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Remove AllowCaseFunction feature flag (#4316)

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This commit is contained in:
eric sciple
2026-03-27 11:45:42 -05:00
committed by GitHub
parent 9728019b24
commit f0c228635e
12 changed files with 69 additions and 82 deletions
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1
src/Runner.Worker/ActionManifestManager.cs
View File

@@ -316,7 +316,6 @@ namespace GitHub.Runner.Worker
Schema = _actionManifestSchema,
// TODO: Switch to real tracewriter for cutover
TraceWriter = new GitHub.Actions.WorkflowParser.ObjectTemplating.EmptyTraceWriter(),
AllowCaseFunction = false,
};
// Expression values from execution context

3
src/Runner.Worker/ActionManifestManagerLegacy.cs
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@@ -1,4 +1,4 @@
using System;
using System;
using System.Collections.Generic;
using System.IO;
using System.Threading;
@@ -315,7 +315,6 @@ namespace GitHub.Runner.Worker
maxBytes: 10 * 1024 * 1024),
Schema = _actionManifestSchema,
TraceWriter = executionContext.ToTemplateTraceWriter(),
AllowCaseFunction = false,
};
// Expression values from execution context

16
src/Sdk/DTExpressions2/Expressions2/ExpressionParser.cs
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@@ -17,10 +17,9 @@ namespace GitHub.DistributedTask.Expressions2
String expression,
ITraceWriter trace,
IEnumerable<INamedValueInfo> namedValues,
IEnumerable<IFunctionInfo> functions,
Boolean allowCaseFunction = true)
IEnumerable<IFunctionInfo> functions)
{
var context = new ParseContext(expression, trace, namedValues, functions, allowCaseFunction: allowCaseFunction);
var context = new ParseContext(expression, trace, namedValues, functions);
context.Trace.Info($"Parsing expression: <{expression}>");
return CreateTree(context);
}
@@ -416,12 +415,6 @@ namespace GitHub.DistributedTask.Expressions2
String name,
out IFunctionInfo functionInfo)
{
if (String.Equals(name, "case", StringComparison.OrdinalIgnoreCase) && !context.AllowCaseFunction)
{
functionInfo = null;
return false;
}
return ExpressionConstants.WellKnownFunctions.TryGetValue(name, out functionInfo) ||
context.ExtensionFunctions.TryGetValue(name, out functionInfo);
}
@@ -429,7 +422,6 @@ namespace GitHub.DistributedTask.Expressions2
private sealed class ParseContext
{
public Boolean AllowUnknownKeywords;
public Boolean AllowCaseFunction;
public readonly String Expression;
public readonly Dictionary<String, IFunctionInfo> ExtensionFunctions = new Dictionary<String, IFunctionInfo>(StringComparer.OrdinalIgnoreCase);
public readonly Dictionary<String, INamedValueInfo> ExtensionNamedValues = new Dictionary<String, INamedValueInfo>(StringComparer.OrdinalIgnoreCase);
@@ -445,8 +437,7 @@ namespace GitHub.DistributedTask.Expressions2
ITraceWriter trace,
IEnumerable<INamedValueInfo> namedValues,
IEnumerable<IFunctionInfo> functions,
Boolean allowUnknownKeywords = false,
Boolean allowCaseFunction = true)
Boolean allowUnknownKeywords = false)
{
Expression = expression ?? String.Empty;
if (Expression.Length > ExpressionConstants.MaxLength)
@@ -467,7 +458,6 @@ namespace GitHub.DistributedTask.Expressions2
LexicalAnalyzer = new LexicalAnalyzer(Expression);
AllowUnknownKeywords = allowUnknownKeywords;
AllowCaseFunction = allowCaseFunction;
}
private class NoOperationTraceWriter : ITraceWriter

6
src/Sdk/DTObjectTemplating/ObjectTemplating/TemplateContext.cs
View File

@@ -86,12 +86,6 @@ namespace GitHub.DistributedTask.ObjectTemplating
internal ITraceWriter TraceWriter { get; set; }
/// <summary>
/// Gets or sets a value indicating whether the case expression function is allowed.
/// Defaults to true. Set to false to disable the case function.
/// </summary>
internal Boolean AllowCaseFunction { get; set; } = true;
private IDictionary<String, Int32> FileIds
{
get

