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);
  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(GSimpleAction *, GVariant *, 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 gboolean enable_console_to_stdout = FALSE;
  80 static Window embed = 0;
  81 static gchar *fifo_suffix = "main";
  82 static gdouble global_zoom = 1.0;
  83 static gchar *history_file = NULL;
  84 static gchar *home_uri = "about:blank";
  85 static gboolean initial_wc_setup_done = FALSE;
  86 static GHashTable *keywords = NULL;
  87 static gchar *search_text = NULL;
  88 static gboolean tabbed_automagic = TRUE;
  89 static gchar *user_agent = NULL;
  90
  91
  92 void
  93 client_destroy(GtkWidget *widget, gpointer data)
  94 {
  95     struct Client *c = (struct Client *)data;
  96
  97     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
  98                                          changed_load_progress, c);
  99
 100     free(c);
 101     clients--;
 102
 103     quit_if_nothing_active();
 104 }
 105
 106 gboolean
 107 client_destroy_request(WebKitWebView *web_view, gpointer data)
 108 {
 109     struct Client *c = (struct Client *)data;
 110
 111     gtk_widget_destroy(c->win);
 112
 113     return TRUE;
 114 }
 115
 116 WebKitWebView *
 117 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 118 {
 119     struct Client *c;
 120     WebKitWebContext *wc;
 121     gchar *f;
 122
 123     if (uri != NULL && cooperative_instances && !cooperative_alone)
 124     {
 125         f = ensure_uri_scheme(uri);
 126         write(cooperative_pipe_fp, f, strlen(f));
 127         write(cooperative_pipe_fp, "\n", 1);
 128         g_free(f);
 129         return NULL;
 130     }
 131
 132     c = calloc(1, sizeof(struct Client));
 133     if (!c)
 134     {
 135         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 136         exit(EXIT_FAILURE);
 137     }
 138
 139     if (embed != 0)
 140     {
 141         c->win = gtk_plug_new(embed);
 142         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 143         {
 144             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 145             gtk_widget_destroy(c->win);
 146             c->win = NULL;
 147             embed = 0;
 148         }
 149     }
 150
 151     if (c->win == NULL)
 152         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 153
 154     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 155
 156     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 157     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 158
 159     if (related_wv == NULL)
 160         c->web_view = webkit_web_view_new();
 161     else
 162         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 163     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 164
 165     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 166     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 167                      G_CALLBACK(changed_title), c);
 168     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 169                      G_CALLBACK(changed_uri), c);
 170     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 171                      G_CALLBACK(changed_load_progress), c);
 172     g_signal_connect(G_OBJECT(c->web_view), "create",
 173                      G_CALLBACK(client_new_request), NULL);
 174     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 175                      G_CALLBACK(menu_web_view), c);
 176     g_signal_connect(G_OBJECT(c->web_view), "close",
 177                      G_CALLBACK(client_destroy_request), c);
 178     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 179                      G_CALLBACK(decide_policy), NULL);
 180     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 181                      G_CALLBACK(key_web_view), c);
 182     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 183                      G_CALLBACK(key_web_view), c);
 184     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 185                      G_CALLBACK(key_web_view), c);
 186     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 187                      G_CALLBACK(hover_web_view), c);
 188     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 189                      G_CALLBACK(crashed_web_view), c);
 190
 191     if (!initial_wc_setup_done)
 192     {
 193         if (accepted_language[0] != NULL)
 194             webkit_web_context_set_preferred_languages(wc, accepted_language);
 195
 196         g_signal_connect(G_OBJECT(wc), "download-started",
 197                          G_CALLBACK(download_handle_start), NULL);
 198
 199         trust_user_certs(wc);
 200
 201         initial_wc_setup_done = TRUE;
 202     }
 203
 204     if (user_agent != NULL)
 205         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 206                      "user-agent", user_agent, NULL);
 207
 208     if (enable_console_to_stdout)
 209         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 210
 211     if (enable_webgl)
 212         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 213
 214     c->location = gtk_entry_new();
