Develop Reference

ServiceNow - Change a file name in Midserver

I am currently trying to replace the name of a file in the Mid Server after a scheduled export.
The idea here is that the file goes with the name in the format "file_name_datetime" and the customer needs "datetime_file_name" for the file to be correctly read by another system.
My main idea was to rename the file after the export to the correct format, but if there is a way of changing the file name to the required one I could do that also.
I would love to hear from you guys as I have no idea how can I do this.
Thanks in advance.

If anyone is interested in the answer, see below:
Script include:
initialize: function() {
this.filePath = gs.getProperty('directory_path');
this.midServer = gs.getProperty('midserver');
this.authMidServerBase64 = gs.getProperty('authmidserver');
},
nameChange: function(exportSetName) {
var exportGr = new GlideRecord("sys_export_set_run");
exportGr.addEncodedQuery("set.nameSTARTSWITH" + exportSetName);
exportGr.orderByDesc("completed");
exportGr.query();
if (exportGr.next()) {
var attachSysID = exportGr.ecc_agent_attachment.sys_id;
}
var attachGr = new GlideRecord("sys_attachment");
attachGr.addEncodedQuery("table_sys_idSTARTSWITH" + attachSysID);
attachGr.query();
if (attachGr.next()) {
var attachName = attachGr.file_name;
var attachDate = attachName.match((/\d+/));
var newName = attachDate + '_' + exportSetName + '.csv';
}
var jspr = new JavascriptProbe(this.midServer);
jspr.setName('FileNameChange'); // This can be any name
jspr.setJavascript('var ddr = new MidServer_script_include(); res = ddr.execute();');
jspr.addParameter("verbose", "true");
jspr.addParameter("skip_sensor", "true"); // prevent Discovery sensors running for the ECC input
jspr.addParameter("filename", this.filePath + "\\" + attachName);
jspr.addParameter("filePath", this.filePath);
jspr.addParameter("newName", this.filePath + "\\" + newName);
jspr.addParameter("operation", "rename");
return jspr.create();
},
Mid Server Script include:
initialize: function() {
/**
*** Set up the Packages references
**/
this.File = Packages.java.io.File;
this.FileOutputStream = Packages.java.io.FileOutputStream;
this.FileInputStream = Packages.java.io.FileInputStream;
this.Path = Packages.java.nio.file.Path;
this.Paths = Packages.java.nio.file.Paths;
this.Files = Packages.java.nio.file.Files;
this.StandardCopyOption = Packages.java.nio.file.StandardCopyOption;
/**
/* Set up the parameters
**/
this.verbose = probe.getParameter("verbose");
this.filePath = probe.getParameter("filePath");
this.filename = probe.getParameter("filename");
this.operation = probe.getParameter("operation");
this.newName = probe.getParameter("newName");
result = "initialize complete";
},
execute: function() {
if (this.operation == 'rename') {
this.fileRename(this.filename, this.newName);
}
return result;
},
fileRename: function(fileName, newName) {
result+= "\r\n Renaming file.";
this._debug(result);
try {
var res = this._moveFile(fileName, newName);
} catch (e) {
result += "\r\n Erro no renomeamento do ficheiro: " + e;
this._debug(result);
}
},
_moveFile: function(initialPath, targetPath) {
try {
this._debug("Initiating file move function");
var inPath = this.Paths.get(initialPath);
var tgPath = this.Paths.get(targetPath);
var res = this.Files.move(inPath, tgPath, this.StandardCopyOption.REPLACE_EXISTING);
result += "File successfully moved from: " + initialPath + " to: " + targetPath + " \r\n Result: " + res;
this._debug(result);
} catch (e) {
this._debug('Error:' + e);
}
},
_debug: function(m) {
if (this.verbose == "true") {
ms.log("::: Mid Server script include logger ::: " + m);
}
},
https://community.servicenow.com/community?id=community_question&sys_id=a56b38a6db326490fa192183ca961987

I have a problem with uploading my images with ckeditor

I have tried to upload images with ckeditor but my problem is that the images upload to the server folders but ddoesnt show in my ckeditor text area , it show server response error , any help please ?
This is my code :
router.post('/upload&responseType=json', function(req, res) {
var fs = require('fs');
var tmpPath = req.files.upload.name;
l = tmpPath.split('/').length;`enter code here`
var fileName = tmpPath.split('/')[l - 1] + "_" + "s";
var buf = new Buffer.from(req.files["upload"].data);
var newPath ='public/uploads/'+tmpPath;
console.log(newPath);
console.log(tmpPath);
console.log(fileName);
fs.writeFile(newPath,buf, function (err) {
if (err) console.log({err: err});
else {
html = "uploaded";
html += "<script type='text/javascript'>";
html += " var funcNum = " + req.query.CKEditorFuncNum + ";";
html += " var url = \"/uploads/" + fileName;
html += " var message = \"Uploaded file successfully\";";
html += "";
html += " window.parent.CKEDITOR.tools.callFunction(funcNum, url, message);";
html += "</script>";
res.send(html);
}
});
});
This is my ckeditor
CKEDITOR.config.customConfig = '/js/ckeditor_config.js';
CKEDITOR.replace(editor2,{ filebrowserUploadUrl: '/upload', });
And this my ckeditor config file :
CKEDITOR.editorConfig = function( config )
{
config.filebrowserUploadMethod = 'form';
config.toolbar = 'MyToolbar';
config.toolbar_MyToolbar =
[
['Source','Templates'],
['Cut','Copy','Paste','SpellChecker','-','Scayt'],
['Undo','Redo','-','Find','Replace'],
['Image','Flash','Table','HorizontalRule','Smiley','SpecialChar','PageBreak'],
['Maximize','-','About'],
'/',
['Bold','Italic','Underline','Strike','-','Subscript','Superscript'],
['NumberedList','BulletedList','-','Outdent','Indent','Blockquote','SelectAll','RemoveFormat'],
['Link','Unlink','Anchor'],
['Styles','Format','Font','FontSize'],
['TextColor','BGColor']
];
};

