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 <limits.h>
  17 #include <stdlib.h>
  18 #include <stdio.h>
  19 #include <webkit/webkit.h>
  20 #include <glib/gstdio.h>
  21 #include <JavaScriptCore/JavaScript.h>
  22 #include <sys/file.h>
  23 #include <libgen.h>
  24 #include <stdarg.h>
  25
  26 #include "arg.h"
  27
  28 char *argv0;
  29
  30 #define LENGTH(x)               (sizeof x / sizeof x[0])
  31 #define CLEANMASK(mask)         (mask & (MODKEY|GDK_SHIFT_MASK))
  32 #define COOKIEJAR_TYPE          (cookiejar_get_type ())
  33 #define COOKIEJAR(obj)          (G_TYPE_CHECK_INSTANCE_CAST ((obj), COOKIEJAR_TYPE, CookieJar))
  34
  35 enum { AtomFind, AtomGo, AtomUri, AtomLast };
  36
  37 typedef union Arg Arg;
  38 union Arg {
  39         gboolean b;
  40         gint i;
  41         const void *v;
  42 };
  43
  44 typedef struct Client {
  45         GtkWidget *win, *scroll, *vbox, *indicator;
  46         WebKitWebView *view;
  47         WebKitWebInspector *inspector;
  48         char *title, *linkhover;
  49         const char *uri, *needle;
  50         gint progress;
  51         struct Client *next;
  52         gboolean zoomed, fullscreen, isinspector, sslfailed;
  53 } Client;
  54
  55 typedef struct {
  56         char *label;
  57         void (*func)(Client *c, const Arg *arg);
  58         const Arg arg;
  59 } Item;
  60
  61 typedef struct {
  62         guint mod;
  63         guint keyval;
  64         void (*func)(Client *c, const Arg *arg);
  65         const Arg arg;
  66 } Key;
  67
  68 typedef struct {
  69         SoupCookieJarText parent_instance;
  70         int lock;
  71 } CookieJar;
  72
  73 typedef struct {
  74         SoupCookieJarTextClass parent_class;
  75 } CookieJarClass;
  76
  77 G_DEFINE_TYPE(CookieJar, cookiejar, SOUP_TYPE_COOKIE_JAR_TEXT)
  78
  79 static Display *dpy;
  80 static Atom atoms[AtomLast];
  81 static Client *clients = NULL;
  82 static GdkNativeWindow embed = 0;
  83 static gboolean showxid = FALSE;
  84 static char winid[64];
  85 static gboolean usingproxy = 0;
  86 static char togglestat[5];
  87
  88 static void beforerequest(WebKitWebView *w, WebKitWebFrame *f,
  89                 WebKitWebResource *r, WebKitNetworkRequest *req,
  90                 WebKitNetworkResponse *resp, gpointer d);
  91 static char *buildpath(const char *path);
  92 static gboolean buttonrelease(WebKitWebView *web, GdkEventButton *e,
  93                 GList *gl);
  94 static void cleanup(void);
  95 static void clipboard(Client *c, const Arg *arg);
  96
  97 static void cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
  98                 SoupCookie *new_cookie);
  99 static void cookiejar_finalize(GObject *self);
 100 static SoupCookieJar *cookiejar_new(const char *filename, gboolean read_only);
 101 static void cookiejar_set_property(GObject *self, guint prop_id,
 102                 const GValue *value, GParamSpec *pspec);
 103
 104 static char *copystr(char **str, const char *src);
 105 static WebKitWebView *createwindow(WebKitWebView *v, WebKitWebFrame *f,
 106                 Client *c);
 107 static gboolean decidedownload(WebKitWebView *v, WebKitWebFrame *f,
 108                 WebKitNetworkRequest *r, gchar *m,  WebKitWebPolicyDecision *p,
 109                 Client *c);
 110 static gboolean decidewindow(WebKitWebView *v, WebKitWebFrame *f,
 111                 WebKitNetworkRequest *r, WebKitWebNavigationAction *n,
 112                 WebKitWebPolicyDecision *p, Client *c);
 113 static void destroyclient(Client *c);
 114 static void destroywin(GtkWidget* w, Client *c);
 115 static void die(const char *errstr, ...);
 116 static void drawindicator(Client *c);
 117 static void eval(Client *c, const Arg *arg);
 118 static gboolean exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c);
 119 static void find(Client *c, const Arg *arg);
 120 static void fullscreen(Client *c, const Arg *arg);
 121 static const char *getatom(Client *c, int a);
 122 static void gettogglestat(Client *c);
 123 static char *geturi(Client *c);
 124 static gboolean initdownload(WebKitWebView *v, WebKitDownload *o, Client *c);
 125
 126 static void inspector(Client *c, const Arg *arg);
 127 static WebKitWebView *inspector_new(WebKitWebInspector *i, WebKitWebView *v,
 128                 Client *c);
 129 static gboolean inspector_show(WebKitWebInspector *i, Client *c);
 130 static gboolean inspector_close(WebKitWebInspector *i, Client *c);
 131 static void inspector_finished(WebKitWebInspector *i, Client *c);
 132
 133 static gboolean keypress(GtkWidget *w, GdkEventKey *ev, Client *c);
 134 static void linkhover(WebKitWebView *v, const char* t, const char* l,
 135                 Client *c);
 136 static void loadstatuschange(WebKitWebView *view, GParamSpec *pspec,
 137                 Client *c);
 138 static void loaduri(Client *c, const Arg *arg);
 139 static void navigate(Client *c, const Arg *arg);
 140 static Client *newclient(void);
 141 static void newwindow(Client *c, const Arg *arg, gboolean noembed);
 142 static void pasteuri(GtkClipboard *clipboard, const char *text, gpointer d);
 143 static void populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c);
 144 static void popupactivate(GtkMenuItem *menu, Client *);
 145 static void print(Client *c, const Arg *arg);
 146 static GdkFilterReturn processx(GdkXEvent *xevent, GdkEvent *event,
 147                 gpointer d);
 148 static void progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c);
 149 static void reload(Client *c, const Arg *arg);
 150 static void scroll_h(Client *c, const Arg *arg);
 151 static void scroll_v(Client *c, const Arg *arg);
 152 static void scroll(GtkAdjustment *a, const Arg *arg);
 153 static void setatom(Client *c, int a, const char *v);
 154 static void setup(void);
 155 static void sigchld(int unused);
