modules/admin-full/luasrc/controller/admin/system.lua

   1 --[[
   2 LuCI - Lua Configuration Interface
   3
   4 Copyright 2008 Steven Barth <steven@midlink.org>
   5 Copyright 2008-2009 Jo-Philipp Wich <xm@subsignal.org>
   6
   7 Licensed under the Apache License, Version 2.0 (the "License");
   8 you may not use this file except in compliance with the License.
   9 You may obtain a copy of the License at
  10
  11         http://www.apache.org/licenses/LICENSE-2.0
  12
  13 $Id$
  14 ]]--
  15 module("luci.controller.admin.system", package.seeall)
  16
  17 function index()
  18         luci.i18n.loadc("base")
  19         local i18n = luci.i18n.translate
  20
  21         entry({"admin", "system"}, alias("admin", "system", "system"), i18n("System"), 30).index = true
  22         entry({"admin", "system", "system"}, cbi("admin_system/system"), i18n("System"), 1)
  23         entry({"admin", "system", "packages"}, call("action_packages"), i18n("Software"), 10)
  24         entry({"admin", "system", "packages", "ipkg"}, form("admin_system/ipkg"))
  25         entry({"admin", "system", "passwd"}, form("admin_system/passwd"), i18n("Admin Password"), 20)
  26         entry({"admin", "system", "sshkeys"}, form("admin_system/sshkeys"), i18n("<abbr title=\"Secure Shell\">SSH</abbr>-Keys"), 30)
  27         entry({"admin", "system", "processes"}, form("admin_system/processes"), i18n("Processes"), 45)
  28
  29         if nixio.fs.access("/etc/config/fstab") then
  30                 entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), i18n("Mount Points"), 50)
  31         end
  32
  33         if nixio.fs.access("/sys/class/leds") then
  34                 entry({"admin", "system", "leds"}, cbi("admin_system/leds"), i18n("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
  35         end
  36
  37         entry({"admin", "system", "backup"}, call("action_backup"), i18n("Backup / Restore"), 70)
  38         entry({"admin", "system", "upgrade"}, call("action_upgrade"), i18n("Flash Firmware"), 80)
  39         entry({"admin", "system", "reboot"}, call("action_reboot"), i18n("Reboot"), 90)
  40 end
  41
  42 function action_packages()
  43         local ipkg = require("luci.model.ipkg")
  44         local submit = luci.http.formvalue("submit")
  45         local changes = false
  46         local install = { }
  47         local remove  = { }
  48
  49         -- Search query
  50         local query = luci.http.formvalue("query")
  51         query = (query ~= '') and query or nil
  52
  53
  54         -- Packets to be installed
  55         local ninst = submit and luci.http.formvalue("install")
  56         local uinst = nil
  57
  58         -- Install from URL
  59         local url = luci.http.formvalue("url")
  60         if url and url ~= '' and submit then
  61                 uinst = url
  62         end
  63
  64         -- Do install
  65         if ninst then
  66                 _, install[ninst] = ipkg.install(ninst)
  67                 changes = true
  68         end
  69
  70         if uinst then
  71                 _, install[uinst] = ipkg.install(uinst)
  72                 changes = true
  73         end
  74
  75         -- Remove packets
  76         local rem = submit and luci.http.formvalue("remove")
  77         if rem then
  78                 _, remove[rem] = ipkg.remove(rem)
  79                 changes = true
  80         end
  81
  82
  83         -- Update all packets
  84         local update = luci.http.formvalue("update")
  85         if update then
  86                 _, update = ipkg.update()
  87         end
  88
  89
  90         -- Upgrade all packets
  91         local upgrade = luci.http.formvalue("upgrade")
  92         if upgrade then
  93                 _, upgrade = ipkg.upgrade()
  94         end
  95
  96
  97         luci.template.render("admin_system/packages", {
  98                 query=query, install=install, remove=remove, update=update, upgrade=upgrade
  99         })
 100
 101         -- Remove index cache
 102         if changes then
 103                 nixio.fs.unlink("/tmp/luci-indexcache")
 104         end
 105 end
 106
 107 function action_backup()
 108         local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
 109         local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
 110         local backup_cmd  = "tar -cz %s 2>/dev/null"
 111
 112         local restore_fpi
 113         luci.http.setfilehandler(
 114                 function(meta, chunk, eof)
 115                         if not restore_fpi then
 116                                 restore_fpi = io.popen(restore_cmd, "w")
 117                         end
 118                         if chunk then
 119                                 restore_fpi:write(chunk)
 120                         end
 121                         if eof then
 122                                 restore_fpi:close()
