forked from osmocom/wireshark
877 lines
25 KiB
C++
877 lines
25 KiB
C++
/* 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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* SPDX-License-Identifier: GPL-2.0-or-later
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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 "ui/qt/widgets/wireshark_file_dialog.h"
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#include "epan/charsets.h"
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#include "wsutil/utf8_entities.h"
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#include <QAction>
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#include <QImage>
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#include <QJsonDocument>
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#include <QKeyEvent>
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#include <QMenu>
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#include <QPrintDialog>
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#include <QPrinter>
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#include <QTextCodec>
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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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// - Use ByteViewText to ShowAsHexDump and supplementary view for custom protocol
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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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finfo_(cf.capFile()->finfo_selected),
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decode_as_(DecodeAsNone),
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show_as_(ShowAsASCII),
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use_regex_find_(false)
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{
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ui->setupUi(this);
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loadGeometry(parent.width() * 2 / 3, parent.height() * 3 / 4);
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QString field_name = QString("%1 (%2)").arg(finfo_->hfinfo->name, finfo_->hfinfo->abbrev);
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setWindowSubtitle (field_name);
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hint_label_ = tr("Frame %1, %2, %Ln byte(s).", "", finfo_->length)
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.arg(cf.capFile()->current_frame->num)
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.arg(field_name);
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ui->tePacketBytes->installEventFilter(this);
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connect(ui->tePacketBytes, SIGNAL(showSelected(int,int)), this, SLOT(showSelected(int,int)));
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connect(ui->leFind, SIGNAL(useRegexFind(bool)), this, SLOT(useRegexFind(bool)));
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ui->cbDecodeAs->blockSignals(true);
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ui->cbDecodeAs->addItem(tr("None"), DecodeAsNone);
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ui->cbDecodeAs->addItem(tr("Base64"), DecodeAsBASE64);
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ui->cbDecodeAs->addItem(tr("Compressed"), DecodeAsCompressed);
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ui->cbDecodeAs->addItem(tr("Hex Digits"), DecodeAsHexDigits);
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ui->cbDecodeAs->addItem(tr("Quoted-Printable"), DecodeAsQuotedPrintable);
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ui->cbDecodeAs->addItem(tr("ROT13"), DecodeAsROT13);
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ui->cbDecodeAs->blockSignals(false);
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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("ASCII & Control"), ShowAsASCIIandControl);
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ui->cbShowAs->addItem(tr("C Array"), ShowAsCArray);
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ui->cbShowAs->addItem(tr("EBCDIC"), ShowAsEBCDIC);
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ui->cbShowAs->addItem(tr("Hex Dump"), ShowAsHexDump);
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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("Json"), ShowAsJson);
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ui->cbShowAs->addItem(tr("Raw"), ShowAsRAW);
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ui->cbShowAs->addItem(tr("Rust Array"), ShowAsRustArray);
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// UTF-8 is guaranteed to exist as a QTextCodec
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ui->cbShowAs->addItem(tr("UTF-8"), ShowAsCodec);
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ui->cbShowAs->addItem(tr("YAML"), ShowAsYAML);
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ui->cbShowAs->setCurrentIndex(show_as_);
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ui->cbShowAs->blockSignals(false);
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ui->sbStart->setMinimum(0);
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ui->sbEnd->setMaximum(finfo_->length);
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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…"), 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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setStartAndEnd(0, finfo_->length);
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updateFieldBytes(true);
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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::addCodecs(const QMap<QString, QTextCodec *> &codecMap)
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{
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ui->cbShowAs->blockSignals(true);
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// Make the combobox respect max visible items?