 156 static void source(Client *c, const Arg *arg);
 157 static void spawn(Client *c, const Arg *arg);
 158 static void stop(Client *c, const Arg *arg);
 159 static void titlechange(WebKitWebView *v, WebKitWebFrame *frame,
 160                 const char *title, Client *c);
 161 static void toggle(Client *c, const Arg *arg);
 162 static void update(Client *c);
 163 static void updatewinid(Client *c);
 164 static void usage(void);
 165 static void windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame,
 166                 JSContextRef js, JSObjectRef win, Client *c);
 167 static void zoom(Client *c, const Arg *arg);
 168
 169 /* configuration, allows nested code to access above variables */
 170 #include "config.h"
 171
 172 static void
 173 beforerequest(WebKitWebView *w, WebKitWebFrame *f, WebKitWebResource *r,
 174                 WebKitNetworkRequest *req, WebKitNetworkResponse *resp,
 175                 gpointer d) {
 176         const gchar *uri = webkit_network_request_get_uri(req);
 177         if(g_str_has_suffix(uri, "/favicon.ico"))
 178                 webkit_network_request_set_uri(req, "about:blank");
 179 }
 180
 181 static char *
 182 buildpath(const char *path) {
 183         char *apath, *p;
 184         FILE *f;
 185
 186         /* creating directory */
 187         if(path[0] == '/') {
 188                 apath = g_strdup(path);
 189         } else if(path[0] == '~') {
 190                 if(path[1] == '/') {
 191                         apath = g_strconcat(g_get_home_dir(), &path[1], NULL);
 192                 } else {
 193                         apath = g_strconcat(g_get_home_dir(), "/",
 194                                         &path[1], NULL);
 195                 }
 196         } else {
 197                 apath = g_strconcat(g_get_current_dir(), "/", path, NULL);
 198         }
 199
 200         if((p = strrchr(apath, '/'))) {
 201                 *p = '\0';
 202                 g_mkdir_with_parents(apath, 0700);
 203                 g_chmod(apath, 0700); /* in case it existed */
 204                 *p = '/';
 205         }
 206         /* creating file (gives error when apath ends with "/") */
 207         if((f = fopen(apath, "a"))) {
 208                 g_chmod(apath, 0600); /* always */
 209                 fclose(f);
 210         }
 211
 212         return apath;
 213 }
 214
 215 static gboolean
 216 buttonrelease(WebKitWebView *web, GdkEventButton *e, GList *gl) {
 217         WebKitHitTestResultContext context;
 218         WebKitHitTestResult *result = webkit_web_view_get_hit_test_result(web,
 219                         e);
 220         Arg arg;
 221
 222         g_object_get(result, "context", &context, NULL);
 223         if(context & WEBKIT_HIT_TEST_RESULT_CONTEXT_LINK) {
 224                 if(e->button == 2) {
 225                         g_object_get(result, "link-uri", &arg.v, NULL);
 226                         newwindow(NULL, &arg, e->state & GDK_CONTROL_MASK);
 227                         return true;
 228                 }
 229         }
 230         return false;
 231 }
 232
 233 static void
 234 cleanup(void) {
 235         while(clients)
 236                 destroyclient(clients);
 237         g_free(cookiefile);
 238         g_free(scriptfile);
 239         g_free(stylefile);
 240 }
 241
 242 static void
 243 cookiejar_changed(SoupCookieJar *self, SoupCookie *old_cookie,
 244                 SoupCookie *new_cookie) {
 245         flock(COOKIEJAR(self)->lock, LOCK_EX);
 246         if(new_cookie && !new_cookie->expires && sessiontime) {
 247                 soup_cookie_set_expires(new_cookie,
 248                                 soup_date_new_from_now(sessiontime));
 249         }
 250         SOUP_COOKIE_JAR_CLASS(cookiejar_parent_class)->changed(self,
 251                         old_cookie, new_cookie);
 252         flock(COOKIEJAR(self)->lock, LOCK_UN);
 253 }
 254
 255 static void
 256 cookiejar_class_init(CookieJarClass *klass) {
 257         SOUP_COOKIE_JAR_CLASS(klass)->changed = cookiejar_changed;
 258         G_OBJECT_CLASS(klass)->get_property =
 259                 G_OBJECT_CLASS(cookiejar_parent_class)->get_property;
 260         G_OBJECT_CLASS(klass)->set_property = cookiejar_set_property;
 261         G_OBJECT_CLASS(klass)->finalize = cookiejar_finalize;
 262         g_object_class_override_property(G_OBJECT_CLASS(klass), 1, "filename");
 263 }
 264
 265 static void
 266 cookiejar_finalize(GObject *self) {
 267         close(COOKIEJAR(self)->lock);
 268         G_OBJECT_CLASS(cookiejar_parent_class)->finalize(self);
 269 }
 270
 271 static void
 272 cookiejar_init(CookieJar *self) {
 273         self->lock = open(cookiefile, 0);
 274 }
 275
 276 static SoupCookieJar *
 277 cookiejar_new(const char *filename, gboolean read_only) {
 278         return g_object_new(COOKIEJAR_TYPE,
 279                             SOUP_COOKIE_JAR_TEXT_FILENAME, filename,
 280                             SOUP_COOKIE_JAR_READ_ONLY, read_only, NULL);
 281 }
 282
 283 static void
 284 cookiejar_set_property(GObject *self, guint prop_id, const GValue *value,
 285                 GParamSpec *pspec) {
 286         flock(COOKIEJAR(self)->lock, LOCK_SH);
 287         G_OBJECT_CLASS(cookiejar_parent_class)->set_property(self, prop_id,
 288                         value, pspec);
 289         flock(COOKIEJAR(self)->lock, LOCK_UN);
 290 }
 291
 292 static void
 293 evalscript(JSContextRef js, char *script, char* scriptname) {
 294         JSStringRef jsscript, jsscriptname;
 295         JSValueRef exception = NULL;
 296
 297         jsscript = JSStringCreateWithUTF8CString(script);
 298         jsscriptname = JSStringCreateWithUTF8CString(scriptname);
 299         JSEvaluateScript(js, jsscript, JSContextGetGlobalObject(js), jsscriptname, 0, &exception);
 300         JSStringRelease(jsscript);
