browser.c

   1 #include <limits.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <sys/types.h>
   5 #include <sys/stat.h>
   6 #include <fcntl.h>
   7 #include <string.h>
   8
   9 #include <gtk/gtk.h>
  10 #include <gtk/gtkx.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <gio/gio.h>
  13 #include <webkit2/webkit2.h>
  14
  15
  16 static void client_destroy(GtkWidget *, gpointer);
  17 static gboolean client_destroy_request(WebKitWebView *, gpointer);
  18 static WebKitWebView *client_new(const gchar *, WebKitWebView *, gboolean);
  19 static WebKitWebView *client_new_request(WebKitWebView *, WebKitNavigationAction *,
  20                                          gpointer);
  21 static void cooperation_setup(void);
  22 static void changed_download_progress(GObject *, GParamSpec *, gpointer);
  23 static void changed_load_progress(GObject *, GParamSpec *, gpointer);
  24 static void changed_title(GObject *, GParamSpec *, gpointer);
  25 static void changed_uri(GObject *, GParamSpec *, gpointer);
  26 static gboolean crashed_web_view(WebKitWebView *, gpointer);
  27 static gboolean decide_policy(WebKitWebView *, WebKitPolicyDecision *,
  28                               WebKitPolicyDecisionType, gpointer);
  29 static gboolean download_handle(WebKitDownload *, gchar *, gpointer);
  30 static void download_handle_start(WebKitWebView *, WebKitDownload *, gpointer);
  31 static void downloadmanager_cancel(GtkToolButton *, gpointer data);
  32 static gboolean downloadmanager_delete(GtkWidget *, gpointer);
  33 static void downloadmanager_setup(void);
  34 static gchar *ensure_uri_scheme(const gchar *);
  35 static void external_handler_run(GtkAction *, gpointer);
  36 static void grab_environment_configuration(void);
  37 static void hover_web_view(WebKitWebView *, WebKitHitTestResult *, guint, gpointer);
  38 static gboolean key_common(GtkWidget *, GdkEvent *, gpointer);
  39 static gboolean key_downloadmanager(GtkWidget *, GdkEvent *, gpointer);
  40 static gboolean key_location(GtkWidget *, GdkEvent *, gpointer);
  41 static gboolean key_web_view(GtkWidget *, GdkEvent *, gpointer);
  42 static void keywords_load(void);
  43 static gboolean keywords_try_search(WebKitWebView *, const gchar *);
  44 static gboolean menu_web_view(WebKitWebView *, WebKitContextMenu *, GdkEvent *,
  45                               WebKitHitTestResult *, gpointer);
  46 static gboolean quit_if_nothing_active(void);
  47 static gboolean remote_msg(GIOChannel *, GIOCondition, gpointer);
  48 static void search(gpointer, gint);
  49 static void show_web_view(WebKitWebView *, gpointer);
  50 static Window tabbed_launch(void);
  51 static void trust_user_certs(WebKitWebContext *);
  52
  53
  54 struct Client
  55 {
  56     gchar *external_handler_uri;
  57     gchar *hover_uri;
  58     GtkWidget *location;
  59     GtkWidget *vbox;
  60     GtkWidget *web_view;
  61     GtkWidget *win;
  62 };
  63
  64 struct DownloadManager
  65 {
  66     GtkWidget *scroll;
  67     GtkWidget *toolbar;
  68     GtkWidget *win;
  69 } dm;
  70
  71
  72 static const gchar *accepted_language[2] = { NULL, NULL };
  73 static gint clients = 0, downloads = 0;
  74 static gboolean cooperative_alone = TRUE;
  75 static gboolean cooperative_instances = TRUE;
  76 static int cooperative_pipe_fp = 0;
  77 static gchar *download_dir = "/var/tmp";
  78 static gboolean enable_webgl = FALSE;
  79 static Window embed = 0;
  80 static gchar *fifo_suffix = "main";
  81 static gdouble global_zoom = 1.0;
  82 static gchar *history_file = NULL;
  83 static gchar *home_uri = "about:blank";
  84 static gboolean initial_wc_setup_done = FALSE;
  85 static GHashTable *keywords = NULL;
  86 static gchar *search_text = NULL;
  87 static gboolean tabbed_automagic = TRUE;
  88 static gchar *user_agent = NULL;
  89
  90
  91 void
  92 client_destroy(GtkWidget *widget, gpointer data)
  93 {
  94     struct Client *c = (struct Client *)data;
  95
  96     g_signal_handlers_disconnect_by_func(G_OBJECT(c->web_view),
  97                                          changed_load_progress, c);
  98
  99     free(c);
 100     clients--;
 101
 102     quit_if_nothing_active();
 103 }
 104
 105 gboolean
 106 client_destroy_request(WebKitWebView *web_view, gpointer data)
 107 {
 108     struct Client *c = (struct Client *)data;
 109
 110     gtk_widget_destroy(c->win);
 111
 112     return TRUE;
 113 }
 114
 115 WebKitWebView *
 116 client_new(const gchar *uri, WebKitWebView *related_wv, gboolean show)
 117 {
 118     struct Client *c;
 119     WebKitWebContext *wc;
 120     gchar *f;
 121
 122     if (uri != NULL && cooperative_instances && !cooperative_alone)
 123     {
 124         f = ensure_uri_scheme(uri);
 125         write(cooperative_pipe_fp, f, strlen(f));
 126         write(cooperative_pipe_fp, "\n", 1);
 127         g_free(f);
 128         return NULL;
 129     }
 130
 131     c = calloc(1, sizeof(struct Client));
 132     if (!c)
 133     {
 134         fprintf(stderr, __NAME__": fatal: calloc failed\n");
