2016-02-07 21:15:12 +00:00
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/* show_packet_bytes_dialog.cpp
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "show_packet_bytes_dialog.h"
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#include <ui_show_packet_bytes_dialog.h>
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#include "main_window.h"
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#include "wireshark_application.h"
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#include "epan/charsets.h"
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#include <wsutil/utf8_entities.h>
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#include <QImage>
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#include <QKeyEvent>
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#include <QPrintDialog>
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#include <QPrinter>
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#include <QTextStream>
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// To do:
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// - Add show as custom protocol in a Packet Details view
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// - Add show as PDF or handle PDF as Image
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// - Add decode from BASE64
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2016-02-10 08:07:13 +00:00
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// - Use ByteViewText to ShowAsHexDump and supplementary view for custom protocol
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2016-02-07 21:15:12 +00:00
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// - Handle large data blocks
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ShowPacketBytesDialog::ShowPacketBytesDialog(QWidget &parent, CaptureFile &cf) :
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WiresharkDialog(parent, cf),
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ui(new Ui::ShowPacketBytesDialog),
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show_as_(ShowAsASCII)
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{
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ui->setupUi(this);
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field_info *finfo = cf.capFile()->finfo_selected;
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setWindowSubtitle (QString("%1 (%2)").arg(finfo->hfinfo->name, finfo->hfinfo->abbrev));
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const guint8 *bytes = tvb_get_ptr(finfo->ds_tvb, 0, -1) + finfo->start;
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field_bytes_ = QByteArray((const char *)bytes, finfo->length);
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// Try loading as image
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if (image_.loadFromData(field_bytes_)) {
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show_as_ = ShowAsImage;
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}
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ui->tePacketBytes->installEventFilter(this);
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// XXX Use recent settings instead
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resize(parent.width() * 2 / 3, parent.height());
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ui->cbShowAs->blockSignals(true);
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ui->cbShowAs->addItem(tr("ASCII"), ShowAsASCII);
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ui->cbShowAs->addItem(tr("EBCDIC"), ShowAsEBCDIC);
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2016-02-10 08:07:13 +00:00
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ui->cbShowAs->addItem(tr("Hex Dump"), ShowAsHexDump);
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2016-02-07 21:15:12 +00:00
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ui->cbShowAs->addItem(tr("HTML"), ShowAsHTML);
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ui->cbShowAs->addItem(tr("Image"), ShowAsImage);
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ui->cbShowAs->addItem(tr("ISO 8859-1"), ShowAsISO8859_1);
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ui->cbShowAs->addItem(tr("Raw"), ShowAsRAW);
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ui->cbShowAs->addItem(tr("UTF-8"), ShowAsUTF8);
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ui->cbShowAs->setCurrentIndex(show_as_);
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ui->cbShowAs->blockSignals(false);
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print_button_ = ui->buttonBox->addButton(tr("Print"), QDialogButtonBox::ActionRole);
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connect(print_button_, SIGNAL(clicked()), this, SLOT(printBytes()));
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copy_button_ = ui->buttonBox->addButton(tr("Copy"), QDialogButtonBox::ActionRole);
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connect(copy_button_, SIGNAL(clicked()), this, SLOT(copyBytes()));
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save_as_button_ = ui->buttonBox->addButton(tr("Save as" UTF8_HORIZONTAL_ELLIPSIS), QDialogButtonBox::ActionRole);
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connect(save_as_button_, SIGNAL(clicked()), this, SLOT(saveAs()));
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connect(ui->buttonBox, SIGNAL(helpRequested()), this, SLOT(helpButton()));
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connect(&cap_file_, SIGNAL(captureFileClosing()), this, SLOT(captureFileClosing()));
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updatePacketBytes();
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}
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ShowPacketBytesDialog::~ShowPacketBytesDialog()
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{
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delete ui;
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}
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void ShowPacketBytesDialog::updateWidgets()
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{
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WiresharkDialog::updateWidgets();
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}
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void ShowPacketBytesDialog::on_cbShowAs_currentIndexChanged(int idx)
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{
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if (idx < 0) return;
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show_as_ = static_cast<ShowAsType>(ui->cbShowAs->itemData(idx).toInt());
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ui->lFind->setEnabled(true);
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ui->leFind->setEnabled(true);
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ui->bFind->setEnabled(true);
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print_button_->setEnabled(true);
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copy_button_->setEnabled(true);
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save_as_button_->setEnabled(true);
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updatePacketBytes();
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}
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void ShowPacketBytesDialog::findText(bool go_back)
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{
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if (ui->leFind->text().isEmpty()) return;
