X-Git-Url: https://git.rvb.name/weathermon.git/blobdiff_plain/42bd3e809b0fa95d3a463462e242caf40d98bf79..817101e336c2e0812345e8583aed2dae3007c5be:/weathermon.lua

diff --git a/weathermon.lua b/weathermon.lua
index 20f5aca..af38729 100755
--- a/weathermon.lua
+++ b/weathermon.lua
@@ -1,28 +1,129 @@
 #!/usr/bin/lua
 
-function getConfig()
+require("json")
+require("socket")
+
+function startswith(String,Start)
+   if String then
+     return string.sub(String,1,string.len(Start))==Start
+   else
+     return False
+   end    
+end
+
+function url_encode(str)
+  if (str) then
+    str = string.gsub (str, "\n", "\r\n")
+    str = string.gsub (str, "([^%w %-%_%.%~])",
+        function (c) return string.format ("%%%02X", string.byte(c)) end)
+    str = string.gsub (str, " ", "+")
+  end
+  return str	
+end
+
+function capture(cmd, raw)
+  local f = assert(io.popen(cmd, 'r'))
+  local s = assert(f:read('*a'))
+  f:close()
+  if raw then return s end
+  s = string.gsub(s, '^%s+', '')
+  s = string.gsub(s, '%s+$', '')
+  s = string.gsub(s, '[\n\r]+', ' ')
+  return s
+end
+
+function mqtt_encode(str)
+  if (str) then
+    str = string.gsub (str, "\n", "")
+    str = string.gsub (str, "/", "-")
+  end
+  return str	
+end
+
+function getConfig(configname)
 
   local uci=require("uci")
   local cur=uci.cursor()
-  local config="weathermon"
+  local config
+  if configname then
+    config=configname
+  else
+    config="weathermon"
+  end
 
   web_url  = cur.get(config,"web","url")
   web_user = cur.get(config,"web","user")
   web_pass = cur.get(config,"web","password")
   web_devid = cur.get(config,"web","devid")
+
+  web_iface = cur.get(config,"web","iface")
+
+  if web_iface then
+  
+    command = '/sbin/ifconfig '..web_iface..' | grep \'\\<inet\\>\' | sed -n \'1p\' | tr -s \' \' | cut -d \' \' -f3 | cut -d \':\' -f2'
+    f=io.popen(command,'r')
+    ip_addr=f:read()
+  
+  end
+
+  if not web_devid then
   
-  io.input("/sys/class/net/eth0/address")
-  mac = io.read("*line")
-  mac = mac:gsub(":","")
-  mac = mac:upper()
+    if web_iface then
+      io.input("/sys/class/net/"..web_iface.."/address")
+    else
+      io.input("/sys/class/net/eth0/address")
+    end
+
+    mac = io.read("*line")
+    mac = mac:gsub(":","")
+    mac = mac:upper()
 
-  web_devid = web_devid or mac
+    web_devid = mac
+
+  end
 
   logging = cur.get(config,"logging","enabled") 
 
-end
+  serial_port = cur.get(config,"serial","port")
+  serial_baud = cur.get(config,"serial","baud")
+
+  input_file = cur.get(config,"input","file")
+  input_exec = cur.get(config,"input","exec")
+  alarm_exec = cur.get(config,"alarm","exec")
+
+  if serial_port then
+
+    command = "stty -F  "..serial_port.." "..serial_baud
+    capture(command)
 
-require "socket"
+  end
+
+  mqtt_host = cur.get(config,"mqtt","host")
+  mqtt_port = cur.get(config,"mqtt","port")
+  mqtt_id = cur.get(config,"mqtt","id")
+  mqtt_topic = cur.get(config,"mqtt","topic")
+  mqtt_alarm_topic = cur.get(config,"mqtt","alarm_topic")
+
+  mqtt_user = cur.get(config,"mqtt","user")
+  mqtt_passwd = cur.get(config,"mqtt","password")
+
+  if mqtt_host and not mqtt_id then
+    mqtt_id="weather-"..web_devid
+  end
+
+  if mqtt_host and not mqtt_port then
+    mqtt_port = 1883
+  end
+
+  if mqtt_host and not mqtt_topic then
+    mqtt_topic = 'weathermon/{dev}/{type}/{id}/{param}'
+  end
+
+  if mqtt_host and not mqtt_alarm_topic then
+    mqtt_alarm_topic = 'alarm/{dev}/{type}/{id}'
+  end
+
+end
 
 function sleep(sec)
   socket.select(nil, nil, sec)
@@ -33,7 +134,6 @@ function splitStr(str,char)
   local res = {}
   local idx = 1
 
-
   while str:len()>0 do
     pos = str:find(char); 
     if pos == nil then
@@ -51,39 +151,86 @@ function splitStr(str,char)
 end
 
 function printLog(str)
-  print(str)
   if logging=="on" then
-    os.execute("logger -t weathermon "..str)
+    capture("logger -t weathermon "..str)
+  else 
+    print(str)  
   end 
 end
 
 function submitValue(type,id,param,val)
 
-  printLog("URL="..web_url)
-
-  url = web_url.."?stype="..type.."&sid="..id.."&param="..param.."&value="..val
-
-  printLog(url)
+  url = web_url.."?stype="..url_encode(type).."&sid="..url_encode(id).."&param="..url_encode(param).."&value="..url_encode(val)
 
   command = "curl"
 
+  if web_iface then
+    command = command.." --interface "..ip_addr
+  end
+
   if web_user then
     command = command.." -u "..web_user..":"..web_pass
   end
 
   command = command.." \""..url.."\""
 
