surf.c

   1 /* See LICENSE file for copyright and license details.
   2  *
   3  * To understand surf, start reading main().
   4  */
   5 #include <signal.h>
   6 #include <X11/X.h>
   7 #include <X11/Xatom.h>
   8 #include <gtk/gtk.h>
   9 #include <gdk/gdkx.h>
  10 #include <gdk/gdk.h>
  11 #include <gdk/gdkkeysyms.h>
  12 #include <string.h>
  13 #include <sys/types.h>
  14 #include <sys/wait.h>
  15 #include <unistd.h>
  16 #include <stdlib.h>
  17 #include <stdio.h>
  18 #include <webkit/webkit.h>
  19 #include <glib/gstdio.h>
  20 #include <JavaScriptCore/JavaScript.h>
  21 #include <sys/file.h>
  22
  23 #define LENGTH(x)               (sizeof x / sizeof x[0])
  24 #define CLEANMASK(mask)         (mask & ~(GDK_MOD2_MASK))
  25
  26 typedef union Arg Arg;
  27 union Arg {
  28         gboolean b;
  29         gint i;
  30         const void *v;
  31 };
  32
  33 typedef struct Client {
  34         GtkWidget *win, *scroll, *vbox, *indicator;
  35         GtkWidget **items;
  36         WebKitWebView *view;
  37         WebKitDownload *download;
  38         char *title, *linkhover;
  39         const char *uri, *needle;
  40         gint progress;
  41         struct Client *next;
  42         gboolean zoomed;
  43 } Client;
  44
  45 typedef struct {
  46         char *label;
  47         void (*func)(Client *c, const Arg *arg);
  48         const Arg arg;
  49 } Item;
  50
  51 typedef struct {
  52         guint mod;
  53         guint keyval;
  54         void (*func)(Client *c, const Arg *arg);
  55         const Arg arg;
  56 } Key;
  57
  58 static Display *dpy;
  59 static Atom uriprop, findprop;
  60 static Client *clients = NULL;
  61 static GdkNativeWindow embed = 0;
  62 static gboolean showxid = FALSE;
  63 static int ignorexprop = 0;
  64 static char winid[64];
  65 static char *progname;
  66 static gboolean loadimage = 1, plugin = 1, script = 1;
  67
  68 static char *buildpath(const char *path);
  69 static void cleanup(void);
  70 static void clipboard(Client *c, const Arg *arg);
  71 static void context(WebKitWebView *v, GtkMenu *m, Client *c);
  72 static char *copystr(char **str, const char *src);
  73 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f, Client *c);
  74 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c);
  75 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c);
  76 static void destroyclient(Client *c);
  77 static void destroywin(GtkWidget* w, Client *c);
  78 static void die(char *str);
  79 static void download(Client *c, const Arg *arg);
  80 static void drawindicator(Client *c);
  81 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
  82 static void find(Client *c, const Arg *arg);
  83 static const char *getatom(Client *c, Atom a);
  84 static const char *getcookies(SoupURI *uri);
  85 static char *geturi(Client *c);
  86 void gotheaders(SoupMessage *msg, gpointer user_data);
  87 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
  88 static void itemclick(GtkMenuItem *mi, Client *c);
  89 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
  90 static void linkhover(WebKitWebView *v, const char* t, const char* l, Client *c);
  91 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
  92 static void loaduri(Client *c, const Arg *arg);
  93 static void navigate(Client *c, const Arg *arg);
  94 static Client *newclient(void);
  95 static void newwindow(Client *c, const Arg *arg);
  96 static void newrequest(SoupSession *s, SoupMessage *msg, gpointer v);
  97 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
  98 static void print(Client *c, const Arg *arg);
  99 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event, gpointer d);
 100 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 101 static void reload(Client *c, const Arg *arg);
 102 static void resize(GtkWidget *w, GtkAllocation *a, Client *c);
 103 static void scroll(Client *c, const Arg *arg);
 104 static void setatom(Client *c, Atom a, const char *v);
 105 static void setcookie(SoupCookie *c);
 106 static void setup(void);
 107 static void sigchld(int unused);
 108 static void source(Client *c, const Arg *arg);
 109 static void spawn(Client *c, const Arg *arg);
 110 static void stop(Client *c, const Arg *arg);
