346 lines
14 KiB
C#
346 lines
14 KiB
C#
global using Microsoft.AspNetCore.Builder;
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global using Microsoft.AspNetCore.Hosting;
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global using Microsoft.AspNetCore.Http;
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global using Microsoft.Data.SqlClient;
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global using System.Text;
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global using System.Text.Json.Nodes;
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global using static perubahan.Commons;
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global using static perubahan.Logging;
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global using static perubahan.Middlewares;
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global using static perubahan.Regices;
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global using System.Collections.Concurrent;
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global using System.Security.Cryptography;
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using System.Text.Json;
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using System.Runtime.InteropServices;
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namespace perubahan;
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internal static class Commons
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{
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internal readonly static string VerNum = "0.1.250515.1559";
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internal static ConcurrentDictionary<string,User> UserAccounts = [];
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internal static List<Deployment> Deployments = [];
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internal static List<Agent> Agents = [];
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internal static readonly string SecretKey = "userandomlaterlikethecommented"; //RandomNumberGenerator.GetHexString(32);
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internal static string CS = string.Empty ;
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internal static JsonNode Settings = JsonNode.Parse("{}")!;
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internal static readonly CookieOptions HttpOnly;
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internal static readonly CookieOptions Delete;
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// internal static EventStore EventsMarker = new (DateTimeOffset.UtcNow.ToUnixTimeMilliseconds().ToString("X"),DateTimeOffset.UtcNow.ToUnixTimeMilliseconds().ToString("X"));
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internal static readonly CancellationTokenSource CTS = new();
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static Commons()
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{
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Delete = new ()
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{
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Domain = "",
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Path = "/",
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Expires = DateTime.Parse("2023-06-14")
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};
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HttpOnly = new ()
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{
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Domain = "",
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Path = "/",
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HttpOnly = true,
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IsEssential = true
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};
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Console.CancelKeyPress += (sender, e) =>
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{
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e.Cancel = true; // Prevents immediate termination
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CTS.Cancel();
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};
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AppDomain.CurrentDomain.ProcessExit += (sender, e) =>
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{
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CTS.Cancel();
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};
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}
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internal static async Task<int> RunNonQueryAsync(string ConnectionString, string SQL, Action<SqlCommand>? Configure = null, CancellationToken Token = default)
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{
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await using SqlConnection Conn = new(ConnectionString);
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await Conn.OpenAsync(Token);
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await using SqlCommand Cmd = new(SQL, Conn);
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Configure?.Invoke(Cmd);
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return await Cmd.ExecuteNonQueryAsync(Token);
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}
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internal static async Task<SqlDataReader> RunReaderAsync(string ConnectionString, string SQL, Action<SqlCommand>? Configure = null, CancellationToken Token = default)
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{
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SqlConnection Conn = new(ConnectionString);
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await Conn.OpenAsync(Token);
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SqlCommand Cmd = new(SQL, Conn);
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Configure?.Invoke(Cmd);
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return await Cmd.ExecuteReaderAsync(System.Data.CommandBehavior.CloseConnection, Token);
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}
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internal static async Task<object> RunScalarAsync(string ConnectionString, string SQL, Action<SqlCommand>? Configure = null, CancellationToken Token = default)
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{
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await using SqlConnection Conn = new(ConnectionString);
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await Conn.OpenAsync(Token);
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await using SqlCommand Cmd = new(SQL, Conn);
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Configure?.Invoke(Cmd);
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return await Cmd.ExecuteScalarAsync(Token);
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}
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public static async Task RunTransactionAsync(string ConnStr, Func<SqlConnection, SqlTransaction, Task> Logic, CancellationToken Token)
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{
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using SqlConnection Conn = new(ConnStr);
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await Conn.OpenAsync(Token);
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using SqlTransaction Tran = Conn.BeginTransaction();
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try
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{
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await Logic(Conn, Tran);
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await Tran.CommitAsync(Token);
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}
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catch (SqlException)
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{
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await Tran.RollbackAsync(Token);
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throw;
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// if (ex.State != 255) throw; //state = 255 is custom sql error, designed just for this purpose of not rethrowing.