 135         exit(EXIT_FAILURE);
 136     }
 137
 138     if (embed != 0)
 139     {
 140         c->win = gtk_plug_new(embed);
 141         if (!gtk_plug_get_embedded(GTK_PLUG(c->win)))
 142         {
 143             fprintf(stderr, __NAME__": Can't plug-in to XID %ld.\n", embed);
 144             gtk_widget_destroy(c->win);
 145             c->win = NULL;
 146             embed = 0;
 147         }
 148     }
 149
 150     if (c->win == NULL)
 151         c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 152
 153     gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 154
 155     g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(client_destroy), c);
 156     gtk_window_set_title(GTK_WINDOW(c->win), __NAME__);
 157
 158     if (related_wv == NULL)
 159         c->web_view = webkit_web_view_new();
 160     else
 161         c->web_view = webkit_web_view_new_with_related_view(related_wv);
 162     wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 163
 164     webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), global_zoom);
 165     g_signal_connect(G_OBJECT(c->web_view), "notify::title",
 166                      G_CALLBACK(changed_title), c);
 167     g_signal_connect(G_OBJECT(c->web_view), "notify::uri",
 168                      G_CALLBACK(changed_uri), c);
 169     g_signal_connect(G_OBJECT(c->web_view), "notify::estimated-load-progress",
 170                      G_CALLBACK(changed_load_progress), c);
 171     g_signal_connect(G_OBJECT(c->web_view), "create",
 172                      G_CALLBACK(client_new_request), NULL);
 173     g_signal_connect(G_OBJECT(c->web_view), "context-menu",
 174                      G_CALLBACK(menu_web_view), c);
 175     g_signal_connect(G_OBJECT(c->web_view), "close",
 176                      G_CALLBACK(client_destroy_request), c);
 177     g_signal_connect(G_OBJECT(c->web_view), "decide-policy",
 178                      G_CALLBACK(decide_policy), NULL);
 179     g_signal_connect(G_OBJECT(c->web_view), "key-press-event",
 180                      G_CALLBACK(key_web_view), c);
 181     g_signal_connect(G_OBJECT(c->web_view), "button-press-event",
 182                      G_CALLBACK(key_web_view), c);
 183     g_signal_connect(G_OBJECT(c->web_view), "scroll-event",
 184                      G_CALLBACK(key_web_view), c);
 185     g_signal_connect(G_OBJECT(c->web_view), "mouse-target-changed",
 186                      G_CALLBACK(hover_web_view), c);
 187     g_signal_connect(G_OBJECT(c->web_view), "web-process-crashed",
 188                      G_CALLBACK(crashed_web_view), c);
 189
 190     if (!initial_wc_setup_done)
 191     {
 192         if (accepted_language[0] != NULL)
 193             webkit_web_context_set_preferred_languages(wc, accepted_language);
 194
 195         g_signal_connect(G_OBJECT(wc), "download-started",
 196                          G_CALLBACK(download_handle_start), NULL);
 197
 198         trust_user_certs(wc);
 199
 200         initial_wc_setup_done = TRUE;
 201     }
 202
 203     if (user_agent != NULL)
 204         g_object_set(G_OBJECT(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view))),
 205                      "user-agent", user_agent, NULL);
 206
 207     if (enable_webgl)
 208         webkit_settings_set_enable_webgl(webkit_web_view_get_settings(WEBKIT_WEB_VIEW(c->web_view)), TRUE);
 209
 210     c->location = gtk_entry_new();
 211     g_signal_connect(G_OBJECT(c->location), "key-press-event",
 212                      G_CALLBACK(key_location), c);
 213
 214     c->vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);
 215     gtk_box_pack_start(GTK_BOX(c->vbox), c->location, FALSE, FALSE, 0);
 216     gtk_box_pack_start(GTK_BOX(c->vbox), c->web_view, TRUE, TRUE, 0);
 217
 218     gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 219
 220     if (show)
 221         show_web_view(NULL, c);
 222     else
 223         g_signal_connect(G_OBJECT(c->web_view), "ready-to-show",
 224                          G_CALLBACK(show_web_view), c);
 225
 226     if (uri != NULL)
 227     {
 228         f = ensure_uri_scheme(uri);
 229         webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 230         g_free(f);
 231     }
 232
 233     clients++;
 234
 235     return WEBKIT_WEB_VIEW(c->web_view);
 236 }
 237
 238 WebKitWebView *
 239 client_new_request(WebKitWebView *web_view,
 240                    WebKitNavigationAction *navigation_action, gpointer data)
 241 {
 242     return client_new(NULL, web_view, FALSE);
 243 }
 244
 245 void
 246 cooperation_setup(void)
 247 {
 248     GIOChannel *towatch;
 249     gchar *fifofilename, *fifopath;
 250
 251     fifofilename = g_strdup_printf("%s-%s", __NAME__".fifo", fifo_suffix);
 252     fifopath = g_build_filename(g_get_user_runtime_dir(), fifofilename, NULL);
 253     g_free(fifofilename);
 254
 255     if (!g_file_test(fifopath, G_FILE_TEST_EXISTS))
 256         mkfifo(fifopath, 0600);
 257
 258     cooperative_pipe_fp = open(fifopath, O_WRONLY | O_NONBLOCK);
 259     if (!cooperative_pipe_fp)
 260     {
