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improved ipv4 validation function

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This commit is contained in:
gabryon99 2020-11-06 18:29:29 +01:00
parent dd8c26d0cc
commit 75363aae84
2 changed files with 18 additions and 21 deletions
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37
scripts/lua/modules/lua_utils.lua
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@ -846,31 +846,28 @@ function isBroadcastMulticast(ip)
end
function isIPv4(address)
local chunks = {address:match("^(%d+)%.(%d+)%.(%d+)%.(%d+)$")}
if #chunks == 4 then
for _, v in pairs(chunks) do
if (tonumber(v) < 0) or (tonumber(v) > 255) then
return false
-- Reuse the for loop to check the address validity
local checkAddress = (function(chunks)
for _, v in pairs(chunks) do
if (tonumber(v) < 0) or (tonumber(v) > 255) then
return false
end
end
end
return true
end)
return true
end
local chunks = {address:match("^(%d+)%.(%d+)%.(%d+)%.(%d+)$")}
local chunksWithPort = {address:match("^(%d+)%.(%d+)%.(%d+)%.(%d+)%:(%d+)$")}
return false
end
if #chunks == 4 then
return checkAddress(chunks)
elseif #chunksWithPort == 5 then
table.remove(chunksWithPort, 5)
return checkAddress(chunksWithPort)
end
--- Return true if the address is made up with <IPv4-Address>:<Port>
function isIPv4WithPort(address)
local parts = split(address, ":")
if #parts ~= 2 then return false end
local isPortValid = ternary(tonumber(parts[2]) > 65535, false, true)
local isAddressValid = isIPv4(parts[1])
return isAddressValid and isPortValid
return false
end
function isIPv4Network(address)