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 #include <JavaScriptCore/JavaScript.h>
  15
  16
  17 static void client_destroy(GtkWidget *, gpointer);
  18 static gboolean client_destroy_request(WebKitWebView *, gpointer);
  19 static WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean);
  20 static WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  21                                          gpointer);
  22 static void cooperation_setup(void);
  23 static void changed_download_progress(GObject *, GParamSpec *, gpointer);
  24 static void changed_load_progress(GObject *, GParamSpec *, gpointer);
  25 static void changed_title(GObject *, GParamSpec *, gpointer);
  26 static void changed_uri(GObject *, GParamSpec *, gpointer);
  27 static gboolean crashed_web_view(WebKitWebView *, gpointer);
  28 static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  29                               WebKitPolicyDecisionType, gpointer);
  30 static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  31 static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  32 static void downloadmanager_cancel(GtkToolButton *, gpointer);
  33 static gboolean downloadmanager_delete(GtkWidget *, gpointer);
  34 static void downloadmanager_setup(void);
  35 static gchar *ensure_uri_scheme(const gchar *);
  36 static void external_handler_run(GSimpleAction *, GVariant *, gpointer);
  37 static void grab_environment_configuration(void);
  38 static void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  39 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  40 static void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  41 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  42 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  43 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  44 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  45 static void keywords_load(void);
  46 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  47 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  48                               WebKitHitTestResult *, gpointer);
  49 static gboolean quit_if_nothing_active(void);
  50 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  51 static void run_user_scripts(WebKitWebView *);
  52 static void search(gpointer, gint);
  53 static void show_web_view(WebKitWebView *, gpointer);
  54 static Window tabbed_launch(void);
  55 static void trust_user_certs(WebKitWebContext *);
  56
  57
  58 struct Client
  59 {
  60     gchar *external_handler_uri;
  61     gchar *hover_uri;
  62     gchar *feed_html;
  63     GtkWidget *location;
  64     GtkWidget *vbox;
  65     GtkWidget *web_view;
  66     GtkWidget *win;
  67 };
  68
  69 struct DownloadManager
  70 {
  71     GtkWidget *scroll;
  72     GtkWidget *toolbar;
  73     GtkWidget *win;
  74 } dm;
  75
  76
  77 static const gchar *accepted_language[2] = { NULL, NULL };
  78 static gint clients = 0, downloads = 0;
  79 static gboolean cooperative_alone = TRUE;
  80 static gboolean cooperative_instances = TRUE;
  81 static int cooperative_pipe_fp = 0;
  82 static gchar *download_dir = "/var/tmp";
  83 static gboolean enable_webgl = FALSE;
  84 static gboolean enable_console_to_stdout = FALSE;
  85 static Window embed = 0;
  86 static gchar *fifo_suffix = "main";
  87 static gdouble global_zoom = 1.0;
  88 static gchar *history_file = NULL;
  89 static gchar *home_uri = "about:blank";
  90 static gboolean initial_wc_setup_done = FALSE;
  91 static GHashTable *keywords = NULL;
  92 static gchar *search_text = NULL;
  93 static gboolean tabbed_automagic = TRUE;
  94 static gchar *user_agent = NULL;
  95
  96
  97 void
  98 client_destroy(GtkWidget *widget, gpointer data)
  99 {
 100     struct Client *c = (struct Client *)data;
 101
 102     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 103                                          changed_load_progress, c);
 104
 105     free(c);
 106     clients--;
 107
 108     quit_if_nothing_active();
 109 }
 110
 111 gboolean
 112 client_destroy_request(WebKitWebView *web_view, gpointer data)
 113 {
 114     struct Client *c = (struct Client *)data;
 115
 116     gtk_widget_destroy(c->win);
 117
 118     return TRUE;
 119 }
 120
 121 WebKitWebView *
 122 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 123 {
 124     struct Client *c;
 125     WebKitWebContext *wc;
 126     gchar *f;
 127
 128     if (uri != NULL && cooperative_instances && !cooperative_alone)
 129     {
 130         f = ensure_uri_scheme(uri);
 131         write(cooperative_pipe_fp, f, strlen(f));
 132         write(cooperative_pipe_fp, "\n", 1);
 133         g_free(f);
 134         return NULL;
 135     }
 136
 137     c = calloc(1, sizeof(struct Client));
 138     if (!c)
 139     {
 140         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 141         exit(EXIT_FAILURE);
 142     }
 143
 144     if (embed != 0)
 145     {
 146         c->win = gtk_plug_new(embed);
 147         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 148         {
 149             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 150             gtk_widget_destroy(c->win);
 151             c->win = NULL;
 152             embed = 0;
 153         }
 154     }
 155
 156     if (c->win == NULL)
 157         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 158
 159     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 160
 161     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 162     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 163
 164     if (related_wv == NULL)
 165         c->web_view = webkit_web_view_new();
