EasyExtensions.Drawing 0.1.84

EasyExtensions

Ready-to-use .NET Standard library for convenient development.

Purposes

• Easy to use - just add a few lines of code to start working with the library.
• Flexible - use the library as a base for your project.
• Fast - add new features and commands in a few minutes.
• Modern - use the latest technologies and approaches.
• Secure - protect your data and users.
• Open Source - contribute to the project and make it better.
• Free - use the library for free.
• Cross-platform - run the library on any platform.
• Lightweight - use only necessary features.
• Documented - read the documentation and start using the library.

Getting Started

• Start by importing the library into your project

# Basic package with BCL extensions
dotnet add package EasyExtensions

# AspNetCore package with additional features
dotnet add package EasyExtensions.AspNetCore
dotnet add package EasyExtensions.AspNetCore.Authorization
dotnet add package EasyExtensions.AspNetCore.Sentry

# Drawing package with native SixLabors.ImageSharp support
# This package is .NET Standard 2.1 and not using System.Drawing, so it can be used in any project.
dotnet add package EasyExtensions.Drawing

# Entity Framework Core package with absractions and ORM features
dotnet add package EasyExtensions.EntityFrameworkCore
dotnet add package EasyExtensions.EntityFrameworkCore.Npgsql

# Quartz package - scheduler integration and convenient reflection-based job registration
dotnet add package EasyExtensions.Quartz

# WebDav package - WebDav client with NextCloud support
dotnet add package EasyExtensions.WebDav

# Windows package - Windows-specific features with WinAPI
dotnet add package EasyExtensions.Windows

Contents

• Extensions

  • Byte Array Extensions
  • Claims Principal Extensions
  • DateTime Extensions
  • Enumerable Extensions
  • Exception Extensions
  • HttpRequest Extensions
  • Math Extensions
  • Object Extensions
  • ServiceCollection Extensions
  • Stream Extensions
  • String Extensions
  • IP Address Extensions

• Helpers

  • DateTime Helpers
  • Reflection Helpers
  • String Helpers
  • IP Address Helpers

• Quartz Extensions

  • ServiceCollection Extensions
  • Attributes
    • JobTriggerAttribute

• Authorization Extensions

  • ServiceCollection Extensions

• Drawing Extensions

  • Image Extensions

• Entity Framework Extensions

  • ServiceCollection Extensions
  • Host Extensions

• Sentry Extensions

  • WebHostBuilder Extensions

Extensions

Byte Array Extensions

/// <summary>
/// Calculate SHA512 hash of byte array.
/// </summary>
/// <param name="bytes"> Data to calculate hash. </param>
/// <returns> SHA512 hash of byte array. </returns>
string SHA512(this byte[] bytes);

Claims Principal Extensions

/// <summary>
/// Get user id.
/// </summary>
/// <param name="user"> User instance. </param>
/// <returns> User id. </returns>
/// <exception cref="KeyNotFoundException"> Throws when claim not found. </exception>
int GetId(this ClaimsPrincipal? user);

---

/// <summary>
/// Try get user id.
/// </summary>
/// <param name="user"> User instance. </param>
/// <returns> User id, or 0 if not found. </returns>
int TryGetId(this ClaimsPrincipal? user);

---

/// <summary>
/// Get user roles.
/// </summary>
/// <param name="user"> User instance. </param>
/// <param name="rolePrefix"> Role prefix, for example: "user-group-" prefix returns group like "user-group-admins" </param>
/// <returns> User roles. </returns>
IEnumerable<string> GetRoles(this ClaimsPrincipal user, string rolePrefix = "");

DateTime Extensions

/// <summary>
/// Remove microseconds from <see cref="DateTime"/>.
/// </summary>
/// <returns> DateTime without microseconds. </returns>
DateTime DropMicroseconds(this DateTime value);

---

/// <summary>
/// Remove microseconds from <see cref="DateTime"/>.
/// </summary>
/// <returns> DateTime without microseconds. </returns>
DateTimeOffset DropMicroseconds(this DateTimeOffset value);

---

/// <summary>
/// Create new datetime with same values but <see cref="DateTimeKind.Utc"/>.
/// </summary>
/// <returns> New datetime. </returns>
DateTime ToUniversalTimeWithoutOffset(this DateTime value);