 261         fprintf(stderr, __NAME__": Can't open FIFO at all.\n");
 262     }
 263     else
 264     {
 265         if (write(cooperative_pipe_fp, "", 0) == -1)
 266         {
 267             /* Could not do an empty write to the FIFO which means there's
 268              * no one listening. */
 269             close(cooperative_pipe_fp);
 270             towatch = g_io_channel_new_file(fifopath, "r+", NULL);
 271             g_io_add_watch(towatch, G_IO_IN, (GIOFunc)remote_msg, NULL);
 272         }
 273         else
 274             cooperative_alone = FALSE;
 275     }
 276
 277     g_free(fifopath);
 278 }
 279
 280 void
 281 changed_download_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 282 {
 283     WebKitDownload *download = WEBKIT_DOWNLOAD(obj);
 284     WebKitURIResponse *resp;
 285     GtkToolItem *tb = GTK_TOOL_ITEM(data);
 286     gdouble p, size_mb;
 287     const gchar *uri;
 288     gchar *t, *filename, *base;
 289
 290     p = webkit_download_get_estimated_progress(download);
 291     p = p > 1 ? 1 : p;
 292     p = p < 0 ? 0 : p;
 293     p *= 100;
 294     resp = webkit_download_get_response(download);
 295     size_mb = webkit_uri_response_get_content_length(resp) / 1e6;
 296
 297     uri = webkit_download_get_destination(download);
 298     filename = g_filename_from_uri(uri, NULL, NULL);
 299     if (filename == NULL)
 300     {
 301         /* This really should not happen because WebKit uses that URI to
 302          * write to a file... */
 303         fprintf(stderr, __NAME__": Could not construct file name from URI!\n");
 304         t = g_strdup_printf("%s (%.0f%% of %.1f MB)",
 305                             webkit_uri_response_get_uri(resp), p, size_mb);
 306     }
 307     else
 308     {
 309         base = g_path_get_basename(filename);
 310         t = g_strdup_printf("%s (%.0f%% of %.1f MB)", base, p, size_mb);
 311         g_free(filename);
 312         g_free(base);
 313     }
 314     gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), t);
 315     g_free(t);
 316 }
 317
 318 void
 319 changed_load_progress(GObject *obj, GParamSpec *pspec, gpointer data)
 320 {
 321     struct Client *c = (struct Client *)data;
 322     gdouble p;
 323
 324     p = webkit_web_view_get_estimated_load_progress(WEBKIT_WEB_VIEW(c->web_view));
 325     if (p == 1)
 326         p = 0;
 327     gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), p);
 328 }
 329
 330 void
 331 changed_title(GObject *obj, GParamSpec *pspec, gpointer data)
 332 {
 333     const gchar *t, *u;
 334     struct Client *c = (struct Client *)data;
 335
 336     u = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 337     t = webkit_web_view_get_title(WEBKIT_WEB_VIEW(c->web_view));
 338
 339     u = u == NULL ? __NAME__ : u;
 340     u = u[0] == 0 ? __NAME__ : u;
 341
 342     t = t == NULL ? u : t;
 343     t = t[0] == 0 ? u : t;
 344
 345     gtk_window_set_title(GTK_WINDOW(c->win), t);
 346 }
 347
 348 void
 349 changed_uri(GObject *obj, GParamSpec *pspec, gpointer data)
 350 {
 351     const gchar *t;
 352     struct Client *c = (struct Client *)data;
 353     FILE *fp;
 354
 355     t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 356
 357     /* When a web process crashes, we get a "notify::uri" signal, but we
 358      * can no longer read a meaningful URI. It's just an empty string
 359      * now. Not updating the location bar in this scenario is important,
 360      * because we would override the "WEB PROCESS CRASHED" message. */
 361     if (t != NULL && strlen(t) > 0)
 362     {
 363         gtk_entry_set_text(GTK_ENTRY(c->location), t);
 364
 365         if (history_file != NULL)
 366         {
 367             fp = fopen(history_file, "a");
 368             if (fp != NULL)
 369             {
 370                 fprintf(fp, "%s\n", t);
 371                 fclose(fp);
 372             }
 373             else
 374                 perror(__NAME__": Error opening history file");
 375         }
 376     }
 377 }
 378
 379 gboolean
 380 crashed_web_view(WebKitWebView *web_view, gpointer data)
 381 {
 382     gchar *t;
 383     struct Client *c = (struct Client *)data;
 384
 385     t = g_strdup_printf("WEB PROCESS CRASHED: %s",
 386                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(web_view)));
 387     gtk_entry_set_text(GTK_ENTRY(c->location), t);
 388     g_free(t);
 389
 390     return TRUE;
 391 }
 392
 393 gboolean
 394 decide_policy(WebKitWebView *web_view, WebKitPolicyDecision *decision,
 395               WebKitPolicyDecisionType type, gpointer data)
 396 {
 397     WebKitResponsePolicyDecision *r;
 398
 399     switch (type)
 400     {
 401         case WEBKIT_POLICY_DECISION_TYPE_RESPONSE:
 402             r = WEBKIT_RESPONSE_POLICY_DECISION(decision);
 403             if (!webkit_response_policy_decision_is_mime_type_supported(r))
 404                 webkit_policy_decision_download(decision);
 405             else
 406                 webkit_policy_decision_use(decision);
 407             break;
