7 files changed, 650 insertions, 3 deletions
diff --git a/plugins/mod_offline.lua b/plugins/mod_offline.lua
new file mode 100644
index 00000000..24aef9ed
--- /dev/null
+++ b/plugins/mod_offline.lua
@@ -0,0 +1,56 @@
+-- Prosody IM
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+-- 
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+
+local datamanager = require "util.datamanager";
+local st = require "util.stanza";
+local datetime = require "util.datetime";
+local ipairs = ipairs;
+local jid_split = require "util.jid".split;
+
+module:add_feature("msgoffline");
+
+module:hook("message/offline/store", function(event)
+	local origin, stanza = event.origin, event.stanza;
+	local to = stanza.attr.to;
+	local node, host;
+	if to then
+		node, host = jid_split(to)
+	else
+		node, host = origin.username, origin.host;
+	end
+	
+	stanza.attr.stamp, stanza.attr.stamp_legacy = datetime.datetime(), datetime.legacy();
+	local result = datamanager.list_append(node, host, "offline", st.preserialize(stanza));
+	stanza.attr.stamp, stanza.attr.stamp_legacy = nil, nil;
+	
+	return true;
+end);
+
+module:hook("message/offline/broadcast", function(event)
+	local origin = event.origin;
+	local node, host = origin.username, origin.host;
+	
+	local data = datamanager.list_load(node, host, "offline");
+	if not data then return true; end
+	for _, stanza in ipairs(data) do
+		stanza = st.deserialize(stanza);
+		stanza:tag("delay", {xmlns = "urn:xmpp:delay", from = host, stamp = stanza.attr.stamp}):up(); -- XEP-0203
+		stanza:tag("x", {xmlns = "jabber:x:delay", from = host, stamp = stanza.attr.stamp_legacy}):up(); -- XEP-0091 (deprecated)
+		stanza.attr.stamp, stanza.attr.stamp_legacy = nil, nil;
+		origin.send(stanza);
+	end
+	return true;
+end);
+
+module:hook("message/offline/delete", function(event)
+	local origin = event.origin;
+	local node, host = origin.username, origin.host;
+
+	return datamanager.list_store(node, host, "offline", nil);
+end);
diff --git a/plugins/storage/ejabberdstore.lib.lua b/plugins/storage/ejabberdstore.lib.lua
new file mode 100644
index 00000000..7e8592a8
--- /dev/null
+++ b/plugins/storage/ejabberdstore.lib.lua
@@ -0,0 +1,190 @@
+
+local handlers = {};
+
+handlers.accounts = {
+	get = function(self, user)
+		local select = self:query("select password from users where username=?", user);
+		local row = select and select:fetch();
+		if row then return { password = row[1] }; end
+	end;
+	set = function(self, user, data)
+		if data and data.password then
+			return self:modify("update users set password=? where username=?", data.password, user)
+				or self:modify("insert into users (username, password) values (?, ?)", user, data.password);
+		else
+			return self:modify("delete from users where username=?", user);
+		end
+	end;
+};
+handlers.vcard = {
+	get = function(self, user)
+		local select = self:query("select vcard from vcard where username=?", user);
+		local row = select and select:fetch();
+		if row then return parse_xml(row[1]); end
+	end;
+	set = function(self, user, data)
+		if data then
+			data = unparse_xml(data);
+			return self:modify("update vcard set vcard=? where username=?", data, user)
+				or self:modify("insert into vcard (username, vcard) values (?, ?)", user, data);
+		else
+			return self:modify("delete from vcard where username=?", user);
+		end
+	end;
+};
+handlers.private = {
+	get = function(self, user)
+		local select = self:query("select namespace,data from private_storage where username=?", user);
+		if select then
+			local data = {};
+			for row in select:rows() do
+				data[row[1]] = parse_xml(row[2]);
+			end
+			return data;
+		end
+	end;
+	set = function(self, user, data)
+		if data then
+			self:modify("delete from private_storage where username=?", user);
+			for namespace,text in pairs(data) do
