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