-- Copyright 2008 Steven Barth <steven@midlink.org>
-- Copyright 2008 Jo-Philipp Wich <jow@openwrt.org>
-- Licensed to the public under the Apache License 2.0.
module("luci.controller.mini.system", package.seeall)
function index()
entry({"mini", "system"}, alias("mini", "system", "index"), _("System"), 40).index = true
entry({"mini", "system", "index"}, cbi("mini/system", {autoapply=true}), _("General"), 1)
entry({"mini", "system", "passwd"}, form("mini/passwd"), _("Admin Password"), 10)
entry({"mini", "system", "backup"}, call("action_backup"), _("Backup / Restore"), 80)
entry({"mini", "system", "upgrade"}, call("action_upgrade"), _("Flash Firmware"), 90)
entry({"mini", "system", "reboot"}, call("action_reboot"), _("Reboot"), 100)
end
function action_backup()
local reset_avail = os.execute([[grep '"rootfs_data"' /proc/mtd >/dev/null 2>&1]]) == 0
local restore_cmd = "gunzip | tar -xC/ >/dev/null 2>&1"
local backup_cmd = "tar -c %s | gzip 2>/dev/null"
local restore_fpi
luci.http.setfilehandler(
function(meta, chunk, eof)
if not restore_fpi then
restore_fpi = io.popen(restore_cmd, "w")
end
if chunk then
restore_fpi:write(chunk)
end
if eof then
restore_fpi:close()
end
end
)
local upload = luci.http.formvalue("archive")
local backup = luci.http.formvalue("backup")
local reset = reset_avail and luci.http.formvalue("reset")
if upload and #upload > 0 then
luci.template.render("mini/applyreboot")
luci.sys.reboot()
elseif backup then
local reader = ltn12_popen(backup_cmd:format(_keep_pattern()))
luci.http.header('Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
luci.sys.hostname(), os.date("%Y-%m-%d")})
luci.http.prepare_content("application/x-targz")
luci.ltn12.pump.all(reader, luci.http.write)
elseif reset then
luci.template.render("mini/applyreboot")
luci.util.exec("mtd -r erase rootfs_data")
else
luci.template.render("mini/backup", {reset_avail = reset_avail})
end
end
function action_reboot()
local reboot = luci.http.formvalue("reboot")
luci.template.render("mini/reboot", {reboot=reboot})
if reboot then
luci.sys.reboot()
end
end
function action_upgrade()
require("luci.model.uci")
local tmpfile = "/tmp/firmware.img"
local function image_supported()
-- XXX: yay...
return ( 0 == os.execute(
". /lib/functions.sh; " ..
"include /lib/upgrade; " ..
"platform_check_image %q >/dev/null"
% tmpfile
) )
end
local function image_checksum()
return (luci.sys.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
end
local function storage_size()
local size = 0
if nixio.fs.access("/proc/mtd") then
for l in io.lines("/proc/mtd") do
local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
if n == "linux" then
size = tonumber(s, 16)
break
end
end
elseif nixio.fs.access("/proc/partitions") then
for l in io.lines("/proc/partitions") do
local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
if b and n and not n:match('[0-9]') then
size = tonumber(b) * 1024
break
end
end
end
return size
end
-- Install upload handler
local file
luci.http.setfilehandler(
function(meta, chunk, eof)
if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
file = io.open(tmpfile, "w")
end
if file and chunk then
file:write(chunk)
end
if file and eof then
file:close()
end
end
)
-- Determine state
local keep_avail = true
local step = tonumber(luci.http.formvalue("step") or 1)
local has_image = nixio.fs.access(tmpfile)
local has_support = image_supported()
local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
local has_upload = luci.http.formvalue("image")
-- This does the actual flashing which is invoked inside an iframe
-- so don't produce meaningful errors here because the the
-- previous pages should arrange the stuff as required.
if step == 4 then
if has_platform and has_image and has_support then
-- Mimetype text/plain
luci.http.prepare_content("text/plain")
luci.http.write("Starting luci-flash...\n")
-- Now invoke sysupgrade
local keepcfg = keep_avail and luci.http.formvalue("keepcfg") == "1"
local flash = ltn12_popen("/sbin/luci-flash %s %q" %{
keepcfg and "-k %q" % _keep_pattern() or "", tmpfile
})
luci.ltn12.pump.all(flash, luci.http.write)
-- Make sure the device is rebooted
luci.sys.reboot()
end
--
-- This is step 1-3, which does the user interaction and
-- image upload.
--
-- Step 1: file upload, error on unsupported image format
elseif not has_image or not has_support or step == 1 then
-- If there is an image but user has requested step 1
-- or type is not supported, then remove it.
if has_image then
nixio.fs.unlink(tmpfile)
end
luci.template.render("mini/upgrade", {
step=1,
bad_image=(has_image and not has_support or false),
keepavail=keep_avail,
supported=has_platform
} )
-- Step 2: present uploaded file, show checksum, confirmation
elseif step == 2 then
luci.template.render("mini/upgrade", {
step=2,
checksum=image_checksum(),
filesize=nixio.fs.stat(tmpfile).size,
flashsize=storage_size(),
keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
} )
-- Step 3: load iframe which calls the actual flash procedure
elseif step == 3 then
luci.template.render("mini/upgrade", {
step=3,
keepconfig=(keep_avail and luci.http.formvalue("keepcfg") == "1")
} )
end
end
function _keep_pattern()
local kpattern = ""
local files = luci.model.uci.cursor():get_all("luci", "flash_keep")
if files then
kpattern = ""
for k, v in pairs(files) do
if k:sub(1,1) ~= "." and nixio.fs.glob(v)() then
kpattern = kpattern .. " " .. v
end
end
end
return kpattern
end
function ltn12_popen(command)
local fdi, fdo = nixio.pipe()
local pid = nixio.fork()
if pid > 0 then
fdo:close()
local close
return function()
local buffer = fdi:read(2048)
local wpid, stat = nixio.waitpid(pid, "nohang")
if not close and wpid and stat == "exited" then
close = true
end
if buffer and #buffer > 0 then
return buffer
elseif close then
fdi:close()
return nil
end
end
elseif pid == 0 then
nixio.dup(fdo, nixio.stdout)
fdi:close()
fdo:close()
nixio.exec("/bin/sh", "-c", command)
end
end