInfo, FileName,
CustomHeaders,
DefaultContentType,
ContentTypes)
serve(LocalPath, Auth, DocRoot, DirectoryIndices, CustomHeaders, DefaultContentType,
ContentTypes, UserAccess) ->
CanProceed = case {UserAccess, Auth} of
{none, _} -> true;
{_, {User, Pass}} ->
case dict:find(User, UserAccess) of
{ok, Pass} -> true;
_ -> false
end;
_ ->
false
end,
case CanProceed of
true ->
FileName = filename:join(filename:split(DocRoot) ++ LocalPath),
case file:read_file_info(FileName) of
{error, enoent} -> ?HTTP_ERR_FILE_NOT_FOUND;
{error, enotdir} -> ?HTTP_ERR_FILE_NOT_FOUND;
{error, eacces} -> ?HTTP_ERR_FORBIDDEN;
{ok, #file_info{type = directory}} -> serve_index(FileName,
DirectoryIndices,
CustomHeaders,
DefaultContentType,
ContentTypes);
{ok, FileInfo} -> serve_file(FileInfo, FileName,
CustomHeaders,
DefaultContentType,
ContentTypes)
end;
_ ->
?HTTP_ERR_FORBIDDEN
end.
%% Troll through the directory indices attempting to find one which
@ -466,6 +494,14 @@ mod_opt_type(default_content_type) ->
mod_opt_type(directory_indices) ->
fun (L) when is_list(L) -> L end;
mod_opt_type(docroot) -> fun (A) -> A end;
mod_opt_type(must_authenticate_with) ->
fun (L) when is_list(L) ->
lists:map(fun(UP) when is_binary(UP) ->
[K, V] = binary:split(UP, <<":">>),
{K, V}
end, L)
end;
mod_opt_type(_) ->
[accesslog, content_types, custom_headers,
default_content_type, directory_indices, docroot].
default_content_type, directory_indices, docroot,
must_authenticate_with].