File indexing completed on 2024-05-12 09:02:17

 // SPDX-FileCopyrightText: 2023 James Graham <james.h.graham@protonmail.com>
 // SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 
 #include "eventhandler.h"
 
 #include <QMovie>
 
 #include <KLocalizedString>
 
 #include <Quotient/eventitem.h>
 #include <Quotient/events/encryptionevent.h>
 #include <Quotient/events/reactionevent.h>
 #include <Quotient/events/redactionevent.h>
 #include <Quotient/events/roomavatarevent.h>
 #include <Quotient/events/roomcanonicalaliasevent.h>
 #include <Quotient/events/roommemberevent.h>
 #include <Quotient/events/roompowerlevelsevent.h>
 #include <Quotient/events/simplestateevents.h>
 #include <Quotient/events/stickerevent.h>
 #include <Quotient/quotient_common.h>
 
 #include "delegatetype.h"
 #include "eventhandler_logging.h"
 #include "events/pollevent.h"
 #include "linkpreviewer.h"
 #include "models/reactionmodel.h"
 #include "neochatconfig.h"
 #include "neochatroom.h"
 #include "texthandler.h"
 #include "utils.h"
 
 using namespace Quotient;
 
 const NeoChatRoom *EventHandler::getRoom() const
 {
     return m_room;
 }
 
 void EventHandler::setRoom(const NeoChatRoom *room)
 {
     if (room == m_room) {
         return;
     }
     m_room = room;
 }
 
 const Quotient::Event *EventHandler::getEvent() const
 {
     return m_event;
 }
 
 void EventHandler::setEvent(const Quotient::RoomEvent *event)
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "cannot setEvent when m_room is set to nullptr.";
         return;
     }
     if (event == m_event) {
         return;
     }
     m_event = event;
 }
 
 QString EventHandler::getId() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getId called with m_event set to nullptr.";
         return {};
     }
 
     return !m_event->id().isEmpty() ? m_event->id() : m_event->transactionId();
 }
 
 DelegateType::Type EventHandler::getDelegateTypeForEvent(const Quotient::RoomEvent *event) const
 {
     if (auto e = eventCast<const RoomMessageEvent>(event)) {
         switch (e->msgtype()) {
         case MessageEventType::Emote:
             return DelegateType::Emote;
         case MessageEventType::Notice:
             return DelegateType::Notice;
         case MessageEventType::Image:
             return DelegateType::Image;
         case MessageEventType::Audio:
             return DelegateType::Audio;
         case MessageEventType::Video:
             return DelegateType::Video;
         case MessageEventType::Location:
             return DelegateType::Location;
         default:
             break;
         }
         if (e->hasFileContent()) {
             return DelegateType::File;
         }
 
         return DelegateType::Message;
     }
     if (is<const StickerEvent>(*event)) {
         return DelegateType::Sticker;
     }
     if (event->isStateEvent()) {
         if (event->matrixType() == QStringLiteral("org.matrix.msc3672.beacon_info")) {
             return DelegateType::LiveLocation;
         }
         return DelegateType::State;
     }
     if (is<const EncryptedEvent>(*event)) {
         return DelegateType::Encrypted;
     }
     if (is<PollStartEvent>(*event)) {
         const auto pollEvent = eventCast<const PollStartEvent>(event);
         if (pollEvent->isRedacted()) {
             return DelegateType::Message;
         }
         return DelegateType::Poll;
     }
 
     return DelegateType::Other;
 }
 
 DelegateType::Type EventHandler::getDelegateType() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getDelegateType called with m_event set to nullptr.";
         return DelegateType::Other;
     }
 
     return getDelegateTypeForEvent(m_event);
 }
 
 QVariantMap EventHandler::getAuthor(bool isPending) const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getAuthor called with m_room set to nullptr.";
         return {};
     }
     // If we have a room we can return an empty user by handing nullptr to m_room->getUser.
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getAuthor called with m_event set to nullptr. Returning empty user.";
         return m_room->getUser(nullptr);
     }
 
     const auto author = isPending ? m_room->localUser() : m_room->user(m_event->senderId());
     return m_room->getUser(author);
 }
 
 QString EventHandler::getAuthorDisplayName(bool isPending) const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getAuthorDisplayName called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getAuthorDisplayName called with m_event set to nullptr.";
         return {};
     }
 
     if (is<RoomMemberEvent>(*m_event) && !m_event->unsignedJson()[QStringLiteral("prev_content")][QStringLiteral("displayname")].isNull()
         && m_event->stateKey() == m_event->senderId()) {
         auto previousDisplayName = m_event->unsignedJson()[QStringLiteral("prev_content")][QStringLiteral("displayname")].toString().toHtmlEscaped();
         if (previousDisplayName.isEmpty()) {
             previousDisplayName = m_event->senderId();
         }
         return previousDisplayName;
     } else {
         const auto author = isPending ? m_room->localUser() : m_room->user(m_event->senderId());
         return m_room->htmlSafeMemberName(author->id());
     }
 }
 
