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genieacs/lib/session.coffee
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###
# Copyright 2013-2016 Zaid Abdulla
#
# GenieACS is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# GenieACS 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with GenieACS. If not, see <http://www.gnu.org/licenses/>.
###
config = require './config'
common = require './common'
db = require './db'
device = require './device'
sandbox = require './sandbox'
cache = require './cache'
extensions = require './extensions'
PathSet = require './path-set'
VersionedMap = require './versioned-map.js'
InstanceSet = require './instance-set'
initDeviceData = () ->
return {
paths : new PathSet()
timestamps : {exist: new VersionedMap(), object: new VersionedMap(), writable: new VersionedMap(), value: new VersionedMap()}
values : {exist: new VersionedMap(), object: new VersionedMap(), writable: new VersionedMap(), value: new VersionedMap()}
loaded : new Map()
}
init = (deviceId, cwmpVersion, timeout, callback) ->
timestamp = Date.now()
sessionData = {
timestamp : timestamp
deviceId : deviceId
deviceData : initDeviceData()
cwmpVersion : cwmpVersion
timeout : timeout
provisions: []
channels: []
revisions: [0]
rpcCount: 0
cycle: 0
extensionsCache: []
declarations: []
}
cache.getProvisionsAndVirtualParameters((err, hash, provisions, virtualParameters) ->
return callback(err) if err
sessionData.cache = {
hash: hash
provisions: provisions
virtualParameters: virtualParameters
}
return callback(null, sessionData)
)
loadParameters = (sessionData, callback) ->
if not sessionData.toLoad?.length
return callback()
db.fetchDevice(sessionData.deviceId, sessionData.timestamp, sessionData.toLoad, (err, parameters, loaded) ->
return callback(err) if err
if not parameters?
# Device not available in database, mark as new
sessionData.new = true
path = sessionData.deviceData.paths.add(['*'])
sessionData.deviceData.loaded.set(path, 99)
return callback()
for p in loaded
path = sessionData.deviceData.paths.add(p[0])
if p[1]
l = sessionData.deviceData.loaded.get(path) || 0
sessionData.deviceData.loaded.set(path, Math.max(l, p[1]))
for p in parameters
path = sessionData.deviceData.paths.add(p[0])
for k, v of p[1]
sessionData.deviceData.timestamps[k].set(path, v, 0)
for k, v of p[2]
sessionData.deviceData.values[k].set(path, v, 0)
# Virtual parameters
for p in sessionData.toLoad
p = sessionData.deviceData.paths.add(p)
if p[0] == '*' or p[0] == 'VirtualParameters'
if p.length == 1
sessionData.deviceData.timestamps.exist.set(p, sessionData.timestamp, 0)
sessionData.deviceData.timestamps.object.set(p, sessionData.timestamp, 0)
sessionData.deviceData.timestamps.writable.set(p, sessionData.timestamp, 0)
sessionData.deviceData.values.exist.set(p, 1, 0)
sessionData.deviceData.values.object.set(p, 1, 0)
sessionData.deviceData.values.writable.set(p, 0, 0)
else if p.length == 2
if not p[1]?
sessionData.deviceData.timestamps.exist.set(p, sessionData.timestamp, 0)
for k, v of sessionData.cache.virtualParameters
p = sessionData.deviceData.paths.add(p)
sessionData.deviceData.timestamps.exist.set(p, sessionData.timestamp, 0)
sessionData.deviceData.timestamps.object.set(p, sessionData.timestamp, 0)
sessionData.deviceData.values.exist.set(p, 1, 0)
sessionData.deviceData.values.object.set(p, 0, 0)
else if sessionData.cache.virtualParameters[p[1]]?