8
src/Sdk/DTObjectTemplating/ObjectTemplating/Tokens/TemplateToken.cs
View File

@@ -57,7 +57,7 @@ namespace GitHub.DistributedTask.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,
@@ -94,7 +94,7 @@ namespace GitHub.DistributedTask.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,
@@ -123,7 +123,7 @@ namespace GitHub.DistributedTask.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,
@@ -152,7 +152,7 @@ namespace GitHub.DistributedTask.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,

2
src/Sdk/DTPipelines/Pipelines/ObjectTemplating/PipelineTemplateConverter.cs
View File

@@ -681,7 +681,7 @@ namespace GitHub.DistributedTask.Pipelines.ObjectTemplating
var node = default(ExpressionNode);
try
{
node = expressionParser.CreateTree(condition, null, namedValues, functions, allowCaseFunction: context.AllowCaseFunction) as ExpressionNode;
node = expressionParser.CreateTree(condition, null, namedValues, functions) as ExpressionNode;
}
catch (Exception ex)
{

20
src/Sdk/Expressions/ExpressionParser.cs
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@@ -1,4 +1,4 @@
#nullable disable // Consider removing in the future to minimize likelihood of NullReferenceException; refer https://learn.microsoft.com/en-us/dotnet/csharp/nullable-references
#nullable disable // Consider removing in the future to minimize likelihood of NullReferenceException; refer https://learn.microsoft.com/en-us/dotnet/csharp/nullable-references
using System;
using System.Collections.Generic;
@@ -17,10 +17,9 @@ namespace GitHub.Actions.Expressions
String expression,
ITraceWriter trace,
IEnumerable<INamedValueInfo> namedValues,
IEnumerable<IFunctionInfo> functions,
Boolean allowCaseFunction = true)
IEnumerable<IFunctionInfo> functions)
{
var context = new ParseContext(expression, trace, namedValues, functions, allowCaseFunction: allowCaseFunction);
var context = new ParseContext(expression, trace, namedValues, functions);
context.Trace.Info($"Parsing expression: <{expression}>");
return CreateTree(context);
}
@@ -322,7 +321,7 @@ namespace GitHub.Actions.Expressions
context.Operators.Pop();
}
var functionOperands = PopOperands(context, parameterCount);
// Node already exists on the operand stack
function = (Function)context.Operands.Peek();
@@ -416,12 +415,6 @@ namespace GitHub.Actions.Expressions
String name,
out IFunctionInfo functionInfo)
{
if (String.Equals(name, "case", StringComparison.OrdinalIgnoreCase) && !context.AllowCaseFunction)
{
functionInfo = null;
return false;
}
return ExpressionConstants.WellKnownFunctions.TryGetValue(name, out functionInfo) ||
context.ExtensionFunctions.TryGetValue(name, out functionInfo);
}
@@ -429,7 +422,6 @@ namespace GitHub.Actions.Expressions
private sealed class ParseContext
{
public Boolean AllowUnknownKeywords;
public Boolean AllowCaseFunction;
public readonly String Expression;
public readonly Dictionary<String, IFunctionInfo> ExtensionFunctions = new Dictionary<String, IFunctionInfo>(StringComparer.OrdinalIgnoreCase);
public readonly Dictionary<String, INamedValueInfo> ExtensionNamedValues = new Dictionary<String, INamedValueInfo>(StringComparer.OrdinalIgnoreCase);
@@ -445,8 +437,7 @@ namespace GitHub.Actions.Expressions
ITraceWriter trace,
IEnumerable<INamedValueInfo> namedValues,
IEnumerable<IFunctionInfo> functions,
Boolean allowUnknownKeywords = false,
Boolean allowCaseFunction = true)
Boolean allowUnknownKeywords = false)
{
Expression = expression ?? String.Empty;
if (Expression.Length > ExpressionConstants.MaxLength)
@@ -467,7 +458,6 @@ namespace GitHub.Actions.Expressions
LexicalAnalyzer = new LexicalAnalyzer(Expression);
AllowUnknownKeywords = allowUnknownKeywords;
AllowCaseFunction = allowCaseFunction;
}
private class NoOperationTraceWriter : ITraceWriter