---

/// <summary>
/// Convert datetime value to nullable datetime type.
/// </summary>
/// <returns> Wrapped datetime value. </returns>
DateTime? ToNullable(this DateTime value);

Enumerable Extensions

/// <summary>
/// Shuffles the elements of the <see cref="IEnumerable{T}"/>.
/// </summary>
/// <typeparam name="T">The type of the elements in the <see cref="IEnumerable{T}"/>.</typeparam>
/// <param name="source">The <see cref="IEnumerable{T}"/> to shuffle.</param>
/// <returns>A shuffled <see cref="IEnumerable{T}"/>.</returns>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="source"/> is null.</exception>
IEnumerable<T> Shuffle<T>(this IEnumerable<T> source);

---

/// <summary>
/// Gets a random element from the <see cref="IEnumerable{T}"/>.
/// </summary>
/// <typeparam name="T">The type of the elements in the <see cref="IEnumerable{T}"/>.</typeparam>
/// <param name="enumerable">The <see cref="IEnumerable{T}"/> to get a random element from.</param>
/// <returns>A random element from the <see cref="IEnumerable{T}"/>.</returns>
/// <exception cref="ArgumentNullException">Thrown when <paramref name="enumerable"/> is null.</exception>
T Random<T>(this IEnumerable<T> enumerable);

Exception Extensions

/// <summary>
/// Create string with error message from all inner exceptions if exists.
/// </summary>
/// <returns> Error message. </returns>
string ToStringWithInner(this Exception exception);

HttpRequest Extensions

/// <summary>
/// Get remote host IP address using proxy "X-Real-IP", "CF-Connecting-IP", "X-Forwarded-For" headers, or connection remote IP address.
/// </summary>
/// <returns> IP address, or "Unknown" by default. </returns>
string GetRemoteAddress(this HttpRequest request);

Math Extensions

/// <summary>
/// Pow specified foundation to exponent.
/// </summary>
/// <param name="number"> Foundation. </param>
/// <param name="exponent"> Exponent of pow. </param>
/// <returns> Calculation result. </returns>
/// <exception cref="OverflowException"> Throws when calculation result is too big. </exception>
int Pow(this int number, int exponent);

Object Extensions

/// <summary>
/// Clone object with MemberwiseClone.
/// </summary>
/// <typeparam name="TObj"> Type of object. </typeparam>
/// <param name="obj"> Object to clone. </param>
/// <returns> Cloned object. </returns>
TObj MemberwiseClone<TObj>(this TObj obj);

ServiceCollection Extensions

/// <summary>
/// Adds <see cref="CpuUsageService"/> to the <see cref="IServiceCollection"/>.
/// </summary>
/// <param name="services"> Current <see cref="IServiceCollection"/> instance. </param>
/// <returns> Current <see cref="IServiceCollection"/> instance. </returns>
IServiceCollection AddCpuUsageService(this IServiceCollection services);

---

/// <summary>
/// Add all types inherited from TInterface.
/// </summary>
/// <param name="services"> Current <see cref="IServiceCollection"/> instance. </param>
/// <param name="serviceLifetime"> Service lifetime, default is Scoped. </param>
/// <typeparam name="TInterface"> Interface type. </typeparam>
/// <returns> Current <see cref="IServiceCollection"/> instance. </returns>
IServiceCollection AddTypesOfInterface<TInterface>(this IServiceCollection services, ServiceLifetime serviceLifetime = ServiceLifetime.Scoped) where TInterface : class

Stream Extensions

/// <summary>
/// Reads the bytes from the current stream and writes them to the byte array.
/// </summary>
/// <returns> Received byte array. </returns>
/// <exception cref="IOException"> An I/O error occurred. </exception>
/// <exception cref="ArgumentNullException"> Destination is null. </exception>
/// <exception cref="ObjectDisposedException"> Either the current stream or the destination stream is disposed. </exception>
/// <exception cref="NotSupportedException"> The current stream does not support reading, or the destination stream does not support writing. </exception>
byte[] ReadToEnd(this Stream stream);