 215     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 216                      G_CALLBACK(key_location), c);
 217
 218     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 219     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 220     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 221
 222     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 223
 224     if (show)
 225         show_web_view(NULL, c);
 226     else
 227         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 228                          G_CALLBACK(show_web_view), c);
 229
 230     if (uri != NULL)
 231     {
 232         f = ensure_uri_scheme(uri);
 233         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 234         g_free(f);
 235     }
 236
 237     clients++;
 238
 239     return WEBKIT_WEB_VIEW(c->web_view);
 240 }
 241
 242 WebKitWebView *
 243 client_new_request(WebKitWebView *web_view,
 244                    WebKitNavigationAction *navigation_action, gpointer data)
 245 {
 246     return client_new(NULL, web_view, FALSE);
 247 }
 248
 249 void
 250 cooperation_setup(void)
 251 {
 252     GIOChannel *towatch;
 253     gchar *fifofilename, *fifopath;
 254
 255     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 256     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 257     g_free(fifofilename);
 258
 259     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 260         mkfifo(fifopath, 0600);
 261
 262     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 263     if (!cooperative_pipe_fp)
 264     {
 265         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 266     }
 267     else
 268     {
 269         if (write(cooperative_pipe_fp, "", 0) == -1)
 270         {
 271             /* Could not do an empty write to the FIFO which means there's
 272              * no one listening. */
 273             close(cooperative_pipe_fp);
 274             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 275             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 276         }
 277         else
 278             cooperative_alone = FALSE;
 279     }
 280
 281     g_free(fifopath);
 282 }
 283
 284 void
 285 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 286 {
 287     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 288     WebKitURIResponse *resp;
 289     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 290     gdouble p, size_mb;
 291     const gchar *uri;
 292     gchar *t, *filename, *base;
 293
 294     p = webkit_download_get_estimated_progress(download);
 295     p = p > 1 ? 1 : p;
 296     p = p < 0 ? 0 : p;
 297     p *= 100;
 298     resp = webkit_download_get_response(download);
 299     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 300
 301     uri = webkit_download_get_destination(download);
 302     filename = g_filename_from_uri(uri, NULL, NULL);
 303     if (filename == NULL)
 304     {
 305         /* This really should not happen because WebKit uses that URI to
 306          * write to a file... */
 307         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 308         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 309                             webkit_uri_response_get_uri(resp), p, size_mb);
 310     }
 311     else
 312     {
 313         base = g_path_get_basename(filename);
 314         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 315         g_free(filename);
 316         g_free(base);
 317     }
 318     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 319     g_free(t);
 320 }
 321
 322 void
 323 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 324 {
 325     struct Client *c = (struct Client *)data;
 326     gdouble p;
 327
 328     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 329     if (p == 1)
 330         p = 0;
 331     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 332 }
 333
 334 void
 335 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 336 {
 337     const gchar *t, *u;
 338     struct Client *c = (struct Client *)data;
 339
 340     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 341     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 342
 343     u = u == NULL ? __NAME__ : u;
 344     u = u[0] == 0 ? __NAME__ : u;
 345
 346     t = t == NULL ? u : t;
 347     t = t[0] == 0 ? u : t;
 348
 349     gtk_window_set_title(GTK_WINDOW(c->win), t);
 350 }
 351
 352 void
 353 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 354 {
 355     const gchar *t;
 356     struct Client *c = (struct Client *)data;
 357     FILE *fp;
 358
 359     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 360
 361     /* When a web process crashes, we get a "notify::uri" signal, but we
 362      * can no longer read a meaningful URI. It's just an empty string
 363      * now. Not updating the location bar in this scenario is important,
 364      * because we would override the "WEB PROCESS CRASHED" message. */
 365     if (t != NULL && strlen(t) > 0)
 366     {
 367         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 368
 369         if (history_file != NULL)
 370         {
 371             fp = fopen(history_file, "a");
 372             if (fp != NULL)
 373             {
