src/browser.c

   1 #include <fcntl.h>
   2 #include <sys/stat.h>
   3 #include <webkit2/webkit2.h>
   4
   5 #include "downloads.h"
   6
   7 void client_destroy(GtkWidget *, gpointer);
   8 WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean, gboolean);
   9 WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  10                                   gpointer);
  11 void cooperation_setup(void);
  12 void changed_load_progress(GObject *, GParamSpec *, gpointer);
  13 void changed_favicon(GObject *, GParamSpec *, gpointer);
  14 void changed_title(GObject *, GParamSpec *, gpointer);
  15 void changed_uri(GObject *, GParamSpec *, gpointer);
  16 gboolean crashed_web_view(WebKitWebView *, gpointer);
  17 gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  18                        WebKitPolicyDecisionType, gpointer);
  19 gchar *ensure_uri_scheme(const gchar *);
  20 void grab_environment_configuration(void);
  21 void grab_feeds_finished(GObject *, GAsyncResult *, gpointer);
  22 void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  23 void icon_location(GtkEntry *, GtkEntryIconPosition, GdkEvent *, gpointer);
  24 void init_default_web_context(void);
  25 gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  26 gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  27 gboolean key_tablabel(GtkWidget *, GdkEvent *, gpointer);
  28 gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  29 void mainwindow_setup(void);
  30 void mainwindow_title(gint);
  31 void notebook_switch_page(GtkNotebook *, GtkWidget *, guint, gpointer);
  32 gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  33 void run_user_scripts(WebKitWebView *);
  34 void search(gpointer, gint);
  35 void show_web_view(WebKitWebView *, gpointer);
  36 void trust_user_certs(WebKitWebContext *);
  37 GKeyFile *get_ini(void);
  38 GKeyFile *config;
  39
  40 struct Client {
  41     GtkWidget *imgbutton;
  42     GtkWidget *jsbutton;
  43     GtkWidget *location;
  44     GtkWidget *tabicon;
  45     GtkWidget *tablabel;
  46     GtkWidget *vbox;
  47     GtkWidget *web_view;
  48     WebKitSettings *settings;
  49     gboolean focus_new_tab;
  50     gchar *external_handler_uri;
  51     gchar *feed_html;
  52     gchar *hover_uri;
  53 };
  54
  55 struct Configuration {
  56     WebKitCookieAcceptPolicy cookie_policy;
  57     const gchar *accepted_language[2];
  58     gboolean cooperative_alone;
  59     gboolean cooperative_instances;
  60     gboolean enable_console_to_stdout;
  61     gboolean images_disabled;
  62     gboolean javascript_disabled;
  63     gboolean private;
  64     gboolean spellcheck_disabled;
  65     gchar *default_uri;
  66     gchar *download_dir;
  67     gchar *fifo_suffix;
  68     gchar *history_file;
  69     gchar *home_uri;
  70     gchar *search_engine;
  71     gchar *spellcheck_language;
  72     gchar *user_agent;
  73     gdouble global_zoom;
  74     gint scroll_lines;
  75     gint tab_width_chars;
  76 } cfg;
  77
  78 struct MainWindow {
  79     GtkWidget *win;
  80     GtkWidget *notebook;
  81 } mw;
  82
  83 gint clients = 0;
  84 struct Client **client_arr;
  85
  86 int cooperative_pipe_fp = 0;
  87 gchar *search_text;
  88
  89 void
  90 togglejs(GtkButton *jsbutton, gpointer data) {
  91     struct Client *c = (struct Client *)data;
  92     webkit_settings_set_enable_javascript(
  93         c->settings, !webkit_settings_get_enable_javascript(c->settings));
  94     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
  95 }
  96
  97 void
  98 toggleimg(GtkButton *imgbutton, gpointer data) {
  99     struct Client *c = (struct Client *)data;
 100     webkit_settings_set_auto_load_images(
 101         c->settings, !webkit_settings_get_auto_load_images(c->settings));
 102     webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view), c->settings);
 103 }
 104
 105 void
 106 client_destroy(GtkWidget *widget, gpointer data) {
 107     struct Client *c = (struct Client *)data;
 108     gint idx;
 109
 110     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
 111                                          changed_load_progress, c);
 112
 113     idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
 114     if (idx == -1)
 115         fprintf(stderr, __NAME__ ": Tab index was -1, bamboozled\n");
 116     else
 117         gtk_notebook_remove_page(GTK_NOTEBOOK(mw.notebook), idx);
 118
 119     free(c);
 120     clients--;
 121
 122     quit_if_nothing_active();
 123 }
 124
 125 void
 126 set_uri(const char *uri, struct Client *c) {
 127     if (!gtk_widget_is_focus(c->location)) {
 128         gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 129     }
 130 }
 131
 132 WebKitWebView *
 133 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show,
 134            gboolean focus_tab) {
 135     struct Client *c;
 136     gchar *f;
 137     GtkWidget *evbox, *tabbox;
 138
 139     if (uri != NULL && cfg.cooperative_instances && !cfg.cooperative_alone) {
 140         f = ensure_uri_scheme(uri);
 141         write(cooperative_pipe_fp, f, strlen(f));
 142         write(cooperative_pipe_fp, "\n", 1);
 143         g_free(f);
 144         return NULL;
 145     }
 146
 147     c = calloc(1, sizeof(struct Client));
 148     if (!c) {
 149         fprintf(stderr, __NAME__ ": fatal: calloc failed\n");
 150         exit(EXIT_FAILURE);
 151     }
 152
 153     c->focus_new_tab = focus_tab;
 154
 155     if (related_wv == NULL) {
 156         WebKitUserContentManager *ucm = webkit_user_content_manager_new();
 157         WebKitUserScript *wkscript;
 158         WebKitUserStyleSheet *wkstyle;
 159         gchar *path = NULL, *source, *base;
 160         const gchar *entry = NULL;
 161         GDir *dir = NULL;
 162
 163         base = g_build_filename(g_get_user_data_dir(), __NAME__, "user-scripts",
 164                                 NULL);
 165         dir = g_dir_open(base, 0, NULL);
 166         if (dir != NULL) {
 167             while ((entry = g_dir_read_name(dir)) != NULL) {
 168                 path = g_build_filename(base, entry, NULL);
 169                 if (g_str_has_suffix(path, ".js")) {
 170                     g_file_get_contents(path, &source, NULL, NULL);
 171                     wkscript = webkit_user_script_new(
 172                         source, WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
 173                         WEBKIT_USER_SCRIPT_INJECT_AT_DOCUMENT_START, NULL,
 174                         NULL);
 175                     webkit_user_content_manager_add_script(ucm, wkscript);
 176                     webkit_user_script_unref(wkscript);
 177                 }
 178                 g_free(path);
 179                 g_free(source);
 180             }
 181             g_dir_close(dir);
 182         }
 183
 184         base = g_build_filename(g_get_user_data_dir(), __NAME__, "user-styles",
 185                                 NULL);
 186         dir = g_dir_open(base, 0, NULL);
 187         if (dir != NULL) {
