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* src/ejabberd_auth.erl: If anonymous auth is enabled, when

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checking if the account already exists in other auth methods, take
into account if the auth method failed (EJAB-882)
* src/ejabberd_auth_anonymous.erl: Likewise
* src/ejabberd_auth_external.erl: Likewise
* src/ejabberd_auth_internal.erl: Likewise
* src/ejabberd_auth_ldap.erl: Likewise
* src/ejabberd_auth_odbc.erl: Likewise
* src/ejabberd_auth_pam.erl: Likewise

SVN Revision: 1966
This commit is contained in:
Badlop 2009-03-04 18:34:02 +00:00
parent b3c39d120f
commit ea715129e9
8 changed files with 102 additions and 45 deletions
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12
ChangeLog
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@ -1,3 +1,15 @@
2009-03-04 Badlop <badlop@process-one.net>
* src/ejabberd_auth.erl: If anonymous auth is enabled, when
checking if the account already exists in other auth methods, take
into account if the auth method failed (EJAB-882)
* src/ejabberd_auth_anonymous.erl: Likewise
* src/ejabberd_auth_external.erl: Likewise
* src/ejabberd_auth_internal.erl: Likewise
* src/ejabberd_auth_ldap.erl: Likewise
* src/ejabberd_auth_odbc.erl: Likewise
* src/ejabberd_auth_pam.erl: Likewise
2009-03-04 Christophe Romain <christophe.romain@process-one.net>
* src/mod_pubsub/mod_pubsub.erl: Allow node creation without configure

70
src/ejabberd_auth.erl
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@ -78,20 +78,21 @@ plain_password_required(Server) ->
%% @spec (User::string(), Server::string(), Password::string()) ->
%% true | false
check_password(User, Server, Password) ->
lists:any(
fun(M) ->
M:check_password(User, Server, Password)
end, auth_modules(Server)).
case check_password_with_authmodule(User, Server, Password) of
{true, _AuthModule} -> true;
false -> false
end.
%% @doc Check if the user and password can login in server.
%% @spec (User::string(), Server::string(), Password::string(),
%% StreamID::string(), Digest::string()) ->
%% true | false
check_password(User, Server, Password, StreamID, Digest) ->
lists:any(
fun(M) ->
M:check_password(User, Server, Password, StreamID, Digest)
end, auth_modules(Server)).
case check_password_with_authmodule(User, Server, Password,
StreamID, Digest) of
{true, _AuthModule} -> true;
false -> false
end.
%% @doc Check if the user and password can login in server.
%% The user can login if at least an authentication method accepts the user
@ -104,27 +105,23 @@ check_password(User, Server, Password, StreamID, Digest) ->
%% | ejabberd_auth_internal | ejabberd_auth_ldap
%% | ejabberd_auth_odbc | ejabberd_auth_pam
check_password_with_authmodule(User, Server, Password) ->
Res = lists:dropwhile(
fun(M) ->
not apply(M, check_password,
[User, Server, Password])
end, auth_modules(Server)),
case Res of
[] -> false;
[AuthMod | _] -> {true, AuthMod}
end.
check_password_loop(auth_modules(Server), [User, Server, Password]).
check_password_with_authmodule(User, Server, Password, StreamID, Digest) ->
Res = lists:dropwhile(
fun(M) ->
not apply(M, check_password,
[User, Server, Password, StreamID, Digest])
end, auth_modules(Server)),
case Res of
[] -> false;
[AuthMod | _] -> {true, AuthMod}
check_password_loop(auth_modules(Server), [User, Server, Password,
StreamID, Digest]).
check_password_loop([], _Args) ->
false;
check_password_loop([AuthModule | AuthModules], Args) ->
case apply(AuthModule, check_password, Args) of
true ->
{true, AuthModule};
false ->
check_password_loop(AuthModules, Args)
end.
%% @spec (User::string(), Server::string(), Password::string()) ->
%% ok | {error, ErrorType}
%% where ErrorType = empty_password | not_allowed | invalid_jid
@ -259,11 +256,26 @@ is_user_exists(User, Server) ->
%% Check if the user exists in all authentications module except the module
%% passed as parameter
%% @spec (Module::atom(), User, Server) -> true | false | maybe
is_user_exists_in_other_modules(Module, User, Server) ->
lists:any(
fun(M) ->
M:is_user_exists(User, Server)
end, auth_modules(Server)--[Module]).
is_user_exists_in_other_modules_loop(
auth_modules(Server)--[Module],
User, Server).
is_user_exists_in_other_modules_loop([], _User, _Server) ->
false;
is_user_exists_in_other_modules_loop([AuthModule|AuthModules], User, Server) ->
case AuthModule:is_user_exists(User, Server) of
true ->
true;
false ->
is_user_exists_in_other_modules_loop(AuthModules, User, Server);
{error, Error} ->
?DEBUG("The authentication module ~p returned an error~nwhen "
"checking user ~p in server ~p~nError message: ~p",
[AuthModule, User, Server, Error]),
maybe
end.
%% @spec (User, Server) -> ok | error | {error, not_allowed}
%% @doc Remove user.