 123                         end
 124                 end
 125         )
 126
 127         local upload = luci.http.formvalue("archive")
 128         local backup = luci.http.formvalue("backup")
 129         local reset  = reset_avail and luci.http.formvalue("reset")
 130
 131         if upload and #upload > 0 then
 132                 luci.template.render("admin_system/applyreboot")
 133                 luci.sys.reboot()
 134         elseif backup then
 135                 local reader = ltn12_popen(backup_cmd:format(_keep_pattern()))
 136                 luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
 137                         luci.sys.hostname(), os.date("%Y-%m-%d")})
 138                 luci.http.prepare_content("application/x-targz")
 139                 luci.ltn12.pump.all(reader, luci.http.write)
 140         elseif reset then
 141                 luci.template.render("admin_system/applyreboot")
 142                 luci.util.exec("mtd -r erase rootfs_data")
 143         else
 144                 luci.template.render("admin_system/backup", {reset_avail = reset_avail})
 145         end
 146 end
 147
 148 function action_passwd()
 149         local p1 = luci.http.formvalue("pwd1")
 150         local p2 = luci.http.formvalue("pwd2")
 151         local stat = nil
 152
 153         if p1 or p2 then
 154                 if p1 == p2 then
 155                         stat = luci.sys.user.setpasswd("root", p1)
 156                 else
 157                         stat = 10
 158                 end
 159         end
 160
 161         luci.template.render("admin_system/passwd", {stat=stat})
 162 end
 163
 164 function action_reboot()
 165         local reboot = luci.http.formvalue("reboot")
 166         luci.template.render("admin_system/reboot", {reboot=reboot})
 167         if reboot then
 168                 luci.sys.reboot()
 169         end
 170 end
 171
 172 function action_upgrade()
 173         require("luci.model.uci")
 174
 175         local tmpfile = "/tmp/firmware.img"
 176
 177         local function image_supported()
 178                 -- XXX: yay...
 179                 return ( 0 == os.execute(
 180                         ". /etc/functions.sh; " ..
 181                         "include /lib/upgrade; " ..
 182                         "platform_check_image %q >/dev/null"
 183                                 % tmpfile
 184                 ) )
 185         end
 186
 187         local function image_checksum()
 188                 return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
 189         end
 190
 191         local function storage_size()
 192                 local size = 0
 193                 if nixio.fs.access("/proc/mtd") then
 194                         for l in io.lines("/proc/mtd") do
 195                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 196                                 if n == "linux" then
 197                                         size = tonumber(s, 16)
 198                                         break
 199                                 end
 200                         end
 201                 elseif nixio.fs.access("/proc/partitions") then
 202                         for l in io.lines("/proc/partitions") do
 203                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 204                                 if b and n and not n:match('[0-9]') then
 205                                         size = tonumber(b) * 1024
 206                                         break
 207                                 end
 208                         end
 209                 end
 210                 return size
 211         end
 212
 213
 214         -- Install upload handler
 215         local file
 216         luci.http.setfilehandler(
 217                 function(meta, chunk, eof)
 218                         if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
 219                                 file = io.open(tmpfile, "w")
 220                         end
 221                         if file and chunk then
 222                                 file:write(chunk)
 223                         end
 224                         if file and eof then
 225                                 file:close()
 226                         end
 227                 end
 228         )
 229
 230
 231         -- Determine state
 232         local keep_avail   = true
 233         local step         = tonumber(luci.http.formvalue("step") or 1)
 234         local has_image    = nixio.fs.access(tmpfile)
 235         local has_support  = image_supported()
 236         local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
 237         local has_upload   = luci.http.formvalue("image")
 238
 239         -- This does the actual flashing which is invoked inside an iframe
 240         -- so don't produce meaningful errors here because the the
 241         -- previous pages should arrange the stuff as required.