 188             while ((entry = g_dir_read_name(dir)) != NULL) {
 189                 path = g_build_filename(base, entry, NULL);
 190                 if (g_str_has_suffix(path, ".css")) {
 191                     g_file_get_contents(path, &source, NULL, NULL);
 192                     wkstyle = webkit_user_style_sheet_new(
 193                         source, WEBKIT_USER_CONTENT_INJECT_ALL_FRAMES,
 194                         WEBKIT_USER_STYLE_LEVEL_USER, NULL, NULL);
 195                     webkit_user_content_manager_add_style_sheet(ucm, wkstyle);
 196                     webkit_user_style_sheet_unref(wkstyle);
 197                 }
 198                 g_free(path);
 199                 g_free(source);
 200             }
 201             g_dir_close(dir);
 202         }
 203
 204         g_free(base);
 205
 206         c->web_view = webkit_web_view_new_with_user_content_manager(ucm);
 207     } else {
 208         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 209     }
 210
 211     c->settings = webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view));
 212     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 213                                    cfg.global_zoom);
 214     webkit_settings_set_enable_javascript(c->settings,
 215                                           !cfg.javascript_disabled);
 216     webkit_settings_set_auto_load_images(c->settings, !cfg.images_disabled);
 217     g_signal_connect(G_OBJECT(c->web_view), "notify::favicon",
 218                      G_CALLBACK(changed_favicon), c);
 219     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 220                      G_CALLBACK(changed_title), c);
 221     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 222                      G_CALLBACK(changed_uri), c);
 223     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 224                      G_CALLBACK(changed_load_progress), c);
 225     g_signal_connect(G_OBJECT(c->web_view), "create",
 226                      G_CALLBACK(client_new_request), NULL);
 227     g_signal_connect(G_OBJECT(c->web_view), "close", G_CALLBACK(client_destroy),
 228                      c);
 229     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 230                      G_CALLBACK(decide_policy), NULL);
 231     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 232                      G_CALLBACK(key_web_view), c);
 233     g_signal_connect(G_OBJECT(c->web_view), "button-release-event",
 234                      G_CALLBACK(key_web_view), c);
 235     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 236                      G_CALLBACK(key_web_view), c);
 237     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 238                      G_CALLBACK(hover_web_view), c);
 239     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 240                      G_CALLBACK(crashed_web_view), c);
 241
 242     if (cfg.user_agent != NULL) {
 243         g_object_set(c->settings, "user-agent", cfg.user_agent, NULL);
 244     }
 245
 246     if (cfg.enable_console_to_stdout)
 247         webkit_settings_set_enable_write_console_messages_to_stdout(c->settings,
 248                                                                     TRUE);
 249
 250     webkit_settings_set_enable_developer_extras(c->settings, TRUE);
 251
 252     GtkWidget *locbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
 253
 254     c->jsbutton = gtk_toggle_button_new_with_label("JS");
 255     gtk_widget_set_tooltip_text(c->jsbutton, "Toggle JavaScript execution");
 256     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
 257                                  !cfg.javascript_disabled);
 258     g_signal_connect(G_OBJECT(c->jsbutton), "toggled", G_CALLBACK(togglejs), c);
 259
 260     c->imgbutton = gtk_toggle_button_new_with_label("IMG");
 261     gtk_widget_set_tooltip_text(c->imgbutton, "Toggle image loading");
 262     gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
 263                                  !cfg.images_disabled);
 264     g_signal_connect(G_OBJECT(c->imgbutton), "toggled", G_CALLBACK(toggleimg),
 265                      c);
 266
 267     c->location = gtk_entry_new();
 268     gtk_box_pack_start(GTK_BOX(locbox), c->location, TRUE, TRUE, 0);
 269
 270     if (cfg.private) {
 271         GtkWidget *privindicator = gtk_label_new("Private mode");
 272         gtk_widget_set_tooltip_text(
 273             privindicator, "You are in private mode. No history, caches, or "
 274                            "cookies will be saved beyond this session.");
 275         gtk_box_pack_end(GTK_BOX(locbox), privindicator, FALSE, FALSE, 5);
 276     }
 277
 278     gtk_box_pack_start(GTK_BOX(locbox), c->jsbutton, FALSE, FALSE, 5);
 279     gtk_box_pack_start(GTK_BOX(locbox), c->imgbutton, FALSE, FALSE, 0);
 280
 281     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 282                      G_CALLBACK(key_location), c);
 283     g_signal_connect(G_OBJECT(c->location), "icon-release",
 284                      G_CALLBACK(icon_location), c);
 285     /* XXX This is a workaround. Setting this to NULL (which is done in
 286      * grab_feeds_finished() if no feed has been detected) adds a little
 287      * padding left of the text. Not sure why. The point of this call
 288      * right here is to have that padding right from the start. This
 289      * avoids a graphical artifact. */
 290     gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 291                                       GTK_ENTRY_ICON_SECONDARY, NULL);
 292
 293     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 294     gtk_box_pack_start(GTK_BOX(c->vbox), locbox, FALSE, FALSE, 0);
 295     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 296     gtk_container_set_focus_child(GTK_CONTAINER(c->vbox), c->web_view);
 297
 298     c->tabicon =
 299         gtk_image_new_from_icon_name("text-html", GTK_ICON_SIZE_SMALL_TOOLBAR);
 300
 301     c->tablabel = gtk_label_new(__NAME__);
 302     gtk_label_set_ellipsize(GTK_LABEL(c->tablabel), PANGO_ELLIPSIZE_END);
 303     gtk_label_set_width_chars(GTK_LABEL(c->tablabel), cfg.tab_width_chars);
 304     gtk_widget_set_has_tooltip(c->tablabel, TRUE);
 305
 306     /* XXX I don't own a HiDPI screen, so I don't know if scale_factor
 307      * does the right thing. */
 308     tabbox = gtk_box_new(GTK_ORIENTATION_HORIZONTAL,
 309                          5 * gtk_widget_get_scale_factor(mw.win));
 310     gtk_box_pack_start(GTK_BOX(tabbox), c->tabicon, FALSE, FALSE, 0);
 311     gtk_box_pack_start(GTK_BOX(tabbox), c->tablabel, TRUE, TRUE, 0);
 312
 313     evbox = gtk_event_box_new();
 314     gtk_container_add(GTK_CONTAINER(evbox), tabbox);
 315     g_signal_connect(G_OBJECT(evbox), "button-release-event",
 316                      G_CALLBACK(key_tablabel), c);
 317
 318     gtk_widget_add_events(evbox, GDK_SCROLL_MASK);
 319     g_signal_connect(G_OBJECT(evbox), "scroll-event", G_CALLBACK(key_tablabel),
 320                      c);
 321
 322     // For easy access, store a reference to our label.
