* CBI update
[project/luci.git] / src / ffluci / cbi.lua
index 0c2718e..22a4019 100644 (file)
@@ -31,20 +31,19 @@ require("ffluci.util")
 require("ffluci.http")
 require("ffluci.model.uci")
 
-local Template   = ffluci.template.Template
 local class      = ffluci.util.class
 local instanceof = ffluci.util.instanceof
 
-
+-- Loads a CBI map from given file, creating an environment and returns it
 function load(cbimap)
        require("ffluci.fs")
        require("ffluci.i18n")
        
        local cbidir = ffluci.fs.dirname(ffluci.util.__file__()) .. "model/cbi/"
-       local func = loadfile(cbidir..cbimap..".lua")
+       local func, err = loadfile(cbidir..cbimap..".lua")
        
        if not func then
-               error("Unable to load CBI map: " .. cbimap)
+               error(err)
                return nil
        end
        
@@ -59,6 +58,8 @@ function load(cbimap)
                return nil
        end
        
+       ffluci.i18n.loadc("cbi")
+       
        return map
 end
 
@@ -72,23 +73,27 @@ function Node.__init__(self, title, description)
        self.template = "cbi/node"
 end
 
+-- Append child nodes
 function Node.append(self, obj)
        table.insert(self.children, obj)
 end
 
-function Node.parse(self)
+-- Parse this node and its children
+function Node.parse(self, ...)
        for k, child in ipairs(self.children) do
-               child:parse()
+               child:parse(...)
        end
 end
 
+-- Render this node
 function Node.render(self)
        ffluci.template.render(self.template, {self=self})
 end
 
-function Node.render_children(self)
+-- Render the children
+function Node.render_children(self, ...)
        for k, node in ipairs(self.children) do
-               node:render()
+               node:render(...)
        end
 end
 
@@ -102,33 +107,19 @@ function Map.__init__(self, config, ...)
        Node.__init__(self, ...)
        self.config = config
        self.template = "cbi/map"
-end
-
-function Map.parse(self)
-       self.ucidata = ffluci.model.uci.show(self.config)
+       self.uci = ffluci.model.uci.Session()
+       self.ucidata = self.uci:show(self.config)
        if not self.ucidata then
                error("Unable to read UCI data: " .. self.config)
        else
                self.ucidata = self.ucidata[self.config]
-       end
-       Node.parse(self)
-end
-
-function Map.render(self)
-       self.ucidata = ffluci.model.uci.show(self.config)
-       if not self.ucidata then
-               error("Unable to read UCI data: " .. self.config)
-       else
-               self.ucidata = self.ucidata[self.config]
-       end
-       Node.render(self)       
+       end     
 end
 
+-- Creates a child section
 function Map.section(self, class, ...)
        if instanceof(class, AbstractSection) then
-               local obj  = class(...)
-               obj.map    = self
-               obj.config = self.config
+               local obj  = class(self, ...)
                self:append(obj)
                return obj
        else
@@ -136,28 +127,160 @@ function Map.section(self, class, ...)
        end
 end
 
+-- UCI add
+function Map.add(self, sectiontype)
+       local name = self.uci:add(self.config, sectiontype)
+       if name then
+               self.ucidata[name] = self.uci:show(self.config, name)
+       end
+       return name
+end
+
+-- UCI set
+function Map.set(self, section, option, value)
+       local stat = self.uci:set(self.config, section, option, value)
+       if stat then
+               local val = self.uci:get(self.config, section, option)
+               if option then
+                       self.ucidata[section][option] = val
+               else
+                       if not self.ucidata[section] then
+                               self.ucidata[section] = {}
+                       end
+                       self.ucidata[section][".type"] = val
+               end
+       end
+       return stat
+end
+
+-- UCI del
+function Map.del(self, section, option)
+       local stat = self.uci:del(self.config, section, option)
+       if stat then
+               if option then
+                       self.ucidata[section][option] = nil
+               else
+                       self.ucidata[section] = nil
+               end
+       end
+       return stat
+end
+
+-- UCI get (cached)
+function Map.get(self, section, option)
+       if not section then
+               return self.ucidata
+       elseif option and self.ucidata[section] then
+               return self.ucidata[section][option]
+       else
+               return self.ucidata[section]
+       end
+end
+
+
 --[[
 AbstractSection
 ]]--
 AbstractSection = class(Node)
 
-function AbstractSection.__init__(self, sectiontype, ...)
+function AbstractSection.__init__(self, map, sectiontype, ...)
        Node.__init__(self, ...)
        self.sectiontype = sectiontype
+       self.map = map
+       self.config = map.config
+       self.optionals = {}
+       
+       self.optional = true
+       self.addremove = false
+       self.dynamic = false
 end
 
