IW4M-Admin/SharedLibraryCore/Utilities.cs

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#if DEBUG
using Microsoft.EntityFrameworkCore.Query;
using Microsoft.EntityFrameworkCore.Query.Internal;
using Microsoft.EntityFrameworkCore.Storage;
#endif
using SharedLibraryCore.Database.Models;
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using SharedLibraryCore.Helpers;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Globalization;
using System.IO;
using System.Linq;
using System.Net;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using static SharedLibraryCore.Database.Models.EFClient;
using static SharedLibraryCore.Database.Models.EFPenalty;
using static SharedLibraryCore.Server;
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namespace SharedLibraryCore
{
public static class Utilities
{
#if DEBUG == true
public static string OperatingDirectory => @"X:\IW4MAdmin\Application\bin\Debug\netcoreapp2.2\";
//public static string OperatingDirectory => $"{Path.GetDirectoryName(Assembly.GetEntryAssembly().Location)}{Path.DirectorySeparatorChar}";
#else
public static string OperatingDirectory => $"{Path.GetDirectoryName(Assembly.GetEntryAssembly().Location)}{Path.DirectorySeparatorChar}..{Path.DirectorySeparatorChar}";
#endif
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public static Encoding EncodingType;
public static Localization.Layout CurrentLocalization = new Localization.Layout(new Dictionary<string, string>());
public static TimeSpan DefaultCommandTimeout = new TimeSpan(0, 0, 10);
public static EFClient IW4MAdminClient(Server server = null)
{
return new EFClient()
{
ClientId = 1,
State = EFClient.ClientState.Connected,
Level = EFClient.Permission.Console,
CurrentServer = server,
CurrentAlias = new EFAlias()
{
Name = "IW4MAdmin"
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},
AdministeredPenalties = new List<EFPenalty>()
};
}
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public static string HttpRequest(string location, string header, string headerValue)
{
using (var RequestClient = new System.Net.Http.HttpClient())
{
RequestClient.DefaultRequestHeaders.Add(header, headerValue);
string response = RequestClient.GetStringAsync(location).Result;
return response;
}
}
//Get string with specified number of spaces -- really only for visual output
public static String GetSpaces(int Num)
{
String SpaceString = String.Empty;
while (Num > 0)
{
SpaceString += ' ';
Num--;
}
return SpaceString;
}
//Remove words from a space delimited string
public static String RemoveWords(this string str, int num)
{
if (str == null || str.Length == 0)
{
return "";
}
String newStr = String.Empty;
String[] tmp = str.Split(' ');
for (int i = 0; i < tmp.Length; i++)
{
if (i >= num)
{
newStr += tmp[i] + ' ';
}
}
return newStr;
}
/// <summary>
/// helper method to get the information about an exception and inner exceptions
/// </summary>
/// <param name="ex"></param>
/// <returns></returns>
public static string GetExceptionInfo(this Exception ex)
{
var sb = new StringBuilder();
int depth = 0;
while (ex != null)
{
sb.AppendLine($"Exception[{depth}] Name: {ex.GetType().FullName}");
sb.AppendLine($"Exception[{depth}] Message: {ex.Message}");
sb.AppendLine($"Exception[{depth}] Call Stack: {ex.StackTrace}");
sb.AppendLine($"Exception[{depth}] Source: {ex.Source}");
depth++;
ex = ex.InnerException;
}
return sb.ToString();
}
public static EFClient.Permission MatchPermission(String str)
{
String lookingFor = str.ToLower();
for (EFClient.Permission Perm = EFClient.Permission.User; Perm < EFClient.Permission.Console; Perm++)
{
if (lookingFor.Contains(Perm.ToString().ToLower())
|| lookingFor.Contains(CurrentLocalization.LocalizationIndex[$"GLOBAL_PERMISSION_{Perm.ToString().ToUpper()}"].ToLower()))
{
return Perm;
}
}
return EFClient.Permission.Banned;
}
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/// <summary>
/// Remove all IW Engine color codes
/// </summary>
/// <param name="str">String containing color codes</param>
/// <returns></returns>
public static string StripColors(this string str)
{
if (str == null)
{
return "";
}
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str = Regex.Replace(str, @"(\^+((?![a-z]|[A-Z]).){0,1})+", "");
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return str;
}
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/// <summary>
/// returns a "fixed" string that prevents message truncation in IW4 (and probably other Q3 clients)