 323     g_object_set_data(G_OBJECT(evbox), "chorizo-tab-label", c->tablabel);
 324
 325     /* This only shows the event box and the label inside, nothing else.
 326      * Needed because the evbox/label is "internal" to the notebook and
 327      * not part of the normal "widget tree" (IIUC). */
 328     gtk_widget_show_all(evbox);
 329
 330     int page = gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)) + 1;
 331     gtk_notebook_insert_page(GTK_NOTEBOOK(mw.notebook), c->vbox, evbox, page);
 332     gtk_notebook_set_tab_reorderable(GTK_NOTEBOOK(mw.notebook), c->vbox, TRUE);
 333
 334     if (show)
 335         show_web_view(NULL, c);
 336     else
 337         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 338                          G_CALLBACK(show_web_view), c);
 339
 340     if (uri != NULL) {
 341         f = ensure_uri_scheme(uri);
 342         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 343         g_free(f);
 344     }
 345
 346     set_uri(uri, c);
 347
 348     clients++;
 349     client_arr = realloc(client_arr, (clients + 1) * sizeof(client_arr[0]));
 350     client_arr[clients] = c;
 351
 352     return WEBKIT_WEB_VIEW(c->web_view);
 353 }
 354
 355 WebKitWebView *
 356 client_new_request(WebKitWebView *web_view,
 357                    WebKitNavigationAction *navigation_action, gpointer data) {
 358     return client_new(NULL, web_view, FALSE, FALSE);
 359 }
 360
 361 void
 362 cooperation_setup(void) {
 363     GIOChannel *towatch;
 364     gchar *fifofilename, *fifopath;
 365
 366     gchar *priv = (cfg.private) ? "-private" : "";
 367     fifofilename =
 368         g_strdup_printf("%s%s%s-%s", __NAME__, priv, ".fifo", cfg.fifo_suffix);
 369     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 370     g_free(fifofilename);
 371
 372     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 373         mkfifo(fifopath, 0600);
 374
 375     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 376     if (!cooperative_pipe_fp) {
 377         fprintf(stderr, __NAME__ ": Can't open FIFO at all.\n");
 378     } else {
 379         if (write(cooperative_pipe_fp, "", 0) == -1) {
 380             /* Could not do an empty write to the FIFO which means there's
 381              * no one listening. */
 382             close(cooperative_pipe_fp);
 383             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 384             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 385         } else {
 386             cfg.cooperative_alone = FALSE;
 387         }
 388     }
 389
 390     g_free(fifopath);
 391 }
 392
 393 void
 394 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data) {
 395     struct Client *c = (struct Client *)data;
 396     gdouble p;
 397     gchar *grab_feeds =
 398         "a = document.querySelectorAll('"
 399         "    html > head > "
 400         "link[rel=\"alternate\"][href][type=\"application/atom+xml\"],"
 401         "    html > head > "
 402         "link[rel=\"alternate\"][href][type=\"application/rss+xml\"]"
 403         "');"
 404         "if (a.length == 0)"
 405         "    null;"
 406         "else {"
 407         "    out = '';"
 408         "    for (i = 0; i < a.length; i++) {"
 409         "        url = encodeURIComponent(a[i].href);"
 410         "        if ('title' in a[i] && a[i].title != '')"
 411         "            title = encodeURIComponent(a[i].title);"
 412         "        else"
 413         "            title = url;"
 414         "        out += '<li><a href=\"' + url + '\">' + title + "
 415         "'</a></li>';"
 416         "    }"
 417         "    out;"
 418         "}";
 419
 420     p = webkit_web_view_get_estimated_load_progress(
 421         WEBKIT_WEB_VIEW(c->web_view));
 422     if (p == 1) {
 423         p = 0;
 424
 425         /* The page has loaded fully. We now run the short JavaScript
 426          * snippet above that operates on the DOM. It tries to grab all
 427          * occurences of <link rel="alternate" ...>, i.e. RSS/Atom feed
 428          * references. */
 429         webkit_web_view_run_javascript(WEBKIT_WEB_VIEW(c->web_view), grab_feeds,
 430                                        NULL, grab_feeds_finished, c);
 431     }
 432     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 433 }
 434
 435 void
 436 changed_favicon(GObject *obj, GParamSpec *pspec, gpointer data) {
 437     struct Client *c = (struct Client *)data;
 438     cairo_surface_t *f;
 439     int w, h, w_should, h_should;
 440     GdkPixbuf *pb, *pb_scaled;
 441
 442     f = webkit_web_view_get_favicon(WEBKIT_WEB_VIEW(c->web_view));
 443     if (f == NULL) {
 444         gtk_image_set_from_icon_name(GTK_IMAGE(c->tabicon), "text-html",
 445                                      GTK_ICON_SIZE_SMALL_TOOLBAR);
 446     } else {
 447         w = cairo_image_surface_get_width(f);
 448         h = cairo_image_surface_get_height(f);
 449         pb = gdk_pixbuf_get_from_surface(f, 0, 0, w, h);
 450         if (pb != NULL) {
 451             w_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 452             h_should = 16 * gtk_widget_get_scale_factor(c->tabicon);
 453             pb_scaled = gdk_pixbuf_scale_simple(pb, w_should, h_should,
 454                                                 GDK_INTERP_BILINEAR);
 455             gtk_image_set_from_pixbuf(GTK_IMAGE(c->tabicon), pb_scaled);
 456
 457             g_object_unref(pb_scaled);
 458             g_object_unref(pb);
 459         }
 460     }
 461 }
 462
 463 void
 464 changed_title(GObject *obj, GParamSpec *pspec, gpointer data) {
 465     const gchar *t, *u;
 466     struct Client *c = (struct Client *)data;
 467
 468     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 469     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 470
 471     u = u == NULL ? __NAME__ : u;
 472     u = u[0] == 0 ? __NAME__ : u;
 473
 474     t = t == NULL ? u : t;
 475     t = t[0] == 0 ? u : t;
 476
 477     gchar *name = malloc(strlen(t) + 4);
 478     gboolean mute = webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 479     gchar *muted = (mute) ? "[m] " : "";
 480     sprintf(name, "%s%s", muted, t);
 481     gtk_label_set_text(GTK_LABEL(c->tablabel), name);
 482     g_free(name);
 483
 484     gtk_widget_set_tooltip_text(c->tablabel, t);
 485     mainwindow_title(gtk_notebook_get_current_page(GTK_NOTEBOOK(mw.notebook)));
 486 }
 487
 488 void
 489 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data) {
 490     const gchar *t;
 491     struct Client *c = (struct Client *)data;
 492     FILE *fp;
 493
 494     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 495
 496     /* When a web process crashes, we get a "notify::uri" signal, but we