 QString EventHandler::singleLineAuthorDisplayname(bool isPending) const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getAuthorDisplayName called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getAuthorDisplayName called with m_event set to nullptr.";
         return {};
     }
 
     const auto author = isPending ? m_room->localUser() : m_room->user(m_event->senderId());
     auto displayName = m_room->safeMemberName(author->id());
     displayName.replace(QStringLiteral("<br>\n"), QStringLiteral(" "));
     displayName.replace(QStringLiteral("<br>"), QStringLiteral(" "));
     displayName.replace(QStringLiteral("<br />\n"), QStringLiteral(" "));
     displayName.replace(QStringLiteral("<br />"), QStringLiteral(" "));
     displayName.replace(u'\n', QStringLiteral(" "));
     displayName.replace(u'\u2028', QStringLiteral(" "));
     return displayName;
 }
 
 QDateTime EventHandler::getTime(bool isPending, QDateTime lastUpdated) const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getTime called with m_event set to nullptr.";
         return {};
     }
     if (isPending && lastUpdated == QDateTime()) {
         qCWarning(EventHandling) << "a value must be provided for lastUpdated for a pending event.";
         return {};
     }
 
     return isPending ? lastUpdated : m_event->originTimestamp();
 }
 
 QString EventHandler::getTimeString(bool relative, QLocale::FormatType format, bool isPending, QDateTime lastUpdated) const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getTimeString called with m_event set to nullptr.";
         return {};
     }
     if (isPending && lastUpdated == QDateTime()) {
         qCWarning(EventHandling) << "a value must be provided for lastUpdated for a pending event.";
         return {};
     }
 
     auto ts = getTime(isPending, lastUpdated);
     if (ts.isValid()) {
         if (relative) {
             return m_format.formatRelativeDate(ts.toLocalTime().date(), format);
         } else {
             return QLocale().toString(ts.toLocalTime().time(), format);
         }
     }
     return {};
 }
 
 bool EventHandler::isHighlighted()
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "isHighlighted called with m_room set to nullptr.";
         return false;
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "isHighlighted called with m_event set to nullptr.";
         return false;
     }
 
     return !m_room->isDirectChat() && m_room->isEventHighlighted(m_event);
 }
 
 bool EventHandler::isHidden()
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "isHidden called with m_room set to nullptr.";
         return false;
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "isHidden called with m_event set to nullptr.";
         return false;
     }
 
     if (m_event->isStateEvent() && !NeoChatConfig::self()->showStateEvent()) {
         return true;
     }
 
     if (auto roomMemberEvent = eventCast<const RoomMemberEvent>(m_event)) {
         if ((roomMemberEvent->isJoin() || roomMemberEvent->isLeave()) && !NeoChatConfig::self()->showLeaveJoinEvent()) {
             return true;
         } else if (roomMemberEvent->isRename() && !roomMemberEvent->isJoin() && !roomMemberEvent->isLeave() && !NeoChatConfig::self()->showRename()) {
             return true;
         } else if (roomMemberEvent->isAvatarUpdate() && !roomMemberEvent->isJoin() && !roomMemberEvent->isLeave()
                    && !NeoChatConfig::self()->showAvatarUpdate()) {
             return true;
         }
     }
 
     if (m_event->isStateEvent() && eventCast<const StateEvent>(m_event)->repeatsState()) {
         return true;
     }
 
     // isReplacement?
     if (auto e = eventCast<const RoomMessageEvent>(m_event)) {
         if (!e->replacedEvent().isEmpty()) {
             return true;
         }
     }
 
     if (is<RedactionEvent>(*m_event) || is<ReactionEvent>(*m_event)) {
         return true;
     }
 
     if (auto e = eventCast<const RoomMessageEvent>(m_event)) {
         if (!e->replacedEvent().isEmpty() && e->replacedEvent() != e->id()) {
             return true;
         }
     }
 
     if (m_room->connection()->isIgnored(m_room->user(m_event->senderId()))) {
         return true;
     }
 
