src/Imap/Tasks/FetchMsgMetadataTask.cpp

   1 /* Copyright (C) 2006 - 2014 Jan Kundrát <jkt@flaska.net>
   2
   3    This file is part of the Trojita Qt IMAP e-mail client,
   4    http://trojita.flaska.net/
   5
   6    This program is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU General Public License as
   8    published by the Free Software Foundation; either version 2 of
   9    the License or (at your option) version 3 or any later version
  10    accepted by the membership of KDE e.V. (or its successor approved
  11    by the membership of KDE e.V.), which shall act as a proxy
  12    defined in Section 14 of version 3 of the license.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23
  24 #include "FetchMsgMetadataTask.h"
  25 #include "Imap/Model/ItemRoles.h"
  26 #include "Imap/Model/Model.h"
  27 #include "Imap/Model/MailboxTree.h"
  28 #include "KeepMailboxOpenTask.h"
  29
  30 namespace Imap
  31 {
  32 namespace Mailbox
  33 {
  34
  35 FetchMsgMetadataTask::FetchMsgMetadataTask(Model *model, const QModelIndex &mailbox, const Imap::Uids &uids) :
  36     ImapTask(model), mailbox(mailbox), uids(uids)
  37 {
  38     Q_ASSERT(!uids.isEmpty());
  39     conn = model->findTaskResponsibleFor(mailbox);
  40     conn->addDependentTask(this);
  41 }
  42
  43 void FetchMsgMetadataTask::perform()
  44 {
  45     parser = conn->parser;
  46     markAsActiveTask();
  47
  48     IMAP_TASK_CHECK_ABORT_DIE;
  49
  50     Sequence seq = Sequence::fromVector(uids);
  51
  52     // we do not want to use _onlineMessageFetch because it contains UID and FLAGS
  53     tag = parser->uidFetch(seq, QList<QByteArray>() << "ENVELOPE" << "INTERNALDATE" <<
  54                            "BODYSTRUCTURE" << "RFC822.SIZE" << "BODY.PEEK[HEADER.FIELDS (References List-Post)]");
  55 }
  56
  57 bool FetchMsgMetadataTask::handleFetch(const Imap::Responses::Fetch *const resp)
  58 {
  59     if (! mailbox.isValid()) {
  60         _failed(tr("handleFetch: mailbox disappeared"));
  61         // FIXME: nice error handling
  62         return false;
  63     }
  64     TreeItemMailbox *mailboxPtr = dynamic_cast<TreeItemMailbox *>(static_cast<TreeItemMailbox *>(mailbox.internalPointer()));
  65     Q_ASSERT(mailboxPtr);
  66     model->genericHandleFetch(mailboxPtr, resp);
  67     return true;
  68 }
  69
  70 bool FetchMsgMetadataTask::handleStateHelper(const Imap::Responses::State *const resp)
  71 {
  72     if (resp->tag.isEmpty())
  73         return false;
  74
  75     if (resp->tag == tag) {
  76
  77         if (resp->kind == Responses::OK) {
  78             _completed();
  79         } else {
  80             _failed(tr("UID FETCH failed"));
  81             // FIXME: error handling
  82         }
  83         return true;
  84     } else {
  85         return false;
  86     }
  87 }
  88
  89 QString FetchMsgMetadataTask::debugIdentification() const
  90 {
  91     if (!mailbox.isValid())
  92         return QStringLiteral("[invalid mailbox]");
  93
  94     Q_ASSERT(!uids.isEmpty());
  95     return QString::fromUtf8("%1: UIDs %2").arg(mailbox.data(RoleMailboxName).toString(),
  96                                                 QString::fromUtf8(Sequence::fromVector(uids).toByteArray()));
  97 }
  98
  99 QVariant FetchMsgMetadataTask::taskData(const int role) const
 100 {
 101     return role == RoleTaskCompactName ? QVariant(tr("Downloading headers")) : QVariant();
 102 }
 103
 104 }
 105 }