feat: add user management, refs NOISSUE

song_of_the_day/Auth/ConfigurationAD.cs

@@ -10,7 +10,8 @@ public class ConfigurationAD
 
     public string LDAPserver { get; set; } = string.Empty;
     public string LDAPQueryBase { get; set; } = string.Empty;
+    public string LDAPUserQueryBase { get; set; } = string.Empty;
 
-    public string Crew { get; set; } = string.Empty;
-    public string Managers { get; set; } = string.Empty;
+    public string CrewGroup { get; set; } = string.Empty;
+    public string ManagerGroup { get; set; } = string.Empty;
 }

song_of_the_day/Auth/IAuthenticationService.cs

@@ -0,0 +1,4 @@
+public interface IAuthenticationService  
+{  
+    bool Authenticate(string userName, string password);  
+}

song_of_the_day/Auth/LdapAuthenticationService.cs

@@ -0,0 +1,15 @@
+public class LdapAuthenticationService : IAuthenticationService
+{
+    private readonly IConfiguration _configuration;
+
+    public LdapAuthenticationService(IConfiguration configuration)
+    {
+        _configuration = configuration;
+    }
+
+    public bool Authenticate(string username, string password)
+    {
+        var ldapInstance = LdapIntegration.Instance;
+        return ldapInstance.TestLogin(username, password);
+    }
+}

song_of_the_day/Auth/PhoneClaimCodeProviderService.cs

@@ -0,0 +1,58 @@
+public class PhoneClaimCodeProviderService
+{
+    private Dictionary<string, string> _phoneClaimCodes;
+    private Dictionary<string, string> _phoneClaimNumbers;
+
+    public PhoneClaimCodeProviderService()
+    {
+        _phoneClaimCodes = new Dictionary<string, string>();
+        _phoneClaimNumbers = new Dictionary<string, string>();
+    }
+
+    private static Random random = new Random();
+
+    private static string RandomString(int length)
+    {
+        const string chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
+        return new string(Enumerable.Repeat(chars, length)
+            .Select(s => s[random.Next(s.Length)]).ToArray());
+    }
+
+    public void GenerateClaimCodeForUserAndNumber(string username, string phoneNumber)
+    {
+        var generatedCode = string.Empty;
+        if (IsCodeGeneratedForUser(username))
+        {
+            generatedCode = _phoneClaimCodes[username];
+        }
+        else
+        {
+            generatedCode = RandomString(6);
+            _phoneClaimCodes[username] = generatedCode;
+            _phoneClaimNumbers[username] = phoneNumber;
+        }
+
+        SignalIntegration.Instance.SendMessageToUserAsync("Your phone number validation code is: " + generatedCode, phoneNumber);
+    }
+    
+    public string ValidateClaimCodeForUser(string code, string username)
+    {
+        var result = false;
+        result = _phoneClaimCodes[username] == code;
+
+        if (result)
+        {
+            _phoneClaimCodes.Remove(username);
+            var number = _phoneClaimNumbers[username];
+            _phoneClaimNumbers.Remove(username);
+            return number;
+        }
+
+        return string.Empty;
+    }
+    
+    public bool IsCodeGeneratedForUser(string username)
+    {
+        return _phoneClaimCodes.ContainsKey(username);
+    }
+}