 166     else
 167         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 168     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 169
 170     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 171     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 172                      G_CALLBACK(changed_title), c);
 173     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 174                      G_CALLBACK(changed_uri), c);
 175     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 176                      G_CALLBACK(changed_load_progress), c);
 177     g_signal_connect(G_OBJECT(c->web_view), "create",
 178                      G_CALLBACK(client_new_request), NULL);
 179     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 180                      G_CALLBACK(menu_web_view), c);
 181     g_signal_connect(G_OBJECT(c->web_view), "close",
 182                      G_CALLBACK(client_destroy_request), c);
 183     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 184                      G_CALLBACK(decide_policy), NULL);
 185     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 186                      G_CALLBACK(key_web_view), c);
 187     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 188                      G_CALLBACK(key_web_view), c);
 189     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 190                      G_CALLBACK(key_web_view), c);
 191     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 192                      G_CALLBACK(hover_web_view), c);
 193     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 194                      G_CALLBACK(crashed_web_view), c);
 195
 196     if (!initial_wc_setup_done)
 197     {
 198         if (accepted_language[0] != NULL)
 199             webkit_web_context_set_preferred_languages(wc, accepted_language);
 200
 201         g_signal_connect(G_OBJECT(wc), "download-started",
 202                          G_CALLBACK(download_handle_start), NULL);
 203
 204         trust_user_certs(wc);
 205
 206         initial_wc_setup_done = TRUE;
 207     }
 208
 209     if (user_agent != NULL)
 210         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 211                      "user-agent", user_agent, NULL);
 212
 213     if (enable_console_to_stdout)
 214         webkit_settings_set_enable_write_console_messages_to_stdout(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 215
 216     if (enable_webgl)
 217         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 218
 219     c->location = gtk_entry_new();
 220     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 221                      G_CALLBACK(key_location), c);
 222     g_signal_connect(G_OBJECT(c->location), "icon-release",
 223                      G_CALLBACK(icon_location), c);
 224     /* XXX This is a workaround. Setting this to NULL (which is done in
 225      * grab_feeds_finished() if no feed has been detected) adds a little
 226      * padding left of the text. Not sure why. The point of this call
 227      * right here is to have that padding right from the start. This
 228      * avoids a graphical artifact. */
 229     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 230                                       GTK_ENTRY_ICON_PRIMARY,
 231                                       NULL);
 232
 233     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 234     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 235     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 236
 237     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 238
 239     if (show)
 240         show_web_view(NULL, c);
 241     else
 242         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 243                          G_CALLBACK(show_web_view), c);
 244
 245     if (uri != NULL)
 246     {
 247         f = ensure_uri_scheme(uri);
 248         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 249         g_free(f);
 250     }
 251
 252     clients++;
 253
 254     return WEBKIT_WEB_VIEW(c->web_view);
 255 }
 256
 257 WebKitWebView *
 258 client_new_request(WebKitWebView *web_view,
 259                    WebKitNavigationAction *navigation_action, gpointer data)
 260 {
 261     return client_new(NULL, web_view, FALSE);
 262 }
 263
 264 void
 265 cooperation_setup(void)
 266 {
 267     GIOChannel *towatch;
 268     gchar *fifofilename, *fifopath;
 269
 270     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 271     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 272     g_free(fifofilename);
 273
 274     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 275         mkfifo(fifopath, 0600);
 276
 277     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 278     if (!cooperative_pipe_fp)
 279     {
 280         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 281     }
 282     else
 283     {
 284         if (write(cooperative_pipe_fp, "", 0) == -1)
 285         {
 286             /* Could not do an empty write to the FIFO which means there's
 287              * no one listening. */
 288             close(cooperative_pipe_fp);
 289             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 290             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 291         }
 292         else
 293             cooperative_alone = FALSE;
 294     }
 295
 296     g_free(fifopath);
 297 }
 298
 299 void
 300 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 301 {
 302     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 303     WebKitURIResponse *resp;