 301         JSStringRelease(jsscriptname);
 302 }
 303
 304 static void
 305 runscript(WebKitWebFrame *frame) {
 306         char *script;
 307         GError *error;
 308
 309         if(g_file_get_contents(scriptfile, &script, NULL, &error)) {
 310                 evalscript(webkit_web_frame_get_global_context(frame), script, scriptfile);
 311         }
 312 }
 313
 314 static void
 315 clipboard(Client *c, const Arg *arg) {
 316         gboolean paste = *(gboolean *)arg;
 317
 318         if(paste)
 319                 gtk_clipboard_request_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), pasteuri, c);
 320         else
 321                 gtk_clipboard_set_text(gtk_clipboard_get(GDK_SELECTION_PRIMARY), c->linkhover ? c->linkhover : geturi(c), -1);
 322 }
 323
 324 static char *
 325 copystr(char **str, const char *src) {
 326         char *tmp;
 327         tmp = g_strdup(src);
 328
 329         if(str && *str) {
 330                 g_free(*str);
 331                 *str = tmp;
 332         }
 333         return tmp;
 334 }
 335
 336 static WebKitWebView *
 337 createwindow(WebKitWebView  *v, WebKitWebFrame *f, Client *c) {
 338         Client *n = newclient();
 339         return n->view;
 340 }
 341
 342 static gboolean
 343 decidedownload(WebKitWebView *v, WebKitWebFrame *f, WebKitNetworkRequest *r,
 344                 gchar *m,  WebKitWebPolicyDecision *p, Client *c) {
 345         if(!webkit_web_view_can_show_mime_type(v, m)) {
 346                 webkit_web_policy_decision_download(p);
 347                 return TRUE;
 348         }
 349         return FALSE;
 350 }
 351
 352 static gboolean
 353 decidewindow(WebKitWebView *view, WebKitWebFrame *f, WebKitNetworkRequest *r,
 354                 WebKitWebNavigationAction *n, WebKitWebPolicyDecision *p,
 355                 Client *c) {
 356         Arg arg;
 357
 358         if(webkit_web_navigation_action_get_reason(n) ==
 359                         WEBKIT_WEB_NAVIGATION_REASON_LINK_CLICKED) {
 360                 webkit_web_policy_decision_ignore(p);
 361                 arg.v = (void *)webkit_network_request_get_uri(r);
 362                 newwindow(NULL, &arg, 0);
 363                 return TRUE;
 364         }
 365         return FALSE;
 366 }
 367
 368 static void
 369 destroyclient(Client *c) {
 370         Client *p;
 371
 372         webkit_web_view_stop_loading(c->view);
 373         gtk_widget_destroy(c->indicator);
 374         gtk_widget_destroy(GTK_WIDGET(c->view));
 375         gtk_widget_destroy(c->scroll);
 376         gtk_widget_destroy(c->vbox);
 377         gtk_widget_destroy(c->win);
 378
 379         for(p = clients; p && p->next != c; p = p->next);
 380         if(p) {
 381                 p->next = c->next;
 382         } else {
 383                 clients = c->next;
 384         }
 385         free(c);
 386         if(clients == NULL)
 387                 gtk_main_quit();
 388 }
 389
 390 static void
 391 destroywin(GtkWidget* w, Client *c) {
 392         destroyclient(c);
 393 }
 394
 395 static void
 396 die(const char *errstr, ...) {
 397         va_list ap;
 398
 399         va_start(ap, errstr);
 400         vfprintf(stderr, errstr, ap);
 401         va_end(ap);
 402         exit(EXIT_FAILURE);
 403 }
 404
 405 static void
 406 drawindicator(Client *c) {
 407         gint width;
 408         const char *uri;
 409         char *colorname;
 410         GtkWidget *w;
 411         GdkGC *gc;
 412         GdkColor fg;
 413
 414         uri = geturi(c);
 415         w = c->indicator;
 416         width = c->progress * w->allocation.width / 100;
 417         gc = gdk_gc_new(w->window);
 418         if(strstr(uri, "https://") == uri) {
 419                 if(usingproxy) {
 420                         colorname = c->sslfailed? progress_proxy_untrust :
 421                                 progress_proxy_trust;
 422                 } else {
 423                         colorname = c->sslfailed? progress_untrust :
 424                                 progress_trust;
 425                 }
 426         } else {
 427                 if(usingproxy) {
 428                         colorname = progress_proxy;
 429                 } else {
 430                         colorname = progress;
 431                 }
 432         }
 433
 434         gdk_color_parse(colorname, &fg);
 435         gdk_gc_set_rgb_fg_color(gc, &fg);
 436         gdk_draw_rectangle(w->window,
 437                         w->style->bg_gc[GTK_WIDGET_STATE(w)],
 438                         TRUE, 0, 0, w->allocation.width, w->allocation.height);
 439         gdk_draw_rectangle(w->window, gc, TRUE, 0, 0, width,
 440                         w->allocation.height);
 441         g_object_unref(gc);
 442 }
 443
 444 static gboolean
 445 exposeindicator(GtkWidget *w, GdkEventExpose *e, Client *c) {
 446         drawindicator(c);
 447         return TRUE;
 448 }
 449
 450 static void
 451 find(Client *c, const Arg *arg) {
 452         const char *s;
 453
 454         s = getatom(c, AtomFind);
 455         gboolean forward = *(gboolean *)arg;
 456         webkit_web_view_search_text(c->view, s, FALSE, forward, TRUE);
 457 }
 458
 459 static void
 460 fullscreen(Client *c, const Arg *arg) {
 461         if(c->fullscreen) {
 462                 gtk_window_unfullscreen(GTK_WINDOW(c->win));
 463         } else {
 464                 gtk_window_fullscreen(GTK_WINDOW(c->win));
 465         }
 466         c->fullscreen = !c->fullscreen;
 467 }
 468
 469 static const char *
 470 getatom(Client *c, int a) {
 471         static char buf[BUFSIZ];
 472         Atom adummy;
 473         int idummy;
 474         unsigned long ldummy;
 475         unsigned char *p = NULL;
 476
 477         XGetWindowProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 478                         atoms[a], 0L, BUFSIZ, False, XA_STRING,