 242         if step == 4 then
 243                 if has_platform and has_image and has_support then
 244                         -- Mimetype text/plain
 245                         luci.http.prepare_content("text/plain")
 246                         luci.http.write("Starting luci-flash...\n")
 247
 248                         -- Now invoke sysupgrade
 249                         local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
 250                         local flash = ltn12_popen("/sbin/luci-flash %s %q" %{
 251                                 keepcfg and "-k %q" % _keep_pattern() or "", tmpfile
 252                         })
 253
 254                         luci.ltn12.pump.all(flash, luci.http.write)
 255
 256                         -- Make sure the device is rebooted
 257                         luci.sys.reboot()
 258                 end
 259
 260
 261         --
 262         -- This is step 1-3, which does the user interaction and
 263         -- image upload.
 264         --
 265
 266         -- Step 1: file upload, error on unsupported image format
 267         elseif not has_image or not has_support or step == 1 then
 268                 -- If there is an image but user has requested step 1
 269                 -- or type is not supported, then remove it.
 270                 if has_image then
 271                         nixio.fs.unlink(tmpfile)
 272                 end
 273
 274                 luci.template.render("admin_system/upgrade", {
 275                         step=1,
 276                         bad_image=(has_image and not has_support or false),
 277                         keepavail=keep_avail,
 278                         supported=has_platform
 279                 } )
 280
 281         -- Step 2: present uploaded file, show checksum, confirmation
 282         elseif step == 2 then
 283                 luci.template.render("admin_system/upgrade", {
 284                         step=2,
 285                         checksum=image_checksum(),
 286                         filesize=nixio.fs.stat(tmpfile).size,
 287                         flashsize=storage_size(),
 288                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 289                 } )
 290
 291         -- Step 3: load iframe which calls the actual flash procedure
 292         elseif step == 3 then
 293                 luci.template.render("admin_system/upgrade", {
 294                         step=3,
 295                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 296                 } )
 297         end
 298 end
 299
 300 function _keep_pattern()
 301         local kpattern = ""
 302         local files = luci.model.uci.cursor():get_all("luci", "flash_keep")
 303         if files then
 304                 kpattern = ""
 305                 for k, v in pairs(files) do
 306                         if k:sub(1,1) ~= "." and nixio.fs.glob(v)() then
 307                                 kpattern = kpattern .. " " ..  v
 308                         end
 309                 end
 310         end
 311         return kpattern
 312 end
 313
 314 function ltn12_popen(command)
 315
 316         local fdi, fdo = nixio.pipe()
 317         local pid = nixio.fork()
 318
 319         if pid > 0 then
 320                 fdo:close()
 321                 local close
 322                 return function()
 323                         local buffer = fdi:read(2048)
 324                         local wpid, stat = nixio.waitpid(pid, "nohang")
 325                         if not close and wpid and stat == "exited" then
 326                                 close = true
 327                         end
 328
 329                         if buffer and #buffer > 0 then
 330                                 return buffer
 331                         elseif close then
 332                                 fdi:close()
 333                                 return nil
 334                         end
 335                 end
 336         elseif pid == 0 then
 337                 nixio.dup(fdo, nixio.stdout)
 338                 fdi:close()
 339                 fdo:close()
 340                 nixio.exec("/bin/sh", "-c", command)
 341         end
 342 end