Integrate Grandstream gds3710 video doorbell

[rdc]

Is it possible to use the fresnoboy script to get the status of the lock. Would like to make a device in HS4 to show if the door is locked or unlocked

[fresnoboy]

Yes got to test it myself and this property doesn't seem to work in the version of .NET bundled with Homeseer.

There are other ways to ignore SSL validation through making a dummy callback function that always returns true but would need to look into it more

siegs, I am happy to upgrade to a newer version if that would help fix the problem... Still, its not that big a deal to use HTTP. I have ACL's on the network for security anyway.

thx
mike

[slegs]

I tried this, but it didn't work. I still got the SSL/TLS error in the log...

thx!
mike

Yes got to test it myself and this property doesn't seem to work in the version of .NET bundled with Homeseer.

There are other ways to ignore SSL validation through making a dummy callback function that always returns true but would need to look into it more

[fresnoboy]

If you add this line

handler.ServerCertificateCustomValidationCallback = System.Net.Http.HttpClientHandler.DangerousAcceptAnyServerCertificateValidator 

before this line

Dim client As new System.Net.Http.HttpClient(handler) 

I think it should solve ssl validation issues (though Im not at my test machine so cant test)

I tried this, but it didn't work. I still got the SSL/TLS error in the log...

thx!
mike

[rdc]

It works for me too using Http with no errors. Thanks

[slegs]

If you add this line

handler.ServerCertificateCustomValidationCallback = System.Net.Http.HttpClientHandler.DangerousAcceptAnyServerCertificateValidator 

before this line

Dim client As new System.Net.Http.HttpClient(handler) 

I think it should solve ssl validation issues (though Im not at my test machine so cant test)

[slegs]

No problem. Was interesting learning about Homeseer and vb.net!

there is probably a parameter on the HttpClient handler not to verify the SSL cert. will check

[fresnoboy]

Slegs, I just tried your updated script, and after switching to http in the GDS for the web interface (I was getting an TLS error from homeseer when trying to use HTTPS) it works perfectly, at least with fimrware 1.0.7.14.

Thanks very much for this! I was going to kludge this up with a wifi controlled relay, but this is very clean and works well.

thanks again!
mike

[slegs]

OK got this complete and tested on my customer's Homseer. Script of the schedule command is a lot more complicated due to the need to interact with Cookies.

Note, you need to be able to interact with the .Net Http classes. To enable this you need to have the following line in the [Settings] block of your Homeseer settings.ini file

ScriptingReferences=System.Net.Http;System.Net.Http.dll 

If you already have a ScriptingReferences line then add the two values to the end of the other entries after a comma

Homeseer will need to be restarted after changing this

Script is as before a one script file but it takes an event parameter which is the time to keep the gate open. Valid values are 0 or 5 to 480. 0 will disable any active timer and close the gate. A number between 5 and 480 will open the gate for that number of minutes. Once the timer elapses the gate will close automatically.

I suggest you save the script as something like gatetimer.vb in your scripts directory and then call it from multiple events with the parameter depending on your needs e.g a Disable Timer event sends 0, Open Gate 1 Hour sends 60

At top of script are the three values for you to change - Your GDS IP/Hostname in url format (use https if you GDS is enabled for https), your password for GDS GUI for the admin user and a value for which door to open (GDS can control 2 doors depending on wiring) - door 1 is "1", door 2 is "2" and for both doors set the value to "3"

Thanks

Sub Main(ByVal sTime As String)


'**********Your Custom Values************
' GDS3710 IP Address or Hostname e.g. https:/yourdyndns.org:1234
Dim sServer As String = "https://192.168.1.100"
' GDS3710 Password for Admin User
Dim sAdminPassword As String = "Password1234"
'Door 1 = 1, Door 2 = 2, Both Doors = 3
Dim sDoor As String = "3"
'**********Your Custom Values************

'Fixed Variables
Dim sResCode AS String
Dim sRetMsg AS String
Dim sChallengeCode AS String
Dim sIDCode AS String
Dim GateXMLDoc As New System.XML.XmlDocument()
Dim handler AS New System.Net.Http.HttpClientHandler()
Dim sGSKey As String = "GDS3710lZpRsFzCbM"
Dim sDoor1CodeEnable As String = "P15429"
Dim sDoor1CodeTime As String = "P15430"
Dim sDoor2CodeEnable As String = "P15455"
Dim sDoor2CodeTime As String = "P15456"
Dim sURL As String = ""
Dim sXML As String = ""
Dim sCookieUname As New System.Net.Cookie("uname", "admin")
Dim sCookieGDSKey As New System.Net.Cookie("gdsauthkey443", "643e985e113a50979fd245762be01a57")
Dim sEnable As String = "1"