 374                 fprintf(fp, "%s\n", t);
 375                 fclose(fp);
 376             }
 377             else
 378                 perror(__NAME__": Error opening history file");
 379         }
 380     }
 381 }
 382
 383 gboolean
 384 crashed_web_view(WebKitWebView *web_view, gpointer data)
 385 {
 386     gchar *t;
 387     struct Client *c = (struct Client *)data;
 388
 389     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 390                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 391     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 392     g_free(t);
 393
 394     return TRUE;
 395 }
 396
 397 gboolean
 398 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 399               WebKitPolicyDecisionType type, gpointer data)
 400 {
 401     WebKitResponsePolicyDecision *r;
 402
 403     switch (type)
 404     {
 405         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 406             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 407             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 408                 webkit_policy_decision_download(decision);
 409             else
 410                 webkit_policy_decision_use(decision);
 411             break;
 412         default:
 413             /* Use whatever default there is. */
 414             return FALSE;
 415     }
 416     return TRUE;
 417 }
 418
 419 void
 420 download_handle_finished(WebKitDownload *download, gpointer data)
 421 {
 422     downloads--;
 423 }
 424
 425 void
 426 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 427                       gpointer data)
 428 {
 429     g_signal_connect(G_OBJECT(download), "decide-destination",
 430                      G_CALLBACK(download_handle), data);
 431 }
 432
 433 gboolean
 434 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 435 {
 436     gchar *sug_clean, *path, *path2 = NULL, *uri;
 437     GtkToolItem *tb;
 438     int suffix = 1;
 439     size_t i;
 440
 441     sug_clean = g_strdup(suggested_filename);
 442     for (i = 0; i < strlen(sug_clean); i++)
 443         if (sug_clean[i] == G_DIR_SEPARATOR)
 444             sug_clean[i] = '_';
 445
 446     path = g_build_filename(download_dir, sug_clean, NULL);
 447     path2 = g_strdup(path);
 448     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 449     {
 450         g_free(path2);
 451
 452         path2 = g_strdup_printf("%s.%d", path, suffix);
 453         suffix++;
 454     }
 455
 456     if (suffix == 1000)
 457     {
 458         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 459         webkit_download_cancel(download);
 460     }
 461     else
 462     {
 463         uri = g_filename_to_uri(path2, NULL, NULL);
 464         webkit_download_set_destination(download, uri);
 465         g_free(uri);
 466
 467         tb = gtk_tool_button_new(NULL, NULL);
 468         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 469         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 470         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 471         gtk_widget_show_all(dm.win);
 472
 473         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 474                          G_CALLBACK(changed_download_progress), tb);
 475
 476         downloads++;
 477         g_signal_connect(G_OBJECT(download), "finished",
 478                          G_CALLBACK(download_handle_finished), NULL);
 479
 480         g_object_ref(download);
 481         g_signal_connect(G_OBJECT(tb), "clicked",
 482                          G_CALLBACK(downloadmanager_cancel), download);
 483     }
 484
 485     g_free(sug_clean);
 486     g_free(path);
 487     g_free(path2);
 488
 489     /* Propagate -- to whom it may concern. */
 490     return FALSE;
 491 }
 492
 493 void
 494 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 495 {
 496     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 497
 498     webkit_download_cancel(download);
 499     g_object_unref(download);
 500
 501     gtk_widget_destroy(GTK_WIDGET(tb));
 502 }
 503
 504 gboolean
 505 downloadmanager_delete(GtkWidget *obj, gpointer data)
 506 {
 507     if (!quit_if_nothing_active())
 508         gtk_widget_hide(dm.win);
 509
 510     return TRUE;
 511 }
 512
 513 void
 514 downloadmanager_setup(void)
 515 {
 516     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 517     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 518     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 519     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 520     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 521                      G_CALLBACK(downloadmanager_delete), NULL);
 522     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 523                      G_CALLBACK(key_downloadmanager), NULL);
 524
 525     dm.toolbar = gtk_toolbar_new();
 526     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 527                                    GTK_ORIENTATION_VERTICAL);
 528     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 529     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 530
