Hotfix/1.2.3

src/Microsoft.OpenApi.Readers/Microsoft.OpenApi.Readers.csproj

@@ -10,7 +10,7 @@
         <Company>Microsoft</Company>
         <Title>Microsoft.OpenApi.Readers</Title>
         <PackageId>Microsoft.OpenApi.Readers</PackageId>
-        <Version>1.2.2</Version>
+        <Version>1.2.3</Version>
         <Description>OpenAPI.NET Readers for JSON and YAML documents</Description>
         <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
         <PackageTags>OpenAPI .NET</PackageTags>

src/Microsoft.OpenApi.Readers/OpenApiTextReaderReader.cs

@@ -45,7 +45,7 @@ public OpenApiDocument Read(TextReader input, out OpenApiDiagnostic diagnostic)
             catch (YamlException ex)
             {
                 diagnostic = new OpenApiDiagnostic();
-                diagnostic.Errors.Add(new OpenApiError($"#char={ex.Start.Line}", ex.Message));
+                diagnostic.Errors.Add(new OpenApiError($"#line={ex.Start.Line}", ex.Message));
                 return new OpenApiDocument();
             }
 

src/Microsoft.OpenApi.Readers/Services/OpenApiReferenceResolver.cs

@@ -52,6 +52,7 @@ public override void Visit(OpenApiComponents components)
             ResolveMap(components.Examples);
             ResolveMap(components.Schemas);
             ResolveMap(components.SecuritySchemes);
+            ResolveMap(components.Headers);
         }
 
         public override void Visit(IDictionary<string, OpenApiCallback> callbacks)
@@ -99,6 +100,15 @@ public override void Visit(OpenApiResponses responses)
             ResolveMap(responses);
         }
 
+        /// <summary>
+        /// Resolve all references to headers
+        /// </summary>
+        /// <param name="headers"></param>
+        public override void Visit(IDictionary<string, OpenApiHeader> headers)
+        {
+            ResolveMap(headers);
+        }
+
         /// <summary>
         /// Resolve all references to SecuritySchemes
         /// </summary>

src/Microsoft.OpenApi.Readers/V2/OpenApiOperationDeserializer.cs

@@ -3,6 +3,7 @@
 
 using System.Collections.Generic;
 using System.Linq;
+using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Readers.ParseNodes;
@@ -164,6 +165,7 @@ private static OpenApiRequestBody CreateFormBody(ParsingContext context, List<Op
                         {
                             var schema = v.Schema;
                             schema.Description = v.Description;
+                            schema.Extensions = v.Extensions;
                             return schema;
                         }),
                     Required = new HashSet<string>(formParameters.Where(p => p.Required).Select(p => p.Name))
@@ -201,9 +203,11 @@ internal static OpenApiRequestBody CreateRequestBody(
                     v => new OpenApiMediaType
                     {
                         Schema = bodyParameter.Schema
-                    })
+                    }),
+                Extensions = bodyParameter.Extensions
             };
 
+            requestBody.Extensions[OpenApiConstants.BodyName] = new OpenApiString(bodyParameter.Name);
             return requestBody;
         }
 

src/Microsoft.OpenApi/Microsoft.OpenApi.csproj

@@ -10,7 +10,7 @@
         <Company>Microsoft</Company>
         <Title>Microsoft.OpenApi</Title>
         <PackageId>Microsoft.OpenApi</PackageId>
-        <Version>1.2.2</Version>
+        <Version>1.2.3</Version>
         <Description>.NET models with JSON and YAML writers for OpenAPI specification</Description>
         <Copyright>© Microsoft Corporation. All rights reserved.</Copyright>
         <PackageTags>OpenAPI .NET</PackageTags>

src/Microsoft.OpenApi/Models/OpenApiConstants.cs

@@ -560,6 +560,11 @@ public static class OpenApiConstants
         /// </summary>
         public const string DefaultDescription = "Default Description";
 
+        /// <summary>
+        /// Field: BodyName extensions
+        /// </summary>
+        public const string BodyName = "x-bodyName";
+
         /// <summary>
         /// Field: version3_0_0
         /// </summary>

