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", "packages"}, call("action_packages"), i18n("Software"), 10)
  25         entry({"admin", "system", "packages", "ipkg"}, form("admin_system/ipkg"))
  26         entry({"admin", "system", "passwd"}, form("admin_system/passwd"), i18n("Admin Password"), 20)
  27         entry({"admin", "system", "sshkeys"}, form("admin_system/sshkeys"), i18n("<abbr title=\"Secure Shell\">SSH</abbr>-Keys"), 30)
  28         entry({"admin", "system", "processes"}, form("admin_system/processes"), i18n("Processes"), 45)
  29
  30         if nixio.fs.access("/etc/config/fstab") then
  31                 entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), i18n("Mount Points"), 50)
  32         end
  33
  34         if nixio.fs.access("/sys/class/leds") then
  35                 entry({"admin", "system", "leds"}, cbi("admin_system/leds"), i18n("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
  36         end
  37
  38         entry({"admin", "system", "backup"}, call("action_backup"), i18n("Backup / Restore"), 70)
  39         entry({"admin", "system", "upgrade"}, call("action_upgrade"), i18n("Flash Firmware"), 80)
  40         entry({"admin", "system", "reboot"}, call("action_reboot"), i18n("Reboot"), 90)
  41 end
  42
  43 function action_packages()
  44         local ipkg = require("luci.model.ipkg")
  45         local submit = luci.http.formvalue("submit")
  46         local changes = false
  47         local install = { }
  48         local remove  = { }
  49
  50         -- Search query
  51         local query = luci.http.formvalue("query")
  52         query = (query ~= '') and query or nil
  53
  54
  55         -- Packets to be installed
  56         local ninst = submit and luci.http.formvalue("install")
  57         local uinst = nil
  58
  59         -- Install from URL
  60         local url = luci.http.formvalue("url")
  61         if url and url ~= '' and submit then
  62                 uinst = url
  63         end
  64
  65         -- Do install
  66         if ninst then
  67                 _, install[ninst] = ipkg.install(ninst)
  68                 changes = true
  69         end
  70
  71         if uinst then
  72                 _, install[uinst] = ipkg.install(uinst)
  73                 changes = true
  74         end
  75
  76         -- Remove packets
  77         local rem = submit and luci.http.formvalue("remove")
  78         if rem then
  79                 _, remove[rem] = ipkg.remove(rem)
  80                 changes = true
  81         end
  82
  83
  84         -- Update all packets
  85         local update = luci.http.formvalue("update")
  86         if update then
  87                 _, update = ipkg.update()
  88         end
  89
  90
  91         -- Upgrade all packets
  92         local upgrade = luci.http.formvalue("upgrade")
  93         if upgrade then
  94                 _, upgrade = ipkg.upgrade()
  95         end
  96
  97
  98         luci.template.render("admin_system/packages", {
  99                 query=query, install=install, remove=remove, update=update, upgrade=upgrade
 100         })
 101
 102         -- Remove index cache
 103         if changes then
 104                 nixio.fs.unlink("/tmp/luci-indexcache")
 105         end
 106 end
 107
 108 function action_backup()
 109         local sys = require "luci.sys"
 110         local fs  = require "luci.fs"
 111
 112         local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
 113         local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
 114         local backup_cmd  = "tar -czT %s 2>/dev/null"
 115
 116         local restore_fpi
 117         luci.http.setfilehandler(
 118                 function(meta, chunk, eof)
 119                         if not restore_fpi then
 120                                 restore_fpi = io.popen(restore_cmd, "w")
 121                         end
 122                         if chunk then
 123                                 restore_fpi:write(chunk)
 124                         end
 125                         if eof then
 126                                 restore_fpi:close()
 127                         end
 128                 end
 129         )
 130
 131         local upload = luci.http.formvalue("archive")
 132         local backup = luci.http.formvalue("backup")
 133         local reset  = reset_avail and luci.http.formvalue("reset")
 134
 135         if upload and #upload > 0 then
 136                 luci.template.render("admin_system/applyreboot")
 137                 luci.sys.reboot()
 138         elseif backup then
 139                 local filelist = "/tmp/luci-backup-list.%d" % os.time()
 140
 141                 sys.call(
 142                         "( find $(sed -ne '/^[[:space:]]*$/d; /^#/d; p' /etc/sysupgrade.conf " ..
 143                         "/lib/upgrade/keep.d/* 2>/dev/null) -type f 2>/dev/null; " ..
 144                         "opkg list-changed-conffiles ) | sort -u > %s" % filelist
 145                 )
 146
 147                 if fs.access(filelist) then
 148                         local reader = ltn12_popen(backup_cmd:format(filelist))
 149                         luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
 150                                 luci.sys.hostname(), os.date("%Y-%m-%d")})
 151                         luci.http.prepare_content("application/x-targz")
 152                         luci.ltn12.pump.all(reader, luci.http.write)
 153                         fs.unlink(filelist)
 154                 end
 155         elseif reset then
 156                 luci.template.render("admin_system/applyreboot")
 157                 luci.util.exec("mtd -r erase rootfs_data")
 158         else
 159                 luci.template.render("admin_system/backup", {reset_avail = reset_avail})
 160         end
 161 end
 162
 163 function action_passwd()
 164         local p1 = luci.http.formvalue("pwd1")
 165         local p2 = luci.http.formvalue("pwd2")
 166         local stat = nil
 167
 168         if p1 or p2 then
 169                 if p1 == p2 then
 170                         stat = luci.sys.user.setpasswd("root", p1)
 171                 else
 172                         stat = 10
 173                 end
 174         end
 175
 176         luci.template.render("admin_system/passwd", {stat=stat})
 177 end
 178
 179 function action_reboot()
 180         local reboot = luci.http.formvalue("reboot")
 181         luci.template.render("admin_system/reboot", {reboot=reboot})
 182         if reboot then
 183                 luci.sys.reboot()
 184         end
 185 end
 186
 187 function action_upgrade()
 188         require("luci.model.uci")
 189
 190         local tmpfile = "/tmp/firmware.img"
 191
 192         local function image_supported()
 193                 -- XXX: yay...
