surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <X11/X.h>
   6 #include <X11/Xatom.h>
   7 #include <gtk/gtk.h>
   8 #include <gdk/gdkx.h>
   9 #include <gdk/gdk.h>
  10 #include <gdk/gdkkeysyms.h>
  11 #include <string.h>
  12 #include <unistd.h>
  13 #include <getopt.h>
  14 #include <stdlib.h>
  15 #include <stdio.h>
  16 #include <webkit/webkit.h>
  17 #include <glib/gstdio.h>
  18
  19 #define LENGTH(x) (sizeof x / sizeof x[0])
  20
  21 Display *dpy;
  22 Atom urlprop;
  23 typedef union Arg Arg;
  24 union Arg {
  25         const gboolean b;
  26         const int i;
  27         const unsigned int ui;
  28         const void *v;
  29 } ;
  30
  31 typedef struct Client {
  32         GtkWidget *win, *scroll, *vbox, *urlbar, *searchbar;
  33         WebKitWebView *view;
  34         WebKitDownload *download;
  35         gchar *title;
  36         gint progress;
  37         struct Client *next;
  38 } Client;
  39
  40 typedef struct Cookie {
  41         char *name;
  42         char *value;
  43         char *domain;
  44         char *path;
  45         struct Cookie *next;
  46 } Cookie;
  47
  48 typedef enum {
  49     BROWSER = 0x0001,
  50     SEARCHBAR = 0x0010,
  51     URLBAR = 0x0100,
  52     ALWAYS = ~0,
  53 } KeyFocus;
  54
  55 typedef struct {
  56         guint mod;
  57         guint keyval;
  58         void (*func)(Client *c, const Arg *arg);
  59         const Arg arg;
  60         KeyFocus focus;
  61 } Key;
  62
  63 SoupCookieJar *cookiejar;
  64 SoupSession *session;
  65 Client *clients = NULL;
  66 Cookie *cookies = NULL;
  67 gboolean embed = FALSE;
  68 gboolean showxid = FALSE;
  69 gboolean ignore_once = FALSE;
  70 extern char *optarg;
  71 extern int optind;
  72
  73 static void cleanup(void);
  74 static void proccookies(SoupMessage *m, Client *c);
  75 static void clipboard(Client *c, const Arg *arg);
  76 static void destroyclient(Client *c);
  77 static void destroywin(GtkWidget* w, Client *c);
  78 static void die(char *str);
  79 static void download(WebKitDownload *o, GParamSpec *pspec, Client *c);
  80 static gboolean initdownload(WebKitWebView *view, WebKitDownload *o, Client *c);
  81 static gchar *geturi(Client *c);
  82 static void hidesearch(Client *c, const Arg *arg);
  83 static void hideurl(Client *c, const Arg *arg);
  84 static gboolean keypress(GtkWidget* w, GdkEventKey *ev, Client *c);
  85 static void linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c);
  86 static void loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c);
  87 static void loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c);
  88 static void loadfile(Client *c, const gchar *f);
  89 static void loaduri(Client *c, const Arg *arg);
  90 static void navigate(Client *c, const Arg *arg);
  91 static Client *newclient();
  92 static WebKitWebView *newwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c);
  93 static void pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d);
  94 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
  95 static void print(Client *c, const Arg *arg);
  96 static void progresschange(WebKitWebView *view, gint p, Client *c);
  97 static void request(SoupSession *s, SoupMessage *m, Client *c);
  98 static void reload(Client *c, const Arg *arg);
  99 static void rereadcookies();
 100 static void setcookie(char *name, char *val, char *dom, char *path, long exp);
 101 static void setup();
 102 static void titlechange(WebKitWebView* view, WebKitWebFrame* frame,
 103                 const gchar* title, Client *c);
 104 static void searchtext(Client *c, const Arg *arg);
 105 static void showsearch(Client *c, const Arg *arg);
 106 static void showurl(Client *c, const Arg *arg);
 107 static void stop(Client *c, const Arg *arg);
 108 static void titlechange(WebKitWebView* view, WebKitWebFrame* frame, const gchar* title, Client *c);
 109 static void usage();
 110 static void updatetitle(Client *c, const gchar *title);
 111 static void zoompage(Client *c, const Arg *arg);
 112
 113 #include "config.h"
 114
 115 void
 116 cleanup(void) {
 117         while(clients)
 118                 destroyclient(clients);
 119 }
 120
 121 void
 122 proccookies(SoupMessage *m, Client *c) {
 123         GSList *l;
 124         SoupCookie *co;
 125         long t;
 126
 127         rereadcookies();
 128         for (l = soup_cookies_from_response(m); l; l = l->next){
 129                 co = (SoupCookie *)l->data;