 111 static void titlechange(WebKitWebView *v, WebKitWebFrame* frame, const char* title, Client *c);
 112 static void update(Client *c);
 113 static void updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c);
 114 static void updatewinid(Client *c);
 115 static void usage(void);
 116 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c);
 117 static void zoom(Client *c, const Arg *arg);
 118
 119 /* configuration, allows nested code to access above variables */
 120 #include "config.h"
 121
 122 char *
 123 buildpath(const char *path) {
 124         char *apath, *p;
 125         FILE *f;
 126
 127         /* creating directory */
 128         if(path[0] == '/')
 129                 apath = g_strdup(path);
 130         else
 131                 apath = g_strconcat(g_get_home_dir(), "/", path, NULL);
 132         if((p = strrchr(apath, '/'))) {
 133                 *p = '\0';
 134                 g_mkdir_with_parents(apath, 0755);
 135                 *p = '/';
 136         }
 137         /* creating file (gives error when apath ends with "/") */
 138         if((f = g_fopen(apath, "a")))
 139                 fclose(f);
 140         return apath;
 141 }
 142
 143 void
 144 cleanup(void) {
 145         while(clients)
 146                 destroyclient(clients);
 147         g_free(cookiefile);
 148         g_free(dldir);
 149         g_free(scriptfile);
 150         g_free(stylefile);
 151 }
 152
 153 void
 154 clipboard(Client *c, const Arg *arg) {
 155         gboolean paste = *(gboolean *)arg;
 156
 157         if(paste)
 158                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 159         else
 160                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 161 }
 162
 163 void
 164 context(WebKitWebView *v, GtkMenu *m, Client *c) {
 165         int i;
 166         GtkContainer *parent;
 167
 168         gtk_widget_hide_all(GTK_WIDGET(m));
 169         gtk_widget_show(GTK_WIDGET(m));
 170         for(i = 0; i < LENGTH(items); i++) {
 171                 parent = GTK_CONTAINER(gtk_widget_get_parent(c->items[i]));
 172                 if(parent)
 173                         gtk_container_remove(parent, c->items[i]);
 174                 gtk_menu_shell_append(GTK_MENU_SHELL(m), c->items[i]);
 175                 gtk_widget_show(c->items[i]);
 176         }
 177 }
 178
 179 char *
 180 copystr(char **str, const char *src) {
 181         char *tmp;
 182         tmp = g_strdup(src);
 183
 184         if(str && *str) {
 185                 g_free(*str);
 186                 *str = tmp;
 187         }
 188         return tmp;
 189 }
 190
 191 WebKitWebView *
 192 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 193         Client *n = newclient();
 194         return n->view;
 195 }
 196
 197 gboolean
 198 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 199         if(!webkit_web_view_can_show_mime_type(v, m)) {
 200                 webkit_web_policy_decision_download(p);
 201                 return TRUE;
 202         }
 203         return FALSE;
 204 }
 205
 206 gboolean
 207 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r, WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p, Client *c) {
 208         Arg arg;
 209
 210         if(webkit_web_navigation_action_get_reason(n) == WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 211                 webkit_web_policy_decision_ignore(p);
 212                 arg.v = (void *)webkit_network_request_get_uri(r);
 213                 newwindow(NULL, &arg);
 214                 return TRUE;
 215         }
 216         return FALSE;
 217 }
 218
 219 void
 220 destroyclient(Client *c) {
 221         int i;
 222         Client *p;
 223
 224         gtk_widget_destroy(c->indicator);
 225         gtk_widget_destroy(GTK_WIDGET(c->view));
 226         gtk_widget_destroy(c->scroll);
 227         gtk_widget_destroy(c->vbox);
 228         gtk_widget_destroy(c->win);
 229         for(i = 0; i < LENGTH(items); i++)
 230                 gtk_widget_destroy(c->items[i]);
 231         free(c->items);
 232
 233         for(p = clients; p && p->next != c; p = p->next);
 234         if(p)
 235                 p->next = c->next;
 236         else
