/// <summary>
/// Creates a new instance of <see cref="MultipartFormXmlDeserializer"/> using specified form data item <paramref name="multipartFormDataItem"/>
/// </summary>
/// <param name="multipartFormDataItem">Multi-part form data item</param>
public MultipartFormXmlDeserializer(MultipartFormDataItem multipartFormDataItem)
{
if (multipartFormDataItem == null)
{
throw new ArgumentNullException("multipartFormDataItem");
}
_decoder = ContentDecoderFactory.CreateTextDecoder(multipartFormDataItem);
}
/// <summary>
/// Finds and creates instance of a type which implements <see cref="IContentDecoder{TClrType}"/> interface for specific Content-Type in <paramref name="multipartFormDataItem"/>
/// </summary>
/// <typeparam name="TClrType">Managed type into which decoding should be perfomed</typeparam>
/// <param name="multipartFormDataItem">Multi-part form data item</param>
/// <returns>Instance of a type which decodes form content into type <see cref="TClrType"/> or null, if such not found</returns>
public static IContentDecoder <TClrType> FindAndCreateInstance <TClrType>(MultipartFormDataItem multipartFormDataItem)
{
lock (_lock)
{
var type = FindType <TClrType>(multipartFormDataItem.ContentType);
if (type == null)
{
return(null);
}
var ctors = ReflectionHelper.GetConstructors(type);
if (ctors.Any(c => c.Parameters.Any(p => p.ParameterType == typeof(MultipartFormDataItem))))
{
return((IContentDecoder <TClrType>)Activator.CreateInstance(type, multipartFormDataItem));
}
else
{
var inst = (IContentDecoder <TClrType>)Activator.CreateInstance(type);
inst.MultipartFormDataItem = multipartFormDataItem;
return(inst);
}
}
}
/// <summary>
/// Creates image decoder for the form data with content base type "image" and returns <see cref="System.Drawing.Image"/>
/// </summary>
/// <param name="multipartFormDataItem">Multi-part form data item</param>
/// <returns><see cref="ImageContentDecoder"/> decoder</returns>
public static ImageContentDecoder CreateImageContentDecoder(MultipartFormDataItem multipartFormDataItem)
{
return(new ImageContentDecoder(multipartFormDataItem));
}
/// <summary>
/// Creates common text decoder for any content, which can be represented as text data and returns string
/// </summary>
/// <param name="multipartFormDataItem">Multi-part form data item</param>
/// <returns>String content decoder</returns>
public static IContentDecoder <string> CreateTextDecoder(MultipartFormDataItem multipartFormDataItem)
{
return(new TextContentDecoder(multipartFormDataItem));
}
/// <summary>
/// Creates common binary decoder for any content, which is binary by nature and returns byte array
/// </summary>
/// <param name="multipartFormDataItem">Multi-part form data item</param>
/// <returns>Binary content decoder</returns>
public static IContentDecoder <byte[]> CreateBinaryDecoder(MultipartFormDataItem multipartFormDataItem)
{
return(new BinaryContentDecoder(multipartFormDataItem));
}
/// <summary>
/// Creates a new instance of <see cref="MultipartFormXmlDeserializer"/> using specified form data item <paramref name="multipartFormDataItem"/> and text content decoder <paramref name="textContentDecoder"/> (instead of default)
/// </summary>
/// <param name="multipartFormDataItem"></param>
/// <param name="textContentDecoder"></param>
public MultipartFormXmlDeserializer(MultipartFormDataItem multipartFormDataItem, IContentDecoder <string> textContentDecoder)
{
_multipartFormDataItem = multipartFormDataItem;
_decoder = textContentDecoder;
}
public abstract IEnumerable <T> Decode(MultipartFormDataItem multipartFormDataItem);
private MultipartFormData ParseWithBoundary(string boundary, StreamLineReader reader)
{
IList <MultipartFormDataItem> content = new List <MultipartFormDataItem>(10);
MultipartFormDataItem item = new MultipartFormDataItem();
bool found = false;
reader.Read((c, bytes) =>
{
string line = Encoding.ASCII.GetString(bytes);
if (line.StartsWith("Content-Disposition:"))
{
if (!line.Contains("form-data"))
{
throw new MultiPartFormParsingException("The stream is not multi-part form data");
}
var nameMatch = _nameRegex.Match(line);
var filenameMatch = _filenameRegex.Match(line);
if (nameMatch.Success)
{
item.Name = nameMatch.Value;
}
if (filenameMatch.Success)
{
item.Filename = filenameMatch.Value;
}
found = true;
}
else if (line.StartsWith("Content-Type:"))
{
var contentTypeMatch = _contentTypeRegex.Match(line);
if (contentTypeMatch.Success)
{
item.ContentType = contentTypeMatch.Value.Trim();
}
var charsetMatch = _charsetRegex.Match(line);
if (charsetMatch.Success)
{
item.Charset = charsetMatch.Value.Trim();
}
}
else if (line.StartsWith("Content-Transfer-Encoding:"))
{
var contentTransferEncodingMatch = _contentTransferEncoding.Match(line);
if (contentTransferEncodingMatch.Success)
{
item.ContentTransferEncoding = contentTransferEncodingMatch.Value.Trim();
}
}
else if (found && string.IsNullOrWhiteSpace(line))
{
item.Content = ReadToNextBoundary(boundary, reader);
content.Add(item);
item = new MultipartFormDataItem();
found = false;
}
return(true);
});
return(new MultipartFormData()
{
Content = content.ToArray()
});
}
/// <summary>
/// Finds and creates instance of a type which implements <see cref="IContentTransferDecoder{TEnumeration}"/> interface for specific Content-Transfer-Encoding in <paramref name="multipartFormDataItem"/>
/// </summary>
/// <typeparam name="TEnumeration">Enumeration of type into which decoding should be perfomed</typeparam>
/// <param name="multipartFormDataItem">Multi-part form data item</param>
/// <returns>Instance of a type which decodes form content into enumerable of <see cref="TEnumeration"/> or null, if such not found</returns>
public static IContentTransferDecoder <TEnumeration> FindAndCreateInstance <TEnumeration>(MultipartFormDataItem multipartFormDataItem)
{
if (multipartFormDataItem == null)
{
throw new ArgumentNullException("multipartFormDataItem");
}
var type = FindType <TEnumeration>(multipartFormDataItem.ContentTransferEncoding);
if (type == null)
{
return(null);
}
//if (type != typeof(IContentTransferDecoder<TEnumeration>)) throw new Exception();
return((IContentTransferDecoder <TEnumeration>)Activator.CreateInstance(type));
}