---

/// <summary>
/// Asynchronously reads the bytes from the current stream and writes them to the byte array.
/// </summary>
/// <returns> Received byte array. </returns>
/// <exception cref="ArgumentNullException"> Destination is null. </exception>
/// <exception cref="ObjectDisposedException"> Either the current stream or the destination stream is disposed. </exception>
/// <exception cref="NotSupportedException"> The current stream does not support reading, or the destination stream does not support writing. </exception>
public static async Task<byte[]> ReadToEndAsync(this Stream stream)

---

/// <summary>
/// Calculate SHA512 hash of byte stream.
/// </summary>
/// <param name="stream"> Data to calculate hash. </param>
/// <returns> SHA512 hash of byte stream. </returns>
string SHA512(this Stream stream);

String Extensions

/// <summary>
/// Make first letter as lower case. If text is null or whitespace - returns <see cref="string.Empty"/>
/// </summary>
/// <returns> Text with lower case first letter. </returns>
string ToLowerFirstLetter(this string text);

---

/// <summary>
/// Make first letter as upper case. If text is null or whitespace - returns <see cref="string.Empty"/>
/// </summary>
/// <returns> Text with upper case first letter. </returns>
string ToUpperFirstLetter(this string text);

---

/// <summary>
/// Create SHA512 hash of specified text string.
/// </summary>
/// <returns> SHA512 hash. </returns>
string SHA512(this string str);

---

/// <summary>
/// Read only numbers from specified string.
/// </summary>
/// <returns> Parsed number, or -1 by default. </returns>
long ReadOnlyNumbers(this string str);

IP Address Extensions

/// <summary>
/// Get network address.
/// </summary>
/// <param name="address"> IP address. </param>
/// <param name="subnetMask"> Subnet mask. </param>
/// <returns> Network address. </returns>
IPAddress GetNetwork(this IPAddress address, IPAddress subnetMask);

---

/// <summary>
/// Get broadcast address.
/// </summary>
/// <param name="address"> IP address. </param>
/// <param name="subnetMask"> Subnet mask. </param>
/// <returns> Broadcast address. </returns>
IPAddress GetBroadcast(this IPAddress address, IPAddress subnetMask);

---

/// <summary>
/// Get network address.
/// </summary>
/// <param name="address"> IP address. </param>
/// <param name="subnetMask"> Subnet mask. </param>
/// <returns> Network address. </returns>
/// <exception cref="ArgumentOutOfRangeException"> Thrown when subnet mask is invalid. </exception>
IPAddress GetNetwork(this IPAddress address, int subnetMask);

---

/// <summary>
/// Get broadcast address.
/// </summary>
/// <param name="address"> IP address. </param>
/// <param name="subnetMask"> Subnet mask. </param>
/// <returns> Broadcast address. </returns>
/// <exception cref="ArgumentOutOfRangeException"> Thrown when subnet mask is invalid. </exception>
IPAddress GetBroadcast(this IPAddress address, int subnetMask);

Helpers

DateTime Helpers

/// <summary>
/// Parse DateTime from JSON format ISO 8601.
/// </summary>
/// <returns> Parsed datetime with UTC kind. </returns>
/// <exception cref="ArgumentException"></exception>
/// <exception cref="FormatException"></exception>
/// <exception cref="NotSupportedException"></exception>
DateTime ParseDateTime(string datetime);

---

/// <summary>
/// Parse DateTimeOffset from JSON format ISO 8601.
/// </summary>
/// <returns> Parsed datetime offset. </returns>
/// <exception cref="ArgumentException"></exception>
/// <exception cref="FormatException"></exception>
DateTimeOffset ParseDateTimeOffset(string datetime);

Reflection Helpers

/// <summary>
/// Get all types inherited from interface.
/// </summary>
/// <typeparam name="TInterface"> Interface type. </typeparam>
/// <returns> All types inherited from interface. </returns>
IEnumerable<Type> GetTypesOfInterface<TInterface>() where TInterface : class

---

/// <summary>
/// Copy matching properties from source to destination.
/// </summary>
/// <param name="source"> Source object. </param>
/// <param name="destination"> Destination object. </param>
void CopyMatchingProperties(object source, object destination);

String Helpers

/// <summary>
/// Fast generate pseudo random string with <see cref="DefaultCharset"/> and string length.
/// </summary>
/// <returns> Pseudo-random string. </returns>
string CreatePseudoRandomString();

