feat: add UserManagementService with temp-password creation and deactivation
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Chris Chen
@@ -0,0 +1,232 @@
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using Microsoft.AspNetCore.Identity;
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using Microsoft.EntityFrameworkCore;
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using ROLAC.API.Data;
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using ROLAC.API.DTOs.Shared;
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using ROLAC.API.DTOs.Users;
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using ROLAC.API.Entities;
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namespace ROLAC.API.Services;
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public class UserManagementService : IUserManagementService
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{
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private readonly UserManager<AppUser> _userManager;
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private readonly AppDbContext _db;
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public UserManagementService(UserManager<AppUser> userManager, AppDbContext db)
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{
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_userManager = userManager;
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_db = db;
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}
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// ── GetPaged ─────────────────────────────────────────────────────────────
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public async Task<PagedResult<UserListItemDto>> GetPagedAsync(
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int page, int pageSize, string? search)
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{
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var query = from u in _userManager.Users
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join m in _db.Members.IgnoreQueryFilters()
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on u.MemberId equals (int?)m.Id into mg
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from m in mg.DefaultIfEmpty()
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select new { u, m };
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if (!string.IsNullOrWhiteSpace(search))
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{
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var s = search.Trim().ToLower();
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query = query.Where(x =>
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x.u.Email!.ToLower().Contains(s) ||
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(x.m != null && (
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x.m.FirstName_en.ToLower().Contains(s) ||
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x.m.LastName_en.ToLower().Contains(s) ||
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(x.m.NickName != null && x.m.NickName.ToLower().Contains(s)))));
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}
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var total = await query.CountAsync();
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var rows = await query
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.OrderBy(x => x.u.Email)
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.Skip((page - 1) * pageSize).Take(pageSize)
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.Select(x => new
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{
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x.u.Id, x.u.Email, x.u.MemberId, x.u.IsActive,
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x.u.LanguagePreference, x.u.LastLoginAt, x.u.CreatedAt,
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MemberDisplayName = x.m != null
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? (x.m.NickName ?? x.m.FirstName_en) + " " + x.m.LastName_en
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: (string?)null,
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})
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.ToListAsync();
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// Batch-load roles
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var userIds = rows.Select(r => r.Id).ToList();
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var roleMap = await (
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from ur in _db.UserRoles
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join r in _db.Roles on ur.RoleId equals r.Id
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where userIds.Contains(ur.UserId)
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select new { ur.UserId, r.Name }
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).ToListAsync();
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var rolesByUser = roleMap
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.GroupBy(x => x.UserId)
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.ToDictionary(g => g.Key, g => g.Select(x => x.Name!).ToList());
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var items = rows.Select(r => new UserListItemDto
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{
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Id = r.Id,
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Email = r.Email ?? "",
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MemberId = r.MemberId,
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MemberDisplayName = r.MemberDisplayName,
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IsActive = r.IsActive,
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LanguagePreference = r.LanguagePreference,
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LastLoginAt = r.LastLoginAt,
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CreatedAt = r.CreatedAt,
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Roles = rolesByUser.GetValueOrDefault(r.Id, []),
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}).ToList();
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return new PagedResult<UserListItemDto>
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{ Items = items, TotalCount = total, Page = page, PageSize = pageSize };
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}
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// ── GetById ──────────────────────────────────────────────────────────────
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public async Task<UserDto?> GetByIdAsync(string id)
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{
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var user = await _userManager.FindByIdAsync(id);
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if (user is null) return null;
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var roles = await _userManager.GetRolesAsync(user);
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var memberName = user.MemberId.HasValue
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? await _db.Members.IgnoreQueryFilters()
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.Where(m => m.Id == user.MemberId)
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.Select(m => (m.NickName ?? m.FirstName_en) + " " + m.LastName_en)
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.FirstOrDefaultAsync()
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: null;
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return new UserDto
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{
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Id = user.Id,
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Email = user.Email ?? "",
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MemberId = user.MemberId,
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MemberDisplayName = memberName,
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Roles = roles.ToList(),
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IsActive = user.IsActive,
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LanguagePreference = user.LanguagePreference,
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LastLoginAt = user.LastLoginAt,
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CreatedAt = user.CreatedAt,
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};
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}
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// ── Create ───────────────────────────────────────────────────────────────
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public async Task<CreateUserResult> CreateAsync(CreateUserRequest request)
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{
