424 lines
15 KiB
C++
424 lines
15 KiB
C++
/* capture_filter_edit.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 "config.h"
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#include <glib.h>
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#include <epan/proto.h>
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#include "capture_opts.h"
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#include <ui/capture_globals.h>
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#include <ui/filters.h>
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#include <wsutil/utf8_entities.h>
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#include "capture_filter_edit.h"
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#include "capture_filter_syntax_worker.h"
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#include "stock_icon_tool_button.h"
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#include "wireshark_application.h"
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#include <QComboBox>
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#include <QCompleter>
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#include <QPainter>
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#include <QStringListModel>
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#include <QStyleOptionFrame>
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#include "qt_ui_utils.h"
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// To do:
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// - This duplicates some DisplayFilterEdit code.
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// - We need simplified (button- and dropdown-free) versions for use in dialogs and field-only checking.
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#if defined(Q_OS_MAC) && 0
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// http://developer.apple.com/library/mac/#documentation/Cocoa/Reference/ApplicationKit/Classes/NSImage_Class/Reference/Reference.html
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// http://www.virtualbox.org/svn/vbox/trunk/src/VBox/Frontends/VirtualBox/src/platform/darwin/UICocoaSpecialControls.mm
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class UIMiniCancelButton: public QAbstractButton
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{
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Q_OBJECT;
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public:
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UIMiniCancelButton(QWidget *pParent = 0);
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void setText(const QString &strText) { m_pButton->setText(strText); }
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void setToolTip(const QString &strTip) { m_pButton->setToolTip(strTip); }
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void removeBorder() {}
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protected:
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void paintEvent(QPaintEvent * /* pEvent */) {}
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void resizeEvent(QResizeEvent *pEvent);
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private:
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UICocoaButton *m_pButton;
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};
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UIMiniCancelButton::UIMiniCancelButton(QWidget *pParent /* = 0 */)
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: QAbstractButton(pParent)
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{
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setShortcut(QKeySequence(Qt::Key_Escape));
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m_pButton = new UICocoaButton(UICocoaButton::CancelButton, this);
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connect(m_pButton, SIGNAL(clicked()),
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this, SIGNAL(clicked()));
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setFixedSize(m_pButton->size());
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}
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#endif
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static const QString libpcap_primitive_chars_ = "-0123456789abcdefghijklmnopqrstuvwxyz";
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// grep '^[a-z].*return [A-Z].*;$' scanner.l | awk '{gsub(/\|/, "\n") ; print " << \"" $1 "\""}' | sort
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// Remove "and" and "or".
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static const QStringList libpcap_primitives_ = QStringList()
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<< "aarp" << "action" << "address1" << "address2" << "address3" << "address4"
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<< "ah" << "arp" << "atalk" << "bcc" << "broadcast" << "byte" << "carp"
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<< "clnp" << "connectmsg" << "csnp" << "decnet" << "direction" << "dpc"
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<< "dst" << "es-is" << "esis" << "esp" << "fddi" << "fisu" << "gateway"
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<< "greater" << "hdpc" << "hfisu" << "hlssu" << "hmsu" << "hopc" << "host"
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<< "hsio" << "hsls" << "icmp" << "icmp6" << "igmp" << "igrp" << "iih" << "ilmic"
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<< "inbound" << "ip" << "ip6" << "ipx" << "is-is" << "isis" << "iso" << "l1"
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<< "l2" << "lane" << "lat" << "len" << "less" << "link" << "llc" << "lsp"
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<< "lssu" << "lsu" << "mask" << "metac" << "metaconnect" << "mopdl" << "moprc"
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<< "mpls" << "msu" << "multicast" << "net" << "netbeui" << "oam" << "oamf4"
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<< "oamf4ec" << "oamf4sc" << "on" << "opc" << "outbound" << "pim"
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<< "port" << "portrange" << "pppoed" << "pppoes" << "proto" << "psnp" << "ra"
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<< "radio" << "rarp" << "reason" << "rnr" << "rset" << "sc" << "sca" << "sctp"
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<< "sio" << "sls" << "snp" << "src" << "srnr" << "stp" << "subtype" << "ta"
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<< "tcp" << "type" << "udp" << "vci" << "vlan" << "vpi" << "vrrp"
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;
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CaptureFilterEdit::CaptureFilterEdit(QWidget *parent, bool plain) :
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SyntaxLineEdit(parent),
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plain_(plain),
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field_name_only_(false),
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bookmark_button_(NULL),
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clear_button_(NULL),
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apply_button_(NULL)
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{
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setAccessibleName(tr("Capture filter entry"));
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completion_model_ = new QStringListModel(this);
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setCompleter(new QCompleter(completion_model_, this));
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setCompletionTokenChars(libpcap_primitive_chars_);
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placeholder_text_ = QString(tr("Enter a capture filter %1")).arg(UTF8_HORIZONTAL_ELLIPSIS);
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#if QT_VERSION >= QT_VERSION_CHECK(4, 7, 0)
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setPlaceholderText(placeholder_text_);
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#endif
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// These are fully implemented in DisplayFilterEdit but not here.
