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