2
src/Sdk/WorkflowParser/Conversion/WorkflowTemplateConverter.cs
View File

@@ -1828,7 +1828,7 @@ namespace GitHub.Actions.WorkflowParser.Conversion
var node = default(ExpressionNode);
try
{
node = expressionParser.CreateTree(condition, null, namedValues, functions, allowCaseFunction: context.AllowCaseFunction) as ExpressionNode;
node = expressionParser.CreateTree(condition, null, namedValues, functions) as ExpressionNode;
}
catch (Exception ex)
{

8
src/Sdk/WorkflowParser/ObjectTemplating/TemplateContext.cs
View File

@@ -1,4 +1,4 @@
#nullable disable // Consider removing in the future to minimize likelihood of NullReferenceException; refer https://learn.microsoft.com/en-us/dotnet/csharp/nullable-references
#nullable disable // Consider removing in the future to minimize likelihood of NullReferenceException; refer https://learn.microsoft.com/en-us/dotnet/csharp/nullable-references
using System;
using System.Collections.Generic;
@@ -113,12 +113,6 @@ namespace GitHub.Actions.WorkflowParser.ObjectTemplating
/// </summary>
internal Boolean StrictJsonParsing { get; set; }
/// <summary>
/// Gets or sets a value indicating whether the case expression function is allowed.
/// Defaults to true. Set to false to disable the case function.
/// </summary>
internal Boolean AllowCaseFunction { get; set; } = true;
internal ITraceWriter TraceWriter { get; set; }
private IDictionary<String, Int32> FileIds

12
src/Sdk/WorkflowParser/ObjectTemplating/Tokens/TemplateToken.cs
View File

@@ -1,4 +1,4 @@
#nullable disable // Consider removing in the future to minimize likelihood of NullReferenceException; refer https://learn.microsoft.com/en-us/dotnet/csharp/nullable-references
#nullable disable // Consider removing in the future to minimize likelihood of NullReferenceException; refer https://learn.microsoft.com/en-us/dotnet/csharp/nullable-references
using System;
using System.Collections.Generic;
@@ -55,7 +55,7 @@ namespace GitHub.Actions.WorkflowParser.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,
@@ -93,7 +93,7 @@ namespace GitHub.Actions.WorkflowParser.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,
@@ -123,7 +123,7 @@ namespace GitHub.Actions.WorkflowParser.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,
@@ -153,7 +153,7 @@ namespace GitHub.Actions.WorkflowParser.ObjectTemplating.Tokens
var originalBytes = context.Memory.CurrentBytes;
try
{
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions, allowCaseFunction: context.AllowCaseFunction);
var tree = new ExpressionParser().CreateTree(expression, null, context.GetExpressionNamedValues(), context.ExpressionFunctions);
var options = new EvaluationOptions
{
MaxMemory = context.Memory.MaxBytes,
@@ -289,4 +289,4 @@ namespace GitHub.Actions.WorkflowParser.ObjectTemplating.Tokens
return result;
}
}
}
}

