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
  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", "admin"}, cbi("admin_system/admin"), _("Administration"), 2)
  22
  23         if nixio.fs.access("/bin/opkg") then
  24                 entry({"admin", "system", "packages"}, call("action_packages"), _("Software"), 10)
  25                 entry({"admin", "system", "packages", "ipkg"}, form("admin_system/ipkg"))
  26         end
  27
  28         entry({"admin", "system", "startup"}, form("admin_system/startup"), _("Startup"), 45)
  29
  30         if nixio.fs.access("/etc/config/fstab") then
  31                 entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), _("Mount Points"), 50)
  32                 entry({"admin", "system", "fstab", "mount"}, cbi("admin_system/fstab/mount"), nil).leaf = true
  33                 entry({"admin", "system", "fstab", "swap"},  cbi("admin_system/fstab/swap"),  nil).leaf = true
  34         end
  35
  36         if nixio.fs.access("/sys/class/leds") then
  37                 entry({"admin", "system", "leds"}, cbi("admin_system/leds"), _("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
  38         end
  39
  40         entry({"admin", "system", "backup"}, call("action_backup"), _("Backup / Restore"), 70)
  41         entry({"admin", "system", "upgrade"}, call("action_upgrade"), _("Flash Firmware"), 80)
  42         entry({"admin", "system", "reboot"}, call("action_reboot"), _("Reboot"), 90)
  43 end
  44
  45 function action_packages()
  46         local ipkg = require("luci.model.ipkg")
  47         local submit = luci.http.formvalue("submit")
  48         local changes = false
  49         local install = { }
  50         local remove  = { }
  51         local stdout  = { "" }
  52         local stderr  = { "" }
  53         local out, err
  54
  55         -- Display
  56         local display = luci.http.formvalue("display") or "installed"
  57
  58         -- Letter
  59         local letter = string.byte(luci.http.formvalue("letter") or "A", 1)
  60         letter = (letter == 35 or (letter >= 65 and letter <= 90)) and letter or 65
  61
  62         -- Search query
  63         local query = luci.http.formvalue("query")
  64         query = (query ~= '') and query or nil
  65
  66
  67         -- Packets to be installed
  68         local ninst = submit and luci.http.formvalue("install")
  69         local uinst = nil
  70
  71         -- Install from URL
  72         local url = luci.http.formvalue("url")
  73         if url and url ~= '' and submit then
  74                 uinst = url
  75         end
  76
  77         -- Do install
  78         if ninst then
  79                 install[ninst], out, err = ipkg.install(ninst)
  80                 stdout[#stdout+1] = out
  81                 stderr[#stderr+1] = err
  82                 changes = true
  83         end
  84
  85         if uinst then
  86                 install[uinst], out, err = ipkg.install(uinst)
  87                 stdout[#stdout+1] = out
  88                 stderr[#stderr+1] = err
  89                 changes = true
  90         end
  91
  92         -- Remove packets
  93         local rem = submit and luci.http.formvalue("remove")
  94         if rem then
  95                 remove[rem], out, err = ipkg.remove(rem)
  96                 stdout[#stdout+1] = out
  97                 stderr[#stderr+1] = err
  98                 changes = true
  99         end
 100
 101
 102         -- Update all packets
 103         local update = luci.http.formvalue("update")
 104         if update then
 105                 update, out, err = ipkg.update()
 106                 stdout[#stdout+1] = out
 107                 stderr[#stderr+1] = err
 108         end
 109
 110
 111         -- Upgrade all packets
 112         local upgrade = luci.http.formvalue("upgrade")
 113         if upgrade then
 114                 upgrade, out, err = ipkg.upgrade()
 115                 stdout[#stdout+1] = out
 116                 stderr[#stderr+1] = err
 117         end
 118
 119
 120         luci.template.render("admin_system/packages", {
 121                 display = display,
 122                 letter  = letter,
