ewsfetchmaildetailjob.cpp

/*  This file is part of Akonadi EWS Resource
    Copyright (C) 2015-2016 Krzysztof Nowicki <krissn@op.pl>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include "ewsfetchmaildetailjob.h"

#include <KMime/Message>
#include <KMime/HeaderParsing>
#include <Akonadi/KMime/MessageFlags>

#include "ewsitemshape.h"
#include "ewsgetitemrequest.h"
#include "ewsmailbox.h"
#include "ewsmailhandler.h"
#include "ewsclient_debug.h"

using namespace Akonadi;

EwsFetchMailDetailJob::EwsFetchMailDetailJob(EwsClient &client, QObject *parent, const Akonadi::Collection &collection)
    : EwsFetchItemDetailJob(client, parent, collection)
{
    EwsItemShape shape(EwsShapeIdOnly);
    shape << EwsPropertyField("item:Subject");
    shape << EwsPropertyField("item:Importance");
    shape << EwsPropertyField("message:From");
    shape << EwsPropertyField("message:ToRecipients");
    shape << EwsPropertyField("message:CcRecipients");
    shape << EwsPropertyField("message:BccRecipients");
    shape << EwsPropertyField("item:Categories");
    shape << EwsPropertyField("item:DateTimeReceived");
    shape << EwsPropertyField("item:InReplyTo");
    shape << EwsPropertyField("message:References");
    shape << EwsPropertyField("message:ReplyTo");
    shape << EwsPropertyField("message:InternetMessageId");
    shape << EwsPropertyField("item:Size");
    Q_FOREACH(const EwsPropertyField &field, EwsMailHandler::flagsProperties()) {
        shape << field;
    }
    Q_FOREACH(const EwsPropertyField &field, EwsItemHandler::tagsProperties()) {
        shape << field;
    }
    mRequest->setItemShape(shape);
}


EwsFetchMailDetailJob::~EwsFetchMailDetailJob()
{
}

void EwsFetchMailDetailJob::processItems(const QList<EwsGetItemRequest::Response> &responses)
{
    Item::List::iterator it = mChangedItems.begin();

    Q_FOREACH(const EwsGetItemRequest::Response &resp, responses) {
        Item &item = *it;

        if (!resp.isSuccess()) {
            qCWarningNC(EWSRES_LOG) << QStringLiteral("Failed to fetch item %1").arg(item.remoteId());
            continue;
        }

        const EwsItem &ewsItem = resp.item();
        KMime::Message::Ptr msg(new KMime::Message);

        // Rebuild the message headers
        QVariant v = ewsItem[EwsItemFieldSubject];
        if (Q_LIKELY(v.isValid())) {
            msg->subject()->fromUnicodeString(v.toString(), "utf-8");
        }

        v = ewsItem[EwsItemFieldFrom];
        if (Q_LIKELY(v.isValid())) {
            EwsMailbox mbox = v.value<EwsMailbox>();
            msg->from()->addAddress(mbox);
        }

        v = ewsItem[EwsItemFieldToRecipients];
        if (Q_LIKELY(v.isValid())) {
            EwsMailbox::List mboxList = v.value<EwsMailbox::List>();
            QStringList addrList;
            Q_FOREACH(const EwsMailbox &mbox, mboxList) {
                msg->to()->addAddress(mbox);
            }
        }

        v = ewsItem[EwsItemFieldCcRecipients];
        if (Q_LIKELY(v.isValid())) {
            EwsMailbox::List mboxList = v.value<EwsMailbox::List>();
            QStringList addrList;
            Q_FOREACH(const EwsMailbox &mbox, mboxList) {
                msg->cc()->addAddress(mbox);
            }
        }

        v = ewsItem[EwsItemFieldBccRecipients];
        if (v.isValid()) {
            EwsMailbox::List mboxList = v.value<EwsMailbox::List>();
            QStringList addrList;
            Q_FOREACH(const EwsMailbox &mbox, mboxList) {
                msg->bcc()->addAddress(mbox);
            }
        }

        v = ewsItem[EwsItemFieldInternetMessageId];
        if (v.isValid()) {
            msg->messageID()->from7BitString(v.toString().toAscii());
        }

        v = ewsItem[EwsItemFieldInReplyTo];
        if (v.isValid()) {
            msg->inReplyTo()->from7BitString(v.toString().toAscii());
        }

        v = ewsItem[EwsItemFieldDateTimeReceived];
        if (v.isValid()) {
            msg->date()->setDateTime(v.toDateTime());
        }

        v = ewsItem[EwsItemFieldReferences];
        if (v.isValid()) {
            msg->references()->from7BitString(v.toString().toAscii());
        }

        v = ewsItem[EwsItemFieldReplyTo];
        if (v.isValid()) {
            EwsMailbox mbox = v.value<EwsMailbox>();
            msg->replyTo()->addAddress(mbox);
        }

        msg->assemble();
        item.setPayload(KMime::Message::Ptr(msg));

        v = ewsItem[EwsItemFieldSize];
        if (v.isValid()) {
            item.setSize(v.toUInt());
        }

        // Workaround for Akonadi bug
        // When setting flags, adding each of them separately vs. setting a list in one go makes
        // a difference. In the former case the item treats this as an incremental change and
        // records flags added and removed. In the latter it sets a flag indicating that flags were
        // reset.
        // For some strange reason Akonadi is not seeing the flags in the latter case.
        Q_FOREACH(const QByteArray &flag, EwsMailHandler::readFlags(ewsItem)) {
            item.setFlag(flag);
        }
        qCDebugNC(EWSRES_LOG) << "EwsFetchMailDetailJob::processItems:" << ewsHash(item.remoteId()) << item.flags();

        it++;
    }

    qCDebugNC(EWSRES_LOG) << "EwsFetchMailDetailJob::processItems: done";

    emitResult();
}