From 6959bd9cd0701286a42f53c4b4f734df92f1c8a8 Mon Sep 17 00:00:00 2001
From: Brendon Hogger <brendonh@gmail.com>
Date: Thu, 23 Jul 2009 04:02:04 +0000
Subject: [PATCH] Login stuff from, uh, before

git-svn-id: http://dev.brendonh.org/svn/evo/trunk@71 b2fba486-9eff-4e6f-b9e8-fc05d33d65a9
---
 evo/src/evo.erl        |  3 ++-
 evo/src/evosession.erl | 59 ++++++++++++++++++++++++------------------
 evo/src/evotest.erl    |  6 ++---
 3 files changed, 39 insertions(+), 29 deletions(-)

diff --git a/evo/src/evo.erl b/evo/src/evo.erl
index ff9832b..e8e9411 100644
--- a/evo/src/evo.erl
+++ b/evo/src/evo.erl
@@ -248,7 +248,8 @@ emitTag(#templateState{tag={e,slot}}=State) ->
             Data;
         Keys ->
             lists:foldl(
-              fun(E, A) -> proplists:get_value(list_to_atom(E), A) end,
+              fun ("_top", _) -> get_cache(0);
+                  (E, A) -> proplists:get_value(list_to_atom(E), A) end,
               Data, string:tokens(Keys, "."))
     end,
     emitTag(evorender:format(State, Final));
diff --git a/evo/src/evosession.erl b/evo/src/evosession.erl
index a42836c..823bfc9 100644
--- a/evo/src/evosession.erl
+++ b/evo/src/evosession.erl
@@ -13,8 +13,9 @@
 -export([respond/5, nav/2]).
 
 %% API
--export([save_session/1, user_info/1, get_user/2]).
+-export([save_session/1, user_info/1, get_user/2, login/3]).
 
+-define(Q(S), lists:concat(['"', S, '"'])).
 
 
 %%%-------------------------------------------------------------------
@@ -36,6 +37,32 @@ save_session(Conf) ->
 nav(_Conf, _Args) -> [].
 
 
+
+login(Username, GivenPass, Conf) ->
+    {CouchDB, DB} = ?GV(couchdb, Conf),
+    {json, Users} = erlang_couchdb:invoke_view(CouchDB, DB, "users", "byUsername", 
+                                               [{include_docs, true}, {key, ?Q(Username)}]),
+    {Valid, User} = case erlang_couchdb:get_value([<<"rows">>, <<"doc">>], Users) of
+                        [] -> {false, none};
+                        [{struct, U}] -> check_creds(U, GivenPass)
+                    end,
+    
+    case Valid of
+        true ->
+            {Key, OldSession} = ?GV(session, Conf),
+            UserID = ?GV(<<"_id">>, User),
+            NewSession = [{<<"userID">>, UserID},
+                          {userInfo, get_user(UserID, Conf)}
+                          |OldSession],
+            NewConf = [{session, {Key, NewSession}}|Conf],
+            save_session(NewConf),
+            {ok, NewConf};
+        false ->
+            {error, invalid}
+    end.
+
+
+
 %%%-------------------------------------------------------------------
 %%% Login / logout Evo pages
 %%%-------------------------------------------------------------------
@@ -44,8 +71,6 @@ nav(_Conf, _Args) -> [].
         gen_server:call(?CONFNAME(Conf, "evotemplate"),
                         {C,T,D,Cf,State#state.templateCallback})).
 
--define(Q(S), lists:concat(['"', S, '"'])).
-
 
 template(login) -> {file, "templates/auto/login.html"};
 template(loggedin) -> {file, "templates/auto/loggedin.html"}.
@@ -70,29 +95,13 @@ respond(Req, 'GET', [], Conf, _Args) ->
 respond(Req, 'POST', [], Conf, Args) ->
     case user_info(Conf) of
         [] ->
-            {CouchDB, DB} = ?GV(couchdb, Conf),
             Creds = mochiweb_multipart:parse_form(Req),
             Username = ?GV("username", Creds),
+            GivenPass = ?GV("password", Creds),
 