 304     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 305     gdouble p, size_mb;
 306     const gchar *uri;
 307     gchar *t, *filename, *base;
 308
 309     p = webkit_download_get_estimated_progress(download);
 310     p = p > 1 ? 1 : p;
 311     p = p < 0 ? 0 : p;
 312     p *= 100;
 313     resp = webkit_download_get_response(download);
 314     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 315
 316     uri = webkit_download_get_destination(download);
 317     filename = g_filename_from_uri(uri, NULL, NULL);
 318     if (filename == NULL)
 319     {
 320         /* This really should not happen because WebKit uses that URI to
 321          * write to a file... */
 322         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 323         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 324                             webkit_uri_response_get_uri(resp), p, size_mb);
 325     }
 326     else
 327     {
 328         base = g_path_get_basename(filename);
 329         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 330         g_free(filename);
 331         g_free(base);
 332     }
 333     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 334     g_free(t);
 335 }
 336
 337 void
 338 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 339 {
 340     struct Client *c = (struct Client *)data;
 341     gdouble p;
 342     gchar *grab_feeds =
 343         "a = document.querySelectorAll('"
 344         "    html > head > link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 345         "    html > head > link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 346         "');"
 347         "if (a.length == 0)"
 348         "    null;"
 349         "else"
 350         "{"
 351         "    out = '';"
 352         "    for (i = 0; i < a.length; i++)"
 353         "    {"
 354         "        url = encodeURIComponent(a[i].href);"
 355         "        if ('title' in a[i] && a[i].title != '')"
 356         "            title = encodeURIComponent(a[i].title);"
 357         "        else"
 358         "            title = url;"
 359         "        out += '<li><a href=\"' + url + '\">' + title + '</a></li>';"
 360         "    }"
 361         "    out;"
 362         "}";
 363
 364     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 365     if (p == 1)
 366     {
 367         p = 0;
 368
 369         /* The page has loaded fully. We now run the short JavaScript
 370          * snippet above that operates on the DOM. It tries to grab all
 371          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 372          * references. */
 373         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view),
 374                                        grab_feeds, NULL,
 375                                        grab_feeds_finished, c);
 376
 377         run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 378     }
 379     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 380 }
 381
 382 void
 383 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 384 {
 385     const gchar *t, *u;
 386     struct Client *c = (struct Client *)data;
 387
 388     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 389     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 390
 391     u = u == NULL ? __NAME__ : u;
 392     u = u[0] == 0 ? __NAME__ : u;
 393
 394     t = t == NULL ? u : t;
 395     t = t[0] == 0 ? u : t;
 396
 397     gtk_window_set_title(GTK_WINDOW(c->win), t);
 398 }
 399
 400 void
 401 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 402 {
 403     const gchar *t;
 404     struct Client *c = (struct Client *)data;
 405     FILE *fp;
 406
 407     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 408
 409     /* When a web process crashes, we get a "notify::uri" signal, but we
 410      * can no longer read a meaningful URI. It's just an empty string
 411      * now. Not updating the location bar in this scenario is important,
 412      * because we would override the "WEB PROCESS CRASHED" message. */
 413     if (t != NULL && strlen(t) > 0)
 414     {
 415         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 416
 417         if (history_file != NULL)
 418         {
 419             fp = fopen(history_file, "a");
 420             if (fp != NULL)
 421             {
 422                 fprintf(fp, "%s\n", t);
 423                 fclose(fp);
 424             }
 425             else
 426                 perror(__NAME__": Error opening history file");
 427         }
 428     }
 429 }
 430
 431 gboolean
 432 crashed_web_view(WebKitWebView *web_view, gpointer data)
 433 {
 434     gchar *t;
 435     struct Client *c = (struct Client *)data;
 436
 437     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 438                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 439     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 440     g_free(t);
 441
 442     return TRUE;
 443 }
 444
 445 gboolean
 446 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 447               WebKitPolicyDecisionType type, gpointer data)
 448 {
 449     WebKitResponsePolicyDecision *r;
 450
 451     switch (type)
 452     {
 453         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 454             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 455             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 456                 webkit_policy_decision_download(decision);
 457             else
 458                 webkit_policy_decision_use(decision);
 459             break;
 460         default:
 461             /* Use whatever default there is. */
 462             return FALSE;
