SNOW-798828: Target .NET Standard 2.0

.github/workflows/main.yml

@@ -22,7 +22,7 @@ concurrency:
   cancel-in-progress: true
 
   # uncomment to run the tests sequentially
-  #SEQUENTIAL_ENV: SEQUENTIAL_TEST_RUN
+  # SEQUENTIAL_ENV: SEQUENTIAL_TEST_RUN
 
 jobs:
   test-windows:
@@ -31,7 +31,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        dotnet: ['net8.0','net6.0', 'net472', 'net471']
+        dotnet: ['net6.0', 'net7.0', 'net8.0', 'net462', 'net471', 'net472', 'net48', 'net481']
         cloud_env: ['AZURE', 'GCP', 'AWS']
     steps:
       - name: Checkout code
@@ -92,7 +92,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        dotnet: ['net6.0', 'net8.0']
+        dotnet: ['net6.0', 'net7.0', 'net8.0']
         cloud_env: ['AZURE', 'GCP', 'AWS']
     steps:
       - uses: actions/checkout@v3
@@ -151,7 +151,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        dotnet: ['net6.0', 'net8.0']
+        dotnet: ['net6.0', 'net7.0', 'net8.0']
         cloud_env: ['AZURE', 'GCP', 'AWS']
     steps:
       - uses: actions/checkout@v4

README.md

@@ -6,11 +6,17 @@
 
 The Snowflake .NET connector supports the the following .NET framework and libraries versions:
 
+- .NET Framework 4.6.2
 - .NET Framework 4.7.1
 - .NET Framework 4.7.2
+- .NET Framework 4.8
+- .NET Framework 4.8.1
 - .NET 6.0
+- .NET 7.0
 - .NET 8.0
 
+Disclaimer: While the connector targets netstandard2.0 and may work with versions in its [support matrix](https://learn.microsoft.com/en-us/dotnet/standard/net-standard?tabs=net-standard-2-0#select-net-standard-version), only the versions listed above are supported and tested by the connector
+
 Please refer to the [Notice](#notice) section below for information about safe usage of the .NET Driver
 
 # Coding conventions for the project
@@ -144,7 +150,7 @@ Logging description and configuration:
     were not performed where the insecureMode flag was set to false, which is the default setting.
     From version v2.1.5 CRL is working back as intended.
 
-Note that the driver is now targeting .NET 6.0. When upgrading, you might also need to run “Update-Package -reinstall” to update the dependencies.
+Note that the driver is now targeting .NET Standard 2.0. When upgrading, you might also need to run “Update-Package -reinstall” to update the dependencies.
 
 See more:
 * [Security Policy](SECURITY.md)

Snowflake.Data.Tests/Snowflake.Data.Tests.csproj

@@ -1,9 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net8.0;net6.0;net471;net472</TargetFrameworks>
-    <TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">net6.0;net8.0</TargetFrameworks>
-    <RuntimeFrameworkVersion>6.0.0</RuntimeFrameworkVersion>
-    <RuntimeFrameworkVersion Condition="'$(TargetFramework)' == 'net8.0'">8.0.0</RuntimeFrameworkVersion>
+    <TargetFrameworks>net6.0;net7.0;net8.0;net462;net471;net472;net48;net481</TargetFrameworks>
+    <TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">net6.0;net7.0;net8.0;</TargetFrameworks>
     <Title>Snowflake.Data.Tests</Title>
     <Description>Snowflake Connector for .NET</Description>
     <Company>Snowflake Computing, Inc</Company>

Snowflake.Data.Tests/UnitTests/ArrowResultChunkTest.cs

@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2012-2023 Snowflake Computing Inc. All rights reserved.
  */
 