     // hide ending live location beacons
     if (m_event->isStateEvent() && m_event->matrixType() == "org.matrix.msc3672.beacon_info"_ls && !m_event->contentJson()["live"_ls].toBool()) {
         return true;
     }
 
     return false;
 }
 
 QString EventHandler::getRichBody(bool stripNewlines) const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getRichBody called with m_event set to nullptr.";
         return {};
     }
     return getBody(m_event, Qt::RichText, stripNewlines);
 }
 
 QString EventHandler::getPlainBody(bool stripNewlines) const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getPlainBody called with m_event set to nullptr.";
         return {};
     }
     return getBody(m_event, Qt::PlainText, stripNewlines);
 }
 
 QString EventHandler::getBody(const Quotient::RoomEvent *event, Qt::TextFormat format, bool stripNewlines) const
 {
     if (event->isRedacted()) {
         auto reason = event->redactedBecause()->reason();
         return (reason.isEmpty()) ? i18n("<i>[This message was deleted]</i>") : i18n("<i>[This message was deleted: %1]</i>", reason);
     }
 
     const bool prettyPrint = (format == Qt::RichText);
 
     return switchOnType(
         *event,
         [this, format, stripNewlines](const RoomMessageEvent &event) {
             return getMessageBody(event, format, stripNewlines);
         },
         [](const StickerEvent &e) {
             return e.body();
         },
         [this, prettyPrint](const RoomMemberEvent &e) {
             // FIXME: Rewind to the name that was at the time of this event
             auto subjectName = m_room->htmlSafeMemberName(e.userId());
             if (e.membership() == Membership::Leave) {
                 if (e.prevContent() && e.prevContent()->displayName) {
                     subjectName = sanitized(*e.prevContent()->displayName).toHtmlEscaped();
                 }
             }
 
             if (prettyPrint) {
                 subjectName = QStringLiteral("<a href=\"https://matrix.to/#/%1\" style=\"color: %2\">%3</a>")
                                   .arg(e.userId(), Utils::getUserColor(m_room->user(e.userId())->hueF()).name(), subjectName);
             }
 
             // The below code assumes senderName output in AuthorRole
             switch (e.membership()) {
             case Membership::Invite:
                 if (e.repeatsState()) {
                     auto text = i18n("reinvited %1 to the room", subjectName);
                     if (!e.reason().isEmpty()) {
                         text += i18nc("Optional reason for an invitation", ": %1") + (prettyPrint ? e.reason().toHtmlEscaped() : e.reason());
                     }
                     return text;
                 }
                 Q_FALLTHROUGH();
             case Membership::Join: {
                 QString text{};
                 // Part 1: invites and joins
                 if (e.repeatsState()) {
                     text = i18n("joined the room (repeated)");
                 } else if (e.changesMembership()) {
                     text = e.membership() == Membership::Invite ? i18n("invited %1 to the room", subjectName) : i18n("joined the room");
                 }
                 if (!text.isEmpty()) {
                     if (!e.reason().isEmpty()) {
                         text += i18n(": %1", e.reason().toHtmlEscaped());
                     }
                     return text;
                 }
                 // Part 2: profile changes of joined members
                 if (e.isRename()) {
                     if (!e.newDisplayName()) {
                         text = i18nc("their refers to a singular user", "cleared their display name");
                     } else {
                         text = i18nc("their refers to a singular user",
                                      "changed their display name to %1",
                                      prettyPrint ? e.newDisplayName()->toHtmlEscaped() : *e.newDisplayName());
                     }
                 }
                 if (e.isAvatarUpdate()) {
                     if (!text.isEmpty()) {
                         text += i18n(" and ");
                     }
                     if (!e.newAvatarUrl()) {
                         text += i18nc("their refers to a singular user", "cleared their avatar");
                     } else if (!e.prevContent()->avatarUrl) {
                         text += i18n("set an avatar");
                     } else {
                         text += i18nc("their refers to a singular user", "updated their avatar");
                     }
                 }
                 if (text.isEmpty()) {
                     text = i18nc("<user> changed nothing", "changed nothing");
                 }
                 return text;
             }
             case Membership::Leave:
                 if (e.prevContent() && e.prevContent()->membership == Membership::Invite) {
                     return (e.senderId() != e.userId()) ? i18n("withdrew %1's invitation", subjectName) : i18n("rejected the invitation");
                 }
 
