QCString dispositionNotificationBodyContent( const QString & r,
const QCString & o,
const QCString & omid,
DispositionType d,
ActionMode a,
SendingMode s,
const QValueList<DispositionModifier> & m,
const QString & special )
{
// in Perl: chomp(special)
QString spec;
if ( special.endsWith("\n") )
spec = special.left( special.length() - 1 );
else
spec = special;
// std headers:
QCString result = reportingUAField();
result += orginalRecipient( o );
result += finalRecipient( r );
result += originalMessageID( omid );
result += dispositionField( d, a, s, m );
// headers that are only present for certain disposition {types,modifiers}:
if ( d == Failed )
result += "Failure: " + encodeRFC2047String( spec, "utf-8" ) + "\n";
else if ( m.contains( Error ) )
result += "Error: " + encodeRFC2047String( spec, "utf-8" ) + "\n";
else if ( m.contains( Warning ) )
result += "Warning: " + encodeRFC2047String( spec, "utf-8" ) + "\n";
return result;
}
static QCString finalRecipient( const QString & recipient ) {
if ( recipient.isEmpty() )
return QCString();
else
return "Final-Recipient: rfc822; "
+ encodeRFC2047String( recipient, "utf-8" ) + "\n";
}
/** @short Encode the given string into RFC2047 form, preserving the ASCII leading part if possible */
QByteArray encodeRFC2047StringWithAsciiPrefix(const QString &text)
{
// The maximal recommended line length, as defined by RFC 5322
const int maxLineLength = 78;
// Find first character which needs escaping
int pos = 0;
while (pos < text.size() && pos < maxLineLength &&
(text[pos].unicode() == 0x20 || !rfc2047QPNeedsEscpaing(text[pos].unicode())))
++pos;
// Find last character of a word which doesn't need escaping
if (pos != text.size()) {
while (pos > 0 && text[pos-1].unicode() != 0x20)
--pos;
if (pos > 0 && text[pos].unicode() == 0x20)
--pos;
}
QByteArray prefix = text.left(pos).toUtf8();
if (pos == text.size())
return prefix;
QString rest = text.mid(pos);
Rfc2047StringCharacterSetType charset = charsetForInput(rest);
return prefix + encodeRFC2047String(rest, charset);
}
static QByteArray finalRecipient( const QString &recipient )
{
if ( recipient.isEmpty() ) {
return QByteArray();
} else {
return "Final-Recipient: rfc822; "
+ encodeRFC2047String( recipient, "utf-8" ) + '\n';
}
}
QByteArray encodeRFC2047Phrase( const QString &text )
{
/* We want to know if we can encode as ASCII. But bizarrely, Qt
(on my system at least) doesn't have an ASCII codec. So we use
the ISO-8859-1 superset, and check for any non-ASCII characters
in the result. */
QTextCodec *latin1 = QTextCodec::codecForMib(4);
if (latin1->canEncode(text)) {
/* Attempt to represent it as an RFC2822 'phrase' --- either a
sequence of atoms or as a quoted-string. */
if (atomPhraseRx.exactMatch(text)) {
/* Simplest case: a sequence of atoms (not dot-atoms) */
return latin1->fromUnicode(text);
} else {
/* Next-simplest representation: a quoted-string */
QByteArray unquoted = latin1->fromUnicode(text);
/* Check for non-ASCII characters. */
for(int i = 0; i < unquoted.size(); i++) {
char ch = unquoted[i];
if (ch < 1 || ch >= 127) {
/* This string contains non-ASCII characters, so the
only way to represent it in a mail header is as an
RFC2047 encoded-word. */
return encodeRFC2047String(text, RFC2047_STRING_LATIN);
}
}
return quotedString(unquoted);
}
}
/* If the text has characters outside of the basic ASCII set, then
it has to be encoded using the RFC2047 encoded-word syntax. */
return encodeRFC2047String(text, RFC2047_STRING_UTF8);
}