song_of_the_day/Config/AppConfiguration.cs

@@ -16,22 +16,21 @@ public class AppConfiguration
         this.SignalGroupId = Environment.GetEnvironmentVariable("SIGNAL_GROUP_ID") ?? "group.Wmk1UTVQTnh0Sjd6a0xiOGhnTnMzZlNkc2p2Q3c0SXJiQkU2eDlNU0hyTT0=";
         this.WebUIBaseURL = Environment.GetEnvironmentVariable("WEB_BASE_URL") ?? "https://sotd.disi.dev/";
         this.UseBotTag = bool.Parse(Environment.GetEnvironmentVariable("USE_BOT_TAG") ?? "true");
+        this.AverageDaysBetweenRequests = int.Parse(Environment.GetEnvironmentVariable("AVERAGE_DAYS_BETWEEN_REQUESTS") ?? "2");
         var managersGroupName = Environment.GetEnvironmentVariable("LDAP_ADMINGROUP") ?? "admins";
-        var userGroupName = Environment.GetEnvironmentVariable("LDAP_USERGROUP") ?? "everyone";
+        var userGroupName = Environment.GetEnvironmentVariable("LDAP_USERGROUP") ?? "everybody";
         this.LDAPConfig = new ConfigurationAD() {
-            Username = Environment.GetEnvironmentVariable("LDAP_BIND") ?? "cn=admin.dc=disi,dc=dev",
+            Username = Environment.GetEnvironmentVariable("LDAP_BIND") ?? "cn=admin,dc=disi,dc=dev",
             Password = Environment.GetEnvironmentVariable("LDAP_PASS") ?? "adminPass2022!",
             Port = !string.IsNullOrEmpty(Environment.GetEnvironmentVariable("LDAP_BIND")) ? int.Parse(Environment.GetEnvironmentVariable("LDAP_BIND")) : 389,
             LDAPserver = Environment.GetEnvironmentVariable("LDAP_URL") ?? "192.168.1.108",
             LDAPQueryBase = Environment.GetEnvironmentVariable("LDAP_BASE") ?? "dc=disi,dc=dev",
-            Crew = $"cn={userGroupName},ou=groups,dc=disi,dc=dev",
-            Managers = $"cn={managersGroupName},ou=groups,dc=disi,dc=dev"
+            LDAPUserQueryBase = Environment.GetEnvironmentVariable("LDAP_BASE") ?? "ou=people,dc=disi,dc=dev",
+            CrewGroup = $"cn={userGroupName},ou=groups,dc=disi,dc=dev",
+            ManagerGroup = $"cn={managersGroupName},ou=groups,dc=disi,dc=dev"
         };
     }
 
-    public string Crew { get; set; } = string.Empty;
-    public string Managers { get; set; } = string.Empty;
-
     public string SignalAPIEndpointUri
     {
         get; private set;
@@ -87,6 +86,11 @@ public class AppConfiguration
         get; private set;
     }
 
+    public int AverageDaysBetweenRequests
+    {
+        get; private set;
+    }
+
     public ConfigurationAD LDAPConfig {
         get; private set;
     }

song_of_the_day/Controllers/AuthController.cs

@@ -0,0 +1,40 @@
+
+using Microsoft.AspNetCore.Mvc;
+using System.Security.Claims;
+using Microsoft.AspNetCore.Authentication.Cookies;
+using Microsoft.AspNetCore.Authentication;
+
+public class AuthController : Controller
+{
+    [HttpPost]
+    public async Task<IActionResult> Login(string username, string password)
+    {
+        var ldapService = HttpContext.RequestServices.GetService<LdapAuthenticationService>();
+        if (ldapService.Authenticate(username, password))
+        {
+            var claims = new[] { new Claim(ClaimTypes.Name, username) };
+            var identity = new ClaimsIdentity(claims, CookieAuthenticationDefaults.AuthenticationScheme);
+            await HttpContext.SignInAsync(new ClaimsPrincipal(identity));
+            return RedirectToSamePageIfPossible();
+        }
+
+        ViewBag.Error = "Invalid credentials";
+        return RedirectToSamePageIfPossible();
+    }
+
+    [HttpPost]
+    public async Task<IActionResult> Logout()
+    {
+        await HttpContext.SignOutAsync();
+        return RedirectToSamePageIfPossible();
+    }
+
+    private IActionResult RedirectToSamePageIfPossible()
+    {
+        if (Request.Headers.ContainsKey("Referer"))
+        {
+            return Redirect(Request.Headers["Referer"].ToString());
+        }
+        return RedirectToPage("/");
+    }
+}

