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moved checks to more generic canread() and canwrite() functions

This commit is contained in:
Izaya 2017-09-15 17:40:34 +10:00
parent 3138eb29b8
commit 3c84f6224b
1 changed files with 11 additions and 5 deletions
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16
modules/lib/fs.lua
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@ -16,11 +16,19 @@ do
end
return tacl
end
fs.parseacl = parseacl
local function getattr(fn,k)
local function canread(fn)
if os.getuid() ~= "superuser" then
if not parseacl(fsattr[fn].read or "")[os.getuid()] then return false end
end
end
local function canwrite(fn)
if os.getuid() ~= "superuser" then
if not parseacl(getattr(fn,"write"))[os.getuid()] then return false end
end
end
fs.parseacl = parseacl
local function getattr(fn,k)
if not canread(fn) then return false end
if fsattr[fn] then
return fsattr[fn][k]
else
@ -28,11 +36,9 @@ do
end
end
local function setattr(fn,k,v)
if not canwrite(fn) then return false end
if k:find("\t") or v:find("\t") then return false end
log(parseacl(getattr(fn,"write"))[os.getuid()])
if os.getuid() ~= "superuser" then
if not parseacl(getattr(fn,"write"))[os.getuid()] then return false end
end
if not fsattr[fn] then
fsattr[fn] = {}
setmetatable(fsattr[fn],{__index=dfsattr})