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‎LICENSE‎

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This file was deleted.

‎LICENSE.md‎

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The MIT License (MIT)
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Copyright (c) 2018 Tomasz Pęczek
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

‎Lib.Net.Http.WebPush/Lib.Net.Http.WebPush.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio 15
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VisualStudioVersion = 15.0.27130.2010
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Lib.Net.Http.WebPush", "Lib.Net.Http.WebPush\Lib.Net.Http.WebPush.csproj", "{79FDCAAA-6129-4FBB-B94E-7F7BE9A07C7C}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{79FDCAAA-6129-4FBB-B94E-7F7BE9A07C7C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{79FDCAAA-6129-4FBB-B94E-7F7BE9A07C7C}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{79FDCAAA-6129-4FBB-B94E-7F7BE9A07C7C}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{79FDCAAA-6129-4FBB-B94E-7F7BE9A07C7C}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {88535C7E-5564-4AC1-A41B-18DD05637943}
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EndGlobalSection
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EndGlobal

‎Lib.Net.Http.WebPush/Lib.Net.Http.WebPush/Internals/ECKeyHelper.cs‎

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using System;
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using System.IO;
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using Org.BouncyCastle.Asn1;
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using Org.BouncyCastle.Asn1.Nist;
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using Org.BouncyCastle.Asn1.X9;
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using Org.BouncyCastle.Crypto;
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using Org.BouncyCastle.Crypto.Parameters;
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using Org.BouncyCastle.OpenSsl;
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using Org.BouncyCastle.Security;
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namespace Lib.Net.Http.WebPush.Internals
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{
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internal static class ECKeyHelper
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{
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internal static ECPrivateKeyParameters GetECPrivateKeyParameters(byte[] privateKey)
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{
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Asn1Object derSequence = new DerSequence(
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new DerInteger(1),
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new DerOctetString(privateKey),
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new DerTaggedObject(0, new DerObjectIdentifier("1.2.840.10045.3.1.7"))
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);
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string pemKey = "-----BEGIN EC PRIVATE KEY-----\n"
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+ Convert.ToBase64String(derSequence.GetDerEncoded())
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+ "\n-----END EC PRIVATE KEY----";
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PemReader pemKeyReader = new PemReader(new StringReader(pemKey));
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AsymmetricCipherKeyPair keyPair = (AsymmetricCipherKeyPair)pemKeyReader.ReadObject();
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return (ECPrivateKeyParameters)keyPair.Private;
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}
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internal static ECPublicKeyParameters GetECPublicKeyParameters(byte[] publicKey)
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{
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Asn1Object derSequence = new DerSequence(
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new DerSequence(new DerObjectIdentifier(@"1.2.840.10045.2.1"), new DerObjectIdentifier(@"1.2.840.10045.3.1.7")),
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new DerBitString(publicKey)
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);
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string pemKey = "-----BEGIN PUBLIC KEY-----\n"
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+ Convert.ToBase64String(derSequence.GetDerEncoded())
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+ "\n-----END PUBLIC KEY-----";
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PemReader pemKeyReader = new PemReader(new StringReader(pemKey));
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return (ECPublicKeyParameters)pemKeyReader.ReadObject();
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}
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internal static AsymmetricCipherKeyPair GenerateAsymmetricCipherKeyPair()
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{
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X9ECParameters ecParameters = NistNamedCurves.GetByName("P-256");
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ECDomainParameters ecDomainParameters = new ECDomainParameters(ecParameters.Curve, ecParameters.G, ecParameters.N, ecParameters.H, ecParameters.GetSeed());
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IAsymmetricCipherKeyPairGenerator keyPairGenerator = GeneratorUtilities.GetKeyPairGenerator("ECDH");
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keyPairGenerator.Init(new ECKeyGenerationParameters(ecDomainParameters, new SecureRandom()));
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return keyPairGenerator.GenerateKeyPair();
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}
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}
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}