song_of_the_day/Data/Migrations/20250516161831_UpdateUserModel.Designer.cs

@@ -0,0 +1,142 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace song_of_the_day.DataMigrations
+{
+    [DbContext(typeof(DataContext))]
+    [Migration("20250516161831_UpdateUserModel")]
+    partial class UpdateUserModel
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Song", b =>
+                {
+                    b.Property<int>("SongId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("SongId"));
+
+                    b.Property<string>("Artist")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Url")
+                        .HasColumnType("text");
+
+                    b.HasKey("SongId");
+
+                    b.ToTable("Songs");
+                });
+
+            modelBuilder.Entity("SongSuggestion", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int?>("SongId")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SongId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("SongSuggestions");
+                });
+
+            modelBuilder.Entity("SuggestionHelper", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Description")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Title")
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("SuggestionHelpers");
+                });
+
+            modelBuilder.Entity("User", b =>
+                {
+                    b.Property<int>("UserId")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("UserId"));
+
+                    b.Property<bool>("AssociationInProgress")
+                        .HasColumnType("boolean");
+
+                    b.Property<bool>("IsIntroduced")
+                        .HasColumnType("boolean");
+
+                    b.Property<string>("LdapUserName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .HasColumnType("text");
+
+                    b.Property<string>("NickName")
+                        .HasColumnType("text");
+
+                    b.Property<string>("SignalMemberId")
+                        .HasColumnType("text");
+
+                    b.HasKey("UserId");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("SongSuggestion", b =>
+                {
+                    b.HasOne("Song", "Song")
+                        .WithMany()
+                        .HasForeignKey("SongId");
+
+                    b.HasOne("User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId");
+
+                    b.Navigation("Song");
+
+                    b.Navigation("User");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

song_of_the_day/Data/Migrations/20250516161831_UpdateUserModel.cs

@@ -0,0 +1,265 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace song_of_the_day.DataMigrations
+{
+    /// <inheritdoc />
+    public partial class UpdateUserModel : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_SongSuggestions_Songs_SongId",
+                table: "SongSuggestions");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_SongSuggestions_Users_UserId",
+                table: "SongSuggestions");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "SignalMemberId",
+                table: "Users",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "NickName",
+                table: "Users",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Users",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AddColumn<bool>(
+                name: "AssociationInProgress",
+                table: "Users",
+                type: "boolean",
+                nullable: false,
+                defaultValue: false);
+
+            migrationBuilder.AddColumn<string>(
+                name: "LdapUserName",
+                table: "Users",
+                type: "text",
+                nullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Title",
+                table: "SuggestionHelpers",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Description",
+                table: "SuggestionHelpers",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AlterColumn<int>(
+                name: "UserId",
+                table: "SongSuggestions",
+                type: "integer",
+                nullable: true,
+                oldClrType: typeof(int),
+                oldType: "integer");
+
+            migrationBuilder.AlterColumn<int>(
+                name: "SongId",
+                table: "SongSuggestions",
+                type: "integer",
+                nullable: true,
+                oldClrType: typeof(int),
+                oldType: "integer");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Url",
+                table: "Songs",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Songs",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Artist",
+                table: "Songs",
+                type: "text",
+                nullable: true,
+                oldClrType: typeof(string),
+                oldType: "text");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_SongSuggestions_Songs_SongId",
+                table: "SongSuggestions",
+                column: "SongId",
+                principalTable: "Songs",
+                principalColumn: "SongId");
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_SongSuggestions_Users_UserId",
+                table: "SongSuggestions",
+                column: "UserId",
+                principalTable: "Users",
+                principalColumn: "UserId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropForeignKey(
+                name: "FK_SongSuggestions_Songs_SongId",
+                table: "SongSuggestions");
+
+            migrationBuilder.DropForeignKey(
+                name: "FK_SongSuggestions_Users_UserId",
+                table: "SongSuggestions");
+
+            migrationBuilder.DropColumn(
+                name: "AssociationInProgress",
+                table: "Users");
+
+            migrationBuilder.DropColumn(
+                name: "LdapUserName",
+                table: "Users");
+
+            migrationBuilder.AlterColumn<string>(
+                name: "SignalMemberId",
+                table: "Users",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "NickName",
+                table: "Users",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Users",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Title",
+                table: "SuggestionHelpers",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Description",
+                table: "SuggestionHelpers",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<int>(
+                name: "UserId",
+                table: "SongSuggestions",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0,
+                oldClrType: typeof(int),
+                oldType: "integer",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<int>(
+                name: "SongId",
+                table: "SongSuggestions",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0,
+                oldClrType: typeof(int),
+                oldType: "integer",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Url",
+                table: "Songs",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Name",
+                table: "Songs",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AlterColumn<string>(
+                name: "Artist",
+                table: "Songs",
+                type: "text",
+                nullable: false,
+                defaultValue: "",
+                oldClrType: typeof(string),
+                oldType: "text",
+                oldNullable: true);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_SongSuggestions_Songs_SongId",
+                table: "SongSuggestions",
+                column: "SongId",
+                principalTable: "Songs",
+                principalColumn: "SongId",
+                onDelete: ReferentialAction.Cascade);
+
+            migrationBuilder.AddForeignKey(
+                name: "FK_SongSuggestions_Users_UserId",
+                table: "SongSuggestions",
+                column: "UserId",
+                principalTable: "Users",
+                principalColumn: "UserId",
+                onDelete: ReferentialAction.Cascade);
+        }
+    }
+}

