private string GetHeader(Field field)
{
if (field.type == FieldType.End)
return string.Format("--{0}--", _boundary);
if (field.type == FieldType.Spacer)
return "\r\n";
var str = new StringBuilder();
str.AppendFormat("--{0}", _boundary);
str.Append(NewLine);
str.AppendFormat(@"Content-Disposition: form-data; name=""{0}""", field.name);
if (field.type == FieldType.File)
str.AppendFormat(@"; filename=""{0}""", Path.GetFileName(field.fileName));
str.Append(NewLine);
if (field.type == FieldType.File)
{
if (string.IsNullOrWhiteSpace(field.contentType))
field.contentType = "application/octet-stream";
}
str.AppendFormat(@"Content-Type: {0}", field.contentType);
str.Append(NewLine);
str.Append(NewLine);
return str.ToString();
}
private void PreProcessField(Field field)
{
if (field.type == FieldType.File)
{
if (field.stream == null)
field.stream = File.OpenRead(field.fileName);
}
else if (field.type == FieldType.Text || field.type == FieldType.End || field.type == FieldType.Spacer)
{
if (field.stream == null)
field.stream = new MemoryStream(Encoding.UTF8.GetBytes(field.value));
}
if (field.header == null)
{
field.header = GetHeader(field);
field.headerBytes = Encoding.ASCII.GetBytes(field.header);
}
}
public object Clone()
{
var field = new Field();
field.name = name;
field.type = type;
field.fileName = fileName;
field.contentType = contentType;
field.value = value;
return field;
}