 237                 clients = c->next;
 238         free(c);
 239         if(clients == NULL)
 240                 gtk_main_quit();
 241 }
 242
 243 void
 244 destroywin(GtkWidget* w, Client *c) {
 245         destroyclient(c);
 246 }
 247
 248 void
 249 die(char *str) {
 250         fputs(str, stderr);
 251         exit(EXIT_FAILURE);
 252 }
 253
 254 void
 255 download(Client *c, const Arg *arg) {
 256         char *uri;
 257         WebKitNetworkRequest *r;
 258         WebKitDownload       *dl;
 259
 260         if(arg->v)
 261                 uri = (char *)arg->v;
 262         else
 263                 uri = c->linkhover ? c->linkhover : geturi(c);
 264         r = webkit_network_request_new(uri);
 265         dl = webkit_download_new(r);
 266         initdownload(c->view, dl, c);
 267         webkit_download_start(c->download);
 268 }
 269
 270 void
 271 drawindicator(Client *c) {
 272         gint width;
 273         const char *uri;
 274         GtkWidget *w;
 275         GdkGC *gc;
 276         GdkColor fg;
 277
 278         uri = getatom(c, uriprop);
 279         w = c->indicator;
 280         width = c->progress * w->allocation.width / 100;
 281         gc = gdk_gc_new(w->window);
 282         gdk_color_parse(strstr(uri, "https://") == uri ?
 283                         progress_trust : progress, &fg);
 284         gdk_gc_set_rgb_fg_color(gc, &fg);
 285         gdk_draw_rectangle(w->window,
 286                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 287                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 288         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 289                         w->allocation.height);
 290         g_object_unref(gc);
 291 }
 292
 293 gboolean
 294 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 295         drawindicator(c);
 296         return TRUE;
 297 }
 298
 299 void
 300 find(Client *c, const Arg *arg) {
 301         const char *s;
 302
 303         s = getatom(c, findprop);
 304         gboolean forward = *(gboolean *)arg;
 305         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 306 }
 307
 308 const char *
 309 getcookies(SoupURI *uri) {
 310         const char *c;
 311         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, TRUE);
 312         c = soup_cookie_jar_get_cookies(j, uri, TRUE);
 313         g_object_unref(j);
 314         return c;
 315 }
 316
 317 const char *
 318 getatom(Client *c, Atom a) {
 319         static char buf[BUFSIZ];
 320         Atom adummy;
 321         int idummy;
 322         unsigned long ldummy;
 323         unsigned char *p = NULL;
 324
 325         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 326                         a, 0L, BUFSIZ, False, XA_STRING,
 327                         &adummy, &idummy, &ldummy, &ldummy, &p);
 328         if(p)
 329                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 330         else
 331                 buf[0] = '\0';
 332         XFree(p);
 333         return buf;
 334 }
 335
 336 char *
 337 geturi(Client *c) {
 338         char *uri;
 339
 340         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 341                 uri = "about:blank";
 342         return uri;
 343 }
 344
 345 void
 346 gotheaders(SoupMessage *msg, gpointer v) {
 347         SoupURI *uri;
 348         GSList *l, *p;
 349
 350         uri = soup_message_get_uri(msg);
 351         for(p = l = soup_cookies_from_response(msg); p;
 352                 p = g_slist_next(p))  {
 353                 setcookie((SoupCookie *)p->data);
 354         }
 355         soup_cookies_free(l);
 356 }
 357
 358 gboolean
 359 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 360         const char *filename;
 361         char *uri;
 362         WebKitWebBackForwardList *h;
 363         WebKitWebHistoryItem *i;
 364
 365         c->download = o;
 366         filename = webkit_download_get_suggested_filename(o);
 367         if(!strcmp("", filename))
 368                 filename = "index.html";
 369         uri = g_strconcat("file://", dldir, "/", filename, NULL);
 370         webkit_download_set_destination_uri(c->download, uri);
 371         c->progress = 0;