Snowflake.Data.Tests/UnitTests/ArrowResultSetTest.cs

@@ -275,10 +275,18 @@ public void TestGetText()
         [Test]
         public void TestGetTextWithOneChar()
         {
-            var testValues =
-                TestDataGenarator.AsciiCodes.ToCharArray()
-                    .Append(TestDataGenarator.SnowflakeUnicode)
-                    .ToArray();
+            char[] testValues;
+
+#if NET462
+            var charArr = TestDataGenarator.AsciiCodes.ToList();
+            charArr.Add(TestDataGenarator.SnowflakeUnicode);
+            testValues = charArr.ToArray();
+#else
+            testValues =
+            TestDataGenarator.AsciiCodes.ToCharArray()
+                .Append(TestDataGenarator.SnowflakeUnicode)
+                .ToArray();
+#endif
 
             PrepareTestCase(SFDataType.TEXT, 0, testValues);
 

Snowflake.Data.Tests/UnitTests/SFEnvironmentTest.cs

@@ -0,0 +1,36 @@
+using NUnit.Framework;
+using Snowflake.Data.Core;
+
+namespace Snowflake.Data.Tests.UnitTests
+{
+    [TestFixture]
+    class SFEnvironmentTest
+    {
+        [Test]
+        public void TestRuntimeExtraction()
+        {
+            // Arrange
+            string expectedRuntime = ".NET";
+            string expectedVersion;
+
+#if NETFRAMEWORK
+            expectedRuntime += "Framework";
+            expectedVersion = "4.8";
+#elif NET6_0
+            expectedVersion = "6.0";
+#elif NET7_0
+            expectedVersion = "7.0";
+#elif NET8_0
+            expectedVersion = "8.0";
+#endif
+
+            // Act
+            var actualRuntime = SFEnvironment.ExtractRuntime();
+            var actualVersion = SFEnvironment.ExtractVersion();
+
+            // Assert
+            Assert.AreEqual(expectedRuntime, actualRuntime);
+            Assert.AreEqual(expectedVersion, actualVersion);
+        }
+    }
+}

Snowflake.Data.Tests/Util/SnowflakeDbExceptionAssert.cs

@@ -41,11 +41,7 @@ public static void HasHttpErrorCodeInExceptionChain(Exception exception, HttpSta
                         case SnowflakeDbException se:
                             return se.ErrorCode == (int)expected;
                         case HttpRequestException he:
-#if NETFRAMEWORK
                             return he.Message.Contains(((int)expected).ToString());
-#else
-                            return he.StatusCode == expected;
-#endif
                         default:
                             return false;
                     }

Snowflake.Data/Core/ArrowResultChunk.cs

@@ -138,7 +138,6 @@ public override UTF8Buffer ExtractCell(int rowIndex, int columnIndex)
             throw new NotSupportedException();
         }
 
-        [Obsolete("ExtractCell with columnIndex is deprecated", false)]
         public override UTF8Buffer ExtractCell(int columnIndex)
         {
             throw new NotSupportedException();

Snowflake.Data/Core/Authenticator/ExternalBrowserAuthenticator.cs

@@ -204,10 +204,6 @@ private static void StartBrowser(string url)
             }
 
             // The following code is learnt from https://brockallen.com/2016/09/24/process-start-for-urls-on-net-core/
-#if NETFRAMEWORK
-            // .net standard would pass here
-            Process.Start(new ProcessStartInfo(url) { UseShellExecute = true });
-#else
             // hack because of this: https://github.com/dotnet/corefx/issues/10361
             if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
             {
@@ -226,7 +222,6 @@ private static void StartBrowser(string url)
             {
                 throw new SnowflakeDbException(SFError.UNSUPPORTED_PLATFORM);
             }
-#endif
         }
 
         private static string ValidateAndExtractToken(HttpListenerRequest request)

Snowflake.Data/Core/Authenticator/OktaAuthenticator.cs

@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2012-2024 Snowflake Computing Inc. All rights reserved.
  */
 
@@ -82,11 +82,7 @@ async Task IAuthenticator.AuthenticateAsync(CancellationToken cancellationToken)
                     s_logger.Debug("step 4: Get SAML response from SSO");
                     var samlRestRequest = BuildSamlRestRequest(ssoUrl, onetimeToken);
                     samlRawResponse = await session.restRequester.GetAsync(samlRestRequest, cancellationToken).ConfigureAwait(false);
-#if NETFRAMEWORK
                     _rawSamlTokenHtmlString = await samlRawResponse.Content.ReadAsStringAsync().ConfigureAwait(false);
-#else
-                    _rawSamlTokenHtmlString = await samlRawResponse.Content.ReadAsStringAsync(cancellationToken).ConfigureAwait(false);
-#endif
                     s_logger.Debug("step 5: Verify postback URL in SAML response");
                     VerifyPostbackUrl();
 