/// </summary>
/// <param name="str"></param>
/// <returns></returns>
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public static string FixIW4ForwardSlash(this string str) => str.Replace("/", " /");
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private static readonly IList<string> _zmGameTypes = new[] { "zclassic", "zstandard", "zcleansed", "zgrief" };
/// <summary>
/// indicates if the given server is running a zombie game mode
/// </summary>
/// <param name="server"></param>
/// <returns></returns>
public static bool IsZombieServer(this Server server) => server.GameName == Game.T6 && _zmGameTypes.Contains(server.Gametype.ToLower());
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/// <summary>
/// Get the IW Engine color code corresponding to an admin level
/// </summary>
/// <param name="level">Specified player level</param>
/// <returns></returns>
public static String ConvertLevelToColor(EFClient.Permission level, string localizedLevel)
{
char colorCode = '6';
// todo: maybe make this game independant?
switch (level)
{
case EFClient.Permission.Banned:
colorCode = '1';
break;
case EFClient.Permission.Flagged:
colorCode = '9';
break;
case EFClient.Permission.Owner:
colorCode = '5';
break;
case EFClient.Permission.User:
colorCode = '2';
break;
case EFClient.Permission.Trusted:
colorCode = '3';
break;
default:
break;
}
return $"^{colorCode}{localizedLevel ?? level.ToString()}";
}
public static string ToLocalizedLevelName(this EFClient.Permission perm)
{
return CurrentLocalization.LocalizationIndex[$"GLOBAL_PERMISSION_{perm.ToString().ToUpper()}"];
}
public async static Task<string> ProcessMessageToken(this Server server, IList<Helpers.MessageToken> tokens, String str)
{
MatchCollection RegexMatches = Regex.Matches(str, @"\{\{[A-Z]+\}\}", RegexOptions.IgnoreCase);
foreach (Match M in RegexMatches)
{
String Match = M.Value;
String Identifier = M.Value.Substring(2, M.Length - 4);
var found = tokens.FirstOrDefault(t => t.Name.ToLower() == Identifier.ToLower());
if (found != null)
{
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str = str.Replace(Match, await found.ProcessAsync(server));
}
}
return str;
}
public static bool IsBroadcastCommand(this string str)
{
return str[0] == '@';
}
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/// <summary>
/// Get the full gametype name
/// </summary>
/// <param name="input">Shorthand gametype reported from server</param>
/// <returns></returns>
public static string GetLocalizedGametype(String input)
{
switch (input)
{
case "dm":
return "Deathmatch";
case "war":
return "Team Deathmatch";
case "koth":
return "Headquarters";
case "ctf":
return "Capture The Flag";
case "dd":
return "Demolition";
case "dom":
return "Domination";
case "sab":
return "Sabotage";
case "sd":
return "Search & Destroy";
case "vip":
return "Very Important Person";
case "gtnw":
return "Global Thermonuclear War";
case "oitc":
return "One In The Chamber";
case "arena":
return "Arena";
case "dzone":
return "Drop Zone";
case "gg":
return "Gun Game";
case "snipe":
return "Sniping";
case "ss":
return "Sharp Shooter";
case "m40a3":
return "M40A3";
case "fo":
return "Face Off";
case "dmc":
return "Deathmatch Classic";
case "killcon":
return "Kill Confirmed";
case "oneflag":
return "One Flag CTF";
default:
return input;
}
}
public static long ConvertGuidToLong(this string str, long? fallback = null)
{
str = str.Substring(0, Math.Min(str.Length, 19));
var bot = Regex.Match(str, @"bot[0-9]+").Value;
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if (string.IsNullOrWhiteSpace(str) && fallback.HasValue)
{
return fallback.Value;
}
// this is a special case for Plutonium T6 and CoD4x
if (long.TryParse(str, NumberStyles.Integer, CultureInfo.InvariantCulture, out long id))
{
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if (id < 0)
{
id = (uint)id;
}
}
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else if (long.TryParse(str.Length > 16 ? str.Substring(0, 16) : str, NumberStyles.HexNumber, CultureInfo.InvariantCulture, out id))
{
}
else if (!string.IsNullOrEmpty(bot))
{
id = -1;
#if DEBUG
id = str.Sum(_c => _c);
#endif
}
if (id == 0)
{
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throw new FormatException($"Could not parse client GUID - {str}");
}
return id;
}
public static int? ConvertToIP(this string str)
{
bool success = IPAddress.TryParse(str, out IPAddress ip);
return success && ip.GetAddressBytes().Count(_byte => _byte == 0) != 4 ?