                 if (e.prevContent() && e.prevContent()->membership == Membership::Ban) {
                     return (e.senderId() != e.userId()) ? i18n("unbanned %1", subjectName) : i18n("self-unbanned");
                 }
                 return (e.senderId() != e.userId())
                     ? i18n("has put %1 out of the room: %2", subjectName, e.contentJson()["reason"_ls].toString().toHtmlEscaped())
                     : i18n("left the room");
             case Membership::Ban:
                 if (e.senderId() != e.userId()) {
                     if (e.reason().isEmpty()) {
                         return i18n("banned %1 from the room", subjectName);
                     } else {
                         return i18n("banned %1 from the room: %2", subjectName, prettyPrint ? e.reason().toHtmlEscaped() : e.reason());
                     }
                 } else {
                     return i18n("self-banned from the room");
                 }
             case Membership::Knock: {
                 QString reason(e.contentJson()["reason"_ls].toString().toHtmlEscaped());
                 return reason.isEmpty() ? i18n("requested an invite") : i18n("requested an invite with reason: %1", reason);
             }
             default:;
             }
             return i18n("made something unknown");
         },
         [](const RoomCanonicalAliasEvent &e) {
             return (e.alias().isEmpty()) ? i18n("cleared the room main alias") : i18n("set the room main alias to: %1", e.alias());
         },
         [prettyPrint](const RoomNameEvent &e) {
             return (e.name().isEmpty()) ? i18n("cleared the room name") : i18n("set the room name to: %1", prettyPrint ? e.name().toHtmlEscaped() : e.name());
         },
         [prettyPrint, stripNewlines](const RoomTopicEvent &e) {
             return (e.topic().isEmpty()) ? i18n("cleared the topic")
                                          : i18n("set the topic to: %1",
                                                 prettyPrint         ? Quotient::prettyPrint(e.topic())
                                                     : stripNewlines ? e.topic().replace(u'\n', u' ')
                                                                     : e.topic());
         },
         [](const RoomAvatarEvent &) {
             return i18n("changed the room avatar");
         },
         [](const EncryptionEvent &) {
             return i18n("activated End-to-End Encryption");
         },
         [prettyPrint](const RoomCreateEvent &e) {
             return e.isUpgrade()
                 ? i18n("upgraded the room to version %1", e.version().isEmpty() ? "1"_ls : (prettyPrint ? e.version().toHtmlEscaped() : e.version()))
                 : i18n("created the room, version %1", e.version().isEmpty() ? "1"_ls : (prettyPrint ? e.version().toHtmlEscaped() : e.version()));
         },
         [](const RoomPowerLevelsEvent &) {
             return i18nc("'power level' means permission level", "changed the power levels for this room");
         },
         [prettyPrint](const StateEvent &e) {
             if (e.matrixType() == QLatin1String("m.room.server_acl")) {
                 return i18n("changed the server access control lists for this room");
             }
             if (e.matrixType() == QLatin1String("im.vector.modular.widgets")) {
                 if (e.fullJson()["unsigned"_ls]["prev_content"_ls].toObject().isEmpty()) {
                     return i18nc("[User] added <name> widget", "added %1 widget", e.contentJson()["name"_ls].toString());
                 }
                 if (e.contentJson().isEmpty()) {
                     return i18nc("[User] removed <name> widget", "removed %1 widget", e.fullJson()["unsigned"_ls]["prev_content"_ls]["name"_ls].toString());
                 }
                 return i18nc("[User] configured <name> widget", "configured %1 widget", e.contentJson()["name"_ls].toString());
             }
             if (e.matrixType() == "org.matrix.msc3672.beacon_info"_ls) {
                 return e.contentJson()["description"_ls].toString();
             }
             return e.stateKey().isEmpty() ? i18n("updated %1 state", e.matrixType())
                                           : i18n("updated %1 state for %2", e.matrixType(), prettyPrint ? e.stateKey().toHtmlEscaped() : e.stateKey());
         },
         [](const PollStartEvent &e) {
             return e.question();
         },
         i18n("Unknown event"));
 }
 
 QString EventHandler::getMessageBody(const RoomMessageEvent &event, Qt::TextFormat format, bool stripNewlines) const
 {
     TextHandler textHandler;
 
     if (event.hasFileContent()) {
         auto fileCaption = event.content()->fileInfo()->originalName;
         if (fileCaption.isEmpty()) {
             fileCaption = event.plainBody();
         } else if (event.content()->fileInfo()->originalName != event.plainBody()) {
             fileCaption = event.plainBody() + " | "_ls + fileCaption;
         }
         textHandler.setData(fileCaption);
         return !fileCaption.isEmpty() ? textHandler.handleRecievePlainText(Qt::PlainText, stripNewlines) : i18n("a file");
     }
 
     QString body;
     if (event.hasTextContent() && event.content()) {
         body = static_cast<const MessageEventContent::TextContent *>(event.content())->body;
     } else {
         body = event.plainBody();
     }
 
     textHandler.setData(body);
 