'Parse Time Paramter - 0 disables timers
Dim iTime As Integer = CInt(sTime)
If iTime > 480 Then
sTime = "480"
ElseIf iTime > 0 and iTime < 5 Then
sTime = "5"
ElseIf iTime = 0 Then
sEnable = "0"
End If

hs.writelog("Gate Schedule: Params", "Door:" + sDoor + " Enable: " + sEnable + " Time: " + sTime)


Try

'First step of authorisation - Get Challenge Code
Dim sAuthStep1Query As String = "/goform/login?cmd=login&user=admin&type=0"
sURL=sServer+sAuthStep1Query
'hs.writelog("Gate Auth S1: URL", sURL)

GateXMLDoc.Load(sURL)

sResCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/ResCode").InnerText
'hs.writelog("Gate Auth S1: Result", sResCode)

If sResCode=0 Then
sChallengeCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/ChallengeCode").InnerText
'hs.writelog("Gate: Challenge Code", sChallengeCode)

Dim sAuthCode AS String = sChallengeCode + ":" + sGSKey +":" + sAdminPassword
'hs.WriteLog("Gate: Auth Code", sAuthCode)

Dim sAuthCodeMD5 AS String = md5sum(sAuthCode)
'hs.WriteLog("Gate: Auth Code MD5", sAuthCodeMD5)

'Second step of authorisation - Authorise and set cookie with session code. Set Cookie Values as prescribed by Grandstream
Dim sAuthStep2Query AS String = "/goform/login?cmd=login&user=admin&authcode=" + sAuthCodeMD5
sURL=sServer+sAuthStep2Query

'hs.writelog("Gate Auth S2: URL", sURL)

Dim authuri As New System.Uri(sURL)
handler.CookieContainer = new System.Net.CookieContainer()
handler.CookieContainer.Add(authuri, sCookieUname)
handler.CookieContainer.Add(authuri, sCookieGDSKey)

Dim client As new System.Net.Http.HttpClient(handler)
sXML = client.GetStringAsync(authuri).Result

GateXMLDoc.LoadXml(sXML)

sResCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/ResCode").InnerText
'hs.writelog("Gate Auth S2: Result", sResCode)

If sResCode=0 Then
'hs.writelog("Gate Auth S2: Success", sResCode)

'Set Timer - Depending on sDoor value this can be either door or both
'0 Value for sEnable disables timer and closes door
Dim sOpenQuery AS String
If sDoor = "3" Then
sOpenQuery = "/goform/config?cmd=set&" + sDoor1CodeEnable + "=" + sEnable + "&" + sDoor1CodeTime + "=" + sTime + "&" + sDoor2CodeEnable + "=" + sEnable + "&" + sDoor2CodeTime + "=" + sTime
ElseIf sDoor = "2" Then
sOpenQuery = "/goform/config?cmd=set&" + sDoor2CodeEnable + "=" + sEnable + "&" + sDoor2CodeTime + "=" + sTime
Else
sOpenQuery = "/goform/config?cmd=set&" + sDoor1CodeEnable + "=" + sEnable + "&" + sDoor1CodeTime + "=" + sTime
End If


sURL=sServer+sOpenQuery

'hs.writelog("Gate Open: URL", sURL)

Dim openuri as New System.Uri(sURL)

sXML = client.GetStringAsync(openuri).Result

GateXMLDoc.LoadXml(sXML)

sResCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/ResCode").InnerText

If sResCode=0 Then
'SUCCESFUL Timer Set
hs.writelog("Gate Timer: Success", sResCode)
Else
'FAILED Timer Set
sRetMsg = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/RetMsg").InnerText
hs.writelog("Gate Timer: Error", sRetMsg)
End If

Else
sRetMsg = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/RetMsg").InnerText
hs.writelog("Gate Auth S2: Error ", sRetMsg)
End If

Else
sRetMsg = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/RetMsg").InnerText
hs.writelog("Gate Auth S1: Error", sRetMsg)
End If

Catch ex As Exception

hs.WriteLog ("Gate: Error", ex.Message)

End Try

End Sub

Function md5sum(ByVal strToHash As String) As String

Dim md5Obj As New Security.Cryptography.MD5CryptoServiceProvider
Dim bytesToHash() As Byte = System.Text.Encoding.ASCII.GetBytes(strToHash)

bytesToHash = md5Obj.ComputeHash(bytesToHash)

Dim strResult As String = ""

For Each b As Byte In bytesToHash
strResult += b.ToString("x2")
Next

Return strResult

End Function 

[fresnoboy]

The command actually schedules a timer on the GDS from 5 to 480 minutes so it closes automatically. If you want to close early you just send another similar command clearing the timer. Its different to the Open method above which sends the open pulse. To use the timer, you need to have your gate wired to the GDS in a way that the Keep Open option from the GDS menu works. This can be tested before applying the API as all the API does is program the same command. Hope to get some time later today to work on this.