sessionData.deviceData.timestamps.exist.set(p, sessionData.timestamp, 0)
sessionData.deviceData.timestamps.object.set(p, sessionData.timestamp, 0)
sessionData.deviceData.values.exist.set(p, 1, 0)
sessionData.deviceData.values.object.set(p, 0, 0)
sessionData.toLoad = null
return callback()
)
generateRpcId = (sessionData) ->
if sessionData.rpcCount > 255 or sessionData.cycle > 15 or sessionData.revisions.length > 15
throw new Error('Too many RPCs')
return sessionData.timestamp.toString(16) + "0#{sessionData.rpcCount.toString(16)}".slice(-2)
inform = (sessionData, rpcReq, callback) ->
timestamp = sessionData.timestamp
params = []
params.push([['DeviceID', 'Manufacturer'],
{exist: timestamp, object: timestamp, writable: timestamp, value: timestamp},
{exist: 1, object: 0, writable: 0, value: [rpcReq.deviceId.Manufacturer, 'xsd:string']}])
params.push([['DeviceID', 'OUI'],
{exist: timestamp, object: timestamp, writable: timestamp, value: timestamp},
{exist: 1, object: 0, writable: 0, value: [rpcReq.deviceId.OUI, 'xsd:string']}])
params.push([['DeviceID', 'ProductClass'],
{exist: timestamp, object: timestamp, writable: timestamp, value: timestamp},
{exist: 1, object: 0, writable: 0, value: [rpcReq.deviceId.ProductClass, 'xsd:string']}])
params.push([['DeviceID', 'SerialNumber'],
{exist: timestamp, object: timestamp, writable: timestamp, value: timestamp},
{exist: 1, object: 0, writable: 0, value: [rpcReq.deviceId.SerialNumber, 'xsd:string']}])
for p in rpcReq.parameterList
path = common.parsePath(p[0])
params.push([path,
{exist: timestamp, object: timestamp, value: timestamp},
{exist: 1, object: 0, value: p.slice(1)}])
params.push([['Events', 'Inform'],
{exist: timestamp, object: timestamp, writable: timestamp, value: timestamp},
{exist: 1, object: 0, writable: 0, value: [timestamp, 'xsd:dateTime']}])
for e in rpcReq.event
params.push([['Events', e.replace(' ', '_')],
{exist: timestamp, object: timestamp, writable: timestamp, value: timestamp},
{exist: 1, object: 0, writable: 0, value: [timestamp, 'xsd:dateTime']}])
for p in params
loadPath(sessionData, p[0])
loadParameters(sessionData, (err) ->
return callback(err) if err
v.revision = 1 for k, v of sessionData.deviceData.timestamps
v.revision = 1 for k, v of sessionData.deviceData.values
for p in params
device.set(sessionData.deviceData, p[0], p[1], p[2])
return callback(null, {type : 'InformResponse'})
)
addProvisions = (sessionData, channel, provisions) ->
for provision, i in provisions
# Remove duplicate provisions
for p, j in sessionData.provisions
if channel == sessionData.channels[j] and JSON.stringify(p) == JSON.stringify(provision)
sessionData.provisions.splice(j, 1)
sessionData.channels.splice(j, 1)
sessionData.provisions.push(provision)
sessionData.channels.push(channel)
if sessionData.revisions.length > 1 or sessionData.revisions[0] > 0
v.collapse(1) for k, v of sessionData.timestamps
v.collapse(1) for k, v of sessionData.values
sessionData.cycle += 1
sessionData.rpcCount = 0
sessionData.revisions = [0]
sessionData.extensionsCache.length = 0
clearProvisions = (sessionData) ->
delete sessionData.syncState
sessionData.provisions = []
sessionData.channels = []
sessionData.declarations = []
if sessionData.revisions.length > 1 or sessionData.revisions[0] > 0
v.collapse(1) for k, v of sessionData.deviceData.timestamps
v.collapse(1) for k, v of sessionData.deviceData.values
sessionData.cycle += 1
sessionData.rpcCount = 0
sessionData.revisions = [0]
sessionData.extensionsCache.length = 0
runProvisions = (sessionData, callback) ->
done = true
_extensions = []
allDeclarations = []
for provision in sessionData.provisions
if not sessionData.cache.provisions[provision[0]]?
switch provision[0]
when 'refresh'
path = common.parsePath(provision[1]).slice()
l = path.length
path.length = 10
path.fill('*', l)
t = provision[2]
t += sessionData.timestamp if t <= 0
for i in [l...path.length] by 1
p = common.addPathMeta(path.slice(0, i))
allDeclarations.push([p, {exist: t, object: 1, writable: 1, value: t}])
when 'value'
allDeclarations.push([common.parsePath(provision[1]), {exist: 1, value: 1}, {value: [provision[2]]}])
when 'tag'
allDeclarations.push([['Tags', provision[1]], {exist: 1, value: 1}, {exist: 1, value: [provision[2], 'xsd:boolean']}])
when '_task'
# A special provision for tasks compatibility
switch provision[2]
when 'getParameterValues'
for i in [3...provision.length] by 1
allDeclarations.push([common.parsePath(provision[i]), {exist: 1, value: sessionData.timestamp}])
when 'setParameterValues'
for i in [3...provision.length] by 3
v = if provision[i + 2] then [provision[i + 1], provision[i + 2]] else [provision[i + 1]]
allDeclarations.push([common.parsePath(provision[i]), {exist: 1, value: 1}, {value: v}])
when 'refreshObject'
path = common.parsePath(provision[3]).slice()