song_of_the_day/Data/Migrations/DataContextModelSnapshot.cs

@@ -30,15 +30,12 @@ namespace song_of_the_day.DataMigrations
                     NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("SongId"));
 
                     b.Property<string>("Artist")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.Property<string>("Name")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.Property<string>("Url")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.HasKey("SongId");
@@ -57,10 +54,10 @@ namespace song_of_the_day.DataMigrations
                     b.Property<DateTime>("Date")
                         .HasColumnType("timestamp with time zone");
 
-                    b.Property<int>("SongId")
+                    b.Property<int?>("SongId")
                         .HasColumnType("integer");
 
-                    b.Property<int>("UserId")
+                    b.Property<int?>("UserId")
                         .HasColumnType("integer");
 
                     b.HasKey("Id");
@@ -81,11 +78,9 @@ namespace song_of_the_day.DataMigrations
                     NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
 
                     b.Property<string>("Description")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.Property<string>("Title")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.HasKey("Id");
@@ -101,19 +96,22 @@ namespace song_of_the_day.DataMigrations
 
                     NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("UserId"));
 
+                    b.Property<bool>("AssociationInProgress")
+                        .HasColumnType("boolean");
+
                     b.Property<bool>("IsIntroduced")
                         .HasColumnType("boolean");
 
+                    b.Property<string>("LdapUserName")
+                        .HasColumnType("text");
+
                     b.Property<string>("Name")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.Property<string>("NickName")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.Property<string>("SignalMemberId")
-                        .IsRequired()
                         .HasColumnType("text");
 
                     b.HasKey("UserId");
@@ -125,15 +123,11 @@ namespace song_of_the_day.DataMigrations
                 {
                     b.HasOne("Song", "Song")
                         .WithMany()
-                        .HasForeignKey("SongId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
+                        .HasForeignKey("SongId");
 
                     b.HasOne("User", "User")
                         .WithMany()
-                        .HasForeignKey("UserId")
-                        .OnDelete(DeleteBehavior.Cascade)
-                        .IsRequired();
+                        .HasForeignKey("UserId");
 
                     b.Navigation("Song");
 

song_of_the_day/Data/User.cs

@@ -7,4 +7,6 @@ public class User
     public string? Name { get; set; }
     public string? NickName { get; set; }
     public bool IsIntroduced { get; set; }
+    public bool AssociationInProgress { get; set; }
+    public string? LdapUserName { get; set; }
 }

song_of_the_day/LDAPIntegration/Data/LdapUser.cs

@@ -0,0 +1,7 @@
+public class LdapUser
+{
+    public string? UserId { get; set; }
+    public string? FirstName { get; set; }
+    public string? LastName { get; set; }
+    public string? Email { get; set; }
+}

