270 lines
8.9 KiB
CoffeeScript
270 lines
8.9 KiB
CoffeeScript
config = require './config'
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common = require './common'
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util = require 'util'
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http = require 'http'
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tr069 = require './tr-069'
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tasks = require './tasks'
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sanitize = require('./sanitize').sanitize
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db = require './db'
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presets = require './presets'
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currentRequest = null
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applyConfigurations = (taskList) ->
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if taskList.length
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util.log("#{currentRequest.deviceId}: Presets discrepancy found")
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db.tasksCollection.save(taskList, (err) ->
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for task in taskList
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util.log("#{currentRequest.deviceId}: Added #{task.name} task #{task._id}")
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task = taskList[0]
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util.log("#{currentRequest.deviceId}: started task #{task.name}(#{task._id})")
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runTask(task, {})
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)
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else
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res = tr069.response(currentRequest.sessionId, {}, {})
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writeResponse res
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writeResponse = (res) ->
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if config.DEBUG
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s = "# RESPONSE #{new Date(Date.now())}\n" + JSON.stringify(res.headers) + "\n#{res.data}\n\n"
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db.memcached.append("debug-#{currentRequest.clientIp}", s, (err, result) ->
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)
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currentRequest.response.writeHead(res.code, res.headers)
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currentRequest.response.end(res.data)
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updateDevice = (deviceId, actions, callback) ->
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if not actions?
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callback() if callback?
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return
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now = new Date(Date.now())
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updates = {}
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if actions.inform
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updates['_last_inform'] = now
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if actions.parameterValues?
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for p in actions.parameterValues
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v = sanitize(p[0], p[1])
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path = if common.endsWith(p[0], '.') then p[0] else "#{p[0]}."
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if v is undefined
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updates["#{path}_value"] = p[1]
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else
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updates["#{path}_value"] = v
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updates["#{path}_orig"] = p[1]
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updates["#{path}_timestamp"] = now
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if actions.parameterNames?
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for p in actions.parameterNames
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path = if common.endsWith(p[0], '.') then p[0] else "#{p[0]}."
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if common.endsWith(p[0], '.')
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updates["#{path}_object"] = true
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updates["#{path}_writable"] = p[1]
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updates["#{path}_timestamp"] = now
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if Object.keys(updates).length > 0
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db.devicesCollection.update({'_id' : currentRequest.deviceId}, {'$set' : updates}, {safe: true}, (err, count) ->
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if (err)
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callback(err) if callback?
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return
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if count == 0
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util.log("#{currentRequest.deviceId}: New device detected")
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db.devicesCollection.update({'_id' : currentRequest.deviceId}, {'$set' : updates}, {upsert: true, safe: true}, (err) ->
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if err?
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callback(err) if callback?
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return
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task = {device : currentRequest.deviceId, name : 'init', timestamp : db.mongo.Timestamp()}
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db.tasksCollection.save(task, (err) ->
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util.log("#{currentRequest.deviceId}: Added init task #{task._id}")
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callback(err) if callback?
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)
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)
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else
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callback() if callback?
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)
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else
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callback() if callback?
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runTask = (task, reqParams) ->
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resParams = {}
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actions = tasks.task(task, reqParams, resParams)
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updateDevice(currentRequest.deviceId, actions)
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if Object.keys(resParams).length > 0
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db.updateTask(task, (err) ->
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res = tr069.response(currentRequest.sessionId, resParams, {task : String(task._id)})
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writeResponse res
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)
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return
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# Task finished
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db.memcached.del(String(task._id))
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db.tasksCollection.remove({'_id' : db.mongo.ObjectID(String(task._id))}, {safe: true}, (err, removed) ->
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util.log("#{currentRequest.deviceId}: Completed task #{task.name}(#{task._id})")
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cookies = {task : null}
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nextTask(cookies)
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)
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nextTask = (cookies) ->
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cur = db.tasksCollection.find({'device' : currentRequest.deviceId}).sort(['timestamp']).limit(1)
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cur.nextObject( (err, task) ->
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reqParams = {}
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resParams = {}
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if not task
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# no more tasks, check presets discrepancy
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db.memcached.get(["#{currentRequest.deviceId}_presets_hash", 'presets_hash'], (err, results) ->
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presetsHash = results['presets_hash']
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devicePresetsHash = results["#{currentRequest.deviceId}_presets_hash"]
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if not devicePresetsHash or presetsHash != devicePresetsHash
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presets.assertPresets(currentRequest.deviceId, presetsHash, (taskList) ->
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applyConfigurations(taskList)
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)
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else if not presetsHash
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presets.getPresetsHash((hash) ->
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if hash != devicePresetsHash
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presets.assertPresets(currentRequest.deviceId, presetsHash, (taskList) ->
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applyConfigurations(taskList)
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)
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else
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# no discrepancy, return empty response
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res = tr069.response(currentRequest.sessionId, resParams, cookies)
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writeResponse res
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)
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else
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# no discrepancy, return empty response
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res = tr069.response(currentRequest.sessionId, resParams, cookies)
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writeResponse res
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)
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return
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else if task.fault?
