static int
MimeInlineTextPlainFlowed_parse_line (const char *aLine, PRInt32 length, MimeObject *obj)
{
int status;
PRBool quoting = ( obj->options
&& ( obj->options->format_out == nsMimeOutput::nsMimeMessageQuoting ||
obj->options->format_out == nsMimeOutput::nsMimeMessageBodyQuoting
) ); // see above
PRBool plainHTML = quoting || (obj->options &&
obj->options->format_out == nsMimeOutput::nsMimeMessageSaveAs);
// see above
struct MimeInlineTextPlainFlowedExData *exdata;
exdata = MimeInlineTextPlainFlowedExDataList;
while(exdata && (exdata->ownerobj != obj)) {
exdata = exdata->next;
}
NS_ASSERTION(exdata, "The extra data has disappeared!");
NS_ASSERTION(length > 0, "zero length");
if (length <= 0) return 0;
uint32 linequotelevel = 0;
nsCAutoString real_line(aLine, length);
char *line = real_line.BeginWriting();
const char *linep = real_line.BeginReading();
// Space stuffed?
if(' ' == *linep) {
linep++;
} else {
// count '>':s before the first non-'>'
while('>' == *linep) {
linep++;
linequotelevel++;
}
// Space stuffed?
if(' ' == *linep) {
linep++;
}
}
// Look if the last character (after stripping ending end
// of lines and quoting stuff) is a SPACE. If it is, we are looking at a
// flowed line. Normally we assume that the last two chars
// are CR and LF as said in RFC822, but that doesn't seem to
// be the case always.
PRBool flowed = PR_FALSE;
PRBool sigSeparator = PR_FALSE;
PRInt32 index = length-1;
while(index >= 0 && ('\r' == line[index] || '\n' == line[index])) {
index--;
}
if (index > linep - line && ' ' == line[index])
/* Ignore space stuffing, i.e. lines with just
(quote marks and) a space count as empty */
{
flowed = PR_TRUE;
sigSeparator = (index - (linep - line) + 1 == 3) && !strncmp(linep, "-- ", 3);
if (((MimeInlineTextPlainFlowed *) obj)->delSp && ! sigSeparator)
/* If line is flowed and DelSp=yes, logically
delete trailing space. Line consisting of
dash dash space ("-- "), commonly used as
signature separator, gets special handling
(RFC 3676) */
{
length--;
line[index] = '\0';
}
}
mozITXTToHTMLConv *conv = GetTextConverter(obj->options);
PRBool skipConversion = !conv ||
(obj->options && obj->options->force_user_charset);
nsAutoString lineSource;
nsString lineResult;
char *mailCharset = NULL;
nsresult rv;
if (!skipConversion)
{
// Convert only if the source string is not empty
if (length - (linep - line) > 0)
{
PRBool whattodo = obj->options->whattodo;
if (plainHTML)
{
if (quoting)
whattodo = 0;
else
whattodo = whattodo & ~mozITXTToHTMLConv::kGlyphSubstitution;
/* Do recognition for the case, the result is viewed in
Mozilla, but not GlyphSubstitution, because other UAs
might not be able to display the glyphs. */
}
const nsDependentCSubstring& inputStr = Substring(linep, linep + (length - (linep - line)));
// For 'SaveAs', |line| is in |mailCharset|.
// convert |line| to UTF-16 before 'html'izing (calling ScanTXT())
if (obj->options->format_out == nsMimeOutput::nsMimeMessageSaveAs)
{
// Get the mail charset of this message.
MimeInlineText *inlinetext = (MimeInlineText *) obj;
if (!inlinetext->initializeCharset)
((MimeInlineTextClass*)&mimeInlineTextClass)->initialize_charset(obj);
mailCharset = inlinetext->charset;
if (mailCharset && *mailCharset) {
rv = nsMsgI18NConvertToUnicode(mailCharset, PromiseFlatCString(inputStr), lineSource);
NS_ENSURE_SUCCESS(rv, -1);
}
else // this probably never happens...
CopyUTF8toUTF16(inputStr, lineSource);
}
else // line is in UTF-8
CopyUTF8toUTF16(inputStr, lineSource);
// This is the main TXT to HTML conversion:
// escaping (very important), eventually recognizing etc.
rv = conv->ScanTXT(lineSource.get(), whattodo, getter_Copies(lineResult));
NS_ENSURE_SUCCESS(rv, -1);
}
}
else
{
CopyUTF8toUTF16(nsDependentCString(line, length), lineResult);
status = NS_OK;
}
nsCAutoString preface;
/* Correct number of blockquotes */
int32 quoteleveldiff=linequotelevel - exdata->quotelevel;
if((quoteleveldiff != 0) && flowed && exdata->inflow) {
// From RFC 2646 4.5
// The receiver SHOULD handle this error by using the 'quote-depth-wins' rule,
// which is to ignore the flowed indicator and treat the line as fixed. That
// is, the change in quote depth ends the paragraph.