     Qt::TextFormat inputFormat;
     if (event.mimeType().name() == "text/plain"_ls) {
         inputFormat = Qt::PlainText;
     } else {
         inputFormat = Qt::RichText;
     }
 
     if (format == Qt::RichText) {
         return textHandler.handleRecieveRichText(inputFormat, m_room, &event, stripNewlines);
     } else {
         return textHandler.handleRecievePlainText(inputFormat, stripNewlines);
     }
 }
 
 QString EventHandler::getGenericBody() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getGenericBody called with m_event set to nullptr.";
         return {};
     }
     if (m_event->isRedacted()) {
         return i18n("<i>[This message was deleted]</i>");
     }
 
     return switchOnType(
         *m_event,
         [](const RoomMessageEvent &e) {
             Q_UNUSED(e)
             return i18n("sent a message");
         },
         [](const StickerEvent &e) {
             Q_UNUSED(e)
             return i18n("sent a sticker");
         },
         [](const RoomMemberEvent &e) {
             switch (e.membership()) {
             case Membership::Invite:
                 if (e.repeatsState()) {
                     return i18n("reinvited someone to the room");
                 }
                 Q_FALLTHROUGH();
             case Membership::Join: {
                 QString text{};
                 // Part 1: invites and joins
                 if (e.repeatsState()) {
                     text = i18n("joined the room (repeated)");
                 } else if (e.changesMembership()) {
                     text = e.membership() == Membership::Invite ? i18n("invited someone to the room") : i18n("joined the room");
                 }
                 if (!text.isEmpty()) {
                     return text;
                 }
                 // Part 2: profile changes of joined members
                 if (e.isRename()) {
                     if (!e.newDisplayName()) {
                         text = i18nc("their refers to a singular user", "cleared their display name");
                     } else {
                         text = i18nc("their refers to a singular user", "changed their display name");
                     }
                 }
                 if (e.isAvatarUpdate()) {
                     if (!text.isEmpty()) {
                         text += i18n(" and ");
                     }
                     if (!e.newAvatarUrl()) {
                         text += i18nc("their refers to a singular user", "cleared their avatar");
                     } else if (!e.prevContent()->avatarUrl) {
                         text += i18n("set an avatar");
                     } else {
                         text += i18nc("their refers to a singular user", "updated their avatar");
                     }
                 }
                 if (text.isEmpty()) {
                     text = i18nc("<user> changed nothing", "changed nothing");
                 }
                 return text;
             }
             case Membership::Leave:
                 if (e.prevContent() && e.prevContent()->membership == Membership::Invite) {
                     return (e.senderId() != e.userId()) ? i18n("withdrew a user's invitation") : i18n("rejected the invitation");
                 }
 
                 if (e.prevContent() && e.prevContent()->membership == Membership::Ban) {
                     return (e.senderId() != e.userId()) ? i18n("unbanned a user") : i18n("self-unbanned");
                 }
                 return (e.senderId() != e.userId()) ? i18n("put a user out of the room") : i18n("left the room");
             case Membership::Ban:
                 if (e.senderId() != e.userId()) {
                     return i18n("banned a user from the room");
                 } else {
                     return i18n("self-banned from the room");
                 }
             case Membership::Knock: {
                 return i18n("requested an invite");
             }
             default:;
             }
             return i18n("made something unknown");
         },
         [](const RoomCanonicalAliasEvent &e) {
             return (e.alias().isEmpty()) ? i18n("cleared the room main alias") : i18n("set the room main alias");
         },
         [](const RoomNameEvent &e) {
             return (e.name().isEmpty()) ? i18n("cleared the room name") : i18n("set the room name");
         },
         [](const RoomTopicEvent &e) {
             return (e.topic().isEmpty()) ? i18n("cleared the topic") : i18n("set the topic");
         },
         [](const RoomAvatarEvent &) {
             return i18n("changed the room avatar");
         },
         [](const EncryptionEvent &) {
             return i18n("activated End-to-End Encryption");
         },
         [](const RoomCreateEvent &e) {
             return e.isUpgrade() ? i18n("upgraded the room version") : i18n("created the room");
         },
         [](const RoomPowerLevelsEvent &) {
             return i18nc("'power level' means permission level", "changed the power levels for this room");
         },
         [](const StateEvent &e) {
             if (e.matrixType() == QLatin1String("m.room.server_acl")) {
                 return i18n("changed the server access control lists for this room");
             }
             if (e.matrixType() == QLatin1String("im.vector.modular.widgets")) {
                 if (e.fullJson()["unsigned"_ls]["prev_content"_ls].toObject().isEmpty()) {
                     return i18n("added a widget");
                 }
                 if (e.contentJson().isEmpty()) {
                     return i18n("removed a widget");
                 }
                 return i18n("configured a widget");
             }
             return i18n("updated the state");
         },
         [](const PollStartEvent &e) {
             Q_UNUSED(e);
             return i18n("started a poll");
         },
         i18n("Unknown event"));
 }
 