 194                 return ( 0 == os.execute(
 195                         ". /etc/functions.sh; " ..
 196                         "include /lib/upgrade; " ..
 197                         "platform_check_image %q >/dev/null"
 198                                 % tmpfile
 199                 ) )
 200         end
 201
 202         local function image_checksum()
 203                 return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
 204         end
 205
 206         local function storage_size()
 207                 local size = 0
 208                 if nixio.fs.access("/proc/mtd") then
 209                         for l in io.lines("/proc/mtd") do
 210                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 211                                 if n == "linux" then
 212                                         size = tonumber(s, 16)
 213                                         break
 214                                 end
 215                         end
 216                 elseif nixio.fs.access("/proc/partitions") then
 217                         for l in io.lines("/proc/partitions") do
 218                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 219                                 if b and n and not n:match('[0-9]') then
 220                                         size = tonumber(b) * 1024
 221                                         break
 222                                 end
 223                         end
 224                 end
 225                 return size
 226         end
 227
 228
 229         -- Install upload handler
 230         local file
 231         luci.http.setfilehandler(
 232                 function(meta, chunk, eof)
 233                         if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
 234                                 file = io.open(tmpfile, "w")
 235                         end
 236                         if file and chunk then
 237                                 file:write(chunk)
 238                         end
 239                         if file and eof then
 240                                 file:close()
 241                         end
 242                 end
 243         )
 244
 245
 246         -- Determine state
 247         local keep_avail   = true
 248         local step         = tonumber(luci.http.formvalue("step") or 1)
 249         local has_image    = nixio.fs.access(tmpfile)
 250         local has_support  = image_supported()
 251         local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
 252         local has_upload   = luci.http.formvalue("image")
 253
 254         -- This does the actual flashing which is invoked inside an iframe
 255         -- so don't produce meaningful errors here because the the
 256         -- previous pages should arrange the stuff as required.
 257         if step == 4 then
 258                 if has_platform and has_image and has_support then
 259                         -- Mimetype text/plain
 260                         luci.http.prepare_content("text/plain")
 261                         luci.http.write("Starting sysupgrade...\n")
 262
 263                         io.flush()
 264
 265                         -- Now invoke sysupgrade
 266                         local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
 267                         local flash = ltn12_popen("/sbin/sysupgrade %s %q" %{
 268                                 keepcfg and "" or "-n", tmpfile
 269                         })
 270
 271                         luci.ltn12.pump.all(flash, luci.http.write)
 272                 end
 273
 274
 275         --
 276         -- This is step 1-3, which does the user interaction and
 277         -- image upload.
 278         --
 279
 280         -- Step 1: file upload, error on unsupported image format
 281         elseif not has_image or not has_support or step == 1 then
 282                 -- If there is an image but user has requested step 1
 283                 -- or type is not supported, then remove it.
 284                 if has_image then
 285                         nixio.fs.unlink(tmpfile)
 286                 end
 287
 288                 luci.template.render("admin_system/upgrade", {
 289                         step=1,
 290                         bad_image=(has_image and not has_support or false),
 291                         keepavail=keep_avail,
 292                         supported=has_platform
 293                 } )
 294
 295         -- Step 2: present uploaded file, show checksum, confirmation
 296         elseif step == 2 then
 297                 luci.template.render("admin_system/upgrade", {
 298                         step=2,
 299                         checksum=image_checksum(),
 300                         filesize=nixio.fs.stat(tmpfile).size,
 301                         flashsize=storage_size(),
 302                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 303                 } )
 304
 305         -- Step 3: load iframe which calls the actual flash procedure
 306         elseif step == 3 then
 307                 luci.template.render("admin_system/upgrade", {
 308                         step=3,
 309                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 310                 } )
 311         end
 312 end
 313
 314 function ltn12_popen(command)
 315
 316         local fdi, fdo = nixio.pipe()
 317         local pid = nixio.fork()
 318
 319         if pid > 0 then
 320                 fdo:close()
 321                 local close
 322                 return function()
 323                         local buffer = fdi:read(2048)
 324                         local wpid, stat = nixio.waitpid(pid, "nohang")
 325                         if not close and wpid and stat == "exited" then
 326                                 close = true
 327                         end
 328
 329                         if buffer and #buffer > 0 then
 330                                 return buffer
 331                         elseif close then
 332                                 fdi:close()
 333                                 return nil
 334                         end
 335                 end
 336         elseif pid == 0 then
 337                 nixio.dup(fdo, nixio.stdout)
 338                 fdi:close()
 339                 fdo:close()
 340                 nixio.exec("/bin/sh", "-c", command)
 341         end
 342 end