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//ui->cbShowAs->setStyleSheet("QComboBox { combobox-popup: 0;}");
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ui->cbShowAs->insertSeparator(ui->cbShowAs->count());
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#if QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)
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for (const auto &codec : qAsConst(codecMap)) {
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#else
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foreach (const QTextCodec *codec, codecMap) {
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#endif
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// This is already placed in the menu and handled separately
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if (codec->name() != "US-ASCII" && codec->name() != "UTF-8")
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ui->cbShowAs->addItem(tr(codec->name()), ShowAsCodec);
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}
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ui->cbShowAs->blockSignals(false);
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}
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void ShowPacketBytesDialog::showSelected(int start, int end)
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{
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if (end == -1) {
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// end set to -1 means show all packet bytes
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setStartAndEnd(0, finfo_->length);
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} else {
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if (show_as_ == ShowAsRAW) {
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start /= 2;
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end = (end + 1) / 2;
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}
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setStartAndEnd(start_ + start, start_ + end);
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}
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updateFieldBytes();
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}
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void ShowPacketBytesDialog::setStartAndEnd(int start, int end)
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{
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start_ = start;
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end_ = end;
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ui->sbStart->blockSignals(true);
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ui->sbStart->setMaximum(end_);
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ui->sbStart->setValue(start_);
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ui->sbStart->blockSignals(false);
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ui->sbEnd->blockSignals(true);
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ui->sbEnd->setMinimum(start_);
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ui->sbEnd->setValue(end_);
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ui->sbEnd->blockSignals(false);
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updateHintLabel();
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}
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bool ShowPacketBytesDialog::enableShowSelected()
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{
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// "Show Selected" only works when showing all bytes:
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// - DecodeAs must not alter the number of bytes in the buffer
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// - ShowAs must show all bytes in the buffer
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return (((decode_as_ == DecodeAsNone) ||
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(decode_as_ == DecodeAsROT13)) &&
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((show_as_ == ShowAsASCII) ||
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(show_as_ == ShowAsASCIIandControl) ||
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(show_as_ == ShowAsEBCDIC) ||
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(show_as_ == ShowAsRAW)));
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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::updateHintLabel()
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{
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QString hint = hint_label_;
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if (start_ > 0 || end_ < finfo_->length) {
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hint.append(" <span style=\"color: red\">" +
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tr("Displaying %Ln byte(s).", "", end_ - start_) +
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"</span>");
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}
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ui->hintLabel->setText("<small><i>" + hint + "</i></small>");
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}
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void ShowPacketBytesDialog::on_sbStart_valueChanged(int value)
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{
