* Updated UCI libraries

* Removed old UCI libraries
* Added new High-Level UCI API

5 files changed, 110 insertions, 391 deletions

diff --git a/libs/core/luasrc/model/uci.lua b/libs/core/luasrc/model/uci.lua
deleted file mode 100644
index 1abf56686..000000000
--- a/libs/core/luasrc/model/uci.lua
+++ /dev/null
@@ -1,92 +0,0 @@
---[[
-LuCI - UCI mpdel
-
-Description:
-Generalized UCI model
-
-FileId:
-$Id$
-
-License:
-Copyright 2008 Steven Barth <steven@midlink.org>
-
-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.
-
-]]--
-module("luci.model.uci", package.seeall)
-
--- Default savedir
-savedir = "/tmp/.uci"
-
--- Test whether to load libuci-Wrapper or /sbin/uci-Wrapper
-if pcall(require, "uci") then
-	Session = require("luci.model.uci.libuci").Session
-else
-	Session = require("luci.model.uci.wrapper").Session
-end
-
--- The default Session
-local default = Session()
-local state   = Session("/var/state")
-
--- The state Session
-function StateSession()
-	return state
-end
-
-
--- Wrapper for "uci add"
-function add(...)
-	return default:add(...)
-end
-
-
--- Wrapper for "uci changes"
-function changes(...)
-	return default:changes(...)
-end
-
--- Wrapper for "uci commit"
-function commit(...)
-	return default:commit(...)
-end
-
-
--- Wrapper for "uci del"
-function del(...)
-	return default:del(...)
-end
-
-
--- Wrapper for "uci get"
-function get(...)
-	return default:get(...)
-end
-
-
--- Wrapper for "uci revert"
-function revert(...)
-	return default:revert(...)
-end
-
-
--- Wrapper for "uci show"
-function sections(...)
-	return default:sections(...)
-end
-
-
--- Wrapper for "uci set"
-function set(...)
-	return default:set(...)
-end
diff --git a/libs/core/luasrc/model/uci/libuci.lua b/libs/core/luasrc/model/uci/libuci.lua
deleted file mode 100644
index 601ff2f87..000000000
--- a/libs/core/luasrc/model/uci/libuci.lua
+++ /dev/null
@@ -1,128 +0,0 @@
---[[
-LuCI - UCI libuci wrapper
-
-Description:
-Wrapper for the libuci Lua bindings
-
-FileId:
-$Id$
-
-License:
-Copyright 2008 Steven Barth <steven@midlink.org>
-
-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.
-
-]]--
-
-module("luci.model.uci.libuci", package.seeall)
-
-require("uci")
-require("luci.util")
-require("luci.sys")
-
--- Session class
-Session = luci.util.class()
-
--- Session constructor
-function Session.__init__(self, savedir)
-	self.savedir = savedir or luci.model.uci.savedir
-	uci.set_savedir(self.savedir)
-end
-
-function Session.add(self, config, section_type)
-	return uci.add(config, section_type)
-end
-
-function Session.changes(self, config)
-	if config then
-		return uci.changes(config)
-	else
-		return uci.changes()
-	end
-end
-
-function Session.commit(self, config)
-	return self:t_commit(config)
-end
-
-function Session.del(self, config, section, option)
-	return uci.del(config, section, option)
-end
-
-function Session.get(self, config, section, option)
-	return self:t_get(config, section, option)
-end
-
-function Session.revert(self, config)
-	return self:t_revert(config)
-end
-
-function Session.sections(self, config)
-	return self:t_sections(config)
-end
-
-function Session.set(self, config, section, option, value)
-	return self:t_set(config, section, option, value) and self:t_save(config)
-end
-
-function Session.synchronize(self)
-	return uci.set_savedir(self.savedir)
-end
-
-
--- UCI-Transactions
-
-function Session.t_load(self, config)
-	return self:synchronize() and uci.load(config)
-end
-
-function Session.t_save(self, config)
-	return uci.save(config)
-end
-
-function Session.t_add(self, config, type)
-	return self:add(config, type)
-end
-
-function Session.t_commit(self, config)
-	return uci.commit(config)
-end
-
-function Session.t_del(self, config, section, option)
-	return self:del(config, section, option)
-end
-