 408         default:
 409             /* Use whatever default there is. */
 410             return FALSE;
 411     }
 412     return TRUE;
 413 }
 414
 415 void
 416 download_handle_finished(WebKitDownload *download, gpointer data)
 417 {
 418     downloads--;
 419 }
 420
 421 void
 422 download_handle_start(WebKitWebView *web_view, WebKitDownload *download,
 423                       gpointer data)
 424 {
 425     g_signal_connect(G_OBJECT(download), "decide-destination",
 426                      G_CALLBACK(download_handle), data);
 427 }
 428
 429 gboolean
 430 download_handle(WebKitDownload *download, gchar *suggested_filename, gpointer data)
 431 {
 432     gchar *sug_clean, *path, *path2 = NULL, *uri;
 433     GtkToolItem *tb;
 434     int suffix = 1;
 435     size_t i;
 436
 437     sug_clean = g_strdup(suggested_filename);
 438     for (i = 0; i < strlen(sug_clean); i++)
 439         if (sug_clean[i] == G_DIR_SEPARATOR)
 440             sug_clean[i] = '_';
 441
 442     path = g_build_filename(download_dir, sug_clean, NULL);
 443     path2 = g_strdup(path);
 444     while (g_file_test(path2, G_FILE_TEST_EXISTS) && suffix < 1000)
 445     {
 446         g_free(path2);
 447
 448         path2 = g_strdup_printf("%s.%d", path, suffix);
 449         suffix++;
 450     }
 451
 452     if (suffix == 1000)
 453     {
 454         fprintf(stderr, __NAME__": Suffix reached limit for download.\n");
 455         webkit_download_cancel(download);
 456     }
 457     else
 458     {
 459         uri = g_filename_to_uri(path2, NULL, NULL);
 460         webkit_download_set_destination(download, uri);
 461         g_free(uri);
 462
 463         tb = gtk_tool_button_new(NULL, NULL);
 464         gtk_tool_button_set_icon_name(GTK_TOOL_BUTTON(tb), "gtk-delete");
 465         gtk_tool_button_set_label(GTK_TOOL_BUTTON(tb), sug_clean);
 466         gtk_toolbar_insert(GTK_TOOLBAR(dm.toolbar), tb, 0);
 467         gtk_widget_show_all(dm.win);
 468
 469         g_signal_connect(G_OBJECT(download), "notify::estimated-progress",
 470                          G_CALLBACK(changed_download_progress), tb);
 471
 472         downloads++;
 473         g_signal_connect(G_OBJECT(download), "finished",
 474                          G_CALLBACK(download_handle_finished), NULL);
 475
 476         g_object_ref(download);
 477         g_signal_connect(G_OBJECT(tb), "clicked",
 478                          G_CALLBACK(downloadmanager_cancel), download);
 479     }
 480
 481     g_free(sug_clean);
 482     g_free(path);
 483     g_free(path2);
 484
 485     /* Propagate -- to whom it may concern. */
 486     return FALSE;
 487 }
 488
 489 void
 490 downloadmanager_cancel(GtkToolButton *tb, gpointer data)
 491 {
 492     WebKitDownload *download = WEBKIT_DOWNLOAD(data);
 493
 494     webkit_download_cancel(download);
 495     g_object_unref(download);
 496
 497     gtk_widget_destroy(GTK_WIDGET(tb));
 498 }
 499
 500 gboolean
 501 downloadmanager_delete(GtkWidget *obj, gpointer data)
 502 {
 503     if (!quit_if_nothing_active())
 504         gtk_widget_hide(dm.win);
 505
 506     return TRUE;
 507 }
 508
 509 void
 510 downloadmanager_setup(void)
 511 {
 512     dm.win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 513     gtk_window_set_type_hint(GTK_WINDOW(dm.win), GDK_WINDOW_TYPE_HINT_DIALOG);
 514     gtk_window_set_default_size(GTK_WINDOW(dm.win), 500, 250);
 515     gtk_window_set_title(GTK_WINDOW(dm.win), __NAME__" - Download Manager");
 516     g_signal_connect(G_OBJECT(dm.win), "delete-event",
 517                      G_CALLBACK(downloadmanager_delete), NULL);
 518     g_signal_connect(G_OBJECT(dm.win), "key-press-event",
 519                      G_CALLBACK(key_downloadmanager), NULL);
 520
 521     dm.toolbar = gtk_toolbar_new();
 522     gtk_orientable_set_orientation(GTK_ORIENTABLE(dm.toolbar),
 523                                    GTK_ORIENTATION_VERTICAL);
 524     gtk_toolbar_set_style(GTK_TOOLBAR(dm.toolbar), GTK_TOOLBAR_BOTH_HORIZ);
 525     gtk_toolbar_set_show_arrow(GTK_TOOLBAR(dm.toolbar), FALSE);
 526
 527     dm.scroll = gtk_scrolled_window_new(NULL, NULL);
 528     gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(dm.scroll),
 529                                    GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
 530     gtk_container_add(GTK_CONTAINER(dm.scroll), dm.toolbar);
 531
 532     gtk_container_add(GTK_CONTAINER(dm.win), dm.scroll);
 533 }
 534
 535 gchar *
 536 ensure_uri_scheme(const gchar *t)
 537 {
 538     gchar *f, *fabs;
 539
 540     f = g_ascii_strdown(t, -1);
 541     if (!g_str_has_prefix(f, "http:") &&
 542         !g_str_has_prefix(f, "https:") &&
 543         !g_str_has_prefix(f, "file:") &&
 544         !g_str_has_prefix(f, "about:"))
 545     {
 546         g_free(f);
 547         fabs = realpath(t, NULL);
 548         if (fabs != NULL)
 549         {
 550             f = g_strdup_printf("file://%s", fabs);
 551             free(fabs);
 552         }
 553         else
 554             f = g_strdup_printf("http://%s", t);