+				self:modify("insert into private_storage (username, namespace, data) values (?, ?, ?)", user, namespace, unparse_xml(text));
+			end
+			return true;
+		else
+			return self:modify("delete from private_storage where username=?", user);
+		end
+	end;
+	-- TODO map_set, map_get
+};
+local subscription_map = { N = "none", B = "both", F = "from", T = "to" };
+local subscription_map_reverse = { none = "N", both = "B", from = "F", to = "T" };
+handlers.roster = {
+	get = function(self, user)
+		local select = self:query("select jid,nick,subscription,ask,server,subscribe,type from rosterusers where username=?", user);
+		if select then
+			local roster = { pending = {} };
+			for row in select:rows() do
+				local jid,nick,subscription,ask,server,subscribe,typ = unpack(row);
+				local item = { groups = {} };
+				if nick == "" then nick = nil; end
+				item.nick = nick;
+				item.subscription = subscription_map[subscription];
+				if ask == "N" then ask = nil;
+				elseif ask == "O" then ask = "subscribe"
+				elseif ask == "I" then roster.pending[jid] = true; ask = nil;
+				elseif ask == "B" then roster.pending[jid] = true; ask = "subscribe";
+				else module:log("debug", "bad roster_item.ask: %s", ask); ask = nil; end
+				item.ask = ask;
+				roster[jid] = item;
+			end
+			
+			select = self:query("select jid,grp from rostergroups where username=?", user);
+			if select then
+				for row in select:rows() do
+					local jid,grp = unpack(rows);
+					if roster[jid] then roster[jid].groups[grp] = true; end
+				end
+			end
+			select = self:query("select version from roster_version where username=?", user);
+			local row = select and select:fetch();
+			if row then
+				roster[false] = { version = row[1]; };
+			end
+			return roster;
+		end
+	end;
+	set = function(self, user, data)
+		if data and next(data) ~= nil then
+			self:modify("delete from rosterusers where username=?", user);
+			self:modify("delete from rostergroups where username=?", user);
+			self:modify("delete from roster_version where username=?", user);
+			local done = {};
+			local pending = data.pending or {};
+			for jid,item in pairs(data) do
+				if jid and jid ~= "pending" then
+					local subscription = subscription_map_reverse[item.subscription];
+					local ask;
+					if pending[jid] then
+						if item.ask then ask = "B"; else ask = "I"; end
+					else
+						if item.ask then ask = "O"; else ask = "N"; end
+					end
+					local r = self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?, '', '', '')", user, jid, item.nick or "", subscription, ask);
+					if not r then module:log("debug", "--- :( %s", tostring(r)); end
+					done[jid] = true;
+					for group in pairs(item.groups) do
+						self:modify("insert into rostergroups (username,jid,grp) values (?, ?, ?)", user, jid, group);
+					end
+				end
+			end
+			for jid in pairs(pending) do
+				if not done[jid] then
+					self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?. ''. ''. '')", user, jid, "", "N", "I");
+				end
+			end
+			local version = data[false] and data[false].version;
+			if version then
+				self:modify("insert into roster_version (username,version) values (?, ?)", user, version);
+			end
+			return true;
+		else
+			self:modify("delete from rosterusers where username=?", user);
+			self:modify("delete from rostergroups where username=?", user);
+			self:modify("delete from roster_version where username=?", user);
+		end
+	end;
+};
+
+-----------------------------
+local driver = {};
+driver.__index = driver;
+
+function driver:prepare(sql)
+	module:log("debug", "query: %s", sql);
+	local err;
+	if not self.sqlcache then self.sqlcache = {}; end
+	local r = self.sqlcache[sql];
+	if r then return r; end
+	r, err = self.database:prepare(sql);
+	if not r then error("Unable to prepare SQL statement: "..err); end
+	self.sqlcache[sql] = r;
+	return r;
+end
+
+function driver:query(sql, ...)