 479                         &adummy, &idummy, &ldummy, &ldummy, &p);
 480         if(p)
 481                 strncpy(buf, (char *)p, LENGTH(buf)-1);
 482         else
 483                 buf[0] = '\0';
 484         XFree(p);
 485         return buf;
 486 }
 487
 488 static char *
 489 geturi(Client *c) {
 490         char *uri;
 491
 492         if(!(uri = (char *)webkit_web_view_get_uri(c->view)))
 493                 uri = "about:blank";
 494         return uri;
 495 }
 496
 497 static gboolean
 498 initdownload(WebKitWebView *view, WebKitDownload *o, Client *c) {
 499         Arg arg;
 500
 501         updatewinid(c);
 502         arg = (Arg)DOWNLOAD((char *)webkit_download_get_uri(o), geturi(c));
 503         spawn(c, &arg);
 504         return FALSE;
 505 }
 506
 507 static void
 508 inspector(Client *c, const Arg *arg) {
 509         if(c->isinspector)
 510                 return;
 511         webkit_web_inspector_show(c->inspector);
 512 }
 513
 514 static WebKitWebView *
 515 inspector_new(WebKitWebInspector *i, WebKitWebView *v, Client *c) {
 516         Client *n = newclient();
 517         n->isinspector = true;
 518
 519         return n->view;
 520 }
 521
 522 static gboolean
 523 inspector_show(WebKitWebInspector *i, Client *c) {
 524         gtk_widget_show(GTK_WIDGET(webkit_web_inspector_get_web_view(i)));
 525         return true;
 526 }
 527
 528 static gboolean
 529 inspector_close(WebKitWebInspector *i, Client *c) {
 530         gtk_widget_hide(GTK_WIDGET(webkit_web_inspector_get_web_view(i)));
 531         return true;
 532 }
 533
 534 static void
 535 inspector_finished(WebKitWebInspector *i, Client *c) {
 536         g_free(c->inspector);
 537 }
 538
 539 static gboolean
 540 keypress(GtkWidget* w, GdkEventKey *ev, Client *c) {
 541         guint i;
 542         gboolean processed = FALSE;
 543
 544         updatewinid(c);
 545         for(i = 0; i < LENGTH(keys); i++) {
 546                 if(gdk_keyval_to_lower(ev->keyval) == keys[i].keyval
 547                                 && CLEANMASK(ev->state) == keys[i].mod
 548                                 && keys[i].func) {
 549                         keys[i].func(c, &(keys[i].arg));
 550                         processed = TRUE;
 551                 }
 552         }
 553
 554         return processed;
 555 }
 556
 557 static void
 558 linkhover(WebKitWebView *v, const char* t, const char* l, Client *c) {
 559         if(l) {
 560                 c->linkhover = copystr(&c->linkhover, l);
 561         } else if(c->linkhover) {
 562                 free(c->linkhover);
 563                 c->linkhover = NULL;
 564         }
 565         update(c);
 566 }
 567
 568 static void
 569 loadstatuschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 570         WebKitWebFrame *frame;
 571         WebKitWebDataSource *src;
 572         WebKitNetworkRequest *request;
 573         SoupMessage *msg;
 574         char *uri;
 575
 576         switch(webkit_web_view_get_load_status (c->view)) {
 577         case WEBKIT_LOAD_COMMITTED:
 578                 uri = geturi(c);
 579                 if(strstr(uri, "https://") == uri) {
 580                         frame = webkit_web_view_get_main_frame(c->view);
 581                         src = webkit_web_frame_get_data_source(frame);
 582                         request = webkit_web_data_source_get_request(src);
 583                         msg = webkit_network_request_get_message(request);
 584                         c->sslfailed = soup_message_get_flags(msg)
 585                                        ^ SOUP_MESSAGE_CERTIFICATE_TRUSTED;
 586                 }
 587                 setatom(c, AtomUri, uri);
 588                 break;
 589         case WEBKIT_LOAD_FINISHED:
 590                 c->progress = 100;
 591                 update(c);
 592                 break;
 593         default:
 594                 break;
 595         }
 596 }
 597
 598 static void
 599 loaduri(Client *c, const Arg *arg) {
 600         char *u, *rp;
 601         const char *uri = (char *)arg->v;
 602         Arg a = { .b = FALSE };
 603
 604         if(strcmp(uri, "") == 0)
 605                 return;
 606
 607         /* In case it's a file path. */
 608         if(uri[0] == '/') {
 609                 rp = realpath(uri, NULL);
 610                 u = g_strdup_printf("file://%s", rp);
 611                 free(rp);
 612         } else {
 613                 u = g_strrstr(uri, "://") ? g_strdup(uri)
 614                         : g_strdup_printf("http://%s", uri);
 615         }
 616
 617         /* prevents endless loop */
 618         if(c->uri && strcmp(u, c->uri) == 0) {
 619                 reload(c, &a);
 620         } else {
 621                 webkit_web_view_load_uri(c->view, u);
 622                 c->progress = 0;
 623                 c->title = copystr(&c->title, u);
 624                 g_free(u);
 625                 update(c);
 626         }
 627 }
 628
 629 static void
 630 navigate(Client *c, const Arg *arg) {
 631         int steps = *(int *)arg;
 632         webkit_web_view_go_back_or_forward(c->view, steps);
 633 }
 634
 635 static Client *
 636 newclient(void) {
 637         Client *c;
 638         WebKitWebSettings *settings;
 639         WebKitWebFrame *frame;
 640         GdkGeometry hints = { 1, 1 };
 641         char *uri, *ua;
 642
 643         if(!(c = calloc(1, sizeof(Client))))
 644                 die("Cannot malloc!\n");
 645
 646         /* Window */
 647         if(embed) {
 648                 c->win = gtk_plug_new(embed);
 649         } else {
 650                 c->win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 651
 652                 /* TA:  20091214:  Despite what the GNOME docs say, the ICCCM
 653                  * is always correct, so we should still call this function.