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}
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catch
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{
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throw;
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}
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}
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internal static string GenerateUuidV7(DateTime? BaseTime = null)
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{
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Span<byte> uuidBytes = stackalloc byte[16];
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long time = (BaseTime is null ? DateTimeOffset.UtcNow : new DateTimeOffset((DateTime)BaseTime)).ToUnixTimeMilliseconds();
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RandomNumberGenerator.Fill(uuidBytes[7..]);
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if (BitConverter.IsLittleEndian)
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{
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MemoryMarshal.AsBytes(MemoryMarshal.CreateSpan(ref time, 1))[..6].CopyTo(uuidBytes[..6]);
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uuidBytes[..6].Reverse();
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}
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else
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{
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MemoryMarshal.AsBytes(MemoryMarshal.CreateSpan(ref time, 1))[2..8].CopyTo(uuidBytes[..6]);
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}
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uuidBytes[6] = (byte)((uuidBytes[6] & 0x0F) | 0x70); // Set version to 7
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uuidBytes[8] = (byte)((uuidBytes[8] & 0x3F) | 0x80); // Set variant to 10xx
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return Convert.ToHexString(uuidBytes).ToLower().Insert(8, "-").Insert(13, "-").Insert(18, "-").Insert(23, "-");
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}
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internal static Dictionary<string, JsonElement>? JsonElementToDict(JsonElement Element, string[] Keys)
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{
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Dictionary<string, JsonElement>? Result = new(StringComparer.OrdinalIgnoreCase);
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foreach (string Key in Keys)
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{
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if (!Element.TryGetProperty(Key, out JsonElement Value))
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{
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return null;
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}
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Result[Key] = Value.Clone();
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}
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return Result;
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}
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internal static async Task UpdateCache()
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{
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Console.WriteLine("Updating app cache.");
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Console.Write(" Caching User Accounts... ");
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await using SqlConnection FConn = new(CS);
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await FConn.OpenAsync().ConfigureAwait(false);
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using SqlCommand FComm = new("SELECT * FROM useraccounts",FConn);
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await using (SqlDataReader URead = await FComm.ExecuteReaderAsync(CTS.Token).ConfigureAwait(false))
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{
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UserAccounts.Clear();
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while (await URead.ReadAsync(CTS.Token).ConfigureAwait(false))
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{
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_ = UserAccounts.TryAdd((string)URead["uname"], new User((string)URead["uname"], (string)URead["agentid"], (string)URead["pass"], (byte)URead["level"], (bool)URead["active"]));
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}
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}
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Console.WriteLine("Done.");
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Console.Write(" Caching Unit Kerja... ");
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FComm.CommandText = "SELECT * FROM deployment";
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await using (SqlDataReader SRead = await FComm.ExecuteReaderAsync(CTS.Token).ConfigureAwait(false))
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{
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Deployments = await SRead.ToListAsync<Deployment>(r=>new(
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(short)r["deplid"],
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(string)r["unitkerja"]
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),CTS.Token);
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}
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Console.WriteLine("Done.");
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Console.Write(" Caching Agents Info... ");
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FComm.CommandText = "SELECT * FROM agents";
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await using (SqlDataReader SRead = await FComm.ExecuteReaderAsync(CTS.Token).ConfigureAwait(false))
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{
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Agents = await SRead.ToListAsync<Agent>(r=>new(
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(string)r["agentid"],
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(string)r["name"],
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(string)r["jabatan"],
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(short)r["deplid"],
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(string)r["skangkat"],
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DateOnly.FromDateTime((DateTime)r["tmt"]),
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r["skperubahan"] == DBNull.Value ? null : (string)r["skperubahan"],
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r["tgperubahan"] == DBNull.Value ? null : DateOnly.FromDateTime((DateTime)r["tgperubahan"]),
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r["vision"] == DBNull.Value ? null : (string)r["vision"],
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r["mission"] == DBNull.Value ? null : (string)r["mission"],
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r["photourl"] == DBNull.Value ? null : (string)r["photourl"],
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r["seleksi"] == DBNull.Value ? null : (string)r["seleksi"],
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r["nilaipilih"] == DBNull.Value ? null : DateOnly.FromDateTime((DateTime)r["nilaipilih"]),
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r["eviden"] == DBNull.Value ? null : (string)r["eviden"],
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r["dokumentasi"] == DBNull.Value ? null : (string)r["dokumentasi"]
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),CTS.Token);
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}
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Console.WriteLine("Done.");
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Console.WriteLine("App cache updated.");
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return;
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}
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}
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internal static class Logging
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{
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private static readonly object Lock = new();
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internal static async void WriteLog(Exception ex, string location = "")
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{
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await Task.Run(()=>{
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string Time = $"{DateTime.Now:yyy-MM-dd HH:mm:ss}";
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string msg = $"{Time} [{"Error".PadRight(7)[0..7]}] {ex.Message}{(location.Length > 0 ? $" {location}" : "")}{Environment.NewLine}";
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Console.Write(msg);
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try
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{
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byte[] msgbytes = Encoding.UTF8.GetBytes(msg);
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lock (Lock)
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{
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using FileStream LogWriter = new($"{AppContext.BaseDirectory}/{DateTime.Now:yyyyMMdd}.log", FileMode.Append);
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LogWriter.Write(msgbytes, 0, msgbytes.Length);
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}
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}
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finally
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{
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}
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});
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}
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internal static async void WriteLog(string exm, string location = "")
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{
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await Task.Run(()=>{
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string Time = $"{DateTime.Now:yyy-MM-dd HH:mm:ss}";
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string msg = $"{Time} [{"Info".PadRight(7)[0..7]}] {exm}{(location.Length > 0 ? $" {location}" : "")}{Environment.NewLine}";
