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

   1 -- Copyright 2008 Steven Barth <steven@midlink.org>
   2 -- Copyright 2008-2011 Jo-Philipp Wich <jow@openwrt.org>
   3 -- Licensed to the public under the Apache License 2.0.
   4
   5 module("luci.controller.admin.system", package.seeall)
   6
   7 function index()
   8         local fs = require "nixio.fs"
   9
  10         entry({"admin", "system"}, alias("admin", "system", "system"), _("System"), 30).index = true
  11         entry({"admin", "system", "system"}, cbi("admin_system/system"), _("System"), 1)
  12         entry({"admin", "system", "clock_status"}, post_on({ set = true }, "action_clock_status"))
  13
  14         entry({"admin", "system", "admin"}, cbi("admin_system/admin"), _("Administration"), 2)
  15
  16         if fs.access("/bin/opkg") then
  17                 entry({"admin", "system", "packages"}, post_on({ exec = "1" }, "action_packages"), _("Software"), 10)
  18                 entry({"admin", "system", "packages", "ipkg"}, form("admin_system/ipkg"))
  19         end
  20
  21         entry({"admin", "system", "startup"}, form("admin_system/startup"), _("Startup"), 45)
  22         entry({"admin", "system", "crontab"}, form("admin_system/crontab"), _("Scheduled Tasks"), 46)
  23
  24         if fs.access("/sbin/block") and fs.access("/etc/config/fstab") then
  25                 entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), _("Mount Points"), 50)
  26                 entry({"admin", "system", "fstab", "mount"}, cbi("admin_system/fstab/mount"), nil).leaf = true
  27                 entry({"admin", "system", "fstab", "swap"},  cbi("admin_system/fstab/swap"),  nil).leaf = true
  28         end
  29
  30         if fs.access("/sys/class/leds") then
  31                 entry({"admin", "system", "leds"}, cbi("admin_system/leds"), _("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
  32         end
  33
  34         entry({"admin", "system", "flashops"}, call("action_flashops"), _("Backup / Flash Firmware"), 70)
  35         entry({"admin", "system", "flashops", "reset"}, post("action_reset"))
  36         entry({"admin", "system", "flashops", "backup"}, post("action_backup"))
  37         entry({"admin", "system", "flashops", "backupfiles"}, form("admin_system/backupfiles"))
  38
  39         -- call() instead of post() due to upload handling!
  40         entry({"admin", "system", "flashops", "restore"}, call("action_restore"))
  41         entry({"admin", "system", "flashops", "sysupgrade"}, call("action_sysupgrade"))
  42
  43         entry({"admin", "system", "reboot"}, template("admin_system/reboot"), _("Reboot"), 90)
  44         entry({"admin", "system", "reboot", "call"}, post("action_reboot"))
  45 end
  46
  47 function action_clock_status()
  48         local set = tonumber(luci.http.formvalue("set"))
  49         if set ~= nil and set > 0 then
  50                 local date = os.date("*t", set)
  51                 if date then
  52                         luci.sys.call("date -s '%04d-%02d-%02d %02d:%02d:%02d'" %{
  53                                 date.year, date.month, date.day, date.hour, date.min, date.sec
  54                         })
  55                         luci.sys.call("/etc/init.d/sysfixtime restart")
  56                 end
  57         end
  58
  59         luci.http.prepare_content("application/json")
  60         luci.http.write_json({ timestring = os.date("%c") })
  61 end
  62
  63 function action_packages()
  64         local fs = require "nixio.fs"
  65         local ipkg = require "luci.model.ipkg"
  66         local submit = (luci.http.formvalue("exec") == "1")
  67         local update, upgrade
  68         local changes = false
  69         local install = { }
  70         local remove  = { }
  71         local stdout  = { "" }
  72         local stderr  = { "" }
  73         local out, err
  74
  75         -- Display
  76         local display = luci.http.formvalue("display") or "installed"
  77
  78         -- Letter
  79         local letter = string.byte(luci.http.formvalue("letter") or "A", 1)
  80         letter = (letter == 35 or (letter >= 65 and letter <= 90)) and letter or 65
  81
  82         -- Search query
  83         local query = luci.http.formvalue("query")
  84         query = (query ~= '') and query or nil
  85
  86
  87         -- Modifying actions
  88         if submit then
  89                 -- Packets to be installed
  90                 local ninst = 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 ~= '' 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 = 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                 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                 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         end
 144
 145
 146         -- List state
 147         local no_lists = true
 148         local old_lists = false
 149         if fs.access("/var/opkg-lists/") then
 150                 local list
 151                 for list in fs.dir("/var/opkg-lists/") do
 152                         no_lists = false
