* src/mod_roster.erl: The subscribe request are now resend at

login as long as they have not been answered. mod_roster do no more
depends on mod_offline.
* src/ejabberd_sm.erl: Likewise.
* src/ejabberd_c2s.erl: Likewise.
* src/mod_roster_odbc.erl: Likewise (The ODBC/relational support
has not yet been tested).
* src/mod_roster.hrl: Likewise.
* src/mod_offline.erl: Likewise.
* src/mod_offline_odbc.erl: Likewise.
* odbc/pg.sql: Likewise.
* odbc/mysql.sql: Likewise.

SVN Revision: 569

ChangeLog

@@ -1,3 +1,18 @@
+2006-05-23  Mickael Remond  <mickael.remond@process-one.net>
+
+	* src/mod_roster.erl: The subscribe request are now resend at login as
+	long as they have not been answered. mod_roster do no more depends on
+        mod_offline.
+	* src/ejabberd_sm.erl: Likewise.
+	* src/ejabberd_c2s.erl: Likewise.
+	* src/mod_roster_odbc.erl: Likewise (The ODBC/relational support has
+	not yet been tested).
+	* src/mod_roster.hrl: Likewise.
+	* src/mod_offline.erl: Likewise.
+	* src/mod_offline_odbc.erl: Likewise.
+	* odbc/pg.sql: Likewise.
+	* odbc/mysql.sql: Likewise.
+
 2006-05-22  Mickael Remond  <mickael.remond@process-one.net>
 	
 	* src/ejabberd_sm.erl: The max_user_sessions has been moved to

src/ejabberd_c2s.erl

@@ -1364,6 +1364,7 @@ presence_update(From, Packet, StateData) ->
 					   StateData#state.server,
 					   [StateData#state.jid]),
 			resend_offline_messages(StateData),
+			resend_subscription_requests(StateData),
 			presence_broadcast_first(
 			  From, StateData#state{pres_last = Packet,
 						pres_invis = false
@@ -1727,6 +1728,19 @@ resend_offline_messages(#state{user = User,
 	      end, Rs)
     end.
 
+resend_subscription_requests(#state{user = User,
+				    server = Server} = StateData) ->
+    PendingSubscriptions = ejabberd_hooks:run_fold(
+			     resend_subscription_requests_hook,
+			     Server,
+			     [],
+			     [User, Server]),
+    lists:foreach(fun(XMLPacket) ->
+			  send_element(StateData,
+				       XMLPacket)
+		  end,
+		  PendingSubscriptions).
+
 get_showtag(undefined) ->
     "unavailable";
 get_showtag(Presence) ->

src/ejabberd_sm.erl

@@ -306,32 +306,34 @@ do_route(From, To, Packet) ->
 		    {Pass, Subsc} =
 			case xml:get_attr_s("type", Attrs) of
 			    "subscribe" ->
+				Reason = xml:get_tag_cdata(
+					   xml:get_subtag(Packet, "status")),
 				{ejabberd_hooks:run_fold(
 				   roster_in_subscription,
 				   LServer,
 				   false,
-				   [User, Server, From, subscribe]),
+				   [User, Server, From, subscribe, Reason]),
 				 true};
 			    "subscribed" ->
 				{ejabberd_hooks:run_fold(
 				   roster_in_subscription,
 				   LServer,
 				   false,
-				   [User, Server, From, subscribed]),
+				   [User, Server, From, subscribed, ""]),
 				 true};
 			    "unsubscribe" ->
 				{ejabberd_hooks:run_fold(
 				   roster_in_subscription,
 				   LServer,
 				   false,
-				   [User, Server, From, unsubscribe]),
+				   [User, Server, From, unsubscribe, ""]),
 				 true};
 			    "unsubscribed" ->
 				{ejabberd_hooks:run_fold(
 				   roster_in_subscription,
 				   LServer,
 				   false,
-				   [User, Server, From, unsubscribed]),
+				   [User, Server, From, unsubscribed, ""]),
 				 true};
 			    _ ->
 				{true, false}
@@ -340,39 +342,18 @@ do_route(From, To, Packet) ->
 			    LFrom = jlib:jid_tolower(From),
 			    PResources = get_user_present_resources(
 					   LUser, LServer),
-			    if
+			    lists:foreach(
-				PResources /= [] ->
+			      fun({_, R}) ->
-				    lists:foreach(
+				      if LFrom /=
-				      fun({_, R}) ->
+					 {LUser, LServer, R} ->
-					      if LFrom /=
+					      do_route(
-						 {LUser, LServer, R} ->
+						From,
-						      do_route(
+						jlib:jid_replace_resource(To, R),
-							From,
+						Packet);
-							jlib:jid_replace_resource(To, R),
+					 true ->
-							Packet);
+					      ok
-						 true ->
+				      end
-						      ok
+			      end, PResources);
-					      end
-				      end, PResources);
-				true ->
-				    if
-					Subsc ->
-					    case ejabberd_auth:is_user_exists(
-						   LUser, LServer) of
-						true ->
-						    ejabberd_hooks:run(
-						      offline_subscription_hook,
-						      LServer,
-						      [From, To, Packet]);
-						_ ->
-						    Err = jlib:make_error_reply(
-							    Packet, ?ERR_SERVICE_UNAVAILABLE),
-						    ejabberd_router:route(To, From, Err)
-					    end;
-					true ->
-					    ok
-				    end
-			    end;
 		       true ->
 			    ok
 		    end;