// We get that behaviour by just going on.
}
while(quoteleveldiff>0) {
quoteleveldiff--;
preface += "<blockquote type=cite";
// This is to have us observe the user pref settings for citations
MimeInlineTextPlainFlowed *tObj = (MimeInlineTextPlainFlowed *) obj;
nsCAutoString style;
MimeTextBuildPrefixCSS(tObj->mQuotedSizeSetting, tObj->mQuotedStyleSetting,
tObj->mCitationColor, style);
if (!plainHTML && !style.IsEmpty())
{
preface += " style=\"";
preface += style;
preface += '"';
}
preface += '>';
}
while(quoteleveldiff<0) {
quoteleveldiff++;
preface += "</blockquote>";
}
exdata->quotelevel = linequotelevel;
nsAutoString lineResult2;
if(flowed) {
// Check RFC 2646 "4.3. Usenet Signature Convention": "-- "+CRLF is
// not a flowed line
if (sigSeparator)
{
if (linequotelevel > 0 || exdata->isSig)
{
preface += "-- <br>";
} else {
exdata->isSig = PR_TRUE;
preface += "<div class=\"moz-txt-sig\"><span class=\"moz-txt-tag\">"
"-- <br></span>";
}
} else {
Line_convert_whitespace(lineResult, PR_FALSE /* Allow wraps */,
lineResult2);
}
exdata->inflow=PR_TRUE;
} else {
// Fixed paragraph.
Line_convert_whitespace(lineResult,
!plainHTML && !obj->options->wrap_long_lines_p
/* If wrap, convert all spaces but the last in
a row into nbsp, otherwise all. */,
lineResult2);
lineResult2.AppendLiteral("<br>");
exdata->inflow = PR_FALSE;
} // End Fixed line
if (!(exdata->isSig && quoting))
{
status = MimeObject_write(obj, preface.get(), preface.Length(), PR_TRUE);
if (status < 0) return status;
nsCAutoString outString;
if (obj->options->format_out != nsMimeOutput::nsMimeMessageSaveAs ||
!mailCharset || !*mailCharset)
CopyUTF16toUTF8(lineResult2, outString);
else
{ // convert back to mailCharset before writing.
rv = nsMsgI18NConvertFromUnicode(mailCharset, lineResult2, outString);
NS_ENSURE_SUCCESS(rv, -1);
}
status = MimeObject_write(obj, outString.get(), outString.Length(), PR_TRUE);
return status;
}
else
return NS_OK;
}
static int
MimeInlineTextPlain_parse_line (char *line, PRInt32 length, MimeObject *obj)
{
int status;
PRBool quoting = ( obj->options
&& ( obj->options->format_out == nsMimeOutput::nsMimeMessageQuoting ||
obj->options->format_out == nsMimeOutput::nsMimeMessageBodyQuoting
) ); // see above
PRBool plainHTML = quoting || (obj->options &&
obj->options->format_out == nsMimeOutput::nsMimeMessageSaveAs);
// see above
PRBool rawPlainText = obj->options &&
(obj->options->format_out == nsMimeOutput::nsMimeMessageFilterSniffer
|| obj->options->format_out == nsMimeOutput::nsMimeMessageAttach);
// this routine gets called for every line of data that comes through the
// mime converter. It's important to make sure we are efficient with
// how we allocate memory in this routine. be careful if you go to add
// more to this routine.
NS_ASSERTION(length > 0, "zero length");
if (length <= 0) return 0;
mozITXTToHTMLConv *conv = GetTextConverter(obj->options);
MimeInlineTextPlain *text = (MimeInlineTextPlain *) obj;
PRBool skipConversion = !conv || rawPlainText ||
(obj->options && obj->options->force_user_charset);
char *mailCharset = NULL;
nsresult rv;
// if this part has a name and it's not a message/rfc822, don't quote
if (quoting && obj->headers && MimeHeaders_get_name(obj->headers, obj->options)
&& PL_strcasecmp(obj->content_type, MESSAGE_RFC822))
return 0;
if (!skipConversion)
{
nsDependentCString inputStr(line, length);
nsAutoString lineSourceStr;
// For 'SaveAs', |line| is in |mailCharset|.
// convert |line| to UTF-16 before 'html'izing (calling ScanTXT())
if (obj->options->format_out == nsMimeOutput::nsMimeMessageSaveAs)
{ // Get the mail charset of this message.
MimeInlineText *inlinetext = (MimeInlineText *) obj;
if (!inlinetext->initializeCharset)
((MimeInlineTextClass*)&mimeInlineTextClass)->initialize_charset(obj);
mailCharset = inlinetext->charset;
if (mailCharset && *mailCharset) {
rv = nsMsgI18NConvertToUnicode(mailCharset, inputStr, lineSourceStr);
NS_ENSURE_SUCCESS(rv, -1);
}
else // this probably never happens ...
