%% ``Licensed under the Apache License, Version 2.0 (the "License");
%% you may not use this file except in compliance with the License.
%% You may obtain a copy of the License at
%%
%% http://www.apache.org/licenses/LICENSE-2.0
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% The Initial Developer of the Original Code is Ericsson Utvecklings AB.
%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
%% AB. All Rights Reserved.''
%%
%% $Id: mod_auth_mnesia.erl,v 1.2 2010/03/04 13:54:19 maria Exp $
%%
-module(mod_auth_mnesia).
-export([get_user/2,
list_group_members/2,
add_user/2,
add_group_member/3,
list_users/1,
delete_user/2,
list_groups/1,
delete_group_member/3,
delete_group/2]).
-export([store_user/5, store_user/6,
store_group_member/5, store_group_member/6,
list_group_members/3, list_group_members/4,
list_groups/2, list_groups/3,
list_users/2, list_users/3,
remove_user/4, remove_user/5,
remove_group_member/5, remove_group_member/6,
remove_group/4, remove_group/5]).
-export([store_directory_data/2]).
-include("httpd.hrl").
-include("mod_auth.hrl").
store_directory_data(Directory, DirData) ->
%% We don't need to do anything here, we could ofcourse check that the appropriate
%% mnesia tables has been created prior to starting the http server.
ok.
%%
%% API
%%
%% Compatibility API
store_user(UserName, Password, Port, Dir, AccessPassword) ->
%% AccessPassword is ignored - was not used in previous version
DirData = [{path,Dir},{port,Port}],
UStruct = #httpd_user{username = UserName,
password = Password},
add_user(DirData, UStruct).
store_user(UserName, Password, Addr, Port, Dir, AccessPassword) ->
%% AccessPassword is ignored - was not used in previous version
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
UStruct = #httpd_user{username = UserName,
password = Password},
add_user(DirData, UStruct).
store_group_member(GroupName, UserName, Port, Dir, AccessPassword) ->
DirData = [{path,Dir},{port,Port}],
add_group_member(DirData, GroupName, UserName).
store_group_member(GroupName, UserName, Addr, Port, Dir, AccessPassword) ->
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
add_group_member(DirData, GroupName, UserName).
list_group_members(GroupName, Port, Dir) ->
DirData = [{path,Dir},{port,Port}],
list_group_members(DirData, GroupName).
list_group_members(GroupName, Addr, Port, Dir) ->
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
list_group_members(DirData, GroupName).
list_groups(Port, Dir) ->
DirData = [{path,Dir},{port,Port}],
list_groups(DirData).
list_groups(Addr, Port, Dir) ->
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
list_groups(DirData).
list_users(Port, Dir) ->
DirData = [{path,Dir},{port,Port}],
list_users(DirData).
list_users(Addr, Port, Dir) ->
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
list_users(DirData).
remove_user(UserName, Port, Dir, _AccessPassword) ->
DirData = [{path,Dir},{port,Port}],
delete_user(DirData, UserName).
remove_user(UserName, Addr, Port, Dir, _AccessPassword) ->
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
delete_user(DirData, UserName).
remove_group_member(GroupName,UserName,Port,Dir,_AccessPassword) ->
DirData = [{path,Dir},{port,Port}],
delete_group_member(DirData, GroupName, UserName).
remove_group_member(GroupName,UserName,Addr,Port,Dir,_AccessPassword) ->
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
delete_group_member(DirData, GroupName, UserName).
remove_group(GroupName,Port,Dir,_AccessPassword) ->
DirData = [{path,Dir},{port,Port}],
delete_group(DirData, GroupName).
remove_group(GroupName,Addr,Port,Dir,_AccessPassword) ->
DirData = [{path,Dir},{bind_address,Addr},{port,Port}],
delete_group(DirData, GroupName).