song_of_the_day/LDAPIntegration/LdapIntegration.cs

@@ -0,0 +1,124 @@
+using System.Collections;
+using System.ComponentModel;
+using song_of_the_day;
+using System.DirectoryServices.Protocols;
+using System.Linq;
+
+public class LdapIntegration
+{
+    public static LdapIntegration? Instance;
+
+    private readonly string[] attributesToQuery = new string[]
+        {
+            "uid",
+            "givenName",
+            "sn",
+            "mail"
+        };
+
+    public LdapIntegration(string uri, int port, string adminBind, string adminPass)
+    {
+        this.Uri = uri;
+        this.Port = port;
+        this.AdminBind = adminBind;
+        this.AdminPass = adminPass;
+    }
+
+    private string Uri { get; set; }
+
+    private int Port { get; set; }
+
+    private string AdminBind { get; set; }
+
+    private string AdminPass { get; set; }
+
+    public bool TestLogin(string username, string password)
+    {
+        try
+        {
+            var userList = this.SearchInADAsUser(
+                AppConfiguration.Instance.LDAPConfig.LDAPQueryBase,
+                $"(uid={username})",
+                SearchScope.Subtree,
+                username,
+                password);
+        }
+        catch (LdapException ex)
+        {
+            if (ex.Message.Contains("credential is invalid"))
+            {
+                return false;
+            }
+            throw;
+        }
+        return true;
+    }
+
+    public List<LdapUser> SearchInAD(
+        string targetOU,
+        string query,
+        SearchScope scope
+        )
+    {
+        // search as admin
+        return this.SearchInADAsUser(targetOU, query, scope, this.AdminBind, this.AdminPass);
+    }
+
+    public List<LdapUser> SearchInADAsUser(
+        string targetOU,
+        string query,
+        SearchScope scope,
+        string userName,
+        string userPass
+        )
+    {
+        // on Windows the authentication type is Negotiate, so there is no need to prepend
+        // AD user login with domain. On other platforms at the moment only
+        // Basic authentication is supported
+        var authType = AuthType.Basic;
+
+        var user = userName.StartsWith("cn=") || userName.StartsWith("uid=") ? userName : "uid=" + userName + "," + AppConfiguration.Instance.LDAPConfig.LDAPUserQueryBase;
+
+        //var connection = new LdapConnection(ldapServer)
+        var connection = new LdapConnection(
+            new LdapDirectoryIdentifier(this.Uri, this.Port)
+            )
+        {
+            AuthType = authType,
+            Credential = new(user, userPass)
+        };
+
+        // the default one is v2 (at least in that version), and it is unknown if v3
+        // is actually needed, but at least Synology LDAP works only with v3,
+        // and since our Exchange doesn't complain, let it be v3
+        connection.SessionOptions.ProtocolVersion = 3;
+
+        // this is for connecting via LDAPS (636 port). It should be working,
+        // according to https://github.com/dotnet/runtime/issues/43890,
+        // but it doesn't (at least with Synology DSM LDAP), although perhaps
+        // for a different reason
+        //connection.SessionOptions.SecureSocketLayer = true;
+
+        connection.Bind();
+
+        var request = new SearchRequest(targetOU, query, scope, attributesToQuery);
+
+        var response = (System.DirectoryServices.Protocols.SearchResponse)connection.SendRequest(request);
+
+        var userList = new List<LdapUser>();
+
+        foreach(SearchResultEntry result in response.Entries)
+        {
+            userList.Add(new LdapUser() {
+                UserId = result.Attributes["uid"][0].ToString(),
+                FirstName = result.Attributes["givenName"][0].ToString(),
+                LastName = result.Attributes["sn"][0].ToString(),
+                Email = result.Attributes["mail"][0].ToString(),
+            });
+        }
+
+        connection.Dispose();
+
+        return userList;
+    }
+}

song_of_the_day/Pages/Shared/_Layout.cshtml

@@ -1,4 +1,15 @@
-<!DOCTYPE html>
+@{
+    bool DoesUserHaveClaimedPhoneNumber()
+    {
+        using (var dci = DataContext.Instance)
+        {
+            var user = dci.Users.Where(u => u.LdapUserName == User.Identity.Name);
+            return user.Any();
+        }
+    }
+}
+
+<!DOCTYPE html>
 <html lang="en">
 <head>
     <meta charset="utf-8" />
@@ -26,9 +37,18 @@
                         <li class="nav-item">
                             <a class="nav-link text-dark" asp-area="" asp-page="/SuggestionHelpers">Suggestion Helpers</a>
                         </li>
+                        @if (this.User.Identity.IsAuthenticated && !DoesUserHaveClaimedPhoneNumber())
+                        {
+                            <li class="nav-item">
+                                <a class="nav-link text-dark" asp-area="" asp-page="/UnclaimedPhoneNumbers">Unclaimed Phone Numbers</a>
+                            </li>
+                        }
                     </ul>
                 </div>
             </div>
+            <div class="container" style="min-height: auto; width: 400px;">
+                <partial name="_LoginView" />
+            </div>
         </nav>
     </header>
     <div class="container">

song_of_the_day/Pages/Shared/_LoginView.cshtml

@@ -0,0 +1,36 @@
+@using Microsoft.AspNetCore.Authentication
+
+<div class="loginform">
+    @if (!this.User.Identity.IsAuthenticated)
+    {
+        <form method="post" action="Auth/Login">
+            <div>
+                <label for="username">Username:</label>
+            </div>
+            <div>
+                <input name="username" type="text" />
+            </div>
+            <div>
+                <label for="password">Password:</label>
+            </div>
+            <div>
+                <input name="password" type="password" />
+            </div>
+            <div>
+                <input name="submit" type="submit" value="Login" />
+            </div>
+        </form>
+    }
+    else
+    {
+        <form method="post" action="Auth/Logout">
+            <div>
+                Welcome, @User.Identity.Name!
+            </div>
+            <div>
+                <input name="submit" type="submit" value="Logout" />
+            </div>
+        </form>
+    }
+
+</div>

