Hi all,
First off, I am a total noob with javascript, node, mongo etc etc. I
have been playing with the extension scripts and thought I would share my
findings with anyone that is interested.
I have had a heck of a time trying to get Genieacs to query a collection from
mongodb. I have made a simple provisioning collection with serialNumber, SIP
user and SIP pass but this could apply to anything.
1. For testing purposes I have set my test device to inform every 20
seconds, then apply the preset to a "2 PERIODIC" event and my device serial -
means I can test end to end.
2. Genieacs will cache your extension script. Meaning if you change the
script on the fly, it will not pick up the updates. The way I have been working
around this is to rename the script then update the provision to include the
new name.
3. This one makes sense but took me a while, if a script faults or
errors, it will not run again until you clear the fault in the GUI. (Think this
is on a per device basis)
4. If you look at sandbox.js under genieacs/lib, there is a 'log'
function. This is SUPER handy as if you start genieacs-cwmp and log to file
(genieacs-cwmp >> /var/log/genieacs-cwmp.log 2>>
/var/log/genieacs-cwmp-err.log) you can then tail the file and see what your
script is doing.
5. Change the group permissions on the log folder to include genieacs.
6. This took me a LONG time to figure out - any arguments that you pass
into the function ARE NOT STRINGS, I spent hours wondering why my mongo query
kept returning no results, it was because I had to convert the serial to a
string first.
Ok here is the meat of it. Have omitted any specific details.
Provision in Genieacs GUI:
let serial = declare("InternetGatewayDevice.DeviceInfo.SerialNumber", {value:
1});
let response = ext("a7", "getSIP", serial.value[0]);
log('provision script is running: ' + serial.value[0] + ' username= ' +
response.username +' password: ' + response.password + ' device: '+
response.serial);
Here is the script genieacs/config/ext/a7.js
----------------------------------------------
function getSIP(device,callback) {
var MongoClient,mongodb;
mongodb = require('mongodb');
MongoClient = mongodb.MongoClient;
MongoClient.connect('mongodb://127.0.0.1/genieacs',
function(err, db) {
var col;
var name = "serialNum";
var query = {};
query[name] = String(device);
if (err) {
return ('Unable to connect .
Error:', err);
} else {
col = db.collection('voice');
col.find(query, {
_id: 0,
serialNum: 0
}).toArray(function(err, results) {
if (err) {
return err;
}else {
db.close();
if(results.length == 0){
callback(null,'no results');
}
else{
let SIPParams = {
username: results[0].voiceUser,
password: results[0].voicePass,
serial: device
};
callback(null,SIPParams);
} // end else
} // end else
}); // .toArray
anon function
} // end else
}); // end MongoClient.connect
} // end getSIP function
exports.getSIP = getSIP; // make available to genieacs
----------------------------------------------
Here is the output from tail -f /var/loggenieacs-cwmp.log
2017-03-12T20:41:47.513Z [INFO] 10.203.115.1
FCB698-G%2D240G%2DP-CHORUS1621210409V01: Inform; cpeRequestId="1234"
informEvent="2 PERIODIC" informRetryCount=0
2017-03-12T20:41:47.586Z [INFO] 10.203.115.1
FCB698-G%2D240G%2DP-CHORUS1621210409V01: Script: provision script is running:
<device serial> username= <sip username> password: <sip password> device:
<serial again, checking to see argument passed>
Thanks,
David White
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