%%
%% Storage format of users in the mnesia table:
%% httpd_user records
%%
add_user(DirData, UStruct) ->
{Addr, Port, Dir} = lookup_common(DirData),
UserName = UStruct#httpd_user.username,
Password = UStruct#httpd_user.password,
Data = UStruct#httpd_user.user_data,
User=#httpd_user{username={UserName,Addr,Port,Dir},
password=Password,
user_data=Data},
case mnesia:transaction(fun() -> mnesia:write(User) end) of
{aborted,Reason} ->
{error,Reason};
_ ->
true
end.
get_user(DirData, UserName) ->
{Addr, Port, Dir} = lookup_common(DirData),
case mnesia:transaction(fun() ->
mnesia:read({httpd_user,
{UserName,Addr,Port,Dir}})
end) of
{aborted,Reason} ->
{error, Reason};
{'atomic',[]} ->
{error, no_such_user};
{'atomic', [Record]} when record(Record, httpd_user) ->
{ok, Record#httpd_user{username=UserName}};
Other ->
{error, no_such_user}
end.
list_users(DirData) ->
{Addr, Port, Dir} = lookup_common(DirData),
case mnesia:transaction(fun() ->
mnesia:match_object({httpd_user,
{'_',Addr,Port,Dir},'_','_'})
end) of
{aborted,Reason} ->
{error,Reason};
{'atomic',Users} ->
{ok,
lists:foldr(fun({httpd_user, {UserName, AnyAddr, AnyPort, AnyDir},
Password, Data}, Acc) ->
[UserName|Acc]
end,
[], Users)}
end.
delete_user(DirData, UserName) ->
{Addr, Port, Dir} = lookup_common(DirData),
case mnesia:transaction(fun() ->
mnesia:delete({httpd_user,
{UserName,Addr,Port,Dir}})
end) of
{aborted,Reason} ->
{error,Reason};
_ ->
true
end.
%%
%% Storage of groups in the mnesia table:
%% Multiple instances of {#httpd_group, User}
%%
add_group_member(DirData, GroupName, User) ->
{Addr, Port, Dir} = lookup_common(DirData),
Group=#httpd_group{name={GroupName, Addr, Port, Dir}, userlist=User},
case mnesia:transaction(fun() -> mnesia:write(Group) end) of
{aborted,Reason} ->
{error,Reason};
_ ->
true
end.
list_group_members(DirData, GroupName) ->
{Addr, Port, Dir} = lookup_common(DirData),
case mnesia:transaction(fun() ->
mnesia:read({httpd_group,
{GroupName,Addr,Port,Dir}})
end) of
{aborted, Reason} ->
{error,Reason};
{'atomic', Members} ->
{ok,[UserName || {httpd_group,{AnyGroupName,AnyAddr,AnyPort,AnyDir},UserName} <- Members,
AnyGroupName == GroupName, AnyAddr == Addr,
AnyPort == Port, AnyDir == Dir]}
end.
list_groups(DirData) ->
{Addr, Port, Dir} = lookup_common(DirData),
case mnesia:transaction(fun() ->
mnesia:match_object({httpd_group,
{'_',Addr,Port,Dir},'_'})
end) of
{aborted, Reason} ->
{error, Reason};
{'atomic', Groups} ->
GroupNames=
[GroupName || {httpd_group,{GroupName,AnyAddr,AnyPort,AnyDir}, UserName} <- Groups,
AnyAddr == Addr, AnyPort == AnyPort, AnyDir == Dir],
{ok, httpd_util:uniq(lists:sort(GroupNames))}
end.
delete_group_member(DirData, GroupName, UserName) ->
{Addr, Port, Dir} = lookup_common(DirData),
Group = #httpd_group{name={GroupName, Addr, Port, Dir}, userlist=UserName},
case mnesia:transaction(fun() -> mnesia:delete_object(Group) end) of
{aborted,Reason} ->
{error,Reason};
_ ->
true
end.
%% THIS IS WRONG (?) !
%% Should first match out all httpd_group records for this group and then
%% do mnesia:delete on those. Or ?
delete_group(DirData, GroupName) ->
{Addr, Port, Dir} = lookup_common(DirData),
case mnesia:transaction(fun() ->
mnesia:delete({httpd_group,
{GroupName,Addr,Port,Dir}})
end) of
{aborted,Reason} ->
{error,Reason};
_ ->
true
end.
%% Utility functions.
lookup_common(DirData) ->
Dir = httpd_util:key1search(DirData, path),
Port = httpd_util:key1search(DirData, port),
Addr = httpd_util:key1search(DirData, bind_address),
{Addr, Port, Dir}.