-            {json, Users} = erlang_couchdb:invoke_view(CouchDB, DB, "users", "byUsername", 
-                                                       [{include_docs, true}, {key, ?Q(Username)}]),
-            {Valid, User} = case erlang_couchdb:get_value([<<"rows">>, <<"doc">>], Users) of
-                                [] -> {false, none};
-                                [{struct, U}] -> check_creds(U, Creds)
-                            end,
-    
-            case Valid of
-                true ->
-                    {Key, OldSession} = ?GV(session, Conf),
-                    UserID = ?GV(<<"_id">>, User),
-                    NewSession = [{<<"userID">>, UserID},
-                                  {userInfo, get_user(UserID, Conf)}
-                                  |OldSession],
-                    NewConf = [{session, {Key, NewSession}}|Conf],
-                    save_session(NewConf),
-                    redirect(Req, NewConf);
-                false ->
-                    respond(Req, 'GET', [], [{error, "Invalid credentials"}|Conf], Args)
+            case login(Username, GivenPass, Conf) of
+                {ok, NewConf} -> redirect(Req, NewConf);
+                {error, _} -> respond(Req, 'GET', [], [{error, "Invalid credentials"}|Conf], Args)
             end;
         _ -> redirect(Req, Conf)
     end;
@@ -130,9 +139,8 @@ respond(Req, _, _, _Conf, _Args) ->
     {response, Req:not_found()}.
 
    
-check_creds(User, Creds) ->
+check_creds(User, GivenPass) ->
     {struct, UNPW} = ?GV(<<"unpw">>, User),
-    GivenPass = ?GV("password", Creds),
     RealPass = ?GV(<<"password">>, UNPW),
     HashFunc = hashfunc(?GVD(<<"hash">>, UNPW, <<"plaintext">>)),
     case list_to_binary(HashFunc(GivenPass)) == RealPass of
@@ -166,6 +174,7 @@ session_from_cookie(_Req, Conf, "/static/" ++ _) ->
     {update, Conf};
 session_from_cookie(Req, Conf, _) ->
     CookieName = lists:concat(["evo_session_", ?SITENAME(Conf)]),
+
     {Key, DBSession} = case Req:get_cookie_value(CookieName) of
                            undefined -> create_session(Conf);
                            Existing -> retrieve_session(Existing, Conf)
diff --git a/evo/src/evotest.erl b/evo/src/evotest.erl
index 0ee1c6f..92eb6d4 100644
--- a/evo/src/evotest.erl
+++ b/evo/src/evotest.erl
@@ -29,7 +29,7 @@ test() ->
 
     %% Basics
 
-    T("EmptyTop", '<div />', [], '<div />'),
+    T("EmptyTop", '<div />', [], '<div>\n</div>'),
     T("TextTop", '<div>Hi</div>', [], '<div>Hi</div>'),
     T("PrefixSpace", '<div> Hi</div>', [], '<div> Hi</div>'),
     T("SuffixSpace", '<div>Hi </div>', [], '<div>Hi </div>'),
@@ -91,7 +91,7 @@ test() ->
       '<div e:render="foreach"><div e:render="foreach"><e:slot /></div></div>', 
       [[1,2,3], [4,5,6]], 
       '<div><div>123</div><div>456</div></div>'),
-    T("ForeachRowIndex", '<div e:render="foreach"><e:slot e:dataExp="{R,D}" /></div>', [a,b,c,d], '<div>{0,a}{1,b}{2,c}{3,d}</div>'),
+    T("ForeachRowIndex", '<div e:render="foreach"><e:slot e:dataExp="{Row,D}" /></div>', [a,b,c,d], '<div>{0,a}{1,b}{2,c}{3,d}</div>'),
     T("ForeachOddEven", '<div e:render="foreach"><e:slot e:dataExp="OddEven" />,</div>', [a,b,c,d], '<div>odd,even,odd,even,</div>'),
     F("ForeachClass", '<ul e:render="foreach"><li><e:attr name="class" e:render="data" e:dataExp="OddEven" /><e:slot /></li></ul>', 
       [a,b,c,d], '<ul><li class="odd">a</li><li class="even">b</li><li class="odd">c</li><li class="even">d</li></ul>'),
@@ -139,7 +139,7 @@ test() ->
 
 run_template(Template, Data, Name, Output) ->
     Self = self(),
-    Template ! {run, Data, [{pretty, false}], Self},
+    Template ! {run, Data, [{pretty, raw}], Self},
 
     receive
         {Template, result, R} ->