Better file structure and naming
This commit is contained in:
Zaid Abdulla committed
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commit
236a0241ba
25 files changed
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-49
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+530
@@ -0,0 +1,530 @@
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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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https = require 'https'
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soap = require './soap'
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tasks = require './tasks'
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normalize = require('./normalize').normalize
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db = require './db'
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presets = require './presets'
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mongodb = require 'mongodb'
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fs = require 'fs'
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apiFunctions = require './api-functions'
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customCommands = require './custom-commands'
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crypto = require 'crypto'
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parameters = require './parameters'
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OBJECT_REGEX = /\.$/
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INSTANCE_REGEX = /\.[\d]+\.$/
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# Used to reject new TR-069 sessions when under load
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holdUntil = Date.now()
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writeResponse = (currentRequest, res) ->
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if res.headers['Content-Length'] == 0
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# no more requests. terminate TCP connection
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res.headers['Connection'] = 'close' if currentRequest.httpRequest.httpVersion == '1.1'
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else
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res.headers['Connection'] = 'Keep-Alive' if currentRequest.httpRequest.httpVersion == '1.0'
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if config.DEBUG_DEVICES[currentRequest.deviceId]
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dump = "# RESPONSE #{new Date(Date.now())}\n" + JSON.stringify(res.headers) + "\n#{res.data}\n\n"
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fs = require('fs').appendFile("debug/#{currentRequest.deviceId}.dump", dump, (err) ->
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throw err if err
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)
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currentRequest.httpResponse.writeHead(res.code, res.headers)
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currentRequest.httpResponse.end(res.data)
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updateDevice = (currentRequest, 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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deletes = {}
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if actions.parameterValues?
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for p in actions.parameterValues
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origValue = p[1]
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v = normalize(p[0], origValue)
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path = if common.endsWith(p[0], '.') then p[0] else "#{p[0]}."
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if v == origValue
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deletes["#{path}_orig"] = 1
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else
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updates["#{path}_orig"] = origValue
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updates["#{path}_value"] = v
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updates["#{path}_timestamp"] = now
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if p[2]?
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updates["#{path}_type"] = p[2]
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else
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deletes["#{path}_type"] = 1
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if actions.deletedObjects?
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for p in actions.deletedObjects
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deletes[p] = 1
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if actions.instanceName?
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for i in actions.instanceName
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updates["#{i[0]}._name"] = i[1]
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if actions.parameterNames?
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for p in actions.parameterNames
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if OBJECT_REGEX.test(p[0])
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path = p[0]
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if INSTANCE_REGEX.test(p[0])
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updates["#{path}_instance"] = true
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else
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updates["#{path}_object"] = true
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else
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path = "#{p[0]}."
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updates["#{path}_writable"] = p[1] if p[1]?
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updates["#{path}_timestamp"] = now
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# Add parameter (sans any dot suffix) if has an alias
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if (a = parameters.getAlias(pp = path.slice(0, -1)))?
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newAliases = {} if not newAliases?
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newAliases[pp] = a
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if actions.customCommands?
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for p in actions.customCommands
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commandName = p[0]
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updates["_customCommands.#{commandName}._value"] = p[1]
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updates["_customCommands.#{commandName}._timestamp"] = now
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if actions.set?
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common.extend(updates, actions.set)
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if Object.keys(updates).length > 0 or Object.keys(deletes).length > 0
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db.devicesCollection.update({'_id' : currentRequest.deviceId}, {'$set' : updates, '$unset' : deletes}, {}, (err, count) ->
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throw err if err
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# Clear aliases cache if there's a new aliased parameter that has not been included in aliases cache
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if newAliases?