src/mod_offline.erl

@@ -37,8 +37,6 @@ start(Host, _Opts) ->
     update_table(),
     ejabberd_hooks:add(offline_message_hook, Host,
 		       ?MODULE, store_packet, 50),
-    ejabberd_hooks:add(offline_subscription_hook, Host,
-		       ?MODULE, store_packet, 50),
     ejabberd_hooks:add(resend_offline_messages_hook, Host,
 		       ?MODULE, pop_offline_messages, 50),
     ejabberd_hooks:add(remove_user, Host,
@@ -83,8 +81,6 @@ receive_all(Msgs) ->
 stop(Host) ->
     ejabberd_hooks:delete(offline_message_hook, Host,
 			  ?MODULE, store_packet, 50),
-    ejabberd_hooks:delete(offline_subscription_hook, Host,
-			  ?MODULE, store_packet, 50),
     ejabberd_hooks:delete(resend_offline_messages_hook, Host,
 			  ?MODULE, pop_offline_messages, 50),
     ejabberd_hooks:delete(remove_user, Host,

src/mod_offline_odbc.erl

@@ -28,8 +28,6 @@
 start(Host, _Opts) ->
     ejabberd_hooks:add(offline_message_hook, Host,
 		       ?MODULE, store_packet, 50),
-    ejabberd_hooks:add(offline_subscription_hook, Host,
-		       ?MODULE, store_packet, 50),
     ejabberd_hooks:add(resend_offline_messages_hook, Host,
 		       ?MODULE, pop_offline_messages, 50),
     ejabberd_hooks:add(remove_user, Host,
@@ -97,8 +95,6 @@ receive_all(Msgs) ->
 stop(Host) ->
     ejabberd_hooks:delete(offline_message_hook, Host,
 			  ?MODULE, store_packet, 50),
-    ejabberd_hooks:delete(offline_subscription_hook, Host,
-			  ?MODULE, store_packet, 50),
     ejabberd_hooks:delete(resend_offline_messages_hook, Host,
 			  ?MODULE, pop_offline_messages, 50),
     ejabberd_hooks:delete(remove_user, Host,

src/mod_roster.erl

@@ -17,7 +17,8 @@
 	 process_local_iq/3,
 	 get_user_roster/2,
 	 get_subscription_lists/3,
-	 in_subscription/5,
+	 get_in_pending_subscriptions/3,
+	 in_subscription/6,
 	 out_subscription/4,
 	 set_items/3,
 	 remove_user/2,
@@ -46,6 +47,8 @@ start(Host, Opts) ->
 		       ?MODULE, get_jid_info, 50),
     ejabberd_hooks:add(remove_user, Host,
 		       ?MODULE, remove_user, 50),
+    ejabberd_hooks:add(resend_subscription_requests_hook, Host,
+		       ?MODULE, get_in_pending_subscriptions, 50),
     gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_ROSTER,
 				  ?MODULE, process_iq, IQDisc).
 
@@ -62,6 +65,8 @@ stop(Host) ->
 			  ?MODULE, get_jid_info, 50),
     ejabberd_hooks:delete(remove_user, Host,
 			  ?MODULE, remove_user, 50),
+    ejabberd_hooks:delete(resend_subscription_requests_hook, Host,
+		       ?MODULE, get_in_pending_subscriptions, 50),
     gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_ROSTER).
 
 
@@ -130,8 +135,6 @@ get_user_roster(Acc, US) ->
     end.
 
