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Modifying 'Publish a SmartApp for OpenT2T - HMAC support'

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This commit is contained in:
OpenT2T
2017-05-01 20:10:13 -07:00
parent bbdc8faa93
commit 284828c42f
1 changed files with 92 additions and 37 deletions
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129
smartapps/opent2t/opent2t-smartapp-test.src/opent2t-smartapp-test.groovy
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@@ -1,3 +1,7 @@
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import java.security.InvalidKeyException;
/**
* OpenT2T SmartApp Test
*
@@ -116,14 +120,21 @@ def installed() {
def updated() {
log.debug "Updating with settings: ${settings}"
if(state.deviceSubscriptionMap == null){
//Initialize state variables if didn't exist.
if( state.deviceSubscriptionMap == null ){
state.deviceSubscriptionMap = [:]
log.debug "deviceSubscriptionMap created."
}
if( state.locationSubscriptionMap == null){
state.locationSubscriptionMap = [:]
if( state.locationSubscriptionMap == null ){
state.locationSubscriptionMap = [:]
log.debug "locationSubscriptionMap created."
}
if(state.verificationKeyMap == null){
state.verificationKeyMap = [:]
log.debug "verificationKeyMap created."
}
unsubscribe()
registerAllDeviceSubscriptions()
}
@@ -132,9 +143,11 @@ def initialize() {
log.debug "Initializing with settings: ${settings}"
state.deviceSubscriptionMap = [:]
log.debug "deviceSubscriptionMap created."
registerAllDeviceSubscriptions()
state.locationSubscriptionMap = [:]
log.debug "locationSubscriptionMap created."
state.verificationKeyMap = [:]
log.debug "verificationKeyMap created."
registerAllDeviceSubscriptions()
}
/*** Subscription Functions ***/
@@ -144,22 +157,12 @@ def registerAllDeviceSubscriptions() {
registerChangeHandler(inputs)
}
//Subscribe to events from a list of devices
def registerChangeHandler(myList) {
myList.each { myDevice ->
def theAtts = myDevice.supportedAttributes
theAtts.each {att ->
subscribe(myDevice, att.name, deviceEventHandler)
log.info "Registering for ${myDevice.displayName}.${att.name}"
}
}
}
//Endpoints function: Subscribe to events from a specific device
def registerDeviceChange() {
def subscriptionEndpt = params.subscriptionURL
def deviceId = params.deviceId
def myDevice = findDevice(deviceId)
def myDevice = findDevice(deviceId)
if( myDevice == null ){
httpError(404, "Cannot find device with device ID ${deviceId}.")
}
@@ -179,12 +182,18 @@ def registerDeviceChange() {
state.deviceSubscriptionMap[deviceId] << subscriptionEndpt
log.info "Added subscription URL: ${subscriptionEndpt} for ${myDevice.displayName}"
}
if(params.key != null){
state.verificationKeyMap[subscriptionEndpt] = params.key
log.info "Added verification key: ${params.key} for ${subscriptionEndpt}"
}
}
} catch (e) {
httpError(500, "something went wrong: $e")
}
log.info "Current subscription map is ${state.deviceSubscriptionMap}"
log.info "Current verification key map is ${state.verificationKeyMap}"
return ["succeed"]
}
@@ -206,6 +215,7 @@ def unregisterDeviceChange() {
} else {
state.deviceSubscriptionMap[deviceId].remove(subscriptionEndpt)
}
state.verificationKeyMap.remove(subscriptionEndpt)
log.info "Removed subscription URL: ${subscriptionEndpt} for ${myDevice.displayName}"
}
} else {
@@ -216,13 +226,14 @@ def unregisterDeviceChange() {
httpError(500, "something went wrong: $e")
}
log.info "Current subscription map is ${state.deviceSubscriptionMap}"
log.info "Current subscription map is ${state.deviceSubscriptionMap}"
log.info "Current verification key map is ${state.verificationKeyMap}"
}
//Endpoints function: Subscribe to device additiona/removal updated in a location
def registerDeviceGraph() {
def subscriptionEndpt = params.subscriptionURL
if (subscriptionEndpt != null && subscriptionEndpt != "undefined"){
subscribe(location, "DeviceCreated", locationEventHandler, [filterEvents: false])
subscribe(location, "DeviceUpdated", locationEventHandler, [filterEvents: false])
@@ -230,12 +241,19 @@ def registerDeviceGraph() {
if(state.locationSubscriptionMap[location.id] == null){
state.locationSubscriptionMap.put(location.id, [subscriptionEndpt])
log.info "Added subscription URL: ${subscriptionEndpt} for Location ${location.name}"
} else if (!state.locationSubscriptionMap[location.id].contains(subscriptionEndpt)){
log.info "Added subscription URL: ${subscriptionEndpt} for Location ${location.name}"
}else if (!state.locationSubscriptionMap[location.id].contains(subscriptionEndpt)){
state.locationSubscriptionMap[location.id] << subscriptionEndpt
log.info "Added subscription URL: ${subscriptionEndpt} for Location ${location.name}"
log.info "Added subscription URL: ${subscriptionEndpt} for Location ${location.name}"
}
