browser.c

   1 #include <limits.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <string.h>
   8
   9 #include <gtk/gtk.h>
  10 #include <gtk/gtkx.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <gio/gio.h>
  13 #include <webkit2/webkit2.h>
  14
  15
  16 static void client_destroy(GtkWidget *, gpointer);
  17 static gboolean client_destroy_request(WebKitWebView *, gpointer);
  18 static WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean);
  19 static WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  20                                          gpointer);
  21 static void cooperation_setup(void);
  22 static void changed_download_progress(GObject *, GParamSpec *, gpointer);
  23 static void changed_load_progress(GObject *, GParamSpec *, gpointer);
  24 static void changed_title(GObject *, GParamSpec *, gpointer);
  25 static void changed_uri(GObject *, GParamSpec *, gpointer);
  26 static gboolean crashed_web_view(WebKitWebView *, gpointer);
  27 static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  28                               WebKitPolicyDecisionType, gpointer);
  29 static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  30 static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  31 static void downloadmanager_cancel(GtkToolButton *, gpointer data);
  32 static gboolean downloadmanager_delete(GtkWidget *, gpointer);
  33 static void downloadmanager_setup(void);
  34 static gchar *ensure_uri_scheme(const gchar *);
  35 static void external_handler_run(GtkAction *, gpointer);
  36 static void grab_environment_configuration(void);
  37 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  38 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  39 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  40 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  41 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  42 static void keywords_load(void);
  43 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  44 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  45                               WebKitHitTestResult *, gpointer);
  46 static gboolean quit_if_nothing_active(void);
  47 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  48 static void search(gpointer, gint);
  49 static void show_web_view(WebKitWebView *, gpointer);
  50 static Window tabbed_launch(void);
  51 static void trust_user_certs(WebKitWebContext *);
  52
  53
  54 struct Client
  55 {
  56     gchar *external_handler_uri;
  57     gchar *hover_uri;
  58     GtkWidget *location;
  59     GtkWidget *vbox;
  60     GtkWidget *web_view;
  61     GtkWidget *win;
  62 };
  63
  64 struct DownloadManager
  65 {
  66     GtkWidget *scroll;
  67     GtkWidget *toolbar;
  68     GtkWidget *win;
  69 } dm;
  70
  71
  72 static const gchar *accepted_language[2] = { NULL, NULL };
  73 static gint clients = 0, downloads = 0;
  74 static gboolean cooperative_alone = TRUE;
  75 static gboolean cooperative_instances = TRUE;
  76 static int cooperative_pipe_fp = 0;
  77 static gchar *download_dir = "/var/tmp";
  78 static gboolean enable_webgl = FALSE;
  79 static Window embed = 0;
  80 static gchar *fifo_suffix = "main";
  81 static gdouble global_zoom = 1.0;
  82 static gchar *history_file = NULL;
  83 static gchar *home_uri = "about:blank";
  84 static gboolean initial_wc_setup_done = FALSE;
  85 static GHashTable *keywords = NULL;
  86 static gchar *search_text = NULL;
  87 static gboolean tabbed_automagic = TRUE;
  88 static gchar *user_agent = NULL;
  89
  90
  91 void
  92 client_destroy(GtkWidget *widget, gpointer data)
  93 {
  94     struct Client *c = (struct Client *)data;
  95
  96     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
  97                                          changed_load_progress, c);
  98
  99     free(c);
 100     clients--;
 101
 102     quit_if_nothing_active();
 103 }
 104
 105 gboolean
 106 client_destroy_request(WebKitWebView *web_view, gpointer data)
 107 {
 108     struct Client *c = (struct Client *)data;
 109
 110     gtk_widget_destroy(c->win);
 111
 112     return TRUE;
 113 }
 114
 115 WebKitWebView *
 116 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 117 {
 118     struct Client *c;
 119     WebKitWebContext *wc;
 120     gchar *f;
 121
 122     if (uri != NULL && cooperative_instances && !cooperative_alone)
 123     {
 124         f = ensure_uri_scheme(uri);
 125         write(cooperative_pipe_fp, f, strlen(f));
 126         write(cooperative_pipe_fp, "\n", 1);
 127         g_free(f);
 128         return NULL;
 129     }
 130
 131     c = calloc(1, sizeof(struct Client));
 132     if (!c)
 133     {
 134         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 135         exit(EXIT_FAILURE);
 136     }
 137
 138     if (embed != 0)
 139     {
 140         c->win = gtk_plug_new(embed);
 141         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 142         {
 143             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 144             gtk_widget_destroy(c->win);
 145             c->win = NULL;
 146             embed = 0;
 147         }
 148     }
 149
 150     if (c->win == NULL)
 151         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 152
 153     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 154
 155     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 156     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 157
 158     if (related_wv == NULL)
 159         c->web_view = webkit_web_view_new();
 160     else
