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 2008-2011 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
  16 module("luci.controller.admin.system", package.seeall)
  17
  18 function index()
  19         entry({"admin", "system"}, alias("admin", "system", "system"), _("System"), 30).index = true
  20         entry({"admin", "system", "system"}, cbi("admin_system/system"), _("System"), 1)
  21         entry({"admin", "system", "clock_status"}, call("action_clock_status"))
  22
  23         entry({"admin", "system", "admin"}, cbi("admin_system/admin"), _("Administration"), 2)
  24
  25         if nixio.fs.access("/bin/opkg") then
  26                 entry({"admin", "system", "packages"}, call("action_packages"), _("Software"), 10)
  27                 entry({"admin", "system", "packages", "ipkg"}, form("admin_system/ipkg"))
  28         end
  29
  30         entry({"admin", "system", "startup"}, form("admin_system/startup"), _("Startup"), 45)
  31         entry({"admin", "system", "crontab"}, form("admin_system/crontab"), _("Scheduled Tasks"), 46)
  32
  33         if nixio.fs.access("/etc/config/fstab") then
  34                 entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), _("Mount Points"), 50)
  35                 entry({"admin", "system", "fstab", "mount"}, cbi("admin_system/fstab/mount"), nil).leaf = true
  36                 entry({"admin", "system", "fstab", "swap"},  cbi("admin_system/fstab/swap"),  nil).leaf = true
  37         end
  38
  39         if nixio.fs.access("/sys/class/leds") then
  40                 entry({"admin", "system", "leds"}, cbi("admin_system/leds"), _("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
  41         end
  42
  43         entry({"admin", "system", "flashops"}, call("action_flashops"), _("Backup / Flash Firmware"), 70)
  44         entry({"admin", "system", "flashops", "backupfiles"}, form("admin_system/backupfiles"))
  45
  46         entry({"admin", "system", "reboot"}, call("action_reboot"), _("Reboot"), 90)
  47 end
  48
  49 function action_clock_status()
  50         local set = tonumber(luci.http.formvalue("set"))
  51         if set ~= nil and set > 0 then
  52                 local date = os.date("*t", set)
  53                 if date then
  54                         -- prevent session timeoutby updating mtime
  55                         nixio.fs.utimes(luci.sauth.sessionpath .. "/" .. luci.dispatcher.context.authsession, set, set)
  56
  57                         luci.sys.call("date -s '%04d-%02d-%02d %02d:%02d:%02d'" %{
  58                                 date.year, date.month, date.day, date.hour, date.min, date.sec
  59                         })
  60                 end
  61         end
  62
  63         luci.http.prepare_content("application/json")
  64         luci.http.write_json({ timestring = os.date("%c") })
  65 end
  66
  67 function action_packages()
  68         local ipkg = require("luci.model.ipkg")
  69         local submit = luci.http.formvalue("submit")
  70         local changes = false
  71         local install = { }
  72         local remove  = { }
  73         local stdout  = { "" }
  74         local stderr  = { "" }
  75         local out, err
  76
  77         -- Display
  78         local display = luci.http.formvalue("display") or "installed"
  79
  80         -- Letter
  81         local letter = string.byte(luci.http.formvalue("letter") or "A", 1)
  82         letter = (letter == 35 or (letter >= 65 and letter <= 90)) and letter or 65
  83
  84         -- Search query
  85         local query = luci.http.formvalue("query")
  86         query = (query ~= '') and query or nil
  87
  88
  89         -- Packets to be installed
  90         local ninst = submit and luci.http.formvalue("install")
  91         local uinst = nil
  92
  93         -- Install from URL
  94         local url = luci.http.formvalue("url")
  95         if url and url ~= '' and submit then
  96                 uinst = url
  97         end
  98
  99         -- Do install
 100         if ninst then
 101                 install[ninst], out, err = ipkg.install(ninst)
 102                 stdout[#stdout+1] = out
 103                 stderr[#stderr+1] = err
 104                 changes = true
 105         end
 106
 107         if uinst then
 108                 local pkg
 109                 for pkg in luci.util.imatch(uinst) do
 110                         install[uinst], out, err = ipkg.install(pkg)
 111                         stdout[#stdout+1] = out
 112                         stderr[#stderr+1] = err
 113                         changes = true
 114                 end
 115         end
 116
 117         -- Remove packets
 118         local rem = submit and luci.http.formvalue("remove")
 119         if rem then
 120                 remove[rem], out, err = ipkg.remove(rem)
 121                 stdout[#stdout+1] = out
 122                 stderr[#stderr+1] = err
 123                 changes = true
 124         end
 125
 126
 127         -- Update all packets
 128         local update = luci.http.formvalue("update")
 129         if update then
 130                 update, out, err = ipkg.update()
 131                 stdout[#stdout+1] = out
 132                 stderr[#stderr+1] = err
 133         end
 134
 135
 136         -- Upgrade all packets
 137         local upgrade = luci.http.formvalue("upgrade")
 138         if upgrade then
 139                 upgrade, out, err = ipkg.upgrade()
 140                 stdout[#stdout+1] = out
 141                 stderr[#stderr+1] = err
 142         end
 143
 144
