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backup-manager/BackupManager/Program.cs
2021-01-31 01:26:38 +01:00

320 lines
12 KiB
C#

using MySql.Data.MySqlClient;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.IO.Compression;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Runtime.InteropServices;
using System.Security.Cryptography;
using System.Text;
using System.Xml;
using System.Xml.Serialization;
namespace BackupManager {
public static class Program {
public readonly static Stopwatch sw = new Stopwatch();
private const string CONFIG_NAME = @"FlashiiBackupManager.v1.xml";
public static bool IsWindows
=> RuntimeInformation.IsOSPlatform(OSPlatform.Windows);
public readonly static DateTimeOffset Startup = DateTimeOffset.UtcNow;
public static string Basename
=> $@"{Environment.MachineName} {Startup.Year:0000}-{Startup.Month:00}-{Startup.Day:00} {Startup.Hour:00}{Startup.Minute:00}{Startup.Second:00}";
public static string BackupName
=> $@"{Basename}.zip";
private static Config Config;
private readonly static string ConfigPath = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.Personal),
CONFIG_NAME
);
public static string BackupStore => string.IsNullOrWhiteSpace(Config.FileSystemPathV2)
? Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), @"Backups")
: Config.FileSystemPathV2;
public static bool Headless;
public static string WindowsToUnixPath(this string path) {
return IsWindows ? path.Replace('\\', '/') : path;
}
public static Stream ToXml(this object obj, bool pretty = false) {
MemoryStream ms = new MemoryStream();
XmlSerializer xs = new XmlSerializer(obj.GetType());
using (XmlWriter xw = XmlWriter.Create(ms, new XmlWriterSettings { Indent = pretty }))
xs.Serialize(xw, obj);
ms.Seek(0, SeekOrigin.Begin);
return ms;
}
public static T FromXml<T>(Stream xml) {
if (xml.CanSeek)
xml.Seek(0, SeekOrigin.Begin);
XmlSerializer xs = new XmlSerializer(typeof(T));
return (T)xs.Deserialize(xml);
}
public static void SaveConfig() {
Log(@"Saving configuration...");
using (FileStream fs = new FileStream(ConfigPath, FileMode.Create, FileAccess.Write))
using (Stream cs = Config.ToXml(true))
cs.CopyTo(fs);
}
public static void LoadConfig() {
Log(@"Loading configuration...");
using (FileStream fs = File.OpenRead(ConfigPath))
Config = FromXml<Config>(fs);
}
public static void Main(string[] args) {
Headless = args.Contains(@"-cron") || args.Contains(@"-headless");
Log(@"Flashii Backup Manager");
sw.Start();
if (!File.Exists(ConfigPath)) {
Config = new Config();
SaveConfig();
Error(@"No configuration file exists, created a blank one. Be sure to fill it out properly.");
}
LoadConfig();
if (!Directory.Exists(BackupStore))
Directory.CreateDirectory(BackupStore);
Log(@"Fetching database list...");
MySqlConnectionStringBuilder connStr = new MySqlConnectionStringBuilder {
Server = Config.MySqlHost,
UserID = Config.MySqlUser,
Password = Config.MySqlPass,
CharacterSet = @"utf8mb4",
};
List<string> databases = new List<string>();
string[] exclude = Config.MySqlExcludeDatabases.Split(' ');
using (MySqlConnection conn = new MySqlConnection(connStr.ToString())) {
conn.Open();
using (MySqlCommand comm = new MySqlCommand(@"SHOW DATABASES;", conn))
using (MySqlDataReader read = comm.ExecuteReader()) {
while (read.Read()) {
string database = read.GetString(0);
if (string.IsNullOrEmpty(database) || exclude.Contains(database))
continue;
databases.Add(database);
}
}
}
Log(@"Creating backup archive...");
string archivePath = Path.GetTempFileName();
using (FileStream fs = File.OpenWrite(archivePath))
using (ZipArchive archive = new ZipArchive(fs, ZipArchiveMode.Create)) {
Log(@"Database backup...");
string sqldefaults = Path.GetTempFileName();
using (FileStream sqlConfFs = File.Open(sqldefaults, FileMode.Open, FileAccess.ReadWrite))
using (StreamWriter sw = new StreamWriter(sqlConfFs)) {
sw.WriteLine(@"[client]");
sw.WriteLine($@"user={Config.MySqlUser}");
sw.WriteLine($@"password={Config.MySqlPass}");
sw.WriteLine(@"default-character-set=utf8mb4");
}
foreach (string database in databases)
CreateDbDump(archive, sqldefaults, database);
Log($@"MariaDB dump done.");
File.Delete(sqldefaults);
if (Directory.Exists(Config.MisuzuPath)) {
Log(@"Filesystem backup...");
string mszConfig = Path.Combine(Config.MisuzuPath, @"config/config.ini");
if (!File.Exists(mszConfig))
Error(@"Could not find Misuzu config.");
