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         local stdout  = { "" }
  51         local stderr  = { "" }
  52         local out, err
  53
  54         -- Search query
  55         local query = luci.http.formvalue("query")
  56         query = (query ~= '') and query or nil
  57
  58
  59         -- Packets to be installed
  60         local ninst = submit and luci.http.formvalue("install")
  61         local uinst = nil
  62
  63         -- Install from URL
  64         local url = luci.http.formvalue("url")
  65         if url and url ~= '' and submit then
  66                 uinst = url
  67         end
  68
  69         -- Do install
  70         if ninst then
  71                 install[ninst], out, err = ipkg.install(ninst)
  72                 stdout[#stdout+1] = out
  73                 stderr[#stderr+1] = err
  74                 changes = true
  75         end
  76
  77         if uinst then
  78                 install[uinst], out, err = ipkg.install(uinst)
  79                 stdout[#stdout+1] = out
  80                 stderr[#stderr+1] = err
  81                 changes = true
  82         end
  83
  84         -- Remove packets
  85         local rem = submit and luci.http.formvalue("remove")
  86         if rem then
  87                 remove[rem], out, err = ipkg.remove(rem)
  88                 stdout[#stdout+1] = out
  89                 stderr[#stderr+1] = err
  90                 changes = true
  91         end
  92
  93
  94         -- Update all packets
  95         local update = luci.http.formvalue("update")
  96         if update then
  97                 update, out, err = ipkg.update()
  98                 stdout[#stdout+1] = out
  99                 stderr[#stderr+1] = err
 100         end
 101
 102
 103         -- Upgrade all packets
 104         local upgrade = luci.http.formvalue("upgrade")
 105         if upgrade then
 106                 upgrade, out, err = ipkg.upgrade()
 107                 stdout[#stdout+1] = out
 108                 stderr[#stderr+1] = err
 109         end
 110
 111
 112         luci.template.render("admin_system/packages", {
 113                 query   = query,
 114                 install = install,
 115                 remove  = remove,
 116                 update  = update,
 117                 upgrade = upgrade,
 118                 stdout  = table.concat(stdout, ""),
 119                 stderr  = table.concat(stderr, "")
 120         })
 121
 122         -- Remove index cache
 123         if changes then
 124                 nixio.fs.unlink("/tmp/luci-indexcache")
 125         end
 126 end
 127
 128 function action_backup()
 129         local sys = require "luci.sys"
 130         local fs  = require "luci.fs"
 131
 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 -czT %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 filelist = "/tmp/luci-backup-list.%d" % os.time()
 160
 161                 sys.call(
 162                         "( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' /etc/sysupgrade.conf " ..
 163                         "/lib/upgrade/keep.d/* 2>/dev/null) -type f 2>/dev/null; " ..
 164                         "opkg list-changed-conffiles ) | sort -u > %s" % filelist
 165                 )
 166
 167                 if fs.access(filelist) then
 168                         local reader = ltn12_popen(backup_cmd:format(filelist))
 169                         luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
 170                                 luci.sys.hostname(), os.date("%Y-%m-%d")})
 171                         luci.http.prepare_content("application/x-targz")
 172                         luci.ltn12.pump.all(reader, luci.http.write)
 173                         fs.unlink(filelist)
 174                 end
 175         elseif reset then
 176                 luci.template.render("admin_system/applyreboot")
 177                 luci.util.exec("mtd -r erase rootfs_data")
 178         else
 179                 luci.template.render("admin_system/backup", {reset_avail = reset_avail})
 180         end
 181 end
 182
 183 function action_passwd()
 184         local p1 = luci.http.formvalue("pwd1")
 185         local p2 = luci.http.formvalue("pwd2")
 186         local stat = nil
 187
 188         if p1 or p2 then
 189                 if p1 == p2 then
 190                         stat = luci.sys.user.setpasswd("root", p1)
 191                 else
 192                         stat = 10
 193                 end
 194         end
 195
 196         luci.template.render("admin_system/passwd", {stat=stat})
 197 end
 198
 199 function action_reboot()
 200         local reboot = luci.http.formvalue("reboot")
 201         luci.template.render("admin_system/reboot", {reboot=reboot})
 202         if reboot then
 203                 luci.sys.reboot()
 204         end
 205 end
 206
 207 function action_upgrade()
 208         require("luci.model.uci")
 209
 210         local tmpfile = "/tmp/firmware.img"
 211
 212         local function image_supported()
 213                 -- XXX: yay...
 214                 return ( 0 == os.execute(
 215                         ". /etc/functions.sh; " ..
