roy.marples.name Git - dhcpcd-ui/blob - src/dhcpcd-qt/dhcpcd-qt.cpp

   1 /*
   2  * dhcpcd-qt
   3  * Copyright 2014 Roy Marples <roy@marples.name>
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  */
  26
  27 #include <QCursor>
  28 #include <QDebug>
  29 #include <QList>
  30 #include <QSocketNotifier>
  31 #include <QtGui>
  32
  33 #include <cerrno>
  34
  35 #include "config.h"
  36 #include "dhcpcd-qt.h"
  37 #include "dhcpcd-about.h"
  38 #include "dhcpcd-preferences.h"
  39 #include "dhcpcd-wi.h"
  40 #include "dhcpcd-ssidmenu.h"
  41
  42 DhcpcdQt::DhcpcdQt()
  43 {
  44
  45         createActions();
  46         createTrayIcon();
  47
  48         onLine = carrier = false;
  49         lastStatus = NULL;
  50         aniTimer = new QTimer(this);
  51         connect(aniTimer, SIGNAL(timeout()), this, SLOT(animate()));
  52         notifier = NULL;
  53         retryOpenTimer = NULL;
  54
  55         about = NULL;
  56         preferences = NULL;
  57
  58         wis = new QList<DhcpcdWi *>();
  59         ssidMenu = NULL;
  60
  61         qDebug("%s", "Connecting ...");
  62         con = dhcpcd_new();
  63         if (con == NULL) {
  64                 qCritical("libdhcpcd: %s", strerror(errno));
  65                 exit(EXIT_FAILURE);
  66                 return;
  67         }
  68         dhcpcd_set_status_callback(con, dhcpcd_status_cb, this);
  69         dhcpcd_set_if_callback(con, dhcpcd_if_cb, this);
  70         dhcpcd_wpa_set_scan_callback(con, dhcpcd_wpa_scan_cb, this);
  71         tryOpen();
  72
  73 }
  74
  75 DhcpcdQt::~DhcpcdQt()
  76 {
  77
  78         qDeleteAll(*wis);
  79         delete wis;
  80
  81         free(lastStatus);
  82
  83         if (con != NULL) {
  84                 dhcpcd_close(con);
  85                 dhcpcd_free(con);
  86         }
  87 }
  88
  89 void DhcpcdQt::animate()
  90 {
  91         const char *icon;
  92
  93         if (onLine) {
  94                 if (aniCounter++ > 6) {
  95                         aniTimer->stop();
  96                         aniCounter = 0;
  97                         return;
  98                 }
  99
 100                 if (aniCounter % 2 == 0)
 101                         icon = "network-idle";
 102                 else
 103                         icon = "network-transmit-receive";
 104         } else {
 105                 switch(aniCounter++) {
 106                 case 0:
 107                         icon = "network-transmit";
 108                         break;
 109                 case 1:
 110                         icon = "network-receive";
 111                         break;
 112                 default:
 113                         icon = "network-idle";
 114                         aniCounter = 0;
 115                 }
 116         }
 117
 118         setIcon("status", icon);
 119 }
 120
 121 void DhcpcdQt::updateOnline(bool showIf)
 122 {
 123         bool isOn, isCarrier;
 124         char *msg;
 125         DHCPCD_IF *ifs, *i;
 126         QString msgs;
 127
 128         isOn = isCarrier = false;
 129         ifs = dhcpcd_interfaces(con);
 130         for (i = ifs; i; i = i->next) {
 131                 if (strcmp(i->type, "link") == 0) {
 132                         if (i->up)
 133                                 isCarrier = true;
 134                 } else {
 135                         if (i->up)
 136                                 isOn = true;
 137                 }
 138                 msg = dhcpcd_if_message(i, NULL);
 139                 if (msg) {
 140                         if (showIf)
 141                                 qDebug() << msg;
 142                         if (msgs.isEmpty())
 143                                 msgs = QString::fromAscii(msg);
 144                         else
 145                                 msgs += '\n' + QString::fromAscii(msg);
 146                         free(msg);
 147                 } else if (showIf)
 148                         qDebug() << i->ifname << i->reason;
 149         }
 150
 151         if (onLine != isOn || carrier != isCarrier) {
 152                 onLine = isOn;
