From 6509e007e29f438d74b01eb6e23a09f02775dd6c Mon Sep 17 00:00:00 2001 From: Daniel Dickinson Date: Tue, 1 Dec 2015 23:02:38 -0500 Subject: [PATCH] luci-base: Make default for FileUpload 'safe' Some files and pointers to files are not safe to remove without a replacement file and config pointing to the file. For instance for uhttpd application in the works, removing the certificate or key config or files without having the replacements in places renders the WeUI inaccessible. The only other place where FileUpload is currently used is for wifi certificates for which the 'safe' handling is also preferred. Therefore make the default for the FileUpload widget the safe handling and add a property self.unsafeupload that allows for the old unsafe handling should it prove useful in some case. Also allow to specify a file already on router instead of uploading a file. Signed-off By: Daniel Dickinson --- modules/luci-base/luasrc/cbi.lua | 58 +++++++++++++++----- modules/luci-base/luasrc/view/cbi/upload.htm | 16 +++++- 2 files changed, 57 insertions(+), 17 deletions(-) diff --git a/modules/luci-base/luasrc/cbi.lua b/modules/luci-base/luasrc/cbi.lua index b5b2c8d8f..9b88e9fd9 100644 --- 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, ...) diff --git a/modules/luci-base/luasrc/view/cbi/upload.htm b/modules/luci-base/luasrc/view/cbi/upload.htm index 777093411..157f3b36f 100644 --- a/modules/luci-base/luasrc/view/cbi/upload.htm +++ b/modules/luci-base/luasrc/view/cbi/upload.htm @@ -6,9 +6,19 @@ <%+cbi/valueheader%> <% if s then %> <%:Uploaded File%> (<%=t.byte_format(s.size)%>) - /> - " alt="<%:Replace entry%>" title="<%:Replace entry%>" src="<%=resource%>/cbi/reload.gif" /> - <% else %> + <% if self.unsafeupload then %> + /> + " alt="<%:Replace entry%>" title="<%:Replace entry%>" src="<%=resource%>/cbi/reload.gif" /> + <% end %> + <% end %> + + <% if not self.unsafeupload then %> + /> + <% end %> + + <% if (not s) or (s and not self.unsafeupload) then %> /> <% end %> + /> <%+cbi/valuefooter%> -- 2.25.1