luci-mod-admin-full/mini: replace Wifi with Wireless in menus
[project/luci.git] / modules / luci-mod-admin-mini / luasrc / controller / mini / system.lua
1 -- Copyright 2008 Steven Barth <steven@midlink.org>
2 -- Copyright 2008 Jo-Philipp Wich <jow@openwrt.org>
3 -- Licensed to the public under the Apache License 2.0.
4
5 module("luci.controller.mini.system", package.seeall)
6
7 function index()
8         entry({"mini", "system"}, alias("mini", "system", "index"), _("System"), 40).index = true
9         entry({"mini", "system", "index"}, cbi("mini/system", {autoapply=true}), _("General"), 1)
10         entry({"mini", "system", "passwd"}, form("mini/passwd"), _("Admin Password"), 10)
11         entry({"mini", "system", "backup"}, call("action_backup"), _("Backup / Restore"), 80)
12         entry({"mini", "system", "upgrade"}, call("action_upgrade"), _("Flash Firmware"), 90)
13         entry({"mini", "system", "reboot"}, call("action_reboot"), _("Reboot"), 100)
14 end
15
16 function action_backup()
17         local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
18         local restore_cmd = "gunzip | tar -xC/ >/dev/null 2>&1"
19         local backup_cmd  = "tar -c %s | gzip 2>/dev/null"
20         
21         local restore_fpi 
22         luci.http.setfilehandler(
23                 function(meta, chunk, eof)
24                         if not restore_fpi then
25                                 restore_fpi = io.popen(restore_cmd, "w")
26                         end
27                         if chunk then
28                                 restore_fpi:write(chunk)
29                         end
30                         if eof then
31                                 restore_fpi:close()
32                         end
33                 end
34         )
35                   
36         local upload = luci.http.formvalue("archive")
37         local backup = luci.http.formvalue("backup")
38         local reset  = reset_avail and luci.http.formvalue("reset")
39         
40         if upload and #upload > 0 then
41                 luci.template.render("mini/applyreboot")
42                 luci.sys.reboot()
43         elseif backup then
44                 local reader = ltn12_popen(backup_cmd:format(_keep_pattern()))
45                 luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
46                         luci.sys.hostname(), os.date("%Y-%m-%d")})
47                 luci.http.prepare_content("application/x-targz")
48                 luci.ltn12.pump.all(reader, luci.http.write)
49         elseif reset then
50                 luci.template.render("mini/applyreboot")
51                 luci.util.exec("mtd -r erase rootfs_data")
52         else
53                 luci.template.render("mini/backup", {reset_avail = reset_avail})
54         end
55 end
56
57 function action_reboot()
58         local reboot = luci.http.formvalue("reboot")
59         luci.template.render("mini/reboot", {reboot=reboot})
60         if reboot then
61                 luci.sys.reboot()
62         end
63 end
64
65 function action_upgrade()
66         require("luci.model.uci")
67
68         local tmpfile = "/tmp/firmware.img"
69         
70         local function image_supported()
71                 -- XXX: yay...
72                 return ( 0 == os.execute(
73                         ". /lib/functions.sh; " ..
74                         "include /lib/upgrade; " ..