 153                 aniTimer->stop();
 154                 aniCounter = 0;
 155                 if (isOn) {
 156                         animate();
 157                         aniTimer->start(300);
 158                 } else if (isCarrier) {
 159                         animate();
 160                         aniTimer->start(500);
 161                 } else
 162                         setIcon("status", "network-offline");
 163         }
 164
 165         trayIcon->setToolTip(msgs);
 166 }
 167
 168 void DhcpcdQt::statusCallback(const char *status)
 169 {
 170
 171         qDebug("Status changed to %s", status);
 172         if (strcmp(status, "down") == 0) {
 173                 aniTimer->stop();
 174                 aniCounter = 0;
 175                 setIcon("status", "network-offline");
 176                 if (notifier) {
 177                         delete notifier;
 178                         notifier = NULL;
 179                 }
 180                 trayIcon->setToolTip(tr("Not connected to dhcpcd"));
 181         } else {
 182                 bool refresh;
 183
 184                 if (lastStatus == NULL || strcmp(lastStatus, "down") == 0) {
 185                         qDebug("Connected to dhcpcd-%s", dhcpcd_version(con));
 186                         refresh = true;
 187                 } else
 188                         refresh = strcmp(lastStatus, "opened") ? false : true;
 189                 printf ("refresh %d\n", refresh);
 190                 updateOnline(refresh);
 191                 printf ("updated\n");
 192         }
 193
 194         free(lastStatus);
 195         lastStatus = strdup(status);
 196
 197         if (strcmp(status, "down") == 0) {
 198                 if (retryOpenTimer == NULL) {
 199                         retryOpenTimer = new QTimer(this);
 200                         connect(retryOpenTimer, SIGNAL(timeout()),
 201                             this, SLOT(tryOpen()));
 202                         retryOpenTimer->start(DHCPCD_RETRYOPEN);
 203                 }
 204         }
 205 }
 206
 207 void DhcpcdQt::dhcpcd_status_cb(_unused DHCPCD_CONNECTION *con,
 208     const char *status, void *d)
 209 {
 210         DhcpcdQt *dhcpcdQt = (DhcpcdQt *)d;
 211
 212         dhcpcdQt->statusCallback(status);
 213 }
 214
 215 void DhcpcdQt::ifCallback(DHCPCD_IF *i)
 216 {
 217         char *msg;
 218         bool new_msg;
 219
 220         updateOnline(false);
 221
 222         if (strcmp(i->reason, "RENEW") == 0 ||
 223             strcmp(i->reason, "STOP") == 0 ||
 224             strcmp(i->reason, "STOPPED") == 0)
 225                 return;
 226
 227         msg = dhcpcd_if_message(i, &new_msg);
 228         if (msg) {
 229                 qDebug("%s", msg);
 230                 if (new_msg) {
 231                         QSystemTrayIcon::MessageIcon icon =
 232                             i->up ? QSystemTrayIcon::Information :
 233                             QSystemTrayIcon::Warning;
 234                         trayIcon->showMessage(tr("Network Event"), msg, icon);
 235                 }
 236                 free(msg);
 237         }
 238 }
 239
 240 void DhcpcdQt::dhcpcd_if_cb(DHCPCD_IF *i, void *d)
 241 {
 242         DhcpcdQt *dhcpcdQt = (DhcpcdQt *)d;
 243
 244         dhcpcdQt->ifCallback(i);
 245 }
 246
 247 DhcpcdWi *DhcpcdQt::findWi(DHCPCD_WPA *wpa)
 248 {
 249
 250         for (auto &wi : *wis) {
 251                 if (wi->getWpa() == wpa)
 252                         return wi;
 253         }
 254         return NULL;
 255 }
 256
 257 void DhcpcdQt::scanCallback(DHCPCD_WPA *wpa)
 258 {
 259         DHCPCD_WI_SCAN *scans, *s1, *s2;
 260         int fd = dhcpcd_wpa_get_fd(wpa);
 261         DhcpcdWi *wi;
 262
 263         wi = findWi(wpa);
 264         if (fd == -1) {
 265                 qCritical("No fd for WPA");
 266                 if (wi) {
 267                         wis->removeOne(wi);
 268                         delete wi;
 269                 }
 270                 return;
 271         }
 272
 273         DHCPCD_IF *i = dhcpcd_wpa_if(wpa);
 274         if (i == NULL) {
 275                 qCritical("No interface for WPA");
