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("base")
  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
  29         if nixio.fs.access("/etc/config/fstab") then
  30                 entry({"admin", "system", "fstab"}, cbi("admin_system/fstab"), i18n("Mount Points"), 50)
  31         end
  32
  33         if nixio.fs.access("/sys/class/leds") then
  34                 entry({"admin", "system", "leds"}, cbi("admin_system/leds"), i18n("<abbr title=\"Light Emitting Diode\">LED</abbr> Configuration"), 60)
  35         end
  36
  37         entry({"admin", "system", "backup"}, call("action_backup"), i18n("Backup / Restore"), 70)
  38         entry({"admin", "system", "upgrade"}, call("action_upgrade"), i18n("Flash Firmware"), 80)
  39         entry({"admin", "system", "reboot"}, call("action_reboot"), i18n("Reboot"), 90)
  40 end
  41
  42 function action_packages()
  43         local ipkg = require("luci.model.ipkg")
  44         local void = nil
  45         local submit = luci.http.formvalue("submit")
  46         local changes = false
  47
  48
  49         -- Search query
  50         local query = luci.http.formvalue("query")
  51         query = (query ~= '') and query or nil
  52
  53
  54         -- Packets to be installed
  55         local install = submit and luci.http.formvaluetable("install")
  56
  57         -- Install from URL
  58         local url = luci.http.formvalue("url")
  59         if url and url ~= '' and submit then
  60                 if not install then
  61                         install = {}
  62                 end
  63                 install[url] = 1
  64                 changes = true
  65         end
  66
  67         -- Do install
  68         if install then
  69                 for k, v in pairs(install) do
  70                         void, install[k] = ipkg.install(k)
  71                 end
  72                 changes = true
  73         end
  74
  75
  76         -- Remove packets
  77         local remove = submit and luci.http.formvaluetable("remove")
  78         if remove then
  79                 for k, v in pairs(remove) do
  80                         void, remove[k] = ipkg.remove(k)
  81                 end
  82                 changes = true
  83         end
  84
  85
  86         -- Update all packets
  87         local update = luci.http.formvalue("update")
  88         if update then
  89                 void, update = ipkg.update()
  90         end
  91
  92
  93         -- Upgrade all packets
  94         local upgrade = luci.http.formvalue("upgrade")
  95         if upgrade then
  96                 void, upgrade = ipkg.upgrade()
  97         end
  98
  99
 100         -- Package info
 101         local info = luci.model.ipkg.info(query and "*"..query.."*")
 102         info = info or {}
 103         local pkgs = {}
 104
 105         -- Sort after status and name
 106         for k, v in pairs(info) do
 107                 local x = 0
 108                 for i, j in pairs(pkgs) do
 109                         local vins = (v.Status and v.Status.installed)
 110                         local jins = (j.Status and j.Status.installed)
 111                         if vins ~= jins then
 112                                 if vins then
 113                                         break
 114                                 end
 115                         else
 116                                 if j.Package > v.Package then
 117                                         break
 118                                 end
 119                         end
 120                         x = i
 121                 end
 122                 table.insert(pkgs, x+1, v)
 123         end
 124
 125         luci.template.render("admin_system/packages", {pkgs=pkgs, query=query,
 126          install=install, remove=remove, update=update, upgrade=upgrade})
 127
 128         -- Remove index cache
 129         if changes then
 130                 nixio.fs.unlink("/tmp/luci-indexcache")
 131         end
 132 end
 133
 134 function action_backup()
 135         local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
 136         local restore_cmd = "tar -xzC/ >/dev/null 2>&1"
 137         local backup_cmd  = "tar -cz %s 2>/dev/null"
 138
 139         local restore_fpi
 140         luci.http.setfilehandler(
 141                 function(meta, chunk, eof)
 142                         if not restore_fpi then
 143                                 restore_fpi = io.popen(restore_cmd, "w")
 144                         end
 145                         if chunk then
 146                                 restore_fpi:write(chunk)
 147                         end
 148                         if eof then
 149                                 restore_fpi:close()
 150                         end
 151                 end
 152         )
 153
 154         local upload = luci.http.formvalue("archive")
 155         local backup = luci.http.formvalue("backup")
 156         local reset  = reset_avail and luci.http.formvalue("reset")
 157
 158         if upload and #upload > 0 then
 159                 luci.template.render("admin_system/applyreboot")
 160                 luci.sys.reboot()
 161         elseif backup then
 162                 local reader = ltn12_popen(backup_cmd:format(_keep_pattern()))
 163                 luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
 164                         luci.sys.hostname(), os.date("%Y-%m-%d")})
 165                 luci.http.prepare_content("application/x-targz")
 166                 luci.ltn12.pump.all(reader, luci.http.write)
 167         elseif reset then
 168                 luci.template.render("admin_system/applyreboot")
 169                 luci.util.exec("mtd -r erase rootfs_data")
 170         else
 171                 luci.template.render("admin_system/backup", {reset_avail = reset_avail})
 172         end
 173 end
 174
 175 function action_passwd()
 176         local p1 = luci.http.formvalue("pwd1")
 177         local p2 = luci.http.formvalue("pwd2")
 178         local stat = nil
 179
 180         if p1 or p2 then
 181                 if p1 == p2 then
 182                         stat = luci.sys.user.setpasswd("root", p1)
 183                 else
 184                         stat = 10
 185                 end
 186         end
 187
 188         luci.template.render("admin_system/passwd", {stat=stat})
 189 end
 190
 191 function action_reboot()
 192         local reboot = luci.http.formvalue("reboot")
 193         luci.template.render("admin_system/reboot", {reboot=reboot})
 194         if reboot then
 195                 luci.sys.reboot()
 196         end
 197 end
 198
 199 function action_upgrade()
 200         require("luci.model.uci")
 201
 202         local tmpfile = "/tmp/firmware.img"
 203
 204         local function image_supported()
 205                 -- XXX: yay...