You do not have to send the whole HTML in the newer versions of ckeditor..
You are just supposed to send the URL as shown below:
res.send({
url: "<SERVER_URL>/public/uploads/" + fileName,
})
If you are working on localhost
replace SERVER_URL with something like http://localhost:3000
Another thing, you have to set
app.use(express.static('public/uploads'));
If you want to access the image using the URL mentioned above.

Write javascript array elements to file

I am trying to have a node js script write some coordinates to a csv file for use in a Newman CLI script. I have the following:
const axios = require('axios');
var move_decimal = require('move-decimal-point');
var sLat = 45.029830;
var sLon = -93.400891;
var eLat = 45.069523;
var eLon = -94.286001;
var arrLatLon = []
axios.get('http://router.project-osrm.org/route/v1/driving/' + sLon + ',' + sLat + ';' + eLon + ',' + eLat + '?steps=true')
.then(function (response) {
for (let i = 0; i < response.data.routes[0].legs.length; i++) {
//console.log(response.data)
for (let ii = 0; ii < response.data.routes[0].legs[i].steps.length; ii++) {
//console.log('leg ' + i + " - step " + ii + ": " + response.data.routes[0].legs[i].steps[ii].maneuver.location[1] + "," + response.data.routes[0].legs[i].steps[ii].maneuver.location[0]);
// Declaring Latitude as 'n' & Longitude as 'nn' for decimal calculations
var n = response.data.routes[0].legs[i].steps[ii].maneuver.location[1]
var nn = response.data.routes[0].legs[i].steps[ii].maneuver.location[0]
// Latitude calculatiuons to make 'lat' values API friendly
var y = move_decimal(n, 6)
var p = Math.trunc(y);
// Longitude calculations to make 'lon' values API friendly
var yy = move_decimal(nn, 6)
var pp = Math.trunc(yy);
arrLatLon.push(p + "," + pp);
}
console.log(arrLatLon)
}
})
I have been looking through and trying numerous different tutorials/code snippets regarding writing the array elements from arrLatLon to an output file on my local machine, but none have been successful. The current code outputs the lat,lon correctly, console.log(arrLatLon) outputs:
[ '45029830,-93400894',
'44982812,-93400740',
'44977444,-93400530',
'44973116,-93410884',
'44971101,-93450400',
'45035514,-93766885',
'45035610,-93766886',
'45081631,-94286752',
'45070849,-94282026' ]
any help would be greatly appreciated. Thanks.

With nodejs you can easily write files using the fs module
const fs = require('fs');
fs.writeFile("/tmp/test", "Hey there!", function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
in your case you can simply do something like
const fs = require('fs');
// I'm converting your array in a string on which every value is
// separated by a new line character
const output = arrLatLon.join("\n");
// write the output at /tmp/test
fs.writeFile("/tmp/test", output, function(err) {
if(err) {
return console.log(err);
}
console.log("The file was saved!");
});
Let me forward you to this question for more information Writing files in Node.js

Node.js Downloading multiples files asynchronously

In trying to get a hang of node.js asynchronous coding style, I decided to write a program that would read a text file containing a bunch of URLS to download and download each file. I started out writing a function to download just one file (which works fine), but having trouble extending the logic to download multiple files.
Here's the code:
var http = require("http"),
fs = require("fs"),
input = process.argv[2],
folder = "C:/Users/Wiz/Downloads/",
regex = /(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?/,
urls = null,
url = "",
filename = "";
fs.readFile(input, "utf8", function(e, data) {
console.log("Reading file: " + input);
if (e) console.log("Got error:" + e.message);
urls = data.split("\n");
for (var i = urls.length; i--;) {
url = urls[i];
if (!url.match(regex)) continue;
filename = folder + url.substring(url.lastIndexOf('/') + 1);
downloadQueue.addItem(url, filename);
}
});
var downloadQueue = {
queue: [],
addItem: function(p_sSrc, p_sDest) {
this.queue.push({
src: p_sSrc,
dest: p_sDest
});
if (this.queue.length === 1) {
this.getNext();
}
},
getNext: function() {
var l_oItem = this.queue[0];
http.get(l_oItem.src, function(response) {
console.log("Downloading: " + l_oItem.dest);
var file = fs.createWriteStream(l_oItem.dest);
response.on("end", function() {
file.end();
console.log("Download complete.");
downloadQueue.removeItem();
}).on("error", function(error) {
console.log("Error: " + error.message);
fs.unlink(l_oItem.dest);
});
response.pipe(file);
});
},
removeItem: function() {
this.queue.splice(0, 1);
if (this.queue.length != 0) {
this.getNext();
} else {
console.log("All items downloaded");
}
}
};
How do I structure the code so that the completion of the first download can signal the initiation of the next one. Please note that this exercise is just for learning purposes, to understand how asynchronous coding works. In practice, I'm sure there are much better tools out there to download multiple files.