32
src/Test/L0/Sdk/ExpressionParserL0.cs
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@@ -1,4 +1,4 @@
using GitHub.DistributedTask.Expressions2;
using GitHub.DistributedTask.Expressions2;
using GitHub.DistributedTask.Expressions2.Sdk;
using GitHub.DistributedTask.ObjectTemplating;
using System;
@@ -9,7 +9,7 @@ namespace GitHub.Runner.Common.Tests.Sdk
{
/// <summary>
/// Regression tests for ExpressionParser.CreateTree to verify that
/// allowCaseFunction does not accidentally set allowUnknownKeywords.
/// the case function does not accidentally set allowUnknownKeywords.
/// </summary>
public sealed class ExpressionParserL0
{
@@ -18,7 +18,7 @@ namespace GitHub.Runner.Common.Tests.Sdk
[Trait("Category", "Sdk")]
public void CreateTree_RejectsUnrecognizedNamedValue()
{
// Regression: allowCaseFunction was passed positionally into
// Regression: the case function parameter was passed positionally into
// the allowUnknownKeywords parameter, causing all named values
// to be silently accepted.
var parser = new ExpressionParser();
@@ -52,7 +52,7 @@ namespace GitHub.Runner.Common.Tests.Sdk
[Fact]
[Trait("Level", "L0")]
[Trait("Category", "Sdk")]
public void CreateTree_CaseFunctionWorks_WhenAllowed()
public void CreateTree_CaseFunctionWorks()
{
var parser = new ExpressionParser();
var namedValues = new List<INamedValueInfo>
@@ -60,35 +60,17 @@ namespace GitHub.Runner.Common.Tests.Sdk
new NamedValueInfo<ContextValueNode>("github"),
};
var node = parser.CreateTree("case(github.event_name, 'push', 'Push Event')", null, namedValues, null, allowCaseFunction: true);
var node = parser.CreateTree("case(github.event_name, 'push', 'Push Event')", null, namedValues, null);
Assert.NotNull(node);
}
[Fact]
[Trait("Level", "L0")]
[Trait("Category", "Sdk")]
public void CreateTree_CaseFunctionRejected_WhenDisallowed()
{
var parser = new ExpressionParser();
var namedValues = new List<INamedValueInfo>
{
new NamedValueInfo<ContextValueNode>("github"),
};
var ex = Assert.Throws<ParseException>(() =>
parser.CreateTree("case(github.event_name, 'push', 'Push Event')", null, namedValues, null, allowCaseFunction: false));
Assert.Contains("Unrecognized function", ex.Message);
}
[Fact]
[Trait("Level", "L0")]
[Trait("Category", "Sdk")]
public void CreateTree_CaseFunctionDoesNotAffectUnknownKeywords()
{
// The key regression test: with allowCaseFunction=true (default),
// unrecognized named values must still be rejected.
// The key regression test: unrecognized named values must still be rejected.
var parser = new ExpressionParser();
var namedValues = new List<INamedValueInfo>
{
@@ -96,7 +78,7 @@ namespace GitHub.Runner.Common.Tests.Sdk
};
var ex = Assert.Throws<ParseException>(() =>
parser.CreateTree("github.ref", null, namedValues, null, allowCaseFunction: true));
parser.CreateTree("github.ref", null, namedValues, null));
Assert.Contains("Unrecognized named-value", ex.Message);
}

41
src/Test/L0/Worker/ActionManifestManagerL0.cs
View File

@@ -504,7 +504,7 @@ namespace GitHub.Runner.Common.Tests.Worker
}
}
[Fact]
[Fact]
[Trait("Level", "L0")]
[Trait("Category", "Worker")]
public void Load_Node24Action()
@@ -1006,6 +1006,45 @@ namespace GitHub.Runner.Common.Tests.Worker
_ec.Setup(x => x.AddIssue(It.IsAny<Issue>(), It.IsAny<ExecutionContextLogOptions>())).Callback((Issue issue, ExecutionContextLogOptions logOptions) => { _hc.GetTrace().Info($"[{issue.Type}]{logOptions.LogMessageOverride ?? issue.Message}"); });
}
[Fact]
[Trait("Level", "L0")]
[Trait("Category", "Worker")]
public void Evaluate_Default_Input_Case_Function()
{
try
{
//Arrange
Setup();
var actionManifest = new ActionManifestManager();
actionManifest.Initialize(_hc);
_ec.Object.ExpressionValues["github"] = new LegacyContextData.DictionaryContextData
{
{ "ref", new LegacyContextData.StringContextData("refs/heads/main") },
};
_ec.Object.ExpressionValues["strategy"] = new LegacyContextData.DictionaryContextData();
_ec.Object.ExpressionValues["matrix"] = new LegacyContextData.DictionaryContextData();
_ec.Object.ExpressionValues["steps"] = new LegacyContextData.DictionaryContextData();
_ec.Object.ExpressionValues["job"] = new LegacyContextData.DictionaryContextData();
_ec.Object.ExpressionValues["runner"] = new LegacyContextData.DictionaryContextData();
_ec.Object.ExpressionValues["env"] = new LegacyContextData.DictionaryContextData();
_ec.Object.ExpressionFunctions.Add(new LegacyExpressions.FunctionInfo<GitHub.Runner.Worker.Expressions.HashFilesFunction>("hashFiles", 1, 255));
// Act — evaluate a case() expression as a default input value.
// The feature flag is set, so this should succeed.
var token = new BasicExpressionToken(null, null, null, "case(true, 'matched', 'default')");
var result = actionManifest.EvaluateDefaultInput(_ec.Object, "testInput", token);
// Assert — case() should evaluate successfully
Assert.Equal("matched", result);
}
finally
{
Teardown();
}
}
private void Teardown()
{
_hc?.Dispose();