--- /dev/null
+--[[
+ Copyright (C) 2011 Pau Escrich <pau@dabax.net>
+ Contributors Jo-Philipp Wich <xm@subsignal.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+--]]
+
+local ltn12 = require("luci.ltn12")
+local json = require("luci.json")
+local util = require("luci.util")
+local uci = require("luci.model.uci")
+local sys = require("luci.sys")
+local template = require("luci.template")
+local http = require("luci.http")
+local string = require("string")
+local table = require("table")
+local nixio = require("nixio")
+local nixiofs = require("nixio.fs")
+local ipairs = ipairs
+
+module "luci.model.bmx6json"
+
+-- Returns a LUA object from bmx6 JSON daemon
+
+function get(field, host)
+ local url
+ if host ~= nil then
+ if host:match(":") then
+ url = 'http://[%s]/cgi-bin/bmx6-info?' % host
+ else
+ url = 'http://%s/cgi-bin/bmx6-info?' % host
+ end
+ else
+ url = uci.cursor():get("luci-bmx6","luci","json")
+ end
+
+ if url == nil then
+ print_error("bmx6 json url not configured, cannot fetch bmx6 daemon data",true)
+ return nil
+ end
+
+ local json_url = util.split(url,":")
+ local raw = ""
+
+ if json_url[1] == "http" then
+ raw,err = wget(url..field,1000)
+ else
+
+ if json_url[1] == "exec" then
+ raw = sys.exec(json_url[2]..' '..field)
+ else
+ print_error("bmx6 json url not recognized, cannot fetch bmx6 daemon data. Use http: or exec:",true)
+ return nil
+ end
+
+ end
+
+ local data = nil
+
+ if raw and raw:len() > 10 then
+ local decoder = json.Decoder()
+ ltn12.pump.all(ltn12.source.string(raw), decoder:sink())
+ data = decoder:get()
+-- else
+-- print_error("Cannot get data from bmx6 daemon",true)
+-- return nil
+ end
+
+ return data
+end
+
+function print_error(txt,popup)
+ util.perror(txt)
+ sys.call("logger -t bmx6json " .. txt)
+
+ if popup then
+ http.write('<script type="text/javascript">alert("Some error detected, please check it: '..txt..'");</script>')
+ else
+ http.write("<h1>Dammit! some error detected</h1>")
+ http.write("bmx6-luci: " .. txt)
+ http.write('<p><FORM><INPUT TYPE="BUTTON" VALUE="Go Back" ONCLICK="history.go(-1)"></FORM></p>')
+ end
+
+end
+
+function text2html(txt)
+ txt = string.gsub(txt,"<","{")
+ txt = string.gsub(txt,">","}")
+ txt = util.striptags(txt)
+ return txt
+end
+
+
+function wget(url, timeout)
+ local rfd, wfd = nixio.pipe()
+ local pid = nixio.fork()
+ if pid == 0 then
+ rfd:close()
+ nixio.dup(wfd, nixio.stdout)
+
+ local candidates = { "/usr/bin/wget", "/bin/wget" }
+ local _, bin
+ for _, bin in ipairs(candidates) do
+ if nixiofs.access(bin, "x") then
+ nixio.exec(bin, "-q", "-O", "-", url)
+ end
+ end
+ return
+ else
+ wfd:close()
+ rfd:setblocking(false)
+
+ local buffer = { }
+ local err1, err2
+
+ while true do
+ local ready = nixio.poll({{ fd = rfd, events = nixio.poll_flags("in") }}, timeout)
+ if not ready then
+ nixio.kill(pid, nixio.const.SIGKILL)
+ err1 = "timeout"
+ break
+ end
+
+ local rv = rfd:read(4096)
+ if rv then
+ -- eof
+ if #rv == 0 then
+ break
+ end
+
+ buffer[#buffer+1] = rv
+ else
+ -- error
+ if nixio.errno() ~= nixio.const.EAGAIN and
+ nixio.errno() ~= nixio.const.EWOULDBLOCK then
+ err1 = "error"
+ err2 = nixio.errno()
+ end
+ end
+ end
+
+ nixio.waitpid(pid, "nohang")
+ if not err1 then
+ return table.concat(buffer)
+ else
+ return nil, err1, err2
+ end
+ end
+end
+
+function getOptions(name)
+ -- Getting json and Checking if bmx6-json is avaiable
+ local options = get("options")
+ if options == nil or options.OPTIONS == nil then
+ m.message = "bmx6-json plugin is not running or some mistake in luci-bmx6 configuration, check /etc/config/luci-bmx6"
+ return nil
+ else
+ options = options.OPTIONS
+ end
+
+ -- Filtering by the option name
+ local i,_
+ local namedopt = nil
+ if name ~= nil then
+ for _,i in ipairs(options) do
+ if i.name == name and i.CHILD_OPTIONS ~= nil then
+ namedopt = i.CHILD_OPTIONS
+ break
+ end
+ end
+ end
+
+ return namedopt
+end
+
+-- Rturns a help string formated to be used in HTML scope
+function getHtmlHelp(opt)
+ if opt == nil then return nil end
+
+ local help = ""
+ if opt.help ~= nil then
+ help = text2html(opt.help)
+ end
+ if opt.syntax ~= nil then
+ help = help .. "<br/><b>Syntax: </b>" .. text2html(opt.syntax)
+ end
+
+ return help
+end
+
+function testandreload()
+ local test = sys.call('bmx6 -c --test > /tmp/bmx6-luci.err.tmp')
+ if test ~= 0 then
+ return sys.exec("cat /tmp/bmx6-luci.err.tmp")
+ end
+
+ local err = sys.call('bmx6 -c --configReload > /tmp/bmx6-luci.err.tmp')
+ if err ~= 0 then
+ return sys.exec("cat /tmp/bmx6-luci.err.tmp")
+ end
+
+ return nil
+end
+
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