gluon/package/gluon-web-admin/luasrc/lib/gluon/config-mode/controller/admin/upgrade.lua
Matthias Schiffer b1aa5390a7
gluon-config-mode-core: move gluon-web base path to /lib/gluon/config-mode
- CGI script and index.html are moved from gluon-web to
  gluon-config-mode-core, the script is renamed to 'config'
- gluon-web and gluon-web-model base views and i18n files are symlinked
  into the new path
- gluon-web-theme is renamed to gluon-config-mode-theme and installs
  directly into the new path
- all gluon-web-* models, controllers and views are moved into the new
  path
2018-02-26 00:07:13 +01:00

140 lines
3.6 KiB
Lua

--[[
Copyright 2008 Steven Barth <steven@midlink.org>
Copyright 2008 Jo-Philipp Wich <xm@leipzig.freifunk.net>
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
]]--
package 'gluon-web-admin'
local util = require 'gluon.util'
local fs = require 'nixio.fs'
local tmpfile = "/tmp/firmware.img"
local function filehandler(meta, chunk, eof)
if not 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
local function action_upgrade(http, renderer)
local nixio = require 'nixio'
local function fork_exec(...)
local pid = nixio.fork()
if pid > 0 then
return
elseif pid == 0 then
-- change to root dir
nixio.chdir("/")
-- patch stdin, out, err to /dev/null
local null = nixio.open("/dev/null", "w+")
if null then
nixio.dup(null, nixio.stderr)
nixio.dup(null, nixio.stdout)
nixio.dup(null, nixio.stdin)
if null:fileno() > 2 then
null:close()
end
end
-- Sleep a little so the browser can fetch everything required to
-- display the reboot page, then reboot the device.
nixio.nanosleep(1)
-- replace with target command
nixio.exec(...)
end
end
local function image_supported(tmpfile)
return (os.execute(string.format("exec /sbin/sysupgrade -T %q >/dev/null", tmpfile)) == 0)
end
local function storage_size()
local size = 0
if 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 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
local function image_checksum(tmpfile)
return (util.exec(string.format("exec md5sum %q", tmpfile)):match("^([^%s]+)"))
end
-- Determine state
local step = tonumber(http:getenv("REQUEST_METHOD") == "POST" and http:formvalue("step")) or 1
local has_image = fs.access(tmpfile)
local has_support = has_image and image_supported(tmpfile)
-- Step 1: file upload, error on unsupported image format
if step == 1 or not has_support then
-- If there is an image but user has requested step 1
-- or type is not supported, then remove it.
if has_image then
fs.unlink(tmpfile)
end
renderer.render_layout('admin/upgrade', {
bad_image = has_image and not has_support,
}, 'gluon-web-admin')
-- Step 2: present uploaded file, show checksum, confirmation
elseif step == 2 then
renderer.render_layout('admin/upgrade_confirm', {
checksum = image_checksum(tmpfile),
filesize = fs.stat(tmpfile).size,
flashsize = storage_size(),
keepconfig = (http:formvalue("keepcfg") == "1"),
}, 'gluon-web-admin')
elseif step == 3 then
if http:formvalue("keepcfg") == "1" then
fork_exec("/sbin/sysupgrade", tmpfile)
else
fork_exec("/sbin/sysupgrade", "-n", tmpfile)
end
renderer.render_layout('admin/upgrade_reboot', nil, 'gluon-web-admin', {
hidenav = true,
})
end
end
local has_platform = fs.access("/lib/upgrade/platform.sh")
if has_platform then
local upgrade = entry({"admin", "upgrade"}, call(action_upgrade), _("Upgrade firmware"), 90)
upgrade.filehandler = filehandler
end