 372         h = webkit_web_view_get_back_forward_list(c->view);
 373         i = webkit_web_history_item_new_with_data(webkit_download_get_uri(c->download), filename);
 374         webkit_web_back_forward_list_add_item(h, i);
 375         g_signal_connect(c->download, "notify::progress", G_CALLBACK(updatedownload), c);
 376         g_signal_connect(c->download, "notify::status", G_CALLBACK(updatedownload), c);
 377
 378         c->title = copystr(&c->title, filename);
 379         update(c);
 380         return TRUE;
 381 }
 382
 383 void
 384 itemclick(GtkMenuItem *mi, Client *c) {
 385         int i;
 386         const char *label;
 387
 388         label = gtk_menu_item_get_label(mi);
 389         for(i = 0; i < LENGTH(items); i++)
 390                 if(!strcmp(items[i].label, label))
 391                         items[i].func(c, &(items[i].arg));
 392 }
 393
 394 gboolean
 395 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 396         guint i;
 397         gboolean processed = FALSE;
 398
 399         updatewinid(c);
 400         for(i = 0; i < LENGTH(keys); i++) {
 401                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 402                                 && CLEANMASK(ev->state) == keys[i].mod
 403                                 && keys[i].func) {
 404                         keys[i].func(c, &(keys[i].arg));
 405                         processed = TRUE;
 406                 }
 407         }
 408         return processed;
 409 }
 410
 411 void
 412 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 413         if(l)
 414                 c->linkhover = copystr(&c->linkhover, l);
 415         else if(c->linkhover) {
 416                 free(c->linkhover);
 417                 c->linkhover = NULL;
 418         }
 419         update(c);
 420 }
 421
 422 void
 423 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 424         if(c->download)
 425                 stop(c, NULL);
 426         switch(webkit_web_view_get_load_status (c->view)) {
 427         case WEBKIT_LOAD_COMMITTED:
 428                 setatom(c, uriprop, geturi(c));
 429                 break;
 430         case WEBKIT_LOAD_FINISHED:
 431                 c->progress = 0;
 432                 update(c);
 433                 break;
 434         default:
 435                 break;
 436         }
 437 }
 438
 439 void
 440 loaduri(Client *c, const Arg *arg) {
 441         char *u;
 442         const char *uri = (char *)arg->v;
 443         Arg a = { .b = FALSE };
 444
 445         if(strcmp(uri, "") == 0)
 446                 return;
 447         u = g_strrstr(uri, "://") ? g_strdup(uri)
 448                 : g_strdup_printf("http://%s", uri);
 449         /* prevents endless loop */
 450         if(c->uri && strcmp(u, c->uri) == 0) {
 451                 reload(c, &a);
 452         }
 453         else {
 454                 webkit_web_view_load_uri(c->view, u);
 455                 c->progress = 0;
 456                 c->title = copystr(&c->title, u);
 457                 g_free(u);
 458                 update(c);
 459         }
 460 }
 461
 462 void
 463 navigate(Client *c, const Arg *arg) {
 464         int steps = *(int *)arg;
 465         webkit_web_view_go_back_or_forward(c->view, steps);
 466 }
 467
 468 Client *
 469 newclient(void) {
 470         int i;
 471         Client *c;
 472         WebKitWebSettings *settings;
 473         GdkGeometry hints = { 1, 1 };
 474         char *uri, *ua;
 475
 476         if(!(c = calloc(1, sizeof(Client))))
 477                 die("Cannot malloc!\n");
 478         /* Window */
 479         if(embed) {
 480                 c->win = gtk_plug_new(embed);
 481         }
 482         else {
 483                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 484                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 485                  * is always correct, so we should still call this function.
 486                  * But when doing so, we *must* differentiate between a
 487                  * WM_CLASS and a resource on the window.  By convention, the
 488                  * window class (WM_CLASS) is capped, while the resource is in
 489                  * lowercase.   Both these values come as a pair.