l = path.length
path.length = 10
path.fill('*', l)
for i in [l...path.length] by 1
p = common.addPathMeta(path.slice(0, i))
allDeclarations.push([p, {exist: sessionData.timestamp, object: 1, writable: 1, value: sessionData.timestamp}])
continue
ret = sandbox.run(sessionData.cache.provisions[provision[0]].script, provision.slice(1), sessionData.timestamp, sessionData.deviceData, sessionData.extensionsCache, 0, sessionData.revisions[0] >> 1)
if ret.extensions?.length
_extensions = _extensions.concat(ret.extensions)
done &&= ret.done
allDeclarations = allDeclarations.concat(ret.declarations)
if _extensions.length
return runExtensions(sessionData, (sessionData.revisions[0] >> 1), _extensions, (err) ->
return callback(err) if err
return runProvisions(sessionData, callback)
)
for d in allDeclarations
state = applyDeclaration(sessionData, d[0], 0, d[1], d[2])
sessionData.declarations.push([d[0], state, d[1], d[2]])
return callback(null, done)
runVirtualParameters = (sessionData, inception, callback) ->
if not sessionData.syncState? or Object.keys(sessionData.syncState.virtualParameters).length == 0
return callback()
virtualParameterDeclarations = sessionData.syncState.virtualParameters
sessionData.syncState.virtualParameters = {}
revision = sessionData.revisions.reduce(((a, b) -> a + (b >> 1)), 0) + 1
sessionData.revisions[inception] ?= 0
decs = []
virtualParameterUpdates = {}
_extensions = []
firstRevision = revision - (sessionData.revisions[sessionData.revisions.length - 1] >> 1)
for vpName, vpDeclarations of virtualParameterDeclarations
ret = sandbox.run(sessionData.cache.virtualParameters[vpName].script, [vpDeclarations.timestamps, vpDeclarations.values], sessionData.timestamp, sessionData.deviceData, sessionData.extensionsCache, firstRevision, revision)
if ret.extensions?.length
_extensions = _extensions.concat(ret.extensions)
decs = decs.concat(ret.declarations)
if ret.done
virtualParameterUpdates[vpName] = ret.returnValue
if _extensions.length
return runExtensions(sessionData, revision, _extensions, (err) ->
return callback(err) if err
return runVirtualParameters(sessionData, inception, callback)
)
for d in decs
state = applyDeclaration(sessionData, d[0], 0, d[1], d[2])
sessionData.declarations.push([d[0], state, d[1], d[2]])
if Object.keys(virtualParameterUpdates).length == Object.keys(virtualParameterDeclarations).length
rev = sessionData.revisions.reduce(((a, b) -> a + (b >> 1)), 0) + 1
v.revision = rev for k, v of sessionData.deviceData.timestamps
v.revision = rev for k, v of sessionData.deviceData.values
for vpName, vpDeclarations of virtualParameterDeclarations
commitVirtualParameter(sessionData, vpName, vpDeclarations, virtualParameterUpdates[vpName])
if sessionData.revisions[inception] > 0
sessionData.revisions.length = inception
rev = sessionData.revisions.reduce(((a, b) -> a + (b >> 1)), 0) + 1
m.collapse(rev) for k, m of sessionData.deviceData.timestamps
m.collapse(rev) for k, m of sessionData.deviceData.values
if sessionData.extensionsCache.length > rev
sessionData.extensionsCache.length = rev
return runVirtualParameters(sessionData, inception + 1, callback)
rpcRequest = (sessionData, declarations, callback) ->
if sessionData.rpcRequest?
return callback(null, generateRpcId(sessionData), sessionData.rpcRequest)
if sessionData.syncState? and (rpcReq = generateRpcRequest(sessionData))?
sessionData.rpcRequest = rpcReq
return callback(null, generateRpcId(sessionData), rpcReq)
revision = sessionData.revisions.reduce(((a, b) -> a + (b >> 1)), 0) + 1
v.revision = revision for k, v of sessionData.deviceData.timestamps
v.revision = revision for k, v of sessionData.deviceData.values
f = (cb) ->
return cb() if not sessionData.declarations.length
for d, i in sessionData.declarations
state = applyDeclaration(sessionData, d[0], d[1], d[2], d[3])
d[1] = state
if sessionData.toLoad?.length
return loadParameters(sessionData, (err) ->
return cb(err) if err
return f(cb)
)
runVirtualParameters(sessionData, 1, (err) ->
return cb(err) if err
if sessionData.toLoad?.length
return loadParameters(sessionData, (err) ->
return cb(err) if err
return f(cb)
)
return cb(null, generateRpcRequest(sessionData))
)
if declarations?
for d in declarations
sessionData.declarations.push([d[0], 0, d[1], d[2]])
if sessionData.declarations.length
return f((err, rpcReq) ->
return callback(err) if err
if rpcReq?
sessionData.declarations = [] if rpcReq.done
sessionData.rpcRequest = rpcReq
return callback(null, generateRpcId(sessionData), rpcReq)
sessionData.declarations = []
++ sessionData.revisions[sessionData.revisions.length - 1]
return rpcRequest(sessionData, null, callback)
)
if not sessionData.provisions.length
return callback()
runProvisions(sessionData, (err, done) ->
return callback(err) if err
return f((err, rpcReq) ->
return callback(err) if err
if rpcReq?