75                         "platform_check_image %q >/dev/null"
76                                 % tmpfile
77                 ) )
78         end
79         
80         local function image_checksum()
81                 return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
82         end
83         
84         local function storage_size()
85                 local size = 0
86                 if nixio.fs.access("/proc/mtd") then
87                         for l in io.lines("/proc/mtd") do
88                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
89                                 if n == "linux" then
90                                         size = tonumber(s, 16)
91                                         break
92                                 end
93                         end
94                 elseif nixio.fs.access("/proc/partitions") then
95                         for l in io.lines("/proc/partitions") do
96                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
97                                 if b and n and not n:match('[0-9]') then
98                                         size = tonumber(b) * 1024
99                                         break
100                                 end
101                         end
102                 end
103                 return size
104         end
105
106
107         -- Install upload handler
108         local file
109         luci.http.setfilehandler(
110                 function(meta, chunk, eof)
111                         if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
112                                 file = io.open(tmpfile, "w")
113                         end
114                         if file and chunk then
115                                 file:write(chunk)
116                         end
117                         if file and eof then
118                                 file:close()
119                         end
120                 end
121         )
122
123
124         -- Determine state
125         local keep_avail   = true
126         local step         = tonumber(luci.http.formvalue("step") or 1)
127         local has_image    = nixio.fs.access(tmpfile)
128         local has_support  = image_supported()
129         local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
130         local has_upload   = luci.http.formvalue("image")
131         
132         -- This does the actual flashing which is invoked inside an iframe
133         -- so don't produce meaningful errors here because the the 
134         -- previous pages should arrange the stuff as required.
135         if step == 4 then
136                 if has_platform and has_image and has_support then
137                         -- Mimetype text/plain
138                         luci.http.prepare_content("text/plain")
139                         luci.http.write("Starting luci-flash...\n")
140
141                         -- Now invoke sysupgrade
142                         local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
143                         local flash = ltn12_popen("/sbin/luci-flash %s %q" %{
144                                 keepcfg and "-k %q" % _keep_pattern() or "", tmpfile
145                         })
146
147                         luci.ltn12.pump.all(flash, luci.http.write)
148
149                         -- Make sure the device is rebooted
150                         luci.sys.reboot()
151                 end
152
153
154         --
155         -- This is step 1-3, which does the user interaction and
156         -- image upload.
157         --
158
159         -- Step 1: file upload, error on unsupported image format
160         elseif not has_image or not has_support or step == 1 then
161                 -- If there is an image but user has requested step 1
162                 -- or type is not supported, then remove it.
163                 if has_image then
164                         nixio.fs.unlink(tmpfile)
165                 end
166                         
167                 luci.template.render("mini/upgrade", {
168                         step=1,
169                         bad_image=(has_image and not has_support or false),
170                         keepavail=keep_avail,
171                         supported=has_platform
172                 } )
173
174         -- Step 2: present uploaded file, show checksum, confirmation
175         elseif step == 2 then
176                 luci.template.render("mini/upgrade", {
177                         step=2,
178                         checksum=image_checksum(),
179                         filesize=nixio.fs.stat(tmpfile).size,
180                         flashsize=storage_size(),
181                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
182                 } )
183         
184         -- Step 3: load iframe which calls the actual flash procedure
185         elseif step == 3 then
186                 luci.template.render("mini/upgrade", {
187                         step=3,
188                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
189                 } )
190         end     
191 end
192
193 function _keep_pattern()
194         local kpattern = ""
195         local files = luci.model.uci.cursor():get_all("luci", "flash_keep")
196         if files then
197                 kpattern = ""
198                 for k, v in pairs(files) do
199                         if k:sub(1,1) ~= "." and nixio.fs.glob(v)() then
200                                 kpattern = kpattern .. " " ..  v
201                         end
202                 end
203         end
204         return kpattern
205 end
206
207 function ltn12_popen(command)
208
209         local fdi, fdo = nixio.pipe()
210         local pid = nixio.fork()
211
212         if pid > 0 then
213                 fdo:close()
214                 local close
215                 return function()
216                         local buffer = fdi:read(2048)
217                         local wpid, stat = nixio.waitpid(pid, "nohang")
218                         if not close and wpid and stat == "exited" then
219                                 close = true
220                         end
221
222                         if buffer and #buffer > 0 then
223                                 return buffer
224                         elseif close then
225                                 fdi:close()
226                                 return nil
227                         end
228                 end
229         elseif pid == 0 then
230                 nixio.dup(fdo, nixio.stdout)
231                 fdi:close()
232                 fdo:close()
233                 nixio.exec("/bin/sh", "-c", command)
234         end
235 end