 497      * can no longer read a meaningful URI. It's just an empty string
 498      * now. Not updating the location bar in this scenario is important,
 499      * because we would override the "WEB PROCESS CRASHED" message. */
 500     if (t != NULL && strlen(t) > 0) {
 501         set_uri(t, c);
 502
 503         if (cfg.history_file != NULL && !cfg.private) {
 504             fp = fopen(cfg.history_file, "a");
 505             if (fp != NULL) {
 506                 fprintf(fp, "%s\n", t);
 507                 fclose(fp);
 508             } else {
 509                 perror(__NAME__ ": Error opening history file");
 510             }
 511         }
 512     }
 513 }
 514
 515 gboolean
 516 crashed_web_view(WebKitWebView *web_view, gpointer data) {
 517     gchar *t;
 518     struct Client *c = (struct Client *)data;
 519
 520     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 521                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 522     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 523     g_free(t);
 524
 525     return TRUE;
 526 }
 527
 528 gboolean
 529 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 530               WebKitPolicyDecisionType type, gpointer data) {
 531     WebKitResponsePolicyDecision *r;
 532
 533     switch (type) {
 534     case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 535         r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 536         if (!webkit_response_policy_decision_is_mime_type_supported(r))
 537             webkit_policy_decision_download(decision);
 538         else
 539             webkit_policy_decision_use(decision);
 540         break;
 541     default:
 542         // Use whatever default there is.
 543         return FALSE;
 544     }
 545     return TRUE;
 546 }
 547
 548 gchar *
 549 ensure_uri_scheme(const gchar *t) {
 550     gchar *f, *fabs;
 551
 552     f = g_ascii_strdown(t, -1);
 553     if (!g_str_has_prefix(f, "http:") && !g_str_has_prefix(f, "https:") &&
 554         !g_str_has_prefix(f, "file:") && !g_str_has_prefix(f, "about:") &&
 555         !g_str_has_prefix(f, "data:") && !g_str_has_prefix(f, "webkit:")) {
 556         g_free(f);
 557         fabs = realpath(t, NULL);
 558         if (fabs != NULL) {
 559             f = g_strdup_printf("file://%s", fabs);
 560             free(fabs);
 561         } else {
 562             f = g_strdup_printf("http://%s", t);
 563         }
 564         return f;
 565     } else
 566         return g_strdup(t);
 567 }
 568
 569 void
 570 get_config(void) {
 571     cfg.accepted_language[0] = NULL;
 572     cfg.accepted_language[1] = NULL;
 573     cfg.cooperative_alone = TRUE;
 574     cfg.cooperative_instances = TRUE;
 575     cfg.fifo_suffix = "main";
 576
 577     const char *e = g_getenv(__NAME_UPPERCASE__ "_FIFO_SUFFIX");
 578     if (e != NULL)
 579         cfg.fifo_suffix = g_strdup(e);
 580
 581     char *xdg_down = getenv("XDG_DOWNLOAD_DIR");
 582     cfg.download_dir = (xdg_down) ? xdg_down : "/var/tmp";
 583
 584     config = get_ini();
 585     cfg.accepted_language[0] =
 586         g_key_file_get_string(config, "browser", "accepted_language", NULL);
 587     cfg.history_file =
 588         g_key_file_get_string(config, "browser", "history_file", NULL);
 589     cfg.home_uri = g_key_file_get_string(config, "browser", "homepage", NULL);
 590     cfg.home_uri = (cfg.home_uri) ? cfg.home_uri : "about:blank";
 591     cfg.enable_console_to_stdout =
 592         g_key_file_get_boolean(config, "browser", "console_to_stdout", NULL);
 593     cfg.user_agent =
 594         g_key_file_get_string(config, "browser", "user_agent", NULL);
 595     cfg.javascript_disabled =
 596         g_key_file_get_boolean(config, "browser", "javascript_disabled", NULL);
 597     cfg.images_disabled =
 598         g_key_file_get_boolean(config, "browser", "images_disabled", NULL);
 599     char *input_cookie_policy =
 600         g_key_file_get_string(config, "browser", "cookie_policy", NULL);
 601     cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NO_THIRD_PARTY;
 602     if (input_cookie_policy) {
 603         if (strcmp(input_cookie_policy, "all") == 0) {
 604             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_ALWAYS;
 605         } else if (strcmp(input_cookie_policy, "none") == 0) {
 606             cfg.cookie_policy = WEBKIT_COOKIE_POLICY_ACCEPT_NEVER;
 607         }
 608     }
 609
 610     cfg.default_uri = g_key_file_get_string(config, "ui", "default_uri", NULL);
 611     cfg.default_uri = (cfg.default_uri) ? cfg.default_uri : "https://";
 612     cfg.tab_width_chars =
 613         g_key_file_get_integer(config, "ui", "tab_width", NULL);
 614     cfg.tab_width_chars = (cfg.tab_width_chars) ? cfg.tab_width_chars : 20;
 615     cfg.global_zoom = g_key_file_get_double(config, "ui", "zoom_level", NULL);
 616     cfg.global_zoom = (cfg.global_zoom) ? cfg.global_zoom : 1.0;
 617     cfg.search_engine =
 618         g_key_file_get_string(config, "ui", "search_engine", NULL);
 619     cfg.search_engine =
 620         (cfg.search_engine) ? cfg.search_engine : "https://duckduckgo.com?q=";
 621     cfg.spellcheck_disabled =
 622         g_key_file_get_boolean(config, "ui", "spellcheck_disabled", NULL);
 623     cfg.spellcheck_language =
 624         g_key_file_get_string(config, "ui", "spellcheck_language", NULL);
 625     cfg.spellcheck_language =
 626         (cfg.spellcheck_language) ? cfg.spellcheck_language : "en_US";
 627     cfg.scroll_lines =
 628         g_key_file_get_integer(config, "ui", "scroll_lines", NULL);
 629     cfg.scroll_lines = (cfg.scroll_lines) ? cfg.scroll_lines : 3;
 630 }
 631
 632 void
 633 grab_feeds_finished(GObject *object, GAsyncResult *result, gpointer data) {
 634     struct Client *c = (struct Client *)data;
 635     WebKitJavascriptResult *js_result;
 636     JSCValue *value;
 637     JSCException *exception;
 638     GError *err = NULL;
 639     gchar *str_value;
 640
 641     g_free(c->feed_html);
 642     c->feed_html = NULL;
 643
 644     /* This was taken almost verbatim from the example in WebKit's
 645      * documentation:
 646      *
 647      * https://webkitgtk.org/reference/webkit2gtk/stable/WebKitWebView.html
 648      */
 649
 650     js_result = webkit_web_view_run_javascript_finish(WEBKIT_WEB_VIEW(object),
 651                                                       result, &err);
 652     if (!js_result) {
 653         fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 654                 err->message);
 655         g_error_free(err);
 656         return;
 657     }
 658
 659     value = webkit_javascript_result_get_js_value(js_result);
 660     if (jsc_value_is_string(value)) {
 661         str_value = jsc_value_to_string(value);
