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cyracks  
#1 Posted : Tuesday, July 7, 2020 9:21:05 PM(UTC)
cyracks

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Joined: 6/5/2020(UTC)
Posts: 12
Slovenia

Thanks: 4 times
Hello,

I have some problems setting a "Database Authentication" model and can not find out why.

What I did:
1) set security provider to "Database Authentication" and set "Use custom security script" to True.
2) Write the following script (I left commented text, because I tried different scenarios)
Quote:

// string connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + user.Security.Repository.RepositoryPath + "\\Databases\\Northwind.mdb;Persist Security Info=False";
// string connectionString = "Provider=MSOLEDBSQL;Server=127.0.0.1;Database=EPKT;UID=sa;PWD=Bla";
// string connectionString = "Provider=SQLOLEDB.1;Data Source=127.0.0.1;Initial Catalog=EPKT;User ID=sa;Password=Bla;Login Prompt=False";
connetionString = "Data Source=127.0.0.1;Initial Catalog=EPKT;User ID=sa;Password=Bla"

// OleDbConnection connection = new OleDbConnection(connectionString);
// connection.Open();

SqlConnection connection = new SqlConnection(connetionString);
connection.Open();

// OleDbCommand command = new OleDbCommand(string.Format("select 1 from tUsers where UserID = {0} and Password = {1}", Helper.QuoteSingle(user.WebUserName), Helper.QuoteSingle(user.WebPassword)), connection);
// OleDbCommand command = new OleDbCommand("select 'demo' from tUsers where UserID = 'admin' and Password = 'admin'"), connection);
SQLCommand command = new SQLCommand("select 'demo' from tUsers where UserID = 'admin' and Password = 'admin'"), connection);

object group = command.ExecuteScalar();

if (group != null && group != DBNull.Value){
// user.AddSecurityGroup((string)group);
user.AddSecurityGroup("demo");
}else {
user.Error = "User unknown from the database.";
}


As I can see query to database is not executed so it is probably problem in connection string or driver ?

Is there any log file that can be checked for such errors ?
epf  
#2 Posted : Wednesday, July 8, 2020 9:26:29 AM(UTC)
epf

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Posts: 976
Switzerland

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Was thanked: 169 time(s) in 163 post(s)
if you use the SQLServer driver, connection string is like:
Server=myServerAddress;Database=myDatabase;Trusted_Connection=True

to test a login, the best is to use the 'Test a login' property in the Configuration->Configure Web Security dialog.
you can change the user name and password.
cyracks  
#3 Posted : Wednesday, July 8, 2020 8:02:25 PM(UTC)
cyracks

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Joined: 6/5/2020(UTC)
Posts: 12
Slovenia

Thanks: 4 times
For script:
Quote:

// http://csharp.net-inform...ql-server-connection.htm
connectionString = "Server=localhost;Database=EPKT;Trusted_Connection=True"

ReportExecutionLog log = Model;
log.LogMessage("Security script...");

SqlConnection connection = new SqlConnection(connectionString);
connection.Open();

SQLCommand command = new SQLCommand("select cgroup = 'demo' "), connection);

object group = command.ExecuteScalar();

if (group != null && group != DBNull.Value){
user.AddSecurityGroup("demo");
}else {
user.Error = "User unknown from the database.";
}



I get ('Test a login' property in the Configuration->Configure Web Security dialog)

ERROR: Authentication failed
User login name: test


Error is always the same, even if I write SQL query wrong exception "User unknown from the database" is never shown.

Query to database is not executed I also do not know where message from log.LogMessage("Security script...") is logged, so I could go step by step and debug what is the problem.
epf  
#4 Posted : Thursday, July 9, 2020 7:56:23 AM(UTC)
epf

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Posts: 976
Switzerland

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Your script is incorrect and does not even compile, here is a sample that should work:

Code:
@using System.Data
@using System.Data.SqlClient
@using Seal.Helpers
@{
    var connectionString = "Server=localhost;Database=Northwind;Trusted_Connection=True";

    SecurityUser user = Model;

    SqlConnection connection = new SqlConnection(connectionString);
    connection.Open();

    SqlCommand command = new SqlCommand("select cgroup = 'demo' ", connection);

    object group = command.ExecuteScalar();

    if (group != null && group != DBNull.Value){
    user.AddSecurityGroup("demo");
    }else {
    user.Error = "User unknown from the database.";
    }
}
thanks 1 user thanked epf for this useful post.
cyracks on 7/9/2020(UTC)
cyracks  
#5 Posted : Thursday, July 9, 2020 1:48:26 PM(UTC)
cyracks

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Joined: 6/5/2020(UTC)
Posts: 12
Slovenia

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Thank you.
ainaz_ama  
#6 Posted : Tuesday, October 20, 2020 8:21:59 AM(UTC)
ainaz_ama

Rank: Newbie

Groups: Registered
Joined: 9/29/2020(UTC)
Posts: 0
Iran (Islamic Republic Of)

Thanks: 2 times
Hello,

I have problem with database authentication.

I opened seal server manager, from Configuration=> configure web security I set the security provider to database authentication after that I set the use custom security script to true and I write the code below in the script:

@using System.Data
@using System.Data.Common
@using System.Data.SqlClient
@using Seal.Helpers
@{

SecurityUser user = Model;
string connectionString = "Provider=SQLOLEDB.1;Persist Security Info=False;Initial Catalog=MyDatabaseName;Data Source='My server's Ip address'";
SqlConnection connection = new SqlConnection(connectionString);
connection.Open();
SqlCommand command = new SqlCommand("SELECT dbo.UserGroups.UserGroupName FROM dbo.UserGroups INNER JOIN dbo.Users ON dbo.UserGroups.UserGroupId = dbo.Users.UserGroupId WHERE (dbo.Users.UserName = {0}) AND (dbo.Users.Password = {1}) , Helper.QuoteSingle(user.WebUserName), Helper.QuoteSingle(user.WebPassword)",connection);

object group = command.ExecuteScalar();

if (group != null && group != DBNull.Value)
{
user.AddSecurityGroup((string)group);
}
else
{
user.Error = "User unknown from the database.";
}

}

I have a database in Sql server, when testing it with my user information in the database through Test a login, I got an error :

ERROR: Authentication failed
User login name: Admin

Error:
Keyword not supported: 'provider'.

what should I do to solve this problem?

Would you please help me with this as soon as possible?

Thanks in advance,
Aynaz
epf  
#7 Posted : Tuesday, October 20, 2020 10:14:38 AM(UTC)
epf

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Posts: 976
Switzerland

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SqlConnection is the SQLServer driver (not OLEDB), so your connection string must be for SQLServer like:
Server=localhost;Database=Northwind;Trusted_Connection=True
thanks 1 user thanked epf for this useful post.
ainaz_ama on 10/24/2020(UTC)
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