/// <summary>
/// Parses header field from the specified value.
/// </summary>
/// <param name="value">Header field value. Header field name must be included. For example: 'Content-Type: text/plain'.</param>
/// <returns>Returns parsed header field.</returns>
/// <exception cref="ArgumentNullException">Is raised when <b>value</b> is null reference.</exception>
/// <exception cref="ParseException">Is raised when header field parsing errors.</exception>
public static MIME_h_ContentDisposition Parse(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
// We should not have encoded words here, but some email clients do this, so encoded them if any.
string valueDecoded = MIME_Encoding_EncodedWord.DecodeS(value);
MIME_h_ContentDisposition retVal = new MIME_h_ContentDisposition();
string[] name_value = valueDecoded.Split(new char[] { ':' }, 2);
if (name_value.Length != 2)
{
throw new ParseException("Invalid Content-Type: header field value '" + value + "'.");
}
MIME_Reader r = new MIME_Reader(name_value[1]);
string type = r.Token();
if (type == null)
{
throw new ParseException("Invalid Content-Disposition: header field value '" + value + "'.");
}
retVal.m_DispositionType = type.Trim();
retVal.m_pParameters.Parse(r);
retVal.m_ParseValue = value;
return(retVal);
}
/// <summary>
/// Parses header field from the specified value.
/// </summary>
/// <param name="value">Header field value. Header field name must be included. For example: 'Content-Type: text/plain'.</param>
/// <returns>Returns parsed header field.</returns>
/// <exception cref="ArgumentNullException">Is raised when <b>value</b> is null reference.</exception>
/// <exception cref="ParseException">Is raised when header field parsing errors.</exception>
public static MIME_h_ContentType Parse(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
// We should not have encoded words here, but some email clients do this, so encoded them if any.
string valueDecoded = MIME_Encoding_EncodedWord.DecodeS(value);
MIME_h_ContentType retVal = new MIME_h_ContentType();
string[] name_value = valueDecoded.Split(new char[] { ':' }, 2);
if (name_value.Length != 2)
{
throw new ParseException("Invalid Content-Type: header field value '" + value + "'.");
}
MIME_Reader r = new MIME_Reader(name_value[1]);
string type = r.Token();
if (type == null)
{
throw new ParseException("Invalid Content-Type: header field value '" + value + "'.");
}
retVal.m_Type = type;
if (r.Char(false) != '/')
{
throw new ParseException("Invalid Content-Type: header field value '" + value + "'.");
}
string subtype = r.Token();
if (subtype == null)
{
throw new ParseException("Invalid Content-Type: header field value '" + value + "'.");
}
retVal.m_SubType = subtype;
if (r.Available > 0)
{
retVal.m_pParameters.Parse(r);
}
retVal.m_ParseValue = value;
retVal.m_IsModified = false;
return(retVal);
}
/// <summary>
/// Parses header field from the specified value.
/// </summary>
/// <param name="value">Header field value. Header field name must be included. For example: 'Content-Type: text/plain'.</param>
/// <returns>Returns parsed header field.</returns>
/// <exception cref="ArgumentNullException">Is raised when <b>value</b> is null reference.</exception>
/// <exception cref="ParseException">Is raised when header field parsing errors.</exception>
public static MIME_h_Unstructured Parse(string value)
{
if (value == null)
{
throw new ArgumentNullException("value");
}
MIME_h_Unstructured retVal = new MIME_h_Unstructured();
string[] name_value = value.Split(new char[] { ':' }, 2);
if (name_value[0].Trim() == string.Empty)
{
throw new ParseException("Invalid header field '" + value + "' syntax.");
}
retVal.m_Name = name_value[0];
retVal.m_Value = MIME_Encoding_EncodedWord.DecodeS(MIME_Utils.UnfoldHeader(name_value.Length == 2 ? name_value[1].TrimStart() : ""));
retVal.m_ParseValue = value;
return(retVal);
}
/// <summary>
/// Parses parameters from the specified reader.
/// </summary>
/// <param name="reader">MIME reader.</param>
/// <exception cref="ArgumentNullException">Is raised when <b>reader</b> is null reference.</exception>
public void Parse(MIME_Reader reader)
{
if (reader == null)
{
throw new ArgumentNullException("reader");
}
/* RFC 2231.
*/
while (true)
{
// End os stream reached.
if (reader.Peek(true) == -1)
{
break;
}
// Next parameter start, just eat that char.
else if (reader.Peek(true) == ';')
{
reader.Char(false);
}
else
{
string name = reader.Token();
string value = "";
// Parameter value specified.
if (reader.Peek(true) == '=')
{
reader.Char(false);
string v = reader.Word();
// Normally value may not be null, but following case: paramName=EOS.
if (v != null)
{
value = v;
}
}
// RFC 2231 encoded/splitted parameter.
if (name.IndexOf('*') > -1)
{
string[] name_x_no_x = name.Split('*');
name = name_x_no_x[0];
Encoding charset = Encoding.ASCII;
StringBuilder valueBuffer = new StringBuilder();
// We must have charset'language'value.
// Examples:
// URL*=utf-8''test;
// URL*0*=utf-8''"test";
if ((name_x_no_x.Length == 2 && name_x_no_x[1] == "") || name_x_no_x.Length == 3)
{
string[] charset_language_value = value.Split('\'');
charset = Encoding.GetEncoding(charset_language_value[0]);
valueBuffer.Append(DecodeExtOctet(charset_language_value[2], charset));
}
// No encoding, probably just splitted ASCII value.
// Example:
// URL*0="value1";
// URL*1="value2";
else
{
valueBuffer.Append(value);
}
// Read while value continues.
while (true)
{
// End os stream reached.
if (reader.Peek(true) == -1)
{
break;
}
// Next parameter start, just eat that char.
else if (reader.Peek(true) == ';')
{
reader.Char(false);
}
else
{
if (!reader.StartsWith(name + "*"))
{
break;
}
reader.Token();
// Parameter value specified.
if (reader.Peek(true) == '=')
{
reader.Char(false);
string v = reader.Word();
// Normally value may not be null, but following case: paramName=EOS.
if (v != null)
{
valueBuffer.Append(DecodeExtOctet(v, charset));
}
}
}
}
this[name] = valueBuffer.ToString();
}
// Regular parameter.
else
{
this[name] = MIME_Encoding_EncodedWord.DecodeS(value);
}
}
}
m_IsModified = false;
}