+-- Appends a new option
 function AbstractSection.option(self, class, ...)
        if instanceof(class, AbstractValue) then
-               local obj  = class(...)
-               obj.map    = self.map
-               obj.config = self.config
+               local obj  = class(self.map, ...)
                self:append(obj)
                return obj
        else
                error("class must be a descendent of AbstractValue")
        end     
 end
+
+-- Parse optional options
+function AbstractSection.parse_optionals(self, section)
+       if not self.optional then
+               return
+       end
+       
+       self.optionals[section] = {}
        
+       local field = ffluci.http.formvalue("cbi.opt."..self.config.."."..section)
+       for k,v in ipairs(self.children) do
+               if v.optional and not v:cfgvalue(section) then
+                       if field == v.option then
+                               self.map:set(section, field, v.default)
+                               field = nil
+                       else
+                               table.insert(self.optionals[section], v)
+                       end
+               end
+       end
+       
+       if field and field:len() > 0 and self.dynamic then
+               self:add_dynamic(field)
+       end
+end
+
+-- Add a dynamic option
+function AbstractSection.add_dynamic(self, field, optional)
+       local o = self:option(Value, field, field)
+       o.optional = optional
+end
+
+-- Parse all dynamic options
+function AbstractSection.parse_dynamic(self, section)
+       if not self.dynamic then
+               return
+       end
+       
+       local arr  = ffluci.util.clone(self:cfgvalue(section))
+       local form = ffluci.http.formvalue("cbid."..self.config.."."..section)
+       if type(form) == "table" then
+               for k,v in pairs(form) do
+                       arr[k] = v
+               end
+       end     
+       
+       for key,val in pairs(arr) do
+               local create = true
+               
+               for i,c in ipairs(self.children) do
+                       if c.option == key then
+                               create = false
+                       end
+               end
+               
+               if create and key:sub(1, 1) ~= "." then
+                       self:add_dynamic(key, true)
+               end
+       end
+end    
+
+-- Returns the section's UCI table
+function AbstractSection.cfgvalue(self, section)
+       return self.map:get(section)
+end
+
+-- Removes the section
+function AbstractSection.remove(self, section)
+       return self.map:del(section)
+end
+
+-- Creates the section
+function AbstractSection.create(self, section)
+       return self.map:set(section, nil, self.sectiontype)
+end
+
 
 
 --[[
@@ -165,17 +288,39 @@ NamedSection - A fixed configuration section defined by its name
 ]]--
 NamedSection = class(AbstractSection)
 
-function NamedSection.__init__(self, section, ...)
-       AbstractSection.__init__(self, ...)
+function NamedSection.__init__(self, map, section, ...)
+       AbstractSection.__init__(self, map, ...)
        self.template = "cbi/nsection"
        
        self.section = section
+       self.addremove = false
 end
 
-function NamedSection.option(self, ...)
-       local obj = AbstractSection.option(self, ...)
-       obj.section = self.section
-       return obj
+function NamedSection.parse(self)
+       local s = self.section  
+       local active = self:cfgvalue(s)
+       
+       
+       if self.addremove then
+               local path = self.config.."."..s
+               if active then -- Remove the section
+                       if ffluci.http.formvalue("cbi.rns."..path) and self:remove(s) then
+                               return
+                       end
+               else           -- Create and apply default values
+                       if ffluci.http.formvalue("cbi.cns."..path) and self:create(s) then
+                               for k,v in pairs(self.children) do
+                                       v:write(s, v.default)
+                               end
+                       end
+               end
+       end
+       
+       if active then
+               AbstractSection.parse_dynamic(self, s)
+               Node.parse(self, s)
+               AbstractSection.parse_optionals(self, s)
+       end     
 end
 
 
@@ -183,7 +328,8 @@ end
 TypedSection - A (set of) configuration section(s) defined by the type
        addremove:      Defines whether the user can add/remove sections of this type
        anonymous:  Allow creating anonymous sections
-       valid:          a table with valid names or a function returning nil if invalid
+       valid:          a list of names or a validation function for creating sections 
+       scope:          a list of names or a validation function for editing sections
 ]]--
 TypedSection = class(AbstractSection)
 
@@ -191,86 +337,180 @@ function TypedSection.__init__(self, ...)
        AbstractSection.__init__(self, ...)
        self.template  = "cbi/tsection"
        