Ah, that makes sense. Send the same command with 0 mins?

I think mine is wired in a compatible way. Will check on that.

thanks again for the work here!

mike

[rdc]

Tried slegs script and it worked first time. Agree could use way to hold door open longer. Thanks

[slegs]

That would be great. Being able to keep it open, and then being able to close it (which happens once the GDS opens the relay that drives it) would be great.

The device is pretty nice, but the API is really complicated to deal with. Not sure why they went of of their way to make it so complicated.

thx
mike

The command actually schedules a timer on the GDS from 5 to 480 minutes so it closes automatically. If you want to close early you just send another similar command clearing the timer. Its different to the Open method above which sends the open pulse. To use the timer, you need to have your gate wired to the GDS in a way that the Keep Open option from the GDS menu works. This can be tested before applying the API as all the API does is program the same command. Hope to get some time later today to work on this.

[fresnoboy]

Yes, the Keep Open Door option works on a slightly different model in the API. Have coded it in bash and plan to do it shortly for Homseer vb.net too

Basically you can use api to program the Keep Open Door option from 5 minutes to 480 minutes assuming the GDS is wired properly to the door mechanism to allow this

That would be great. Being able to keep it open, and then being able to close it (which happens once the GDS opens the relay that drives it) would be great.

The device is pretty nice, but the API is really complicated to deal with. Not sure why they went of of their way to make it so complicated.

thx
mike

[slegs]

Yes, the Keep Open Door option works on a slightly different model in the API. Have coded it in bash and plan to do it shortly for Homseer vb.net too

Basically you can use api to program the Keep Open Door option from 5 minutes to 480 minutes assuming the GDS is wired properly to the door mechanism to allow this

[fresnoboy]

This is very helpful. Any chance this could be modified to keep the gate in an open state?

Sometimes when we have a party it is nice to keep the gate locked open.

Thx
mike

Hi All

I got some great help from this thread so thought i would feedback.

Here is one vb.net script that can be called as a Action from an Event to open the gate that doesnt use BigIP

Change sServer, sPin and sAdminPassword to your values

Sub Main(p AS object)

Dim sResCode AS String
Dim sRetMsg AS String
Dim sChallengeCode AS String
Dim sIDCode AS String
Dim GateXMLDoc As New System.XML.XmlDocument()
Dim sServer As String = "https://192.168.1.100"
Dim sPIN As String = "1234"
Dim sAdminPassword As String = "Password1234"
Dim sURL As String = ""

Try
'Parse XML Data First Layer
Dim sAuthQuery As String = "/goform/apicmd?cmd=0&user=admin"
sURL=sServer+sAuthQuery
'hs.writelog("Gate Auth: URL", sURL)

GateXMLDoc.Load(sURL)

sResCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/ResCode").InnerText
'hs.writelog("Gate Auth: Result", sResCode)

If sResCode=0 Then
sChallengeCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/ChallengeCode").InnerText
'hs.writelog("Gate: Challenge Code", sChallengeCode)

sIDCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/IDCode").InnerText
'hs.writelog("Gate: ID Code", sIDCode)

Dim sAuthCode AS String = sChallengeCode + ":" + sPIN +":" + sAdminPassword
'hs.WriteLog("Gate: Auth Code", sAuthCode)

Dim sAuthCodeMD5 AS String = md5sum(sAuthCode)
'hs.WriteLog("Gate: Auth Code MD5", sAuthCodeMD5)

Dim sOpenQuery AS String = "/goform/apicmd?cmd=1&user=admin&authcode=" + sAuthCodeMD5 + "&idcode=" + sIDCode + "&type=1"
sURL=sServer+sOpenQuery
'hs.writelog("Gate Auth: URL", sURL)

GateXMLDoc.Load(sURL)

sResCode = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/ResCode").InnerText
'hs.writelog("Gate Open: Result", sResCode)
If sResCode=0 Then
hs.writelog("Gate Open: Success", sResCode)
Else
sRetMsg = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/RetMsg").InnerText
hs.writelog("Gate Open: Return Message", sRetMsg)
End If
Else
sRetMsg = GateXMLDoc.DocumentElement.SelectSingleNode("/Configuration/RetMsg").InnerText
hs.writelog("Gate Auth: Falied", sRetMsg)
End If

Catch ex As Exception

hs.WriteLog ("Gate: XML Error", ex.Message)

End Try

End Sub

Function md5sum(ByVal strToHash As String) As String

Dim md5Obj As New Security.Cryptography.MD5CryptoServiceProvider
Dim bytesToHash() As Byte = System.Text.Encoding.ASCII.GetBytes(strToHash)

bytesToHash = md5Obj.ComputeHash(bytesToHash)

Dim strResult As String = ""

For Each b As Byte In bytesToHash
strResult += b.ToString("x2")
Next

Return strResult

End Function