(int?)BitConverter.ToInt32(ip.GetAddressBytes(), 0) :
null;
}
public static string ConvertIPtoString(this int? ip)
{
return !ip.HasValue ? "" : new IPAddress(BitConverter.GetBytes(ip.Value)).ToString();
}
public static string GetTimePassed(DateTime start)
{
return GetTimePassed(start, true);
}
public static string GetTimePassed(DateTime start, bool includeAgo)
{
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TimeSpan Elapsed = DateTime.UtcNow - start;
string ago = includeAgo ? $" {CurrentLocalization.LocalizationIndex["WEBFRONT_PENALTY_TEMPLATE_AGO"]}" : "";
if (Elapsed.TotalSeconds < 30)
{
return CurrentLocalization.LocalizationIndex["GLOBAL_TIME_JUSTNOW"] + ago;
}
if (Elapsed.TotalMinutes < 120)
{
if (Elapsed.TotalMinutes < 1.5)
{
return $"1 {CurrentLocalization.LocalizationIndex["GLOBAL_TIME_MINUTES"]}{ago}";
}
return Math.Round(Elapsed.TotalMinutes, 0) + $" {CurrentLocalization.LocalizationIndex["GLOBAL_TIME_MINUTES"]}{ago}";
}
if (Elapsed.TotalHours <= 24)
{
if (Elapsed.TotalHours < 1.5)
{
return $"1 {CurrentLocalization.LocalizationIndex["GLOBAL_TIME_HOURS"]}{ago}";
}
return Math.Round(Elapsed.TotalHours, 0) + $" { CurrentLocalization.LocalizationIndex["GLOBAL_TIME_HOURS"]}{ago}";
}
if (Elapsed.TotalDays <= 90)
{
if (Elapsed.TotalDays < 1.5)
{
return $"1 {CurrentLocalization.LocalizationIndex["GLOBAL_TIME_DAYS"]}{ago}";
}
return Math.Round(Elapsed.TotalDays, 0) + $" {CurrentLocalization.LocalizationIndex["GLOBAL_TIME_DAYS"]}{ago}";
}
if (Elapsed.TotalDays <= 365)
{
return $"{Math.Round(Elapsed.TotalDays / 7)} {CurrentLocalization.LocalizationIndex["GLOBAL_TIME_WEEKS"]}{ago}";
}
else
{
return $"{Math.Round(Elapsed.TotalDays / 30, 0)} {CurrentLocalization.LocalizationIndex["GLOBAL_TIME_MONTHS"]}{ago}";
}
}
public static Game GetGame(string gameName)
{
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if (string.IsNullOrEmpty(gameName))
{
return Game.UKN;
}
if (gameName.Contains("IW4"))
{
return Game.IW4;
}
if (gameName.Contains("CoD4"))
{
return Game.IW3;
}
if (gameName.Contains("COD_WaW"))
{
return Game.T4;
}
if (gameName.Contains("T5"))
{
return Game.T5;
}
if (gameName.Contains("IW5"))
{
return Game.IW5;
}
if (gameName.Contains("COD_T6_S"))
{
return Game.T6;
}
return Game.UKN;
}
public static string EscapeMarkdown(this string markdownString)
{
return markdownString.Replace("<", "\\<").Replace(">", "\\>").Replace("|", "\\|");
}
public static TimeSpan ParseTimespan(this string input)
{
var expressionMatch = Regex.Match(input, @"([0-9]+)(\w+)");
if (!expressionMatch.Success) // fallback to default tempban length of 1 hour
{
return new TimeSpan(1, 0, 0);
}
char lengthDenote = expressionMatch.Groups[2].ToString()[0];
int length = Int32.Parse(expressionMatch.Groups[1].ToString());
var loc = CurrentLocalization.LocalizationIndex;
if (lengthDenote == char.ToLower(loc["GLOBAL_TIME_MINUTES"][0]))
{
return new TimeSpan(0, length, 0);
}
if (lengthDenote == char.ToLower(loc["GLOBAL_TIME_HOURS"][0]))
{
return new TimeSpan(length, 0, 0);
}
if (lengthDenote == char.ToLower(loc["GLOBAL_TIME_DAYS"][0]))
{
return new TimeSpan(length, 0, 0, 0);
}
if (lengthDenote == char.ToLower(loc["GLOBAL_TIME_WEEKS"][0]))
{
return new TimeSpan(length * 7, 0, 0, 0);
}