-       self.addremove = true
-       self.anonymous = false
-       self.valid     = nil
+       self.anonymous   = false
+       self.valid       = nil
+       self.scope               = nil
+end
+
+-- Creates a new section of this type with the given name (or anonymous)
+function TypedSection.create(self, name)
+       if name then    
+               self.map:set(name, nil, self.sectiontype)
+       else
+               name = self.map:add(self.sectiontype)
+       end
+       
+       for k,v in pairs(self.children) do
+               if v.default then
+                       self.map:set(name, v.option, v.default)
+               end
+       end
 end
 
 function TypedSection.parse(self)
-       for k, v in pairs(self:ucisections()) do
-               for i, node in ipairs(self.children) do
-                       node.section = k
-                       node:parse()
-               end 
+       if self.addremove then
+               -- Create
+               local crval = "cbi.cts." .. self.config .. "." .. self.sectiontype
+               local name  = ffluci.http.formvalue(crval)
+               if self.anonymous then
+                       if name then
+                               self:create()
+                       end
+               else            
+                       if name then
+                               name = ffluci.util.validate(name, self.valid)
+                               if not name then
+                                       self.err_invalid = true
+                               end             
+                               if name and name:len() > 0 then
+                                       self:create(name)
+                               end
+                       end
+               end
+               
+               -- Remove
+               crval = "cbi.rts." .. self.config
+               name = ffluci.http.formvalue(crval)
+               if type(name) == "table" then
+                       for k,v in pairs(name) do
+                               if ffluci.util.validate(k, self.valid) then
+                                       self:remove(k)
+                               end
+                       end
+               end             
+       end
+       
+       for k, v in pairs(self:cfgsections()) do
+               AbstractSection.parse_dynamic(self, k)
+               Node.parse(self, k)
+               AbstractSection.parse_optionals(self, k)
        end
 end
 
+-- Render the children
 function TypedSection.render_children(self, section)
        for k, node in ipairs(self.children) do
-               node.section = section
-               node:render()
+               node:render(section)
        end
 end
 
-function TypedSection.ucisections(self)
+-- Return all matching UCI sections for this TypedSection
+function TypedSection.cfgsections(self)
        local sections = {}
-       for k, v in pairs(self.map.ucidata) do
+       for k, v in pairs(self.map:get()) do
                if v[".type"] == self.sectiontype then
-                       sections[k] = v
+                       if ffluci.util.validate(k, self.scope) then
+                               sections[k] = v
+                       end
                end
        end
        return sections 
 end
 
 
+
 --[[
 AbstractValue - An abstract Value Type
        null:           Value can be empty
        valid:          A function returning the value if it is valid otherwise nil 
        depends:        A table of option => value pairs of which one must be true
        default:        The default value
+       size:           The size of the input fields
+       rmempty:        Unset value if empty
+       optional:       This value is optional (see AbstractSection.optionals)
 ]]--
 AbstractValue = class(Node)
 
-function AbstractValue.__init__(self, option, ...)
+function AbstractValue.__init__(self, map, option, ...)
        Node.__init__(self, ...)
-       self.option  = option
+       self.option = option
+       self.map    = map
+       self.config = map.config
+       self.tag_invalid = {}
        
-       self.valid   = nil
-       self.depends = nil
-       self.default = nil
+       self.valid    = nil
+       self.depends  = nil
+       self.default  = " "
+       self.size     = nil
+       self.optional = false
 end
 
-function AbstractValue.formvalue(self)
-       local key = "cbid."..self.map.config.."."..self.section.."."..self.option
+-- Returns the formvalue for this object
+function AbstractValue.formvalue(self, section)
+       local key = "cbid."..self.map.config.."."..section.."."..self.option
        return ffluci.http.formvalue(key)
 end
 
-function AbstractValue.parse(self)
-       local fvalue = self:validate(self:formvalue())
-       if fvalue and not (fvalue == self:ucivalue()) then
-               self:write(fvalue)
-       end 
+function AbstractValue.parse(self, section)
+       local fvalue = self:formvalue(section)
+       if fvalue == "" then
+               fvalue = nil
+       end
+       
+       
+       if fvalue then -- If we have a form value, validate it and write it to UCI
+               fvalue = self:validate(fvalue)
+               if not fvalue then
+                       self.tag_invalid[section] = true
+               end
+               if fvalue and not (fvalue == self:cfgvalue(section)) then
+                       self:write(section, fvalue)
+               end 
+       elseif ffluci.http.formvalue("cbi.submit") then -- Unset the UCI or error
+               if self.rmempty or self.optional then
+                       self:remove(section)
+               else
+                       self.tag_invalid[section] = true
+               end
+       end
 end
 
-function AbstractValue.ucivalue(self)
-       return self.map.ucidata[self.section][self.option]
+-- Render if this value exists or if it is mandatory
+function AbstractValue.render(self, section)
+       if not self.optional or self:cfgvalue(section) then 
+               ffluci.template.render(self.template, {self=self, section=section})
+       end
 end
 