 145         -- List state
 146         local no_lists = true
 147         local old_lists = false
 148         local tmp = nixio.fs.dir("/var/opkg-lists/")
 149         if tmp then
 150                 for tmp in tmp do
 151                         no_lists = false
 152                         tmp = nixio.fs.stat("/var/opkg-lists/"..tmp)
 153                         if tmp and tmp.mtime < (os.time() - (24 * 60 * 60)) then
 154                                 old_lists = true
 155                                 break
 156                         end
 157                 end
 158         end
 159
 160
 161         luci.template.render("admin_system/packages", {
 162                 display   = display,
 163                 letter    = letter,
 164                 query     = query,
 165                 install   = install,
 166                 remove    = remove,
 167                 update    = update,
 168                 upgrade   = upgrade,
 169                 no_lists  = no_lists,
 170                 old_lists = old_lists,
 171                 stdout    = table.concat(stdout, ""),
 172                 stderr    = table.concat(stderr, "")
 173         })
 174
 175         -- Remove index cache
 176         if changes then
 177                 nixio.fs.unlink("/tmp/luci-indexcache")
 178         end
 179 end
 180
 181 function action_flashops()
 182         local sys = require "luci.sys"
 183         local fs  = require "luci.fs"
 184
 185         local upgrade_avail = nixio.fs.access("/lib/upgrade/platform.sh")
 186         local reset_avail   = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
 187
 188         local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
 189         local backup_cmd  = "sysupgrade --create-backup - 2>/dev/null"
 190         local image_tmp   = "/tmp/firmware.img"
 191
 192         local function image_supported()
 193                 -- XXX: yay...
 194                 return ( 0 == os.execute(
 195                         ". /etc/functions.sh; " ..
 196                         "include /lib/upgrade; " ..
 197                         "platform_check_image %q >/dev/null"
 198                                 % image_tmp
 199                 ) )
 200         end
 201
 202         local function image_checksum()
 203                 return (luci.sys.exec("md5sum %q" % image_tmp):match("^([^%s]+)"))
 204         end
 205
 206         local function storage_size()
 207                 local size = 0
 208                 if nixio.fs.access("/proc/mtd") then
 209                         for l in io.lines("/proc/mtd") do
 210                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 211                                 if n == "linux" or n == "firmware" then
 212                                         size = tonumber(s, 16)
 213                                         break
 214                                 end
 215                         end
 216                 elseif nixio.fs.access("/proc/partitions") then
 217                         for l in io.lines("/proc/partitions") do
 218                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 219                                 if b and n and not n:match('[0-9]') then
 220                                         size = tonumber(b) * 1024
 221                                         break
 222                                 end
 223                         end
 224                 end
 225                 return size
 226         end
 227
 228
 229         local fp
 230         luci.http.setfilehandler(
 231                 function(meta, chunk, eof)
 232                         if not fp then
 233                                 if meta and meta.name == "image" then
 234                                         fp = io.open(image_tmp, "w")
 235                                 else
 236                                         fp = io.popen(restore_cmd, "w")
 237                                 end
 238                         end
 239                         if chunk then
 240                                 fp:write(chunk)
 241                         end
 242                         if eof then
 243                                 fp:close()
 244                         end
 245                 end
 246         )
 247
 248         if luci.http.formvalue("backup") then
 249                 --
 250                 -- Assemble file list, generate backup
 251                 --
 252                 local reader = ltn12_popen(backup_cmd)
 253                 luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
 254                         luci.sys.hostname(), os.date("%Y-%m-%d")})
 255                 luci.http.prepare_content("application/x-targz")
 256                 luci.ltn12.pump.all(reader, luci.http.write)
 257         elseif luci.http.formvalue("restore") then
 258                 --
 259                 -- Unpack received .tar.gz
 260                 --
 261                 local upload = luci.http.formvalue("archive")
 262                 if upload and #upload > 0 then
 263                         luci.template.render("admin_system/applyreboot")
 264                         luci.sys.reboot()
 265                 end
 266         elseif luci.http.formvalue("image") or luci.http.formvalue("step") then
 267                 --
 268                 -- Initiate firmware flash
 269                 --
 270                 local step = tonumber(luci.http.formvalue("step") or 1)
 271                 if step == 1 then
 272                         if image_supported() then