if (lengthDenote == char.ToLower(loc["GLOBAL_TIME_YEARS"][0]))
{
return new TimeSpan(length * 365, 0, 0, 0);
}
return new TimeSpan(1, 0, 0);
}
public static string TimeSpanText(this TimeSpan span)
{
var loc = CurrentLocalization.LocalizationIndex;
if (span.TotalMinutes < 60)
{
return $"{span.Minutes} {loc["GLOBAL_TIME_MINUTES"]}";
}
else if (span.Hours >= 1 && span.TotalHours < 24)
{
return $"{span.Hours} {loc["GLOBAL_TIME_HOURS"]}";
}
else if (span.TotalDays >= 1 && span.TotalDays < 7)
{
return $"{span.Days} {loc["GLOBAL_TIME_DAYS"]}";
}
else if (span.TotalDays >= 7 && span.TotalDays < 90)
{
return $"{Math.Round(span.Days / 7.0, 0)} {loc["GLOBAL_TIME_WEEKS"]}";
}
else if (span.TotalDays >= 90 && span.TotalDays < 365)
{
return $"{Math.Round(span.Days / 30.0, 0)} {loc["GLOBAL_TIME_MONTHS"]}";
}
else if (span.TotalDays >= 365 && span.TotalDays < 36500)
{
return $"{Math.Round(span.Days / 365.0, 0)} {loc["GLOBAL_TIME_YEARS"]}";
}
else if (span.TotalDays >= 36500)
{
return loc["GLOBAL_TIME_FOREVER"];
}
return "unknown";
}
/// <summary>
/// returns a list of penalty types that should be shown across all profiles
/// </summary>
/// <returns></returns>
public static PenaltyType[] LinkedPenaltyTypes()
{
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return new[]
{
PenaltyType.Ban,
PenaltyType.Unban,
PenaltyType.TempBan,
PenaltyType.Flag,
PenaltyType.Unflag,
};
}
/// <summary>
/// Helper extension that determines if a user is a privileged client
/// </summary>
/// <param name="p"></param>
/// <returns></returns>
public static bool IsPrivileged(this EFClient p)
{
return p.Level > EFClient.Permission.Flagged;
}
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/// <summary>
/// prompt user to answer a yes/no question
/// </summary>
/// <param name="question">question to prompt the user with</param>
/// <param name="description">description of the question's value</param>
/// <param name="defaultValue">default value to set if no input is entered</param>
/// <returns></returns>
public static bool PromptBool(string question, string description = null, bool defaultValue = true)
{
Console.Write($"{question}?{(string.IsNullOrEmpty(description) ? " " : $" ({description}) ")}[y/n]: ");
char response = Console.ReadLine().ToLower().FirstOrDefault();
return response != 0 ? response == 'y' : defaultValue;
}
/// <summary>
/// prompt user to make a selection
/// </summary>
/// <typeparam name="T">type of selection</typeparam>
/// <param name="question">question to prompt the user with</param>
/// <param name="defaultValue">default value to set if no input is entered</param>
/// <param name="description">description of the question's value</param>
/// <param name="selections">array of possible selections (should be able to convert to string)</param>
/// <returns></returns>
public static Tuple<int, T> PromptSelection<T>(string question, T defaultValue, string description = null, params T[] selections)
{
bool hasDefault = false;
if (defaultValue != null)
{
hasDefault = true;
selections = (new T[] { defaultValue }).Union(selections).ToArray();
}
Console.WriteLine($"{question}{(string.IsNullOrEmpty(description) ? "" : $" [{ description}:]")}");
Console.WriteLine(new string('=', 52));