sessionData.declarations = [] if rpcReq.done
sessionData.rpcRequest = rpcReq
return callback(null, generateRpcId(sessionData), rpcReq)
sessionData.declarations = []
if done
return callback()
++ sessionData.revisions[sessionData.revisions.length - 1]
return rpcRequest(sessionData, null, callback)
)
)
generateRpcRequest = (sessionData) ->
syncState = sessionData.syncState
iter = syncState.refreshAttributes.exist.values()
while (path = iter.next().value)
descendantIter = syncState.paths.subset(path, 99)
found = false
while (p = descendantIter.next().value)?
if syncState.refreshAttributes.value.has(p) or
syncState.refreshAttributes.object.has(p) or
syncState.refreshAttributes.writable.has(p) or
syncState.refreshGpn.has(p)
found = true
break
if not found
path = syncState.paths.add(path.slice(0, -1))
syncState.refreshGpn.set(path, syncState.refreshGpn.get(path) or 1)
syncState.refreshAttributes.exist.clear()
iter = syncState.refreshAttributes.object.values()
while (path = iter.next().value)
descendantIter = syncState.paths.subset(path, 99)
found = false
while (p = descendantIter.next().value)?
if syncState.refreshAttributes.value.has(p) or
(p.length > path.length and
(syncState.refreshAttributes.object.has(p) or
syncState.refreshAttributes.writable.has(p)))
found = true
break
if not found
path = syncState.paths.add(path.slice(0, -1))
syncState.refreshGpn.set(path, syncState.refreshGpn.get(path) or 1)
syncState.refreshAttributes.object.clear()
iter = syncState.refreshAttributes.writable.values()
while (path = iter.next().value)
path = syncState.paths.add(path.slice(0, -1))
syncState.refreshGpn.set(path, syncState.refreshGpn.get(path) or 1)
syncState.refreshAttributes.writable.clear()
iter = syncState.refreshGpn.keys()
while (path = iter.next().value)
descendantIter = syncState.paths.subset(path, 99)
found = false
while (p = descendantIter.next().value)?
continue if p == path
if (flags = syncState.refreshGpn.get(p))
flags <<= p.length - path.length
syncState.refreshGpn.set(path, syncState.refreshGpn.get(path) | flags)
syncState.refreshGpn.delete(p)
rpcReq = null
completed = true
# Delete instance
syncState.instancesToDelete.forEach((instances, parent) ->
instances.forEach((instance, index, thisArray) ->
if rpcReq?
completed = false
else
rpcReq = {
type: 'DeleteObject'
objectName: instance.join('.') + '.'
}
thisArray.splice(index, 1)
)
)
# Create instance
syncState.instancesToCreate.forEach((instances, parent) ->
instances.forEach((instance, index, thisArray) ->
if rpcReq?
completed = false
else
rpcReq = {
type: 'AddObject'
objectName: parent.join('.') + '.'
next: 'getInstanceKeys'
instanceValues: instance
}
thisArray.splice(index, 1)
)
)
if syncState.refreshGpn.size
if rpcReq?
completed = false
else
GET_PARAMETER_NAMES_DEPTH_THRESHOLD =
config.get('GET_PARAMETER_NAMES_DEPTH_THRESHOLD', sessionData.deviceId)
pair = syncState.refreshGpn.entries().next().value
nextLevel = true
if pair[0].length >= GET_PARAMETER_NAMES_DEPTH_THRESHOLD
nextLevel = false
else if common.hammingWeight(pair[1] >> 3) >= 3
nextLevel = false
if syncState.refreshGpn.size > 1 or (pair[1] > 1 and nextLevel)
completed = false
rpcReq = {
type: 'GetParameterNames'
parameterPath: pair[0].concat('').join('.')
nextLevel: nextLevel
}
syncState.refreshGpn.delete(pair[0])
if syncState.refreshAttributes.value.size
if rpcReq?
completed = false
else
TASK_PARAMETERS_BATCH_SIZE =
config.get('TASK_PARAMETERS_BATCH_SIZE', sessionData.deviceId)
parameterNames = []
iter = syncState.refreshAttributes.value.values()
while (path = iter.next().value) and
parameterNames.length < TASK_PARAMETERS_BATCH_SIZE
parameterNames.push(path)
syncState.refreshAttributes.value.delete(path)
if syncState.refreshAttributes.value.size > parameterNames.length
completed = false
rpcReq = {
type: 'GetParameterValues'
parameterNames: (p.join('.') for p in parameterNames)
}
TASK_PARAMETERS_BATCH_SIZE =
config.get('TASK_PARAMETERS_BATCH_SIZE', sessionData.deviceId)
parameterValues = []
syncState.setValues.forEach((v, k) ->
return if completed == false
if rpcReq?