 490                  */
 491                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "surf");
 492
 493                 /* TA:  20091214:  And set the role here as well -- so that
 494                  * sessions can pick this up.
 495                  */
 496                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 497         }
 498         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 499         g_signal_connect(G_OBJECT(c->win), "destroy", G_CALLBACK(destroywin), c);
 500         g_signal_connect(G_OBJECT(c->win), "key-press-event", G_CALLBACK(keypress), c);
 501         g_signal_connect(G_OBJECT(c->win), "size-allocate", G_CALLBACK(resize), c);
 502
 503         if(!(c->items = calloc(1, sizeof(GtkWidget *) * LENGTH(items))))
 504                 die("Cannot malloc!\n");
 505
 506         /* contextmenu */
 507         for(i = 0; i < LENGTH(items); i++) {
 508                 c->items[i] = gtk_menu_item_new_with_label(items[i].label);
 509                 g_signal_connect(G_OBJECT(c->items[i]), "activate",
 510                                 G_CALLBACK(itemclick), c);
 511         }
 512
 513         /* VBox */
 514         c->vbox = gtk_vbox_new(FALSE, 0);
 515
 516         /* Scrolled Window */
 517         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 518         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 519                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 520
 521         /* Webview */
 522         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 523         g_signal_connect(G_OBJECT(c->view), "title-changed", G_CALLBACK(titlechange), c);
 524         g_signal_connect(G_OBJECT(c->view), "hovering-over-link", G_CALLBACK(linkhover), c);
 525         g_signal_connect(G_OBJECT(c->view), "create-web-view", G_CALLBACK(createwindow), c);
 526         g_signal_connect(G_OBJECT(c->view), "new-window-policy-decision-requested", G_CALLBACK(decidewindow), c);
 527         g_signal_connect(G_OBJECT(c->view), "mime-type-policy-decision-requested", G_CALLBACK(decidedownload), c);
 528         g_signal_connect(G_OBJECT(c->view), "download-requested", G_CALLBACK(initdownload), c);
 529         g_signal_connect(G_OBJECT(c->view), "window-object-cleared", G_CALLBACK(windowobjectcleared), c);
 530         g_signal_connect(G_OBJECT(c->view), "populate-popup", G_CALLBACK(context), c);
 531         g_signal_connect(G_OBJECT(c->view), "notify::load-status", G_CALLBACK(loadstatuschange), c);
 532         g_signal_connect(G_OBJECT(c->view), "notify::progress", G_CALLBACK(progresschange), c);
 533
 534         /* Indicator */
 535         c->indicator = gtk_drawing_area_new();
 536         gtk_widget_set_size_request(c->indicator, 0, 2);
 537         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 538                         G_CALLBACK (exposeindicator), c);
 539
 540         /* Arranging */
 541         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 542         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 543         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 544         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 545
 546         /* Setup */
 547         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE, FALSE, 0, GTK_PACK_START);
 548         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE, TRUE, 0, GTK_PACK_START);
 549         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 550         gtk_widget_show(c->vbox);
 551         gtk_widget_show(c->indicator);
 552         gtk_widget_show(c->scroll);
 553         gtk_widget_show(GTK_WIDGET(c->view));
 554         gtk_widget_show(c->win);
 555         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints, GDK_HINT_MIN_SIZE);
 556         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 557         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 558         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 559         settings = webkit_web_view_get_settings(c->view);
 560         if(!(ua = getenv("SURF_USERAGENT")))
 561                 ua = useragent;
 562         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 563         uri = g_strconcat("file://", stylefile, NULL);