 161         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 162     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 163
 164     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 165     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 166                      G_CALLBACK(changed_title), c);
 167     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 168                      G_CALLBACK(changed_uri), c);
 169     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 170                      G_CALLBACK(changed_load_progress), c);
 171     g_signal_connect(G_OBJECT(c->web_view), "create",
 172                      G_CALLBACK(client_new_request), NULL);
 173     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 174                      G_CALLBACK(menu_web_view), c);
 175     g_signal_connect(G_OBJECT(c->web_view), "close",
 176                      G_CALLBACK(client_destroy_request), c);
 177     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 178                      G_CALLBACK(decide_policy), NULL);
 179     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 180                      G_CALLBACK(key_web_view), c);
 181     g_signal_connect(G_OBJECT(c->web_view), "button-press-event",
 182                      G_CALLBACK(key_web_view), c);
 183     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 184                      G_CALLBACK(key_web_view), c);
 185     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 186                      G_CALLBACK(hover_web_view), c);
 187     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 188                      G_CALLBACK(crashed_web_view), c);
 189
 190     if (!initial_wc_setup_done)
 191     {
 192         if (accepted_language[0] != NULL)
 193             webkit_web_context_set_preferred_languages(wc, accepted_language);
 194
 195         g_signal_connect(G_OBJECT(wc), "download-started",
 196                          G_CALLBACK(download_handle_start), NULL);
 197
 198         trust_user_certs(wc);
 199
 200         initial_wc_setup_done = TRUE;
 201     }
 202
 203     if (user_agent != NULL)
 204         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 205                      "user-agent", user_agent, NULL);
 206
 207     if (enable_webgl)
 208         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 209
 210     c->location = gtk_entry_new();
 211     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 212                      G_CALLBACK(key_location), c);
 213
 214     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 215     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 216     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 217
 218     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 219
 220     if (show)
 221         show_web_view(NULL, c);
 222     else
 223         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 224                          G_CALLBACK(show_web_view), c);
 225
 226     if (uri != NULL)
 227     {
 228         f = ensure_uri_scheme(uri);
 229         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 230         g_free(f);
 231     }
 232
 233     clients++;
 234
 235     return WEBKIT_WEB_VIEW(c->web_view);
 236 }
 237
 238 WebKitWebView *
 239 client_new_request(WebKitWebView *web_view,
 240                    WebKitNavigationAction *navigation_action, gpointer data)
 241 {
 242     return client_new(NULL, web_view, FALSE);
 243 }
 244
 245 void
 246 cooperation_setup(void)
 247 {
 248     GIOChannel *towatch;
 249     gchar *fifofilename, *fifopath;
 250
 251     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 252     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 253     g_free(fifofilename);
 254
 255     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 256         mkfifo(fifopath, 0600);
 257
 258     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 259     if (!cooperative_pipe_fp)
 260     {
 261         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 262     }
 263     else
 264     {
 265         if (write(cooperative_pipe_fp, "", 0) == -1)
 266         {
 267             /* Could not do an empty write to the FIFO which means there's
 268              * no one listening. */
 269             close(cooperative_pipe_fp);
 270             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 271             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 272         }
 273         else
 274             cooperative_alone = FALSE;
 275     }
 276
 277     g_free(fifopath);
 278 }
 279
 280 void
 281 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 282 {
 283     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 284     WebKitURIResponse *resp;
 285     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 286     gdouble p, size_mb;
 287     const gchar *uri;
 288     gchar *t, *filename, *base;
 289
 290     p = webkit_download_get_estimated_progress(download);
 291     p = p > 1 ? 1 : p;
 292     p = p < 0 ? 0 : p;
 293     p *= 100;
 294     resp = webkit_download_get_response(download);
 295     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 296
 297     uri = webkit_download_get_destination(download);
 298     filename = g_filename_from_uri(uri, NULL, NULL);
 299     if (filename == NULL)
 300     {
 301         /* This really should not happen because WebKit uses that URI to
 302          * write to a file... */
