public override void SetDefaultContentHeaders(Type type,
HttpContentHeaders headers,
MediaTypeHeaderValue mediaType)
{
string fileName = "data";
// Look for ExcelDocumentAttribute on class.
var itemType = FormatterUtils.GetEnumerableItemType(type);
var excelDocumentAttribute = FormatterUtils.GetAttribute <ExcelDocumentAttribute>(itemType ?? type);
if (excelDocumentAttribute != null && !string.IsNullOrEmpty(excelDocumentAttribute.FileName))
{
// If attribute exists with file name defined, use that.
fileName = excelDocumentAttribute.FileName;
}
else
{
// Get the raw request URI.
string rawUri = _httpContextAccessor.HttpContext?.Request?.GetDisplayUrl();
if (string.IsNullOrEmpty(rawUri) != false)
{
// Remove query string if present.
int queryStringIndex = rawUri.IndexOf('?');
if (queryStringIndex > -1)
{
rawUri = rawUri.Substring(0, queryStringIndex);
}
}
// Otherwise, use either the URL file name component or just "data".
fileName = Path.GetFileName(_httpContextAccessor.HttpContext?.Request?.Path) ?? "data";
}
// Add XLSX extension if not present.
if (string.IsNullOrEmpty(_fileExtension))
{
if (!fileName.EndsWith("xlsm", StringComparison.CurrentCultureIgnoreCase))
{
fileName += ".xlsm";
}
}
else
{
if (!fileName.EndsWith(string.Format(".{0}", _fileExtension), StringComparison.CurrentCultureIgnoreCase))
{
fileName += string.Format(".{0}", _fileExtension);
}
}
// Set content disposition to use this file name.
headers.ContentDisposition = new ContentDispositionHeaderValue("inline")
{
FileName = fileName
};
base.SetDefaultContentHeaders(type, headers, mediaType);
}
public override Task WriteToStreamAsync(Type type,
object value,
Stream writeStream,
System.Net.Http.HttpContent content,
System.Net.TransportContext transportContext)
{
// Create a document builder.
var document = new SqadXlsxDocumentBuilder(writeStream);
if (value == null)
{
return(document.WriteToStream());
}
var valueType = value.GetType();
// Get the item type.
var itemType = FormatterUtils.IsSimpleType(valueType)
? null
: FormatterUtils.GetEnumerableItemType(valueType);
// If a single object was passed, treat it like a list with one value.
if (itemType == null)
{
itemType = valueType;
}
// Used if no other matching serialiser can be found.
IXlsxSerializer serializer = null;
// Determine if a more specific serialiser might apply.
if (Serializers != null)
{
foreach (var s in Serializers)
{
if (!s.CanSerializeType(valueType, itemType) || s.SerializerType != _serializerType)
{
continue;
}
serializer = s;
break;
}
}
serializer?.Serialize(itemType, value, document, null, null, null);
if (!document.IsVBA)
{
content.Headers.ContentDisposition.FileName =
content.Headers.ContentDisposition.FileName.Replace("xlsm", "xlsx");
}
return(document.WriteToStream());
}
