luci-base: Make default for FileUpload 'safe'

[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 8fd0a33..2c1bb4d 100644 (file)
--- a/modules/luci-base/luasrc/cbi.lua
+++ b/modules/luci-base/luasrc/cbi.lua
@@ -1811,6 +1811,7 @@ function Button.__init__(self, ...)
        self.template  = "cbi/button"
        self.inputstyle = nil
        self.rmempty = true
+        self.unsafeupload = false
 end
 
 
@@ -1827,9 +1828,15 @@ function FileUpload.__init__(self, ...)
 end
 
 function FileUpload.formcreated(self, section)
-       return AbstractValue.formcreated(self, section) or
-               self.map:formvalue("cbi.rlf."..section.."."..self.option) or
-               self.map:formvalue("cbi.rlf."..section.."."..self.option..".x")
+       if self.unsafeupload then
+               return AbstractValue.formcreated(self, section) or
+                       self.map:formvalue("cbi.rlf."..section.."."..self.option) or
+                       self.map:formvalue("cbi.rlf."..section.."."..self.option..".x") or
+                       self.map:formvalue("cbid."..self.map.config.."."..section.."."..self.option..".textbox")
+       else
+               return AbstractValue.formcreated(self, section) or
+                       self.map:formvalue("cbid."..self.map.config.."."..section.."."..self.option..".textbox")
+       end
 end
 
 function FileUpload.cfgvalue(self, section)
@@ -1840,27 +1847,50 @@ function FileUpload.cfgvalue(self, section)
        return nil
 end
 
+-- If we have a new value, use it
+-- otherwise use old value
+-- deletion should be managed by a separate button object
+-- unless self.unsafeupload is set in which case if the user
+-- choose to remove the old file we do so.
+-- Also, allow to specify (via textbox) a file already on router
 function FileUpload.formvalue(self, section)
        local val = AbstractValue.formvalue(self, section)
        if val then
-               if not self.map:formvalue("cbi.rlf."..section.."."..self.option) and
-                  not self.map:formvalue("cbi.rlf."..section.."."..self.option..".x")
-               then
+               if self.unsafeupload then
+                       if not self.map:formvalue("cbi.rlf."..section.."."..self.option) and
+                           not self.map:formvalue("cbi.rlf."..section.."."..self.option..".x")
+                       then
+                               return val
+                       end
+                       fs.unlink(val)
+                       self.value = nil
+                       return nil
+                elseif val ~= "" then
                        return val
-               end
-               fs.unlink(val)
-               self.value = nil
+                end
        end
-       return nil
+       val = luci.http.formvalue("cbid."..self.map.config.."."..section.."."..self.option..".textbox")
+       if val == "" then
+               val = nil
+       end
+        if not self.unsafeupload then
+               if not val then
+                       val = self.map:formvalue("cbi.rlf."..section.."."..self.option)
+               end
+        end
+       return val
 end
 
 function FileUpload.remove(self, section)
-       local val = AbstractValue.formvalue(self, section)
-       if val and fs.access(val) then fs.unlink(val) end
-       return AbstractValue.remove(self, section)
+       if self.unsafeupload then
+               local val = AbstractValue.formvalue(self, section)
+               if val and fs.access(val) then fs.unlink(val) end
+               return AbstractValue.remove(self, section)
+       else
+               return nil
+       end
 end
 
-
 FileBrowser = class(AbstractValue)
 
 function FileBrowser.__init__(self, ...)