 463     }
 464     return TRUE;
 465 }
 466
 467 void
 468 download_handle_finished(WebKitDownload *download, gpointer data)
 469 {
 470     downloads--;
 471 }
 472
 473 void
 474 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 475                       gpointer data)
 476 {
 477     g_signal_connect(G_OBJECT(download), "decide-destination",
 478                      G_CALLBACK(download_handle), data);
 479 }
 480
 481 gboolean
 482 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 483 {
 484     gchar *sug_clean, *path, *path2 = NULL, *uri;
 485     GtkToolItem *tb;
 486     int suffix = 1;
 487     size_t i;
 488
 489     sug_clean = g_strdup(suggested_filename);
 490     for (i = 0; i < strlen(sug_clean); i++)
 491         if (sug_clean[i] == G_DIR_SEPARATOR)
 492             sug_clean[i] = '_';
 493
 494     path = g_build_filename(download_dir, sug_clean, NULL);
 495     path2 = g_strdup(path);
 496     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 497     {
 498         g_free(path2);
 499
 500         path2 = g_strdup_printf("%s.%d", path, suffix);
 501         suffix++;
 502     }
 503
 504     if (suffix == 1000)
 505     {
 506         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 507         webkit_download_cancel(download);
 508     }
 509     else
 510     {
 511         uri = g_filename_to_uri(path2, NULL, NULL);
 512         webkit_download_set_destination(download, uri);
 513         g_free(uri);
 514
 515         tb = gtk_tool_button_new(NULL, NULL);
 516         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 517         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 518         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 519         gtk_widget_show_all(dm.win);
 520
 521         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 522                          G_CALLBACK(changed_download_progress), tb);
 523
 524         downloads++;
 525         g_signal_connect(G_OBJECT(download), "finished",
 526                          G_CALLBACK(download_handle_finished), NULL);
 527
 528         g_object_ref(download);
 529         g_signal_connect(G_OBJECT(tb), "clicked",
 530                          G_CALLBACK(downloadmanager_cancel), download);
 531     }
 532
 533     g_free(sug_clean);
 534     g_free(path);
 535     g_free(path2);
 536
 537     /* Propagate -- to whom it may concern. */
 538     return FALSE;
 539 }
 540
 541 void
 542 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 543 {
 544     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 545
 546     webkit_download_cancel(download);
 547     g_object_unref(download);
 548
 549     gtk_widget_destroy(GTK_WIDGET(tb));
 550 }
 551
 552 gboolean
 553 downloadmanager_delete(GtkWidget *obj, gpointer data)
 554 {
 555     if (!quit_if_nothing_active())
 556         gtk_widget_hide(dm.win);
 557
 558     return TRUE;
 559 }
 560
 561 void
 562 downloadmanager_setup(void)
 563 {
 564     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 565     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 566     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 567     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 568     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 569                      G_CALLBACK(downloadmanager_delete), NULL);
 570     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 571                      G_CALLBACK(key_downloadmanager), NULL);
 572
 573     dm.toolbar = gtk_toolbar_new();
 574     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 575                                    GTK_ORIENTATION_VERTICAL);
 576     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 577     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 578
 579     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 580     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 581                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 582     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 583
 584     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 585 }
 586
 587 gchar *
 588 ensure_uri_scheme(const gchar *t)
 589 {
 590     gchar *f, *fabs;
 591
 592     f = g_ascii_strdown(t, -1);
 593     if (!g_str_has_prefix(f, "http:") &&
 594         !g_str_has_prefix(f, "https:") &&
 595         !g_str_has_prefix(f, "file:") &&
 596         !g_str_has_prefix(f, "about:") &&
 597         !g_str_has_prefix(f, "data:"))
 598     {
 599         g_free(f);
 600         fabs = realpath(t, NULL);
 601         if (fabs != NULL)
 602         {
 603             f = g_strdup_printf("file://%s", fabs);
 604             free(fabs);
 605         }
 606         else
 607             f = g_strdup_printf("http://%s", t);
 608         return f;
 609     }
 610     else
 611         return g_strdup(t);
 612 }
 613
 614 void
 615 external_handler_run(GSimpleAction *simple, GVariant *param, gpointer data)
 616 {
 617     struct Client *c = (struct Client *)data;
 618     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 619     GPid pid;
 620     GError *err = NULL;
 621
 622     (void)simple;
 623     (void)param;
 624
 625     argv[2] = c->external_handler_uri;
 626     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 627                        &pid, &err))
 628     {
 629         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 630                 err->message);
 631         g_error_free(err);
 632     }
 633     else
 634         g_spawn_close_pid(pid);
 635 }
 636
 637 void
 638 grab_environment_configuration(void)
 639 {
 640     const gchar *e;
 641