 130                 t = co->expires ?  soup_date_to_time_t(co->expires) : 0;
 131                 setcookie(co->name, co->value, co->domain, co->value, t);
 132         }
 133         g_slist_free(l);
 134 }
 135
 136 void
 137 clipboard(Client *c, const Arg *arg) {
 138         gboolean paste = *(gboolean *)arg;
 139         if(paste)
 140                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteurl, c);
 141         else
 142                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), webkit_web_view_get_uri(c->view), -1);
 143 }
 144
 145 void
 146 destroyclient(Client *c) {
 147         Client *p;
 148
 149         gtk_widget_destroy(GTK_WIDGET(webkit_web_view_new()));
 150         gtk_widget_destroy(c->scroll);
 151         gtk_widget_destroy(c->urlbar);
 152         gtk_widget_destroy(c->searchbar);
 153         gtk_widget_destroy(c->vbox);
 154         gtk_widget_destroy(c->win);
 155         for(p = clients; p && p->next != c; p = p->next);
 156         if(p)
 157                 p->next = c->next;
 158         else
 159                 clients = c->next;
 160         free(c);
 161         if(clients == NULL)
 162                 gtk_main_quit();
 163 }
 164
 165 void
 166 destroywin(GtkWidget* w, Client *c) {
 167         destroyclient(c);
 168 }
 169
 170 void
 171 die(char *str) {
 172         fputs(str, stderr);
 173         exit(EXIT_FAILURE);
 174 }
 175
 176 void
 177 download(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 178         WebKitDownloadStatus status;
 179
 180         status = webkit_download_get_status(c->download);
 181         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 182                 c->progress = (int)(webkit_download_get_progress(c->download)*100);
 183         }
 184         updatetitle(c, NULL);
 185 }
 186
 187 gboolean
 188 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 189         const gchar *home, *filename;
 190         gchar *uri, *path, *html;
 191
 192         stop(c, NULL);
 193         c->download = o;
 194         home = g_get_home_dir();
 195         filename = webkit_download_get_suggested_filename(o);
 196         path = g_build_filename(home, ".surf", "dl",
 197                         filename, NULL);
 198         uri = g_strconcat("file://", path, NULL);
 199         webkit_download_set_destination_uri(c->download, uri);
 200         c->progress = 0;
 201         g_free(uri);
 202         html = g_strdup_printf("Download <b>%s</b>...", filename);
 203         webkit_web_view_load_html_string(c->view, html,
 204                         webkit_download_get_uri(c->download));
 205         g_signal_connect(c->download, "notify::progress", G_CALLBACK(download), c);
 206         g_signal_connect(c->download, "notify::status", G_CALLBACK(download), c);
 207         webkit_download_start(c->download);
 208         updatetitle(c, filename);
 209         g_free(html);
 210         return TRUE;
 211 }
 212
 213 gchar *
 214 geturi(Client *c) {
 215         gchar *uri;
 216
 217         if(!(uri = (gchar *)webkit_web_view_get_uri(c->view)))
 218                 uri = g_strdup("about:blank");
 219         return uri;
 220 }
 221
 222 void
 223 hidesearch(Client *c, const Arg *arg) {
 224         gtk_widget_hide(c->searchbar);
 225         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 226 }
 227
 228 void
 229 hideurl(Client *c, const Arg *arg) {
 230         gtk_widget_hide(c->urlbar);
 231         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 232 }
 233
 234 gboolean
 235 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 236         unsigned int i, focus;
 237         gboolean processed = FALSE;
 238
 239         if(ev->type != GDK_KEY_PRESS)
 240                 return FALSE;
 241         if(GTK_WIDGET_HAS_FOCUS(c->searchbar))
 242                 focus = SEARCHBAR;
 243         else if(GTK_WIDGET_HAS_FOCUS(c->urlbar))
 244                 focus = URLBAR;
 245         else
 246                 focus = BROWSER;
 247         for(i = 0; i < LENGTH(keys); i++) {
 248                 if(focus & keys[i].focus && ev->keyval == keys[i].keyval &&
 249                                 (ev->state == keys[i].mod || ev->state & keys[i].mod)
 250                                 && keys[i].func) {
 251                         keys[i].func(c, &(keys[i].arg));
 252                         processed = TRUE;
 253                 }
 254         }
 255         return processed;
 256 }
 257
 258 void