 555         return f;
 556     }
 557     else
 558         return g_strdup(t);
 559 }
 560
 561 void
 562 external_handler_run(GtkAction *action, gpointer data)
 563 {
 564     struct Client *c = (struct Client *)data;
 565     gchar *argv[] = { "lariza-external-handler", "-u", NULL, NULL };
 566     GPid pid;
 567     GError *err = NULL;
 568
 569     (void)action;
 570
 571     argv[2] = c->external_handler_uri;
 572     if (!g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
 573                        &pid, &err))
 574     {
 575         fprintf(stderr, __NAME__": Could not launch key handler: %s\n",
 576                 err->message);
 577         g_error_free(err);
 578     }
 579     else
 580         g_spawn_close_pid(pid);
 581 }
 582
 583 void
 584 grab_environment_configuration(void)
 585 {
 586     const gchar *e;
 587
 588     e = g_getenv(__NAME_UPPERCASE__"_ACCEPTED_LANGUAGE");
 589     if (e != NULL)
 590         accepted_language[0] = g_strdup(e);
 591
 592     e = g_getenv(__NAME_UPPERCASE__"_DOWNLOAD_DIR");
 593     if (e != NULL)
 594         download_dir = g_strdup(e);
 595
 596     e = g_getenv(__NAME_UPPERCASE__"_ENABLE_EXPERIMENTAL_WEBGL");
 597     if (e != NULL)
 598         enable_webgl = TRUE;
 599
 600     e = g_getenv(__NAME_UPPERCASE__"_FIFO_SUFFIX");
 601     if (e != NULL)
 602         fifo_suffix = g_strdup(e);
 603
 604     e = g_getenv(__NAME_UPPERCASE__"_HISTORY_FILE");
 605     if (e != NULL)
 606         history_file = g_strdup(e);
 607
 608     e = g_getenv(__NAME_UPPERCASE__"_HOME_URI");
 609     if (e != NULL)
 610         home_uri = g_strdup(e);
 611
 612     e = g_getenv(__NAME_UPPERCASE__"_USER_AGENT");
 613     if (e != NULL)
 614         user_agent = g_strdup(e);
 615
 616     e = g_getenv(__NAME_UPPERCASE__"_ZOOM");
 617     if (e != NULL)
 618         global_zoom = atof(e);
 619 }
 620
 621 void
 622 hover_web_view(WebKitWebView *web_view, WebKitHitTestResult *ht, guint modifiers,
 623                gpointer data)
 624 {
 625     struct Client *c = (struct Client *)data;
 626
 627     if (!gtk_widget_is_focus(c->location))
 628     {
 629         if (webkit_hit_test_result_context_is_link(ht))
 630         {
 631             gtk_entry_set_text(GTK_ENTRY(c->location),
 632                                webkit_hit_test_result_get_link_uri(ht));
 633
 634             if (c->hover_uri != NULL)
 635                 g_free(c->hover_uri);
 636             c->hover_uri = g_strdup(webkit_hit_test_result_get_link_uri(ht));
 637         }
 638         else
 639         {
 640             gtk_entry_set_text(GTK_ENTRY(c->location),
 641                                webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 642
 643             if (c->hover_uri != NULL)
 644                 g_free(c->hover_uri);
 645             c->hover_uri = NULL;
 646         }
 647     }
 648 }
 649
 650 gboolean
 651 key_common(GtkWidget *widget, GdkEvent *event, gpointer data)
 652 {
 653     struct Client *c = (struct Client *)data;
 654     WebKitWebContext *wc = webkit_web_view_get_context(WEBKIT_WEB_VIEW(c->web_view));
 655     gchar *f;
 656
 657     if (event->type == GDK_KEY_PRESS)
 658     {
 659         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 660         {
 661             switch (((GdkEventKey *)event)->keyval)
 662             {
 663                 case GDK_KEY_q:  /* close window (left hand) */
 664                     gtk_widget_destroy(c->win);
 665                     return TRUE;
 666                 case GDK_KEY_w:  /* home (left hand) */
 667                     f = ensure_uri_scheme(home_uri);
 668                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 669                     g_free(f);
 670                     return TRUE;
 671                 case GDK_KEY_e:  /* new tab (left hand) */
 672                     f = ensure_uri_scheme(home_uri);
 673                     client_new(f, NULL, TRUE);
 674                     g_free(f);
 675                     return TRUE;
 676                 case GDK_KEY_r:  /* reload (left hand) */
 677                     webkit_web_view_reload_bypass_cache(WEBKIT_WEB_VIEW(
 678                                                         c->web_view));
 679                     return TRUE;
 680                 case GDK_KEY_d:  /* download manager (left hand) */
 681                     gtk_widget_show_all(dm.win);
 682                     return TRUE;
 683                 case GDK_KEY_2:  /* search forward (left hand) */
 684                 case GDK_KEY_n:  /* search forward (maybe both hands) */
 685                     search(c, 1);
 686                     return TRUE;
 687                 case GDK_KEY_3:  /* search backward (left hand) */
 688                     search(c, -1);
 689                     return TRUE;
 690                 case GDK_KEY_l:  /* location (BOTH hands) */
 691                     gtk_widget_grab_focus(c->location);
 692                     return TRUE;
 693                 case GDK_KEY_k:  /* initiate search (BOTH hands) */
