--- Copyright 2014 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
+-- Copyright 2014-2016 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
-- Licensed to the public under the Apache License 2.0.
module("luci.tools.ddns", package.seeall)
local SYS = require "luci.sys"
local UTIL = require "luci.util"
+local function _check_certs()
+ local _, v = NXFS.glob("/etc/ssl/certs/*.crt")
+ if ( v == 0 ) then _, v = NXFS.glob("/etc/ssl/certs/*.pem") end
+ return (v > 0)
+end
+
+has_wgetssl = (SYS.call( [[which wget-ssl >/dev/null 2>&1]] ) == 0) -- and true or nil
+has_curl = (SYS.call( [[which curl >/dev/null 2>&1]] ) == 0)
+has_curlssl = (SYS.call( [[$(which curl) -V 2>&1 | grep "Protocols:" | grep -qF "https"]] ) ~= 0)
+has_curlpxy = (SYS.call( [[grep -i "all_proxy" /usr/lib/libcurl.so* >/dev/null 2>&1]] ) == 0)
+has_fetch = (SYS.call( [[which uclient-fetch >/dev/null 2>&1]] ) == 0)
+has_fetchssl = NXFS.access("/lib/libustream-ssl.so")
+has_bbwget = (SYS.call( [[$(which wget) -V 2>&1 | grep -iqF "busybox"]] ) == 0)
+has_bindhost = (SYS.call( [[which host >/dev/null 2>&1]] ) == 0)
+ or (SYS.call( [[which khost >/dev/null 2>&1]] ) == 0)
+ or (SYS.call( [[which drill >/dev/null 2>&1]] ) == 0)
+has_hostip = (SYS.call( [[which hostip >/dev/null 2>&1]] ) == 0)
+has_nslookup = (SYS.call( [[$(which nslookup) localhost 2>&1 | grep -qF "(null)"]] ) ~= 0)
+has_ipv6 = (NXFS.access("/proc/net/ipv6_route") and NXFS.access("/usr/sbin/ip6tables"))
+has_ssl = (has_wgetssl or has_curlssl or (has_fetch and has_fetchssl))
+has_proxy = (has_wgetssl or has_curlpxy or has_fetch or has_bbwget)
+has_forceip = (has_wgetssl or has_curl or has_fetch) -- only really needed for transfer
+has_dnsserver = (has_bindhost or has_hostip or has_nslookup)
+has_bindnet = (has_wgetssl or has_curl)
+has_cacerts = _check_certs()
+
-- function to calculate seconds from given interval and unit
function calc_seconds(interval, unit)
if not tonumber(interval) then
end
end
--- check if IPv6 supported by OpenWrt
-function check_ipv6()
- return NXFS.access("/proc/net/ipv6_route")
- and NXFS.access("/usr/sbin/ip6tables")
-end
-
--- check if Wget with SSL support or cURL installed
-function check_ssl()
- if (SYS.call([[ grep -i "\+ssl" /usr/bin/wget >/dev/null 2>&1 ]]) == 0) then
- return true
- else
- return NXFS.access("/usr/bin/curl")
- end
-end
-
--- check if Wget with SSL or cURL with proxy support installed
-function check_proxy()
- -- we prefere GNU Wget for communication
- if (SYS.call([[ grep -i "\+ssl" /usr/bin/wget >/dev/null 2>&1 ]]) == 0) then
- return true
-
- -- if not installed cURL must support proxy
- elseif NXFS.access("/usr/bin/curl") then
- return (SYS.call([[ grep -i all_proxy /usr/lib/libcurl.so* >/dev/null 2>&1 ]]) == 0)
-
- -- only BusyBox Wget is installed
- else
- return NXFS.access("/usr/bin/wget")
- end
-end
-
--- check if BIND host installed
-function check_bind_host()
- return NXFS.access("/usr/bin/host")
-end
-
-- convert epoch date to given format
function epoch2date(epoch, format)
if not format or #format < 2 then
local uci = UCI.cursor()
- format = uci:get("ddns", "global", "date_format") or "%F %R"
+ format = uci:get("ddns", "global", "ddns_dateformat") or "%F %R"
uci:unload("ddns")
end
format = format:gsub("%%n", "<br />") -- replace newline
-- read lastupdate from [section].update file
function get_lastupd(section)
- local uci = UCI.cursor()