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bool found = ui->tePacketBytes->find(ui->leFind->text());
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if (found) {
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ui->tePacketBytes->setFocus();
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} else if (go_back) {
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ui->tePacketBytes->moveCursor(QTextCursor::Start);
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findText(false);
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}
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}
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void ShowPacketBytesDialog::printBytes()
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{
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#ifndef QT_NO_PRINTER
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QPrinter printer(QPrinter::HighResolution);
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QPrintDialog dialog(&printer, this);
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if (dialog.exec() == QDialog::Accepted)
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ui->tePacketBytes->print(&printer);
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#endif
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}
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void ShowPacketBytesDialog::copyBytes()
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{
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switch (show_as_) {
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case ShowAsASCII:
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case ShowAsEBCDIC:
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2016-02-10 08:07:13 +00:00
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case ShowAsHexDump:
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2016-02-07 21:15:12 +00:00
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case ShowAsISO8859_1:
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case ShowAsRAW:
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wsApp->clipboard()->setText(ui->tePacketBytes->toPlainText());
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break;
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case ShowAsHTML:
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wsApp->clipboard()->setText(ui->tePacketBytes->toHtml());
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break;
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case ShowAsImage:
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wsApp->clipboard()->setImage(image_);
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break;
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case ShowAsUTF8:
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wsApp->clipboard()->setText(ui->tePacketBytes->toPlainText().toUtf8());
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break;
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}
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}
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void ShowPacketBytesDialog::saveAs()
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{
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QString file_name = QFileDialog::getSaveFileName(this, wsApp->windowTitleString(tr("Save Selected Packet Bytes As" UTF8_HORIZONTAL_ELLIPSIS)));
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if (file_name.isEmpty())
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return;
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QFile file(file_name);
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file.open(QIODevice::WriteOnly);
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switch (show_as_) {
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case ShowAsASCII:
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case ShowAsEBCDIC:
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2016-02-10 08:07:13 +00:00
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case ShowAsHexDump:
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2016-02-07 21:15:12 +00:00
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case ShowAsISO8859_1:
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{
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QTextStream out(&file);
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out << ui->tePacketBytes->toPlainText();
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break;
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}
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case ShowAsHTML:
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{
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QTextStream out(&file);
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out << ui->tePacketBytes->toHtml();
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break;
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}
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case ShowAsUTF8:
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{
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QTextStream out(&file);
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out << ui->tePacketBytes->toPlainText().toUtf8();
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break;
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}
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case ShowAsImage:
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case ShowAsRAW:
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file.write(field_bytes_);
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break;
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}
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file.close();
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}
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void ShowPacketBytesDialog::helpButton()
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{
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wsApp->helpTopicAction(HELP_SHOW_PACKET_BYTES_DIALOG);
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}
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void ShowPacketBytesDialog::on_bFind_clicked()
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{
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findText();
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}
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void ShowPacketBytesDialog::on_leFind_returnPressed()
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{
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findText();
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}
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// Not sure why we have to do this manually.
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void ShowPacketBytesDialog::on_buttonBox_rejected()
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{
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WiresharkDialog::reject();
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}
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// The following keyboard shortcuts should work (although
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// they may not work consistently depending on focus):
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// / (slash), Ctrl-F - Focus and highlight the search box
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// Ctrl-G, Ctrl-N, F3 - Find next
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// Should we make it so that typing any text starts searching?
