KGpgRefNode.cpp

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/* Copyright 2008,2009,2010,2013 Rolf Eike Beer <kde@opensource.sf-tec.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License or (at your option) version 3 or any later version
 * accepted by the membership of KDE e.V. (or its successor approved
 * by the membership of KDE e.V.), which shall act as a proxy
 * defined in Section 14 of version 3 of the license.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include "KGpgRefNode.h"

#include <KLocale>

#include "KGpgExpandableNode.h"
#include "KGpgRootNode.h"

KGpgRefNode::KGpgRefNode(KGpgExpandableNode *parent, const QString &keyid)
    : KGpgNode(parent),
    m_id(keyid)
{
    Q_ASSERT(!keyid.isEmpty());

    KGpgRootNode *root = getRootNode();
    KGpgExpandableNode *pnd = parent;

    do {
        m_selfsig = (pnd->getId().right(keyid.length()) == keyid);
        if (m_selfsig)
            m_keynode = pnd->toKeyNode();
        else
            pnd = pnd->getParentKeyNode();
    } while (!m_selfsig && (pnd != root));

    // Self signatures do net need to get notified by their key: if the key is changed
    // the key node is deleted, then those refnode would be deleted anyway. This avoids
    // crashes when they would try to find the root node by iterating over their parent
    // when the parents destructor is already called (see bug 208659).
    if (!m_selfsig) {
        m_keynode = root->findKey(keyid);

        if (m_keynode != NULL) {
            m_keynode->addRef(this);
        } else {
            connect(root, SIGNAL(newKeyNode(KGpgKeyNode*)), this, SLOT(keyUpdated(KGpgKeyNode*)));
        }
    }

    parent->children.append(this);
}

KGpgRefNode::KGpgRefNode(KGpgExpandableNode *parent, KGpgKeyNode *key)
    : KGpgNode(parent),
    m_id(key->getId()),
    m_keynode(key)
{
    Q_ASSERT(key != NULL);
    Q_ASSERT(parent != NULL);
    m_keynode->addRef(this);

    parent->children.append(this);
}

KGpgRefNode::~KGpgRefNode()
{
    if (m_keynode && !m_selfsig)
        m_keynode->delRef(this);
}

KGpgRootNode *
KGpgRefNode::getRootNode() const
{
    KGpgExpandableNode *root;
    KGpgExpandableNode *pt = m_parent;

    do {
        root = pt;
        pt = pt->getParentKeyNode();
    } while (pt != NULL);

    return root->toRootNode();
}

void
KGpgRefNode::keyUpdated(KGpgKeyNode *nkey)
{
    Q_ASSERT(m_keynode == NULL);
    Q_ASSERT(nkey != NULL);

    if (nkey->compareId(m_id)) {
        disconnect(sender(), NULL, this, SLOT(keyUpdated(KGpgKeyNode*)));
        m_keynode = nkey;
        m_keynode->addRef(this);
    }
}

void
KGpgRefNode::unRef(KGpgRootNode *root)
{
    if (root != NULL)
        connect(root, SIGNAL(newKeyNode(KGpgKeyNode*)), this, SLOT(keyUpdated(KGpgKeyNode*)));

    m_keynode = NULL;
}

QString
KGpgRefNode::getId() const
{
    if (m_keynode != NULL)
        return m_keynode->getFingerprint();
    else
        return m_id;
}

QString
KGpgRefNode::getName() const
{
    if (m_keynode != NULL)
        return m_keynode->getName();
    return i18n("[No user id found]");
}

QString
KGpgRefNode::getEmail() const
{
    if (m_keynode != NULL)
        return m_keynode->getEmail();
    return QString();
}

bool
KGpgRefNode::isUnknown() const
{
    return (m_keynode == NULL);
}

KGpgKeyNode *
KGpgRefNode::getRefNode() const
{
    return m_keynode;
}

#include "KGpgRefNode.moc"