src/browser.c

   1 #include <fcntl.h>
   2 #include <sys/stat.h>
   3 #include <webkit2/webkit2.h>
   4
   5 #include "downloads.h"
   6
   7 void client_destroy(GtkWidget *, gpointer);
   8 WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean, gboolean);
   9 WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  10                                   gpointer);
  11 void cooperation_setup(void);
  12 void changed_load_progress(GObject *, GParamSpec *, gpointer);
  13 void changed_favicon(GObject *, GParamSpec *, gpointer);
  14 void changed_title(GObject *, GParamSpec *, gpointer);
  15 void changed_uri(GObject *, GParamSpec *, gpointer);
  16 gboolean crashed_web_view(WebKitWebView *, gpointer);
  17 gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  18                        WebKitPolicyDecisionType, gpointer);
  19 gchar *ensure_uri_scheme(const gchar *);
  20 void grab_environment_configuration(void);
  21 void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  22 void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  23 void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  24 void init_default_web_context(void);
  25 gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  26 gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  27 gboolean key_tablabel(GtkWidget *, GdkEvent *, gpointer);
  28 gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  29 void mainwindow_setup(void);
  30 void mainwindow_title(gint);
  31 void notebook_switch_page(GtkNotebook *, GtkWidget *, guint, gpointer);
  32 gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  33 void run_user_scripts(WebKitWebView *);
  34 void search(gpointer, gint);
  35 void show_web_view(WebKitWebView *, gpointer);
  36 void trust_user_certs(WebKitWebContext *);
  37 GKeyFile *get_ini(void);
  38 GKeyFile *config;
  39
  40 struct Client {
  41     GtkWidget *imgbutton;
  42     GtkWidget *jsbutton;
  43     GtkWidget *location;
  44     GtkWidget *tabicon;
  45     GtkWidget *tablabel;
  46     GtkWidget *vbox;
  47     GtkWidget *web_view;
  48     WebKitSettings *settings;
  49     gboolean focus_new_tab;
  50     gchar *external_handler_uri;
  51     gchar *feed_html;
  52     gchar *hover_uri;
  53 };
  54
  55 struct Configuration {
  56     WebKitCookieAcceptPolicy cookie_policy;
  57     const gchar *accepted_language[2];
  58     gboolean cooperative_alone;
  59     gboolean cooperative_instances;
  60     gboolean enable_console_to_stdout;
  61     gboolean images_disabled;
  62     gboolean javascript_disabled;
  63     gboolean private;
  64     gboolean spellcheck_disabled;
  65     gchar *default_uri;
  66     gchar *download_dir;
  67     gchar *fifo_suffix;
  68     gchar *history_file;
  69     gchar *home_uri;
  70     gchar *search_engine;
  71     gchar *spellcheck_language;
  72     gchar *user_agent;
  73     gdouble global_zoom;
  74     gint scroll_lines;
  75     gint tab_width_chars;
  76 } cfg;
  77
  78 struct MainWindow {
  79     GtkWidget *win;
  80     GtkWidget *notebook;
  81 } mw;
  82
  83 gint clients = 0;
  84 struct Client **client_arr;
  85
  86 int cooperative_pipe_fp = 0;
  87 gchar *search_text;
  88
  89 void
  90 togglejs(GtkButton *jsbutton, gpointer data) {
  91     struct Client *c = (struct Client *)data;
  92     webkit_settings_set_enable_javascript(
  93         c->settings, !webkit_settings_get_enable_javascript(c->settings));
  94     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
  95 }
  96
  97 void
  98 toggleimg(GtkButton *imgbutton, gpointer data) {
  99     struct Client *c = (struct Client *)data;
 100     webkit_settings_set_auto_load_images(
 101         c->settings, !webkit_settings_get_auto_load_images(c->settings));
 102     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
 103 }
 104
 105 void
 106 client_destroy(GtkWidget *widget, gpointer data) {
 107     struct Client *c = (struct Client *)data;
 108     gint idx;
 109
 110     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 111                                          changed_load_progress, c);
 112
 113     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 114     if (idx == -1)
 115         fprintf(stderr, __NAME__ ": Tab index was -1, bamboozled\n");
 116     else
 117         gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 118
 119     free(c);
 120     clients--;
 121
 122     quit_if_nothing_active();
 123 }
 124
 125 void
 126 set_uri(const char *uri, struct Client *c) {
 127     if (!gtk_widget_is_focus(c->location)) {
 128         gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 129     }
 130 }
 131
 132 WebKitWebView *
 133 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show,
 134            gboolean focus_tab) {
 135     struct Client *c;
 136     gchar *f;
 137     GtkWidget *evbox, *tabbox;
 138
 139     if (uri != NULL && cfg.cooperative_instances && !cfg.cooperative_alone) {
 140         f = ensure_uri_scheme(uri);
 141         write(cooperative_pipe_fp, f, strlen(f));
 142         write(cooperative_pipe_fp, "\n", 1);
 143         g_free(f);
 144         return NULL;
 145     }
 146
 147     c = calloc(1, sizeof(struct Client));
 148     if (!c) {
 149         fprintf(stderr, __NAME__ ": fatal: calloc failed\n");
 150         exit(EXIT_FAILURE);
 151     }
 152
 153     c->focus_new_tab = focus_tab;
 154
 155     if (related_wv == NULL)
 156         c->web_view = webkit_web_view_new();
 157     else
 158         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 159
 160     c->settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view));
 161
 162     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 163                                    cfg.global_zoom);
 164     webkit_settings_set_enable_javascript(c->settings,
 165                                           !cfg.javascript_disabled);
