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