Try simple at first, it look like you copy paste codes and quite don't understand what they do.
Do a simple loop, that get the url, and print something.
var http = require('http');
URL = require('url').parse('http://www.timeapi.org/utc/now?format=%25F%20%25T%20-%20%25N')
URL['headers'] = {'User-Agent': 'Hello World'}
// launch 20 queries asynchronously
for(var i = 0; i < 20; i++) {
(function(i) {
console.log('Query ' + i + ' started');
var req = http.request(URL, function(res) {
console.log('Query ' + i + ' status: ' + res.statusCode + ' - ' + res.statusMessage);
res.on('data', function(content){
console.log('Query ' + i + ' ended - ' + content);
});
});
req.on('error', function(err) {
console.log('Query ' + i + ' return error: ' + err.message);
});
req.end();
})(i);
}
All the urls will be fetched asynchronously. You can observe that the response does not arrive in order, but are still processed correctly.
The difficulty with async is not to do the things is parallel, because you just write like a single task, and execute multiple time. It becomes complicated when you need for instance to wait for all tasks to finished before continuing. And for that, have a look at promises

Here is what I started out with. Figuring that each download was invoked asynchronously, they would all be independent of each other.
var http = require("http"),
fs = require("fs"),
input = process.argv[2],
folder = "C:/Users/Wiz/Downloads/",
regex = /(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?/,
urls = null,
url = "",
filename = "";
fs.readFile(input, "utf8",
function(e, data) {
console.log("Reading file: " + input);
if (e) console.log("Got error:" + e.message);
urls = data.split("\n");
for (var i = urls.length; i--;) {
url = urls[i];
if (!url.match(regex)) continue;
filename = folder + url.substring(url.lastIndexOf('/') + 1);
http.get(url, function(response) {
var file = fs.createWriteStream(filename);
response.on("end", function() {
file.end();
});
response.pipe(file);
})
}
});

accessing a specific column in a csv file using javascript

My problem is simple. I would like to know if there is a way to access a specific column from a csv file which is in MS Excel format. There are about 40 fields or columns in the file. I want to access only 3 of these. Please guide me.
Thanks in advance
This is as far as I got. Can we count the number of columns in the file?
$(document).on("click","#bucket_list a",function(evt){
// console.log("ID :: ",evt.target.id);
var bucketID = evt.target.id;
evt.preventDefault();
// alert("Event Fired");
counter = 0;
//lists the bucket objects
s3Client.listObjects(params = {Bucket: bucketID}, function(err, data){
if (err) {
document.getElementById('status').innerHTML = 'Could not load objects from ' + bucketID;
} else {
//document.getElementById('status').innerHTML = 'Loaded ' + data.Contents.length + ' items from ' + bucketID;
var listStart = document.createElement("ul");
document.getElementById('status').appendChild(listStart);
for(var i=0; i<data.Contents.length;i++){
fileKey = data.Contents[i].Key;
if(fileKey.search(str) != -1) {
//var listItems = document.createElement("li");
//listItems.innerHTML = data.Contents[i].Key;
//listStart.appendChild(listItems);
fileList[i] = data.Contents[i].Key;
//alert(fileList[i]);
counter = counter + 1;
}
}
if(counter == 0){
alert("This bucket has no CSV files. Please try another bucket!");
}
// else{
// for(var i = 0; i<fileList.length;i++){
// alert("File: " + fileList[i]);
// }
// }
}
//to read the contents of the files into textviews
var file = fileList[0];
//console.log("Loading:: ", file);
s3Client.getObject(params={Bucket: bucketID, Key: file},function(err,data){
if(err != null){ alert("Failed to load object " + err); }
else{
//alert("Loaded " + data.ContentLength + " bytes");
var allDataLines = data.split(/\r\n|\n/);
var headers = allDataLines[0].split(',');
}
});
});
});
I am unable to figure out how to get only the second column.

Yes. You have to parse the csv file to get the values for a particular column.Refer the following post on how to read a CSV file in Javascript.
[How to read data From *.CSV file using javascript?
To give you a head start the logic is simple . You just have to split based on "," and do a if statement.