completed = false
return
val = v[1].slice()
if not val[1]?
val[1] = v[0][1]
device.sanitizeParameterValue(val)
if val[0] != v[0][0] or val[1] != v[0][1]
if parameterValues.length >= TASK_PARAMETERS_BATCH_SIZE
completed = false
return
parameterValues.push([k, val[0], val[1]])
syncState.setValues.delete(k)
)
if parameterValues.length and not rpcReq?
rpcReq = {
type: 'SetParameterValues'
parameterList: ([p[0].join('.'), p[1], p[2]] for p in parameterValues)
}
if completed and rpcReq?
rpcReq.done = true
return rpcReq
processVirtualparameterDeclaration = (sessionData, path, timestamps, values) ->
ret = true
return ret if path.length != 2
deviceData = sessionData.deviceData
subIter = sessionData.deviceData.paths.subset(path)
while sub = subIter.next().value
continue if not deviceData.values.exist.get(sub)
isWritable = deviceData.values.writable.get(sub)
for k, v of timestamps
if not (v <= deviceData.timestamps[k].get(sub))
sessionData.syncState.virtualParameters[sub[1]] ?= {timestamps: {}, values: {}}
sessionData.syncState.virtualParameters[sub[1]].timestamps[k] =
Math.max(v, sessionData.syncState.virtualParameters[sub[1]].timestamps[k] ? 0)
ret = false
if values?.value?
if isWritable == 1
sessionData.syncState.virtualParameters[sub[1]] ?= {timestamps: {}, values: {}}
cur = sessionData.syncState.virtualParameters[sub[1]].values.value
if not cur?
cur = [deviceData.values.value.get(sub), values.value]
sessionData.syncState.virtualParameters[sub[1]].values.value = cur
else
cur[1] = values.value
else if not isWritable?
sessionData.syncState.virtualParameters[sub[1]] ?= {timestamps: {}, values: {}}
sessionData.syncState.virtualParameters[sub[1]].timestamps.writable =
Math.max(1, sessionData.syncState.virtualParameters[sub[1]].timestamps.writable ? 0)
ret = false
return ret
processDeclaration = (sessionData, path, _timestamps, values) ->
syncState = sessionData.syncState
deviceData = sessionData.deviceData
timestamps = {}
timestamps[k] = v for k, v of _timestamps
ret = true
if path[0] == '*' or path[0] == 'VirtualParameters'
ret &&= processVirtualparameterDeclaration(sessionData, path, _timestamps, values)
return ret if path[0] != '*'
iter = sessionData.deviceData.paths.superset(path)
param = null
existTimestamp = 0
while sup = iter.next().value
param = sup if not sup.wildcard
for k, v of timestamps
continue if not (t = deviceData.timestamps[k].get(sup))?
existTimestamp = Math.max(existTimestamp, t) if k is 'exist'
delete timestamps[k] if t >= v
if not Object.keys(timestamps).length and
not (values? and Object.keys(values).length)
return ret
if param?
if deviceData.values.exist.get(param)
param = syncState.paths.add(param)
isObject = deviceData.values.object.get(param)
isWritable = deviceData.values.writable.get(param)
for k of timestamps
if k isnt 'value' or isObject == 0
syncState.refreshAttributes[k].add(param)
ret = false
else if not isObject?
syncState.refreshAttributes.object.add(param)
ret = false
if values?.value?
if isObject == 0 and isWritable == 1
cur = syncState.setValues.get(param)
if not cur?
cur = [deviceData.values.value.get(param), values.value]
syncState.setValues.set(param, cur)
else
cur[1] = values.value
else
if not isObject?
syncState.refreshAttributes.object.add(param)
ret = false
if not isWritable?
syncState.refreshAttributes.writable.add(param)
ret = false
return ret
else if existTimestamp >= (timestamps.exist or 1)
return ret
else if path.indexOf('*') >= 0
subIter = deviceData.paths.subset(path)
while sub = subIter.next().value
continue if not deviceData.values.exist.get(sub)
isObject = deviceData.values.object.get(sub)
isWritable = deviceData.values.writable.get(sub)
for k, v of timestamps
if not (v <= deviceData.timestamps[k].get(sub))
if k isnt 'value' or isObject == 0
sub = syncState.paths.add(sub)
syncState.refreshAttributes[k].add(sub)
ret = false
else if not isObject?
sub = syncState.paths.add(sub)
syncState.refreshAttributes.object.add(sub)
ret = false
if values?.value?
if isObject == 0 and isWritable == 1
cur = syncState.setValues.get(sub)
if not cur?
cur = [deviceData.values.value.get(sub), values.value]
syncState.setValues.set(sub, cur)
else
cur[1] = values.value
else
if not isObject?