 259 linkhover(WebKitWebView* page, const gchar* t, const gchar* l, Client *c) {
 260         if(l)
 261                 gtk_window_set_title(GTK_WINDOW(c->win), l);
 262         else
 263                 updatetitle(c, NULL);
 264 }
 265
 266 void
 267 loadcommit(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 268         gchar *uri;
 269
 270         ignore_once = TRUE;
 271         uri = geturi(c);
 272         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), urlprop,
 273                         XA_STRING, 8, PropModeReplace, (unsigned char *)uri,
 274                         strlen(uri) + 1);
 275 }
 276
 277 void
 278 loadstart(WebKitWebView *view, WebKitWebFrame *f, Client *c) {
 279         c->progress = 0;
 280         updatetitle(c, NULL);
 281 }
 282
 283 void
 284 loadfile(Client *c, const gchar *f) {
 285         GIOChannel *chan = NULL;
 286         GError *e = NULL;
 287         GString *code;
 288         gchar *line, *uri;
 289         Arg arg;
 290
 291         if(strcmp(f, "-") == 0) {
 292                 chan = g_io_channel_unix_new(STDIN_FILENO);
 293                 if (chan) {
 294                         code = g_string_new("");
 295                         while(g_io_channel_read_line(chan, &line, NULL, NULL,
 296                                                 &e) == G_IO_STATUS_NORMAL) {
 297                                 g_string_append(code, line);
 298                                 g_free(line);
 299                         }
 300                         webkit_web_view_load_html_string(c->view, code->str,
 301                                         "file://.");
 302                         g_io_channel_shutdown(chan, FALSE, NULL);
 303                         g_string_free(code, TRUE);
 304                 }
 305                 arg.v = uri = g_strdup("stdin");
 306         }
 307         else {
 308                 arg.v = uri = g_strdup_printf("file://%s", f);
 309                 loaduri(c, &arg);
 310         }
 311         updatetitle(c, uri);
 312         g_free(uri);
 313 }
 314
 315 void
 316 loaduri(Client *c, const Arg *arg) {
 317         gchar *u;
 318         const gchar *uri = (gchar *)arg->v;
 319         if(!uri)
 320                 uri = gtk_entry_get_text(GTK_ENTRY(c->urlbar));
 321         u = g_strrstr(uri, "://") ? g_strdup(uri)
 322                 : g_strdup_printf("http://%s", uri);
 323         webkit_web_view_load_uri(c->view, u);
 324         c->progress = 0;
 325         updatetitle(c, u);
 326         g_free(u);
 327 }
 328
 329 void
 330 navigate(Client *c, const Arg *arg) {
 331         gint steps = *(gint *)arg;
 332         webkit_web_view_go_back_or_forward(c->view, steps);
 333 }
 334
 335 Client *
 336 newclient(void) {
 337         Client *c;
 338         if(!(c = calloc(1, sizeof(Client))))
 339                 die("Cannot malloc!\n");
 340         /* Window */
 341         if(embed) {
 342                 c->win = gtk_plug_new(0);
 343         }
 344         else {
 345                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 346                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 347         }
 348         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 349         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 350         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 351
 352         /* VBox */
 353         c->vbox = gtk_vbox_new(FALSE, 0);
 354
 355         /* scrolled window */
 356         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 357         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 358                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 359
 360         /* webview */
 361         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 362         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 363         g_signal_connect(G_OBJECT(c->view), "load-progress-changed", G_CALLBACK(progresschange), c);
 364         g_signal_connect(G_OBJECT(c->view), "load-committed", G_CALLBACK(loadcommit), c);
 365         g_signal_connect(G_OBJECT(c->view), "load-started", G_CALLBACK(loadstart), c);
 366         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 367         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(newwindow), c);
 368         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 369         g_signal_connect_after(session, "request-started", G_CALLBACK(request), c);
 370
 371         /* urlbar */
 372         c->urlbar = gtk_entry_new();