 694                     gtk_widget_grab_focus(c->location);
 695                     gtk_entry_set_text(GTK_ENTRY(c->location), ":/");
 696                     gtk_editable_set_position(GTK_EDITABLE(c->location), -1);
 697                     return TRUE;
 698                 case GDK_KEY_c:  /* reload trusted certs (left hand) */
 699                     trust_user_certs(wc);
 700                     return TRUE;
 701                 case GDK_KEY_x:  /* launch external handler (left hand) */
 702                     if (c->external_handler_uri != NULL)
 703                         g_free(c->external_handler_uri);
 704                     c->external_handler_uri = g_strdup(
 705                         webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view)));
 706                     external_handler_run(NULL, c);
 707                     return TRUE;
 708             }
 709         }
 710         /* navigate backward (left hand) */
 711         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F2)
 712         {
 713             webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 714             return TRUE;
 715         }
 716         /* navigate forward (left hand) */
 717         else if (((GdkEventKey *)event)->keyval == GDK_KEY_F3)
 718         {
 719             webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 720             return TRUE;
 721         }
 722     }
 723
 724     return FALSE;
 725 }
 726
 727 gboolean
 728 key_downloadmanager(GtkWidget *widget, GdkEvent *event, gpointer data)
 729 {
 730     if (event->type == GDK_KEY_PRESS)
 731     {
 732         if (((GdkEventKey *)event)->state & GDK_MOD1_MASK)
 733         {
 734             switch (((GdkEventKey *)event)->keyval)
 735             {
 736                 case GDK_KEY_d:  /* close window (left hand) */
 737                 case GDK_KEY_q:
 738                     downloadmanager_delete(dm.win, NULL);
 739                     return TRUE;
 740             }
 741         }
 742     }
 743
 744     return FALSE;
 745 }
 746
 747 gboolean
 748 key_location(GtkWidget *widget, GdkEvent *event, gpointer data)
 749 {
 750     struct Client *c = (struct Client *)data;
 751     const gchar *t;
 752     gchar *f;
 753
 754     if (key_common(widget, event, data))
 755         return TRUE;
 756
 757     if (event->type == GDK_KEY_PRESS)
 758     {
 759         switch (((GdkEventKey *)event)->keyval)
 760         {
 761             case GDK_KEY_KP_Enter:
 762             case GDK_KEY_Return:
 763                 gtk_widget_grab_focus(c->web_view);
 764                 t = gtk_entry_get_text(GTK_ENTRY(c->location));
 765                 if (t != NULL && t[0] == ':' && t[1] == '/')
 766                 {
 767                     if (search_text != NULL)
 768                         g_free(search_text);
 769                     search_text = g_strdup(t + 2);  /* XXX whacky */
 770                     search(c, 0);
 771                 }
 772                 else if (!keywords_try_search(WEBKIT_WEB_VIEW(c->web_view), t))
 773                 {
 774                     f = ensure_uri_scheme(t);
 775                     webkit_web_view_load_uri(WEBKIT_WEB_VIEW(c->web_view), f);
 776                     g_free(f);
 777                 }
 778                 return TRUE;
 779             case GDK_KEY_Escape:
 780                 t = webkit_web_view_get_uri(WEBKIT_WEB_VIEW(c->web_view));
 781                 gtk_entry_set_text(GTK_ENTRY(c->location),
 782                                    (t == NULL ? __NAME__ : t));
 783                 return TRUE;
 784         }
 785     }
 786
 787     return FALSE;
 788 }
 789
 790 gboolean
 791 key_web_view(GtkWidget *widget, GdkEvent *event, gpointer data)
 792 {
 793     struct Client *c = (struct Client *)data;
 794     gdouble dx, dy;
 795     gfloat z;
 796
 797     if (key_common(widget, event, data))
 798         return TRUE;
 799
 800     if (event->type == GDK_KEY_PRESS)
 801     {
 802         if (((GdkEventKey *)event)->keyval == GDK_KEY_Escape)
 803         {
 804             webkit_web_view_stop_loading(WEBKIT_WEB_VIEW(c->web_view));
 805             gtk_entry_set_progress_fraction(GTK_ENTRY(c->location), 0);
 806         }
 807     }
 808     else if (event->type == GDK_BUTTON_PRESS)
 809     {
 810         switch (((GdkEventButton *)event)->button)
 811         {
 812             case 2:
 813                 if (c->hover_uri != NULL)
 814                 {
 815                     client_new(c->hover_uri, NULL, TRUE);
 816                     return TRUE;
 817                 }
 818                 break;
 819             case 8:
 820                 webkit_web_view_go_back(WEBKIT_WEB_VIEW(c->web_view));
 821                 return TRUE;
 822             case 9:
 823                 webkit_web_view_go_forward(WEBKIT_WEB_VIEW(c->web_view));
 824                 return TRUE;
 825         }
 826     }
 827     else if (event->type == GDK_SCROLL)
 828     {
 829         if (((GdkEventScroll *)event)->state & GDK_MOD1_MASK ||