-  printLog("COMMAND=\""..command.."\"")
-  os.execute(command)
-  print("")
+  result = capture(command)
+
+end
+
+function processJson(str)
+
+  msg=json.decode(str)
+
+  sensor={}
+
+  for key,value in pairs(msg) do
+    if value then
+      if key=="model" then
+        sensor_type=value
+      elseif key=="id" then
+        sensor_id=value
+      elseif key=='time' then
+        sensor_time=value
+      else
+        sensor[key]=value
+      end
+    end
+  end
+
+  if not (sensor_type==nil or sensor_id==nil or sensor_type=='' or sensor_id=='') then
+    for k,v in pairs(sensor) do
+      printLog("Type = "..sensor_type..", ID = "..sensor_id..", Param = "..k..", Value = "..v)
+      submitValue(sensor_type,sensor_id,k,v)
+      if mqtt_client then
+        mqtt_path=string.gsub(mqtt_topic,"{(.-)}", 
+          function (name) 
+            if name=="dev" then
+              return mqtt_encode(web_devid)
+            elseif name=="type" then
+              return mqtt_encode(sensor_type)
+            elseif name=="id" then
+              return mqtt_encode(sensor_id)
+            elseif name=="param" then
+              return k
+            else
+              return '{'..name..'}'
+            end      
+          end)
+        mqtt_client:publish(mqtt_path,v)
+      end  
+    end
+  else
+    printLog("Cannot parse sensor input: "..msg_body)
+  end
 
 end
 
 function processLine(str)
 
   msg=splitStr(line,':')
-  msg_type=msg[1] or nil
-  msg_body=msg[2] or nil
+  msg_type=msg[1] or ''
+  msg_body=msg[2] or ''
   if msg_type=="STATUS" then
     printLog("Status: "..msg_body)
   elseif msg_type=="ERROR" then
@@ -97,8 +244,8 @@ function processLine(str)
     sensor_id = web_devid
     for i,rec in ipairs(sens) do
       recrd=splitStr(rec,'=')
-      key=recrd[1] or nil
-      value=recrd[2] or nil
+      key=recrd[1] or ''
+      value=recrd[2] or ''
       if value then
         if key=="TYPE" then
           sensor_type=value
@@ -109,16 +256,113 @@ function processLine(str)
         end
       end
     end
-    for k,v in pairs(sensor) do
-      printLog("Type = "..sensor_type..", ID = "..sensor_id..", Param = "..key..", Value = "..value)
-      submitValue(sensor_type,sensor_id,key,value)
+    if not (sensor_type==nil or sensor_id==nil or sensor_type=='' or sensor_id=='') then
+      for k,v in pairs(sensor) do
+        printLog("Type = "..sensor_type..", ID = "..sensor_id..", Param = "..k..", Value = "..v)
+        submitValue(sensor_type,sensor_id,k,v)
+        if mqtt_client then
+          mqtt_path=string.gsub(mqtt_topic,"{(.-)}", 
+            function (name) 
+              if name=="dev" then
+                return web_devid
+              elseif name=="type" then
+                return sensor_type
+              elseif name=="id" then
+                return sensor_id
+              elseif name=="param" then
+                return k
+              else
+                return '{'..name..'}'
+              end      
+            end)
+          mqtt_client:publish(mqtt_path,v)
+        end  
+      end
+    else
+      printLog("Cannot parse sensor input: "..msg_body)
+    end
+  elseif msg_type=="ALARM" then
+    printLog("ALARM: "..msg_body)  
+    sens = splitStr(msg_body,",")
+    sensor = {}
+    idx = 1
+    sensor_type = nil
+    sensor_id = web_devid
+    mqtt_param = {}
+    for i,rec in ipairs(sens) do
+      recrd=splitStr(rec,'=')
+      key=recrd[1] or ''
+      value=recrd[2] or ''
+      if value then
+        if key=="TYPE" then
+          alarm_type=value
+        elseif key=="ID" then
+          alarm_id=value
+        end
+      end
+    end
+    if not (alarm_type==nil or alarm_id==nil or alarm_type=='' or alarm_id=='') then
+      if mqtt_client then
+        mqtt_path=string.gsub(mqtt_alarm_topic,"{(.-)}", 
+          function (name) 
+            if name=="dev" then
+              return web_devid
+            elseif name=="type" then
+              return sensor_type
+            elseif name=="id" then
+              return sensor_id
+            else
+              return '{'..name..'}'
+            end      
+          end)
+        mqtt_client:publish(mqtt_path,msg_body)
+      end
+      if alarm_exec then
+        command=alarm_exec..
+          " \""..string.gsub(alarm_type,"\"","\\\"")..
+          "\" \""..string.gsub(alarm_id,"\"","\\\"")..
+          "\" \""..string.gsub(msg_body,"\"","\\\"").."\""
+        capture(command)
+      end
+    else
+      printLog("Cannot parse alarm input: "..msg_body)
     end
   end
 
 end
 
-getConfig()
+getConfig(arg[1])
+
+if mqtt_host then
+  MQTT = require "paho.mqtt"
+  mqtt_client = MQTT.client.create(mqtt_host, mqtt_port)
+  if mqtt_user then
+    mqtt_client:auth(mqtt_user, mqtt_passwd)
+  end
+  mqtt_client:connect(mqtt_id)
+end
 
-line=arg[1]
-print(line)
-processLine(line)
+if serial_port then
+  serialin=io.open(serial_port,"r")
+elseif input_file == "-" then
+  serialin=io.stdin;
+elseif input_file then
+  serialin=io.open(input_file,"r")
+elseif input_exec then
+  serialin=io.popen(input_exec,"r")
+else
+  printLog("No input selected")
+  return
+end  
+while 1 do
+  line=serialin:read()
+  if line == nil then
+    break
+  end
+  printLog("Received: "..line);
+  if startswith(line,'{') then
+    processJson(line)
+  else
+    processLine(line)
+  end
+end