-function AbstractValue.validate(self, value)
-       return ffluci.util.validate(value, nil, nil, self.valid)
+-- Return the UCI value of this object
+function AbstractValue.cfgvalue(self, section)
+       return self.map:get(section, self.option)
 end
 
-function AbstractValue.write(self, value)
-       return ffluci.model.uci.set(self.config, self.section, self.option, value)
+-- Validate the form value
+function AbstractValue.validate(self, val)
+       return ffluci.util.validate(val, self.valid)
 end
 
+-- Write to UCI
+function AbstractValue.write(self, section, value)
+       return self.map:set(section, self.option, value)
+end
+
+-- Remove from UCI
+function AbstractValue.remove(self, section)
+       return self.map:del(section, self.option)
+end
+
+
+
 
 --[[
 Value - A one-line value
        maxlength:      The maximum length
        isnumber:       The value must be a valid (floating point) number
        isinteger:  The value must be a valid integer
+       ispositive: The value must be positive (and a number)
 ]]--
 Value = class(AbstractValue)
 
@@ -278,25 +518,138 @@ function Value.__init__(self, ...)
        AbstractValue.__init__(self, ...)
        self.template  = "cbi/value"
        
-       self.maxlength = nil
-       self.isnumber  = false
-       self.isinteger = false
+       self.maxlength  = nil
+       self.isnumber   = false
+       self.isinteger  = false
 end
 
+-- This validation is a bit more complex
+function Value.validate(self, val)
+       if self.maxlength and tostring(val):len() > self.maxlength then
+               val = nil
+       end
+       
+       return ffluci.util.validate(val, self.valid, self.isnumber, self.isinteger)
+end
+
+
+
+--[[
+Flag - A flag being enabled or disabled
+]]--
+Flag = class(AbstractValue)
+
+function Flag.__init__(self, ...)
+       AbstractValue.__init__(self, ...)
+       self.template  = "cbi/fvalue"
+       
+       self.enabled = "1"
+       self.disabled = "0"
+end
+
+-- A flag can only have two states: set or unset
+function Flag.parse(self, section)
+       self.default = self.enabled
+       local fvalue = self:formvalue(section)
+       
+       if fvalue then
+               fvalue = self.enabled
+       else
+               fvalue = self.disabled
+       end     
+       
+       if fvalue == self.enabled or (not self.optional and not self.rmempty) then              
+               if not(fvalue == self:cfgvalue(section)) then
+                       self:write(section, fvalue)
+               end 
+       else
+               self:remove(section)
+       end
+end
+
+
 
 --[[
 ListValue - A one-line value predefined in a list
+       widget: The widget that will be used (select, radio)
 ]]--
 ListValue = class(AbstractValue)
 
 function ListValue.__init__(self, ...)
        AbstractValue.__init__(self, ...)
        self.template  = "cbi/lvalue"
+       self.keylist = {}
+       self.vallist = {}
+       
+       self.size   = 1
+       self.widget = "select"
+end
+
+function ListValue.add_value(self, key, val)
+       val = val or key
+       table.insert(self.keylist, tostring(key))
+       table.insert(self.vallist, tostring(val)) 
+end
+
+function ListValue.validate(self, val)
+       if ffluci.util.contains(self.keylist, val) then
+               return val
+       else
+               return nil
+       end
+end
+
+
+
+--[[
+MultiValue - Multiple delimited values
+       widget: The widget that will be used (select, checkbox)
+       delimiter: The delimiter that will separate the values (default: " ")
+]]--
+MultiValue = class(AbstractValue)
+
+function MultiValue.__init__(self, ...)
+       AbstractValue.__init__(self, ...)
+       self.template = "cbi/mvalue"
+       self.keylist = {}
+       self.vallist = {}       
        
-       self.list = {}
+       self.widget = "checkbox"
+       self.delimiter = " "
 end
 
-function ListValue.addValue(self, key, val)
+function MultiValue.add_value(self, key, val)
        val = val or key
-       self.list[key] = val
+       table.insert(self.keylist, tostring(key))
+       table.insert(self.vallist, tostring(val)) 
+end
+
+function MultiValue.valuelist(self, section)
+       local val = self:cfgvalue(section)
+       
+       if not(type(val) == "string") then
+               return {}
+       end
+       
+       return ffluci.util.split(val, self.delimiter)
+end
+
+function MultiValue.validate(self, val)
+       if not(type(val) == "string") then
+               return nil
+       end
+       
+       local result = ""
+       
+       for value in val:gmatch("[^\n]+") do
+               if ffluci.util.contains(self.keylist, value) then
+                       result = result .. self.delimiter .. value
+               end 
+       end
+       
+       if result:len() > 0 then
+               return result:sub(self.delimiter:len() + 1)
+       else
+               return nil
+       end
 end
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