 166     webkit_settings_set_auto_load_images(c->settings, !cfg.images_disabled);
 167     g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 168                      G_CALLBACK(changed_favicon), c);
 169     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 170                      G_CALLBACK(changed_title), c);
 171     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 172                      G_CALLBACK(changed_uri), c);
 173     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 174                      G_CALLBACK(changed_load_progress), c);
 175     g_signal_connect(G_OBJECT(c->web_view), "create",
 176                      G_CALLBACK(client_new_request), NULL);
 177     g_signal_connect(G_OBJECT(c->web_view), "close", G_CALLBACK(client_destroy),
 178                      c);
 179     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 180                      G_CALLBACK(decide_policy), NULL);
 181     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 182                      G_CALLBACK(key_web_view), c);
 183     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 184                      G_CALLBACK(key_web_view), c);
 185     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 186                      G_CALLBACK(key_web_view), c);
 187     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 188                      G_CALLBACK(hover_web_view), c);
 189     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 190                      G_CALLBACK(crashed_web_view), c);
 191
 192     if (cfg.user_agent != NULL) {
 193         g_object_set(c->settings, "user-agent", cfg.user_agent, NULL);
 194     }
 195
 196     if (cfg.enable_console_to_stdout)
 197         webkit_settings_set_enable_write_console_messages_to_stdout(c->settings,
 198                                                                     TRUE);
 199
 200     webkit_settings_set_enable_developer_extras(c->settings, TRUE);
 201
 202     GtkWidget *locbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 203
 204     c->jsbutton = gtk_toggle_button_new_with_label("JS");
 205     gtk_widget_set_tooltip_text(c->jsbutton, "Toggle JavaScript execution");
 206     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
 207                                  !cfg.javascript_disabled);
 208     g_signal_connect(G_OBJECT(c->jsbutton), "toggled", G_CALLBACK(togglejs), c);
 209
 210     c->imgbutton = gtk_toggle_button_new_with_label("IMG");
 211     gtk_widget_set_tooltip_text(c->imgbutton, "Toggle image loading");
 212     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
 213                                  !cfg.images_disabled);
 214     g_signal_connect(G_OBJECT(c->imgbutton), "toggled", G_CALLBACK(toggleimg),
 215                      c);
 216
 217     c->location = gtk_entry_new();
 218     gtk_box_pack_start(GTK_BOX(locbox), c->location, TRUE, TRUE, 0);
 219
 220     if (cfg.private) {
 221         GtkWidget *privindicator = gtk_label_new("Private mode");
 222         gtk_widget_set_tooltip_text(
 223             privindicator, "You are in private mode. No history, caches, or "
 224                            "cookies will be saved beyond this session.");
 225         gtk_box_pack_end(GTK_BOX(locbox), privindicator, FALSE, FALSE, 5);
 226     }
 227
 228     gtk_box_pack_start(GTK_BOX(locbox), c->jsbutton, FALSE, FALSE, 5);
 229     gtk_box_pack_start(GTK_BOX(locbox), c->imgbutton, FALSE, FALSE, 0);
 230
 231     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 232                      G_CALLBACK(key_location), c);
 233     g_signal_connect(G_OBJECT(c->location), "icon-release",
 234                      G_CALLBACK(icon_location), c);
 235     /* XXX This is a workaround. Setting this to NULL (which is done in
 236      * grab_feeds_finished() if no feed has been detected) adds a little
 237      * padding left of the text. Not sure why. The point of this call
 238      * right here is to have that padding right from the start. This
 239      * avoids a graphical artifact. */
 240     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 241                                       GTK_ENTRY_ICON_SECONDARY, NULL);
 242
 243     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 244     gtk_box_pack_start(GTK_BOX(c->vbox), locbox, FALSE, FALSE, 0);
 245     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 246     gtk_container_set_focus_child(GTK_CONTAINER(c->vbox), c->web_view);
 247
 248     c->tabicon =
 249         gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_SMALL_TOOLBAR);
 250
 251     c->tablabel = gtk_label_new(__NAME__);
 252     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 253     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), cfg.tab_width_chars);
 254     gtk_widget_set_has_tooltip(c->tablabel, TRUE);
 255
 256     /* XXX I don't own a HiDPI screen, so I don't know if scale_factor
 257      * does the right thing. */
 258     tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,
 259                          5 * gtk_widget_get_scale_factor(mw.win));
 260     gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 261     gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 262
 263     evbox = gtk_event_box_new();
 264     gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 265     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 266                      G_CALLBACK(key_tablabel), c);
 267
 268     gtk_widget_add_events(evbox, GDK_SCROLL_MASK);
 269     g_signal_connect(G_OBJECT(evbox), "scroll-event", G_CALLBACK(key_tablabel),
 270                      c);
 271
 272     // For easy access, store a reference to our label.
 273     g_object_set_data(G_OBJECT(evbox), "chorizo-tab-label", c->tablabel);
 274
 275     /* This only shows the event box and the label inside, nothing else.