 654                  * But when doing so, we *must* differentiate between a
 655                  * WM_CLASS and a resource on the window.  By convention, the
 656                  * window class (WM_CLASS) is capped, while the resource is in
 657                  * lowercase.   Both these values come as a pair.
 658                  */
 659                 gtk_window_set_wmclass(GTK_WINDOW(c->win), "surf", "Surf");
 660
 661                 /* TA:  20091214:  And set the role here as well -- so that
 662                  * sessions can pick this up.
 663                  */
 664                 gtk_window_set_role(GTK_WINDOW(c->win), "Surf");
 665         }
 666         gtk_window_set_default_size(GTK_WINDOW(c->win), 800, 600);
 667         g_signal_connect(G_OBJECT(c->win),
 668                         "destroy",
 669                         G_CALLBACK(destroywin), c);
 670         g_signal_connect(G_OBJECT(c->win),
 671                         "key-press-event",
 672                         G_CALLBACK(keypress), c);
 673
 674         /* VBox */
 675         c->vbox = gtk_vbox_new(FALSE, 0);
 676
 677         /* Scrolled Window */
 678         c->scroll = gtk_scrolled_window_new(NULL, NULL);
 679         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(c->scroll),
 680                         GTK_POLICY_NEVER, GTK_POLICY_NEVER);
 681
 682         /* Webview */
 683         c->view = WEBKIT_WEB_VIEW(webkit_web_view_new());
 684         g_signal_connect(G_OBJECT(c->view),
 685                         "title-changed",
 686                         G_CALLBACK(titlechange), c);
 687         g_signal_connect(G_OBJECT(c->view),
 688                         "hovering-over-link",
 689                         G_CALLBACK(linkhover), c);
 690         g_signal_connect(G_OBJECT(c->view),
 691                         "create-web-view",
 692                         G_CALLBACK(createwindow), c);
 693         g_signal_connect(G_OBJECT(c->view),
 694                         "new-window-policy-decision-requested",
 695                         G_CALLBACK(decidewindow), c);
 696         g_signal_connect(G_OBJECT(c->view),
 697                         "mime-type-policy-decision-requested",
 698                         G_CALLBACK(decidedownload), c);
 699         g_signal_connect(G_OBJECT(c->view),
 700                         "window-object-cleared",
 701                         G_CALLBACK(windowobjectcleared), c);
 702         g_signal_connect(G_OBJECT(c->view),
 703                         "notify::load-status",
 704                         G_CALLBACK(loadstatuschange), c);
 705         g_signal_connect(G_OBJECT(c->view),
 706                         "notify::progress",
 707                         G_CALLBACK(progresschange), c);
 708         g_signal_connect(G_OBJECT(c->view),
 709                         "download-requested",
 710                         G_CALLBACK(initdownload), c);
 711         g_signal_connect(G_OBJECT(c->view),
 712                         "button-release-event",
 713                         G_CALLBACK(buttonrelease), c);
 714         g_signal_connect(G_OBJECT(c->view),
 715                         "populate-popup",
 716                         G_CALLBACK(populatepopup), c);
 717         g_signal_connect(G_OBJECT(c->view),
 718                         "resource-request-starting",
 719                         G_CALLBACK(beforerequest), c);
 720
 721         /* Indicator */
 722         c->indicator = gtk_drawing_area_new();
 723         gtk_widget_set_size_request(c->indicator, 0, indicator_thickness);
 724         g_signal_connect (G_OBJECT (c->indicator), "expose_event",
 725                         G_CALLBACK (exposeindicator), c);
 726
 727         /* Arranging */
 728         gtk_container_add(GTK_CONTAINER(c->scroll), GTK_WIDGET(c->view));
 729         gtk_container_add(GTK_CONTAINER(c->win), c->vbox);
 730         gtk_container_add(GTK_CONTAINER(c->vbox), c->scroll);
 731         gtk_container_add(GTK_CONTAINER(c->vbox), c->indicator);
 732
 733         /* Setup */
 734         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->indicator, FALSE,
 735                         FALSE, 0, GTK_PACK_START);
 736         gtk_box_set_child_packing(GTK_BOX(c->vbox), c->scroll, TRUE,
 737                         TRUE, 0, GTK_PACK_START);
 738         gtk_widget_grab_focus(GTK_WIDGET(c->view));
 739         gtk_widget_show(c->vbox);
 740         gtk_widget_show(c->scroll);
 741         gtk_widget_show(GTK_WIDGET(c->view));
 742         gtk_widget_show(c->win);
 743         gtk_window_set_geometry_hints(GTK_WINDOW(c->win), NULL, &hints,
 744                         GDK_HINT_MIN_SIZE);
 745         gdk_window_set_events(GTK_WIDGET(c->win)->window, GDK_ALL_EVENTS_MASK);
 746         gdk_window_add_filter(GTK_WIDGET(c->win)->window, processx, c);
 747         webkit_web_view_set_full_content_zoom(c->view, TRUE);
 748
 749         frame = webkit_web_view_get_main_frame(c->view);
 750         runscript(frame);
 751         settings = webkit_web_view_get_settings(c->view);
 752         if(!(ua = getenv("SURF_USERAGENT")))
 753                 ua = useragent;
 754         g_object_set(G_OBJECT(settings), "user-agent", ua, NULL);
 755         uri = g_strconcat("file://", stylefile, NULL);
 756         g_object_set(G_OBJECT(settings), "user-stylesheet-uri", uri, NULL);