 153                         if (fs.stat("/var/opkg-lists/"..list, "mtime") or 0) < (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                 fs.unlink("/tmp/luci-indexcache")
 178         end
 179 end
 180
 181 local function image_supported(image)
 182         return (os.execute("sysupgrade -T %q >/dev/null" % image) == 0)
 183 end
 184
 185 local function image_checksum(image)
 186         return (luci.sys.exec("md5sum %q" % image):match("^([^%s]+)"))
 187 end
 188
 189 local function image_sha256_checksum(image)
 190         return (luci.sys.exec("sha256sum %q" % image):match("^([^%s]+)"))
 191 end
 192
 193 local function supports_sysupgrade()
 194         return nixio.fs.access("/lib/upgrade/platform.sh")
 195 end
 196
 197 local function supports_reset()
 198         return (os.execute([[grep -sqE '"rootfs_data"|"ubi"' /proc/mtd]]) == 0)
 199 end
 200
 201 local function storage_size()
 202         local size = 0
 203         if nixio.fs.access("/proc/mtd") then
 204                 for l in io.lines("/proc/mtd") do
 205                         local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 206                         if n == "linux" or n == "firmware" then
 207                                 size = tonumber(s, 16)
 208                                 break
 209                         end
 210                 end
 211         elseif nixio.fs.access("/proc/partitions") then
 212                 for l in io.lines("/proc/partitions") do
 213                         local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 214                         if b and n and not n:match('[0-9]') then
 215                                 size = tonumber(b) * 1024
 216                                 break
 217                         end
 218                 end
 219         end
 220         return size
 221 end
 222
 223
 224 function action_flashops()
 225         --
 226         -- Overview
 227         --
 228         luci.template.render("admin_system/flashops", {
 229                 reset_avail   = supports_reset(),
 230                 upgrade_avail = supports_sysupgrade()
 231         })
 232 end
 233
 234 function action_sysupgrade()
 235         local fs = require "nixio.fs"
 236         local http = require "luci.http"
 237         local image_tmp = "/tmp/firmware.img"
 238
 239         local fp
 240         http.setfilehandler(
 241                 function(meta, chunk, eof)
 242                         if not fp and meta and meta.name == "image" then
 243                                 fp = io.open(image_tmp, "w")
 244                         end
 245                         if fp and chunk then
 246                                 fp:write(chunk)
 247                         end
 248                         if fp and eof then
 249                                 fp:close()
 250                         end
 251                 end
 252         )
 253
 254         if not luci.dispatcher.test_post_security() then
 255                 fs.unlink(image_tmp)
 256                 return
 257         end
 258
 259         --
 260         -- Cancel firmware flash
 261         --
 262         if http.formvalue("cancel") then
 263                 fs.unlink(image_tmp)
 264                 http.redirect(luci.dispatcher.build_url('admin/system/flashops'))
 265                 return
 266         end
 267
 268         --
 269         -- Initiate firmware flash
 270         --
 271         local step = tonumber(http.formvalue("step") or 1)
 272         if step == 1 then
 273                 if image_supported(image_tmp) then
 274                         luci.template.render("admin_system/upgrade", {
 275                                 checksum = image_checksum(image_tmp),
 276                                 sha256ch = image_sha256_checksum(image_tmp),
 277                                 storage  = storage_size(),
 278                                 size     = (fs.stat(image_tmp, "size") or 0),
 279                                 keep     = (not not http.formvalue("keep"))
 280                         })
 281                 else
 282                         fs.unlink(image_tmp)
 283                         luci.template.render("admin_system/flashops", {
 284                                 reset_avail   = supports_reset(),
 285                                 upgrade_avail = supports_sysupgrade(),
 286                                 image_invalid = true
 287                         })
 288                 end
 289         --
 290         -- Start sysupgrade flash
 291         --
 292         elseif step == 2 then
 293                 local keep = (http.formvalue("keep") == "1") and "" or "-n"
 294                 luci.template.render("admin_system/applyreboot", {
 295                         title = luci.i18n.translate("Flashing..."),
 296                         msg   = luci.i18n.translate("The system is flashing now.<br /> DO NOT POWER OFF THE DEVICE!<br /> Wait a few minutes before you try to reconnect. It might be necessary to renew the address of your computer to reach the device again, depending on your settings."),
 297                         addr  = (#keep > 0) and "192.168.1.1" or nil
 298                 })