syncState.refreshAttributes.object.add(sub)
ret = false
if not isWritable?
syncState.refreshAttributes.writable.add(sub)
ret = false
if existTimestamp >= (timestamps.exist or 1)
return
childrenTimestamp = existTimestamp
for i in [path.length - 1...0] by -1
existTimestamp = 0
p = path.slice(0, i)
iter = deviceData.paths.superset(p)
param = null
while sup = iter.next().value
param = sup if not sup.wildcard
if (t = deviceData.timestamps.exist.get(sup))?
existTimestamp = Math.max(existTimestamp, t)
if param?
if deviceData.values.exist.get(param)
isObject = deviceData.values.object.get(param)
objectTimestamp = deviceData.timestamps.object.get(param)
if isObject
if childrenTimestamp == 0
param = syncState.paths.add(param)
syncState.refreshGpn.set(param, syncState.refreshGpn.get(param) | ((1 << path.length - i) - 1))
ret = false
else if childrenTimestamp < (timestamps.exist or 1)
param = syncState.paths.add(param)
syncState.refreshGpn.set(param, syncState.refreshGpn.get(param) or 1)
ret = false
if not (objectTimestamp >= (timestamps.exist or 1))
param = syncState.paths.add(param)
syncState.refreshAttributes.object.add(param)
ret = false
# return ret
# else if existTimestamp >= (timestamps.exist or 1)
# return ret
else if p.indexOf('*') >= 0
subIter = deviceData.paths.subset(p)
while sub = subIter.next().value
continue if not deviceData.values.exist.get(sub)
# TODO check if not object
pp = sub.concat(path.slice(sub.length))
ts = {}
ts[k] = v for k, v of timestamps
ret &&= processDeclaration(sessionData, pp, ts)
if existTimestamp >= (timestamps.exist or 1)
return ret
childrenTimestamp = existTimestamp
p = syncState.paths.add([])
ret = false
syncState.refreshGpn.set(p, syncState.refreshGpn.get(p) or 1)
return ret
loadPath = (sessionData, path) ->
tl = []
for i in [path.length...0] by -1
p = path.slice(0, i)
loaded = 0
iter = sessionData.deviceData.paths.superset(p)
while sup = iter.next().value
if (l = sessionData.deviceData.loaded.get(sup)) > loaded
loaded = l
if loaded
tl = tl.slice(0, tl.length - (loaded - 1))
break
tl.push(p)
if not tl.length
return true
sessionData.toLoad ?= []
sessionData.toLoad = sessionData.toLoad.concat(tl)
return false
processInstances = (sessionData, parent, parameters, keys, minInstances, maxInstances) ->
instancesToDelete = sessionData.syncState.instancesToDelete.get(parent)
if not instancesToDelete?
instancesToDelete = new Set()
sessionData.syncState.instancesToDelete.set(parent, instancesToDelete)
instancesToCreate = sessionData.syncState.instancesToCreate.get(parent)
if not instancesToCreate?
instancesToCreate = new InstanceSet()
sessionData.syncState.instancesToCreate.set(parent, instancesToCreate)
counter = 0
for p in parameters
++ counter
if counter > maxInstances
instancesToDelete.add(p)
else if counter <= minInstances
instancesToDelete.delete(p)
superset = instancesToCreate.superset(keys)
for inst in superset
++ counter
if counter > maxInstances
instancesToCreate.delete(inst)
subset = instancesToCreate.subset(keys)
for inst in subset
++ counter
if counter <= minInstances
instancesToCreate.delete(inst)
instancesToCreate.add(JSON.parse(JSON.stringify(keys)))
while counter < minInstances
++ counter
instancesToCreate.add(JSON.parse(JSON.stringify(keys)))
return
applyDeclaration = (sessionData, path, state, timestamps, values) ->
if state == 100
if not values? or Object.keys(values).length == 0
return state
timestamps = {}
sessionData.syncState ?= {
paths: new PathSet()
refreshAttributes: {
exist: new Set()
object: new Set()
writable: new Set()
value: new Set()
}
setValues: new Map()
refreshGpn: new Map()
virtualParameters: {}
instancesToDelete: new Map()
instancesToCreate: new Map()
}
decs = device.getAliasDeclarations(path, timestamps.exist ? 1)
if state <= 1
loaded = true
for d in decs
loaded &&= loadPath(sessionData, d[0])
return 1 if not loaded
if decs.length == 1
satisfied = processDeclaration(sessionData, decs[0][0], timestamps, values)
if satisfied
return 100
else
return 2
else
if state <= 2
satisfied = true
for d in decs
satisfied &&= processDeclaration(sessionData, d[0], d[1], d[2])
return 2 if not satisfied
unpacked = device.unpack(sessionData.deviceData, path)
if values.exist?