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Console.Write(msg);
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try
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{
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byte[] msgbytes = Encoding.UTF8.GetBytes(msg);
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lock (Lock)
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{
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using FileStream LogWriter = new($"{AppContext.BaseDirectory}/{DateTime.Now:yyyyMMdd}.log", FileMode.Append);
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LogWriter.Write(msgbytes, 0, msgbytes.Length);
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}
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}
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finally
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{
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}
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});
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}
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}
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internal static class DataReaderExtensions
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{
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internal static async Task<List<T>> ToListAsync<T>(
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this SqlDataReader reader,
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Func<SqlDataReader, T> map,
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CancellationToken cancellationToken = default)
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{
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List<T> list = [];
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while (await reader.ReadAsync(cancellationToken))
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{
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list.Add(map(reader));
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}
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return list;
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}
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}
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internal static class HttpContextExtensions
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{
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internal static async Task<bool> RequestValidated(this HttpContext Context, int RequiredLevel = 0, string ValidMethod = "GET", bool CheckJson = false)
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{
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if (!ValidMethod.Equals(Context.Request.Method, StringComparison.OrdinalIgnoreCase))
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{
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await Context.WriteJsonResponse(StatusCodes.Status405MethodNotAllowed, "Method Not Allowed.");
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return false;
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}
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if (CheckJson && !Context.Request.HasJsonContentType())
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{
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await Context.WriteJsonResponse(StatusCodes.Status415UnsupportedMediaType, $"Supports only explicitly set application/json content-type, but received {Context.Request.ContentType ?? "request with no content-type set"} instead.");
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return false;
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}
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if (!Auth.IsAuthorized(Context, RequiredLevel))
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{
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await Context.WriteJsonResponse(StatusCodes.Status401Unauthorized, "Unauthorized.");
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return false;
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}
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return true;
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}
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internal static async Task<bool> RequestValidated(this HttpContext Context, string RequiredUserName, string ValidMethod = "GET", bool CheckJson = false)
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{
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if (!ValidMethod.Equals(Context.Request.Method, StringComparison.OrdinalIgnoreCase))
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{
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await Context.WriteJsonResponse(StatusCodes.Status405MethodNotAllowed, "Method Not Allowed.");
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return false;
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}
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if (CheckJson && !Context.Request.HasJsonContentType())
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{
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await Context.WriteJsonResponse(StatusCodes.Status415UnsupportedMediaType, $"Supports only explicitly set application/json content-type, but received {Context.Request.ContentType ?? "request with no content-type set"} instead.");
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return false;
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}
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if (!Auth.IsAuthorized(Context, RequiredUserName))
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{
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await Context.WriteJsonResponse(StatusCodes.Status401Unauthorized, "Unauthorized.");
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return false;
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}
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return true;
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}
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internal static async Task WriteJsonResponse(this HttpContext Context, int Status, string Message, object Data)
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{
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Context.Response.StatusCode = Status;
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await Context.Response.WriteAsJsonAsync(new ApiResponse(Status, Message, Data), SGContext.Default.ApiResponse, cancellationToken: CTS.Token);
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}
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internal static async Task WriteJsonResponse(this HttpContext Context, int Status, string Message = "")
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{
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Context.Response.StatusCode = Status;
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await Context.Response.WriteAsJsonAsync(new SimpleApiResponse(Status, Message), SGContext.Default.SimpleApiResponse, cancellationToken: CTS.Token);
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}
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internal static async Task<Dictionary<string, JsonElement>?> TryGetBodyJsonAsync(this HttpContext Context, string[] Keys, CancellationToken Token)
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{
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using JsonDocument BodyDoc = await JsonDocument.ParseAsync(Context.Request.Body,cancellationToken: Token);
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JsonElement Element = BodyDoc.RootElement;
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Dictionary<string, JsonElement>? Result = new(StringComparer.OrdinalIgnoreCase);
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foreach (string Key in Keys)
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{
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if (!Element.TryGetProperty(Key, out JsonElement Value))
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{
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await Context.WriteJsonResponse(StatusCodes.Status400BadRequest,
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"Bad Request. One or more required properties were not received.");
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return null;
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}
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Result[Key] = Value.Clone();
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}
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return Result;
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}
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}
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public static class Crc32
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{
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static readonly uint[] Table;
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static Crc32()
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{
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Table = new uint[256];
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const uint poly = 0xEDB88320;
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for (uint i = 0; i < Table.Length; i++)
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{
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uint crc = i;
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for (int j = 0; j < 8; j++)
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crc = (crc & 1) != 0 ? (crc >> 1) ^ poly : crc >> 1;
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Table[i] = crc;
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}
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}
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public static uint Compute(byte[] bytes)
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{
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uint crc = 0xFFFFFFFF;
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foreach (byte b in bytes)
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crc = (crc >> 8) ^ Table[(crc ^ b) & 0xFF];
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return ~crc;
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}
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}
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