 531     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 532     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 533                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 534     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 535
 536     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 537 }
 538
 539 gchar *
 540 ensure_uri_scheme(const gchar *t)
 541 {
 542     gchar *f, *fabs;
 543
 544     f = g_ascii_strdown(t, -1);
 545     if (!g_str_has_prefix(f, "http:") &&
 546         !g_str_has_prefix(f, "https:") &&
 547         !g_str_has_prefix(f, "file:") &&
 548         !g_str_has_prefix(f, "about:"))
 549     {
 550         g_free(f);
 551         fabs = realpath(t, NULL);
 552         if (fabs != NULL)
 553         {
 554             f = g_strdup_printf("file://%s", fabs);
 555             free(fabs);
 556         }
 557         else
 558             f = g_strdup_printf("http://%s", t);
 559         return f;
 560     }
 561     else
 562         return g_strdup(t);
 563 }
 564
 565 void
 566 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 567 {
 568     struct Client *c = (struct Client *)data;
 569     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 570     GPid pid;
 571     GError *err = NULL;
 572
 573     (void)simple;
 574     (void)param;
 575
 576     argv[2] = c->external_handler_uri;
 577     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 578                        &pid, &err))
 579     {
 580         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 581                 err->message);
 582         g_error_free(err);
 583     }
 584     else
 585         g_spawn_close_pid(pid);
 586 }
 587
 588 void
 589 grab_environment_configuration(void)
 590 {
 591     const gchar *e;
 592
 593     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 594     if (e != NULL)
 595         accepted_language[0] = g_strdup(e);
 596
 597     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 598     if (e != NULL)
 599         download_dir = g_strdup(e);
 600
 601     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 602     if (e != NULL)
 603         enable_console_to_stdout = TRUE;
 604
 605     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 606     if (e != NULL)
 607         enable_webgl = TRUE;
 608
 609     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 610     if (e != NULL)
 611         fifo_suffix = g_strdup(e);
 612
 613     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 614     if (e != NULL)
 615         history_file = g_strdup(e);
 616
 617     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 618     if (e != NULL)
 619         home_uri = g_strdup(e);
 620
 621     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 622     if (e != NULL)
 623         user_agent = g_strdup(e);
 624
 625     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 626     if (e != NULL)
 627         global_zoom = atof(e);
 628 }
 629
 630 void
 631 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 632                gpointer data)
 633 {
 634     struct Client *c = (struct Client *)data;
 635
 636     if (!gtk_widget_is_focus(c->location))
 637     {
 638         if (webkit_hit_test_result_context_is_link(ht))
 639         {
 640             gtk_entry_set_text(GTK_ENTRY(c->location),
 641                                webkit_hit_test_result_get_link_uri(ht));
 642
 643             if (c->hover_uri != NULL)
 644                 g_free(c->hover_uri);
 645             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 646         }
 647         else
 648         {
 649             gtk_entry_set_text(GTK_ENTRY(c->location),
 650                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 651
 652             if (c->hover_uri != NULL)
 653                 g_free(c->hover_uri);
 654             c->hover_uri = NULL;
 655         }
 656     }
 657 }
 658
 659 gboolean
 660 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 661 {
 662     struct Client *c = (struct Client *)data;
 663     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 664     gchar *f;
 665
 666     if (event->type == GDK_KEY_PRESS)
 667     {
 668         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 669         {
 670             switch (((GdkEventKey *)event)->keyval)
 671             {
 672                 case GDK_KEY_q:  /* close window (left hand) */
 673                     gtk_widget_destroy(c->win);
 674                     return TRUE;
 675                 case GDK_KEY_w:  /* home (left hand) */
 676                     f = ensure_uri_scheme(home_uri);
 677                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 678                     g_free(f);
 679                     return TRUE;
 680                 case GDK_KEY_e:  /* new tab (left hand) */
 681                     f = ensure_uri_scheme(home_uri);
 682                     client_new(f, NULL, TRUE);
 683                     g_free(f);
 684                     return TRUE;
 685                 case GDK_KEY_r:  /* reload (left hand) */
 686                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 687                                                         c->web_view));
 688                     return TRUE;