-function Session.t_get(self, config, section, option)
-	if option then
-		return uci.get(config, section, option)
-	else
-		return uci.get(config, section)
-	end
-end
-
-function Session.t_revert(self, config)
-	return uci.revert(config)
-end
-
-function Session.t_sections(self, config)
-	return uci.get_all(config)
-end
-
-function Session.t_set(self, config, section, option, value)
-	if option then
-		return uci.set(config, section, option, value)
-	else
-		return uci.set(config, section, value)
-	end
-end
-
diff --git a/libs/core/luasrc/model/uci/wrapper.lua b/libs/core/luasrc/model/uci/wrapper.lua
deleted file mode 100644
index e063b272c..000000000
--- a/libs/core/luasrc/model/uci/wrapper.lua
+++ /dev/null
@@ -1,171 +0,0 @@
---[[
-LuCI - UCI wrapper library
-
-Description:
-Wrapper for the /sbin/uci application, syntax of implemented functions
-is comparable to the syntax of the uci application
-
-Any return value of false or nil can be interpreted as an error
-
-FileId:
-$Id$
-
-License:
-Copyright 2008 Steven Barth <steven@midlink.org>
-
-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.
-
-]]--
-
-module("luci.model.uci.wrapper", package.seeall)
-
-require("luci.util")
-require("luci.sys")
-
--- Session class
-Session = luci.util.class()
-
--- Session constructor
-function Session.__init__(self, savedir)
-	self.ucicmd = savedir and "uci -P " .. savedir or "uci"
-end
-
-function Session.add(self, config, section_type)
-	return self:_uci("add " .. _path(config) .. " " .. _path(section_type))
-end
-
-function Session.changes(self, config)
-	return self:_uci("changes " .. _path(config))
-end
-
-function Session.commit(self, config)
-	return self:_uci2("commit " .. _path(config))
-end
-
-function Session.del(self, config, section, option)
-	return self:_uci2("del " .. _path(config, section, option))
-end
-
-function Session.get(self, config, section, option)
-	return self:_uci("get " .. _path(config, section, option))
-end
-
-function Session.revert(self, config)
-	return self:_uci2("revert " .. _path(config))
-end
-
-function Session.sections(self, config)	
-	if not config then
-		return nil
-	end
-	
-	local r1, r2 = self:_uci3("show " .. _path(config))
-	if type(r1) == "table" then
-		return r1, r2
-	else
-		return nil, r2
-	end
-end
-
-function Session.set(self, config, section, option, value)
-	return self:_uci2("set " .. _path(config, section, option, value))
-end
-
-function Session.synchronize(self) end
-
--- Dummy transaction functions
-
-function Session.t_load(self) end
-function Session.t_save(self) end
-
-Session.t_add = Session.add
-Session.t_commit = Session.commit
-Session.t_del = Session.del
-Session.t_get = Session.get
-Session.t_revert = Session.revert
-Session.t_sections = Session.sections
-Session.t_set = Session.set
-
-
-
-
-
--- Internal functions --
-
-
-function Session._uci(self, cmd)
-	local res = luci.sys.exec(self.ucicmd .. " 2>/dev/null " .. cmd)
-	
-	if res:len() == 0 then
-		return nil
-	else
-		return res:sub(1, res:len()-1)
-	end	
-end
-
-function Session._uci2(self, cmd)
-	local res = luci.sys.exec(self.ucicmd .. " 2>&1 " .. cmd)
-	
-	if res:len() > 0 then
-		return false, res
-	else
-		return true
-	end	
-end
-
-function Session._uci3(self, cmd)
-	local res = luci.sys.execl(self.ucicmd .. " 2>&1 " .. cmd)
-	if res[1] and res[1]:sub(1, self.ucicmd:len()+1) == self.ucicmd..":" then
-		return nil, res[1]
-	end
-
-	local tbl = {}
-	local ord = {}
-
-	for k,line in pairs(res) do
-		c, s, t = line:match("^([^.]-)%.([^.]-)=(.-)$")
-		if c then
-			tbl[s] = {}
-			table.insert(ord, s)
-			tbl[s][".type"] = t
-		end
-	
-		c, s, o, v = line:match("^([^.]-)%.([^.]-)%.([^.]-)=(.-)$")
-		if c then
-			tbl[s][o] = v
-		end
-	end
-	
-	return tbl, ord
-end
-
--- Build path (config.section.option=value) and prevent command injection
-function _path(...)