 757         g_object_set(G_OBJECT(settings), "auto-load-images", loadimages,
 758                         NULL);
 759         g_object_set(G_OBJECT(settings), "enable-plugins", enableplugins,
 760                         NULL);
 761         g_object_set(G_OBJECT(settings), "enable-scripts", enablescripts,
 762                         NULL);
 763         g_object_set(G_OBJECT(settings), "enable-spatial-navigation",
 764                         enablespatialbrowsing, NULL);
 765         g_object_set(G_OBJECT(settings), "enable-developer-extras",
 766                         enableinspector, NULL);
 767
 768         if(enableinspector) {
 769                 c->inspector = WEBKIT_WEB_INSPECTOR(
 770                                 webkit_web_view_get_inspector(c->view));
 771                 g_signal_connect(G_OBJECT(c->inspector), "inspect-web-view",
 772                                 G_CALLBACK(inspector_new), c);
 773                 g_signal_connect(G_OBJECT(c->inspector), "show-window",
 774                                 G_CALLBACK(inspector_show), c);
 775                 g_signal_connect(G_OBJECT(c->inspector), "close-window",
 776                                 G_CALLBACK(inspector_close), c);
 777                 g_signal_connect(G_OBJECT(c->inspector), "finished",
 778                                 G_CALLBACK(inspector_finished), c);
 779                 c->isinspector = false;
 780         }
 781
 782         g_free(uri);
 783
 784         setatom(c, AtomFind, "");
 785         setatom(c, AtomUri, "about:blank");
 786         if(hidebackground)
 787                 webkit_web_view_set_transparent(c->view, TRUE);
 788
 789         c->title = NULL;
 790         c->next = clients;
 791         clients = c;
 792         if(showxid) {
 793                 gdk_display_sync(gtk_widget_get_display(c->win));
 794                 printf("%u\n",
 795                         (guint)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
 796                 fflush(NULL);
 797                 if (fclose(stdout) != 0) {
 798                         die("Error closing stdout");
 799                 }
 800         }
 801         return c;
 802 }
 803
 804 static void
 805 newwindow(Client *c, const Arg *arg, gboolean noembed) {
 806         guint i = 0;
 807         const char *cmd[10], *uri;
 808         const Arg a = { .v = (void *)cmd };
 809         char tmp[64];
 810
 811         cmd[i++] = argv0;
 812         if(embed && !noembed) {
 813                 cmd[i++] = "-e";
 814                 snprintf(tmp, LENGTH(tmp), "%u\n", (int)embed);
 815                 cmd[i++] = tmp;
 816         }
 817         if(!enablescripts)
 818                 cmd[i++] = "-s";
 819         if(!enableplugins)
 820                 cmd[i++] = "-p";
 821         if(!loadimages)
 822                 cmd[i++] = "-i";
 823         if(showxid)
 824                 cmd[i++] = "-x";
 825         cmd[i++] = "--";
 826         uri = arg->v ? (char *)arg->v : c->linkhover;
 827         if(uri)
 828                 cmd[i++] = uri;
 829         cmd[i++] = NULL;
 830         spawn(NULL, &a);
 831 }
 832
 833 static void
 834 populatepopup(WebKitWebView *web, GtkMenu *menu, Client *c) {
 835         GList *items = gtk_container_get_children(GTK_CONTAINER(menu));
 836
 837         for(GList *l = items; l; l = l->next) {
 838                 g_signal_connect(l->data, "activate", G_CALLBACK(popupactivate), c);
 839         }
 840
 841         g_list_free(items);
 842 }
 843
 844 static void
 845 popupactivate(GtkMenuItem *menu, Client *c) {
 846         /*
 847          * context-menu-action-2000     open link
 848          * context-menu-action-1        open link in window
 849          * context-menu-action-2        download linked file
 850          * context-menu-action-3        copy link location
 851          * context-menu-action-13       reload
 852          * context-menu-action-10       back
 853          * context-menu-action-11       forward
 854          * context-menu-action-12       stop
 855          */
 856
 857         GtkAction *a = NULL;
 858         const char *name;
 859         GtkClipboard *prisel;
 860
 861         a = gtk_activatable_get_related_action(GTK_ACTIVATABLE(menu));
 862         if(a == NULL)
 863                 return;
 864
 865         name = gtk_action_get_name(a);
 866         if(!g_strcmp0(name, "context-menu-action-3")) {
 867                 prisel = gtk_clipboard_get(GDK_SELECTION_PRIMARY);
 868                 gtk_clipboard_set_text(prisel, c->linkhover, -1);
 869         }
 870 }
 871
 872 static void
 873 pasteuri(GtkClipboard *clipboard, const char *text, gpointer d) {
 874         Arg arg = {.v = text };
 875         if(text != NULL)
 876                 loaduri((Client *) d, &arg);
 877 }
 878
 879 static void
 880 print(Client *c, const Arg *arg) {
 881         webkit_web_frame_print(webkit_web_view_get_main_frame(c->view));
 882 }
 883
 884 static GdkFilterReturn
 885 processx(GdkXEvent *e, GdkEvent *event, gpointer d) {
 886         Client *c = (Client *)d;
 887         XPropertyEvent *ev;
 888         Arg arg;
 889
 890         if(((XEvent *)e)->type == PropertyNotify) {
 891                 ev = &((XEvent *)e)->xproperty;
 892                 if(ev->state == PropertyNewValue) {