---

/// <summary>
/// Fast generate pseudo random string with <see cref="DefaultCharset"/> and specified string length.
/// </summary>
/// <param name="length"> Result string length. </param>
/// <returns> Pseudo-random string. </returns>
string CreatePseudoRandomString(int length);

---

/// <summary>
/// Fast generate pseudo random string with specified charset and string length.
/// </summary>
/// <param name="charset"> Generator charset. </param>
/// <param name="length"> Result string length. </param>
/// <returns> Pseudo-random string. </returns>
string CreatePseudoRandomString(int length, string charset);

---

/// <summary>
/// Generate random string with <see cref="DefaultCharset"/> and string length.
/// </summary>
/// <returns> Really random string. </returns>
string CreateRandomString();

---

/// <summary>
/// Generate random string with <see cref="DefaultCharset"/> and specified string length.
/// </summary>
/// <param name="length"> Result string length. </param>
/// <returns> Really random string. </returns>
string CreateRandomString(int length);

---

/// <summary>
/// Generate random string with specified charset and string length.
/// </summary>
/// <param name="charset"> Generator charset. </param>
/// <param name="length"> Result string length. </param>
/// <returns> Really random string. </returns>
string CreateRandomString(int length, string charset);

---

/// <summary>
/// Remove spaces from string - trim, replace new lines and multiple spaces.
/// </summary>
/// <param name="comment"></param>
/// <returns></returns>
string RemoveSpaces(string? comment);

IP Address Helpers

/// <summary>
/// Convert IP address to number.
/// </summary>
/// <param name="ipAddress"> IP address. </param>
/// <returns> IP address as number. </returns>
BigInteger IpToNumber(string ipAddress);

---

/// <summary>
/// Convert number to IP address.
/// </summary>
/// <param name="ipNumber"> IP address as number. </param>
/// <returns> IP address. </returns>
IPAddress NumberToIp(BigInteger ipNumber);

---

/// <summary>
/// Get subnet mask address.
/// </summary>
/// <param name="subnetMask"> Subnet mask. </param>
/// <returns> Subnet address. </returns>
/// <exception cref="ArgumentOutOfRangeException"> Thrown when subnet mask is invalid. </exception>
IPAddress GetMaskAddress(int subnetMask);

---

/// <summary>
/// Extract subnet mask from IP address.
/// </summary>
/// <param name="ip"> IP address. </param>
/// <returns> Subnet mask, or null if not found. </returns>
int? ExtractMask(string ip);

Quartz Extensions

Usually, Quartz integration requires a lot of boilerplate code. This library simplifies the process of adding Quartz jobs to the project.

ServiceCollection Extensions

/// <summary>
/// Adds Quartz jobs with <see cref="JobTriggerAttribute"/> to the <see cref="IServiceCollection"/>.
/// </summary>
/// <param name="services">IServiceCollection instance.</param>
/// <returns> Current <see cref="IServiceCollection"/> instance. </returns>
IServiceCollection AddQuartzJobs(this IServiceCollection services);

example of usage:

builder.Services.AddQuartzJobs();

---

Attributes

JobTriggerAttribute

Example of usage:

[JobTrigger(minutes: 1)]
[DisallowConcurrentExecution]
public class TestJob : IJob
{
    public Task Execute(IJobExecutionContext context)
    {
        Console.WriteLine("Test job executed.");
        return Task.CompletedTask;
    }
}

Authorization Extensions

ServiceCollection Extensions

/// <summary>
/// Adds CORS policy with origins.
/// </summary>
/// <param name="services"> <see cref="IServiceCollection"/> instance. </param>
/// <param name="policyName"> Name of the policy. </param>
/// <param name="origins"> Origins to add to the policy. </param>
/// <returns></returns>
IServiceCollection AddCorsWithOrigins(this IServiceCollection services, string policyName, params string[] origins);

---

/// <summary>
/// Adds JWT authentication from JwtSettings section or Jwt[Key] configuration values.
/// </summary>
/// <param name="services"> <see cref="IServiceCollection"/> instance. </param>
/// <param name="configuration"> Configuration from which to get JWT settings. </param>
/// <returns> Current <see cref="IServiceCollection"/> instance. </returns>
/// <exception cref="KeyNotFoundException"> When JwtSettings section is not set. </exception>
IServiceCollection AddJwt(this IServiceCollection services, IConfiguration configuration);