+	local stmt = self:prepare(sql);
+	if stmt:execute(...) then return stmt; end
+end
+function driver:modify(sql, ...)
+	local stmt = self:query(sql, ...);
+	if stmt and stmt:affected() > 0 then return stmt; end
+end
+
+function driver:open(host, datastore, typ)
+	local cache_key = host.." "..datastore;
+	if self.ds_cache[cache_key] then return self.ds_cache[cache_key]; end
+	local instance = setmetatable({}, self);
+	instance.host = host;
+	instance.datastore = datastore;
+	local handler = handlers[datastore];
+	if not handler then return nil; end
+	for key,val in pairs(handler) do
+		instance[key] = val;
+	end
+	if instance.init then instance:init(); end
+	self.ds_cache[cache_key] = instance;
+	return instance;
+end
+
+-----------------------------
+local _M = {};
+
+function _M.new(dbtype, dbname, ...)
+	local instance = setmetatable({}, driver);
+	instance.__index = instance;
+	instance.database = get_database(dbtype, dbname, ...);
+	instance.ds_cache = {};
+	return instance;
+end
+
+return _M;
diff --git a/plugins/storage/mod_storage.lua b/plugins/storage/mod_storage.lua
new file mode 100644
index 00000000..e22de82c
--- /dev/null
+++ b/plugins/storage/mod_storage.lua
@@ -0,0 +1,83 @@
+
+module:set_global();
+
+local cache = { data = {} };
+function cache:get(key) return self.data[key]; end
+function cache:set(key, val) self.data[key] = val; return val; end
+
+local DBI = require "DBI";
+function get_database(driver, db, ...)
+	local uri = "dbi:"..driver..":"..db;
+	return cache:get(uri) or cache:set(uri, (function(...)
+		module:log("debug", "Opening database: %s", uri);
+		prosody.unlock_globals();
+		local dbh = assert(DBI.Connect(...));
+		prosody.lock_globals();
+		dbh:autocommit(true)
+		return dbh;
+	end)(driver, db, ...));
+end
+
+local st = require "util.stanza";
+local _parse_xml = module:require("xmlparse");
+parse_xml_real = _parse_xml;
+function parse_xml(str)
+	local s = _parse_xml(str);
+	if s and not s.gsub then
+		return st.preserialize(s);
+	end
+end
+function unparse_xml(s)
+	return tostring(st.deserialize(s));
+end
+
+local drivers = {};
+
+--local driver = module:require("sqlbasic").new("SQLite3", "hello.sqlite");
+local option_datastore = module:get_option("datastore");
+local option_datastore_params = module:get_option("datastore_params") or {};
+if option_datastore then
+	local driver = module:require(option_datastore).new(unpack(option_datastore_params));
+	table.insert(drivers, driver);
+end
+
+local datamanager = require "util.datamanager";
+local olddm = {};
+local dm = {};
+for key,val in pairs(datamanager) do olddm[key] = val; end
+
+do -- driver based on old datamanager
+	local dmd = {};
+	dmd.__index = dmd;
+	function dmd:open(host, datastore)
+		return setmetatable({ host = host, datastore = datastore }, dmd);
+	end
+	function dmd:get(user) return olddm.load(user, self.host, self.datastore); end
+	function dmd:set(user, data) return olddm.store(user, self.host, self.datastore, data); end
+	table.insert(drivers, dmd);
+end
+
+local function open(...)
