luci-base: prevent parsing the form input after cbi emergency save

[project/luci.git] / modules / luci-base / luasrc / cbi.lua

diff --git a/modules/luci-base/luasrc/cbi.lua b/modules/luci-base/luasrc/cbi.lua
index ae570b1..45c9189 100644 (file)
--- a/modules/luci-base/luasrc/cbi.lua
+++ b/modules/luci-base/luasrc/cbi.lua
@@ -1,29 +1,6 @@
---[[
-LuCI - Configuration Bind Interface
-
-Description:
-Offers an interface for binding configuration values to certain
-data types. Supports value and range validation and basic dependencies.
-
-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.
+-- Copyright 2008 Steven Barth <steven@midlink.org>
+-- Licensed to the public under the Apache License 2.0.
 
-]]--
 module("luci.cbi", package.seeall)
 
 require("luci.template")
@@ -35,6 +12,7 @@ require("luci.http")
 local fs         = require("nixio.fs")
 local uci        = require("luci.model.uci")
 local datatypes  = require("luci.cbi.datatypes")
+local dispatcher = require("luci.dispatcher")
 local class      = util.class
 local instanceof = util.instanceof
 
@@ -330,8 +308,30 @@ function Map.__init__(self, config, ...)
 
        self.changed = false
 
-       if not self.uci:load(self.config) then
-               error("Unable to read UCI data: " .. self.config)
+       local path = "%s/%s" %{ self.uci:get_confdir(), self.config }
+       if fs.stat(path, "type") ~= "reg" then
+               fs.writefile(path, "")
+       end
+
+       local ok, err = self.uci:load(self.config)
+       if not ok then
+               local url = dispatcher.build_url(unpack(dispatcher.context.request))
+               local source = self:formvalue("cbi.source")
+               if type(source) == "string" then
+                       fs.writefile(path, source:gsub("\r\n", "\n"))
+                       ok, err = self.uci:load(self.config)
+                       if ok then
+                               luci.http.redirect(url)
+                       end
+               end
+               self.save = false
+       end
+
+       if not ok then
+               self.template   = "cbi/error"
+               self.error      = err
+               self.source     = fs.readfile(path) or ""
+               self.pageaction = false
        end
 end