string mszStore = Path.Combine(Config.MisuzuPath, @"store");
if (!Directory.Exists(mszStore))
Error(@"Could not find Misuzu storage directory.");
CreateMisuzuDataBackup(archive, mszConfig, mszStore);
}
}
string targetPath = Path.Combine(BackupStore, BackupName);
File.Move(archivePath, targetPath);
Log($@"Moved backup archive to {targetPath}");
SaveConfig();
sw.Stop();
Log($@"Done! Took {sw.Elapsed}.", true);
#if DEBUG
Console.ReadLine();
#endif
}
public static void Log(object line, bool forceSatori = false) {
if (!Headless) {
if (sw?.IsRunning == true) {
ConsoleColor fg = Console.ForegroundColor;
Console.ForegroundColor = ConsoleColor.Yellow;
Console.Write(sw.ElapsedMilliseconds.ToString().PadRight(10));
Console.ForegroundColor = fg;
}
Console.WriteLine(line);
}
if (forceSatori || (!Headless && !(Config?.SatoriErrorsOnly ?? true)))
SatoriBroadcast(line.ToString());
}
public static void Error(object line, int exit = 0x00DEAD00) {
if (!Headless) {
Console.ForegroundColor = ConsoleColor.Red;
Log(line);
Console.ResetColor();
}
SatoriBroadcast(line.ToString(), true);
#if DEBUG
Console.ReadLine();
#endif
Environment.Exit(exit);
}
public static void CreateMisuzuDataBackup(ZipArchive archive, string configPath, string storePath) {
Log(@"Storing non-volatile Misuzu data...");
archive.CreateEntryFromFile(configPath, @"misuzu/config/config.ini", CompressionLevel.Optimal);
string[] storeFiles = Directory.GetFiles(storePath, @"*", SearchOption.AllDirectories);
foreach (string file in storeFiles)
archive.CreateEntryFromFile(
file,
@"misuzu/store/" + file.Replace(storePath, string.Empty).WindowsToUnixPath().Trim('/'),
CompressionLevel.Optimal
);
}
public static void CreateDbDump(ZipArchive archive, string defaults, string database) {
Log($@"Dumping {database}...");
string sqldump = Path.GetTempFileName();
StringBuilder mysqldumpArgs = new StringBuilder();
mysqldumpArgs.AppendFormat(@"--defaults-file={0} ", defaults);
mysqldumpArgs.Append(@"--single-transaction ");
mysqldumpArgs.Append(@"--tz-utc --triggers ");
mysqldumpArgs.Append(@"--routines --hex-blob ");
mysqldumpArgs.Append(@"--add-locks --order-by-primary ");
mysqldumpArgs.Append(@"--skip-lock-tables "); // might regret this, we'll find out someday
mysqldumpArgs.AppendFormat(@"--result-file={0} ", sqldump);
mysqldumpArgs.Append(@"-Q -q -B "); // lock, quote names, quick, database list
mysqldumpArgs.Append(database);
#if DEBUG
Log($@"mysqldump args: {mysqldumpArgs}");
#endif
Process p = Process.Start(new ProcessStartInfo {
FileName = IsWindows ? Config.MySqlDumpPathWindows : Config.MySqlDumpPath,
Arguments = mysqldumpArgs.ToString(),
UseShellExecute = false,
CreateNoWindow = true,
});
p.WaitForExit();
archive.CreateEntryFromFile(sqldump, $@"mariadb/{database}.sql", CompressionLevel.Optimal);
File.Delete(sqldump);
}
public static void SatoriBroadcast(string text, bool error = false) {
if (string.IsNullOrEmpty(text)
|| Config == null
|| string.IsNullOrWhiteSpace(Config.SatoriHost)
|| string.IsNullOrWhiteSpace(Config.SatoriSecret)
|| Config.SatoriPort < 1)
return;
IPAddress ip = null;
try {
ip = IPAddress.Parse(Config.SatoriHost);
} catch {
try {
// forcing IPv4 here, it seems to explode with IPv6 and i don't really want to figure out why
ip = Dns.GetHostAddresses(Config.SatoriHost).FirstOrDefault(x => x.AddressFamily == AddressFamily.InterNetwork);
} catch {
ip = null;
}
}
if (ip == null)
return;
EndPoint endPoint = new IPEndPoint(ip, Config.SatoriPort);
StringBuilder textBuilder = new StringBuilder();
textBuilder.Append(@"[b]Backup System[/b]: ");
if (error)
textBuilder.Append(@"[color=red]");
textBuilder.Append(text);
if (error)
textBuilder.Append(@"[/color]");
text = textBuilder.ToString();
StringBuilder messageBuilder = new StringBuilder();
using (HMACSHA256 hmac = new HMACSHA256(Encoding.UTF8.GetBytes(Config.SatoriSecret))) {
byte[] hash = hmac.ComputeHash(Encoding.UTF8.GetBytes(text));
foreach (byte b in hash)
messageBuilder.AppendFormat(@"{0:x2}", b);
}
messageBuilder.Append(text);
string message = messageBuilder.ToString();
byte[] messageBytes = new byte[Encoding.UTF8.GetByteCount(message) + 2];
messageBytes[0] = messageBytes[messageBytes.Length - 1] = 0x0F;
Encoding.UTF8.GetBytes(message).CopyTo(messageBytes, 1);
using (Socket sock = new Socket(endPoint.AddressFamily, SocketType.Stream, ProtocolType.Tcp)) {
sock.NoDelay = sock.Blocking = true;
sock.Connect(endPoint);
sock.Send(messageBytes);
}
}
}
}