‎Lib.Net.Http.WebPush/Lib.Net.Http.WebPush/Internals/UrlBase64Converter.cs‎

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using System;
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namespace Lib.Net.Http.WebPush.Internals
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{
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internal static class UrlBase64Converter
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{
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internal static byte[] FromUrlBase64String(string input)
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{
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input = input.Replace('-', '+').Replace('_', '/');
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while (input.Length % 4 != 0)
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{
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input += "=";
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}
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return Convert.FromBase64String(input);
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}
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internal static string ToUrlBase64String(byte[] input)
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{
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return Convert.ToBase64String(input).Replace('+', '-').Replace('/', '_').TrimEnd('=');
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}
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}
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}

‎Lib.Net.Http.WebPush/Lib.Net.Http.WebPush/Lib.Net.Http.WebPush.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<Description>Lib.Net.Http.WebPush is a library which provides a Web Push Protocol based client for Push Service.</Description>
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<Copyright>Copyright © 2018 Tomasz Pęczek</Copyright>
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<VersionPrefix>1.0.0</VersionPrefix>
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<Authors>Tomasz Pęczek</Authors>
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<TargetFrameworks>net451;netstandard1.6</TargetFrameworks>
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<AssemblyTitle>Lib.Net.Http.WebPush</AssemblyTitle>
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<AssemblyName>Lib.Net.Http.WebPush</AssemblyName>
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<PackageId>Lib.Net.Http.WebPush</PackageId>
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<PackageTags>push;notifications;webpush;vapid</PackageTags>
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<PackageProjectUrl>https://github.com/tpeczek/Lib.Net.Http.WebPush</PackageProjectUrl>
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<PackageLicenseUrl>https://github.com/tpeczek/Lib.Net.Http.WebPush/blob/master/LICENSE.md</PackageLicenseUrl>
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<RepositoryType>git</RepositoryType>
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<RepositoryUrl>git://github.com/tpeczek/Lib.Net.Http.WebPush</RepositoryUrl>
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<GenerateAssemblyTitleAttribute>true</GenerateAssemblyTitleAttribute>
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<GenerateAssemblyDescriptionAttribute>true</GenerateAssemblyDescriptionAttribute>
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<GenerateAssemblyProductAttribute>true</GenerateAssemblyProductAttribute>
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<GenerateAssemblyCopyrightAttribute>true</GenerateAssemblyCopyrightAttribute>
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<GenerateDocumentationFile>true</GenerateDocumentationFile>
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<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
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<LangVersion>latest</LangVersion>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Newtonsoft.Json" Version="10.0.1" />
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<PackageReference Include="Lib.Net.Http.EncryptedContentEncoding" Version="1.1.0" />
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</ItemGroup>
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<ItemGroup Condition=" '$(TargetFramework)' == 'net451' ">
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<PackageReference Include="BouncyCastle" Version="1.8.1" />
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<PackageReference Include="System.Net.Http" Version="4.3.1" />
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</ItemGroup>
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<ItemGroup Condition=" '$(TargetFramework)' == 'netstandard1.6' ">
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<PackageReference Include="BouncyCastle.CoreClr" Version="1.0.0" />
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</ItemGroup>
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</Project>

‎README.md‎

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# Lib.Net.Http.WebPush
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Lib.Net.Http.WebPush is a library which provides a Web Push Protocol based client for Push Service.
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Lib.Net.Http.WebPush is a library which provides a [Web Push Protocol](https://tools.ietf.org/html/rfc8030) based client for Push Service. It provides support for [Voluntary Application Server Identification (VAPID) for Web Push](https://tools.ietf.org/html/rfc8292) and [Message Encryption for Web Push](https://tools.ietf.org/html/rfc8291).
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## Donating
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My blog and open source projects are result of my passion for software development, but they require a fair amount of my personal time. If you got value from any of the content I create, then I would appreciate your support by [buying me a coffee](https://www.buymeacoffee.com/tpeczek).
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<a href="https://www.buymeacoffee.com/tpeczek"><img src="https://www.buymeacoffee.com/assets/img/custom_images/black_img.png" style="height: 41px !important;width: 174px !important;box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;-webkit-box-shadow: 0px 3px 2px 0px rgba(190, 190, 190, 0.5) !important;" target="_blank"></a>
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## Copyright and License
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Copyright © 2018 Tomasz Pęczek
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Licensed under the [MIT License](https://github.com/tpeczek/Lib.Net.Http.WebPush/blob/master/LICENSE.md)

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