 830             ((GdkEventScroll *)event)->state & GDK_CONTROL_MASK)
 831         {
 832             gdk_event_get_scroll_deltas(event, &dx, &dy);
 833             z = webkit_web_view_get_zoom_level(WEBKIT_WEB_VIEW(c->web_view));
 834             z += -dy * 0.1;
 835             z = dx != 0 ? global_zoom : z;
 836             webkit_web_view_set_zoom_level(WEBKIT_WEB_VIEW(c->web_view), z);
 837             return TRUE;
 838         }
 839     }
 840
 841     return FALSE;
 842 }
 843
 844 void
 845 keywords_load(void)
 846 {
 847     GError *err = NULL;
 848     GIOChannel *channel = NULL;
 849     gchar *path = NULL, *buf = NULL;
 850     gchar **tokens = NULL;
 851
 852     keywords = g_hash_table_new(g_str_hash, g_str_equal);
 853
 854     path = g_build_filename(g_get_user_config_dir(), __NAME__, "keywordsearch",
 855                             NULL);
 856     channel = g_io_channel_new_file(path, "r", &err);
 857     if (channel != NULL)
 858     {
 859         while (g_io_channel_read_line(channel, &buf, NULL, NULL, NULL)
 860                == G_IO_STATUS_NORMAL)
 861         {
 862             g_strstrip(buf);
 863             if (buf[0] != '#')
 864             {
 865                 tokens = g_strsplit(buf, " ", 2);
 866                 if (tokens[0] != NULL && tokens[1] != NULL)
 867                     g_hash_table_insert(keywords, g_strdup(tokens[0]),
 868                                         g_strdup(tokens[1]));
 869                 g_strfreev(tokens);
 870             }
 871             g_free(buf);
 872         }
 873         g_io_channel_shutdown(channel, FALSE, NULL);
 874     }
 875     g_free(path);
 876 }
 877
 878 gboolean
 879 keywords_try_search(WebKitWebView *web_view, const gchar *t)
 880 {
 881     gboolean ret = FALSE;
 882     gchar **tokens = NULL;
 883     gchar *val = NULL, *uri = NULL;
 884
 885     tokens = g_strsplit(t, " ", 2);
 886     if (tokens[0] != NULL && tokens[1] != NULL)
 887     {
 888         val = g_hash_table_lookup(keywords, tokens[0]);
 889         if (val != NULL)
 890         {
 891             uri = g_strdup_printf((gchar *)val, tokens[1]);
 892             webkit_web_view_load_uri(web_view, uri);
 893             g_free(uri);
 894             ret = TRUE;
 895         }
 896     }
 897     g_strfreev(tokens);
 898
 899     return ret;
 900 }
 901
 902 gboolean
 903 menu_web_view(WebKitWebView *web_view, WebKitContextMenu *menu, GdkEvent *ev,
 904               WebKitHitTestResult *ht, gpointer data)
 905 {
 906     struct Client *c = (struct Client *)data;
 907     GtkAction *action = NULL;
 908     WebKitContextMenuItem *mi = NULL;
 909     const gchar *uri = NULL;
 910
 911     (void)ev;
 912
 913     if (webkit_hit_test_result_context_is_link(ht))
 914         uri = webkit_hit_test_result_get_link_uri(ht);
 915     else if (webkit_hit_test_result_context_is_image(ht))
 916         uri = webkit_hit_test_result_get_image_uri(ht);
 917     else if (webkit_hit_test_result_context_is_media(ht))
 918         uri = webkit_hit_test_result_get_media_uri(ht);
 919
 920     if (uri != NULL)
 921     {
 922         webkit_context_menu_append(menu, webkit_context_menu_item_new_separator());
 923
 924         if (c->external_handler_uri != NULL)
 925             g_free(c->external_handler_uri);
 926         c->external_handler_uri = g_strdup(uri);
 927         action = gtk_action_new("external_handler", "Open with external handler",
 928                                 NULL, NULL);
 929         g_signal_connect(G_OBJECT(action), "activate",
 930                          G_CALLBACK(external_handler_run), data);
 931         mi = webkit_context_menu_item_new(action);
 932         webkit_context_menu_append(menu, mi);
 933     }
 934
 935     /* FALSE = Show the menu. (TRUE = Don't ever show it.) */
 936     return FALSE;
 937 }
 938
 939 gboolean
 940 quit_if_nothing_active(void)
 941 {
 942     if (clients == 0)
 943     {
 944         if (downloads == 0)
 945         {
 946             gtk_main_quit();
 947             return TRUE;
 948         }
 949         else
 950             gtk_widget_show_all(dm.win);
 951     }
 952
 953     return FALSE;
 954 }
 955
 956 gboolean
 957 remote_msg(GIOChannel *channel, GIOCondition condition, gpointer data)
 958 {
 959     gchar *uri = NULL;
 960
 961     g_io_channel_read_line(channel, &uri, NULL, NULL, NULL);
 962     if (uri)
 963     {
 964         g_strstrip(uri);
 965         client_new(uri, NULL, TRUE);
 966         g_free(uri);
 967     }
 968     return TRUE;
 969 }
 970
 971 void
 972 search(gpointer data, gint direction)
 973 {
 974     struct Client *c = (struct Client *)data;
 975     WebKitWebView *web_view = WEBKIT_WEB_VIEW(c->web_view);
 976     WebKitFindController *fc = webkit_web_view_get_find_controller(web_view);
 977
 978     if (search_text == NULL)
 979         return;
 980
 981     switch (direction)
 982     {
 983         case 0:
 984             webkit_find_controller_search(fc, search_text,
 985                                           WEBKIT_FIND_OPTIONS_CASE_INSENSITIVE |