 373         gtk_entry_set_has_frame(GTK_ENTRY(c->urlbar), FALSE);
 374
 375         /* searchbar */
 376         c->searchbar = gtk_entry_new();
 377         gtk_entry_set_has_frame(GTK_ENTRY(c->searchbar), FALSE);
 378
 379         /* downloadbar */
 380
 381         /* Arranging */
 382         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 383         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 384         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 385         gtk_container_add(GTK_CONTAINER(c->vbox), c->searchbar);
 386         gtk_container_add(GTK_CONTAINER(c->vbox), c->urlbar);
 387
 388         /* Setup */
 389         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->urlbar, FALSE, FALSE, 0, GTK_PACK_START);
 390         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->searchbar, FALSE, FALSE, 0, GTK_PACK_START);
 391         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 392         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 393         gtk_widget_hide_all(c->searchbar);
 394         gtk_widget_hide_all(c->urlbar);
 395         gtk_widget_show(c->vbox);
 396         gtk_widget_show(c->scroll);
 397         gtk_widget_show(GTK_WIDGET(c->view));
 398         gtk_widget_show(c->win);
 399         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 400         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 401         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 402         c->download = NULL;
 403         c->title = NULL;
 404         c->next = clients;
 405         clients = c;
 406         if(showxid)
 407                 printf("%u\n", (unsigned int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 408         return c;
 409 }
 410
 411 WebKitWebView *
 412 newwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 413         Client *n = newclient();
 414         return n->view;
 415 }
 416
 417
 418 void
 419 pasteurl(GtkClipboard *clipboard, const gchar *text, gpointer d) {
 420         Arg arg = {.v = text };
 421         if(text != NULL)
 422                 loaduri((Client *) d, &arg);
 423 }
 424
 425 GdkFilterReturn
 426 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 427         Client *c = (Client *)d;
 428         XPropertyEvent *ev;
 429         Atom adummy;
 430         int idummy;
 431         unsigned long ldummy;
 432         unsigned char *buf = NULL;
 433         Arg arg;
 434
 435         if(((XEvent *)e)->type == PropertyNotify) {
 436                 ev = &((XEvent *)e)->xproperty;
 437                 if(ev->atom == urlprop && ev->state == PropertyNewValue) {
 438                         if(ignore_once)
 439                                ignore_once = FALSE;
 440                         else {
 441                                 XGetWindowProperty(dpy, ev->window, urlprop, 0L, BUFSIZ, False, XA_STRING,
 442                                         &adummy, &idummy, &ldummy, &ldummy, &buf);
 443                                 arg.v = buf;
 444                                 loaduri(c, &arg);
 445                                 XFree(buf);
 446                         }
 447                         return GDK_FILTER_REMOVE;
 448                 }
 449         }
 450         return GDK_FILTER_CONTINUE;
 451 }
 452
 453 void
 454 print(Client *c, const Arg *arg) {
 455         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 456 }
 457
 458 void
 459 progresschange(WebKitWebView* view, gint p, Client *c) {
 460         c->progress = p;
 461         updatetitle(c, NULL);
 462 }
 463
 464 void
 465 request(SoupSession *s, SoupMessage *m, Client *c) {
 466         soup_message_add_header_handler(m, "got-headers", "Set-Cookie",
 467                         G_CALLBACK(proccookies), c);
 468 }
 469
 470 void
 471 reload(Client *c, const Arg *arg) {
 472         gboolean nocache = *(gboolean *)arg;
 473         if(nocache)
 474                  webkit_web_view_reload_bypass_cache(c->view);
 475         else
 476                  webkit_web_view_reload(c->view);
 477 }
 478
 479 void
 480 rereadcookies() {
 481         const gchar *filename, *home;
 482
 483         home = g_get_home_dir();
 484         filename = g_build_filename(home, ".surf", "cookies", NULL);
 485 }
 486
 487 void
 488 setcookie(char *name, char *val, char *dom, char *path, long exp) {
 489
 490 }
 491
 492 void
 493 setup() {
 494         dpy = GDK_DISPLAY();
 495         session = webkit_get_default_session();