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if (!plain_) {
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bookmark_button_ = new StockIconToolButton(this, "x-filter-bookmark");
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bookmark_button_->setCursor(Qt::ArrowCursor);
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bookmark_button_->setPopupMode(QToolButton::InstantPopup);
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bookmark_button_->setToolTip(tr("Manage saved bookmarks."));
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bookmark_button_->setIconSize(QSize(14, 14));
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bookmark_button_->setStyleSheet(
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"QToolButton {"
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" border: none;"
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" background: transparent;" // Disables platform style on Windows.
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" padding: 0 0 0 0;"
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"}"
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"QToolButton::menu-indicator { image: none; }"
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);
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connect(bookmark_button_, SIGNAL(clicked()), this, SLOT(bookmarkClicked()));
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}
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if (!plain_) {
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clear_button_ = new StockIconToolButton(this, "x-filter-clear");
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clear_button_->setCursor(Qt::ArrowCursor);
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clear_button_->setToolTip(QString());
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clear_button_->setIconSize(QSize(14, 14));
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clear_button_->setStyleSheet(
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"QToolButton {"
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" border: none;"
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" background: transparent;" // Disables platform style on Windows.
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" padding: 0 0 0 0;"
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" margin-left: 1px;"
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"}"
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);
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connect(clear_button_, SIGNAL(clicked()), this, SLOT(clear()));
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}
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connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(checkFilter(const QString&)));
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if (!plain_) {
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apply_button_ = new StockIconToolButton(this, "x-filter-apply");
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apply_button_->setCursor(Qt::ArrowCursor);
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apply_button_->setEnabled(false);
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apply_button_->setToolTip(tr("Apply this filter string to the display."));
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apply_button_->setIconSize(QSize(24, 14));
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apply_button_->setStyleSheet(
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"QToolButton {"
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" border: none;"
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" background: transparent;" // Disables platform style on Windows.
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" padding: 0 0 0 0;"
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"}"
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);
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connect(apply_button_, SIGNAL(clicked()), this, SLOT(applyCaptureFilter()));
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connect(this, SIGNAL(returnPressed()), this, SLOT(applyCaptureFilter()));
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}
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int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
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QSize bksz;
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if (bookmark_button_) bksz = bookmark_button_->sizeHint();
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QSize cbsz;
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if (clear_button_) cbsz = clear_button_->sizeHint();
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QSize apsz;
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if (apply_button_) apsz = apply_button_->sizeHint();
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setStyleSheet(QString(
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"CaptureFilterEdit {"
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" padding-left: %1px;"
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" margin-left: %2px;"
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" margin-right: %3px;"
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"}"
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)
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.arg(frameWidth + 1)
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.arg(bksz.width())
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.arg(cbsz.width() + apsz.width() + frameWidth + 1)
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);
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QThread *syntax_thread = new QThread;
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syntax_worker_ = new CaptureFilterSyntaxWorker;
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syntax_worker_->moveToThread(syntax_thread);
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connect(wsApp, SIGNAL(appInitialized()), this, SLOT(initCaptureFilter()));
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connect(syntax_thread, SIGNAL(started()), syntax_worker_, SLOT(start()));
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connect(syntax_thread, SIGNAL(started()), this, SLOT(checkFilter()));
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connect(syntax_worker_, SIGNAL(syntaxResult(QString,bool,QString)),
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this, SLOT(setFilterSyntaxState(QString,bool,QString)));
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connect(syntax_thread, SIGNAL(finished()), syntax_worker_, SLOT(deleteLater()));
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syntax_thread->start();
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checkFilter();
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}
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#if QT_VERSION < QT_VERSION_CHECK(4, 7, 0)
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void CaptureFilterEdit::paintEvent(QPaintEvent *evt) {
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SyntaxLineEdit::paintEvent(evt);
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// http://wiki.forum.nokia.com/index.php/Custom_QLineEdit
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if (text().isEmpty() && ! this->hasFocus()) {
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QPainter p(this);
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QFont f = font();
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f.setItalic(true);
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p.setFont(f);
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QColor color(palette().color(foregroundRole()));
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color.setAlphaF(0.5);
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p.setPen(color);
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QStyleOptionFrame opt;
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initStyleOption(&opt);
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QRect cr = style()->subElementRect(QStyle::SE_LineEditContents, &opt, this);
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cr.setLeft(cr.left() + 2);
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cr.setRight(cr.right() - 2);
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p.drawText(cr, Qt::AlignLeft|Qt::AlignVCenter, placeholder_text_);
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}
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// else check filter syntax and set the background accordingly
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// XXX - Should we add little warning/error icons as well?
