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 module("luci.controller.admin.system", package.seeall)
  16
  17 function index()
  18         luci.i18n.loadc("admin-core")
  19         local i18n = luci.i18n.translate
  20
  21         entry({"admin", "system"}, alias("admin", "system", "system"), i18n("System"), 30).index = true
  22         entry({"admin", "system", "system"}, cbi("admin_system/system"), i18n("System"), 1)
  23         entry({"admin", "system", "packages"}, call("action_packages"), i18n("Software"), 10)
  24         entry({"admin", "system", "packages", "ipkg"}, form("admin_system/ipkg"))
  25         entry({"admin", "system", "passwd"}, form("admin_system/passwd"), i18n("Admin Password"), 20)
  26         entry({"admin", "system", "sshkeys"}, form("admin_system/sshkeys"), i18n("<abbr title=\"Secure Shell\">SSH</abbr>-Keys"), 30)
  27         entry({"admin", "system", "processes"}, form("admin_system/processes"), i18n("Processes"), 45)
  28         entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), i18n("Mount Points"), 50)
  29
  30         if nixio.fs.access("/sys/class/leds") then
  31                 entry({"admin", "system", "leds"}, cbi("admin_system/leds"), i18n("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
  32         end
  33
  34         entry({"admin", "system", "backup"}, call("action_backup"), i18n("Backup / Restore"), 70)
  35         entry({"admin", "system", "upgrade"}, call("action_upgrade"), i18n("Flash Firmware"), 80)
  36         entry({"admin", "system", "reboot"}, call("action_reboot"), i18n("Reboot"), 90)
  37 end
  38
  39 function action_packages()
  40         local ipkg = require("luci.model.ipkg")
  41         local void = nil
  42         local submit = luci.http.formvalue("submit")
  43         local changes = false
  44
  45
  46         -- Search query
  47         local query = luci.http.formvalue("query")
  48         query = (query ~= '') and query or nil
  49
  50
  51         -- Packets to be installed
  52         local install = submit and luci.http.formvaluetable("install")
  53
  54         -- Install from URL
  55         local url = luci.http.formvalue("url")
  56         if url and url ~= '' and submit then
  57                 if not install then
  58                         install = {}
  59                 end
  60                 install[url] = 1
  61                 changes = true
  62         end
  63
  64         -- Do install
  65         if install then
  66                 for k, v in pairs(install) do
  67                         void, install[k] = ipkg.install(k)
  68                 end
  69                 changes = true
  70         end
  71
  72
  73         -- Remove packets
  74         local remove = submit and luci.http.formvaluetable("remove")
  75         if remove then
  76                 for k, v in pairs(remove) do
  77                         void, remove[k] = ipkg.remove(k)
  78                 end
  79                 changes = true
  80         end
  81
  82
  83         -- Update all packets
  84         local update = luci.http.formvalue("update")
  85         if update then
  86                 void, update = ipkg.update()
  87         end
  88
  89
  90         -- Upgrade all packets
  91         local upgrade = luci.http.formvalue("upgrade")
  92         if upgrade then
  93                 void, upgrade = ipkg.upgrade()
  94         end
  95
  96
  97         -- Package info
  98         local info = luci.model.ipkg.info(query and "*"..query.."*")
  99         info = info or {}
 100         local pkgs = {}
 101
 102         -- Sort after status and name
 103         for k, v in pairs(info) do
 104                 local x = 0
 105                 for i, j in pairs(pkgs) do
 106                         local vins = (v.Status and v.Status.installed)
 107                         local jins = (j.Status and j.Status.installed)
 108                         if vins ~= jins then
 109                                 if vins then
 110                                         break
 111                                 end
 112                         else
 113                                 if j.Package > v.Package then
 114                                         break
 115                                 end
 116                         end
 117                         x = i
 118                 end
 119                 table.insert(pkgs, x+1, v)
 120         end
 121
 122         luci.template.render("admin_system/packages", {pkgs=pkgs, query=query,
 123          install=install, remove=remove, update=update, upgrade=upgrade})
 124
 125         -- Remove index cache
 126         if changes then
 127                 nixio.fs.unlink("/tmp/luci-indexcache")
 128         end
 129 end
 130
 131 function action_backup()
 132         local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
 133         local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
 134         local backup_cmd  = "tar -cz %s 2>/dev/null"
 135
 136         local restore_fpi
 137         luci.http.setfilehandler(
 138                 function(meta, chunk, eof)
 139                         if not restore_fpi then
 140                                 restore_fpi = io.popen(restore_cmd, "w")
 141                         end
 142                         if chunk then
 143                                 restore_fpi:write(chunk)
 144                         end
 145                         if eof then
 146                                 restore_fpi:close()
 147                         end
 148                 end
 149         )
 150
 151         local upload = luci.http.formvalue("archive")
 152         local backup = luci.http.formvalue("backup")
 153         local reset  = reset_avail and luci.http.formvalue("reset")
 154
 155         if upload and #upload > 0 then
 156                 luci.template.render("admin_system/applyreboot")
 157                 luci.sys.reboot()
 158         elseif backup then
 159                 local reader = ltn12_popen(backup_cmd:format(_keep_pattern()))
 160                 luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
 161                         luci.sys.hostname(), os.date("%Y-%m-%d")})
 162                 luci.http.prepare_content("application/x-targz")
 163                 luci.ltn12.pump.all(reader, luci.http.write)
 164         elseif reset then
 165                 luci.template.render("admin_system/applyreboot")
 166                 luci.util.exec("mtd -r erase rootfs_data")
 167         else
 168                 luci.template.render("admin_system/backup", {reset_avail = reset_avail})
 169         end
 170 end
 171
 172 function action_passwd()
 173         local p1 = luci.http.formvalue("pwd1")
 174         local p2 = luci.http.formvalue("pwd2")
 175         local stat = nil
 176
 177         if p1 or p2 then
 178                 if p1 == p2 then
 179                         stat = luci.sys.user.setpasswd("root", p1)
 180                 else
 181                         stat = 10
 182                 end
 183         end
 184
 185         luci.template.render("admin_system/passwd", {stat=stat})
 186 end
 187
 188 function action_reboot()
 189         local reboot = luci.http.formvalue("reboot")
 190         luci.template.render("admin_system/reboot", {reboot=reboot})
 191         if reboot then
 192                 luci.sys.reboot()
 193         end
 194 end
 195
 196 function action_upgrade()
 197         require("luci.model.uci")
 198
 199         local tmpfile = "/tmp/firmware.img"
 200
 201         local function image_supported()
 202                 -- XXX: yay...