 303         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 304         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 305                             webkit_uri_response_get_uri(resp), p, size_mb);
 306     }
 307     else
 308     {
 309         base = g_path_get_basename(filename);
 310         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 311         g_free(filename);
 312         g_free(base);
 313     }
 314     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 315     g_free(t);
 316 }
 317
 318 void
 319 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 320 {
 321     struct Client *c = (struct Client *)data;
 322     gdouble p;
 323
 324     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 325     if (p == 1) p = 0;
 326     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 327 }
 328
 329 void
 330 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 331 {
 332     const gchar *t, *u;
 333     struct Client *c = (struct Client *)data;
 334
 335     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 336     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 337
 338     u = u == NULL ? __NAME__ : u;
 339     u = u[0] == 0 ? __NAME__ : u;
 340
 341     t = t == NULL ? u : t;
 342     t = t[0] == 0 ? u : t;
 343
 344     gtk_window_set_title(GTK_WINDOW(c->win), t);
 345 }
 346
 347 void
 348 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 349 {
 350     const gchar *t;
 351     struct Client *c = (struct Client *)data;
 352     FILE *fp;
 353
 354     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 355
 356     /* When a web process crashes, we get a "notify::uri" signal, but we
 357      * can no longer read a meaningful URI. It's just an empty string
 358      * now. Not updating the location bar in this scenario is important,
 359      * because we would override the "WEB PROCESS CRASHED" message. */
 360     if (t != NULL && strlen(t) > 0)
 361     {
 362         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 363
 364         if (history_file != NULL)
 365         {
 366             fp = fopen(history_file, "a");
 367             if (fp != NULL)
 368             {
 369                 fprintf(fp, "%s\n", t);
 370                 fclose(fp);
 371             }
 372             else
 373                 perror(__NAME__": Error opening history file");
 374         }
 375     }
 376 }
 377
 378 gboolean
 379 crashed_web_view(WebKitWebView *web_view, gpointer data)
 380 {
 381     gchar *t;
 382     struct Client *c = (struct Client *)data;
 383
 384     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 385                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 386     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 387     g_free(t);
 388
 389     return TRUE;
 390 }
 391
 392 gboolean
 393 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 394               WebKitPolicyDecisionType type, gpointer data)
 395 {
 396     WebKitResponsePolicyDecision *r;
 397
 398     switch (type)
 399     {
 400         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 401             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 402             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 403                 webkit_policy_decision_download(decision);
 404             else
 405                 webkit_policy_decision_use(decision);
 406             break;
 407         default:
 408             /* Use whatever default there is. */
 409             return FALSE;
 410     }
 411     return TRUE;
 412 }
 413
 414 void
 415 download_handle_finished(WebKitDownload *download, gpointer data)
 416 {
 417     downloads--;
 418 }
 419
 420 void
 421 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 422                       gpointer data)
 423 {
 424     g_signal_connect(G_OBJECT(download), "decide-destination",
 425                      G_CALLBACK(download_handle), data);
 426 }
 427
 428 gboolean
 429 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 430 {
 431     gchar *sug_clean, *path, *path2 = NULL, *uri;
 432     GtkToolItem *tb;
 433     int suffix = 1;
 434     size_t i;
 435
 436     sug_clean = g_strdup(suggested_filename);
 437     for (i = 0; i < strlen(sug_clean); i++)
 438         if (sug_clean[i] == G_DIR_SEPARATOR)
 439             sug_clean[i] = '_';
 440
 441     path = g_build_filename(download_dir, sug_clean, NULL);
 442     path2 = g_strdup(path);
 443     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 444     {
 445         g_free(path2);
 446
 447         path2 = g_strdup_printf("%s.%d", path, suffix);
 448         suffix++;
 449     }
 450
 451     if (suffix == 1000)
 452     {
 453         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 454         webkit_download_cancel(download);
 455     }
 456     else
 457     {
 458         uri = g_filename_to_uri(path2, NULL, NULL);
 459         webkit_download_set_destination(download, uri);
 460         g_free(uri);
 461
 462         tb = gtk_tool_button_new(NULL, NULL);
 463         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 464         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 465         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 466         gtk_widget_show_all(dm.win);
 467
 468         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 469                          G_CALLBACK(changed_download_progress), tb);
 470
 471         downloads++;
 472         g_signal_connect(G_OBJECT(download), "finished",
 473                          G_CALLBACK(download_handle_finished), NULL);
 474
 475         g_object_ref(download);