+	for _,driver in pairs(drivers) do
+		local ds = driver:open(...);
+		if ds then return ds; end
+	end
+end
+
+local _data_path;
+--function dm.set_data_path(path) _data_path = path; end
+--function dm.add_callback(...) end
+--function dm.remove_callback(...) end
+--function dm.getpath(...) end
+function dm.load(username, host, datastore)
+	local x = open(host, datastore);
+	return x:get(username);
+end
+function dm.store(username, host, datastore, data)
+	return open(host, datastore):set(username, data);
+end
+--function dm.list_append(...) return driver:list_append(...); end
+--function dm.list_store(...) return driver:list_store(...); end
+--function dm.list_load(...) return driver:list_load(...); end
+
+for key,val in pairs(dm) do datamanager[key] = val; end
diff --git a/plugins/storage/sqlbasic.lib.lua b/plugins/storage/sqlbasic.lib.lua
new file mode 100644
index 00000000..f1202287
--- /dev/null
+++ b/plugins/storage/sqlbasic.lib.lua
@@ -0,0 +1,97 @@
+
+-- Basic SQL driver
+-- This driver stores data as simple key-values
+
+local ser = require "util.serialization".serialize;
+local deser = function(data)
+	module:log("debug", "deser: %s", tostring(data));
+	if not data then return nil; end
+	local f = loadstring("return "..data);
+	if not f then return nil; end
+	setfenv(f, {});
+	local s, d = pcall(f);
+	if not s then return nil; end
+	return d;
+end;
+
+local driver = {};
+driver.__index = driver;
+
+driver.item_table = "item";
+driver.list_table = "list";
+
+function driver:prepare(sql)
+	module:log("debug", "query: %s", sql);
+	local err;
+	if not self.sqlcache then self.sqlcache = {}; end
+	local r = self.sqlcache[sql];
+	if r then return r; end
+	r, err = self.connection:prepare(sql);
+	if not r then error("Unable to prepare SQL statement: "..err); end
+	self.sqlcache[sql] = r;
+	return r;
+end
+
+function driver:load(username, host, datastore)
+	local select = self:prepare("select data from "..self.item_table.." where username=? and host=? and datastore=?");
+	select:execute(username, host, datastore);
+	local row = select:fetch();
+	return row and deser(row[1]) or nil;
+end
+
+function driver:store(username, host, datastore, data)
+	if not data or next(data) == nil then
+		local delete = self:prepare("delete from "..self.item_table.." where username=? and host=? and datastore=?");
+		delete:execute(username, host, datastore);
+		return true;
+	else
+		local d = self:load(username, host, datastore);
+		if d then -- update
+			local update = self:prepare("update "..self.item_table.." set data=? where username=? and host=? and datastore=?");
+			return update:execute(ser(data), username, host, datastore);
+		else -- insert
+			local insert = self:prepare("insert into "..self.item_table.." values (?, ?, ?, ?)");
+			return insert:execute(username, host, datastore, ser(data));
+		end
+	end
+end
+
+function driver:list_append(username, host, datastore, data)
+	if not data then return; end
+	local insert = self:prepare("insert into "..self.list_table.." values (?, ?, ?, ?)");
+	return insert:execute(username, host, datastore, ser(data));
+end
+
+function driver:list_store(username, host, datastore, data)
+	-- remove existing data
+	local delete = self:prepare("delete from "..self.list_table.." where username=? and host=? and datastore=?");
+	delete:execute(username, host, datastore);
+	if data and next(data) ~= nil then
+		-- add data
+		for _, d in ipairs(data) do
+			self:list_append(username, host, datastore, ser(d));
+		end
+	end
+	return true;
+end
+
+function driver:list_load(username, host, datastore)
+	local select = self:prepare("select data from "..self.list_table.." where username=? and host=? and datastore=?");
+	select:execute(username, host, datastore);
+	local r = {};
+	for row in select:rows() do
+		table.insert(r, deser(row[1]));
+	end
+	return r;
+end
+
+local _M = {};
+function _M.new(dbtype, dbname, ...)