 642     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 643     if (e != NULL)
 644         accepted_language[0] = g_strdup(e);
 645
 646     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 647     if (e != NULL)
 648         download_dir = g_strdup(e);
 649
 650     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_CONSOLE_TO_STDOUT");
 651     if (e != NULL)
 652         enable_console_to_stdout = TRUE;
 653
 654     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 655     if (e != NULL)
 656         enable_webgl = TRUE;
 657
 658     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 659     if (e != NULL)
 660         fifo_suffix = g_strdup(e);
 661
 662     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 663     if (e != NULL)
 664         history_file = g_strdup(e);
 665
 666     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 667     if (e != NULL)
 668         home_uri = g_strdup(e);
 669
 670     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 671     if (e != NULL)
 672         user_agent = g_strdup(e);
 673
 674     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 675     if (e != NULL)
 676         global_zoom = atof(e);
 677 }
 678
 679 void
 680 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data)
 681 {
 682     struct Client *c = (struct Client *)data;
 683     WebKitJavascriptResult *js_result;
 684     JSCValue *value;
 685     JSCException *exception;
 686     GError *err = NULL;
 687     gchar *str_value;
 688
 689     g_free(c->feed_html);
 690     c->feed_html = NULL;
 691
 692     /* This was taken almost verbatim from the example in WebKit's
 693      * documentation:
 694      *
 695      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html#webkit-web-view-run-javascript-finish */
 696
 697     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 698                                                       result, &err);
 699     if (!js_result)
 700     {
 701         fprintf(stderr, __NAME__": Error running javascript: %s\n", err->message);
 702         g_error_free(err);
 703         return;
 704     }
 705
 706     value = webkit_javascript_result_get_js_value(js_result);
 707     if (jsc_value_is_string(value))
 708     {
 709         str_value = jsc_value_to_string(value);
 710         exception = jsc_context_get_exception(jsc_value_get_context(value));
 711         if (exception != NULL)
 712         {
 713             fprintf(stderr, __NAME__": Error running javascript: %s\n",
 714                     jsc_exception_get_message(exception));
 715         }
 716         else
 717             c->feed_html = str_value;
 718
 719         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 720                                           GTK_ENTRY_ICON_PRIMARY,
 721                                           "application-rss+xml-symbolic");
 722         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 723                                        GTK_ENTRY_ICON_PRIMARY,
 724                                        TRUE);
 725     }
 726     else
 727     {
 728         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 729                                           GTK_ENTRY_ICON_PRIMARY,
 730                                           NULL);
 731     }
 732
 733     webkit_javascript_result_unref(js_result);
 734 }
 735
 736 void
 737 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 738                gpointer data)
 739 {
 740     struct Client *c = (struct Client *)data;
 741
 742     if (!gtk_widget_is_focus(c->location))
 743     {
 744         if (webkit_hit_test_result_context_is_link(ht))
 745         {
 746             gtk_entry_set_text(GTK_ENTRY(c->location),
 747                                webkit_hit_test_result_get_link_uri(ht));
 748
 749             if (c->hover_uri != NULL)
 750                 g_free(c->hover_uri);
 751             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 752         }
 753         else
 754         {
 755             gtk_entry_set_text(GTK_ENTRY(c->location),
 756                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 757
 758             if (c->hover_uri != NULL)
 759                 g_free(c->hover_uri);
 760             c->hover_uri = NULL;
 761         }
 762     }
 763 }
 764
 765 void
 766 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 767               gpointer data)
 768 {
 769     struct Client *c = (struct Client *)data;
 770     gchar *d;
 771     gchar *data_template =
 772         "data:text/html,"
 773         "<!DOCTYPE html>"
 774         "<html>"
 775         "    <head>"
 776         "        <meta charset=\"UTF-8\">"
 777         "        <title>Feeds</title>"
 778         "    </head>"
 779         "    <body>"
 780         "        <p>Feeds found on this page:</p>"
 781         "        <ul>"
 782         "        %s"
 783         "        </ul>"
 784         "    </body>"
 785         "</html>";
 786
 787     if (c->feed_html != NULL)
 788     {
 789         /* What we're actually trying to do is show a simple HTML page
 790          * that lists all the feeds on the current page. The function
 791          * webkit_web_view_load_html() looks like the proper way to do
 792          * that. Sad thing is, it doesn't create a history entry, but
 793          * instead simply replaces the content of the current page. This
 794          * is not what we want.
 795          *
 796          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 797          * mechanism to show my custom HTML snippet *and* create a
 798          * history entry.