 564         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 565         g_object_set(G_OBJECT(settings), "auto-load-images", loadimage, NULL);
 566         g_object_set(G_OBJECT(settings), "enable-plugins", plugin, NULL);
 567         g_object_set(G_OBJECT(settings), "enable-scripts", script, NULL);
 568         g_free(uri);
 569         setatom(c, findprop, "");
 570         setatom(c, uriprop, "");
 571
 572         c->download = NULL;
 573         c->title = NULL;
 574         c->next = clients;
 575         clients = c;
 576         if(showxid) {
 577                 gdk_display_sync(gtk_widget_get_display(c->win));
 578                 printf("%u\n", (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 579                 fflush(NULL);
 580         }
 581         return c;
 582 }
 583
 584 void
 585 newrequest(SoupSession *s, SoupMessage *msg, gpointer v) {
 586         SoupMessageHeaders *h = msg->request_headers;
 587         SoupURI *uri;
 588         const char *c;
 589
 590         soup_message_headers_remove(h, "Cookie");
 591         uri = soup_message_get_uri(msg);
 592         if((c = getcookies(uri))) {
 593                 soup_message_headers_append(h, "Cookie", c);
 594         }
 595         g_signal_connect_after(G_OBJECT(msg), "got-headers", G_CALLBACK(gotheaders), NULL);
 596 }
 597
 598 void
 599 newwindow(Client *c, const Arg *arg) {
 600         guint i = 0;
 601         const char *cmd[10], *uri;
 602         const Arg a = { .v = (void *)cmd };
 603         char tmp[64];
 604
 605         cmd[i++] = progname;
 606         if(embed) {
 607                 cmd[i++] = "-e";
 608                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 609                 cmd[i++] = tmp;
 610         }
 611         if(!script)
 612                 cmd[i++] = "-s";
 613         if(!plugin)
 614                 cmd[i++] = "-p";
 615         if(!loadimage)
 616                 cmd[i++] = "-i";
 617         if(showxid)
 618                 cmd[i++] = "-x";
 619         cmd[i++] = "--";
 620         uri = arg->v ? (char *)arg->v : c->linkhover;
 621         if(uri)
 622                 cmd[i++] = uri;
 623         cmd[i++] = NULL;
 624         spawn(NULL, &a);
 625 }
 626
 627 void
 628 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 629         Arg arg = {.v = text };
 630         if(text != NULL)
 631                 loaduri((Client *) d, &arg);
 632 }
 633
 634 void
 635 print(Client *c, const Arg *arg) {
 636         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 637 }
 638
 639 GdkFilterReturn
 640 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 641         Client *c = (Client *)d;
 642         XPropertyEvent *ev;
 643         Arg arg;
 644
 645         if(((XEvent *)e)->type == PropertyNotify) {
 646                 ev = &((XEvent *)e)->xproperty;
 647                 if(ignorexprop)
 648                         ignorexprop--;
 649                 else if(ev->state == PropertyNewValue) {
 650                         if(ev->atom == uriprop) {
 651                                 arg.v = getatom(c, uriprop);
 652                                 loaduri(c, &arg);
 653                         }
 654                         else if(ev->atom == findprop) {
 655                                 arg.b = TRUE;
 656                                 find(c, &arg);
 657                         }
 658                         return GDK_FILTER_REMOVE;
 659                 }
 660         }
 661         return GDK_FILTER_CONTINUE;
 662 }
 663
 664 void
 665 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 666         c->progress = webkit_web_view_get_progress(c->view) * 100;
 667         update(c);
 668 }
 669
 670 void
 671 reload(Client *c, const Arg *arg) {
 672         gboolean nocache = *(gboolean *)arg;
 673         if(nocache)
 674                  webkit_web_view_reload_bypass_cache(c->view);
 675         else
 676                  webkit_web_view_reload(c->view);
 677 }
 678
 679 void
 680 resize(GtkWidget *w, GtkAllocation *a, Client *c) {
 681         double zoom;
 682
 683         if(c->zoomed)
 684                 return;
 685         zoom = webkit_web_view_get_zoom_level(c->view);
 686         if(a->width * a->height < 300 * 400 && zoom != 0.2)