src/Microsoft.OpenApi/Models/OpenApiOperation.cs

@@ -228,29 +228,44 @@ public void SerializeAsV2(IOpenApiWriter writer)
                 {
                     foreach (var property in RequestBody.Content.First().Value.Schema.Properties)
                     {
+                        var paramName = property.Key;
+                        var paramSchema = property.Value;
+                        if (paramSchema.Type == "string" && paramSchema.Format == "binary") {
+                            paramSchema.Type = "file";
+                            paramSchema.Format = null;
+                        }
                         parameters.Add(
                             new OpenApiFormDataParameter
                             {
                                 Description = property.Value.Description,
                                 Name = property.Key,
                                 Schema = property.Value,
                                 Required = RequestBody.Content.First().Value.Schema.Required.Contains(property.Key)
+
                             });
                     }
                 }
                 else
                 {
                     var content = RequestBody.Content.Values.FirstOrDefault();
+
                     var bodyParameter = new OpenApiBodyParameter
                     {
                         Description = RequestBody.Description,
                         // V2 spec actually allows the body to have custom name.
-                        // Our library does not support this at the moment.
+                        // To allow round-tripping we use an extension to hold the name
                         Name = "body",
                         Schema = content?.Schema ?? new OpenApiSchema(),
-                        Required = RequestBody.Required
+                        Required = RequestBody.Required,
+                        Extensions = RequestBody.Extensions.ToDictionary(k => k.Key, v => v.Value)  // Clone extensions so we can remove the x-bodyName extensions from the output V2 model.
                     };
 
+                    if (bodyParameter.Extensions.ContainsKey(OpenApiConstants.BodyName))
+                    {
+                        bodyParameter.Name = (RequestBody.Extensions[OpenApiConstants.BodyName] as OpenApiString)?.Value ?? "body";
+                        bodyParameter.Extensions.Remove(OpenApiConstants.BodyName);
+                    }
+
                     parameters.Add(bodyParameter);
                 }
             }

test/Microsoft.OpenApi.Readers.Tests/Microsoft.OpenApi.Readers.Tests.csproj

@@ -150,6 +150,7 @@
         <CopyToOutputDirectory>Never</CopyToOutputDirectory>
       </EmbeddedResource>
       <EmbeddedResource Include="V3Tests\Samples\OpenApiExample\explicitString.yaml" />
+      <EmbeddedResource Include="V3Tests\Samples\OpenApiResponse\responseWithHeaderReference.yaml" />
       <EmbeddedResource Include="V3Tests\Samples\OpenApiInfo\basicInfo.yaml">
         <CopyToOutputDirectory>Never</CopyToOutputDirectory>
       </EmbeddedResource>

test/Microsoft.OpenApi.Readers.Tests/V2Tests/OpenApiOperationTests.cs

@@ -7,6 +7,7 @@
 using FluentAssertions;
 using Microsoft.OpenApi.Any;
 using Microsoft.OpenApi.Extensions;
+using Microsoft.OpenApi.Interfaces;
 using Microsoft.OpenApi.Models;
 using Microsoft.OpenApi.Readers.ParseNodes;
 using Microsoft.OpenApi.Readers.V2;
@@ -180,6 +181,9 @@ public class OpenApiOperationTests
                             Type = "object"
                         }
                     }
+                },
+                Extensions = { 
+                    [OpenApiConstants.BodyName] = new OpenApiString("petObject") 
                 }
             },
             Responses = new OpenApiResponses

test/Microsoft.OpenApi.Readers.Tests/V3Tests/OpenApiResponseTests.cs

@@ -0,0 +1,33 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT license.
+
+using System.IO;
+using System.Linq;
+using FluentAssertions;
+using Microsoft.OpenApi.Any;
+using Microsoft.OpenApi.Models;
+using Microsoft.OpenApi.Readers.ParseNodes;
+using Microsoft.OpenApi.Readers.V3;
+using Xunit;
+
+namespace Microsoft.OpenApi.Readers.Tests.V3Tests
+{
+    [Collection("DefaultSettings")]
+    public class OpenApiResponseTests
+    {
+        private const string SampleFolderPath = "V3Tests/Samples/OpenApiResponse/";
+
+        [Fact]
+        public void ResponseWithReferencedHeaderShouldReferenceComponent()
+        {
+            using (var stream = Resources.GetStream(Path.Combine(SampleFolderPath, "responseWithHeaderReference.yaml")))
+            {
+                var openApiDoc = new OpenApiStreamReader().Read(stream, out var diagnostic);
+
+                var response = openApiDoc.Components.Responses["Test"];
+
+                Assert.Same(response.Headers.First().Value, openApiDoc.Components.Headers.First().Value);
+            }
+        }
+    }
+}

test/Microsoft.OpenApi.Readers.Tests/V3Tests/Samples/OpenApiResponse/responseWithHeaderReference.yaml

@@ -0,0 +1,16 @@
+openapi: 3.0.0
+info:
+  title: Example of response referencing a header
+  version: 1.0.0
+components:
+  headers:
+    X-Test:
+      description: Test
+      schema:
+        type: string
+  responses:
+    Test:
+      description: Test Repsonse
+      headers:
+        X-Test:
+          $ref: '#/components/headers/X-Test'