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/* packet_dialog.cpp
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "packet_dialog.h"
#include <ui_packet_dialog.h>
#include "file.h"
#include "epan/column.h"
#include "epan/ftypes/ftypes.h"
#include "epan/prefs.h"
#include "ui/preference_utils.h"
#include "frame_tvbuff.h"
#include <wsutil/utf8_entities.h>
#include "byte_view_tab.h"
#include "proto_tree.h"
#include "main_application.h"
#include <ui/qt/utils/field_information.h>
#include <QTreeWidgetItemIterator>
// To do:
// - Copy over experimental packet editing code.
// - Fix ElidedText width.
PacketDialog::PacketDialog(QWidget &parent, CaptureFile &cf, frame_data *fdata) :
WiresharkDialog(parent, cf),
ui(new Ui::PacketDialog),
proto_tree_(NULL),
byte_view_tab_(NULL)
{
ui->setupUi(this);
loadGeometry(parent.width() * 4 / 5, parent.height() * 4 / 5);
ui->hintLabel->setSmallText();
wtap_rec_init(&rec_);
ws_buffer_init(&buf_, 1514);
edt_.session = NULL;
edt_.tvb = NULL;
edt_.tree = NULL;
memset(&edt_.pi, 0x0, sizeof(edt_.pi));
setWindowSubtitle(tr("Packet %1").arg(fdata->num));
if (!cf_read_record(cap_file_.capFile(), fdata, &rec_, &buf_)) {
reject();
return;
}
/* proto tree, visible. We need a proto tree if there are custom columns */
epan_dissect_init(&edt_, cap_file_.capFile()->epan, TRUE, TRUE);
col_custom_prime_edt(&edt_, &(cap_file_.capFile()->cinfo));
epan_dissect_run(&edt_, cap_file_.capFile()->cd_t, &rec_,
frame_tvbuff_new_buffer(&cap_file_.capFile()->provider, fdata, &buf_),
fdata, &(cap_file_.capFile()->cinfo));
epan_dissect_fill_in_columns(&edt_, TRUE, TRUE);
proto_tree_ = new ProtoTree(ui->packetSplitter, &edt_);
// Do not call proto_tree_->setCaptureFile, ProtoTree only needs the
// dissection context.
proto_tree_->setRootNode(edt_.tree);
byte_view_tab_ = new ByteViewTab(ui->packetSplitter, &edt_);
byte_view_tab_->setCaptureFile(cap_file_.capFile());
byte_view_tab_->selectedFrameChanged(QList<int>() << 0);
ui->packetSplitter->setStretchFactor(1, 0);
QStringList col_parts;
for (int i = 0; i < cap_file_.capFile()->cinfo.num_cols; ++i) {
// ElidedLabel doesn't support rich text / HTML
col_parts << QString("%1: %2")
.arg(get_column_title(i))
.arg(get_column_text(&cap_file_.capFile()->cinfo, i));
}
col_info_ = col_parts.join(" " UTF8_MIDDLE_DOT " ");
ui->hintLabel->setText(col_info_);
/* Handle preference value correctly */
Qt::CheckState state = Qt::Checked;
if (!prefs.gui_packet_details_show_byteview) {
state = Qt::Unchecked;
byte_view_tab_->setVisible(false);
}
ui->chkShowByteView->setCheckState(state);
connect(mainApp, SIGNAL(zoomMonospaceFont(QFont)),
proto_tree_, SLOT(setMonospaceFont(QFont)));
connect(byte_view_tab_, SIGNAL(fieldSelected(FieldInformation *)),
proto_tree_, SLOT(selectedFieldChanged(FieldInformation *)));
connect(proto_tree_, SIGNAL(fieldSelected(FieldInformation *)),
byte_view_tab_, SLOT(selectedFieldChanged(FieldInformation *)));
connect(byte_view_tab_, SIGNAL(fieldHighlight(FieldInformation *)),
this, SLOT(setHintText(FieldInformation *)));
connect(byte_view_tab_, &ByteViewTab::fieldSelected,
this, &PacketDialog::setHintTextSelected);
connect(proto_tree_, &ProtoTree::fieldSelected,
this, &PacketDialog::setHintTextSelected);
connect(proto_tree_, SIGNAL(showProtocolPreferences(QString)),
this, SIGNAL(showProtocolPreferences(QString)));
connect(proto_tree_, SIGNAL(editProtocolPreference(preference*,pref_module*)),
this, SIGNAL(editProtocolPreference(preference*,pref_module*)));
connect(ui->chkShowByteView, &QCheckBox::stateChanged, this, &PacketDialog::viewVisibilityStateChanged);
}
PacketDialog::~PacketDialog()
{
delete ui;
epan_dissect_cleanup(&edt_);
wtap_rec_cleanup(&rec_);
ws_buffer_free(&buf_);
}
void PacketDialog::captureFileClosing()
{
QString closed_title = tr("[%1 closed] " UTF8_MIDDLE_DOT " %2")
.arg(cap_file_.fileName())
.arg(col_info_);
ui->hintLabel->setText(closed_title);
byte_view_tab_->captureFileClosing();
WiresharkDialog::captureFileClosing();
}
void PacketDialog::on_buttonBox_helpRequested()
{
mainApp->helpTopicAction(HELP_NEW_PACKET_DIALOG);
}
void PacketDialog::setHintText(FieldInformation * finfo)
{
QString hint;
if (finfo)
{
FieldInformation::Position pos = finfo->position();
QString field_str;
if (pos.length < 2) {
hint = QString(tr("Byte %1")).arg(pos.start);
} else {
hint = QString(tr("Bytes %1-%2")).arg(pos.start).arg(pos.start + pos.length - 1);
}
hint += QString(": %1 (%2)")
.arg(finfo->headerInfo().name)
.arg(finfo->headerInfo().abbreviation);
}
else {
hint = col_info_;
}
ui->hintLabel->setText(hint);
}
void PacketDialog::setHintTextSelected(FieldInformation* finfo)
{
QString hint;
if (finfo)
{
FieldInformation::HeaderInfo hInfo = finfo->headerInfo();
if (hInfo.isValid)
{
if (hInfo.description.length() > 0) {
hint.append(hInfo.description);
}
else {
hint.append(hInfo.name);
}
}
if (!hint.isEmpty()) {
int finfo_length;
if (hInfo.isValid)
hint.append(" (" + hInfo.abbreviation + ")");
finfo_length = finfo->position().length + finfo->appendix().length;
if (finfo_length > 0) {
hint.append(", " + tr("%Ln byte(s)", "", finfo_length));
}
}
}
else {
hint = col_info_;
}
ui->hintLabel->setText(hint);
}
void PacketDialog::viewVisibilityStateChanged(int state)
{
byte_view_tab_->setVisible(state == Qt::Checked);
prefs.gui_packet_details_show_byteview = (state == Qt::Checked ? TRUE : FALSE);
prefs_main_write();
}
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