 476         g_signal_connect(G_OBJECT(tb), "clicked",
 477                          G_CALLBACK(downloadmanager_cancel), download);
 478     }
 479
 480     g_free(sug_clean);
 481     g_free(path);
 482     g_free(path2);
 483
 484     /* Propagate -- to whom it may concern. */
 485     return FALSE;
 486 }
 487
 488 void
 489 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 490 {
 491     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 492
 493     webkit_download_cancel(download);
 494     g_object_unref(download);
 495
 496     gtk_widget_destroy(GTK_WIDGET(tb));
 497 }
 498
 499 gboolean
 500 downloadmanager_delete(GtkWidget *obj, gpointer data)
 501 {
 502     if (!quit_if_nothing_active())
 503         gtk_widget_hide(dm.win);
 504
 505     return TRUE;
 506 }
 507
 508 void
 509 downloadmanager_setup(void)
 510 {
 511     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 512     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 513     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 514     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 515     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 516                      G_CALLBACK(downloadmanager_delete), NULL);
 517     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 518                      G_CALLBACK(key_downloadmanager), NULL);
 519
 520     dm.toolbar = gtk_toolbar_new();
 521     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 522                                    GTK_ORIENTATION_VERTICAL);
 523     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 524     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 525
 526     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 527     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 528                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 529     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 530
 531     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 532 }
 533
 534 gchar *
 535 ensure_uri_scheme(const gchar *t)
 536 {
 537     gchar *f, *fabs;
 538
 539     f = g_ascii_strdown(t, -1);
 540     if (!g_str_has_prefix(f, "http:") &&
 541         !g_str_has_prefix(f, "https:") &&
 542         !g_str_has_prefix(f, "file:") &&
 543         !g_str_has_prefix(f, "about:"))
 544     {
 545         g_free(f);
 546         fabs = realpath(t, NULL);
 547         if (fabs != NULL)
 548         {
 549             f = g_strdup_printf("file://%s", fabs);
 550             free(fabs);
 551         }
 552         else
 553             f = g_strdup_printf("http://%s", t);
 554         return f;
 555     }
 556     else
 557         return g_strdup(t);
 558 }
 559
 560 void
 561 external_handler_run(GtkAction *action, gpointer data)
 562 {
 563     struct Client *c = (struct Client *)data;
 564     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 565     GPid pid;
 566     GError *err = NULL;
 567
 568     (void)action;
 569
 570     argv[2] = c->external_handler_uri;
 571     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 572                        &pid, &err))
 573     {
 574         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 575                 err->message);
 576         g_error_free(err);
 577     }
 578     else
 579         g_spawn_close_pid(pid);
 580 }
 581
 582 void
 583 grab_environment_configuration(void)
 584 {
 585     const gchar *e;
 586
 587     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 588     if (e != NULL)
 589         accepted_language[0] = g_strdup(e);
 590
 591     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 592     if (e != NULL)
 593         download_dir = g_strdup(e);
 594
 595     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 596     if (e != NULL)
 597         enable_webgl = TRUE;
 598
 599     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 600     if (e != NULL)
 601         fifo_suffix = g_strdup(e);
 602
 603     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 604     if (e != NULL)
 605         history_file = g_strdup(e);
 606
 607     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 608     if (e != NULL)
 609         home_uri = g_strdup(e);
 610
 611     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 612     if (e != NULL)
 613         user_agent = g_strdup(e);
 614
 615     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 616     if (e != NULL)
 617         global_zoom = atof(e);
 618 }
 619
 620 void
 621 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 622                gpointer data)
 623 {
 624     struct Client *c = (struct Client *)data;
 625
 626     if (!gtk_widget_is_focus(c->location))
 627     {
 628         if (webkit_hit_test_result_context_is_link(ht))
 629         {
 630             gtk_entry_set_text(GTK_ENTRY(c->location),
 631                                webkit_hit_test_result_get_link_uri(ht));
 632
 633             if (c->hover_uri != NULL)
 634                 g_free(c->hover_uri);
 635             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 636         }
 637         else
 638         {
 639             gtk_entry_set_text(GTK_ENTRY(c->location),
 640                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 641
 642             if (c->hover_uri != NULL)
 643                 g_free(c->hover_uri);
 644             c->hover_uri = NULL;
 645         }
 646     }
 647 }
 648
 649 gboolean
 650 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 651 {