 799          *
 800          * [0]: https://tools.ietf.org/html/rfc2397
 801          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 802         d = g_strdup_printf(data_template, c->feed_html);
 803         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 804         g_free(d);
 805     }
 806 }
 807
 808 gboolean
 809 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 810 {
 811     struct Client *c = (struct Client *)data;
 812     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 813     gchar *f;
 814
 815     if (event->type == GDK_KEY_PRESS)
 816     {
 817         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 818         {
 819             switch (((GdkEventKey *)event)->keyval)
 820             {
 821                 case GDK_KEY_q:  /* close window (left hand) */
 822                     gtk_widget_destroy(c->win);
 823                     return TRUE;
 824                 case GDK_KEY_w:  /* home (left hand) */
 825                     f = ensure_uri_scheme(home_uri);
 826                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 827                     g_free(f);
 828                     return TRUE;
 829                 case GDK_KEY_e:  /* new tab (left hand) */
 830                     f = ensure_uri_scheme(home_uri);
 831                     client_new(f, NULL, TRUE);
 832                     g_free(f);
 833                     return TRUE;
 834                 case GDK_KEY_r:  /* reload (left hand) */
 835                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 836                                                         c->web_view));
 837                     return TRUE;
 838                 case GDK_KEY_d:  /* download manager (left hand) */
 839                     gtk_widget_show_all(dm.win);
 840                     return TRUE;
 841                 case GDK_KEY_2:  /* search forward (left hand) */
 842                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 843                     search(c, 1);
 844                     return TRUE;
 845                 case GDK_KEY_3:  /* search backward (left hand) */
 846                     search(c, -1);
 847                     return TRUE;
 848                 case GDK_KEY_l:  /* location (BOTH hands) */
 849                     gtk_widget_grab_focus(c->location);
 850                     return TRUE;
 851                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 852                     gtk_widget_grab_focus(c->location);
 853                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 854                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 855                     return TRUE;
 856                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 857                     trust_user_certs(wc);
 858                     return TRUE;
 859                 case GDK_KEY_x:  /* launch external handler (left hand) */
 860                     if (c->external_handler_uri != NULL)
 861                         g_free(c->external_handler_uri);
 862                     c->external_handler_uri = g_strdup(
 863                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 864                     external_handler_run(NULL, NULL, c);
 865                     return TRUE;
 866             }
 867         }
 868         /* navigate backward (left hand) */
 869         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 870         {
 871             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 872             return TRUE;
 873         }
 874         /* navigate forward (left hand) */
 875         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 876         {
 877             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 878             return TRUE;
 879         }
 880     }
 881
 882     return FALSE;
 883 }
 884
 885 gboolean
 886 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 887 {
 888     if (event->type == GDK_KEY_PRESS)
 889     {
 890         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 891         {
 892             switch (((GdkEventKey *)event)->keyval)
 893             {
 894                 case GDK_KEY_d:  /* close window (left hand) */
 895                 case GDK_KEY_q:
 896                     downloadmanager_delete(dm.win, NULL);
 897                     return TRUE;
 898             }
 899         }
 900     }
 901
 902     return FALSE;
 903 }
 904
 905 gboolean
 906 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 907 {
 908     struct Client *c = (struct Client *)data;
 909     const gchar *t;
 910     gchar *f;
 911
 912     if (key_common(widget, event, data))
 913         return TRUE;
 914
 915     if (event->type == GDK_KEY_PRESS)
 916     {
 917         switch (((GdkEventKey *)event)->keyval)
 918         {
 919             case GDK_KEY_KP_Enter:
 920             case GDK_KEY_Return:
 921                 gtk_widget_grab_focus(c->web_view);
 922                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 923                 if (t != NULL && t[0] == ':' && t[1] == '/')
 924                 {
 925                     if (search_text != NULL)
 926                         g_free(search_text);
 927                     search_text = g_strdup(t + 2);
 928                     search(c, 0);
 929                 }
 930                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 931                 {
 932                     f = ensure_uri_scheme(t);
 933                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 934                     g_free(f);
 935                 }
 936                 return TRUE;
 937             case GDK_KEY_Escape:
 938                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 939                 gtk_entry_set_text(GTK_ENTRY(c->location),
 940                                    (t == NULL ? __NAME__ : t));
 941                 return TRUE;
 942         }
 943     }
 944
 945     return FALSE;
 946 }
 947
 948 gboolean
 949 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 950 {