-	local result = ""
-	
-	-- Not using ipairs because it is not reliable in case of nil arguments
-	arg.n = nil
-	for k,v in pairs(arg) do
-		if v then
-			v = tostring(v)
-			if k == 1 then
-				result = "'" .. v:gsub("['.]", "") .. "'"
-			elseif k < 4 then
-				result = result .. ".'" .. v:gsub("['.]", "") .. "'"
-			elseif k == 4 then
-				result = result .. "='" .. v:gsub("'", "") .. "'"
-			end
-		end
-	end
-	return result
-end
\ No newline at end of file
diff --git a/libs/uci/Makefile b/libs/uci/Makefile
new file mode 100644
index 000000000..81a96f6a8
--- /dev/null
+++ b/libs/uci/Makefile
@@ -0,0 +1,2 @@
+include ../../build/config.mk
+include ../../build/module.mk
\ No newline at end of file
diff --git a/libs/uci/luasrc/model/uci.lua b/libs/uci/luasrc/model/uci.lua
new file mode 100644
index 000000000..060e074c4
--- /dev/null
+++ b/libs/uci/luasrc/model/uci.lua
@@ -0,0 +1,108 @@
+--[[
+LuCI - UCI mpdel
+
+Description:
+Generalized UCI model
+
+FileId:
+$Id$
+
+License:
+Copyright 2008 Steven Barth <steven@midlink.org>
+
+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.
+
+]]--
+local uci  = require("uci")
+local util = require("luci.util")
+local setmetatable = setmetatable
+local rawget = rawget
+local rawset = rawset
+local error = error
+local tostring = tostring
+
+module("luci.model.uci", function(m) setmetatable(m, {__index = uci}) end)
+
+local configs_mt = {}
+local sections_mt = {}
+local options_mt = {}
+
+config = {}
+setmetatable(config, configs_mt)
+
+-- Level 1 (configs)
+function configs_mt.__index(self, key)
+	local node = rawget(self, key)
+	if not node then
+		node = {}
+		node[".name"] = key
+		setmetatable(node, sections_mt)
+		rawset(self, key, node)
+	end
+	return node
+end
+function configs_mt.__newindex()
+	error("invalid operation")
+end
+
+
+-- Level 2 (sections)
+function sections_mt.__index(self, key)
+	local node = rawget(self, key)
+	if not node then
+		node = {}
+		node[".conf"] = self[".name"]
+		node[".name"] = key
+		node[".type"] = uci.get(self[".name"], key)
+		setmetatable(node, options_mt)
+		rawset(self, key, node)
+	end
+	return node
+end
+function sections_mt.__newindex(self, key, value)
+	if not value then
+		if uci.delete(self[".name"], key) then
+			rawset(self, key, nil)
+		else
+			error("unable to delete section")
+		end
+	elseif key == "" then
+		key = uci.add(self[".name"], tostring(value))
+		if key then
+			rawset(self, "", self[key])
+		else
+			error("unable to create section")
+		end 
+	else
+		if not uci.set(self[".name"], key, value) then
+			error("unable to create section")
+		end
+	end
+end
+
+
+-- Level 3 (options)
+function options_mt.__index(self, key)
+	return uci.get(self[".conf"], self[".name"], key)
+end
+function options_mt.__newindex(self, key, value)
+	if not value then
+		if not uci.delete(self[".conf"], self[".name"], key) then
+			error("unable to delete option")
+		end
+	else
+		if not uci.set(self[".conf"], self[".name"], key, tostring(value)) then
+			error("unable to write option")
+		end
+	end
+end