+	local d = {};
+	setmetatable(d, driver);
+	local dbh = get_database(dbtype, dbname, ...);
+	--d:set_connection(dbh);
+	d.connection = dbh;
+	return d;
+end
+return _M;
diff --git a/plugins/storage/xep227store.lib.lua b/plugins/storage/xep227store.lib.lua
new file mode 100644
index 00000000..5ef8df54
--- /dev/null
+++ b/plugins/storage/xep227store.lib.lua
@@ -0,0 +1,168 @@
+
+local st = require "util.stanza";
+
+local function getXml(user, host)
+	local jid = user.."@"..host;
+	local path = "data/"..jid..".xml";
+	local f = io.open(path);
+	if not f then return; end
+	local s = f:read("*a");
+	return parse_xml_real(s);
+end
+local function setXml(user, host, xml)
+	local jid = user.."@"..host;
+	local path = "data/"..jid..".xml";
+	if xml then
+		local f = io.open(path, "w");
+		if not f then return; end
+		local s = tostring(xml);
+		f:write(s);
+		f:close();
+		return true;
+	else
+		return os.remove(path);
+	end
+end
+local function getUserElement(xml)
+	if xml and xml.name == "server-data" then
+		local host = xml.tags[1];
+		if host and host.name == "host" then
+			local user = host.tags[1];
+			if user and user.name == "user" then
+				return user;
+			end
+		end
+	end
+end
+local function createOuterXml(user, host)
+	return st.stanza("server-data", {xmlns='http://www.xmpp.org/extensions/xep-0227.html#ns'})
+		:tag("host", {jid=host})
+			:tag("user", {name = user});
+end
+local function removeFromArray(array, value)
+	for i,item in ipairs(array) do
+		if item == value then
+			table.remove(array, i);
+			return;
+		end
+	end
+end
+local function removeStanzaChild(s, child)
+	removeFromArray(s.tags, child);
+	removeFromArray(s, child);
+end
+
+local handlers = {};
+
+handlers.accounts = {
+	get = function(self, user)
+		local user = getUserElement(getXml(user, self.host));
+		if user and user.attr.password then
+			return { password = user.attr.password };
+		end
+	end;
+	set = function(self, user, data)
+		if data and data.password then
+			local xml = getXml(user, self.host);
+			if not xml then xml = createOuterXml(user, self.host); end
+			local usere = getUserElement(xml);
+			usere.attr.password = data.password;
+			return setXml(user, self.host, xml);
+		else
+			return setXml(user, self.host, nil);
+		end
+	end;
+};
+handlers.vcard = {
+	get = function(self, user)
+		local user = getUserElement(getXml(user, self.host));
+		if user then
+			local vcard = user:get_child("vCard", 'vcard-temp');
+			if vcard then
+				return st.preserialize(vcard);
+			end
+		end
+	end;
+	set = function(self, user, data)
+		local xml = getXml(user, self.host);
+		local usere = xml and getUserElement(xml);
+		if usere then
+			local vcard = usere:get_child("vCard", 'vcard-temp');
+			if vcard then
+				removeStanzaChild(usere, vcard);
+			elseif not data then
+				return true;
+			end
+			if data then
+				vcard = st.deserialize(data);
+				usere:add_child(vcard);
+			end
+			return setXml(user, self.host, xml);
+		end
+		return true;
+	end;
+};
+handlers.private = {
+	get = function(self, user)
+		local user = getUserElement(getXml(user, self.host));
+		if user then
+			local private = user:get_child("query", "jabber:iq:private");
+			if private then
+				local r = {};
+				for _, tag in ipairs(private.tags) do
+					r[tag.name..":"..tag.attr.xmlns] = st.preserialize(tag);
+				end
+				return r;
+			end
+		end
+	end;
+	set = function(self, user, data)
+		local xml = getXml(user, self.host);
+		local usere = xml and getUserElement(xml);
