luci-app-olsr: handle empty result for non-status tables
[oweals/luci.git] / modules / luci-mod-network / luasrc / controller / admin / network.lua
1 -- Copyright 2008 Steven Barth <steven@midlink.org>
2 -- Copyright 2011-2018 Jo-Philipp Wich <jo@mein.io>
3 -- Licensed to the public under the Apache License 2.0.
4
5 module("luci.controller.admin.network", package.seeall)
6
7 function index()
8         local uci = require("luci.model.uci").cursor()
9         local page
10
11 --      if page.inreq then
12                 local has_switch = false
13
14                 uci:foreach("network", "switch",
15                         function(s)
16                                 has_switch = true
17                                 return false
18                         end)
19
20                 if has_switch then
21                         page  = node("admin", "network", "vlan")
22                         page.target = cbi("admin_network/vlan")
23                         page.title  = _("Switch")
24                         page.order  = 20
25
26                         page = entry({"admin", "network", "switch_status"}, call("switch_status"), nil)
27                         page.leaf = true
28                 end
29
30
31                 local has_wifi = false
32
33                 uci:foreach("wireless", "wifi-device",
34                         function(s)
35                                 has_wifi = true
36                                 return false
37                         end)
38
39                 if has_wifi then
40                         page = entry({"admin", "network", "wireless_join"}, post("wifi_join"), nil)
41                         page.leaf = true
42
43                         page = entry({"admin", "network", "wireless_add"}, post("wifi_add"), nil)
44                         page.leaf = true
45
46                         page = entry({"admin", "network", "wireless_status"}, call("wifi_status"), nil)
47                         page.leaf = true
48
49                         page = entry({"admin", "network", "wireless_reconnect"}, post("wifi_reconnect"), nil)
50                         page.leaf = true
51
52                         page = entry({"admin", "network", "wireless_scan_trigger"}, post("wifi_scan_trigger"), nil)
53                         page.leaf = true
54
55                         page = entry({"admin", "network", "wireless_scan_results"}, call("wifi_scan_results"), nil)
56                         page.leaf = true
57
58                         page = entry({"admin", "network", "wireless"}, arcombine(cbi("admin_network/wifi_overview"), cbi("admin_network/wifi")), _("Wireless"), 15)
59                         page.leaf = true
60                         page.subindex = true
61
62                         if page.inreq then
63                                 local wdev
64                                 local net = require "luci.model.network".init(uci)
65                                 for _, wdev in ipairs(net:get_wifidevs()) do
66                                         local wnet
67                                         for _, wnet in ipairs(wdev:get_wifinets()) do
68                                                 entry(
69                                                         {"admin", "network", "wireless", wnet:id()},
70                                                         alias("admin", "network", "wireless"),
71                                                         wdev:name() .. ": " .. wnet:shortname()
72                                                 )
73                                         end
74                                 end
75                         end
76                 end
77
78
79                 page = entry({"admin", "network", "iface_add"}, form("admin_network/iface_add"), nil)
80                 page.leaf = true
81
82                 page = entry({"admin", "network", "iface_status"}, call("iface_status"), nil)
83                 page.leaf = true
84
85                 page = entry({"admin", "network", "iface_reconnect"}, post("iface_reconnect"), nil)
86                 page.leaf = true
87
88                 page = entry({"admin", "network", "network"}, arcombine(cbi("admin_network/network"), cbi("admin_network/ifaces")), _("Interfaces"), 10)
89                 page.leaf   = true
90                 page.subindex = true
91
92                 if page.inreq then
93                         uci:foreach("network", "interface",
94                                 function (section)
95                                         local ifc = section[".name"]
96                                         if ifc ~= "loopback" then
97                                                 entry({"admin", "network", "network", ifc},
98                                                 true, ifc:upper())
99                                         end
100                                 end)
101                 end
102
103
104                 if nixio.fs.access("/etc/config/dhcp") then
105                         page = node("admin", "network", "dhcp")
106                         page.target = view("network/dhcp")
107                         page.title  = _("DHCP and DNS")
108                         page.order  = 30
109
110                         page = node("admin", "network", "hosts")
111                         page.target = view("network/hosts")
112                         page.title  = _("Hostnames")
113                         page.order  = 40
114                 end
115
116                 page  = node("admin", "network", "routes")
117                 page.target = view("network/routes")
118                 page.title  = _("Static Routes")
119                 page.order  = 50
120
121                 page = node("admin", "network", "diagnostics")