 276      * Needed because the evbox/label is "internal" to the notebook and
 277      * not part of the normal "widget tree" (IIUC). */
 278     gtk_widget_show_all(evbox);
 279
 280     int page = gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)) + 1;
 281     gtk_notebook_insert_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox, page);
 282     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 283
 284     if (show)
 285         show_web_view(NULL, c);
 286     else
 287         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 288                          G_CALLBACK(show_web_view), c);
 289
 290     if (uri != NULL) {
 291         f = ensure_uri_scheme(uri);
 292         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 293         g_free(f);
 294     }
 295
 296     set_uri(uri, c);
 297
 298     clients++;
 299     client_arr = realloc(client_arr, (clients + 1) * sizeof(client_arr[0]));
 300     client_arr[clients] = c;
 301
 302     return WEBKIT_WEB_VIEW(c->web_view);
 303 }
 304
 305 WebKitWebView *
 306 client_new_request(WebKitWebView *web_view,
 307                    WebKitNavigationAction *navigation_action, gpointer data) {
 308     return client_new(NULL, web_view, FALSE, FALSE);
 309 }
 310
 311 void
 312 cooperation_setup(void) {
 313     GIOChannel *towatch;
 314     gchar *fifofilename, *fifopath;
 315
 316     gchar *priv = (cfg.private) ? "-private" : "";
 317     fifofilename =
 318         g_strdup_printf("%s%s%s-%s", __NAME__, priv, ".fifo", cfg.fifo_suffix);
 319     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 320     g_free(fifofilename);
 321
 322     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 323         mkfifo(fifopath, 0600);
 324
 325     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 326     if (!cooperative_pipe_fp) {
 327         fprintf(stderr, __NAME__ ": Can't open FIFO at all.\n");
 328     } else {
 329         if (write(cooperative_pipe_fp, "", 0) == -1) {
 330             /* Could not do an empty write to the FIFO which means there's
 331              * no one listening. */
 332             close(cooperative_pipe_fp);
 333             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 334             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 335         } else {
 336             cfg.cooperative_alone = FALSE;
 337         }
 338     }
 339
 340     g_free(fifopath);
 341 }
 342
 343 void
 344 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data) {
 345     struct Client *c = (struct Client *)data;
 346     gdouble p;
 347     gchar *grab_feeds =
 348         "a = document.querySelectorAll('"
 349         "    html > head > "
 350         "link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 351         "    html > head > "
 352         "link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 353         "');"
 354         "if (a.length == 0)"
 355         "    null;"
 356         "else {"
 357         "    out = '';"
 358         "    for (i = 0; i < a.length; i++) {"
 359         "        url = encodeURIComponent(a[i].href);"
 360         "        if ('title' in a[i] && a[i].title != '')"
 361         "            title = encodeURIComponent(a[i].title);"
 362         "        else"
 363         "            title = url;"
 364         "        out += '<li><a href=\"' + url + '\">' + title + "
 365         "'</a></li>';"
 366         "    }"
 367         "    out;"
 368         "}";
 369
 370     p = webkit_web_view_get_estimated_load_progress(
 371         WEBKIT_WEB_VIEW(c->web_view));
 372     if (p == 1) {
 373         p = 0;
 374
 375         /* The page has loaded fully. We now run the short JavaScript
 376          * snippet above that operates on the DOM. It tries to grab all
 377          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 378          * references. */
 379         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view), grab_feeds,
 380                                        NULL, grab_feeds_finished, c);
 381
 382         run_user_scripts(WEBKIT_WEB_VIEW(c->web_view));
 383     }
 384     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 385 }
 386
 387 void
 388 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data) {
 389     struct Client *c = (struct Client *)data;
 390     cairo_surface_t *f;
 391     int w, h, w_should, h_should;
 392     GdkPixbuf *pb, *pb_scaled;
 393
 394     f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 395     if (f == NULL) {
 396         gtk_image_set_from_icon_name(GTK_IMAGE(c->tabicon), "text-html",
 397                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
 398     } else {
 399         w = cairo_image_surface_get_width(f);
 400         h = cairo_image_surface_get_height(f);
 401         pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 402         if (pb != NULL) {
 403             w_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 404             h_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 405             pb_scaled = gdk_pixbuf_scale_simple(pb, w_should, h_should,
 406                                                 GDK_INTERP_BILINEAR);
 407             gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 408
 409             g_object_unref(pb_scaled);
 410             g_object_unref(pb);
 411         }
 412     }
 413 }
 414
 415 void
 416 changed_title(GObject *obj, GParamSpec *pspec, gpointer data) {
 417     const gchar *t, *u;
 418     struct Client *c = (struct Client *)data;
 419
 420     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 421     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 422
 423     u = u == NULL ? __NAME__ : u;
 424     u = u[0] == 0 ? __NAME__ : u;
 425
 426     t = t == NULL ? u : t;
 427     t = t[0] == 0 ? u : t;
 428
 429     gchar *name = malloc(strlen(t) + 4);
 430     gboolean mute = webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 431     gchar *muted = (mute) ? "[m] " : "";
 432     sprintf(name, "%s%s", muted, t);
 433     gtk_label_set_text(GTK_LABEL(c->tablabel), name);
 434     g_free(name);
 435
 436     gtk_widget_set_tooltip_text(c->tablabel, t);
 437     mainwindow_title(gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)));
 438 }
 439
 440 void
 441 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data) {
 442     const gchar *t;
 443     struct Client *c = (struct Client *)data;
 444     FILE *fp;
 445
 446     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 447
 448     /* When a web process crashes, we get a "notify::uri" signal, but we
 449      * can no longer read a meaningful URI. It's just an empty string
 450      * now. Not updating the location bar in this scenario is important,
 451      * because we would override the "WEB PROCESS CRASHED" message. */
 452     if (t != NULL && strlen(t) > 0) {
 453         set_uri(t, c);
 454
 455         if (cfg.history_file != NULL && !cfg.private) {
 456             fp = fopen(cfg.history_file, "a");
 457             if (fp != NULL) {
 458                 fprintf(fp, "%s\n", t);
 459                 fclose(fp);
 460             } else {
 461                 perror(__NAME__ ": Error opening history file");
 462             }
 463         }
 464     }
 465 }
 466
 467 gboolean
 468 crashed_web_view(WebKitWebView *web_view, gpointer data) {
 469     gchar *t;
 470     struct Client *c = (struct Client *)data;
 471
 472     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 473                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 474     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 475     g_free(t);
 476
 477     return TRUE;
 478 }
 479
 480 gboolean
 481 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 482               WebKitPolicyDecisionType type, gpointer data) {
 483     WebKitResponsePolicyDecision *r;
 484
 485     switch (type) {
 486     case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 487         r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 488         if (!webkit_response_policy_decision_is_mime_type_supported(r))
 489             webkit_policy_decision_download(decision);
 490         else
 491             webkit_policy_decision_use(decision);
 492         break;
 493     default:
 494         // Use whatever default there is.
