53 lines
1.6 KiB
C#
53 lines
1.6 KiB
C#
using System;
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using System.Linq;
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using System.Security.Cryptography;
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using System.Text;
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using System.Web;
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using Microsoft.AspNetCore.Http;
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using Microsoft.AspNetCore.Mvc.RazorPages;
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using trainav.web.database;
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namespace trainav.web.Pages;
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public class LoginModel : PageModel {
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public void OnPost() {
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if (!Request.HasFormContentType || string.IsNullOrWhiteSpace(Request.Form["user"]) || string.IsNullOrWhiteSpace(Request.Form["pass"]))
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return;
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using var db = new Database.DbConn();
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var user = db.Users.FirstOrDefault(p => p.Username == Request.Form["user"].ToString() && p.Password == Request.Form["pass"].ToString().Sha256());
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if (user == null)
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return;
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var uid = user.UserId;
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HttpContext.Session.SetString("uid", uid.ToString());
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HttpContext.Session.SetString("authorized", "true");
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//TODO
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}
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}
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public static class StringExtensions {
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public static string Sha256(this string rawData) {
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// Create a SHA256
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using var sha256Hash = SHA256.Create();
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// ComputeHash - returns byte array
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var bytes = sha256Hash.ComputeHash(Encoding.UTF8.GetBytes(rawData));
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// Convert byte array to a string
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var builder = new StringBuilder();
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for (var i = 0; i < bytes.Length; i++)
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builder.Append(bytes[i].ToString("x2"));
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return builder.ToString();
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}
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public static string Base64Encode(this string plainText) {
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var plainTextBytes = Encoding.UTF8.GetBytes(plainText);
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return Convert.ToBase64String(plainTextBytes);
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}
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public static string UrlEncode(this string plainText) => HttpUtility.UrlEncode(plainText);
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public static string Delimit(this string input, int max) => input.PadRight(max, ' ').Substring(0, max).TrimEnd();
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} |