 662         exception = jsc_context_get_exception(jsc_value_get_context(value));
 663         if (exception != NULL) {
 664             fprintf(stderr, __NAME__ ": Error running javascript: %s\n",
 665                     jsc_exception_get_message(exception));
 666         } else {
 667             c->feed_html = str_value;
 668         }
 669
 670         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 671                                           GTK_ENTRY_ICON_SECONDARY,
 672                                           "application-rss+xml-symbolic");
 673         gtk_entry_set_icon_activatable(GTK_ENTRY(c->location),
 674                                        GTK_ENTRY_ICON_PRIMARY, TRUE);
 675     } else {
 676         gtk_entry_set_icon_from_icon_name(GTK_ENTRY(c->location),
 677                                           GTK_ENTRY_ICON_SECONDARY, NULL);
 678     }
 679
 680     webkit_javascript_result_unref(js_result);
 681 }
 682
 683 void
 684 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht,
 685                guint modifiers, gpointer data) {
 686     struct Client *c = (struct Client *)data;
 687     const char *to_show;
 688
 689     g_free(c->hover_uri);
 690
 691     if (webkit_hit_test_result_context_is_link(ht)) {
 692         to_show = webkit_hit_test_result_get_link_uri(ht);
 693         c->hover_uri = g_strdup(to_show);
 694     } else {
 695         to_show = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 696         c->hover_uri = NULL;
 697     }
 698
 699     if (!gtk_widget_is_focus(c->location))
 700         set_uri(to_show, c);
 701 }
 702
 703 void
 704 icon_location(GtkEntry *entry, GtkEntryIconPosition icon_pos, GdkEvent *event,
 705               gpointer data) {
 706     struct Client *c = (struct Client *)data;
 707     gchar *d;
 708     gchar *data_template = "data:text/html,"
 709                            "<!DOCTYPE html>"
 710                            "<html>"
 711                            "    <head>"
 712                            "        <meta charset=\"UTF-8\">"
 713                            "        <title>Feeds</title>"
 714                            "    </head>"
 715                            "    <body>"
 716                            "        <p>Feeds found on this page:</p>"
 717                            "        <ul>"
 718                            "        %s"
 719                            "        </ul>"
 720                            "    </body>"
 721                            "</html>";
 722
 723     if (c->feed_html != NULL) {
 724         /* What we're actually trying to do is show a simple HTML page
 725          * that lists all the feeds on the current page. The function
 726          * webkit_web_view_load_html() looks like the proper way to do
 727          * that. Sad thing is, it doesn't create a history entry, but
 728          * instead simply replaces the content of the current page. This
 729          * is not what we want.
 730          *
 731          * RFC 2397 [0] defines the data URI scheme [1]. We abuse this
 732          * mechanism to show my custom HTML snippet *and* create a
 733          * history entry.
 734          *
 735          * [0]: https://tools.ietf.org/html/rfc2397
 736          * [1]: https://en.wikipedia.org/wiki/Data_URI_scheme */
 737         d = g_strdup_printf(data_template, c->feed_html);
 738         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), d);
 739         g_free(d);
 740     }
 741 }
 742
 743 void
 744 init_default_web_context(void) {
 745     gchar *p;
 746     WebKitWebContext *wc;
 747     WebKitCookieManager *cm;
 748
 749     wc = (cfg.private) ? webkit_web_context_new_ephemeral()
 750                        : webkit_web_context_get_default();
 751
 752     p = g_build_filename(g_get_user_config_dir(), __NAME__, "adblock", NULL);
 753     webkit_web_context_set_sandbox_enabled(wc, TRUE);
 754     webkit_web_context_add_path_to_sandbox(wc, p, TRUE);
 755     g_free(p);
 756
 757     WebKitProcessModel model =
 758         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES;
 759     webkit_web_context_set_process_model(wc, model);
 760
 761     p = g_build_filename(g_get_user_data_dir(), __NAME__, "web_extensions",
 762                          NULL);
 763     webkit_web_context_set_web_extensions_directory(wc, p);
 764     g_free(p);
 765
 766     if (cfg.accepted_language[0] != NULL)
 767         webkit_web_context_set_preferred_languages(wc, cfg.accepted_language);
 768
 769     g_signal_connect(G_OBJECT(wc), "download-started",
 770                      G_CALLBACK(download_start), cfg.download_dir);
 771
 772     trust_user_certs(wc);
 773
 774     cm = webkit_web_context_get_cookie_manager(wc);
 775     webkit_cookie_manager_set_accept_policy(cm, cfg.cookie_policy);
 776
 777     if (!cfg.private) {
 778         webkit_web_context_set_favicon_database_directory(wc, NULL);
 779
 780         gchar *fname = g_build_filename("/", g_get_user_data_dir(), __NAME__,
 781                                         "cookies.db", NULL);
 782         WebKitCookiePersistentStorage type =
 783             WEBKIT_COOKIE_PERSISTENT_STORAGE_SQLITE;
 784         webkit_cookie_manager_set_persistent_storage(cm, fname, type);
 785         g_free(fname);
 786     }
 787
 788     const gchar *const languages[2] = {(const gchar *)cfg.spellcheck_language,
 789                                        NULL};
 790     webkit_web_context_set_spell_checking_languages(wc, languages);
 791     webkit_web_context_set_spell_checking_enabled(wc, !cfg.spellcheck_disabled);
 792 }
 793
 794 void
 795 search(gpointer data, gint direction) {
 796     struct Client *c = (struct Client *)data;
 797     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 798     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 799
 800     if (search_text == NULL)
 801         return;
 802
 803     switch (direction) {
 804     case 0:
 805         webkit_find_controller_search(fc, search_text,
 806                                       WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 807                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 808                                       G_MAXUINT);
 809         break;
 810     case 1:
 811         webkit_find_controller_search_next(fc);
 812         break;
 813     case -1:
 814         webkit_find_controller_search_previous(fc);
 815         break;
 816     case 2:
 817         webkit_find_controller_search_finish(fc);
 818         break;
 819     }
 820 }
 821
 822 void
 823 search_init(struct Client *c, int direction) {
 824     gtk_widget_grab_focus(c->location);
 825     const gchar *contents = gtk_entry_get_text(GTK_ENTRY(c->location));
 826     if (strcspn(contents, "s/")) {