 276                 if (wi) {
 277                         wis->removeOne(wi);
 278                         delete wi;
 279                 }
 280                 return;
 281         }
 282
 283         qDebug("%s: Received scan results", i->ifname);
 284         scans = dhcpcd_wi_scans(i);
 285         if (wi == NULL) {
 286                 wi = new DhcpcdWi(this, wpa);
 287                 wis->append(wi);
 288         } else {
 289                 QString title = tr("New Access Point");
 290                 QString txt;
 291                 for (s1 = scans; s1; s1 = s1->next) {
 292                         for (s2 = wi->getScans(); s2; s2 = s2->next) {
 293                                 if (strcmp(s1->ssid, s2->ssid) == 0)
 294                                         break;
 295                                 if (s2 == NULL) {
 296                                         if (!txt.isEmpty()) {
 297                                                 title = tr("New Access Points");
 298                                                 txt += '\n';
 299                                         }
 300                                         txt += s1->ssid;
 301                                 }
 302                         }
 303                 }
 304                 if (!txt.isEmpty())
 305                         notify(title, txt);
 306         }
 307         wi->setScans(scans);
 308 }
 309
 310 void DhcpcdQt::dhcpcd_wpa_scan_cb(DHCPCD_WPA *wpa, void *d)
 311 {
 312         DhcpcdQt *dhcpcdQt = (DhcpcdQt *)d;
 313
 314         dhcpcdQt->scanCallback(wpa);
 315 }
 316
 317 void DhcpcdQt::tryOpen() {
 318         int fd = dhcpcd_open(con);
 319         static int last_error;
 320
 321         if (fd == -1) {
 322                 if (errno != last_error) {
 323                         last_error = errno;
 324                         qCritical("dhcpcd_open: %s", strerror(errno));
 325                 }
 326                 if (retryOpenTimer == NULL) {
 327                         retryOpenTimer = new QTimer(this);
 328                         connect(retryOpenTimer, SIGNAL(timeout()),
 329                             this, SLOT(tryOpen()));
 330                         retryOpenTimer->start(DHCPCD_RETRYOPEN);
 331                 }
 332                 return;
 333         }
 334
 335         /* Start listening to WPA events */
 336         dhcpcd_wpa_start(con);
 337
 338         if (retryOpenTimer) {
 339                 delete retryOpenTimer;
 340                 retryOpenTimer = NULL;
 341         }
 342
 343         notifier = new QSocketNotifier(fd, QSocketNotifier::Read);
 344         connect(notifier, SIGNAL(activated(int)), this, SLOT(dispatch()));
 345 }
 346
 347 void DhcpcdQt::dispatch() {
 348
 349         if (dhcpcd_get_fd(con) == -1) {
 350                 qWarning("dhcpcd connection lost");
 351                 return;
 352         }
 353
 354         dhcpcd_dispatch(con);
 355 }
 356
 357 void DhcpcdQt::notify(QString &title, QString &msg,
 358     QSystemTrayIcon::MessageIcon icon)
 359 {
 360
 361         qDebug("%s", qPrintable(msg));
 362         trayIcon->showMessage(title, msg, icon);
 363 }
 364
 365
 366 void DhcpcdQt::closeEvent(QCloseEvent *event)
 367 {
 368
 369         if (trayIcon->isVisible()) {
 370                 hide();
 371                 event->ignore();
 372         }
 373 }
 374
 375 QIcon DhcpcdQt::getIcon(QString category, QString name)
 376 {
 377         QIcon icon;
 378
 379         if (QIcon::hasThemeIcon(name))
 380                 icon = QIcon::fromTheme(name);
 381         else
 382                 icon = QIcon(ICONDIR "/hicolor/scalable/" + category + "/" + name + ".svg");
 383         return icon;
 384 }
 385
 386 void DhcpcdQt::setIcon(QString category, QString name)
 387 {
 388         QIcon icon = getIcon(category, name);
 389
 390         trayIcon->setIcon(icon);
 391 }
 392
 393 QIcon DhcpcdQt::icon()
 394 {
 395
 396         return getIcon("status", "network-transmit-receive");
 397 }
 398
 399 void DhcpcdQt::addSsidMenu(QMenu *&menu, DHCPCD_IF *ifp, DhcpcdWi *&wi)
 400 {
 401         DHCPCD_WI_SCAN *scan;