 QString EventHandler::subtitleText() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "subtitleText called with m_event set to nullptr.";
         return {};
     }
     return singleLineAuthorDisplayname() + (m_event->isStateEvent() ? QLatin1String(" ") : QLatin1String(": ")) + getPlainBody(true);
 }
 
 QVariantMap EventHandler::getMediaInfo() const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getMediaInfo called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getMediaInfo called with m_event set to nullptr.";
         return {};
     }
     return getMediaInfoForEvent(m_event);
 }
 
 QVariantMap EventHandler::getMediaInfoForEvent(const Quotient::RoomEvent *event) const
 {
     QString eventId = event->id();
 
     // Get the file info for the event.
     const EventContent::FileInfo *fileInfo;
     if (event->is<RoomMessageEvent>()) {
         auto roomMessageEvent = eventCast<const RoomMessageEvent>(event);
         if (!roomMessageEvent->hasFileContent()) {
             return {};
         }
         fileInfo = roomMessageEvent->content()->fileInfo();
     } else if (event->is<StickerEvent>()) {
         auto stickerEvent = eventCast<const StickerEvent>(event);
         fileInfo = &stickerEvent->image();
     } else {
         return {};
     }
 
     return getMediaInfoFromFileInfo(fileInfo, eventId);
 }
 
 QVariantMap EventHandler::getMediaInfoFromFileInfo(const EventContent::FileInfo *fileInfo, const QString &eventId, bool isThumbnail) const
 {
     QVariantMap mediaInfo;
 
     // Get the mxc URL for the media.
     if (!fileInfo->url().isValid() || fileInfo->url().scheme() != QStringLiteral("mxc") || eventId.isEmpty()) {
         mediaInfo["source"_ls] = QUrl();
     } else {
         QUrl source = m_room->makeMediaUrl(eventId, fileInfo->url());
 
         if (source.isValid()) {
             mediaInfo["source"_ls] = source;
         } else {
             mediaInfo["source"_ls] = QUrl();
         }
     }
 
     auto mimeType = fileInfo->mimeType;
     // Add the MIME type for the media if available.
     mediaInfo["mimeType"_ls] = mimeType.name();
 
     // Add the MIME type icon if available.
     mediaInfo["mimeIcon"_ls] = mimeType.iconName();
 
     // Add media size if available.
     mediaInfo["size"_ls] = fileInfo->payloadSize;
 
     // Add parameter depending on media type.
     if (mimeType.name().contains(QStringLiteral("image"))) {
         if (auto castInfo = static_cast<const EventContent::ImageContent *>(fileInfo)) {
             mediaInfo["width"_ls] = castInfo->imageSize.width();
             mediaInfo["height"_ls] = castInfo->imageSize.height();
 
             // TODO: Images in certain formats (e.g. WebP) will be erroneously marked as animated, even if they are static.
             mediaInfo["animated"_ls] = QMovie::supportedFormats().contains(mimeType.preferredSuffix().toUtf8());
 
             if (!isThumbnail) {
                 QVariantMap tempInfo;
                 auto thumbnailInfo = getMediaInfoFromFileInfo(castInfo->thumbnailInfo(), eventId, true);
                 if (thumbnailInfo["source"_ls].toUrl().scheme() == "mxc"_ls) {
                     tempInfo = thumbnailInfo;
                 } else {
                     QString blurhash = castInfo->originalInfoJson["xyz.amorgan.blurhash"_ls].toString();
                     if (blurhash.isEmpty()) {
                         tempInfo["source"_ls] = QUrl();
                     } else {
                         tempInfo["source"_ls] = QUrl("image://blurhash/"_ls + blurhash);
                     }
                 }
                 mediaInfo["tempInfo"_ls] = tempInfo;
             }
         }
     }
     if (mimeType.name().contains(QStringLiteral("video"))) {
         if (auto castInfo = static_cast<const EventContent::VideoContent *>(fileInfo)) {
             mediaInfo["width"_ls] = castInfo->imageSize.width();
             mediaInfo["height"_ls] = castInfo->imageSize.height();
             mediaInfo["duration"_ls] = castInfo->duration;
 