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db.getAliases((aliases) ->
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for p, a of newAliases
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if not aliases[a]? or p not in aliases[a]
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db.redisClient.del('aliases', (err, res) ->
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throw err if err
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)
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break
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)
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callback?(err)
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)
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else
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callback?()
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inform = (currentRequest, cwmpRequest) ->
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# If overloaded, ask CPE to retry in 5 mins
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if Date.now() < holdUntil
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res = {code : 503, headers : {'Content-Length' : 0, 'Retry-After' : 300}, data : ''}
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return writeResponse(currentRequest, res)
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now = new Date(Date.now())
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util.log("#{currentRequest.deviceId}: Inform (#{cwmpRequest.methodRequest.event}); retry count #{cwmpRequest.methodRequest.retryCount}") if config.LOG_INFORMS
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parameterNames = (p[0] for p in cwmpRequest.methodRequest.parameterList)
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informHash = crypto.createHash('md5').update(JSON.stringify(parameterNames)).update(JSON.stringify(config.CUSTOM_COMMANDS)).digest('hex')
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actions = {parameterValues : cwmpRequest.methodRequest.parameterList, set : {}}
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actions.set._lastInform = now
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actions.set._lastBoot = now if '1 BOOT' in cwmpRequest.methodRequest.event
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actions.set._lastBootstrap = lastBootstrap = now if '0 BOOTSTRAP' in cwmpRequest.methodRequest.event
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db.redisClient.get("#{currentRequest.deviceId}_inform_hash", (err, res) ->
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throw err if err
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if not res?
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db.redisClient.setex("#{currentRequest.deviceId}_inform_hash", config.PRESETS_CACHE_DURATION, informHash, (err, res) ->
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throw err if err
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)
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updateAndRespond = () ->
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updateDevice(currentRequest, actions, (err) ->
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throw err if err
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res = soap.response(cwmpRequest.id, {methodResponse : {type : 'InformResponse'}}, {deviceId : currentRequest.deviceId})
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writeResponse(currentRequest, res)
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)
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if res == informHash
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return updateAndRespond()
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# populate projection and parameterStructure
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parameterStructure = {}
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projection = {}
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projection._customCommands = 1
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projection._timestamp = 1
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projection._lastBootstrap = 1
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for param in parameterNames
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ref = parameterStructure
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path = ''
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for p in param.split('.')
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ref[p] ?= {_path : path}
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ref = ref[p]
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path += p + '.'
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projection[path + '_timestamp'] = 1
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db.devicesCollection.findOne({'_id' : currentRequest.deviceId}, projection, (err, device) ->
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throw err if err
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lastBootstrap ?= device?._lastBootstrap
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_tasks = []
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# For any parameters that aren't in the DB model, issue a refresh task
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traverse = (reference, actual) ->
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for k of reference
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continue if k[0] == '_'
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if not actual[k]?._timestamp? or actual[k]._timestamp < lastBootstrap
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_tasks.push({device: currentRequest.deviceId, name : 'refreshObject', objectName : reference[k]._path})
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else
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traverse(reference[k], actual[k])
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if device?
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traverse(parameterStructure, device)
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# Update custom commands if needed
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deviceCustomCommands = {}
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deviceCustomCommands[k] = v._timestamp for k,v of device._customCommands
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for cmd in customCommands.getDeviceCustomCommandNames(currentRequest.deviceId)
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if not (deviceCustomCommands[cmd]?._timestamp < lastBootstrap)
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_tasks.push({device: currentRequest.deviceId, name: 'customCommand', command: "#{cmd} init"})
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delete deviceCustomCommands[cmd]
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for cmd of deviceCustomCommands
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actions.deletedObjects ?= []
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actions.deletedObjects.push("_customCommands.#{cmd}")
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apiFunctions.insertTasks(_tasks, {}, () ->
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updateAndRespond()
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)
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else
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deviceIdDetails = {}
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for k, v of cwmpRequest.methodRequest.deviceId
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deviceIdDetails["_#{k}"] = v
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db.devicesCollection.insert({_id : currentRequest.deviceId, _registered : now, _deviceId : deviceIdDetails}, (err) ->
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throw err if err
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util.log("#{currentRequest.deviceId}: New device registered")
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_tasks.push({device: currentRequest.deviceId, name : 'refreshObject', objectName : ''})
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for cmd in customCommands.getDeviceCustomCommandNames(currentRequest.deviceId)
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_tasks.push({device: currentRequest.deviceId, name: 'customCommand', command: "#{cmd} init"})
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apiFunctions.insertTasks(_tasks, {}, () ->
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updateAndRespond()
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)
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)
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)
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)
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runTask = (currentRequest, task, methodResponse) ->
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timeDiff = process.hrtime()
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tasks.task(task, methodResponse, (err, status, cwmpResponse, deviceUpdates) ->
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throw err if err
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# TODO handle error
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updateDevice(currentRequest, deviceUpdates, (err) ->
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throw err if err
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timeDiff = process.hrtime(timeDiff)[0] + 1
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if timeDiff > 3 # in seconds
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# Server under load. Hold new sessions temporarily.