 402
 403         for (scan = wi->getScans(); scan; scan = scan->next) {
 404                 QWidgetAction *wa = new QWidgetAction(menu);
 405                 DhcpcdSsidMenu *ssidMenu = new DhcpcdSsidMenu(menu, ifp, scan);
 406                 wa->setDefaultWidget(ssidMenu);
 407                 menu->addAction(wa);
 408                 connect(ssidMenu, SIGNAL(selected(DHCPCD_IF *, DHCPCD_WI_SCAN *)),
 409                     this, SLOT(connectSsid(DHCPCD_IF *, DHCPCD_WI_SCAN *)));
 410         }
 411 }
 412
 413 void DhcpcdQt::connectSsid(DHCPCD_IF *, DHCPCD_WI_SCAN *)
 414 {
 415
 416         QMessageBox::information(this, "Not implemented",
 417             "SSID selection is not yet implemented");
 418 }
 419
 420 void DhcpcdQt::createSsidMenu()
 421 {
 422         DHCPCD_WPA *wpa;
 423         DHCPCD_IF *ifp;
 424
 425         if (ssidMenu) {
 426                 delete ssidMenu;
 427                 ssidMenu = NULL;
 428         }
 429         if (wis->size() == 0)
 430                 return;
 431
 432         ssidMenu = new QMenu(this);
 433         if (wis->size() == 1) {
 434                 DhcpcdWi *wi = wis->first();
 435                 wpa = wi->getWpa();
 436                 ifp = dhcpcd_wpa_if(wpa);
 437                 addSsidMenu(ssidMenu, ifp, wi);
 438         } else {
 439                 for (auto &wi : *wis) {
 440                         wpa = wi->getWpa();
 441                         ifp = dhcpcd_wpa_if(wpa);
 442                         if (ifp) {
 443                                 QMenu *ifmenu = ssidMenu->addMenu(ifp->ifname);
 444                                 addSsidMenu(ifmenu, ifp, wi);
 445                         }
 446                 }
 447         }
 448         ssidMenu->popup(QCursor::pos());
 449 }
 450
 451 void DhcpcdQt::iconActivated(QSystemTrayIcon::ActivationReason reason)
 452 {
 453
 454         if (reason == QSystemTrayIcon::Trigger)
 455                 createSsidMenu();
 456 }
 457
 458 void DhcpcdQt::dialogClosed(QDialog *dialog)
 459 {
 460
 461         if (dialog == about)
 462                 about = NULL;
 463         else if (dialog == preferences)
 464                 preferences = NULL;
 465 }
 466
 467 void DhcpcdQt::showPreferences()
 468 {
 469
 470         if (preferences == NULL) {
 471                 preferences = new DhcpcdPreferences(this);
 472                 preferences->show();
 473         } else
 474                 preferences->activateWindow();
 475 }
 476
 477 void DhcpcdQt::showAbout()
 478 {
 479
 480         if (about == NULL) {
 481                 about = new DhcpcdAbout(this);
 482                 about->show();
 483         } else
 484                 about->activateWindow();
 485 }
 486
 487 void DhcpcdQt::createActions()
 488 {
 489
 490         preferencesAction = new QAction(tr("&Preferences"), this);
 491         preferencesAction->setIcon(QIcon::fromTheme("preferences-system-network"));
 492         connect(preferencesAction, SIGNAL(triggered()),
 493             this, SLOT(showPreferences()));
 494
 495         aboutAction = new QAction(tr("&About"), this);
 496         aboutAction->setIcon(QIcon::fromTheme("help-about"));
 497         connect(aboutAction, SIGNAL(triggered()), this, SLOT(showAbout()));
 498
 499         quitAction = new QAction(tr("&Quit"), this);
 500         quitAction->setIcon(QIcon::fromTheme("application-exit"));
 501         connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 502
 503 }
 504
 505 void DhcpcdQt::createTrayIcon()
 506 {
 507
 508         trayIconMenu = new QMenu(this);
 509         trayIconMenu->addAction(preferencesAction);
 510         trayIconMenu->addSeparator();
 511         trayIconMenu->addAction(aboutAction);
 512         trayIconMenu->addAction(quitAction);
 513
 514         trayIcon = new QSystemTrayIcon(this);
 515         setIcon("status", "network-offline");
 516         trayIcon->setContextMenu(trayIconMenu);
 517
 518         connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 519             this, SLOT(iconActivated(QSystemTrayIcon::ActivationReason)));
 520
 521         trayIcon->show();
 522 }