 495         return FALSE;
 496     }
 497     return TRUE;
 498 }
 499
 500 gchar *
 501 ensure_uri_scheme(const gchar *t) {
 502     gchar *f, *fabs;
 503
 504     f = g_ascii_strdown(t, -1);
 505     if (!g_str_has_prefix(f, "http:") && !g_str_has_prefix(f, "https:") &&
 506         !g_str_has_prefix(f, "file:") && !g_str_has_prefix(f, "about:") &&
 507         !g_str_has_prefix(f, "data:") && !g_str_has_prefix(f, "webkit:")) {
 508         g_free(f);
 509         fabs = realpath(t, NULL);
 510         if (fabs != NULL) {
 511             f = g_strdup_printf("file://%s", fabs);
 512             free(fabs);
 513         } else {
 514             f = g_strdup_printf("http://%s", t);
 515         }
 516         return f;
 517     } else
 518         return g_strdup(t);
 519 }
 520
 521 void
 522 get_config(void) {
 523     cfg.accepted_language[0] = NULL;
 524     cfg.accepted_language[1] = NULL;
 525     cfg.cooperative_alone = TRUE;
 526     cfg.cooperative_instances = TRUE;
 527     cfg.fifo_suffix = "main";
 528
 529     const char *e = g_getenv(__NAME_UPPERCASE__ "_FIFO_SUFFIX");
 530     if (e != NULL)
 531         cfg.fifo_suffix = g_strdup(e);
 532
 533     char *xdg_down = getenv("XDG_DOWNLOAD_DIR");
 534     cfg.download_dir = (xdg_down) ? xdg_down : "/var/tmp";
 535
 536     config = get_ini();
 537     cfg.accepted_language[0] =
 538         g_key_file_get_string(config, "browser", "accepted_language", NULL);
 539     cfg.history_file =
 540         g_key_file_get_string(config, "browser", "history_file", NULL);
 541     cfg.home_uri = g_key_file_get_string(config, "browser", "homepage", NULL);
 542     cfg.home_uri = (cfg.home_uri) ? cfg.home_uri : "about:blank";
 543     cfg.enable_console_to_stdout =
 544         g_key_file_get_boolean(config, "browser", "console_to_stdout", NULL);
 545     cfg.user_agent =
 546         g_key_file_get_string(config, "browser", "user_agent", NULL);
 547     cfg.javascript_disabled =
 548         g_key_file_get_boolean(config, "browser", "javascript_disabled", NULL);
 549     cfg.images_disabled =
 550         g_key_file_get_boolean(config, "browser", "images_disabled", NULL);
 551     char *input_cookie_policy =
 552         g_key_file_get_string(config, "browser", "cookie_policy", NULL);
 553     cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY;
 554     if (input_cookie_policy) {
 555         if (strcmp(input_cookie_policy, "all") == 0) {
 556             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS;
 557         } else if (strcmp(input_cookie_policy, "none") == 0) {
 558             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NEVER;
 559         }
 560     }
 561
 562     cfg.default_uri = g_key_file_get_string(config, "ui", "default_uri", NULL);
 563     cfg.default_uri = (cfg.default_uri) ? cfg.default_uri : "https://";
 564     cfg.tab_width_chars =
 565         g_key_file_get_integer(config, "ui", "tab_width", NULL);
 566     cfg.tab_width_chars = (cfg.tab_width_chars) ? cfg.tab_width_chars : 20;
 567     cfg.global_zoom = g_key_file_get_double(config, "ui", "zoom_level", NULL);
 568     cfg.global_zoom = (cfg.global_zoom) ? cfg.global_zoom : 1.0;
 569     cfg.search_engine =
 570         g_key_file_get_string(config, "ui", "search_engine", NULL);
 571     cfg.search_engine =
 572         (cfg.search_engine) ? cfg.search_engine : "https://duckduckgo.com?q=";
 573     cfg.spellcheck_disabled =
 574         g_key_file_get_boolean(config, "ui", "spellcheck_disabled", NULL);
 575     cfg.spellcheck_language =
 576         g_key_file_get_string(config, "ui", "spellcheck_language", NULL);
 577     cfg.spellcheck_language =
 578         (cfg.spellcheck_language) ? cfg.spellcheck_language : "en_US";
 579     cfg.scroll_lines =
 580         g_key_file_get_integer(config, "ui", "scroll_lines", NULL);
 581     cfg.scroll_lines = (cfg.scroll_lines) ? cfg.scroll_lines : 3;
 582 }
 583
 584 void
 585 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data) {
 586     struct Client *c = (struct Client *)data;
 587     WebKitJavascriptResult *js_result;
 588     JSCValue *value;
 589     JSCException *exception;
 590     GError *err = NULL;
 591     gchar *str_value;
 592
 593     g_free(c->feed_html);
 594     c->feed_html = NULL;
 595
 596     /* This was taken almost verbatim from the example in WebKit's
 597      * documentation:
 598      *
 599      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html
 600      */
 601
 602     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 603                                                       result, &err);
 604     if (!js_result) {
 605         fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 606                 err->message);
 607         g_error_free(err);
 608         return;
 609     }
 610
 611     value = webkit_javascript_result_get_js_value(js_result);
 612     if (jsc_value_is_string(value)) {
 613         str_value = jsc_value_to_string(value);
 614         exception = jsc_context_get_exception(jsc_value_get_context(value));
 615         if (exception != NULL) {
 616             fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 617                     jsc_exception_get_message(exception));
 618         } else {
 619             c->feed_html = str_value;
 620         }
 621
 622         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 623                                           GTK_ENTRY_ICON_SECONDARY,
 624                                           "application-rss+xml-symbolic");
 625         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 626                                        GTK_ENTRY_ICON_PRIMARY, TRUE);
 627     } else {
 628         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 629                                           GTK_ENTRY_ICON_SECONDARY, NULL);
 630     }
 631
 632     webkit_javascript_result_unref(js_result);
 633 }
 634
 635 void
 636 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht,
 637                guint modifiers, gpointer data) {
 638     struct Client *c = (struct Client *)data;
 639     const char *to_show;
 640
 641     g_free(c->hover_uri);
 642
 643     if (webkit_hit_test_result_context_is_link(ht)) {
 644         to_show = webkit_hit_test_result_get_link_uri(ht);
 645         c->hover_uri = g_strdup(to_show);
 646     } else {
 647         to_show = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 648         c->hover_uri = NULL;
 649     }
 650
 651     if (!gtk_widget_is_focus(c->location))
 652         set_uri(to_show, c);
 653 }
 654
 655 void
 656 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 657               gpointer data) {
 658     struct Client *c = (struct Client *)data;
 659     gchar *d;
 660     gchar *data_template = "data:text/html,"
 661                            "<!DOCTYPE html>"
 662                            "<html>"
 663                            "    <head>"
 664                            "        <meta charset=\"UTF-8\">"
 665                            "        <title>Feeds</title>"
 666                            "    </head>"
 667                            "    <body>"
 668                            "        <p>Feeds found on this page:</p>"
 669                            "        <ul>"
 670                            "        %s"
 671                            "        </ul>"
 672                            "    </body>"
 673                            "</html>";
 674
 675     if (c->feed_html != NULL) {
 676         /* What we're actually trying to do is show a simple HTML page
 677          * that lists all the feeds on the current page. The function
 678          * webkit_web_view_load_html() looks like the proper way to do
 679          * that. Sad thing is, it doesn't create a history entry, but
 680          * instead simply replaces the content of the current page. This
 681          * is not what we want.