 123                 query   = query,
 124                 install = install,
 125                 remove  = remove,
 126                 update  = update,
 127                 upgrade = upgrade,
 128                 stdout  = table.concat(stdout, ""),
 129                 stderr  = table.concat(stderr, "")
 130         })
 131
 132         -- Remove index cache
 133         if changes then
 134                 nixio.fs.unlink("/tmp/luci-indexcache")
 135         end
 136 end
 137
 138 function action_backup()
 139         local sys = require "luci.sys"
 140         local fs  = require "luci.fs"
 141
 142         local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
 143         local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
 144         local backup_cmd  = "tar -czT %s 2>/dev/null"
 145
 146         local restore_fpi
 147         luci.http.setfilehandler(
 148                 function(meta, chunk, eof)
 149                         if not restore_fpi then
 150                                 restore_fpi = io.popen(restore_cmd, "w")
 151                         end
 152                         if chunk then
 153                                 restore_fpi:write(chunk)
 154                         end
 155                         if eof then
 156                                 restore_fpi:close()
 157                         end
 158                 end
 159         )
 160
 161         local upload = luci.http.formvalue("archive")
 162         local backup = luci.http.formvalue("backup")
 163         local reset  = reset_avail and luci.http.formvalue("reset")
 164
 165         if upload and #upload > 0 then
 166                 luci.template.render("admin_system/applyreboot")
 167                 luci.sys.reboot()
 168         elseif backup then
 169                 local filelist = "/tmp/luci-backup-list.%d" % os.time()
 170
 171                 sys.call(
 172                         "( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' /etc/sysupgrade.conf " ..
 173                         "/lib/upgrade/keep.d/* 2>/dev/null) -type f 2>/dev/null; " ..
 174                         "opkg list-changed-conffiles ) | sort -u > %s" % filelist
 175                 )
 176
 177                 if fs.access(filelist) then
 178                         local reader = ltn12_popen(backup_cmd:format(filelist))
 179                         luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
 180                                 luci.sys.hostname(), os.date("%Y-%m-%d")})
 181                         luci.http.prepare_content("application/x-targz")
 182                         luci.ltn12.pump.all(reader, luci.http.write)
 183                         fs.unlink(filelist)
 184                 end
 185         elseif reset then
 186                 luci.template.render("admin_system/applyreboot")
 187                 luci.util.exec("mtd -r erase rootfs_data")
 188         else
 189                 luci.template.render("admin_system/backup", {reset_avail = reset_avail})
 190         end
 191 end
 192
 193 function action_passwd()
 194         local p1 = luci.http.formvalue("pwd1")
 195         local p2 = luci.http.formvalue("pwd2")
 196         local stat = nil
 197
 198         if p1 or p2 then
 199                 if p1 == p2 then
 200                         stat = luci.sys.user.setpasswd("root", p1)
 201                 else
 202                         stat = 10
 203                 end
 204         end
 205
 206         luci.template.render("admin_system/passwd", {stat=stat})
 207 end
 208
 209 function action_reboot()
 210         local reboot = luci.http.formvalue("reboot")
 211         luci.template.render("admin_system/reboot", {reboot=reboot})
 212         if reboot then
 213                 luci.sys.reboot()
 214         end
 215 end
 216
 217 function action_upgrade()
 218         require("luci.model.uci")
 219
 220         local tmpfile = "/tmp/firmware.img"
 221
 222         local function image_supported()
 223                 -- XXX: yay...
 224                 return ( 0 == os.execute(
 225                         ". /etc/functions.sh; " ..
 226                         "include /lib/upgrade; " ..