             if (!isThumbnail) {
                 QVariantMap tempInfo;
                 auto thumbnailInfo = getMediaInfoFromFileInfo(castInfo->thumbnailInfo(), eventId, true);
                 if (thumbnailInfo["source"_ls].toUrl().scheme() == "mxc"_ls) {
                     tempInfo = thumbnailInfo;
                 } else {
                     QString blurhash = castInfo->originalInfoJson["xyz.amorgan.blurhash"_ls].toString();
                     if (blurhash.isEmpty()) {
                         tempInfo["source"_ls] = QUrl();
                     } else {
                         tempInfo["source"_ls] = QUrl("image://blurhash/"_ls + blurhash);
                     }
                 }
                 mediaInfo["tempInfo"_ls] = tempInfo;
             }
         }
     }
     if (mimeType.name().contains(QStringLiteral("audio"))) {
         if (auto castInfo = static_cast<const EventContent::AudioContent *>(fileInfo)) {
             mediaInfo["duration"_ls] = castInfo->duration;
         }
     }
 
     return mediaInfo;
 }
 
 bool EventHandler::hasReply() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "hasReply called with m_event set to nullptr.";
         return false;
     }
     return !m_event->contentJson()["m.relates_to"_ls].toObject()["m.in_reply_to"_ls].toObject()["event_id"_ls].toString().isEmpty();
 }
 
 QString EventHandler::getReplyId() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReplyId called with m_event set to nullptr.";
         return {};
     }
     return m_event->contentJson()["m.relates_to"_ls].toObject()["m.in_reply_to"_ls].toObject()["event_id"_ls].toString();
 }
 
 DelegateType::Type EventHandler::getReplyDelegateType() const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getReplyDelegateType called with m_room set to nullptr.";
         return DelegateType::Other;
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReplyDelegateType called with m_event set to nullptr.";
         return DelegateType::Other;
     }
 
     auto replyEvent = m_room->getReplyForEvent(*m_event);
     if (replyEvent == nullptr) {
         return DelegateType::Other;
     }
     return getDelegateTypeForEvent(replyEvent);
 }
 
 QVariantMap EventHandler::getReplyAuthor() const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getReplyAuthor called with m_room set to nullptr.";
         return {};
     }
     // If we have a room we can return an empty user by handing nullptr to m_room->getUser.
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReplyAuthor called with m_event set to nullptr. Returning empty user.";
         return m_room->getUser(nullptr);
     }
 
     auto replyPtr = m_room->getReplyForEvent(*m_event);
 
     if (replyPtr) {
         auto replyUser = m_room->user(replyPtr->senderId());
         return m_room->getUser(replyUser);
     } else {
         return m_room->getUser(nullptr);
     }
 }
 
 QString EventHandler::getReplyRichBody(bool stripNewlines) const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getReplyRichBody called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReplyRichBody called with m_event set to nullptr.";
         return {};
     }
 
     auto replyEvent = m_room->getReplyForEvent(*m_event);
     if (replyEvent == nullptr) {
         return {};
     }
 
     return getBody(replyEvent, Qt::RichText, stripNewlines);
 }
 
 QString EventHandler::getReplyPlainBody(bool stripNewlines) const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getReplyPlainBody called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReplyPlainBody called with m_event set to nullptr.";
         return {};
     }
 
     auto replyEvent = m_room->getReplyForEvent(*m_event);
     if (replyEvent == nullptr) {
         return {};
     }
 
     return getBody(replyEvent, Qt::PlainText, stripNewlines);
 }
 
 QVariantMap EventHandler::getReplyMediaInfo() const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getReplyMediaInfo called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReplyMediaInfo called with m_event set to nullptr.";
         return {};
     }
 
     auto replyPtr = m_room->getReplyForEvent(*m_event);
     if (!replyPtr) {
         return {};
     }
     return getMediaInfoForEvent(replyPtr);
 }
 
 bool EventHandler::isThreaded() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "isThreaded called with m_event set to nullptr.";
         return false;
     }
 
     return (m_event->contentPart<QJsonObject>("m.relates_to"_ls).contains("rel_type"_ls)
             && m_event->contentPart<QJsonObject>("m.relates_to"_ls)["rel_type"_ls].toString() == "m.thread"_ls)
         || (!m_event->unsignedPart<QJsonObject>("m.relations"_ls).isEmpty() && m_event->unsignedPart<QJsonObject>("m.relations"_ls).contains("m.thread"_ls));
 }
 
 QString EventHandler::threadRoot() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "threadRoot called with m_event set to nullptr.";
         return {};
     }
 