 682          *
 683          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 684          * mechanism to show my custom HTML snippet *and* create a
 685          * history entry.
 686          *
 687          * [0]: https://tools.ietf.org/html/rfc2397
 688          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 689         d = g_strdup_printf(data_template, c->feed_html);
 690         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 691         g_free(d);
 692     }
 693 }
 694
 695 void
 696 init_default_web_context(void) {
 697     gchar *p;
 698     WebKitWebContext *wc;
 699     WebKitCookieManager *cm;
 700
 701     wc = (cfg.private) ? webkit_web_context_new_ephemeral()
 702                        : webkit_web_context_get_default();
 703
 704     p = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock", NULL);
 705     webkit_web_context_set_sandbox_enabled(wc, TRUE);
 706     webkit_web_context_add_path_to_sandbox(wc, p, TRUE);
 707     g_free(p);
 708
 709     WebKitProcessModel model =
 710         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES;
 711     webkit_web_context_set_process_model(wc, model);
 712
 713     p = g_build_filename(g_get_user_data_dir(), __NAME__, "web_extensions",
 714                          NULL);
 715     webkit_web_context_set_web_extensions_directory(wc, p);
 716     g_free(p);
 717
 718     if (cfg.accepted_language[0] != NULL)
 719         webkit_web_context_set_preferred_languages(wc, cfg.accepted_language);
 720
 721     g_signal_connect(G_OBJECT(wc), "download-started",
 722                      G_CALLBACK(download_start), &cfg);
 723
 724     trust_user_certs(wc);
 725
 726     cm = webkit_web_context_get_cookie_manager(wc);
 727     webkit_cookie_manager_set_accept_policy(cm, cfg.cookie_policy);
 728
 729     if (!cfg.private) {
 730         webkit_web_context_set_favicon_database_directory(wc, NULL);
 731
 732         gchar *fname = g_build_filename("/", g_get_user_data_dir(), __NAME__,
 733                                         "cookies.db", NULL);
 734         WebKitCookiePersistentStorage type =
 735             WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE;
 736         webkit_cookie_manager_set_persistent_storage(cm, fname, type);
 737         g_free(fname);
 738     }
 739
 740     const gchar *const languages[2] = {(const gchar *)cfg.spellcheck_language,
 741                                        NULL};
 742     webkit_web_context_set_spell_checking_languages(wc, languages);
 743     webkit_web_context_set_spell_checking_enabled(wc, !cfg.spellcheck_disabled);
 744 }
 745
 746 void
 747 search(gpointer data, gint direction) {
 748     struct Client *c = (struct Client *)data;
 749     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 750     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 751
 752     if (search_text == NULL)
 753         return;
 754
 755     switch (direction) {
 756     case 0:
 757         webkit_find_controller_search(fc, search_text,
 758                                       WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 759                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 760                                       G_MAXUINT);
 761         break;
 762     case 1:
 763         webkit_find_controller_search_next(fc);
 764         break;
 765     case -1:
 766         webkit_find_controller_search_previous(fc);
 767         break;
 768     case 2:
 769         webkit_find_controller_search_finish(fc);
 770         break;
 771     }
 772 }
 773
 774 void
 775 search_init(struct Client *c, int direction) {
 776     gtk_widget_grab_focus(c->location);
 777     const gchar *contents = gtk_entry_get_text(GTK_ENTRY(c->location));
 778     if (strcspn(contents, "s/")) {
 779         gtk_entry_set_text(GTK_ENTRY(c->location), "s/");
 780     }
 781     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 782     search(c, 0);
 783     search(c, -1);
 784     search(c, direction);
 785 }
 786
 787 int
 788 def_key(char *key, unsigned int def) {
 789     char *conf = g_key_file_get_string(config, "keybindings", key, NULL);
 790     return (conf) ? gdk_keyval_from_name((conf) ? conf : NULL) : def;
 791 }
 792
 793 gboolean
 794 key_common(GtkWidget *widget, GdkEvent *event, gpointer data) {
 795     struct Client *c = (struct Client *)data;
 796     gdouble now;
 797     gchar *f;
 798
 799     if (event->type == GDK_KEY_PRESS) {
 800         if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK) {
 801             const char *uri =
 802                 webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 803             int key = ((GdkEventKey *)event)->keyval;
 804             if (def_key("download_manager", GDK_KEY_y) == key) {
 805                 downloadmanager_show();
 806                 return TRUE;
 807             } else if (def_key("history_back", GDK_KEY_h) == key) {
 808                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 809                 return TRUE;
 810             } else if (def_key("history_forwards", GDK_KEY_l) == key) {
 811                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 812                 return TRUE;
 813             } else if (def_key("location", GDK_KEY_t) == key) {
 814                 gtk_widget_grab_focus(c->location);
 815                 const char *goal = (strcmp(cfg.home_uri, uri) == 0 || !uri)
 816                                        ? cfg.default_uri
 817                                        : uri;
 818                 gtk_entry_set_text(GTK_ENTRY(c->location), goal);
 819                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 820                 return TRUE;
 821             } else if (def_key("print", GDK_KEY_Print) == key) {
 822                 WebKitPrintOperation *operation =
 823                     webkit_print_operation_new(WEBKIT_WEB_VIEW(c->web_view));
 824                 GtkWidget *toplevel = gtk_widget_get_toplevel(mw.win);
 825                 webkit_print_operation_run_dialog(operation,
 826                                                   GTK_WINDOW(toplevel));
 827                 return TRUE;
 828             } else if (def_key("quit", GDK_KEY_g) == key) {
 829                 search(c, 2);