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start_ = value;
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ui->sbEnd->setMinimum(value);
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updateHintLabel();
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updateFieldBytes();
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}
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void ShowPacketBytesDialog::on_sbEnd_valueChanged(int value)
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{
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end_ = value;
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ui->sbStart->setMaximum(value);
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updateHintLabel();
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updateFieldBytes();
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}
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void ShowPacketBytesDialog::on_cbDecodeAs_currentIndexChanged(int idx)
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{
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if (idx < 0) return;
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decode_as_ = static_cast<DecodeAsType>(ui->cbDecodeAs->itemData(idx).toInt());
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ui->tePacketBytes->setShowSelectedEnabled(enableShowSelected());
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updateFieldBytes();
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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->tePacketBytes->setShowSelectedEnabled(enableShowSelected());
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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::useRegexFind(bool use_regex)
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{
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use_regex_find_ = use_regex;
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if (use_regex_find_)
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ui->lFind->setText(tr("Regex Find:"));
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else
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ui->lFind->setText(tr("Find:"));
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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;
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if (use_regex_find_) {
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 13, 0))
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QRegularExpression regex(ui->leFind->text(), QRegularExpression::UseUnicodePropertiesOption);
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#else
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QRegExp regex(ui->leFind->text());
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#endif
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found = ui->tePacketBytes->find(regex);
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} else {
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found = ui->tePacketBytes->find(ui->leFind->text());
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}
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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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{
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QByteArray ba(field_bytes_);
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sanitizeBuffer(ba, true);
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wsApp->clipboard()->setText(ba);
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break;
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}
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case ShowAsASCIIandControl:
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case ShowAsCArray:
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case ShowAsRustArray:
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case ShowAsEBCDIC:
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case ShowAsHexDump:
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case ShowAsJson:
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case ShowAsRAW:
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case ShowAsYAML:
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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 ShowAsCodec:
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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 = WiresharkFileDialog::getSaveFileName(this, wsApp->windowTitleString(tr("Save Selected Packet Bytes As…")));
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if (file_name.isEmpty())
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return;
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QFile::OpenMode open_mode = QFile::WriteOnly;
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switch (show_as_) {
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case ShowAsASCII:
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case ShowAsASCIIandControl:
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case ShowAsCArray:
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case ShowAsRustArray:
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// We always save as UTF-8, so set text mode as we would for UTF-8
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case ShowAsCodec:
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case ShowAsHexDump:
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case ShowAsJson:
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case ShowAsYAML:
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case ShowAsHTML:
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open_mode |= QFile::Text;
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default:
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break;
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}
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QFile file(file_name);
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file.open(open_mode);
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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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sanitizeBuffer(ba, true);
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file.write(ba);
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break;
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}
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case ShowAsASCIIandControl:
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case ShowAsCArray:
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case ShowAsRustArray:
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case ShowAsEBCDIC:
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case ShowAsHexDump:
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case ShowAsJson:
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case ShowAsYAML:
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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 ShowAsCodec:
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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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void ShowPacketBytesDialog::sanitizeBuffer(QByteArray &ba, bool keep_CR)
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{
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for (int i = 0; i < ba.length(); i++) {
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if (ba[i] == '\n' || (keep_CR && ba[i] == '\r'))
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// Keep LF and optionally CR
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continue;
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if (ba[i] == '\0' || g_ascii_isspace(ba[i])) {
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ba[i] = ' ';
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} else if (!g_ascii_isprint(ba[i])) {
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ba.replace(i, 1, UTF8_MIDDLE_DOT);
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i += sizeof(UTF8_MIDDLE_DOT) - 2;
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}
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}
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}
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void ShowPacketBytesDialog::symbolizeBuffer(QByteArray &ba)
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{
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for (int i = 0; i < ba.length(); i++) {
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if ((ba[i] < '\0' || ba[i] >= ' ') && ba[i] != (char)0x7f && !g_ascii_isprint(ba[i])) {
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ba.replace(i, 1, UTF8_MIDDLE_DOT);
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i += sizeof(UTF8_MIDDLE_DOT) - 2;
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}
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}
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QByteArray symbol(UTF8_SYMBOL_FOR_NULL);
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for (char i = 0; i < ' '; i++) {
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ba.replace(i, symbol);
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symbol[2] = symbol[2] + 1;
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}
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symbol[2] = symbol[2] + 1; // Skip SP
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ba.replace((char)0x7f, symbol); // DEL
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}
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QByteArray ShowPacketBytesDialog::decodeQuotedPrintable(const guint8 *bytes, int length)
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{
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QByteArray ba;
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for (int i = 0; i < length; i++) {
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if (bytes[i] == '=' && i + 1 < length) {
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if (bytes[i+1] == '\n') {
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i++; // Soft line break LF
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} else if (bytes[i+1] == '\r' && i + 2 < length && bytes[i+2] == '\n') {
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i += 2; // Soft line break CRLF
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} else if (g_ascii_isxdigit(bytes[i+1]) && i + 2 < length && g_ascii_isxdigit(bytes[i+2])) {
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ba.append(QByteArray::fromHex(QByteArray((const char *)&bytes[i+1], 2)));
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i += 2; // Valid Quoted-Printable sequence