for (int index = 0; index < selections.Length; index++)
{
Console.WriteLine($"{(hasDefault ? index : index + 1)}] {selections[index]}");
}
Console.WriteLine(new string('=', 52));
int selectionIndex = PromptInt(CurrentLocalization.LocalizationIndex["SETUP_PROMPT_MAKE_SELECTION"], null, hasDefault ? 0 : 1, selections.Length, hasDefault ? 0 : (int?)null);
if (!hasDefault)
{
selectionIndex--;
}
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T selection = selections[selectionIndex];
return Tuple.Create(selectionIndex, selection);
}
/// <summary>
/// prompt user to enter a number
/// </summary>
/// <param name="question">question to prompt with</param>
/// <param name="maxValue">maximum value to allow</param>
/// <param name="minValue">minimum value to allow</param>
/// <param name="defaultValue">default value to set the return value to</param>
/// <param name="description">a description of the question's value</param>
/// <returns>integer from user's input</returns>
public static int PromptInt(this string question, string description = null, int minValue = 0, int maxValue = int.MaxValue, int? defaultValue = null)
{
Console.Write($"{question}{(string.IsNullOrEmpty(description) ? "" : $" ({description})")}{(defaultValue == null ? "" : $" [{CurrentLocalization.LocalizationIndex["SETUP_PROMPT_DEFAULT"]} {defaultValue.Value.ToString()}]")}: ");
int response;
string inputOrDefault()
{
string input = Console.ReadLine();
return string.IsNullOrEmpty(input) && defaultValue != null ? defaultValue.ToString() : input;
}
while (!int.TryParse(inputOrDefault(), out response) ||
response < minValue ||
response > maxValue)
{
string range = "";
if (minValue != 0 || maxValue != int.MaxValue)
{
range = $" [{minValue}-{maxValue}]";
}
Console.Write($"{CurrentLocalization.LocalizationIndex["SETUP_PROMPT_INT"]}{range}: ");
}
return response;
}
/// <summary>
/// prompt use to enter a string response
/// </summary>
/// <param name="question">question to prompt with</param>
/// <param name="description">description of the question's value</param>
/// <param name="defaultValue">default value to set the return value to</param>
/// <returns></returns>
public static string PromptString(string question, string description = null, string defaultValue = null)
{
string inputOrDefault()
{
string input = Console.ReadLine();
return string.IsNullOrEmpty(input) && defaultValue != null ? defaultValue.ToString() : input;
}
string response;
do
{
Console.Write($"{question}{(string.IsNullOrEmpty(description) ? "" : $" ({description})")}{(defaultValue == null ? "" : $" [{CurrentLocalization.LocalizationIndex["SETUP_PROMPT_DEFAULT"]} {defaultValue}]")}: ");
response = inputOrDefault();
} while (string.IsNullOrWhiteSpace(response));
return response;
}
public static Dictionary<string, string> DictionaryFromKeyValue(this string eventLine)
{
string[] values = eventLine.Substring(1).Split('\\');
Dictionary<string, string> dict = null;
if (values.Length % 2 == 0 && values.Length > 1)
{
dict = new Dictionary<string, string>();
for (int i = 0; i < values.Length; i += 2)
{
dict.Add(values[i], values[i + 1]);
}
}
return dict;
}
/* https://loune.net/2017/06/running-shell-bash-commands-in-net-core/ */
