265 lines
No EOL
6.7 KiB
Lua
265 lines
No EOL
6.7 KiB
Lua
--[[
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LuCI - Lua Development Framework
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Copyright 2009 Steven Barth <steven@midlink.org>
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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$Id$
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]]--
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local require, pairs, unpack, tonumber = require, pairs, unpack, tonumber
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module "luci.controller.niu.system"
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function index()
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local toniu = {on_success_to={"niu"}}
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local e = entry({"niu", "system"}, alias("niu"), "System", 40)
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e.niu_dbtemplate = "niu/system"
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e.niu_dbtasks = true
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e.niu_dbicon = "icons32/preferences-system.png"
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entry({"niu", "system", "general"},
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cbi("niu/system/general", toniu), "Configure Device", 1)
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entry({"niu", "system", "backup"}, call("backup"), "Backup or Restore Settings", 2)
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entry({"niu", "system", "upgrade"}, call("upgrade"), "Upgrade Firmware", 30)
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end
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function backup()
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local dsp = require "luci.dispatcher"
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local os, io = require "os", require "io"
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local uci = require "luci.model.uci".inst
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local nixio, nutl = require "nixio", require "nixio.util"
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local fs = require "nixio.fs"
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local http = require "luci.http"
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local tpl = require "luci.template"
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local restore_fpi
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http.setfilehandler(
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function(meta, chunk, eof)
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if not restore_fpi then
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restore_fpi = io.popen("tar -xzC/ >/dev/null 2>&1", "w")
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end
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if chunk then
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restore_fpi:write(chunk)
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end
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if eof then
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restore_fpi:close()
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end
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end
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)
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local reset_avail = (fs.readfile("/proc/mtd") or ""):find('"rootfs_data"')
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local upload = http.formvalue("archive")
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local backup = http.formvalue("backup")
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local reset = reset_avail and http.formvalue("reset")
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local backup_cmd = "tar -cz %s 2>/dev/null"
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if http.formvalue("cancel") then
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return http.redirect(dsp.build_url("niu"))
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end
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if backup then
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local call = {"/bin/tar", "-cz"}
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for k, v in pairs(uci:get_all("luci", "flash_keep")) do
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if k:byte() ~= 46 then -- k[1] ~= "."
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nutl.consume(fs.glob(v), call)
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end
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end
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http.header(
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'Content-Disposition', 'attachment; filename="backup-%s-%s.tar.gz"' % {
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nixio.uname().nodename, os.date("%Y-%m-%d")
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}
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)
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http.prepare_content("application/x-targz")
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local fdin, fdout = nixio.pipe()
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local devnull = nixio.open("/dev/null", "r+")
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local proc = nixio.fork()
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if proc == 0 then
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fdin:close()
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nixio.dup(devnull, nixio.stdin)
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nixio.dup(devnull, nixio.stderr)
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nixio.dup(fdout, nixio.stdout)
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nixio.exec(unpack(call))
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os.exit(1)
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end
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fdout:close()
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http.splice(fdin)
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http.close()
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elseif (upload and #upload > 0) or reset then
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tpl.render("niu/system/reboot")
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if nixio.fork() == 0 then
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nixio.nanosleep(1)
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if reset then
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nixio.execp("mtd", "-r", "erase", "rootfs_data")
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else
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nixio.execp("reboot")
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end
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os.exit(1)
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end
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else
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tpl.render("niu/system/backup", {reset_avail = reset_avail})
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end
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end
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function upgrade()
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local io, os, table = require "io", require "os", require "table"
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local uci = require "luci.store".uci_state
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local http = require "luci.http"
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local util = require "luci.util"
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local tpl = require "luci.template"
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local nixio = require "nixio", require "nixio.util", require "nixio.fs"
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local tmpfile = "/tmp/firmware.img"
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local function image_supported()
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-- XXX: yay...
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return ( 0 == os.execute(
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". /etc/functions.sh; " ..