song_of_the_day/Pages/UnclaimedPhoneNumbers.cshtml

@@ -0,0 +1,38 @@
+@page
+@model UnclaimedPhoneNumbersModel
+@{
+    ViewData["Title"] = "Unclaimed Phone Numbers";
+
+    var codeService = HttpContext.RequestServices.GetService<PhoneClaimCodeProviderService>();
+    var codeGenerated = codeService.IsCodeGeneratedForUser(User.Identity.Name);
+}
+
+<div class="text-left">
+    <table>
+        <tr>
+            <th>Phone Number</th>
+            <th>Claim</th>
+        </tr>
+        @foreach (var user in @Model.UnclaimedUsers)
+        {
+            var phone = user.SignalMemberId; var userId = user.UserId;
+            <tr>
+                <td>@phone</td>
+                <td>
+                    <form method="post">
+                        <input name="userIndex" value="@userId" type="hidden" /> 
+                        <input type="submit" title="Claim" value="Claim" disabled="@codeGenerated" />
+                    </form>
+                </td>
+            </tr>
+        }
+    </table>   
+    @if(codeGenerated)
+    {
+        <form method="post">
+            <label for="code">Verification code:</label>
+            <input type="text" id="code" name="code" />
+            <input type="submit" title="Verify" value="Verify" asp-page-handler="SubmitCode" />
+        </form>
+    } 
+</div>

song_of_the_day/Pages/UnclaimedPhoneNumbers.cshtml.cs

@@ -0,0 +1,64 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+using Microsoft.VisualBasic;
+
+namespace sotd.Pages;
+
+public class UnclaimedPhoneNumbersModel : PageModel
+{
+    private readonly ILogger<UserModel> _logger;
+
+    public UnclaimedPhoneNumbersModel(ILogger<UserModel> logger)
+    {
+        _logger = logger;
+    }
+
+    public int userId { get; set; }
+
+    [BindProperty]
+    public List<User> UnclaimedUsers { get; set; }
+
+    public void OnGet()
+    {
+        using (var dci = DataContext.Instance)
+        {
+            this.UnclaimedUsers = dci.Users.Where(u => string.IsNullOrEmpty(u.LdapUserName)).ToList();
+        }
+    }
+
+    public void OnPost(int userIndex)
+    {
+        using (var dci = DataContext.Instance)
+        {
+            var user = dci.Users.Find(userIndex);
+            var claimCodeService = HttpContext.RequestServices.GetService<PhoneClaimCodeProviderService>();
+            claimCodeService.GenerateClaimCodeForUserAndNumber(HttpContext.User.Identity.Name, user.SignalMemberId);
+            this.UnclaimedUsers = dci.Users.Where(u => string.IsNullOrEmpty(u.LdapUserName)).ToList();
+        }
+    }
+
+    public IActionResult OnPostSubmitCode(string code)
+    {
+        var claimCodeService = HttpContext.RequestServices.GetService<PhoneClaimCodeProviderService>();
+        var validatedNumber = claimCodeService.ValidateClaimCodeForUser(code, HttpContext.User.Identity.Name);
+        if (!string.IsNullOrEmpty(validatedNumber))
+        {
+            using (var dci = DataContext.Instance)
+            {
+                var user = dci.Users.Where(u => u.SignalMemberId == validatedNumber).FirstOrDefault();
+                if (user == default(User))
+                {
+                    throw new Exception("User with specified phone number not found!");
+                }
+                user.LdapUserName = HttpContext.User.Identity.Name;
+                dci.SaveChanges();
+            }
+        }
+        else
+        {
+            throw new Exception("Invalid code provided!");
+        }
+
+        return RedirectToPage("/");
+    }
+}

song_of_the_day/Program.cs

@@ -5,11 +5,17 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using System.DirectoryServices.Protocols;
+using System.Runtime.CompilerServices;
 
 SignalIntegration.Instance = new SignalIntegration(AppConfiguration.Instance.SignalAPIEndpointUri,
                                                     int.Parse(AppConfiguration.Instance.SignalAPIEndpointPort),
                                                     AppConfiguration.Instance.HostPhoneNumber);
 