 827         gtk_entry_set_text(GTK_ENTRY(c->location), "s/");
 828     }
 829     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 830     search(c, 0);
 831     search(c, -1);
 832     search(c, direction);
 833 }
 834
 835 int
 836 def_key(char *key, unsigned int def) {
 837     char *conf = g_key_file_get_string(config, "keybindings", key, NULL);
 838     return (conf) ? gdk_keyval_from_name((conf) ? conf : NULL) : def;
 839 }
 840
 841 gboolean
 842 key_common(GtkWidget *widget, GdkEvent *event, gpointer data) {
 843     struct Client *c = (struct Client *)data;
 844     gdouble now;
 845     gchar *f;
 846
 847     if (event->type == GDK_KEY_PRESS) {
 848         if (((GdkEventKey *)event)->state & GDK_CONTROL_MASK) {
 849             const char *uri =
 850                 webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 851             int key = ((GdkEventKey *)event)->keyval;
 852             if (def_key("download_manager", GDK_KEY_y) == key) {
 853                 downloadmanager_show();
 854                 return TRUE;
 855             } else if (def_key("history_back", GDK_KEY_h) == key) {
 856                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 857                 return TRUE;
 858             } else if (def_key("history_forwards", GDK_KEY_l) == key) {
 859                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 860                 return TRUE;
 861             } else if (def_key("location", GDK_KEY_t) == key) {
 862                 gtk_widget_grab_focus(c->location);
 863                 const char *goal = (strcmp(cfg.home_uri, uri) == 0 || !uri)
 864                                        ? cfg.default_uri
 865                                        : uri;
 866                 gtk_entry_set_text(GTK_ENTRY(c->location), goal);
 867                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 868                 return TRUE;
 869             } else if (def_key("print", GDK_KEY_Print) == key) {
 870                 WebKitPrintOperation *operation =
 871                     webkit_print_operation_new(WEBKIT_WEB_VIEW(c->web_view));
 872                 GtkWidget *toplevel = gtk_widget_get_toplevel(mw.win);
 873                 webkit_print_operation_run_dialog(operation,
 874                                                   GTK_WINDOW(toplevel));
 875                 return TRUE;
 876             } else if (def_key("quit", GDK_KEY_g) == key) {
 877                 search(c, 2);
 878                 gtk_widget_grab_focus(c->web_view);
 879                 gtk_entry_set_text(GTK_ENTRY(c->location), uri);
 880                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 881                 webkit_web_view_run_javascript(
 882                     WEBKIT_WEB_VIEW(c->web_view),
 883                     "window.getSelection().removeAllRanges();"
 884                     "document.activeElement.blur();",
 885                     NULL, NULL, c);
 886                 return TRUE;
 887             } else if (def_key("reload", GDK_KEY_e) == key) {
 888                 webkit_web_view_reload_bypass_cache(
 889                     WEBKIT_WEB_VIEW(c->web_view));
 890                 return TRUE;
 891             } else if (def_key("scroll_line_down", GDK_KEY_j) == key) {
 892                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 893                     event->key.keyval = GDK_KEY_Down;
 894                     gdk_event_put(event);
 895                 }
 896                 return TRUE;
 897             } else if (def_key("scroll_line_up", GDK_KEY_k) == key) {
 898                 for (int i = 0; i <= cfg.scroll_lines - 1; i++) {
 899                     event->key.keyval = GDK_KEY_Up;
 900                     gdk_event_put(event);
 901                 }
 902                 return TRUE;
 903             } else if (def_key("scroll_page_down", GDK_KEY_f) == key) {
 904                 event->key.keyval = GDK_KEY_Page_Down;
 905                 gdk_event_put(event);
 906                 return TRUE;
 907             } else if (def_key("scroll_page_up", GDK_KEY_b) == key) {
 908                 event->key.keyval = GDK_KEY_Page_Up;
 909                 gdk_event_put(event);
 910                 return TRUE;
 911             } else if (def_key("search_forwards", GDK_KEY_s) == key) {
 912                 search_init(c, 1);
 913                 return TRUE;
 914             } else if (def_key("search_backwards", GDK_KEY_r) == key) {
 915                 search_init(c, -1);
 916                 return TRUE;
 917             } else if (def_key("tab_close", GDK_KEY_q) == key) {
 918                 client_destroy(NULL, c);
 919                 return TRUE;
 920             } else if (def_key("tab_switch_1", GDK_KEY_1) == key) {
 921                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 0);
 922                 return TRUE;
 923             } else if (def_key("tab_switch_2", GDK_KEY_2) == key) {
 924                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 1);
 925                 return TRUE;
 926             } else if (def_key("tab_switch_3", GDK_KEY_3) == key) {
 927                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 2);
 928                 return TRUE;
 929             } else if (def_key("tab_switch_4", GDK_KEY_4) == key) {
 930                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 3);
 931                 return TRUE;
 932             } else if (def_key("tab_switch_5", GDK_KEY_5) == key) {
 933                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 4);
 934                 return TRUE;
 935             } else if (def_key("tab_switch_6", GDK_KEY_6) == key) {
 936                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 5);
 937                 return TRUE;
 938             } else if (def_key("tab_switch_7", GDK_KEY_7) == key) {
 939                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 6);
 940                 return TRUE;
 941             } else if (def_key("tab_switch_8", GDK_KEY_8) == key) {
 942                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 7);
 943                 return TRUE;
 944             } else if (def_key("tab_switch_9", GDK_KEY_9) == key) {
 945                 gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), 8);
 946                 return TRUE;
 947             } else if (def_key("tab_previous", GDK_KEY_u) == key) {
 948                 gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
 949                 return TRUE;
 950             } else if (def_key("tab_mute", GDK_KEY_m) == key) {
 951                 gboolean muted =
 952                     webkit_web_view_get_is_muted(WEBKIT_WEB_VIEW(c->web_view));