 203                 return ( 0 == os.execute(
 204                         ". /etc/functions.sh; " ..
 205                         "include /lib/upgrade; " ..
 206                         "platform_check_image %q >/dev/null"
 207                                 % tmpfile
 208                 ) )
 209         end
 210
 211         local function image_checksum()
 212                 return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
 213         end
 214
 215         local function storage_size()
 216                 local size = 0
 217                 if nixio.fs.access("/proc/mtd") then
 218                         for l in io.lines("/proc/mtd") do
 219                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 220                                 if n == "linux" then
 221                                         size = tonumber(s, 16)
 222                                         break
 223                                 end
 224                         end
 225                 elseif nixio.fs.access("/proc/partitions") then
 226                         for l in io.lines("/proc/partitions") do
 227                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 228                                 if b and n and not n:match('[0-9]') then
 229                                         size = tonumber(b) * 1024
 230                                         break
 231                                 end
 232                         end
 233                 end
 234                 return size
 235         end
 236
 237
 238         -- Install upload handler
 239         local file
 240         luci.http.setfilehandler(
 241                 function(meta, chunk, eof)
 242                         if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
 243                                 file = io.open(tmpfile, "w")
 244                         end
 245                         if file and chunk then
 246                                 file:write(chunk)
 247                         end
 248                         if file and eof then
 249                                 file:close()
 250                         end
 251                 end
 252         )
 253
 254
 255         -- Determine state
 256         local keep_avail   = true
 257         local step         = tonumber(luci.http.formvalue("step") or 1)
 258         local has_image    = nixio.fs.access(tmpfile)
 259         local has_support  = image_supported()
 260         local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
 261         local has_upload   = luci.http.formvalue("image")
 262
 263         -- This does the actual flashing which is invoked inside an iframe
 264         -- so don't produce meaningful errors here because the the
 265         -- previous pages should arrange the stuff as required.
 266         if step == 4 then
 267                 if has_platform and has_image and has_support then
 268                         -- Mimetype text/plain
 269                         luci.http.prepare_content("text/plain")
 270
 271                         -- Now invoke sysupgrade
 272                         local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
 273                         local fd = io.popen("/sbin/luci-flash %s %q" %{
 274                                 keepcfg and "-k %q" % _keep_pattern() or "", tmpfile
 275                         })
 276
 277                         if fd then
 278                                 while true do
 279                                         local ln = fd:read("*l")
 280                                         if not ln then break end
 281                                         luci.http.write(ln .. "\n")
 282                                 end
 283                                 fd:close()
 284                         end
 285
 286                         -- Make sure the device is rebooted
 287                         luci.sys.reboot()
 288                 end
 289
 290
 291         --
 292         -- This is step 1-3, which does the user interaction and
 293         -- image upload.
 294         --
 295
 296         -- Step 1: file upload, error on unsupported image format
 297         elseif not has_image or not has_support or step == 1 then
 298                 -- If there is an image but user has requested step 1
 299                 -- or type is not supported, then remove it.
 300                 if has_image then
 301                         nixio.fs.unlink(tmpfile)
 302                 end
 303
 304                 luci.template.render("admin_system/upgrade", {
 305                         step=1,
 306                         bad_image=(has_image and not has_support or false),
 307                         keepavail=keep_avail,
 308                         supported=has_platform
 309                 } )
 310
 311         -- Step 2: present uploaded file, show checksum, confirmation
 312         elseif step == 2 then
 313                 luci.template.render("admin_system/upgrade", {
 314                         step=2,
 315                         checksum=image_checksum(),
 316                         filesize=nixio.fs.stat(tmpfile).size,
 317                         flashsize=storage_size(),
 318                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 319                 } )
 320
 321         -- Step 3: load iframe which calls the actual flash procedure
 322         elseif step == 3 then
 323                 luci.template.render("admin_system/upgrade", {
 324                         step=3,
 325                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 326                 } )
 327         end
 328 end
 329
 330 function _keep_pattern()
 331         local kpattern = ""
 332         local files = luci.model.uci.cursor():get_all("luci", "flash_keep")
 333         if files then
 334                 kpattern = ""
 335                 for k, v in pairs(files) do
 336                         if k:sub(1,1) ~= "." and nixio.fs.glob(v)() then
 337                                 kpattern = kpattern .. " " ..  v
 338                         end
 339                 end
 340         end
 341         return kpattern
 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