luci-base: datatypes: add cidr, ipnet validator type

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

diff --git a/modules/luci-base/luasrc/cbi/datatypes.lua b/modules/luci-base/luasrc/cbi/datatypes.lua
index 0a180d3..df23aaf 100644 (file)
--- a/modules/luci-base/luasrc/cbi/datatypes.lua
+++ b/modules/luci-base/luasrc/cbi/datatypes.lua
@@ -1,4 +1,5 @@
 -- Copyright 2010 Jo-Philipp Wich <jow@openwrt.org>
+-- Copyright 2017 Dan Luedtke <mail@danrl.com>
 -- Licensed to the public under the Apache License 2.0.
 
 local fs = require "nixio.fs"
@@ -131,38 +132,48 @@ function ip6prefix(val)
        return ( val and val >= 0 and val <= 128 )
 end
 
-function ipmask(val)
-       return ipmask4(val) or ipmask6(val)
+function cidr4(val)
+       local ip, mask = val:match("^([^/]+)/([^/]+)$")
+
+       return ip4addr(ip) and ip4prefix(mask)
 end
 
-function ipmask4(val)
+function cidr6(val)
        local ip, mask = val:match("^([^/]+)/([^/]+)$")
-       local bits = tonumber(mask)
 
-       if bits and (bits < 0 or bits > 32) then
-               return false
-       end
+       return ip6addr(ip) and ip6prefix(mask)
+end
 
-       if not bits and mask and not ip4addr(mask) then
-               return false
-       end
+function ipnet4(val)
+       local ip, mask = val:match("^([^/]+)/([^/]+)$")
 
-       return ip4addr(ip or val)
+       return ip4addr(ip) and ip4addr(mask)
 end
 
-function ipmask6(val)
+function ipnet6(val)
        local ip, mask = val:match("^([^/]+)/([^/]+)$")
-       local bits = tonumber(mask)
 
-       if bits and (bits < 0 or bits > 128) then
-               return false
-       end
+       return ip6addr(ip) and ip6addr(mask)
+end
 
-       if not bits and mask and not ip6addr(mask) then
-               return false
+function ipmask(val)
+       return ipmask4(val) or ipmask6(val)
+end
+
+function ipmask4(val)
+       return cidr4(val) or ipnet4(val) or ip4addr(val)
+end
+
+function ipmask6(val)
+       return cidr6(val) or ipnet6(val) or ip6addr(val)
+end
+
+function ip6hostid(val)
+       if val and val:match("^[a-fA-F0-9:]+$") and (#val > 2) then
+               return (ip6addr("2001:db8:0:0" .. val) or ip6addr("2001:db8:0:0:" .. val))
        end
 
-       return ip6addr(ip or val)
+       return false
 end
 
 function port(val)
@@ -268,17 +279,32 @@ function wepkey(val)
 end
 
 function hexstring(val)
-        if val then
-                return (val:match("^[a-fA-F0-9]+$") ~= nil)
-        end
-        return false
+       if val then
+               return (val:match("^[a-fA-F0-9]+$") ~= nil)
+       end
+       return false
+end
+
+function hex(val, maxbytes)
+       maxbytes = tonumber(maxbytes)
+       if val and maxbytes ~= nil then
+               return ((val:match("^0x[a-fA-F0-9]+$") ~= nil) and (#val <= 2 + maxbytes * 2))
+       end
+       return false
+end
+
+function base64(val)
+       if val then
+               return (val:match("^[a-zA-Z0-9/+]+=?=?$") ~= nil) and (math.fmod(#val, 4) == 0)
+       end
+       return false
 end
 
 function string(val)
        return true             -- Everything qualifies as valid string
 end
 
-function directory( val, seen )
+function directory(val, seen)
        local s = fs.stat(val)
        seen = seen or { }
 
@@ -294,7 +320,7 @@ function directory( val, seen )
        return false
 end
 
-function file( val, seen )
+function file(val, seen)
        local s = fs.stat(val)
        seen = seen or { }
 
@@ -310,7 +336,7 @@ function file( val, seen )
        return false
 end
 
-function device( val, seen )
+function device(val, seen)
        local s = fs.stat(val)
        seen = seen or { }
 
@@ -445,4 +471,3 @@ function dateyyyymmdd(val)
        end
        return false
 end
-