 216                         "include /lib/upgrade; " ..
 217                         "platform_check_image %q >/dev/null"
 218                                 % tmpfile
 219                 ) )
 220         end
 221
 222         local function image_checksum()
 223                 return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
 224         end
 225
 226         local function storage_size()
 227                 local size = 0
 228                 if nixio.fs.access("/proc/mtd") then
 229                         for l in io.lines("/proc/mtd") do
 230                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 231                                 if n == "linux" then
 232                                         size = tonumber(s, 16)
 233                                         break
 234                                 end
 235                         end
 236                 elseif nixio.fs.access("/proc/partitions") then
 237                         for l in io.lines("/proc/partitions") do
 238                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 239                                 if b and n and not n:match('[0-9]') then
 240                                         size = tonumber(b) * 1024
 241                                         break
 242                                 end
 243                         end
 244                 end
 245                 return size
 246         end
 247
 248
 249         -- Install upload handler
 250         local file
 251         luci.http.setfilehandler(
 252                 function(meta, chunk, eof)
 253                         if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
 254                                 file = io.open(tmpfile, "w")
 255                         end
 256                         if file and chunk then
 257                                 file:write(chunk)
 258                         end
 259                         if file and eof then
 260                                 file:close()
 261                         end
 262                 end
 263         )
 264
 265
 266         -- Determine state
 267         local keep_avail   = true
 268         local step         = tonumber(luci.http.formvalue("step") or 1)
 269         local has_image    = nixio.fs.access(tmpfile)
 270         local has_support  = image_supported()
 271         local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
 272         local has_upload   = luci.http.formvalue("image")
 273
 274         -- This does the actual flashing which is invoked inside an iframe
 275         -- so don't produce meaningful errors here because the the
 276         -- previous pages should arrange the stuff as required.
 277         if step == 4 then
 278                 if has_platform and has_image and has_support then
 279                         -- Mimetype text/plain
 280                         luci.http.prepare_content("text/plain")
 281                         luci.http.write("Starting sysupgrade...\n")
 282
 283                         io.flush()
 284
 285                         -- Now invoke sysupgrade
 286                         local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
 287                         local flash = ltn12_popen("/sbin/sysupgrade %s %q" %{
 288                                 keepcfg and "" or "-n", tmpfile
 289                         })
 290
 291                         luci.ltn12.pump.all(flash, luci.http.write)
 292                 end
 293
 294
 295         --
 296         -- This is step 1-3, which does the user interaction and
 297         -- image upload.
 298         --
 299
 300         -- Step 1: file upload, error on unsupported image format
 301         elseif not has_image or not has_support or step == 1 then
 302                 -- If there is an image but user has requested step 1
 303                 -- or type is not supported, then remove it.
 304                 if has_image then
 305                         nixio.fs.unlink(tmpfile)
 306                 end
 307
 308                 luci.template.render("admin_system/upgrade", {
 309                         step=1,
 310                         bad_image=(has_image and not has_support or false),
 311                         keepavail=keep_avail,
 312                         supported=has_platform
 313                 } )
 314
 315         -- Step 2: present uploaded file, show checksum, confirmation
 316         elseif step == 2 then
 317                 luci.template.render("admin_system/upgrade", {
 318                         step=2,
 319                         checksum=image_checksum(),
 320                         filesize=nixio.fs.stat(tmpfile).size,
 321                         flashsize=storage_size(),
 322                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 323                 } )
 324
 325         -- Step 3: load iframe which calls the actual flash procedure
 326         elseif step == 3 then
 327                 luci.template.render("admin_system/upgrade", {
 328                         step=3,
 329                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 330                 } )
 331         end
 332 end
 333
 334 function ltn12_popen(command)
 335
 336         local fdi, fdo = nixio.pipe()
 337         local pid = nixio.fork()
 338
 339         if pid > 0 then
 340                 fdo:close()
 341                 local close
 342                 return function()
 343                         local buffer = fdi:read(2048)
 344                         local wpid, stat = nixio.waitpid(pid, "nohang")
 345                         if not close and wpid and stat == "exited" then
 346                                 close = true
 347                         end
 348
 349                         if buffer and #buffer > 0 then
 350                                 return buffer
 351                         elseif close then
 352                                 fdi:close()
 353                                 return nil
 354                         end
 355                 end
 356         elseif pid == 0 then
 357                 nixio.dup(fdo, nixio.stdout)
 358                 fdi:close()
 359                 fdo:close()
 360                 nixio.exec("/bin/sh", "-c", command)
 361         end
 362 end