1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
|
-- Copyright 2008 Steven Barth <steven@midlink.org>
-- Copyright 2008 Jo-Philipp Wich <jow@openwrt.org>
-- Copyright 2013 Manuel Munz <freifunk at somakoma dot de>
-- Copyright 2014-2016 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
-- Licensed to the public under the Apache License 2.0.
module("luci.controller.ddns", package.seeall)
local NX = require "nixio"
local NXFS = require "nixio.fs"
local DISP = require "luci.dispatcher"
local HTTP = require "luci.http"
local I18N = require "luci.i18n" -- not globally avalible here
local IPKG = require "luci.model.ipkg"
local SYS = require "luci.sys"
local UCI = require "luci.model.uci"
local UTIL = require "luci.util"
local DDNS = require "luci.tools.ddns" -- ddns multiused functions
luci_helper = "/usr/lib/ddns/dynamic_dns_lucihelper.sh"
local srv_name = "ddns-scripts"
local srv_ver_min = "2.7.6" -- minimum version of service required
local srv_ver_cmd = luci_helper .. [[ -V | awk {'print $2'}]]
local app_name = "luci-app-ddns"
local app_title = "Dynamic DNS"
local app_version = "2.4.8-1"
function index()
local nxfs = require "nixio.fs" -- global definitions not available
local sys = require "luci.sys" -- in function index()
local ddns = require "luci.tools.ddns" -- ddns multiused functions
local muci = require "luci.model.uci"
-- no config create an empty one
if not nxfs.access("/etc/config/ddns") then
nxfs.writefile("/etc/config/ddns", "")
end
-- preset new option "lookup_host" if not already defined
local uci = muci.cursor()
local commit = false
uci:foreach("ddns", "service", function (s)
if not s["lookup_host"] and s["domain"] then
uci:set("ddns", s[".name"], "lookup_host", s["domain"])
commit = true
end
end)
if commit then uci:commit("ddns") end
uci:unload("ddns")
entry( {"admin", "services", "ddns"}, cbi("ddns/overview"), _("Dynamic DNS"), 59)
entry( {"admin", "services", "ddns", "detail"}, cbi("ddns/detail"), nil ).leaf = true
entry( {"admin", "services", "ddns", "hints"}, cbi("ddns/hints",
{hideapplybtn=true, hidesavebtn=true, hideresetbtn=true}), nil ).leaf = true
entry( {"admin", "services", "ddns", "global"}, cbi("ddns/global"), nil ).leaf = true
entry( {"admin", "services", "ddns", "logview"}, call("logread") ).leaf = true
entry( {"admin", "services", "ddns", "startstop"}, post("startstop") ).leaf = true
entry( {"admin", "services", "ddns", "status"}, call("status") ).leaf = true
end
-- Application specific information functions
function app_description()
return I18N.translate("Dynamic DNS allows that your router can be reached with " ..
"a fixed hostname while having a dynamically changing IP address.")
.. [[<br />]]
.. I18N.translate("OpenWrt Wiki") .. ": "
.. [[<a href="http://wiki.openwrt.org/doc/howto/ddns.client" target="_blank">]]
.. I18N.translate("DDNS Client Documentation") .. [[</a>]]
.. " --- "
.. [[<a href="http://wiki.openwrt.org/doc/uci/ddns" target="_blank">]]
.. I18N.translate("DDNS Client Configuration") .. [[</a>]]
end
function app_title_back()
return [[<a href="]]
.. DISP.build_url("admin", "services", "ddns")
.. [[">]]
.. I18N.translate(app_title)
.. [[</a>]]
end
-- Standardized application/service functions
function app_title_main()
return [[<a href="javascript:alert(']]
.. I18N.translate("Version Information")
.. [[\n\n]] .. app_name
.. [[\n\t]] .. I18N.translate("Version") .. [[:\t]] .. app_version
.. [[\n\n]] .. srv_name .. [[ ]] .. I18N.translate("required") .. [[:]]
.. [[\n\t]] .. I18N.translate("Version") .. [[:\t]]
.. srv_ver_min .. [[ ]] .. I18N.translate("or higher")
.. [[\n\n]] .. srv_name .. [[ ]] .. I18N.translate("installed") .. [[:]]
.. [[\n\t]] .. I18N.translate("Version") .. [[:\t]]
.. (service_version() or I18N.translate("NOT installed"))
.. [[\n\n]]
.. [[')">]]
.. I18N.translate(app_title)
.. [[</a>]]
end
function service_version()
local ver = nil
ver = UTIL.exec(srv_ver_cmd)
if #ver > 0 then return ver end
IPKG.list_installed(srv_name, function(n, v, d)
if v and (#v > 0) then ver = v end
end
)
return ver
end
function service_ok()
return IPKG.compare_versions((service_version() or "0"), ">=", srv_ver_min)
end
-- internal function to read all sections status and return data array
local function _get_status()
local uci = UCI.cursor()
local service = SYS.init.enabled("ddns") and 1 or 0
local url_start = DISP.build_url("admin", "system", "startup")
local data = {} -- Array to transfer data to javascript
data[#data+1] = {
enabled = service, -- service enabled
url_up = url_start, -- link to enable DDS (System-Startup)
}
uci:foreach("ddns", "service", function (s)
-- Get section we are looking at
-- and enabled state
local section = s[".name"]
local enabled = tonumber(s["enabled"]) or 0
local datelast = "_empty_" -- formatted date of last update