- local run_dir = uci:get("ddns", "global", "run_dir") or "/var/run/ddns"
- local etime = tonumber(NXFS.readfile("%s/%s.update" % { run_dir, section } ) or 0 )
+ local uci = UCI.cursor()
+ local rdir = uci:get("ddns", "global", "ddns_rundir") or "/var/run/ddns"
+ local etime = tonumber(NXFS.readfile("%s/%s.update" % { rdir, section } ) or 0 )
uci:unload("ddns")
return etime
end
-- read PID from run file and verify if still running
function get_pid(section)
- local uci = UCI.cursor()
- local run_dir = uci:get("ddns", "global", "run_dir") or "/var/run/ddns"
- local pid = tonumber(NXFS.readfile("%s/%s.pid" % { run_dir, section } ) or 0 )
+ local uci = UCI.cursor()
+ local rdir = uci:get("ddns", "global", "ddns_rundir") or "/var/run/ddns"
+ local pid = tonumber(NXFS.readfile("%s/%s.pid" % { rdir, section } ) or 0 )
if pid > 0 and not NX.kill(pid, 0) then
pid = 0
end
end
if fexist then -- and there is a formvalue
- self:add_error(section, "invalid", errtxt)
+ self:add_error(section, "invalid", errtxt or self.title .. ": invalid")
return -- so data are invalid
-
elseif not rm_opt then -- and empty formvalue but NOT (rmempty or optional) set
- self:add_error(section, "missing", errtxt)
+ self:add_error(section, "missing", errtxt or self.title .. ": missing")
return -- so data is missing
+ elseif errtxt then
+ self:add_error(section, "invalid", errtxt)
+ return
end
+-- error ("\n option: " .. self.option ..
+-- "\n fvalue: " .. tostring(fvalue) ..
+-- "\n fexist: " .. tostring(fexist) ..
+-- "\n cvalue: " .. tostring(cvalue) ..
+-- "\n vvalue: " .. tostring(vvalue) ..
+-- "\n vexist: " .. tostring(vexist) ..
+-- "\n rm_opt: " .. tostring(rm_opt) ..
+-- "\n eq_cfg: " .. tostring(eq_cfg) ..
+-- "\n eq_def: " .. tostring(eq_def) ..
+-- "\n novld : " .. tostring(novld) ..
+-- "\n errtxt: " .. tostring(errtxt) )
end
- -- for whatever reason errtxt set and not handled above
- assert( not (errtxt and (#errtxt > 0)), "unhandled validate error" )
-- lets continue with value returned from validate
- eq_cfg = ( vvalue == cvalue ) -- update equal_config flag
- local vexist = ( vvalue and (#vvalue > 0) ) -- not "nil" and "not empty"
- local eq_def = ( vvalue == self.default ) -- equal_default flag
+ eq_cfg = ( vvalue == cvalue ) -- update equal_config flag
+ local vexist = ( vvalue and (#vvalue > 0) ) and true or false -- not "nil" and "not empty"
+ local eq_def = ( vvalue == self.default ) -- equal_default flag
- -- not forcewrite and (rmempty or optional)
- -- and (no data or equal_default)
- if not self.forcewrite and rm_opt
- and (not vexist or eq_def) then
+ -- (rmempty or optional) and (no data or equal_default)
+ if rm_opt and (not vexist or eq_def) then
if self:remove(section) then -- remove data from UCI
self.section.changed = true -- and push events
end
return
end
+ -- we should have a valid value here
+ assert (vvalue, "\n option: " .. self.option ..
+ "\n fvalue: " .. tostring(fvalue) ..
+ "\n fexist: " .. tostring(fexist) ..
+ "\n cvalue: " .. tostring(cvalue) ..
+ "\n vvalue: " .. tostring(vvalue) ..
+ "\n vexist: " .. tostring(vexist) ..
+ "\n rm_opt: " .. tostring(rm_opt) ..
+ "\n eq_cfg: " .. tostring(eq_cfg) ..
+ "\n eq_def: " .. tostring(eq_def) ..
+ "\n errtxt: " .. tostring(errtxt) )
+
-- write data to UCI; raise event only on changes
if self:write(section, vvalue) and not eq_cfg then
self.section.changed = true