 830                 gtk_widget_grab_focus(c->web_view);
 831                 gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 832                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 833                 webkit_web_view_run_javascript(
 834                     WEBKIT_WEB_VIEW(c->web_view),
 835                     "window.getSelection().removeAllRanges();"
 836                     "document.activeElement.blur();",
 837                     NULL, NULL, c);
 838                 return TRUE;
 839             } else if (def_key("reload", GDK_KEY_e) == key) {
 840                 webkit_web_view_reload_bypass_cache(
 841                     WEBKIT_WEB_VIEW(c->web_view));
 842                 return TRUE;
 843             } else if (def_key("scroll_line_down", GDK_KEY_j) == key) {
 844                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 845                     event->key.keyval = GDK_KEY_Down;
 846                     gdk_event_put(event);
 847                 }
 848                 return TRUE;
 849             } else if (def_key("scroll_line_up", GDK_KEY_k) == key) {
 850                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 851                     event->key.keyval = GDK_KEY_Up;
 852                     gdk_event_put(event);
 853                 }
 854                 return TRUE;
 855             } else if (def_key("scroll_page_down", GDK_KEY_f) == key) {
 856                 event->key.keyval = GDK_KEY_Page_Down;
 857                 gdk_event_put(event);
 858                 return TRUE;
 859             } else if (def_key("scroll_page_up", GDK_KEY_b) == key) {
 860                 event->key.keyval = GDK_KEY_Page_Up;
 861                 gdk_event_put(event);
 862                 return TRUE;
 863             } else if (def_key("search_forwards", GDK_KEY_s) == key) {
 864                 search_init(c, 1);
 865                 return TRUE;
 866             } else if (def_key("search_backwards", GDK_KEY_r) == key) {
 867                 search_init(c, -1);
 868                 return TRUE;
 869             } else if (def_key("tab_close", GDK_KEY_q) == key) {
 870                 client_destroy(NULL, c);
 871                 return TRUE;
 872             } else if (def_key("tab_switch_1", GDK_KEY_1) == key) {
 873                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 0);
 874                 return TRUE;
 875             } else if (def_key("tab_switch_2", GDK_KEY_2) == key) {
 876                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 1);
 877                 return TRUE;
 878             } else if (def_key("tab_switch_3", GDK_KEY_3) == key) {
 879                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 2);
 880                 return TRUE;
 881             } else if (def_key("tab_switch_4", GDK_KEY_4) == key) {
 882                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 3);
 883                 return TRUE;
 884             } else if (def_key("tab_switch_5", GDK_KEY_5) == key) {
 885                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 4);
 886                 return TRUE;
 887             } else if (def_key("tab_switch_6", GDK_KEY_6) == key) {
 888                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 5);
 889                 return TRUE;
 890             } else if (def_key("tab_switch_7", GDK_KEY_7) == key) {
 891                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 6);
 892                 return TRUE;
 893             } else if (def_key("tab_switch_8", GDK_KEY_8) == key) {
 894                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 7);
 895                 return TRUE;
 896             } else if (def_key("tab_switch_9", GDK_KEY_9) == key) {
 897                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 8);
 898                 return TRUE;
 899             } else if (def_key("tab_previous", GDK_KEY_u) == key) {
 900                 gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 901                 return TRUE;
 902             } else if (def_key("tab_mute", GDK_KEY_m) == key) {
 903                 gboolean muted =
 904                     webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 905                 webkit_web_view_set_is_muted(WEBKIT_WEB_VIEW(c->web_view),
 906                                              !muted);
 907                 changed_title(G_OBJECT(c->web_view), NULL, c);
 908                 return TRUE;
 909             } else if (def_key("tab_new", GDK_KEY_w) == key) {
 910                 f = ensure_uri_scheme(cfg.home_uri);
 911                 client_new(f, NULL, TRUE, TRUE);
 912                 g_free(f);
 913                 return TRUE;
 914             } else if (def_key("tab_next", GDK_KEY_i) == key) {
 915                 gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 916                 return TRUE;
 917             } else if (def_key("toggle_js", GDK_KEY_o) == key) {
 918                 gboolean on =
 919                     webkit_settings_get_enable_javascript(c->settings);
 920                 webkit_settings_set_enable_javascript(c->settings, !on);
 921                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
 922                                              c->settings);
 923                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
 924                                              !on);
 925             } else if (def_key("toggle_img", -1) == key) {
 926                 gboolean on = webkit_settings_get_auto_load_images(c->settings);
 927                 webkit_settings_set_auto_load_images(c->settings, !on);
 928                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
 929                                              c->settings);
 930                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
 931                                              !on);
 932             } else if (def_key("web_search", GDK_KEY_d) == key) {
 933                 gtk_widget_grab_focus(c->location);
 934                 gtk_entry_set_text(GTK_ENTRY(c->location), "w/");
 935                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 936                 return TRUE;