if Array.isArray(values.exist)
minInstances = values.exist[0]
maxInstances = values.exist[1]
else
minInstances = maxInstances = values.exist
parent = path.slice(0, -1)
if Array.isArray(path[path.length - 1])
keys = {}
for p, i in path[path.length - 1] by 2
keys[p] = path[path.length - 1][i + 1]
else if path[path.length - 1] == '*'
keys = {}
if (path.wildcard | path.alias) & ((1 << (path.length - 1)) - 1) == 0
processInstances(sessionData, parent, unpacked, keys, minInstances, maxInstances)
else
parentsUnpacked = device.unpack(sessionData.deviceData, parent)
for parent in parentsUnpacked
processInstances(sessionData, parent, device.unpack(sessionData.deviceData, parent.concat([path[parent.length]])), keys, minInstances, maxInstances)
satisfied = true
for up in unpacked
satisfied &&= processDeclaration(sessionData, path, timestamps, values)
if satisfied
return 100
else
return 4
commitVirtualParameter = (sessionData, name, declaration, update) ->
t = {}
v = {}
if update.writable?
if update.writable[0] <= 0
t.writable = sessionData.timestamp + update.writable[0]
else
t.writable = Math.min(sessionData.timestamp, update.writable[0])
if declaration.timestamps.writable?
t.writable = Math.max(declaration.timestamps.writable, t.writable)
v.writable = +update.writable[1]
else if declaration.timestamps.writable?
throw new Error('Virtual parameter must provide declared attributes')
if update.value?
if update.value[0] <= 0
t.value = sessionData.timestamp + update.value[0]
else
t.value = Math.min(sessionData.timestamp, update.value[0])
if declaration.timestamps.value?
t.value = Math.max(declaration.timestamps.value, t.value)
v.value = device.sanitizeParameterValue(update.value[1])
else if declaration.timestmaps.value?
throw new Error('Virtual parameter must provide declared attributes')
device.set(sessionData.deviceData, ['VirtualParameters', name], t, v)
runExtensions = (sessionData, revision, _extensions, callback) ->
sessionData.extensionsCache[revision] ?= {}
obj = {}
for e in _extensions
obj[JSON.stringify(e)] = e
counter = 1
for k, v of obj
++ counter
do (k, v) ->
extensions.run(v, (err, res) ->
sessionData.extensionsCache[revision][k] = res
if -- counter == 0 or err
counter = 0
return callback(err)
)
if -- counter == 0
return callback()
rpcResponse = (sessionData, id, rpcRes, callback) ->
if id != generateRpcId(sessionData)
return callback(new Error('Request ID not recognized'))
++ sessionData.rpcCount
rpcReq = sessionData.rpcRequest
if not rpcReq.next?
sessionData.rpcRequest = null
else if rpcReq.next == 'getInstanceKeys'
instanceNumber = rpcRes.instanceNumber
parameterNames = []
instanceValues = {}
for k, v of rpcReq.instanceValues
n = "#{rpcReq.objectName}#{rpcRes.instanceNumber}.#{k}"
parameterNames.push(n)
instanceValues[n] = v
if parameterNames.length == 0
sessionData.rpcRequest = null
else
sessionData.rpcRequest = {
type: 'GetParameterValues'
parameterNames: parameterNames
next: 'setInstanceKeys'
instanceValues: instanceValues
}
else if rpcReq.next == 'setInstanceKeys'
parameterList = []
for p in rpcRes.parameterList
if p[1] != rpcReq.instanceValues[p[0]]
parameterList.push(
[p[0]].concat(device.sanitizeParameterValue([rpcReq.instanceValues[p[0]], p[2]])))
if not parameterList.length
sessionData.rpcRequest = null
else
sessionData.rpcRequest = {
type: 'SetParameterValues'
parameterList: parameterList
}
timestamp = sessionData.timestamp
revision = sessionData.revisions.reduce(((a, b) -> a + (b >> 1)), 0) + 1
v.revision = revision for k, v of sessionData.deviceData.timestamps
v.revision = revision for k, v of sessionData.deviceData.values
switch rpcRes.type
when 'GetParameterValuesResponse'
return callback(new Error('Response type does not match request type')) if rpcReq.type isnt 'GetParameterValues'
for p in rpcRes.parameterList
device.set(sessionData.deviceData, common.parsePath(p[0]),
{exist: timestamp, object: timestamp, value: timestamp},
{exist: 1, object: 0, value: p.slice(1)})
when 'GetParameterNamesResponse'
return callback(new Error('Response type does not match request type')) if rpcReq.type isnt 'GetParameterNames'
if rpcReq.parameterPath.endsWith('.')
root = common.parsePath(rpcReq.parameterPath.slice(0, -1))
else
root = common.parsePath(rpcReq.parameterPath)
params = []
params.push([root.concat('*'), {exist: timestamp}])
for p in rpcRes.parameterList
if common.endsWith(p[0], '.')
