public bool Build(TransformBuilderContext context, IReadOnlyDictionary <string, string> transformValues)
{
if (transformValues.TryGetValue(ResponseHeadersCopyKey, out var copyHeaders))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 1);
context.CopyResponseHeaders = bool.Parse(copyHeaders);
}
else if (transformValues.TryGetValue(ResponseTrailersCopyKey, out copyHeaders))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 1);
context.CopyResponseTrailers = bool.Parse(copyHeaders);
}
else if (transformValues.TryGetValue(ResponseHeaderKey, out var responseHeaderName))
{
var always = false;
if (transformValues.TryGetValue(WhenKey, out var whenValue))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 3);
always = string.Equals(AlwaysValue, whenValue, StringComparison.OrdinalIgnoreCase);
}
else
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 2);
}
if (transformValues.TryGetValue(SetKey, out var setValue))
{
context.AddResponseHeader(responseHeaderName, setValue, append: false, always);
}
else if (transformValues.TryGetValue(AppendKey, out var appendValue))
{
context.AddResponseHeader(responseHeaderName, appendValue, append: true, always);
}
else
{
throw new ArgumentException($"Unexpected parameters for ResponseHeader: {string.Join(';', transformValues.Keys)}. Expected 'Set' or 'Append'");
}
}
else if (transformValues.TryGetValue(ResponseTrailerKey, out var responseTrailerName))
{
var always = false;
if (transformValues.TryGetValue(WhenKey, out var whenValue))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 3);
always = string.Equals(AlwaysValue, whenValue, StringComparison.OrdinalIgnoreCase);
}
else
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 2);
}
if (transformValues.TryGetValue(SetKey, out var setValue))
{
context.AddResponseTrailer(responseTrailerName, setValue, append: false, always);
}
else if (transformValues.TryGetValue(AppendKey, out var appendValue))
{
context.AddResponseTrailer(responseTrailerName, appendValue, append: true, always);
}
else
{
throw new ArgumentException($"Unexpected parameters for ResponseTrailer: {string.Join(';', transformValues.Keys)}. Expected 'Set' or 'Append'");
}
}
else if (transformValues.TryGetValue(ResponseHeaderRemoveKey, out var removeResponseHeaderName))
{
var always = false;
if (transformValues.TryGetValue(WhenKey, out var whenValue))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 2);
always = string.Equals(AlwaysValue, whenValue, StringComparison.OrdinalIgnoreCase);
}
else
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 1);
}
context.AddResponseHeaderRemove(removeResponseHeaderName, always);
}
else if (transformValues.TryGetValue(ResponseTrailerRemoveKey, out var removeResponseTrailerName))
{
var always = false;
if (transformValues.TryGetValue(WhenKey, out var whenValue))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 2);
always = string.Equals(AlwaysValue, whenValue, StringComparison.OrdinalIgnoreCase);
}
else
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 1);
}
context.AddResponseTrailerRemove(removeResponseTrailerName, always);
}
else if (transformValues.TryGetValue(ResponseHeadersAllowedKey, out var allowedHeaders))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 1);
var headersList = allowedHeaders.Split(';', options: StringSplitOptions.RemoveEmptyEntries
#if NET
| StringSplitOptions.TrimEntries
#endif
);
context.AddResponseHeadersAllowed(headersList);
}
else if (transformValues.TryGetValue(ResponseTrailersAllowedKey, out var allowedTrailers))
{
TransformHelpers.CheckTooManyParameters(transformValues, expected: 1);
var headersList = allowedTrailers.Split(';', options: StringSplitOptions.RemoveEmptyEntries
#if NET
| StringSplitOptions.TrimEntries
#endif
);
context.AddResponseTrailersAllowed(headersList);
}
else
{
return(false);
}
return(true);
}