 652     struct Client *c = (struct Client *)data;
 653     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 654     gchar *f;
 655
 656     if (event->type == GDK_KEY_PRESS)
 657     {
 658         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 659         {
 660             switch (((GdkEventKey *)event)->keyval)
 661             {
 662                 case GDK_KEY_q:  /* close window (left hand) */
 663                     gtk_widget_destroy(c->win);
 664                     return TRUE;
 665                 case GDK_KEY_w:  /* home (left hand) */
 666                     f = ensure_uri_scheme(home_uri);
 667                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 668                     g_free(f);
 669                     return TRUE;
 670                 case GDK_KEY_e:  /* new tab (left hand) */
 671                     f = ensure_uri_scheme(home_uri);
 672                     client_new(f, NULL, TRUE);
 673                     g_free(f);
 674                     return TRUE;
 675                 case GDK_KEY_r:  /* reload (left hand) */
 676                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 677                                                         c->web_view));
 678                     return TRUE;
 679                 case GDK_KEY_d:  /* download manager (left hand) */
 680                     gtk_widget_show_all(dm.win);
 681                     return TRUE;
 682                 case GDK_KEY_2:  /* search forward (left hand) */
 683                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 684                     search(c, 1);
 685                     return TRUE;
 686                 case GDK_KEY_3:  /* search backward (left hand) */
 687                     search(c, -1);
 688                     return TRUE;
 689                 case GDK_KEY_l:  /* location (BOTH hands) */
 690                     gtk_widget_grab_focus(c->location);
 691                     return TRUE;
 692                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 693                     gtk_widget_grab_focus(c->location);
 694                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 695                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 696                     return TRUE;
 697                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 698                     trust_user_certs(wc);
 699                     return TRUE;
 700                 case GDK_KEY_x:  /* launch external handler (left hand) */
 701                     if (c->external_handler_uri != NULL)
 702                         g_free(c->external_handler_uri);
 703                     c->external_handler_uri = g_strdup(
 704                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 705                     external_handler_run(NULL, c);
 706                     return TRUE;
 707             }
 708         }
 709         /* navigate backward (left hand) */
 710         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 711         {
 712             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 713             return TRUE;
 714         }
 715         /* navigate forward (left hand) */
 716         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 717         {
 718             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 719             return TRUE;
 720         }
 721     }
 722
 723     return FALSE;
 724 }
 725
 726 gboolean
 727 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 728 {
 729     if (event->type == GDK_KEY_PRESS)
 730     {
 731         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 732         {
 733             switch (((GdkEventKey *)event)->keyval)
 734             {
 735                 case GDK_KEY_d:  /* close window (left hand) */
 736                 case GDK_KEY_q:
 737                     downloadmanager_delete(dm.win, NULL);
 738                     return TRUE;
 739             }
 740         }
 741     }
 742
 743     return FALSE;
 744 }
 745
 746 gboolean
 747 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 748 {
 749     struct Client *c = (struct Client *)data;
 750     const gchar *t;
 751     gchar *f;
 752
 753     if (key_common(widget, event, data))
 754         return TRUE;
 755
 756     if (event->type == GDK_KEY_PRESS)
 757     {
 758         switch (((GdkEventKey *)event)->keyval)
 759         {
 760             case GDK_KEY_KP_Enter:
 761             case GDK_KEY_Return:
 762                 gtk_widget_grab_focus(c->web_view);
 763                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 764                 if (t != NULL && t[0] == ':' && t[1] == '/')
 765                 {
 766                     if (search_text != NULL)
 767                         g_free(search_text);
 768                     search_text = g_strdup(t + 2);  /* XXX whacky */
 769                     search(c, 0);
 770                 }
 771                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 772                 {
 773                     f = ensure_uri_scheme(t);
 774                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 775                     g_free(f);
 776                 }
 777                 return TRUE;
 778             case GDK_KEY_Escape:
 779                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 780                 gtk_entry_set_text(GTK_ENTRY(c->location),
 781                                    (t == NULL ? __NAME__ : t));
 782                 return TRUE;
