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