 687                 webkit_web_view_set_zoom_level(c->view, 0.2);
 688         else if(zoom != 1.0)
 689                 webkit_web_view_set_zoom_level(c->view, 1.0);
 690 }
 691
 692 void
 693 scroll(Client *c, const Arg *arg) {
 694         gdouble v;
 695         GtkAdjustment *a;
 696
 697         a = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(c->scroll));
 698         v = gtk_adjustment_get_value(a);
 699         v += gtk_adjustment_get_step_increment(a) * arg->i;
 700         v = MAX(v, 0.0);
 701         v = MIN(v, gtk_adjustment_get_upper(a) - gtk_adjustment_get_page_size(a));
 702         gtk_adjustment_set_value(a, v);
 703 }
 704
 705 void
 706 setcookie(SoupCookie *c) {
 707         int lock;
 708
 709         lock = open(cookiefile, 0);
 710         flock(lock, LOCK_EX);
 711         SoupDate *e;
 712         SoupCookieJar *j = soup_cookie_jar_text_new(cookiefile, FALSE);
 713         c = soup_cookie_copy(c);
 714         if(c->expires == NULL) {
 715                 e = soup_date_new_from_time_t(time(NULL) + sessiontime);
 716                 soup_cookie_set_expires(c, e);
 717         }
 718         soup_cookie_jar_add_cookie(j, c);
 719         g_object_unref(j);
 720         flock(lock, LOCK_UN);
 721         close(lock);
 722 }
 723
 724 void
 725 setatom(Client *c, Atom a, const char *v) {
 726         XSync(dpy, False);
 727         ignorexprop++;
 728         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window), a,
 729                         XA_STRING, 8, PropModeReplace, (unsigned char *)v,
 730                         strlen(v) + 1);
 731 }
 732
 733 void
 734 setup(void) {
 735         char *proxy;
 736         char *new_proxy;
 737         SoupURI *puri;
 738         SoupSession *s;
 739
 740         /* clean up any zombies immediately */
 741         sigchld(0);
 742         gtk_init(NULL, NULL);
 743         if (!g_thread_supported())
 744                 g_thread_init(NULL);
 745
 746         dpy = GDK_DISPLAY();
 747         s = webkit_get_default_session();
 748         uriprop = XInternAtom(dpy, "_SURF_URI", False);
 749         findprop = XInternAtom(dpy, "_SURF_FIND", False);
 750
 751         /* dirs and files */
 752         cookiefile = buildpath(cookiefile);
 753         dldir = buildpath(dldir);
 754         scriptfile = buildpath(scriptfile);
 755         stylefile = buildpath(stylefile);
 756
 757         /* request handler */
 758         s = webkit_get_default_session();
 759         soup_session_remove_feature_by_type(s, soup_cookie_get_type());
 760         soup_session_remove_feature_by_type(s, soup_cookie_jar_get_type());
 761         g_signal_connect_after(G_OBJECT(s), "request-started", G_CALLBACK(newrequest), NULL);
 762
 763
 764         /* proxy */
 765         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
 766                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
 767                         g_strdup_printf("http://%s", proxy);
 768
 769                 puri = soup_uri_new(new_proxy);
 770                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
 771                 soup_uri_free(puri);
 772                 g_free(new_proxy);
 773         }
 774 }
 775
 776 void
 777 sigchld(int unused) {
 778         if(signal(SIGCHLD, sigchld) == SIG_ERR)
 779                 die("Can't install SIGCHLD handler");
 780         while(0 < waitpid(-1, NULL, WNOHANG));
 781 }
 782
 783 void
 784 source(Client *c, const Arg *arg) {
 785         Arg a = { .b = FALSE };
 786         gboolean s;
 787
 788         s = webkit_web_view_get_view_source_mode(c->view);
 789         webkit_web_view_set_view_source_mode(c->view, !s);
 790         reload(c, &a);
 791 }
 792
 793 void
 794 spawn(Client *c, const Arg *arg) {
 795         if(fork() == 0) {
 796                 if(dpy)
 797                         close(ConnectionNumber(dpy));
 798                 setsid();
 799                 execvp(((char **)arg->v)[0], (char **)arg->v);
 800                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
 801                 perror(" failed");
 802                 exit(0);
 803         }
 804 }
 805
 806 void
 807 stop(Client *c, const Arg *arg) {
 808         if(c->download)
 809                 webkit_download_cancel(c->download);