if(params.key != null){
state.verificationKeyMap[subscriptionEndpt] = params.key
log.info "Added verification key: ${params.key} for ${subscriptionEndpt}"
}
log.info "Current location subscription map is ${state.locationSubscriptionMap}"
log.info "Current verification key map is ${state.verificationKeyMap}"
return ["succeed"]
} else {
httpError(400, "missing input parameter: subscriptionURL")
@@ -254,6 +272,7 @@ def unregisterDeviceGraph() {
} else {
state.locationSubscriptionMap[location.id].remove(subscriptionEndpt)
}
state.verificationKeyMap.remove(subscriptionEndpt)
log.info "Removed subscription URL: ${subscriptionEndpt} for Location ${location.name}"
}
}else{
@@ -263,27 +282,39 @@ def unregisterDeviceGraph() {
httpError(500, "something went wrong: $e")
}
log.info "Current location subscription map is ${state.locationSubscriptionMap}"
log.info "Current location subscription map is ${state.locationSubscriptionMap}"
log.info "Current verification key map is ${state.verificationKeyMap}"
}
//When events are triggered, send HTTP post to web socket servers
def deviceEventHandler(evt) {
def evt_device = evt.device
def evt_deviceType = getDeviceType(evt_device)
def deviceInfo
def params = [ body: [deviceName: evt_device.displayName, deviceId: evt_device.id, locationId: location.id] ]
if(evt.data != null){
def evtDevice = evt.device
def evtDeviceType = getDeviceType(evtDevice)
def deviceData = [];
if(evt.data != null){
def evtData = parseJson(evt.data)
log.info "Received event for ${evt_device.displayName}, data: ${evtData}, description: ${evt.descriptionText}"
log.info "Received event for ${evtDevice.displayName}, data: ${evtData}, description: ${evt.descriptionText}"
}
if(evtDeviceType == "thermostat") {
deviceData = [name: evtDevice.displayName, id: evtDevice.id, status:evtDevice.status, deviceType:evtDeviceType, manufacturer:evtDevice.manufacturerName, model:evtDevice.modelName, attributes: deviceAttributeList(evtDevice, evtDeviceType), locationMode: getLocationModeInfo(), locationId: location.id ]
} else {
deviceData = [name: evtDevice.displayName, id: evtDevice.id, status:evtDevice.status, deviceType:evtDeviceType, manufacturer:evtDevice.manufacturerName, model:evtDevice.modelName, attributes: deviceAttributeList(evtDevice, evtDeviceType), locationId: location.id ]
}
def params = [ body: deviceData ]
//send event to all subscriptions urls
log.debug "Current subscription urls for ${evt_device.displayName} is ${state.deviceSubscriptionMap[evt_device.id]}"
state.deviceSubscriptionMap[evt_device.id].each {
log.debug "Current subscription urls for ${evtDevice.displayName} is ${state.deviceSubscriptionMap[evtDevice.id]}"
state.deviceSubscriptionMap[evtDevice.id].each {
params.uri = "${it}"
if(state.verificationKeyMap[it] != null ){
def key = state.verificationKeyMap[it]
params.header = [Signature: ComputHMACValue(key, groovy.json.JsonOutput.toJson(params.body))]
}
log.trace "POST URI: ${params.uri}"
log.trace "Header: ${params.header}"
log.trace "Payload: ${params.body}"
try{
httpPostJson(params) { resp ->
@@ -301,15 +332,22 @@ def locationEventHandler(evt) {
switch(evt.name){
case "DeviceCreated":
case "DeviceDeleted":
def evt_device = evt.device
def evt_deviceType = getDeviceType(evt_device)
log.info "DeviceName: ${evt_device.displayName}, DeviceID: ${evt_device.id}, deviceType: ${evt_deviceType}"
def params = [ body: [ eventType:evt.name, deviceId: evt_device.id, locationId: location.id ] ]
def evtDevice = evt.device
def evtDeviceType = getDeviceType(evtDevice)
def params = [ body: [ eventType:evt.name, deviceId: evtDevice.id, locationId: location.id ] ]
if (evt.name == "DeviceDeleted" && state.deviceSubscriptionMap[deviceId] != null){
state.deviceSubscriptionMap.remove(evtDevice.id)
}
state.locationSubscriptionMap[location.id].each {
params.uri = "${it}"
if(state.verificationKeyMap[it] != null ){
def key = state.verificationKeyMap[it]
params.header = [Signature: ComputHMACValue(key, groovy.json.JsonOutput.toJson(params.body))]
}
log.trace "POST URI: ${params.uri}"
log.trace "Header: ${params.header}"
log.trace "Payload: ${params.body}"
try{
httpPostJson(params) { resp ->
@@ -326,6 +364,23 @@ def locationEventHandler(evt) {
}
}
private ComputHMACValue(key, data){
try {
SecretKeySpec secretKeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "HmacSHA1")
Mac mac = Mac.getInstance("HmacSHA1")
mac.init(secretKeySpec)
byte[] digest = mac.doFinal(data.getBytes("UTF-8"))
return byteArrayToString(digest)
} catch (InvalidKeyException e) {
log.error "Invalid key exception while converting to HMac SHA1"
}
}
private def byteArrayToString(byte[] data) {
BigInteger bigInteger = new BigInteger(1, data)
String hash = bigInteger.toString(16)
return hash
}
/*** Device Query/Update Functions ***/