 689                 case GDK_KEY_d:  /* download manager (left hand) */
 690                     gtk_widget_show_all(dm.win);
 691                     return TRUE;
 692                 case GDK_KEY_2:  /* search forward (left hand) */
 693                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 694                     search(c, 1);
 695                     return TRUE;
 696                 case GDK_KEY_3:  /* search backward (left hand) */
 697                     search(c, -1);
 698                     return TRUE;
 699                 case GDK_KEY_l:  /* location (BOTH hands) */
 700                     gtk_widget_grab_focus(c->location);
 701                     return TRUE;
 702                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 703                     gtk_widget_grab_focus(c->location);
 704                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 705                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 706                     return TRUE;
 707                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 708                     trust_user_certs(wc);
 709                     return TRUE;
 710                 case GDK_KEY_x:  /* launch external handler (left hand) */
 711                     if (c->external_handler_uri != NULL)
 712                         g_free(c->external_handler_uri);
 713                     c->external_handler_uri = g_strdup(
 714                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 715                     external_handler_run(NULL, NULL, c);
 716                     return TRUE;
 717             }
 718         }
 719         /* navigate backward (left hand) */
 720         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 721         {
 722             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 723             return TRUE;
 724         }
 725         /* navigate forward (left hand) */
 726         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 727         {
 728             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 729             return TRUE;
 730         }
 731     }
 732
 733     return FALSE;
 734 }
 735
 736 gboolean
 737 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 738 {
 739     if (event->type == GDK_KEY_PRESS)
 740     {
 741         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 742         {
 743             switch (((GdkEventKey *)event)->keyval)
 744             {
 745                 case GDK_KEY_d:  /* close window (left hand) */
 746                 case GDK_KEY_q:
 747                     downloadmanager_delete(dm.win, NULL);
 748                     return TRUE;
 749             }
 750         }
 751     }
 752
 753     return FALSE;
 754 }
 755
 756 gboolean
 757 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 758 {
 759     struct Client *c = (struct Client *)data;
 760     const gchar *t;
 761     gchar *f;
 762
 763     if (key_common(widget, event, data))
 764         return TRUE;
 765
 766     if (event->type == GDK_KEY_PRESS)
 767     {
 768         switch (((GdkEventKey *)event)->keyval)
 769         {
 770             case GDK_KEY_KP_Enter:
 771             case GDK_KEY_Return:
 772                 gtk_widget_grab_focus(c->web_view);
 773                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 774                 if (t != NULL && t[0] == ':' && t[1] == '/')
 775                 {
 776                     if (search_text != NULL)
 777                         g_free(search_text);
 778                     search_text = g_strdup(t + 2);
 779                     search(c, 0);
 780                 }
 781                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 782                 {
 783                     f = ensure_uri_scheme(t);
 784                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 785                     g_free(f);
 786                 }
 787                 return TRUE;
 788             case GDK_KEY_Escape:
 789                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 790                 gtk_entry_set_text(GTK_ENTRY(c->location),
 791                                    (t == NULL ? __NAME__ : t));
 792                 return TRUE;
 793         }
 794     }
 795
 796     return FALSE;
 797 }
 798
 799 gboolean
 800 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 801 {
 802     struct Client *c = (struct Client *)data;
 803     gdouble dx, dy;
 804     gfloat z;
 805
 806     if (key_common(widget, event, data))
 807         return TRUE;
 808
 809     if (event->type == GDK_KEY_PRESS)
 810     {
 811         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 812         {
 813             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 814             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 815         }
 816     }
 817     else if (event->type == GDK_BUTTON_RELEASE)
 818     {
 819         switch (((GdkEventButton *)event)->button)
 820         {
 821             case 2:
 822                 if (c->hover_uri != NULL)
 823                 {
 824                     client_new(c->hover_uri, NULL, TRUE);
 825                     return TRUE;