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holdUntil = Math.max(Date.now() + timeDiff * 2000, holdUntil)
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save = status & tasks.STATUS_SAVE
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switch status & ~tasks.STATUS_SAVE
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when tasks.STATUS_OK
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f = () ->
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db.redisClient.setex(String(task._id), config.CACHE_DURATION, JSON.stringify(task), (err) ->
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throw err if err
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res = soap.response(task._id, cwmpResponse)
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writeResponse(currentRequest, res)
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)
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if save
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db.tasksCollection.update({_id : mongodb.ObjectID(String(task._id))}, {$set : {session : task.session}}, (err) ->
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throw err if err
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f()
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)
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else
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f()
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when tasks.STATUS_COMPLETED
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util.log("#{currentRequest.deviceId}: Completed task #{task.name}(#{task._id})")
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db.tasksCollection.remove({'_id' : mongodb.ObjectID(String(task._id))}, (err, removed) ->
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throw err if err
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db.redisClient.del(String(task._id), (err, res) ->
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throw err if err
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nextTask(currentRequest)
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)
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)
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when tasks.STATUS_FAULT
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retryAfter = config.RETRY_DELAY * Math.pow(2, task.retries ? 0)
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util.log("#{currentRequest.deviceId}: Fault response for task #{task._id}. Retrying after #{retryAfter} seconds.")
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taskUpdate = {fault : task.fault, timestamp : new Date(Date.now() + retryAfter * 1000)}
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if save
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taskUpdate.session = task.session
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db.tasksCollection.update({_id : mongodb.ObjectID(String(task._id))}, {$set : taskUpdate, $inc : {retries : 1}}, (err) ->
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throw err if err
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nextTask(currentRequest)
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)
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else
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throw new Error('Unknown task status')
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)
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)
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isTaskExpired = (task) ->
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task.expiry <= new Date()
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assertPresets = (currentRequest) ->
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db.redisClient.mget("#{currentRequest.deviceId}_presets_hash", 'presets_hash', (err, res) ->
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throw err if err
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devicePresetsHash = res[0]
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presetsHash = res[1]
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if devicePresetsHash? and devicePresetsHash == presetsHash
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# no discrepancy, return empty response
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res = soap.response(null, {})
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writeResponse(currentRequest, res)
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else
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db.getPresetsObjectsAliases((allPresets, allObjects, allAliases) ->
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if not presetsHash?