 299                 fork_exec("sleep 1; killall dropbear uhttpd; sleep 1; /sbin/sysupgrade %s %q" %{ keep, image_tmp })
 300         end
 301 end
 302
 303 function action_backup()
 304         local reader = ltn12_popen("sysupgrade --create-backup - 2>/dev/null")
 305
 306         luci.http.header(
 307                 'Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' %{
 308                         luci.sys.hostname(),
 309                         os.date("%Y-%m-%d")
 310                 })
 311
 312         luci.http.prepare_content("application/x-targz")
 313         luci.ltn12.pump.all(reader, luci.http.write)
 314 end
 315
 316 function action_restore()
 317         local fs = require "nixio.fs"
 318         local http = require "luci.http"
 319         local archive_tmp = "/tmp/restore.tar.gz"
 320
 321         local fp
 322         http.setfilehandler(
 323                 function(meta, chunk, eof)
 324                         if not fp and meta and meta.name == "archive" then
 325                                 fp = io.open(archive_tmp, "w")
 326                         end
 327                         if fp and chunk then
 328                                 fp:write(chunk)
 329                         end
 330                         if fp and eof then
 331                                 fp:close()
 332                         end
 333                 end
 334         )
 335
 336         if not luci.dispatcher.test_post_security() then
 337                 fs.unlink(archive_tmp)
 338                 return
 339         end
 340
 341         local upload = http.formvalue("archive")
 342         if upload and #upload > 0 then
 343                 luci.template.render("admin_system/applyreboot")
 344                 os.execute("tar -C / -xzf %q >/dev/null 2>&1" % archive_tmp)
 345                 luci.sys.reboot()
 346                 return
 347         end
 348
 349         http.redirect(luci.dispatcher.build_url('admin/system/flashops'))
 350 end
 351
 352 function action_reset()
 353         if supports_reset() then
 354                 luci.template.render("admin_system/applyreboot", {
 355                         title = luci.i18n.translate("Erasing..."),
 356                         msg   = luci.i18n.translate("The system is erasing the configuration partition now and will reboot itself when finished."),
 357                         addr  = "192.168.1.1"
 358                 })
 359
 360                 fork_exec("sleep 1; killall dropbear uhttpd; sleep 1; jffs2reset -y && reboot")
 361                 return
 362         end
 363
 364         http.redirect(luci.dispatcher.build_url('admin/system/flashops'))
 365 end
 366
 367 function action_passwd()
 368         local p1 = luci.http.formvalue("pwd1")
 369         local p2 = luci.http.formvalue("pwd2")
 370         local stat = nil
 371
 372         if p1 or p2 then
 373                 if p1 == p2 then
 374                         stat = luci.sys.user.setpasswd("root", p1)
 375                 else
 376                         stat = 10
 377                 end
 378         end
 379
 380         luci.template.render("admin_system/passwd", {stat=stat})
 381 end
 382
 383 function action_reboot()
 384         luci.sys.reboot()
 385 end
 386
 387 function fork_exec(command)
 388         local pid = nixio.fork()
 389         if pid > 0 then
 390                 return
 391         elseif pid == 0 then
 392                 -- change to root dir
 393                 nixio.chdir("/")
 394
 395                 -- patch stdin, out, err to /dev/null
 396                 local null = nixio.open("/dev/null", "w+")
 397                 if null then
 398                         nixio.dup(null, nixio.stderr)
 399                         nixio.dup(null, nixio.stdout)
 400                         nixio.dup(null, nixio.stdin)
 401                         if null:fileno() > 2 then
 402                                 null:close()
 403                         end
 404                 end
 405
 406                 -- replace with target command
 407                 nixio.exec("/bin/sh", "-c", command)
 408         end
 409 end
 410
 411 function ltn12_popen(command)
 412
 413         local fdi, fdo = nixio.pipe()
 414         local pid = nixio.fork()
 415
 416         if pid > 0 then
 417                 fdo:close()
 418                 local close
 419                 return function()
 420                         local buffer = fdi:read(2048)
 421                         local wpid, stat = nixio.waitpid(pid, "nohang")
 422                         if not close and wpid and stat == "exited" then
 423                                 close = true
 424                         end
 425
 426                         if buffer and #buffer > 0 then
 427                                 return buffer
 428                         elseif close then
 429                                 fdi:close()
 430                                 return nil
 431                         end
 432                 end
 433         elseif pid == 0 then
 434                 nixio.dup(fdo, nixio.stdout)
 435                 fdi:close()
 436                 fdo:close()
 437                 nixio.exec("/bin/sh", "-c", command)
 438         end
 439 end