CopyUTF8toUTF16(inputStr, lineSourceStr);
}
else // line is in UTF-8
CopyUTF8toUTF16(inputStr, lineSourceStr);
nsCAutoString prefaceResultStr; // Quoting stuff before the real text
// Recognize quotes
PRUint32 oldCiteLevel = text->mCiteLevel;
PRUint32 logicalLineStart = 0;
rv = conv->CiteLevelTXT(lineSourceStr.get(),
&logicalLineStart, &(text->mCiteLevel));
NS_ENSURE_SUCCESS(rv, -1);
// Find out, which recognitions to do
PRBool whattodo = obj->options->whattodo;
if (plainHTML)
{
if (quoting)
whattodo = 0; // This is done on Send. Don't do it twice.
else
whattodo = whattodo & ~mozITXTToHTMLConv::kGlyphSubstitution;
/* Do recognition for the case, the result is viewed in
Mozilla, but not GlyphSubstitution, because other UAs
might not be able to display the glyphs. */
if (!text->mBlockquoting)
text->mCiteLevel = 0;
}
// Write blockquote
if (text->mCiteLevel > oldCiteLevel)
{
prefaceResultStr += "</pre>";
for (PRUint32 i = 0; i < text->mCiteLevel - oldCiteLevel; i++)
{
nsCAutoString style;
MimeTextBuildPrefixCSS(text->mQuotedSizeSetting, text->mQuotedStyleSetting,
text->mCitationColor, style);
if (!plainHTML && !style.IsEmpty())
{
prefaceResultStr += "<blockquote type=cite style=\"";
prefaceResultStr += style;
prefaceResultStr += "\">";
}
else
prefaceResultStr += "<blockquote type=cite>";
}
prefaceResultStr += "<pre wrap>";
}
else if (text->mCiteLevel < oldCiteLevel)
{
prefaceResultStr += "</pre>";
for (PRUint32 i = 0; i < oldCiteLevel - text->mCiteLevel; i++)
prefaceResultStr += "</blockquote>";
prefaceResultStr += "<pre wrap>";
if (text->mCiteLevel == 0)
prefaceResultStr += "<!---->"; /* Make sure, NGLayout puts out
a linebreak */
}
// Write plain text quoting tags
if (logicalLineStart != 0 && !(plainHTML && text->mBlockquoting))
{
if (!plainHTML)
prefaceResultStr += "<span class=\"moz-txt-citetags\">";
nsAutoString citeTagsSource;
lineSourceStr.Mid(citeTagsSource, 0, logicalLineStart);
// Convert to HTML
nsXPIDLString citeTagsResultUnichar;
rv = conv->ScanTXT(citeTagsSource.get(), 0 /* no recognition */,
getter_Copies(citeTagsResultUnichar));
if (NS_FAILED(rv)) return -1;
AppendUTF16toUTF8(citeTagsResultUnichar, prefaceResultStr);
if (!plainHTML)
prefaceResultStr += "</span>";
}
// recognize signature
if ((lineSourceStr.Length() >= 4)
&& lineSourceStr.First() == '-'
&& Substring(lineSourceStr, 0, 3).EqualsLiteral("-- ")
&& (lineSourceStr[3] == '\r' || lineSourceStr[3] == '\n') )
{
text->mIsSig = PR_TRUE;
if (!quoting)
prefaceResultStr += "<div class=\"moz-txt-sig\">";
}
/* This is the main TXT to HTML conversion:
escaping (very important), eventually recognizing etc. */
nsXPIDLString lineResultUnichar;
rv = conv->ScanTXT(lineSourceStr.get() + logicalLineStart,
whattodo, getter_Copies(lineResultUnichar));
NS_ENSURE_SUCCESS(rv, -1);
if (!(text->mIsSig && quoting))
{
status = MimeObject_write(obj, prefaceResultStr.get(), prefaceResultStr.Length(), PR_TRUE);
if (status < 0) return status;
nsCAutoString outString;
if (obj->options->format_out != nsMimeOutput::nsMimeMessageSaveAs ||
!mailCharset || !*mailCharset)
CopyUTF16toUTF8(lineResultUnichar, outString);
else
{ // convert back to mailCharset before writing.
rv = nsMsgI18NConvertFromUnicode(mailCharset,
lineResultUnichar, outString);
NS_ENSURE_SUCCESS(rv, -1);
}
status = MimeObject_write(obj, outString.get(), outString.Length(), PR_TRUE);
}
else
{
status = NS_OK;
}
}
else
{
status = MimeObject_write(obj, line, length, PR_TRUE);
}
return status;
}