path = common.parsePath(p[0][0...-1])
if not rpcReq.nextLevel
params.push([path.concat('*'), {exist: timestamp}])
params.push([path,
{exist: timestamp, object: timestamp, writable: timestamp},
{exist: 1, object: 1, writable: if p[1] then 1 else 0}])
else
params.push([common.parsePath(p[0]),
{exist: timestamp, object: timestamp, writable: timestamp},
{exist: 1, object: 0, writable: if p[1] then 1 else 0}])
# Sort such that actual parameters are set before wildcard ones
params.sort((a, b) ->
al = a[0].length
bl = b[0].length
-- bl if b[0][bl - 1] == '*'
-- al if a[0][al - 1] == '*'
return bl - al
)
p = root.slice()
p.length = params[params.length - 1].length
p.fill('*', root.length)
loadPath(sessionData, p)
loadParameters(sessionData, (err) ->
return callback(err) if err
for p in params
device.set(sessionData.deviceData, p[0], p[1], p[2])
return callback()
)
return
when 'SetParameterValuesResponse'
return callback(new Error('Response type does not match request type')) if rpcReq.type isnt 'SetParameterValues'
for p in rpcReq.parameterList
device.set(sessionData.deviceData, common.parsePath(p[0]),
{exist: timestamp, object: timestamp, writable: timestamp, value: timestamp},
{exist: 1, object: 0, writable: 1, value: p.slice(1)})
when 'AddObjectResponse'
device.set(sessionData.deviceData, common.parsePath(rpcReq.objectName + rpcRes.instanceNumber),
{exist: timestamp, object: timestamp},
{exist: 1, object: 1})
when 'DeleteObjectResponse'
device.set(sessionData.deviceData, common.parsePath(rpcReq.objectName.slice(0, -1)),
{exist: timestamp})
else
return callback(new Error('Response type not recognized'))
return callback()
rpcFault = (sessionData, id, faultResponse, callback) ->
# TODO Consider handling invalid parameter faults by automatically refreshing
# relevant data model portions
delete sessionData.rpcRequest
return callback(null, faultResponse)
deserialize = (sessionDataString, callback) ->
cache.getProvisionsAndVirtualParameters((err, hash, provisions, virtualParameters) ->
return callback(err) if err
sessionData = JSON.parse(sessionDataString)
if sessionData.presetsHash? and sessionData.presetsHash != hash
return callback(new Error('Preset hash mismatch'))
sessionData.cache = {
provisions: provisions
virtualParameters: virtualParameters
}
for d in sessionData.declarations
common.addPathMeta(d[0])
deviceData = initDeviceData()
keys = ['exist', 'object', 'writable', 'value']
for r in sessionData.deviceData
path = deviceData.paths.add(r[0])
if r[1]
deviceData.loaded.set(path, r[1])
for k, i in keys
if r[2 + i]?
deviceData.timestamps[k].setRevisions(path, r[2 + i])
if r[2 + keys.length + i]?
deviceData.values[k].setRevisions(path, r[2 + keys.length + i])
sessionData.deviceData = deviceData
return callback(null, sessionData)
)
serialize = (sessionData, callback) ->
deviceData = []
keys = ['exist', 'object', 'writable', 'value']
iter = sessionData.deviceData.paths.find([], 99)
while not (p = iter.next()).done
path = p.value
e = [path]
e[1] = sessionData.deviceData.loaded.get(path) || 0
for k, i in keys
if r = sessionData.deviceData.timestamps[k].getRevisions(path)
e[2 + i] = r
if r = sessionData.deviceData.values[k].getRevisions(path)
e[2 + keys.length + i] = r
deviceData.push(e)
oldDeviceData = sessionData.deviceData
oldSyncState = sessionData.syncState
oldToLoad = sessionData.toLoad
oldCache = sessionData.cache
sessionData.deviceData = deviceData
delete sessionData.syncState
delete sessionData.toLoad
delete sessionData.cache
sessionDataString = JSON.stringify(sessionData)
sessionData.deviceData = oldDeviceData
sessionData.syncState = oldSyncState
sessionData.toLoad = sessionData.toLoad
sessionData.cache = sessionData.cache
return callback(null, sessionDataString)
end = (sessionData, callback) ->
db.saveDevice(sessionData.deviceId, sessionData.deviceData, sessionData.new, (err) ->
return callback(err) if err
db.redisClient.del("session_#{sessionData.id}", (err) ->
callback(err, sessionData.new)
)
)
exports.init = init
exports.inform = inform
exports.addProvisions = addProvisions
exports.clearProvisions = clearProvisions
exports.rpcRequest = rpcRequest
exports.rpcResponse = rpcResponse
exports.rpcFault = rpcFault
exports.end = end
exports.serialize = serialize
exports.deserialize = deserialize