 893                         if(ev->atom == atoms[AtomFind]) {
 894                                 arg.b = TRUE;
 895                                 find(c, &arg);
 896                                 return GDK_FILTER_REMOVE;
 897                         }
 898                         else if(ev->atom == atoms[AtomGo]) {
 899                                 arg.v = getatom(c, AtomGo);
 900                                 loaduri(c, &arg);
 901                                 return GDK_FILTER_REMOVE;
 902                         }
 903                 }
 904         }
 905         return GDK_FILTER_CONTINUE;
 906 }
 907
 908 static void
 909 progresschange(WebKitWebView *view, GParamSpec *pspec, Client *c) {
 910         c->progress = webkit_web_view_get_progress(c->view) * 100;
 911         update(c);
 912 }
 913
 914 static void
 915 reload(Client *c, const Arg *arg) {
 916         gboolean nocache = *(gboolean *)arg;
 917         if(nocache)
 918                  webkit_web_view_reload_bypass_cache(c->view);
 919         else
 920                  webkit_web_view_reload(c->view);
 921 }
 922
 923 static void
 924 scroll_h(Client *c, const Arg *arg) {
 925         scroll(gtk_scrolled_window_get_hadjustment(
 926                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 927 }
 928
 929 static void
 930 scroll_v(Client *c, const Arg *arg) {
 931         scroll(gtk_scrolled_window_get_vadjustment(
 932                                 GTK_SCROLLED_WINDOW(c->scroll)), arg);
 933 }
 934
 935 static void
 936 scroll(GtkAdjustment *a, const Arg *arg) {
 937         gdouble v;
 938
 939         v = gtk_adjustment_get_value(a);
 940         switch (arg->i){
 941         case +10000:
 942         case -10000:
 943                 v += gtk_adjustment_get_page_increment(a) *
 944                         (arg->i / 10000);
 945                 break;
 946         case +20000:
 947         case -20000:
 948         default:
 949                 v += gtk_adjustment_get_step_increment(a) * arg->i;
 950         }
 951
 952         v = MAX(v, 0.0);
 953         v = MIN(v, gtk_adjustment_get_upper(a) -
 954                         gtk_adjustment_get_page_size(a));
 955         gtk_adjustment_set_value(a, v);
 956 }
 957
 958 static void
 959 setatom(Client *c, int a, const char *v) {
 960         XSync(dpy, False);
 961         XChangeProperty(dpy, GDK_WINDOW_XID(GTK_WIDGET(c->win)->window),
 962                         atoms[a], XA_STRING, 8, PropModeReplace,
 963                         (unsigned char *)v, strlen(v) + 1);
 964 }
 965
 966 static void
 967 setup(void) {
 968         char *proxy;
 969         char *new_proxy;
 970         SoupURI *puri;
 971         SoupSession *s;
 972
 973         /* clean up any zombies immediately */
 974         sigchld(0);
 975         gtk_init(NULL, NULL);
 976         if (!g_thread_supported())
 977                 g_thread_init(NULL);
 978
 979         dpy = GDK_DISPLAY();
 980
 981         /* atoms */
 982         atoms[AtomFind] = XInternAtom(dpy, "_SURF_FIND", False);
 983         atoms[AtomGo] = XInternAtom(dpy, "_SURF_GO", False);
 984         atoms[AtomUri] = XInternAtom(dpy, "_SURF_URI", False);
 985
 986         /* dirs and files */
 987         cookiefile = buildpath(cookiefile);
 988         scriptfile = buildpath(scriptfile);
 989         stylefile = buildpath(stylefile);
 990
 991         /* request handler */
 992         s = webkit_get_default_session();
 993
 994         /* cookie jar */
 995         soup_session_add_feature(s,
 996                         SOUP_SESSION_FEATURE(cookiejar_new(cookiefile,
 997                                         FALSE)));
 998
 999         /* ssl */
1000         g_object_set(G_OBJECT(s), "ssl-ca-file", cafile, NULL);
1001         g_object_set(G_OBJECT(s), "ssl-strict", strictssl, NULL);
1002
1003         /* proxy */
1004         if((proxy = getenv("http_proxy")) && strcmp(proxy, "")) {
1005                 new_proxy = g_strrstr(proxy, "http://") ? g_strdup(proxy) :
1006                         g_strdup_printf("http://%s", proxy);
1007                 puri = soup_uri_new(new_proxy);
1008                 g_object_set(G_OBJECT(s), "proxy-uri", puri, NULL);
1009                 soup_uri_free(puri);
1010                 g_free(new_proxy);
1011                 usingproxy = 1;
1012         }
1013 }
1014
1015 static void
1016 sigchld(int unused) {
1017         if(signal(SIGCHLD, sigchld) == SIG_ERR)
1018                 die("Can't install SIGCHLD handler");
1019         while(0 < waitpid(-1, NULL, WNOHANG));
1020 }
1021
1022 static void
1023 source(Client *c, const Arg *arg) {
1024         Arg a = { .b = FALSE };
1025         gboolean s;
1026
1027         s = webkit_web_view_get_view_source_mode(c->view);
1028         webkit_web_view_set_view_source_mode(c->view, !s);
1029         reload(c, &a);
1030 }
1031
1032 static void
1033 spawn(Client *c, const Arg *arg) {
1034         if(fork() == 0) {
1035                 if(dpy)
1036                         close(ConnectionNumber(dpy));
1037                 setsid();
1038                 execvp(((char **)arg->v)[0], (char **)arg->v);
1039                 fprintf(stderr, "surf: execvp %s", ((char **)arg->v)[0]);
1040                 perror(" failed");
1041                 exit(0);
1042         }
1043 }
1044
