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