 826                 }
 827                 break;
 828             case 8:
 829                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 830                 return TRUE;
 831             case 9:
 832                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 833                 return TRUE;
 834         }
 835     }
 836     else if (event->type == GDK_SCROLL)
 837     {
 838         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 839             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 840         {
 841             gdk_event_get_scroll_deltas(event, &dx, &dy);
 842             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 843             z += -dy * 0.1;
 844             z = dx != 0 ? global_zoom : z;
 845             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
 846             return TRUE;
 847         }
 848     }
 849
 850     return FALSE;
 851 }
 852
 853 void
 854 keywords_load(void)
 855 {
 856     GError *err = NULL;
 857     GIOChannel *channel = NULL;
 858     gchar *path = NULL, *buf = NULL;
 859     gchar **tokens = NULL;
 860
 861     keywords = g_hash_table_new(g_str_hash, g_str_equal);
 862
 863     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
 864                             NULL);
 865     channel = g_io_channel_new_file(path, "r", &err);
 866     if (channel != NULL)
 867     {
 868         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
 869                == G_IO_STATUS_NORMAL)
 870         {
 871             g_strstrip(buf);
 872             if (buf[0] != '#')
 873             {
 874                 tokens = g_strsplit(buf, " ", 2);
 875                 if (tokens[0] != NULL && tokens[1] != NULL)
 876                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
 877                                         g_strdup(tokens[1]));
 878                 g_strfreev(tokens);
 879             }
 880             g_free(buf);
 881         }
 882         g_io_channel_shutdown(channel, FALSE, NULL);
 883     }
 884     g_free(path);
 885 }
 886
 887 gboolean
 888 keywords_try_search(WebKitWebView *web_view, const gchar *t)
 889 {
 890     gboolean ret = FALSE;
 891     gchar **tokens = NULL;
 892     gchar *val = NULL, *escaped = NULL, *uri = NULL;
 893
 894     tokens = g_strsplit(t, " ", 2);
 895     if (tokens[0] != NULL && tokens[1] != NULL)
 896     {
 897         val = g_hash_table_lookup(keywords, tokens[0]);
 898         if (val != NULL)
 899         {
 900             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
 901             uri = g_strdup_printf((gchar *)val, escaped);
 902             webkit_web_view_load_uri(web_view, uri);
 903             g_free(uri);
 904             g_free(escaped);
 905             ret = TRUE;
 906         }
 907     }
 908     g_strfreev(tokens);
 909
 910     return ret;
 911 }
 912
 913 gboolean
 914 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
 915               WebKitHitTestResult *ht, gpointer data)
 916 {
 917     struct Client *c = (struct Client *)data;
 918     GSimpleAction *action = NULL;
 919     WebKitContextMenuItem *mi = NULL;
 920     const gchar *uri = NULL;
 921
 922     (void)ev;
 923
 924     if (webkit_hit_test_result_context_is_link(ht))
 925         uri = webkit_hit_test_result_get_link_uri(ht);
 926     else if (webkit_hit_test_result_context_is_image(ht))
 927         uri = webkit_hit_test_result_get_image_uri(ht);
 928     else if (webkit_hit_test_result_context_is_media(ht))
 929         uri = webkit_hit_test_result_get_media_uri(ht);
 930
 931     if (uri != NULL)
 932     {
 933         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
 934
 935         if (c->external_handler_uri != NULL)
 936             g_free(c->external_handler_uri);
 937         c->external_handler_uri = g_strdup(uri);
 938         action = g_simple_action_new("external_handler", NULL);
 939         g_signal_connect(G_OBJECT(action), "activate",
 940                          G_CALLBACK(external_handler_run), data);
 941         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
 942                                                        "Open with external handler",
 943                                                        NULL);
 944         webkit_context_menu_append(menu, mi);
 945         g_object_unref(action);
 946     }
 947
 948     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
 949     return FALSE;
 950 }
 951
 952 gboolean
 953 quit_if_nothing_active(void)
 954 {
 955     if (clients == 0)
 956     {
 957         if (downloads == 0)
 958         {
 959             gtk_main_quit();
 960             return TRUE;
 961         }
 962         else
 963             gtk_widget_show_all(dm.win);
 964     }
 965
 966     return FALSE;
 967 }
 968
 969 gboolean
 970 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
 971 {
 972     gchar *uri = NULL;
 973
 974     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
 975     if (uri)
 976     {
 977         g_strstrip(uri);
 978         client_new(uri, NULL, TRUE);
 979         g_free(uri);
 980     }
 981     return TRUE;
 982 }
 983
 984 void