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} else {
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// Illegal Quoted-Printable, just add byte
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ba.append(bytes[i]);
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}
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} else {
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ba.append(bytes[i]);
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}
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}
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return ba;
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}
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void ShowPacketBytesDialog::rot13(QByteArray &ba)
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{
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for (int i = 0; i < ba.length(); i++) {
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gchar upper = g_ascii_toupper(ba[i]);
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|
if (upper >= 'A' && upper <= 'M') ba[i] = ba[i] + 13;
|
|
else if (upper >= 'N' && upper <= 'Z') ba[i] = ba[i] - 13;
|
|
}
|
|
}
|
|
|
|
void ShowPacketBytesDialog::updateFieldBytes(bool initialization)
|
|
{
|
|
int start = finfo_->start + start_;
|
|
int length = end_ - start_;
|
|
const guint8 *bytes;
|
|
gsize new_length = 0;
|
|
|
|
if (!finfo_->ds_tvb)
|
|
return;
|
|
|
|
switch (decode_as_) {
|
|
|
|
case DecodeAsNone:
|
|
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
|
|
field_bytes_ = QByteArray((const char *)bytes, length);
|
|
break;
|
|
|
|
case DecodeAsBASE64:
|
|
{
|
|
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
|
|
field_bytes_ = QByteArray((const char *)bytes, length);
|
|
if (field_bytes_.size() > 1) {
|
|
g_base64_decode_inplace(field_bytes_.data(), &new_length);
|
|
}
|
|
field_bytes_.resize((int)new_length);
|
|
break;
|
|
}
|
|
|
|
case DecodeAsCompressed:
|
|
{
|
|
tvbuff *uncompr_tvb = tvb_uncompress(finfo_->ds_tvb, start, length);
|
|
if (uncompr_tvb) {
|
|
bytes = tvb_get_ptr(uncompr_tvb, 0, -1);
|
|
field_bytes_ = QByteArray((const char *)bytes, tvb_reported_length(uncompr_tvb));
|
|
tvb_free(uncompr_tvb);
|
|
} else {
|
|
field_bytes_.clear();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case DecodeAsHexDigits:
|
|
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
|
|
field_bytes_ = QByteArray::fromHex(QByteArray::fromRawData((const char *)bytes, length));
|
|
break;
|
|
|
|
case DecodeAsQuotedPrintable:
|
|
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
|
|
field_bytes_ = decodeQuotedPrintable(bytes, length);
|
|
break;
|
|
|
|
case DecodeAsROT13:
|
|
bytes = tvb_get_ptr(finfo_->ds_tvb, start, -1);
|
|
field_bytes_ = QByteArray((const char *)bytes, length);
|
|
rot13(field_bytes_);
|
|
break;
|
|
}
|
|
|
|
// Try loading as image at startup
|
|
if (initialization && image_.loadFromData(field_bytes_)) {
|
|
show_as_ = ShowAsImage;
|
|
ui->cbShowAs->blockSignals(true);
|
|
ui->cbShowAs->setCurrentIndex(ShowAsImage);
|
|
ui->cbShowAs->blockSignals(false);
|
|
}
|
|
|
|
updatePacketBytes();
|
|
}
|
|
|
|
void ShowPacketBytesDialog::updatePacketBytes(void)
|
|
{
|
|
static const gchar hexchars[16] = {'0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'};
|
|
|
|
ui->tePacketBytes->clear();
|
|
ui->tePacketBytes->setCurrentFont(wsApp->monospaceFont());
|
|
|
|
switch (show_as_) {
|
|
|
|
case ShowAsASCII:
|
|
{
|
|
QByteArray ba(field_bytes_);
|
|
sanitizeBuffer(ba, false);
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
|
|
ui->tePacketBytes->setPlainText(ba);
|
|
break;
|
|
}
|
|
|
|
case ShowAsASCIIandControl:
|
|
{
|
|
QByteArray ba(field_bytes_);
|
|
symbolizeBuffer(ba);
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
|
|
ui->tePacketBytes->setPlainText(ba);
|
|
break;
|
|
}
|
|
|
|
case ShowAsCArray:
|
|
{
|
|
int pos = 0, len = field_bytes_.length();
|
|
QString text("char packet_bytes[] = {\n");
|
|
|
|
while (pos < len) {
|
|
gchar hexbuf[256];
|
|
char *cur = hexbuf;
|
|
int i;
|
|
|
|
*cur++ = ' ';
|
|
for (i = 0; i < 8 && pos + i < len; i++) {
|
|
// Prepend entries with " 0x"
|
|
*cur++ = ' ';
|
|
*cur++ = '0';
|
|
*cur++ = 'x';
|
|
*cur++ = hexchars[(field_bytes_[pos + i] & 0xf0) >> 4];
|
|
*cur++ = hexchars[field_bytes_[pos + i] & 0x0f];
|
|
|
|
// Delimit array entries with a comma
|
|
if (pos + i + 1 < len)
|
|
*cur++ = ',';
|
|
}
|
|
|
|
pos += i;
|
|
*cur++ = '\n';
|
|
*cur = 0;
|
|
|
|
text.append(hexbuf);
|
|
}
|
|
|
|
text.append("};\n");
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
|
|
ui->tePacketBytes->setPlainText(text);
|
|
break;
|
|
}
|
|
|
|
case ShowAsRustArray:
|
|
{
|
|
int pos = 0, len = field_bytes_.length();
|
|
QString text("let packet_bytes: [u8; _] = [\n");
|
|
|
|
while (pos < len) {
|
|
gchar hexbuf[256];
|
|
char *cur = hexbuf;
|
|
int i;
|
|
|
|
*cur++ = ' ';
|
|
for (i = 0; i < 8 && pos + i < len; i++) {
|
|
// Prepend entries with " 0x"
|
|
*cur++ = ' ';
|
|
*cur++ = '0';
|
|
*cur++ = 'x';
|
|
*cur++ = hexchars[(field_bytes_[pos + i] & 0xf0) >> 4];
|
|
*cur++ = hexchars[field_bytes_[pos + i] & 0x0f];
|
|
|
|
// Delimit array entries with a comma
|
|
if (pos + i + 1 < len)
|
|
*cur++ = ',';
|
|
}
|
|
|
|
pos += i;
|
|
*cur++ = '\n';
|
|
*cur = 0;
|
|
|
|
text.append(hexbuf);
|
|
}
|
|
|
|
text.append("];\n");