 783         }
 784     }
 785
 786     return FALSE;
 787 }
 788
 789 gboolean
 790 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 791 {
 792     struct Client *c = (struct Client *)data;
 793     gdouble dx, dy;
 794     gfloat z;
 795
 796     if (key_common(widget, event, data))
 797         return TRUE;
 798
 799     if (event->type == GDK_KEY_PRESS)
 800     {
 801         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 802         {
 803             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 804             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 805         }
 806     }
 807     else if (event->type == GDK_BUTTON_PRESS)
 808     {
 809         switch (((GdkEventButton *)event)->button)
 810         {
 811             case 2:
 812                 if (c->hover_uri != NULL)
 813                 {
 814                     client_new(c->hover_uri, NULL, TRUE);
 815                     return TRUE;
 816                 }
 817                 break;
 818             case 8:
 819                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 820                 return TRUE;
 821             case 9:
 822                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 823                 return TRUE;
 824         }
 825     }
 826     else if (event->type == GDK_SCROLL)
 827     {
 828         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 829             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 830         {
 831             gdk_event_get_scroll_deltas(event, &dx, &dy);
 832             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 833             z += -dy * 0.1;
 834             z = dx != 0 ? global_zoom : z;
 835             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
 836             return TRUE;
 837         }
 838     }
 839
 840     return FALSE;
 841 }
 842
 843 void
 844 keywords_load(void)
 845 {
 846     GError *err = NULL;
 847     GIOChannel *channel = NULL;
 848     gchar *path = NULL, *buf = NULL;
 849     gchar **tokens = NULL;
 850
 851     keywords = g_hash_table_new(g_str_hash, g_str_equal);
 852
 853     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
 854                             NULL);
 855     channel = g_io_channel_new_file(path, "r", &err);
 856     if (channel != NULL)
 857     {
 858         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
 859                == G_IO_STATUS_NORMAL)
 860         {
 861             g_strstrip(buf);
 862             if (buf[0] != '#')
 863             {
 864                 tokens = g_strsplit(buf, " ", 2);
 865                 if (tokens[0] != NULL && tokens[1] != NULL)
 866                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
 867                                         g_strdup(tokens[1]));
 868                 g_strfreev(tokens);
 869             }
 870             g_free(buf);
 871         }
 872         g_io_channel_shutdown(channel, FALSE, NULL);
 873     }
 874     g_free(path);
 875 }
 876
 877 gboolean
 878 keywords_try_search(WebKitWebView *web_view, const gchar *t)
 879 {
 880     gboolean ret = FALSE;
 881     gchar **tokens = NULL;
 882     gchar *val = NULL, *uri = NULL;
 883
 884     tokens = g_strsplit(t, " ", 2);
 885     if (tokens[0] != NULL && tokens[1] != NULL)
 886     {
 887         val = g_hash_table_lookup(keywords, tokens[0]);
 888         if (val != NULL)
 889         {
 890             uri = g_strdup_printf((gchar *)val, tokens[1]);
 891             webkit_web_view_load_uri(web_view, uri);
 892             g_free(uri);
 893             ret = TRUE;
 894         }
 895     }
 896     g_strfreev(tokens);
 897
 898     return ret;
 899 }
 900
 901 gboolean
 902 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
 903               WebKitHitTestResult *ht, gpointer data)
 904 {
 905     struct Client *c = (struct Client *)data;
 906     GtkAction *action = NULL;
 907     WebKitContextMenuItem *mi = NULL;
 908     const gchar *uri = NULL;
 909
 910     (void)ev;
 911
 912     if (webkit_hit_test_result_context_is_link(ht))
 913         uri = webkit_hit_test_result_get_link_uri(ht);
 914     else if (webkit_hit_test_result_context_is_image(ht))
 915         uri = webkit_hit_test_result_get_image_uri(ht);
 916     else if (webkit_hit_test_result_context_is_media(ht))
 917         uri = webkit_hit_test_result_get_media_uri(ht);
 918
 919     if (uri != NULL)
 920     {
 921         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
 922
 923         if (c->external_handler_uri != NULL)
 924             g_free(c->external_handler_uri);
 925         c->external_handler_uri = g_strdup(uri);
 926         action = gtk_action_new("external_handler", "Open with external handler",
 927                                 NULL, NULL);
 928         g_signal_connect(G_OBJECT(action), "activate",
 929                          G_CALLBACK(external_handler_run), data);
 930         mi = webkit_context_menu_item_new(action);
 931         webkit_context_menu_append(menu, mi);
 932     }
 933
 934     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
 935     return FALSE;
 936 }
 937
 938 gboolean
 939 quit_if_nothing_active(void)
 940 {
 941     if (clients == 0)
 942     {
 943         if (downloads == 0)
 944         {
 945             gtk_main_quit();
 946             return TRUE;
 947         }
 948         else
 949             gtk_widget_show_all(dm.win);
 950     }
 951
 952     return FALSE;
 953 }
 954
 955 gboolean