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bool ShowPacketBytesDialog::eventFilter(QObject *, QEvent *event)
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{
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if (ui->tePacketBytes->hasFocus() && event->type() == QEvent::KeyPress) {
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QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
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if (keyEvent->matches(QKeySequence::SelectAll) || keyEvent->matches(QKeySequence::Copy)
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|| keyEvent->text().isEmpty()) {
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return false;
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}
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ui->leFind->setFocus();
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if (keyEvent->matches(QKeySequence::Find)) {
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return true;
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} else if (keyEvent->matches(QKeySequence::FindNext)) {
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findText();
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return true;
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}
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}
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return false;
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}
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void ShowPacketBytesDialog::keyPressEvent(QKeyEvent *event)
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{
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if (ui->leFind->hasFocus()) {
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if (event->key() == Qt::Key_Enter || event->key() == Qt::Key_Return) {
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findText();
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return;
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}
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} else {
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if (event->key() == Qt::Key_Slash || event->matches(QKeySequence::Find)) {
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ui->leFind->setFocus();
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ui->leFind->selectAll();
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}
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return;
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}
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if (event->key() == Qt::Key_F3 || (event->key() == Qt::Key_N && event->modifiers() & Qt::ControlModifier)) {
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findText();
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return;
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}
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QDialog::keyPressEvent(event);
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}
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static inline void sanitize_buffer(QByteArray &ba)
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{
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for (int i = 0; i < ba.length(); i++) {
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if (!g_ascii_isspace(ba[i]) && !g_ascii_isprint(ba[i])) {
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ba[i] = '.';
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}
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}
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}
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void ShowPacketBytesDialog::updatePacketBytes(void)
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{
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ui->tePacketBytes->clear();
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ui->tePacketBytes->setCurrentFont(wsApp->monospaceFont());
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2016-02-10 08:07:13 +00:00
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ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
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2016-02-07 21:15:12 +00:00
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switch (show_as_) {
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case ShowAsASCII:
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{
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QByteArray ba(field_bytes_);
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sanitize_buffer(ba);
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ui->tePacketBytes->setPlainText(ba);
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break;
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}
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case ShowAsEBCDIC:
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{
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QByteArray ba(field_bytes_);
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EBCDIC_to_ASCII((guint8*)ba.data(), ba.length());
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sanitize_buffer(ba);
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ui->tePacketBytes->setPlainText(ba);
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break;
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}
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2016-02-10 08:07:13 +00:00
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case ShowAsHexDump:
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{
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static const gchar hexchars[16] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
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int pos = 0;
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while (pos < field_bytes_.length()) {
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char hexbuf[256];
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char *cur = hexbuf;
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int i;
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// Dump offset
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cur += g_snprintf(cur, 20, "%08X ", pos);
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// Dump bytes as hex
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for (i = 0; i < 16 && pos + i < field_bytes_.length(); i++) {
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*cur++ = hexchars[(field_bytes_[pos + i] & 0xf0) >> 4];
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*cur++ = hexchars[field_bytes_[pos + i] & 0x0f];
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*cur++ = ' ';
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if (i == 7)
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*cur++ = ' ';
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}
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while (cur < hexbuf + 61)
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*cur++ = ' '; // Fill it up with space to column 61
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// Dump bytes as text
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for (i = 0; i < 16 && pos + i < field_bytes_.length(); i++) {
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if (g_ascii_isprint(field_bytes_[pos + i]))
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*cur++ = field_bytes_[pos + i];
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else
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*cur++ = '.';
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if (i == 7)
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*cur++ = ' ';
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}
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pos += i;
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*cur++ = '\n';
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*cur = 0;
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ui->tePacketBytes->insertPlainText(hexbuf);
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}
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ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
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break;
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}
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2016-02-07 21:15:12 +00:00
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case ShowAsHTML:
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ui->tePacketBytes->setHtml(field_bytes_);
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break;
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case ShowAsImage:
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{
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ui->lFind->setEnabled(false);
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ui->leFind->setEnabled(false);
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ui->bFind->setEnabled(false);
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if (!image_.isNull()) {
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ui->tePacketBytes->textCursor().insertImage(image_);
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} else {
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print_button_->setEnabled(false);
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copy_button_->setEnabled(false);
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save_as_button_->setEnabled(false);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case ShowAsISO8859_1:
|
|
|
|
{
|
|
|
|
guint8 *bytes = get_8859_1_string(NULL, (const guint8 *)field_bytes_.constData(), field_bytes_.length());
|
|
|
|
ui->tePacketBytes->setPlainText((const char *)bytes);
|
|
|
|
wmem_free (NULL, bytes);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case ShowAsUTF8:
|
|
|
|
{
|
|
|
|
// The QString docs say that invalid characters will be replaced with
|
|
|
|
// replacement characters or removed. It would be nice if we could
|
|
|
|
// explicitly choose one or the other.
|
|
|
|
QString utf8 = QString::fromUtf8(field_bytes_);
|
|
|
|
ui->tePacketBytes->setPlainText(utf8);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case ShowAsRAW:
|
|
|
|
ui->tePacketBytes->setPlainText(field_bytes_.toHex());
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
void ShowPacketBytesDialog::captureFileClosing()
|
|
|
|
{
|
|
|
|
WiresharkDialog::captureFileClosing();
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Editor modelines
|
|
|
|
*
|
|
|
|
* Local Variables:
|
|
|
|
* c-basic-offset: 4
|
|
|
|
* tab-width: 8
|
|
|
|
* indent-tabs-mode: nil
|
|
|
|
* End:
|
|
|
|
*
|
|
|
|
* ex: set shiftwidth=4 tabstop=8 expandtab:
|
|
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
|
|
*/
|