 
-
-
 item_to_xml(Item) ->
     Attrs1 = [{"jid", jlib:jid_to_string(Item#roster.jid)}],
     Attrs2 = case Item#roster.name of
@@ -160,12 +163,11 @@ item_to_xml(Item) ->
 		 _ ->
 		     Attrs3
 	     end,
-    Attrs = Attrs4 ++ Item#roster.xattrs,
     SubEls1 = lists:map(fun(G) ->
 				{xmlelement, "group", [], [{xmlcdata, G}]}
 			end, Item#roster.groups),
     SubEls = SubEls1 ++ Item#roster.xs,
-    {xmlelement, "item", Attrs, SubEls}.
+    {xmlelement, "item", Attrs4, SubEls}.
 
 
 process_iq_set(From, To, #iq{sub_el = SubEl} = IQ) ->
@@ -193,7 +195,6 @@ process_item_set(From, To, {xmlelement, _Name, Attrs, Els}) ->
 				       I#roster{jid = JID,
 						name = "",
 						groups = [],
-						xattrs = [],
 						xs = []}
 			       end,
 			Item1 = process_item_attrs(Item, Attrs),
@@ -274,9 +275,7 @@ process_item_attrs(Item, [{Attr, Val} | Attrs]) ->
 	"ask" ->
 	    process_item_attrs(Item, Attrs);
 	_ ->
-	    XAttrs = Item#roster.xattrs,
+	    process_item_attrs(Item, Attrs)
-	    process_item_attrs(Item#roster{xattrs = [{Attr, Val} | XAttrs]},
-			       Attrs)
     end;
 process_item_attrs(Item, []) ->
     Item.
@@ -374,13 +373,13 @@ ask_to_pending(Ask) -> Ask.
 
 
 
-in_subscription(_, User, Server, JID, Type) ->
+in_subscription(_, User, Server, JID, Type, Reason) ->
-    process_subscription(in, User, Server, JID, Type).
+    process_subscription(in, User, Server, JID, Type, Reason).
 
 out_subscription(User, Server, JID, Type) ->
-    process_subscription(out, User, Server, JID, Type).
+    process_subscription(out, User, Server, JID, Type, []).
 
-process_subscription(Direction, User, Server, JID1, Type) ->
+process_subscription(Direction, User, Server, JID1, Type, Reason) ->
     LUser = jlib:nodeprep(User),
     LServer = jlib:nameprep(Server),
     US = {LUser, LServer},
@@ -415,12 +414,18 @@ process_subscription(Direction, User, Server, JID1, Type) ->
 						  Item#roster.ask,
 						  Type)
 			    end,
+		AskMessage = case NewState of
+				 {_, both} -> Reason;
+				 {_, in}   -> Reason;
+				 {_, _}    -> []
+			     end,
 		case NewState of
 		    none ->
 			{none, AutoReply};
 		    {Subscription, Pending} ->
 			NewItem = Item#roster{subscription = Subscription,
-					      ask = Pending},
+					      ask = Pending,
+					      askmessage = list_to_binary(AskMessage)},
 			mnesia:write(NewItem),
 			{{push, NewItem}, AutoReply}
 		end
@@ -630,13 +635,42 @@ process_item_attrs_ws(Item, [{Attr, Val} | Attrs]) ->
 	"ask" ->
 	    process_item_attrs_ws(Item, Attrs);
 	_ ->
-	    XAttrs = Item#roster.xattrs,
+	    process_item_attrs_ws(Item, Attrs)
-	    process_item_attrs_ws(Item#roster{xattrs = [{Attr, Val} | XAttrs]},
-				  Attrs)
     end;
 process_item_attrs_ws(Item, []) ->
     Item.
 