 937             } else if (def_key("zoom_in", GDK_KEY_equal) == key) {
 938                 now = webkit_web_view_get_zoom_level(
 939                     WEBKIT_WEB_VIEW(c->web_view));
 940                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 941                                                now + 0.1);
 942                 return TRUE;
 943             } else if (def_key("zoom_out", GDK_KEY_minus) == key) {
 944                 now = webkit_web_view_get_zoom_level(
 945                     WEBKIT_WEB_VIEW(c->web_view));
 946                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 947                                                now - 0.1);
 948                 return TRUE;
 949             } else if (def_key("zoom_reset", GDK_KEY_0) == key) {
 950                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 951                                                cfg.global_zoom);
 952                 return TRUE;
 953             }
 954         }
 955     }
 956     return FALSE;
 957 }
 958
 959 gboolean
 960 key_location(GtkWidget *widget, GdkEvent *event, gpointer data) {
 961     struct Client *c = (struct Client *)data;
 962     const gchar *t;
 963     gchar *f;
 964
 965     if (key_common(widget, event, data))
 966         return TRUE;
 967
 968     if (event->type == GDK_KEY_PRESS) {
 969         int key = ((GdkEventKey *)event)->keyval;
 970         if ((GDK_KEY_KP_Enter == key) || (GDK_KEY_Return == key)) {
 971             gtk_widget_grab_focus(c->web_view);
 972             t = gtk_entry_get_text(GTK_ENTRY(c->location));
 973             if (t != NULL && t[0] == 's' && t[1] == '/') {
 974                 if (search_text != NULL)
 975                     g_free(search_text);
 976                 search_text = g_strdup(t + 2);
 977                 search(c, 0);
 978             } else if (t != NULL && t[0] == 'w' && t[1] == '/') {
 979                 int len = strlen(cfg.search_engine) + strlen(t) - 2;
 980                 gchar *f = malloc(len + 1);
 981                 snprintf(f, len + 1, "%s%s", cfg.search_engine, t + 2);
 982                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 983                 g_free(f);
 984             } else {
 985                 f = ensure_uri_scheme(t);
 986                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 987                 g_free(f);
 988             }
 989             return TRUE;
 990         } else if (GDK_KEY_Escape == key) {
 991             t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 992             gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL) ? "" : t);
 993             return TRUE;
 994         }
 995     }
 996     return FALSE;
 997 }
 998
 999 gboolean
1000 key_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data) {
1001     GdkScrollDirection direction;
1002
1003     if (event->type == GDK_BUTTON_RELEASE) {
1004         switch (((GdkEventButton *)event)->button) {
1005         case 2:
1006             client_destroy(NULL, data);
1007             return TRUE;
1008         }
1009     } else if (event->type == GDK_SCROLL) {
1010         gdk_event_get_scroll_direction(event, &direction);
1011         switch (direction) {
1012         case GDK_SCROLL_UP:
1013             gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
1014             break;
1015         case GDK_SCROLL_DOWN:
1016             gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
1017             break;
1018         default:
1019             break;
1020         }
1021         return TRUE;
1022     }
1023     return FALSE;
1024 }
1025
1026 gboolean
1027 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data) {
1028     struct Client *c = (struct Client *)data;
1029     gdouble dx, dy;
1030     gfloat z;
1031
1032     if (key_common(widget, event, data))
1033         return TRUE;
1034
1035     if (event->type == GDK_KEY_PRESS) {
1036         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape) {
1037             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1038             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1039         }
1040     } else if (event->type == GDK_BUTTON_RELEASE) {
1041         switch (((GdkEventButton *)event)->button) {
1042         case 2:
1043             if (c->hover_uri != NULL) {
1044                 client_new(c->hover_uri, NULL, TRUE, FALSE);
1045                 return TRUE;
1046             }
1047             break;
1048         case 8:
1049             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1050             return TRUE;
1051         case 9:
1052             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1053             return TRUE;
1054         }
1055     } else if (event->type == GDK_SCROLL) {
1056         event->scroll.delta_y *= cfg.scroll_lines;
1057         if (((GdkEventScroll *)event)->state & GDK_CONTROL_MASK) {
1058             gdk_event_get_scroll_deltas(event, &dx, &dy);
1059             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1060             z += -dy * 0.1;
1061             z = dx != 0 ? cfg.global_zoom : z;
1062             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1063             return TRUE;
1064         }
1065     }
1066
1067     return FALSE;
1068 }
1069
1070 void
1071 mainwindow_setup(void) {
1072     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1073     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1074     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1075
1076     gchar *priv = (cfg.private) ? "-private" : "";
1077     gchar *title = malloc(strlen(priv) + strlen(__NAME__) + 1);
1078     sprintf(title, "%s%s", __NAME__, priv);
1079     gtk_window_set_title(GTK_WINDOW(mw.win), title);
1080     g_free(title);
1081
1082     mw.notebook = gtk_notebook_new();
1083     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1084     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1085     g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1086                      G_CALLBACK(notebook_switch_page), NULL);
1087 }
1088
1089 void
1090 mainwindow_title(gint idx) {
1091     GtkWidget *child, *widg, *tablabel;
1092     const gchar *text;
1093