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// Validate Member exists (FindAsync bypasses query filter — intentional)
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var member = await _db.Members.FindAsync(request.MemberId)
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?? throw new InvalidOperationException(
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$"Member {request.MemberId} does not exist.");
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// One user per member
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if (_userManager.Users.Any(u => u.MemberId == request.MemberId))
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throw new InvalidOperationException(
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"This member already has a user account.");
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// Unique email
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if (await _userManager.FindByEmailAsync(request.Email) is not null)
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throw new InvalidOperationException(
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$"Email '{request.Email}' is already in use.");
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var tempPassword = GenerateTempPassword();
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var user = new AppUser
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{
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UserName = request.Email,
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Email = request.Email,
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EmailConfirmed = true,
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MemberId = request.MemberId,
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LanguagePreference = request.LanguagePreference,
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IsActive = true,
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CreatedAt = DateTime.UtcNow,
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};
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var result = await _userManager.CreateAsync(user, tempPassword);
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if (!result.Succeeded)
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throw new InvalidOperationException(
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string.Join("; ", result.Errors.Select(e => e.Description)));
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await _userManager.AddToRolesAsync(user, request.Roles);
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return new CreateUserResult { UserId = user.Id, TempPassword = tempPassword };
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}
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// ── Update ───────────────────────────────────────────────────────────────
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public async Task UpdateAsync(string id, UpdateUserRequest request)
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{
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var user = await _userManager.FindByIdAsync(id)
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?? throw new KeyNotFoundException($"User {id} not found.");
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user.Email = request.Email;
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user.UserName = request.Email;
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user.NormalizedEmail = request.Email.ToUpperInvariant();
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user.NormalizedUserName = request.Email.ToUpperInvariant();
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user.LanguagePreference = request.LanguagePreference;
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user.IsActive = request.IsActive;
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user.LockoutEnd = request.IsActive ? null : DateTimeOffset.MaxValue;
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var updateResult = await _userManager.UpdateAsync(user);
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if (!updateResult.Succeeded)
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throw new InvalidOperationException(
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string.Join("; ", updateResult.Errors.Select(e => e.Description)));
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var currentRoles = await _userManager.GetRolesAsync(user);
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var toRemove = currentRoles.Except(request.Roles).ToList();
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var toAdd = request.Roles.Except(currentRoles).ToList();
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if (toRemove.Count > 0) await _userManager.RemoveFromRolesAsync(user, toRemove);
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if (toAdd.Count > 0) await _userManager.AddToRolesAsync(user, toAdd);
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}
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// ── Deactivate ───────────────────────────────────────────────────────────
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public async Task DeactivateAsync(string id)
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{
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var user = await _userManager.FindByIdAsync(id)
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?? throw new KeyNotFoundException($"User {id} not found.");
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user.IsActive = false;
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user.LockoutEnd = DateTimeOffset.MaxValue;
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await _userManager.UpdateAsync(user);
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}
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// ── ResetPassword ────────────────────────────────────────────────────────
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public async Task<string> ResetPasswordAsync(string id)
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{
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var user = await _userManager.FindByIdAsync(id)
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?? throw new KeyNotFoundException($"User {id} not found.");
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var tempPassword = GenerateTempPassword();
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var token = await _userManager.GeneratePasswordResetTokenAsync(user);
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var result = await _userManager.ResetPasswordAsync(user, token, tempPassword);
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if (!result.Succeeded)
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throw new InvalidOperationException(
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string.Join("; ", result.Errors.Select(e => e.Description)));
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return tempPassword;
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}
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// ── Helpers ──────────────────────────────────────────────────────────────
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private static string GenerateTempPassword()
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{
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const string upper = "ABCDEFGHJKLMNPQRSTUVWXYZ";
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const string lower = "abcdefghjkmnpqrstuvwxyz";
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const string digits = "23456789";
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const string special = "!@#$%^";
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const string all = upper + lower + digits + special;
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var rng = new Random();
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var pw = new char[12];
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pw[0] = upper[rng.Next(upper.Length)];
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pw[1] = lower[rng.Next(lower.Length)];
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pw[2] = digits[rng.Next(digits.Length)];
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pw[3] = special[rng.Next(special.Length)];
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for (var i = 4; i < 12; i++) pw[i] = all[rng.Next(all.Length)];
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return new string(pw.OrderBy(_ => rng.Next()).ToArray());
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}
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}
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