---

/// <summary>
/// Ignore <see cref="AuthorizeAttribute"/> when application is on development environment.
/// </summary>
/// <returns> Current <see cref="IServiceCollection"/> instance. </returns>
IServiceCollection AllowAnonymousOnDevelopment(this IServiceCollection services);

Drawing Extensions

Image Extensions

/// <summary>
/// Fit image to target size and copy and blur it to background.
/// </summary>
/// <param name="image">Target image.</param>
/// <param name="targetWidth">Target width.</param>
/// <param name="targetHeight">Target height.</param>
/// <param name="gaussianBlurLevel">Gaussian blur level (optional).</param>
/// <returns cref="Image">Image with blured background.</returns>
Image FitBluredBackground(this Image image, int targetWidth, int targetHeight, float gaussianBlurLevel = 8F);

---

/// <summary>
/// Save image as JPEG to byte array.
/// </summary>
/// <param name="image">Target image.</param>
/// <returns>Byte array of image.</returns>
byte[] SaveAsJpegToArray(this Image image);

Entity Framework Extensions

ServiceCollection Extensions

/// <summary>
/// Adds exception handler for EasyExtensions.EntityFrameworkCore.Exceptions to the <see cref="IServiceCollection"/>.
/// </summary>
/// <param name="services"> The <see cref="IServiceCollection"/> instance. </param>
/// <returns> Current <see cref="IServiceCollection"/> instance. </returns>
IServiceCollection AddExceptionHandler(this IServiceCollection services);

---

/// <summary>
/// Sets up Gridify.
/// </summary>
IServiceCollection AddGridifyMappers(this IServiceCollection services);

---

/// <summary>
/// Adds a <see cref="DbContext"/> to the <see cref="IServiceCollection"/> using the 
/// <see cref="IConfigurationRoot"/> to build the connection string from DatabaseSettings section.
/// </summary>
/// <typeparam name="TContext"> The type of <see cref="DbContext"/> to add. </typeparam>
/// <param name="services"> The <see cref="IServiceCollection"/> instance. </param>
/// <param name="configuration"> The <see cref="IConfigurationRoot"/> instance. </param>
/// <param name="maxPoolSize"> The maximum pool size, default is 100. </param>
/// <param name="timeout_s"> The connection timeout in seconds, default is 60. </param>
/// <returns> Current <see cref="IServiceCollection"/> instance. </returns>
/// <exception cref="KeyNotFoundException"> When DatabaseSettings section is not set. </exception>
IServiceCollection AddDbContext<TContext>(this IServiceCollection services, IConfigurationRoot configuration, int maxPoolSize = 100, int timeout_s = 60) where TContext : DbContext

Host Extensions

/// <summary>
/// Applies migrations to the database.
/// </summary>
/// <returns> Current <see cref="IHost"/> instance. </returns>
IHost ApplyMigrations<TContext>(this IHost host) where TContext : DbContext

Sentry Extensions

WebHostBuilder Extensions

/// <summary>
/// Use Sentry integration with specified DSN.
/// </summary>
/// <param name="builder"> Current <see cref="IWebHostBuilder"/> instance. </param>
/// <param name="dsn"> Sentry DSN. </param>
/// <param name="forceUseInDevelopment"> Force use in development environment. </param>
/// <returns> Current <see cref="IWebHostBuilder"/> instance. </returns>
IWebHostBuilder UseSentryWithUserCapturing(this IWebHostBuilder builder, string dsn, bool forceUseInDevelopment = false);

Contributing

Contributions are what make the open source community such an amazing place to learn, inspire, and create. Any contributions you make are greatly appreciated.

If you have a suggestion that would make this better, please fork the repo and create a pull request. You can also simply open an issue with the tag "enhancement". Don't forget to give the project a star! Thanks again!

1. Fork the Project
2. Create your Feature Branch (git checkout -b feature/AmazingFeature)
3. Commit your Changes (git commit -m 'Add some AmazingFeature')
4. Push to the Branch (git push origin feature/AmazingFeature)
5. Open a Pull Request

License

Distributed under the MIT License. See LICENSE.md for more information.

Contact

E-Mail