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