public static string GetCommandLine(int pId)
{
var cmdProcess = new Process()
{
StartInfo = new ProcessStartInfo()
{
FileName = "cmd.exe",
Arguments = $"/c wmic process where processid={pId} get CommandLine",
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true,
}
};
cmdProcess.Start();
cmdProcess.WaitForExit();
string[] cmdLine = cmdProcess.StandardOutput.ReadToEnd().Split("\r\n", StringSplitOptions.RemoveEmptyEntries);
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cmdProcess.Dispose();
return cmdLine.Length > 1 ? cmdLine[1] : cmdLine[0];
}
/// <summary>
/// indicates if the given log path is a remote (http) uri
/// </summary>
/// <param name="log"></param>
/// <returns></returns>
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public static bool IsRemoteLog(this string log)
{
return (log ?? "").StartsWith("http");
}
public static string ToBase64UrlSafeString(this string src)
{
return Convert.ToBase64String(src.Select(c => Convert.ToByte(c)).ToArray()).Replace('+', '-').Replace('/', '_');
}
public static Task<Dvar<T>> GetDvarAsync<T>(this Server server, string dvarName)
{
return server.RconParser.GetDvarAsync<T>(server.RemoteConnection, dvarName);
}
public static Task SetDvarAsync(this Server server, string dvarName, object dvarValue)
{
return server.RconParser.SetDvarAsync(server.RemoteConnection, dvarName, dvarValue);
}
public static async Task<string[]> ExecuteCommandAsync(this Server server, string commandName)
{
return await server.RconParser.ExecuteCommandAsync(server.RemoteConnection, commandName);
}
public static Task<List<EFClient>> GetStatusAsync(this Server server)
{
return server.RconParser.GetStatusAsync(server.RemoteConnection);
}
public static async Task<Dictionary<string, string>> GetInfoAsync(this Server server)
{
string[] response = new string[0];
for (int i = 0; i < 4; i++)
{
response = await server.RemoteConnection.SendQueryAsync(RCon.StaticHelpers.QueryType.GET_INFO);
if (response.Length == 2)
{
break;
}
await Task.Delay(RCon.StaticHelpers.FloodProtectionInterval);
}
return response.FirstOrDefault(r => r[0] == '\\')?.DictionaryFromKeyValue();
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}
public static double GetVersionAsDouble()
{
string version = Assembly.GetCallingAssembly().GetName().Version.ToString();
version = version.Replace(".", "");
return double.Parse(version) / 1000.0;
}
public static string GetVersionAsString()
{
return Assembly.GetCallingAssembly().GetName().Version.ToString();
}
public static string FormatExt(this string input, params object[] values)
{
var matches = Regex.Matches(Regex.Unescape(input), @"{{\w+}}");
string output = input;
int index = 0;
foreach (Match match in matches)
{
output = output.Replace(match.Value.ToString(), $"{{{index.ToString()}}}");
index++;
}
try
{
return string.Format(output, values);
}
catch { return input; }
}
/// <summary>
/// https://stackoverflow.com/questions/8113546/how-to-determine-whether-an-ip-address-in-private/39120248
/// An extension method to determine if an IP address is internal, as specified in RFC1918
/// </summary>
/// <param name="toTest">The IP address that will be tested</param>
/// <returns>Returns true if the IP is internal, false if it is external</returns>