 273                                 luci.template.render("admin_system/upgrade", {
 274                                         checksum = image_checksum(),
 275                                         storage  = storage_size(),
 276                                         size     = nixio.fs.stat(image_tmp).size,
 277                                         keep     = (not not luci.http.formvalue("keep"))
 278                                 })
 279                         else
 280                                 nixio.fs.unlink(image_tmp)
 281                                 luci.template.render("admin_system/flashops", {
 282                                         reset_avail   = reset_avail,
 283                                         upgrade_avail = upgrade_avail,
 284                                         image_invalid = true
 285                                 })
 286                         end
 287                 --
 288                 -- Start sysupgrade flash
 289                 --
 290                 elseif step == 2 then
 291                         local keep = (luci.http.formvalue("keep") == "1") and "" or "-n"
 292                         luci.template.render("admin_system/applyreboot", {
 293                                 title = luci.i18n.translate("Flashing..."),
 294                                 msg   = luci.i18n.translate("The system is flashing now.<br /> DO NOT POWER OFF THE DEVICE!<br /> Wait a few minutes until you try to reconnect. It might be necessary to renew the address of your computer to reach the device again, depending on your settings."),
 295                                 addr  = (#keep > 0) and "192.168.1.1" or nil
 296                         })
 297                         fork_exec("killall dropbear uhttpd; sleep 1; /sbin/sysupgrade %s %q" %{ keep, image_tmp })
 298                 end
 299         elseif reset_avail and luci.http.formvalue("reset") then
 300                 --
 301                 -- Reset system
 302                 --
 303                 luci.template.render("admin_system/applyreboot", {
 304                         title = luci.i18n.translate("Erasing..."),
 305                         msg   = luci.i18n.translate("The system is erasing the configuration partition now and will reboot itself when finished."),
 306                         addr  = "192.168.1.1"
 307                 })
 308                 fork_exec("killall dropbear uhttpd; sleep 1; mtd -r erase rootfs_data")
 309         else
 310                 --
 311                 -- Overview
 312                 --
 313                 luci.template.render("admin_system/flashops", {
 314                         reset_avail   = reset_avail,
 315                         upgrade_avail = upgrade_avail
 316                 })
 317         end
 318 end
 319
 320 function action_passwd()
 321         local p1 = luci.http.formvalue("pwd1")
 322         local p2 = luci.http.formvalue("pwd2")
 323         local stat = nil
 324
 325         if p1 or p2 then
 326                 if p1 == p2 then
 327                         stat = luci.sys.user.setpasswd("root", p1)
 328                 else
 329                         stat = 10
 330                 end
 331         end
 332
 333         luci.template.render("admin_system/passwd", {stat=stat})
 334 end
 335
 336 function action_reboot()
 337         local reboot = luci.http.formvalue("reboot")
 338         luci.template.render("admin_system/reboot", {reboot=reboot})
 339         if reboot then
 340                 luci.sys.reboot()
 341         end
 342 end
 343
 344 function fork_exec(command)
 345         local pid = nixio.fork()
 346         if pid > 0 then
 347                 return
 348         elseif pid == 0 then
 349                 -- change to root dir
 350                 nixio.chdir("/")
 351
 352                 -- patch stdin, out, err to /dev/null
 353                 local null = nixio.open("/dev/null", "w+")
 354                 if null then
 355                         nixio.dup(null, nixio.stderr)
 356                         nixio.dup(null, nixio.stdout)
 357                         nixio.dup(null, nixio.stdin)
 358                         if null:fileno() > 2 then
 359                                 null:close()
 360                         end
 361                 end
 362
 363                 -- replace with target command
 364                 nixio.exec("/bin/sh", "-c", command)
 365         end
 366 end
 367
 368 function ltn12_popen(command)
 369
 370         local fdi, fdo = nixio.pipe()
 371         local pid = nixio.fork()
 372
 373         if pid > 0 then
 374                 fdo:close()
 375                 local close
 376                 return function()
 377                         local buffer = fdi:read(2048)
 378                         local wpid, stat = nixio.waitpid(pid, "nohang")
 379                         if not close and wpid and stat == "exited" then
 380                                 close = true
 381                         end
 382
 383                         if buffer and #buffer > 0 then
 384                                 return buffer
 385                         elseif close then
 386                                 fdi:close()
 387                                 return nil
 388                         end
 389                 end
 390         elseif pid == 0 then
 391                 nixio.dup(fdo, nixio.stdout)
 392                 fdi:close()
 393                 fdo:close()
 394                 nixio.exec("/bin/sh", "-c", command)
 395         end
 396 end