 810         else
 811                 webkit_web_view_stop_loading(c->view);
 812         c->download = NULL;
 813 }
 814
 815 void
 816 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
 817         c->title = copystr(&c->title, t);
 818         update(c);
 819 }
 820
 821 void
 822 update(Client *c) {
 823         char *t;
 824
 825         if(c->progress != 100)
 826                 t = g_strdup_printf("[%i%%] %s", c->progress, c->title);
 827         else if(c->linkhover)
 828                 t = g_strdup(c->linkhover);
 829         else
 830                 t = g_strdup(c->title);
 831         drawindicator(c);
 832         gtk_window_set_title(GTK_WINDOW(c->win), t);
 833         g_free(t);
 834 }
 835
 836 void
 837 updatedownload(WebKitDownload *o, GParamSpec *pspec, Client *c) {
 838         WebKitDownloadStatus status;
 839
 840         status = webkit_download_get_status(c->download);
 841         if(status == WEBKIT_DOWNLOAD_STATUS_STARTED || status == WEBKIT_DOWNLOAD_STATUS_CREATED) {
 842                 c->progress = (gint)(webkit_download_get_progress(c->download)*100);
 843         }
 844         else
 845                 stop(c, NULL);
 846         update(c);
 847 }
 848
 849 void
 850 updatewinid(Client *c) {
 851         snprintf(winid, LENGTH(winid), "%u",
 852                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 853 }
 854
 855 void
 856 usage(void) {
 857         fputs("surf - simple browser\n", stderr);
 858         die("usage: surf [-e xid] [-i] [-p] [-s] [-v] [-x] [uri]\n");
 859 }
 860
 861 void
 862 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js, JSObjectRef win, Client *c) {
 863         JSStringRef jsscript;
 864         char *script;
 865         JSValueRef exception = NULL;
 866         GError *error;
 867
 868         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 869                 jsscript = JSStringCreateWithUTF8CString(script);
 870                 JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), NULL, 0, &exception);
 871         }
 872 }
 873
 874 void
 875 zoom(Client *c, const Arg *arg) {
 876         c->zoomed = TRUE;
 877         if(arg->i < 0)          /* zoom out */
 878                 webkit_web_view_zoom_out(c->view);
 879         else if(arg->i > 0)     /* zoom in */
 880                 webkit_web_view_zoom_in(c->view);
 881         else {                  /* reset */
 882                 c->zoomed = FALSE;
 883                 webkit_web_view_set_zoom_level(c->view, 1.0);
 884         }
 885 }
 886
 887 int
 888 main(int argc, char *argv[]) {
 889         int i;
 890         Arg arg;
 891
 892         progname = argv[0];
 893         /* command line args */
 894         for(i = 1, arg.v = NULL; i < argc && argv[i][0] == '-' &&
 895                         argv[i][1] != '\0' && argv[i][2] == '\0'; i++) {
 896                 if(!strcmp(argv[i], "--")) {
 897                         i++;
 898                         break;
 899                 }
 900                 switch(argv[i][1]) {
 901                 case 'e':
 902                         if(++i < argc)
 903                                 embed = atoi(argv[i]);
 904                         else
 905                                 usage();
 906                         break;
 907                 case 'i':
 908                         loadimage = 0;
 909                         break;
 910                 case 'p':
 911                         plugin = 0;
 912                         break;
 913                 case 's':
 914                         script = 0;
 915                         break;
 916                 case 'x':
 917                         showxid = TRUE;
 918                         break;
 919                 case 'v':
 920                         die("surf-"VERSION", © 2009 surf engineers, see LICENSE for details\n");
 921                 default:
 922                         usage();
 923                 }
 924         }
 925         if(i < argc)
 926                 arg.v = argv[i];
 927         setup();
 928         newclient();
 929         if(arg.v)
 930                 loaduri(clients, &arg);
 931         gtk_main();
 932         cleanup();
 933         return EXIT_SUCCESS;
 934 }