 496         urlprop = XInternAtom(dpy, "_SURF_URL", False);
 497 }
 498
 499 void
 500 showsearch(Client *c, const Arg *arg) {
 501         hideurl(c, NULL);
 502         gtk_widget_show(c->searchbar);
 503         gtk_widget_grab_focus(c->searchbar);
 504 }
 505
 506 void
 507 searchtext(Client *c, const Arg *arg) {
 508         gboolean forward = *(gboolean *)arg;
 509         webkit_web_view_search_text(c->view,
 510                         gtk_entry_get_text(GTK_ENTRY(c->searchbar)),
 511                         FALSE,
 512                         forward,
 513                         TRUE);
 514 }
 515
 516 void
 517 showurl(Client *c, const Arg *arg) {
 518         gchar *uri;
 519
 520         hidesearch(c, NULL);
 521         uri = geturi(c);
 522         gtk_entry_set_text(GTK_ENTRY(c->urlbar), uri);
 523         gtk_widget_show(c->urlbar);
 524         gtk_widget_grab_focus(c->urlbar);
 525 }
 526
 527 void
 528 stop(Client *c, const Arg *arg) {
 529         if(c->download)
 530                 webkit_download_cancel(c->download);
 531         else
 532                 webkit_web_view_stop_loading(c->view);
 533         c->download = NULL;
 534 }
 535
 536 void
 537 titlechange(WebKitWebView *v, WebKitWebFrame *f, const gchar *t, Client *c) {
 538         updatetitle(c, t);
 539 }
 540
 541 void
 542 usage() {
 543         fputs("surf - simple browser\n", stderr);
 544         die("usage: surf [-e] [-x] [uri]\n");
 545 }
 546
 547 void
 548 updatetitle(Client *c, const char *title) {
 549         gchar *t;
 550
 551         if(title) {
 552                 if(c->title)
 553                         g_free(c->title);
 554                 c->title = g_strdup(title);
 555         }
 556         if(c->progress == 100)
 557                 t = g_strdup(c->title);
 558         else
 559                 t = g_strdup_printf("%s [%i%%]", c->title, c->progress);
 560         gtk_window_set_title(GTK_WINDOW(c->win), t);
 561         g_free(t);
 562
 563 }
 564
 565 void
 566 zoompage(Client *c, const Arg *arg) {
 567         if(arg->i < 0)          /* zoom out */
 568                 webkit_web_view_zoom_out(c->view);
 569         else if(arg->i > 0)     /* zoom in */
 570                 webkit_web_view_zoom_in(c->view);
 571         else                    /* reset */
 572                 webkit_web_view_set_zoom_level(c->view, 1.0);
 573 }
 574
 575 int main(int argc, char *argv[]) {
 576         SoupSession *s;
 577         Client *c;
 578         int o;
 579         const gchar *home, *filename;
 580         Arg arg;
 581
 582         gtk_init(NULL, NULL);
 583         if (!g_thread_supported())
 584                 g_thread_init(NULL);
 585         setup();
 586         while((o = getopt(argc, argv, "vhxeu:f:")) != -1)
 587                 switch(o) {
 588                 case 'x':
 589                         showxid = TRUE;
 590                         break;
 591                 case 'e':
 592                         showxid = TRUE;
 593                         embed = TRUE;
 594                         break;
 595                 case 'v':
 596                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 597                         break;
 598                 default:
 599                         usage();
 600                 }
 601         if(optind + 1 == argc) {
 602                 c = newclient();
 603                 arg.v = argv[optind];
 604                 if(strchr("./", argv[optind][0]) || strcmp("-", argv[optind]) == 0)
 605                         loadfile(c, argv[optind]);
 606                 else
 607                         loaduri(c, &arg);
 608
 609         }
 610         else if(optind != argc)
 611                 usage();
 612         if(!clients)
 613                 newclient();
 614
 615         /* make dirs */
 616         home = g_get_home_dir();
 617         filename = g_build_filename(home, ".surf", NULL);
 618         g_mkdir_with_parents(filename, 0711);
 619         filename = g_build_filename(home, ".surf", "dl", NULL);
 620         g_mkdir_with_parents(filename, 0755);
 621
 622         /* cookie persistance */
 623         s = webkit_get_default_session();
 624         filename = g_build_filename(home, ".surf", "cookies.jar", NULL);
 625         cookiejar = soup_cookie_jar_text_new(filename, FALSE);
 626         soup_session_add_feature(s, SOUP_SESSION_FEATURE(cookiejar));
 627
 628         gtk_main();
 629         cleanup();
 630         return EXIT_SUCCESS;
 631 }