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"include /lib/upgrade; " ..
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"platform_check_image %q >/dev/null"
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% tmpfile
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) )
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end
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local function image_checksum()
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return (util.exec("md5sum %q" % tmpfile):match("^([^%s]+)"))
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end
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local function storage_size()
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local size = 0
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if nixio.fs.access("/proc/mtd") then
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for l in io.lines("/proc/mtd") do
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local d, s, e, n = l:match('^([^%s]+)%s+([^%s]+)%s+([^%s]+)%s+"([^%s]+)"')
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if n == "linux" then
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size = tonumber(s, 16)
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break
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end
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end
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elseif nixio.fs.access("/proc/partitions") then
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for l in io.lines("/proc/partitions") do
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local x, y, b, n = l:match('^%s*(%d+)%s+(%d+)%s+([^%s]+)%s+([^%s]+)')
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if b and n and not n:match('[0-9]') then
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size = tonumber(b) * 1024
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break
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end
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end
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end
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return size
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end
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-- Install upload handler
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local file
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http.setfilehandler(
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function(meta, chunk, eof)
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if not nixio.fs.access(tmpfile) and not file and chunk and #chunk > 0 then
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file = io.open(tmpfile, "w")
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end
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if file and chunk then
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file:write(chunk)
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end
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if file and eof then
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file:close()
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end
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end
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)
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-- Determine state
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local keep_avail = true
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local step = tonumber(http.formvalue("step") or 1)
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local has_image = nixio.fs.access(tmpfile)
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local has_support = image_supported()
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local has_platform = nixio.fs.access("/lib/upgrade/platform.sh")
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local has_upload = http.formvalue("image")
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-- This does the actual flashing which is invoked inside an iframe
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-- so don't produce meaningful errors here because the the
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-- previous pages should arrange the stuff as required.
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if step == 4 then
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if has_platform and has_image and has_support then
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-- Mimetype text/plain
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http.prepare_content("text/plain")
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local call = {}
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for k, v in pairs(uci:get_all("luci", "flash_keep")) do
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if k:byte() ~= 46 then -- k[1] ~= "."
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nixio.util.consume(nixio.fs.glob(v), call)
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end
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end
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-- Now invoke sysupgrade
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local keepcfg = keep_avail and http.formvalue("keepcfg") == "1"
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local fd = io.popen("/sbin/luci-flash %s %q" %{
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keepcfg and "-k %q" % table.concat(call, " ") or "", tmpfile
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})
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if fd then
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while true do
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local ln = fd:read("*l")
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if not ln then break end
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http.write(ln .. "\n")
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end
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fd:close()
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end
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-- Make sure the device is rebooted
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if nixio.fork() == 0 then
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nixio.nanosleep(1)
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nixio.execp("reboot")
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os.exit(1)
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end
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end
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--
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-- This is step 1-3, which does the user interaction and
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-- image upload.
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--
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-- Step 1: file upload, error on unsupported image format
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elseif not has_image or not has_support or step == 1 then
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-- If there is an image but user has requested step 1
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-- or type is not supported, then remove it.
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if has_image then
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nixio.fs.unlink(tmpfile)
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end
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tpl.render("niu/system/upgrade", {
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step=1,
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bad_image=(has_image and not has_support or false),
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keepavail=keep_avail,
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supported=has_platform
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} )
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-- Step 2: present uploaded file, show checksum, confirmation
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elseif step == 2 then
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tpl.render("niu/system/upgrade", {
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step=2,
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checksum=image_checksum(),
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filesize=nixio.fs.stat(tmpfile).size,
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flashsize=storage_size(),
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keepconfig=(keep_avail and http.formvalue("keepcfg") == "1")
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} )
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-- Step 3: load iframe which calls the actual flash procedure
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elseif step == 3 then
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tpl.render("niu/system/upgrade", {
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step=3,
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keepconfig=(keep_avail and http.formvalue("keepcfg") == "1")
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} )
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end
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end |