122                 page.target = template("admin_network/diagnostics")
123                 page.title  = _("Diagnostics")
124                 page.order  = 60
125
126                 page = entry({"admin", "network", "diag_ping"}, post("diag_ping"), nil)
127                 page.leaf = true
128
129                 page = entry({"admin", "network", "diag_nslookup"}, post("diag_nslookup"), nil)
130                 page.leaf = true
131
132                 page = entry({"admin", "network", "diag_traceroute"}, post("diag_traceroute"), nil)
133                 page.leaf = true
134
135                 page = entry({"admin", "network", "diag_ping6"}, post("diag_ping6"), nil)
136                 page.leaf = true
137
138                 page = entry({"admin", "network", "diag_traceroute6"}, post("diag_traceroute6"), nil)
139                 page.leaf = true
140 --      end
141 end
142
143 function wifi_join()
144         local tpl  = require "luci.template"
145         local http = require "luci.http"
146         local dev  = http.formvalue("device")
147         local ssid = http.formvalue("join")
148
149         if dev and ssid then
150                 local cancel = (http.formvalue("cancel") or http.formvalue("cbi.cancel"))
151                 if not cancel then
152                         local cbi = require "luci.cbi"
153                         local map = luci.cbi.load("admin_network/wifi_add")[1]
154
155                         if map:parse() ~= cbi.FORM_DONE then
156                                 tpl.render("header")
157                                 map:render()
158                                 tpl.render("footer")
159                         end
160
161                         return
162                 end
163         end
164
165         tpl.render("admin_network/wifi_join")
166 end
167
168 function wifi_add()
169         local dev = luci.http.formvalue("device")
170         local ntm = require "luci.model.network".init()
171
172         dev = dev and ntm:get_wifidev(dev)
173
174         if dev then
175                 local net = dev:add_wifinet({
176                         mode       = "ap",
177                         ssid       = "OpenWrt",
178                         encryption = "none",
179                         disabled   = 1
180                 })
181
182                 ntm:save("wireless")
183                 luci.http.redirect(net:adminlink())
184         end
185 end
186
187 function iface_status(ifaces)
188         local netm = require "luci.model.network".init()
189         local rv   = { }
190
191         local iface
192         for iface in ifaces:gmatch("[%w%.%-_]+") do
193                 local net = netm:get_network(iface)
194                 local device = net and net:get_interface()
195                 if device then
196                         local data = {
197                                 id         = iface,
198                                 desc       = net:get_i18n(),
199                                 proto      = net:proto(),
200                                 uptime     = net:uptime(),
201                                 gwaddr     = net:gwaddr(),
202                                 ipaddrs    = net:ipaddrs(),
203                                 ip6addrs   = net:ip6addrs(),
204                                 dnsaddrs   = net:dnsaddrs(),
205                                 ip6prefix  = net:ip6prefix(),
206                                 errors     = net:errors(),
207                                 name       = device:shortname(),
208                                 type       = device:type(),
209                                 typename   = device:get_type_i18n(),
210                                 ifname     = device:name(),
211                                 macaddr    = device:mac(),
212                                 is_up      = net:is_up() and device:is_up(),
213                                 is_alias   = net:is_alias(),
214                                 is_dynamic = net:is_dynamic(),
215                                 is_auto    = net:is_auto(),
216                                 rx_bytes   = device:rx_bytes(),
217                                 tx_bytes   = device:tx_bytes(),
218                                 rx_packets = device:rx_packets(),
219                                 tx_packets = device:tx_packets(),
220
221                                 subdevices = { }
222                         }
223
224                         for _, device in ipairs(net:get_interfaces() or {}) do
225                                 data.subdevices[#data.subdevices+1] = {
226                                         name       = device:shortname(),
227                                         type       = device:type(),
228                                         typename   = device:get_type_i18n(),
229                                         ifname     = device:name(),
230                                         macaddr    = device:mac(),
231                                         is_up      = device:is_up(),
232                                         rx_bytes   = device:rx_bytes(),
233                                         tx_bytes   = device:tx_bytes(),
234                                         rx_packets = device:rx_packets(),
235                                         tx_packets = device:tx_packets(),
236                                 }
237                         end
238
239                         rv[#rv+1] = data
240                 else
241                         rv[#rv+1] = {
242                                 id   = iface,
243                                 name = iface,
244                                 type = "ethernet"
245                         }
246                 end
247         end
248
249         if #rv > 0 then