+get_in_pending_subscriptions(Ls, User, Server) ->
+    JID =  jlib:make_jid(User, Server,""),
+    case mnesia:dirty_index_read(roster, {User,Server}, #roster.us) of
+	Result when list(Result) ->
+    	    Ls ++ lists:map(
+		   fun(R) ->
+			   Message = R#roster.askmessage,
+			   Status  = if is_binary(Message) ->
+					     binary_to_list(Message);
+					true ->
+					     []
+				     end,
+			   {xmlelement, "presence", [{"from", jlib:jid_to_string(R#roster.jid)},
+						     {"to", jlib:jid_to_string(JID)},
+						     {"type", "subscribe"}],
+			    [{xmlelement, "status", [],
+			      [{xmlcdata, Status}]}]}
+		   end,
+		   lists:filter(
+		     fun(R) ->
+			     case R#roster.ask of
+				 in   -> true;
+				 both -> true;
+				 _ -> false
+			     end
+		     end,
+		     Result));
+	_ -> []
+    end.
+		     
+
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
@@ -673,42 +707,54 @@ update_table() ->
 	Fields ->
 	    ok;
 	[uj, user, jid, name, subscription, ask, groups, xattrs, xs] ->
-	    ?INFO_MSG("Converting roster table from "
+	    convert_table1(Fields);
-		      "{uj, user, jid, name, subscription, ask, groups, xattrs, xs} format", []),
+	[usj, us, jid, name, subscription, ask, groups, xattrs, xs] ->
-	    Host = ?MYNAME,
+	    convert_table2(Fields);
-	    {atomic, ok} = mnesia:create_table(
-			     mod_roster_tmp_table,
-			     [{disc_only_copies, [node()]},
-			      {type, bag},
-			      {local_content, true},
-			      {record_name, roster},
-			      {attributes, record_info(fields, roster)}]),
-	    mnesia:del_table_index(roster, user),
-	    mnesia:transform_table(roster, ignore, Fields),
-	    F1 = fun() ->
-			 mnesia:write_lock_table(mod_roster_tmp_table),
-			 mnesia:foldl(
-			   fun(#roster{usj = {U, JID}, us = U} = R, _) ->
-				   mnesia:dirty_write(
-				     mod_roster_tmp_table,
-				     R#roster{usj = {U, Host, JID},
-					      us = {U, Host}})
-			   end, ok, roster)
-		 end,
-	    mnesia:transaction(F1),
-	    mnesia:clear_table(roster),
-	    F2 = fun() ->
-			 mnesia:write_lock_table(roster),
-			 mnesia:foldl(
-			   fun(R, _) ->
-				   mnesia:dirty_write(R)
-			   end, ok, mod_roster_tmp_table)
-		 end,
-	    mnesia:transaction(F2),
-	    mnesia:delete_table(mod_roster_tmp_table);
 	_ ->
 	    ?INFO_MSG("Recreating roster table", []),
 	    mnesia:transform_table(roster, ignore, Fields)
     end.
 
 
+%% Convert roster table to support virtual host
+convert_table1(Fields) ->
+    ?INFO_MSG("Virtual host support: converting roster table from "
+	      "{uj, user, jid, name, subscription, ask, groups, xattrs, xs} format", []),
+    Host = ?MYNAME,
+    {atomic, ok} = mnesia:create_table(
+		     mod_roster_tmp_table,
+		     [{disc_only_copies, [node()]},
+		      {type, bag},
+		      {local_content, true},
+		      {record_name, roster},
+		      {attributes, record_info(fields, roster)}]),
+    mnesia:del_table_index(roster, user),
+    mnesia:transform_table(roster, ignore, Fields),
+    F1 = fun() ->
+		 mnesia:write_lock_table(mod_roster_tmp_table),
+		 mnesia:foldl(
+		   fun(#roster{usj = {U, JID}, us = U} = R, _) ->
+			   mnesia:dirty_write(
+			     mod_roster_tmp_table,
+			     R#roster{usj = {U, Host, JID},
+				      us = {U, Host}})
+		   end, ok, roster)
+	 end,
+    mnesia:transaction(F1),
+    mnesia:clear_table(roster),
+    F2 = fun() ->
+		 mnesia:write_lock_table(roster),
+		 mnesia:foldl(
+		   fun(R, _) ->
+			   mnesia:dirty_write(R)
+		   end, ok, mod_roster_tmp_table)
+	 end,
+    mnesia:transaction(F2),
+    mnesia:delete_table(mod_roster_tmp_table).
+
+
+%% Convert roster table: xattrs fields become 
+convert_table2(Fields) ->
+    ?INFO_MSG("Converting roster table from "
+	      "{usj, us, jid, name, subscription, ask, groups, xattrs, xs} format", []),
+    mnesia:transform_table(roster, ignore, Fields).

src/mod_roster.hrl

@@ -13,6 +13,6 @@
 		 subscription = none,
 		 ask = none,
 		 groups = [],
-		 xattrs = [],
+		 askmessage = [],
 		 xs = []}).
 

