Connecting to SQL Server with Javascript

 Javascript, Tutorials  No Responses »
Jul 022011
 

Hi All,

I have just worked up a short script to search a SQL server using Javascript.
Using ActiveX and the ADoDB.Connection object this enables me to build a little HTA frontend to do what I need.

Firstly, we create the ADODB object.

var objConnection = new ActiveXObject("adodb.connection");

Then, set the options we want for the connection.
I’m connecting to a SQL server, that is hosted on “server1”, and the database i want is “db1”, and I’m connecting with username and passwords.

var strConn = "driver={sql server};server=server1;database=db1;uid=username;password=password";

Then we open the connection with the options specified.

objConnection.Open(strConn);

Once the connection has been opened, we use the ADODB.Recordset object to execute a query and retrieve results from SQL.


var rs = new ActiveXObject("ADODB.Recordset");
var strQuery = "SELECT * FROM users WHERE username = 'user1'";
rs.Open(strQuery,objConnection);

Once the query has been executed, the results will be stored in the recordset.
You will now be able to view the results using the standard recordset functions.


rs.MoveFirst
while(!rs.eof) {
//Do your thing here
rs.movenext;
}

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Active Directory With Javascript : Using SQL Dialect to Query AD

 Active Directory, Javascript  No Responses »
May 232011
 

Hi All,

The last few posts I’ve posted used the SQL syntax method to query Active Directory.
This is different to my previous posts where I was using the IADs interface.
With the IADs interface, we would bind to an object and query it that way, with ActiveX Data Objects, we use SQL-like syntax to query Active Directory

This codeblock below will select all users from the domain.


objRootDSE = GetObject("LDAP://RootDSE");
strDomain = objRootDSE.Get("DefaultNamingContext");
/*This gets the Default Naming context, i.e. the domain root*/

objConnection = new ActiveXObject("ADODB.Connection");
objConnection.Provider="ADsDSOObject";
objConnection.Open("ADs Provider");
objCommand = new ActiveXObject("ADODB.Command");
objCommand.ActiveConnection = objConnection;

/*This sets up the Connection to AD, sets the provider to ADsDSOObject, and creates an object that we can use to execute a command*/

var strDom = "LDAP://"+strDomain;
/* The strDom string will later become part of the SQL command that we will execute. If you want to specify a OU or CN to search, here would be the place to put it. */

objCommand.CommandText = "select name from '"+strDom+" WHERE objectCategory = 'user'';

/* Next up is the command itself.*/

objRecordSet = objCommand.Execute();

/* Then we execute the command */
/* Once executed, the command will return an enumeration of the results.*/
/* We will use the standard JS enumeration methods here to get what we need*/

objRecordSet.Movefirst;
while(!(objRecordSet.EoF)) {
objRecordSet.Fields("name").value; // This will be the fields that you Selected in the command's value, if you've selected more than one then you will need a loop or multiple statements to get it all.
objRecordSet.MoveNext;
}

The codeblock will need modification to suit your needs but it well let you search Active Directory with ease from JScript.

References
SQL Dialect
Searching with ActiveX Data Objects (ADO)
Active Directory Services Data Services Objects

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Active Directory With JScript : How to Search for Users

 Active Directory, Javascript  15 Responses »
May 202011
 

Hi All,

I’ve created a function to search for users in Active Directory.
It’s fairly similar to the previous query to get the Domain Controllers.
The function accepts 2 parameters, the first being the username that’s being searched for, and the second is the type of search, e.g. begins with, or contains.