 951     struct Client *c = (struct Client *)data;
 952     gdouble dx, dy;
 953     gfloat z;
 954
 955     if (key_common(widget, event, data))
 956         return TRUE;
 957
 958     if (event->type == GDK_KEY_PRESS)
 959     {
 960         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 961         {
 962             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 963             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 964         }
 965     }
 966     else if (event->type == GDK_BUTTON_RELEASE)
 967     {
 968         switch (((GdkEventButton *)event)->button)
 969         {
 970             case 2:
 971                 if (c->hover_uri != NULL)
 972                 {
 973                     client_new(c->hover_uri, NULL, TRUE);
 974                     return TRUE;
 975                 }
 976                 break;
 977             case 8:
 978                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 979                 return TRUE;
 980             case 9:
 981                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 982                 return TRUE;
 983         }
 984     }
 985     else if (event->type == GDK_SCROLL)
 986     {
 987         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 988             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 989         {
 990             gdk_event_get_scroll_deltas(event, &dx, &dy);
 991             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 992             z += -dy * 0.1;
 993             z = dx != 0 ? global_zoom : z;
 994             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
 995             return TRUE;
 996         }
 997     }
 998
 999     return FALSE;
1000 }
1001
1002 void
1003 keywords_load(void)
1004 {
1005     GError *err = NULL;
1006     GIOChannel *channel = NULL;
1007     gchar *path = NULL, *buf = NULL;
1008     gchar **tokens = NULL;
1009
1010     keywords = g_hash_table_new(g_str_hash, g_str_equal);
1011
1012     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
1013                             NULL);
1014     channel = g_io_channel_new_file(path, "r", &err);
1015     if (channel != NULL)
1016     {
1017         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
1018                == G_IO_STATUS_NORMAL)
1019         {
1020             g_strstrip(buf);
1021             if (buf[0] != '#')
1022             {
1023                 tokens = g_strsplit(buf, " ", 2);
1024                 if (tokens[0] != NULL && tokens[1] != NULL)
1025                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
1026                                         g_strdup(tokens[1]));
1027                 g_strfreev(tokens);
1028             }
1029             g_free(buf);
1030         }
1031         g_io_channel_shutdown(channel, FALSE, NULL);
1032     }
1033     g_free(path);
1034 }
1035
1036 gboolean
1037 keywords_try_search(WebKitWebView *web_view, const gchar *t)
1038 {
1039     gboolean ret = FALSE;
1040     gchar **tokens = NULL;
1041     gchar *val = NULL, *escaped = NULL, *uri = NULL;
1042
1043     tokens = g_strsplit(t, " ", 2);
1044     if (tokens[0] != NULL && tokens[1] != NULL)
1045     {
1046         val = g_hash_table_lookup(keywords, tokens[0]);
1047         if (val != NULL)
1048         {
1049             escaped = g_uri_escape_string(tokens[1], NULL, TRUE);
1050             uri = g_strdup_printf((gchar *)val, escaped);
1051             webkit_web_view_load_uri(web_view, uri);
1052             g_free(uri);
1053             g_free(escaped);
1054             ret = TRUE;
1055         }
1056     }
1057     g_strfreev(tokens);
1058
1059     return ret;
1060 }
1061
1062 gboolean
1063 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
1064               WebKitHitTestResult *ht, gpointer data)
1065 {
1066     struct Client *c = (struct Client *)data;
1067     GSimpleAction *action = NULL;
1068     WebKitContextMenuItem *mi = NULL;
1069     const gchar *uri = NULL;
1070
1071     (void)ev;
1072
1073     if (webkit_hit_test_result_context_is_link(ht))
1074         uri = webkit_hit_test_result_get_link_uri(ht);
1075     else if (webkit_hit_test_result_context_is_image(ht))
1076         uri = webkit_hit_test_result_get_image_uri(ht);
1077     else if (webkit_hit_test_result_context_is_media(ht))
1078         uri = webkit_hit_test_result_get_media_uri(ht);
1079
1080     if (uri != NULL)
1081     {
1082         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
1083
1084         if (c->external_handler_uri != NULL)
1085             g_free(c->external_handler_uri);
1086         c->external_handler_uri = g_strdup(uri);
1087         action = g_simple_action_new("external_handler", NULL);
1088         g_signal_connect(G_OBJECT(action), "activate",
1089                          G_CALLBACK(external_handler_run), data);
1090         mi = webkit_context_menu_item_new_from_gaction(G_ACTION(action),
1091                                                        "Open with external handler",
1092                                                        NULL);
1093         webkit_context_menu_append(menu, mi);
1094         g_object_unref(action);
1095     }
1096
1097     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
1098     return FALSE;
1099 }
1100
1101 gboolean
1102 quit_if_nothing_active(void)
1103 {
1104     if (clients == 0)
1105     {
1106         if (downloads == 0)
1107         {
1108             gtk_main_quit();
1109             return TRUE;
1110         }
1111         else
1112             gtk_widget_show_all(dm.win);
1113     }
1114
1115     return FALSE;
1116 }
1117
1118 gboolean
1119 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
1120 {
1121     gchar *uri = NULL;
1122
1123     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1124     if (uri)
1125     {
1126         g_strstrip(uri);
1127         client_new(uri, NULL, TRUE);
1128         g_free(uri);
1129     }
1130     return TRUE;
1131 }
1132
1133 void
1134 run_user_scripts(WebKitWebView *web_view)
1135 {
1136     gchar *base = NULL, *path = NULL, *contents = NULL;