 953                 webkit_web_view_set_is_muted(WEBKIT_WEB_VIEW(c->web_view),
 954                                              !muted);
 955                 changed_title(G_OBJECT(c->web_view), NULL, c);
 956                 return TRUE;
 957             } else if (def_key("tab_new", GDK_KEY_w) == key) {
 958                 f = ensure_uri_scheme(cfg.home_uri);
 959                 client_new(f, NULL, TRUE, TRUE);
 960                 g_free(f);
 961                 return TRUE;
 962             } else if (def_key("tab_next", GDK_KEY_i) == key) {
 963                 gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
 964                 return TRUE;
 965             } else if (def_key("toggle_js", GDK_KEY_o) == key) {
 966                 gboolean on =
 967                     webkit_settings_get_enable_javascript(c->settings);
 968                 webkit_settings_set_enable_javascript(c->settings, !on);
 969                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
 970                                              c->settings);
 971                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->jsbutton),
 972                                              !on);
 973             } else if (def_key("toggle_img", -1) == key) {
 974                 gboolean on = webkit_settings_get_auto_load_images(c->settings);
 975                 webkit_settings_set_auto_load_images(c->settings, !on);
 976                 webkit_web_view_set_settings(WEBKIT_WEB_VIEW(c->web_view),
 977                                              c->settings);
 978                 gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(c->imgbutton),
 979                                              !on);
 980             } else if (def_key("web_search", GDK_KEY_d) == key) {
 981                 gtk_widget_grab_focus(c->location);
 982                 gtk_entry_set_text(GTK_ENTRY(c->location), "w/");
 983                 gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 984                 return TRUE;
 985             } else if (def_key("zoom_in", GDK_KEY_equal) == key) {
 986                 now = webkit_web_view_get_zoom_level(
 987                     WEBKIT_WEB_VIEW(c->web_view));
 988                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 989                                                now + 0.1);
 990                 return TRUE;
 991             } else if (def_key("zoom_out", GDK_KEY_minus) == key) {
 992                 now = webkit_web_view_get_zoom_level(
 993                     WEBKIT_WEB_VIEW(c->web_view));
 994                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 995                                                now - 0.1);
 996                 return TRUE;
 997             } else if (def_key("zoom_reset", GDK_KEY_0) == key) {
 998                 webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view),
 999                                                cfg.global_zoom);
1000                 return TRUE;
1001             }
1002         }
1003     }
1004     return FALSE;
1005 }
1006
1007 gboolean
1008 key_location(GtkWidget *widget, GdkEvent *event, gpointer data) {
1009     struct Client *c = (struct Client *)data;
1010     const gchar *t;
1011     gchar *f;
1012
1013     if (key_common(widget, event, data))
1014         return TRUE;
1015
1016     if (event->type == GDK_KEY_PRESS) {
1017         int key = ((GdkEventKey *)event)->keyval;
1018         if ((GDK_KEY_KP_Enter == key) || (GDK_KEY_Return == key)) {
1019             gtk_widget_grab_focus(c->web_view);
1020             t = gtk_entry_get_text(GTK_ENTRY(c->location));
1021             if (t != NULL && t[0] == 's' && t[1] == '/') {
1022                 if (search_text != NULL)
1023                     g_free(search_text);
1024                 search_text = g_strdup(t + 2);
1025                 search(c, 0);
1026             } else if (t != NULL && t[0] == 'w' && t[1] == '/') {
1027                 int len = strlen(cfg.search_engine) + strlen(t) - 2;
1028                 gchar *f = malloc(len + 1);
1029                 snprintf(f, len + 1, "%s%s", cfg.search_engine, t + 2);
1030                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1031                 g_free(f);
1032             } else {
1033                 f = ensure_uri_scheme(t);
1034                 webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
1035                 g_free(f);
1036             }
1037             return TRUE;
1038         } else if (GDK_KEY_Escape == key) {
1039             t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
1040             gtk_entry_set_text(GTK_ENTRY(c->location), (t == NULL) ? "" : t);
1041             return TRUE;
1042         }
1043     }
1044     return FALSE;
1045 }
1046
1047 gboolean
1048 key_tablabel(GtkWidget *widget, GdkEvent *event, gpointer data) {
1049     GdkScrollDirection direction;
1050
1051     if (event->type == GDK_BUTTON_RELEASE) {
1052         switch (((GdkEventButton *)event)->button) {
1053         case 2:
1054             client_destroy(NULL, data);
1055             return TRUE;
1056         }
1057     } else if (event->type == GDK_SCROLL) {
1058         gdk_event_get_scroll_direction(event, &direction);
1059         switch (direction) {
1060         case GDK_SCROLL_UP:
1061             gtk_notebook_prev_page(GTK_NOTEBOOK(mw.notebook));
1062             break;
1063         case GDK_SCROLL_DOWN:
1064             gtk_notebook_next_page(GTK_NOTEBOOK(mw.notebook));
1065             break;
1066         default:
1067             break;
1068         }
1069         return TRUE;
1070     }
1071     return FALSE;
1072 }
1073
1074 gboolean
1075 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data) {
1076     struct Client *c = (struct Client *)data;
1077     gdouble dx, dy;
1078     gfloat z;
1079
1080     if (key_common(widget, event, data))
1081         return TRUE;
1082
1083     if (event->type == GDK_KEY_PRESS) {
1084         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape) {
1085             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
1086             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
1087         }
1088     } else if (event->type == GDK_BUTTON_RELEASE) {
1089         switch (((GdkEventButton *)event)->button) {
1090         case 2:
1091             if (c->hover_uri != NULL) {
1092                 client_new(c->hover_uri, NULL, TRUE, FALSE);
1093                 return TRUE;
1094             }
1095             break;
1096         case 8:
1097             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
1098             return TRUE;
1099         case 9:
1100             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
1101             return TRUE;
1102         }