 986                                           WEBKIT_FIND_OPTIONS_WRAP_AROUND,
 987                                           G_MAXUINT);
 988             break;
 989         case 1:
 990             webkit_find_controller_search_next(fc);
 991             break;
 992         case -1:
 993             webkit_find_controller_search_previous(fc);
 994             break;
 995     }
 996 }
 997
 998 void
 999 show_web_view(WebKitWebView *web_view, gpointer data)
1000 {
1001     struct Client *c = (struct Client *)data;
1002
1003     (void)web_view;
1004
1005     gtk_widget_grab_focus(c->web_view);
1006     gtk_widget_show_all(c->win);
1007 }
1008
1009 Window
1010 tabbed_launch(void)
1011 {
1012     gint tabbed_stdout;
1013     GIOChannel *tabbed_stdout_channel;
1014     GError *err = NULL;
1015     gchar *output = NULL;
1016     char *argv[] = { "tabbed", "-c", "-d", "-p", "s1", "-n", __NAME__, NULL };
1017     Window plug_into;
1018
1019     if (!g_spawn_async_with_pipes(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL,
1020                                   NULL, NULL, NULL, &tabbed_stdout, NULL,
1021                                   &err))
1022     {
1023         fprintf(stderr, __NAME__": Could not launch tabbed: %s\n", err->message);
1024         g_error_free(err);
1025         return 0;
1026     }
1027
1028     tabbed_stdout_channel = g_io_channel_unix_new(tabbed_stdout);
1029     if (tabbed_stdout_channel == NULL)
1030     {
1031         fprintf(stderr, __NAME__": Could open tabbed's stdout\n");
1032         return 0;
1033     }
1034     g_io_channel_read_line(tabbed_stdout_channel, &output, NULL, NULL, NULL);
1035     g_io_channel_shutdown(tabbed_stdout_channel, FALSE, NULL);
1036     if (output == NULL)
1037     {
1038         fprintf(stderr, __NAME__": Could not read XID from tabbed\n");
1039         return 0;
1040     }
1041     g_strstrip(output);
1042     plug_into = strtol(output, NULL, 16);
1043     g_free(output);
1044     if (plug_into == 0)
1045         fprintf(stderr, __NAME__": The XID from tabbed is 0\n");
1046     return plug_into;
1047 }
1048
1049 void
1050 trust_user_certs(WebKitWebContext *wc)
1051 {
1052     GTlsCertificate *cert;
1053     const gchar *basedir, *file, *absfile;
1054     GDir *dir;
1055
1056     basedir = g_build_filename(g_get_user_config_dir(), __NAME__, "certs", NULL);
1057     dir = g_dir_open(basedir, 0, NULL);
1058     if (dir != NULL)
1059     {
1060         file = g_dir_read_name(dir);
1061         while (file != NULL)
1062         {
1063             absfile = g_build_filename(g_get_user_config_dir(), __NAME__, "certs",
1064                                        file, NULL);
1065             cert = g_tls_certificate_new_from_file(absfile, NULL);
1066             if (cert == NULL)
1067                 fprintf(stderr, __NAME__": Could not load trusted cert '%s'\n", file);
1068             else
1069                 webkit_web_context_allow_tls_certificate_for_host(wc, cert, file);
1070             file = g_dir_read_name(dir);
1071         }
1072         g_dir_close(dir);
1073     }
1074 }
1075
1076
1077 int
1078 main(int argc, char **argv)
1079 {
1080     gchar *c;
1081     int opt, i;
1082
1083     gtk_init(&argc, &argv);
1084     webkit_web_context_set_process_model(webkit_web_context_get_default(),
1085         WEBKIT_PROCESS_MODEL_MULTIPLE_SECONDARY_PROCESSES);
1086
1087     grab_environment_configuration();
1088
1089     while ((opt = getopt(argc, argv, "e:CT")) != -1)
1090     {
1091         switch (opt)
1092         {
1093             case 'e':
1094                 embed = atol(optarg);
1095                 tabbed_automagic = FALSE;
1096                 break;
1097             case 'C':
1098                 cooperative_instances = FALSE;
1099                 break;
1100             case 'T':
1101                 tabbed_automagic = FALSE;
1102                 break;
1103             default:
1104                 fprintf(stderr, "Usage: "__NAME__" [OPTION]... [URI]...\n");
1105                 exit(EXIT_FAILURE);
1106         }
1107     }
1108
1109     keywords_load();
1110     if (cooperative_instances)
1111         cooperation_setup();
1112     downloadmanager_setup();
1113
1114     if (tabbed_automagic && !(cooperative_instances && !cooperative_alone))
1115         embed = tabbed_launch();
1116
1117     if (!cooperative_instances || cooperative_alone)
1118     {
1119         c = g_build_filename(g_get_user_config_dir(), __NAME__, "web_extensions",
1120                              NULL);
1121         webkit_web_context_set_web_extensions_directory(
1122             webkit_web_context_get_default(), c
1123         );
1124     }
1125
1126     if (optind >= argc)
1127         client_new(home_uri, NULL, TRUE);
1128     else
1129     {
1130         for (i = optind; i < argc; i++)
1131             client_new(argv[i], NULL, TRUE);
1132     }
1133
1134     if (!cooperative_instances || cooperative_alone)
1135         gtk_main();
1136     exit(EXIT_SUCCESS);
1137 }