local datenext = "_empty_" -- formatted date of next update
-- get force seconds
local force_seconds = DDNS.calc_seconds(
tonumber(s["force_interval"]) or 72 ,
s["force_unit"] or "hours" )
-- get/validate pid and last update
local pid = DDNS.get_pid(section)
local uptime = SYS.uptime()
local lasttime = DDNS.get_lastupd(section)
if lasttime > uptime then -- /var might not be linked to /tmp
lasttime = 0 -- and/or not cleared on reboot
end
-- no last update happen
if lasttime == 0 then
datelast = "_never_"
-- we read last update
else
-- calc last update
-- sys.epoch - sys uptime + lastupdate(uptime)
local epoch = os.time() - uptime + lasttime
-- use linux date to convert epoch
datelast = DDNS.epoch2date(epoch)
-- calc and fill next update
datenext = DDNS.epoch2date(epoch + force_seconds)
end
-- process running but update needs to happen
-- problems if force_seconds > uptime
force_seconds = (force_seconds > uptime) and uptime or force_seconds
if pid > 0 and ( lasttime + force_seconds - uptime ) <= 0 then
datenext = "_verify_"
-- run once
elseif force_seconds == 0 then
datenext = "_runonce_"
-- no process running and NOT enabled
elseif pid == 0 and enabled == 0 then
datenext = "_disabled_"
-- no process running and enabled
elseif pid == 0 and enabled ~= 0 then
datenext = "_stopped_"
end
-- get/set monitored interface and IP version
local iface = s["interface"] or "_nonet_"
local use_ipv6 = tonumber(s["use_ipv6"]) or 0
if iface ~= "_nonet_" then
local ipv = (use_ipv6 == 1) and "IPv6" or "IPv4"
iface = ipv .. " / " .. iface
end
-- try to get registered IP
local lookup_host = s["lookup_host"] or "_nolookup_"
local dnsserver = s["dns_server"] or ""
local force_ipversion = tonumber(s["force_ipversion"] or 0)
local force_dnstcp = tonumber(s["force_dnstcp"] or 0)
local is_glue = tonumber(s["is_glue"] or 0)
local command = luci_helper .. [[ -]]
if (use_ipv6 == 1) then command = command .. [[6]] end
if (force_ipversion == 1) then command = command .. [[f]] end
if (force_dnstcp == 1) then command = command .. [[t]] end
if (is_glue == 1) then command = command .. [[g]] end
command = command .. [[l ]] .. lookup_host
if (#dnsserver > 0) then command = command .. [[ -d ]] .. dnsserver end
command = command .. [[ -- get_registered_ip]]
local reg_ip = SYS.exec(command)
if reg_ip == "" then
reg_ip = "_nodata_"
end
-- fill transfer array
data[#data+1] = {
section = section,
enabled = enabled,
iface = iface,
lookup = lookup_host,
reg_ip = reg_ip,
pid = pid,
datelast = datelast,
datenext = datenext
}
end)
uci:unload("ddns")
return data
end
-- called by XHR.get from detail_logview.htm
function logread(section)
-- read application settings
local uci = UCI.cursor()
local ldir = uci:get("ddns", "global", "ddns_logdir") or "/var/log/ddns"
local lfile = ldir .. "/" .. section .. ".log"
local ldata = NXFS.readfile(lfile)
if not ldata or #ldata == 0 then
ldata="_nodata_"
end
uci:unload("ddns")
HTTP.write(ldata)
end
-- called by XHR.get from overview_status.htm
function startstop(section, enabled)
local uci = UCI.cursor()
local pid = DDNS.get_pid(section)
local data = {} -- Array to transfer data to javascript
-- if process running we want to stop and return
if pid > 0 then
local tmp = NX.kill(pid, 15) -- terminate
NX.nanosleep(2) -- 2 second "show time"
-- status changed so return full status
data = _get_status()
HTTP.prepare_content("application/json")
HTTP.write_json(data)
return
end
-- read uncommitted changes
-- we don't save and commit data from other section or other options
-- only enabled will be done
local exec = true
local changed = uci:changes("ddns")
for k_config, v_section in pairs(changed) do
-- security check because uci.changes only gets our config
if k_config ~= "ddns" then
exec = false
break
end
for k_section, v_option in pairs(v_section) do
-- check if only section of button was changed
if k_section ~= section then
exec = false
break
end
for k_option, v_value in pairs(v_option) do
-- check if only enabled was changed
if k_option ~= "enabled" then
exec = false
break
end
end
end
end
-- we can not execute because other
-- uncommitted changes pending, so exit here
if not exec then
HTTP.write("_uncommitted_")
return
end
-- save enable state
uci:set("ddns", section, "enabled", ( (enabled == "true") and "1" or "0") )
uci:save("ddns")
uci:commit("ddns")
uci:unload("ddns")
-- start ddns-updater for section
local command = luci_helper .. [[ -S ]] .. section .. [[ -- start]]
os.execute(command)
NX.nanosleep(3) -- 3 seconds "show time"
-- status changed so return full status
data = _get_status()
HTTP.prepare_content("application/json")
HTTP.write_json(data)
end
-- called by XHR.poll from overview_status.htm
function status()
local data = _get_status()
HTTP.prepare_content("application/json")
HTTP.write_json(data)
end
|