File indexing completed on 2025-03-09 04:54:33

 /*
    SPDX-FileCopyrightText: 2013-2024 Laurent Montel <montel@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "plainheaderstyle.h"
 #include "header/headerstyle_util.h"
 #include "messageviewer/messageviewersettings.h"
 
 #include "header/headerstrategy.h"
 
 #include <MessageCore/StringUtil>
 
 #include <KLocalizedString>
 #include <KMime/KMimeMessage>
 #include <QApplication>
 
 using namespace MessageCore;
 
 using namespace MessageViewer;
 
 class MessageViewer::PlainHeaderStylePrivate
 {
 public:
     PlainHeaderStylePrivate() = default;
 
     [[nodiscard]] QString formatAllMessageHeaders(KMime::Message *message) const;
     MessageViewer::HeaderStyleUtil mHeaderStyleUtil;
 };
 
 QString PlainHeaderStylePrivate::formatAllMessageHeaders(KMime::Message *message) const
 {
     QByteArray head = message->head();
     QByteArrayView headView(head);
     auto header = KMime::HeaderParsing::parseNextHeader(headView);
     QString result;
     while (header) {
         result += mHeaderStyleUtil.strToHtml(QLatin1StringView(header->type()) + QLatin1StringView(": ") + header->asUnicodeString());
         result += QLatin1StringView("<br />\n");
         header = KMime::HeaderParsing::parseNextHeader(headView);
     }
 
     return result;
 }
 
 PlainHeaderStyle::PlainHeaderStyle()
     : HeaderStyle()
     , d(new MessageViewer::PlainHeaderStylePrivate)
 {
 }
 
 PlainHeaderStyle::~PlainHeaderStyle() = default;
 
 //
 // PlainHeaderStyle:
 //   show every header field on a line by itself,
 //   show subject larger
 //
 QString PlainHeaderStyle::format(KMime::Message *message) const
 {
     if (!message) {
         return {};
     }
     const HeaderStrategy *strategy = headerStrategy();
     // The direction of the header is determined according to the direction
     // of the application layout.
 
     const QString dir = QApplication::isRightToLeft() ? QStringLiteral("rtl") : QStringLiteral("ltr");
 
     // However, the direction of the message subject within the header is
     // determined according to the contents of the subject itself. Since
     // the "Re:" and "Fwd:" prefixes would always cause the subject to be
     // considered left-to-right, they are ignored when determining its
     // direction.
 
     const QString subjectDir = d->mHeaderStyleUtil.subjectDirectionString(message);
     QString headerStr;
 
     if (strategy->headersToDisplay().isEmpty() && strategy->defaultPolicy() == HeaderStrategy::Display) {
         // crude way to emulate "all" headers - Note: no strings have
         // i18n(), so direction should always be ltr.
         headerStr = QStringLiteral("<div class=\"header\" dir=\"ltr\">");
         headerStr += d->formatAllMessageHeaders(message);
         return headerStr + QLatin1StringView("</div>");
     }
 
     headerStr = QStringLiteral("<div class=\"header\" dir=\"%1\">").arg(dir);
 
     // case HdrLong:
     if (strategy->showHeader(QStringLiteral("subject"))) {
         KTextToHTML::Options flags = KTextToHTML::PreserveSpaces;
         if (showEmoticons()) {
             flags |= KTextToHTML::ReplaceSmileys;
         }
 
         headerStr += QStringLiteral("<div dir=\"%1\"><b style=\"font-size:130%\">").arg(subjectDir) + d->mHeaderStyleUtil.subjectString(message, flags)
             + QLatin1StringView("</b></div>\n");
     }
 
     if (strategy->showHeader(QStringLiteral("date"))) {
         const auto dateFormat = isPrinting() ? MessageViewer::HeaderStyleUtil::ShortDate : MessageViewer::HeaderStyleUtil::CustomDate;
         headerStr.append(i18n("Date: ") + HeaderStyleUtil::strToHtml(HeaderStyleUtil::dateString(message, dateFormat)) + QLatin1StringView("<br/>\n"));
     }
 
     if (strategy->showHeader(QStringLiteral("from"))) {
         headerStr.append(i18n("From: ") + StringUtil::emailAddrAsAnchor(message->from(), StringUtil::DisplayFullAddress, QString(), StringUtil::ShowLink));
         if (!vCardName().isEmpty()) {
             headerStr.append(QLatin1StringView("&nbsp;&nbsp;<a href=\"") + vCardName() + QLatin1StringView("\">") + i18n("[vCard]")
                              + QLatin1StringView("</a>"));
         }
 
         if (strategy->showHeader(QStringLiteral("organization")) && message->organization(false)) {
             headerStr.append(QLatin1StringView("&nbsp;&nbsp;(") + d->mHeaderStyleUtil.strToHtml(message->organization()->asUnicodeString()) + QLatin1Char(')'));
         }
         headerStr.append(QLatin1StringView("<br/>\n"));
     }
 
     if (strategy->showHeader(QStringLiteral("to"))) {
         headerStr.append(i18nc("To-field of the mailheader.", "To: ") + StringUtil::emailAddrAsAnchor(message->to(), StringUtil::DisplayFullAddress)
                          + QLatin1StringView("<br/>\n"));
     }
 
     if (strategy->showHeader(QStringLiteral("cc")) && message->cc(false)) {
         const QString str = StringUtil::emailAddrAsAnchor(message->cc(), StringUtil::DisplayFullAddress);
         if (!str.isEmpty()) {
             headerStr.append(i18n("CC: ") + str + QLatin1StringView("<br/>\n"));
         }
     }
 
     if (strategy->showHeader(QStringLiteral("bcc")) && message->bcc(false)) {
         const QString str = StringUtil::emailAddrAsAnchor(message->bcc(), StringUtil::DisplayFullAddress);
         if (!str.isEmpty()) {
             headerStr.append(i18n("BCC: ") + str + QLatin1StringView("<br/>\n"));
         }
     }
 
     if (strategy->showHeader(QStringLiteral("reply-to")) && message->replyTo(false)) {
         headerStr.append(i18n("Reply to: ") + StringUtil::emailAddrAsAnchor(message->replyTo(), StringUtil::DisplayFullAddress) + QLatin1StringView("<br/>\n"));
     }
 
     headerStr += QLatin1StringView("</div>\n");
 
     return headerStr;
 }
 
 const char *MessageViewer::PlainHeaderStyle::name() const
 {
     return "plain";
 }