250                 luci.http.prepare_content("application/json")
251                 luci.http.write_json(rv)
252                 return
253         end
254
255         luci.http.status(404, "No such device")
256 end
257
258 function iface_reconnect(iface)
259         local netmd = require "luci.model.network".init()
260         local net = netmd:get_network(iface)
261         if net then
262                 luci.sys.call("env -i /sbin/ifup %s >/dev/null 2>/dev/null"
263                         % luci.util.shellquote(iface))
264                 luci.http.status(200, "Reconnected")
265                 return
266         end
267
268         luci.http.status(404, "No such interface")
269 end
270
271 function wifi_status(devs)
272         local s    = require "luci.tools.status"
273         local rv   = { }
274
275         if type(devs) == "string" then
276                 local dev
277                 for dev in devs:gmatch("[%w%.%-]+") do
278                         rv[#rv+1] = s.wifi_network(dev)
279                 end
280         end
281
282         if #rv > 0 then
283                 luci.http.prepare_content("application/json")
284                 luci.http.write_json(rv)
285                 return
286         end
287
288         luci.http.status(404, "No such device")
289 end
290
291 function wifi_reconnect(radio)
292         local rc = luci.sys.call("env -i /sbin/wifi up %s" % luci.util.shellquote(radio))
293
294         if rc == 0 then
295                 luci.http.status(200, "Reconnected")
296         else
297                 luci.http.status(500, "Error")
298         end
299 end
300
301 local function _wifi_get_scan_results(cache_key)
302         local results = luci.util.ubus("session", "get", {
303                 ubus_rpc_session = luci.model.uci:get_session_id(),
304                 keys = { cache_key }
305         })
306
307         if type(results) == "table" and
308            type(results.values) == "table" and
309            type(results.values[cache_key]) == "table"
310         then
311                 return results.values[cache_key]
312         end
313
314         return nil
315 end
316
317 function wifi_scan_trigger(radio, update)
318         local iw = radio and luci.sys.wifi.getiwinfo(radio)
319
320         if not iw then
321                 luci.http.status(404, "No such radio device")
322                 return
323         end
324
325         luci.http.status(204, "Scan scheduled")
326
327         if nixio.fork() == 0 then
328                 io.stderr:close()
329                 io.stdout:close()
330
331                 local _, bss
332                 local data, bssids = { }, { }
333                 local cache_key = "scan_%s" % radio
334
335                 luci.util.ubus("session", "set", {
336                         ubus_rpc_session = luci.model.uci:get_session_id(),
337                         values = { [cache_key] = nil }
338                 })
339
340                 for _, bss in ipairs(iw.scanlist or { }) do
341                         data[_] = bss
342                         bssids[bss.bssid] = bss
343                 end
344
345                 if update then
346                         local cached = _wifi_get_scan_results(cache_key)
347                         if cached then
348                                 for _, bss in ipairs(cached) do
349                                         if not bssids[bss.bssid] then
350                                                 bss.stale = true
351                                                 data[#data + 1] = bss
352                                         end
353                                 end
354                         end
355                 end
356
357                 luci.util.ubus("session", "set", {
358                         ubus_rpc_session = luci.model.uci:get_session_id(),
359                         values = { [cache_key] = data }
360                 })
361         end
362 end
363
364 function wifi_scan_results(radio)
365         local results = radio and _wifi_get_scan_results("scan_%s" % radio)
366
367         if results then
368                 luci.http.prepare_content("application/json")
369                 luci.http.write_json(results)
370         else
371                 luci.http.status(404, "No wireless scan results")
372         end
373 end
374
375 function switch_status(switches)
376         local s = require "luci.tools.status"
377
378         luci.http.prepare_content("application/json")
379         luci.http.write_json(s.switch_status(switches))
380 end
381
382 function diag_command(cmd, addr)
383         if addr and addr:match("^[a-zA-Z0-9%-%.:_]+$") then
384                 luci.http.prepare_content("text/plain")
385
386                 local util = io.popen(cmd % luci.util.shellquote(addr))
387                 if util then
388                         while true do
389                                 local ln = util:read("*l")
390                                 if not ln then break end
391                                 luci.http.write(ln)
392                                 luci.http.write("\n")
393                         end
394
395                         util:close()
396                 end
397
398                 return
399         end
400
401         luci.http.status(500, "Bad address")
402 end
403
404 function diag_ping(addr)
405         diag_command("ping -c 5 -W 1 %s 2>&1", addr)
406 end
407
408 function diag_traceroute(addr)
409         diag_command("traceroute -q 1 -w 1 -n %s 2>&1", addr)
410 end
411
412 function diag_nslookup(addr)
413         diag_command("nslookup %s 2>&1", addr)
414 end
415
416 function diag_ping6(addr)
417         diag_command("ping6 -c 5 %s 2>&1", addr)
418 end
419
420 function diag_traceroute6(addr)
421         diag_command("traceroute6 -q 1 -w 2 -n %s 2>&1", addr)
422 end