+		if usere then
+			local private = usere:get_child("query", 'jabber:iq:private');
+			if private then removeStanzaChild(usere, private); end
+			if data and next(data) ~= nil then
+				private = st.stanza("query", {xmlns='jabber:iq:private'});
+				for _,tag in pairs(data) do
+					private:add_child(st.deserialize(tag));
+				end
+				usere:add_child(private);
+			end
+			return setXml(user, self.host, xml);
+		end
+		return true;
+	end;
+};
+
+-----------------------------
+local driver = {};
+driver.__index = driver;
+
+function driver:open(host, datastore, typ)
+	local cache_key = host.." "..datastore;
+	if self.ds_cache[cache_key] then return self.ds_cache[cache_key]; end
+	local instance = setmetatable({}, self);
+	instance.host = host;
+	instance.datastore = datastore;
+	local handler = handlers[datastore];
+	if not handler then return nil; end
+	for key,val in pairs(handler) do
+		instance[key] = val;
+	end
+	if instance.init then instance:init(); end
+	self.ds_cache[cache_key] = instance;
+	return instance;
+end
+
+-----------------------------
+local _M = {};
+
+function _M.new()
+	local instance = setmetatable({}, driver);
+	instance.__index = instance;
+	instance.ds_cache = {};
+	return instance;
+end
+
+return _M;
diff --git a/plugins/storage/xmlparse.lib.lua b/plugins/storage/xmlparse.lib.lua
new file mode 100644
index 00000000..91063995
--- /dev/null
+++ b/plugins/storage/xmlparse.lib.lua
@@ -0,0 +1,56 @@
+
+local st = require "util.stanza";
+
+-- XML parser
+local parse_xml = (function()
+	local entity_map = setmetatable({
+		["amp"] = "&";
+		["gt"] = ">";
+		["lt"] = "<";
+		["apos"] = "'";
+		["quot"] = "\"";
+	}, {__index = function(_, s)
+			if s:sub(1,1) == "#" then
+				if s:sub(2,2) == "x" then
+					return string.char(tonumber(s:sub(3), 16));
+				else
+					return string.char(tonumber(s:sub(2)));
+				end
+			end
+		end
+	});
+	local function xml_unescape(str)
+		return (str:gsub("&(.-);", entity_map));
+	end
+	local function parse_tag(s)
+		local name,sattr=(s):gmatch("([^%s]+)(.*)")();
+		local attr = {};
+		for a,b in (sattr):gmatch("([^=%s]+)=['\"]([^'\"]*)['\"]") do attr[a] = xml_unescape(b); end
+		return name, attr;
+	end
+	return function(xml)
+		local stanza = st.stanza("root");
+		local regexp = "<([^>]*)>([^<]*)";
+		for elem, text in xml:gmatch(regexp) do
+			if elem:sub(1,1) == "!" or elem:sub(1,1) == "?" then -- neglect comments and processing-instructions
+			elseif elem:sub(1,1) == "/" then -- end tag
+				elem = elem:sub(2);
+				stanza:up(); -- TODO check for start-end tag name match
+			elseif elem:sub(-1,-1) == "/" then -- empty tag
+				elem = elem:sub(1,-2);
+				local name,attr = parse_tag(elem);
+				stanza:tag(name, attr):up();
+			else -- start tag
+				local name,attr = parse_tag(elem);
+				stanza:tag(name, attr);
+			end
+			if #text ~= 0 then -- text
+				stanza:text(xml_unescape(text));
+			end
+		end
+		return stanza.tags[1];
+	end
+end)();
+-- end of XML parser
+
+return parse_xml;
diff --git a/prosody b/prosody
index b13369a9..4b016e50 100755
--- a/prosody
+++ b/prosody
@@ -22,9 +22,6 @@ if CFG_SOURCEDIR then
 	package.cpath = CFG_SOURCEDIR.."/?.so;"..package.cpath;
 end
 
-package.path = package.path..";"..(CFG_SOURCEDIR or ".").."/fallbacks/?.lua";
-package.cpath = package.cpath..";"..(CFG_SOURCEDIR or ".").."/fallbacks/?.so";
-
 -- Substitute ~ with path to home directory in data path
 if CFG_DATADIR then
 	if os.getenv("HOME") then