src/mod_roster_odbc.erl

@@ -17,7 +17,8 @@
 	 process_local_iq/3,
 	 get_user_roster/2,
 	 get_subscription_lists/3,
-	 in_subscription/5,
+	 get_in_pending_subscriptions/3,
+	 in_subscription/6,
 	 out_subscription/4,
 	 set_items/3,
 	 remove_user/2,
@@ -41,6 +42,8 @@ start(Host, Opts) ->
 		       ?MODULE, get_jid_info, 50),
     ejabberd_hooks:add(remove_user, Host,
 		       ?MODULE, remove_user, 50),
+    ejabberd_hooks:add(resend_subscription_requests_hook, Host,
+		       ?MODULE, get_in_pending_subscriptions, 50),
     gen_iq_handler:add_iq_handler(ejabberd_sm, Host, ?NS_ROSTER,
 				  ?MODULE, process_iq, IQDisc).
 
@@ -57,6 +60,8 @@ stop(Host) ->
 			  ?MODULE, get_jid_info, 50),
     ejabberd_hooks:delete(remove_user, Host,
 			  ?MODULE, remove_user, 50),
+    ejabberd_hooks:delete(resend_subscription_requests_hook, Host,
+		       ?MODULE, get_in_pending_subscriptions, 50),
     gen_iq_handler:remove_iq_handler(ejabberd_sm, Host, ?NS_ROSTER).
 
 
@@ -253,7 +258,8 @@ process_item_set(From, To, {xmlelement, _Name, Attrs, Els}) ->
 				  ["insert into rosterusers("
 				   "              username, jid, nick, "
 				   "              subscription, ask, "
-				   "              server, subscribe, type) "
+				   "              askmessage, server, "
+				   "              subscribe, type) "
 				   " values ", ItemVals, ";"]),
 				ejabberd_odbc:sql_query_t(
 				  ["delete from rostergroups "
@@ -436,13 +442,13 @@ ask_to_pending(Ask) -> Ask.
 
 
 
-in_subscription(_, User, Server, JID, Type) ->
+in_subscription(_, User, Server, JID, Type, Reason) ->
-    process_subscription(in, User, Server, JID, Type).
+    process_subscription(in, User, Server, JID, Type, Reason).
 
 out_subscription(User, Server, JID, Type) ->
-    process_subscription(out, User, Server, JID, Type).
+    process_subscription(out, User, Server, JID, Type, []).
 
-process_subscription(Direction, User, Server, JID1, Type) ->
+process_subscription(Direction, User, Server, JID1, Type, Reason) ->
     LUser = jlib:nodeprep(User),
     LServer = jlib:nameprep(Server),
     LJID = jlib:jid_tolower(JID1),
@@ -497,12 +503,18 @@ process_subscription(Direction, User, Server, JID1, Type) ->
 						  Item#roster.ask,
 						  Type)
 			    end,
+		AskMessage = case NewState of
+				 {_, both} -> Reason;
+				 {_, in}   -> Reason;
+				 {_, _}    -> []
+			     end,
 		case NewState of
 		    none ->
 			{none, AutoReply};
 		    {Subscription, Pending} ->
 			NewItem = Item#roster{subscription = Subscription,
-					      ask = Pending},
+					      ask = Pending,
+					      askmessage = AskMessage},
 			ItemVals = record_to_string(NewItem),
 			ejabberd_odbc:sql_query_t(
 			  ["delete from rosterusers "
@@ -512,7 +524,8 @@ process_subscription(Direction, User, Server, JID1, Type) ->
 			  ["insert into rosterusers("
 			   "              username, jid, nick, "
 			   "              subscription, ask, "
-			   "              server, subscribe, type) "
+			   "              askmessage, server, subscribe, "
+			   "              type) "
 			   " values ", ItemVals, ";"]),
 			{{push, NewItem}, AutoReply}
 		end
@@ -700,7 +713,8 @@ process_item_set_t(LUser, LServer, {xmlelement, _Name, Attrs, Els}) ->
 		     ["insert into rosterusers("
 		      "              username, jid, nick, "
 		      "              subscription, ask, "
-		      "              server, subscribe, type) "
+		      "              askmessage, server, subscribe, "
+		      "              type) "
 		      " values ", ItemVals, ";"],
 		     ["delete from rostergroups "
 		      "      where username='", Username, "' "
@@ -755,6 +769,37 @@ process_item_attrs_ws(Item, []) ->
     Item.
 