1137     const gchar *entry = NULL;
1138     GDir *scriptdir = NULL;
1139
1140     base = g_build_filename(g_get_user_config_dir(), __NAME__, "scripts", NULL);
1141     scriptdir = g_dir_open(base, 0, NULL);
1142     if (scriptdir != NULL)
1143     {
1144         while ((entry = g_dir_read_name(scriptdir)) != NULL)
1145         {
1146             path = g_build_filename(base, entry, NULL);
1147             if (g_str_has_suffix(path, ".js"))
1148             {
1149                 if (g_file_get_contents(path, &contents, NULL, NULL))
1150                 {
1151                     webkit_web_view_run_javascript(web_view, contents, NULL, NULL, NULL);
1152                     g_free(contents);
1153                 }
1154             }
1155             g_free(path);
1156         }
1157         g_dir_close(scriptdir);
1158     }
1159
1160     g_free(base);
1161 }
1162
1163 void
1164 search(gpointer data, gint direction)
1165 {
1166     struct Client *c = (struct Client *)data;
1167     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
1168     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
1169
1170     if (search_text == NULL)
1171         return;
1172
1173     switch (direction)
1174     {
1175         case 0:
1176             webkit_find_controller_search(fc, search_text,
1177                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
1178                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
1179                                           G_MAXUINT);
1180             break;
1181         case 1:
1182             webkit_find_controller_search_next(fc);
1183             break;
1184         case -1:
1185             webkit_find_controller_search_previous(fc);
1186             break;
1187     }
1188 }
1189
1190 void
1191 show_web_view(WebKitWebView *web_view, gpointer data)
1192 {
1193     struct Client *c = (struct Client *)data;
1194
1195     (void)web_view;
1196
1197     gtk_widget_grab_focus(c->web_view);
1198     gtk_widget_show_all(c->win);
1199 }
1200
1201 Window
1202 tabbed_launch(void)
1203 {
1204     gint tabbed_stdout;
1205     GIOChannel *tabbed_stdout_channel;
1206     GError *err = NULL;
1207     gchar *output = NULL;
1208     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1209     Window plug_into;
1210
1211     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1212                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1213                                   &err))
1214     {
1215         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1216         g_error_free(err);
1217         return 0;
1218     }
1219
1220     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1221     if (tabbed_stdout_channel == NULL)
1222     {
1223         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1224         return 0;
1225     }
1226     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1227     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1228     if (output == NULL)
1229     {
1230         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1231         return 0;
1232     }
1233     g_strstrip(output);
1234     plug_into = strtol(output, NULL, 16);
1235     g_free(output);
1236     if (plug_into == 0)
1237         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1238     return plug_into;
1239 }
1240
1241 void
1242 trust_user_certs(WebKitWebContext *wc)
1243 {
1244     GTlsCertificate *cert;
1245     const gchar *basedir, *file, *absfile;
1246     GDir *dir;
1247
1248     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1249     dir = g_dir_open(basedir, 0, NULL);
1250     if (dir != NULL)
1251     {
1252         file = g_dir_read_name(dir);
1253         while (file != NULL)
1254         {
1255             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1256                                        file, NULL);
1257             cert = g_tls_certificate_new_from_file(absfile, NULL);
1258             if (cert == NULL)
1259                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1260             else
1261                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1262             file = g_dir_read_name(dir);
1263         }
1264         g_dir_close(dir);
1265     }
1266 }
1267
1268
1269 int
1270 main(int argc, char **argv)
1271 {
1272     gchar *c;
1273     int opt, i;
1274
1275     gtk_init(&argc, &argv);
1276     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1277         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1278
1279     grab_environment_configuration();
1280
1281     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1282     {
1283         switch (opt)
1284         {
1285             case 'e':
1286                 embed = atol(optarg);
1287                 tabbed_automagic = FALSE;
1288                 break;
1289             case 'C':
1290                 cooperative_instances = FALSE;
1291                 break;
1292             case 'T':
1293                 tabbed_automagic = FALSE;
1294                 break;
1295             default:
1296                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1297                 exit(EXIT_FAILURE);
1298         }
1299     }
1300
1301     keywords_load();
1302     if (cooperative_instances)
1303         cooperation_setup();
1304     downloadmanager_setup();
1305
1306     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1307         embed = tabbed_launch();
1308
1309     if (!cooperative_instances || cooperative_alone)
1310     {
1311         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1312                              NULL);
1313         webkit_web_context_set_web_extensions_directory(
1314             webkit_web_context_get_default(), c
1315         );
1316     }
1317
1318     if (optind >= argc)
1319         client_new(home_uri, NULL, TRUE);
1320     else
1321     {
1322         for (i = optind; i < argc; i++)
1323             client_new(argv[i], NULL, TRUE);
1324     }
1325
1326     if (!cooperative_instances || cooperative_alone)
1327         gtk_main();
1328     exit(EXIT_SUCCESS);
1329 }