1094     child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1095     if (child == NULL)
1096         return;
1097
1098     widg = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1099     tablabel =
1100         (GtkWidget *)g_object_get_data(G_OBJECT(widg), "chorizo-tab-label");
1101     text = gtk_label_get_text(GTK_LABEL(tablabel));
1102     gtk_window_set_title(GTK_WINDOW(mw.win), text);
1103 }
1104
1105 void
1106 notebook_switch_page(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data) {
1107     mainwindow_title(idx);
1108 }
1109
1110 gboolean
1111 quit_if_nothing_active(void) {
1112     if (clients == 0) {
1113         if (downloads == 0) {
1114             gtk_main_quit();
1115             return TRUE;
1116         } else {
1117             downloadmanager_show();
1118         }
1119     }
1120
1121     return FALSE;
1122 }
1123
1124 gboolean
1125 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data) {
1126     gchar *uri = NULL;
1127
1128     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1129     if (uri) {
1130         g_strstrip(uri);
1131         client_new(uri, NULL, TRUE, TRUE);
1132         g_free(uri);
1133     }
1134     return TRUE;
1135 }
1136
1137 void
1138 run_user_scripts(WebKitWebView *web_view) {
1139     gchar *base = NULL, *path = NULL, *contents = NULL;
1140     const gchar *entry = NULL;
1141     GDir *scriptdir = NULL;
1142
1143     base =
1144         g_build_filename(g_get_user_data_dir(), __NAME__, "user-scripts", NULL);
1145     scriptdir = g_dir_open(base, 0, NULL);
1146     if (scriptdir != NULL) {
1147         while ((entry = g_dir_read_name(scriptdir)) != NULL) {
1148             path = g_build_filename(base, entry, NULL);
1149             char *jscmd = malloc(strlen(path) + 36);
1150             sprintf(jscmd, "console.log(\"Running userscript %s\");", path);
1151             if (g_str_has_suffix(path, ".js")) {
1152                 if (g_file_get_contents(path, &contents, NULL, NULL)) {
1153                     webkit_web_view_run_javascript(web_view, jscmd, NULL, NULL,
1154                                                    NULL);
1155                     webkit_web_view_run_javascript(web_view, contents, NULL,
1156                                                    NULL, NULL);
1157                     g_free(contents);
1158                     g_free(jscmd);
1159                 }
1160             }
1161             g_free(path);
1162         }
1163         g_dir_close(scriptdir);
1164     }
1165
1166     g_free(base);
1167 }
1168
1169 void
1170 show_web_view(WebKitWebView *web_view, gpointer data) {
1171     struct Client *c = (struct Client *)data;
1172     gint idx;
1173
1174     (void)web_view;
1175
1176     gtk_widget_show_all(mw.win);
1177
1178     if (c->focus_new_tab) {
1179         idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1180         if (idx != -1)
1181             gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1182
1183         gtk_widget_grab_focus(c->web_view);
1184     }
1185 }
1186
1187 void
1188 trust_user_certs(WebKitWebContext *wc) {
1189     GTlsCertificate *cert;
1190     gchar *basedir, *absfile;
1191     const gchar *file;
1192     GDir *dir;
1193
1194     basedir = g_build_filename(g_get_user_data_dir(), __NAME__, "certs", NULL);
1195     dir = g_dir_open(basedir, 0, NULL);
1196     g_free(basedir);
1197     if (dir != NULL) {
1198         file = g_dir_read_name(dir);
1199         while (file != NULL) {
1200             absfile = g_build_filename(g_get_user_data_dir(), __NAME__, "certs",
1201                                        file, NULL);
1202             cert = g_tls_certificate_new_from_file(absfile, NULL);
1203             g_free(absfile);
1204             if (cert == NULL)
1205                 fprintf(stderr, __NAME__ ": Could not load trusted cert '%s'\n",
1206                         file);
1207             else
1208                 webkit_web_context_allow_tls_certificate_for_host(wc, cert,
1209                                                                   file);
1210             file = g_dir_read_name(dir);
1211         }
1212         g_dir_close(dir);
1213     }
1214 }
1215
1216 GKeyFile *
1217 get_ini(void) {
1218     GKeyFileFlags flags = G_KEY_FILE_NONE;
1219     config = g_key_file_new();
1220
1221     // Load user config
1222     gchar *fname = g_build_filename(g_get_user_config_dir(), __NAME__,
1223                                     "chorizo.ini", NULL);
1224     if (!g_key_file_load_from_file(config, fname, flags, NULL)) {
1225         // Load global config
1226         if (!g_key_file_load_from_file(config, "/etc/chorizo.ini", flags,
1227                                        NULL)) {
1228             fprintf(stderr, "Could not load chorizo.ini");
1229         }
1230     }
1231     g_free(fname);
1232     return config;
1233 }
1234
1235 int
1236 main(int argc, char **argv) {
1237     int opt, i;
1238
1239     while ((opt = getopt(argc, argv, "Cpv")) != -1) {
1240         switch (opt) {
1241         case 'C':
1242             cfg.cooperative_instances = FALSE;
1243             break;
1244         case 'p':
1245             cfg.private = true;
1246             break;
1247         case 'v':
1248             printf("%s %s\n", __NAME__, VERSION);
1249             exit(0);
1250         default:
1251             fprintf(stderr, "Usage: " __NAME__ " [OPTION]... [URI]...\n");
1252             exit(EXIT_FAILURE);
1253         }
1254     }
1255
1256     gtk_init(&argc, &argv);
1257     get_config();
1258
1259     if (cfg.cooperative_instances)
1260         cooperation_setup();
1261
1262     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1263         init_default_web_context();
1264
1265     downloadmanager_setup();
1266     mainwindow_setup();
1267
1268     client_arr = malloc(sizeof(struct Client *));
1269     if (optind >= argc) {
1270         client_new(cfg.home_uri, NULL, TRUE, TRUE);
1271     } else {
1272         for (i = optind; i < argc; i++)
1273             client_new(argv[i], NULL, TRUE, TRUE);
1274     }
1275
1276     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1277         gtk_main();
1278
1279     for (int i = 0; i < clients; i++) {
1280         free(&(client_arr[i]));
1281     }
1282
1283     exit(EXIT_SUCCESS);
1284 }