public static bool IsInternal(this IPAddress toTest)
{
if (toTest.ToString().StartsWith("127.0.0"))
{
return true;
}
byte[] bytes = toTest.GetAddressBytes();
switch (bytes[0])
{
case 10:
return true;
case 172:
return bytes[1] < 32 && bytes[1] >= 16;
case 192:
return bytes[1] == 168;
default:
return false;
}
}
/// <summary>
/// retrieves the external IP address of the current running machine
/// </summary>
/// <returns></returns>
public static async Task<string> GetExternalIP()
{
try
{
using (var wc = new WebClient())
{
return await wc.DownloadStringTaskAsync("https://api.ipify.org");
}
}
catch
{
return null;
}
}
/// <summary>
/// Determines if the given message is a quick message
/// </summary>
/// <param name="message"></param>
/// <returns>true if the </returns>
public static bool IsQuickMessage(this string message)
{
return Regex.IsMatch(message, @"^\u0014(?:[A-Z]|_)+$");
}
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public static Vector3 FixIW4Angles(this Vector3 vector)
{
float X = vector.X >= 0 ? vector.X : 360.0f + vector.X;
float Y = vector.Y >= 0 ? vector.Y : 360.0f + vector.Y;
float Z = vector.Z >= 0 ? vector.Z : 360.0f + vector.Z;
return new Vector3(Y, X, Z);
}
public static float ToRadians(this float value) => (float)Math.PI * value / 180.0f;
public static float ToDegrees(this float value) => value * 180.0f / (float)Math.PI;
public static double[] AngleStuff(Vector3 a, Vector3 b)
{
double deltaX = 180.0 - Math.Abs(Math.Abs(a.X - b.X) - 180.0);
double deltaY = 180.0 - Math.Abs(Math.Abs(a.Y - b.Y) - 180.0);
return new[] { deltaX, deltaY };
}
public static bool ShouldHideLevel(this Permission perm) => perm == Permission.Flagged;
#if DEBUG == true
private static readonly TypeInfo QueryCompilerTypeInfo = typeof(QueryCompiler).GetTypeInfo();
private static readonly FieldInfo QueryCompilerField = typeof(EntityQueryProvider).GetTypeInfo().DeclaredFields.First(x => x.Name == "_queryCompiler");
private static readonly FieldInfo QueryModelGeneratorField = QueryCompilerTypeInfo.DeclaredFields.First(x => x.Name == "_queryModelGenerator");
private static readonly FieldInfo DataBaseField = QueryCompilerTypeInfo.DeclaredFields.Single(x => x.Name == "_database");
private static readonly PropertyInfo DatabaseDependenciesField = typeof(Microsoft.EntityFrameworkCore.Storage.Database).GetTypeInfo().DeclaredProperties.Single(x => x.Name == "Dependencies");
public static string ToSql<TEntity>(this IQueryable<TEntity> query) where TEntity : class
{
var queryCompiler = (QueryCompiler)QueryCompilerField.GetValue(query.Provider);
var modelGenerator = (QueryModelGenerator)QueryModelGeneratorField.GetValue(queryCompiler);
var queryModel = modelGenerator.ParseQuery(query.Expression);
var database = (IDatabase)DataBaseField.GetValue(queryCompiler);
var databaseDependencies = (DatabaseDependencies)DatabaseDependenciesField.GetValue(database);
var queryCompilationContext = databaseDependencies.QueryCompilationContextFactory.Create(false);
var modelVisitor = (RelationalQueryModelVisitor)queryCompilationContext.CreateQueryModelVisitor();
modelVisitor.CreateQueryExecutor<TEntity>(queryModel);
var sql = modelVisitor.Queries.First().ToString();
return sql;
}
#endif
}
}