 985 search(gpointer data, gint direction)
 986 {
 987     struct Client *c = (struct Client *)data;
 988     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 989     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 990
 991     if (search_text == NULL)
 992         return;
 993
 994     switch (direction)
 995     {
 996         case 0:
 997             webkit_find_controller_search(fc, search_text,
 998                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 999                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1000                                           G_MAXUINT);
1001             break;
1002         case 1:
1003             webkit_find_controller_search_next(fc);
1004             break;
1005         case -1:
1006             webkit_find_controller_search_previous(fc);
1007             break;
1008     }
1009 }
1010
1011 void
1012 show_web_view(WebKitWebView *web_view, gpointer data)
1013 {
1014     struct Client *c = (struct Client *)data;
1015
1016     (void)web_view;
1017
1018     gtk_widget_grab_focus(c->web_view);
1019     gtk_widget_show_all(c->win);
1020 }
1021
1022 Window
1023 tabbed_launch(void)
1024 {
1025     gint tabbed_stdout;
1026     GIOChannel *tabbed_stdout_channel;
1027     GError *err = NULL;
1028     gchar *output = NULL;
1029     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1030     Window plug_into;
1031
1032     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1033                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1034                                   &err))
1035     {
1036         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1037         g_error_free(err);
1038         return 0;
1039     }
1040
1041     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1042     if (tabbed_stdout_channel == NULL)
1043     {
1044         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1045         return 0;
1046     }
1047     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1048     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1049     if (output == NULL)
1050     {
1051         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1052         return 0;
1053     }
1054     g_strstrip(output);
1055     plug_into = strtol(output, NULL, 16);
1056     g_free(output);
1057     if (plug_into == 0)
1058         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1059     return plug_into;
1060 }
1061
1062 void
1063 trust_user_certs(WebKitWebContext *wc)
1064 {
1065     GTlsCertificate *cert;
1066     const gchar *basedir, *file, *absfile;
1067     GDir *dir;
1068
1069     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1070     dir = g_dir_open(basedir, 0, NULL);
1071     if (dir != NULL)
1072     {
1073         file = g_dir_read_name(dir);
1074         while (file != NULL)
1075         {
1076             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1077                                        file, NULL);
1078             cert = g_tls_certificate_new_from_file(absfile, NULL);
1079             if (cert == NULL)
1080                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1081             else
1082                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1083             file = g_dir_read_name(dir);
1084         }
1085         g_dir_close(dir);
1086     }
1087 }
1088
1089
1090 int
1091 main(int argc, char **argv)
1092 {
1093     gchar *c;
1094     int opt, i;
1095
1096     gtk_init(&argc, &argv);
1097     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1098         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1099
1100     grab_environment_configuration();
1101
1102     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1103     {
1104         switch (opt)
1105         {
1106             case 'e':
1107                 embed = atol(optarg);
1108                 tabbed_automagic = FALSE;
1109                 break;
1110             case 'C':
1111                 cooperative_instances = FALSE;
1112                 break;
1113             case 'T':
1114                 tabbed_automagic = FALSE;
1115                 break;
1116             default:
1117                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1118                 exit(EXIT_FAILURE);
1119         }
1120     }
1121
1122     keywords_load();
1123     if (cooperative_instances)
1124         cooperation_setup();
1125     downloadmanager_setup();
1126
1127     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1128         embed = tabbed_launch();
1129
1130     if (!cooperative_instances || cooperative_alone)
1131     {
1132         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1133                              NULL);
1134         webkit_web_context_set_web_extensions_directory(
1135             webkit_web_context_get_default(), c
1136         );
1137     }
1138
1139     if (optind >= argc)
1140         client_new(home_uri, NULL, TRUE);
1141     else
1142     {
1143         for (i = optind; i < argc; i++)
1144             client_new(argv[i], NULL, TRUE);
1145     }
1146
1147     if (!cooperative_instances || cooperative_alone)
1148         gtk_main();
1149     exit(EXIT_SUCCESS);
1150 }