     // Get the thread root ID from m.relates_to if it exists.
     if (m_event->contentPart<QJsonObject>("m.relates_to"_ls).contains("rel_type"_ls)
         && m_event->contentPart<QJsonObject>("m.relates_to"_ls)["rel_type"_ls].toString() == "m.thread"_ls) {
         return m_event->contentPart<QJsonObject>("m.relates_to"_ls)["event_id"_ls].toString();
     }
     // For thread root events they have an m.relations in the unsigned part with a m.thread object.
     // If so return the event ID as it is the root.
     if (!m_event->unsignedPart<QJsonObject>("m.relations"_ls).isEmpty() && m_event->unsignedPart<QJsonObject>("m.relations"_ls).contains("m.thread"_ls)) {
         return getId();
     }
     return {};
 }
 
 float EventHandler::getLatitude() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getLatitude called with m_event set to nullptr.";
         return -100.0;
     }
 
     const auto geoUri = m_event->contentJson()["geo_uri"_ls].toString();
     if (geoUri.isEmpty()) {
         return -100.0; // latitude runs from -90deg to +90deg so -100 is out of range.
     }
     const auto latitude = geoUri.split(u';')[0].split(u':')[1].split(u',')[0];
     return latitude.toFloat();
 }
 
 float EventHandler::getLongitude() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getLongitude called with m_event set to nullptr.";
         return -200.0;
     }
 
     const auto geoUri = m_event->contentJson()["geo_uri"_ls].toString();
     if (geoUri.isEmpty()) {
         return -200.0; // longitude runs from -180deg to +180deg so -200 is out of range.
     }
     const auto latitude = geoUri.split(u';')[0].split(u':')[1].split(u',')[1];
     return latitude.toFloat();
 }
 
 QString EventHandler::getLocationAssetType() const
 {
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getLocationAssetType called with m_event set to nullptr.";
         return {};
     }
 
     const auto assetType = m_event->contentJson()["org.matrix.msc3488.asset"_ls].toObject()["type"_ls].toString();
     if (assetType.isEmpty()) {
         return {};
     }
     return assetType;
 }
 
 bool EventHandler::hasReadMarkers() const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "hasReadMarkers called with m_room set to nullptr.";
         return false;
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "hasReadMarkers called with m_event set to nullptr.";
         return false;
     }
 
     auto userIds = m_room->userIdsAtEvent(m_event->id());
     userIds.remove(m_room->localUser()->id());
     return userIds.size() > 0;
 }
 
 QVariantList EventHandler::getReadMarkers(int maxMarkers) const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getReadMarkers called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReadMarkers called with m_event set to nullptr.";
         return {};
     }
 
     auto userIds_temp = m_room->userIdsAtEvent(m_event->id());
     userIds_temp.remove(m_room->localUser()->id());
 
     auto userIds = userIds_temp.values();
     if (userIds.count() > maxMarkers) {
         userIds = userIds.mid(0, maxMarkers);
     }
 
     QVariantList users;
     users.reserve(userIds.size());
     for (const auto &userId : userIds) {
         auto user = m_room->user(userId);
         users += m_room->getUser(user);
     }
 
     return users;
 }
 
 QString EventHandler::getNumberExcessReadMarkers(int maxMarkers) const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getNumberExcessReadMarkers called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getNumberExcessReadMarkers called with m_event set to nullptr.";
         return {};
     }
 
     auto userIds = m_room->userIdsAtEvent(m_event->id());
     userIds.remove(m_room->localUser()->id());
 
     if (userIds.count() > maxMarkers) {
         return QStringLiteral("+ ") + QString::number(userIds.count() - maxMarkers);
     } else {
         return QString();
     }
 }
 
 QString EventHandler::getReadMarkersString() const
 {
     if (m_room == nullptr) {
         qCWarning(EventHandling) << "getReadMarkersString called with m_room set to nullptr.";
         return {};
     }
     if (m_event == nullptr) {
         qCWarning(EventHandling) << "getReadMarkersString called with m_event set to nullptr.";
         return {};
     }
 
     auto userIds = m_room->userIdsAtEvent(m_event->id());
     userIds.remove(m_room->localUser()->id());
 
     /**
      * The string ends up in the form
      * "x users: user1DisplayName, user2DisplayName, etc."
      */
     QString readMarkersString = i18np("1 user: ", "%1 users: ", userIds.size());
     for (const auto &userId : userIds) {
         auto user = m_room->user(userId);
         readMarkersString += user->displayname(m_room) + i18nc("list separator", ", ");
     }
     readMarkersString.chop(2);
     return readMarkersString;
 }
 
 #include "moc_eventhandler.cpp"