+LdapIntegration.Instance = new LdapIntegration(AppConfiguration.Instance.LDAPConfig.LDAPserver,
+                                                    AppConfiguration.Instance.LDAPConfig.Port,
+                                                    AppConfiguration.Instance.LDAPConfig.Username,
+                                                    AppConfiguration.Instance.LDAPConfig.Password);
+
 var builder = WebApplication.CreateBuilder(args);
 
 Console.WriteLine("Setting up user check timer");
@@ -34,7 +40,9 @@ userCheckTimer.OnOccurence += async (s, ea) =>
                 Name = newUserContact.Name,
                 SignalMemberId = memberId,
                 NickName = string.Empty,
-                IsIntroduced = false
+                IsIntroduced = false,
+                LdapUserName = string.Empty,
+                AssociationInProgress = false,
             };
             dci.Users.Add(newUser);
             needsSaving = true;
@@ -47,7 +55,7 @@ userCheckTimer.OnOccurence += async (s, ea) =>
     }
     await dci.DisposeAsync();
 };
-//userCheckTimer.Start();
+userCheckTimer.Start();
 
 Console.WriteLine("Setting up user intro timer");
 var userIntroTimer = new CronTimer("*/1 * * * *", "Europe/Vienna", includingSeconds: false);
@@ -69,13 +77,23 @@ userIntroTimer.OnOccurence += async (s, ea) =>
     }
     await dci.DisposeAsync();
 };
-//userIntroTimer.Start();
+userIntroTimer.Start();
 
 
 Console.WriteLine("Setting up pick of the day timer");
 var pickOfTheDayTimer = new CronTimer("0 8 * * *", "Europe/Vienna", includingSeconds: false);
 pickOfTheDayTimer.OnOccurence += async (s, ea) =>
 {
+    var rand = new Random();
+    var num = rand.NextInt64();
+    var mod = num % AppConfiguration.Instance.AverageDaysBetweenRequests;
+
+    if (mod > 0)
+    {
+        Console.WriteLine("Skipping pick of the day today!");
+        return;   
+    }
+
     var dci = DataContext.Instance;
     var luckyUser = await dci.Users.ElementAtAsync((new Random()).Next(await dci.Users.CountAsync()));
     var userName = string.IsNullOrEmpty(luckyUser.NickName) ? luckyUser.Name : luckyUser.NickName;
@@ -85,88 +103,57 @@ pickOfTheDayTimer.OnOccurence += async (s, ea) =>
     SignalIntegration.Instance.SendMessageToUserAsync($"Today's (optional) suggestion helper to help you pick a song is:\n\n**{suggestion.Title}**\n\n*{suggestion.Description}*", luckyUser.SignalMemberId);
     SignalIntegration.Instance.SendMessageToUserAsync($"For now please just share your suggestion with the group - in the future I might ask you to share directly with me or via the website to help me keep track of past suggestions!", luckyUser.SignalMemberId);
 };
-//pickOfTheDayTimer.Start();
+pickOfTheDayTimer.Start();
 
-var connection = new LdapConnection(AppConfiguration.Instance.LDAPConfig.LDAPserver)
+var startUserAssociationProcess = (User userToAssociate) =>
 {
-    Credential = new(
-        AppConfiguration.Instance.LDAPConfig.Username,
-        AppConfiguration.Instance.LDAPConfig.Password
-    )
+    SignalIntegration.Instance.SendMessageToUserAsync($"Hi, I see you are not associated with any website user yet.", userToAssociate.SignalMemberId);
+    SignalIntegration.Instance.SendMessageToUserAsync($"If you haven't yet, please navigate to https://users.disi.dev to create a new account.", userToAssociate.SignalMemberId);
+    SignalIntegration.Instance.SendMessageToUserAsync($"Once you have done so, go to https://sotd.disi.dev, login, navigate to \"Unclaimed Phone Numbers\" and click on the \"Claim\" button to start the claim process.", userToAssociate.SignalMemberId);
+    SignalIntegration.Instance.SendMessageToUserAsync($"With a future update you will be required to submit songs via your user account - at that point you will be skipped during the selection process if you have not yet claimed your phone number!", userToAssociate.SignalMemberId);
 };
 
