[fsync] POST the config of each sensor to the /sensor/xyz endpoint
This commit is contained in:
Bart Van Der Meerssche
parent
609cea6f22
commit
77193070e4
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@ -27,6 +27,10 @@ local dbg = require 'dbg'
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local nixio = require 'nixio'
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nixio.fs = require 'nixio.fs'
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local uci = require 'luci.model.uci'.cursor()
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local luci = require 'luci'
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luci.json = require 'luci.json'
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local httpclient = require 'luci.httpclient'
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local HW_CHECK_OVERRIDE = (arg[1] == '-f')
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@ -50,6 +54,7 @@ local SYNC_TO_SERVER = (flukso.daemon.enable_wan_branch == '1')
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local METERCONST_FACTOR = 0.449
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-- sensor board commands
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local GET_HW_VERSION = 'gh'
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local GET_HW_VERSION_R = '^gh%s+(%d+)%s+(%d+)$'
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local SET_ENABLE = 'se %d %d'
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@ -58,10 +63,23 @@ local SET_METERCONST = 'sm %d %d'
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local SET_COUNTER = 'sc %d %d'
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local COMMIT = 'ct'
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-- LAN settings
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local API_PATH = '/www/sensor/'
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local CGI_SCRIPT = '/usr/bin/restful'
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local AVAHI_PATH = '/etc/avahi/services/flukso.service'
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-- WAN settings
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local WAN_BASE_URL = flukso.daemon.wan_base_url .. 'device/'
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local WAN_KEY = '0123456789abcdef0123456789abcdef'
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uci:foreach('system', 'system', function(x) WAN_KEY = x.key end) -- quirky but it works
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-- https header helpers
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local FLUKSO_VERSION = '000'
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uci:foreach('system', 'system', function(x) FLUKSO_VERSION = x.version end)
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local USER_AGENT = 'Fluksometer v' .. FLUKSO_VERSION
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local CACERT = flukso.daemon.cacert
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--- Convert from Lua-style to c-style index.
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-- @param index Lua-style index startng at 1
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@ -74,8 +92,6 @@ end
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-- @param code exit status code
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-- @return none
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local function exit(code)
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nixio.openlog('fsync', 'pid')
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local level
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if code == 0 then
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@ -377,6 +393,85 @@ local function create_avahi_config()
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end
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end
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--- POST each sensor's parameters to the /sensor/xyz endpoint
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-- @return none
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local function phone_home()
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local function json_config(i) -- type(i) --> "string"
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local config = {}
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config["class"] = flukso[i]["class"]
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config["type"] = flukso[i]["type"]
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config["function"] = flukso[i]["function"]
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config["voltage"] = tonumber(flukso[i]["voltage"])
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config["current"] = tonumber(flukso[i]["current"])
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config["constant"] = tonumber(flukso[i]["constant"])
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config["enable"] = tonumber(flukso[i]["enable"])
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return luci.json.encode{ config = config }
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end
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local headers = {}
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headers['Content-Type'] = 'application/json'
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headers['X-Version'] = '1.0'
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headers['User-Agent'] = USER_AGENT
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local options = {}
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options.sndtimeo = 5
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options.rcvtimeo = 5
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options.tls_context_set_verify = 'peer'
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options.cacert = CACERT
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options.method = 'POST'
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options.headers = headers
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local http_persist = httpclient.create_persistent()
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for i = 1, MAX_SENSORS do
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if flukso[tostring(i)] ~= nil and flukso[tostring(i)].id then
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local sensor_id = flukso[tostring(i)].id
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if i ~= MAX_SENSORS then
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options.headers['Connection'] = 'keep-alive'
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else
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options.headers['Connection'] = 'close'
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end
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options.body = json_config(tostring(i))
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options.headers['Content-Length'] = tostring(#options.body)
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local hash = nixio.crypto.hmac('sha1', WAN_KEY)
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hash:update(options.body)
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options.headers['X-Digest'] = hash:final()
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local url = WAN_BASE_URL .. sensor_id
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local response, code, call_info = http_persist(url, options)
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local level
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if code == 200 then
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level = 'info'
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else
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level = 'err'
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end
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nixio.syslog(level, string.format('%s %s: %s', options.method, url, code))
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-- if available, send additional error info to the syslog
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if type(call_info) == 'string' then
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nixio.syslog('err', call_info)
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elseif type(call_info) == 'table' then
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local auth_error = call_info.headers['WWW-Authenticate']
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if auth_error then
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nixio.syslog('err', string.format('WWW-Authenticate: %s', auth_error))
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end
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end
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end
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end
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end
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-- open the connection to the syslog deamon, specifying our identity
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nixio.openlog('fsync', 'pid')
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-- sync config to sensor board
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local ctrl = ctrl_init()
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@ -401,9 +496,9 @@ create_symlinks()
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create_avahi_config()
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-- sync config to server
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-- sync config with the server
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if SYNC_TO_SERVER then
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-- TODO POST each sensor's parameters to the /sensor/xyz endpoint
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phone_home()
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end
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