1103     } else if (event->type == GDK_SCROLL) {
1104         event->scroll.delta_y *= cfg.scroll_lines;
1105         if (((GdkEventScroll *)event)->state & GDK_CONTROL_MASK) {
1106             gdk_event_get_scroll_deltas(event, &dx, &dy);
1107             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
1108             z += -dy * 0.1;
1109             z = dx != 0 ? cfg.global_zoom : z;
1110             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
1111             return TRUE;
1112         }
1113     }
1114
1115     return FALSE;
1116 }
1117
1118 void
1119 mainwindow_setup(void) {
1120     mw.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
1121     gtk_window_set_default_size(GTK_WINDOW(mw.win), 800, 600);
1122     g_signal_connect(G_OBJECT(mw.win), "destroy", gtk_main_quit, NULL);
1123
1124     gchar *priv = (cfg.private) ? "-private" : "";
1125     gchar *title = malloc(strlen(priv) + strlen(__NAME__) + 1);
1126     sprintf(title, "%s%s", __NAME__, priv);
1127     gtk_window_set_title(GTK_WINDOW(mw.win), title);
1128     g_free(title);
1129
1130     mw.notebook = gtk_notebook_new();
1131     gtk_notebook_set_scrollable(GTK_NOTEBOOK(mw.notebook), TRUE);
1132     gtk_container_add(GTK_CONTAINER(mw.win), mw.notebook);
1133     g_signal_connect(G_OBJECT(mw.notebook), "switch-page",
1134                      G_CALLBACK(notebook_switch_page), NULL);
1135 }
1136
1137 void
1138 mainwindow_title(gint idx) {
1139     GtkWidget *child, *widg, *tablabel;
1140     const gchar *text;
1141
1142     child = gtk_notebook_get_nth_page(GTK_NOTEBOOK(mw.notebook), idx);
1143     if (child == NULL)
1144         return;
1145
1146     widg = gtk_notebook_get_tab_label(GTK_NOTEBOOK(mw.notebook), child);
1147     tablabel =
1148         (GtkWidget *)g_object_get_data(G_OBJECT(widg), "chorizo-tab-label");
1149     text = gtk_label_get_text(GTK_LABEL(tablabel));
1150     gtk_window_set_title(GTK_WINDOW(mw.win), text);
1151 }
1152
1153 void
1154 notebook_switch_page(GtkNotebook *nb, GtkWidget *p, guint idx, gpointer data) {
1155     mainwindow_title(idx);
1156 }
1157
1158 gboolean
1159 quit_if_nothing_active(void) {
1160     if (clients == 0) {
1161         if (downloads == 0) {
1162             gtk_main_quit();
1163             return TRUE;
1164         } else {
1165             downloadmanager_show();
1166         }
1167     }
1168
1169     return FALSE;
1170 }
1171
1172 gboolean
1173 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data) {
1174     gchar *uri = NULL;
1175
1176     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
1177     if (uri) {
1178         g_strstrip(uri);
1179         client_new(uri, NULL, TRUE, TRUE);
1180         g_free(uri);
1181     }
1182     return TRUE;
1183 }
1184
1185 void
1186 show_web_view(WebKitWebView *web_view, gpointer data) {
1187     struct Client *c = (struct Client *)data;
1188     gint idx;
1189
1190     (void)web_view;
1191
1192     gtk_widget_show_all(mw.win);
1193
1194     if (c->focus_new_tab) {
1195         idx = gtk_notebook_page_num(GTK_NOTEBOOK(mw.notebook), c->vbox);
1196         if (idx != -1)
1197             gtk_notebook_set_current_page(GTK_NOTEBOOK(mw.notebook), idx);
1198
1199         gtk_widget_grab_focus(c->web_view);
1200     }
1201 }
1202
1203 void
1204 trust_user_certs(WebKitWebContext *wc) {
1205     GTlsCertificate *cert;
1206     gchar *basedir, *absfile;
1207     const gchar *file;
1208     GDir *dir = NULL;
1209
1210     basedir = g_build_filename(g_get_user_data_dir(), __NAME__, "certs", NULL);
1211     dir = g_dir_open(basedir, 0, NULL);
1212     g_free(basedir);
1213     if (dir != NULL) {
1214         file = g_dir_read_name(dir);
1215         while (file != NULL) {
1216             absfile = g_build_filename(g_get_user_data_dir(), __NAME__, "certs",
1217                                        file, NULL);
1218             cert = g_tls_certificate_new_from_file(absfile, NULL);
1219             g_free(absfile);
1220             if (cert == NULL)
1221                 fprintf(stderr, __NAME__ ": Could not load trusted cert '%s'\n",
1222                         file);
1223             else
1224                 webkit_web_context_allow_tls_certificate_for_host(wc, cert,
1225                                                                   file);
1226             file = g_dir_read_name(dir);
1227         }
1228         g_dir_close(dir);
1229     }
1230 }
1231
1232 GKeyFile *
1233 get_ini(void) {
1234     GKeyFileFlags flags = G_KEY_FILE_NONE;
1235     config = g_key_file_new();
1236
1237     // Load user config
1238     gchar *fname = g_build_filename(g_get_user_config_dir(), __NAME__,
1239                                     "chorizo.ini", NULL);
1240     if (!g_key_file_load_from_file(config, fname, flags, NULL)) {
1241         // Load global config
1242         if (!g_key_file_load_from_file(config, "/etc/chorizo.ini", flags,
1243                                        NULL)) {
1244             fprintf(stderr, "Could not load chorizo.ini");
1245         }
1246     }
1247     g_free(fname);
1248     return config;
1249 }
1250
1251 int
1252 main(int argc, char **argv) {
1253     int opt, i;
1254
1255     while ((opt = getopt(argc, argv, "Cpv")) != -1) {
1256         switch (opt) {
1257         case 'C':
1258             cfg.cooperative_instances = FALSE;
1259             break;
1260         case 'p':
1261             cfg.private = true;
1262             break;
1263         case 'v':
1264             printf("%s %s\n", __NAME__, VERSION);
1265             exit(0);
1266         default:
1267             fprintf(stderr, "Usage: " __NAME__ " [OPTION]... [URI]...\n");
1268             exit(EXIT_FAILURE);
1269         }
1270     }
1271
1272     gtk_init(&argc, &argv);
1273
1274     // Keep clipboard contents after program closes
1275     gtk_clipboard_store(gtk_clipboard_get_for_display(gdk_display_get_default(),
1276                                                       GDK_SELECTION_CLIPBOARD));
1277
1278     get_config();
1279
1280     if (cfg.cooperative_instances)
1281         cooperation_setup();
1282
1283     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1284         init_default_web_context();
1285
1286     downloadmanager_setup();
1287     mainwindow_setup();
1288
1289     client_arr = malloc(sizeof(struct Client *));
1290     if (optind >= argc) {
1291         client_new(cfg.home_uri, NULL, TRUE, TRUE);
1292     } else {
1293         for (i = optind; i < argc; i++)
1294             client_new(argv[i], NULL, TRUE, TRUE);
1295     }
1296
1297     if (!cfg.cooperative_instances || cfg.cooperative_alone)
1298         gtk_main();
1299
1300     for (int i = 0; i < clients; i++) {
1301         free(&(client_arr[i]));
1302     }
1303
1304     exit(EXIT_SUCCESS);
1305 }