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presetsHash = presets.calculatePresetsHash(allPresets, allObjects)
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db.redisClient.setex('presets_hash', config.PRESETS_CACHE_DURATION, presetsHash, (err, res) ->
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throw err if err
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)
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presets.getDevicePreset(currentRequest.deviceId, allPresets, allObjects, allAliases, (devicePreset) ->
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presets.processDevicePreset(currentRequest.deviceId, devicePreset, (taskList, addTags, deleteTags, expiry) ->
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db.redisClient.setex("#{currentRequest.deviceId}_presets_hash", Math.floor(Math.max(1, expiry - config.PRESETS_TIME_PADDING)), presetsHash, (err, res) ->
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throw err if err
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)
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if addTags.length + deleteTags.length + taskList.length
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util.log("#{currentRequest.deviceId}: Presets discrepancy found")
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if addTags.length + deleteTags.length
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util.log("#{currentRequest.deviceId}: Updating tags +(#{addTags}) -(#{deleteTags})")
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if deleteTags.length
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db.devicesCollection.update({'_id' : currentRequest.deviceId}, {'$pull' : {'_tags' : {'$in' : deleteTags}}}, {}, (err, count) ->
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throw err if err
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)
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if addTags.length
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db.devicesCollection.update({'_id' : currentRequest.deviceId}, {'$addToSet' : {'_tags' : {'$each' : addTags}}}, {}, (err, count) ->
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throw err if err
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)
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if taskList.length
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t.expiry = expiry for t in taskList
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apiFunctions.insertTasks(taskList, allAliases, (err, taskList) ->
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throw err if err
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task = taskList[0]
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util.log("#{currentRequest.deviceId}: Started task #{task.name}(#{task._id})")
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runTask(currentRequest, task, {})
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)
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else
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res = soap.response(null, {}, {})
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writeResponse(currentRequest, res)
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)
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)
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)
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)
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nextTask = (currentRequest) ->
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now = new Date()
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cur = db.tasksCollection.find({'device' : currentRequest.deviceId, timestamp : {$lte : now}}).sort(['timestamp']).limit(1)
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cur.nextObject((err, task) ->
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throw err if err
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cwmpResponse = {}
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if not task
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# no more tasks, check presets discrepancy
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assertPresets(currentRequest)
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else if isTaskExpired(task)
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util.log("#{currentRequest.deviceId}: Task is expired #{task.name}(#{task._id})")
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db.tasksCollection.remove({'_id' : mongodb.ObjectID(String(task._id))}, {safe: true}, (err, removed) ->
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throw err if err
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nextTask(currentRequest)
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)
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else
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util.log("#{currentRequest.deviceId}: Started task #{task.name}(#{task._id})")
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runTask(currentRequest, task, {})
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)
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listener = (httpRequest, httpResponse) ->
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if httpRequest.method != 'POST'
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httpResponse.writeHead 405, {'Allow': 'POST'}
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httpResponse.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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httpRequest.addListener 'data', (chunk) ->
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chunks.push(chunk)
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bytes += chunk.length
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httpRequest.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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httpRequest.addListener 'end', () ->
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cwmpResponse = {}
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cwmpRequest = soap.request(httpRequest)
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currentRequest = {
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httpRequest : httpRequest
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httpResponse : httpResponse
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}
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if cwmpRequest.methodRequest?.deviceId?
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currentRequest.deviceId = common.getDeviceId(cwmpRequest.methodRequest.deviceId)
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else
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currentRequest.deviceId = cwmpRequest.cookies.deviceId
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if config.DEBUG_DEVICES[currentRequest.deviceId]
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dump = "# REQUEST #{new Date(Date.now())}\n" + JSON.stringify(httpRequest.headers) + "\n#{httpRequest.getBody()}\n\n"
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require('fs').appendFile("debug/#{currentRequest.deviceId}.dump", dump, (err) ->
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throw err if err
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)
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if cwmpRequest.methodRequest?
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if cwmpRequest.methodRequest.type is 'Inform'
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inform(currentRequest, cwmpRequest)
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else if cwmpRequest.methodRequest.type is 'TransferComplete'
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# do nothing
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util.log("#{currentRequest.deviceId}: Transfer complete")
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cwmpResponse.methodResponse = {type : 'TransferCompleteResponse'}
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res = soap.response(cwmpRequest.id, cwmpResponse, cookies)
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writeResponse(currentRequest, res)
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else if cwmpRequest.methodRequest.type is 'RequestDownload'
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requestDownloadResponse = () ->
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cwmpResponse.methodResponse = {type : 'RequestDownloadResponse'}
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res = soap.response(cwmpRequest.id, cwmpResponse, cookies)
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writeResponse(currentRequest, res)
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fileType = cwmpRequest.methodRequest.fileType
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util.log("#{currentRequest.deviceId}: RequestDownload (#{fileType})")
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if fileType isnt '1 Firmware Upgrade Image'
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# Only supporting firmware upgrade for now
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return requestDownloadResponse()
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db.getPresetsObjectsAliases((allPresets, allObjects, allAliases) ->
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presets.getDevicePreset(currentRequest.deviceId, allPresets, allObjects, allAliases, (devicePreset) ->
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presetSoftwareVersion = devicePreset.softwareVersion?.preset
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currentSoftwareVersion = devicePreset.softwareVersion?.current._value
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if presetSoftwareVersion? and presetSoftwareVersion != currentSoftwareVersion
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projection = {
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'_deviceId._Manufacturer' : 1,
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'_deviceId._ProductClass' : 1,
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}
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db.devicesCollection.findOne({'_id' : currentRequest.deviceId}, projection, (err, device) ->
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throw err if err
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manufacturer = device._deviceId._Manufacturer
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productClass = device._deviceId._ProductClass
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db.filesCollection.findOne({'metadata.fileType' : '1 Firmware Upgrade Image', 'metadata.manufacturer' : manufacturer, 'metadata.productClass' : productClass, 'metadata.version' : presetSoftwareVersion}, {_id : 1}, (err, file) ->
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throw err if err
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if not file?