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}
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#endif // QT < 4.7
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void CaptureFilterEdit::resizeEvent(QResizeEvent *)
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{
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QSize cbsz;
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if (clear_button_) cbsz = clear_button_->sizeHint();
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QSize apsz;
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if (apply_button_) apsz = apply_button_->sizeHint();
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int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
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if (clear_button_) {
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clear_button_->move(contentsRect().right() - frameWidth - cbsz.width() - apsz.width(),
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contentsRect().top());
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clear_button_->setMinimumHeight(contentsRect().height());
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clear_button_->setMaximumHeight(contentsRect().height());
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}
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if (apply_button_) {
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apply_button_->move(contentsRect().right() - frameWidth - apsz.width(),
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contentsRect().top());
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apply_button_->setMinimumHeight(contentsRect().height());
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apply_button_->setMaximumHeight(contentsRect().height());
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}
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if (bookmark_button_) {
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bookmark_button_->setMinimumHeight(contentsRect().height());
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bookmark_button_->setMaximumHeight(contentsRect().height());
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}
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}
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void CaptureFilterEdit::checkFilter(const QString& text)
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{
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setSyntaxState(Empty);
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popFilterSyntaxStatus();
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bool empty = text.isEmpty();
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if (bookmark_button_) {
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bookmark_button_->setEnabled(false);
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}
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if (apply_button_) {
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apply_button_->setEnabled(false);
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}
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if (clear_button_) {
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clear_button_->setVisible(!empty);
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}
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if (empty) {
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setFilterSyntaxState(text, true, QString());
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} else {
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syntax_worker_->checkFilter(text);
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}
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}
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void CaptureFilterEdit::checkFilter()
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{
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checkFilter(text());
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}
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void CaptureFilterEdit::initCaptureFilter()
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{
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#ifdef HAVE_LIBPCAP
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setText(global_capture_opts.default_options.cfilter);
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#endif // HAVE_LIBPCAP
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}
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void CaptureFilterEdit::setFilterSyntaxState(QString filter, bool valid, QString err_msg)
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{
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if (filter.compare(text()) == 0) { // The user hasn't changed the filter
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if (valid) {
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setSyntaxState(text().isEmpty() ? Empty : Valid);
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} else {
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setSyntaxState(Invalid);
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emit pushFilterSyntaxStatus(err_msg);
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}
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}
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#ifdef HAVE_LIBPCAP
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if (syntaxState() != Invalid) {
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if (bookmark_button_) {
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bookmark_button_->setEnabled(true);
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}
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if (apply_button_) {
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apply_button_->setEnabled(true);
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}
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valid = true;
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g_free(global_capture_opts.default_options.cfilter);
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if (filter.isEmpty()) {
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global_capture_opts.default_options.cfilter = NULL;
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} else {
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global_capture_opts.default_options.cfilter = qstring_strdup(filter);
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}
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if (global_capture_opts.num_selected > 0) {
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interface_t device;
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for (guint i = 0; i < global_capture_opts.all_ifaces->len; i++) {
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device = g_array_index(global_capture_opts.all_ifaces, interface_t, i);
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if (!device.selected) {
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continue;
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}
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// if (device.active_dlt == -1) {
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// simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "The link type of interface %s was not specified.", device.name);
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// continue; /* Programming error: somehow managed to select an "unsupported" entry */
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// }
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g_array_remove_index(global_capture_opts.all_ifaces, i);
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device.cfilter = qstring_strdup(filter);
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g_array_insert_val(global_capture_opts.all_ifaces, i, device);
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// update_filter_string(device.name, filter_text);
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}
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}
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}
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#endif // HAVE_LIBPCAP
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emit captureFilterSyntaxChanged(valid);
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}
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void CaptureFilterEdit::bookmarkClicked()
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{
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emit addBookmark(text());
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}
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void CaptureFilterEdit::buildCompletionList(const QString &primitive_word)
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{
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if (primitive_word.length() < 1) {
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completion_model_->setStringList(QStringList());
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return;
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}
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// Grab matching capture filters from our parent combo and from the
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// saved capture filters file. Skip ones that look like single fields
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// and assume they will be added below.
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QStringList complex_list;
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QComboBox *cf_combo = qobject_cast<QComboBox *>(parent());
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if (cf_combo) {
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for (int i = 0; i < cf_combo->count() ; i++) {
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QString recent_filter = cf_combo->itemText(i);
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if (isComplexFilter(recent_filter)) {
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complex_list << recent_filter;
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}
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}
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}
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for (const GList *cf_item = get_filter_list_first(CFILTER_LIST); cf_item; cf_item = g_list_next(cf_item)) {
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const filter_def *cf_def = (filter_def *) cf_item->data;
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if (!cf_def || !cf_def->strval) continue;
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QString saved_filter = cf_def->strval;
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if (isComplexFilter(saved_filter) && !complex_list.contains(saved_filter)) {
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complex_list << saved_filter;
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}
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}
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// libpcap has a small number of primitives so we just add the whole list
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// sans the current word.
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QStringList primitive_list = libpcap_primitives_;
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primitive_list.removeAll(primitive_word);
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completion_model_->setStringList(complex_list + primitive_list);
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completer()->setCompletionPrefix(primitive_word);
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}
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void CaptureFilterEdit::applyCaptureFilter()
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{
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if (syntaxState() == Invalid) {
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return;
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}
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emit startCapture();
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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