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# last task was faulty. Do nothing until until task is deleted
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res = tr069.response(currentRequest.sessionId, resParams, cookies)
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writeResponse res
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else
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util.log("#{currentRequest.deviceId}: Started task #{task.name}(#{task._id})")
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runTask(task, reqParams)
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)
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cluster = require 'cluster'
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numCPUs = require('os').cpus().length
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if cluster.isMaster
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cluster.on('listening', (worker, address) ->
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util.log("Worker #{worker.process.pid} listening to #{address.address}:#{address.port}")
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)
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cluster.on('exit', (worker, code, signal) ->
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util.log("Worker #{worker.process.pid} died (#{worker.process.exitCode})")
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setTimeout(()->
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cluster.fork()
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, config.WORKER_RESPAWN_TIME)
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)
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for i in [1 .. numCPUs]
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cluster.fork()
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else
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if config.DEBUG
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process.on('uncaughtException', (error) ->
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util.error(error.stack)
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# dump request/response logs and stack trace
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db.memcached.get("debug-#{currentRequest.clientIp}", (err, l) ->
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util.log("#{currentRequest.deviceId}: Unexpected error occured. Writing log to debug/#{currentRequest.clientIp}.log.")
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util.error(err) if err
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fs = require 'fs'
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fs.writeFileSync("debug/#{currentRequest.clientIp}.log", l + "\n\n" + error.stack)
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process.exit(1)
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)
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)
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server = http.createServer (request, response) ->
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if request.method != 'POST'
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#console.log '>>> 405 Method Not Allowed'
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response.writeHead 405, {'Allow': 'POST'}
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response.end('405 Method Not Allowed')
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return
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chunks = []
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bytes = 0
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cookies = {}
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request.addListener 'data', (chunk) ->
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chunks.push(chunk)
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bytes += chunk.length
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request.getBody = (encoding) ->
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# Write all chunks into a Buffer
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body = new Buffer(bytes)
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offset = 0
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chunks.forEach((chunk) ->
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chunk.copy(body, offset, 0, chunk.length)
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offset += chunk.length
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)
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#Return encoded (default to UTF8) string
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return body.toString(encoding || 'utf8', 0, body.byteLength)
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request.addListener 'end', () ->
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currentRequest = {}
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currentRequest.request = request
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currentRequest.response = response
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currentRequest.clientIp = request.connection.remoteAddress
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if config.DEBUG
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s = "# REQUEST #{new Date(Date.now())}\n" + JSON.stringify(request.headers) + "\n#{request.getBody()}\n\n"
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db.memcached.append("debug-#{currentRequest.clientIp}", s, (err, result) ->
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if err == 'Item is not stored'
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db.memcached.set("debug-#{currentRequest.clientIp}", s, config.CACHE_DURATION, (err, result) ->
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)
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)
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resParams = {}
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reqParams = tr069.request(request)
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if reqParams.inform
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resParams.inform = true
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cookies.ID = currentRequest.sessionId = reqParams.sessionId
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cookies.DeviceId = currentRequest.deviceId = common.getDeviceId(reqParams.deviceId)
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if config.DEBUG
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util.log("#{currentRequest.deviceId}: Inform (#{reqParams.eventCodes}); retry count #{reqParams.retryCount}")
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updateDevice(currentRequest.deviceId, {'inform' : true, 'parameterValues' : reqParams.informParameterValues}, (err) ->
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res = tr069.response(currentRequest.sessionId, resParams, cookies)
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writeResponse res
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)
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return
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currentRequest.sessionId = reqParams.cookies.ID
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currentRequest.deviceId = reqParams.cookies.DeviceId
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taskId = reqParams.cookies.task
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if not taskId
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nextTask(cookies)
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else
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db.getTask(taskId, (task) ->
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if not task
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nextTask(cookies)
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else if reqParams.fault?
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util.log("#{currentRequest.deviceId}: Fault response for task #{task._id}")
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task.fault = reqParams.fault
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db.saveTask(task, (err) ->
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# Faulty task. No more work to do until task is deleted.
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res = tr069.response(currentRequest.sessionId, resParams, cookies)
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writeResponse res
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)
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else
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runTask(task, reqParams)
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)
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server.listen config.ACS_PORT, config.ACS_INTERFACE
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#console.log "Server listening on port #{config.ACS_PORT}"
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