 206                 return ( 0 == os.execute(
 207                         ". /etc/functions.sh; " ..
 208                         "include /lib/upgrade; " ..
 209                         "platform_check_image %q >/dev/null"
 210                                 % tmpfile
 211                 ) )
 212         end
 213
 214         local function image_checksum()
 215                 return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
 216         end
 217
 218         local function storage_size()
 219                 local size = 0
 220                 if nixio.fs.access("/proc/mtd") then
 221                         for l in io.lines("/proc/mtd") do
 222                                 local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
 223                                 if n == "linux" then
 224                                         size = tonumber(s, 16)
 225                                         break
 226                                 end
 227                         end
 228                 elseif nixio.fs.access("/proc/partitions") then
 229                         for l in io.lines("/proc/partitions") do
 230                                 local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
 231                                 if b and n and not n:match('[0-9]') then
 232                                         size = tonumber(b) * 1024
 233                                         break
 234                                 end
 235                         end
 236                 end
 237                 return size
 238         end
 239
 240
 241         -- Install upload handler
 242         local file
 243         luci.http.setfilehandler(
 244                 function(meta, chunk, eof)
 245                         if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
 246                                 file = io.open(tmpfile, "w")
 247                         end
 248                         if file and chunk then
 249                                 file:write(chunk)
 250                         end
 251                         if file and eof then
 252                                 file:close()
 253                         end
 254                 end
 255         )
 256
 257
 258         -- Determine state
 259         local keep_avail   = true
 260         local step         = tonumber(luci.http.formvalue("step") or 1)
 261         local has_image    = nixio.fs.access(tmpfile)
 262         local has_support  = image_supported()
 263         local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
 264         local has_upload   = luci.http.formvalue("image")
 265
 266         -- This does the actual flashing which is invoked inside an iframe
 267         -- so don't produce meaningful errors here because the the
 268         -- previous pages should arrange the stuff as required.
 269         if step == 4 then
 270                 if has_platform and has_image and has_support then
 271                         -- Mimetype text/plain
 272                         luci.http.prepare_content("text/plain")
 273
 274                         -- Now invoke sysupgrade
 275                         local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
 276                         local fd = io.popen("/sbin/luci-flash %s %q" %{
 277                                 keepcfg and "-k %q" % _keep_pattern() or "", tmpfile
 278                         })
 279
 280                         if fd then
 281                                 while true do
 282                                         local ln = fd:read("*l")
 283                                         if not ln then break end
 284                                         luci.http.write(ln .. "\n")
 285                                 end
 286                                 fd:close()
 287                         end
 288
 289                         -- Make sure the device is rebooted
 290                         luci.sys.reboot()
 291                 end
 292
 293
 294         --
 295         -- This is step 1-3, which does the user interaction and
 296         -- image upload.
 297         --
 298
 299         -- Step 1: file upload, error on unsupported image format
 300         elseif not has_image or not has_support or step == 1 then
 301                 -- If there is an image but user has requested step 1
 302                 -- or type is not supported, then remove it.
 303                 if has_image then
 304                         nixio.fs.unlink(tmpfile)
 305                 end
 306
 307                 luci.template.render("admin_system/upgrade", {
 308                         step=1,
 309                         bad_image=(has_image and not has_support or false),
 310                         keepavail=keep_avail,
 311                         supported=has_platform
 312                 } )
 313
 314         -- Step 2: present uploaded file, show checksum, confirmation
 315         elseif step == 2 then
 316                 luci.template.render("admin_system/upgrade", {
 317                         step=2,
 318                         checksum=image_checksum(),
 319                         filesize=nixio.fs.stat(tmpfile).size,
 320                         flashsize=storage_size(),
 321                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 322                 } )
 323
 324         -- Step 3: load iframe which calls the actual flash procedure
 325         elseif step == 3 then
 326                 luci.template.render("admin_system/upgrade", {
 327                         step=3,
 328                         keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
 329                 } )
 330         end
 331 end
 332
 333 function _keep_pattern()
 334         local kpattern = ""
 335         local files = luci.model.uci.cursor():get_all("luci", "flash_keep")
 336         if files then
 337                 kpattern = ""
 338                 for k, v in pairs(files) do
 339                         if k:sub(1,1) ~= "." and nixio.fs.glob(v)() then
 340                                 kpattern = kpattern .. " " ..  v
 341                         end
 342                 end
 343         end
 344         return kpattern
 345 end
 346
 347 function ltn12_popen(command)
 348
 349         local fdi, fdo = nixio.pipe()
 350         local pid = nixio.fork()
 351
 352         if pid > 0 then
 353                 fdo:close()
 354                 local close
 355                 return function()
 356                         local buffer = fdi:read(2048)
 357                         local wpid, stat = nixio.waitpid(pid, "nohang")
 358                         if not close and wpid and stat == "exited" then
 359                                 close = true
 360                         end
 361
 362                         if buffer and #buffer > 0 then
 363                                 return buffer
 364                         elseif close then
 365                                 fdi:close()
 366                                 return nil
 367                         end
 368                 end
 369         elseif pid == 0 then
 370                 nixio.dup(fdo, nixio.stdout)
 371                 fdi:close()
 372                 fdo:close()
 373                 nixio.exec("/bin/sh", "-c", command)
 374         end
 375 end