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
|
|
ui->tePacketBytes->setPlainText(text);
|
|
break;
|
|
}
|
|
|
|
case ShowAsCodec:
|
|
{
|
|
// The QTextCodecs docs say that there's a flag to cause invalid
|
|
// characters to be replaced with null. It's unclear what happens
|
|
// in the default case; it might depend on the codec though it
|
|
// seems that in practice replacement characters are used.
|
|
QTextCodec *codec = QTextCodec::codecForName(ui->cbShowAs->currentText().toUtf8());
|
|
QByteArray ba(field_bytes_);
|
|
QString decoded = codec->toUnicode(ba);
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
|
|
ui->tePacketBytes->setPlainText(decoded);
|
|
break;
|
|
}
|
|
|
|
case ShowAsEBCDIC:
|
|
{
|
|
QByteArray ba(field_bytes_);
|
|
EBCDIC_to_ASCII((guint8*)ba.data(), ba.length());
|
|
sanitizeBuffer(ba, false);
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
|
|
ui->tePacketBytes->setPlainText(ba);
|
|
break;
|
|
}
|
|
|
|
case ShowAsHexDump:
|
|
{
|
|
int pos = 0, len = field_bytes_.length();
|
|
// Use 16-bit offset if there are <= 65536 bytes, 32-bit offset if there are more
|
|
unsigned int offset_chars = (len - 1 <= 0xFFFF) ? 4 : 8;
|
|
QString text;
|
|
text.reserve((len / 16) * 80);
|
|
|
|
while (pos < len) {
|
|
char hexbuf[256];
|
|
char *cur = hexbuf;
|
|
int i;
|
|
|
|
// Dump offset
|
|
cur += snprintf(cur, 20, "%0*X ", offset_chars, pos);
|
|
|
|
// Dump bytes as hex
|
|
for (i = 0; i < 16 && pos + i < len; i++) {
|
|
*cur++ = hexchars[(field_bytes_[pos + i] & 0xf0) >> 4];
|
|
*cur++ = hexchars[field_bytes_[pos + i] & 0x0f];
|
|
*cur++ = ' ';
|
|
if (i == 7)
|
|
*cur++ = ' ';
|
|
}
|
|
|
|
while (cur < hexbuf + offset_chars + 53)
|
|
*cur++ = ' '; // Fill it up with space to ascii column
|
|
|
|
// Dump bytes as text
|
|
for (i = 0; i < 16 && pos + i < len; i++) {
|
|
if (g_ascii_isprint(field_bytes_[pos + i])) {
|
|
*cur++ = field_bytes_[pos + i];
|
|
} else {
|
|
memcpy(cur, UTF8_MIDDLE_DOT, sizeof(UTF8_MIDDLE_DOT) - 1);
|
|
cur += sizeof(UTF8_MIDDLE_DOT) - 1;
|
|
}
|
|
if (i == 7)
|
|
*cur++ = ' ';
|
|
}
|
|
|
|
pos += i;
|
|
*cur++ = '\n';
|
|
*cur = 0;
|
|
|
|
text.append(hexbuf);
|
|
}
|
|
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
|
|
ui->tePacketBytes->setPlainText(text);
|
|
break;
|
|
}
|
|
|
|
case ShowAsHTML:
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
|
|
ui->tePacketBytes->setHtml(field_bytes_);
|
|
break;
|
|
|
|
case ShowAsImage:
|
|
{
|
|
ui->lFind->setEnabled(false);
|
|
ui->leFind->setEnabled(false);
|
|
ui->bFind->setEnabled(false);
|
|
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
|
|
if (image_.loadFromData(field_bytes_)) {
|
|
ui->tePacketBytes->textCursor().insertImage(image_);
|
|
}
|
|
|
|
print_button_->setEnabled(!image_.isNull());
|
|
copy_button_->setEnabled(!image_.isNull());
|
|
save_as_button_->setEnabled(!image_.isNull());
|
|
break;
|
|
}
|
|
|
|
case ShowAsJson:
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
|
|
ui->tePacketBytes->setPlainText(QJsonDocument::fromJson(field_bytes_).toJson());
|
|
break;
|
|
|
|
case ShowAsYAML:
|
|
{
|
|
const int base64_raw_len = 57; // Encodes to 76 bytes, common in RFCs
|
|
int pos = 0, len = field_bytes_.length();
|
|
QString text("# Packet Bytes: !!binary |\n");
|
|
|
|
while (pos < len) {
|
|
QByteArray base64_data = field_bytes_.mid(pos, base64_raw_len);
|
|
pos += base64_data.length();
|
|
text.append(" " + base64_data.toBase64() + "\n");
|
|
}
|
|
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::NoWrap);
|
|
ui->tePacketBytes->setPlainText(text);
|
|
break;
|
|
}
|
|
|
|
case ShowAsRAW:
|
|
ui->tePacketBytes->setLineWrapMode(QTextEdit::WidgetWidth);
|
|
ui->tePacketBytes->setPlainText(field_bytes_.toHex());
|
|
break;
|
|
}
|
|
}
|
|
|
|
void ShowPacketBytesDialog::captureFileClosing()
|
|
{
|
|
finfo_ = NULL; // This will invalidate the source backend
|
|
|
|
WiresharkDialog::captureFileClosing();
|
|
}
|
|
|
|
void ShowPacketBytesDialog::captureFileClosed()
|
|
{
|
|
// We have lost the source backend and must disable all functions
|
|
// for manipulating decoding and displayed range.
|
|
|
|
ui->tePacketBytes->setMenusEnabled(false);
|
|
ui->lDecodeAs->setEnabled(false);
|
|
ui->cbDecodeAs->setEnabled(false);
|
|
ui->lStart->setEnabled(false);
|
|
ui->sbStart->setEnabled(false);
|
|
ui->lEnd->setEnabled(false);
|
|
ui->sbEnd->setEnabled(false);
|
|
|
|
WiresharkDialog::captureFileClosed();
|
|
}
|
|
|
|
void ShowPacketBytesTextEdit::contextMenuEvent(QContextMenuEvent *event)
|
|
{
|
|
QMenu *menu = createStandardContextMenu();
|
|
QAction *action;
|
|
|
|
menu->addSeparator();
|
|
|
|
action = menu->addAction(tr("Show Selected"));
|
|
action->setEnabled(menus_enabled_ && show_selected_enabled_ && textCursor().hasSelection());
|
|
connect(action, SIGNAL(triggered()), this, SLOT(showSelected()));
|
|
|
|
action = menu->addAction(tr("Show All"));
|
|
action->setEnabled(menus_enabled_);
|
|
connect(action, SIGNAL(triggered()), this, SLOT(showAll()));
|
|
|
|
menu->exec(event->globalPos());
|
|
delete menu;
|
|
}
|
|
|
|
void ShowPacketBytesTextEdit::showSelected()
|
|
{
|
|
QTextCursor cursor = textCursor();
|
|
int start = cursor.selectionStart();
|
|
int end = cursor.selectionEnd();
|
|
|
|
emit showSelected(start, end);
|
|
}
|
|
|
|
void ShowPacketBytesTextEdit::showAll()
|
|
{
|
|
emit showSelected(0, -1);
|
|
}
|