 
+get_in_pending_subscriptions(Ls, User, Server) ->
+    JID =  jlib:make_jid(User, Server,""),
+    case mnesia:dirty_index_read(roster, {User,Server}, #roster.us) of
+	Result when list(Result) ->
+    	    Ls ++ lists:map(
+		   fun(R) ->
+			   Message = R#roster.askmessage,
+			   Status  = if is_binary(Message) ->
+					     binary_to_list(Message);
+					true ->
+					     []
+				     end,
+			   {xmlelement, "presence", [{"from", jlib:jid_to_string(R#roster.jid)},
+						     {"to", jlib:jid_to_string(JID)},
+						     {"type", "subscribe"}],
+			    [{xmlelement, "status", [],
+			      [{xmlcdata, Status}]}]}
+		   end,
+		   lists:filter(
+		     fun(R) ->
+			     case R#roster.ask of
+				 in   -> true;
+				 both -> true;
+				 _ -> false
+			     end
+		     end,
+		     Result));
+	_ -> []
+    end.
+		     
+
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 get_jid_info(_, User, Server, JID) ->
@@ -857,7 +902,8 @@ record_to_string(#roster{us = {User, _Server},
 			 jid = JID,
 			 name = Name,
 			 subscription = Subscription,
-			 ask = Ask}) ->
+			 ask = Ask,
+			 askmessage = AskMessage}) ->
     Username = ejabberd_odbc:escape(User),
     SJID = ejabberd_odbc:escape(jlib:jid_to_string(jlib:jid_tolower(JID))),
     Nick = ejabberd_odbc:escape(Name),
@@ -881,6 +927,7 @@ record_to_string(#roster{us = {User, _Server},
      "'", Nick, "',"
      "'", SSubscription, "',"
      "'", SAsk, "',"
+     "'", AskMessage, "',"
      "'N', '', 'item')"].
 
 groups_to_string(#roster{us = {User, _Server},

src/odbc/mysql.sql

@@ -19,6 +19,7 @@ CREATE TABLE rosterusers (
     nick text,
     subscription character(1) NOT NULL,
     ask character(1) NOT NULL,
+    askmessage text,
     server character(1) NOT NULL,
     subscribe text,
     type text
@@ -91,3 +92,5 @@ CREATE INDEX i_vcard_search_lemail    ON vcard_search(lemail);
 CREATE INDEX i_vcard_search_lorgname  ON vcard_search(lorgname);
 CREATE INDEX i_vcard_search_lorgunit  ON vcard_search(lorgunit);
 
+--- To update from 1.x:
+-- ALTER TABLE rosterusers ADD COLUMN askmessage text AFTER ask;

src/odbc/pg.sql

@@ -18,6 +18,7 @@ CREATE TABLE rosterusers (
     nick text,
     subscription character(1) NOT NULL,
     ask character(1) NOT NULL,
+    askmessage text,
     server character(1) NOT NULL,
     subscribe text,
     "type" text
@@ -36,12 +37,6 @@ CREATE TABLE rostergroups (
 
 CREATE INDEX pk_rosterg_user_jid ON rostergroups USING btree (username, jid);
 
---- To update from previous table definition:
--- CREATE SEQUENCE spool_seq_seq;
--- ALTER TABLE spool ADD COLUMN seq integer;
--- ALTER TABLE spool ALTER COLUMN seq SET DEFAULT nextval('spool_seq_seq');
--- UPDATE spool SET seq = DEFAULT;
--- ALTER TABLE spool ALTER COLUMN seq SET NOT NULL;
 
 CREATE TABLE spool (
     username text NOT NULL,
@@ -95,3 +90,13 @@ CREATE INDEX i_vcard_search_llocality ON vcard_search(llocality);
 CREATE INDEX i_vcard_search_lemail    ON vcard_search(lemail);
 CREATE INDEX i_vcard_search_lorgname  ON vcard_search(lorgname);
 CREATE INDEX i_vcard_search_lorgunit  ON vcard_search(lorgunit);
+
+--- To update from 0.9.8:
+-- CREATE SEQUENCE spool_seq_seq;
+-- ALTER TABLE spool ADD COLUMN seq integer;
+-- ALTER TABLE spool ALTER COLUMN seq SET DEFAULT nextval('spool_seq_seq');
+-- UPDATE spool SET seq = DEFAULT;
+-- ALTER TABLE spool ALTER COLUMN seq SET NOT NULL;
+
+--- To update from 1.x:
+-- ALTER TABLE rosterusers ADD COLUMN askmessage text AFTER ask;