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