Add C bindings and a C# wrapper

2 files changed, 91 insertions, 0 deletions

diff --git a/wrappers/csharp/EduVpnCommonTests/EduVpnCommonTests.csproj b/wrappers/csharp/EduVpnCommonTests/EduVpnCommonTests.csproj
new file mode 100644
index 0000000..cf58249
--- /dev/null
+++ b/wrappers/csharp/EduVpnCommonTests/EduVpnCommonTests.csproj
@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFramework>net5.0</TargetFramework>
+		<IsPackable>false</IsPackable>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
+		<PackageReference Include="NUnit" Version="3.13.1" />
+		<PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
+		<PackageReference Include="coverlet.collector" Version="3.0.2" />
+	</ItemGroup>
+
+	<ItemGroup>
+	  <ProjectReference Include="../EduVpnCommon.csproj" />
+	</ItemGroup>
+
+</Project>
diff --git a/wrappers/csharp/EduVpnCommonTests/VerifyTests.cs b/wrappers/csharp/EduVpnCommonTests/VerifyTests.cs
new file mode 100644
index 0000000..933f2bc
--- /dev/null
+++ b/wrappers/csharp/EduVpnCommonTests/VerifyTests.cs
@@ -0,0 +1,72 @@
+using System;
+using System.IO;
+using System.Linq;
+using EduVpnCommon;
+using NUnit.Framework;
+
+namespace EduVpnCommonTests
+{
+	[TestFixture(TestOf = typeof(Discovery)), Parallelizable]
+	public class VerifyTests
+	{
+		// Relative to e.g. EduVpnCommonTests/bin/Debug/net5.0
+		readonly string testDataDir_ = $"{TestContext.CurrentContext.TestDirectory}/../../../../../../test_data";
+
+		[OneTimeSetUp]
+		public void OneTimeSetUp() =>
+			Discovery.InsecureTestingSetExtraKey(File.ReadLines($"{testDataDir_}/dummy/public.key").Last());
+
+		[Test]
+		[TestCase("dummy/server_list.json.minisig",       "dummy/server_list.json",       "server_list.json")]
+		[TestCase("dummy/organization_list.json.minisig", "dummy/organization_list.json", "organization_list.json")]
+		public void TestValid(string sigFile, string jsonFile, string expectedFileName) =>
+			Discovery.Verify(
+				File.ReadAllBytes($"{testDataDir_}/{sigFile}"),
+				File.ReadAllBytes($"{testDataDir_}/{jsonFile}"),
+				expectedFileName,
+				DateTimeOffset.UnixEpoch);
+		
+		[Test]
+		[TestCase("dummy/random.txt", "dummy/server_list.json", "server_list.json")]
+		public void TestInvalidSignature(string sigFile, string jsonFile, string expectedFileName) =>
+			Assert.Throws(Is.TypeOf<VerifyException>()
+					.And.Property(nameof(VerifyException.Code)).EqualTo(VerifyErrorCode.ErrInvalidSignature),
+				() => Discovery.Verify(
+					File.ReadAllBytes($"{testDataDir_}/{sigFile}"),
+					File.ReadAllBytes($"{testDataDir_}/{jsonFile}"),
+					expectedFileName,
+					DateTimeOffset.UnixEpoch));
+
+		[Test]
+		[TestCase("dummy/server_list.json.wrong_key.minisig", "dummy/server_list.json", "server_list.json")]
+		public void TestWrongKey(string sigFile, string jsonFile, string expectedFileName) =>
+			Assert.Throws(Is.TypeOf<VerifyException>()
+					.And.Property(nameof(VerifyException.Code)).EqualTo(VerifyErrorCode.ErrInvalidSignatureUnknownKey),
+				() => Discovery.Verify(
+					File.ReadAllBytes($"{testDataDir_}/{sigFile}"),
+					File.ReadAllBytes($"{testDataDir_}/{jsonFile}"),
+					expectedFileName,
+					DateTimeOffset.UnixEpoch));
+
+		[Test]
+		[TestCase("dummy/server_list.json.minisig", "dummy/server_list.json", "server_list.json")]
+		public void TestOldSignature(string sigFile, string jsonFile, string expectedFileName) =>
+			Assert.Throws(Is.TypeOf<VerifyException>()
+					.And.Property(nameof(VerifyException.Code)).EqualTo(VerifyErrorCode.ErrTooOld),
+				() => Discovery.Verify(
+					File.ReadAllBytes($"{testDataDir_}/{sigFile}"),
+					File.ReadAllBytes($"{testDataDir_}/{jsonFile}"),
+					expectedFileName,
+					DateTimeOffset.MaxValue));
+
+		[Test]
+		[TestCase("dummy/other_list.json.minisig", "dummy/other_list.json", "other_list.json")]
+		public void TestUnknownExpectedFile(string sigFile, string jsonFile, string expectedFileName) =>
+			Assert.Throws<ArgumentException>(
+				() => Discovery.Verify(
+					File.ReadAllBytes($"{testDataDir_}/{sigFile}"),
+					File.ReadAllBytes($"{testDataDir_}/{jsonFile}"),
+					expectedFileName,
+					DateTimeOffset.UnixEpoch));
+	}
+}
\ No newline at end of file