public void UnixAndMacCRLF()
{
QPEncoder qpencoder = QPEncoder.GetInstance();
Assert.AreEqual("123\r\n456\r\n789", qpencoder.EncodeString("123\r456\r789\r", System.Text.Encoding.GetEncoding("iso-8859-1")));
Assert.AreEqual("123\r\n456\r\n789", qpencoder.EncodeString("123\n456\n789\n", System.Text.Encoding.GetEncoding("iso-8859-1")));
}
public void EndOfLineSpacesTest()
{
QPEncoder qpencoder = QPEncoder.GetInstance();
Assert.AreEqual("123 456 7890=20=20=20=20=20", qpencoder.EncodeString("123 456 7890 ", System.Text.Encoding.GetEncoding("iso-8859-1")));
Assert.AreEqual("=20=20=20=20=20", qpencoder.EncodeString(" ", System.Text.Encoding.GetEncoding("iso-8859-1")));
Assert.AreEqual("123456789 123456789 123456789 123456789 123456789 123456789 123456789 123456=\r\n7890=20=20=20", qpencoder.EncodeString("123456789 123456789 123456789 123456789 123456789 123456789 123456789 1234567890 ", System.Text.Encoding.GetEncoding("iso-8859-1")));
Assert.AreEqual("123456789 123456789 123456789 123456789 123456789 123456789 123456789=\r\n=20=20=20=20=20=20=20=20=20=20=20", qpencoder.EncodeString("123456789 123456789 123456789 123456789 123456789 123456789 123456789 ", System.Text.Encoding.GetEncoding("iso-8859-1")));
Assert.AreEqual("123456789 123456789 123456789 123456789 123456789 123456789 123456789=\r\n=09=09=09=09=09=09=09=09=09=09=09", qpencoder.EncodeString("123456789 123456789 123456789 123456789 123456789 123456789 123456789 ", System.Text.Encoding.GetEncoding("iso-8859-1")));
}
public void SimpleTest()
{
//String setofchars=Get256Chars();
String setofchars = "" + (char)0x01 + (char)0x02;
QPEncoder qpencoder = QPEncoder.GetInstance();
StringReader sr = new StringReader(setofchars);
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
qpencoder.Encode(sr, sw, System.Text.Encoding.GetEncoding("iso-8859-1"));
Assert.AreEqual("=01=02", sb.ToString());
}
public void HeaderEncodingTest()
{
QPEncoder qpencoder = QPEncoder.GetInstance();
Assert.AreEqual("=?iso-8859-1?Q?hello=F8=E6=F4?=", qpencoder.EncodeHeaderString("Test", "helloøæô", System.Text.Encoding.GetEncoding("iso-8859-1"), false));
Assert.AreEqual("=?iso-8859-1?Q?hello=20there=20=F8=E6=F4?=", qpencoder.EncodeHeaderString("Test", "hello there øæô", System.Text.Encoding.GetEncoding("iso-8859-1"), false));
Assert.AreEqual("hello there", qpencoder.EncodeHeaderString("Test", "hello there", System.Text.Encoding.GetEncoding("iso-8859-1"), false));
Assert.AreEqual("=?iso-8859-1?Q?hello=20there?=", qpencoder.EncodeHeaderString("Test", "hello there", System.Text.Encoding.GetEncoding("iso-8859-1"), true));
Assert.AreEqual("=?iso-8859-1?Q?TSpecials=20Equals=20=3D=20QuestionMark=3FEnd?=", qpencoder.EncodeHeaderString("Test", "TSpecials Equals = QuestionMark?End", System.Text.Encoding.GetEncoding("iso-8859-1"), true));
Assert.AreEqual("=?iso-8859-1?Q?en=20to,=20sn=F8r=20min=20sko,=20tre=20fire=20kom=20E?=\r\n\t=?iso-8859-1?Q?lvire,=20fem=20seks=20tegn=20en=20heks,=20sju=20=E5tte?=\r\n\t=?iso-8859-1?Q?=20ris=20til=20en=20rotte?=", qpencoder.EncodeHeaderString("Test", "en to, snør min sko, tre fire kom Elvire, fem seks tegn en heks, sju åtte ris til en rotte",
System.Text.Encoding.GetEncoding("iso-8859-1"), true));
Assert.AreEqual("=?koi8-r?Q?n=CE=C5=D3=CB=CF=CC=D8=CB=CF=20=D3=D4=D2=CF=CB=20=D0=CF?=\r\n\t=?koi8-r?Q?=20=D2=D5=D3=D3=CB=C9=3F?=", qpencoder.EncodeHeaderString("Test", "nнесколько строк по русски?", System.Text.Encoding.GetEncoding("koi8-r"), true));
}
public void LineLengthTest()
{
String line = "12345678901234567890123456789012345678901234567890123456789012345678901234567890";
String expectedresult = "1234567890123456789012345678901234567890123456789012345678901234567890123456=\r\n7890";
QPEncoder qpencoder = QPEncoder.GetInstance();
StringReader sr = new StringReader(line);
StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
qpencoder.Encode(sr, sw, System.Text.Encoding.GetEncoding("iso-8859-1"));
Assert.AreEqual(expectedresult, sb.ToString());
Assert.AreEqual(expectedresult, qpencoder.EncodeString(line, System.Text.Encoding.GetEncoding("iso-8859-1")));
}
public void Test256Chars()
{
QPEncoder qpencoder = QPEncoder.GetInstance();
String expected = "=00=01=02=03=04=05=06=07=08=09\r\n" +
"=0B=0C\r\n" +
"=0E=0F=10=11=12=13=14=15=16=17=18=19=1A=1B=1C=1D=1E=1F !\"#$%&'()*+,-./012345=\r\n" +
"6789:;<=3D>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~=\r\n" +
"=7F=80=81=82=83=84=85=86=87=88=89=8A=8B=8C=8D=8E=8F=90=91=92=93=94=95=96=97=98=\r\n" +
"=99=9A=9B=9C=9D=9E=9F=A0=A1=A2=A3=A4=A5=A6=A7=A8=A9=AA=AB=AC=AD=AE=AF=B0=B1=B2=\r\n" +
"=B3=B4=B5=B6=B7=B8=B9=BA=BB=BC=BD=BE=BF=C0=C1=C2=C3=C4=C5=C6=C7=C8=C9=CA=CB=CC=\r\n" +
"=CD=CE=CF=D0=D1=D2=D3=D4=D5=D6=D7=D8=D9=DA=DB=DC=DD=DE=DF=E0=E1=E2=E3=E4=E5=E6=\r\n" +
"=E7=E8=E9=EA=EB=EC=ED=EE=EF=F0=F1=F2=F3=F4=F5=F6=F7=F8=F9=FA=FB=FC=FD=FE=FF";
Assert.AreEqual(256, Get256Chars().Length);
Assert.AreEqual(expected, qpencoder.EncodeString(Get256Chars(), System.Text.Encoding.GetEncoding("iso-8859-1")));
}
/// <summary>
/// Decodes a "Mime word" encoded string
/// </summary>
/// <param name="code">A mime word encoded string</param>
/// <returns>The decoded string</returns>
/// <example>
/// <code>
/// MimeWordDecoder dec = new MimeWordDecoder ();
///
/// String subject = dec.DecodeWord ("=?iso-8859-1?q?Youpi=20it=20work?=");
/// Console.Out.Writeline (subject);
/// </code>
/// Output:
/// Youpi it work
/// </example>
public static string DecodeWord(string code)
{
Regex r = new Regex(@"=\?(.*)\?([bqBQ])\?(.*)\?=");
Match m = r.Match(code);
if (!m.Success)
{
return(code); // this is not a "Mime Word" encoded text
}
string CharsetString = m.Result("$1");
string EncodingString = m.Result("$2");
string Src = m.Result("$3");
string Text = null;
EncodingIdentifier EncodingId;
// search encoding
if (EncodingString == "b" ||
EncodingString == "B")
{
EncodingId = EncodingIdentifier.Base64;
}
else if (EncodingString == "q" ||
EncodingString == "Q")
{
EncodingId = EncodingIdentifier.QuotedPrintable;
}
else
{
return(code); // invalid encoding
}
// decode the string
switch (EncodingId)
{
case EncodingIdentifier.QuotedPrintable:
Text = QPEncoder.Decode(Src, CharsetString);
break;
case EncodingIdentifier.Base64:
Text = Base64Decode(Src, CharsetString);
break;
}
return(Text);
}
/// <summary>
/// Encodes a string in "Mime Word"
/// </summary>
/// <param name="Src">The string to encode</param>
/// <param name="Encoding">The string charset Encoding</param>
/// <param name="TransfertEncoding">The transfert encoding</param>
/// <param name="Maxlength">Maximum number of char beetween 2 CRLF</param>
///
/// <returns>A MimeWord encoded string</returns>
public static string Encode(string Src, System.Text.Encoding Encoding, EncodingIdentifier TransfertEncoding, int Maxlength)
{
StringBuilder st = new StringBuilder(Src.Length);
switch (TransfertEncoding)
{
case EncodingIdentifier.QuotedPrintable:
{
string suffix = "?=";
string prefix = "=?" + Encoding.BodyName + "?q?";
int len = prefix.Length + suffix.Length;
st.Append(prefix);
for (int i = 0; i < Src.Length; i++)
{
string tmp = QPEncoder.Encode(Src[i], Encoding);
if (len + tmp.Length >= Maxlength)
{
st.AppendFormat("{0}\r\n", suffix);
len = prefix.Length + suffix.Length;
st.Append(prefix);
}
st.Append(tmp);
len += tmp.Length;
}
st.Append("?=");
}
break;
case EncodingIdentifier.Base64:
st.AppendFormat("=?{0}?b?{1}?=",
Encoding.BodyName,
MimeEncoder.StringBase64(Src, Encoding, 78));
break;
default:
throw (new ArgumentOutOfRangeException("TransfertEncoding", TransfertEncoding, "Invalid transfert identifier"));
}
return(st.ToString());
}