 956 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
 957 {
 958     gchar *uri = NULL;
 959
 960     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
 961     if (uri)
 962     {
 963         g_strstrip(uri);
 964         client_new(uri, NULL, TRUE);
 965         g_free(uri);
 966     }
 967     return TRUE;
 968 }
 969
 970 void
 971 search(gpointer data, gint direction)
 972 {
 973     struct Client *c = (struct Client *)data;
 974     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 975     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 976
 977     if (search_text == NULL)
 978         return;
 979
 980     switch (direction)
 981     {
 982         case 0:
 983             webkit_find_controller_search(fc, search_text,
 984                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 985                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 986                                           G_MAXUINT);
 987             break;
 988         case 1:
 989             webkit_find_controller_search_next(fc);
 990             break;
 991         case -1:
 992             webkit_find_controller_search_previous(fc);
 993             break;
 994     }
 995 }
 996
 997 void
 998 show_web_view(WebKitWebView *web_view, gpointer data)
 999 {
1000     struct Client *c = (struct Client *)data;
1001
1002     (void)web_view;
1003
1004     gtk_widget_grab_focus(c->web_view);
1005     gtk_widget_show_all(c->win);
1006 }
1007
1008 Window
1009 tabbed_launch(void)
1010 {
1011     gint tabbed_stdout;
1012     GIOChannel *tabbed_stdout_channel;
1013     GError *err = NULL;
1014     gchar *output = NULL;
1015     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1016     Window plug_into;
1017
1018     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1019                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1020                                   &err))
1021     {
1022         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1023         g_error_free(err);
1024         return 0;
1025     }
1026
1027     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1028     if (tabbed_stdout_channel == NULL)
1029     {
1030         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1031         return 0;
1032     }
1033     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1034     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1035     if (output == NULL)
1036     {
1037         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1038         return 0;
1039     }
1040     g_strstrip(output);
1041     plug_into = strtol(output, NULL, 16);
1042     g_free(output);
1043     if (plug_into == 0)
1044         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1045     return plug_into;
1046 }
1047
1048 void
1049 trust_user_certs(WebKitWebContext *wc)
1050 {
1051     GTlsCertificate *cert;
1052     const gchar *basedir, *file, *absfile;
1053     GDir *dir;
1054
1055     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1056     dir = g_dir_open(basedir, 0, NULL);
1057     if (dir != NULL)
1058     {
1059         file = g_dir_read_name(dir);
1060         while (file != NULL)
1061         {
1062             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1063                                        file, NULL);
1064             cert = g_tls_certificate_new_from_file(absfile, NULL);
1065             if (cert == NULL)
1066                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1067             else
1068                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1069             file = g_dir_read_name(dir);
1070         }
1071         g_dir_close(dir);
1072     }
1073 }
1074
1075
1076 int
1077 main(int argc, char **argv)
1078 {
1079     gchar *c;
1080     int opt, i;
1081
1082     gtk_init(&argc, &argv);
1083     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1084         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1085
1086     grab_environment_configuration();
1087
1088     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1089     {
1090         switch (opt)
1091         {
1092             case 'e':
1093                 embed = atol(optarg);
1094                 tabbed_automagic = FALSE;
1095                 break;
1096             case 'C':
1097                 cooperative_instances = FALSE;
1098                 break;
1099             case 'T':
1100                 tabbed_automagic = FALSE;
1101                 break;
1102             default:
1103                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1104                 exit(EXIT_FAILURE);
1105         }
1106     }
1107
1108     keywords_load();
1109     if (cooperative_instances)
1110         cooperation_setup();
1111     downloadmanager_setup();
1112
1113     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1114         embed = tabbed_launch();
1115
1116     if (!cooperative_instances || cooperative_alone)
1117     {
1118         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1119                              NULL);
1120         webkit_web_context_set_web_extensions_directory(
1121             webkit_web_context_get_default(), c
1122         );
1123     }
1124
1125     if (optind >= argc)
1126         client_new(home_uri, NULL, TRUE);
1127     else
1128     {
1129         for (i = optind; i < argc; i++)
1130             client_new(argv[i], NULL, TRUE);
1131     }
1132
1133     if (!cooperative_instances || cooperative_alone)
1134         gtk_main();
1135     exit(EXIT_SUCCESS);
1136 }