1045 static void
1046 eval(Client *c, const Arg *arg) {
1047         WebKitWebFrame *frame = webkit_web_view_get_main_frame(c->view);
1048         evalscript(webkit_web_frame_get_global_context(frame),
1049                         ((char **)arg->v)[0], "");
1050 }
1051
1052 static void
1053 stop(Client *c, const Arg *arg) {
1054         webkit_web_view_stop_loading(c->view);
1055 }
1056
1057 static void
1058 titlechange(WebKitWebView *v, WebKitWebFrame *f, const char *t, Client *c) {
1059         c->title = copystr(&c->title, t);
1060         update(c);
1061 }
1062
1063 static void
1064 toggle(Client *c, const Arg *arg) {
1065         WebKitWebSettings *settings;
1066         char *name = (char *)arg->v;
1067         gboolean value;
1068         Arg a = { .b = FALSE };
1069
1070         settings = webkit_web_view_get_settings(c->view);
1071         g_object_get(G_OBJECT(settings), name, &value, NULL);
1072         g_object_set(G_OBJECT(settings), name, !value, NULL);
1073
1074         reload(c,&a);
1075 }
1076
1077 static void
1078 gettogglestat(Client *c){
1079         gboolean value;
1080         WebKitWebSettings *settings = webkit_web_view_get_settings(c->view);
1081
1082         g_object_get(G_OBJECT(settings), "enable-caret-browsing",
1083                         &value, NULL);
1084         togglestat[0] = value? 'C': 'c';
1085
1086         g_object_get(G_OBJECT(settings), "auto-load-images", &value, NULL);
1087         togglestat[1] = value? 'I': 'i';
1088
1089         g_object_get(G_OBJECT(settings), "enable-scripts", &value, NULL);
1090         togglestat[2] = value? 'S': 's';
1091
1092         g_object_get(G_OBJECT(settings), "enable-plugins", &value, NULL);
1093         togglestat[3] = value? 'V': 'v';
1094
1095         togglestat[4] = '\0';
1096 }
1097
1098
1099 static void
1100 update(Client *c) {
1101         char *t;
1102
1103         gettogglestat(c);
1104
1105         if(c->linkhover) {
1106                 t = g_strdup_printf("%s| %s", togglestat, c->linkhover);
1107         } else if(c->progress != 100) {
1108                 drawindicator(c);
1109                 gtk_widget_show(c->indicator);
1110                 t = g_strdup_printf("[%i%%] %s| %s", c->progress, togglestat,
1111                                 c->title);
1112         } else {
1113                 gtk_widget_hide_all(c->indicator);
1114                 t = g_strdup_printf("%s| %s", togglestat, c->title);
1115         }
1116
1117         gtk_window_set_title(GTK_WINDOW(c->win), t);
1118         g_free(t);
1119 }
1120
1121 static void
1122 updatewinid(Client *c) {
1123         snprintf(winid, LENGTH(winid), "%u",
1124                         (int)GDK_WINDOW_XID(GTK_WIDGET(c->win)->window));
1125 }
1126
1127 static void
1128 usage(void) {
1129         die("usage: %s [-inpsvx] [-c cookiefile] [-e xid] [-r scriptfile]"
1130                 " [-t stylefile] [-u useragent] [uri]\n", basename(argv0));
1131 }
1132
1133 static void
1134 windowobjectcleared(GtkWidget *w, WebKitWebFrame *frame, JSContextRef js,
1135                 JSObjectRef win, Client *c) {
1136         runscript(frame);
1137 }
1138
1139 static void
1140 zoom(Client *c, const Arg *arg) {
1141         c->zoomed = TRUE;
1142         if(arg->i < 0) {
1143                 /* zoom out */
1144                 webkit_web_view_zoom_out(c->view);
1145         } else if(arg->i > 0) {
1146                 /* zoom in */
1147                 webkit_web_view_zoom_in(c->view);
1148         } else {
1149                 /* reset */
1150                 c->zoomed = FALSE;
1151                 webkit_web_view_set_zoom_level(c->view, 1.0);
1152         }
1153 }
1154
1155 int
1156 main(int argc, char *argv[]) {
1157         Arg arg;
1158
1159         memset(&arg, 0, sizeof(arg));
1160
1161         /* command line args */
1162         ARGBEGIN {
1163         case 'c':
1164                 cookiefile = EARGF(usage());
1165                 break;
1166         case 'e':
1167                 embed = strtol(EARGF(usage()), NULL, 0);
1168                 break;
1169         case 'i':
1170                 loadimages = 0;
1171                 break;
1172         case 'n':
1173                 enableinspector = 0;
1174                 break;
1175         case 'p':
1176                 enableplugins = 0;
1177                 break;
1178         case 'r':
1179                 scriptfile = EARGF(usage());
1180                 break;
1181         case 's':
1182                 enablescripts = 0;
1183                 break;
1184         case 't':
1185                 stylefile = EARGF(usage());
1186                 break;
1187         case 'u':
1188                 useragent = EARGF(usage());
1189                 break;
1190         case 'v':
1191                 die("surf-"VERSION", ©2009-2012 surf engineers, "
1192                                 "see LICENSE for details\n");
1193         case 'x':
1194                 showxid = TRUE;
1195                 break;
1196         default:
1197                 usage();
1198         } ARGEND;
1199         if(argc > 0)
1200                 arg.v = argv[0];
1201
1202         setup();
1203         newclient();
1204         if(arg.v)
1205                 loaduri(clients, &arg);
1206
1207         gtk_main();
1208         cleanup();
1209
1210         return EXIT_SUCCESS;
1211 }
1212