 227                         "platform_check_image %q >/dev/null"
 228                                 % tmpfile
 229                 ) )
 230         end
 231
 232         local function image_checksum()
 233                 return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
 234         end
 235
 236         local function storage_size()
 237                 local size = 0
 238                 if nixio.fs.access("/proc/mtd") then
 239                         for l in io.lines("/proc/mtd") do
 240                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 241                                 if n == "linux" then
 242                                         size = tonumber(s, 16)
 243                                         break
 244                                 end
 245                         end
 246                 elseif nixio.fs.access("/proc/partitions") then
 247                         for l in io.lines("/proc/partitions") do
 248                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 249                                 if b and n and not n:match('[0-9]') then
 250                                         size = tonumber(b) * 1024
 251                                         break
 252                                 end
 253                         end
 254                 end
 255                 return size
 256         end
 257
 258
 259         -- Install upload handler
 260         local file
 261         luci.http.setfilehandler(
 262                 function(meta, chunk, eof)
 263                         if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
 264                                 file = io.open(tmpfile, "w")
 265                         end
 266                         if file and chunk then
 267                                 file:write(chunk)
 268                         end
 269                         if file and eof then
 270                                 file:close()
 271                         end
 272                 end
 273         )
 274
 275
 276         -- Determine state
 277         local keep_avail   = true
 278         local step         = tonumber(luci.http.formvalue("step") or 1)
 279         local has_image    = nixio.fs.access(tmpfile)
 280         local has_support  = image_supported()
 281         local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
 282         local has_upload   = luci.http.formvalue("image")
 283
 284         -- This does the actual flashing which is invoked inside an iframe
 285         -- so don't produce meaningful errors here because the the
 286         -- previous pages should arrange the stuff as required.
 287         if step == 4 then
 288                 if has_platform and has_image and has_support then
 289                         -- Mimetype text/plain
 290                         luci.http.prepare_content("text/plain")
 291                         luci.http.write("Starting sysupgrade...\n")
 292
 293                         io.flush()
 294
 295                         -- Now invoke sysupgrade
 296                         local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
 297                         local flash = ltn12_popen("/sbin/sysupgrade %s %q" %{
 298                                 keepcfg and "" or "-n", tmpfile
 299                         })
 300
 301                         luci.ltn12.pump.all(flash, luci.http.write)
 302                 end
 303
 304
 305         --
 306         -- This is step 1-3, which does the user interaction and
 307         -- image upload.
 308         --
 309
 310         -- Step 1: file upload, error on unsupported image format
 311         elseif not has_image or not has_support or step == 1 then
 312                 -- If there is an image but user has requested step 1
 313                 -- or type is not supported, then remove it.
 314                 if has_image then
 315                         nixio.fs.unlink(tmpfile)
 316                 end
 317
 318                 luci.template.render("admin_system/upgrade", {
 319                         step=1,
 320                         bad_image=(has_image and not has_support or false),
 321                         keepavail=keep_avail,
 322                         supported=has_platform
 323                 } )
 324
 325         -- Step 2: present uploaded file, show checksum, confirmation
 326         elseif step == 2 then
 327                 luci.template.render("admin_system/upgrade", {
 328                         step=2,
 329                         checksum=image_checksum(),
 330                         filesize=nixio.fs.stat(tmpfile).size,
 331                         flashsize=storage_size(),
 332                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 333                 } )
 334
 335         -- Step 3: load iframe which calls the actual flash procedure
 336         elseif step == 3 then
 337                 luci.template.render("admin_system/upgrade", {
 338                         step=3,
 339                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 340                 } )
 341         end
 342 end
 343
 344 function ltn12_popen(command)
 345
 346         local fdi, fdo = nixio.pipe()
 347         local pid = nixio.fork()
 348
 349         if pid > 0 then
 350                 fdo:close()
 351                 local close
 352                 return function()
 353                         local buffer = fdi:read(2048)
 354                         local wpid, stat = nixio.waitpid(pid, "nohang")
 355                         if not close and wpid and stat == "exited" then
 356                                 close = true
 357                         end
 358
 359                         if buffer and #buffer > 0 then
 360                                 return buffer
 361                         elseif close then
 362                                 fdi:close()
 363                                 return nil
 364                         end
 365                 end
 366         elseif pid == 0 then
 367                 nixio.dup(fdo, nixio.stdout)
 368                 fdi:close()
 369                 fdo:close()
 370                 nixio.exec("/bin/sh", "-c", command)
 371         end
 372 end