Snowflake.Data/Core/RestParams.cs

@@ -1,6 +1,6 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
+using System;
+using System.Reflection;
+using System.Runtime.InteropServices;
 
 namespace Snowflake.Data.Core
 {
@@ -59,23 +59,30 @@ static SFEnvironment()
             ClientEnv = new LoginRequestClientEnv()
             {
                 application = System.Diagnostics.Process.GetCurrentProcess().ProcessName,
-                osVersion = System.Environment.OSVersion.VersionString,
-#if NETFRAMEWORK
-                netRuntime = "NETFramework",
-                netVersion = "4.7.1",
-#else
-                netRuntime = "NETCore",
-                netVersion ="2.0",
-#endif
+                osVersion = Environment.OSVersion.VersionString,
+                netRuntime = ExtractRuntime(),
+                netVersion = ExtractVersion(),
             };
 
-            DriverVersion = System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();
+            DriverVersion = Assembly.GetExecutingAssembly().GetName().Version.ToString();
             DriverName = ".NET";
         }
 
         //temporary change for pretend as ODBC
         internal static string DriverName { get; set; }
         internal static string DriverVersion { get; set; }
         internal static LoginRequestClientEnv ClientEnv { get; private set; }
+
+        internal static string ExtractRuntime()
+        {
+            return RuntimeInformation.FrameworkDescription.Substring(0, RuntimeInformation.FrameworkDescription.LastIndexOf(' ')).Replace(" ", "");
+        }
+
+        internal static string ExtractVersion()
+        {
+            var version = RuntimeInformation.FrameworkDescription.Substring(RuntimeInformation.FrameworkDescription.LastIndexOf(' ')).Replace(" ", "");
+            int secondPeriodIndex = version.IndexOf('.', version.IndexOf('.') + 1);
+            return version.Substring(0, secondPeriodIndex);
+        }
     }
 }

Snowflake.Data/Snowflake.Data.csproj

@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net8.0;net6.0;net471;net472</TargetFrameworks>
-    <TargetFrameworks Condition="'$(OS)' != 'Windows_NT'">net6.0;net8.0</TargetFrameworks>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <Title>Snowflake.Data</Title>
     <PackageId>Snowflake.Data</PackageId>
     <PackageLicenseUrl>https://github.com/snowflakedb/snowflake-connector-net/blob/master/LICENSE</PackageLicenseUrl>
@@ -26,7 +25,7 @@
   <ItemGroup>
     <PackageReference Include="Apache.Arrow" Version="14.0.2" />
     <PackageReference Include="AWSSDK.S3" Version="3.7.0.4" />
-    <PackageReference Include="Google.Cloud.Storage.V1" Version="4.6.0" />
+    <PackageReference Include="Google.Cloud.Storage.V1" Version="4.10.0" />
     <PackageReference Include="Azure.Storage.Blobs" Version="12.13.0" />
     <PackageReference Include="Azure.Storage.Common" Version="12.12.0" />
     <PackageReference Include="Mono.Unix" Version="7.1.0-final.1.21458.1" />
@@ -37,14 +36,6 @@
     <PackageReference Include="System.Text.RegularExpressions" Version="4.3.1" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'net471' Or '$(TargetFramework)' == 'net472'">
-    <Reference Include="System.Net.Http" />
-  </ItemGroup>
-
-  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="System.Configuration.ConfigurationManager" Version="5.0.0" />
-  </ItemGroup>
-
   <ItemGroup Condition="'$(Configuration)' != 'Release'">
     <InternalsVisibleTo Include="Snowflake.Data.Tests" />
     <!--needed by Moq to be able to mock internal interfaces-->