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