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using Microsoft.OpenApi;
using Swashbuckle.AspNetCore.SwaggerGen;
namespace Jellyfin.Server.Filters;
/// <summary>
/// Document filter that fixes security scheme references after document generation.
/// </summary>
/// <remarks>
/// In Microsoft.OpenApi v2, <see cref="OpenApiSecuritySchemeReference"/> requires a resolved
/// <c>Target</c> to serialize correctly. References created without a host document (as in
/// operation filters) serialize as empty objects. This filter re-creates all security scheme
/// references with the document context so they resolve properly during serialization.
/// </remarks>
internal class SecuritySchemeReferenceFixupFilter : IDocumentFilter
{
/// <inheritdoc />
public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
{
swaggerDoc.RegisterComponents();
if (swaggerDoc.Paths is null)
{
return;
}
foreach (var pathItem in swaggerDoc.Paths.Values)
{
if (pathItem.Operations is null)
{
continue;
}
foreach (var operation in pathItem.Operations.Values)
{
if (operation.Security is null)
{
continue;
}
for (int i = 0; i < operation.Security.Count; i++)
{
var oldReq = operation.Security[i];
var newReq = new OpenApiSecurityRequirement();
foreach (var kvp in oldReq)
{
var fixedRef = new OpenApiSecuritySchemeReference(kvp.Key.Reference.Id!, swaggerDoc);
newReq[fixedRef] = kvp.Value;
}
operation.Security[i] = newReq;
}
}
}
}
}
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