-var attributesToQuery = new string[]
+Console.WriteLine("Setting up LdapAssociation timer");
+var ldapAssociationTimer = new CronTimer("*/10 * * * *", "Europe/Vienna", includingSeconds: false);
+ldapAssociationTimer.OnOccurence += async (s, ea) =>
 {
-    "objectGUID",
-    "sAMAccountName",
-    "displayName",
-    "mail",
-    "whenCreated"
-};
-
-SearchResponse SearchInAD(
-    string ldapServer,
-    int ldapPort,
-    string domainForAD,
-    string username,
-    string password,
-    string targetOU,
-    string query,
-    SearchScope scope,
-    params string[] attributeList
-    )
+    var dci = DataContext.Instance;
+    var nonAssociatedUsers = dci.Users.Where(u => string.IsNullOrEmpty(u.LdapUserName) && !u.AssociationInProgress);
+    var needsSaving = false;
+    foreach (var user in nonAssociatedUsers)
     {
-    // on Windows the authentication type is Negotiate, so there is no need to prepend
-    // AD user login with domain. On other platforms at the moment only
-    // Basic authentication is supported
-    var authType = AuthType.Basic;
+        user.AssociationInProgress = true;
         
-    //var connection = new LdapConnection(ldapServer)
-    var connection = new LdapConnection(
-        new LdapDirectoryIdentifier(ldapServer, ldapPort)
-        )
-    {
-        AuthType = authType,
-        Credential = new(username, password)
-    };
-    // the default one is v2 (at least in that version), and it is unknown if v3
-    // is actually needed, but at least Synology LDAP works only with v3,
-    // and since our Exchange doesn't complain, let it be v3
-    connection.SessionOptions.ProtocolVersion = 3;
-
-    // this is for connecting via LDAPS (636 port). It should be working,
-    // according to https://github.com/dotnet/runtime/issues/43890,
-    // but it doesn't (at least with Synology DSM LDAP), although perhaps
-    // for a different reason
-    //connection.SessionOptions.SecureSocketLayer = true;
-
-    connection.Bind();
-
-    var request = new SearchRequest(targetOU, query, scope, attributeList);
-
-    return (SearchResponse)connection.SendRequest(request);
+        startUserAssociationProcess(user);
+        user.IsIntroduced = true;
+        needsSaving = true;
     }
 
-var searchResults = SearchInAD(
-    AppConfiguration.Instance.LDAPConfig.LDAPserver,
-    AppConfiguration.Instance.LDAPConfig.Port,
-    AppConfiguration.Instance.LDAPConfig.Username,
-    AppConfiguration.Instance.LDAPConfig.Password,
+    if (needsSaving)
+    {
+        await dci.SaveChangesAsync();
+    }
+    await dci.DisposeAsync();
+};
+ldapAssociationTimer.Start();
+
+var searchResults = LdapIntegration.Instance.SearchInAD(
     AppConfiguration.Instance.LDAPConfig.LDAPQueryBase,
-    new StringBuilder("(&")
-        .Append("(objectCategory=person)")
-        .Append("(objectClass=user)")
-        .Append($"(memberOf={_configurationAD.Crew})")
-        .Append("(!(userAccountControl:1.2.840.113556.1.4.803:=2))")
-        .Append(")")
-        .ToString(),
-    SearchScope.Subtree,
-    attributesToQuery
+    $"(memberOf={AppConfiguration.Instance.LDAPConfig.CrewGroup})",
+    SearchScope.Subtree
 );
 
 // Add services to the container.
 builder.Services.AddRazorPages();
 builder.Services.AddOpenApi();
+builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
+    .AddCookie(options =>
+    {
+        options.LoginPath = "/Auth/Login";
+    });
+
+builder.Services.AddSingleton<LdapAuthenticationService>();
+builder.Services.AddSingleton<PhoneClaimCodeProviderService>();
 
 var app = builder.Build();
 
@@ -188,5 +175,15 @@ app.UseAuthorization();
 app.MapStaticAssets();
 app.MapRazorPages()
    .WithStaticAssets();
+app.MapControllerRoute(
+    name: "login",
+    pattern: "{controller=Auth}/{action=Login}"
+);
+app.MapControllerRoute(
+    name: "logout",
+    pattern: "{controller=Auth}/{action=Logout}"
+);
+app.MapGet("/debug/routes", (IEnumerable<EndpointDataSource> endpointSources) =>
+        string.Join("\n", endpointSources.SelectMany(source => source.Endpoints)));
 
 app.Run();