3
src/ejabberd_auth_anonymous.erl
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@ -178,7 +178,10 @@ check_password(User, Server, _Password, _StreamID, _Digest) ->
%% they however are "reserved")
case ejabberd_auth:is_user_exists_in_other_modules(?MODULE,
User, Server) of
%% If user exists in other module, reject anonnymous authentication
true -> false;
%% If we are not sure whether the user exists in other module, reject anon auth
maybe -> false;
false -> login(User, Server)
end.

7
src/ejabberd_auth_external.erl
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@ -83,8 +83,13 @@ get_password(_User, _Server) ->
get_password_s(_User, _Server) ->
"".
%% @spec (User, Server) -> true | false | {error, Error}
is_user_exists(User, Server) ->
extauth:is_user_exists(User, Server).
try extauth:is_user_exists(User, Server) of
Res -> Res
catch
_:Error -> {error, Error}
end.
remove_user(_User, _Server) ->
{error, not_allowed}.

5
src/ejabberd_auth_internal.erl
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@ -225,6 +225,7 @@ get_password_s(User, Server) ->
[]
end.
%% @spec (User, Server) -> true | false | {error, Error}
is_user_exists(User, Server) ->
LUser = jlib:nodeprep(User),
LServer = jlib:nameprep(Server),
@ -234,8 +235,8 @@ is_user_exists(User, Server) ->
false;
[_] ->
true;
_ ->
false
Other ->
{error, Other}
end.
%% @spec (User, Server) -> ok

5
src/ejabberd_auth_ldap.erl
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@ -179,10 +179,11 @@ get_password(_User, _Server) ->
get_password_s(_User, _Server) ->
"".
%% @spec (User, Server) -> true | false | {error, Error}
is_user_exists(User, Server) ->
case catch is_user_exists_ldap(User, Server) of
{'EXIT', _} ->
false;
{'EXIT', Error} ->
{error, Error};
Result ->
Result
end.

43
src/ejabberd_auth_odbc.erl
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@ -57,6 +57,7 @@ start(_Host) ->
plain_password_required() ->
false.
%% @spec (User, Server, Password) -> true | false | {error, Error}
check_password(User, Server, Password) ->
case jlib:nodeprep(User) of
error ->
@ -64,14 +65,22 @@ check_password(User, Server, Password) ->
LUser ->
Username = ejabberd_odbc:escape(LUser),
LServer = jlib:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
try odbc_queries:get_password(LServer, Username) of
{selected, ["password"], [{Password}]} ->
Password /= "";
_ ->
false
Password /= ""; %% Password is correct, and not empty
{selected, ["password"], [{_Password2}]} ->
false; %% Password is not correct
{selected, ["password"], []} ->
false; %% Account does not exist
{error, _Error} ->
false %% Typical error is that table doesn't exist
catch
_:_ ->
false %% Typical error is database not accessible
end
end.
%% @spec (User, Server, Password, StreamID, Digest) -> true | false | {error, Error}
check_password(User, Server, Password, StreamID, Digest) ->
case jlib:nodeprep(User) of
error ->
@ -79,7 +88,8 @@ check_password(User, Server, Password, StreamID, Digest) ->
LUser ->
Username = ejabberd_odbc:escape(LUser),
LServer = jlib:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
try odbc_queries:get_password(LServer, Username) of
%% Account exists, check if password is valid
{selected, ["password"], [{Passwd}]} ->
DigRes = if
Digest /= "" ->
@ -92,8 +102,13 @@ check_password(User, Server, Password, StreamID, Digest) ->
true ->
(Passwd == Password) and (Password /= "")
end;
_ ->
false
{selected, ["password"], []} ->
false; %% Account does not exist
{error, _Error} ->
false %% Typical error is that table doesn't exist
catch
_:_ ->
false %% Typical error is database not accessible
end
end.
@ -204,6 +219,7 @@ get_password_s(User, Server) ->
end
end.
%% @spec (User, Server) -> true | false | {error, Error}
is_user_exists(User, Server) ->
case jlib:nodeprep(User) of
error ->
@ -211,11 +227,16 @@ is_user_exists(User, Server) ->
LUser ->
Username = ejabberd_odbc:escape(LUser),
LServer = jlib:nameprep(Server),
case catch odbc_queries:get_password(LServer, Username) of
try odbc_queries:get_password(LServer, Username) of
{selected, ["password"], [{_Password}]} ->
true;
_ ->
false
true; %% Account exists
{selected, ["password"], []} ->
false; %% Account does not exist
{error, Error} ->
{error, Error} %% Typical error is that table doesn't exist
catch
_:B ->
{error, B} %% Typical error is database not accessible
end
end.

2
src/ejabberd_auth_pam.erl
View File

@ -80,6 +80,8 @@ get_password(_User, _Server) ->
get_password_s(_User, _Server) ->
"".
%% @spec (User, Server) -> true | false | {error, Error}
%% TODO: Improve this function to return an error instead of 'false' when connection to PAM failed
is_user_exists(User, Host) ->
Service = get_pam_service(Host),
case catch epam:acct_mgmt(Service, User) of