This code can also easily be modified to show all users in Active Directory by removing the samaccountname section in the query.


function Search(search,SearchType) {
var arrSearchResult = [];
var strSearch = '';
switch(SearchType) {
case "contains":
strSearch = "*"+search+"*";
break;
case "begins":
strSearch = search+"*";
break;
case "ends":
strSearch = "*"+search;
break;
case "exact":
strSearch = search;
break;
default:
strSearch = "*"+search+"*";
break;
}
objRootDSE = GetObject("LDAP://RootDSE");
strDomain = objRootDSE.Get("DefaultNamingContext");

strOU = "OU=Users"; // Set the OU to search here.
strAttrib = "name,samaccountname"; // Set the attributes to retrieve here.

objConnection = new ActiveXObject("ADODB.Connection");
objConnection.Provider="ADsDSOObject";
objConnection.Open("ADs Provider");
objCommand = new ActiveXObject("ADODB.Command");
objCommand.ActiveConnection = objConnection;
var Dom = "LDAP://"+strOU+","+strDomain;
var arrAttrib = strAttrib.split(",");
objCommand.CommandText = "select '"+strAttrib+"' from '"+Dom+"' WHERE objectCategory = 'user' AND objectClass='user' AND samaccountname='"+search+"' ORDER BY samaccountname ASC";

try {

objRecordSet = objCommand.Execute();

objRecordSet.Movefirst;
while(!(objRecordSet.EoF)) {
var locarray = new Array();
for(var y = 0; y < arrAttrib.length; y++) { locarray.push(objRecordSet.Fields(y).value); } arrSearchResult.push(locarray); objRecordSet.MoveNext; } return arrSearchResult; } catch(e) { alert(e.message); } }

This function will return an array within an array with the strAttrib defining which fields are retrieved.
The output can be parsed with 2 for loops like so :


var arrResults = Search('user');
for(a in arrResults) {
for(b in arrResults[a]) {
alert(arrResults[a][b]);
}
}

That code snippet will alert all the attributes of the user queried.

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Active Directory With Javascript : How to Get All The Domain Controllers in Your Domain

 Active Directory, Javascript  No Responses »
May 192011
 

Hi All,

Another quick one while I’m working on these.

The following will give you the names of all your Domain Controllers in the Domain Controllers OU or at least the computers in the Domain Controllers OU.


function GetDC() {

var arrDCs = [];

objRootDSE = GetObject("LDAP://RootDSE");
strDomain = objRootDSE.Get("DefaultNamingContext");
objConnection = new ActiveXObject("ADODB.Connection");
objConnection.Provider="ADsDSOObject";
objConnection.Open("ADs Provider");
objCommand = new ActiveXObject("ADODB.Command");
objCommand.ActiveConnection = objConnection;
var Dom = "LDAP://OU=Domain Controllers,"+strDomain;
objCommand.CommandText = "select name from '"+Dom+"' WHERE objectCategory = 'computer' ORDER BY name ASC";

objRecordSet = objCommand.Execute();

objRecordSet.Movefirst;

while(!(objRecordSet.EoF)) {
arrDCs.push(objRecordSet.Fields('Name').Value);
objRecordSet.MoveNext;
}
return arrDCs;
}

This function will return an array containing a list of the members names in the Domain Controllers OU.
The list that is returned can be modified by changing the search query.

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Active Directory with Javascript : How to Get The Distinguished Name

 Active Directory, Javascript  No Responses »
May 192011
 

Hi all,

I covered this in another post, but thought I would make it separate to make it easier to find.

The following code block lets you get the distinguished name of the username that is passed into this function.


function GetDN(strUsername) {

var objUserDN = new ActiveXObject("NameTranslate");
objUserDN.Init(1,"< DOMAIN NAME HERE >");
objUserDN.Set(3,"< DOMAIN NAME HERE >\\"+strUsername);
strUserDN = objUserDN.get(1)
return strUserDN;
}

This codeblock does the following :

  1. Creates a new NameTranslate Object and binds objUserDN to it
  2. Initialises NameTranslate with the Init method with the ‘1’ setting the type of bind used, which is Domain in this case.
  3. Sets the type of translation used and the username to be translated by using the set method, the 3 specifies that the username that is input is in the NT format of “domain\User”
  4. Gets the Distinguished Name by using the Get method with a parameter of 1 which specifies that it should get the RFC 1779 formatted name.
  5. Returns the distinguished name

References :
ADS_NAME_INITTYPE_ENUM Enumeration
ADS_NAME_TYPE_ENUM Enumeration

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