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util.error("#{currentRequest.deviceId}: Firmware image not found (#{presetSoftwareVersion})")
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return requestDownloadResponse()
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||||
|
||||
task = {
|
||||
device : currentRequest.deviceId,
|
||||
name : 'download',
|
||||
file : file['_id']
|
||||
}
|
||||
apiFunctions.insertTasks(task, allAliases, (err, tasks) ->
|
||||
throw err if err
|
||||
return requestDownloadResponse()
|
||||
)
|
||||
)
|
||||
)
|
||||
else
|
||||
return requestDownloadResponse()
|
||||
)
|
||||
)
|
||||
else
|
||||
throw new Error('ACS method not supported')
|
||||
else if cwmpRequest.methodResponse?
|
||||
taskId = cwmpRequest.id
|
||||
|
||||
db.getTask(taskId, (err, task) ->
|
||||
throw err if err
|
||||
if not task
|
||||
nextTask(currentRequest)
|
||||
else
|
||||
runTask(currentRequest, task, cwmpRequest.methodResponse)
|
||||
)
|
||||
else if cwmpRequest.fault?
|
||||
taskId = cwmpRequest.id
|
||||
if not taskId
|
||||
# Fault not related to a task. return empty response.
|
||||
res = soap.response(null, {}, {})
|
||||
writeResponse(currentRequest, res)
|
||||
return
|
||||
|
||||
db.getTask(taskId, (err, task) ->
|
||||
throw err if err
|
||||
if not task
|
||||
nextTask(currentRequest)
|
||||
else
|
||||
runTask(currentRequest, task, cwmpRequest.fault)
|
||||
)
|
||||
else
|
||||
# cpe sent empty response. start sending acs requests
|
||||
nextTask(currentRequest)
|
||||
|
||||
|
||||
cluster = require 'cluster'
|
||||
numCPUs = require('os').cpus().length
|
||||
|
||||
if cluster.isMaster
|
||||
db.redisClient.flushdb()
|
||||
cluster.on('listening', (worker, address) ->
|
||||
util.log("Worker #{worker.process.pid} listening to #{address.address}:#{address.port}")
|
||||
)
|
||||
|
||||
cluster.on('exit', (worker, code, signal) ->
|
||||
util.log("Worker #{worker.process.pid} died (#{worker.process.exitCode})")
|
||||
setTimeout(()->
|
||||
cluster.fork()
|
||||
, config.WORKER_RESPAWN_TIME)
|
||||
)
|
||||
|
||||
for [1 .. numCPUs]
|
||||
cluster.fork()
|
||||
else
|
||||
options = {
|
||||
key: fs.readFileSync('../config/httpscert.key'),
|
||||
cert: fs.readFileSync('../config/httpscert.crt')
|
||||
}
|
||||
|
||||
httpServer = http.createServer(listener)
|
||||
httpsServer = https.createServer(options, listener)
|
||||
|
||||
# wait until DB connections are established
|
||||
setTimeout(() ->
|
||||
httpServer.listen(config.ACS_PORT, config.ACS_INTERFACE)
|
||||
httpsServer.listen(config.ACS_HTTPS_PORT, config.ACS_HTTPS_INTERFACE)
|
||||
, 1000)
|
||||
Reference in new issue
Block a user